Control panel GEA Omni. Instruction Manual E_806550_2

Transcription

1 GEA Omni Instruction Manual E_806550_2

2 COPYRIGHT All Rights reserved. No part of this publication may be copied or published by means of printing, photocopying, microfilm or otherwise without prior written consent of GEA Refrigeration North America, Inc. herein after called manufacturer. This restriction also applies to the corresponding drawings and diagrams. LEGAL NOTICE This product information is a part of the documentation for the GEA Omni scope of delivery and serves as product presentation and customer advisory service. It contains important information and technical data regarding the product. The product information makes the technical, product related and commercial information available to the customer in detail before the sale of the product. This product information serves as a support and technical advisory service for our partners and customers as well as for the marketing team. Apart from serving as the medium for transfer of product knowhow, it also forms the basis for product demonstrations, the organization and conduction of technical seminars as well as the technical support at trade fairs. This product information should be supplemented with the information about the industrial safety and health related regulations at the site of installation of the product. The regulations vary form place to place as a result of the statutory regulations applicable at the site of installation of the product and are therefore have not been considered in this product information. In addition to this product information and the accident prevention regulations applicable for the respective country and area where the product is used, the accepted technical regulations for safe and professional work must also be observed. This product information has been written in good faith. However, the manufacturer cannot be held responsible for any errors that this document may contain or for their consequences. The manufacturer reserves the right to make technical changes during the course of further development of the GEA Omni shown in this product information. Illustrations and drawings in this product information are simplified representations. As a result of the improvements and changes, it is possible that the illustrations do not exactly match the current development status. The technical data and dimensions are subject to change and claims can be made on the basis of them. 2 GEA Refrigeration North America, Inc. E_806550_2 Generated

3 SYMBOLS USED IN THIS MANUAL Danger! Stands for an immediate danger which leads to heavy physical injuries or to the death. Warning! Stands for a possibly dangerous situation which leads to heavy physical injuries or to the death. Caution! Stands for a possibly dangerous situation which could lead to light physical injuries or to damages to property. Hint! Stands for an important tip whose attention is important for the designated use and function of the device. GEA Refrigeration North America, Inc. E_806550_2 Generated

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5 TABLE OF CONTENTS 1 SAFETY AND CONFORMITY Safety Instructions Safety note concerning the connection of the GEA Omni with the starter panel Conformity - CE marking (Europe) Conformity - UL marking (USA, Canada) 15 2 USER INTERFACE Menu Navigation Status Bar Logging In Current State Notifications, Warnings and Shutdowns General Navigation Tile Navigation Grid and Chart Navigation User Adjustable Fields Keyboard Keypad User Non-Adjustable Fields Drop Down Boxes and Text Edit OmniView Main Viewing Application Compressor Main Tab Classic Tab Vibration tab Starter tab Condenser Overview tab (Condenser sequencer) Main tab (Condenser sequencer) Schedule tab Main tab (Condenser water cooled) Evaporator Overview tab Main tab Evaporator for chiller Sequencer Overview tab Main tab Schedule Tab OmniNet OmniLink Tab Modbus TCP Tab History Bottom Menu Navigation RT-Trend Tab Chart Tab Annunciations Tab Analysis Tab Reporting Tab Documentation Documents Tab Videos Tab Service I/O Status Tab Maintenance Tab 76 GEA Refrigeration North America, Inc. E_806550_2 Generated

6 Activity Log Tab Touch Panel Tab Logic Tab File Manager Support Files Documents Tab Program Tab System Tab Apps Tab Configuration System Tab Sensors Tab Panel Settings Localization Tab Users Tab Network Tab Tab Panel Info CONTROL Compressor Control Parameters Capacity Control Control Variable Vi Motor Motor Power Motor Current Motor Interlock Motor Speed Motor Temperature Oil Pump Oil Pump Interlock Oil Differential Pressure Oil Filter Pressure Oil Separator Oil Temperature Suction Pressure Discharge Pressure Discharge Temperature Oil Cooling Inlet Temperature Outlet Temperature Loss of Remote Start Signal Power Failure Restart Superheat Economizer Pump Down Capacity Outputs VTrac Compressor Service Oil Still Control Parameters Oil Still Condenser Sequencer Control Parameters Schedule Wet Bulb Control Discharge Pressure Condenser Control Water Pump Lockout Condenser Device Control Parameters GEA Refrigeration North America, Inc. E_806550_2 Generated

7 3.4.1 Control Variable Speed Fan/Variable Speed Pump Water cooled condenser Evaporator Control Parameters Cooling Fan Cycling Defrost Suction Valve Settings Invert Solenoid Output Evaporator for Chiller Refrigerant Sensor Control Parameters Refrigerant Sensor Compressor Operating Data Analog Inputs/ Outputs Standard Calculated Values Digital Inputs/ Outputs Configuration Panel Configuration Compressor Configuration Normal Operating States Stopped Description Starting Description Running Description Stopping Description Additional Operating States Screw Compressor Capacity Control Forward and Reverse Variable Vi Operating Modes Types of Vi Control Systems Combined Vi Partial Load Control Lubrication System Full Time Full Time with No Prelube Startup No Pump IntelliSOC ANNUNCIATIONS Shutdowns List and Description of Compressor Shutdowns List and Description of Condenser Shutdowns List and Description of Evaporator Shutdowns List and Description of VTrac Shutdowns List and Description of Refrigerant Sensor Shutdowns List and Description of Drum Sequencer Shutdowns List and Description of Other Shutdowns Warnings List and Description of Compressor Warnings List and Description of Limitation Warnings List and Description of Condenser Warnings List and Description of Evaporator Warnings List and Description of Profibus Gateway Warnings List and Description of GEA BluAstrum Condenser Warnings List and Description of VTrac Warnings List and Description of Refrigerant Sensor Warnings List and Description of Oil Still Warnings List and Description of Other Warnings Notifications 223 GEA Refrigeration North America, Inc. E_806550_2 Generated

8 4.3.1 List and Description of Compressor Notifications List and Description of Condenser Notifications List and Description of Other Notifications SENSOR CALIBRATION Pressure Transducer Calibration ICTD Temperature Transducer Calibration Capacity Slide Position Calibration Compressor Capacity Slide Input Calibration with External Oil Pump Compressor Capacity Slide Input Calibration without External Oil Pump Calibration for Capacity Slide for Step Variable Vi Compressors Volume Slide Position Calibration Compressor Motor Current Calibration Capacity Slide Sensor Calibration Capacity Slide Calibration with External Oil Pump Capacity Slide Calibration without External Oil Pump LIST OF ABBREVIATIONS GEA Refrigeration North America, Inc. E_806550_2 Generated

9 TABLE OF FIGURES fig. 1 CE mark 15 fig. 2 UL mark 15 fig. 3 Initial Screen 16 fig. 4 Main menu bar 17 fig. 5 Default status bar 19 fig. 6 Expanded status bar 19 fig. 7 Default users 19 fig. 8 Remote Icon 20 fig. 9 User panel 20 fig. 10 Status panel 21 fig. 11 Annunciation icons 22 fig. 12 Annunciations panel 22 fig. 13 Sample Tile display 23 fig. 14 Keyboard display (Letters) 24 fig. 15 Keyboard Display (Numbers and symbols) 24 fig. 16 Keypad display 25 fig. 17 Main OmniView screen 26 fig. 18 Compressor tile 27 fig. 19 Condenser sequencer tile 27 fig. 20 Evaporator Tiles 28 fig. 21 Control level tile 28 fig. 22 Standard compressor buttons 29 fig. 23 Hold position options 30 fig. 24 Main tab display 31 fig. 25 Classic tab display 33 fig. 26 VTrac Damage view 34 fig. 27 VTrac Spectrum view 35 fig. 28 VTrac Options display 35 fig. 29 Starter tab display 36 fig. 30 Condenser overview tab 38 fig. 31 Condenser sequencer tile 38 fig. 32 Condenser fan tile 39 fig. 33 Condenser water pump tile 39 fig. 34 Main condenser tab (Condenser sequencer) 40 fig. 35 Main condenser tab (Condenser device) 41 fig. 36 Condenser schedule tab 42 fig. 37 Condenser schedule table 43 fig. 38 Condenser control buttons 44 fig. 39 Condenser timer control display 45 fig. 40 Condenser device control display 45 fig. 41 Main condenser tab (water cooled) 46 fig. 42 Evaporator Overview Tab 47 fig. 43 Zone Comparison Display 48 fig. 44 Evaporator Main Tab 49 fig. 45 Main evaporator for chiller 50 fig. 46 Sequencer overview tab 51 fig. 47 Control level tile 51 fig. 48 Compressor device tile 52 fig. 49 Add compressor display 52 fig. 50 Main sequencer tab (Control level) 53 fig. 51 Main sequencer tab (Compressor device) 54 fig. 52 Sequencer Schedule Tab 55 fig. 53 Sequencer Schedule Table 56 fig. 54 Sequencer Control Buttons 57 fig. 55 Sequencer Timer Control Display 58 GEA Refrigeration North America, Inc. E_806550_2 Generated

10 fig. 56 Compressor Device Control Display 58 fig. 57 OmniLink tab display 59 fig. 58 Modbus TCP tab display 60 fig. 59 The RT Trend button display 61 fig. 60 Edit view display 62 fig. 61 Chart tab button display 62 fig. 62 RT-Trend tab display (View - Graph) 64 fig. 63 RT-Trend tab display (View - Table) 64 fig. 64 Chart tab display (View - Graph) 65 fig. 65 Chart tab display (View - Table) 65 fig. 66 Annunciations tab display 66 fig. 67 Analysis tab display 68 fig. 68 Reporting tab display 69 fig. 69 Documents tile display 70 fig. 70 Sample document display 71 fig. 71 Videos tile display 72 fig. 72 Sample video display 72 fig. 73 I/O Status tab display 73 fig. 74 Sample digital input slice display 74 fig. 75 Sample digital output slice display 74 fig. 76 Compressor motor start notification 74 fig. 77 Sample analog input slice display 75 fig. 78 Sample analog output slice display 75 fig. 79 Maintenance tab display 76 fig. 80 Service task form display 77 fig. 81 Edit service tasks display 78 fig. 82 Service maintenance display 79 fig. 83 Activity log tab display 80 fig. 84 Touch panel tab display 82 fig. 85 Wash down icon 82 fig. 86 Logic diagram tab display 83 fig. 87 Support files tab display 84 fig. 88 Documents tab display 87 fig. 89 Program tab display 89 fig. 90 Update/Back up software display 90 fig. 91 Update/Back up configuration display 91 fig. 92 System tab display 92 fig. 93 Update/Back up system display 93 fig. 94 Factory default files display 93 fig. 95 Apps tab display 94 fig. 96 System tab display 95 fig. 97 Sensors tab display 96 fig. 98 Localization tab display 97 fig. 99 Users tab display 98 fig. 100 Network tab display 100 fig tab display 102 fig. 102 Panel info tab display 103 fig. 103 Estimated power demand, calculation formula 116 fig. 104 Project details options 183 fig. 105 Panel details options 185 fig. 106 Package details options 187 fig. 107 Oil system details options 191 fig. 108 Motor options 193 fig. 109 Remote Set Point Options 195 fig. 110 Suction options 195 fig. 111 Discharge options 196 fig. 112 Economizer details options 196 fig. 113 Forward acting capacity control GEA Refrigeration North America, Inc. E_806550_2 Generated

11 fig. 114 Reverse acting capacity control 201 fig. 115 Pressure Sensor Calibration Pad 225 fig. 116 Temperature Probe Calibration Pad 226 fig. 117 Capacity Slide Calibration Pad 227 fig. 118 Capacity Slide Calibration Pad (Step Variable Vi) 230 fig. 119 Volume Slide Calibration Pad 231 fig. 120 Motor Current Calibration Pad 232 GEA Refrigeration North America, Inc. E_806550_2 Generated

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13 1 1.1 Safety and Conformity Safety Instructions SAFETY AND CONFORMITY Safety Instructions The GEA Omni is reliable in operation if used as specified. Hint! Read the safety instructions in the GEA Omni operating manual before startup. The intended use includes the observance and compliance of all notices regarding hazard to persons and damage to property in the operating instructions, the country-specific standards and safety regulations, the instruction for installation, operation and maintenance, the details of certificates, the requirements for personnel, the obligation to exercise due care. Only compliance with all provisions and guidelines will enable optimum protection of the personnel as well as dangers to the environment and the safe and smooth operation of the GEA Omni. Warning! GEA Omni can cause hazard in case of improper or unintended use. A malfunction indication on the touch screen cannot be ignored. A personal injury or damage to the machine or plant can be the result. For precautions to prevent danger see safety instructions in the operating manual. Warning of electric shock! Danger of electric shock exists. More than one switch-disconnect may be necessary to isolate all electrical components. Before maintenance work on the control panel, make sure that all electrical components are switched off. Danger! It should be ensured at any time that all are necessary processes for compressor cooling and lubrication in operation as long as the compressor is in operation. This applies esprecially for the case where the compressor is unintentionally in operation. The unintentionally compressor operation can be determined by observation of the compressor motor feedback, the motor current or the motor speed. GEA Refrigeration North America, Inc. E_806550_2 Generated

14 Safety and Conformity Safety note concerning the connection of the GEA Omni with the starter panel Hint! To minimize the possibility of interference from electromagnetic signals in the operation of the ICTD temperature converters, the following wiring guidelines must be observed: 1.2 The signal cables should be two conductor shielded cable. Twisted pair cable is preferable. The signal cables should be run in conduits which do not contain any AC wiring. The signal cables should not be run in parallel or in close proximity to VFD power cables. All VFD equipment in the facility must be solidly grounded. If the ICTD sensors are not mounted on the skid or compressor package, the convertor should be mounted at the probe location. Operation of some high-powered radio or microwave communications equipment in close proximity to the ICTD temperature converters, ICTD sensors, or interconnecting wiring may result in inaccurate readings for the associated temperature(s). Safety note concerning the connection of the GEA Omni with the starter panel Hint! It is not permitted to add an external controller between the GEA Omni and the power panel; this would compromise the safety interlocks designed for protecting personnel and equipment. All control signals between the GEA Omni and the starter panel must be processed directly and must not flow indirectly via an external controller. GEA Refrigeration North America, Inc. cannot otherwise guarantee the safe operation of the system. 14 GEA Refrigeration North America, Inc. E_806550_2 Generated

15 Safety and Conformity Conformity - CE marking (Europe) 1.3 Conformity - CE marking (Europe) The CE marking of the GEA Omni takes place according to the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC. By affixing the CE mark, the manufacturer confirms the conformity of the product with the applicable EC Directives and compliance with the principle requirements stipulated within them. The CE mark is affixed in the cabinet. fig.1: CE mark 1.4 Conformity - UL marking (USA, Canada) The UL marking of the GEA Omni takes place according to the UL certification process and confirms the compliance with national standards in the United States and Canada. With affixing the UL marking, the manufacturer confirms the GEA Omni is built to the guidelines of UL. The UL mark is affixed in the cabinet. fig.2: UL mark GEA Refrigeration North America, Inc. E_806550_2 Generated

16 User interface 2 USER INTERFACE The screen shown below will appear when the GEA Omni panel is powered on. The central portion of the screen will change depending on the current display of the panel. The menu bar on the left displays options used for navigation between displays or interfaces. The status bar at the bottom displays important information regarding the status of the panel and its devices. Both the menu bar and the status bar will remain visible at all times. fig.3: Initial Screen 16 GEA Refrigeration North America, Inc. E_806550_2 Generated

17 User interface Menu Navigation 2.1 Menu Navigation fig.4: Main menu bar The menu bar is used to navigate through the various user interfaces available on the GEA Omni panel. Each option will display a new screen on the panel. For full information on a given option, see the associated section of the document. The options and their corresponding sections are shown in the list below. OmniView Section 2.4, Page 26 Compressor Section 2.5, Page 29 Condenser Section 2.6, Page 37 Evaporator Section 2.7, Page 46 Sequencer Section 2.8, Page 50 OmniNet Section 2.9, Page 58 History Section 2.10, Page 61 Documentation Section 2.11, Page 70 Service Section 2.12, Page 73 File Manager Section 2.13, Page 84 Configuration Section 2.14, Page 95 GEA Refrigeration North America, Inc. E_806550_2 Generated

18 User interface Menu Navigation Panel Settings Section 2.15, Page 97 Panel Info Section 2.16, Page GEA Refrigeration North America, Inc. E_806550_2 Generated

19 2.2 Status Bar fig.5: Default status bar User interface Status Bar The status bar is displayed along the bottom of the panel display and will be visible regardless of which screen is currently open on the panel. It displays the current user, the status of certain devices controlled by the panel, any notifications, warnings or shutdowns that have been annunciated and the current date and time. fig.6: Expanded status bar Touching anywhere on the status bar will bring up the sub-screen displayed above. The expanded status bar may be used to make changes to the user level, view detailed status information regarding controlled devices, or acknowledge and clear annunciations fig.7: Logging In Default users The bottom left corner of the panel displays the user who is currently logged in. The icon is also color coded to indicate the permissions each user has access to. When no user is logged in, this section will display Logged Out and the user icon will be red. Once a user has logged in, the name of the user will be displayed and the icon will change to green if the user s access level is Operator or Service, or yellow if the user s access level is Admin. Hint! Admin level is only for use by GEA certified technicians. GEA Refrigeration North America, Inc. E_806550_2 Generated

20 User interface Status Bar fig.8: Remote Icon Additionally, if the panel is currently being viewed remotely through OmniLink, the bottom left hand corner of the display will blink back and forth between the icon for the current user and the remote icon shown above. The remote icon is always colored blue and displays how many remote devices are currently viewing the panel display. fig.9: User panel The section shown to the far left of the sub-screen when the status bar is clicked displays a list of all users currently associated with the panel. For more information on adding or deleting users, refer to Instruction Manual Section , Page 98. If the user selected in the list is the one that is currently logged in, the Logout button will be enabled, which will cause the panel to display the Logged Out message until another user is logged in. The Login button will be enabled whenever a user account other than the one that is currently logged in is selected. When a user not currently signed in is selected, the Login button will be enabled. Touching it will bring up a numeric keypad which will allow the user to enter their password. If the correct password is entered, the selected user will be signed in on the panel. If another user is already logged in, logging in as a different user will result in them being signed out. The default passwords for the Operator, Service and Admin access levels are displayed in the table shown to the below. It is advisable to change these passwords once startup is completed. Access level Default password Operator 1 Service Admin GEA Refrigeration North America, Inc. E_806550_2 Generated

21 User interface Status Bar Hint! The Admin account will only be accessible on new panels if a USB containing the Admin Access Key file is plugged into the panel. In this case, the Admin password does not need to be entered. The Admin account will also be accessible for Retrofit panels and panels sold without a package or skid. In this case, the user will need to enter the Admin password displayed above. The account will remain enabled until the panel is commissioned fig.10: Current State Status panel The bottom center portion of the panel display shows the status of the compressor controlled by the panel. If multiple devices are controlled from a single panel, the display will cycle between them periodically. The section shown in the middle of the sub-screen when the status bar is clicked displays a list of all devices controlled by the panel, such as compressors and evaporators and their current status. GEA Refrigeration North America, Inc. E_806550_2 Generated

22 User interface Status Bar Notifications, Warnings and Shutdowns fig.11: Annunciation icons The bottom right portion of the status bar directly to the left of the date and time block will be clear during normal operation of the panel. If the panel ever annunciates a notification, warning or shutdown, the corresponding portion of the bar will flash with the number and type of the annunciation. fig.12: Annunciations panel The section shown to the far right of the sub-screen when the status bar is clicked displays detailed information about each annunciation. Along with an icon detailing the type of the annunciation, the display includes the name of the annunciation, along with the date and time that it was triggered. The buttons on the right of the display are used to acknowledge and clear annunciations. An annunciation with the acknowledge button, abbreviated ACK on the display, will not be removed from the list, even if the issue that caused the annunciation in the first place is resolved, until the button has been pressed. Other annunciations may be cleared using the Clear button, which will immediately remove the annunciation. However, if the condition that caused the annunciation in the first place has not been resolved, the annunciation will reappear in the list. Any annunciation that is tracked by the Omni Historian Section 2.10, Page 61 will also appear with a History button, which may be pressed to automatically open the historical table. 22 GEA Refrigeration North America, Inc. E_806550_2 Generated

23 User interface General Navigation 2.3 General Navigation The user interface (UI) for the GEA Omni makes use of a number of different navigation methods. The following is a brief description of each of these methods Tile Navigation fig.13: Sample Tile display (Documentation Screen) Certain screens, such as the Documentation and Configuration screens, display information divided across multiple tiles. Each tile corresponds to a specific element, such as a compressor or other device in the configuration screen or a specific document in the documentation screen. Touching a tile will display the information connected to the tile. For specific information regarding specific tiles see the appropriate section below. To return to the tile display, the Close button in the bottom right corner of the display must be clicked Grid and Chart Navigation Grid and chart displays, such as those displayed in the Main compressor screen and the History screen, contain detailed information divided into columns. For detailed information on specific tables, please see the appropriate section below. A table or grid may be navigated by using touch functionality to scroll through the data, or by touching a row and using the arrow buttons User Adjustable Fields Fields that may be modified by the user are indicated by a white background. These fields are used for data that may need to be modified while the panel is in operation. Exception: List of Control Parameters. Fields that may be modified by the user are indicated by a white or light blue background. GEA Refrigeration North America, Inc. E_806550_2 Generated

24 User interface General Navigation Keyboard When a field is selected that allows a text string to be entered by the user, the keyboard shown below will appear in the lower half of the screen. fig.14: Keyboard display (Letters) The letter keys may be used in the same manner as a normal keyboard. The &123 button changes the display of the keyboard to the one shown below, which is used to add numbers or frequently used symbols to the string. fig.15: Keyboard Display (Numbers and symbols) 24 GEA Refrigeration North America, Inc. E_806550_2 Generated

25 User interface General Navigation Keypad When a field is selected that allows only numeric value to be entered by the user, the keypad shown below will appear in the lower half of the screen. The number keys may be used to enter a new value for the field, and the +/- key is used to change the sign of the value. fig.16: Keypad display User Non-Adjustable Fields Fields that may not be modified by the user are indicated by a dark gray background. These fields are used for information that is intended to be displayed only Drop Down Boxes and Text Edit Various fields that allow user input are in the form of text boxes and drop down lists. A text box appears as a blank white box and may be used to enter any text string the user desires. Drop down lists are differentiated from text boxes by a downward pointing arrow on the far right. These fields have a predetermined list of possible values which appear in a vertical list when the arrow is clicked, from which the user may select the desired value. GEA Refrigeration North America, Inc. E_806550_2 Generated

26 User interface OmniView 2.4 OmniView fig.17: Main OmniView screen 26 GEA Refrigeration North America, Inc. E_806550_2 Generated

27 User interface OmniView Main Viewing Application The main OmniView screen will display tiles corresponding to each device controlled by the panel. Each tile displays the name and pertinent information for the associated device. Standard Devices 1. Compressor Tiles corresponding to compressors display the name, set point, status and current values associated with the compressor. While the capacity of the compressor is being increased, an upward facing arrow will be displayed in the lower right hand corner of the tile. Similarly, a downward facing arrow will be displayed in the bottom left hand corner of the tile if the compressor capacity is being decreased. The color of the tile is determined by the current status of the compressor. If the compressor is not connected, the tile will be colored gray. The other colors, in order of precedence, are: fig.18: Compressor tile Red/ light green flash: Illegally Started Red: Shutdown Light green: Running Yellow: Warning Dark green: Stopped Touching any tile will open the compressor screen for the selected compressor. Refer to Section 2.5, Page 29 for full details on compressor operation. 2. Condenser Sequencer The tile corresponding to the condenser sequencer displays important information relating to the control of condenser devices. The information displayed, from top to bottom, includes: Control value Set point Status Current step Fans running Pumps running fig.19: Condenser sequencer tile GEA Refrigeration North America, Inc. E_806550_2 Generated

28 User interface OmniView Touching the condenser sequencing tile will open the overview screen for the condenser. Refer to Section 2.6, Page 37 for full details on condenser control. 3. Evaporator These tiles each correspond to an evaporator zone. Each tile displays the name of the evaporator, the current zone temperature. Depending on the current status of the zone, the tile will also display either the time remaining on the defrost cycle or the temperature set point the zone is in the process of cooling to. The zone status is indicated by the color of the tile. The colors are: Light Blue: Tiles of this color indicate that the associated zone is in cooling mode. Dark Red: Tiles of this color indicate that the associated zone is currently in defrost mode. fig.20: Evaporator Tiles Touching any tile will open the evaporator screen for the selected zone. Refer to Section 2.7, Page 46 for full details on evaporator operation. 4. Control Level (for compressor sequencing) These tiles each correspond to a control level for use in compressor sequencing. The information displayed on each tile, from top to bottom, includes: Control value Set point Status Current step Compressors running Compressors available fig.21: Control level tile Touching any control level tile will open the overview screen for the sequencer. Refer to Instruction Manual Section 2.8, Page 50 for full details on compressor sequencing. 28 GEA Refrigeration North America, Inc. E_806550_2 Generated

29 User interface Compressor 2.5 Compressor The Compressor menu is used to control each compressor from the panel. There are multiple tabs which are detailed below. The bottom of the screen contains the eight standard buttons used to control the compressor. Active buttons are illuminated with black text and a white outline while inactive buttons are darkened with white text. fig.22: Standard compressor buttons The buttons are: 1. STOP This button is illuminated whenever the compressor is in the stopped state, whether through a normal stoppage or through a shutdown condition. Touching this button will initiate the stopping procedure. For more information, refer to Section 3.9.4, Page 198. While the compressor is in the stopping process, this button will flash. Touching the button a second time will cause the compressor to stop without unloading. 2. START This button is illuminated whenever the compressor is running in local mode. Touching this button will attempt to start the compressor. If the compressor is in the process of starting, this button will flash. Once the compressor has started, the button will be illuminated continuously. If the compressor is in Automatic Start/Stop mode, this button will display an A in its upper left hand corner and will resume flashing if it has been automatically stopped to allow pressure to build. 3. REMOTE This button is illuminated whenever the compressor is set to receive instructions from an external source, such as a sequencer. Touching this button will switch the compressor from local to remote control. 4. AUTO This button is illuminated whenever the compressor is set to control its capacity automatically based on the control signal. Touching the button will switch the compressor to Automatic mode. GEA Refrigeration North America, Inc. E_806550_2 Generated

30 User interface Compressor 5. HOLD This button is illuminated when the compressor is set to maintain its current capacity and will not load or unload for any other reason. Touching and holding the button will display a block of additional buttons based on the type of the compressor. Alternatively, simply touching the button will cause the compressor to hold at its current capacity slide position. The example shown below displays the options for a screw compressor, and may be used to select the capacity slide position at which the compressor should hold. fig.23: Hold position options 6. LOAD The gray bar on the right of this button represents an LED. Whenever the Load Solenoid of the compressor is energized, the LED will be illuminated green. Touching and holding the button while the compressor is running in Local mode will force the compressor to increase capacity unless a limitation for capacity increase is active. This will also force the compressor into Hold mode. 7. UNLOAD The gray bar on the right of this button represents an LED. Whenever the Unload Solenoid of the compressor is energized, the LED will be illuminated green. Touching and holding the button while the compressor is running in Local mode will force the compressor to decrease capacity unless a limitation for capacity decrease is active. This will also force the compressor into Hold mode. 8. EXTERNAL Touching the button will force the compressor s capacity mode into External mode. This button will be illuminated when the capacity of the compressor is being controlled remotely from an external device. 30 GEA Refrigeration North America, Inc. E_806550_2 Generated

31 User interface Compressor Main Tab fig.24: Main tab display This screen contains all of the operational data for the compressor. For panels configured to control a single compressor, this screen will be the default display. If multiple compressors are controlled from the panel, this tab will display information pertaining to the compressor most recently selected in the tile display of the Overview Tab detailed in section "Overview Tab" (not yet available at the moment). If no tile has been selected in the overview screen, this screen will display the first compressor. The display is divided into three parts: GEA Refrigeration North America, Inc. E_806550_2 Generated

32 User interface Compressor 1. Main Compressor Display This portion of the screen displays the current status of the compressor. The color of the display is dependent on the status of the compressor. The colors, in order of precedance, are: Red/ light green flash: Illegally Started Red: Shutdown Light green: Running Yellow: Warning Dark green: Stopped 2. Operating Data This table contains the current values associated with the compressor. The information in the table is divided into three columns. The left column contains the slice location of the value, if applicable. If the row in question does not correspond to a slice location, this column will be blank. The middle column contains the name of the variable. The right column contains the current value and units of the variable, if applicable. The Edit Grid button in the upper right corner of the table will display a fourth column containing check boxes which allows the user to toggle which rows are displayed. A checked row is displayed, while an unchecked row is hidden. While the check boxes are displayed, the text of the Edit Grid button will change to Save Grid. Touching the button a second time will hide the fourth column and display only selected rows. Each user may customize the values displayed in this table separately. For details on individual elements of the Operating Data display, refer to Section 3.7, Page Control Parameters This table contains the name and current values of the parameters used to control the compressor. Each parameter may be edited by touching the row and either selecting an option from a list of possibilities,or entering a new value using the keypad or keyboard. The color of the text indicates whether the value may be edited; blue values may be modified, gray values may not. For normal operation, only the parameters that may be edited by the user are displayed. Touching the Advanced View button will instead display all parameter data. This will also change the text of the button to Basic View, which may be clicked a second time to only display the editable parameter data. For details on individual control parameters, refer to Section 3.1, Page GEA Refrigeration North America, Inc. E_806550_2 Generated

33 User interface Compressor Classic Tab fig.25: Classic tab display This screen displays the most important operating data for the compressor. The gauges shown in the upper portion of the screen display the suction, oil differential and discharge readings, the indicator shown in the bottom left corner displays the current capacity slide valve reading, and the values displayed in the bottom right show the run time, current and rpm of the motor. The rpm reading will only be displayed if the motor has a variable speed drive Vibration tab This screen displays information pertaining to the VTrac vibration sensor. It will only be displayed if VTrac is enabled in the configuration of the panel. The data may be displayed in two different formats. The format currently displayed may be switched by touching the button which is displayed to the left of the options button in the bottom right hand corner of the screen. The text of the view button is dependent on the view format currently displayed. The text will read Spectrum View while the damage view format is displayed, and the will instead read Damage View while the spectrum view format is displayed. GEA Refrigeration North America, Inc. E_806550_2 Generated

34 User interface Compressor fig.26: VTrac Damage view Damage view, as shown above, displays the currently measured vibration of any of the available VTrac sensors in the form of a horizontal bar graph. Each row corresponds to a different measurement point on a sensor. Certain sensors contain multiple points of measurement. The text located along the right edge of the screen displays the name of each measured point, with the sensor channel the point is associated with displayed in parentheses. The numbers along the vertical axis of the graph display the current value measured at the associated point, and the horizontal axis denotes the vibration level. Each bar is color coded as detailed below: Blue: This portion of the bar displays the current vibration level read by the sensor at the associated point. Gray: This portion of the bar represents the safe range of vibration levels that the associated point may operate under. As long as the measured value remains within this range, no warnings or shutdowns will be annunciated. Yellow: This portion of the bar represents the range of vibration levels where the monitored component is in danger of being damaged if the vibrations continue to increase. If the measured value ever falls within this range, a warning condition will be annunciated for the component in question. Red: This portion of the bar represents the range of vibration levels within which the monitored component is in immediate danger of damage due to the vibrations. If the measured value ever falls within or exceeds this range, a shutdown condition will be annunciated. By default, the measurements from all channels of the VTrac are viewed simultaneously. However, the drop down list displayed at the bottom of the screen may be used to limit the display to a single channel. When a channel is selected from the list, the graph will rescale to display only the measurement point or points associated with it. 34 GEA Refrigeration North America, Inc. E_806550_2 Generated

35 User interface Compressor fig.27: VTrac Spectrum view The spectrum view, as shown above, displays the raw reading from the channel selected in the drop down list at the bottom of the screen. Multiple channels may not be displayed simultaneously in this view. The vertical axis of the graph displays the vibration measurement and the horizontal axis displays the frequency. Both measurements are displayed in the current units as selected in the Options screen described below. The second drop down list is used to select the scale of the measurements. The selected value indicates the distance between each tick on the vibration level axis. The options are dependent on the selected panel units. fig.28: VTrac Options display Touching the Options button displayed in the bottom right hand corner in either view will bring up the options screen shown above. The options are: GEA Refrigeration North America, Inc. E_806550_2 Generated

36 User interface Compressor 1. Analysis Mode This drop down list is used to select the vibration analysis method that will be used. The vibration analysis is always carried out using a variant of the Fast Fourier Transform. The options are used to select whether an envelope will be used in the analysis. The options are: FFT This option is used to select a normal Fast Fourier Transform. H-FFT 2. Units This option is used to select a Fast Fourier Transform with an envelope. This drop down list is used to select the units that will be used for measuring vibration. The options are: inches/s mg 3. Frequency This option is used when vibration should be measured in terms of velocity. This option is used when vibration should be measured in terms of acceleration. This drop down list is used to select the units that will be used for measuring frequency. The options are: CPM Hz This option is used when frequency should be measured in Cycles per minute. This option is used when frequency should be measured in Hertz Starter tab fig.29: Starter tab display 36 GEA Refrigeration North America, Inc. E_806550_2 Generated

37 User interface Condenser This screen is used to control the compressor starter. It is only displayed if motor starter communication is enabled. 1. Starter information This tile displays the current status, runtime, amperage and rpm of the starter. The color of the tile indicates the current status of the starter. 1.1 Gray: This color indicates that the starter is not currently communicating with the panel. 1.2 Dark Green: This color indicates that the starter is currently stopped. 1.3 Light Green: This color indicates that the starter is currently running. 1.4 Red: This color indicates that the starter is currently in a shutdown state. 2. Starter faults The Clear Faults button may be used to clear any active faults found in the starter. 3. Default settings The Load Default Settings button may be used to restore the starter to its factory default settings. 4. Starter parameters This table displays the control parameters read from the starter. Each starter has its own unique parameters list. For more information regarding the specific function of each parameter, refer to the manual associated with the starter in use by the panel. 2.6 Condenser GEA Refrigeration North America, Inc. E_806550_2 Generated

38 User interface Condenser Overview tab (Condenser sequencer) fig.30: Condenser overview tab This screen contains a tile display which represents the condenser system and devices. The tile in the upper left corner represents the condenser sequencer. The sequencer tile, as shown below, displays important information relating to the condenser control, including, status, set point, control value, the number of fans running and the number pumps running. fig.31: Condenser sequencer tile All other tiles shown on the overview display represent different condenser devices. Each tile displays the current status of the device and whether control is currently enabled. For variable speed devices, the current speed will also be displayed. The type of device is indicated by the symbol. The different types of devices are: Fans 38 GEA Refrigeration North America, Inc. E_806550_2 Generated

39 User interface Condenser fig.32: Condenser fan tile Pumps fig.33: Condenser water pump tile Touching any tile will open the Main Tab of the Condenser Screen, detailed in Section 2.6.2, Page 39 below Main tab (Condenser sequencer) This screen is used to display the current status and control parameters of the condenser sequencer and individual devices. The display will change depending on whether it is currently showing the status of the sequencer or an individual device. When the sequencer tile is touched, the main tab will display the screen shown below: GEA Refrigeration North America, Inc. E_806550_2 Generated

40 User interface Condenser fig.34: Main condenser tab (Condenser sequencer) 1. Sequencer information This tile displays the current status, set point and control value of the sequencer. 2. Device enabled This switch is used to toggle whether or not the condenser sequencing is currently permitted to run. 3. Control parameters This table contains the parameters used during condenser sequencing. The values may be manually changed by touching a row. For more information regarding the specific function of each parameter, refer to Section 3.3, Page 157. When a device tile is touched, the main tab display will instead appear as shown below. 40 GEA Refrigeration North America, Inc. E_806550_2 Generated

41 User interface Condenser fig.35: Main condenser tab (Condenser device) 1. Device information This tile displays the name, current status, set point and control value of the selected device. The current speed will also be displayed here for variable speed devices. 2. Device enabled This switch is used to toggle whether or not the device is currently permitted to run. 3. Control parameters This table contains parameters containing basic information regarding the selected condenser. The values may be manually changed by touching a row. For more information regarding the specific function of each parameter, refer to Section 3.4, Page 163. Touching the Main tab displayed at the top of the screen will bring up the display corresponding to the most recently selected tile. If no tile has been previously selected in the Overview tab, the panel will bring up the information of the condenser sequencer by default. GEA Refrigeration North America, Inc. E_806550_2 Generated

42 User interface Condenser Schedule tab fig.36: Condenser schedule tab This screen is used to display and modify the condenser sequencer schedule. The main portion of the display contains the currently selected control schedule, which is displayed in table format with each condenser device assigned to a column and each row corresponding to a different step. The sequencer supports four independent schedules, each containing up to fifty steps. The components of the display are: 1. Schedule information This section contains the user defined name for the currently selected schedule, the target set point and the current condenser status. 2. Control value This section displays the current value of the condenser control value. 3. Hide/ show timers This button controls whether or not the three initial columns of the schedule table, containing the time delays used while the sequencer is running automatically, are displayed. 4. Schedule selection This drop down list is used to select which schedule is currently displayed. 42 GEA Refrigeration North America, Inc. E_806550_2 Generated

43 User interface Condenser 5. Schedule table This table displays all steps that will be executed by the condenser sequencer during normal panel operation. fig.37: Condenser schedule table a. Current step This icon indicates which step is currently being executed by the sequencer. b. Previous timer This column contains the period of time that the sequencer will wait before changing steps once it has been instructed to switch to the previous step. This column will not appear if the Hide Timers button has been clicked. c. Soak timer This column contains the period of time that the sequencer must remain on the current step before determining if it should step ahead to the next step, step back to the previous step, or remain on the current step. This column will not appear if the Hide Timers button has been clicked. d. Next timer This column contains the period of time that the sequencer will wait before changing steps once it has been instructed to switch to the next step. This column will not appear if the Hide Timers button has been clicked. e. Condenser devices These columns each correspond to an individual condenser device. The contents of each cell dictate what action the device will take during the associated step. The options are: Run This option is only available for single speed fans and pumps. It will cause the device to activate during the associated step. Stop This option is available for all devices. It will cause the device to deactivate during the associated step. Hold GEA Refrigeration North America, Inc. E_806550_2 Generated

44 User interface Condenser This option is only available for variable speed devices. Whenever it is selected, the device will continue to run at its current speed during the associated step. Auto 6. Control buttons This option is only available for variable speed devices. Whenever it is selected, a percentage value may be entered, corresponding to a percent of the device s maximum speed. The device adjusts its speed automatically to match the chosen value and continue to make adjustments to maintain the chosen value during the associated step. fig.38: Condenser control buttons These buttons are used to control the sequencer. The buttons are: a. Auto As long as this button is illuminated, the sequencer will run automatically based on the values entered in the three timer columns. b. Hold As long as this button is illuminated, the sequencer will remain on the currently selected step. c. Next When this button is touched, the sequencer will immediately switch from the current step to the next step below it in the table. If the sequencer is already on the final step, touching this button will have no effect. d. Previous When this button is touched, the sequencer will immediately switch from the current step to the previous step above it in the table. If the sequencer is already on the first step, touching this button will have no effect. The values in the table display may be modified by touching the appropriate cell of the table. Whenever a cell containing a timer is touched, the sub-window below will be displayed. 44 GEA Refrigeration North America, Inc. E_806550_2 Generated

45 User interface Condenser fig.39: Condenser timer control display The value of the timer may be changed with the number pad, and the units may be changed with the drop down list in the middle. If the Apply to all Timers box is checked, any change made to one timer will affect all timers in the same column. The arrow keys may be used to navigate through the table. Whenever a cell in a condenser device column is touched, the sub window will instead appear as shown below: fig.40: Condenser device control display The state the condenser should enter in the given step may be selected in the central options block. For certain options which require a percentage of the maximum capacity to be specified, the second options block will be enabled. A percentage between 0% and 100 %, incremented in values of 5%, may be selected from this list. GEA Refrigeration North America, Inc. E_806550_2 Generated

46 User interface Evaporator Main tab (Condenser water cooled) This screen is used to display the current status and control parameters of the condenser (water cooled). If a water cooled condenser is used only the main tab is available. The main tab will display the screen shown below: fig.41: Main condenser tab (water cooled) 1. Condenser (water cooled) information This tile displays the current status of the condenser and the discharge pressure. 2. Operating Data This table displays the name, I/O slice location and current state of the digital points associated with the zone. 3. Control parameters This table contains the parameters used. The value can be manually changed by touching a row. For more information regarding the specific function of each parameter, refer to Section 3.4.3, Page Evaporator Evaporator control is based on temperature. The evaporator temperature controls the operation of the zone based on its set point and related parameters. A reset delay prevents all solenoids in the system from turning on at the same time. Any time the control panel is powered-up, reset, or after a shutdown condition, all evaporator zones will be placed into a reset delay condition. The first zone placed into operation is given a five second reset delay, and each subsequent zone that is enabled and not currently in a shutdown will be assigned a reset delay equal to the previous zone s delay plus five seconds. This allows the evaporator zones to come out of reset delay in any order. A zone that is in reset delay will be represented by a dark green tile on the overview screen, and will display the remaining time until it will be permitted to start. The defrost cycle for an Evaporator zone may be initiated in one of three ways: 46 GEA Refrigeration North America, Inc. E_806550_2 Generated

47 User interface Evaporator A manual initiate triggered through either the touch screen or communications. An automatic defrost based on the run time of the zone s liquid solenoid. A daily defrost based on the current time of day. With any of the modes of defrosting, the zone is placed into defrost immediately if no other zone on the same group is defrosting. If another zone on the same group is in defrost, the zone will instead be placed into pending defrost until the zone currently defrosting has completed the cycle. The defrosting cycle may contain up to twelve stages. The amount of time the zone will remain in each stage is user adjustable Overview tab fig.42: Evaporator Overview Tab This screen normally contains a tile display which represents the evaporator system. Each tile represents an individual zone and displays the zone name, current temperature, set point, current status and defrost group. The color of each tile indicates the current status of the associated zone. The colors are: Grey: Disabled Dark Green: Stopped/ Waiting to Start Light Green: Starting Light Blue:Cooling Dark Red: -Defrost Light Red: Zone Shutdown Yellow: Zone Warning Touching a tile will open the Main Tab of the Evaporator Screen, detailed in Section 2.7.2, Page 48 below. The behavior and view on this screen may be modified using the buttons found in the lower right hand corner of the window. The functions of the buttons are detailed below. GEA Refrigeration North America, Inc. E_806550_2 Generated

48 User interface Evaporator 1. Enable Scrolling/Swap Position This button is used to determine the touch and drag functionality of the screen. Touching the button will switch the mode and change the button text to the disabled mode. While scrolling is enabled, the touch and drag functionality will slide the tile display in the opposite direction. This will only function is the system contains too many tiles to display them all on the screen at once. While swapping is enabled, touching and holding a tile will allow it to be dragged to a new location in the display. In either mode, touching and releasing any tile in the display will open the Main Tab of the Evaporator screen. 2. Compare This button will only be enabled while swapping tile locations is enabled, as detailed above. It is used to change the display of the overview screen so that it will show a detailed view of two zones side by side. When it is touched, the button text will change to read Select. Until the button is touched again, touching a tile will mark it with a check in its upper right hand corner rather than opening the Main Tab. When two tiles are selected and the button is touched a second time, the screen will change to display the parameters and operating data of the selected zones. fig.43: Zone Comparison Display Touching the Close button in the bottom right hand corner of the screen will return the Overview screen to the main tile display Main tab This screen is used to display the current status and control parameters of an individual evaporator zone. 48 GEA Refrigeration North America, Inc. E_806550_2 Generated

49 User interface Evaporator fig.44: Evaporator Main Tab 1. Zone Information This tile displays name, temperature set point, current temperature and status of the zone. 2. Operating Data This table displays the name, I/O slice location and current state of the digital points associated with the zone. 3. Control Parameters This table contains the parameters used to control the zone. The values may be manually changed by touching a row. For more information regarding the specific function of each parameter, refer to Section 3.5, Page Control Buttons These buttons are used to manually control the functions of the zone. Enabled/ Disabled This button controls whether the zone is currently permitted to run. The button will appear light grey while the zone is enabled, and dark grey while it is disabled. Defrost Start/ Defrost Stop This button is used to manually initiate a defrost cycle for the zone. If no zones are currently defrosting, touching the button will cause the zone to begin its defrost cycle. During normal operation, only one zone per group may be in defrost mode at a time. If another zone is already in defrost, the zone information tile will display a Pending Defrost timer. Once the zone currently in defrost finishes the cycle, the zone that has been waiting for the longest period of time will begin defrosting. Touching the button a second time will override the Pending Defrost timer and begin the defrost cycle regardless of whether other zones in the group are defrosting. The defrost group a zone is associated with is selected in the control parameters. While the zone is defrosting, the button will be colored red and the text will change to Defrost Stop. Touching the button again will immediately stop the zone from defrosting. GEA Refrigeration North America, Inc. E_806550_2 Generated

50 User interface Sequencer Evaporator for chiller This screen is used to display the current status and control parameters of an evaporator for chiller. If a chiller evaporator is used only the main tab is available. fig.45: Main evaporator for chiller 1. Evaporator Information This tile displays name, temperature set point, current temperature and the status of the evaporator. 2. Operating Data This table displays the name, I/O slice location and current state of the digital points associated with the evaporator. 3. Control Parameters This table contains the parameters used to control the evaporator. The values can be manually changed by touching a row. For more information regarding the specific function of each parameter refer Section 3.5.6, Page Sequencer 50 GEA Refrigeration North America, Inc. E_806550_2 Generated

51 User interface Sequencer Overview tab fig.46: Sequencer overview tab This screen contains a tile display which represents the compressor sequencing system. The blue tiles located on the left side of the display represent the individual control levels and display the current status, set point, control value, current step and number of compressor devices for each. A sample control level tile is shown below. fig.47: Control level tile All other tiles represent individual compressors. Each tile contains the compressor name, its current status and the control value. The number in the upper right hand corner of the tile indicates which control level the compressor is associated with. A sample compressor tile is shown below. GEA Refrigeration North America, Inc. E_806550_2 Generated

52 User interface Sequencer fig.48: Compressor device tile The color of the tile is dependent on the current state of the compressor. The colors are: Gray: This color indicates that the associated compressor is not currently communicating with the panel. Dark green: This color indicates that the associated compressor is currently stopped. Light green: This color indicates that the associated compressor is currently running. Yellow: This color indicates that the associated compressor is currently in a Warning state. Red: This color indicates that the associated compressor is currently in a Shutdown state. Compressor tiles may be added or removed from the display using the buttons in the bottom right hand corner of the tile display. Clicking the Add button will bring up the sub window shown below, which may be used to configure a new compressor. fig.49: Add compressor display 1. This panel This switch is used to select whether the control for the associated compressor is local to the panel or if the sequencer can only control the compressor remotely through a network connection. 2. Brand ID This drop down list is used to select the type of panel associated with the tile. This field will only be enabled if the This Panel switch is disabled. 3. IP address This text box is used to enter the network location where the local panel controlling the compressor may be found. This field will only be enabled if the This Panel switch is disabled. 52 GEA Refrigeration North America, Inc. E_806550_2 Generated

53 User interface Sequencer 4. Compressor selection This drop down list is used to select the number of the compressor. The options are dependent on the type of panel affiliated with the compressor. 5. Level This drop down list is used to select which of the available control levels the compressor will be sequenced on. Any level that is currently enabled will appear in the options. 6. Unit ID This drop down list is used to select the Modbus ID of the panel. This option will only be used if the sequencer utilizes an Ethernet to Serial communication convertor. 7. Device tag This drop down list is used to select the name that will be associated with the compressor. Clicking any tile will open the main tab for the compressor sequencer as detailed in Section 2.8.2, Page Main tab This screen is used to display the current status and control parameters of the compressor sequencer and individual devices. The display will change depending on whether it is currently showing the status of a control level or a specific compressor. When a control level tile is touched, the main tab will display the screen shown below: fig.50: Main sequencer tab (Control level) 1. Control level information This tile displays the current status, set point, current step and control value of the control level. 2. Level enabled This switch is used to toggle whether or not compressors on the selected level are currently permitted to be sequenced. GEA Refrigeration North America, Inc. E_806550_2 Generated

54 User interface Sequencer 3. Control Parameters This table contains the parameters used during compressor sequencing. The values may be manually changed by touching a row. For more information regarding the specific function of each parameter, refer to Section 3.5, Page Arrow Buttons These buttons may be used to navigate between the displays for each control level. When a device tile is touched, the main tab display will instead appear as shown below. fig.51: Main sequencer tab (Compressor device) 1. Device information This tile displays the Name, current status, set point and control value of the selected device. The color of the tile is dependent on the current status of the compressor. Refer back to Section 2.8.1, Page 51 for a list of the colors and their meanings. 2. Device enabled This switch is used to toggle whether or not the Device is currently permitted to run. 3. Compressor device This section contains the information that was entered when the compressor in question was added to the overview display. Refer back to Section 2.8.1, Page 51 for the functions of each field. The fields are: This panel Brand ID IP address Compressor selection Level Unit ID Device Name 54 GEA Refrigeration North America, Inc. E_806550_2 Generated

55 User interface Sequencer 4. Arrow buttons These buttons may be used to navigate between all compressor devices. Touching the Main tab displayed at the top of the screen will bring up the display corresponding to the most recently selected tile. If no tile has been previously selected in the Overview tab, the panel will bring up the information of the compressor sequencer by default Schedule Tab fig.52: Sequencer Schedule Tab This screen is used to display and modify the control behavior of the compressor sequencer. The main portion of the display contains the control schedule, which is displayed in table format with each compressor device assigned to a column and each row corresponding to a different step. The sequencer supports up to fifty steps. The components of the display are: 1. Current Level This section contains the user defined name for the currently selected level, the target set point and the current level status. 2. Control value This section displays the current control value of the level. 3. Hide/ show timers This button controls whether or not the three initial columns of the schedule table, containing the time delays used while the sequencer is running automatically, are displayed. 4. Level Selection This drop down list is used to select which level is currently displayed. GEA Refrigeration North America, Inc. E_806550_2 Generated

56 User interface Sequencer 5. Schedule table This table displays all steps that will be executed by the compressor sequencer on the currently selected level during normal panel operation. fig.53: Sequencer Schedule Table a. Current step This icon indicates which step is currently being executed by the sequencer. b. Previous timer This column contains the period of time that the sequencer will wait before changing steps once it has been instructed to switch to the previous step. This column will not appear if the Hide Timers button has been clicked. c. Soak timer This column contains the period of time that the sequencer must remain on the current step before determining if it should step ahead to the next step, step back to the previous step, or remain on the current step. This column will not appear if the Hide Timers button has been clicked. d. Next timer This column contains the period of time that the sequencer will wait before changing steps once it has been instructed to switch to the next step. This column will not appear if the Hide Timers button has been clicked. e. Compressor Devices These columns each correspond to an individual compressor on the currently selected level. The contents of each cell dictate what action the device will take during the associated step. The options are: Stop This option will cause the compressor to deactivate during the associated step. Stop With Wait on Drive Timers This option will cause the compressor to stop if the period of time determined by the motor start to start timer has fully elapsed. If the timer has not fully elapsed, the sequencer will wait for the timer to finish before instructing the compressor to stop. Load 56 GEA Refrigeration North America, Inc. E_806550_2 Generated

57 User interface Sequencer This option will cause the compressor to increase its capacity during the associated step. Unload This option will cause the compressor to decrease its capacity during the associated step. Auto This option will cause the compressor to automatically take steps to maintain a specific percent capacity. The compressor will automatically load or unload to maintain the chosen value during the associated step. Hold This option will cause the compressor to remain at a selected capacity during the associated step. Standby 6. Control buttons This option will cause the compressor to monitor all other compressors on the same level. If any monitored compressor enters a shutdown state or cannot be started remotely, the compressor will start. If multiple compressors are in standby mode at the same time, the compressor that is most similar to the failed or inaccessible compressor will start. fig.54: Sequencer Control Buttons These buttons are used to control the operating mode sequencer. The buttons are: a. Auto As long as this button is illuminated, the sequencer will run automatically based on the values entered in the three timer columns. b. Hold As long as this button is illuminated, the sequencer will remain on the currently selected step. c. Next When this button is touched, the sequencer will immediately switch from the current step to the next step below it in the table. If the sequencer is already on the final step, touching this button will have no effect. d. Previous When this button is touched, the sequencer will immediately switch from the current step to the previous step above it in the table. If the sequencer is already on the first step, touching this button will have no effect. GEA Refrigeration North America, Inc. E_806550_2 Generated

58 User interface OmniNet The values in the table display may be modified by touching the appropriate cell of the table. Whenever a cell containing a time is touched, the sub-window below will be displayed. fig.55: Sequencer Timer Control Display The value of the timer may be changed with the number pad, and the units may be changed with the drop down list in the middle. If the Apply to all Timers box is checked, any change made to one timer will affect all timers in the same column. The arrow keys may be used to navigate through the table. Whenever a cell in a condenser device column is touched, the sub window will instead appear as shown below: fig.56: Compressor Device Control Display The state the compressor should enter in the given step may be selected in the central options block. For certain options which require a percentage of the maximum capacity to be specified, the second options block will be enabled. A percentage between 0% and 100 %, incremented in values of 5%, may be selected from this list. 2.9 OmniNet 58 GEA Refrigeration North America, Inc. E_806550_2 Generated

59 User interface OmniNet OmniLink Tab fig.57: OmniLink tab display This screen is used to remotely view and operate other panels on the same network. The main portion of the screen contains a tile display detailing each individual panel connected to the system. Panel types that are compatible with OmniLink include other GEA Omni, GForce and GSC TP panels. The color of a tile corresponds to the current status of the associated panel, as described in the OmniView tile display. The networked panels may be accessed through the four buttons displayed in the bottom right of the screen. The buttons are: 1. Connect This button is enabled as long as at least one of the tiles is selected. Touching it will allow the user to remotely view the display of the selected panel and control it remotely. Only one external panel may be viewed at a time. If multiple tiles are selected, this button will be disabled. While a panel is connected, this button will change to Disconnect, which will return the user to the tile display when clicked. 2. Find Network Panel(s) This button will query the network and locate any other GEA Omni panels. Any panel found in this manner will appear as a new tile in the display and may be viewed or controlled normally. 3. Add Panel This button will bring up a keypad display, which will prompt the user to enter an IP address to manually add a panel to the tile display. 4. Remove Selected Panel This button is enabled as long as at least one of the tiles is selected. Touching it will remove the selected panel or panels from the tile display. GEA Refrigeration North America, Inc. E_806550_2 Generated

60 User interface OmniNet Modbus TCP Tab fig.58: Modbus TCP tab display This screen displays any Modbus devices defined in the custom logic of the panel. All applicable Modbus devices are displayed on the table in the center of the screen. Each row contains the default Name, IP Address and Node Number of the device. The Edit column contains a check box, which is used if the user wishes to modify the connections of the device. Checking a row and touching the Edit Connections button will populate the fields in the upper right hand corner of the screen. The Name field is locked, but the IP Address and Node Number fields may be modified. 60 GEA Refrigeration North America, Inc. E_806550_2 Generated

61 User interface History 2.10 History The History screen is used to display operating data for the panel over time. The historical data of the panel is divided across five tabs, as detailed in the sections below Bottom Menu Navigation The detail and format of the data displayed in the RT-Trend, Chart and Annunciations tabs may be customized using the buttons arranged in the bottom row of the screen. The buttons displayed differ depending on the current tab. While in the RT-Trend tab, the buttons appear in the arrangement shown below. fig.59: The RT Trend button display From left to right, the buttons are: 1. Reset Zoom When viewing data within a graph, the user may zoom in and out to better view the information. This button resets the viewing pane back to the default zoom. Zooming is controlled through pinch and zoom functionality. 2. Show Annunciations This button is used to toggle whether annunciation conditions are displayed in historical graphs displays. It is only enabled as long as the data is being displayed in graph view. When this button is clicked, vertical lines will be added to the display, which correspond to any annunciations that have been triggered during the time period represented on the graph. After the button has been clicked, the text will change to Hide Annunciations. Touching the button a second time will remove the annunciation lines and change the text back to Show Annunciations. 3. Save Data This button is used to save the current range of RT-Trend data displayed in the graph. Clicking it will save a snapshot of the current ten minute interval in table format. These snapshots may be accessed from the annunciation tab, as detailed in Section , Page View - Table This button is used to toggle how the historical data is displayed on screen. It is only enabled in the RT- Trend and Chart tabs. Touching the button will cause the data to be displayed in table format, with rows corresponding to the time increments and columns corresponding to the values that are being monitored. As long as the data is displayed in table mode, the text on the button will instead read View - Graph, which will return the display to the graphical display and change the text back to View - Table when clicked. 5. Edit View This button is used to customize what data is displayed in the RT-Trend, Chart and Annunciations tabs. Touching the button will display the screen shown below. GEA Refrigeration North America, Inc. E_806550_2 Generated

62 User interface History fig.60: Edit view display The screen is divided into three sections which may be used to customize the historical display: 1. Viewing Options The panel always displays forty eight hours worth of historical data. By default, the check box Past 2 Days is checked, which instructs the panel to display historical data from two days previous until the present moment. If this box is unchecked, the drop down list will become enabled and may be used to select a custom end date, which will cause the panel to display two days worth of historical data ending on the selected date. 2. Select Pens These check boxes are used to select which values are tracked on the RT-Trend and historical graphs. 3. Saved Pens Specific groupings of pens may be saved for easy access later through this section. Entering a group name in the upper text field and touching the Save Pens button will add the selection of pens to the list of pen groups shown in the lower box. If no name is entered, the selection will be saved using the current date and time as a name. Individual selections may be checked in the same manner as specific pens. Selections may be deleted from the list of saved pens by checking them and touching the Delete Pens button. The Chart tab displays a slightly different selection of buttons, as shown below. fig.61: Chart tab button display The Reset Zoom, Show Annunciations, View - Table and Edit buttons are identical in functionality to those used in the RT-Trend tab. The Save Data button is not used in this tab, and it is replaced with a date range field which displays the period of time shown in the current view. The field will always contain a forty eight hour period. The 62 GEA Refrigeration North America, Inc. E_806550_2 Generated

63 User interface History arrow buttons to the right and left of the date range are used to change the displayed period. Clicking the left arrow will move the range back by one day, while clicking the right arrow will move it forward by one day. The Annunciations tab displays only the date range and Edit buttons, which retain their functionality from the Chart tab. The Analysis and Report tabs do not contain a row of buttons at the bottom of the screen. For more detailed information regarding the functionality of each tab, refer to the specific sections below. GEA Refrigeration North America, Inc. E_806550_2 Generated

64 User interface History RT-Trend Tab fig.62: RT-Trend tab display (View - Graph) This screen displays real time (RT) panel data. This information can be displayed in either graph or table format. Up to ten different sets of data may be displayed at once. The chosen pens are listed in the legend panel if viewing in graph format and at the top of the columns in grid format. All pens are updated every five seconds while viewing this screen. The total range of time displayed at any given time is ten minutes. fig.63: RT-Trend tab display (View - Table) 64 GEA Refrigeration North America, Inc. E_806550_2 Generated

65 User interface History Chart Tab fig.64: Chart tab display (View - Graph) This screen allows the user to view different sets of I/O information. This information can be displayed in either graph or table format. Up to ten different pieces of data information may be displayed at once. The I/O is listed in the legend panel if viewing in graph format and at the top of the columns in grid format. The total range displayed by default on this screen covers a period of forty eight hours. fig.65: Chart tab display (View - Table) GEA Refrigeration North America, Inc. E_806550_2 Generated

66 User interface History Annunciations Tab The Annunciations tab displays common notifications, warnings and shutdowns that have been triggered on the panel. The figure below displays a sample annunciations control. fig.66: Annunciations tab display 66 GEA Refrigeration North America, Inc. E_806550_2 Generated

67 User interface History 1. Viewable Grid Area From here, the user can view the annunciation table. The table is divided into seven columns as detailed below. Type The graphic displayed here is determined by the type of the triggered annunciations. Red indicates shutdown, yellow indicates warning and blue indicates a notification. Description Displays the name of the annunciation that was triggered. Time The time when the annunciation was either issued or cleared. Parameter The current value of the warning or shutdown set point which triggered the annunciation, where applicable. Action The text displayed here indicates whether the annunciation was issued or cleared. Clear This column will be filled only if the action column displays Cleared. It indicates whether the annunciation was cleared manually or automatically. RT-Trend When a shutdown or warning annunciation is issued, the last fifteen minutes of historical data is recorded. The user may view this information by selecting the picture embedded into the grid s cell. These will not be generated during panel startup. Manual RT-Trend snapshots are also displayed in this format and appear in the table as notifications. GEA Refrigeration North America, Inc. E_806550_2 Generated

68 User interface History Analysis Tab The Analysis tab may be used to quickly identify common annunciations that have been generated by the panel. It lists frequent shutdowns and warnings and the number of times each has occurred over a selected time range. fig.67: Analysis tab display 1. Frequent Shutdowns This section displays the five most common shutdowns that have occurred over the shown time period. The information displayed here indicates the annunciation name and the total number of times it was issued. It also calculates what percentage of the total number of shutdowns the annunciation in question accounts for. 2. Frequent Warnings This section is similar in functionality to the Frequent Shutdowns section, displaying the same information and analysis for warnings. 3. Annunciations Graph This area displays the distribution of shutdowns and warnings across the selected range. For each day, the yellow bar indicates the total number of warnings that occurred and the red bar indicates the total number of shutdowns. 4. Date Range The user can select between any of these preset time periods to change the date range. The Date Range option is also available, which displays the entire period that the panel has been active. 68 GEA Refrigeration North America, Inc. E_806550_2 Generated

69 User interface History Reporting Tab This screen is used to generate custom reports from the panel s historical data. fig.68: Reporting tab display 1. Date Range This is the time period to be included in the report. 2. Data Selection These options are used to select what information should be included in the report. Alternatively, all options may be selected or deselected through the Check All and Uncheck All buttons respectively. Min/Max/Mean This will calculate the min/max and mean for any of the selected I/O. The I/O is selected on the right side of this tool. Shutdown This will display every shutdown that has been issued or cleared. It will list the description, type and date. Warning This will display every warning that has been issued or cleared. It will list the description, type and date. Notification This will display every notification that has been issued or cleared. It will list the description, type and date. 3. Preview Report This will generate a temporary pdf file displaying all of the selected information. GEA Refrigeration North America, Inc. E_806550_2 Generated

70 User interface Documentation 4. Save Report This will save the report to the connected USB drive. 5. Select Pens This section is used to select which specific sets of data will be included in the report. A check mark in the box to the left will indicate that the pen in question is selected Documentation The Documentation screen contains reference materials regarding panel or system functionality. The information displayed here is divided across two tabs, as detailed in the sections below Documents Tab fig.69: Documents tile display This screen is used to display all manuals and supplementary documents associated with the panel arranged in a tile display. Touching a tile will bring up a new screen which will display the associated document. A sample screen is shown below. 70 GEA Refrigeration North America, Inc. E_806550_2 Generated

71 User interface Documentation fig.70: Sample document display 1. Main Display 2. Find This section displays the selected document. The user may scroll through the document using touch and drag functionality. Pinch and zoom functionality is also included. This field may be used to quickly search through the document for a given word or phrase. Touching the field will bring up the keyboard, which will allow the user to enter the desired word or phrase. Touching the magnifying glass icon to the right of the find field will search the document and highlight the first time the chosen text appears. Subsequently touching the magnifying glass will cause the viewer to step through the document, highlighting the next instance of the chosen text, until the end of the document is reached. This search function is not case sensitive. 3. Bookmarks This list displays the major section headings of the document currently being displayed. Touching a bookmark will scroll the document to the chosen section. 4. Zoom This slider is used to change the magnification of the document. The value may be varied from 25% to 400%. 5. Document Information This section shows the page that is currently displayed, the total number of pages in the document and the document title. 6. Close This button exits the document viewer and returns the user to the tile display. GEA Refrigeration North America, Inc. E_806550_2 Generated

72 User interface Documentation Videos Tab fig.71: Videos tile display This screen is used to display all instructional videos associated with the panel arranged in a tile display. Touching a tile will play the associated video. A sample screen is shown below. fig.72: Sample video display This screen is shown whenever a video is playing. The bar on the bottom left indicates the progress of the video. The button in the center is used to pause and play, and the time stamp indicates the progress of the video. The video title is displayed to the right of the time stamp. When the video is finished playing, the screen will automatically close and return to the tile display, but the user may exit the video early by touching the close button. 72 GEA Refrigeration North America, Inc. E_806550_2 Generated

73 2.12 User interface Service Service The service screen contains five tabs that are used to monitor and maintain the panel fig.73: I/O Status Tab I/O Status tab display This tab is used to display the current layout of the I/O system. Additionally, output slices may be forced to specific values, but this functionality may only be accessed by a user with service level or higher permissions. The current status of the I/O system may be viewed through the LED indicators shown in the upper portions of each slice. Slices that do not transmit or receive I/O signals, such as power and end slices are grayed out in the display. Any other slice may be clicked to display a detailed view like the ones shown below. The scopes shown on the outer edges of all the displays illustrate the raw signal received or transmitted by each point. Warning! Caution should be exercised when forcing the value of outputs within the I/O status tab. Forcing a module to an improper value may cause harm to personnel or damage to equipment. If in doubt, contact trained personnel. Hint! If outputs are forced, the module will return to its original value after a thirty minute interval. GEA Refrigeration North America, Inc. E_806550_2 Generated

74 User interface Service fig.74: Sample digital input slice display The above image displays the detailed view of a digital input slice. Each channel that is configured to receive an input signal will display its name to the side of the image. Unassigned channels will be blank. A channel receiving an energized signal will be illuminated green while a de-energized signal will cause the channel to appear gray. fig.75: Sample digital output slice display The above image displays the detailed view of a digital output slice. Each channel that is configured to transmit an output signal will display its name to the side of the image. Unassigned channels will be blank. A channel transmitting an energized signal will be illuminated green while a de-energized signal will cause the channel to appear gray. Output may be controlled automatically through the program or manually by a user with service level or higher permissions. To enable manual control, the switch displayed next to the channel must be touched. While a channel is in manual mode, its state may be changed by touching the LED on the display. fig.76: Compressor motor start notification 74 GEA Refrigeration North America, Inc. E_806550_2 Generated

75 User interface Service Compressor Motor Start outputs may not be switched into manual mode, but they may be pulsed using the button next to the channel. When the button is touched, the warning shown to the right will appear in the upper right hand corner, which will warn the user to verify that the motor is uncoupled from the compressor before the starter is pulsed. Touching the button next to the notification will then energize the motor starter for two seconds. fig.77: Sample analog input slice display The above image displays the detailed view of an analog input slice. Each channel that is configured to receive an input signal will display its name to the side of the image. Unassigned channels will be blank. The current value read at each input will be displayed below the name of the channel. fig.78: Sample analog output slice display The above image displays the detailed view of an analog output slice. Each channel that is configured to transmit an output signal will display its name to the side of the image. Unassigned channels will be blank. Output may be controlled automatically through the program or manually by a user with service level or higher permissions using the drop down list displayed below the name of the channel. The options in the drop down list include Auto and manual output values measured in ma. The manual values range from 0 ma to 20 ma in increments of 4 ma. GEA Refrigeration North America, Inc. E_806550_2 Generated

76 User interface Service Maintenance Tab fig.79: Maintenance tab display This tab is used to display a grid detailing current and upcoming maintenance tasks. The information in this tab may only be modified by a user with service level or higher permissions. A grid is provided for each compressor in the system. If the panel controls multiple compressors, the selected compressor may be changed using the drop down list in the upper right hand corner. Each row of the grid corresponds to a specific maintenance task and each column corresponds to a specific time interval. The column for the current time period is highlighted orange. The selected compressor s run time is displayed directly above the grid. Check boxes populate the grid to indicate whether the task in question has been completed for the given time period. If a check box is not present, the task in question need not be performed for the current interval. The grid itself may not be modified from this view, but it may be updated using the four buttons that appear below the grid. 1. Complete Current Service Interval This button displays the screen shown below, which contains a list of all tasks associated with the given interval. Touching the check box next to a task will mark it as complete. 76 GEA Refrigeration North America, Inc. E_806550_2 Generated

77 User interface Service fig.80: Service task form display The upper left field contains a description of the task in question. The description is entered at startup for standard tasks, and upon creation for custom tasks. The lower left field may be used to enter the procedure taken when the service task is performed. The Save Service Interval button displayed in the bottom right corner will update the main maintenance chart. 2. Service Report 3. Edit Service Tasks This button is used to create or edit custom maintenance tasks for the selected compressor. Touching it will bring up the display shown below. GEA Refrigeration North America, Inc. E_806550_2 Generated

78 User interface Service fig.81: Edit service tasks display The drop down list in the upper left hand corner contains all custom tasks associated with the selected compressor. Selecting a task will populate the remaining fields, which may be modified freely. The fields are: A Service Task Name The text that will be associated with the task in question. This field also determines the name that will be displayed in the drop down list. B Service Type Selection This field is used to specify the type of maintenance that will be needed for the task. The options are: Check Clean Replace Measure Visual Inspection Tighten C Service Unit Selection This field will only be enabled if the Service Type selection is set to Measure. It contains a drop down list which may be used to select the units of the desired measurement. 78 GEA Refrigeration North America, Inc. E_806550_2 Generated

79 User interface Service D Task Note This field may be used to enter details relating to the completion of the selected task. The information entered here will be displayed in the Service Task description section of the main display. E Service Levels This section contains check boxes corresponding to each service interval. Selecting a box will add the custom task to the list of required tasks for the given interval. The Check All option is displayed above the checkboxes, which will add the task to all service intervals. Clicking the option a second time will remove the task from all service intervals. The buttons shown at the bottom of the display are used to add, remove or change custom service tasks. The buttons are: F New Service Task Touching this button will clear all fields and allow the user to enter the details of a new service task. The user will be prompted to select a name for the task, which will automatically be added to the options in the drop down list. G Delete Service Task This button is only enabled when a service task is selected in the drop down list. Touching it will erase the service task currently selected in the drop down list. H Save Service Task This button is only enabled when a service task is selected in the drop down list. Touching it will create or edit the selected service task based on the information entered in the fields. 4. Edit Service Intervals This button is used to modify the amount of time the compressor must run before each service interval comes due. Touching it will bring up the dialog box displayed below. Any of the existing service intervals may be selected using the drop down list on the left. The hours of the interval may be changed by entering the desired interval into the text box to the right and touching the Save Service Change button. If the Ignore Service Notifications option is checked, the panel will not annunciate notifications relating to service intervals. fig.82: Service maintenance display GEA Refrigeration North America, Inc. E_806550_2 Generated

80 User interface Service Activity Log Tab This tab is used to display a log of all events and auditing information for the panel. It is also used to monitor the network status of the panel. fig.83: Activity log tab display 1. General Log This table displays the date and details of any user activity logged in the panel. It also records which user was logged in when each entry was recorded. The data to be displayed is selected through the fields in the upper right corner of the screen. The lower two fields are used to select a date range to display. The upper field contains a drop down list which is used to select the type of data to be displayed. The options are displayed below: All Data Parameter Changed Configuration Changed Settings Changed Commands File Handling Power Network Error Log This option is only available for a user with service level or higher permissions. 80 GEA Refrigeration North America, Inc. E_806550_2 Generated

81 User interface Service 2. Network Status This section contains two tables used to display information regarding networked devices. The network monitored may be either an ethernet network or a serial network. The type of network to monitor is selected using the drop down list above the table. The table on the left displays the name and IP address of each device. Touching an IP address in this list will filter the Devices and only display ones with a matching IP address. The table on the right displays any messages received from a networked device and displays the Time, Message, Address, Length and Value received. The message table may be cleared with the Clear Messages button, or halted temporarily with the Pause Messages button, both found in the bottom right hand corner of the display. A count is also kept of any errors found in packets received from the networked devices. Both types of network may receive a bad packet, and a serial network may also have packets time out. A count for each of these conditions can be found to the left of the buttons, and the Clear Packets button may be used to return the count to zero. GEA Refrigeration North America, Inc. E_806550_2 Generated

82 User interface Service Touch Panel Tab This tab contains a number of functions used for panel maintenance. fig.84: Touch panel tab display fig.85: Wash down icon 1. Wash Down This feature allows the user to clean the screen without accidentally making changes to the panel. When this button is touched, the screen will become blank except for the button displayed above, which will appear in the upper left hand corner of the display. Each time the button is touched, it will move to another location on the screen. The button will cycle through five locations on the screen. Once the button has moved through all of its locations, touching it again will exit the wash down screen and return the user to the main Touch Panel screen. Alternatively, the panel will automatically exit the wash down screen if five minutes have elapsed since the screen was opened. 2. Calibrate Touch Screen When this button is touched, the screen become blank and a crosshair will appear in the upper left hand corner. Tapping the crosshair will cause it to move to a new location. This pattern will continue as the crosshair moves through a total of sixteen locations, ending in the bottom right hand corner of the display. A message box will then prompt the user to choose whether to save the new calibration data. This feature is used if the touch screen is not properly registering the location touched by the user. This feature may only be accessed by a user with Service level or higher permissions. 82 GEA Refrigeration North America, Inc. E_806550_2 Generated

83 3. User interface Service Lamp Test Holding this button will turn on all lamps connected to the panel. This function is used to ensure that all lamps and their associated wiring are working properly. 4. Move Commissioned Files This button is used during startup once the panel has been installed. When this button is pressed, the panel will clear out all erroneous data, warning and log reports generated during the installation process. This button may only be used once, and only a user with Service level or higher permissions may access it. Hint! It is mandatory to press the Move Commissioned Files button once installation of the panel has been completed Logic Tab This tab is only visible if the panel contains custom programming. It displays a real time representation of the logic diagram used for custom controls. fig.86: Logic diagram tab display The user may switch between pages of the diagram using the tabs at the bottom of the display, navigate through the selected page by clicking and dragging along the display and zoom in or out using the slider beneath the page tabs. The node on the blocks displayed in the diagram are color coded based on the type of signal they transmit or receive. An analog node is black, a digital node is blue and a node that may transmit or receive either type is colored orange. The lines between nodes also change to display their current value or state. Connections between digital nodes will either appear as a solid green line for an energized signal, or a dotted red line for a GEA Refrigeration North America, Inc. E_806550_2 Generated

84 User interface File Manager de-energized signal. Connections between analog points will always appear as black lines, but the current value will be displayed above the output node from which the line originates File Manager The file manager screen is used to manipulate the files and applications that are stored on the panel s hard drive. Certain files may be copied to or from a USB memory device or removed entirely as detailed below. All options in this screen may only be accessed be a user with service level or higher permissions Support Files fig.87: Support files tab display This tab is used to export historical or control data from the panel. Data exported from this screen is automatically saved to a USB plugged into the panel, if applicable. The functions that may be accessed from this screen are detailed below. 84 GEA Refrigeration North America, Inc. E_806550_2 Generated

85 User interface File Manager 1. Historical Data This section contains a drop down list which is used to select a range of time from which to export historical data to a USB. The options are: All Data One Week Two Weeks One Month Date Range If the Date Range option is selected, two additional fields will appear which will prompt the user to enter a custom start and end date for the historical data range. Once a date range has been chosen, the Back up Historical Data button displayed to the far right of the section may be clicked, which will save a historian file, of file type.ohist, to the GEA RT folder of the USB. If no GEA RT folder is found, one will be created automatically. The name the file is saved under is generated using the project number and the current date. GEA Refrigeration North America, Inc. E_806550_2 Generated

86 User interface File Manager 2. Panel Data Report Touching the button to the right of this section will generate a pdf document containing important information on all analog and digital I/O associated with the panel. The information in the panel data report includes: AB The Allen Bradley address of the given data point. Modbus Address The Modbus location which the user may read from or write to for the given data point. Description The name associated with the given data point. Designation/ Value The I/O slice and channel associated with the given data point, if applicable. Designation is used for analog data while Value is used for digital data. Range The maximum and minimum value that the given data point may contain. This column is only shown for Analog data. State The reading that will be displayed for the given data point when it is energized or de-energized. This column is only shown for digital data. Scale This column indicates the number of decimal points the chosen data point is configured to read. R/W This column determines whether the user may read or write to the given data point. An R indicates that the data point is read-only, and may be viewed but not modified by the user. R/W indicates that the data point is Read/Write enabled, meaning that the user may view and modify the value freely. W would indicate write-only, but is not used in the panel data report. 3. Control Parameters This section allows the user to save a specific set of parameter values to a USB or the panel. The table to the left of the section displays all.oprms files found on the USB and panel memory which may be used to restore parameters to the panel or delete parameter files from either location. The parameters may be manipulated through the four buttons displayed at the bottom right of the screen. The buttons are: Back up to USB This button is used to save the current values of all custom parameters on the panel to an.oprms file in the GEA RT folder on the USB. If such a folder does not exist, it will be created automatically. The default name of the file is the number of the configuration, but a custom name may be entered into the text field above the button. 86 GEA Refrigeration North America, Inc. E_806550_2 Generated

87 User interface File Manager Back up to Panel This button is used to save the current values of all custom parameters on the panel to an.oprms file in the GEA RT folder on the panel hard drive. If such a folder does not exist, it will be created automatically. The default name of the file is the number of the configuration, but a custom name may be entered into the text field above the button. Restore Parameters This button is only available if a file is selected in the table to the left. Touching it will load the parameters in the selected parameter file to the panel. Delete Parameter This button is only available if a file is selected in the table to the left. Touching it will erase the selected parameter file from the USB or panel Documents Tab fig.88: Documents tab display This tab is used to move supplementary documents to or from the panel, such as manuals or instructional videos. The green bar in the upper right hand corner of the screen represents the current available panel memory. 1. Copying Files to the Panel The list in the upper portion of the screen displays all files available to be copied to the panel s memory. Whenever a USB is plugged into the panel, any files of a panel compatible type type will be displayed. Files that may be copied are.pdf documents and videos of.wmv,.avi and.mp4 formats. Each row in the list contains the name of the file, the file size and a checkbox used to select the file. To copy files, the row corresponding to each desired file must be checked. Alternatively, the table has a Check All button which will allow the user to select every file on the USB. As long as at least one row is checked, the Copy File(s) button shown to the upper right of the table will be enabled. Touching this button will save a copy of all selected files into the panel s memory. GEA Refrigeration North America, Inc. E_806550_2 Generated

88 User interface File Manager 2. Copying or Deleting Files from the Panel The list in the lower portion of the screen displays all files currently saved to the panel s memory. Each row in the list contains the name of the file, the file size and a checkbox used to select the file. Files may be selected from the list using the checkboxes in the rightmost column. Alternatively, the table has a Check All button which will allow the user to select every file on the panel. As long as at least one row is checked, the Delete File(s) and Copy File(s) buttons shown to the upper right of the table will be enabled. Touching the Delete File(s) button will remove all selected files from the panel s memory. Touching the Copy File(s) button will save a copy of each selected file to a USB plugged into the panel. 88 GEA Refrigeration North America, Inc. E_806550_2 Generated

89 User interface File Manager Program Tab fig.89: Program tab display This tab may be used to update or save a back up of the GEA Omni software and the configuration file. Back up data may be saved to either an external USB or to the panel itself. GEA Refrigeration North America, Inc. E_806550_2 Generated

90 User interface File Manager Update/Back up Software The table in the upper portion of the screen, shown below, displays all existing version of the GEA Omni software found on the panel or a connected USB. The table displays the file location and software version number of the file. The buttons displayed to the right of the table are used to handle the programs. fig.90: Update/Back up software display 1. Download Update The panel will retrieve the most recent version of the software from the GEA server and automatically save it to the IPC Download Folder on the panel. 2. Back up to USB A back up of the current software loaded on the panel will be saved to the attached USB. The back up folder will be saved to the GEA RT folder. If no such folder exists, one will be created automatically. The back up folder will be named with the project number. 3. Back up to Panel A back up of the current software loaded on the panel will be saved to the IPC Back up Folder. 4. Restore Program This button is only enabled if a back up file is selected from the table using the check boxes on the far right of each row. Touching it will cause the selected program to be loaded onto the panel. Update/Back up Configuration The table in the lower portion of the screen, shown below, displays all available configuration files currently existing on the panel or an attached USB. The table displays an icon indicating the file location, the project number and the version number of each configuration. The buttons displayed to the right of the table are used to update or back up the configuration. 90 GEA Refrigeration North America, Inc. E_806550_2 Generated

91 User interface File Manager fig.91: Update/Back up configuration display 1. Back up to USB A back up of the current configuration loaded on the panel will be saved to the attached USB. The back up folder will be saved to the GEA RT folder. If no such folder exists, one will be created automatically. The back up folder will be named with the project number. 2. Back up to Panel A back up of the current configuration loaded on the panel will be saved to the panel. 3. Restore Configuration This button is only enabled if a back up file is selected from the table using the check boxes on the far right of each row. Touching it will cause the selected configuration to be loaded onto the panel. 4. Delete Configuration This button is only enabled if a backup file is selected from the table using the check boxes on the far right of each row. Touching it will cause a message box to appear which will prompt the user to confirm the delete. Touching Yes will cause the selected configurations to be removed from the selected location. GEA Refrigeration North America, Inc. E_806550_2 Generated

92 User interface File Manager System Tab fig.92: System tab display This tab is used to back up or restore all files on the panel or set the panel to its factory default settings. 92 GEA Refrigeration North America, Inc. E_806550_2 Generated

93 User interface File Manager Update/Back Up System The table in the upper portion of the screen, shown below, displays all existing system backup data stored on a connected USB. The table displays the project number and date of the file. The buttons displayed to the right of the table are used to create or load a system back up. fig.93: Update/Back up system display 1. Back Up System This button will save all panel data files to an attached USB. The files will be saved in a System Backup folder located in a subfolder of the GEA RT folder corresponding to the project number of the panel. If any or all of these folders are not present, they will be created automatically. 2. Restore System This button is only available if a system back up is selected from the table using the check boxes in the far right column. Touching it will cause the system to replace its current data files with those stored in the selected back up. Hint! Restoring the system may cause data loss. Ensure that a system backup has been saved prior to restoring the system. Factory Default Files The table in the lower portion of the screen, shown below, is used to restore the panel to its factory default settings. The system will search an attached USB for any factory default files, containing the extension.ofds, and will display any such files in the table. fig.94: Factory default files display The user may select a factory default file using the check boxes in the rightmost column of the table. As long as at least one file is selected, the Upload Factory Default Files button will be enabled. Touching it will load the chosen defaults in place of the corresponding files on the panel. GEA Refrigeration North America, Inc. E_806550_2 Generated

94 User interface File Manager Apps Tab fig.95: Apps tab display This tab allows the user to download GEA applications to an attached USB so they may be installed on a separate PC. Each button will copy the installer for the chosen application to the USB. The upper button corresponds to the GEA OmniLink (Section 2.9, Page 58), and the lower button corresponds to the GEA OmniHistorian (Section 2.10, Page 61). 94 GEA Refrigeration North America, Inc. E_806550_2 Generated

95 User interface Configuration 2.14 Configuration The Configuration screen is used to modify system options for either the panel as a whole or individual devices or sensors. If a change will invalidate a portion of the associated drawings, a notification will be triggered reminding the user to contact GEA for revised drawings System Tab fig.96: System tab display This tab contains a tile display used to select which set of options the user wishes to modify. The first tile corresponds to the configuration options of the panel as a whole and will display the project number and customer name. Subsequent tiles correspond to individual devices controlled from the panel. When a tile is clicked, it will bring up a scrollable screen containing all of the configurable options for the given system or device. Only a user with admin level permissions may change these options, and only while no compressors are running. For more information on individual configuration options, refer to Section 3.8, Page 183. GEA Refrigeration North America, Inc. E_806550_2 Generated

96 User interface Configuration Sensors Tab fig.97: Sensors tab display This tab is used to adjust the range of sensors monitored by the panel. The table is divided into nine columns. The leftmost column contains an icon that indicates whether the chosen point is an input or output. A green arrow pointing to the right indicates that the point is an input, and a blue arrow pointing to the left indicates that the point is an output. The remaining channels are detailed below. 1. Channel The text in this column indicates the slice number and channel that the chosen point occupies in the I/O system. 2. Description 3. Min This column contains the name of the chosen point. This column contains the lowest allowable value for the chosen point during normal panel operation. 4. Measured This column contains the calibrated value read from or transmitted to the chosen point. 5. Max This column contains the highest allowable value for the chosen point during normal panel operation. 6. Raw Scaled This column contains the Raw Signal received by associated sensor scaled between the selected minimum and maximum values. 7. Offset This column contains the value that is added to the reading displayed in the Raw Scaled column to obtain the measured value for the sensor. 8. Raw Signal This column contains the unscaled value received by the sensor. 96 GEA Refrigeration North America, Inc. E_806550_2 Generated

97 User interface Panel Settings Touching a cell in the Min and Max columns will bring up a sub screen which will allow the user to change the range measured by the associated sensor. The Measured column is used during the calibration process for the sensor. For more information on calibrating specific types of sensors, refer to Chapter 5, Page Panel Settings The Panel Settings screen is used to customize the appearance and display of the GEA Omni panel. The options are divided across four tabs which are detailed below Localization Tab fig.98: Localization tab display This tab contains options that may be changed to make the panel more convenient to use based on panel location. There are seven sections as detailed below. 1. Language This section contains a single drop down list containing all supported languages. A change in this field will trigger a corresponding change to all of the text within the panel. 2. Units This section contains three drop down lists, one each for pressure, temperature and length. The selections in these fields will change the units displayed after any value of the appropriate type. 3. Date and Time This section contains two drop down boxes which may be used to change the current date and time displayed in the bottom right hand corner of the panel. The drop down box on the left is used to input the current date and the drop down box on the right is used to enter the current time. GEA Refrigeration North America, Inc. E_806550_2 Generated

98 User interface Panel Settings 4. Date and Time Format This section contains two drop down lists which may be used to select how the date and time is displayed on the panel. The list on the left is used to select whether the date is displayed mm/dd/yyyy, dd/mm/yyyy or yyyy/mm/dd, and the list on the right is used to select whether the time is displayed in twelve or twenty-four hour format. 5. Theme This section contains a single drop down list which is used to select the color display for the panel. The default choice, Indoor/Dark displays white text on a dark gray background, while Outdoor/Light displays black text on a white background. 6. Screen Saver Timeout This section contains a single drop down list which is used to select the amount of time that the panel may remain idle before switching to the screen saver. The options are 1, 5, 10, 15 and 20 minutes. This option may only be changed by a user with service level or higher permissions. 7. Historical Trend Interval This section contains a single drop down list which is used to select for what amount of time the panel will wait before adding a new set of data to the historical display. The options are 1, 2, 5 and 10 minutes. This option may only be changed by a user with service level or higher permissions Users Tab fig.99: Users tab display This tab displays information regarding all users that may log into the panel. It also contains functionality to add or remove users. 98 GEA Refrigeration North America, Inc. E_806550_2 Generated

99 User interface Panel Settings 1. Create New User The fields on the far right of the screen may be used to enter information for a new user. Each user will be given a unique User Name and may be assigned a unique Address and Password. The access level selected will be either Service or Operator. Admin access level may not be created. If the user level is set to Operator, three additional fields will be displayed which are used to select to what degree the user may control the system. Service users automatically have full access to all three of these options, so these fields will not display if the access level is set to Service. Start/ Stop Access This field contains a drop down list which is used to select whether the user has permission to start or stop the compressor. It may be set to No Access, Stop Access, Start and Stop or Start and Stop with Capacity Control Access. The default option is Start and Stop with Capacity Control Access. Set Point Access This field contains a switch which is used to toggle whether or not the user is permitted to access or change the control set points of the panel. By default, this option is set to true. Clear Motor Start Timers This field contains a switch which is used to toggle whether or not the user is permitted to reset the built in delay timers before the motor starts. By default, this option is set to false. Touching the Save User button below the fields will create a user using the information in the fields and add it to the table of current users. Touching the Save User button below the fields will create a user using the information in the fields and add it to the table of current users. 2. Current Users This section contains a table displaying all users that may log in to the panel. By default, there are two users: Service and Operator, though any custom users added in the manner described above will be displayed in the table as well. The table contains three columns; the leftmost containing the name of the user, the middle containing the access level and the rightmost containing a checkbox which is used to select a user to be edited or removed. The rows corresponding to the two default users do not contain the checkbox in the leftmost column because they may not be modified or removed. When the checkbox corresponding to a user is selected, the fields used to create a user will automatically be filled in with the corresponding information. This will also enable the Save User and Delete User buttons. Any changes made to a custom user may be confirmed by touching the Save User button. Touching the Delete User button will remove the selected user from the table entirely. Only custom users may be deleted or have their access level modified. 3. User Timeout This section is used to select whether the panel will automatically log a user out after a period of inactivity. User timeout is not set by default, and must be enabled with the Timeout Enabled switch shown to the right of the screen. Toggling the switch on will enable the field shown below it. User Access Timeout This field contains a drop down list which is used to select the amount of time the panel must remain idle before the current user is logged out. GEA Refrigeration North America, Inc. E_806550_2 Generated

100 User interface Panel Settings fig.100: Network Tab Network tab display This tab is used to display the status of the panel s network connections. It also allows the user to modify certain settings. These options may only be modified by a user with service level or higher permissions. 1. Customer Network This section displays the current network connection, if applicable. The switch displayed in this section is used to select whether DHCP, Dynamic Host Configuration Protocol, is enabled. If DHCP is enabled, the panel will automatically search for a network connection and will fill in the IP Address, Subnet Mask, Gateway and DNS Server fields without user input. If DCHP is disabled, the values in these fields must be entered manually. If the panel successfully connects to the chosen network, the title of this section will display Customer Network Connected. Otherwise, it will display Customer Network Disconnected. Hint! The IP Address Range through is reserved for the I/O Ethernet network Setup. To ensure the functionality of both networks, do not use this range for the customer LAN Connection. 2. I/O Network This section is used to display the IP Address and MAC Address of the panel s I/O network coupler, if applicable. These values may not be modified and are only visible for users with access level of Service or higher. If the panel successfully connects to an appropriate network location, the title of this section will display I/O Network Connected. Otherwise, it will display I/O Network Disconnected. 3. VNC Server Settings This section is used to select whether a user may remotely log into the panel using VNC and whether a password is required to do so. This section contains two switches. The switch on the left toggles whether VNC client access is enabled for the panel and the switch on the right toggles whether a password is required. If a password is required, it may be changed by typing a new password into the Password and Confirm Password fields and touching the Change Password button below. 100 GEA Refrigeration North America, Inc. E_806550_2 Generated

101 User interface Panel Settings 4. Serial Port Settings This section allows the user to modify the serial communication settings of the panel. The available protocols are Motor Starter Communication, Modbus RTU and Allen Bradley DF1. Five additional drop down lists are provided which allow the user to select the Baud Rate, Parity, Data Bit, Stop Bit and Node Number for the communication. Hint! The Motor Starter Communication protocol is only available if it has been enabled in the configuration. GEA Refrigeration North America, Inc. E_806550_2 Generated

102 User interface Panel Settings Tab fig.101: tab display This tab is used to configure the panel settings. A user must be of an access level of service or higher to make changes to this section. All fields on this tab will be disabled if the Panel Enable switch in upper portion of the screen is toggled off. The fields below the switch are used to select the Address, Password, Incoming Mail Server (POP3) and Outgoing Mail Server (SMTP) for the panel. A port number must be selected for the incoming and outgoing servers, and a checkbox is used to indicate whether the chosen ports are on a Secure Socket Layer (SSL). The Test Server Connection button may be used to ensure that the chosen connections are working properly. The lower table contains a list of all users who will receive or text message notifications from the panel. The table is divided into three columns. The leftmost column contains an icon to indicate which type of notification the corresponding recipient is to receive. An envelope icon indicates an notification, while a phone icon indicates a text message notification. The middle column contains the Address of the recipient, and the rightmost column contains a checkbox that allows the recipient to be selected. To add a recipient to the list, an address must be entered into the text box to the right of the table. The two checkboxes below the text box are used to select whether certain options are enabled for the recipient. If the new recipient is to receive history files from the panel, the box shown to the left must be checked. If the recipient is to receive notifications as text messages instead of s, the checkbox shown to the right must be checked. After a recipient is selected in the table, at test message may be sent using the Send Test Message button in the bottom right hand corner of the screen. Additionally, as long as one or more recipients are selected, the Delete Recipient Address button will be enabled, which will permanently remove the selected recipients from the table. 102 GEA Refrigeration North America, Inc. E_806550_2 Generated

103 User interface Panel Info 2.16 Panel Info fig.102: Panel info tab display The Panel Info screen displays important information taken from the Configuration screen. This includes the project number, location, configuration version number and program version numbers. Additionally, this screen contains the Name, Location, Phone number and Address to be used for product service and support. The information in these fields may only be modified by a user with service level or higher permissions. GEA Refrigeration North America, Inc. E_806550_2 Generated

104 Control Compressor Control Parameters 3 CONTROL 3.1 Compressor Control Parameters Control parameters are displayed on the main Omni Compressor screen detailed in Section 2.5.1, Page 31. Below is a list of all control parameters and a brief description of their function Capacity Control The panel supports three sets of capacity parameters. For a user with Service level or higher permissions, all three sets of capacity control parameters will be visible. For a user with Operator level permissions, the set displayed is dependent on the Control Mode parameter detailed in the Control group below, and the other two will be hidden. Parameter Units Minimum Maximum Default Name Control Signal Set Point Dead Band Proportional Band Automatic Start/ Stop Automatic Start Automatic Start Offset Text Entry See Description Selection See Description Dependent on Control Signal. Refer to Panel Data Report Dependent on Control Signal. Refer to Panel Data Report Dependent on Control Signal. Refer to Panel Data Report Selection See Description Dependent on Control Signal. Refer to Panel Data Report Dependent on Control Signal. Refer to Panel Data Report Automatic Start Delay Seconds 5 s 1800 s 5 s Automatic Stop Automatic Stop Offset Dependent on Control Signal. Refer to Panel Data Report Dependent on Control Signal. Refer to Panel Data Report Automatic Stop Delay Seconds 5 s 1800 s 5 s Load Pulse Period Seconds 1 s 20 s 4 s Unload Pulse Period Seconds 1 s 20 s 4 s Minimum Capacity Slide Position Percent 0 % See Description 0 % 104 GEA Refrigeration North America, Inc. E_806550_2 Generated

105 Parameter Maximum Capacity Slide Position Control Compressor Control Parameters Units Minimum Maximum Default Percent See Description 100 % 100 % Ramp Rate Per Minute Dependent on Control Signal. Refer to Panel Data Report 1. Name This parameter contains the name used to identify the specific set of capacity control parameters. The user may modify it by entering a desired text string into this parameter. 2. Control Signal This parameter is used to set which input will be monitored to control the capacity slide valve of the compressor. The options are: Suction Pressure Suction Pressure as Temperature Inlet Temperature Outlet Temperature Discharge Pressure Discharge Pressure as Temperature Remote Capacity Slide Remote Temperature Remote Pressure Hint! If this parameter is changed to an option with a different unit type, the Set point, Dead Band and Proportional Band will be reset to their default values. 3. Set Point This parameter is used to choose the desired value at which the compressor will attempt to maintain the control signal. The user may change this parameter by entering a new value with the keypad. The maximum value, minimum value and units of the parameter are dependent on the chosen control signal: Pressure Measured in the panel pressure units as selected in the Panel Settings screen. Temperature Measured in the panel temperature units as selected in the Panel Settings screen. Remote Capacity Slide Measured in percent. GEA Refrigeration North America, Inc. E_806550_2 Generated

106 Control Compressor Control Parameters 4. Dead Band This parameter is used to define a range above and below the set point within which no capacity control adjustments will be made. This functionality is illustrated in the Figure 113, Page 200 and Figure 114, Page 201. The maximum value, minimum value and units of the parameter are dependent on the chosen control signal: Pressure Measured in the panel pressure units as selected in the Panel Settings screen. Temperature Measured in the panel temperature units as selected in the Panel Settings screen. Remote Capacity Slide Measured in percent. 5. Proportional Band This parameter is used to define a range above and below the set point within which the width of the capacity control pulses is reduced to avoid overshooting or undershooting the set point. This functionality is illustrated in the Figure 113, Page 200 and Figure 114, Page 201. The maximum value, minimum value and units of the parameter are dependent on the chosen control signal: Pressure Measured in the panel pressure units as selected in the Panel Settings screen. Temperature Measured in the panel temperature units as selected in the Panel Settings screen. Remote Capacity Slide Measured in percent. 6. Automatic Start Stop This parameter is used to select whether the panel is permitted to run and stop the compressor automatically to maintain the control signal. While the parameter is not set to Disabled, an A will appear in the upper left hand corner of the Start button. The options are: Disabled Offsets Set points 7. Automatic Start This parameter is used to select the control signal value at which the compressor will attempt to start. This parameter is only visible if the Automatic Start Stop parameter is set to Set points. The maximum value, minimum value and units of the parameter are dependent on the chosen Control Signal: Pressure Measured in the panel pressure units as selected in the Panel Settings screen. Temperature Measured in the panel temperature units as selected in the Panel Settings screen. Remote Capacity Slide Measured in percent. 106 GEA Refrigeration North America, Inc. E_806550_2 Generated

107 Control Compressor Control Parameters 8. Automatic Start Offset This parameter is used to select an offset value added to the value of the Set point. If the control signal exceeds this calculated value, the compressor will attempt to start. The parameter will only be visible if the Automatic Start Stop parameter is set to Offsets. The maximum value, minimum value and units of the parameter are dependent on the chosen control signal: Pressure Measured in the panel pressure units as selected in the Panel Settings screen. Temperature Measured in the panel temperature units as selected in the Panel Settings screen. Remote Capacity Slide Measured in percent. 9. Automatic Start Delay This parameter is used to select the period of time that must elapse after the conditions to automatically start the compressor are met before it will be permitted to start. In most circumstances the control signal must exceed the value of the Automatic Start parameter in order for an automatic start to occur. The exception is when the control signal is set to Discharge Pressure, where the value must instead remain below the Automatic Start parameter. This parameter is only visible if the Automatic Start Stop parameter is not set to Disabled. The value is measured in seconds. 10. Automatic Stop This parameter is used to select the control signal value at which the compressor will stop. This parameter is only visible if the Automatic Start Stop parameter is not set to Disabled. The maximum value, minimum value and units of the parameter are dependent on the chosen control signal: Pressure Measured in the panel pressure units as selected in the Panel Settings screen. Temperature Measured in the panel temperature units as selected in the Panel Settings screen. Remote Capacity Slide Measured in percent. 11. Automatic Stop Offset This parameter is used to select an offset value added to the value of the Set point. If the control signal falls below this calculated value, the compressor will stop. The parameter will only be visible if the Automatic Start Stop parameter is set to Offsets. The maximum value, minimum value and units of the parameter are dependent on the chosen control signal: Pressure Measured in the panel pressure units as selected in the Panel Settings screen. Temperature Measured in the panel temperature units as selected in the Panel Settings screen. Remote Capacity Slide Measured in percent. GEA Refrigeration North America, Inc. E_806550_2 Generated

108 Control Compressor Control Parameters 12. Automatic Stop Delay This parameter is used to select the period of time that must elapse after the conditions to automatically stop the compressor are met before it will be permitted to stop. In most circumstances the control signal must remain below the value of the Automatic Stop parameter. The exception is when the control signal is set to Discharge Pressure, where the value must instead exceed the Automatic Stop parameter. This parameter is only visible if the Automatic Start Stop parameter is not set to Disnabled. The value is measured in seconds. 13. Load Pulse Period This parameter is used to select the total duration of an individual pulse to the load solenoid. The proximity of the control signal value to the set point determines for which portion of the period the compressor will be loading. For further information, refer to Section 3.11, Page 199. The value is measured in seconds. 14. Unload Pulse Period This parameter is used to select the total duration of an individual pulse to the unload solenoid. The proximity of the control signal value to the set point determines for which portion of the period the compressor will be unloading. For further information, refer to Section 3.11, Page 199. The value is measured in seconds. 15. Minimum Capacity Slide Position This parameter is used to select the lowest allowable value for the capacity slide valve during normal operation. If the current reading on the capacity slide drops below this value, the compressor will load until the selected minimum position is reached unless an outside limitation is active. The maximum value of this parameter is the current value of the Maximum Capacity Slide Position parameter. The parameter may only be manually changed from the panel while it is operating in Local mode. If the panel is operating in remote mode, changes to this value must be made through the sequence control. The value is measured in percent. 16. Maximum Capacity Slide Position This parameter is used to select the highest allowable value for the capacity slide valve during normal operation. If the current reading on the capacity slide rises above this value, the compressor will unload until the selected maximum position is reached unless an outside limitation is active. The minimum value of this parameter is the current value of the Minimum Capacity Slide Position parameter. The value is measured in percent. 17. Ramp Rate per Minute This parameter is used to select how quickly the set point approaches its chosen value after startup. This is to ensure that the compressor will not attempt to load up to set point too quickly upon starting. The value indicates the change per minute, and the maximum value, minimum value and units of the parameter are dependent on the chosen control signal: Pressure Measured in the panel pressure units as selected in the Panel Settings screen. Temperature Measured in the panel temperature units as selected in the Panel Settings screen. Remote Capacity Slide Measured in percent. 108 GEA Refrigeration North America, Inc. E_806550_2 Generated

109 Control Compressor Control Parameters Control Parameter Units Minimum Maximum Default Control Mode Control Mode Select By Digital Input Set Point Location Remote Set Point Units Remote Control Value Units Maximum Capacity Slide to Allow Start Override Maximum Capacity Slide to Allow Start Capacity Slide Failed to Unload Shutdown Timer Selection See Description Selection See Description Selection See Description Selection See Description Selection See Description Percent 0 % 100 % 70 % Percent 0 % 100 % 5 % Seconds 35 s 600 s 180 s Capacity Control Delay Seconds 0 s 120 s 15 s Load Limitation Delay Seconds 15 s 300 s 15 s Sequencer Overwrite Local Capacity Parameters Selection See Description Zero Load Shutdown Timer Seconds 0 s 600 s 120 s Swing Compressor Control Selection See Description Suction Bypass Timer Seconds 0 s 60 s 30 s Fast Unload Timer Seconds 1 s 60 s 3 s External Capacity Mode Remote Control Interface Suction Check Valve Close Assist Pulse Timer Selection See Description Selection See Description Seconds 5 s 120 s 10 s GEA Refrigeration North America, Inc. E_806550_2 Generated

110 Control Compressor Control Parameters Parameter Units Minimum Maximum Default Control Mode After Shutdown Sequencer Control Selection See Description Selection See Description 1. Control Mode This parameter is used to select which set of Capacity Control parameters is used by the panel. Whichever set of parameters is selected here will be the visible set shown in the Capacity Control section above. This parameter will only be visible if Control Mode Select By Digital Input is set to Disabled. The options are: Capacity Control 1 Capacity Control 2 Capacity Control 3 2. Control Mode Select By Digital Input This parameter is used to select whether the capacity control mode is selected using a parameter or a Digital Input point. If a Digital Input point is used, the compressor will be limited to Capacity Control 1 on a de-energized signal, and Capacity Control 2 on an energized signal. The parameter will only be visible if the Set Point Selection Digital Input option is enabled in the panel configuration. The options are: Enabled Disabled 3. Set Point Location This parameter is used to select whether the capacity control set point is taken from the selected set of Capacity Control parameters or from a Remote device. The options are: Local Remote 4. Remote Set Point Units This parameter is used to select the units of measurement that will be used for remote set point control. The parameter will only be visible if the Remote Set Point option is enabled in the panel configuration. The options are: Pressure Temperature Slide Valve 110 GEA Refrigeration North America, Inc. E_806550_2 Generated

111 Control Compressor Control Parameters 5. Remote Control Value Units This parameter is used to select the units that will be used to express the value measured at the Remote Control Value analog input. The options are: Pressure Temperature Hint! The selected Control Signal must match this setting. 6. Maximum Capacity Slide To Allow Start Override For GEA Grasso Small and Medium compressors, if the compressor capacity slide position remains above the Maximum Capacity Slide To Allow Start parameter during the period of time dictated by the Capacity Slide Failed to Unload Shutdown Timer, the panel will compare the slide position to this value. If the capacity slide position is greater than this value for the duration of the Capacity Slide Failed to Unload Shutdown Timer, a shutdown will be issued. The value is measured in percent. 7. Maximum Capacity Slide To Allow Start This parameter is used to select the maximum allowable position of the capacity slide when the compressor is instructed to start. If the capacity slide position is above this parameter when a start signal is received, the compressor will unload until the slide position has dropped below the parameter before allowing the compressor to start. The compressor will also unload to this position after the compressor is stopped. The value is measured in percent. 8. Capacity Slide Failed to Unload Shutdown Timer This parameter is used to select the amount of time the panel will wait for the compressor to unload, either before starting or after stopping, before a Capacity Slide Failed to Unload Shutdown will be annunciated. The value is measured in seconds. 9. Capacity Control Delay This parameter is used to select the period of time that will elapse between the compressor starting and capacity control being enabled. The value is measured in seconds. 10. Load Limitation Delay This parameter is used to select the period of time for which the compressor will wait after a limitation condition is cleared before beginning to load. The value is measured in seconds. 11. Sequencer Overwrite Local Capacity Parameters This parameter is used to select whether the local capacity control parameters may be overwritten by parameters from an external sequencer. 12. Zero Load Shutdown Timer This parameter is used to select the period of time that the capacity slide position may remain at the zero load percentage before a shutdown condition will be annunciated. The value is measured in seconds. 13. Swing Compressor Control This parameter is used to select the current function of the compressor. The parameter will only be visible if the compressor application is set to Swing in the configuration. The options are: Low Stage High Stage GEA Refrigeration North America, Inc. E_806550_2 Generated

112 Control Compressor Control Parameters 14. Suction Bypass Timer This parameter is used to select the amount of time that the suction bypass solenoid will remain energized after the compressor has started. The value is measured in seconds. 15. Fast Unload Running Timer This parameter is used to select the amount of time for which the compressor will be permitted to run while the compressor is in fast unload mode. The parameter will only be visible if the Fast Unload option is enabled in the configuration. The value is measured in seconds. 16. External Capacity Mode This parameter is used to determines if the external capacity exerts direct control over the load/unload solenoids or simply communicates the need for increased or decreased capacity to the compressor. The options are: Direct Pulse Control Indirect Pulse Control 17. Remote Control Mode Interface This parameter is used to select the method of communication used between the panel and any remote capacity control devices. The options are: Network Hard Wired 18. Suction Check Valve Close Assist Pulse Timer This parameter is used to select the length of the control pulses used to operate close assist feature of the motorized suction check valve. The parameter will only be visible if the Suction Check Valve Close Assist option in the compressor configuration is set to Normally Open Pulsed or Normally Closed Pulsed. The value is measured in seconds. 19. Control Mode After Shutdown This parameter is used to select whether the compressor will be permitted to resume operation in remote mode following a shutdown condition. The options are: Enabled Disabled 20. Sequencer Control This parameter is used to select the type of control panel which will sequence this compressor. The options are: GEA Omni This option indicates that the compressor will be sequenced by another GEA Omni panel. GEA FES Legacy Panel This option indicates that the compressor will be sequenced by an older generation of GEA control panel. 112 GEA Refrigeration North America, Inc. E_806550_2 Generated

113 Control Compressor Control Parameters Variable Vi Parameter Units Minimum Maximum Default Vi Operating Mode Selection See Description Vi Dead Band Percent 2.0 % % 2.0 % Vi Load-Unload Timer Seconds 1 s 10 s 1 s Manual Vi Control Vi Setting Numeric Entry See Description Volume Slide Adjustment Factor Percent -100 % 100 % 0 % Low-Medium Vi Transfer Point Vi 0.0 Vi 10.0 Vi 0.0 Vi Low-Medium Vi Transfer Dead Band Vi 0.0 Vi 10.0 Vi 0.0 Vi Medium-High Vi Transfer Point Vi 0.0 Vi 10.0 Vi 0.0 Vi Medium-High Vi Transfer Dead Band Stepped Manual Vi Control Setting Vi 0.0 Vi 10.0 Vi 0.0 Vi Selection See Description 1. Vi Operating Mode This parameter is used to select the means by which the compressor will control its Vi. This parameter will only be visible if the Vi Mode option in the Compressor Configuration is set to Continuous Variable. The options are: Auto In this mode, the compressor will adjust its Vi based on a calculated optimal Vi position. Manual In this mode, the compressor will adjust its Vi based on a user selected value. 2. Vi Deadband This parameter is used to define a range above and below the optimum Vi point or the manual Vi setting within which no Vi adjustments will be made. This parameter will only be visible if the Vi Mode option in the Compressor Configuration is set to Continuous Variable. The value is measure in either percent or as a unit less value depending on the type of compressor. 3. Vi Load-Unload Timer This parameter is used to select the period of time that will elapse between the start of pulse signals while the Vi slide is loading or unloading and the Vi slide position is within the range defined by a set proportional band. The proximity of the Vi slide to the optimum position determines for which portion of the period the compressor will be loading. The value is measured in seconds. GEA Refrigeration North America, Inc. E_806550_2 Generated

114 Control Compressor Control Parameters 4. Manual Control Vi Setting This parameter is used to select the desired Vi value during manual operation. This parameter will only be visible if the Vi Mode option in the Compressor Configuration is set to Continuous Variable and the Vi Operation Mode parameter is set to Manual. The value is unit less. 5. Volume Slide Adjustment Factor This parameter is used to select the amount that the volume slide must deviate from the point where the optimum position was last calculated before the calculations will be reevaluated. This parameter will only be visible if the Vi Mode option in the compressor configuration is set to Continuous Variable and if the compressor brand is set to Vilter. The value is measure in percent. 6. Low-Medium Vi Transfer Point This parameter is used to select the point where the current Vi step will switch between Low and Medium. The parameter will only be visible if the Vi Mode is set to Step Variable in the compressor configuration. The value is measured in Vi. 7. Low-Medium Vi Transfer Dead Band This parameter is used to select the range above and below the Low-Medium Transfer Point within which no Vi step changes will occur. If the Vi reading rises above this range while the current step is Low the Vi step will transfer to Medium, and if it falls below the range while the current step is Medium the Vi step will transfer to Low. The value is measured in Vi. 8. Medium-High Vi Transfer Point This parameter is used to select the point where the current Vi step will switch between Medium and High. The parameter will only be visible if the Vi Mode is set to Step Variable in the compressor configuration. The value is measured in Vi. 9. Medium-High Vi Transfer Dead Band This parameter is used to select the range above and below the Medium-High Transfer Point within which no Vi step changes will occur. If the Vi reading rises above this range while the current step is Medium the Vi step will transfer to High, and if it falls below the range while the current step is High the Vi step will transfer to Medium. The value is measured in Vi. 10. Stepped Manual Vi Control Setting This parameter is used to manually set the current Vi Setting for the compressor. The parameter will only be visible if the Vi Mode is set to Step Variable in the compressor configuration. The options are: Low Medium High Motor Parameter Units Minimum Maximum Default Accumulated Runtime Hours Hours 0.0 h 1.0 x 10 9 h 0.0 h Motor Start to Start Delay Minutes 0.0 min min 20.0 min 114 GEA Refrigeration North America, Inc. E_806550_2 Generated

115 Control Compressor Control Parameters Parameter Units Minimum Maximum Default Motor Stop to Start Delay Seconds 1 s 60 s 5 s Motor Bypass Configuration Motor Bypass Configuration By Digital Input Selection See Description Selection See Description 1. Accumulated Runtime Hours This parameter displays the total amount of time the motor has been in the run state. It may also be changed manually. The value is measured in hours. 2. Motor Start To Start Delay This parameter is used to select the period of time that must elapse after the motor starts before it will be permitted to start again. The value is measured in minutes. 3. Motor Stop To Start Delay This parameter is used to select the period of time that must elapse after the motor has stopped before it will be permitted to start again. The value is measured in seconds. 4. Motor Bypass Configuration This parameter is used to select the whether the motor will operate as a variable speed or fixed speed motor while it is operating in bypass mode. The parameter is only visible if the motor type is set to Variable Speed with Bypass in the configuration and the Motor Bypass Configuration by Digital Input parameter is currently set to Disabled. The options are: Fixed Speed Variable Speed 5. Motor Bypass Configuration By Digital Input This parameter is used to select whether the operating mode of the motor bypass is controlled by a digital input. The parameter is only visible if the motor type is set to Variable Speed with Bypass in the configuration. The options are: Disabled Enabled Motor Power Parameter Units Minimum Maximum Default kw Demand Metering Ratio kw 0.0 kw KW 0.0 kw kwh Input Pulse Weight kwh Estimated Usage kwh 0.0 kwh 10 x 10 9 kwh 0.0 kwh GEA Refrigeration North America, Inc. E_806550_2 Generated

116 Control Compressor Control Parameters 1. kw Demand Metering Ratio This parameter is used to display the estimated power demand of the motor while it is running at full speed. With a 500:5 CT or a 500 A reading with a 20mA input, the value is equal to: fig.103: Estimated power demand, calculation formula P Estimated power demand U Voltage I Current cos φ Power factor The value is measured in kw. 2. kwh Input Pulse Weight 3. kwh Estimated Usage This parameter is used to display the current estimate for the total amount of power used by the panel. The parameter will only be visible ifthe Power Calculation option in the configuration is set to something other than None. The value is measured in kwh Motor Current Parameter Units Minimum Maximum Default Motor Current Nominal FLA Amps 1A A see description Seconds 0s 60 s 30 s High Motor Current Shutdown Amps 1A A 280 A High Motor Current Shutdown Timer Seconds 1s 10 s 10 s Amps 0A 300 A 20 A Illegal Compressor Motor Current Shutdown Percent 5% 20 % 15 % Low Motor Current Run Delay Seconds 0s 30 s 0s High Motor Current Shutdown Run Delay High Motor Current Warning Offset 116 GEA Refrigeration North America, Inc. E_806550_2 Generated

117 Control Compressor Control Parameters Parameter Units Minimum Maximum Default Low Motor Current Shutdown Amps 0 A 235 A 10 A Low Motor Current Shutdown Timer Seconds 0 s 30 s 8 s Limitation Motor Current Load Inhibit Offset Limitation Motor Current Force Unload Offset Amps 0 A 300 A 15 A Amps 0 A 300 A 10 A 1. Motor Current Nominal FLA This parameter is used to select the Full Load Amps (FLA) value of the motor. This value may be found on the nameplate of the motor. The value is measured in amps. 2. High Motor Current Shutdown Run Delay This parameter is used to select a period of time after the compressor is started during which the high motor current safeties will be ignored. The value is measured in seconds. 3. High Motor Current Shutdown This parameter is used to select the motor current above which a High Motor Current Shutdown will be annunciated. The value is measured in amps. 4. High Motor Current Shutdown Timer This parameter is used to select the amount of time that the motor current must exceed the High Motor Current Shutdown value before a High Motor Current Shutdown will be annunciated. The value is measured in seconds. 5. High Motor Current Warning Offset This parameter is used to set an offset value subtracted from the value of the High Motor Current Shutdown parameter. If the motor current exceeds this calculated value, a High Motor Current Warning will be annunciated. The value is measured in amps. 6. Illegal Compressor Motor Current Shutdown This parameter is used to select the maximum percentage of the FLA that motor current may reach while the motor starter is not energized. If this value is exceeded while the motor starter is still de-energized, an Illegal Compressor Motor Current Shutdown will be annunciated. The value is measured in percent. 7. Low Motor Current Run Delay This parameter is used to select a period of time after the compressor is started during which the low motor current safeties will be ignored. The value is measured in seconds. 8. Low Motor Current Shutdown This parameter is used to select the set point for the Low Motor Current Shutdown. If the motor current falls below this value for a user defined period of time, a Low Motor Current Shutdown will be annunciated. The value is measured in amps. GEA Refrigeration North America, Inc. E_806550_2 Generated

118 Control Compressor Control Parameters 9. Low Motor Current Shutdown Timer This parameter is used to select the amount of time that the motor current must remain below the Low Motor Current Shutdown value before a Low Motor Current Shutdown will be annunciated. The value is measured in seconds. 10. Limitation Motor Current Load Inhibit Offset This parameter is used to set an offset value subtracted from the High Motor Current Shutdown value. If the motor current exceeds this calculated value, the compressor will be prevented from loading. The value is measured in Amps. 11. Limitation Motor Current Force Unload Offset This parameter is used to set an offset value subtracted from the High Motor Current Shutdown value. If the motor current exceeds this calculated value, the compressor will be forced to unload. The value is measured in Amps Motor Interlock Parameter Units Minimum Maximum Default Start Motor Failure to Interlock Timer Stopping Loss of Compressor Interlock Shutdown Timer Seconds 1 s 60 s 30 s Seconds 1.0 s 60.0 s 8.0 s 1. Start Motor Failure to Interlock Timer This parameter is used to select the amount of time the panel will wait to receive the compressor motor interlock signal after the compressor starter output is energized. If the interlock has not energized after this period of time, a Loss of Interlock Shutdown will be annunciated. The value is measured in seconds. 2. Stopping Loss of Compressor Interlock Timer This parameter is used to select the amount of time the panel will wait to annunciate an Illegal Interlock Shutdown if the compressor motor interlock persists after the motor is instructed to stop. The value is measured in seconds Motor Speed Parameter Units Minimum Maximum Default Proportional Term Unitless Integral Term s/r 1.0 s/r s/r 40.0 s/r Mode Selection See Description Manual Mode Position Percent 0 % 100 % 0 % 118 GEA Refrigeration North America, Inc. E_806550_2 Generated

119 Control Compressor Control Parameters Parameter Units Minimum Maximum Default rpm See Description High Motor Speed Shutdown rpm 100 rpm 6000 rpm 3000 rpm Low Motor Speed Shutdown rpm 100 rpm 3000 rpm 1800 rpm Motor Speed Maximum rpm 100 rpm 6000 rpm 3600 rpm Motor Speed Minimum rpm 100 rpm 3000 rpm 1800 rpm Motor Speed Start rpm 100 rpm 3000 rpm 100 rpm 1. Proportional Term This parameter is used to set the proportional gain for PI control of the motor speed. This value is multiplied by the total error between the current and desired speed values. This parameter is only visible if the configuration indicates that the compressor uses a variable speed motor. The value is unitless. 2. Integral Term This parameter is used to set the rate at which the motor PI controller will change its integral gain base on the calculated error over time. This parameter is only visible if the configuration indicates that the compressor uses a variable speed motor. The value is measured in samples per Repeat (s/r). 3. Mode This parameter is used to select whether the motor PI controller will vary its output automatically or if it will be controlled manually through the Manual Mode Position parameter. This parameter will only be visible if the configuration indicates that the compressor uses a variable speed motor. The options are: Auto Percent Motor Speed 4. Manual Mode Position This parameter is used to set the desired output of the PI controller while it is set to operate in manual mode. This parameter will only appear if the Mode parameter is not set to Auto. The minimum, maximum and default values will also change based on the currently selected option in the Mode parameter. If Percent is selected, the range will be fixed as indicated in the table above and the value will be measured in percent. If Motor Speed is selected, the minimum value will be equal to the value of the Motor Speed Minimum parameter, the maximum will be set to the value of the Motor Speed Maximum parameter, and the value will be measured in rpm. 5. High Motor Speed Shutdown This parameter is used to set the motor speed value above which a High Motor Speed Shutdown will be annunciated. This parameter is only visible if the configuration indicates that the compressor is equipped with a variable speed motor and a separate motor speed input. The value is measured in rpm. GEA Refrigeration North America, Inc. E_806550_2 Generated

120 Control Compressor Control Parameters 6. Low Motor Speed Shutdown This parameter is used to set the motor speed value below which a Low Motor Speed Shutdown will be annunciated. This parameter is only visible if the configuration indicates that the compressor is equipped with a variable speed motor and a separate motor speed input. The value is measured in rpm. 7. Motor Speed Maximum This parameter is used to set the speed the motor will run at when the speed reference analog output is set to 20 ma. This parameter will only be visible if the configuration indicates that the compressor uses a variable speed motor. The value is measured in rpm. 8. Motor Speed Minimum This parameter is used to set the speed the motor will run at when the speed reference analog output is set to 4 ma. This parameter will only be visible if the configuration indicates that the compressor uses a variable speed motor. The value is measured in rpm Motor Temperature Parameter Units Minimum Maximum Default High Motor Bearing Shutdown High Motor Bearing Warning Offset High Motor Winding Shutdown High Motor Winding Warning Offset C 0.0 C C C F 32.0 F F F Kelvin 0.0 K 50.0 K 10.0 K F 0.0 F 90.0 F 18.0 F C 0.0 C C C F 32.0 F F F Kelvin 0.0 K 50.0 K 10.0 K F 0.0 F 90.0 F 18.0 F 1. High Motor Bearing Shutdown This parameter is used to select the temperature value in the either motor bearing above which a high temperature shutdown condition will be annunciated. This parameter will only be visible if motor bearing temperature monitoring is selected in the Motor Temperature Safeties field motor section of the configuration. The value is measured in the panel temperature units as selected on the Panel Settings screen. 2. High Motor Bearing Warning Offset This parameter is used to set an offset value subtracted from the High Motor Bearing Shutdown parameter. If the temperature on either motor bearing exceeds this calculated value, a high temperature warning condition will be annunciated. This parameter will only be visible if motor bearing temperature monitoring is selected in the Motor Temperature Safeties field motor section of the configuration. The value is measured in the panel temperature units as selected on the Panel Settings screen. 120 GEA Refrigeration North America, Inc. E_806550_2 Generated

121 Control Compressor Control Parameters 3. High Motor Winding Shutdown This parameter is used to select the temperature value in any motor winding phase above which a high temperature shutdown condition will be annunciated. This parameter will only be visible if motor winding temperature monitoring is selected in the Motor Temperature Safeties field motor section of the configuration. The value is measured in the panel temperature units as selected on the Panel Settings screen. 4. High Motor Winding Warning Offset This parameter is used to set an offset value subtracted from the High Motor Winding Shutdown parameter. If the temperature on either motor bearing exceeds this calculated value, a high temperature warning condition will be annunciated. This parameter will only be visible if motor winding temperature monitoring is selected in the Motor Temperature Safeties field motor section of the configuration. The value is measured in the panel temperature units as selected on the Panel Settings screen. GEA Refrigeration North America, Inc. E_806550_2 Generated

122 Control Compressor Control Parameters Oil Pump Parameter Units Minimum Maximum Default Oil Pump 1 Runtime Hours 0.0 h h 0.0 h Oil Pump 2 Runtime Hours 0.0 h h 0.0 h Oil Pump Start Attempts Unitless Oil Pump Drain Timer Minutes 10 min 30 min 10 min Oil Pump Compressor Allowed Start Timer Seconds 10 s 60 s 35 s Oil Pump Prelube Timer Seconds 0 s 120 s 0 s Oil Pump Postlube Timer Seconds 0 s 30 s 0 s Oil Pump Run Minimum Timer Seconds 0 s 300 s 0 s barg barg 8.99 barg 5.86 barg bara 0.00 bara bara 6.87 bara PSIG 29.9 inhg PSIG 84.9 PSIG PSIA 0.0 PSIA PSIA 99.6 PSIA Oil Pump Cycle On kpag -101 kpag 899 kpag 585 kpag kpaa 0 kpaa 1000 kpaa 686 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g mmhg 9.16 kg/m²g 5.96 kg/cm²g kg/cm²a 0.00 kg/cm²a kg/cm²a 7.71 kg/cm2a barg barg 8.99 barg 6.55 barg Oil Pump Cycle Off bara 0.00 bara bara 7.56 bara PSIG 29.9 inhg PSIG 95.0 PSIG 122 GEA Refrigeration North America, Inc. E_806550_2 Generated

123 Control Compressor Control Parameters Parameter Units Minimum Maximum Default PSIA 0.0 PSIA PSIA PSIA kpag -101 kpag 899 kpag 655 kpag kpaa 0 kpaa 1000 kpaa 756 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g mmhg 9.16 kg/cm²g 6.68 kg/cm²g kg/cm²a 0.00 kg/cm²a kg/cm²a 7.01 kg/cm²a Oil Pump Lead Selection Selection See Description Oil Pump Maintained Timer Seconds 0 s 300 s 2 s Oil Pump Circulation Mode Oil Pump Circulation Temperature Set Point Oil Pump Circulation Shutdown Timer Selection See Description C 0.0 C 50.0 C 10.0 C F 32.0 F F 50.0 F Seconds 0 s 600 s 120 s Time Between Oil Pump Circulation Hours 0 h 500 h 4 h Duration of Oil Pump Circulation Minutes 0 min 500 min 4 min 1. Oil Pump 1 Runtime This parameter is used to display the total accumulated runtime of the first oil pump. The value is measured in hours. 2. Oil Pump 2 Runtime This parameter is used to display the total accumulated runtime of the second oil pump. This parameter will only be visible if dual oil pump control is enabled in the Oil System Details section of the configuration. The value is measured in hours. 3. Oil Pump Start Attempts This parameter is used to select the number of times the oil pump will attempt to start to build oil pressure. If this number is exceeded, a Low Oil Differential Shutdown will be annunciated. This parameter will only be enabled if the compressor brand is set to Grasso. GEA Refrigeration North America, Inc. E_806550_2 Generated

124 Control Compressor Control Parameters 4. Oil Pump Drain Timer This parameter is used to select the amount of time the compressor must wait whenever oil must be drained from the system before it will be permitted to start. The value is measured in minutes. 5. Oil Pump Compressor Allowed Start Timer This parameter is used to select the period of time within which the oil pump may run and the compressor is still permitted to start. If this time period is exceeded, the oil must be drained before the compressor may start. The value is measured in seconds. 6. Oil Pump Prelube Timer This parameter is used to select the period of time that the oil pump will run before the compressor is started. This parameter is not used on Grasso compressors. The value is measured in seconds. 7. Oil Pump Postlube Timer This parameter is used to select the period of time that the oil pump will remain running after the compressor has stopped. This parameter is not used on Grasso compressors. The value is measured in seconds. 8. Oil Pump Run Minimum Timer This parameter is used to select the minimum amount of time that the oil pump must run when it is started based on low differential pressure. It will only appear if the oil pump type is set to External Cycling in the configuration. The value is measured in seconds. 9. Oil Pump Cycle On This parameter is used to select the oil differential above which the oil pump will start. It will only appear if the oil pump type is set to External Cycling in the configuration. The value is measured in seconds. 10. Oil Pump Cycle Off This parameter is used to select the oil differential below which the oil pump will stop after the time period defined by the Oil Pump Run Minimum Timer haselapsed. It will only appear if the oil pump type is set to External Cycling in the configuration. The value is measured in seconds. 11. Oil Pump Lead Selection This parameter is used to select whether Pump 1 or Pump 2 is considered the lead pump. This parameter is only visible if the Dual Oil Pump option is selected in the Oil System Details section of the configuration. The options are: Pump 1 Pump Oil Pump Maintained Timer This parameter is used to select the period of time during startup that the oil pump must maintain a valid oil differential pressure value before the compressor will be permitted to start. This parameter is fixed on Grasso compressors and will not be visible. The value is measured in seconds. 124 GEA Refrigeration North America, Inc. E_806550_2 Generated

125 Control Compressor Control Parameters 13. Oil Pump Circulation Mode This parameter is used to select the mode of operation of the oil circulation system, if applicable. The options are: Disabled This option indicates that the panel is not configured to control oil circulation. Temperature This option indicates that when the compressor is starting, the panel will check that the oil temperature is greater than or equal to the value of the Oil Pump Circulation Temperature Set Point. If the oil temperature does not meet this condition, the oil pump will run to attempt to bring the temperature reading up to the appropriate value. If the temperature has not reached the selected value after a period of time specified in the Oil Pump Circulation Shutdown Timer parameter, a shutdown will be annunciated. Time This option indicates that whenever the compressor is in the stopped state, the oil pump will periodically run for a period of time determined in the Duration of Oil Pump Circulation parameter. The time that will elapse between circulation cycles is selected in the Time Between Oil Pump Circulation parameter. 14. Oil Pump Circulation Temperature Set Point This parameter is used to select the value that the oil temperature must exceed on startup. If the oil temperature is below this set point, the oil pump circulation will start. This parameter is only visible if the Oil Pump Circulation Mode parameter is set to Temperature. The value is measured in the panel temperature units as selected in the Panel Settings screen. 15. Oil Pump Circulation Shutdown Timer This parameter is used to select the period of time that the oil pump will circulate to attempt to raise the oil temperature to an appropriate value before a shutdown condition will be annunciated. This parameter is only visible if the Oil Pump Circulation Mode parameter is set to Temperature. The value is measured in seconds. 16. Time Between Oil Pump Circulation This parameter is used to select the period of time the oil pump will be stopped between circulation cycles. It is only visible if the Oil Pump Circulation Mode parameter is set to Time. The value is measured in hours. 17. Duration Of Oil Pump Circulation This parameter is used to select the period of time the oil pump will run during a circulation cycle. It is only visible if the Oil Pump Circulation Mode parameter is set to Time. The value is measured in minutes. GEA Refrigeration North America, Inc. E_806550_2 Generated

126 Control Compressor Control Parameters Oil Pump Interlock Parameter Units Minimum Maximum Default Illegal Oil Pump Interlock Shutdown Timer Oil Pump Loss of Lead Interlock Warning Oil Pump Loss of Interlock Shutdown Timer Seconds 1 s 60 s 5 s Seconds 1 s 60 s 5 s Seconds 1 s 60 s 5 s 1. Illegal Oil Pump Interlock Shutdown Timer This parameter is used to select the amount of time the panel will wait to trigger an Illegal Oil Pump Interlock Shutdown if the oil pump interlock signal is received while the oil pump is not running. The value is measured in seconds. 2. Oil Pump Loss of Lead Interlock Warning This parameter is used to select the period of time that the system will wait before annunciating a Loss of Interlock Warning for the lead oil pump. The parameter will only be visible if the compressor is configured with dual oil pumps. The value is measured in seconds. 3. Oil Pump Loss Of Interlock Shutdown Timer This parameter is used to select the amount of time the panel will wait to trigger a Loss of Interlock Shutdown if the oil pump interlock signal is lost while the oil pump is running. The value is measured in seconds Oil Differential Pressure Parameter Units Minimum Maximum Default barg bara 1.00 bard High Oil Differential Pressure Shutdown PSIG PSIA kpag kpaa 14.5 PSID 100 kpad See Description See Description MPaG MPaA MPaD 126 GEA Refrigeration North America, Inc. E_806550_2 Generated

127 Control Compressor Control Parameters Parameter Units Minimum Maximum Default kg/cm²g kg/cm²a 1.02 kg/cm²d High Oil Differential Pressure Starting Shutdown Timer High Oil Differential Pressure Running Shutdown Timer Seconds 0 s 900 s See Description Seconds 0 s 900 s See Description High Oil Differential Pressure Warning Offset barg bara PSIG PSIA kpag kpaa MPaG MPaA kg/cm²g kg/cm²a 0.10 bard bard 0.25 bard 1.5 PSID PSID 3.6 PSID 10 kpad 1000 kpad 25 kpad MPaD MPaD MPaD 0.10 kg/cm²d kg/cm²d 0.25 kg/cm²d High Oil Differential Pressure Warning Timer Seconds 0 s 600 s See Description barg bara bard bard Low Oil Differential Pressure Shutdown PSIG PSIA PSID PSID See Description kpag kpaa -300 kpad 1000 kpad GEA Refrigeration North America, Inc. E_806550_2 Generated

128 Control Compressor Control Parameters Parameter Units Minimum Maximum Default MPaG MPaA kg/cm²g kg/cm²a MPaD MPaD -3.1 kg/cm²d kg/cm²d Low Oil Differential Pressure Starting Shutdown Timer Low Oil Differential Pressure Running Shutdown Timer Seconds 0 s 900 s See Description Seconds 0 s 900 s See Description Low Oil Differential Pressure Warning Offset barg bara PSIG PSIA kpag kpaa MPaG MPaA kg/cm²g kg/cm²a 0.10 bard bard 0.10 bard 1.5 PSID PSID 1.5 PSID 10 kpad 1000 kpad 10 kpad MPaD MPaD MPaD 0.10 kg/cm²d kg/cm²d 0.10 kg/cm²d Low Oil Differential Pressure Warning Timer Seconds 0 s 600 s See Description Low Oil Differential Run Delay Seconds 1 s 30 s See Description 1. High Oil Differential Pressure Shutdown This parameter is used to select the maximum allowable differential in oil pressure. If the differential exceeds this value, a High Oil Differential Pressure Shutdown will be annunciated. The maximum allowable value for this parameter is set in the configuration. The default value of this parameter is dependent on the selected compressor manufacturer. The value is measured in the panel pressure units as selected on the Panel Settings screen. 128 GEA Refrigeration North America, Inc. E_806550_2 Generated

129 Control Compressor Control Parameters 2. High Oil Differential Pressure Starting Shutdown Timer This parameter is used to select the period of time that the Oil Differential Pressure may exceed the High Oil Differential Pressure Shutdown parameter while the compressor is starting before a High Oil Differential Pressure Shutdown is annunciated. The default value of this parameter is dependent on the compressor manufacturer. This parameter is fixed on Grasso compressors and will not be visible. The value is measured in seconds. 3. High Oil Differential Pressure Running Shutdown Timer This parameter is used to select the period of time that the Oil Differential Pressure may exceed the High Oil Differential Pressure Shutdown parameter while the compressor is running before a High Oil Differential Pressure Shutdown is annunciated. The default value of this parameter is dependent on the compressor manufacturer. This parameter is fixed on Grasso compressors and will not be visible. The value is measured in seconds. 4. High Oil Differential Pressure Warning Offset This parameter is used to set an offset value subtracted from the High Oil Differential Pressure Shutdown value. If the differential exceeds this calculated value, a High Oil Differential Pressure Warning will be annunciated. The value is measured in the panel pressure units as selected on the Panel Settings screen. 5. High Oil Differential Pressure Warning Timer This parameter is used to select the period of time for which the Oil Differential Pressure may exceed the calculated value for the High Oil Differential Pressure Warning before a High Oil Differential Pressure Warning is annunciated. The default value of this parameter is dependent on the compressor manufacturer. This parameter is fixed on Grasso compressors and will not be visible. The value is measured in seconds. 6. Low Oil Differential Pressure Shutdown This parameter is used to select the minimum allowable differential in oil pressure. If the differential falls below this value, a Low Oil Differential Pressure Shutdown will be annunciated. The default value of this parameter is dependent on the compressor manufacturer. The value is measured in the panel pressure units as selected on the Panel Settings screen. 7. Low Oil Differential Pressure Starting Shutdown Timer This parameter is used to select the period of time that the Oil Differential Pressure may fall below the Low Oil Differential Pressure Shutdown parameter while the compressor is starting before a Low Oil Differential Pressure Shutdown is annunciated. The default value of this parameter is dependent on the compressor manufacturer. This parameter is fixed on Grasso compressors and will not be visible. The value is measured in seconds. 8. Low Oil Differential Pressure Running Shutdown Timer This parameter is used to select the period of time that the Oil Differential Pressure may fall below the Low Oil Differential Pressure Shutdown parameter while the compressor is running before a Low Oil Differential Pressure Shutdown is annunciated. The default value of this parameter is dependent on the compressor manufacturer. This parameter is fixed on Grasso compressors and will not be visible. The value is measured in seconds. 9. Low Oil Differential Pressure Warning Offset This parameter is used to set an offset value added to the Low Oil Differential Pressure Shutdown value. If the differential falls below this calculated value, a Low Oil Differential Pressure Warning will be annunciated. The value is measured in the panel pressure units as selected on the Panel Settings screen. GEA Refrigeration North America, Inc. E_806550_2 Generated

130 Control Compressor Control Parameters 10. Low Oil Differential Pressure Warning Timer This parameter is used to select the period of time for which the Oil Differential Pressure may exceed the calculated value for the Low Oil Differential Pressure Warning before a Low Oil Differential Pressure Warning is annunciated. The default value of this parameter is dependent on the compressor manufacturer. This parameter is fixed on Grasso compressors and will not be visible. The value is measured in seconds. 11. Low Oil Differential Run Delay This parameter is used to select for what period of time the Low Oil Differential parameters will be ignored after the compressor is started. The default value of this parameter is dependent on the compressor manufacturer. The value is measured in seconds Oil Filter Pressure Parameter Units Minimum Maximum Default High Oil Filter Differential Shutdown barg bara PSIG PSIA kpag kpaa MPaG MPaA kg/cm²g kg/cm²a 0.10 bard bard 1.38 bard 1.5 PSID PSID 20.0 PSID 10 kpad 2000 kpad 138 kpad MPaD MPaD MPaD 1.41 kg/cm2d kg/cm2d 1.41 kg/cm2d barg 5.00 bard 1.03 bard 0.10 bard bara bard 1.38 bard High Oil Filter Differential Warning Offset PSIG 72.5 PSID 14.9 PSID 1.5 PSID PSIA PSID 20.0 PSID kpag kpaa 10 kpad 500 kpad 103 kpad 130 GEA Refrigeration North America, Inc. E_806550_2 Generated

131 Control Compressor Control Parameters Parameter Units Minimum Maximum Default MPaG MPaA kg/cm²g kg/cm²a MPaD MPaD MPaD 0.10 kg/cm2d 5.10 kg/cm2d 1.05 kg/cm2d High Oil Filter Differential Timer Seconds 1 s 60 s 5 s Illegal Oil Filter Differential Pressure Warning Timer Seconds 0 s 300 s 60 s Oil Filter Pipe Loss Adjustment barg bara PSIG PSIA kpag kpaa MPaG MPaA kg/cm²g kg/cm²a 0.00 bard 6.89 bard 0.00 bard 0.0 PSID 100.0PSID 0.0 PSID 0 kpad 689 kpad 0 kpad MPaD MPaD MPaD 0.00 kg/cm2d 7.03 kg/cm2d 0.00 kg/cm2d 1. High Oil Filter Differential Shutdown This parameter is used to select the maximum allowable differential in oil filter pressure while the compressor is running or starting. If the differential exceeds this value a High Oil Filter Differential Shutdown will be annunciated. The value is measured in the panel pressure units as selected on the Panel Settings screen. 2. High Oil Filter Differential Warning Offset This parameter is used to set an offset value subtracted from the High Oil Filter Pressure Differential Shutdown value. If the differential exceeds this calculated value, a High Oil Filter Differential Warning will be annunciated. The value is measured in the panel pressure units as selected on the Panel Settings screen. 3. High Oil Filter Differential Timer This parameter is used to select for what period of time the High Oil Filter Differential parameters will be ignored after the compressor is started. The value is measured in seconds. GEA Refrigeration North America, Inc. E_806550_2 Generated

132 Control Compressor Control Parameters 4. Illegal Oil Filter Differential Pressure Warning Timer This parameter is used to select the period of time that an Illegal Oil Filter Differential condition may remain before an Illegal Oil Filter Differential Pressure Warning will be annunciated. The value is measured in seconds. 5. Oil Filter Pipe Loss Adjustment This parameter is used to set the anticipated loss in oil pressure between the inlet and outlet of the oil filter. This value will be added to the Oil Filter Differential Pressure value. This parameter will only be visible if the compressor is equipped with an oil filter outlet pressure transducer but is not equipped with an inlet oil filter pressure transducer. The value is measured in the panel pressure units as selected on the Panel Settings screen Oil Separator Parameter Units Minimum Maximum Default Oil Separator Temperature Set point High Oil Separator Temperature Shutdown High Oil Separator Temperature Warning Offset Low Oil Separator Temperature Shutdown Low Oil Separator Temperature Warning Offset High Oil Separator Level Shutdown Timer High Oil Separator Level Warning Timer Low Oil Separator Level Else Shutdown Timer Low Oil Separator Level Stop Shutdown Timer C 18.3 C C 18.3 C F 65.0 F F 65.0 F C 18.3 C C 82.2 C F 65.0 F F F Kelvin 0.0 K 70.0 K 8.3 K F 0.0 F F 14.9 F C 18.3 C C 18.3 C F 65.0 F F 65.0 F Kelvin 0.0 K 70.0 K 5.6 K F 0.0 F F 14.9 F Seconds 0 s 600 s 5 s Seconds 0 s 300 s 5 s Seconds 1 s 900 s 180 s Seconds 1 s 900 s 30 s 132 GEA Refrigeration North America, Inc. E_806550_2 Generated

133 Control Compressor Control Parameters 1. Oil Separator Temperature Set Point This parameter is used to select the temperature value that should be maintained in the separator while the compressor is not running. This parameter will only be visible if the compressor is configured for oil separator heater control. The value is measured in the panel temperature units as selected on the Panel Settings screen. 2. High Oil Separator Temperature Shutdown This parameter is used to select the temperature value in the separator above which a High Oil Separator Shutdown will be annunciated. The annunciation will only be triggered if the compressor is starting. The value is measured in the panel temperature units as selected on the Panel Settings screen. 3. High Oil Separator Temperature Warning This parameter is used to set an offset value subtracted from the High Oil Separator Temperature Shutdown Parameter. If the oil temperature exceeds this calculated value, a High Oil Separator Temperature Warning will be annunciated. The annunciation will only be triggered if the compressor is starting. The value is measured in the panel temperature units as selected on the Panel Settings screen. 4. Low Oil Separator Temperature Shutdown This parameter is used to select the temperature value in the separator below which a Low Oil Separator Temperature Shutdown will be annunciated. The annunciation will only be triggered if the compressor is starting. The value is measured in the panel temperature units as selected on the Panel Settings screen. 5. Low Oil Separator Temperature Warning This parameter is used to set an offset value added to the Low Oil Separator Temperature Shutdown Parameter. If the oil temperature falls below this calculated value, a Low Oil Separator Temperature Warning will be annunciated. The annunciation will only be triggered if the compressor is starting. The value is measured in the panel temperature units as selected on the Panel Settings screen. 6. High Oil Separator Level Shutdown Timer This parameter is used to select the period of time for which the High Oil Separator Level input must remain de-energized before a High Oil Separator Level Shutdown will be annunciated. This parameter is only visible if the Oil Level Max option is selected in the level section of the Configuration. The value is measured in seconds. 7. High Oil Separator Level Warning Timer This parameter is used to select the period of time for which the High Oil Separator Level input must remain de-energized before a High Oil Separator Level Warning will be annunciated. This parameter is only visible if the Oil Level Max option is selected in the level section of the Configuration. The value is measured in seconds. 8. Low Oil Separator Else Shutdown Timer This parameter is used to select the period of time for which the Oil Separator Low Level input must remain de-energized while the compressor is not stopped before a Low Oil Separator Level Shutdown will be issued. This parameter is only visible if the Oil Level Min option is selected in the level section of the Configuration. The value is measured in seconds. 9. Low Oil Separator Level Stop Shutdown Timer This parameter is used to select the period of time for which the Oil Separator Low Level input must remain de-energized while the compressor is stopped before a Low Oil Separator Level Shutdown will be issued. This parameter is only visible if the Oil Level Min option is selected in the level section of the Configuration. The value is measured in seconds. GEA Refrigeration North America, Inc. E_806550_2 Generated

134 Control Compressor Control Parameters Oil Temperature Parameter Units Minimum Maximum Default High Oil Temperature Shutdown High Oil Temperature Warning Offset Low Oil Separator Temperature Low Oil Temperature Warning Offset C 18.3 C C 79.4 C F 65.0 F F F Kelvin 0.0 K 70.0 K 5.6 K F 0.0 F 90.0 F 10.0 F C 18.3 C C 18.3 C F 65.0 F F 65.0 F Kelvin 0.0 K 70.0 K 5.6 K F 0.0 F 90.0 F 10.0 F Low Oil Temperature Start Delay Seconds 0 s 600 s 300 s 1. High Oil Temperature Shutdown This parameter is used to select the oil temperature value above which a High Oil Temperature Shutdown will be annunciated. The shutdown will only be issued if the compressor is running. The value is measured in the panel temperature units as selected on the Panel Settings screen. 2. High Oil Temperature Warning Offset This parameter is used to set an offset value subtracted from the High Oil Temperature Shutdown parameter. If the oil temperature exceeds this calculated value, a High Oil Temperature Warning will be annunciated. The warning will only be issued if the compressor is running. The value is measured in the panel temperature units as selected on the Panel Settings screen. 3. Low Oil Temperature Shutdown This parameter is used to select the value of the oil temperature below which a Low Oil Temperature Shutdown will be annunciated. The shutdown will only be annunciated if the compressor is running. The value is measured in the panel temperature units as selected on the Panel Settings screen. 4. Low Oil Temperature Warning Offset This parameter is used to set an offset value added to the Low Oil Temperature Shutdown parameter. If the oil temperature falls below this calculated value, a Low Oil Temperature Warning will be annunciated. The warning will only be issued if the compressor is running. The value is measured in the panel temperature units as selected on the Panel Settings screen. 5. Low Oil Temperature Start Delay This parameter is used to select for what period of time the low oil temperature parameters will be ignored after the compressor is started. This value is measured in seconds. 134 GEA Refrigeration North America, Inc. E_806550_2 Generated

135 Control Compressor Control Parameters Suction Pressure Parameter Units Minimum Maximum Default barg barg barg 4.34 barg bara 0.10 bara bara 5.35 bara PSIG 27.0 inhg PSIG 62.9 PSIG PSIA 1.5 PSIA PSIA 77.6 PSIA High Suction Pressure Warning kpag -91 kpag 1278 kpag 434 kpag kpaa 10 kpaa 1379 kpaa 535 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g mmhg kg/cm²g 4.42 kg/cm²g kg/cm²a 0.10 kg/cm²a kg/cm²a 5.45 kg/cm²a High Suction Pressure Warning Start Delay Seconds 0 s 300 s 300 s barg barg barg barg bara 0.10 bara bara 0.98 bara PSIG 27.0 inhg PSIG 1.0 inhg PSIA 1.5 PSIA PSIA 14.2 PSIA Low Suction Pressure Shutdown kpag -91 kpag 1278 kpag -3 kpag kpaa 10 kpaa 1379 kpaa 98 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g mmhg kg/cm²g 24.8 mmhg kg/cm²a 0.10 kg/cm²a kg/cm²a 1.00 kg/cm²a GEA Refrigeration North America, Inc. E_806550_2 Generated

136 Control Compressor Control Parameters Parameter Units Minimum Maximum Default barg barg barg barg bara 0.10 bara bara 0.34 bara PSIG 27.0 inhg PSIG 27.0 inhg PSIA 1.5 PSIA PSIA 1.5 PSIA Low Suction Pressure Booster Shutdown kpag -91 kpag 1278 kpag -91 kpag kpaa 10 kpaa 1379 kpaa 10 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g mmhg kg/cm²g mmhg kg/cm²a 0.10 kg/cm²a kg/cm²a 0.10 kg/cm²a barg barg barg barg bara 0.10 bara bara 0.34 bara PSIG 27.0 inhg PSIG 27.0 inhg PSIA 1.5 PSIA PSIA 1.5 PSIA Low Suction Pressure High Stage Shutdown kpag -91 kpag 1278 kpag -91 kpag kpaa 10 kpaa 1379 kpaa 10 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g mmhg kg/cm²g mmhg kg/cm²a 0.10 kg/cm²a kg/cm²a 0.10 kg/cm²a Low Suction Pressure Warning Offset barg bara 0.00 bard 5.00 bard 0.14 bard 136 GEA Refrigeration North America, Inc. E_806550_2 Generated

137 Control Compressor Control Parameters Parameter Units Minimum Maximum Default Limitation Suction Pressure Load Inhibit Offset Limitation Suction Pressure Force Unload Offset PSIG PSIA kpag kpaa MPaG MPaA kg/cm²g kg/cm²a barg bara PSIG PSIA kpag kpaa MPaG MPaA kg/cm²g kg/cm²a barg bara PSIG PSIA 0.0 PSID 72.5 PSID 2.0 PSID 0 kpad 500 kpad 14 kpad MPaD MPaD MPaD 0.00 kg/cm²d 5.10 kg/cm²d 0.14 kg/cm²d 0.00 bard 5.00 bard 0.01 bard 0.0 PSID 72.5 PSID 0.1 PSID 0 kpad 500 kpad 1 kpad MPaD MPaD MPaD 0.00 kg/cm²d 5.10 kg/cm²d 0.01 kg/cm²d 0.00 bard 5.00 bard 0.01 bard 0.0 PSID 72.5 PSID 0.1 PSID GEA Refrigeration North America, Inc. E_806550_2 Generated

138 Control Compressor Control Parameters Parameter Units Minimum Maximum Default kpag kpaa MPaG MPaA kg/cm²g kg/cm²a 0 kpad 500 kpad 1 kpad MPaD MPaD MPaD 0.00 kg/cm²d 5.10 kg/cm²d 0.01 kg/cm²d 1. High Suction Pressure Warning This parameter is used to select the suction pressure value above which a High Suction Pressure Warning will be annunciated. The warning will only be issued if the compressor is running. The value is measured in the panel pressure units as selected on the Panel Settings screen. 2. High Suction Pressure Warning Start Delay This parameter is used to select for what period of time the high suction pressure safety parameters will be ignored after the compressor is started. The value is measured in seconds. 3. Low Suction Pressure Booster Shutdown This parameter is used to select the suction pressure value below which a Low Suction Pressure Shutdown will be annunciated. The parameter will only appear if the compressor application is set to Swing in the configuration. The shutdown will only be issued if the compressor currently operating as a booster. The value is measured in the panel pressure units as selected on the Panel Settings screen. 4. Low Suction Pressure High Stage Shutdown This parameter is used to select the suction pressure value below which a Low Suction Pressure Shutdown will be annunciated. The parameter will only appear if the compressor application is set to Swing in the configuration. The shutdown will only be issued if the compressor currently operating as a high stage. The value is measured in the panel pressure units as selected on the Panel Settings screen. 5. Low Suction Pressure Shutdown This parameter is used to select the suction pressure value below which a Low Suction Pressure Shutdown will be annunciated. The shutdown will only be issued if the compressor is running. The value is measured in the panel pressure units as selected on the Panel Settings screen. 6. Low Suction Pressure Warning Offset This parameter is used to set an offset value added to the Low Suction Pressure Shutdown value. If the suction pressure falls below this calculated value, a Low Suction Pressure Warning will be annunciated. The warning will only be issued if the compressor is running. The value is measured in the panel pressure units as selected on the Panel Settings screen. 7. Limitation Suction Pressure Load Inhibit Offset This parameter is used to set an offset value added to the Low Suction Pressure Shutdown parameter. If the suction pressure falls below this calculated value, the compressor will be prevented from loading. The value is measured in the panel pressure units as selected on the Panel Settings screen. 138 GEA Refrigeration North America, Inc. E_806550_2 Generated

139 Control Compressor Control Parameters 8. Limitation Suction Pressure Force Unload Offset This parameter is used to set an offset value added to the Low Suction Pressure Shutdown parameter. If the suction pressure falls below this calculated value, the compressor will be forced to unload. The value is measured in the panel pressure units as selected on the Panel Settings screen Discharge Pressure Parameter Units Minimum Maximum Default barg barg barg bara 1.00 bara bara PSIG 0.4 inhg PSIG PSIA 14.5 PSIA PSIA High Discharge Pressure Shutdown kpag -1 kpag 1448 kpag See Description kpaa 100 kpaa 1549 kpaa MPaG -001 MPaG MPaG MPaA MPaA MPaA kg/cm²g 9.8 mmhg kg/cm²g kg/cm²a 1.02 kg/cm²a kg/cm²a barg barg barg barg bara 1.00 bara bara 1.00 bara PSIG 0.4 inhg PSIG 0.4 inhg PSIA 14.5 PSIA PSIA 14.5 PSIA High Discharge Pressure Booster Shutdown kpag -1 kpag 1758 kpag -1 kpag kpaa 100 kpaa 1859 kpaa 100 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g 9.8 mmhg kg/cm²g 9.8 mmhg GEA Refrigeration North America, Inc. E_806550_2 Generated

140 Control Compressor Control Parameters Parameter Units Minimum Maximum Default kg/cm²a 1.02 kg/cm²a kg/cm²a 1.02 kg/cm²a barg barg barg barg bara 1.00 bara bara 1.00 bara PSIG 0.4 inhg PSIG 0.4 inhg PSIA 14.5 PSIA PSIA 14.5 PSIA High Discharge Pressure High Stage Shutdown kpag -1 kpag 1758 kpag -1 kpag kpaa 100 kpaa 1859 kpaa 100 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g 9.8 mmhg kg/cm²g 9.8 mmhg kg/cm²a 1.02 kg/cm²a kg/cm²a 1.02 kg/cm²a High Discharge Pressure Warning Offset barg bara PSIG PSIA kpag kpaa MPaG MPaA kg/cm²g kg/cm²a 0.00 bard bard 1.38 bard 0.0 PSID PSID 20.0 PSID 0 kpad 1000 kpad 138 kpad MPaD MPaD MPaD 0.00 kg/cm²d kg/cm²d 1.41 kg/cm²d Limitation Discharge Pressure Load Inhibit Offset barg 0.00 bard bard 1.38 bard 140 GEA Refrigeration North America, Inc. E_806550_2 Generated

141 Control Compressor Control Parameters Parameter Units Minimum Maximum Default bara Limitation Discharge Pressure Force Unload Offset PSIG PSIA kpag kpaa MPaG MPaA kg/cm²g kg/cm²a barg bara PSIG PSIA kpag kpaa MPaG MPaA kg/cm²g kg/cm²a 0.0 PSID PSID 20.0 PSID 0 kpad 1000 kpad 138 kpad MPaD MPaD MPaD 0.00 kg/cm²d kg/cm²d 1.41 kg/cm²d 0.00 bard bard 0.69 bard 0.0 PSID PSID 10.0 PSID 0 kpad 1000 kpad 69 kpad MPaG MPaG MPaG 0.00 kg/cm²d kg/cm²d 0.70 kg/cm²d 1. High Discharge Pressure Shutdown This parameter is used to select the discharge pressure value above which a High Discharge Pressure Shutdown will be annunciated. The shutdown will only be issued if the compressor is running. The maximum allowable value for this parameter is set in the configuration. The value is measured in the panel pressure units as selected on the Panel Settings screen. GEA Refrigeration North America, Inc. E_806550_2 Generated

142 Control Compressor Control Parameters 2. High Discharge Pressure Booster Shutdown This parameter is used to select the suction pressure value above which a High Discharge Pressure Shutdown will be annunciated. The parameter will only appear if the compressor application is set to Swing in the configuration. The shutdown will only be issued if the compressor currently operating as a booster. The value is measured in the panel pressure units as selected on the Panel Settings screen. 3. High Discharge Pressure High Stage Shutdown This parameter is used to select the suction pressure value above which a High Discharge Pressure Shutdown will be annunciated. The parameter will only appear if the compressor application is set to Swing in the configuration. The shutdown will only be issued if the compressor currently operating as a high stage. The value is measured in the panel pressure units as selected on the Panel Settings screen. 4. High Discharge Pressure Warning Offset This parameter is used to set an offset value subtracted from the High Discharge Pressure Shutdown parameter. If the discharge pressure exceeds this calculated value, a High Discharge Pressure Warning will be annunciated. The value is measured in the panel pressure units as selected on the Panel Settings screen. 5. Limitation Discharge Pressure Load Inhibit Offset This parameter is used to set an offset value subtracted from the Low Discharge Pressure Shutdown parameter. If the discharge pressure rises above this calculated value, the compressor will be prevented from loading. The value is measured in the panel pressure units as selected on the Panel Settings screen. 6. Limitation Discharge Pressure Force Unload Offset This parameter is used to set an offset value subtracted from the Low Discharge Pressure Shutdown parameter. If the discharge pressure rises above this calculated value, the compressor will be forced to unload. The value is measured in the panel pressure units as selected on the Panel Settings screen Discharge Temperature Parameter Units Minimum Maximum Default High Discharge Temperature Shutdown High Discharge Temperature Warning Offset C 1.0 C C C F 33.8 F F F Kelvin 0.0 K 50.0 K 4.4 K F 0.0 F 90.0 F 8.0 F 1. High Discharge Temperature Shutdown This parameter is used to select the discharge temperature value above which a High Discharge Temperature Shutdown will be annunciated. The shutdown will only be issued if the compressor is running. The value is measured in the panel temperature units as selected on the Panel Settings screen. 142 GEA Refrigeration North America, Inc. E_806550_2 Generated

143 Control Compressor Control Parameters 2. High Discharge Temperature Warning Offset This parameter is used to set an offset subtracted from the High Discharge Temperature Shutdown parameter. If the discharge temperature exceeds this calculated value, a High Discharge Temperature Warning will be annunciated. The warning will only be issued if the compressor is running. The value is measured in the panel temperature units as selected on the Panel Settings screen Oil Cooling Parameter Units Minimum Maximum Default Oil Cooling Control Signal Motorized Liquid Injection Valve Temperature Set Point Selection See Description C 45.0 C 80.0 C 65.0 C F F F F Minimum Valve Position Percent 2% 100% 10% Proportional Term Unitless Integral Term s/r 1.0 s/r s/r 40.0 s/r Mode Selection See Description Manual Mode Position Percent 0% 100% 0% Calibrate Time Before Bleed Seconds 5 s 90 s 30 s Liquid Injection Begin Liquid Injection End C 0.0 C C 54.4 C F 32.0 F F 130 F C 0.0 C C 48.9 C F 32.0 F F 120 F Liquid Injection Pulse Period Seconds 4 s 30 s 4 s 1. Oil Cooling Control Signal This parameter is used to select which temperature value will be referenced for control of the oil cooling solenoid. The options are: Discharge Temperature Inlet Oil Temperature GEA Refrigeration North America, Inc. E_806550_2 Generated

144 Control Compressor Control Parameters 2. Motorized Liquid Injection Valve Temperature Set Point This parameter is used to set the desired temperature value of the selected control signal that the modulating valve will attempt to maintain for oil cooling control. This parameter will only be visible if oil cooling type is set to IntelliSOC in the configuration. The value is measured in the panel temperature units as selected on the Panel Settings screen. 3. Minimum Valve Position This parameter is used to set the minimum value that the motorized liquid injection valve may be set to when the compressor is not running. This parameter will only be visible if oil cooling type is set to IntelliSOC in the configuration. The value is measured in percent. 4. Proportional Term This parameter is used to set the proportional gain for PI control of the valve position. This value is multiplied by the total error between the current and desired speed values. This parameter will only be visible if oil cooling type is set to IntelliSOC in the configuration. The value is unitless. 5. Integral Term This parameter is used to set the rate at which the motor PI controller will change its integral gain base on the calculated error over time. This parameter will only be visible if oil cooling type is set to IntelliSOC in the configuration. The value is measured in samples per Repeat (s/r). 6. Mode This parameter is used to select whether the PI controller will vary its output automatically or if it will be controlled manually through the Manual Mode Position parameter. This parameter will only be visible if oil cooling type is set to IntelliSOC in the configuration. The options are: Auto Manual 7. Manual Mode Position This parameter is used to set the desired output of the PI controller while it is set to operate in manual mode. This parameter will only be visible if oil cooling type is set to IntelliSOC in the configuration. The value is measured in percent. 8. Calibrate Time Before Bleed This parameter is used to set the period of time the motorized valve will remain fully unloaded at its 4 ma position after the compressor is stopped. This parameter will only be visible if oil cooling type is set to Intelli- SOC in the configuration. The value is measured in seconds. 9. Liquid Injection Begin This parameter is used to select the temperature of the selected control signal at which the liquid cooling process will begin. This parameter will only be visible if the oil cooling mode is not set to IntelliSOC. The value is measured in the panel temperature units as selected on the Panel Settings screen. 10. Liquid Injection End This parameter is used to select the temperature of the selected control signal below which the liquid cooling process will end. The value is measured in the panel temperature units as selected on the Panel Settings screen. 11. Liquid Injection Pulse Period This parameter is used to select the pulse period of the Liquid Injection Solenoid. The parameter will only be visible if the oil cooling type is set to Yosaku Pulsed Liquid Injection in the configuration. The value is measured in seconds. 144 GEA Refrigeration North America, Inc. E_806550_2 Generated

145 Control Compressor Control Parameters Inlet Temperature Parameter Units Minimum Maximum Default High Inlet Temperature Warning Low Inlet Temperature Warning C C C C F F F F C C C K F F F F 1. High Inlet Temperature Warning This parameter is used to select the value of the inlet oil temperature above which a High Inlet Temperature Warning condition will be annunciated. The parameter will only be visible if the control signal of the compressor is currently set to Inlet Temperature. The value is measured in the current temperature units of the panel as selected on the Panel Settings screen. 2. Low Inlet Temperature Warning This parameter is used to select the value of the inlet oil temperature below which a Low Inlet Temperature Warning condition will be annunciated. The parameter will only be visible if the control signal of the compressor is currently set to Inlet Temperature. The value is measured in the current temperature units of the panel as selected on the Panel Settings screen Outlet Temperature Parameter Units Minimum Maximum Default High Outlet Temperature Warning High Outlet Temperature Warning Timer Low Outlet Temperature Shutdown Low Outlet Temperature Shutdown Timer Low Outlet Temperature Warning Offset C C C C F F F F Seconds 0 s 300 s 120 s C C C 28.9 C F F F 84.0 C Seconds 0 s 300 s 120 s Kelvin 0.0 K 50.0 K 5.0 K F 32.0 F F 41.0 F GEA Refrigeration North America, Inc. E_806550_2 Generated

146 Control Compressor Control Parameters Parameter Units Minimum Maximum Default Low Outlet Temperature Warning Start Delay Limitation Outlet Temperature Load Inhibit Limitation Outlet Temperature Force Unload Seconds 0 s 300 s 120 s C 0.1 K 50.0 K 10.0 K F 0.2 F 90.0 F 18.0 F C 0.1 K 50.0 K 5.0 K F 0.2 F 90.0 F 9.0 F 1. High Outlet Temperature Warning This parameter is used to select the value of the outlet oil temperature above which a High Outlet Temperature Warning condition will be annunciated. The parameter will only be visible if the control signal of the compressor is currently set to Outlet Temperature. The value is measured in the current temperature units of the panel as selected on the Panel Settings screen. 2. High Outlet Temperature Warning Timer This parameter is used to select the period of time that the Outlet Temperature must exceed the value of the High Outlet Temperature Warning parameter before the warning will be annunciated. The parameter will only be visible if the control signal of the compressor is currently set to Outlet Temperature. The value is measured in seconds. 3. Low Outlet Temperature Shutdown This parameter is used to select the value of the outlet oil temperature below which a Low Outlet Temperature Shutdown condition will be annunciated. The parameter will only be visible if the control signal of the compressor is currently set to Outlet Temperature. The value is measured in the current temperature units of the panel as selected on the Panel Settings screen. 4. Low Outlet Temperature Shutdown Timer This parameter is used to select the period of time that the Outlet Temperature must remain below the value of the Low Outlet Temperature Shutdown parameter before the shutdown will be annunciated. The parameter will only be visible if the control signal of the compressor is currently set to Outlet Temperature. The value is measured in seconds. 5. Low Outlet Temperature Warning Offset This parameter is used to set an offset added to the Low Outlet Temperature Shutdown parameter. If the outlet temperature falls below this calculated value, a Low Outlet Temperature Warning will be annunciated. The warning will only be issued if the compressor is running. The parameter will only be visible if the control signal of the compressor is currently set to Outlet Temperature. The value is measured in the panel temperature units as selected on the Panel Settings screen. 6. Low Outlet Temperature Warning Start Delay This parameter is used to select the amount of time the compressor will be permitted to run after starting before a Low Outlet Temperature Warning condition will be annunciated. The parameter will only be visible if the control signal of the compressor is currently set to Outlet Temperature. The value is measured in seconds. 146 GEA Refrigeration North America, Inc. E_806550_2 Generated

147 Control Compressor Control Parameters 7. Limitation Outlet Temperature Load Inhibit This parameter is used to set an offset value added to the Low Outlet Temperature Shutdown parameter. If the Outlet Temperature falls below this calculated value, the compressor will be prevented from loading. The parameter will only be visible if the control signal of the compressor is currently set to Outlet Temperature. The value is measured in the panel temperature units as selected on the Panel Settings screen. 8. Limitation Outlet Temperature Force Unload This parameter is used to set an offset value added to the Low Outlet Temperature Shutdown parameter. If the outlet temperature falls below this calculated value, the compressor will be forced to unload. The parameter will only be visible if the control signal of the compressor is currently set to Outlet Temperature. The value is measured in the panel temperature units as selected on the Panel Settings screen Loss of Remote Start Signal Parameter Units Minimum Maximum Default Loss of Remote Start Signal Run Warning Timer Seconds 0 s 120 s 20 s 1. Loss of Remote Start Signal Run Warning Timer This parameter is only used if the compressor was manually started and then switched to remote mode. A start command must be received from a sequencer within the period of time selected here or a Loss of Remote Start Signal warning will be annunciated. The value is measured in seconds Power Failure Restart Parameter Units Minimum Maximum Default Power Failure Restart Mode Selection See Description Power Failure Restart Delay Seconds 0 s 8000 s 10 s Power Failure Restart Abort Timer Minutes 0.0 min min 10.0 min GEA Refrigeration North America, Inc. E_806550_2 Generated

148 Control Compressor Control Parameters 1. Power Failure Restart Mode This parameter is used to select what action the compressor should take in the event of a power outage. The options are: Disabled If this option is selected, the compressor will do nothing following a power outage. Local If this option is selected, the compressor will start in local mode following a power outage. Remote If this option is selected, the compressor will start in remote mode following a power outage. Shutdown If this option is selected, the compressor will annunciate a shutdown condition following a power outage. 2. Power Failure Restart Delay This parameter is used to select the period of time the panel will wait after recovering from a power outage before taking the action dictated in the Power Failure Restart Mode parameter. This parameter will only be visible if the Power Failure Restart Mode parameter is set to an option other than Disabled. The value is measured in seconds. 3. Power Failure Restart Abort Timer This parameter is used to select the maximum period of time that a power failure may persist before the power failure restart function will be disabled. If the duration of a power outage exceeds this time period, the panel will take no action once power is restored, regardless of the action dictated in the Panel Failure Restart Mode parameter. In this condition, a Power Failure Restart Abort shutdown condition will be annunciated. This parameter will only be visible if the Power Failure Restart Mode parameter is set to an option other than Disabled. The value is measured in minutes Superheat Parameter Units Minimum Maximum Default Superheat Suction Annunciations High Suction Superheat Shutdown High Suction Superheat Shutdown Timer Low Suction Superheat Shutdown Selection See Description Kelvin 0.0 K K K F 0.0 F F F Seconds 0 s 900 s 80 s Kelvin 0.0 K K 0.0 K F 0.0 F F 0.0 F 148 GEA Refrigeration North America, Inc. E_806550_2 Generated

149 Control Compressor Control Parameters Parameter Units Minimum Maximum Default Low Suction Superheat Shutdown Timer Superheat Discharge Annunciations High Discharge Superheat Shutdown High Discharge Superheat Shutdown Timer Low Discharge Superheat Shutdown Low Discharge Superheat Shutdown Timer Seconds 0 s 900 s 30 s Selection See Description Kelvin 0.0 K K K F 0.0 F F F Seconds 0 s 900 s 80 s C 0.0 K K 0.0 K F 0.0 F F 0.0 F Seconds 0 s 900 s 80 s 1. Superheat Suction Annunciations This parameter is used to select whether the panel suction superheat calculations are configured to trigger shutdown annunciations. 2. High Suction Superheat Shutdown This parameter is used to select the Suction Superheat temperature above which a High Suction Superheat Shutdown will be annunciated. This parameter will only be visible if the Superheat Annunciations parameter has been set to Enabled. The shutdown will only be issued if the compressor is starting or running. The value is measured in the panel temperature units as selected on the Panel Settings screen. 3. High Suction Superheat Shutdown Timer This parameter is used to select the period of time that the Suction Superheat value must remain above the value of the High Suction Superheat parameter before a High Suction Superheat Shutdown is annunciated. This parameter will only be visible if the Superheat Annunciations parameter has been set to Enabled. The value is measured in seconds. 4. Low Suction Superheat Shutdown This parameter is used to select the Suction Superheat temperature below which a Low Suction Superheat Shutdown will be annunciated. This parameter will only be visible if the Superheat Annunciations parameter has been set to Enabled. The shutdown will only be issued if the compressor is starting or running. The value is measured in the panel temperature units as selected on the Panel Settings screen. 5. Low Suction Superheat Shutdown Timer This parameter is used to select the period of time that the Suction Superheat value must remain below the value of the Low Suction Superheat parameter before a Low Suction Superheat Shutdown is annunciated. This parameter will only be visible if the Superheat Annunciations parameter has been set to Enabled. The value is measured in seconds. GEA Refrigeration North America, Inc. E_806550_2 Generated

150 Control Compressor Control Parameters 6. Superheat Discharge Annunciations This parameter is used to select whether the panel discharge superheat calculations are configured to trigger shutdown annunciations. 7. High Discharge Superheat Shutdown This parameter is used to select the Discharge Superheat temperature above which a High Discharge Superheat Shutdown will be annunciated. This parameter will only be visible if the Superheat Annunciations parameter has been set to Enabled. The shutdown will only be issued if the compressor is starting or running. The value is measured in the panel temperature units as selected on the Panel Settings screen. 8. High Discharge Superheat Shutdown Timer This parameter is used to select the period of time that the Discharge Superheat value must remain above the value of the High Discharge Superheat parameter before a High Discharge Superheat Shutdown is annunciated. This parameter will only be visible if the Superheat Annunciations parameter has been set to Enabled. The value is measured in seconds. 9. Low Discharge Superheat Shutdown This parameter is used to select the Discharge Superheat temperature below which a Low Discharge Superheat Shutdown will be annunciated. This parameter will only be visible if the Superheat Annunciations parameter has been set to Enabled. The shutdown will only be issued if the compressor is starting or running. The value is measured in the panel temperature units as selected on the Panel Settings screen. 10. Low Discharge Superheat Shutdown Timer This parameter is used to select the period of time that the Discharge Superheat value must remain below the value of the Low Discharge Superheat parameter before a Low Discharge Superheat Shutdown is annunciated. This parameter will only be visible if the Superheat Annunciations parameter has been set to Enabled. The value is measured in seconds Economizer Parameter Units Minimum Maximum Default Economizer Output On Above Capacity Slide Economizer Output Off Below Capacity Slide Percent 0 % 100 % 80 % Percent 0 % 100 % 70 % 1. Economizer Output On Above Capacity Slide This parameter is used to select the position of the capacity slide above which the economizer solenoid will be energized. This parameter will only be visible if the economizer option in the configuration is not set to Disabled. The value is measured in percent. 2. Economizer Output Off Below Capacity Slide This parameter is used to select the position of the capacity slide below which the economizer solenoid will be de-energized. This parameter will only be visible if the economizer option in the configuration is not set to Disabled. The value is measured in percent. 150 GEA Refrigeration North America, Inc. E_806550_2 Generated

151 Control Compressor Control Parameters Pump Down Parameter Units Minimum Maximum Default barg barg barg 3.47 barg bara 0.00 bara bara 4.48 bara PSIG 29.9 inhg PSIG 50.3 PSIG PSIA 0.0 PSIA PSIA 65.0 PSIA Compressor Start Pressure kpag -101 kpag 9899 kpag 347 kpag kpaa 0 kpaa kpaa 448 kpaa MPaG kpag kpag kpag MPaA kpaa kpaa kpaa kg/cm²g mmhg kg/cm²g 3.54 kg/cm²g kg/cm²a 0.00 kg/cm²a kg/cm²a 4.57 kg/cm²a Pump Down Maximum Time Minutes 1 min 40 min 10 min Pump Down Count Selection - See Description barg barg barg barg bara 0.00 bara bara 0.00 bara PSIG 29.9 inhg PSIG 29.9 inhg PSIA 0.0 PSIA PSIA 0.0 PSIA Pump Down Cycle On Set Point kpag -101 kpag 9899 kpag -101 kpag kpaa 0 kpaa kpaa 0 kpaa MPaG kpag kpag kpag MPaA kpaa kpaa kpaa kg/cm²g mmhg kg/cm²g mmhg kg/cm²a 0.00 kg/cm²a kg/cm²a 0.00 kg/cm²a GEA Refrigeration North America, Inc. E_806550_2 Generated

152 Control Compressor Control Parameters Parameter Units Minimum Maximum Default barg barg barg barg bara 0.00 bara bara 0.00 bara PSIG 29.9 inhg PSIG 29.9 inhg PSIA 0.0 PSIA PSIA 0.0 PSIA Pump Down Cycle Off Set Point kpag -101 kpag 9899 kpag -101 kpag kpaa 0 kpaa kpaa 0 kpaa MPaG kpag kpag kpag MPaA kpaa kpaa kpaa kg/cm²g mmhg kg/cm²g mmhg kg/cm²a 0.00 kg/cm²a kg/cm²a 0.00 kg/cm²a Pump Down Max Cycle Attempts Unitless Pump Down Max Cycle Period Hours 0.00 h h 0.00 h Second Liquid Feed On Above Capacity Second Liquid Feed Off Below Capacity Percent 0 % 100 % 50 % Percent 0 % 100 % 45 % 1. Compressor Start Pressure This parameter is used to select the value that the suction pressure must exceed after the liquid feed valve is opened during the compressor start process. Motor start will be delayed until this condition is met. The value is measured in the currently selected pressure units of the panel. 2. Pump Down Maximum Time This parameter is used to select the maximum amount of time that the panel will be permitted to run in pump down mode before a shutdown will be annunciated. 3. Pump Down Count This parameter is used to select whether the pump down process will run any time the suction pressure exceeds the Pump Down Cycle On Set Point, or if it will only execute a single time. The options are: Continuous Once 152 GEA Refrigeration North America, Inc. E_806550_2 Generated

153 Control Compressor Control Parameters 4. Pump Down Cycle On Set Point This parameter is used to select the value that the suction pressure must exceed while the compressor is in pump down mode before the compressor will start. The value is measured in the currently selected panel pressure units. 5. Pump Down Cycle Off Set Point This parameter is used to select the value that the suction pressure must fall below while the compressor is in pump down mode before the compressor will stop. The value is measured in the currently selected panel pressure units. 6. Pump Down Max Cycle Attempts This parameter is used to select the maximum number of times the compressor may attempt to cycle before a Too Many Pump Down s warning will be annunciated. 7. Pump Down Max Cycle Period This parameter is used to select the maximum time period that the compressor may remain in pump down mode. The value is measured in hours. 8. Second Liquid Feed On Above Capacity This parameter is used to select the value of the capacity slide above which the second liquid feed solenoid will be energized. The value is measured in percent. 9. Second Liquid Feed Off Below Capacity This parameter is used to select the value of the capacity slide below which the second liquid feed solenoid will be de-energized. The value is measured in percent Capacity Outputs Parameter Units Minimum Maximum Default Capacity Output 1 On Percent 0 % 100 % 0 % Capacity Output 1 Off Percent 0 % 100 % 0 % Capacity Output 2 On Percent 0 % 100 % 0 % Capacity Output 2 Off Percent 0 % 100 % 0 % Slide Or Capacity Selection Selection See Description 1. Capacity Output 1 On This parameter is used to select the capacity slide valve position above which Capacity Output 1 should be energized. 2. Capacity Output 1 Off This parameter is used to select the capacity slide valve position below which Capacity Output 1 should be de-energized. GEA Refrigeration North America, Inc. E_806550_2 Generated

154 Control Compressor Control Parameters 3. Capacity Output 1 Off This parameter is used to select the capacity slide valve position above which Capacity Output 2 should be energized. 4. Capacity Output 2 Off This parameter is used to select the capacity slide valve position below which Capacity Output 2 should be de-energized. 5. Slide Or Capacity Selection This parameter is used to select whether the capacity analog output point transmits the current capacity percentage of the compressor or the percentage of its maximum travel. The options are: Capacity Percent of Max Travel VTrac Parameter Units Minimum Maximum Default Causes Shutdown Selection See Description Disable VTrac Notifications Below Capacity Slide Percent 0 % 100 % 0 % 1. Causes Shutdown This parameter is used to select the type of annunciation that will be triggered by the VTrac. The parameter will only be visible if the compressor is configured for VTrac monitoring The options are: Warning Shutdown 2. Disable VTrac Notifications Below Capacity Slide This parameter is used to select the Slide valve position below which the VTrac will not trigger warnings or shutdowns. The parameter will only be visible if the compressor is configured for VTrac monitoring. The value is measured in percent Compressor Service Parameter Units Minimum Maximum Default Compressor Service Notification Selection See Description 154 GEA Refrigeration North America, Inc. E_806550_2 Generated

155 Control Oil Still Control Parameters 1. Compressor Service Notification This parameter is used to select whether the panel will annunciate notifications when service tasks are due. The options are: Enabled Disabled 3.2 Oil Still Control Parameters Control parameters are displayed on the main compressor screen detailed in Section 2.5.1, Page 31. Below is a list of all control parameters and a brief description of their function Oil Still Parameter Units Minimum Maximum Default Oil Return Transfer Mode Oil Return Automatic Transfer Day Selection See Description Selection See Description Oil Return Automatic Transfer Hour Hours 0 h 24 h 12 h Oil Return Automatic Transfer Minute Minute 0 min 60 min 0 min Hot Gas Return Cycle Timer Seconds 0 s 3600 s 30 s Heater On Temperature Heater Off Temperature C 10 C 70 C 20 C F 50 F 158 F 68 F C 10 C 70 C 70 C F 50 F 158 F 158 F Oil Drain Seconds 5 s 3600 s 30 s Drain Delay Seconds 5 s s 70 s Oil Return Seconds 5 s 3600 s 20 s Return Delay Seconds 5 s s 80 s GEA Refrigeration North America, Inc. E_806550_2 Generated

156 Control Oil Still Control Parameters 1. Oil Return Transfer Mode This parameter is used to select the method of oil return employed by the oil still. It is only visible on Oil Stills utilizing York style control. The options are: Manual Automatic Rapid Return 2. Oil Return Automatic Transfer Day This parameter is used to select which day of the week an automatic oil return cycle will occur. It is only visible on Oil Stills utilizing York style control when the Oil Return Mode parameter is set to Automatic. Any day of the week may be selected if an automatic oil return cycle is desired once a week, or Once A Day may be selected if a return should occur automatically every day. 3. Oil Return Automatic Transfer Hour This parameter is used to select the specific hour, counting up from midnight, in which an automatic oil return will be initiated on any day that a return is scheduled to occur as selected in the Oil Return Automatic Transfer Day parameter. It is only visible on Oil Stills utilizing York style control when the Oil Return Mode parameter is set to Automatic. The value is measured in hours. 4. Oil Return Automatic Transfer Minute This parameter is used to select the specific minute, within the hour selected in the Oil Return Automatic Transfer Hour parameter in which an automatic oil return will be initiated on any day that a return is scheduled to occur as selected in the Oil Return Automatic Transfer Day parameter. It is only visible on Oil Stills utilizing York style control when the Oil Return Mode parameter is set to Automatic. The value is measured in Minutes. 5. Hot Gas Return Cycle Timer This parameter is used to select the period of time for which a hot gas return cycle will remain active. It is only visible on Oil Stills utilizing York style control which are configured for Hot Gas Oil Return. The value is measured in seconds. 6. Heater On Temperature This parameter is used to select the temperature value below which the oil still heater will be permitted to run. It is only visible on Oil Stills utilizing York style control which are configured for an analog temperature probe. The value is measured in the panel temperature units as selected in the Panel Settings screen. 7. Heater Off Temperature This parameter is used to select the temperature value above which the oil still heater will not be permitted to run. It is only visible on Oil Stills utilizing York style control which are configured for an analog temperature probe. The value is measured in the panel temperature units as selected in the Panel Settings screen. 8. Oil Drain This parameter is used to select the period of time that the oil still will remain in Oil Drain mode. It is only visible on Oil Stills utilizing Berlin style control. The value is measured in seconds. 9. Drain Delay This parameter is used to select the period of time that the oil still will wait before entering Oil Drain. It is only visible on Oil Stills utilizing Berlin style control. The value is measured in seconds. 156 GEA Refrigeration North America, Inc. E_806550_2 Generated

157 Control Condenser Sequencer Control Parameters 10. Oil Return This parameter is used to select the period of time that the oil still will remain in Oil Return mode. It is only visible on Oil Stills utilizing Berlin style control. The value is measured in seconds. 11. Return Delay This parameter is used to select the period of time that the oil still will wait before entering Oil Return. It is only visible on Oil Stills utilizing Berlin style control. The value is measured in seconds. 3.3 Condenser Sequencer Control Parameters Control parameters are displayed on the main Condenser screen detailed in Section 2.6.2, Page 39. Below is a list of all control parameters and a brief description of their function Schedule The panel supports four sets of schedule parameters. Parameter Control Signal Units Minimum Maximum Default Selection See Description Set Point Dependent on Control Signal. Refer to Panel Data Report Previous Step Dependent on Control Signal. Refer to Panel Data Report Next Step Dependent on Control Signal. Refer to Panel Data Report 1. Control Signal This parameter is used to set which input will be monitored to control the sequencer. The options are: Discharge Pressure Wet Bulb Condenser Control Temperature Hint! If this parameter is changed to an option with a different unit type, the Set Point will be reset to its default values. 2. Set Point This parameter is used to choose the desired value at which the sequencer will attempt to maintain the Control Signal. The maximum value, minimum value and units of the parameter are dependent on the chosen control signal. Discharge Pressure or Wet Bulb Measured in the panel pressure units as selected in the Panel Settings screen. Condenser Control Temperature Measured in the panel temperature units as selected in the Panel Settings screen. GEA Refrigeration North America, Inc. E_806550_2 Generated

158 Control Condenser Sequencer Control Parameters 3. Previous Step This parameter is used to select the amount that the control signal must deviate from the Set Point before the sequencer will begin the process of switching to the previous step in the schedule. The maximum value, minimum value and units of the parameter are dependent on the chosen control signal. Discharge Pressure or Wet Bulb Measured in the panel pressure units as selected in the Panel Settings screen. Condenser Control Temperature Measured in the panel temperature units as selected in the Panel Settings screen. 4. Next Step This parameter is used to select the amount that the control signal must deviate from the Set Point before the sequencer will begin the process of switching to the next step in the schedule. The maximum value, minimum value and units of the parameter are dependent on the chosen control signal. Discharge Pressure or Wet Bulb Measured in the panel pressure units as selected in the Panel Settings screen. Condenser Control Temperature Measured in the panel temperature units as selected in the Panel Settings screen Wet Bulb Control Hint! This section will only appear if at least one of the schedules has Wet Bulb selected as its control signal. Parameter Units Minimum Maximum Default 0.00 bard 2.07 bard 0.00 bard 0.00 PSID 30.0 PSID 0.00 PSID 0.00 kpad 207 kpad 0.00 kpad 0.00 MPaD MPaD 0.00 MPaD barg bara PSIG PSIA Wet Bulb Set Point Split kpag kpaa MPaG MPaA 158 GEA Refrigeration North America, Inc. E_806550_2 Generated

159 Control Condenser Sequencer Control Parameters Parameter Units Minimum Maximum Default kg/cm²g kg/cm²a 0.00 kg/cm²d 2.11 kg/cm²d 0.00 kg/cm²d 1. Wet Bulb Set Point Split This parameter is used to select the value that will be added to the calculated ideal saturated discharge pressure to obtain the floating set point. The value is measured in the panel pressure units as selected on the Panel Settings screen Discharge Pressure Parameter Units Minimum Maximum Default barg 5.17 barg barg barg bara 6.18 bara bara bara PSIG 75.0 PSIG PSIG PSIG PSIA 89.6 PSIA PSIA PSIA High Discharge Pressure Warning kpag 517 kpag 2413 kpag 1206 kpag kpaa 618 kpaa 2514 kpaa 1306 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g 5.27 kg/cm²g kg/cm²g kg/cm²g kg/cm²a 6.30 kg/cm²a kg/cm²a kg/cm²a High Discharge Pressure Warning Delay Seconds 0 s 30 s 0 s barg barg barg 8.27 barg Low Discharge Pressure Warning bara 0.00 bara bara 9.28 bara PSIG PSIG PSIG PSIG PSIA 0.00 PSIA PSIA PSIA GEA Refrigeration North America, Inc. E_806550_2 Generated

160 Control Condenser Sequencer Control Parameters Parameter Units Minimum Maximum Default kpag -101 kpag 2413 kpag 827 kpag kpaa 0.00 kpaa 2514 kpaa 928 kpaa MPaG MPaG MPaG MPaG MPaA 0.00 MPaA MPaA MPaA kg/cm²g 0.00 kg/cm²g kg/cm²g 8.43 kg/cm²g kg/cm²a 0.00 kg/cm²a kg/cm²a 9.43 kg/cm²a Low Discharge Pressure Warning Delay Seconds 0 s 30 s 0 s 1. High Discharge Pressure Warning This parameter is used to select the condenser discharge pressure value above which a High Discharge Pressure Warning will be annunciated. The value is measured in the panel pressure units as selected on the Panel Settings screen. 2. High Discharge Pressure Warning Delay This parameter is used to select the period of time for which a high condenser discharge pressure condition must persist before a high warning condition will be annunciated. The value is measured in seconds. 3. Low Discharge Pressure Warning This parameter is used to select the condenser discharge pressure value below which a Low Discharge Pressure Warning will be annunciated. The value is measured in the panel pressure units as selected on the Panel Settings screen. 4. Low Discharge Pressure Warning Delay This parameter is used to select the period of time for which a low condenser discharge pressure condition must persist before a low warning condition will be annunciated. The value is measured in seconds Condenser Control Parameter Units Minimum Maximum Default Schedule Selection Selection See Description 160 GEA Refrigeration North America, Inc. E_806550_2 Generated

161 Control Condenser Sequencer Control Parameters 1. Schedule Selection This parameter is used to select which schedule is currently active in the sequencer. The options are: Schedule 1 Schedule 2 Schedule 3 Schedule Water Pump Lockout Parameter Units Minimum Maximum Default Water Pump Lockout Enabled Water Pump Lockout Start Water Pump Lockout End Selection See Description C 0.00 C 100 C 0.00 C F 32 F 212 F 32 F C 0.00 C 100 C 0.00 C F 32 F 212 F 35.6 F barg 4.16 barg barg barg bara 5.17 bara bara bara PSIG 60.3 PSIG PSIG PSIG PSIA 75.0 PSIA PSIA PSIA Water Pump Lockout Discharge Pressure Override Start kpag 416 kpag 2312 kpag 2312 kpag kpaa 517 kpaa 2413 kpaa 2413 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g 4.24 kg/cm²g kg/cm²g kg/cm²g kg/cm²a 5.27 kg/cm²a kg/cm²a kg/cm²a Water Pump Lockout Discharge Pressure Override End barg 4.16 barg barg barg bara 5.17 bara bara bara GEA Refrigeration North America, Inc. E_806550_2 Generated

162 Control Condenser Sequencer Control Parameters Parameter Units Minimum Maximum Default PSIG 60.3 PSIG PSIG PSIG PSIA 75.0 PSIA PSIA PSIA kpag 416 kpag 2312 kpag 2312 kpag kpaa 517 kpaa 2413 kpaa 2413 kpaa MPaG MPaG MPaG MPaG MPaA MPaA MPaA MPaA kg/cm²g 4.24 kg/cm²g kg/cm²g kg/cm²g kg/cm²a 5.27 kg/cm²a kg/cm²a kg/cm²a Water Pump Lockout Next Device Delay Water Pump Lockout Previous Device Delay Minutes 1 min 30 min 1 min Minutes 1 min 30 min 1 min 1. Water Pump Lockout Enabled This parameter is used to select whether the condenser water pumps are configured to become locked out below a selected temperature value. The options are: Disabled Enabled 2. Water Pump Lockout Start This parameter is used to select the ambient temperature value below which the water pumps will be locked out. The value is measured in the panel temperature units as selected on the Panel Settings screen. 3. Water Pump Lockout End This parameter is used to select the value that the ambient temperature must rise above after the pumps have become locked out before they will be permitted to resume normal operation. The value is measured in the panel temperature units as selected on the Panel Settings screen. 4. Water Pump Lockout Discharge Pressure Override Start This parameter is used to select the condenser discharge pressure above whichthe water pump lockout will be overridden. The value is measured in the panel pressure units as selected on the Panel Settings screen. 5. Water Pump Lockout Discharge Pressure Override End This parameter is used to select the value that the discharge pressure of the condenser must fall below after the water pump lockout has been overridden before the override will end. The value is measured in the panel pressure units as selected on the Panel Settings screen. 162 GEA Refrigeration North America, Inc. E_806550_2 Generated

163 Control Condenser Device Control Parameters 6. Water Pump Lockout Next Device Delay This parameter is used to select the period of time that the condenser will wait after disabling a device during water pump lockout before disabling each subsequent device. The value is measured in minutes. 7. Water Pump Lockout Previous Device Delay This parameter is used to select the period of time that the condenser will wait after enabling a device while exiting water pump lockout before enabling each subsequent device. The value is measured in minutes. 3.4 Condenser Device Control Parameters Control parameters are displayed on the main Condenser screen detailed in Section 2.6.2, Page 39. Below is a list of all control parameters and a brief description of their function Control Parameter Units Minimum Maximum Default Runtime Hours 0h h 0h Number of Starts Unitless Interlock Delay Seconds 3s 20 s 5s High to Low Speed Delay/Two Speed Fan Seconds 2s 240 s 120 s 1. Runtime This parameter is used to display the total time the condenser device has been running. It may be manually changed or reset to zero using the keypad. The value is measured in hours. 2. Number of Starts This parameter is used to display the total number of times the condenser device has been started. It may be manually changed or reset to zero using the keypad. The value is unitless. 3. Interlock Delay This parameter is used to select the period of time for which an interlock fault must persist before a warning condition will be annunciated. The value is measured in seconds. 4. High to Low Speed Delay/Two Speed Fan This parameter is used to select the period of time that a two speed fan device will wait before switching from high to low speed. The value is measured in seconds. Hint! This parameter will only appear on two stage fan devices. GEA Refrigeration North America, Inc. E_806550_2 Generated

164 Control Condenser Device Control Parameters Variable Speed Fan/Variable Speed Pump Hint! These parameters will only appear if the device in question is variable speed. Parameter Proportional Term Integral Term Units Minimum Maximum Default Unitless s/r 1.0 s/r s/r 40.0 s/r Mode Selection See Description Manual Mode Position Percent 0.0 % % 0.0 % % 1. Proportional Term This parameter is used to set the proportional gain for PI control of the device. This value is multiplied by the total error between the actual and desired values. The value is unitless. 2. Integral Term This parameter is used to set the rate at which the PI controller will change its integral gain based on the calculated error over time. The value is measured in samples per Repeat (s/r). 3. Mode This parameter is used to select whether the PI controller will vary the output automatically or if it will be controlled manually through the Manual Mode Position parameter. The options are Auto and Manual. 4. Manual Mode Position This parameter is used to set the desired output of the PI controller while it is operating in manual mode. The value is measured in percent. Hint! This parameter will only appear if the Mode parameter is set to Manual Water cooled condenser Parameter Units Start Condition None Feedback Condenser Unit Warning Delay 164 Minimum Maximum Default 0 = None 1 = Compressor controlled Seconds 0s 300 s 0s GEA Refrigeration North America, Inc. E_806550_2 Generated

165 Control Evaporator Control Parameters Parameter Units Minimum Maximum Default Condenser Unit Stop Delay Seconds 0 s 1800 s 0 s Condenser Flow Switch Warning Delay Seconds 0 s 60 s 30 s 1. Start Condition This Parameter is used to select the start condition of the condenser. 2. Feedback Condenser Unit Delay This Parameter is used to set a delay time. If the compressor is in the state Starting or Running the time will be started. If the time is elapsed before the feedback of the condenser unit is set to true a warning will be annunciated. 3. Condenser Unit Stop Delay This Parameter is used to set a delay time. The time will be started after the compressor state has changed to Stopped. After the time is elapsed the release of the condenser unit will be resettled. 4. Condenser Flow Switch Warning Delay This Parameter is used to set a delay time. If the compressor is in the state Starting or Running the time will be started. If the time is elapsed before the condenser flow switch detects flow a warning will be annunciated. 3.5 Evaporator Control Parameters Control parameters are displayed on the main Evaporator screen detailed in Section 2.7.2, Page 48. Below is a list of all control parameters and a brief description of their function Cooling Parameter Units Minimum Maximum Default Set Point C C C -1 C F F F 30.2 F Set Point Delay Seconds 0 s 300 s 5 s Dead Band Temperature High Warning Offset C 0.00 C 100 C 2.0 C F 0.0 F F 3.6 F C 0.00 C 40.0 C 2.0 C F 0.0 F 72.0 F 5.0 F GEA Refrigeration North America, Inc. E_806550_2 Generated

166 Control Evaporator Control Parameters Parameter Units Minimum Maximum Default Temperature High Warning Delay Seconds 0 s 60 s 0 s Temperature Low Warning Offset C 0.00 C 40.0 C 2.0 C F 0.0 F 72.0 F 3.6 F Temperature Low Warning Delay Seconds 0 s 60 s 0 s 1. Set Point This parameter is used to choose the desired value at which the evaporator zone will attempt to maintain the zone temperature. The value is measured in the panel temperature units as selected on the Panel Settings screen. 2. Set Point Delay This parameter is used to select the period of time that the zone temperature must remain outside the range defined by the dead band parameter before adjustments will be made in the zone control. The value is measured in seconds. 3. Dead Band This parameter is used to define a range above and below the set point within which no action will be taken to adjust the zone temperature. The value is measured in the panel temperature units as selected on the Panel Settings screen. 4. Temperature High Warning Offset This parameter is used to define an offset added to the set point. If the temperature exceeds this value, a warning condition will be annunciated. The value is measured in the panel temperature units as selected on thepanel Settings screen. 5. Temperature High Warning Delay This parameter is used to select the period of time for which a high evaporator temperature condition must persist before a warning condition will be annunciated. The value is measured in seconds. 6. Temperature Low Warning Offset This parameter is used to define an offset subtracted from the set point. If the temperature falls below this value, a warning condition will be annunciated. The value is measured in the panel temperature units as selected on the Panel Settings screen. 7. Temperature Low Warning Delay This parameter is used to select the period of time for which a low evaporator temperature condition must persist before a warning condition will be annunciated. The value is measured in seconds. 166 GEA Refrigeration North America, Inc. E_806550_2 Generated

167 Control Evaporator Control Parameters Fan Cycling Parameter Units Minimum Maximum Default Fan Cycling Enabled Selection See Description Fan Cycling On Delay Minutes 0.0 min min 20.0 min an Cycling Off Delay Minutes 0.0 min min 20.0 min Fan Cycling Agitation Timer Minutes 0.0 min min 2.0 min Set Point Delay While Agitating Minutes 0.0 min min 1.0 min 1. Fan Cycling Enabled This parameter is used to select how the zone fans will operate while the zone is satisfied. The options are: Disabled While this option is selected, the fan will run constantly while the zone is satisfied. Enabled While this potion is selected, the fans will run based on the fan cycling parameters described below. 2. Fan Cycling On Delay This parameter is used to select the period of time that the zone fans will remain off before beginning cycling. The value is measured in minutes. 3. Fan Cycling Off Delay This parameter is used to select the period of time that the zone fans will continue to run after the zone temperature falls below the lower edge of the dead band range. The value is measured in minutes. 4. Fan Cycling Agitation Timer This parameter is used to select the periods of time that the fans will run to circulate the air in the zone. After this time period has elapsed, the fans will remain off for the same period of time before running again. The value is measured in minutes. 5. Set Point Delay While Agitating This parameter is used to select the period of time that the zone temperature set points will be ignored while the zone fans are running to circulate the air. The value is measured in minutes Defrost Parameter Units Minimum Maximum Default Liquid Solenoid Runtime Defrost Liquid Solenoid Valve Runtime Until Defrost Selection See Description Minutes 0 min min 120 min GEA Refrigeration North America, Inc. E_806550_2 Generated

168 Control Evaporator Control Parameters Parameter Units Minimum Maximum Default Liquid Solenoid Valve Runtime Minutes 0 min min 0 min Pump Down Minutes 0.0 min min 20.0 min Hot Gas Minutes 0.0 min min 20.0 min Bleed Minutes 0.0 min min 20.0 min Fan Delay Minutes 0.0 min min 20.0 min Post Defrost Temperature Warning Delay Minutes 0.0 min min 20.0 min Defrost Group Number Unitless Daily Defrost 1 Daily Defrost 2 Daily Defrost 3 Daily Defrost 4 Daily Defrost 5 Defrost Termination By Temperature Defrost Termination Temperature Selection See Description Selection See Description Selection See Description Selection See Description Selection See Description Selection See Description C 0.00 C 325 C 75.0 C F 32.0 F 617 F F 1. Liquid Solenoid Runtime Defrost This parameter is used to enable the Liquid Solenoid Valve Runtime Defrost control. The options are Enabled and Disabled. 2. Liquid Solenoid Valve Runtime Until Defrost This parameter is used to select the period of time that the liquid solenoid valve will remain open before initiating a defrost cycle. This parameter will only be visible if the Liquid Solenoid Runtime Defrost parameter is set to Enabled. The value is measured in minutes. 3. Liquid Solenoid Valve Runtime This parameter is used to display the amount of time that the zone s liquid valve has run since the previous defrost. The value is measured in minutes. 168 GEA Refrigeration North America, Inc. E_806550_2 Generated

169 Control Evaporator Control Parameters 4. Pump Down This parameter is used to select the period of time that the zone will remain in the pump down stage during defrost. The value is measured in minutes. 5. Hot Gas This parameter is used to select the period of time that the zone will remain in the hot gas stage during defrost. The value is measured in minutes. 6. Bleed This parameter is used to select the period of time that the zone will remain in the bleed stage during defrost. The value is measured in minutes. 7. Fan Delay This parameter is used to select the perios of time that the zone will remain in the fan delay stage during defrost. The value is measured in minutes. 8. Post Defrost Temperature Warning Delay This parameter is used to select the period of time for which temperature warning annunciations will be disabled following a defrost cycle. The value is measured in minutes. 9. Defrost Group Number This parameter is used to group evaporator zones based on their proximity to one another. Zones that share an area will have the same group number. Only one evaporator zone per group may be in defrost mode at any given time. 10. Daily Defrost 1 This parameter is used to select the a specific time when the zone will be instructed to enter a defrost cycle. This feature may be disabled by setting the parameter to Disabled. 11. Daily Defrost 2 This parameter is used to select the a specific time when the zone will be instructed to enter a defrost cycle. This feature may be disabled by setting the parameter to Disabled. 12. Daily Defrost 3 This parameter is used to select the a specific time when the zone will be instructed to enter a defrost cycle. This feature may be disabled by setting the parameter to Disabled. 13. Daily Defrost 4 This parameter is used to select the a specific time when the zone will be instructed to enter a defrost cycle. This feature may be disabled by setting the parameter to Disabled. 14. Daily Defrost 5 This parameter is used to select the a specific time when the zone will be instructed to enter a defrost cycle. This feature may be disabled by setting the parameter to Disabled. 15. Defrost Termination By Temperature This parameter is used to select whether the zone will end a defrost cycle once the evaporator coil temperature exceeds value of the Defrost Termination Temperature Parameter. Hint! This parameter requires the use of a surface mount temperature sensor which is placed on the coldest section of the evaporator coil associated with the zone. GEA Refrigeration North America, Inc. E_806550_2 Generated

170 Control Evaporator Control Parameters 16. Defrost Termination Temperature This parameter is used to select the temperature value of the evaporator coil above which a defrost cycle will automatically end. It will only be visible if the Defrost Termination By Temperature Parameter is set to Enabled. The value is measured in the panel temperature units as selected on the Panel Settings screen Suction Valve Settings Parameter Units Minimum Maximum Default Suction Valve Open During Satisfied Stages Selection See Description 1. Suction Valve Open During Satisfied Stages This parameter is used to select whether the zone suction valve will remain open while the zone is satisfied. The options are: Enabled Disabled Invert Solenoid Output Parameter Units Minimum Maximum Default Liquid Suction Hot Gas Soft Hot Gas Bleed Fans Selection See Description Selection See Description Selection See Description Selection See Description Selection See Description Selection See Description 1. Liquid This parameter is used to select whether the Liquid solenoid output is inverted. The options are Disabled, where the solenoid functions normally, and Enabled, where the solenoid output is inverted. 2. Suction This parameter is used to select whether the Suction solenoid output is inverted. The options are Disabled, where the solenoid functions normally, and Enabled, where the solenoid output is inverted. 3. Hot Gas This parameter is used to select whether the Hot Gas solenoid output is inverted. The options are Disabled, where the solenoid functions normally, and Enabled, where the solenoid output is inverted. 170 GEA Refrigeration North America, Inc. E_806550_2 Generated

171 Control Evaporator Control Parameters 4. Soft Hot Gas This parameter is used to select whether the Soft Hot Gas solenoid output is inverted. The options are Disabled, where the solenoid functions normally, and Enabled, where the solenoid output is inverted. 5. Bleed This parameter is used to select whether the Bleed solenoid output is inverted. The options are Disabled, where the solenoid functions normally, and Enabled, where the solenoid output is inverted. 6. Fans This parameter is used to select whether the Fans solenoid output is inverted. The options are Disabled, where the solenoid functions normally, and Enabled, where the solenoid output is inverted Evaporator for Chiller Parameter Units Minimum Maximum Default Secondary Refrigerant Secondary Refrigerant Feedback Flow Delay Secondary Refrigerant Pump Stop Delay Secondary Refrigerant Feedback Pump Delay Seconds 0 s 999 s 60 s Seconds 0 s 999 s 5 s Seconds 0 s 999 s 60 s Liquid Feed Set Point Percent 0.0 % % 18.0 % Proportional Term None Integral Term s/r 1.0 s/r s/r 40.0 s/r Dead Band Percent 0.0 % 10.0 % 2.0 % Maximum Level Percent 0.0 % % 50.0 % High Level Warning Delay (Liquid Feed Maximum Level Warning Delay) High Level Shutdown Delay (Liquid Feed Maximum Level Shutdown Delay) Seconds 0 s 60 s 5 s Seconds 0 s 60 s 15 s GEA Refrigeration North America, Inc. E_806550_2 Generated

172 Control Evaporator Control Parameters Parameter Units Minimum Maximum Default Outlet Temperature High Outlet Temperature Warning C -75 C 100 C 100 C High Outlet Temperature Warning Timer Seconds 0 s 300 s 120 s Low Outlet Temperature Shutdown C -60 C 200 C -20 C Low Outlet Temperature Shutdown Timer Low Outlet Temperature Warning Offset Low Outlet Temperature Warning Start Delay Limitation Outlet Temperature Load Inhibit Offset Limitation Outlet Temperature Force Unload Offset Seconds 0 s 300 s 120 s K 0.0 K 50.0 K 5.0 K Seconds 0 s 300 s 120 s K 0.1 K 50.0 K 10.0 K K 1.0 K 50.0 K 5.0 K 1. Secondary Refrigerant Secondary Refrigerant Feedback Flow Delay This parameter is used to select the amount of time the panel will wait to trigger a Secondary Refrigerant Feedback Flow Warning or Shutdown. The value is measured in seconds. Secondary Refrigerant Pump Stop Delay This parameter is used to select the period of time the pump will continue to run after the compressor has stopped. The value is measured in seconds. Secondary Refrigerant Feedback Pump Delay This parameter is used to select the amount of time the panel will wait to trigger an Secondary Refrigerant Pump Feedback Warning. The value is measured in seconds. 172 GEA Refrigeration North America, Inc. E_806550_2 Generated

173 Control Evaporator Control Parameters 2. Liquid Feed Set Point This parameter is used to choose the desired value at which the panel will attempt to maintain the liquid level. The value is measured in percent. Proportional Term This parameter is used to set the proportional gain for PI control of the device. This value is multiplied by the total error between the actual and desired values. The value is unitless. Integral Term This parameter is used to set the rate at which the PI controller will change its integral gain based on the calculated error over time. The value is measured in samples per Repeat (s/r). Dead Band This parameter is used to define a range above and below the Set Point within which no action will be taken to adjust the liquid level. The value is measured in percent. Maximum Level This parameter is used to select the Maximum Level. If the liquid level is higher a delay time will be started to trigger a warning or shutdown. The value is measured in percent. High Level Warning Delay (Liquid Feed Maximum Level Warning Delay) This parameter is used to select the period of time for which a Maximum Level condition must persist before a Max Liquid Level Warning condition will be annunciated. The value is measured in seconds. High Level Shutdown Delay (Liquid Feed Maximum Level Shutdown Delay) This parameter is used to select the period of time for which a Maximum Level condition must persist before a Max Liquid Level Shutdown condition will be annunciated. The value is measured in seconds. GEA Refrigeration North America, Inc. E_806550_2 Generated

174 Control Refrigerant Sensor Control Parameters 3. Outlet Temperature High Outlet Temperature Warning If the compressor is running and the outlet temperature exceeds this value for a set time, a High Outlet Temperature Warning will be issued. High Outlet Temperature Warning Timer The period of time before High Outlet Temperature Warning will be issued. Low Outlet Temperature Shutdown If the compressor is running and the outlet temperature exceeds this value for a set time, a Low Outlet Temperature Shutdown will be issued. Low Outlet Temperature Shutdown Timer The period of time before Low Outlet Temperature Shutdown will be issued. Low Outlet Temperature Warning Offset This value is an offset from Low Outlet Temperature Shutdown. If the compressor is starting or running and the outlet temperature exceeds this value, a Low Outlet Temperature Warning will be issued. Low Outlet Temperature Warning Start Delay The period of time after the compressor has started that Low outlet Temperature Warning is ignored. Limitation Outlet Temperature Load Inhibit Offset This annunciation will be triggered if the compressor outlet temperature falls below the set point calculated by adding the value of the Limitation Outlet Temperature Load Inhibit Offset parameter to the Low Outlet Temperature Shutdown parameter. Limitation Outlet Temperature Force Unload Offset This value is an offset from Low Outlet Temperature Shutdown. If outlet temperature goes below this value the compressor will be forced to unload. 3.6 Refrigerant Sensor Control Parameters Control parameters are displayed on OmniData screen detailed in Section 2.4, Page 26. Below is a list of all control parameters and a brief description of their function. One set of parameters is provided for each individual sensor Refrigerant Sensor Hint! The heading of each set of refrigerant parameters will be the name of the associated sensor as entered in the Configuration screen. For further information, refer to Section 2.4, Page GEA Refrigeration North America, Inc. E_806550_2 Generated

175 Control Refrigerant Sensor Control Parameters Parameter Units Minimum Maximum Default Refrigerant Sensor High Warning Enabled Selection See Description Refrigerant Sensor High Warning ppm 0 ppm ppm 20.0 ppm Refrigerant Sensor High Warning Delay Refrigerant Sensor High High Warning Enabled Seconds 0 s 999 s 5 s Selection See Description Refrigerant Sensor High High Warning ppm See Description Refrigerant Sensor High High Warning Delay Refrigerant Sensor High High Shutdown Enabled Refrigerant Sensor High High Shutdown Refrigerant Sensor High High Shutdown Delay Seconds 0 s 999 s 5 s Selection See Description ppm 0 ppm ppm 20.0 ppm Seconds 0 s 999 s 5 s 1. Refrigerant Sensor High Warning Enabled This parameter is used to select whether the sensor is configured to annunciate a high refrigerant warning condition. The options are: Enabled Disabled 2. Refrigerant Sensor High Warning This parameter is used to select the refrigerant level above which a high warning condition will be triggered. It will only appear if the Refrigerant Sensor High Warning parameter is set to Enabled. The value is measured in parts per million. 3. Refrigerant Sensor High Warning Delay This parameter is used to select the period of time for which a high refrigerant warning condition must persist before an annunciation will be triggered. It will only appear if the Refrigerant Sensor High Warning parameter is set to Enabled. The value is measured in seconds. GEA Refrigeration North America, Inc. E_806550_2 Generated

176 Control Compressor Operating Data 4. Refrigerant Sensor High High Warning Enabled This parameter is used to select whether the sensor is configured to annunciate a high high refrigerant warning condition. The options are: Enabled Disabled 5. Refrigerant Sensor High High Warning This parameter is used to select the refrigerant level above which a high high refrigerant warning condition will be triggered. It will only appear if the Refrigerant Sensor High High Warning parameter is set to Enabled. The value is measured in parts per million. Hint! The minimum and maximum values of this parameter vary based on the values of the High Warning and High High Shutdown parameters. The minimum vale of this parameter will be equal to the current value of the high warning parameter, and the maximum value will be equal to the current value of the high high shutdown parameter. 6. Refrigerant Sensor High High Warning Delay This parameter is used to select the period of time for which a high high refrigerant warning condition must persist before an annunciation will be triggered. It will only appear if the Refrigerant Sensor High High Warning parameter is set to Enabled. The value is measured in seconds. 7. Refrigerant Sensor High High Shutdown Enabled This parameter is used to select whether the sensor is configured to annunciate a high high refrigerant shutdown condition. The options are: Enabled Disabled 8. Refrigerant Sensor High High Shutdown This parameter is used to select the refrigerant level above which a high high refrigerant shutdown condition will be triggered. It will only appear if the Refrigerant Sensor High High Shutdown parameter is set to Enabled. The value is measured in parts per million. 9. Refrigerant Sensor High High Shutdown Delay This parameter is used to select the period of time for which a high high refrigerant shutdown condition must persist before an annunciation will be triggered. It will only appear if the Refrigerant Sensor High High Shutdown parameter is set to Enabled. The value is measured in seconds. 3.7 Compressor Operating Data Operating Data is displayed on the main Omni Compressor screen detailed in Section 2.5.1, Page 31. Below is a list of standard operating variables and a brief description of their functions. 176 GEA Refrigeration North America, Inc. E_806550_2 Generated

177 3.7.1 Control Compressor Operating Data Analog Inputs/ Outputs Hint! The assignment of the data points is dependent on the configuration. Check the electrical connection diagram to identify the exact layout of the data points. Value Description Suction Pressure This value displays the reading of the suction pressure transducer. The value is displayed in the current pressure units of the panel. Discharge Pressure This value displays the reading of the discharge pressure transducer. The value is displayed in the current pressure units of the panel. Oil Pressure This value displays the reading of the oil pressure transducer. The value is displayed in the current pressure units of the panel. Oil Filter Pressure This value displays the reading of the oil filter pressure transducer. This point will only be displayed if the oil filter is configured with a single pressure transducer. Depending on configuration options, this may be either an input or output transducer. Oil Filter Inlet Pressure This value displays the reading of the oil filter pressure transducer. This point will only be displayed if the oil filter is configured with both an input and output transducer. The value is displayed in the current pressure units of the panel. Oil Filter Outlet Pressure This value displays the reading of the pressure transducer located at the oil filter outlet valve. This point will only be displayed if the oil filter is configured with both an input and output transducer. The value is displayed in the current pressure units of the panel. Suction Temperature This value displays the reading of the suction temperature sensor. The value is displayed in the current temperature units of the panel. Discharge Temperature This value displays the reading of the discharge temperature sensor. The value is displayed in the current temperature units of the panel. Oil Temperature This value displays the reading of the oil temperature sensor. The value is displayed in the current temperature units of the panel. Oil Separator Temperature This value displays the reading of the oil separator temperature sensor. The value is displayed in the current temperature units of the panel. Capacity Slide Position This value displays the current reading of the capacity slide position sensor. The value is displayed in percent. This point may monitor either a 4-20 ma signal or a potentiometer input. GEA Refrigeration North America, Inc. E_806550_2 Generated

178 Control Compressor Operating Data Value Description Volume Slide Position This value displays the current reading of the volume slide position sensor. The value is measured in percent. This point may monitor either a 4-20 ma signal or a potentiometer input. Primary Slide Position or Swept Volume in % This value displays the current reading of the primary slide position or swept volume. It is used for applications were an analog output module is provided to retransmit the current reading of the primary slide position sensor. The value is measured in percent. The default location for the module is dependent on where the panel was configured. Motor Current This value displays the current reading of the compressor motor current sensor. The value is measured in Amps. It will not appear on a slice if Motor Starter Communication is enabled in the configuration. This point may monitor either a 4-20 ma signal or a current transformer input Standard Calculated Values Hint! These entries in the operating data table are not tied to a default position in the I/O system. They are calculated by the system. Value Description Loop time This value represents the amount of time the system requires to execute all custom logic once and update all inputs and outputs. The value is measured in seconds. Oil Filter Differential This value displays the calculated differential in the oil filter. The calculation used is dependent on the compressor s configuration. The value is measured in the current pressure units of the panel. Oil Differential This value displays the calculated oil differential in the compressor. The calculation used is dependent on the compressor s configuration. The value is measured in the current pressure units of the panel. Motor Current This value displays the value of the motor current as read through the motor starter communication. It will not be visible if Motor Starter communication has not been enabled in the configuration. The value is measured in Amps. Cycle On Timer This value displays the remaining time before the compressor will restart automatically. It will only be visible if Automatic Start/Stop is enabled in the configuration. The value is measured in seconds. 178 GEA Refrigeration North America, Inc. E_806550_2 Generated

179 Control Compressor Operating Data Value Description Cycle Off Timer This value displays the remaining time before the compressor will stop automatically. It will only be visible if Automatic Start/Stop is enabled in the configuration. The value is measured in seconds. Motor Start to Start Timer This value displays the remaining time that must elapse after the compressor is started before it may be safely started again. The value is measured in seconds. Motor Stop To Start Timer This value displays the remaining time that must elapse after the compressor is stopped before it may be safely started again. The value is measured in seconds. Oil Drain Timer This value displays the remaining time that the compressor must wait for oil to drain from the system before the compressor may be safely started. The value is measured in seconds. Accumulated Run Time Hours This value displays the total amount of time the compressor has run. The value is measured in hours. Capacity Percentage This value displays the current reading of the capacity slide. The value is measured in percent. kwh Demand This value displays the currently estimated kwh demand of the compressor. The value is measured in kwh Digital Inputs/ Outputs Hint! The assignment of the data points is dependent on the configuration. Check the electrical connection diagram to identify the exact layout of the data points. Value Description Emergency Stop This input monitors the status of the Emergency Stop switch. It will be energized for normal panel operation. If this input ever becomes de-energized, an Emergency Stop shutdown will be triggered. The states are On or Off. Compressor Interlock This input monitors the status of the compressor run feedback module. It will be energized while the compressor is running, and de-energized while the compressor is stopped. If this input ever becomes de-energized while the compressor is running, or energized while the compressor is stopped, an interlock alarm condition will be triggered. The states are On or Off. GEA Refrigeration North America, Inc. E_806550_2 Generated

180 Control Compressor Operating Data Value Oil Pump Interlock External Unload External Load External Start/Stop Start Permissive Low Oil Level Aux Shutdown #1 Aux Warning Set Point Select Auxiliary Shutdown #2 Description This input monitors the status of the oil pump run feedback module. It will be energized while the oil pump is running, and de-energized while the oil pump is stopped. If this input ever becomes de-energized while the oil pump is running, or energized while the oil pump is stopped, an interlock alarm condition will be triggered. The states are On or Off. This input monitors the status of a remote compressor control device. This module will only be used if the panel is operating in Remote Mode. It will be energized to remotely instruct the compressor to unload, and de-energized at all other times. The states are On or Off. This input monitors the status of a remote compressor control device. This module will only be used if the panel is operating in Remote Mode. It will be energized to remotely instruct the compressor to load, and de-energized at all other times. The states are On or Off. This input monitors the status of a remote compressor control device. This module will only be used if the panel is operating in Remote Mode. It will be energized to remotely instruct the compressor to start, and de-energized to instruct it to stop. The states are On or Off. This input monitors whether the compressor is currently allowed to start. As long as it is energized, the compressor may start normally, otherwise any instruction to start will be ignored. The states are On or Off. This input monitors an oil level float switch. It will be energized for normal operation of the panel, and will only de-energize if the oil level falls below the level of the switch. The states are On or Off. This input monitors a miscellaneous shutdown condition for the compressor. It will be energized for normal panel operation. If this input ever becomes de-energized, a shutdown annunciation will be triggered. The states are On or Off. This input monitors a miscellaneous warning condition for the compressor. It will be energized for normal panel operation. If this input ever becomes de-energized, a warning annunciation will be triggered. The states are On or Off. This input is used to control which set point is currently being used. This module will only be enabled if the compressor is configured for multiple set points. Set point 2 will be enabled if the module is energized, and set point 1 will be enabled if it is de-energized. The states are On or Off. This input monitors a miscellaneous shutdown condition for the compressor. It will be energized for normal panel operation. If this input ever becomes de-energized, a shutdown annunciation will be triggered. The states are On or Off. 180 GEA Refrigeration North America, Inc. E_806550_2 Generated

181 Control Compressor Operating Data Value Aux Warning #2 Compressor Motor Start Oil Pump Motor Start Load Solenoid Unload Solenoid Shutdown Status Ready For Remote Oil Cooling Unloaded Start Oil Separator Heater Warning Status Motor Start To Start Timer Active Description This input monitors a miscellaneous warning condition for the compressor. It will be energized for normal panel operation. If this input ever becomes de-energized, a warning annunciation will be triggered. The states are On or Off. This output activates the starter for the compressor motor. It will energize when the compressor is instructed to start, and will be de-energized at all other times. The states are On or Off. This output activates the starter for the oil pump motor. It will be energized whenever the oil pump is instructed to run, and will be de-energized at all other times. The states are On or Off. This output activates the compressor load solenoid. It will be energized whenever the compressor is loading the solenoid, and will be de-energized at all other times. The states are On or Off. This output activates the compressor unload solenoid. It will be energized whenever the compressor is unloading the solenoid, and will be de-energized at all other times. The states are On or Off. This output signalizes whether the panel has entered a shutdown state. It will be energized for normal panel operation and will de-energize any time a shutdown condition is annunciated. The states are On or Off. This output signalizes whether the compressor is currently permitted to run via external control from a remote device. It will be energized when remote mode is permitted and disabled at all other times. The states are On or Off. This output activates the oil cooing solenoid. It will be energized whenever the oil cooling should be energized as determined by the type of oil cooling system, and de-energized at any other time. The states are On or Off. This output activates the solenoid of the compressor unload cycle. The states are On or Off. This output activates the heater for the oil separator. It will be energized during compressor standstill. The states are On or Off. This output signalizes whether the panel has entered a warning state. It will be energized for normal panel operation and will de-energize any time a warning condition is annunciated. The states are On or Off. This output signalizes whether the motor start to start timer is currently active. It will be energized while the timer is running and de-energized at all other times. The states are On or Off. GEA Refrigeration North America, Inc. E_806550_2 Generated

182 Control Compressor Operating Data Value Green/White Lamp Yellow Lamp Red Lamp Description This output activates the white lamp on the panel light stack. The states are On or Off. This output activates the yellow lamp on the panel light stack. If the panel has annunciated a warning condition, this point will be energized. Otherwise, it will be de-energized. The states are On or Off. This output activates the red lamp on the panel light stack. If the panel has annunciated a shutdown condition, this point will be energized. Otherwise, it will be deenergized. The states are On or Off. 182 GEA Refrigeration North America, Inc. E_806550_2 Generated

183 Control Configuration 3.8 Configuration The configuration is used to set up compressors and other devices for the project. The configuration user interface is detailed in Section 2.14, Page 95. Below is a breakdown of the sections and fields that may be customized in the configuration. A user must be of Admin level in order to modify any of these options Panel Configuration When this tile is clicked a scrollable screen will appear which contains all information pertaining to the project. The information is divided into seven sections, which are detailed below. To return to the tile display, the user must click the Close button in the lower right hand corner of the screen. Project Details fig.104: Project details options 1. Project Number This text box is used to display the GEA project number that corresponds to the project. The number stored in this field will be displayed in the window s title and on the tile displayed in the main options screen. 2. Project Name This text box is used to display the unique name of the project. This field will only be utilized in certain countries. 3. Drawn By Initials This text box is used to display the initials of the drafter who created the project drawings. 4. Approved By Initials This text box is used to display the initials of the engineer responsible for overseeing the project. GEA Refrigeration North America, Inc. E_806550_2 Generated

184 Control Configuration 5. Customer Name 1 This text box is used to display the primary name of the organization that is to receive the product. The contents of this field will be displayed in the window s title and on the tile displayed in the main options screen. 6 Customer Name 2 This text box is used to display supplemental information regarding the name of the customer may be filled in here. This information will not appear in the title bar. 7. Customer Location 1 This text box is used to display basic information regarding the location of the customer to receive the product. 8. Customer Location 2 This text box is used to display supplemental information regarding the location of the customer may be entered here. 9. Customer Location 3 This text box is used to display supplemental information regarding the location of the customer may be entered here. 10. Customer PO This text box is used to display customer provided purchase order information. 11. Manufacturer This drop down list is used to select the location where the panel was constructed. The options are: York Suzhou Berlin 12. Product Type This drop down list is used to select the type of package controlled by the panel. This option may not be modified in the field. Some common options include: SP1 SP2 SPduo 184 GEA Refrigeration North America, Inc. E_806550_2 Generated

185 Control Configuration 13. Language This drop down list is used to select the language the panel will use. Changing this value will convert all text strings on the panel to the chosen language. 14. Refrigerant This drop down list is used to select the refrigerant used by the system. Some common options include: R717 (Ammonia) R744 (Carbon Dioxide) R290 (Propane) Panel Details fig.105: Panel details options 1. Panel Name This text box is used to display the panel s name. 2. Panel Type This drop down list is used to select the function the panel. This option may not be modified in the field. The options are: New Package This option indicates that the panel is intended for use on a new compressor package. Retrofit This option indicates that the panel is intended to replace an existing panel. Remote This option indicates that the panel is intended to house additional I/O and does not contain a processor. Control is handled through another GEA Omni panel. Satellite This option indicates that the panel is configured as a remote access point for the rest of the system, allowing other panels to be viewed and controlled from a separate location. 3. Auxiliary Shutdown This check box is used to select if the panel will be equipped with a custom I/O shutdown point. The text box displayed to the right of the check box displays the delay that will elapse before the annunciation is triggered. GEA Refrigeration North America, Inc. E_806550_2 Generated

186 Control Configuration 4. Auxiliary Warning This check box is used to select if the panel will be equipped with a custom I/O warning point. The text box displayed to the right of the check box displays the delay that will elapse before the annunciation is triggered. 5. Auxiliary Shutdown Text This is used to display the text string that will appear whenever the Auxiliary Shutdown is triggered. 6. Auxiliary Warning Text This is used to display the text string that will appear whenever the Auxiliary Warning is triggered. 186 GEA Refrigeration North America, Inc. E_806550_2 Generated

187 Control Configuration Compressor Configuration Touching a tile corresponding to a compressor will bring up a scrollable dialog box containing the configuration options of the chosen compressor. The options in this box are divided into nine sections, which are detailed below. To return to the tile display, the user must click the Close button in the lower right hand corner of the window. Package Details fig.106: Package details options 1. Compressor Name This text box is used as the name of the compressor. The name in this field will be displayed on the compressor tile on the main options screen. 2. Compressor This drop down list is used to select the type of compressor the package contains. The options are: Screw Recip Centrifugal GEA Refrigeration North America, Inc. E_806550_2 Generated

188 Control Configuration 3. Application This drop down list is used to select the function of the compressor. The options are: Standard / High Stage Booster / Low Stage Swing Heat Pump 4. Brand This drop down list is used to select the compressor s manufacturer information. 5. Series This drop down list is used to select the series of the compressor. The options that will appear in this box are dependent on the selected manufacturer. 6. Vi Mode This drop down list is used to select the type of variable Vi control of the compressor. The options are: Fixed Continuous Variable Step Variable 7. Vi Position Sensor This drop down list is used to select the type of position sensor for monitoring the position of the VI, Volume or Secondary Slide. If the compressor is fixed Vi, the only available option will be None. This option may not be modified in the field. 8. Model This drop down list is used to select the specific model number associated with the compressor. The options that will appear in this box are dependent on the selected series and manufacturer. Furthermore, if the selected manufacturer is Grasso, the field will be split into three separate drop-down lists instead of one and a second drop down list will appear in the right column which. In this situation, changes in any drop down list will trigger a matching change in the other list. This option may only be modified in the field for certain compressor brands and series. 9. Primary Slide Control Devices This drop down list is used to select the type of device that will control the package s primary capacity slide valve. This option may only be modified in the field for certain compressor brands and series. The options are: Dual Solenoids Single Solenoids 188 GEA Refrigeration North America, Inc. E_806550_2 Generated

189 Control Configuration 10. Primary Slide Position Sensor This drop down list is used to select the type of sensor that monitors the current position of the capacity slide valve. The options are dependent on the brand and series of the compressor. 11. Process Temperature This drop down list is used to select where the compressor is equipped with process temperature sensors. The options are: None Inlet Temperature Outlet Temperature Both 12. Pump Down This drop down list is used to select when the compressor will enter Pump Down mode. In Pump Down mode the compressor will be used to evacuate refrigerant from a chiller. The options are: Disabled Manual Auto 13. Suction Filter Combo Solenoid This drop down list is used to enable control of the suction filter combo solenoid. Most GEA compressors will use this control. The options are: None Normally Open Normally Closed 14. Double Balance Piston Pressure Transducer This drop down list is used to select the range of the pressure transducer associated with the double balance piston. 15. Remote Start Stop This check box is used to select if the panel is equipped with an input to remotely start or stop the compressor. 16. Remote Control I/O This check box is used to select if the panel is equipped with digital modules for remote control of the compressor. 17. VTrac This check box is used to select whether the package is equipped with a VTrac Vibration monitor. GEA Refrigeration North America, Inc. E_806550_2 Generated

190 Control Configuration 18. Set Point Selection Digital Input This check box is used to select if the panel is equipped with a digital input to control the current control set point remotely. 19. Motor Current and Capacity Output This check box is used to select if the panel is equipped with analog outputs to retransmit the compressor motor current and capacity. 20. Permissive Start This check box is used to select if the panel is equipped with a digital input which must be energized to allow the compressor to start. 21. Hot Gas Bypass This check box is used to enable control of the Hot Gas Bypass solenoid, which is typically used to keep the machine running under low load conditions. 22. Starting Bypass This check box is used to enable control of a suction to discharge bypass solenoid so as to reduce the torque required to start the compressor. 23. Hall Spring Slide Valve Return This check box is used to select if the compressor is equipped with a spring to force the slide valve back to zero if the compressor is stopped without unloading. This option is only enabled for Hall compressor retrofit applications. 24. Fast Unload This check box is used to enable control of the fast unload solenoid for retrofit applications. 25. Double Balance Piston Output This check box is used to enable control of a double balance piston solenoid. This option is only used for HE series compressors. This option may not be modified in the field. 190 GEA Refrigeration North America, Inc. E_806550_2 Generated

191 Control Configuration Oil System Details fig.107: Oil system details options 1. Oil Pump This drop down list is used to select the type of oil pump on the package. 2. Oil Pressure Location This drop down list is used to select the location where the oil pressure is measured. This option is only available on GEA compressors. This option may not be modified in the field. 3. Oil Cooling This drop down list is used to select the type of oil cooling on the package. 4. Oil Drain Minimum Timer This text box is used to enter the minimum amount of time, measured in minutes, that the compressor must remain off after the oil pump is stopped before it is allowed to start again. 5. Oil Differential Pressure Max Filter This text box is used to enter the maximum value for the oil differential pressure parameters. The value is entered in PSID. This section is a subsection of the oil system. It contains four individual fields relating to the operation of the oil filter. GEA Refrigeration North America, Inc. E_806550_2 Generated

192 Control Configuration 6. Oil Filter Pressure Transducer This drop down list is used to select whether the filter is equipped with pressure transducers and where they are located. The options are: None Inlet Outlet Both 7. Oil Filter Inlet Scaling This drop down list is used to select the range of the pressure transducer at the oil filter inlet. This field will be disabled if no inlet oil pressure transducer is present. 8. Oil Filter Pressure Drop Max This text box is used to enter the maximum value for the oil filter pressure parameters. The value is entered in PSID. 9. Oil Filter Outlet Scaling This drop down list is used to select the range of the pressure transducer at the oil filter outlet. This field will be disabled if no outlet oil pressure transducer is present. Temperature This section is a subsection of the oil system. It contains two fields relating to temperature monitoring in the oil pump system. 10. Oil Temperature Min This text box is used to set the minimum value which may be assigned to the oil temperature parameters. The value is measured in degrees Fahrenheit. 11. Oil Temperature Max Separator This text box is used to set the maximum value which may be assigned to the oil temperature parameters. The value is measured in degrees Fahrenheit. This section is a subsection of the oil system. It contains five fields relating to the operation of the oil separator. 12. Oil Separator Heaters This drop down list is used to set the number of heaters that installed on the oil separator. 13. Oil Separator Temperature Probe This check box is used to select whether the oil separator is equipped with a dedicated temperature sensor or not. 192 GEA Refrigeration North America, Inc. E_806550_2 Generated

193 Control Configuration 14. Oil Heater On During Run This check box is used to select whether the heater is permitted to activate while the compressor is running. 15. Heater Voltage This drop down list is used to select the voltage required by the oil separator heater. This option may not be modified in the field. 16. Heater Power Level This drop down list is used to select the power required to run the oil separator heater. This option may not be modified in the field. This section is a subsection of the oil system. It contains two fields relating to the level monitoring in the oil pump system. 17. High Oil Level This check box is used to select whether the system is equipped with a high oil level float switch. 18. Low Oil Level This check box is used to select whether the system is equipped with a low oil level float switch. Motor fig.108: Motor options GEA Refrigeration North America, Inc. E_806550_2 Generated

194 Control Configuration 1. Drive This drop down list is used to select the type of motor used in the package. 2. Motor Current Input This drop down list is used to select the type of the current input for the motor 3. Motor Speed Input This check box is used to select if the panel is equipped with an input to control motor spe 4. Motor Speed Maximum This text box is used to enter the maximum allowable speed for the compressor motor. This option is only used if the compressor is equipped with a variable speed motor. The value is entered in rpm. 5. Motor RPM for Fixed Speed This text box is used to enter the desired speed for the compressor motor. This option is only used if the compressor is equipped with a fixed speed motor. The value is entered in rpm. 6. Motor Speed Minimum This text box is used to enter the minimum allowable speed for the compressor motor. This option is only used if the compressor is equipped with a variable speed motor. The value is entered in rpm. 7. Min Motor Start To Start Delay This text box is used to set the minimum amount of time after it has started, measured in minutes, that the motor must wait before starting again. 8. Motor Starter Communication Enabled This check box is used to enable the direct control of a Benshaw motor starter using serial Modbus. 9. Power Calculation This drop down list is used to select how the motor s power is calculated. The options are: None Motor Current Input Direct Analog Input 10. CT Location This drop down list is used to select where on the package the current transformer is located. This option may not be modified in the field. 11. Motor Space Heater This is used to select the voltage required by the motor heater, if available. This option may not be modified in the field. 12. Package Mounted Starter This is used to select whether a motor starter is mounted on the package. 194 GEA Refrigeration North America, Inc. E_806550_2 Generated

195 Control Configuration Remote Set Point fig.109: Remote Set Point Options 1. Remote Set Point This drop down list is used to select which function, if any, is to be controlled through the use of a remote device such as a PLC. 2. Remote Pressure Scaling This drop down list is only used if the pressure control for the package is being handled remotely. It is used to select the range for the pressure. Suction fig.110: Suction options 1. Suction Pressure Scaling This is used to select the range of the suction pressure transducer. 2. Suction Pressure Max This is used to select the maximum value that may be assigned to the suction pressure parameters of the compressor. The value is measured in PSIG. 3. Suction Temperature Max This is used to select the maximum value that may be assigned to the suction temperature parameters of the compressor. The value is measured in degrees Fahrenheit. Discharge GEA Refrigeration North America, Inc. E_806550_2 Generated

196 Control Configuration fig.111: Discharge options 1. Discharge Pressure Scaling This drop down list field contains a drop down list which is used to select the range of the discharge pressure transducer. 2. Discharge Pressure Max This text box is used to select the maximum value that may be assigned to the discharge pressure parameters of the compressor. The value is measured in PSIG. 3. Discharge Temperature Max This text box is used to select the maximum value that may be assigned to the discharge temperature parameters of the compressor. The value is measured in degrees Fahrenheit. Economizer Details fig.112: Economizer details options 1. Economizer This drop down list is used to select the type of economizer the package is equipped with, if one exists. 2. Economizer Pressure This drop down list is used to select the range of the economizer pressure sensor, if one exists. 3. Economizer Temperature This check box is used to select whether the economizer is equipped with a dedicated temperature sensor. 196 GEA Refrigeration North America, Inc. E_806550_2 Generated

197 Control Normal Operating States 3.9 Normal Operating States This section details the four normal compressor states which the compressor may be in while a shutdown condition has not been annunciated Stopped Description This mode of operation indicates that the compressor is not running and automatic start is disabled. While the panel is in this mode, the red STOP button will be solidly illuminated Starting Description This mode of operation indicates that the compressor is in the process of starting. During this period, the compressor will unload to its minimum position. The compressor will remain in this mode as long as the conditions required for the compressor to start are not met and the compressor has not entered a shutdown condition. While the panel is in this mode, the green START button will be blinking. The starting sequence follows the steps displayed below: 1. Check Oil Pump Circulation (optional) During this step, the panel will check that the oil temperature is greater than or equal to the value of the Oil Pump Circulation Temperature Set Point. If the oil temperature does not meet this condition, the oil pump will run to attempt to bring the temperature reading up to the appropriate value. If the temperature has not reached the selected value after a period of time specified in the Oil Pump Circulation Shutdown Timer parameter, a shutdown will be annunciated. This step will only be displayed if the Oil Pump Circulation Mode parameter is set to Temperature. 2. Check Drive Conditions During this step, the panel will check that the time periods specified for example in the Motor Start To Start Timer and Motor Stop To Start Timer parameters have elapsed. 3. Check Oil Drain Timer During this step, the panel will check whether the compressor must be drained of oil before being permitted to start. If the oil must be drained, the compressor will wait until the time period specified in the Oil Drain Timer parameter has elapsed. 4. Check Control Signal Cycling During this step, the panel will check the conditions of the compressor to ensure that the control value is in a valid state to start. This step will only be displayed if the Automatic Start Stop parameter is set to Enabled. 5. Check Permissive Start During this step, the panel will wait for the permissive start signal to become energized. 6. Check Pump Down Build To Pressure During this step, the compressor will wait until the compressor suction pressure has risen to an acceptable value. This step will only be displayed if the Pump Down Mode is set to Automatic in the configuration. 7. Check Discharge Check Valve During this step, the panel will check to ensure that the motorized discharge check valve, if applicable, has opened within an acceptable period of time. GEA Refrigeration North America, Inc. E_806550_2 Generated

198 Control Additional Operating States 8. Check Slide Position During this step, the panel will ensure that the position of the capacity slide is below the value of the Capacity Slide Allowed To Start parameter. 9. Retrofit Oil Drain Input Energized During this step, the panel will wait for the compressor Oil Drain Input to become energized. This step will only be displayed if the compressor Brand is set to a Hall with Internal/No Pump in the configuration. 10. Check Prelube Timer (optional) During this step, the oil pump will be run for a period of time specified in the Oil Pump Prelube Timer parameter. This step will not be displayed if the compressor is set to a Grasso in the configuration. 11. Check Oil Differential During this step, the panel will check to ensure that the oil differential pressure is at an acceptable value. 12. Send Motor Start Signal During this step, the panel will energize the compressor motor starter output. 13. Check Interlock During this step, the panel will check to ensure that the motor starter interlock has become energized within an appropriate amount of time and that the motor current reading is at an acceptable value Running Description This mode of operation indicates that the compressor has successfully started. As long as it remains in this mode, the compressor will operate normally as dictated by the capacity control parameters. While in this mode, the green START button will be solidly illuminated Stopping Description This mode of operation indicates that the compressor is in the process of stopping. During this period, the compressor will unload to its minimum position before stopping the compressor. While the panel is in this mode, the STOP button will be blinking. The stopping sequence follows the steps displayed below: 1. Check Slide Position During this step, the panel will ensure that the position of the capacity slide is below the value of the Capacity Slide Allowed To Start parameter. 2. Send Motor Stop Signal During this step, the panel will send the command to stop the compressor. 3. Check Interlock During this step, the panel will check to ensure that the motor starter interlock has become de-energized within an appropriate amount of time and that the motor current reading is at an acceptable value Additional Operating States This section details additional compressor states which may occur during operation. 198 GEA Refrigeration North America, Inc. E_806550_2 Generated

199 Control Screw Compressor Capacity Control Illegally Started This state will occur if the compressor interlock is energized or motor current is received while the compressor should be stopped. Shutdown This state will occur if a shutdown annunciation associated with the compressor in question is triggered. For more information of specific shutdown annunciations, refer to Section 4.1.1, Page 207. Warning This state will occur if a warning annunciation associated with the compressor in question is triggered. For more information of specific warning annunciations, refer to Section 4.2, Page Screw Compressor Capacity Control Movement of the compressor slide valve and the resulting change in capacity is done via a time-proportioning scheme. The Control Signal Parameter determines which variable the compressor uses to control capacity. The capacity control parameters also allow the operator to select between multiple set points and set values for the associated dead bands, and proportional bands. The capacity control algorithms determine the proper load or unload pulse width. The sum of the dead band and proportional band defines a range above and below the set point outside of which load and unload pulses will be continuous. If the control signal falls within this range but remains outside the range above and below the set point defined by the dead band, then the duration of the capacity control pulses will begin to decrease. As long as the control signal remains within the range defined by the dead band, all capacity control pulses will stop Forward and Reverse Capacity Control may be either forward or reverse acting, as described below. Which type of control is used is dependent on the application of the compressor. Typically, if the compressor is controlled on discharge pressure or slide valve position, the logic will be reversed. In all other applications, the logic will be forward acting. The graphs below display a visual representation of both types of capacity control. Forward Forward acting capacity control manages the compressor control pulses via a time-proportioning scheme, as illustrated below. GEA Refrigeration North America, Inc. E_806550_2 Generated

200 Control Screw Compressor Capacity Control fig.113: CV SP DB PB PP LP UP LD UL Forward acting capacity control Control Value Set point Dead Band Proportional Band Pulse Period Load Pulse Unload Pulse Compressor Loading Compressor Unloading If the value of the control signal exceeds the set point, the compressor will use load pulses to move the slide valve. Conversely, if the value of the control signal falls below the set point, the compressor will use unload pulses to move the slide valve. Reverse Reverse acting capacity control manages the compressor control pulses via a time-proportioning scheme, as illustrated below. 200 GEA Refrigeration North America, Inc. E_806550_2 Generated

201 Control Variable Vi fig.114: CV SP DB PB PP LP UP LD UL Reverse acting capacity control Control Value Set point Dead Band Proportional Band Pulse Period Load Pulse Unload Pulse Compressor Loading Compressor Unloading If the value of the control signal exceeds the set point, the compressor will use unload pulses to move the slide valve. Conversely, if the value of the control signal falls below the set point, the compressor will use load pulses to move the slide valve Variable Vi GEA Grasso compressors may be configured for continuous variable Vi control. The type variable Vi control used in a given project is dependent on the manufacturer and model of the compressor. These options are set in the Package Details section of the Compressor Configuration Operating Modes 1. Automatic In this operation mode, Vi control will be handled automatically by the panel without user input. 2. Manual In this operation mode, the compressor capacity is controlled directly by the operator while Vi control is handled automatically by the panel. GEA Refrigeration North America, Inc. E_806550_2 Generated

202 Control Variable Vi Types of Vi Control Systems GEA Grasso Compressors use one of two different systems for combined Vi partial load control. All GEA Vi systems utilize an optimum Vi slide position which is calculated based on the type of refrigerant in use, the operating mode of the compressor and the current Capacity Slide Position using a proprietary formula. 1. Parallel Slide (PS) System This type of control is used by compressors in the SH family (types C, D, E and G) and the MC family (types H, L, M and N). It utilizes a pair of valves, the capacity slide and the Vi slide. These valves are placed in parallel with each other and may be adjusted independently. SH family compressors are equipped with a single position sensor which is used to monitor the capacity slide, while MC family compressors utilize a pair of position sensors to monitor both the capacity slide and the Vi slide. 2. Tandem Slide (TS) System This type of control is used for compressors in the LT family (types P, R, S, T, V, W, Y, Z, XA, XB, XC, XD, XE and XF) and the new M family (types HM, LM, MM and NM). It utilizes a pair of slide valves, a primary slide and a secondary slide, which are placed one in front of the other in the same cavity. To change the swept volume for the compressor, the primary slide will first load up to a maximum of the calculated optimum position, after which the secondary slide will be varied to control the swept volume. Once the maximum swept volume is reached, both valves will move together to control the Vi. The compressor is equipped with a single position sensor on the primary slide. A second position sensor on the secondary slide is optional. 3. Vi Slide only with speed control This type of control is used for compressors in the MC family (types H, L, M and N) that have no parallel slide installed. It utilizes a pair of valves and the Vi slide which are placed on the compressor housing directly. These compressors are equipped with a single position sensor which is used to monitor the Vi slide Combined Vi Partial Load Control GEA Grasso compressors may be configured for continuous variable Vi control. The type variable Vi control used in a given project is dependent on the manufacturer and model of the compressor. These options are set in the Package Details section of the Compressor Configuration. 1. SH Family The Vi control of the SH Family of compressors is accomplished using a series of two parallel slides that are operated independently to maintain the desired Vi and capacity of the compressor. The capacity slide is used to adjust the capacity of the compressor to maintain the desired control value set point and is completely independent of the Vi slide. The Vi slide is used to maintain the optimum Vi for the current operating conditions. The Vi slide is loaded or unloaded based upon a calculated value that is a function of the current optimum Vi setting and high and low Vi limits of the compressor. This calculated optimum Vi is displayed on the compressor tile in the form X.X Vi. If the optimum Vi for the compressor is below the midpoint of the Vi range, the Vi slide is loaded. Conversely, if the optimum Vi is above the midpoint of the Vi range, the Vi slide is unloaded.the Vi slide is loaded or unload in this manner when the compressor is running. There is no positional feedback from the Vi slide, subsequently, there is no value displayed value for the Vi slide valve on SH Family compressors. 202 GEA Refrigeration North America, Inc. E_806550_2 Generated

203 Control Variable Vi 2. MC Family The Vi control of MC Family compressors is accomplished using a series of two parallel slides that are operated simultaneously maintain the desired Vi and capacity of the compressor. Each slide operates independently and has its own position indicator and proportional controller mechanism. The capacity slide is used to adjust the capacity of the compressor to maintain the desired control value set point and is completely independent of the Vi slide. The Vi Slide is used to maintain the optimum Vi for the current operating conditions. The optimum position of the Vi Slide is a calculated value that is a function of the current optimum Vi setting and the current primary slide valve reading. The physical position of the Vi slide is displayed as Volume Slide Position, which appears on the Operating Data table as a percent. The GEA Omni is programmed to proportionally load or unload the Volume slide as needed until its percentage falls within a range of the calculated optimum Vi percentage defined by the Vi Deadband parameter, at which point the compresor is considered to be operating at the optimum Vi Setting. GEA Refrigeration North America, Inc. E_806550_2 Generated

204 Control Variable Vi 3. LT Family The Vi control LT Series compressors is accomplished using two slides that operate in tandem with one another to simultaneously maintain the desired Vi and capacity of the compressor. To achieve the desired Vi setting, the primary slide is moved initially, with adjustments to the secondary slide being carried out afterward to maintain the optimal Vi setting. There are three Vi Modes for LT Family compressors. The current mode the compressor is operating in determines which slide will be moved to control capacity and which slide will be used to achieve the desired Vi setting. The calculated optimum Vi is displayed on the Compressor tile. Mode #1 In this Vi mode, the primary slide is moved to control the capacity of the machine and the secondary slide is kept unloaded. The secondary of the compressor in Mode #1 is therefore a function of the movement of the primary slide in order to maintain the desired suction pressure or process temperature setpoint. The primary slide is used to control the capacity of the machine from completely unloaded up to a position where the optimum Vi for the operating conditions is located. If the machine is attempting to load and the primary slide reading exceeds the calculated primary slide position for the optimum Vi, the compressor will transtion from Mode #1 to Mode #2. Mode #2 While in Mode #2, the primary slide will only be moved to correct for changes in the calculated primary slide position. Adjustments in capacity will be handled by the secondary slide. The optimum Vi is constantly recalculated based on the current operating conditions. There is typically no positional feedback from the Vi slide; subsequently, there is no value for the secondary slide valve position for LT Family compressors. When the machine is attempting to load and has initially entered Mode #2 from Mode #1, a thirty second load timer is started. Continous load signals will transition from Mode #2 to Mode #3 in thirty seconds. Short load pulses will take a proportionally longer time to transition because the timer is only permitted to advance for the duration of each pulse. The primary slide reading will increase proportionally over this thirty second period. With this method, the accumulating load signals are used to alter the displayed slide valve reading from the value of the optimum Vi position to 100%. The primary slide reading will be approaching 100% at the same time as the equivalent of thirty seconds of loading elapse. When the timer has accumulated the full thirty seconds, the Vi Mode will transition from Mode #2 to Mode #3, locking the machine at 100%. An unload signal that interrupts the thirty second transition period from Mode #2 to Mode #3 will automatically set a new transition period for the compressor to move from Mode #2 back to Mode #1. This transition timer will be set to a period of time equal to the amount of time that the compressor had been loading while in Mode #2. This method allows the panel to determine a relative position for the secondary slide based on the duration of load pulses. For example, if the compressor has accumulated twelve seconds of Load pulses in Mode #2 and begins unloading, twelve seconds of unload pulses must accumulate prior to returning to Mode #1. Similarly, if the machine is attempting to unload and has initially entered Mode #2 from Mode #3, a thirty second unload timer is started. If a request to unload the compressor continues for a total of thirty seconds, the Vi Mode will transition to Mode #1. A load signal that interrupts the thirty second Mode #2 to Mode #1 transition timer will automatically set a new transition period for the compressor to move from Mode #2 back to Mode #3. This transition timer will be set to a period of time equal to the amount of time that the compressor had been unloading while in Mode #2. This method allows the panel to determine a relative position for the secondary slide based on the duration of unload pulses. For example, if the compressor has accumulated 18 seconds of Unload pulses in Vi Mode #2 and begins loading, 18 seconds of load pulses must accumulate prior to returning to Vi Mode # GEA Refrigeration North America, Inc. E_806550_2 Generated

205 Control Lubrication System Mode #3 In this mode, the primary slide continues to track the value of the optimum Vi and the secondary slide is placed in load to force the compressor to maximum capacity. This ensures the maximum capacity from the compressor while maintaining the optimum Vi setting for the current operating conditions. The capacity slide of the compressor will always be displayed as 100% while operating in Mode #3. While the compressor is in this mode, any unload signal will cause the Vi Mode #3 to transition back to Mode # Lubrication System Full Time For this type of lubrication system, when the compressor is instructed to start, the oil pump will start and run for the period of time defined by the Prelube Timer if applicable. During this prelube period, the oil pump must develop adequate oil pressure so that the oil differential pressure falls within the range defined by the Low Oil Differential Pressure Shutdown and the High Oil Differential Shutdown parameters. In addition, if the capacity slide position is above the Maximum Capacity Slide Allow to Start parameter, the panel will attempt to unload the compressor to a capacity slide position below this parameter. Both of these conditions must be satisfied prior to the panel issuing a compressor start command. The oil pump will stop if the compressor fails to start, but will otherwise run continuously for as long as the compressor is in the running state. Once the compressor is stopped, either normally or due to a shutdown condition, the oil pump will continue to run until the capacity slide has returned to its minimum position. If the compressor was stopped normally, the oil pump will continue to run for a period of time defined by the Oil Pump Postlube Timer if applicable Full Time with No Prelube For this type of lubrication system, when the compressor is instructed to start, the oil pump will start and run to develop a minimum pressure differential. The pressure differential used in this type of system is not user adjustable. Additionally, if the capacity slide position is higher than the value of the Maximum Capacity Slide to Allow Start parameter, the compressor will attempt to unload the capacity slide until the reading falls below the value of the parameter. Once both conditions have been met, the compressor will be permitted to issue a start command. The oil pump will stop if the compressor fails to start, but will otherwise run continuously for as long as the compressor is in the running state. Once the compressor is stopped, either normally or due to a shutdown condition, the oil pump will continue to run until the capacity slide has returned to its minimum position. If the compressor was stopped normally, the oil pump will continue to run for a period of time defined by the Oil Pump Postlube Timer if applicable Startup For this type of lubrication system, when the compressor is instructed to start, the oil pump will start and run for the period of time defined by the Prelube Timer, if applicable. During this prelube period, the oil pump must develop adequate oil pressure so that the oil differential pressure falls within the range defined by the Low Oil Differential Pressure Shutdown and the High Oil Differential Shutdown parameters. In addition, if the capacity slide position is above the Maximum Capacity Slide to Allow Start parameter, the panel will attempt to unload the compressor to a capacity slide position below this parameter. Both of these conditions must be satisfied prior to the panel issuing a compressor start command. Once the compressor enters the running state, the oil pump will be stopped. GEA Refrigeration North America, Inc. E_806550_2 Generated

206 Control IntelliSOC No Pump This option is selected if the compressor is not equipped with an external oil pump. In this situation, the oil pressure differential is maintained by the compressor IntelliSOC An electronic modulating valve is provided to control the oil cooling. The position of the valve is based on the discharge or oil temperature. The desired temperature is an operator-adjustable parameter. The modulating valve is held closed for two seconds after the shutoff solenoid is energized to allow pressure to build against the control valve. The modulating valve will calibrate itself every time the compressor is successfully stopped from the running state. While calibrating, the valve will be set to 4mA and fully close to its 0% position. It will remain in this state for a period of time as defined in the Calibrate Time Before Bleed parameter. Following the delay, the valve will remain at its minimum position until the compressor is started. At its minimum position, the valve is permitted to open slightly to prevent liquid from becoming trapped between the valve and the shutoff solenoid. 206 GEA Refrigeration North America, Inc. E_806550_2 Generated

207 Annunciations Shutdowns 4 ANNUNCIATIONS 4.1 Shutdowns Shutdown annunciations are triggered when a condition occurs that requires the system to be disabled to protect one or more of its components. Once a shutdown is annunciated, the user may acknowledge it at any time. An acknowledged shutdown will clear if the issue that triggered it is resolved, but a shutdown that has not been acknowledged will persist until a user marks it as acknowledged List and Description of Compressor Shutdowns Shutdown High Motor Current Shutdown High Motor Speed Shutdown Low Motor Speed Shutdown Low Motor Current Shutdown Capacity Slide Failed To Unload Low Suction Pressure Shutdown High Discharge Temperature Shutdown High Discharge Pressure Shutdown Explanation This annunciation will be triggered if the compressor motor current exceeds the value entered in the High Motor Current Shutdown parameter for a period of time defined in the High Motor Current Shutdown Timer parameter. This annunciation will be triggered if the compressor motor speed exceeds the value entered in the High Motor Speed Shutdown parameter. This annunciation will be triggered if the compressor motor speed falls below the value entered in the Low Motor Speed Shutdown parameter. This annunciation will be triggered if the compressor motor current falls below the value entered in the Low Motor Current Shutdown parameter for a period of time defined in the Low Motor Current Shutdown Timer parameter. This annunciation will be triggered if, either before starting or after stopping, the compressor has not unloaded to its minimum position for a time period in excess of the value selected in the Capacity Slide Failed To Unload Shutdown Timer parameter. This annunciation will be triggered if the suction pressure reading of the compressor drops below the value entered in the Low Suction Pressure Shutdown parameter. This annunciation will be triggered if the discharge temperature reading of the compressor exceeds the value entered in the High Discharge Temperature Shutdown parameter. This annunciation will be triggered if the discharge pressure reading of the compressor exceeds the value entered in the High Discharge Pressure Shutdown parameter. GEA Refrigeration North America, Inc. E_806550_2 Generated

208 Annunciations Shutdowns Shutdown High Oil Separator Temperature Shutdown Low Oil Separator Temperature Shutdown Low Oil Level Shutdown High Oil Temperature Shutdown Low Oil Temperature Shutdown High Oil Differential Pressure Shutdown Low Oil Differential Pressure Shutdown High Oil Filter Differential Shutdown Oil Pump Illegal Interlock Shutdown Oil Pump 1 Illegal Interlock Shutdown Explanation This annunciation will be triggered if the oil separator temperature reading exceeds the value of the High Oil Separator Temperature Shutdown parameter. This shutdown will only be annunciated if the compressor is in the starting or running states. This annunciation will be triggered if the oil separator temperature reading falls below the value of the Low Oil Separator Temperature Shutdown parameter. This shutdown will only be annunciated if the compressor is in the starting or running states. This annunciation will be triggered if the Low Oil Level Input becomes deenergized for a period of time in excess of the value entered in the Low Oil Level Shutdown Timer. This annunciation will be triggered if the oil temperature reading exceeds the value of the High Oil Temperature Shutdown parameter. This shutdown will only be annunciated if the compressor is in the starting or running states. This annunciation will be triggered if the oil temperature reading falls below the value of the Low Oil Temperature Shutdown parameter. This shutdown will only be annunciated if the compressor is in the starting or running states. This annunciation will be triggered if the oil differential pressure reading exceeds the value of the High Oil Differential Pressure Shutdown parameter. This shutdown will only be annunciated if the compressor is in the starting or running states. This annunciation will be triggered if the oil differential pressure reading falls below the value of the Low Oil Differential Pressure Shutdown parameter. This shutdown will only be annunciated if the compressor is in the starting or running states. This annunciation will be triggered if the oil filter differential pressure reading exceeds the value of the High Oil Filter Differential Pressure Shutdown parameter. This shutdown will only be annunciated if the compressor is in the starting or running states. This annunciation will be triggered if the oil pump interlock input becomes energized while the oil pump start output is de-energized.. This annunciation will be triggered if the interlock input of the lead oil pump in a dual pump system becomes energized while the lead pump start output is de-energized. This annunciation will only be enabled if the compressor is configured with dual oil pumps. 208 GEA Refrigeration North America, Inc. E_806550_2 Generated

209 Annunciations Shutdowns Shutdown Oil Pump 2 Illegal Interlock Shutdown Oil Pump Loss of Interlock Shutdown High Oil Separator Level Shutdown Compressor Illegal Interlock Shutdown Illegal Compressor Motor Current Shutdown Compressor Loss of Compressor Interlock Low Suction Superheat Shutdown High Suction Superheat Shutdown Low Discharge Superheat Shutdown High Discharge Superheat Shutdown Explanation This annunciation will be triggered if the interlock input of the lag oil pump in a dual pump system becomes energized while the lag pump start output is de-energized. This annunciation will only be enabled if the compressor is configured with dual oil pumps. This annunciation will be triggered if the oil pump interlock input becomes deenergized while the oil pump start output is energized. This annunciation will be triggered if the level in the oil separator remains above the high level float switch for a period of time greater than the High Oil Separator Shutdown Timer parameter. This annunciation will be triggered if the compressor run status input becomes energized while the compressor start output is de-energized. This annunciation will be triggered if the motor current of the compressor is higher than the percentage of the motor FLA as indicated by the value of the Illegal Compressor Motor Current Shutdown while compressor should be stopped. This annunciation will be triggered if the compressor run status input becomes de-energized while the compressor start output is energized. This annunciation will be triggered if the calculated suction superheat value falls below the value of the Low Suction Superheat Shutdown parameter. This shutdown will only be issued if superheat annunciations have been enabled through the Superheat Annunciations parameter. This annunciation will be triggered if the calculated suction superheat value exceeds the value of the High Suction Superheat Shutdown parameter. This shutdown will only be issued if superheat annunciations have been enabled through the Superheat Annunciations parameter. This annunciation will be triggered if the calculated suction superheat value falls below the value of the Low Discharge Superheat Shutdown parameter. This shutdown will only be issued if superheat annunciations have been enabled through the Superheat Annunciations parameter. This annunciation will be triggered if the calculated discharge superheat value falls below the value of the High Discharge Superheat Shutdown parameter. This shutdown will only be issued if superheat annunciations have been enabled through the Superheat Annunciations parameter. GEA Refrigeration North America, Inc. E_806550_2 Generated

210 Annunciations Shutdowns Shutdown Low Outlet Temperature Shutdown Zero Load Shutdown No Oil Flow Detected Shutdown Power Reset Abort Shutdown Pump Down Too Long Shutdown Discharge Check Valve Failed To Open Shutdown Discharge Check Valve Failed To Close Shutdown Oil Drain Failed To Clear Shutdown Low Auxiliary Safety Pressure Low Pressure Differential Suction Check Valve Failed To Open Explanation This annunciation will be triggered if the outlet temperature reading falls below the value of the Low Outlet Temperature Shutdown parameter. This shutdown will only be annunciated if the compressor is in the starting or running states. This annunciation will be triggered if the compressor is running and the capacity slide remains below the zero load position for a set period of time. This annunciation will be triggered if the flow switch in the compressor housing becomes de-energized while the compressor is running, or if the switch does not become energized within a set period of time once the compressor is started. This annunciation will only be enabled for Sabroe compressors. This annunciation will be triggered if the duration of a power outage exceeds the value of the Power Failure Restart Abort Timer. This annunciation will only be issued if the Power Failure Restart Mode parameter is not to Disabled. This annunciation will be triggered if the compressor remains in Pump Down mode for a period of time in excess of the value entered in the Pump Down Maximum Time parameter. This annunciation will be triggered if the discharge valve did not open when instructed to do so by the panel. This annunciation will only be enabled if the compressor is equipped with a motorized discharge check valve. This annunciation will be triggered if the discharge valve did not close when instructed to do so by the panel. This annunciation will only be enabled if the compressor is equipped with a motorized discharge check valve. This annunciation will be triggered if the Oil Drain input does not de-energize within a set period of time after the compressor is instructed to start. This annunciation will only be enabled for Hall compressors. This annunciation will be triggered if the compressor Auxiliary Safety Pressure falls below the value of the Low Ammonia Storage Pressure Shutdown parameter. This annunciation will be triggered if the difference between the Suction Pressure and the Discharge Pressure falls below a safe value. This annunciation is for Grasso Compressors only. This annunciation will be triggered if, after receiving an instruction to open, the suction check valve has not indicated that it is fully open within the period of time defined by the Suction Check Failed To Open Shutdown Delay parameter. 210 GEA Refrigeration North America, Inc. E_806550_2 Generated

211 Annunciations Shutdowns Shutdown Suction Check Valve Failed To Close High Motor Drive End Bearing Temperature High Motor Non Drive End Bearing Temperature High Motor Phase A Winding Temperature High Motor Phase B Winding Temperature High Motor Phase C Winding Temperature High Compressor Male Drive End Bearing Temperature High Compressor Male Non Drive End Bearing Temperature High Compressor Female Drive End Bearing Temperature High Compressor Female Non Drive End Bearing Temperature Maximum Male Rotor Position Minimum Male Rotor Position Explanation This annunciation will be triggered if, after receiving an instruction to close, the suction check valve has not indicated that it is fully closed within the period of time defined by the Suction Check Failed To Open Shutdown Delay parameter. This annunciation will be triggered if the temperature measured at the drive end motor bearing rises above the value of the High Motor Bearing Shutdown parameter. This annunciation will be triggered if the temperature measured at the nondrive end motor bearing rises above the value of the High Motor Bearing Shutdown parameter. This annunciation will be triggered if the Phase A motor winding temperature rises above the value of the High Motor Winding Shutdown parameter. This annunciation will be triggered if the Phase B motor winding temperature rises above the value of the High Motor Winding Shutdown parameter. This annunciation will be triggered if the Phase C motor winding temperature rises above the value of the High Motor Winding Shutdown parameter. This annunciation will be triggered if the temperature measured at the drive end of the male compressor rotor rises above the value of the High Male Rotor Temperature Shutdown parameter. This annunciation will be triggered if the temperature measured at the nondrive end of the male compressor rotor rises above the value of the High Male Rotor Temperature Shutdown parameter. This annunciation will be triggered if the temperature measured at the drive end of the female compressor rotor rises above the value of the High Female Rotor Temperature Shutdown parameter This annunciation will be triggered if the temperature measured at the nondrive end of the female compressor rotor rises above the value of the High Female Rotor Temperature Shutdown parameter. This annunciation will be triggered if the current position of the male compressor rotor has exceeded the value of the Male Rotor Maximum Shutdown Position parameter. This annunciation will be triggered if the current position of the male compressor rotor has fallen below the value of the Male Rotor Minimum Shutdown Position parameter. GEA Refrigeration North America, Inc. E_806550_2 Generated

212 Annunciations Shutdowns Shutdown Maximum Female Rotor Position Minimum Female Rotor Position Dual Oil Pump Motor Protection High Intermediate Pressure High Intermediate Temperature Duo IO Counter Not Counting Duo Standstill Monitoring Safety Chain Explanation This annunciation will be triggered if the current position of the male compressor rotor has exceeded the value of the Female Rotor Maximum Shutdown Position parameter. This annunciation will be triggered if the current position of the male compressor rotor has fallen below the value of the Female Rotor Minimum Shutdown Position parameter. This annunciation will be triggered if both motor protection inputs have deenergized. This annunciation will be triggered if the intermediate pressure in the condenser exceeds the value of the High Intermediate Pressure Shutdown parameter. This annunciation will be triggered if the intermediate temperature in the condenser exceeds the value of the High Intermediate Temperature Shutdown parameter. This annunciation will be triggered if the counter slice is configured but is not incrementing while the compressor is running. This annunciation will be triggered if rotor movement while the compressor is stopped. This annunciation will be triggered if the safety chain input de-energizes List and Description of Condenser Shutdowns Shutdown Condenser High Discharge Pressure Condenser Low Discharge Pressure Explanation This annunciation will be triggered if the Condenser Discharge Pressure exceeds the Condenser High Discharge Pressure Shutdown parameter for the period of time defined by the High Discharge Pressure Shutdown Delay parameter. This annunciation will be triggered if the Condenser Discharge Pressure falls below the Condenser Low Discharge Pressure Shutdown parameter for the period of time defined by the Low Discharge Pressure Shutdown Delay parameter. 212 GEA Refrigeration North America, Inc. E_806550_2 Generated

213 Annunciations Shutdowns List and Description of Evaporator Shutdowns Shutdown Evaporator Max Liquid Level Secondary Refrigerant Feedback Flow Explanation This annunciation will be triggered if a high liquid level is detected. This annunciation is only for GEA BluAstrum. This annunciation will be triggered if no flow is detected while the secondary refrigerant pump is running List and Description of VTrac Shutdowns Shutdown High Vibration Damage Explanation This annunciation will be triggered if the vibration measured by the VTrac monitor has become severe enough that continued operation could damage the equipment List and Description of Refrigerant Sensor Shutdowns Shutdown Refrigerant Sensor High High Shutdown Explanation This annunciation will be triggered if the parts per million reading on any refrigerant sensor exceeds the Refrigerant Sensor High High Shutdown parameter for the period of time defined by the Refrigerant Sensor High High Shutdown Delay parameter List and Description of Drum Sequencer Shutdowns Shutdown Compressor Sequencer Shutdown Condenser Sequencer Shutdown Explanation This annunciation will be triggered if a situation occurs which requires the compressor sequencing control to be disabled. This annunciation will be triggered if a situation occurs which requires the condenser sequencing control to be disabled. GEA Refrigeration North America, Inc. E_806550_2 Generated

214 Annunciations Warnings List and Description of Other Shutdowns Shutdown Emergency Stop Shutdown Auxiliary Shutdown Analog Input Count Mismatch Shutdown Analog Output Count Mismatch Shutdown Digital Input Count Mismatch Shutdown Digital Output Count Mismatch Shutdown Analog Slice Not Recognized Shutdown Sensor Failure Shutdown Loss of Communications I/O Network Watchdog IO Network Explanation This annunciation will be triggered if the Emergency Stop input becomes deenergized or the Emergency Stop button is pressed. This annunciation will be triggered if the Auxiliary Shutdown input becomes de-energized. This shutdown will only be issued if the Auxiliary Shutdown option has been enabled in the configuration. This annunciation will be triggered if the number of Analog Input slices detected by the panel is different from the number called for in the configuration. This annunciation will be triggered if the number of Analog Output slices detected by the panel is different from the number called for in the configuration. This annunciation will be triggered if the number of Digital Input slices detected by the panel is different from the number called for in the configuration. This annunciation will be triggered if the number of Digital Output slices detected by the panel is different from the number called for in the configuration. This annunciation will be triggered if a slice in the I/O system is not of a type supported by the GEA Omni Panel. This annunciation will be triggered if the reading of a sensor is outside its defined range. This annunciation will only be triggered if the failed sensor is critical to the safe operation of the compressor. This annunciation will be triggered if the panel loses its connection to an I/O Bus Coupler. This annunciation will be triggered if the panel is connected properly to an I/O Bus Coupler, but one or more of the connected slices are not functioning properly. 4.2 Warnings Warning annunciations are triggered when a condition occurs that is outside the normal operating conditions of the system and should be brought to a user s attention, but is not severe enough that the entire system should be shut down. All warning annunciations are momentary and will only remain triggered for as long as the condition that caused them persist. 214 GEA Refrigeration North America, Inc. E_806550_2 Generated

215 Annunciations Warnings List and Description of Compressor Warnings Warning High Motor Current Warning High Suction Pressure Warning High Discharge Temperature Warning High Discharge Pressure Warning High Oil Separator Temperature Warning Low Oil Separator Temperature Warning High Oil Separator Level Warning High Oil Temperature Warning Low Oil Temperature Warning High Oil Filter Differential Warning Explanation This annunciation will be triggered if the motor current reading exceeds the value obtained by subtracting the High Motor Current Warning Offset parameter from the High Motor Current Shutdown parameter. This annunciation will be triggered if the suction pressure reading exceeds the value obtained by subtracting the High Suction Pressure Warning Offset parameter from the High Suction Pressure Warning parameter. This annunciation will be triggered if the discharge temperature reading exceeds the value obtained by subtracting the High Discharge Temperature Warning Offset parameter from the High Discharge Temperature Shutdown parameter. This annunciation will be triggered if the discharge pressure reading exceeds the value obtained by subtracting the High Discharge Pressure Warning Offset parameter from the High Discharge Pressure Shutdown parameter. This annunciation will be triggered if the oil separator temperature reading exceeds the value obtained by subtracting the High Oil Separator Temperature Warning Offset parameter from the High Oil Separator Temperature Shutdown parameter. This annunciation will be triggered if the oil separator temperature reading falls below the value obtained by adding the Low Oil Separator Temperature Warning Offset parameter to the Low Oil Separator Temperature Shutdown parameter. This annunciation will be triggered if the oil separator high level input becomes de-energized for a period of time that exceeds the value of the High Oil Separator Level Warning Timer. This annunciation will be triggered if the oil separator temperature reading exceeds the value obtained by subtracting the High Oil Separator Temperature Warning Offset parameter from the High Oil Separator Temperature Shutdown parameter. This annunciation will be triggered if the oil temperature reading falls below the value obtained by adding the Low Oil Temperature Warning Offset parameter to the Low Oil Temperature Shutdown parameter. This annunciation will be triggered if the calculated oil filter differential exceeds the value obtained by subtracting the High Oil Filter Differential Warning Offset parameter from the High Oil Filter Differential Shutdown parameter. GEA Refrigeration North America, Inc. E_806550_2 Generated

216 Annunciations Warnings Warning Illegal Oil Filter Differential Pressure Warning Oil Pump Loss of Interlock Auxiliary 1 Warning Oil Pump Loss of Interlock Auxiliary 2 Warning Low Suction Pressure Warning High Inlet Temperature Warning Low Inlet Temperature Warning High Outlet Temperature Warning Low Outlet Temperature Warning High Oil Differential Pressure Warning Low Oil Differential Pressure Warning Explanation This annunciation will be triggered if the calculated value of the Oil Filter Differential falls below -2 PSID. This annunciation will be triggered if the interlock input of the lead oil pump in a dual pump system becomes de-energized while the pump is supposed to be running. This annunciation will only be enabled if the compressor is configured with dual oil pumps, and the first pump is selected as the lead pump. An annunciation will cause the lag pump to start. This annunciation will be triggered if the interlock input of the lead oil pump in a dual pump system becomes de-energized while the pump is supposed to be running. This annunciation will only be enabled if the compressor is configured with dual oil pumps, and the second pump is selected as the lead pump. An annunciation will cause the lag pump to start. This annunciation will be triggered if the compressor suction pressure exceeds the value obtained by subtracting the Low Suction Pressure Warning Offset parameter from the Low Suction Pressure Shutdown parameter. This annunciation will be triggered if the inlet temperature reading exceeds the value of the High Inlet Temperature Warning parameter. This annunciation will be triggered if the inlet temperature reading falls below the value of the Low Inlet Temperature Warning parameter. This annunciation will be triggered if the outlet temperature reading exceeds the value of the High Outlet Temperature Warning parameter. This annunciation will be triggered if the outlet temperature reading falls below the value of the Low Outlet Temperature Warning parameter. This annunciation will be triggered if the calculated oil differential pressure exceeds the value obtained by subtracting the High Oil Differential Pressure Warning Offset parameter from the High Oil Differential Pressure Shutdown parameter. This annunciation will be triggered if the calculated oil differential pressure falls below the value obtained by adding the Low Oil Differential Pressure Warning Offset parameter to the Low Oil Differential Pressure Shutdown parameter. 216 GEA Refrigeration North America, Inc. E_806550_2 Generated

217 Annunciations Warnings Warning Low Oil Differential Pressure Running Dual Pump Warning Low Oil Differential Pressure Starting Dual Pump Warning Lost Communication With Sequencer Loss Of Remote Start Signal High Motor Drive End Bearing Temperature High Motor Non Drive End Bearing Temperature High Motor Phase A Winding Temperature High Motor Phase B Winding Temperature High Motor Phase C Winding Temperature High Compressor Male Drive End Bearing Temperature Explanation This annunciation will be triggered if the calculated oil differential pressure falls below the value obtained by adding the Low Oil Differential Pressure Warning Offset parameter to the Low Oil Differential Pressure Shutdown parameter. This annunciation will only be triggered if the compressor is configured with dual oil pumps and the compressor is in the running state. An annunciation will cause the lag pump to start. This annunciation will be triggered if the calculated oil differential pressure falls below the value obtained by adding the Low Oil Differential Pressure Warning Offset parameter to the Low Oil Differential Pressure Shutdown parameter. This annunciation will only be triggered if the compressor is configured with dual oil pumps and the compressor is starting. An annunciation will cause the lag pump to start. This annunciation will be triggered if the panel loses its connection to the sequencer after a valid connection has been established. This annunciation will be triggered if the compressor is unable to find a valid remote start signal when it is switched to remote mode after being manually started. This annunciation will be triggered if the temperature measured at the drive end motor bearing rises above the value of the calculated High Motor Bearing Warning set point. This annunciation will be triggered if the temperature measured at the nondrive end motor bearing rises above the value of the calculatedhigh Motor Bearing Warning parameter. This annunciation will be triggered if the Phase A motor winding temperature rises above the value of the calculatedhigh Motor Winding Warning set point. This annunciation will be triggered if the Phase B motor winding temperature rises above the value of the calculated High Motor Winding Warning set point. This annunciation will be triggered if the Phase C motor winding temperature rises above the value of the calculated High Motor Winding Warning set point. This annunciation will be triggered if the temperature measured at the drive end of the male compressor rotor rises above the value of the calculated High Male Rotor Temperature Warning set point. GEA Refrigeration North America, Inc. E_806550_2 Generated

218 Annunciations Warnings Warning High Compressor Male Non Drive End Bearing Temperature High Compressor Female Drive End Bearing Temperature High Compressor Female Non Drive End Bearing Temperature Oil Pump 1 Motor Protection Oil Pump 2 Motor Protection Explanation This annunciation will be triggered if the temperature measured at the nondrive end of the male compressor rotor rises above the value of the calculated High Male Rotor Temperature Warning set point. This annunciation will be triggered if the temperature measured at the drive end of the female compressor rotor rises above the value of the calculated High Female Rotor Temperature Warningset point. This annunciation will be triggered if the temperature measured at the nondrive end of the female compressor rotor rises above the value of the calculated High Female Rotor Temperature Warning set point. This annunciation will be triggered if Oil Pump 1 Motor Protection Input is deenergized. This annunciation will be triggered if Oil Pump 2 Motor Protection Input is deenergized List and Description of Limitation Warnings Warning Suction Pressure Force Unload Suction Pressure Load Limit Motor Current Force Unload Motor Current Load Limit Explanation This annunciation will be triggered if the compressor suction pressure falls below the set point calculated by adding the value of the Limitation Suction Pressure Force Unload Offset parameter to the Low Suction Pressure Shutdown parameter. This annunciation will be triggered if the compressor suction pressure falls below the set point calculated by adding the value of the Limitation Suction Pressure Load Inhibit Offset parameter to the Low Suction Pressure Shutdown parameter. This annunciation will be triggered if the compressor discharge pressure rises above the set point calculated by subtracting the value of the Limitation Motor Current Force Unload Offset parameter from the High Motor Current Shutdown parameter. This annunciation will be triggered if the compressor discharge pressure rises above the set point calculated by subtracting the value of the Limitation Motor Current Load Inhibit Offset parameter from the High Motor Current Shutdown parameter. 218 GEA Refrigeration North America, Inc. E_806550_2 Generated

219 Annunciations Warnings Warning Outlet Temperature Force Unload Outlet Temperature Load Limit Discharge Pressure Force Unload Discharge Pressure Load Limit Ammonia Storage Pressure Load Limit Ammonia Storage Pressure Force Unload Explanation This annunciation will be triggered if the compressor outlet temperature rises above the set point calculated by subtracting the value of the Limitation Outlet Temperature Force Unload Offset parameter from the Low Outlet Temperature Shutdown parameter. This annunciation will be triggered if the compressor outlet temperature rises above the set point calculated by subtracting the value of the Limitation Outlet Temperature Load Inhibit Offset parameter from the Low Outlet Temperature Shutdown parameter. This annunciation will be triggered if the compressor discharge pressure rises above the set point calculated by subtracting the value of the Limitation Discharge Pressure Force Unload Offset parameter from the High Discharge Pressure Shutdown parameter. This annunciation will be triggered if the compressor discharge pressure rises above the set point calculated by subtracting the value of the Limitation Discharge Pressure Load Inhibit Offset parameter from the High Discharge Pressure Shutdown parameter. This annunciation will be triggered if the compressor outlet temperature rises above the set point calculated by subtracting the value of the Limitation Ammonia Storage Pressure Load Limit Offset parameter from the Low Ammonia Storage Pressure Shutdown parameter. This annunciation will be triggered if the compressor ammonia storage pressure rises above the set point calculated by subtracting the value of the Limitation Ammonia Storage Pressure Force Unload Offset parameter from the Low Ammonia Storage Pressure Shutdown parameter. GEA Refrigeration North America, Inc. E_806550_2 Generated

220 Annunciations Warnings List and Description of Condenser Warnings Warning Condenser Loss Of Interlock Condenser High Discharge Pressure Condenser Low Discharge Pressure Explanation This annunciation will be triggered if a condenser device is instructed to run by the sequencing schedule but the run status is not energized. This annunciation will be triggered if the Condenser Discharge Pressure exceeds the Condenser High Discharge Pressure Warning parameter for the period of time defined by the High Discharge Pressure Warning Delay parameter. This annunciation will be triggered if the Condenser Discharge Pressure falls below the Condenser Low Discharge Pressure Warning parameter for the period of time defined by the Low Discharge Pressure Warning Delay parameter List and Description of Evaporator Warnings Warning Evaporator Max Liquid Level High Temperature Low Temperature Secondary Refrigerant Feedback Pump Secondary Refrigerant Feedback Flow Explanation This annunciation will be triggered if a high liquid level is detected. This annunciation is only for GEA BluAstrum. This annunciation will be triggered if the temperature measured by an evaporator temperature probe exceeds the value of the zone s High Temperature Warning Set Point for a period of time defined by the corresponding Low Temperature Warning Delay parameter. This annunciation will be triggered if the temperature measured by an evaporator temperature probe falls below the value of the zone s Low Temperature Warning Set Point for a period of time defined by the corresponding Low Temperature Warning Delay parameter. This annunciation will be triggered if the run feedback module for the secondary refrigerant pump is de-energized while the pump is instructed to run. This annunciation will be triggered if no flow is detected while the secondary refrigerant pump is running. 220 GEA Refrigeration North America, Inc. E_806550_2 Generated

221 Annunciations Warnings List and Description of Profibus Gateway Warnings Warning Lost Communication With Gateway LiveBit Time Communication With Gateway Explanation This annunciation will be triggered if the communications between the GEA Omni panel and the Profibus Gateway are interrupted. This annunciation will be triggered if the Livebit is not changing while communication with the Profibus Gateway List and Description of GEA BluAstrum Condenser Warnings Warning Condenser No Coolant Flow Detected Condenser High Temperature Explanation This annunciation will be triggered if no coolant flow is detected in the condenser. This annunciation will be triggered if the temperature in the condenser exceeds the value of the High Condenser Temperature Warning parameter List and Description of VTrac Warnings Warning High Vibration Warning VTrac High Vibration Damage Warning VTrac No Communications Explanation This annunciation will be triggered if the vibration measured by the VTrac monitor has exceeded the safe range. This annunciation will be triggered if the vibration measured by the VTrac monitor has become severe enough that continued operation could damage the equipment. This annunciation will only occur if VTrac shutdowns are disabled. This annunciation will be triggered if the communications between the GEA Omni panel and the VTrac vibration monitor are interrupted. GEA Refrigeration North America, Inc. E_806550_2 Generated

222 Annunciations Warnings List and Description of Refrigerant Sensor Warnings Warning Refrigerant Sensor High Warning Refrigerant Sensor High High Warning Explanation This annunciation will be triggered if the parts per million reading on any refrigerant sensor exceeds the Refrigerant Sensor High Warning parameter for the period of time defined by the Refrigerant Sensor High Warning Delav parameter. This annunciation will be triggered if the parts per million reading on any refrigerant sensor exceeds the Refrigerant Sensor High High Warning parameter for the period of time defined by the Refrigerant Sensor High High Warning Delay parameter List and Description of Oil Still Warnings Warning No Oil Still Return Activated Explanation This annunciation will be triggered if the Oil Return attempts to initiate while no compressors are running List and Description of Other Warnings Warning Auxiliary Warning Math Block Units Mismatch Warning Sensor Failure Warning Please contact GEA High Log Usage Math Block Units Mismatch Explanation This annunciation will be triggered if the Auxiliary Warning input becomes deenergized. This warning will only be issued if the Auxiliary Warning option has been enabled in the configuration. This annunciation will be triggered if the inputs of a Math block in the logic diagram are expressed in different units. This annunciation will be triggered if the reading of a sensor is outside its defined range. This annunciation will be triggered if the compressor can continue to run safely without the failed sensor. This annunciation will be triggered if an unusual amount of information is being written to the activity log. This annunciation will be triggered if a Math block in the logic diagram is receiving two different unit types as input. 222 GEA Refrigeration North America, Inc. E_806550_2 Generated

223 Annunciations Notifications 4.3 Notifications List and Description of Compressor Notifications Notification Upcoming Service Required Notification Past Due Service Required Notification Service Required Notification Explanation This annunciation will be triggered if the panel is scheduled for maintenance within one hundred hours, as entered on the Maintenance chart in the Service screen. This annunciation will only trigger if the compressor has been running for at least five hundred hours. This notification will not be annunciated if service notifications have been disabled. This annunciation will be triggered if the current service interval has not been marked as complete and one hundred hours have passed since the interval in question came due. If this notification is cleared, the panel will wait for the compressor to run for another one hundred hours and, if the service interval still has not been completed, will annunciate the notification again. The notification will continue to be annunciated in one hundred hour increments until the service interval is marked as completed. This notification will not be annunciated if service notifications have been disabled. This annunciation will be triggered once the runtime of the panel has reached the next required service interval, as entered on the Maintenance chart in the Service screen. This notification will not be annunciated if service notifications have been disabled List and Description of Condenser Notifications Notification Condenser Illegal Interlock Detected Invalid Entries In Condenser Schedule Explanation This annunciation will be triggered if the run status for a condenser device becomes energized while the sequencing schedule indicates it should not be running. This annunciation will be triggered if the action selected for a condenser device in the sequencing schedule is not a valid command for that type of device. GEA Refrigeration North America, Inc. E_806550_2 Generated

224 Annunciations List and Description of Other Notifications Notification Need Updated Drawings Explanation This annunciation will be triggered if any change is made to the panel or configuration that will necessitate a change to the electrical drawings. 224 GEA Refrigeration North America, Inc. E_806550_2 Generated

225 Sensor Calibration Pressure Transducer Calibration 5 SENSOR CALIBRATION All sensors providing data to the GEA Omni panel may be calibrated from the Sensors tab of the Configuration screen. For more information Section , Page 96. GEA recommends that transducer calibrations be checked annually. 5.1 Pressure Transducer Calibration 1. Ensure that the control panel is in Service Mode and the compressor is Stopped. 2. Touch the cell associated with the Measured value of the sensor in question to bring up the calibration pad shown below. fig.115: Pressure Sensor Calibration Pad 3. Attach a calibrated gauge or digital multimeter attachment to the service valve of the transducer. 4. Remove the cover and open the service valve. 5. Record the actual pressure on the gauge or multimeter. 6. Use the keypad to enter the recorded value for the sensor. Maximum and minimum limits will be set automatically by taking the current reading and respectively adding and subtracting ten percent of the transducer s range. Maximum and minimum values are displayed at the bottom of the keypad display. If the recorded value falls outside these bounds, it is an indication that the transducer may be damaged, incorrectly wired or of the wrong type. 7. Complete calibration for the sensor by touching the Enter button. GEA Refrigeration North America, Inc. E_806550_2 Generated

226 Sensor Calibration ICTD Temperature Transducer Calibration 5.2 ICTD Temperature Transducer Calibration Integrated Circuit Temperature Detectors (ICTD) temperature sensors should not be confused with other types of temperature measuring devices such as RTDs, thermocouples or thermistors. An ICTD temperature probe consists of an electronic device that is imbedded in the probe which allows a very small current to pass that is proportional to the temperature of the device. The probe can be calibrated using a single point calibration method because the rate of change of the current passed through the ICTD vs. the temperature is linear. 1. Ensure that the control panel is in Service Mode and the compressor is Stopped. 2. Touch the cell associated with the Measured value of the sensor in question to bring up the calibration pad shown below. fig.116: Temperature Probe Calibration Pad 3. Open the electrical box of the sensor. 4. Loosen the screw that retains the hold down tab and rotate the tab out of the way. 5. Remove the temperature probe from the well and immerse it in an ice water bath with a calibrated thermometer or digital multimeter attachment. The ice water should be predominantly ice with just enough water to cover the Ice. The temperature of the ice and water mixture will approach the triple point of the water (~32.02 F/ 0.01 C). 6. Allow both devices to stabilize for approximately three minutes in the ice water bath. 7. Record the actual temperature on the thermometer or multimeter. If a calibrated measurement device is not available, the channel should be calibrated to 32.0 F/ 0.0 C once the reading has stabilized. 8. Use the keypad to enter the recorded value for the sensor. Maximum and minimum limits will be set automatically by taking the current reading and respectively adding and subtracting ten percent of the sensor s range. Maximum and minimum values are displayed at the bottom of the keypad display. If the recorded value falls outside these bounds, it is an indication that the transducer may be damaged, incorrectly wired or of the wrong type. 9. Complete calibration for the sensor by touching the Enter button. 226 GEA Refrigeration North America, Inc. E_806550_2 Generated

227 5.3 Sensor Calibration Capacity Slide Position Calibration Capacity Slide Position Calibration Touching the cell associated with the Measured value of the Capacity Slide Position will bring up the calibration pad shown below. fig.117: Capacity Slide Calibration Pad The buttons displayed along the bottom row of the sub screen are used to calibrate these sensors. The functions of the buttons are: 1. LOAD Touching this button will energize the solenoids to load the sensor to 100 %. Touching it a second time will de-energize the solenoids. While the solenoids are energized the indicator displayed on the right edge of the button will be illuminated green. 2. UNLOAD Touching this button will energize the solenoids to unload the sensor to 0 %. Touching it a second time will de-energize the solenoids. While the solenoids are energized the indicator displayed on the right edge of the button will be illuminated green. 3. OIL PUMP Touching this button will toggle the oil pump on or off. 4. AUTO CALIBRATE Touching this button will cause the sensor to energize the solenoid to load fully. If no movement is detected, a message will appear to inform the user that the auto calibration failed. Once the slide has loaded fully, the current reading will be set as the maximum position and the slide will unload fully. The reading of the sensor once it has fully unloading will be set as the minimum position. 5. Save Low Offset Touching this button will save the current reading of the sensor as the capacity slide s minimum position. 6. Save High Offset Touching this button will save the current reading of the sensor as the capacity slide s maximum position. For new compressor packages, the required steps for calibrating a Capacity Slide Position sensor vary depending on whether or not the package is equipped with an external oil pump. Refer to Section 5.3.1, Page 228 for compressors equipped with an external oil pump and Section 5.3.2, Page 228 for compressors without an external oil pump. Hint! Step variable Vi compressors manufactured by Mycom, Frick or Kobe will require a different procedure, which is detailed in Section 5.3.3, Page 230. GEA Refrigeration North America, Inc. E_806550_2 Generated

228 Sensor Calibration Capacity Slide Position Calibration Compressor Capacity Slide Input Calibration with External Oil Pump 1. Ensure that the control panel is in Service Mode and the compressor is Stopped. 2. Touch the Capacity Slide Position entry in the Sensor Calibration display to bring up the calibration pad. 3. Touch the OIL PUMP button. The indicator on the right edge of the button will be illuminated green to indicate that the oil pump is running. This step may be skipped for Vilter compressors. 4. Touch the UNLOAD button. Wait until the slide valve reaches the fully unloaded position, at which point the value in the Raw Signal column should stabilize. The value that the signal will stabilize to is determined by the type of sensor being used. Hint! Certain Compressors will use reverse acting capacity sensors, which will stabilize to a high value at the low offset. 5. Touch the Save Low Offset button. The corresponding slide valve position sensor output has been recorded as the fully unloaded position. 6. Touch the LOAD button. Wait until the slide valve reaches the fully loaded position, at which point the value in the Raw Signal column should stabilize. The value that the signal will stabilize to is determined by the type of sensor being used. 7. Touch the Save High Offset button, the corresponding slide valve position sensor output has been recorded as the fully loaded position. 8. Touch the UNLOAD button again. The compressor should fully unload and the indicated Capacity Slide Position should track with it. Touch the LOAD button to fully load the compressor and observe the Capacity Slide Position. 9. If the Capacity Slide Position appears to track the Raw Signal, the calibration is complete. Turn off the oil pump by touching the OIL PUMP button a second time. 10. Otherwise, repeat the procedure from step #1. Ensure that the slide position indicator reading changes smoothly between full unload and full load. 11. Exit the calibration pad by touching the X button. 12. The compressor must remain stopped for a period of time determined by the Oil Drain Timer Compressor Capacity Slide Input Calibration without External Oil Pump 1. Ensure that the control panel is in Service Mode and the compressor is Stopped. 2. Touch the Capacity Slide Position entry in the Sensor Calibration display to bring up the calibration pad. 228 GEA Refrigeration North America, Inc. E_806550_2 Generated

229 Sensor Calibration Capacity Slide Position Calibration 3. Verify that the compressor is physically fully unloaded. The GEA Omni will allow the compressor to start if it has a slide valve reading less than 70 %. Otherwise, the slide valve mechanism must be mechanically adjusted to less than 70 % to allow the compressor to be initially started. 4. Start the compressor and wait until the compressor is Running and oil pressure has been established. 5 Touch the UNLOAD button. Wait until the slide valve reaches the fully unloaded position, at which point the value in the Raw Signal column should stabilize. The value that the signal will stabilize to is determined by the type of sensor being used. 6. Touch the Save Low Offset button. The corresponding slide valve position sensor output has been recorded as the fully unloaded position. 7. Touch the LOAD button. Wait until the slide valve reaches the fully loaded position, at which point the value in the Raw Signal column should stabilize. The value that the signal will stabilize to is determined by the type of sensor being used. 8. Touch the Save High Offset button, the corresponding slide valve position sensor output has been recorded as the fully loaded position. 9. Touch the UNLOAD button again. The compressor should fully unload and the indicated Capacity Slide Position should track with it. Touch the LOAD button to fully load the compressor and observe the Capacity Slide Position. 10. If the Capacity Slide Position appears to track the Raw Signal and appears to track with the mechanical indication (if equipped with this feature), calibration is complete. 11. Exit the calibration pad by touching the X button. 12. If desired, the compressor may be Stopped at this point. GEA Refrigeration North America, Inc. E_806550_2 Generated

230 Sensor Calibration Capacity Slide Position Calibration Calibration for Capacity Slide for Step Variable Vi Compressors The calibration process for the capacity slide of a step variable Vi compressor package depends on the type of compressor in use. The three types of compressors which may utilize step Variable Vi are Frick, Mycom and HE. Touching the cell associated with the measured value of the capacity slide position on a step variable Vi compressor will bring up the calibration display shown below. fig.118: Capacity Slide Calibration Pad (Step Variable Vi) 1. Ensure that the control panel is in Service Mode and the compressor is Stopped. 2. Verify that the compressor is physically fully unloaded. The GEA Omni will only allow the compressor to start if it has a slide valve reading less than the value of the Maximum Capacity to Allow Start parameter. 3. START the Compressor. 4. Touch the LOW button to force the Vi setting of the compressor to its low level. The bar on the right edge of the button will illuminate green to indicate that the Vi Setting is at its low. 5. Touch the UNLOAD button. Wait until the slide valve reaches the fully unloaded position. The Capacity Slide Voltage should stabilize at approximately 1 V when the compressor is fully unloaded. 6. Touch the Save Low Offset button. The corresponding slide valve position sensor output has been recorded as the fully unloaded position. 7. Touch the LOAD button. Wait until the slide valve reaches the fully loaded position. The Slide Position Indicator should stabilize at approximately 5 V when the compressor is fully loaded. 8. Touch the Save High Offset button, the corresponding slide valve position sensor output has been recorded as the fully loaded position. 9. Touch the UNLOAD button again. The compressor should fully unload and the indicated Capacity Slide Position should track with it. Touch the LOAD button to fully load the compressor and observe the Capacity Slide Position. 10. If the Capacity Slide Position appears to track the Capacity Slide Voltage, the calibration is complete. 11. Otherwise, repeat the procedure. Ensure that the Slide Position Indicator reading changes smoothly between full unload and full load. 12. Touch the Medium button to force the compressor Vi setting to Medium. 13. Repeat Steps 5 through Touch the High button to force the compressor Vi setting to High. 15. Repeat Steps 5 through The compressor may be taken out of Service mode and stopped if desired. 230 GEA Refrigeration North America, Inc. E_806550_2 Generated

231 Sensor Calibration Volume Slide Position Calibration 5.4 Volume Slide Position Calibration Touching the cell associated with the measured value of the Volume Slide Position will bring up the calibration display shown below. The functions of the buttons are the same as those discussed in Section 5.3, Page 227 Capacity Slide Position Calibration. However, the volume slide cannot be calibrated automatically. fig.119: Volume Slide Calibration Pad 1. Calibrate or confirm that the primary capacity slide has been calibrated. 2. Put the control panel in Service Mode. 3. START the compressor. 4. Touch the Volume Slide Position entry to bring up the calibration pad. Automatic or manual control of the volume slide is suspended. 5. Touch the UNLOAD button. Wait until the volume slide reaches the low Vi position. The Vi Slide Indicator should stabilize at 4 ma when the slide is completely unloaded. 6. Touch the Save Low Offset button, the corresponding slide valve position sensor output has been recorded as the fully unloaded position. 7. Touch the LOAD button. Wait until the Vi slide valve reaches the high Vi position. The Vi Slide Indicator should stabilize at 20 ma when the slide is fully loaded. 8. Touch the Save High Offset button, the corresponding slide valve position sensor output has been recorded as the fully loaded position. 9. Touch the UNLOAD button again. The volume slide should fully unload and the indicated Vi Slide Position (%) should track with it. Touch the LOAD button to fully load the volume slide and observe the Vi Slide Position (%). 10. If the Vi Slide Position (%) appears to track with the Vi slide indicator, the calibration is complete. 11. Touch the X to close the calibration window. 12. Automatic or manual control will resume depending on the control parameter setting. 13. Calibration of the Vi slide is complete. 14. The compressor may be taken out of Service mode and Stopped if desired. GEA Refrigeration North America, Inc. E_806550_2 Generated

232 Sensor Calibration Compressor Motor Current Calibration 5.5 Compressor Motor Current Calibration fig.120: Motor Current Calibration Pad 1. In the Main Tab of the Compressor Control Screen Ensure that the compressor motor is stopped and the motor current reading is stable. 2. Start the compressor. 3. Load the compressor to 100% if possible. The compressor must load to at least 50% to complete the calibration process. 4. Touch the Hold button to maintain a constant capacity slide position. 5. Put the hand-held clamp of an amp probe around one of the compressor's motor leads or refer to the motor amp display on the starter if applicable. 6. In the Sensors Tab of the Configuration Screen Touch the value in the measured column of the Motor Current row in the table to bring up the calibration pad and enter the measured motor current in the text box located above the Save Current Offset button. 7. Touch the Save Current Offset button. 8. In the Main Tab of the Compressor Control Screen Unload the compressor to 0%. 9. Stop the compressor. 10. In the Sensors Tab of the Configuration Screen Touch the value in the measured column of the Motor Current row in the table to bring up the calibration pad and touch the Save Low Offset button. 5.6 Capacity Slide Sensor Calibration These steps only need to be performed if the original slide valve position sensor is being replaced. Once the sensor itself has been calibrated as described below, the input will need to be calibrated separately as described in Section 5.3, Page Capacity Slide Calibration with External Oil Pump 1. Ensure that the control panel is in Service Mode and the compressor is Stopped. 232 GEA Refrigeration North America, Inc. E_806550_2 Generated