AE R1 September 2015

Transcription

1 September 2015 Emerson Commercial Comfort Controller ( ) Operation Guide Overview... 2 Operation (Basic)... 2 Navigation... 2 Room Temp Setpoint Adjustment... 2 H/C, Fan, Occupancy, and Override... 3 Main Menu and Settings... 3 Display Options... 3 Configuration (Setup)... 4 Main Menu Overview... 4 About the Emerson Commercial Comfort Controller... 4 Auxiliary Heat (Heat Pump Only) Setup... 4 Fan Setup... 4 Optimum Start Setup... 5 Advanced Menu Date/Time... 5 Inputs... 6 Temp Setpoint Limits... 6 PID Loop Configuration... 6 Restart/Restore... 7 Security Levels and Passwords... 7 Test... 7 Trend Logs... 7 User Interface (UI)... 8 Display Blanking... 8 Inactivity... 8 Rotation Values... 8 Show Temperature Tenths (Decimals)... 8 Mode... 8 Alarms... 8 Date/Time... 9 Schedules... 9 Setpoints System Modes Resetting the Emerson Commercial Comfort Controller Types of Reset Warm and Cold Starts Restore Factory Troubleshooting Alarm Issues Display Freezes (Buttons Have No Effect) Display Keeps Resetting Temperature Reading Is Incorrect Temperature Setpoint Is Not Maintained Time and/or Date Are Not Correct Output, Fan, and Relay Issues Wiring Issues Terminal Voltages and Resistances Tables Kit Part Numbers and Descriptions SuperFlex I-O Values and Set Point Defaults Emerson Climate Technologies, Inc. 1

2 Overview The Emerson Commercial Comfort Controller is a wall-mounted thermostat/controller is native BACnet Advanced Application Controller (B-AAC) for use in a BACnet system. The Comfort Controller simplifes networked zone control for common packaged HVAC equipment, such as packaged rooftop units, fan coil units, heat pumps, and other similar applications. CAUTION To avoid damage from ground loops and other communication issues in networked Comfort Controllers, correct phasing on network and power connections on ALL the networked controllers is critically important. Operation (Basic) Navigation Navigate the menus and change settings by pressing a combination of various arrow buttons and the Enter button. Push the: Enter button to select and/or exit value editing. Up or Down button to move among entries. Right or Left button to move among value fields. Left button to return to the Home screen. NOTE: Access to various functions may require a password. Room Temp. Setpoint Adjustment From the Home (temperature display) screen, press the Up or Down arrow button once to view the existing setpoint. To temporarily change the setpoint, press the Up or Down arrow button repeatedly until the desired setting is displayed and press Enter. (If Enter is not pressed, the display will return to the Home screen after about ten seconds and the new setpoint value will still be saved.) The new setpoint will hold until the next schedule change. To permanently change the setpoint for occupied mode, go to the Setpoints section under the Main Menu. (In the Setpoints menu, heating/cooling setpoints/setbacks and Home Screen Configuration Screens Up (Setpoint) Override Screens Left (Override) Right (Menu) Down (Setpoint) 2015 Emerson Climate Technologies, Inc. 2

3 deadband can be changed with, if required, the correct password access. See Setpoints section.) H/C, Fan, Occupancy, and Override When the fan is commanded to run, the animated 'FAN' icon rotates (if programmed to). When the fan command stops, the fan icon is motionless. The 'OCC' icon shows a sun when in Occupied mode and a quarter moon when in Unoccupied mode. HEAT or COOL will show (and be animated when there is an active command to move the room temperature toward the setpoint via mechanical heating/cooling or an economizer), depending on the current mode. This can also be turned OFF. To override these modes from the Home (temperature display) screen, press the Left arrow button. Press Up or Down to get to the desired line and then Enter (twice) to edit the mode setting. Press Left to exit to Home. Main Menu and Settings From the Home (temperature display) screen, press the Right arrow button to enter the Main Menu. For app type you can select RTU or HP (Advanced > Application > App). For OPT you can select 1H 1C, 2H 2C, 2H 1C or 1H 2C. 2C means 2 stages of cooling where the first stage is the modulating compressor and the second stage is the fix compressor. For delay staging (Additional Setup > Staging > STG Delay) You may need to enter a password to change any settings. Display Options Fahrenheit decimal values are not displayed by default but can be enabled in the User Interface menu. See Show Temperature Tenths (Decimals) section. This does not affect setpoint adjustments, which are always in whole degree increments for Fahrenheit and half degree increments for Celsius. Under Application the selections are for Degrees Scale, App, Opt, and Additional Setup (Degrees Scale can be change to Fahrenheit or Celsius. To toggle the displayed temperature scale between Fahrenheit and Celsius, press the Enter button for at least two seconds until the desired scale is displayed. (Pressing Enter for less time will turn on the back-light if it is of.) The desired scale will persist on the display until this process is repeated or the Emerson Commercial Comfort Controller is restarted. After a restart, the temperature scale will revert to whatever scale is set in the Application menu. To change the scale so that it persists after restarting, change it in the Application menu by resetting the selected application to Not Configured, changing the temperature scale, and then reconfiguring all the application options. See (Advanced) Application and Additional Setup section. By default, rotation values in the lower right of the screen show relative humidity in models with the relevant optional sensors. If more than one value is shown, the values will rotate approximately every five seconds. These values can be hidden if desired, and additional options are also available. See (Advanced) User Interface (UI) section. With R and later firmware, Fahrenheit temperature values on the display change in whole degree increments by default, and Celsius values change in 0.5 increments. Changing the default No to Yes will show tenths of a degree values for both scales Emerson Climate Technologies, Inc. 3

4 Hospitality mode has a simpler display and limited menus, and it is typically used in hotel rooms. Users typically can change only the setpoint, system mode, and fan speed. Pushing the Left and Right buttons displays customizable menu selections. See (Advanced) User Interface (UI). When prompted about a change (on any menu), press Right/Left to select the desired choice and then Enter. About the Emerson Commercial Comfort Controller When Display Blanking is enabled, the display turns of at the same time the backlight goes of (after reset, initial power-up, or time-out). When any button is pressed, the display will reappear until the time-out is reached again. NOTE: Displays can also be locked. Locked UI mode appears like Standard mode on the Home screen, but all button functions (except the backlight) are disabled. The setpoint and other operation functions cannot be changed by the user. Configuration (Setup) NOTE: Menus shown in this document reflect FIRMWARE VERSION R or later. Actual context-sensitive screens are dependent on firmware version, Comfort Controller model, and options selected. NOTE: If appear at the top of the screen (such as in the Main Menu), scroll up or down to see the rest of the menu's off-screen choices. Main Menu Overview Navigate the menus and change settings by pressing a combination of buttons. Press the: Enter button to select and/or exit value editing. Up/Down button to move among entries (up/ down lines). Left/Right button to move among value fields (left/ right spaces). Left button to return to the Home screen. These display-only screens show the following information on various menus (select More and then the relevant category to see them all). Model number Application configuration and options (set in the Application menu. Auxiliary Heat (Heat Pump Only) Setup For HPUs, auxiliary heat can be set for none, with compressor lockout, or without compressor lockout. The Delay time controls how long the space temperature must be below the auxiliary heat's start temperature before auxiliary heat will turn on. (For more details, see the Auxiliary/Emergency Heat section under Sequence of operation (BAC-1xx63/1xxx63) in the Emerson Commercial Comfort Controller Application Guide.) Comp OAT Low - The user interface min./ max. limits are 0 and 70 degrees, with a default value of 40 degrees F. Fan Setup NOTE: A log-in may be required to access menu items Emerson Climate Technologies, Inc. 4

5 For heating applications, Heating Fan is set to Auto by default but can be disabled if needed (such as for an FCU that is factory wired to run at a fixed speed or for a baseboard heater without a fan). The Heating Fan selection is only available when the application supports heating and either occupied fan or Unoccupied fan is set to Auto. NOTE: For a Fan Fail Alarm, see Sensor Setup and Alarms. Optimum Start Setup When optimum Start is enabled, the Emerson Commercial Comfort Controller soon 'learns' the amount of time required to reach the setpoint from the setback/setup temperature. It will then adjust the actual start time needed to reach the desired setpoint at the beginning of the scheduled on times. (See the chart in the (Advanced) Motion Sensor section.) It will also make seasonal temperature adjustments if an outside air temperature sensor is connected appropriately. NOTE: For maximum efficiency, if optimum Start is enabled, set times in schedules for when the room temperature should reach the setpoint, not when heating/cooling equipment should start (which would be earlier). See Schedules. NOTE: For details of the energy-saving calculations performed, see the optimum Start section in the relevant Sequence of operation in the Emerson Commercial Comfort Controller Application Guide. (Advanced) Date/Time NOTE: When a Emerson Commercial Comfort Controller is powered up after losing the RTC (Real Time Clock) time, it will revert to the default time and date of January 1, 2000, 12:00:00 AM. For areas that observe DST (Daylight Saving Time), select True/On for DST ENABLE and DST AUTO. The DST period is currently the second Sunday of March through the first Sunday of November, but these rules can be changed in the menu if the official period changes or if the installed location needs a schedule adjustment for better operation. NOTE: If DST is enabled but the Auto setting is not, the actual calendar dates (instead of using the general rules) will need to be entered every year. NOTE: An issue can occur if an Emerson Commercial Comfort Controller has been unpowered long enough for it to lose its RTC timekeeping during the period DST is in effect. The time will be restored to the correct time and date. However, the Comfort Controller will assume that this time is non-dst. Within about one minute after the initial time synchronization (during DST months), the device time will reset to DST mode, and the device time will move one hour ahead. This will affect the displayed time on the LCD display as well as any schedules. This issue will not affect powered-up Comfort Controllers during non-dst periods (e.g., most of November through February). If the time has erroneously advanced one hour after an initial time synch command, the easiest solution is to simply send a second time synch command. This will correct the device time. Alternately, the hour can be changed in the Comfort Controller's menu. If the Comfort Controller is used in a BACnet network with UTC (Coordinated Universal Time) synchronization (via broadcasting or addressing a single thermostat) set the UTC Offset value. The UTC Offset value is in minutes and corresponds to the distance of the local time zone to the zero degree meridian. In stand-alone operation or networks that do not have UTC broadcasts, setting this value is not necessary. Sample Time Zones Alaska USA/Canada Pacific Standard Time USA/Canada Mountain Standard Time USA/Canada Central Standard Time Offset to Equal UTC 9 hours = 540 minutes 8 hours = 480 minutes 7 hours = 420 minutes 6 hours = 360 minutes 2015 Emerson Climate Technologies, Inc. 5

6 Menu Items Access Levels Europe (most countries) -1 hours = -60 minutes Menus User Operator Administrator Egypt, Israel, Turkey -2 hours = -120 minutes Home Screen * = Selectable, Default is User Kuwait, Saudi Arabia -3 hours = -180 minutes Setpoint Adjust * * * (Up/Down) System Mode (Auto/Heat/Cool/Off) * * * Occupancy Override (On/Off) Fan Modes (Auto/On/Off) Main Menu* (Default is User) * * * * * * About Advanced Alarm United Arab Emirates India, Sri Lanka China, Mongolia Korea, Japan New Zealand -4 hours = -240 minutes -5.5 hours = -330 minutes -8 hours = -480 minutes -9 hours = -540 minutes -12 hours = -720 minutes To set the BACnet device instance, name, and location, press: 1. Up/Down to move among entries. 2. Enter to select. Date/Time (Advanced) Inputs Schedule Inputs vary according to model, selected application, Setpoints and selected application options. See (Advanced) System Application and Additional Setup. Trend Viewer Advanced Menu (Advanced) Temp. Setpoint Limits Application This menu permits changes to the minimum and Additional Setup maximum allowed user/operator setpoint values. Control Basic Programs NOTE: For Minimum Setpoint Differential, see diagram. Communication Date/Time (Advanced) PID Loop Configuration Device Inputs Limits Motion Sensor Security Trend Logs Test This chart shows conditions in which an administrator password is set (is not 0000) and default password levels are used. USA/Canada Eastern Standard Time Bolivia, Chile Argentina, Uruguay United Kingdom, Portugal 5 hours = 300 minutes 4 hours = 240 minutes 3 hours = 180 minutes 0 hours = 0 minutes This menu allows changes to the default PID (Proportional Integral Derivative) loop values. NOTE: Cooling Proportional Band and Heating Proportional Band were called Deadband in Emerson Commercial Comfort Controller firmware versions earlier than R (see the diagram). NOTE: If space temperature is overshooting the setpoint or oscillating, try increasing the proportional band by a degree. If the problem persists, try increasing the integral value slightly (up to 20% if the value is not 0). If the problem still persists, try setting the integral value to 0. (The optimal integral value is dependent on the characteristics of the particular space and HVAC system Emerson Climate Technologies, Inc. 6

7 (Advanced) Restart/Restore timed out. Time-out occurs 60 seconds (default) AFTER the last button press! NOTE: Desired length of inactivity time-out can be changed in the User Interface menu. See (Advanced) User Interface (UI). To change perform a warm start, cold start, or restore to factory defaults, press: 1. Up/Down to move among entries. 2. Enter to select. See Resetting the Emerson Commercial Comfort Controller for more information about this function. (Advanced) Security Levels and Passwords NOTE: Setting a password to (the default) 0000 eliminates the password prompt and allows full access for that level. If no password is set for ADMIN, no password prompt will occur. If any password is set for ADMIN, the menu items accessible at the various levels are shown in the following chart. NOTE: When setting a password, the Up button increases the alphanumeric value (0 through 9 and then A through Z). The Down button decreases the value. DO NOT FORGET THE ADMIN PASSWORD! The required password level is specified in the prompt. To lock the buttons after configuration is complete (and disable further changes), select Locked UI mode. See (Advanced) User Interface (UI). Access to the Main Menu, Setpoint Adjust, and System/ Occupancy/Fan settings have a default password level of User. This level can be changed for each function to None, Operator, or Administrator through the Access Levels menu. Passwords are set in the Passwords menu. For additional physical security and protection from vandalism, install the Comfort Controller inside a thirdparty locking thermostat guard/cover (but proper airflow must be maintained). (Advanced) Test Any person can view the display but might not be able to change any settings without logging in with one of the three levels of passwords: None (Level '0'): No password is required (everyone has access). (For example, anyone can adjust a setpoint with Access Level None even if all other functions require a password.) User (Level 1): See the Menu Items Access Levels chart. The test menu merely tests the display's pixels and key functions (as verification during manufacturing). (Advanced) Trend Logs Operator (Level 2): See the Menu Items Access Levels chart. Administrator (Level 3): Can access all menus and change all editable values. DO NOT FORGET THIS PASSWORD! Changes in security levels and/or passwords take effect AFTER the current Administrator log-in has 2015 Emerson Climate Technologies, Inc. 7

8 The Comfort Controller generates one or more default trend logs that are dependent on options and applications: Space temperature is always the default trend log #1. If AI2 is configured for discharge air temperature, this will become default trend log #2. To set the desired object to track, press: 1. Up/Down to move among entries. 2. Enter to select. NOTE: The BACnet standard for log intervals is hundredths of seconds. The simplified display on the Comfort Controller converts the value to minutes. The trend log buffer may be viewed by scrolling down and selecting View Log Buffer. The buffer may also be viewed from the Main Menu by scrolling down to the Trend Viewer. (Advanced) User Interface (UI) Display Blanking When Display Blanking is enabled (Y), the display turns off at the same time the backlight goes off (after reset, initial power-up, or time-out). When any button is pressed, the display will reappear until the time-out is reached again. Inactivity The menu/display/backlight time-out (seconds since the last button is pushed) is set in Inactivity. Rotation Values The Rotation Values menu allows easy setting of what applicable optional values (e.g. outside air temperature) will display on the lower right of the screen (such as 'HUM: 46% RH' shown on the Hospitality Mode sample screen). If more than one value is shown, the values will rotate approximately every five seconds. Show Temperature Tenths (Decimals) With R and later firmware, Fahrenheit temperature values on the display change in whole degree increments by default, and Celsius values change in 0.5 increments. Changing the default No to Yes will show tenths of a degree values for both scales. This does not affect setpoint adjustments, which are always in whole degree increments for Fahrenheit and half degree increments for Celsius. Mode Mode toggles the home screen and other menus between the default Standard mode and the (more restricted) Hospitality and Locked UI modes. NOTE: COMPLETE ALL OTHER NECESSARY CONFIGURATION BEFORE SELECTING HOSPITALITY OR LOCKED UI MODE! After Hospitality or Locked UI mode is selected, it is intentionally difficult to revert to Standard mode! NOTE: As additional security against unauthorized bypass of Hospitality or Locked UI mode from the Comfort Controller, set at least an Operator level password. See (Advanced) Security Levels and Passwords. NOTE: To further configure the Comfort Controller or revert to Standard mode, see the Emerson Commercial Comfort Controller Application Guide. Locked UI mode (also known as Mode 3) appears like Standard Mode on the Home screen, but all button functions (except the backlight) are locked. Alarms 2015 Emerson Climate Technologies, Inc. 8

9 A flashing 'SERVICE' on the Home screen indicates an alarm. To view and delete alarms, press: 1. Right to move among fields. 2. Enter to select. (Enter on Alarm Details screen to delete the alarm.) 3. Left to go back one page. Built-in alarms are triggered under these conditions (as applicable to model and configured options): Space Temp Alarm - temperature outside the range of 56 to 86 F for over 300 seconds. Fan Fail Alarm - no fan status signal within five seconds of call for fan (and Input 2 is configured for the fan status sensor option). See Sensor Setup. Low Limit Alarm (freeze stat) - mixed air temperature (MAT) is below the adjustable (under Damper Setup) low limit alarm temp for one second (when configured for the economizer option). After a low limit alarm is generated, the fan will not run until after the Comfort Controller is restarted. See Restart under Resetting the Emerson Commercial Comfort Controller See also Damper Setup. NOTE: See also (Advanced) Trend Logs. Date/Time This menu allows changes to the date and time information (only). More options (such as UTC offset and daylight saving time options) are available in the (Advanced) Date/Time menu. To select the desired schedule, press: 1. Up/Down to move among entries. 2. Enter to select. 3. Left to go back one page. To enter weekly schedules for occupied (ON) and unoccupied (OFF) times, press: 1. Right/Left to move among days and Enter to select. 2. Up/Down to move among entries and Enter to select and edit. 3. Right/Left to move among value fields. 4. Up/Down to increment/decrement value. 5. Enter to exit value editing. 6. Left to move back to days or back one page. NOTE: If a day of a week (e.g., Friday) has a different schedule than the rest, using the Weekdays menu first and then modifying that one day in the Individual Days menu may be easier (two entries) than entering schedules for each day separately in the Individual Days menu (five entries). NOTE: The last overlapping entry overrides any other. For example, suppose the WEEKDAYS menu is used to set all weekdays for 7:00 AM ON and 5:00 PM OFF, and then the INDIVIDUAL DAYS menu is used to add some additional evening meeting ON times for Tuesday and Wednesday. If the WEEKDAYS menu is later used to change the ON time from 7:00 to 7:15, schedules for all the individual week days will be reset to conform to what appears in the WEEKDAYS menu and any special times for individual days will be erased. (Special day schedules will then need to be added again through the INDIVIDUAL DAYS menu). Schedules 2015 Emerson Climate Technologies, Inc. 9

10 The Holiday entries will override the normal occupied weekly schedule entries and keep those days' settings at their setback values. Setback values are entered in the Setpoints section of the Main Menu. (See also the maximum and minimum cooling/heating setpoint values in (Advanced) Temp. Setpoint Limits.) NOTE: For maximum efficiency, if Optimum Start is enabled, set On times in schedules for when the room temperature should reach the setpoint, not when heating/cooling equipment should start (which would be earlier). See Optimum Start Setup. None, Operator, or Administrator through this screen. Passwords are set in the (Advanced) Passwords menu. See (Advanced) Security Levels and Passwords. NOTE: In earlier firmware, Inactivity and Display Blanking were also on this menu. They were moved to the User Interface menu. See (Advanced) User Interface (UI). Trend Viewer Setpoints In the Setpoints menu, setpoints and setbacks for various values are set. (The current room temperature setpoint can also be manually changed from the Home menu.) System Modes To view trend log buffers, press: 1. Up/Down to move among entries. 2. Enter to select. Trend logs are set up in the (Advanced) Trend Logs menus.. This menu allows changes to system enable (auto, off, heat, or cool modes) and occupancy override time. Occupancy Override on this menu is the amount of time (in hours) a manual change in the setpoint (via the Up and Down buttons) will be allowed to override the scheduled setpoint. When the time is set to 0, the override state will last until the next schedule change. NOTE: Occupancy override can also be removed while on the Home screen by pushing the left button, navigating to OCC, hitting Enter twice, and changing ON to OFF. See H/C Fan Occupancy and Override. NOTE: If system is set to OFF using the stat, then unit will go to OCC Mode using the overide Logic. Access to the Main Menu, setpoint adjust, and System/ Occupancy/Fan override have a default password level of User. This level can be changed for each function to Resetting the Emerson Commercial Comfort Controller Types of Reset If the Comfort Controller is not operating correctly or if a low limit alarm has occurred, the Comfort Controller should be reset (reinitialized). Any reset interrupts normal operation, and three types of reset exist: A warm start is generally the least disruptive option (restarting normal operation the quickest). If problems still persist, try a cold start. (This should also be used after a new Control Basic program is loaded and compiled.) If problems still persist (or major changes in a firmware update have taken place) restoring factory defaults (and reconfiguring and reprogramming the Comfort Controller) may be required Emerson Climate Technologies, Inc. 10

11 The 'up time' since the last reset can be seen in the About menu. See About the Emerson Commercial Comfort Controller. Warm and Cold Starts CAUTION During a restart, the analog outputs go to zero, and relays go to their normally open state. A restart is a process that lasts around ten seconds, and it may result in several changes of state for an output, turning equipment off and on abruptly. Before resetting the Comfort Controller, manually override equipment as needed. If a large fan is controlled by the Comfort Controller, for example, set a minimum off time. See Fan Setup (built-in, selectable applications with compressors have a default programmed minimum off time of 300 seconds). A warm start does the following in the Comfort Controller: (After zeroing out objects during the restart process) restores present values of objects to their last values before the restart (until they are updated by the Comfort Controller's programs). Restarts the controller's Control Basic programs. Leaves configuration and programming intact. CAUTION If the checksum test in RAM fails during a warm start, a cold start is performed instead. A cold start does the following in the Comfort Controller: (After zeroing out objects during the restart process) returns all object values to their relinquished defaults (until they are updated by the Comfort Controller's programs). Restarts the controller's Control Basic programs. Leaves configuration and programming intact. NOTE: Menu changes may take up to about two minutes to write to nonvolatile Flash memory. If power to the Comfort Controller is lost during this time, changes may be lost. Restarting the Comfort Controller from its menu is the recommended methods. NOTE: When power is restored after an outage, the Comfort Controller will attempt to do a warm start as long as the values in RAM are retained (up to about four hours). If the RAM checksum test fails, a cold start will be done instead. To perform a WARM start, do one of the following: From the Comfort Controller menu, select Advanced > Restart/Restore > Warm Start. Momentarily remove power to the Comfort Controller. To perform a COLD start, do one of the following: From the Comfort Controller menu, select Advanced > Restart/Restore > Cold Start. Restore Factory Restore Factory (restoring the Emerson Commercial Comfort Controller to the factory settings) does the following: Clears present values. Restores the object database/configuration to the defaults. Restarts the controller's (factory installed) Control Basic programs. CAUTION When returned to factory defaults, analog outputs will go to zero and relays will go to their normally open state. Before restarting the thermostat, manually override equipment as needed. CAUTION After a return to factory defaults, applications are unconfigured. You must select the desired application and appropriate settings before connected equipment will operate properly. (See (Advanced) Application and Additional Setup.) To restore the Comfort Controller to factory settings: 1. Select Restore Factory from the Advanced > Restart/Restore menu. 2. When prompted for the required restart, press 2015 Emerson Climate Technologies, Inc. 11

12 Enter. (To Cancel, press the right button and then Enter or just let the display time-out). 3. After the Comfort Controller has restarted, review the settings and reconfigure as needed. not run until after the Comfort Controller is restarted. (See Resetting the Emerson Commercial Comfort Controller.) Alarm, (False) Space Temp See Alarms. See Temperature Reading Is Incorrect. See Temperature Setpoint Is Not Maintained. Troubleshooting Alarm Issues Alarm, (False) Fan Fail Check configuration. Be sure the Fan Status option is not selected when there is no sensor/ switch for it. Check that the IN2 (fan status) input pull-up resistor switches are fully latched in the correct positions. Any passive, dry contact should use the 10K Ohm setting. (See the Connections and Wiring section of the relevant Emerson Commercial Comfort Controller Installation Guide.) Check IN2 (fan status) input wiring. Check the connected fan status sensor/switch. Alarm, (False) Low Limit (Freeze Stat) Check the Low Limit Alarm setting - see Damper Setup. Check configuration. Be sure the Economizer option is not selected when there is no mixed air temperature sensor. Check that the IN3 (mixed air temp.) input pull-up resistor switches are fully latched in the correct positions (see the Connections and Wiring section of the relevant Emerson Commercial Comfort Controller Installation Guide). Check IN3 (mixed air temperature) input wiring. Check the connected mixed air temperature sensor. NOTE: After a low limit alarm is generated, the fan will Display Freezes (Buttons Have No Effect) Carefully remove the Comfort Controller cover from the backplate and ensure the WD (watch dog) jumper is installed on its two pins closest to the center of the board (see Firmware Upgrade Failures). The jumper is temporarily removed during a firmware update and should be reinstalled when the process is completed. Reinstalling the cover on the backplate will restart the Comfort Controller. If the display is functioning (e.g. time is updating correctly), but the buttons have no effect except to turn on the backlight, the Comfort Controller is in Locked UI mode. See (Advanced) User Interface (UI). Display Keeps Resetting Carefully remove the Comfort Controller cover from the backplate, check pins and connectors, and reinsert. (See Cover Binds on Backplate.) Check for proper supply voltage from the transformer and that the transformer has enough capacity (VA) for all connected devices (see their respective data sheets). NOTE: Wiring must be adequate to avoid excessive voltage drop on long runs! Allow plenty of 'cushion' in measurements A meter may be too slow to register transient dips or peaks during startup. See Wiring Issues. Put the Comfort Controller on a backplate connected to a (test) transformer with short wiring and no other connected devices. If the Comfort Controller works with the test transformer, the wiring and/or transformer in its previous location is inadequate. If it does not work with the test transformer, replace the Comfort Controller Emerson Climate Technologies, Inc. 12

13 Put another Comfort Controller on the installed backplate, and if the second Comfort Controller functions properly, replace the first Comfort Controller. Temperature Reading Is Incorrect Check that the correct.f/.c temperature scale is selected - see Navigation. Fahrenheit decimal values are not displayed by default but can be enabled in the User Interface menu - see Show Temperature Tenths (Decimals). Check for the correct remote temperature sensor confguration - see Sensor Setup. After applying power for the first time (or after an outage), allow the Comfort Controller to self-calibrate a few minutes before verifying temperature reading. If the discrepancy is small, adjust the calibration offset - see (Advanced) Inputs. Check that the thermistor (on models without humidity sensors) is centered in its hole at the bottom of the case and has an air gap around it. Also check that its leads are not pinched, shorted, or broken and that the tape holding down the leads is not loose. (Some early models with humidity sensors did not have the additional thermistor - temperature was derived from the same chip that measured humidity.) Check that the Comfort Controller is NOT mounted on an exterior wall, mounted on or near a large thermal mass (e.g., concrete block wall), blocked from normal air circulation by obstructions, exposed to heat sources (e.g., lights, computers, copiers, coffee makers) or to sunlight (at any time of the day), exposed to drafts from windows or air vents, or exposed to air flow through the conduit from leaks in plenum ducts (put plumber's putty or other sealant inside conduit to block air leaks). See also Input Values Are Outside the Expected Range. Temperature Setpoint Is Not Maintained Select Occupied mode from the Home Menu - see H/C, Fan, Occupancy and Override. Override the fan to On from the Home Menu - see H/C, Fan, Occupancy and Override. Check that the appropriate application is selected - see (Advanced) Application and Additional Setup. Check that room temperature is being sensed correctly - see Temperature Reading Is Incorrect. If space temperature is overshooting the setpoint or oscillating, try increasing the proportional band by a degree. If the problem persists, try increasing the integral value slightly (up to 20). If the problem still persists, try setting the integral value to 0. (The optimal integral value is dependent on the characteristics of the particular space and HVAC system.) See (Advanced) PID Loop Configuration. In 2 - pipe FCU applications, check the changeover water temperature sensor and wiring. If the HVAC system has trouble recovering from the unoccupied setpoint to the occupied setpoint during very cold weather, enable/adjust the setback lockout. See Setback (OAT) Lockout Setup. Time and/or Date Are Not Correct NOTE: When a Comfort Controller is powered up after losing the RTC (Real Time Clock) time, it will revert to the default time and date of January 1, 2000, 12:00:00 AM. Set time and date in the menu. See Date/Time and/or (Advanced) Date/Time. Check the DST (Daylight Saving Time) settings. See (Advanced) Date/Time. NOTE: An issue can occur if a Comfort Controller has been unpowered long enough for it to lose its RTC timekeeping during the period DST (Daylight Saving Time) is in effect (currently the second Sunday of March through the first Sunday of November). The time will be restored to the correct time and date. However, the Comfort Controller will assume that this time is non-dst. Within about one minute after the initial time synchronization (during DST months), the device time will reset to DST mode, and the device time will move one hour ahead. This will affect the displayed time on 2015 Emerson Climate Technologies, Inc. 13

14 the LCD display as well as any schedules. This issue will not affect newly powered Comfort Controllers during non-dst periods (e.g., most of November through February). If the time has erroneously advanced one hour after an initial time synch command, the easiest solution is to simply send a second time synch command. This will correct the device time. Alternately, the hour can be changed in the Comfort Controller's menu. Output, Fan, and Relay Issues Analog Output Does Not Work CAUTION Do not mistakenly connect 24 VAC to an analog output ground. This is not the same as a relay s switched common. See the backplate s terminal label for the correct terminal. Fan Does Not Run NOTE: The animated fan icon is coupled to a binary value in the packaged programming (not the actual fan output terminal). Select Occupied mode from the Home Menu - see H/C, Fan, Occupancy. and Override. Override the fan to On from the Home Menu - see H/C, Fan, Occupancy. and Override. See Wiring Issues. Check that the appropriate application is selected - see (Advanced) Application and Additional Setup. Check the fan configuration - see Fan Setup on Restart the Emerson Commercial Comfort Controller. After a low limit alarm is generated, the fan will not run until after the Comfort Controller is restarted. (See Resetting the Emerson Commercial Comfort Controller.) Relay (External) Does Not Work See Analog Output Does Not Work. See Relay (Internal) Does Not Work. Relay (Internal) Does Not Work CAUTION Relays are for Class-2 voltages (24 VAC) only. Do not connect line voltage to the relays! NOTE: Max. output current is 1 A for individual relays. 24 VAC/VDC or a total of 1.5 A per bank of 3 relays (relays 1-3, 4-6, and 7-9). Do not attach a device that draws current that exceeds the corresponding value. Relays are NO, SPST (Form 'A'). Check current draw of load. Substitute an output device that draws less current. Check that the output is on. See Wiring Issues. Restart the Comfort Controller. If Restore Factory has just been performed, see the NOTE and Cautions in Restore Factory. Wiring Issues Installation Wiring Considerations CAUTION To avoid damage from ground loops and other communication issues in networked Comfort Controllers, correct phasing on network and power connections on ALL the networked controllers is critically important. Because of the many connections (power, network, inputs, outputs, and their respective grounds or switched commons), be sure wiring is well planned before installation of conduit! To prevent excessive voltage drop, use a conductor size that is adequate for the wiring length! Allow plenty of 'cushion' to allow for transient peaks during startup. Make sure that conduit for all wiring has adequate diameter for all necessary wiring. Using 1-inch conduit and junction boxes is recommended! Use external junction boxes above the ceiling or in another convenient location as needed to make connections that run to the Comfort Controller's junction box. Using multiple conductor wires for all inputs (e.g., 8 conductor) and outputs (e.g., 12 conductor) is recommended. Grounds for all the inputs can be combined on one wire Emerson Climate Technologies, Inc. 14

15 Troubleshooting Wiring Problems Review the wiring information in the relevant Emerson Commercial Comfort Controller installation guide. Remove the Comfort Controller from the backplate and inspect the terminals for loose or shorted wires. Use a voltmeter and ohmmeter to check the terminals for expected values. See the illustration below and the Connections and Wiring section of the relevant Emerson Commercial Comfort Controller Installation Guide. NOTE: Voltage on the BACnet MS/TP terminals changes according to the signals (passing of the token) between controllers on the network. No voltage may indicate a bad connection or simply no active network. NOTE: Wiring must be adequate to avoid excessive voltage drop on long runs! Allow plenty of 'cushion' in measurements A meter may be too slow to register transient dips or peaks during startup. Check the wiring at the connected devices. CAUTION Relays are for Class-2 voltages (24 VAC) only. Do not connect line voltage to the relays! CAUTION Do not mistakenly connect 24 VAC to an analog output ground. This is not the same as a relay s switched common. See the backplate s terminal label for the correct terminal Emerson Climate Technologies, Inc. 15

16 Table 1 - Commercial Comfort Controller Kits Part Description Part Number Models Notes Commercial Comfort Controller, Modulation Valve, V Coil, & Tubing Kit Commercial Comfort Controller, Discharge Thermistor, & 24V Coil * Not included in kit. Order separately ZPD34-54K5 ZPD61-91KC ZRD36-48KC ZRD61-81KC ZPD KC ZRD94-125KC Table 2 - SuperFlex I-O Values and Set Point Defaults Thermistor * and clamp * must be used with ZRD81KC and ZPD91KC applications Object RTU - 2H/2C HP - 1 or 2 Stages Comments Read Only Enable AI1 Space Temp Sensor Space Temp Sensor AI2 *Fan Status Sensor *Fan Status Sensor AI3 *Mixed Air Temp *Mixed Air Temp Supply Air Temp X X AI4 *Outside Air Temp *Outside Air Temp X X AI5 *Space Hum Sensor *Space Hum Sensor Space Humidity X X BI6 *Occ Status *Occ Status AI7 *Remote Temperature *Remote Temperature AI8 Scroll Discharge Line Temp Scroll Discharge Line Temp 86 K ohm Thermistor AI9 *Remote CO2 Sensor *Remote CO2 Sensor AI10 *Space CO2 *Space CO2 BO1 Fan Fan Fan Status X BO2 Heat2 Rev Valve BO3 Cool 1 Comp 1 Min ON & Off = 120 sec BO4 Cool 2 Comp 2 BO5 Heat 1 Emer Heat / *Aux Heat BO6 Digital Comp 1 Solenoid Digital Comp 1 Solenoid Control Control PWM Cycle def 15 sec AO7 Variable Speed Fan Variable Speed Fan Future AO8 Variable Speed Condenser Variable Speed Condenser Fan Fan Future AO9 *OA Damper *OA Damper AV1 Minimum Prop Minimum Prop AV2 Active Cooling Setpt Active Cooling Setpt X X AV3 Active Heating Setpt Active Heating Setpt X X AV4 Unocc Cooling Setpt Unocc Cooling Setpt Default Setting: 90 F X AV5 Unocc Heating Setpt Unocc Heating Setpt Default Setting: 55 F X AV6 AV7 Occ Min Cooling Setpt Occ Min Cooling Setpt AV8 Occ Max Heating Setpt Occ Max Heating Setpt AV9 *Mixed Air Setpt *Mixed Air Setpt Damper Output X X AV10 *Min. Damper Position *Min. Damper Position 25% Minimum Position X AV11 *Econ Enable Temp *Econ Enable Temp AV12 Stage Delay Stage Delay AV13 Fan Shutoff Delay Fan Shutoff Delay AV14 *Aux. Heat Delay AV15 *Dehumidification Setpt *Dehumidification Setpt Default Setting: 60% Relative Humidity (RH) X 2015 Emerson Climate Technologies, Inc. 16

17 Object RTU - 2H/2C HP - 1 or 2 Stages Comments Read Only Enable AV16 Override Timer Override Timer AV17 *Comp. OAT Low Limit AV18 *Low Limit Alarm Temp *Low Limit Alarm Temp AV19 AV20 Occ Cooling Setpt Occ Cooling Setpt X AV21 Occ Heating Setpt Occ Heating Setpt Default Setting: 70 F X AV22 *Space Hum *Space Hum AV23 *Outside Air Temp *Outside Air Temp AV24 *Space CO2 Display *Space CO2 Display AV25 Reserved Reserved AV26 Current Mode Setpt Current Mode Setpt AV27 UI Setpt UI Setpt AV28 *Dehum Span *Dehum Span AV29 Cooling Need Cooling Need X AV30 Heating Need Heating Need X AV31 Unocc Min Cooling Setpt Unocc Min Cooling Setpt AV32 Unocc Max Heating Setpt Unocc Max Heating Setpt AV33 Min Setpt Diff Min Setpt Diff AV34 Min Setpt Limit Min Setpt Limit AV35 AV36 AV37 AV38 AV39 AV40 Space Temp Space Temp X X AV41 Cooling Prop Cooling Prop AV42 Heating Prop Heating Prop AV43 MAT_Min MAT_Min AV44 MAT_Max MAT_Max AV45 Econ_Prop_Cold Econ_Prop_Cold AV46 Econ_Prop_Norm Econ_Prop_Norm AV47 *Standby Clg Setpt *Standby Clg Setpt AV48 *Standby Htg Setpt *Standby Htg Setpt AV49 *Standby Offset *Standby Offset AV50 *Standby Timer *Standby Timer AV51 OS Cooling Setpoint OS Cooling Setpoint AV52 OS Heating Setpoint OS Heating Setpoint AV53 Yesterday Rate Yesterday Rate AV54 Two Days Ago Rate Two Days Ago Rate AV55 Three Days Ago Rate Three Days Ago Rate AV56 Prior Day OAT Prior Day OAT AV57 OS Prestart Timer OS Prestart Timer Optimum Start In Minutes (Default Setting: 1 Minute) AV58 *Space CO2 Max *Space CO2 Max AV59 *Space CO2 Last *Space CO2 Last AV60 *CO2 Base *CO2 Base AV61 *OA % Area *OA % Area AV62 *OA Area Pos *OA Area Pos AV63 *OA % Full *OA % Full AV64 *OA Full Pos *OA Full Pos AV65 *OA Max Pos *OA Max Pos AV66 *OA Purge Pos *OA Purge Pos 2015 Emerson Climate Technologies, Inc. 17

18 Object RTU - 2H/2C HP - 1 or 2 Stages Comments Read Only Enable AV67 *OA Recov Pos *OA Recov Pos AV68 *OA Low Vent Temp *OA Low Vent Temp AV69 *OA High Vent Temp *OA High Vent Temp AV70 *Fan Max Off Time *Fan Max Off Time AV71 *Fan Off Timer *Fan Off Timer AV72 *Fan Recov Timer *Fan Recov Timer AV73 *Fan Recov Ratio *Fan Recov Ratio AV74 *Cooling Design Temp *Cooling Design Temp AV75 *Heating Design Temp *Heating Design Temp AV76 * Damper Pos * Damper Pos AV77 *Vent Override Timer *Vent Override Timer AV78 *Space CO2 *Space CO2 UNITS in PPM X X AV79 *Space CO2 Setpt *Space CO2 Setpt AV80 Cooling Intg Cooling Intg AV81 Heating Intg Heating Intg AV82 *Econ Intg *Econ Intg AV83 AV84 AV85 Solenoid PWM Cycle Time Solenoid PWM Cycle Time Default Setting: 15 sec, Opt. 20 AV86 AV87 AV88 AV89 AV90 AV91 AV92 AV93 AV94 AV95 AV96 AV97 AV98 AV99 AV100 BV1 Occupancy Mode Occupancy Mode X BV2 Setpt Override Mode Setpt Override Mode BV3 *Economizer Mode *Economizer Mode BV4 *Low Limit Alarm *Low Limit Alarm BV5 Fan Alarm Fan Alarm X BV6 Fan Need Fan Need BV7 Heating/Cooling Mode Heating/Cooling Mode BV8 *Comp OAT Lockout Mode BV9 BV10 BV11 BV12 Occ Fan Auto/On Occ Fan Auto/On BV13 Unocc Fan Auto/On Unocc Fan Auto/On BV14 F/ C F/ C BV15 Rev Valve Polarity BV16 *Fan Status *Fan Status 2015 Emerson Climate Technologies, Inc. 18

19 Object RTU - 2H/2C HP - 1 or 2 Stages Comments Read Only Enable BV17 BacklightControl BacklightControl BV18 U/I Fan Icon U/I Fan Icon BV19 BV20 *Enable Dehum? *Enable Dehum? BV21 *Dehum Mode *Dehum Mode X BV22 BV23 BV24 *Motion Occ *Motion Occ BV25 *Allow Htg Dehum *Allow Htg Dehum BV26 BV27 U/I System Mode Active U/I System Mode Active BV28 U/I Field A Icon Active U/I Field A Icon Active BV29 U/I Field B Icon Active U/I Field B Icon Active BV30 U/I Field C Icon Active U/I Field C Icon Active BV31 BV32 BV33 Opt Start Enable Opt Start Enable BV34 Opt Start Mode Opt Start Mode BV35 *Standby Enable *Standby Enable BV36 *Standby Mode *Standby Mode BV37 * DCV Damper Mode * DCV Damper Mode BV38 *Vent Ovrd Mode *Vent Ovrd Mode BV39 *Night Flush Enable *Night Flush Enable BV40 *Night Flush Mode *Night Flush Mode BV41 Hospitality Setpt Control Hospitality Setpt Control BV42 BV43 BV44 BV45 BV46 BV47 BV48 BV49 BV50 BV51 Scroll Temperature Alarm Scroll Temperature Alarm Object Ref for EE #6 X X BV52 BV53 BV54 BV55 BV56 BV57 BV58 BV59 BV60 BV61 BV62 BV63 BV64 BV65 BV66 BV Emerson Climate Technologies, Inc. 19

20 Object RTU - 2H/2C HP - 1 or 2 Stages Comments Read Only Enable BV68 BV69 BV70 BV71 BV72 BV73 BV74 BV75 BV76 BV77 BV78 BV79 BV80 BV81 BV82 BV83 BV84 BV85 BV86 BV87 BV88 BV89 BV90 BV91 BV92 BV93 BV94 BV95 BV96 BV97 BV98 BV99 BV100 MSV1 Application Main Type Application Main Type MSV2 Application Sub Type Application Sub Type MSV3 Fan Control Type Constant X MSV4 O.A. Damper Option O.A. Damper Option MSV5 Sensor #2 Option Sensor #2 Option MSV6 Aux. Heat Option MSV7 System Mode System Mode Auto, Heating, Cooling, Off, Aux Heat X MSV8 MSV9 U/I Mode U/I Mode MSV10 (Hospitality Field A) Mode (Hospitality Field A) Mode MSV11 (Hospitality Field B) Fan (Hospitality Field B) Fan MSV12 (Hospitality Field C) blank (Hospitality Field C) blank MSV13 *Ventilation Mode *Ventilation Mode MSV14 *DCV Enable *DCV Enable MSV15 Temperature Reference Temperature Reference MSV16 Sensor #9 Option Sensor #9 Option On-board, Remode, Average, Highest, Lowest X 2015 Emerson Climate Technologies, Inc. 20

21 Object RTU - 2H/2C HP - 1 or 2 Stages Comments Read Only Enable MSV17 MSV18 MSV19 MSV20 MSV21 MSV22 MSV23 MSV24 MSV25 MSV26 MSV27 MSV28 MSV29 MSV30 MSV31 MSV32 MSV33 MSV34 MSV35 MSV36 MSV37 MSV38 MSV39 MSV40 LOOP1 Cooling Loop Cooling Loop LOOP2 Heating Loop Heating Loop LOOP3 *OA Damper Loop *OA Damper Loop LOOP4 *Dehum Htg Loop *Dehum Htg Loop LOOP5 LOOP6 * CO2 DCV Loop * CO2 DCV Loop LOOP7 LOOP8 LOOP9 LOOP10 Sched 1 Normal Occupied Sched Normal Occupied Sched Sched 2 Calendar 1 Trend 1 Space Temp 1 Hour Space Temp 1 Hour Trend 2 Input option deter. by FW Input option deter. by FW Event Enr.1 Space Temp Alarm Space Temp Alarm Used for both Hi and Low X Event Enr.2 *Fan Failure Alarm *Fan Failure Alarm X Event Enr.3 *Low Limit Alarm *Low Limit Alarm X Event Enr.4 *Space Hum Alarm X Event Enr.5 *Space CO2 Alarm *Space CO2 Alarm X Event Enr.6 Scroll Temperature Alarm Scroll Temperature Alarm Object Ref is BV51 Event Enr.7 Event Enr.8 Event Enr.9 Event Enr.10 Notif. Class 1 FlexStat Alarming FlexStat Alarming Notif. Class Emerson Climate Technologies, Inc. 21

22 Object RTU - 2H/2C HP - 1 or 2 Stages Comments Read Only Enable Notif. Class 3 Notif. Class 4 Notif. Class 5 CB Program 1 Setpoints/Modes Setpoints/Modes CB Program 2 Fan Control Fan Control CB Program 3 Valve/Staging Control Valve/Staging Control CB Program 4 *Damper Control *Damper Control CB Program 5 Safeties Safeties CB Program 6 CB Program 7 CB Program 8 CB Program 9 CB Program 10 MSV1=1 Not Config Not Config MSV1=2 Heat Pump MSV1=3 RTU MSV1=4 MSV1=5 MSV2=1 1H/1C 1 Stage MSV2=2 1H/2C 2 Stages MSV2=3 2H/1C MSV2=4 2H/2C MSV2=5 MSV3=1 Constant Spd Constant Spd MSV3=2 MSV3=3 MSV3=4 MSV3=5 MSV4=1 No Econ No Econ Default Setting: = 1 MSV4=2 Mod Econ Mod Econ MSV4=3 MSV4=4 MSV4=5 MSV5=1 Unused Unused MSV5=2 Fan Status Fan Status MSV5=3 Disch Air Temp Disch Air Temp MSV5=4 MSV5=5 MSV6=1 Not Used No Aux Heat MSV6=2 MSV6=3 Aux Heat w/comp OAT Lockout Aux Heat w/o comp OAT Lockout MSV6= Emerson Climate Technologies, Inc. 22

23 Object RTU - 2H/2C HP - 1 or 2 Stages Comments Read Only Enable MSV6=5 MSV7=1 Auto Auto MSV7=2 Heating Heating MSV7=3 Cooling Cooling MSV7=4 Off Off MSV7=5 Emer Ht MSV8=1 Not Used Not Used MSV8=2 MSV8=3 MSV8=4 MSV8=5 MSV9=1 Standard Standard MSV9=2 Hospitality Hospitality MSV9=3 Locked U/I Locked U/I MSV9=4 MSV9=5 MSV10=1 Auto {B} Auto {B} MSV10=2 Heat {H} Heat {H} MSV10=3 Cool {C} Cool {C} MSV10=4 Off {B} Off {B} MSV10=5 MSV11=1 Auto Auto MSV11=2 On On MSV11=3 MSV11=4 MSV11=5 MSV12=1 Not Used Not Used MSV12=2 MSV12=3 MSV12=4 MSV12=5 MSV13=1 Normal Normal MSV13=2 Standby Standby MSV13=3 Pre-Purge Pre-Purge MSV13=4 Startup Startup MSV13=5 Recovery Recovery MSV13=6 Override Override MSV14=1 Disabled Disabled MSV14=2 Basic Basic MSV14=3 Standard Standard MSV14=4 Advanced Advanced MSV14= Emerson Climate Technologies, Inc. 23