IPSUM » COMMISSIONING GUIDE. IPSUM Optimizer IPSUM Connection unit IPSUM Router AIR COMFORT AIR MANAGEMENT IPSUM OPTIMIZATION SYSTEM

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1 AIR COMFORT AIR MANAGEMENT OPTIMIZATION SYSTEM» COMMISSIONING GUIDE Optimizer Connection unit Router

2 Content 1 Introduction Web interface Compact mode Step by step guide Full mode Step by step guide Setting up the network for Modbus for Addressing the components STRA-04 and STRA-14 Room controllers Compact controllers 227VM and 227PM Optimizer and Router Connecting to the web server Commissioning mode, Optimizer Log in to Optimizer Admin settings General settings Settings AHU Settings Setting up eq, eql & eq for Building Management Settings Users/Groups Optimization settings Settings for Pressure Optimization General settings Linear Optimization Mode Step Optimization Mode Settings for Temperature Optimization scan Fläkt Woods 9403 GB We reserve the right to alter specifications.

3 1 Introduction This document contains information, guides and tips which are needed for commissioning the system. In this document there is a brief overview to the Modbus protocol, how to set up the Modbus network for including detailed information how to set the Modbus parameters for each of the products, how to connect to the building management system, how to control an air handling unit and detailed information how to select optimization variables and system settings. Separate documentation is also available for Cabling, Installation and Operating & Maintenance as well as datasheets. For installation, setting up functionalities and detailed product information, please see separate documents. 1.1 Web interface The system has a built-in web interface. This interface is used to change settings, monitor system status and monitor energy savings. The interface is designed to be simple to use showing only the essential information. Figure 1. Web interface Fläkt Woods 9403 GB We reserve the right to alter specifications.

4 1.2 Compact mode Step by step guide This Chapter and the next Chapter helps you to outline steps which are needed when the commissioning takes place. Please go through each step of the list carefully. 1. Connect the components, check that the connections are all correct and switch on the power, see separate Installation Guide. 2. Set Modbus addresses and communication parameters for each component in the sys tem, see Chapter 2.1 in this document. The communication parameters must be the same for all devices on a Modbus Serial line. 3. Set hardware settings (sensors connected, output signals, etc.) for room controllers, see STRA-manuals 4. Connect your computer to the Optimizer, see Chapter in this document 5. Set date and time, see Chapter 3.1 in this document 6. Set system mode to Compact, see Chapter 3.2 in this document 7. Set communication to the air handling unit, see Chapter 3.3 in this document 8. Set BMS/SCADA settings if necessary, see Chapter 3.4 in this document 9. Create user accounts and change default passwords or remove the default users, see Chapter 3.5 in this document 10. Set basic Optimization settings, see Chapter 4.1 for pressure optimization and Chapter 4.2 in this document for temperature optimization 11. Run Scan, see Chapter 5 in this document 12. Fix possible errors and check from the web view that all products and accessories were found correctly. Run Scan again if any issues were found. 13. Rename rooms and branches, and adapt the web interface view, see Operation & Maintenance manual 14. Set pressure, flow, temperature, etc. settings and setpoints for each device, see Operation & Maintenance manual 15. Fine tune the optimization parameters if necessary 16. Fill in the commissioning protocol 1.3 Full mode Step by step guide 1. Connect the components, check that the connections are all correct and switch on the power, see separate Installation Guide 2. Set Modbus addresses and communication parameters for each component in the system, see Chapter 2.1 in this document. The communication parameters must be the same for all devices on a Modbus Serial line 3. Set hardware settings for room controllers (sensors connected, output signals, etc.), see STRA-manuals 4. Connect your computer to the Optimizer, see Chapter in this document 5. Set Routers communication settings, see Chapter in this document 6. Set date and time, see Chapter 3.1 in this document 7. Set system mode to Full, see Chapter 3.2 in this document 8. Set communication for the air handling unit, see Chapter 3.3 in this document 9. Set BMS/SCADA settings if necessary, see Chapter 3.4 in this document 10. Create user accounts and change default passwords or remove the default users, see Chapter 3.5 in this document 11. Set basic Optimization settings, see Chapter 4.1 for pressure optimization and Chapter 4.2 in this document for temperature optimization 12. Run Scan, see Chapter 5 in this document 13. Fix possible errors and check from the web view that all products and accessories were found correctly. Run Scan again if any issues were found. 14. Rename rooms and branches, and adapt the web interface view, see Operation & Mainte nance manual 15. Set pressure, flow, temperature, etc. settings and setpoints for each device, see Operation & Maintenance manual 16. Fine tune the optimization parameters if necessary 17. Fill in the commissioning protocol Fläkt Woods 9403 GB We reserve the right to alter specifications.

5 2. Setting up the network for In this Chapter you will find information on how to set up the network for the system, how communication parameters for each of the components are set, how to connect to the web interface and how to modify the view of the web interface. 2.1 Modbus for Modbus is a widely used, openly published and a royaltyfree Master-Slave serial line communication protocol. The system uses Modbus protocol to communicate between components such as Optimizer to Routers, Optimizer/Routers to room controllers and dampers/diffusers as well as to gather information from the system. The Modbus specification defines transmission protocol, the structure of the message and the transmission modes. All serial parameters must be the same for all devices on a Modbus Serial line. Adjustable serial parameters in the system are baud rate, parity and stop bits. These need to be set separately for each device. The transmission modes are RTU and ASCII. Default transmission mode for all Fläkt Woods products is RTU. The devices must also have an individual address. Modbus Serial Master-Slave protocol means that only one master device can be connected to the bus at a Addressing the components Addresses in a slot must be set so that in Slot 1 the address of the controller is 1 and the addresses of the products are 2 (Supply) and 3 (Extract), in Slot 2 the address of the controller is 6 and the addresses of the products are 7 (Supply) and 8 (Extract), etc. The printime. The master will first send a request message and then listen for the reply from the slave. In compact mode, Optimizer is master to products on the system side. In a full mode, Optimizer is master to the Routers and the Routers are masters to products on the system side, and thus the Optimizer does not have direct contact to the components. The Modbus specification specifies that a transmission line must be terminated near each of the 2 ends of the bus to avoid reflection. Optimizer, Router and Connection Unit s have built-in terminal resistors. The termination can be activated by switching on a dip-switch. has multiple automatic functions to ensure that setting up the system is as simple as possible. The system identifies the components connected to the internal communication bus and there are clever rules to check that components are correctly connected. ciple of the addressing is illustrated in Figure 2. If the product seen in the Figure is not installed in the system, the address is left unused. If a room/branch have more than 1 supply or extract damper, the address for the extra dampers must be taken from next slots. Figure 2. Addressing for Fläkt Woods 9403 GB We reserve the right to alter specifications.

6 Example 1: A branch with 1 supply pressure damper and 1 extract pressure damper, and a room with a room controller, 1 VAV supply damper and 1 VAV extract damper. Branch: An address of the supply pressure damper is 2 and an address of the extract pressure damper is 3 Room: An address of the room controller is 6, an address of the supply damper is 7 and an address of the extract damper is 8. Figure 3. Example 1: Modbus addresses for a branch and a room Fläkt Woods 9403 GB We reserve the right to alter specifications.

7 Example 2: A system contains a room 1 with 2 VAV supply dampers, 1 VAV extract damper and 1 room controller, and a room 2 with 1 CAV supply damper and 1 CAV extract damper. Room 1: An address of the room controller is 1, an address of the first supply damper is 2, an address of the second supply damper is 7 and an address of the extract damper is 3. Room 2: An address of the supply damper is 12 and an address of the extract damper is 13. Figure 4. Example 2: Modbus addresses for VAV room and CAV room Fläkt Woods 9403 GB We reserve the right to alter specifications.

8 2.1.2 STRA-04 and STRA-14 Room controllers STRA-04 and STRA-14 are room controllers which handle heating, cooling and ventilation. The room controllers ensure that the room air climate meets the requirements in the most energy efficient way. STRA-04 is optimized for Variable Air Volume applications and STRA-14 is optimized for Chilled Beam applications. Changing parameters The communication parameters can easily be set in a parameter menu shown on the display using the buttons of the controller. This parameter menu is accessed by simultaneously pressing the INCREASE and DECREASE buttons for about 5 seconds until the Service indication lights up in the display and after that, pressing the INCREASE button twice. A parameter number (P01, P02, P03, etc.) is shown in the parameter menu. The parameters are scrolled by pressing the INCREASE and DECREASE buttons. When the right parameter has been selected, press the Function button. The parameter value will be shown and the parameter number will disappear. The parameter value is changed using the INCREASE and DECREASE buttons, and the change is confirmed with the Function button. Before con- firming the change by pressing the Funtion button, he original value can be retrieved by simultaneously pressing the INCREASE and DECREASE buttons. The original value will be shown on the display. Pressing simultaneously INCREASE and DECREASE buttons while the parameter menu is active will return the controller to the main display. This will also happen after 1 minute of inactivity or by selecting the EXIT option with the INCREASE and DECREASE buttons and then pressing the Function button. Figure 5. Buttons of the Room Function button INCREASE DECREASE Modbus parameters The communication parameters are presented in Table 1. The Address of the room controllers must be changed according to Section and the baud rate checked/changed as below. Default values for Modbus timeout and Modbus response delay are recommended minimums. Parameter number Description Values Type STRA Default 69 Modbus address N/A Set by production Configuration for 70 Modbus parity 0=None, 1=Odd, 2=Even N/A Modbus Timeout Milliseconds Modbus Response Delay 114 Port Mode 119 Communication speed Table 1. Modbus Settings for STRA room controllers 0=EXOline/Modbus, 1=BACnet 0=9600, 1=19200, 2=38400, 3=76800 (BACnet) As Milliseconds 5 5 N/A 0 0 N/A 0 1 Functional settings After setting the communication parameters, set functional parameters such as Operation Mode, setpoints, etc, if necessary. For more information, see STRA documentation or contact Fläkt Woods technical support. Fläkt Woods 9403 GB We reserve the right to alter specifications.

9 2.1.3 Compact controllers 227VM and 227PM Fläkt Wood s compact controller 227VM is a complete unit comprising an actuator, a dynamic differential pressure sensor for pressure-independent control and user interface with 3-digit display which enables monitoring the air flow and setting up values without the need for any external equipment. (1) (2) (3) Fläkt Wood s compact controller 227PM is a complete unit comprising an actuator, a dynamic differential pressure sensor for pressure-dependent air flow control and a user interface with a 3-digit display which makes it possible to monitor pressure and set values without the need for any external equipment. Figure VM User Interface The compact controllers are used to control air flow to and from the rooms or branches. A setpoint for the controllers can be set via the IPSUM web interface or the room controller. User interface The User interface on the 227VM is seen in Figure 6 and the user interface on the 227PM is seen in Figure 7. The user interfaces have three parts; value selector (1), function selector (2) and display (3). (1) (2) (3) Figure PM User Interface Modbus parameters Modbus address is set by turning the function selector to Adr and then turning the value selector to get the desired address. After the value flashes twice, the value is stored. Default address is 1. Modbus communication parameters are located in a sub-menu. The sub-menu is accessed by turning the function selector to Adr and then turning the value selector until the parameter 2in is seen on the display. When the sub-menu is open, a small circle can be seen on the display. When the Function selector is turned to Adr in submenu, the communication parameters can be set with the value selector. Default Modbus settings Communication Speed and Even parity corresponding to number 5 in Adr. Parameter location Adr Sub-menu Adr Description Values Default Modbus address Communi cation parameters 5 = 19.2kbaud, Even parity and 1 stop bit Table 2. Modbus Settings for 227PM and 227VM 1 Use with IPSUM As Chapter Functional settings For more information, see documents EMSS and EMPA documentation or contact Fläkt Woods technical sales support. Turn the Function selector to Flow in 227VM or to Pres/Unit in 227PM to exit from the sub-menu. Fläkt Woods 9403 GB We reserve the right to alter specifications.

10 2.2 Optimizer and Router This Section shows how to connect to the web server, how the Optimizer and Router are connected and how the system communication parameters are changed. Settings for connecting to the air handling unit and building management system are detailed in Chapters 3.3 and Connecting to the web server Connection to the web interface is handled via the Supervisor Ethernet port. The web server supports both static and DHCP addressing. The default is that DHCP addressing is activated. The NetBIOS name of the Optimizer and Router is fwg-ipsum-xxxx, where xxxx is unique for each device and is made up of the last 4 digits of the MAC address. The MAC address can be found in a sticker located on the side of Optimizer. To connect to the Optimizer s in-built web pages you connect a computer directly to the Optimizer s supervisor ethernet port using a crossover patch cable. Connect the Optimizer to a network with fixed IP addresses or to a network using DHCP where the Optimizer is given an IP address (default). If a fixed IP address is needed to get first contact with the Optimizer to setup any of the above then Optimizer can be put in to Commissioning mode using the Comm/Reset push button. Figure 8. Sticker located on the side of the Optimizer Commissioning mode, Optimizer The Supervisor Ethernet Port can also be forced to a fixed address for a period of time to allow connecting a computer directly with a crossover cable for commissioning or diagnostics with a following procedure: Press Comm/Reset-button (item 10 in Figure 9) for 5 seconds to put Optimizer to Commissioning mode. s green LED will flash when the Optimizer is in the Commissioning mode Connect one end of the cross-over cable to Optimizer Ethernet port (item 3 in Figure 9) and another end to computer s Ethernet port. Ethernet ports green and yellow LEDs will be lit when the cable is connected Write IP-address to browser s address bar to open a log in page Fixed IP-address in the commissioning mode is and Supervisor port Modbus communication parameters are 19,200 baud rate, Even Parity, 1 Stop bit and address vac/dc PE N L GO/-G/+ GO/-G/+ Ethernet Alarm C 230vac/ In 24vac/dc 24vac/dc Output In Out Fire Free Cooling 230vac Power Supervisor Active C B/- A/+ Supervisor IPSUM Optimizer Air Handling Unit / Air Handling Unit SA Fan EA Fan Temp 0-10v 0-10v 0-10v Comm/ Ethernet Active A/+ B/- C SD Card Reset HMI Ethernet Active A/+ B/- C Figure 9. Commissioning mode 13 Fläkt Woods 9403 GB We reserve the right to alter specifications.

11 2.2.3 Log in to Optimizer Login screen is seen in Figure 10. Language of the web pages can be changed from drop -down menu in top right corner. Log in with username superadmin (password = superadmin) when doing the commissioning. All pages and fields are visible only for superadmin user group. Figure 10. Web page log in page Addressing the Routers for network: The Optimizer is connected from the port to the Router s Optimizer/Supervisor Port, see Figure 11. Routers default communication parameters for the port in a full mode are 38,400 baud rate, Even Parity, 1 Stop bit and address 1. Note that all Routers connected to network must have unique Modbus address and therefore the default address must be reviewed. To set the address, connect the computer to Router s Optimizer/Supervisor port. Use Modbus master software, such as Modbus Poll, to communicate to the Router. Write desired address to Router s holding register 51. If the address or the communication parameters is unknown, the Router can be set to the commissioning mode for a period of time by holding the Comm/ Reset button for 5 seconds. Supervisor port s Modbus communication parameters in the commissioning mode are 19,200 baud rate, Even Parity, 1 Stop bit and address 40. PE N L 24vac/dc GO/-G/+ GO/-G/+ Ethernet Alarm C 230vac/ In 24vac/dc 24vac/dc Output In Out Fire Free Cooling 230vac Power Supervisor Active Supervisor IPSUM Optimizer Air Handling Unit / Air Handling Unit SA Fan EA Fan Temp 0-10v 0-10v 0-10v Comm/ Ethernet Active A/+ B/- C SD Card Reset HMI Ethernet Active A/+ B/- C PE N L 24vac/dc GO/- G/+GO/-G/+ Ethernet 230vac/ In 24vac/dc24vac/dc 1 In Out 230vac Power Ethernet 2 In Active Out PE N L 24vac/dc GO/- G/+GO/-G/+ Ethernet 230vac/ In 24vac/dc24vac/dc 1 In Out 230vac Power Ethernet 2 In Active Out IPSUM Router IPSUM Router SD Card Comm/ Reset HMI Active A/+ B/- C Active A/+ B/- C SD Card Comm/ Reset HMI Figure 11. Optimizer to router TIA/EIA (RS)-485 Fläkt Woods 9403 GB We reserve the right to alter specifications.

12 PE N L 24vac/dc GO/-G/+ GO/-G/+ Ethernet Alarm C 230vac/ In 24vac/dc24vac/dc Output In Out Fire Free Cooling Ethernet 230vac PE N L 24vac/dc GO/-G/+ GO/-G/+ Ethernet Alarm C 230vac/ In 24vac/dc 24vac/dc Output In Out Fire Free Cooling 230vac Ethernet Active A/+ PE N L 24vac/dc GO/-G/+GO/-G/+ Ethernet 230vac/ In 24vac/dc24vac/dc 1 PE N L 24vac/dc GO/-G/+GO/-G/+ In Out Ethernet 230vac/ In 24vac/dc 24vac/dc 1 230vac In Out 230vac C Active C SA Fan EA Fan Temp 0-10v 0-10v 0-10v Comm/ SD Card Reset HMI Ethernet SA Fan EA Fan Temp 0-10v 0-10v 0-10v Comm/ SD Card Reset HMI Ethernet Ethernet 2 Ethernet 2 SD Card SD Card Comm/ Comm/ Reset Reset HMI HMI Active Active A/+ B/- C Active A/+ B/- C Active Active In Active In A/+ C C B/-Out A/+ Out PE N L 24vac/dc GO/- G/+GO/-G/+ Ethernet 230vac/ In 24vac/dc24vac/dc 1 In Out 230vac Ethernet 2 PE N L 24vac/dc GO/-G/+GO/-G/+ Ethernet 230vac/ In 24vac/dc 24vac/dc 1 In Out 230vac SD Card Comm/ Reset HMI Active Ethernet In 2 Active SD Card Out HMI In PE N L 24vac/dc GO/-G/+GO/-G/+ Ethernet 230vac/ In 24vac/dc 24vac/dc 1 Active In Out Out 230vac B/- Active A/+ B/- C Ethernet 2 SD Card Comm/ Reset HMI In Active Active A/+ B/- A/+ B/- B/- Active A/+ B/- C Active A/+ B/- C A/+ Comm/ B/- C Reset C Out Commissioning Ethernet The Optimizer can be connected directly to Routers by connecting the Ethernet port to the Router s Optimizer/Supervisor Ethernet Port, see Figure 12. The Optimizer will automatically set the addresses for the Routers. When the Routers are connected to an Optimizer only via ports, Shared TCP/IP Network (Admin -> ) should be inactivated (see Chapter 3.2). PE N L 24vac/dc GO/-G/+ GO/-G/+ Ethernet Alarm C 230vac/ In 24vac/dc 24vac/dc Output In Out Fire Free Cooling 230vac Power Supervisor Active Supervisor IPSUM Optimizer Air Handling Unit / Air Handling Unit SA Fan EA Fan Temp 0-10v 0-10v 0-10v Comm/ Ethernet Active A/+ B/- C SD Card Reset HMI Ethernet Active A/+ B/- C PE N L 24vac/dc GO/-G/+GO/-G/+ Ethernet 230vac/ In 24vac/dc 24vac/dc 1 In Out 230vac Ethernet 2 In Active Out PE N L 24vac/dc GO/-G/+GO/-G/+ Ethernet 230vac/ In 24vac/dc 24vac/dc 1 In Out 230vac Ethernet 2 In Active Out Power Power IPSUM Router IPSUM Router SD Card Comm/ Reset HMI Active A/+ B/- C Active A/+ B/- C SD Card Comm/ Reset HMI Figure 12. Optimizer to Router, direct The Router can be also connected to the client/ private network, see Figure 13. The Router supports DHCP. When the Routers are connected to Optimizer also via client s Ethernet, Shared TCP/IP Network (Admin -> ) must be activated (see Chapter 3.2). Power IPSUM Optimizer Power Supervisor Supervisor Air Handling Unit Supervisor Air Handling Unit / Supervisor Client s ethernet BMS SCADA Ethernet IPSUM Optimizer Air Handling Unit / Air Handling Unit Power Power Power Power Power IPSUM IPSUM Router IPSUM Router IPSUM Router IPSUM Router Figure 13. Optimizer to Router, shared network Active Fläkt Woods 9403 GB We reserve the right to alter specifications.

13 3. Admin settings Admin settings are found on the ADMIN page. Admin settings define how different connections and external communication are is handled and what kind of permission Users and User Groups have. The Optimization Settings are also in the ADMIN area. Incorrectly set Optimization Settings can harm the ventilation system. For security and safety reasons, it is essential to check all the Admin settings. Note that not all admin pages and tabs are visible for all user groups. Figure 14. Admin tabs 3.1 General settings Set date by pressing calendar icon and time by pressing clock icon. (Fig 15) Clear Alarm Memory clears all alarms from the memory. Clear alarms from the memory when the commissioning is finished. Then the alarms tripped during the commissioning will not confuse users later. Figure 15. General settings view 3.2 setting mode is set in -tab. Default is Compact mode. No Routers are allowed when the mode is Compact. (Fig.16) The system mode can be changed by pressing pencil. This opens drop-down menu where the system mode can be selected. Figure 16. settings view Shared TCP/IP Network box will appear when Full (Up to 300 Slots) with Routers is selected and saved. (Fig.17) Shared TCP/IP network can be activated or inactivated by pressing the pencil. Select Inactive if the Optimizer is connected to Routers only via RS/ and/or directly. Then the Optimizer will not search for the Routers in the shared network during the scan. (Fig.18) Figure 17. Updating mode Figure 18. Full system mode view Fläkt Woods 9403 GB We reserve the right to alter specifications.

14 Set Shared TCP/IP network to Active when there are Routers in the same shared network as the Optimizer. The Optimizer will search for the Routers in RS/, direct network and shared network during the scan. (Fig. 19) Figure 19. Activating Shared TCP/IP Network 3.3 AHU Settings The Optimizer can be connected to an air handling unit via Modbus RTU, Modbus TCP or analogue signals. When the Communication Type is set to None, the air handling unit is controlled via analogue 0-10V signals. The analogue signals are always available despite the communication type selected. (Fig. 20) Figure 20. Air handling unit Communication view The Communication Type can be changed by pressing the pencil. This opens drop -down menu. Set correct communication type according to the system. (Fig. 21) After settings are done, use Test Communicationbutton to check the communication to the air handling unit. The test communication-button is visible if the communication type is not set to None. (Fig. 22) Figure 21. Changing Communication Type Figure 22. Test communication sequence Setting up eq, eql & eq Prime for Fläkt Woods eq, eql & eq Prime air handling units are ready to be used in the system directly. The integration just needs to be activated in the AHU menu as below. 1) Log in using the service password. (Contact Fläkt Woods support for service password) 2) Go to: Main Index -> Configuration -> Integrations -> IPSUM and change from No to Yes. 3) Scroll down to Reset required!! and restart the controller by changing it to Execute. Figure 23. Changing communication port (eq/eql/eq Prime) Communication between eq/eql/eq Prime and the Optimizer have options Ethernet and EIA/RS-485. Use EIA/RS-485 when the air handling unit is connected to the Optimizer port. The Optimizer uses the air handling unit s default communication parameters and are not changeable. (Fig. 23) Fläkt Woods 9403 GB We reserve the right to alter specifications.

15 When the communication port is selected to Ethernet, the network type can be selected to be Shared or Direct. (Fig. 24) Use Direct when the air handling unit is connected directly to the Optimizer s Air Handling Unit Ethernet port. Use Shared when both the air handling unit and the Optimizer are connected to the clients Shared Ethernet Network. IP-address or WINS name of the air handling unit is needed in the shared network type. (Fig. 25) Use IP-address only if the DHCP-server is set to give always the same IP-address to air handling unit. Use WINS name if the IP-address is not constant. Figure 24. Updating network type (eq/eql/eq Prime, ethernet) Figure 25. Setting up AHU IP/WINS 3.4 Building Management Settings The Supervisor port is where the BMS/SCADA connects to the Optimizer. The protocol can be Modbus RTU, Modbus TCP. Communitation protocols and communication parameters can be set easily via the web interface. The protocol is selected from the drop -down menus. Serial bus parameters are set on EIA/RS-485 subtab. Figure 26. BMS/SCADA-settings EIA/RS-485 view, Modbus/RTU The default communication parameters for Modbus RTU are address 69, Baud Rate, Even Parity and 1 Stop Bit (Fig.26). The parameters can be set by pressing the pencil next to fields. This opens Update settings-dialog box, from where the address, Baud rate and parity can be set. The number of stop bits is automatic set to be 1 when parity is selected to be even or odd. When the parity is selected to be none, number of the stop bits can be selected to be 1 or 2. (Fig. 27) Figure 27. Updating Modbus/RTU settings Fläkt Woods 9403 GB We reserve the right to alter specifications.

16 Network settings are located on Ethernet sub-tab. (Fig. 28) When DHCP is set to Active, the Optimizer will ask IP-address and other network settings from the network server. Modbus port is the only editable field on the left column when DHCP is set to Active. Change the Modbus port if the default port is blocked by the network administrator. When DHCP is set to Inactive, the user sets the network settings for the Optimizer. Pressing pencil next to values opens Update Settings-dialog box. The editable fields are IP-address, Subnet Mask, Gateway Address and Modbus Port. (Fig. 29) Figure 28. BMS/SCADA-settings Ethernet view It is possible to limit the devices on the network that the Optimizer responds to in both DHCP modes. Limitations are set to Allowed Master IP Address and Allowed Master Subnet Mask. (Fig. 30) Default setting are This means that the Optimizer will respond to requests from any IP address. Set the limitations if the Optimizer is in a shared network, if it is unwanted that all user from the network can communicate with the Optimizer. Figure 29. DHCP Inactive, updating settings Figure 30. Updating settings for allowed Master 3.5 Users/Groups User profiles are managed from the Users/Groups tab. The default users are seen in Figure 31. The default password for a username is the same as the username. Figure 31. Default usernames Fläkt Woods 9403 GB We reserve the right to alter specifications.

17 Last two columns in the table are for managing the users. Pencil opens Edit User-dialog box and Recycle bin opens Delete User-dialog box, see Figure 33. Change default passwords for all default users or remove the default usernames. A new user can be added by pressing Add Userbutton. This opens Add user-dialog box. Username, password, name and role are required for all users. (Fig. 34) Figure 32. Managing users Figure 33. User dialogs Figure 34: Add User Fläkt Woods 9403 GB We reserve the right to alter specifications.

18 4. Optimization settings The Optimizer can be set to control supply air temperature, supply air flow and extract air flow independently with minimal energy consumption while keeping a comfortable room climate. All settings can be easily adjusted from the web pages. Optimization settings are located on the ADMIN page under the Optimization tab. Figure 35. Optimization Settings in the web page 4.1 Settings for Pressure Optimization Pressure optimization is found in Admin -> Optimization Setting -> Pressure. The basic principle of pressure optimization is that checks for the opening of the blade from each damper in the system and determines the most open. The Optimizer calculates a new setpoint for an air handling unit based on the maximum opening, gradually making the most open damper correspond to the optimization setting. The pressure optimization has a linear optimization mode and a step optimization mode. The linear optimization is based on PI-algorithm. The step optimization is based on constant control steps after a constant waiting time. Linear Optimization mode is recommended. Linear optimization is more effective than step optimization, because a size and timing of the control action is not beforehand defined and I-term removes steady-state control error. Although, tuning of the linear optimization is more complex and with poorly chosen tuning parameters the system could become unstable. To achieve a stable and effective system, the optimization parameters need to be carefully selected. The values are dependent on the system where is installed. Default values are selected to be a safe choice for most applications, but for some applications, the response of the system may not be as fast as it could be. An unnecessary slow system is not using its entire potential and therefore not all possible energy savings are achieved, and thus fine tuning of the variables would be needed. The fine tuning of the control parameters is always a tradeoff between stability and speed. An oscillating control signal to air handling unit or an oscillating airflow from the air handling unit with unwanted high amplitude are clear indicators that the control needs to be slowed down. If the system is not oscillating and the optimization is not reacting fast enough to changing demands, then faster setup values may be required. On the next page is some more detailed information on the settings and the effects they can have. Figure 36. Updating pressure optimization function Fläkt Woods 9403 GB We reserve the right to alter specifications.

19 4.1.1 General settings Parameters presented in this Section are common for both Linear and Step mode. Communication to an air handling unit can be handled via analogue 0-10V signal or via serial communication. In the following, the term IO refers to analogue and Protocol refers to serial. Pressure function The Pressure Optimization function has the options inactive, linear and step. Inactive mode is the default mode. Startup Mode The startup mode has the options % and Pa. The default setting is Pa. Start Levels The Optimizer is constantly monitoring the system to determine if the air handling unit is running and the system is operating normally. This is done by calculating the totalised airflow from the system and by monitoring pressure of the pressure dampers. When the totalised airflow first exceeds the Start Flow Level or pressure exceeds Start Pressure Level, then and the Optimizer initiates Start-up mode. The variables are set to protect the system, Start Level prevents unwanted start-ups, and therefore the values should not be set to 0 and they must be above corresponding Stop Levels. Unit Pa Default 10 Range Unit l/s Default 40 Range Stopped Levels The Optimizer stops regulating when both the totalised airflow is below the value of Stopped Flow Level and pressure is below Stopped Pressure level. The values are dependent on the size of the system. The variables are set to protect the system. Otherwise, the control signal would increase to its maximum when the air handling unit is not running. The values should not be set to 0 l/s and they must be lower than corresponding Start Levels. Unit Stopped pressure level Pa Default 0 Range Unit Stopped flow level Default 0 l/s Range Startup Delay When the Optimizer goes to Start-Up mode, a timer will start. Until the timer reaches the value of Startup Delay, a constant Start up setpoint is sent to the air handling unit. After the timer goes above the delay, normal optimization begins. Start up delay should be longer than the time required for the air handling unit to reach the Start Up setpoints (see below). Otherwise unwanted oscillation might occur during the start-up process. Unit Seconds Default 600 Range Startup Protocol Setpoint / Startup IO Setpoint During the start up, the control value from the Optimizer to the AHU is kept at a constant Startup setpoint value. If you use protocol values then select Start-Up mode to Pa. Unit When start up mode = Pa Pa Default 50 Range If you use analog output then select Start-Up mode to percentage. When start up mode = % Unit % Default 20 Range The setpoint should be selected close to the nominal operation point. Selecting the setpoint close to the nominal operation point will reduce the time for the system to achieve a stable situation. Although, setting the exact Start up setpoint is not necessary. The will eventually reach the optimal operation point. Fläkt Woods 9403 GB We reserve the right to alter specifications.

20 Damper setpoint The Optimizer controls the air flow, so that an opening of the most open damper is equal to the Damper Setpoint. Energy efficiency can be increased by increasing the Damper Setpoint. However, high setpoint means less room to manage unexpected disturbances. Higher setpoint also means more fluctuation, because small changes in blade position at damper blade end positions will have less effect to the air flow than in the middle of damper blade range. Therefore, the system can be stabilized by reducing the Damper Setpoint. Recommended setpoint should not exceed 90%. Unit % Default 80 Range Protocol Setpoint Lower Limit The lower limit is the lowest pressure value [Pa] which the Optimizer will send to the air handling unit. The lower limit must be lower than the Upper limit and lower than the start-up setpoint. Unit Pa Default 10 Range The upper limit is the highest analogue value [%] which the Optimizer will send to the air handling unit. 0 % corresponds to 0V and 100 % to 10V. The default value is 100 %. Setting the Lower Limit to 20 % and the Upper limit to 80 %, the operation range of the analogue control signal will be 2-8V. Protocol Deviation and IO Deviation The protocol control signal will be updated only if a new control signal differs from the previous control value by more than Protocol Deviation. Unit of the Protocol Deviation is Pa. The default value is 1 Pa. The analogue control signal will be updated only if a new control signal differs from the previous control value by more than IO Deviation. Unit of the IO Deviation is percent of IO setpoint Lower and Upper Limits. The default value is 1 %. The deviation can be used to slow down the system and prevent the system constantly moving up and down. The size of the deviation is limited by the largest acceptable step of the control signal Linear Optimization Mode P-Gain and I-Gain are parameters of PI-algorithm. These are the parameters which have the most effect for stability and efficiency of the optimization. Separate values can be set for supply and extract air, and when air flow is increased or decreased. Fläkt Woods recommends that the parameters for increasing air flow are selected to be higher than for decreasing air flow. This allows the Optimizer to react more aggressive if a demand for the fresh air is increasing rapidly, and thus guarantee that there will be always enough fresh air. Protocol Setpoint Upper Limit The upper limit is the highest pressure value [Pa] which the Optimizer will send to the air handling unit. The upper limit must be higher than the lower limit. Unit Pa Default 3000 Range Protocol Deviation and IO Deviation The protocol control signal will be updated only if a new control signal differs from the previous control value by more than Protocol Deviation. Unit Protocol Deviation Pa Default 0 Range The analogue control signal will be updated only if a new control signal differs from the previous control value by more than IO Deviation. Unit of the IO Deviation is percent of IO setpoint Lower and Upper Limits IO Deviation Unit % Default 0 Range The deviation can be used to slow down the system and prevent the system constantly moving up and down. The size of the deviation is limited by the largest acceptable step of the control signal. The basic principle of the use of the Deviation is shown in Figure 37. The deviation is set to be 5 Pa and the limits are shown with red lines. A blue line is setpoint calculated internally in the Optimizer. First the calculated setpoint stays within the deviation limits and therefore a constant setpoint (150 Pa) is sent to the air handling unit. After a while, the calculated setpoint goes above the limits and that triggers the Optimizer to send a new setpoint to the air handling unit (156 Pa). Figure 37. Deviation Limits Fläkt Woods 9403 GB We reserve the right to alter specifications.

21 IO Setpoint Lower Limit The lower limit is the lowest analogue value [%] which the Optimizer will send to the air handling unit. 0% corresponds to 0V and 100% to 10V. The IO lower limit must be below IO upper limit and below IO start-up setpoint. Unit % Default 0 Range IO Setpoint Upper Limit The upper limit is the highest analogue value [%] which the Optimizer will send to the air handling unit. 0% corresponds to 0V and 100% to 10V. The IO upper limit must be higher than IO lower limit. Unit % Default 100 Range Example: Setting the IO Lower Limit to 20% and the IO Upper limit to 80%, the operation range of the analogue control signal will be 2-8V Linear Optimization Mode P-Gain and I-Gain are parameters of PI-algorithm. These are the parameters which have the most effect for stability and efficiency of the optimization. Separate values can be set for supply and extract air, and when air flow is increased or decreased. P-Gain P-term of the PI-controller is a proportional gain. The term is related to magnitude of the current error value. Increasing P-Gain will make the optimization to react more aggressively to changes in the system, but too high P-gain can make the system unstable. Supply air P-gain up default 250 P-gain down default 200 Range I-Gain I-term of the PI-controller is an integral gain. The term calculates cumulative error from magnitude and duration of the error. I-gain makes the control loop more accurate by removing a steady-state error. Increasing I-gain will remove the steady-state error faster, but the result might be higher overshoot and increase of settling time, and thus the system will be more unstable. Supply air I-gain up default 250 I-gain down default 200 Range Extract air I-gain up default 250 I-gain down default 200 Range Extract air P-gain up default 250 P-gain down default 250 Range Fläkt Woods 9403 GB We reserve the right to alter specifications.

22 4.1.3 Step Optimization Mode The Ramp Interval and IO step are tuning parameters of the step algorithm. These are the parameters which have the most effect on the stability and efficiency of the optimization. Separate values can be set for supply and extract air, and when air flow is increased or decreased. Ramp Interval When the time from the previous control action is more than the value in Ramp Interval, a new control action is made. Notice that keeping the control value the same is also a control action. The smaller the Ramp Interval is, the more often regulation is done and thus the faster the control reacts. However, if the Ramp Interval is smaller than time needed for the air handling unit and dampers to reach and stabilise to a new operation point, the system might become unstable. Unit Seconds Ramp up default 120 Ramp down default 180 Range IO step The IO step is a fixed size of a control action. The higher the IO step is, the faster the control reacts to varying demands. The highest step size is determined by the largest acceptable control action. If the IO step is selected to be too large, the system will start to fluctuate around the setpoint with unwanted high amplitude. Notice that if the IO step is higher than the IO deviation, the IO deviation is ignored. Unit % Default 5 Range Protocol Step Protocol step is a fixed size of a control action. The higher the Protocol step is, the faster the control reacts to varying demands. The highest step size is determined by the largest acceptable control action. If the Protocol step is selected to be too large, the system will start to fluctuate around the setpoint with unwanted high amplitude. Notice that if the Protocol step is higher than the Protocol deviation, the Protocol deviation is ignored. Unit Pa Default 5 Range Settings for Temperature Optimization The Temperature optimization is found under Admin -> Optimization Settings -> Temperature. The optimization can be selected active/inactive as required The basic principle of the Temperature Optimization is that monitors the cooling and heating demands from the system and calculates a totalized demand for those. Based on the totalized demand, the Optimizer adjusts a supply air temperature setpoint of the air handling unit and therefore minimizes the need for additional heating or cooling in the rooms. This can also reduce the required airflow to the rooms and thus reduce the fan energy even further. Figure 38. Updating temperature optimization settings In Figure 39 there is a simplified temperature control diagram. The temperature control has three operation areas. Each control point is determined by two adjustable variables Demand and Setpoint. The variables define amounts of the temperature compensation applied. Fläkt Woods 9403 GB We reserve the right to alter specifications.

23 The Neutral-zone is where no optimization is applied and is between Cooling start point and Heating start point. The Analogue output in the neutral-zone is 5V. The neural-zone is marked with a dashed line in the Figure. Heating Optimization starts when the totalized demand from the system is more than Heat Comp Start Demand. When the totalized demand is equal or more than Heat Comp Stop Demand, the control value is at its maximum. The Analogue output at its maximum is 10V. The temperature is adjusted linearly between these points. The area where the heating compensation is applied is marked with the red line in the Figure. Cooling Optimization starts when the totalized demand from the system is more than Cool Comp Start Demand. When the totalized demand is equal or more than Cool Comp Stop Demand, the control value is at its minimum. The Analogue output at its minimum is 0V. The temperature is adjusted linearly between these points. The area where the cooling compensation is applied is marked with a blue line in the Figure 39. Start Up Delay When the Optimizer engages Startup mode, a timer will start. Constant Startup setpoint is sent to the air handling unit until the timer reaches the value of Startup Delay. When timer exceeds, Startup Delay normal optimization begins. Startup delay should be longer that the time required for the air handling unit to reach the Startup setpoints (see below). Otherwise unwanted oscillation might occur during the start-up process. Unit Seconds Default 600 Range Heat Comp Start Demand and Heat Comp Stop Demand The Optimizer starts adjusting the temperature when the totalized heating demand is higher than Heat Comp Start Demand. The maximum compensation is achieved when the totalized demand is higher than Heat Comp Stop Demand. Notice that Heat Comp Stop Demand must be higher than Heat Comp Start Demand. Unit % Default start 60 Default stop 85 Range Figure 39. Temperature optimization Control diagram Startup Setpoint The output of the Optimizer temperature setpoint is kept in constant Startup Setpoint value until normal regulation starts. Startup Setpoint should be selected to be close to the normal operation point. This reduces the time needed to gain a steady system. The value must be set lower than Heating Compensation Start Temp and higher than Cooling Compensation Start Temp. Unit C Default 18 Range Cool Comp Stop Demand and Cool Comp Start Demand The Optimizer starts adjusting the temperature when the totalized cooling demand is higher than Cool Comp Start Demand. The maximum compensation is achieved when the totalized demand is lower than Cool Comp Stop Demand. Notice that Cool Comp Stop Demand must be higher than Cool Comp Start Demand. Unit % Default start 40 Default stop 75 Range Fläkt Woods 9403 GB We reserve the right to alter specifications.

24 Cool Stop Setpoint and Cool Start Setpoint Cool Start Setpoint determines the supply air temperature setpoint when the totalized demand is equal to Cool Comp Start Demand. Cool Stop Setpoint determines the supply air temperature setpoint when totalized demand is equal to Cool Comp Stop Demand. The temperature setpoint is adjusted linearly between the Start and Stop values. The values define the straight line between the points, and therefore define how much compensation is applied. The Analogue output is scaled such as Cool Start Setpoint is corresponding to 5V and Cool Stop Setpoint corresponds to 0V. Cool Stop Setpoint must be lower than Cool Start Setpoint. Unit C Default start 16 Default stop 12 Range Heat Comp Stop Setpoint and Heat Comp Start Setpoint Heat Start Setpoint determines the supply air temperature setpoint when the totalized demand is equal to Heat Comp Start Demand. Heat Stop Setpoint determines the supply air temperature setpoint when the totalized demand is equal to Heat Comp Stop Demand. The temperature setpoint is adjusted linearly between Stop and Start values. The values define the straight between the points, and therefore define how much compensation is applied. The Analogue output is scaled such as Heat Start Setpoint is corresponding to 5V and Heat Stop Setpoint corresponds to 10V. Heat Stop Setpoint must be higher than Heat Start Setpoint. Unit C Default start 22 Default stop 29 Range Fläkt Woods 9403 GB We reserve the right to alter specifications.

25 5. scan Next a Full system scan must be done. This will check the system and highlight any conflicts or errors with the communication, addressing, components used, components placement, etc. The Scan options are found by right-clicking the mouse on the Not configured item in the tree on the Overview tab, see Figure 40. The action is selected by left clicking the mouse on the desired option. Note that the Not configured will change to Home after the first full scan is made. Figure 40. Starting scan will show Scan results dialog after the system scan is finished. Check that all devices were found, fix possible errors and do scan again if any issues were found. The system is ready to be used if no errors are found and all devices are found from the system. Next see Operation & Maintenance manual for adapting the web view and using web page to adjust settings of the products installed to the system. Figure 41. Post Scan Results Fläkt Woods 9403 GB We reserve the right to alter specifications.

26 Notes Fläkt Woods 9403 GB We reserve the right to alter specifications.

27 Notes Fläkt Woods 9403 GB We reserve the right to alter specifications.

28 FWG-IPSUM Commissioning-GB GB Copyright 2014 Fläkt Woods Group WE BRING BETTER AIR TO LIFE IPSUM COMMISSIONING 9403GB With over a century of innovation and expertise to share with our customers, Fläkt Woods is a global leader in Air Technology products and solutions. We specialise in the design and manufacturing of a wide range of products and solutions for Air Movement, Air Treatment, Air Distribution, Air Management and Air Diffusion with focus on two major benefits Air Comfort and Fire Safety. With market presence in 65 countries we are in a unique position to be a local supplier and an international partner in our customer s projects. Our product brands such as SEMCO, eq, eq Prime, JM Aerofoil, Econet, Veloduct, Optivent, Optimix, Econovent and Cleanvent are well-known and trusted by customers all over the world to deliver high quality and energy efficient solutions.» To learn more about our offering and get in contact with your nearest sales representative please visit