Installation of CBV-2U4-3T(-N) ................7 Physical Installation of controller ........................7 Configuring the CBV-2U4-3T(-N) for BACnet communications....18 Configuring the CBV-2U4-3T(-N) controller ............ 21 Setting CBV-2U4-3T(-N) BACnet Commissioning Configuration Codes in CXproᴴᴰ ..... 21 Options ................................22 CBV-2U4-3T(-N) CONTROL SEQUENCES CBV-2U4-3T(-N) Control sequences ..............31 VAV Cooling only No Fan ..................31...
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Primary Air Mode .............................. 45 Load Shed Enable ............................45 Fire Stop Command ............................45 Purge Command .............................. 46 Writing the Command Mode to the CBV-2U4-3T(-N) ................46 BACnet communications status and Stand-Alone operation ............. 47 Temperature Control..................48 Control Modes..............................48 Cooling and Heating Offsets ........................
Check outside of the box for any physical damage. Contact the shipper immediately to report any shipping-related damage to the product. ABB is not responsible for damage to the product caused by shipping, either by a ABB -selected shipper or by a customer-specified shipping company.
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DampReverse (D230) R/W will need to be set to on (default off). Damper Adaption (CBV-2U4-3T only) Damper Adaption is a process whereby the actuator will drive one full cycle to its mechanical end-stop, after which the actuator’s working range will be adapted to the actual mechanical angle of rotation. This can be...
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CBV-2U4-3T(-N) for the network, the room sensors, and the elements of the VAV box (fan, heating coils, valve, and so forth). This section will go over the various wiring considerations for the CBV-2U4-3T(-N). Connecting Power to the CBV-2U4-3T(-N) CBV-2U4-3T(-N) requires 24 V AC +/- 15% at 55 VA (up to 12 VA internal power plus up to 43 VA supplied to Triac loads) maximum supplied from an externally mounted power transformer.
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Target or fieldbus of router. At the other end of the network, the last device must be “terminated” by either installing a 100 ohm to 120-ohm resistor or, if the last device is a CBV-2U4-3T(-N), users can switch the “Fieldbus Terminator”...
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U/I - 1 will typically be where the room temperature sensor is wired. This input is pre-configured to support a 10K Type III thermistor. All room sensors purchased from ABB are 10K Type III. Room sensors that short the thermistor for push button occupancy are supported with this controller.
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FusionAir Smart Sensor or the ABB Cylon CBT-STAT(-H). There is a dedicated port designed for these on the CBV-2U4-3T(-N), accessed by removing the top cover as illustrated below: Alternatively, the diagram below illustrates the connection between...
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CBV-2U4-3T-N controllers s can now be configured for reverse acting. IO POINTS DESCRIPTION DO-09 Damper Open/Close CBV-2U4-3T-N ONLY DO-10 Damper Close/Open CBV-2U4-3T-N ONLY DO-11 Stage Electric Heat (optional PWM) or Tri-State Heat Valve Open DO-12 Stage Electric Heat (optional PWM) or Tri-State Heat Valve Closed...
Installation Overview CBV-2U4-3T(-N) | CONFIGURING THE CBV-2U4-3T(-N) FOR BACNET COMMUNICATIONS CBV-2U4-3T(-N) is shipped with the following default settings: MS/TP Address: BACnet Instance Number 17101 MS/TP Baud Rate 38,400 bps Serial to PC Baud Rate 9600 bps To communicate to other MS/TP devices on a BACnet MS/TP network, the MS/TP address must be set to a unique address within the MS/TP subnet.
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If the wires are Note: swapped, it may cause damage to anything connected to the controller. If connecting directly to the CBV-2U4-3T(-N), use a UC32-PC commissioning cable by inserting the 9 pin D-Type...
UI-2 This input is typically going to be configured for set point slide adjust. This input will support a 5K POT to support room sensors ordered from ABB. If the room sensor does not have a slide adjust, then select none.
CBV-2U4-3T(-N) Control Sequences CBV-2U4-3T(-N) | 3 CBV-2U4-3T(-N) Control Sequences CBV-2U4-3T(-N) CONTROL SEQUENCES This section provides details of the typical control sequences used for most VAV applications. The sequences covered in this manual include the following: • VAV Cooling only No Fan •...
Setpoint Adjustment (optional 5K slider) UI-03 Discharge Temperature (optional) UI-04 , Humidity, or occupancy signal (all optional) UI-08 Flowrate Sensor DO-09 Damper Control (CBV-2U4-3T-N only) DO-10 Damper Control (CBV-2U4-3T-N only) DO-11 Electric Heat1 DO-12 Electric Heat2 (optional) DO-13 Parallel or Series Fan...
Setpoint Adjustment (optional 5K slider) UI-03 Discharge Temperature (optional) UI-04 , Humidity, or occupancy signal (all optional) UI-08 Flowrate Sensor DO-09 Damper Control (CBV-2U4-3T-N only) DO-10 Damper Control (CBV-2U4-3T-N only) DO-11 DO-12 DO-13 Parallel or Series Fan AO-14 Modulating Heat Control (0 10 Vdc) …...
OCCUPANCY STATES AND MODE COMMANDS OCCUPANCY STATE COMMAND The Occupancy State Command is written by the master controller to the CBV-2U4-3T(-N). It is one of several Writing the Command Mode to the commands in the GroupXOccCode (e.g. Group1OccCode) command. See on page 46.
Included in the GroupXOccCode command R/W • PurgeEffCmd (D226) RO WRITING THE COMMAND MODE TO THE CBV-2U4-3T(-N) The master controller must write an occupancy state to each CBV-2U4-3T(-N) or they will be left in the default occupied state at all times.
Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T(-N) | Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T strategy is available in both Imperial and Metric units. The tables in this Appendix list and describe the points in the Strategy, and gives the units in each...
Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T(-N) | ANALOG VALUES POINT SETPOINT OBJECTNAME DESCRIPTION UNITS AND DEFAULT VALUES BLOCK IMPERIAL STG. METRIC STG. RemoteSlaveDehumidCmd (A1) Remote dehumidification command setpoint 0 … 100 % OfflineTimerCommTestValueBACnet Required to write a 1 to this point...
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Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T(-N) | POINT SETPOINT OBJECTNAME DESCRIPTION UNITS AND DEFAULT VALUES BLOCK IMPERIAL STG. METRIC STG. LocalRemoteSlaveDehumidCalc (A79) Current dehumidification command 0 … 100% Group1TABCode (A80) Group 1 TAB code no-units no-units OutputConfigC_Bsbd (A84) VAV box configuration setpoint...
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Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T(-N) | POINT SETPOINT OBJECTNAME DESCRIPTION UNITS AND DEFAULT VALUES BLOCK IMPERIAL STG. METRIC STG. HeatMasterCalc (A174) Heat Master Calculated Percent HeatCapacityLimit (A175) Point used to limit heat capacity 0 … 100% EffFanSpeedCmd (A176) Current variable speed fan command 0 …...
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Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T(-N) | POINT SETPOINT OBJECTNAME DESCRIPTION UNITS AND DEFAULT VALUES BLOCK IMPERIAL STG. METRIC STG. during unoccupied mode. (FA Variants only) PriAirModeEnumeration (A208) Numerated value of primary air mode no-units no-units state. 0 = On...
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Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T(-N) | POINT SETPOINT OBJECTNAME DESCRIPTION UNITS AND DEFAULT VALUES BLOCK IMPERIAL STG. METRIC STG. PriAirPIDInteg (A237) with Actuator Primary air PID integral no-units no-units PriAirPIDInteg (A237) without Actuator Primary air PID integral no-units...
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Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T(-N) | SysMode (A327) Enumerated value for System Mode no-units no-units state: 0 = DB 1 = Heat 2 = Cool netOCC (A334) no-units no-units Enumerated value for Aspect Schedule Point netOCC: 0 = Vacant...
Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T(-N) | BINARY VALUES POINT SETPOINT OBJECTNAME DESCRIPTION ACTIVE INACTIVE DEFAULT VALUES BLOCK TEXT TEXT IMP STG. STG. CommunicationsStatus (D10) Communications with master controller failure if OfflineTimerEnaBACnet (D257) is enabled LocalDehumidControl (D12) Enabled if local dehumidification...
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Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T(-N) | POINT SETPOINT OBJECTNAME DESCRIPTION ACTIVE INACTIVE DEFAULT VALUES BLOCK TEXT TEXT IMP STG. STG. FanHeatMaxMan (D174) Fan Commanded to Max Heat Speed Manual Mode FanStandbyMan (D175) Fan Commanded to Standby Speed Manual Mode...
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Appendix : List of CBV-2U4-3T(-N) points CBV-2U4-3T(-N) | POINT SETPOINT OBJECTNAME DESCRIPTION ACTIVE INACTIVE DEFAULT VALUES BLOCK TEXT TEXT IMP STG. STG. UnoccHeatRequest (D241) Unoccupied heat request UnoccCoolRequest (D242) Unoccupied cool request Fusion_OvrReset (D251) with When toggled, the FusionAir sensor will reset all override timers.
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Appendix: List of DIP switch settings CBV-2U4-3T(-N) | Appendix: List of DIP switch settings The following table illustrates the switch settings for all possible controller MSTP address settings. See Configuring the CBV-2U4-3T(-N) for BACnet communications on page 18 for more details. 0000000 Software Selectable Note:...
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