Table Of Contents - United Technologies Carrier Unit Vent Open Integration Manual

Contents
Introduction .................................................................................................................................................................. 1
What is the Unit Vent controller? ....................................................................................................................... 1
Safety considerations........................................................................................................................................... 1
Wiring inputs and outputs ........................................................................................................................................... 2
Communications wiring .............................................................................................................................................. 3
Protocol Overview ................................................................................................................................................. 3
BACnet MS/TP ...................................................................................................................................................... 4
To set up the Unit Vent for BACnet MS/TP .......................................................................................... 4
Adjusting BACnet MS/TP properties using an Equipment Touch ....................................................... 5
Troubleshooting BACnet MS/TP communication ................................................................................ 7
BACnet ARC156 .................................................................................................................................................... 8
To set up the Unit Vent for BACnet ARC156 ........................................................................................ 8
Troubleshooting ARC156 communication ........................................................................................... 9
Johnson N2 ............................................................................................................................................................ 9
To set up the Unit Vent for N2 .............................................................................................................. 9
Troubleshooting N2 communication .................................................................................................. 10
Modbus ................................................................................................................................................................ 11
To set up the Unit Vent for Modbus RTU ............................................................................................ 11
Troubleshooting Modbus communication ......................................................................................... 12
LonWorks ............................................................................................................................................................ 13
To set up the Unit Vent for the LonWorks Option Card (#LON-OC) ................................................... 14
Commissioning the controller for LonWorks communication ........................................................... 15
Troubleshooting LonWorks communication ...................................................................................... 16
Start-up ................................................................................................................................................................ 16
Sequence of Operation ..................................................................................................................................... 17
Scheduling ........................................................................................................................................... 17
Supply fan ............................................................................................................................................ 18
Cooling ................................................................................................................................................. 19
Heating ................................................................................................................................................. 20
Mixed air damper (Modulating) .......................................................................................................... 22
Mixed air damper (2-position) ............................................................................................................ 22
Changeover mode detection .............................................................................................................. 23
Indoor Air Quality ................................................................................................................................. 23
Demand Limiting ................................................................................................................................. 24
Compliance ................................................................................................................................................................ 25
FCC Compliance ................................................................................................................................................. 25
CE Compliance ................................................................................................................................................... 25
BACnet Compliance........................................................................................................................................... 25
Appendix A: Unit Vent Network Points List ............................................................................................................. 26
Third party access to BACnet points in a controller ..................................................................................... 26
Network points list for BACnet and Modbus ................................................................................................. 28
Network points list for N2 and LonWorks ...................................................................................................... 32
Appendix B: BACnet Protocol Implementation Conformance Statement ........................................................... 35
BACnet Data Link Layer Options .............................................................................................................................. 36
Appendix C: Johnson Controls N2 Protocol Implementation Conformance Statement ..................................... 37
Appendix D: Modbus Protocol Implementation Conformance Statement .......................................................... 38
Appendix E: LonWorks Protocol Implementation Conformance Statement ....................................................... 39
Document revision history ........................................................................................................................................ 41