Carrier RTU OPEN 11-808-427-01 User Manual
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Table of Contents
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RTU Open
Wiring a status switch ......................................................................................................................... 32
Wiring specifications ................................................................................................................ 32
To wire a status switch to the controller ................................................................................. 33
Wiring a compressor safety ................................................................................................................ 33
Wiring specifications ................................................................................................................ 33
To wire a compressor safety input to the controller ............................................................... 34
Wiring an occupancy switch or door contact ..................................................................................... 34
Wiring specifications ................................................................................................................ 34
To wire an occupancy switch or door contact ......................................................................... 35
Start-up ....................................................................................................................................................................... 36
Service Test ......................................................................................................................................................... 37
Configuring the RTU Open's properties .......................................................................................................... 38
Unit Configuration properties ............................................................................................................. 38
Setpoint properties.............................................................................................................................. 40
Service Configuration properties ........................................................................................................ 41
Sequence of Operation ............................................................................................................................................. 43
Occupancy ........................................................................................................................................................... 43
Supply fan ........................................................................................................................................................... 44
Cooling ................................................................................................................................................................. 44
Economizer ......................................................................................................................................................... 45
Power Exhaust .................................................................................................................................................... 46
Unoccupied Free Cooling .................................................................................................................................. 46
Optimal Start ...................................................................................................................................................... 46
Enthalpy control ................................................................................................................................................. 47
Indoor Air CO2 .................................................................................................................................................... 47
Heating ................................................................................................................................................................ 48
Heat Pump operation ........................................................................................................................................ 49
Dehumidification ............................................................................................................................................... 49
Demand Limiting ............................................................................................................................................... 50
Door contact ....................................................................................................................................................... 50
Remote occupancy ............................................................................................................................................ 50
Fire Shutdown .................................................................................................................................................... 50
Compressor Safety ............................................................................................................................................ 50
Fan Status ........................................................................................................................................................... 51
Filter status ......................................................................................................................................................... 51
Alarms ................................................................................................................................................................. 51
Linkage ................................................................................................................................................................ 53
Linkage Air Source Modes ................................................................................................................................ 55
Troubleshooting ......................................................................................................................................................... 56
Serial number ..................................................................................................................................................... 56
LED's .................................................................................................................................................................... 56
Replacing the RTU Open's battery .................................................................................................................. 57
Compliance ................................................................................................................................................................ 58
FCC Compliance ................................................................................................................................................. 58
CE Compliance ................................................................................................................................................... 58
BACnet Compliance........................................................................................................................................... 58
Appendix A: RTU Open Points/Properties .............................................................................................................. 59
Status................................................................................................................................................................... 59
Unit Configuration .............................................................................................................................................. 60
Setpoints ............................................................................................................................................................. 63
Alarm Configuration .......................................................................................................................................... 67
Service Configuration ........................................................................................................................................ 68
Maintenance ....................................................................................................................................................... 70
Alarms ................................................................................................................................................................. 71