Table Of Contents - Carrier RTU Open v5 Integration Manual

Contents
Introduction .................................................................................................................................................................. 1
What is the RTU Open controller? ...................................................................................................................... 1
Safety considerations & handling warning ....................................................................................................... 3
Communications wiring .............................................................................................................................................. 4
Protocol overview .................................................................................................................................................. 4
BACnet MS/TP ...................................................................................................................................................... 5
To set up the RTU Open for BACnet MS/TP ......................................................................................... 5
Adjusting BACnet MS/TP properties using an Equipment Touch ....................................................... 6
Troubleshooting BACnet MS/TP communication ................................................................................ 8
BACnet ARC156 .................................................................................................................................................... 9
To set up the RTU Open for BACnet ARC156 ...................................................................................... 9
Troubleshooting ARC156 communication ......................................................................................... 10
Modbus ................................................................................................................................................................ 11
To set up the RTU Open for Modbus .................................................................................................. 11
Troubleshooting Modbus communication ......................................................................................... 12
Johnson N2 ......................................................................................................................................................... 14
To set up the RTU Open for N2 ........................................................................................................... 14
Troubleshooting N2 communication .................................................................................................. 15
LonWorks ............................................................................................................................................................ 16
To set up the RTU Open for the LonWorks Option Card (Part #LON-OC) ......................................... 17
Commissioning the controller for LonWorks communication ........................................................... 18
Troubleshooting LonWorks communication ...................................................................................... 18
Start-up ....................................................................................................................................................................... 19
Sequence of Operation ............................................................................................................................................. 20
Occupancy ........................................................................................................................................................... 20
Supply fan ........................................................................................................................................................... 21
Cooling ................................................................................................................................................................. 22
Economizer ......................................................................................................................................................... 23
Power Exhaust .................................................................................................................................................... 24
Pre-Occupancy Purge ........................................................................................................................................ 24
Unoccupied Free Cooling .................................................................................................................................. 25
Optimal Start ...................................................................................................................................................... 25
Enthalpy control ................................................................................................................................................. 27
Indoor Air CO2 .................................................................................................................................................... 27
Heating ................................................................................................................................................................ 28
Supply Air Tempering ........................................................................................................................................ 28
Heat Pump operation ........................................................................................................................................ 29
Dehumidification ............................................................................................................................................... 30
Demand Limiting ............................................................................................................................................... 30
Door switch ......................................................................................................................................................... 30
Remote Occupancy ........................................................................................................................................... 31
Fire Shutdown .................................................................................................................................................... 31
Compressor Safety ............................................................................................................................................ 31
Fan Status ........................................................................................................................................................... 31
Filter status ......................................................................................................................................................... 32
Alarms ................................................................................................................................................................. 32
Linkage ................................................................................................................................................................ 34
Linkage air source mode determination ........................................................................................................ 36
Troubleshooting ......................................................................................................................................................... 38
LED's .................................................................................................................................................................... 38
Compliance ................................................................................................................................................................ 40