Temperature/Humidity Board: All Units; Temperature/Humidity Board; Standard Return Air Housing; Optional Remote Housing - Emerson Liebert iCOM Training And Service Manual

iCOM
Controls Training and Service Manual

Temperature/Humidity Board: All Units

This section deals with the single plug connection located on the system
temperature and humidity board. The temperature/ humidity board is supplied on
all systems with iCOM controls. The cable is plugged into Plug P67 on the unit
microprocessor board and transmits information using "CAN" – Controlled Area
Network communication. Troubleshooting is accomplished by observing an LED
located on the board. If the LED is glowing the board is good. The temperature
and humidity board is typically located in the unit return.
Humidity
Sensor
CAN Bus Connectors
P67: Return Air Temperature/Humidity Board
P67-1: CAN communication
P67-6: CAN communication

Standard Return Air Housing

Temperature/Humidity Board

144
Temperature
Sensor
Power
Supply

Optional Remote housing