Vertiv Liebert iCOM User Manual

13 Vertiv™ Liebert® iCOM™ Hardware Installation
Your unit includes the Liebert® iCOM™ controller. This section describes the installation of connections and cabling to fully
utilize the Liebert® iCOM™ features.
13.1 Return Air Temperature/Humidity Sensor
The return temperature/humidity sensor is located in the unit return air section and is supplied on all Liebert® systems with
Vertiv™ Liebert® iCOM™ controls. The assembly connects to plug connection P67 on the Liebert® iCOM™ internal control
board on all Vertiv™ Liebert® CRV systems.
Troubleshooting is accomplished by observing a green LED located on the sensor internal control board. If the LED is solid
green, the sensor is communicating properly with the Liebert® iCOM™ controller. If the LED is continuously flashing green, the
sensor is not communicating properly and the P3 CANbus termination should be verified that it is properly terminated. No
LED indicates the sensor does not have power present.
13.1.1 P67: Return Air Temperature—Humidity Board
P67-1: CAN communication
P67-6: CAN communication
13 Vertiv™ Liebert® iCOM™ Hardware Installation
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Vertiv™ Liebert® iCOM™Installer/User Guide

Vertiv Liebert iCOM Specifications

General

Brand	Vertiv
Model	Liebert iCOM
Category	Control Unit
Language	English