Alarm
Description
Compressor Driver Protect 00 to
Compressor Driver Protect 15
The compressor driver detects abnormal operation. In this case, the compressor stops working
Fan 1 Failure, Fan 2 Failure, Fan 3 Failure,
Fan 4 Failure, Fan 6 Failure, Fan 8 Failure
The fan cannot work normally
Supply Temp Sensor 1 Failure, Supply
Temp Sensor 2 Failure, Supply Temp
Sensor 3 Failure
The temperature of the supply air is out of the detection range of the supply temperature sensor
Remote Temp Sensor 1 Failure to
Remote Temp Sensor 10 Failure
The ambient temperature is out of the detection range of the remote temperature sensor
Discharge Temp Sensor Failure
The temperature of the discharge gas is out of the detection range of the discharge temperature sensor
Suction Temp Sensor Failure
The temperature of the suction gas is out of the detection range of the suction temperature sensor
Low Pressure Sensor Failure
The pressure of suction gas is out of the detection range of the low pressure sensor
High Pressure Sensor Failure
The pressure of discharge gas is out of the detection range of the high pressure sensor
Return Humidity Sensor 1 Failure
The humidity of the return air is out of the detection range of the return humidity sensor
Smoke Sensor Alarm
Smoke is detected
Fire Sensor Alarm
Fire is detected
Custom 1
This alarm can be set as Smoke Sensor Alarm, Fire Sensor Alarm, or Remote Shutdown. Or it can be
customized
Outdoor Fan 1 Communication Failure,
Outdoor Fan 2 Communication Failure
The outdoor fan cannot communicate with the iCOM Edge board
Outdoor Fan 1 Driver Failure, Outdoor
Fan 2 Driver Failure
The driver of the outdoor fan cannot work normally
ESP Sensor 1 Failure, ESP Sensor 2
Failure
The external static pressure (ESP) of the supply air or return air is out of the detection range of the ESP sensor
Energy Meter Communication Failure
The energy meter cannot communicate with the iCOM Edge board
High Remote Temp
The ambient temperature detected by the remote temperature sensor is higher than the set value
Low Remote Temp
The ambient temperature detected by the remote temperature sensor is lower than the set value
Humidifier Failure
The humidifier cannot work normally
Return Temp Sensor 1 Failure, Return
Temp Sensor 2 Failure, Return Temp
Sensor 3 Failure
The temperature of the return air is out of the detection range of the return temperature sensor
Compressor Driver Lock
One of the Compressor Driver Protect 00 to Compressor Driver Protect 15 alarms is generated three times
within two hours or the alarm is active for ten minutes. Or three Compressor Driver Protect alarms are
generated in two hours
EEV Driver Abnormal
The compressor is operating but it is not in the EEV balance stage, EEV is operating normally, and the EEV
opening is less than the degree allowed by the unit
11 Appendices
79
Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual
