Operation
155 Liebert
®
CRV
™
14.1 Alarms/Events
The following alarms and events are supported by the Liebert iCOM® control on the Liebert CRV.
When an alarm is triggered the alarm sounds, the LED will flash red, an event will be written to the
Event Log and the BMS will be notified. If the alarm is acknowledged, the alarm will silence and the
LED will turn solid red. When the alarm condition is resolved, the LED lights green and the BMS
alarm notification is reset.
BMS Disconnected Heaters Overheated Power Off Unit 10 Disconnected
Bottom Fan Failure High CW Temp Power On Unit 11 Disconnected
Call Service High Return Humidity Rack Sensor 1 Failure Unit 12 Disconnected
Clogged Filters High Return Temperature Rack Sensor 10 Failure Unit 13 Disconnected
Comp 1 High Pressure High Supply Temperature Rack Sensor 2 Failure Unit 14 Disconnected
Comp 1 Hrs Exceeded High Temperature Rack Sensor 3 Failure Unit 15 Disconnected
Comp 1 Low Pressure Hp Transducer 1 Fail Rack Sensor 4 Failure Unit 16 Disconnected
Comp 1 Pumpdown Fail Hum Disabled Rack Sensor 5 Failure Unit 17 Disconnected
Comp 1 Short Cycle Hum Enabled Rack Sensor 6 Failure Unit 18 Disconnected
Comp Power Reduction Hum Hrs Exceeded Rack Sensor 7 Failure Unit 19 Disconnected
Compressor(S) Lockout Humidifier Cylinder Worn Rack Sensor 8 Failure Unit 20 Disconnected
Cond Pump-High Water Humidifier High Amps Rack Sensor 9 Failure Unit 21 Disconnected
Condenser 1 Failure Humidifier Lockout RAM / Battery Fail Unit 22 Disconnected
Control Valve Failure Humidifier Low Amps Reheat Lockout Unit 23 Disconnected
Customer Input 1 Humidifier Low Water Room Humidity Problem Unit 24 Disconnected
Customer Input 2 Humidifier Problem Room Sensor Failure Unit 25 Disconnected
Customer Input 3 Loss of Airflow Smoke Detected Unit 26 Disconnected
Customer Input 4 Loss of CW Flow Standby Mode Unit 27 Disconnected
Dehum Disabled Loss of Flow Supply Sensor Failure Unit 28 Disconnected
Dehum Disabled 12hrs Loss of Power System Off Confirmed Unit 29 Disconnected
Dehum Enabled Low Memory 1 System Off Requested Unit 30 Disconnected
Dehum Hrs Exceeded Low Return Humidity Top Fan Failure Unit 31 Disconnected
Dig Scroll1 High Temp Low Supply Temperature Unit 01 Disconnected Unit 32 Disconnected
Dscroll 1 Sensor Fail LP Transducer 1 Fail Unit 02 Disconnected Unit Code Missing
El Heat1 Hrs Exceeded Lwd Sensor Fail Unit 03 Disconnected Unit Disabled
Fire Alarm Maintenance Done Unit 04 Disconnected Unit Hrs Exceeded
Fluid Sensor Failure Maintenance to be Done! Unit 05 Disconnected Unit Off
General Alarm Network Failure Unit 06 Disconnected Unit On
HCB Not Connected No Connection w/Unit1 Unit 07 Disconnected Unit Shut Down
Heat Rej TVSS No Power Unit 08 Disconnected Water Under Floor
Heat Rej VFD On-Off Key Disabled Unit 09 Disconnected
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