Chapter 5 iCOM Controller 73
Liebert.PEX2 Series Air Conditioner User Manual
Event Definition
COMP 4 SHORT CYCLE Compressor 4 short cycle
HIGH DEWPOINT High dewpoint
PUMP SHORT CYCLE Pump short cycle
Top Fan Failure Top fan failure
CONTROL VALVE FAILURE Control valve failure
PUMP 1 HRS EXCEEDED Pump 1 has exceeded operating time limit
PUMP 2 HRS EXCEEDED Pump 2 has exceeded operating time limit
COMP 3 HRS EXCEEDED Compressor 3 has exceeded operating time limit
COMP 4 HRS EXCEEDED Compressor 4 has exceeded operating time limit
TANDEM 1 PUMPDOWN FAIL Tandem 1 pumpdown fail
TANDEM 2 PUMPDOWN FAIL Tandem 2 pumpdown fail
TANDEM 1 LOW PRESSURE Tandem 1 low pressure
TANDEM 2 LOW PRESSURE Tandem 2 low pressure
HIGH FLUID TEMPERATURE High fluid temperature
LOW FLUID TEMPERATURE Low fluid temperature
FLUID SENSOR FAILURE Fluid sensor failure
FAN FAILURE Fan failure
FEEDBACK SIGNAL 1 FAILURE Feedback signal 1 failure
SUPPLY CW SENSOR FAILURE Supply chilled water sensor failure
RETURN CW SENSOR FAILURE Return chilled water sensor failure
SUPPLY REF SENSOR FAILURE Supply refrigerant sensor failure
RETURN REF SENSOR FAILURE Return refrigerant sensor failure
VALVE HRS EXCEEDED Valve has exceeded operating time limit
COMP 1A HIGH PRESSURE Compressor 1A high pressure
COMP 1B HIGH PRESSURE Compressor 1B high pressure
COMP 2A HIGH PRESSURE Compressor 2A high pressure
COMP 2B HIGH PRESSURE Compressor 2B high pressure
COMP 1A HRS EXCEEDED Compressor 1A has exceeded operating time limit
COMP 1B HRS EXCEEDED Compressor 1B has exceeded operating time limit
COMP 2A HRS EXCEEDED Compressor 2A has exceeded operating time limit
COMP 2B HRS EXCEEDED Compressor 2B has exceeded operating time limit
COMP 1A SHORT CYCLE Compressor 1A short cycle
COMP 1B SHORT CYCLE Compressor 1B short cycle
COMP 2A SHORT CYCLE Compressor 2A short cycle
COMP 2B SHORT CYCLE Compressor 2B short cycle
HIGH SUPPLY TEMPERATURE High supply temperature
LOW SUPPLY TEMPERATURE Low supply temperature
HIGH RETURN HUMIDITY High return humidity
LOW RETURN HUMIDITY Low return humidity
NOISE RED MODE STARTED Noise reduced mode started
NOISE RED MODE STOPPED Noise reduced mode stopped
RACK SENSOR 1~10 FAILURE Rack sensor 1 ~ 10 failure
HIGH RETURN TEMPERATURE High return temperature
ROOM HUMIDITY PROBLEM Room humidity problem
iCOM-DO #0 ~ #2 DISCONNECTED iCOM-do #0 ~ #2 disconnected
FEEDBACK SIGNAL 2 FAILURE Feedback signal 2 failure
BOTTOM FAN FAILURE Bottom fan failure
EC FAN FAULT EC fan fault
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