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