operaTIon
IOM 1210-7 • MAGNITUDE
®
MODEL WMC CHILLERS 56 www.DaikinApplied.com
No Starter Transition Comp 1
COMPR STOP - Compressor Comm Loss
(previously used for compressor communication error)
Auto-clears
No Starter Transition Comp 2
COMPR STOP - Compressor Comm Loss
(previously used for compressor communication error)
Auto-clears
General Compressor Fault 1 COMPR STOP - Compressor Fault Reset is dependent on specic alarm
General Compressor Fault 2 COMPR STOP - Compressor Fault Reset is dependent on specic alarm
Communication Fault 1 COMPR STOP - Compressor Comm Loss Auto-clears
Communication Fault 2 COMPR STOP - Compressor Comm Loss Auto-clears
Interlock Fault NO START - Interlock Fault Auto-clears
Interlock Fault 2 NO START - Interlock Fault Auto-clears
Problem Alarms
Problems do not cause compressor shutdown but do limit operation of the chiller.
Table 20: Unit Problem Alarms
Description HMI Alarm Message Alarm Reset
Condenser Water Freeze Protect Comp 1 COND PUMP ON - Discharge pressure Low (Freeze) Auto-clears
Condenser Water Freeze Protect Comp 2 COND PUMP ON - Discharge pressure Low (Freeze) Auto-clears
Low Suction pressure - Inhibit Loading Comp 1 NO LOAD - Suction pressure Low Auto-clears
Low Suction pressure - Inhibit Loading Comp 2 NO LOAD - Suction pressure Low Auto-clears
Low Suction pressure - Unload Comp 1 UNLOAD - Suction pressure Low Auto-clears
Low Suction pressure - Unload Comp 2 UNLOAD - Suction pressure Low Auto-clears
Ground Fault Protection 1 COMPR STOP - Ground Fault Locked off (requires local reset)
Ground Fault Protection 2 COMPR STOP - Ground Fault Locked off (requires local reset)
Warning Alarms
Warnings only generate a warning message to the operator. Chiller operation is not affected.
Table 21: Unit Warning Alarms
Description HMI Alarm Message Alarm Reset
Entering Condenser Water Temperature Sensor Fault NO ACTION - Condenser EWT Out of Range Auto-clears
Entering Evaporator Water Temperature Sensor Fault NO ACTION - Evaporator EWT Out of Range Auto-clears
Liquid Line Refrigerant Temperature Sensor Fault NO ACTION - Liquid Line Temp Out of Range Auto-clears
Leaving Condenser Water Temperature Sensor Fault NO ACTION - Condenser LWT Out of Range Auto-clears
Condenser Pump #1 Fault No Alert shown on HMI panel No Alarm
Condenser Pump #2 Fault No Alert shown on HMI panel No Alarm
High Discharge Temperature Comp 1 No Alert shown on HMI panel No Alarm
High Discharge Temperature Comp 2 No Alert shown on HMI panel No Alarm
Entering Evap Temperature Sensor Fault (EWT reset active) No Alert shown on HMI panel No Alarm
Chiller Running with Limited Capacity No Alert shown on HMI panel No Alarm
Load Balance Valve Fault 1 COMPR WARNING - Flooded Compressor Operator Cleared Only
Load Balance Valve Fault 2 COMPR WARNING - Flooded Compressor Operator Cleared Only
Table 22: Compressor Warning Alarms
Description HMI Alarm Message Alarm Reset
Repower After Power Loss 1 COMPR STOP - Line Voltage Low Auto-clears
Repower After Power Loss 2 COMPR STOP - Line Voltage Low Auto-clears
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