o
peraTIon
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 specific alarm
General Compressor Fault 2
COMPR STOP - Compressor Fault
Reset is dependent on specific 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