Daikin WMC Installation, Operation And Maintenance Manual page 46

Possible Alarms and Events
There are three types of alarms: faults, problems, and warnings. In addition to these three alarms, there are also "events." See
the following tables for examples of faults, problems, warnings, and events that can occur. Separate tables are shown based on
whether the alarm source is the unit or the compressor.
NOTE: In the "Alarm Reset" column of the following tables, itallics indicate special alarm conditions or severity. If the "Alarm
Reset" says "Auto-clears," it indicates that the alarm will auto-clear after the condition is resolved and the normal
condition returns.
Fault Alarms
Equipment protection faults cause rapid compressor shutdown. The compressor is stopped immediately (if the compressor was
running).
Table 12: Unit Fault Alarms
Description
Low Motor Current Comp 1
Low Motor Current Comp 2
No Condenser Water Flow
No Compressor Stop Comp 1
No Compressor Stop Comp 2
No Evaporator Water Flow
Low Evaporator Pressure Circuit 1
Low Evaporator Pressure Circuit 2
Leaving Evaporator Water Temperature Sensor Fault Comp 1
Surge High Suct SH-Running Comp 1
Surge High Suct SH-Running Comp 2
Expansion Alarm – FAULT (external alarm)
Check Valve Fault 1
Check Valve Fault 2
IOM 1210-1 • MAGNITUDE
COMPR STOP - Condenser Water Flow Loss
COMPR STOP - Current High with Compr OFF
COMPR STOP - Current High with Compr OFF
COMPR STOP - Evaporator Water Flow Loss
COMPR STOP - Evap LWT Sensor Out of Range
COMPR STOP - Control Fault (External Input)
MODEL WMC CHILLERS
®
OITS Alarm Message
COMPR STOP - Motor Current Low
COMPR STOP - Motor Current Low
COMPR STOP - Evaporator Pressure Low
COMPR STOP - Evaporator Pressure Low
COMPR STOP - Surge Temperature
COMPR STOP - Surge Temperature
CHILLER STOP - Check Valve Failure
CHILLER STOP - Check Valve Failure
44
o
peraTIon
Alarm Reset
Auto-clears
Auto-clears
Auto-clears
Auto-clears
Auto-clears
Auto-clears
Auto-clears
Auto-clears
Auto-clears
Auto-clears
Auto-clears
Auto-clears
Locked off (requires local reset)
Locked off (requires local reset)
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