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21
Dryer Alarm Table
Alarm Conditions
Alarm Text
Alarm Trigger
Delay
Monitored
Exit Condition
Alarm Action
DISCHARGE
HIGH TEMPERATURE
Discharge temperature >
high discharge temperature set point
1 Second
Always
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
HIGH PRESSURE
High pressure switch open
1 Second
Always
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
LOW PRESSURE
Low pressure switch open
3 Minutes
Always
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
COMPRESSOR 1
Motor protection #1 switch open
1 Second
Primary
Compressor On
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
COMPRESSOR 2
Motor protection #2 switch open
1 Second
Auxiliary
Compressor On
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
OIL PROTECTION 1
Oil protection #1 switch open
1 Second
Always
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
OIL PROTECTION 2
Oil protection #2 switch open
1 Second
Always
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
PHASE REVERSAL
Phase Detection Enabled AND isPhaseReversed()
1 Second
Standby
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
PHASE LOSS
Phase Detection Enabled and isPhaseLoss()
1 Second
Standby
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
EVAPORATOR
HIGH TEMPERATURE
Evaporator temperature > High evaporator temperature
set point
1 Second
Dryer On
> 10 minutes
Alarm reset button pressed
De-energize alarm relay #2
HEATER 1
Heater #1 switch open
1 Second
Standby
Alarm reset button pressed
De-energize alarm relay #2
HEATER 2
Heater #2 switch open
1 Second
Standby
Alarm reset button pressed
De-energize alarm relay #2
DRAIN 1
Drain #1 switch open
1 Second
Dryer On
Alarm reset button pressed
De-energize alarm relay #2
DRAIN 2
Drain #2 switch open
1 Second
Dryer On
Alarm reset button pressed
De-energize alarm relay #2
SERVICE
DRYER
Dryer service interval > 0
AND Dryer service timer > Dryer service interval
None
Always
Alarm reset button pressed
De-energize alarm relay #2
EVAPORATOR
TEMP SENSOR
Evaporator temperature sensor out of range
1 Second
Always
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
EVAPORATOR OUT.
TEMP SENSOR
Evaporator outlet temperature sensor out of range
AND evaporator outlet temperature sensor installed
1 Second
Always
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
DISCHARGE
TEMP SENSOR
Discharge temperature sensor out of range
1 Second
Always
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1
SUPERHEAT ALARM
(Evaporator outlet temperature – Evaporator inlet temperature )
> Super heat alarm set point
AND evaporator outlet temperature sensor installed
7 Minutes
Dryer On
Alarm reset button pressed
Halt compressors
De-energize alarm relay #1