Alarms
Code Description
Auto Reset
Unit Disabled
Component
Disabled
Cause Action
AL25 Inverter compressor tripped
• •
Inverter compressor trip due to fault on
Power+ or system pressures during start-up
The alarm will de-activate the
compressor. Alarm will auto-reset if
possible or manual reset if not
AL26
Fixed speed compressor
contactor status alarm
• •
This alarm indicates the status of compressor.
The alarm will de-activate the
compressor.
The alarm is generated if the controller output
is active but the feed back from the contactor
has not changed.
AL27 Phase failure alarm
• • •
The power meter / phase failure relay has
detected a phase rotation / fail loss
Alarm is automatically reset once the
phase failure has cleared.
AL28 Fire/smoke alarm
• • •
Indicates that re or smoke has been detected
Alarm is generated. Alarm will auto
reset if selected to do so
AL29
Water condensate pump
status alarm
• • •
Indicates that a fault has been detected with
the water condensate pump
Alarm is generated and unit is shut
down
AL30 Water leak alarm
• • •
Indicates that excess water (or a leak) has
been detected by the unit.
Alarm is generated and unit is shut
down. Valves will shut on a CW unit if
selected
AL31
Indirect refrigerant leak
alarm
• •
Indicates a possible refrigerant leak
Alarm is generated. Compressor is
disabled if selected
AL32 Power meter ofine
• • •
Indicates the controller cannot communicate
with the power meter leading it to believe the
power meter is switched off.
The alarm is automatically reset once
communications between the controller
and the power meter have been re-
established.
AL33 EEV driver probe alarm
• •
Indicates an error with a sensor.
This alarm can be manually reset once
the sensor is proven to be working
correctly.
AL34
EEV driver low superheat
alarm
• •
Indicates the superheat has exceeded the low
superheat limit.
This alarm can be manually reset once
the system has brought the superheat
above the low super heat limit.
AL35 EEV driver LOP alarm
•
Indicates that the evaporating temperature
has exceeded the LOP limit. During alarm the
EEV modulates the valve open to increase
the operating pressure whilst maintaining
superheat.
This alarm can be manually reset once
the system has brought the evaporating
temperature below the LOP limit.
AL36 EEV driver MOP alarm
•
Indicates that the evaporating temperature
has exceeded the MOP limit. During alarm the
EEV modulates the valve closed to reduce
the operating pressure whilst maintaining
superheat.
This alarm can be manually reset once
the system has brought the evaporating
temperature below the MOP limit.
AL37
EEV driver high condensing
temperature
•
Indicates that the condensing temperature
has exceeded the HITCOND limit.
This alarm can be manually reset once
the system has brought the condensing
temperature below the HITCOND limit.
AL38 EEV driver EEPROM error
•
Indicates that there has been an error
between the data stored within the EEPROM
memory and the data stored in the controller.
During the alarm the EEV is closed and the
unit is switched off.
This alarm can be manually reset once
the problem with the EEV is resolved
AL39 EEV driver motor error
•
Indicates a motor error within the EEV diver.
During this alarm the unit is switched off.
AL40
EVD pLAN communications
ofine
• • •
Indicates an error with the pLAN connection
which the controller communicates with the
EVD. This alarm will shut down the unit.
This alarm is automatically reset once
the pLAN fault is rectied.
AL41
EEV driver suction line
temp.
• • •
Indicates a low suction line temperature.
During alarm the controller will automatically
shut down the unit.
This alarm is automatically reset once
the suction line temperature increases.
AL42 EVD driver battery alarm
•
Indicates a battery fault on the EVD driver.
This alarm can be manually reset once
the problem with the battery is rectied.
AL43 EVD driver tuning alarm
• •
Indicates that the EVD driver is in tuning
mode.
This alarm is automatically reset once
the driver has nished tuning.
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