Airedale SmartCool 11-233kW - Manual (Page 188)

SmartCool
TM
- D Precision Air Conditioning
188
Precision Air Conditioning
Installation, Maintenance and Commissioning Manual :6877419 02/2013
Code Description
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Cause Action
AL065 EEV Driver 3 MOP Alarm Ÿ
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 is manually reset once the
system has brought the evaporating
temperature below the MOP limit.
AL066 EEV Driver 3 LOP Alarm Ÿ
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 is manually reset once the
system has brought the evaporating
temperature below the LOP limit.
AL067
EEV Driver 3 Low Superheat
Alarm
Ÿ
Indicates the superheat
has exceeded the low
superheat limit. During the
alarm compressor 2 is
switched off.
This alarm is manually reset once the
system has brought the superheat
above the low super heat limit.
AL068
EEV Driver 3 EEV Not Closed
After Power Fail
Ÿ
Indicates that the EEV did
not close once power was
restored, during alarm
compressor 2 is switched
off.
This alarm is manually reset.
AL069
EVD1 pLAN Communications
Offline
Ÿ Ÿ
Indicates an error with the
pLAN connection which the
controller communicates
with EVD1. This alarm will
shut circuit 1 down.
This alarm is automatically reset once
the pLAN fault is rectified.
AL070
EVD2 pLAN Communications
Offline
Ÿ Ÿ
Indicates an error with the
pLAN connection which the
controller communicates
with EVD2. This alarm will
shut circuit 1 down.
This alarm is automatically reset once
the pLAN fault is rectified.
AL071
EVD3 pLAN Communications
Offline
Ÿ Ÿ
Indicates an error with the
pLAN connection which the
controller communicates
with EVD3. This alarm will
shut circuit 2 down.
This alarm is automatically reset once
the pLAN fault is rectified.
AL072
EVD4 pLAN Communications
Offline
Ÿ Ÿ
Indicates an error with the
pLAN connection which the
controller communicates
with EVD4. This alarm will
shut circuit 2 down.
This alarm is automatically reset once
the pLAN fault is rectified.
AL073 Clock Alarm Ÿ Ÿ
Indicates an error with the
real time clock on-board
the controller. During alarm
any time zones set up
would be ignored.
Once the clock returns to functioning
correctly the alarm will be
automatically reset and any time ones
setup will be restored.
AL074 Frost Protection Alarm Ÿ Ÿ
Indicates that the controller
has disabled any dx
cooling to prevent
damaging the coils from
frost.
This alarm is automatically reset once
any danger of damage is removed.
AL075 High Supply Water Temperature Ÿ Ÿ
Indicates that the supply
water temperature is above
the maximum value of
supply water temperature
permitted.
Alarm is automatically reset once the
value of supply water temperature is
lower than the maximum value. This
enables a circuit change over on dual
cool units
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