34
8.6 - Alarm codes
The alarm codes are displayed in the Reset Alarms menu,
while in the Current Alarm menu and alarm histories textual
information regarding the event is provided.
8.6.1 - General alarm codes
Alarm No. Alarm code
Alarm description
Reset type
Action taken
Possible cause
THERMISTOR FAILURE
1
15001
Evaporator entering water thermistor fault
Automatic, if thermistor
reading returns to normal
Unit shuts down
Defective thermistor
2
15002
Evaporator leaving water thermistor fault
As above
Unit shuts down
As above
3
15003
Defrost thermistor fault, circuit A
As above
Cooling mode: Alert is displayed
Heating mode: Circuit A shuts down
As above
4
15004
Defrost thermistor fault, circuit B
As above
Cooling mode: Alert is displayed
Heating mode: Circuit B shuts down
As above
5
15006
Condenser entering water thermistor fault
As above
Heating mode: Unit shuts down
As above
6
15007
Condenser leaving water thermistor fault
As above
As above
As above
7
15008
Reclaim condenser entering
thermistor fault, circuit A
As above
Unit returns to the air-cooled
mode
As above
8
15009
Reclaim condenser leaving
thermistor fault, circuit B
As above
As above
As above
9
15010
OAT thermistor fault
As above
Unit shuts down
As above
10
15011
Master/slave common water thermistor fault
As above
Master/slave operation is disabled
and the unit returns to the
stand-alone mode
As above
11
15012
Suction gas thermistor fault, circuit A
As above
Circuit A shuts down
As above
12
15013
Suction gas thermistor fault, circuit B
As above
Circuit B shuts down
As above
13
15014
Suction gas thermistor fault, circuit C
As above
Circuit C shuts down
As above
14
15015
Discharge gas thermistor fault, circuit A
As above
Circuit A shuts down
As above
15
15016
Discharge gas thermistor fault, circuit B
As above
Circuit B shuts down
As above
16
15017
Discharge gas thermistor fault, circuit C
As above
Circuit C shuts down
As above
17
15036
Dry Cooler Leaving thermistor failure
As above
None
As above
18
15018
Condenser subcooling liquid thermistor fault, circuit A As above
Unit returns to the air-cooled mode As above
19
15019
Condenser subcooling liquid thermistor fault, circuit B As above
As above
As above
20
15021
Space temperature thermistor fault
As above
None
As above
21
15023
Evaporator heater feedback thermistor fault
As above
None
As above
22
15024
Economizer gas thermistor fault, circuit A
As above
Economizer function disabled
As above
23
15025
Economizer gas thermistor fault, circuit B
As above
As above
As above
24
15026
Economizer gas thermistor fault, circuit C
As above
As above
As above
25
15030
Free cooling liquid thermistor fault, circuit A
As above
Free cooling disabled
As above
26
15031
Free cooling liquid thermistor fault, circuit B
As above
As above
As above
TRANSDUCER FAILURE
27
12001
Discharge transducer fault, circuit A
Automatic, if sensor
voltage reading
returns to normal
Circuit A shuts down
Defective transducer
or installation fault
28
12002
Discharge transducer fault, circuit B
As above
Circuit B shuts down
As above
29
12003
Discharge transducer fault, circuit C
As above
Circuit C shuts down
As above
30
12004
Suction transducer fault, circuit A
As above
Circuit A shuts down
As above
31
12005
Suction transducer fault, circuit B
As above
Circuit B shuts down
As above
32
12006
Suction transducer fault, circuit C
As above
Circuit C shuts down
As above
33
12007
Heat reclaim pump-down pressure transducer fault,
circuit A
As above
Reclaim session stopped and the
unit returns to the air-cooled
mode
As above
34
12008
Heat reclaim pump-down pressure transducer fault, circuit B As above
As above
As above
35
12010
Oil pressure transducer fault, circuit A
As above
Circuit A shuts down
As above
36
12011
Oil pressure transducer fault, circuit B
As above
Circuit B shuts down
As above
37
12012
Oil pressure transducer fault, circuit C
As above
Circuit C shuts down
As above
38
12013
Economizer pressure transducer fault, circuit A
As above
Circuit A shuts down
As above
39
12014
Economizer pressure transducer fault, circuit B
As above
Circuit B shuts down
As above
40
12015
Economizer pressure transducer fault, circuit C
As above
Circuit C shuts down
As above
41
12016
Free cooling pump inlet pressure transducer fault,
circuit A
As above
Free cooling stopped and the unit
returns to mechanical cooling
As above
42
12017
Free cooling pump outlet pressure transducer fault, circuit A
As above
As above
As above
43
12018
Free cooling pump inlet pressure transducer fault, circuit B As above
As above
As above
44
12019
Free cooling pump outlet pressure transducer fault, circuit B
As above
As above
As above
47
12024
Water pressure 1 transducer failure (before the evaporator) As above
Alert - the values read by the
hydronic kit function are not
reliable
As above
48
12025
Water pressure 2 transducer failure (after the evaporator) As above
As above
As above
49
12026
Water pressure 3 transducer failure (before the filter)
As above
As above
As above
50
12027
Water pressure 4 transducer failure (after the filter)
As above
As above
As above
52
12029
Low water pressure
As above
Alert – the unit continues to
operate
Water loop pressure
too low, risk of pump
cavitation
