JBus
code
Code Alarm description Reset type Action taken Possible cause
60 10033 COOLER PUMP #2 FAULT Manual As above As above
61 10034 CIRCUIT A RECLAIM OPERATION
FAILURE
Not applicable - -
62 10035 CIRCUIT B RECLAIM OPERATION
FAILURE
Not applicable - -
63 10037 CIRCUIT A - REPEATED HIGH DISCHARGE
GAS OVERRIDES
Automatic (no discharge
gas override within 30
min) or Manual (the
counter forced to 0)
None Repetitive capacity
decreases
64 10038 CIRCUIT B - REPEATED HIGH
DISCHARGE GAS OVERRIDES
As above None As above
65 10040 CIRCUIT A - REPEATED LOW SUCTION
TEMP OVERRIDES
Manual
(the counter forced to 0)
Circuit A shuts down Repetitive capacity
decreases
66 10041 CIRCUIT B - REPEATED LOW SUCTION
TEMP OVERRIDES
As above Circuit B shuts down As above
67 10043 LOW ENTERING WATER TEMPERATURE
IN HEATING
Automatic (EWT returns
to normal or Heating
mode is disabled)
None Low entering uid
temperature in
Heating mode
68 10051 WATER EXCHANGER FLOW SWITCH
FAILURE
Manual Unit shuts down Flow switch fault
69 10052 HEAT RECLAIM FLOW SWITCH FAILURE Not applicable - -
70 10063 CIRCUIT A HIGH PRESSURE SWITCH
FAILURE
Manual Circuit A shuts down Switch fault
71 10064 CIRCUIT B HIGH PRESSURE SWITCH
FAILURE
Manual Circuit B shuts down As above
72 10090 WATER EXCHANGER FLOW SWITCH
SETPOINT CONFIGURATION FAILURE
Manual Unit cannot be started Defective or
incorrectly wired ow
controller
73 10091 CIRCUIT A FREE COOLING VALVE
INCOHERENT POSITION
Manual Circuit A shuts down The valve has not
reached the expected
position in the
assigned time
74 10092 CIRCUIT B FREE COOLING VALVE
INCOHERENT POSITION
Manual Circuit B shuts down As above
75 10094 CIRCUIT A FREE COOLING OPERATION
FAILURE
Automatic Free cooling cycle stopped. Unit
returns to mechanical cooling
The refrigerant pump
has not started
correctly or it has
cavitated
76 10095 CIRCUIT B FREE COOLING OPERATION
FAILURE
Automatic As above As above
77 10097 WATER EXCHANGER TEMPERATURE
SENSORS SWAPPED
Manual Unit shuts down Input and output
temperature reversed
78 10099 REFRIGERANT LEAKAGE DETECTION Automatic None Refrigerant leak or
leak detector
defective
79 10101 DC FREE COOLING PROCESS FAILURE Automatic None Fan fault, dirty beam
88 10210 CIRCUIT A LOW DELTA PRESSURE
OPERATION FAILURE
Manual Circuit A shuts down Circuit running in part
load with all available
compressors and low
delta pressure during
operation. Not enough
capacity available /
failed or disabled due
to compressor(s)
89 10211 CIRCUIT B LOW DELTA PRESSURE
OPERATION FAILURE
Manual Circuit B shuts down As above
80 11202 WATER LOOP: DELTA PRESSURE ERROR Automatic, if water
pressure delta returns to
normal
Unit shuts down Too low or high water
pressure reading
81 11203 WATER LOOP: PRESSURE TOO LOW Automatic, if water
pressure reading returns
to normal and the alarm
occurred not more than 6
times in the last 24 hours
(otherwise manual)
Unit shuts down Low pump inlet
pressure is below
60 kPa
82 11204 WATER LOOP: PUMP NOT STARTED Automatic Pump is stopped Too low or high water
pressure reading
84 11206 WATER LOOP: PUMP OVERLOAD Automatic None Water loop pressure
drop too low
85 11207 WATER LOOP: FLOW TOO LOW Automatic, when water
ow reading returns to
normal
Pump is stopped Water loop pressure
drop too high
8 - DIAGNOSTICS
52
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