EN -
51
AQUACIAT
POWER
9 - DIAGNOSTICS
JBus
code Code Alarm description
Reset type
Action taken
Possible cause
55 10041 CIRCUIT B - REPEATED LOW SUCTION
TEMP OVERRIDES
As above
Circuit B shuts down
As above
56 10043 LOW ENTERING WATER TEMPERATURE
IN HEATING
Automatic (EWT returns
to normal or Heating
mode is disabled)
None
Low entering fluid
temperature in Heating
mode
57 10051 WATER EXCHANGER FLOW SWITCH
FAILURE
Manual
Unit shuts down
Flow switch fault
58 10063 CIRCUIT A HIGH PRESSURE SWITCH
FAILURE
Manual
Circuit A shuts down
Switch fault
59 10064 CIRCUIT B HIGH PRESSURE SWITCH
FAILURE
Manual
Circuit B shuts down
As above
60 10090 WATER EXCHANGER FLOW SWITCH
SETPOINT CONFIGURATION FAILURE
Manual
Unit cannot be started
Defective or incorrectly
wired flow controller
61 10097 WATER EXCHANGER TEMPERATURE
SENSORS SWAPPED
Manual
Unit shuts down
Input and output
temperature reversed
62 10050 REFRIGERANT LEAKAGE DETECTION
Automatic
None
Refrigerant leak or
leak detector defective
63 10101 DC FREE COOLING PROCESS FAILURE Automatic
None
Fan fault, dirty beam
64 11202 WATER LOOP: DELTA PRESSURE ERROR Automatic, if water
pressure delta returns to
normal
Unit shuts down
Too low or high water
pressure reading
65 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
66 11204 WATER LOOP: PUMP NOT STARTED
Automatic
Pump is stopped
Too low or high water
pressure reading
67 11205 WATER LOOP: PRESSURE ERROR
DURING RUNTEST
Manual
Unit shuts down
Too low or high water
pressure reading
68 11206 WATER LOOP: PUMP OVERLOAD
Automatic
None
Water loop pressure
drop too low
69 11207 WATER LOOP: FLOW TOO LOW
Automatic, when water
flow reading returns to
normal
Pump is stopped
Water loop pressure
drop too high
70 11208 WATER LOOP: PRESSURE SENSORS
CROSSED
Automatic, if water
pressure reading returns
to normal and the alarm
occurred not more than 6
times in the last 24 hours
Unit shuts down
Pressure sensors
crossed
71 11209 WATER LOOP: LOW PRESSURE
WARNING
Automatic, if water
pressure reading returns
to normal
None
Evaporator water
pressure is below
100 kPa
72 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)
73 10211 CIRCUIT B LOW DELTA PRESSURE
OPERATION FAILURE
Manual
Circuit B shuts down
As above
Service and factory
74 70nn
ILLEGAL FACTORY CONFIGURATION
NUMBER #1 TO NN
List of illegal configurations:
01: Unit size unknown (FACTORY_unitsize).
02: Fan type unavailable for the configured
unit size.
03: Pump configuration failure. Pump doesn't
exist for the configured unit size.
04: This configuration is not available for the
unit – unavailable type of refrigerant selected
(FACTORY_refrig). Please note that the
correct configuration of FACTORY_refrig
parameter depends on the software version:
• FACTORY_refrig = 1 (R32) for software
version 3.0 or lower
• FACTORY_refrig = 3 (R32) for software
version 4.0 or higher
Automatic,
if configuration is
corrected
Unit cannot be started
Incorrect unit
configuration
75 8000
NO FACTORY CONFIGURATION
Automatic,
if configuration is
provided
Unit cannot be started
No factory
configuration
