24
Reglermanual - VMGFF102
6.4 - Alarm codes (cont.)
Alarm No.
Alarm
code
Alarm description
Reset type
Probable cause
Action taken by the control
Process faults (cont.)
33
P-29
Communication loss with the System
Manager
Automatic when communication is
re-established
CCN installation bus defective
Unit goes into autonomous mode
34
P-30
Communicaiton loss between
master and slave
Automatic when communication is
re-established
CCN installation bus defective
As above
35
MC-nn
Master chiller 1 confi guration error
Automatic when the master
confi guration returns to normal or
when the unit is no longer in master/
slave mode
Master/slave confi guration error
Master/slave mode is stopped
36
FC-n0
No factory confi guration
Automatic when the confi guration is
entered
The unit size has not been
confi gured
Unit is shut down
37
FC-01
Illegal factory confi guration number
Manual
The unit size has been confi gured
with the wrong value
As above
38
P-31
CCN emergency stop
Manual
Network command
As above
39
P-32
Fault water pump 1
Manual
Pump overheating or poor pump
connection
Unit is completely stopped if there
is no emergency pump
40
P-33
Fault water pump 2
Manual
As above
As above
41
P-37
Repeated high pressure unloading,
circuit A
Automatic
Transducer defective or fan circuit
fault
None
42
P-38
Repeated high pressure unloading,
circuit B
Automatic
As above
As above
43
P-40
Repeated low suction temperature
unloading in heating mode, circuit A
Manual
Pressure sensor defective or
refrigerant charge too low
Circuit is shut down
44
P-41
Repeated low suction temperature
unloading in heating mode, circuit B
Manual
As above
As above
45
P-43
Heat exchanger temperature too
low, less than 10°C, prevents unit
start-up
Automatic when the temperature
detected returns to normal or when
the mode returns to cooling
Operating compressor protection
out of range or pressure sensor fault
The unit cannot start
46
P-97
Reversed entering/leaving water
sensors
Manual
Sensor defective, sensors reversed
Unit is shut down
48
V0-xx
Fault, variable fan speed controller,
circuit A
Manual or automatic
Speed controller fault or alert
Alert: The circuit continues to
operate, the speed controller slows
down the motor.
Alarm: The circuit shuts down.
49
V1-xx
Fault, variable fan speed controller,
circuit B
As above
As above
As above
50
V3-xx
Fault, variable water pump controller
51
Sr-00
Maintenance service alert
Manual
The preventive maintenance date
has passed
53
P62-2
Water loop control fault, missing
sensor calibration
Automatic if the calibration is valid
No calibration
P62-3
Water loop control fault, suction
pressure too low
Automatic the fi rst time, if the water
system is supplied with water, the
second time manual if it is the same
day
Too little water in the system
Unit is shut down
P62-4
Water loop control fault, water pump
has not started
P62-5
Reserved
P62-6
Water loop control fault, water pump
overload
Automatic
Missing pressure head at the water
pump
Unit is shut down
P62-7
Water loop control fault, water fl ow
rate fault
Manual
Serious water leak, casse pompe
Unit is shut down
P62-8
Water loop control fault, water
pressure sensors mixed up
Automatic
Sensors mixed up
Unit is shut down
54
P-63
High pressure fault in circuit A
Manual
Fan fault
Circuit is shut down
55
P-64
High pressure fault in circuit B
As above
As above
As above
56
P-99
Refrigerant leak detected
Automatic
Refrigerant leak or solvent present in
the machine atmosphere
No action
Summary of Contents for AR05
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