35
COMMUNICATION FAILURE
54
4101
Communication loss with Compressor Board A Automatic, if
communication is
re-established
Unit shuts down
Bus installation fault or
defective board
55
4201
Communication loss with Compressor Board B As above
Unit shuts down
As above
56
4301
Communication loss with Compressor Board C As above
Unit shuts down
As above
57
4901
Communication loss with SIOB Board Number 1 As above
Unit shuts down
As above
58
4902
Communication loss with SIOB Board Number 2 As above
Unit shuts down
As above
59
4903
Communication loss with SIOB Board Number 3 As above
Unit shuts down
As above
60
4904
Communication loss with SIOB Board Number 4 As above
Unit shuts down
As above
61
4905
Communication loss with SIOB Board Number 5 As above
Unit shuts down
As above
62
4906
Communication loss with SIOB Board Number 6 As above
Unit shuts down
As above
63
4501
Communication loss with Fan Board Number 1
As above
Circuit A shuts down
As above
64
4502
Communication loss with Fan Board Number 2
As above
Circuit B shuts down
As above
65
4503
Communication loss with Fan Board Number 3
As above
Circuit C shuts down
As above
66
4801
Communication loss with VLT Board Number 1,
(units w/o option 17)
As above
Circuit A shuts down
As above
67
4802
Communication loss with VLT Board Number 2,
(units w/o option 17)
As above
Circuit B shuts down
As above
68
4803
Communication loss with VLT Board Number 3,
(units w/o option 17)
As above
Circuit C shuts down
As above
69
4704
Loss of communication with Fan VLT Drive Board
A1 (option 17)
As above
Circuit A shuts down
As above
70
4705
Loss of communication with Fan VLT Drive Board
A2 (option 17)
As above
Circuit A shuts down
As above
71
4706
Loss of communication with Fan VLT Drive Board
A3 (option 17)
As above
Circuit A shuts down
As above
72
4707
Loss of communication with Fan VLT Drive Board
B1 (option 17)
As above
Circuit B shuts down
As above
73
4708
Loss of communication with Fan VLT Drive Board
B2 (option 17)
As above
Circuit B shuts down
As above
74
4709
Loss of communication with Fan VLT Drive Board
B3 (option 17)
As above
Circuit B shuts down
As above
PROCESS FAILURE
78
10001
Evaporator frost protection
Manual
Unit shuts down, but the pump
continues to run
No water flow,
defective thermistor
79
10002
Condenser frost protection, circuit A
Automatic
(if saturated discharge
temperature is more
than 4.4°C) or Manual
Circuit A shuts down, but the pump
is running
Discharge pressure
transducer defective,
refrigerant leak or low
condenser water temperature
80
10003
Condenser frost protection, circuit B
As above
Circuit B shuts down, but the pump
is running
As above
81
10004
Condenser frost protection, circuit C
As above
Circuit C shuts down, but the pump
is running
As above
82
10005
Low suction temperature, circuit A
Automatic (the first
alarm in the last 24
hours) or Manual
Circuit A shuts down
Pressure sensor defective,
EXV blocked or lack of
refrigerant
83
10006
Low suction temperature, circuit B
As above
Circuit B shuts down
As above
84
10007
Low suction temperature, circuit C
As above
Circuit C shuts down
As above
85
10008
High superheat, circuit A
Manual
Circuit A shuts down
As above
86
10009
High superheat, circuit B
Manual
Circuit B shuts down
As above
87
10010
High superheat, circuit C
Manual
Circuit C shuts down
As above
88
10011
Low superheat, circuit A
Manual
Circuit A shuts down
As above
89
10012
Low superheat, circuit B
Manual
Circuit B shuts down
As above
90
10013
Low superheat, circuit C
Manual
Circuit C shuts down
As above
91
10014
Customer safety loop failure
Automatic (the first
alarm in the last 24
hours) or Manual
Unit shuts down
Customer interlock closed
92
10028
Electrical box thermostat
Automatic
Unit shuts down
Electrical box fault: Control
box poorly ventilated or poor
electrical connection
93
10029
System manager communication fault
Automatic, if
communication is
re-established
Unit returns to the stand-alone
mode
CCN bus installation
defective
94
10030
Master/slave communication failure
Automatic
Master/slave control disabled
As above
110
10031
Emergency stop
Automatic
Unit shuts down
Network emergency stop
command
111
10032
Evaporator pump 1 fault
Manual
Unit is restarted with another pump
running. If no pumps are available,
the unit shuts down
Pump overheats or poor
pump connection
112
10033
Evaporator pump 2 fault
Manual
As above
As above
113
10015
Flow controller fault - condenser flow switch failure
Automatic (the first
alarm in the last 24
hours) or Manual
Condenser pump is stopped
Condenser flow switch open
114
10034
Reclaim operation failure, circuit A
Manual
Circuit A returns to the air-cooled
mode
Low condenser flow
115
10035
Reclaim operation failure, circuit B
Manual
Circuit B returns to the air-cooled
mode
As above
116
10037
High condensing temperature, circuit A
Automatic
Circuit A shuts down
Defective transducer
117
10038
High condensing temperature, circuit B
Automatic
Circuit B shuts down
As above
118
10039
High condensing temperature, circuit C
Automatic
Circuit C shuts down
As above