Carrier 30XA - Page 36

36
Alarm No. Alarm code Alarm description Reset type
Action taken Possible cause
122 10043 Low entering water temperature in heating Automatic, if EWT returns to
normal or Heating mode is
disabled
None Entering water temperature
is below 3.3°C
95 10067 Low oil pressure, circuit A Manual Circuit A shuts down Pressure sensor fault,
defective wiring or oil lter
installation fault
96 10068 Low oil pressure, circuit B Manual Circuit B shuts down As above
97 10069 Low oil pressure, circuit C Manual Circuit C shuts down As above
98 10070 Maximum oil lter dierential pressure,
circuit A
Manual The aected compressor is stopped,
other compressors continue to run
As above
99 10071 Maximum oil lter dierential pressure,
circuit B
Manual As above As above
100 10072 Maximum oil lter dierential pressure,
circuit C
Manual As above As above
123 10073 Condenser 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
124 10074 Condenser pump 2 fault (not available!) Manual As above As above
104 10075 Low oil level, circuit A Automatic (three alarms in
the last 24 hours) or Manual
Circuit A shuts down Oil level too low or oil level
detector defective
105 10076 Low oil level, circuit B As above Circuit B shuts down As above
106 10077 Low oil level, circuit C As above Circuit C shuts down As above
125 10078 High discharge gas temperature, circuit A Manual Circuit A shuts down Defective transducer, max.
condensing temperature
setpoint too low or
refrigerant charge too high
126 10079 High discharge gas temperature, circuit B Manual Circuit B shuts down As above
127 10080 High discharge gas temperature, circuit C Manual Circuit C shuts down As above
128 10081 Suction valve closed, circuit A Manual Circuit A shuts down Economizer pressure
transducer defective,
suction valve fault
129 10082 Suction valve closed, circuit B Manual Circuit B shuts down As above
130 10083 Suction valve closed, circuit C Manual
Circuit C shuts down As above
101 10084 High oil lter drop pressure, circuit A Manual None Pressure sensor fault, wiring
defective, oil lter installation
fault
102 10085 High oil lter drop pressure, circuit B Manual None As above
103 10086 High oil lter drop pressure, circuit C Manual None As above
131 10087 Slide valve control unveriable, circuit A Manual None Defective or incorrectly
wired solenoid valves,
defective current
transformer
132 10088 Slide valve control unveriable, circuit B Manual None As above
133 10089 Slide valve control unveriable, circuit C Manual None As above
134 10090 Flow controller conguration fault Manual Unit is not allowed to restart Defective ow controller or
wiring error
135 10091 Flow controller fault – evaporator ow switch
failure
Automatic (the rst
alarm in the last 24
hours) or Manual
Compressors and the evaporator
pump are stopped
As above
137 10094 Free cooling operation failure, circuit A Automatic (three alarms in
the last 24 hours) or Manual
Circuit A shuts down, Free cooling
can be started 30 minutes later
Refrigerant pump fault
138 10095 Free cooling operation failure, circuit B As above Circuit B shuts down, Free cooling
can be started 30 minutes later
As above
139 10097 Water exchanger temperature sensors
swapped
Manual Unit shuts down Leaving water temperature
is higher than entering water
temperature
136 10100 Electrical box fan failure
(units with HFO only)
Manual Unit shuts down Electrical box fan
malfunction or fan current
probe malfunction
MAINTENANCE ALARMS
140 13-nnn Service maintenance alert Manual None Preventive maintenance
date has passed
VLT DRIVE FAILURE
141 20-nnn Variable speed controller error, circuit A
(units w/o option 17)
Manual Circuit A shuts down Speed controller fault (see
section 8.6.2)
142 23-nnn Variable speed controller error, circuit B
(units w/o option 17)
Manual Circuit B shuts down As above
143 26-nnn Variable speed controller error, circuit C
(units w/o option 17)
Manual Circuit C shuts down As above
144 20-nnn VLT Fan Drive A1 Failure (option 17) Manual Circuit A shuts down As above
145 21-nnn VLT Fan Drive A2 Failure (option 17) Manual Circuit A shuts down As above
146 22-nnn VLT Fan Drive A3 Failure (option 17) Manual Circuit A shuts down As above
147 23-nnn VLT Fan Drive B1 Failure (option 17) Manual Circuit B shuts down As above
148 24-nnn VLT Fan Drive B2 Failure (option 17) Manual Circuit B shuts down As above
149 25-nnn VLT Fan Drive B3 Failure (option 17) Manual Circuit B shuts down As above
153 34-nnn Variable speed controller alert, circuit A
(units w/o option 17)
Manual None Speed controller alert
(see section 8.6.2)
154 35-nnn Variable speed controller alert, circuit B
(units w/o option 17)
Manual None As above
155 36-nnn Variable speed controller alert, circuit C
(units w/o option 17)
Manual None As above
156 38-nnn Variable speed controller A1 alert (option 17) Automatic None As above