Lennox CLIMATIC 60 User Manual page 79

COMMUNICATION
ALARM 081, 083, 085, 089, 090, 141, 142, 143, 144, 145, 146, 148, 149, 241, 242, 243, 244, 245, 246, 248, 249:
PROBE & SENSOR, FAULTY
Description
The temperature probe or pressure sensor measured by the CLIMATIC™ 60 or other expansion boards is incorrect. The device may
be disconnected or in short circuit for 5 s.
• Alarm 081: the inlet water evaporator temperature probe value is incorrect,
• Alarm 083: the outside air temperature probe value is incorrect,
• Alarm 085: the outlet water evaporator temperature probe value is incorrect,
• Alarm 089: the inside electrical box air temperature probe value is incorrect,
• Alarm 090: the inlet freecooling water temperature probe value is incorrect,
• Alarm 141: the high pressure sensor value on circuit 1 is incorrect,
• Alarm 142: the low pressure sensor value on circuit 1 is incorrect,
• Alarm 143: the liquid temperature probe value on circuit 1 is incorrect,
• Alarm 144: the suction temperature probe value on circuit 1 is incorrect,
• Alarm 145: the discharge temperature probe value on circuit 1 – compressor 1 is incorrect,
• Alarm 146: the discharge temperature probe value on circuit 1 – compressor 2 is incorrect,
• Alarm 148: the inlet water condenser temperature probe value on circuit 1 is incorrect,
• Alarm 149: the outlet water condenser temperature probe value on circuit 1 is incorrect,
• Alarm 241: the high pressure sensor value on circuit 2 is incorrect,
• Alarm 242: the low pressure sensor value on circuit 2 is incorrect,
• Alarm 243: the liquid temperature probe value on circuit 2 is incorrect,
• Alarm 244: the suction temperature probe value on circuit 2 is incorrect,
• Alarm 245: the discharge temperature probe value on circuit 2 – compressor 1 is incorrect,
• Alarm 246: the discharge temperature probe value on circuit 2 – compressor 2 is incorrect,
• Alarm 248: the inlet water condenser temperature probe value on circuit 2 is incorrect,
• Alarm 249: the outlet water condenser temperature probe value on circuit 2 is incorrect.
Action
• Alarm 081: immediate shut down of the complete unit. The alarm is signalling,
• Alarm 083: immediate shut down of the complete unit. The alarm is signalling,
• Alarm 085: immediate shut down of the complete unit. The alarm is signalling,
• Alarm 089: doesn't stop the unit. The alarm is signalling,
• Alarm 090: doesn't stop the unit. The alarm is signalling.
• Alarm 141: immediate shut down of circuit 1. The alarm is signalling,
• Alarm 142: immediate shut down of circuit 1. The alarm is signalling,
• Alarm 143: immediate shut down of circuit 1. The alarm is signalling,
• Alarm 144: immediate shut down of circuit 1. The alarm is signalling,
• Alarm 145: immediate shut down of circuit 1. The alarm is signalling,
• Alarm 146: immediate shut down of circuit 1. The alarm is signalling,
• Alarm 148: immediate shut down of circuits 1 and 2, only if there is one condenser for both circuits,
• Alarm 149: immediate shut down of circuits 1 and 2, only if there is one condenser for both circuits,
• Alarm 241: immediate shut down of circuit 2. The alarm is signalling,
• Alarm 242: immediate shut down of circuit 2. The alarm is signalling,
• Alarm 243: immediate shut down of circuit 2. The alarm is signalling,
• Alarm 244: immediate shut down of circuit 2. The alarm is signalling,
• Alarm 245: immediate shut down of circuit 2. The alarm is signalling,
• Alarm 246: immediate shut down of circuit 2. The alarm is signalling,
• Alarm 248: immediate shut down of circuit 2. The alarm is signalling,
• Alarm 249: immediate shut down of circuit 2. The alarm is signalling,
Reset
Once the data read is coherent for 2 minutes, the alarm is automatically deleted. Up to 3 trips can occur during a day and are saved in
the alarm history. The two fi rst trips don't give the alarm alert except if a trip is still present during 1 hour, and are automatically reset
every day at 6 am. The third trip activates the fault report and must be manually reset.
Possible cause(s)
• Problem with wiring connection,
• Probe or sensor damaged.
Remedies
• Check the wiring connections,
• Replace the probe or sensor.
CL60-AC CHILLER-IOM-1011-E
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