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COMMUNICATION
ALARM 102, 104, 202:
CONDENSER FAN, ELECTRICAL FAILURE
Description
The thermal motor protection of the condenser fan has detected an over temperature for 5 s, while the fan motor was in demand for
at least 5 s.
• Alarm 102: thermal motor protection of the condenser fan on circuit 1,
• Alarm 104: thermal motor protection of the condenser fan on circuit 1/2,
• Alarm 202: thermal motor protection of the condenser fan on circuit 2.
Action
• Alarm 102: immediate shut down of the circuit 1. The alarm is signalling,
• Alarm 104: immediate shut down of the common fans of the circuits 1 & 2. The two circuits still running with the rest of the fans
available. The alarm is signalling,
• Alarm 202: immediate shut down of the circuit 2. The alarm is signalling.
Reset
Once the data read is coherent for 2 minutes, the alarm is automatically deleted. Up to 6 trips can occur during a day and are saved in
the alarm history. The fi ve 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 sixth trip activates the fault report and must be manually reset.
Possible cause(s)
• Wrong air fl ow operating,
• Problem with wiring connection,
• Fan motor damaged.
Remedies
• Check the air system,
• Check the connection,
• Replace the fan motor.
• 78 •
CL60-AC CHILLER-IOM-1011-E
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