Lennox CLIMATIC series User Manual page 49

COMMUNICATION
ALARM 051:
RECOVERY, MOTOR FAILURE
Description
The CLIMATIC has detected a failure on the recovery motor.
Action
The alarm is signalling. The motor is stopped.
Reset
The alarm is manually reset.
Possible cause(s)
• Problem with wiring connection.
Remedies
• Check the wiring connections.
ALARM 052:
RECOVERY, WHEEL FAILURE
Description
The outlet recovery temperature is over than the safety limit.
Action
The alarm is signalling. The wheel is stopped.
Reset
Once the recovery temperature decrease under the limit 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, and the alarm counter is reset every day
at 11 am. The third trip activates the fault report and must be manually reset.
Possible cause(s)
• Problem with wiring connection (sensor in short circuit or disconnected),
• Sensor damaged.
Remedies
• Check the wiring connections,
• Replace the sensor.
ALARM 054:
RECOVERY, FILTER DIRTY
Description
The outlet recovery temperature measured by the probe is higher than the setting (3875).
Action
The alarm is signalling.
Reset
The alarm is manually reset.
Possible cause(s)
• Problem with wiring connection.
Remedies
• Check the wiring connections.
CLIMATIC RT_UNITARY-IOM-1508-E • 47 •