Lennox ROOFTOP FLEXY FCA Series Installation Operating & Maintenance Manual page 80

SAFETY AND ERROR CODES
081
082
083
084
085
086
087
089
091
092
093
Sensor Status
Room temperature sensor missing or faulty.
Room relative humidity sensor missing or faulty
Outside air temperature sensor faulty
Outside relative humidity sensor faulty
Supply Air temperature sensor faulty
Temperature sensor on cold water loop faulty
Temperature sensor on condenser water outlet faulty.
NOTE :
Missing or faulty room, supply air or outside air temperature sensors can affect the overall
control system. A safety device will be activated and all equipment except for the ventilation will
cut out. Failure of the other sensors will only stop the equipment involved.
Faulty inter card link
The inter card link is faulty or missing.
Faulty blower fan
The fan contactor is not connected although the CLIMATIC™ requests it.
- The thermostat fire safety mechanism, or the fire insertion, is open.
- The internal protection of the blower fan motor is open.
The fire detector and the fan motor internal protection act directly on the fan motor contactor.
This information is transmitted to the CLIMATIC™ via an auxiliary contact of the contactor. If
the CLIMATIC™ gives the order to operate to the fan and if the auxiliary contact is still open 5
seconds later, the fan safety system is activated and stops the unit.
The safety system is immediately automatically locked out. In this case, manual resetting is
obligatory.
If a unit is fitted with an all-or-nothing servomotor-powered damper, the detection time extends
to 2 minutes (Flexy™ only).
Note : This error is also displayed in the event of a "shunt" of the auxiliary contact of the
contactor.
Faulty ventilation, condenser circuit 1 or 2
The fan contactor is not connected although the CLIMATIC™ requests it.
The fan motor internal protection acts directly on the fan motor contactor. This information is
transmitted to the CLIMATIC™ via an auxiliary contact of the contactor.
If the CLIMATIC™ gives the order to operate to the fan and if the auxiliary contact is still open
5 seconds later, the fan safety system is activated and stops the condenser fan and the
compressors concerned.
The safety system is immediately automatically locked out. In this case, manual resetting is
obligatory.
Faulty ventilation, condenser circuit 3 or 4
The fan contactor is not connected although the CLIMATIC™ requests it.
The fan motor internal protection acts directly on the fan motor contactor. This information is
transmitted to the CLIMATIC™ via an auxiliary contact of the contactor.
If the CLIMATIC™ gives the order to operate to the fan and if the auxiliary contact is still open
5 seconds later, the fan safety system is activated and stops the condenser fan and the
compressors concerned.
The safety system is immediately automatically setpoint. In this case, manual resetting is
obligatory.
IOM / ROOF-TOP FLEXY™ Series - Page 79