Page 80 - IOM / ROOF-TOP FLEXY™ Series
Customer error
A fault has been detected, external to the unit.
Water leak
If the contact of the water leak detection card is closed for more than 30 seconds, the safety
system is activated.
WATER HEAT EXCHANGER OUTLET TEMPERATURE SAFETY SYSTEM.
Condenser Water Temperature Too Low
If the temperature of the water loop is less than or equal to the preset setpoint [C89] during the
operation of one of the compressors, the condenser safety mechanism is applied. The
compressors are stopped.
This safety mechanism automatically cuts out if the loop temperature exceeds 4°C from this
setpoint.
It is also automatically locked out after 3 failures within a day. In this case, manual resetting is
obligatory. The counter is reset to zero every evening at 20:00 if its value does not exceed 3
failures.
Condenser Water Temperature Too High
The temperature of the water loop is greater than or equal to the preset setpoint [C90] during
the operation of one of the compressors, the condenser safety mechanism is applied. The
compressors are stopped.
This safety mechanism automatically cuts out if the loop temperature is less than 4°C from this
setpoint.
It is also automatically locked out after 3 failures within a day. In this case, manual resetting is
obligatory. The counter is reset to zero every evening at 20:00 if its value does not exceed 3
failures.
Faulty Water Flow
If the contact of the water flow controller is open for more than 20 seconds, the condenser
safety mechanism is applied. The compressors are stopped.
This safety mechanism automatically cuts out if the loop temperature is less than 4°C from this
setpoint.
It is also automatically locked out after 3 failures within a day. In this case, manual resetting is
obligatory. The meter is reset to zero every evening at 20:00 if its value does not exceed 3
failures.
Error : Smoke
If the contact closes due to the smoke detector card, the smoke safety mechanism is activated.
The unit is completely shut down and the fresh air louver is set to the fresh air position.
This safety mechanism is automaticallylocked out. In this case, manual resetting is obligatory.
SAFETY AND ERROR CODES
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