CLIMATIC™50 – IOM – Rooftops/ Aircoolair CL50-ROOFTOPS-IOM-1107-E
31
Blowing temperature, outside limits
Error code: 012, 022
Description
The temperature of the blown air measured by the sensor is outside the permitted range or the hot water system frost
thermostat is activated.
Lower blower temperature limit: Blower temperature < safety thresholds
Upper blower temperature limit: Blower temperature > safety thresholds
2113 ! Ambient temperature
3373 ! 1st safety threshold, lower blower temperature limit
3374 ! 2nd safety threshold, lower blower temperature limit
3375 ! 3rd safety threshold, lower blower temperature limit
3376 ! 1st safety threshold, upper blower temperature limit
3377 ! 2nd safety threshold, upper blower temperature limit
Action
" 1st lower limit safety threshold:
One compressor stops immediately, then the others progressively.
Fresh air regulator set to minimum opening.
" 2nd lower limit safety threshold:
All compressors stop.
Fresh air regulator closes.
" 3rd lower limit safety threshold or activation of frost thermostat:
If there is a hot water unit; the complete unit stops immediately.
Otherwise; the unit stops after 15 minutes.
" 1st upper limit safety threshold:
One compressor or back-up heating stage stops immediately, then the others progressively.
" 2nd lower limit safety threshold:
All the compressors and all the back-up heating stages stop.
" Fault signalling. Memorisation is displayed.
" Display of fault.
012, 2nd upper blower temperature limit threshold.
022, 3rd lower blower temperature limit threshold or activation of frost thermostat.
Reset
Automatic resetting of fault as soon as the temperature returns to within the permitted operating range, except 3rd safety
threshold lower limit which requires a manual reset.
Possible causes Solving the problem
Insufficient airflow Check the air system
Air damper jammed open Check the air damper, mechanically and electrically
Frost safety thermostat activated Manually reset the pressure switch
Probe failure. Replace the probe.
Wiring problem with the probe Check the probe connections
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