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5.7 Components
5-7-1 External fans
Cooling mode
1
- Fan starts at high speed 5 seconds before the compressor starts.
2
- Fan speed adjusted based on the outdoor air temperature then the freon temperature.
3
- Fan continues running for
30 seconds after the compressor stops.
Heating mode
1
- Fan starts at high speed 5 seconds before the compressor starts.
2
- Fan speed controlled at low noise level configuration
(P5 = 2 or 3) for pool heating or domestic hot water production.
5-7-2 Reversing valve
(reversible models only: P99 = 1)
1
- Supplied in heating mode as soon as the compressor is running.
2
- The valve supply is shut off 30 minutes after the compressor is stopped.
5-7-3 Condensate drain pain heater cable
(reversible models only: P99 = 1)
Powered if: the compressor is on
and
the outdoor temperature is below 0°C
and
the coil freon temperature is less than P25
and
heating mode is on.
5-7-4 Circulator
Automatic seizure protection:
To prevent the circulator seizing while it is off, the control system turns it on for one minute once every week.
Circulator:
Operates continuously in most cases.
Turned off in the following three cases:
- When the unit is off
- In frost protection mode
when the outdoor temperature is above +10°C
- In heating mode
with the boiler if P34 is set to ‘0’
In all three cases, the circulator can be started back up to protect the exchanger from freezing temperatures. It will start up
if the outdoor temperature is less than P93 and the water supply temperature is below 30°C.
