Frost Protection - DeDietrich AWHP 4 MR User Manual

Fig.34 Cooling function
5.4

Frost Protection

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2. Select the AP015 cooling parameter by pressing the
and confirm by pressing the
3. Select cooling function shut-down by pressing the
firm by pressing the
4. Go back to the main display by pressing the
MW-6000365-1
If the temperature of the heating water in the heat pump falls too much,
the integrated protection device switches itself on. This device functions as
follows:
If the water temperature is lower than 5°C, the circulating pump starts
up.
If the water temperature is lower than 3°C, the back-up starts up.
If the water temperature is higher than 10°C, the back-up shuts down
and the circulating pump continues to run for a short time.
The radiator valves in rooms where there is a risk of frost must be fully
open.
key.
key.
key.

5 Operation
or key
key and con­
MIV-4 33