External filter

Parameters: External filter

Set value: No / Yes

Parameters: Filter service life, external filter

Set value: 3 ... 6 ... 18 months

Parameters: Filter change, external filter

Set value: No / Yes

External filter yes activates the filter change indicator for an outside air filter upstream of the ventilation unit.

If the filter is changed prematurely, the filter change must be confirmed. This is done by selecting yes under `Filter change´ `External filter´. The filter service life is reset.