Replacing the air filter

Change the air filters when the filter change indicator lights up, but after 1 year at the latest!

Only use original replacement filters.

EPM 1 50% filters (F7) are used for the outside air and ePM 10 50% filters (M5) for the exhaust air. The filters serve as protection for the heat exchanger and ensure good air quality. The condition of the filters should be checked regularly (2-4 times a year). The filters must be replaced if necessary, at the latest after 1 year. Heavily soiled filters can cause the following faults:

Insufficient ventilation
Significant increase in fan speed, combined with higher sound power level and power consumption
A defective filter can lead to soiling/sealing of the heat exchanger

Change the filter:

Note the safety instructions Safety instructions!
Release the quick-release clips and open the front inspection door.
Remove the air filters from the ventilation unit.
Dispose of the air filters in accordance with local regulations.
Clean the filter guides with a damp cloth and allow them to dry.
Insert new air filters in such a way that the filters can be pushed in as far as they will go without tension. Pay attention to the direction of the air.
Close the inspection doors. Fasten them with the quick-release clips.

Replacement filter

Unit type	Filter exhaust air ePM 10 50% (M5), item no.:	Filter outside air, ePM1 50% (F7), item no.:	Filter, ePMcoarse 60% (G4), item no.:	Filter, ePM1 80% (F9), item no.:
M4004H	0043.2903	0043.2904	0043.2905	0043.2906
M4007H	0043.2907	0043.2908	0043.2909	0043.2910
M4012H	0043.2911	0043.2912	0043.2913	0043.2914
M4020H	0043.2915	0043.2916	0043.2917	0043.2918
M4027H	0043.2919	0043.2920	0043.2921	0043.2922