Filter replacement T12 and T15

A general recommendation is to change the filters once a year after the pollen season. The filters must be vacuumed and replaced if necessary.

Filter replacement

To change the filter or gain access for service, follow these steps:

1. Turn off the power to the supply air unit.
2. Unscrew the four knobs that hold the door in place.
3. Remove the cover to access the filter set.
4. To change the filters, remove the old filters and fit the new filters in place.
5. Hang the cover on the four screws and screw the knob firmly.
6. Turn on the power of the device again.