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5. Ensure that the directional arrow of the filter label is pointing to the center of the unit, and insert the new filter into the filter
compartment. Do not use excessive force when inserting the filter.
6. Insert the filter covers so that the filter compartment is sealed.
7. Proceed in the same way for the upper unit filter.
8. Place the upper canopy onto the unit from above. Make sure that it engages into the guide for the lower canopy and the
locking pins into the designated spring clips of the wall bracket.
9. Switch the unit back into the desired operating mode.
3.4.2
Resetting the filter runtime
After completing the filter change, the counter for the filter runtime must be reset. To do this, you can clear the filter inspection
indication again by holding the (-) and (+) button for 3 seconds. The red LED on the control panel, symbolizing the filter change, will
no longer be lit.
3.4.3
What should I do in case of a malfunction?
Contact the installation technician in the case of a malfunction. Note the type of your ComfoAir 70; for more on this, see the type
label underneath the canopy of the unit.
The main power must always be connected, providing the ComfoAir 70 does not have to be shut down due to a serious
malfunction, maintenance work, or due to another urgent cause.
As soon as a main power is disconnected, the living space will no longer be mechanically ventilated. This makes it
possible for problems involving moisture and mold to occur in the living space. Long periods of the unit not
operating, particularly during the summer months, can lead to the accumulation of contaminants inside of the
exterior wall hood and in the EPP housing section of the pipe extension!
It is recommended that the ventilation unit be operated at all times, except during construction and when
maintenance and repair work is required. The unit should be operated in the Absent operating mode for the
duration of an absence!
3.5 Disposal
Discuss what you should do with your ComfoAir 70 at the end of its life cycle, with your supplier. If you cannot return your ComfoAir
70, do not dispose of it in the normal household waste, but rather contact your local authority for options to recycle components or
to process materials in an environmentally-friendly way.
