Maintenance tip
Special filters in the fresh-air system ensure that the air is clean and pure when it enters the room. In addition to this, the system (the heat exchanger and the pipe system) is protected from contamination and noise-free operation is ensured. This is why the use and regular replacement of the filter is urgently recommended.Depending on the degree of contamination of the outside air, the filter must be cleaned no later than after six months.
If replacement is necessary, it can be determined on the basis of several signs:
- increased noise level of the fans in the device
- visual inspection of the filters or
- flashing filter symbol on the remote control