Main parts

R model in the figure. In the L model, the parts are mirrored.

No.PartNo.Part
1Extract air fan10Internal carbon dioxide and humidity sensor
2Supply air fan11Control panel
3Fine filter for supply air12Carbon dioxide sensor (optional)
4Heat recovery cell13Humidity sensor (optional)
5Bypass damper of the HR cell14VOC sensor (optional)
6Coarse filter for supply air15 Cooker hood
7Coarse filter for extract air16Damper button
8Post-heating resistor17Fan speed adjustment
9Safety switch