Main parts

R model in the figure. In the L model, the parts are mirrored.
| No. | Part | No. | Part |
|---|---|---|---|
| 1 | Extract air fan | 10 | Internal carbon dioxide and humidity sensor |
| 2 | Supply air fan | 11 | Control panel |
| 3 | Fine filter for supply air | 12 | Carbon dioxide sensor (optional) |
| 4 | Heat recovery cell | 13 | Humidity sensor (optional) |
| 5 | Bypass damper of the HR cell | 14 | VOC sensor (optional) |
| 6 | Coarse filter for supply air | 15 | Cooker hood |
| 7 | Coarse filter for extract air | 16 | Damper button |
| 8 | Post-heating resistor | 17 | Fan speed adjustment |
| 9 | Safety switch |
