Main parts
| No. | Part | No. | Part |
|---|---|---|---|
| 2a | Heat recovery cell | 10a | Control panel |
| 3a | Extract air fan | 11a | Internal carbon dioxide and humidity sensor |
| 3c | Supply air fan | 11c | Carbon dioxide sensor (optional) |
| 4a | Fine filter for supply air | 11d | Humidity sensor (optional) |
| 4b | Coarse filter for supply air | 11e | VOC sensor (optional) |
| 4c | Coarse filter for extract air | 12a | Cooker hood |
| 5a | Bypass damper of the HR cell | 12b | Damper button |
| 6a | Post-heating resistor | 12c | Fan speed adjustment |
| 9a | Ceiling bushing for electric wires | 12d | Light switch |