WS 320 ET, WS 320 BET, WS 320 KET, WS 320 KBET
| Certified since | 08 Aprile 2015 |
| Climate zone | Freddo, temperato |
| Air flow range from… | 116 m3/h |
| Air flow range to… | 246 m3/h |
| Specific electric power | 0,23 Wh/m3 |
| Heat recovery rate | 87% |
| Humidity recovery (winter) | 74% |
| Humidity recovery (summer) | - |
| Efficiency ratio | 0,77 |
| Sound level of unit | 46,8 dB(A) |
| Company headquarters | Germany (DE) |