/ Product catalogue / Commercial and industrial ventilation / Inline fans / For round ducts / VK / VK 250 U
| Unit of measurement | VK 250 U | ||
| Connected air duct size | mm | 250 | |
| Phases | - | 1 | |
| Minimum supply voltage | V | 230 | |
| Maximum supply voltage | V | 230 | |
| Power supply frequency | Hz | 50 | 60 |
| Rated power | W | 171 | |
| Unit current | A | 0.75 | |
| Maximum airflow | m3/h | 1100 | |
| Sound pressure level LpA at 3 m | dB(A) | 49 | |
| Weight | kg | 4.3 | |
| Transported air temperature (max) | °С | 50 | |
| Transported air temperature (min) | °С | -25 | |
| Ingress protection rating | - | IPX4 | |
| Trademark | Vents | |||||
| Model | VK 250 U | |||||
| Specific energy consumption (SEC) (kWh/(m2/a)) | Cold | Average | Warm | |||
| -53.7 | A+ | -26.7 | B | -11.2 | E | |
| Type of ventilation unit | Unidirectional | |||||
| Type of drive installed | Variable speed | |||||
| Type of heat recovery system | None | |||||
| Maximum flow rate (m3/h) | 950 | |||||
| Electric power input (W) | 173 | |||||
| Reference flow rate (m3/s) | 0.185 | |||||
| Reference pressure difference (Pa) | 50 | |||||
| Specific power input (SPI) (W/(m3/h)) | 0.123 | |||||
| Control typology | Local demand control | |||||
| Maximum external leakage rates (%) | 2.7 | |||||
| Declared typology | RVU UVU | |||||
| Sound power level (dB(A)) | 70 | |||||
| The annual electricity consumption (AEC) (kWh/a) | Cold | Average | Warm | |||
| 65 | 65 | 65 | ||||
| The annual heating saved (AHS) (kWh/a) | Cold | Average | Warm | |||
| 5536 | 2830 | 1280 | ||||
| ØD | ØD1 | B | L | L1 | L2 | L3 |
|---|---|---|---|---|---|---|
| 250 | 340 | 354 | 265 | 30 | 30 | 40 |
