/ Product catalogue / Decentralized ventilation units / Decentralized HRU for residential and commercial buildings / Advanced / Hybrid Max / Hybrid Max S21
| Unit of measurement | Hybrid Max S21 | |
| Phases | - | 1 |
| Minimum supply voltage | V | 230 |
| Maximum supply voltage | V | 230 |
| Power supply frequency | Hz | 50/60 |
| Sound pressure level LpA at 1 m | dB(A) | 42 |
| Heat recovery efficiency, max | % | 95 |
| Heat exchanger type | - | Counter flow |
| Heat exchanger material | - | Polystyrene |
| Weight | kg | 47 |
| Transported air temperature (max) | °С | 40 |
| Transported air temperature (min) | °С | -25 |
| Trademark | Blauberg | |||||
| Model | Hybrid Max S21 | |||||
| Specific energy consumption (SEC) (kWh/(m²/a)) | Cold | Average | Warm | |||
| -76.3 | A+ | -40.1 | A | -16.7 | E | |
| Type of ventilation unit | Bidirectional | |||||
| Type of drive installed | Variable speed | |||||
| Type of heat recovery system | Recuperative | |||||
| Thermal efficiency of heat recovery (%) | 76 | |||||
| Maximum flow rate (m³/h) | 190 | |||||
| Electric power input (W) | 58 | |||||
| Reference flow rate (m³/s) | 0.038 | |||||
| Specific power input (SPI) (W/(m³/h)) | 0.207 | |||||
| Control typology | Local demand control | |||||
| Maximum internal leakage rates (%) | 2.7 | |||||
| Maximum external leakage rates (%) | 2.7 | |||||
| Airflow sensitivity at +20 Pa and -20 Pa (%) | 0 | |||||
| Declared typology | RVU BVU | |||||
| Sound power level (dB(A)) | 50 | |||||
| The annual electricity consumption (AEC) (kWh/a) | Cold | Average | Warm | |||
| 703 | 166 | 121 | ||||
| The annual heating saved (AHS) (kWh/a) | Cold | Average | Warm | |||
| 8517 | 4354 | 1969 | ||||
