/ Product catalogue / HRV / ERV / Single-room HRV / ERV / TwinFresh / TwinFresh Comfo RA1-50-2 / TwinFresh Comfo RA1-50-2
| Unit of measurement | TwinFresh Comfo RA1-50-2 | |||
| Connected air duct size | in | 6 1/4” | ||
| Speed | - | 1 | 2 | 3 |
| Minimum supply voltage | V | 120 | ||
| Maximum supply voltage | V | 120 | ||
| Power supply frequency | Hz | 60 | ||
| Rated power | W | 4.5 | 5 | 7 |
| Maximum unit current | A | 0.045 | 0.049 | 0.076 |
| Air flow in ventilation mode | CFM | 12 | 19 | 30 |
| Air flow in heat recovery mode | CFM | 6 | 9 | 15 |
| rotation speed at 50hz | - | |||
| rotation speed at 60hz | - | 610 | 800 | 1450 |
| Heat recovery efficiency, max | % | 88 | ||
| Sound pressure level LpA at 10 ft | Sones | 0.2 | 0.4 | 0.5 |
| Minimum wall thickness, in (mm) | - | 4 3/4” | ||
| Minimum wall thickness with MERV14 filter | in | 6 3/4” | ||
