| Unit of measurement | VUT 350 VB EC A21 | |
| Connected air duct size | in | 6 19/64” |
| Phases | - | 1 |
| Minimum supply voltage | V | 120 |
| Maximum supply voltage | V | 120 |
| Power supply frequency | Hz | 50/60 |
| Rated power | W | 178 |
| Maximum unit current | A | 2.8 |
| Heat recovery efficiency, max | % | 92 |
| Extract filter | - | MERV8 |