These units don’t appear to have much in common. If you’re replacing one with the other, you’ll need to make some modifications to wall, unit or something in between with a plate or adapter curb.
| Match | VoltAire AT04 | nVent Hoffman T4306 | Difference |
|---|---|---|---|
| No matches in measurement | - | - | - |
| Mismatch | VoltAire AT04 | nVent Hoffman T4306 | Difference |
|---|---|---|---|
| Unit width | 17.4" | 15.75" | -1.65" |
| Unit height | 29.5" | 43" | +13.5" |
| Unit depth | 12.9" | 10.9" | -2" |
| Unit weight | 74.7 lbs | 125 lbs | +50.3 lbs |
| Supply Air | 14.38" x 9.5" | 13.94" x 15.51" | -0.44" x +6.01" |
| Return Air | 14.38" x 11" | 13.94" x 10.23" | -0.44" x -0.77" |
| Distance from the top to Supply | 1.59" | 0.56" | -1.03" |
| Distance between Supply and Return | 5.85" | 16.07" | +10.22" |
| Distance from Return to bottom | 1.56" | 0.63" | -0.93" |