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 AT12 | Bard W3RV1 | Difference |
|---|---|---|---|
| Distance from the top to Supply | 2.02" | 2.123" | +0.103" |
| Mismatch | VoltAire AT12 | Bard W3RV1 | Difference |
|---|---|---|---|
| Unit width | 16.39" | 38.2" | +21.81" |
| Unit height | 43.99" | 70.563" | +26.573" |
| Unit depth | 12.3" | 17.125" | +4.825" |
| Unit weight | 94.6 lbs | 355 lbs | +260.4 lbs |
| Supply Air | 13.5" x 11.75" | 27.88" x 7.88" | +14.38" x -3.87" |
| Return Air | 13.5" x 16.62" | 27.88" x 13.88" | +14.38" x -2.74" |
| Distance between Supply and Return | 11.6" | 17.93" | +6.33" |
| Distance from Return to bottom | 2" | 28.75" | +26.75" |