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 | Bard 24WA4 | Difference |
|---|---|---|---|
| Distance from the top to Supply | 1.59" | 1.375" | -0.215" |
| Mismatch | VoltAire AT04 | Bard 24WA4 | Difference |
|---|---|---|---|
| Unit width | 17.4" | 32.25" | +14.85" |
| Unit height | 29.5" | 69.375" | +39.875" |
| Unit depth | 12.9" | 13.5" | +0.6" |
| Unit weight | 74.7 lbs | 318 lbs | +243.3 lbs |
| Supply Air | 14.38" x 9.5" | 20" x 8" | +5.62" x -1.5" |
| Return Air | 14.38" x 11" | 20" x 12" | +5.62" x +1" |
| Distance between Supply and Return | 5.85" | 20.5" | +14.65" |
| Distance from Return to bottom | 1.56" | 27.5" | +25.94" |