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 AN04 | Bard WA381 | Difference |
|---|---|---|---|
| Distance from the top to Supply | 1.94" | 2.175" | +0.235" |
| Mismatch | VoltAire AN04 | Bard WA381 | Difference |
|---|---|---|---|
| Unit width | 14.13" | 42.075" | +27.945" |
| Unit height | 30" | 84.875" | +54.875" |
| Unit depth | 12.3" | 22.432" | +10.132" |
| Unit weight | 65.6 lbs | 500 lbs | +434.4 lbs |
| Supply Air | 11.54" x 11.8" | 29.88" x 9.88" | +18.34" x -1.92" |
| Return Air | 11.54" x 6.59" | 29.88" x 15.88" | +18.34" x +9.29" |
| Distance between Supply and Return | 7.65" | 30" | +22.35" |
| Distance from Return to bottom | 2.02" | 26.94" | +24.92" |