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 | Bard MAC30 | Bard WA251 | Difference |
|---|---|---|---|
| Supply Air | 27.88" x 7.88" | 19.875" x 7.875" | -8.005" x -0.005" |
| Mismatch | Bard MAC30 | Bard WA251 | Difference |
|---|---|---|---|
| Unit width | 32.375" | 32.875" | +0.5" |
| Unit height | 74" | 70.5" | -3.5" |
| Unit depth | 13.625" | 16.875" | +3.25" |
| Unit weight | 310 lbs | 300 lbs | -10 lbs |
| Return Air | 27.88" x 13.88" | 19.875" x 11.875" | -8.005" x -2.005" |
| Distance from the top to Supply | 1.615" | 2" | +0.385" |
| Distance between Supply and Return | 18" | 20.75" | +2.75" |
| Distance from Return to bottom | 32.625" | 28" | -4.625" |