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 MHP30A | Bard W18HA | Difference |
|---|---|---|---|
| Supply Air | 28" x 8" | 19.88" x 7.88" | -8.12" x -0.12" |
| Mismatch | Bard MHP30A | Bard W18HA | Difference |
|---|---|---|---|
| Unit width | 32.375" | 33.3" | +0.925" |
| Unit height | 74" | 74.563" | +0.563" |
| Unit depth | 13.625" | 17.125" | +3.5" |
| Unit weight | 330 lbs | 335 lbs | +5 lbs |
| Return Air | 28" x 14" | 19.88" x 11.88" | -8.12" x -2.12" |
| Distance from the top to Supply | 1.375" | 2.183" | +0.808" |
| Distance between Supply and Return | 18" | 20.56" | +2.56" |
| Distance from Return to bottom | 32.625" | 32.06" | -0.565" |