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 W18AB | Bard 30WH | Difference |
|---|---|---|---|
| Supply Air | 19.88" x 7.88" | 28" x 8" | +8.12" x +0.12" |
| Mismatch | Bard W18AB | Bard 30WH | Difference |
|---|---|---|---|
| Unit width | 33.3" | 38.25" | +4.95" |
| Unit height | 74.563" | 74" | -0.563" |
| Unit depth | 17.125" | 15.25" | -1.875" |
| Unit weight | 325 lbs | 395 lbs | +70 lbs |
| Return Air | 19.88" x 11.88" | 28" x 14" | +8.12" x +2.12" |
| Distance from the top to Supply | 2.183" | 1" | -1.183" |
| Distance between Supply and Return | 20.56" | 18.5" | -2.06" |
| Distance from Return to bottom | 32.06" | 32.5" | +0.44" |