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 20WH | Bard W30AA | Difference |
|---|---|---|---|
| Supply Air | 20" x 8" | 27.88" x 7.88" | +7.88" x -0.12" |
| Mismatch | Bard 20WH | Bard W30AA | Difference |
|---|---|---|---|
| Unit width | 32.25" | 38.2" | +5.95" |
| Unit height | 67.5" | 74.563" | +7.063" |
| Unit depth | 13.5" | 17.125" | +3.625" |
| Unit weight | 325 lbs | 350 lbs | +25 lbs |
| Return Air | 20" x 12" | 27.88" x 13.88" | +7.88" x +1.88" |
| Distance from the top to Supply | 1.25" | 2.123" | +0.873" |
| Distance between Supply and Return | 20.5" | 17.93" | -2.57" |
| Distance from Return to bottom | 25.75" | 32.75" | +7" |