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 WL253 | Bard WA481 | Difference |
|---|---|---|---|
| Distance from the top to Supply | 2.183" | 2.125" | -0.058" |
| Mismatch | Bard WL253 | Bard WA481 | Difference |
|---|---|---|---|
| Unit width | 33.3" | 42" | +8.7" |
| Unit height | 70.563" | 84.875" | +14.312" |
| Unit depth | 17.125" | 22.5" | +5.375" |
| Unit weight | 300 lbs | 500 lbs | +200 lbs |
| Supply Air | 19.88" x 7.88" | 29.875" x 9.875" | +9.995" x +1.995" |
| Return Air | 19.88" x 11.88" | 29.875" x 15.875" | +9.995" x +3.995" |
| Distance between Supply and Return | 20.56" | 30" | +9.44" |
| Distance from Return to bottom | 28.06" | 27" | -1.06" |