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 WA421 | Bard W36LB | Difference |
|---|---|---|---|
| Distance from the top to Supply | 2.125" | 2.123" | -0.002" |
| Mismatch | Bard WA421 | Bard W36LB | Difference |
|---|---|---|---|
| Unit width | 42" | 38.2" | -3.8" |
| Unit height | 84.875" | 74.563" | -10.312" |
| Unit depth | 22.5" | 17.125" | -5.375" |
| Unit weight | 500 lbs | 380 lbs | -120 lbs |
| Supply Air | 29.875" x 9.875" | 27.88" x 7.88" | -1.995" x -1.995" |
| Return Air | 29.875" x 15.875" | 27.88" x 13.88" | -1.995" x -1.995" |
| Distance between Supply and Return | 30" | 17.93" | -12.07" |
| Distance from Return to bottom | 27" | 32.75" | +5.75" |