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 WA251 | Bard W12AAA | Difference |
|---|---|---|---|
| Distance from the top to Supply | 2" | 2.25" | +0.25" |
| Mismatch | Bard WA251 | Bard W12AAA | Difference |
|---|---|---|---|
| Unit width | 32.875" | 30.13" | -2.745" |
| Unit height | 70.5" | 48" | -22.5" |
| Unit depth | 16.875" | 14.63" | -2.245" |
| Unit weight | 300 lbs | 185 lbs | -115 lbs |
| Supply Air | 19.875" x 7.875" | 17" x 5" | -2.875" x -2.875" |
| Return Air | 19.875" x 11.875" | 17" x 10" | -2.875" x -1.875" |
| Distance between Supply and Return | 20.75" | 5" | -15.75" |
| Distance from Return to bottom | 28" | 25.75" | -2.25" |