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 WA601 | Bard WA181 | Difference |
|---|---|---|---|
| Distance from the top to Supply | 2.125" | 2" | -0.125" |
| Mismatch | Bard WA601 | Bard WA181 | Difference |
|---|---|---|---|
| Unit width | 42" | 32.875" | -9.125" |
| Unit height | 84.875" | 70.5" | -14.375" |
| Unit depth | 22.5" | 16.875" | -5.625" |
| Unit weight | 500 lbs | 300 lbs | -200 lbs |
| Supply Air | 29.875" x 9.875" | 19.875" x 7.875" | -10" x -2" |
| Return Air | 29.875" x 15.875" | 19.875" x 11.875" | -10" x -4" |
| Distance between Supply and Return | 30" | 20.75" | -9.25" |
| Distance from Return to bottom | 27" | 28" | +1" |