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 W72AB | Bard WH181 | Difference |
|---|---|---|---|
| Distance from the top to Supply | 2.18" | 2" | -0.18" |
| Mismatch | Bard W72AB | Bard WH181 | Difference |
|---|---|---|---|
| Unit width | 42.075" | 32.875" | -9.2" |
| Unit height | 93" | 70.5" | -22.5" |
| Unit depth | 22.432" | 16.875" | -5.557" |
| Unit weight | 525 lbs | 300 lbs | -225 lbs |
| Supply Air | 29.88" x 9.88" | 19.875" x 7.875" | -10.005" x -2.005" |
| Return Air | 29.88" x 15.88" | 19.875" x 11.875" | -10.005" x -4.005" |
| Distance between Supply and Return | 30" | 20.75" | -9.25" |
| Distance from Return to bottom | 35.06" | 28" | -7.06" |