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 WA605 | Difference |
|---|---|---|---|
| Unit width | 42" | 42.075" | +0.075" |
| Unit height | 84.875" | 84.875" | 0" |
| Unit depth | 22.5" | 22.432" | -0.068" |
| Unit weight | 500 lbs | 500 lbs | 0 lbs |
| Supply Air | 29.875" x 9.875" | 29.88" x 9.88" | +0.005" x +0.005" |
| Distance from the top to Supply | 2.125" | 2.175" | +0.05" |
| Distance between Supply and Return | 30" | 30" | 0" |
| Mismatch | Bard WA421 | Bard WA605 | Difference |
|---|---|---|---|
| Return Air | 29.875" x 15.875" | 29.88" x 18.88" | +0.005" x +3.005" |
| Distance from Return to bottom | 27" | 23.94" | -3.06" |