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 MAC30 | Bard 18WA1 | Difference |
|---|---|---|---|
| Unit width | 32.375" | 32.25" | -0.125" |
| Unit depth | 13.625" | 13.5" | -0.125" |
| Unit weight | 310 lbs | 310 lbs | 0 lbs |
| Supply Air | 27.88" x 7.88" | 20" x 8" | -7.88" x +0.12" |
| Distance from the top to Supply | 1.615" | 1.375" | -0.24" |
| Mismatch | Bard MAC30 | Bard 18WA1 | Difference |
|---|---|---|---|
| Unit height | 74" | 67.5" | -6.5" |
| Return Air | 27.88" x 13.88" | 20" x 12" | -7.88" x -1.88" |
| Distance between Supply and Return | 18" | 20.5" | +2.5" |
| Distance from Return to bottom | 32.625" | 25.625" | -7" |