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 18WH1 | Bard MAC36 | Difference |
|---|---|---|---|
| Unit width | 32.25" | 32.375" | +0.125" |
| Unit depth | 13.5" | 13.625" | +0.125" |
| Unit weight | 315 lbs | 315 lbs | 0 lbs |
| Supply Air | 20" x 8" | 27.88" x 7.88" | +7.88" x -0.12" |
| Mismatch | Bard 18WH1 | Bard MAC36 | Difference |
|---|---|---|---|
| Unit height | 67.5" | 74" | +6.5" |
| Return Air | 20" x 12" | 27.88" x 13.88" | +7.88" x +1.88" |
| Distance from the top to Supply | 1.25" | 1.615" | +0.365" |
| Distance between Supply and Return | 20.5" | 18" | -2.5" |
| Distance from Return to bottom | 25.75" | 32.625" | +6.875" |