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 W36AF | Bard W18A1 | Difference |
|---|---|---|---|
| Distance from the top to Supply | 2.12" | 2.183" | +0.063" |
| Mismatch | Bard W36AF | Bard W18A1 | Difference |
|---|---|---|---|
| Unit width | 38.2" | 33.3" | -4.9" |
| Unit height | 74.56" | 70.563" | -3.997" |
| Unit depth | 17.13" | 22.125" | +4.995" |
| Unit weight | 385 lbs | 335 lbs | -50 lbs |
| Supply Air | 27.88" x 7.88" | 19.88" x 7.88" | -8" x 0" |
| Return Air | 27.88" x 13.88" | 19.88" x 11.88" | -8" x -2" |
| Distance between Supply and Return | 17.93" | 20.56" | +2.63" |
| Distance from Return to bottom | 32.75" | 28.06" | -4.69" |