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 W18HF | Bard W42HC | Difference |
|---|---|---|---|
| Distance from the top to Supply | 2.18" | 2.18" | 0" |
| Mismatch | Bard W18HF | Bard W42HC | Difference |
|---|---|---|---|
| Unit width | 33.3" | 42" | +8.7" |
| Unit height | 74.56" | 84.88" | +10.32" |
| Unit depth | 17.13" | 25.52" | +8.39" |
| Unit weight | 329 lbs | 500 lbs | +171 lbs |
| Supply Air | 19.88" x 7.88" | 29.88" x 9.88" | +10" x +2" |
| Return Air | 19.88" x 11.88" | 29.88" x 15.88" | +10" x +4" |
| Distance between Supply and Return | 20.56" | 30" | +9.44" |
| Distance from Return to bottom | 32.06" | 26.94" | -5.12" |