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 30WH4 | Bard 45WH1 | Difference |
|---|---|---|---|
| Distance from the top to Supply | 1.375" | 1.375" | 0" |
| Mismatch | Bard 30WH4 | Bard 45WH1 | Difference |
|---|---|---|---|
| Unit width | 38.25" | 42" | +3.75" |
| Unit height | 74" | 84" | +10" |
| Unit depth | 15.25" | 22" | +6.75" |
| Unit weight | 395 lbs | 500 lbs | +105 lbs |
| Supply Air | 28" x 8" | 30" x 10" | +2" x +2" |
| Return Air | 28" x 14" | 30" x 16" | +2" x +2" |
| Distance between Supply and Return | 18" | 30" | +12" |
| Distance from Return to bottom | 32.625" | 26.625" | -6" |