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 | Marvair AVPA24AC | Marvair AVPA42AC | Difference |
|---|---|---|---|
| Distance from the top to Supply | 1.813" | 1.813" | 0" |
| Mismatch | Marvair AVPA24AC | Marvair AVPA42AC | Difference |
|---|---|---|---|
| Unit width | 37.75" | 42" | +4.25" |
| Unit height | 69.938" | 84.5" | +14.562" |
| Unit depth | 16.813" | 22.688" | +5.875" |
| Unit weight | 350 lbs | 565 lbs | +215 lbs |
| Supply Air | 20" x 8" | 30" x 10" | +10" x +2" |
| Return Air | 20" x 12" | 30" x 16" | +10" x +4" |
| Distance between Supply and Return | 20.5" | 30" | +9.5" |
| Distance from Return to bottom | 27.625" | 26.687" | -0.938" |