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 WL602N | Bard 18WH6 | Difference |
|---|---|---|---|
| Supply Air | 27.88" x 7.88" | 19.875" x 7.875" | -8.005" x -0.005" |
| Mismatch | Bard WL602N | Bard 18WH6 | Difference |
|---|---|---|---|
| Unit width | 42" | 32.375" | -9.625" |
| Unit height | 84.875" | 69.375" | -15.5" |
| Unit depth | 22.25" | 14.625" | -7.625" |
| Unit weight | 500 lbs | 305 lbs | -195 lbs |
| Return Air | 27.88" x 13.88" | 19.875" x 11.875" | -8.005" x -2.005" |
| Distance from the top to Supply | 2.115" | 1.625" | -0.49" |
| Distance between Supply and Return | 18" | 20.5" | +2.5" |
| Distance from Return to bottom | 43" | 27.5" | -15.5" |