Bard MAC36
Bard 45WH1
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air27.88"7.88"27.88"13.88"30"10"30"16"32.375"42"74"84"13.625"22"1.615"1.375"18"30"32.625"26.625"Supply AirReturn AirSupply AirReturn Air
MISMATCH

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 MAC36 Bard 45WH1 Difference
Distance from the top to Supply1.615"1.375"-0.24"
Mismatch Bard MAC36 Bard 45WH1 Difference
Unit width32.375"42"+9.625"
Unit height74"84"+10"
Unit depth13.625"22"+8.375"
Unit weight315 lbs500 lbs+185 lbs
Supply Air27.88" x 7.88"30" x 10"+2.12" x +2.12"
Return Air27.88" x 13.88"30" x 16"+2.12" x +2.12"
Distance between Supply and Return18"30"+12"
Distance from Return to bottom32.625"26.625"-6"