Bard 42WA
Bard 36WA4
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air29.875"9.875"29.875"15.875"28"8"28"14"42"38.25"84"74"23"15.25"1.375"1.375"30"18"26.875"32.625"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 42WA Bard 36WA4 Difference
Distance from the top to Supply1.375"1.375"0"
Mismatch Bard 42WA Bard 36WA4 Difference
Unit width42"38.25"-3.75"
Unit height84"74"-10"
Unit depth23"15.25"-7.75"
Unit weight500 lbs385 lbs-115 lbs
Supply Air29.875" x 9.875"28" x 8"-1.875" x -1.875"
Return Air29.875" x 15.875"28" x 14"-1.875" x -1.875"
Distance between Supply and Return30"18"-12"
Distance from Return to bottom26.875"32.625"+5.75"