Bard W30LY
Bard WL181
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air27.88"7.88"27.88"13.88"19.88"7.88"19.88"11.88"38.2"33.3"74.563"70.563"17.125"17.125"2.123"2.183"17.93"20.56"32.75"28.06"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 W30LY Bard WL181 Difference
Unit depth17.125"17.125"0"
Distance from the top to Supply2.123"2.183"+0.06"
Mismatch Bard W30LY Bard WL181 Difference
Unit width38.2"33.3"-4.9"
Unit height74.563"70.563"-4"
Unit weight355 lbs300 lbs-55 lbs
Supply Air27.88" x 7.88"19.88" x 7.88"-8" x 0"
Return Air27.88" x 13.88"19.88" x 11.88"-8" x -2"
Distance between Supply and Return17.93"20.56"+2.63"
Distance from Return to bottom32.75"28.06"-4.69"