Bard W31H1
Bard W36AA
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air27.88"7.88"27.88"13.88"27.88"7.88"27.88"13.88"38.2"38.2"70.563"74.563"17.125"17.125"2.123"2.123"17.93"17.93"28.75"32.75"Supply AirReturn AirSupply AirReturn Air
OPENING MATCH

Your openings match up but double check the cabinet surroundings. Over time equipment coils have gotten larger for better efficiency and cabinet dimensions have changed.

Match Bard W31H1 Bard W36AA Difference
Unit width38.2"38.2"0"
Unit depth17.125"17.125"0"
Supply Air27.88" x 7.88"27.88" x 7.88"0"
Return Air27.88" x 13.88"27.88" x 13.88"0"
Distance from the top to Supply2.123"2.123"0"
Distance between Supply and Return17.93"17.93"0"
Mismatch Bard W31H1 Bard W36AA Difference
Unit height70.563"74.563"+4"
Unit weight400 lbs380 lbs-20 lbs
Distance from Return to bottom28.75"32.75"+4"