Bard WA301
Bard W30AA
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air27.875"7.875"27.875"13.875"27.88"7.88"27.88"13.88"37.875"38.2"70.5"74.563"16.875"17.125"2"2.123"18"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 WA301 Bard W30AA Difference
Unit depth16.875"17.125"+0.25"
Supply Air27.875" x 7.875"27.88" x 7.88"+0.005" x +0.005"
Return Air27.875" x 13.875"27.88" x 13.88"+0.005" x +0.005"
Distance from the top to Supply2"2.123"+0.123"
Distance between Supply and Return18"17.93"-0.07"
Mismatch Bard WA301 Bard W30AA Difference
Unit width37.875"38.2"+0.325"
Unit height70.5"74.563"+4.063"
Unit weight355 lbs350 lbs-5 lbs
Distance from Return to bottom28.75"32.75"+4"