Bard MHP30A
Bard 30WH4
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air28"8"28"14"28"8"28"14"32.375"38.25"74"74"13.625"15.25"1.375"1.375"18"18"32.625"32.625"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 MHP30A Bard 30WH4 Difference
Unit height74"74"0"
Supply Air28" x 8"28" x 8"0"
Return Air28" x 14"28" x 14"0"
Distance from the top to Supply1.375"1.375"0"
Distance between Supply and Return18"18"0"
Distance from Return to bottom32.625"32.625"0"
Mismatch Bard MHP30A Bard 30WH4 Difference
Unit width32.375"38.25"+5.875"
Unit depth13.625"15.25"+1.625"
Unit weight330 lbs395 lbs+65 lbs