Bard WG5S1
Bard WA3S3
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air29.88"9.88"29.88"15.88"29.88"9.88"29.88"15.88"42"42.075"97.5"84.875"27.25"22.432"2.99"2.175"30"30"38.75"26.94"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 WG5S1 Bard WA3S3 Difference
Unit width42"42.075"+0.075"
Supply Air29.88" x 9.88"29.88" x 9.88"0"
Return Air29.88" x 15.88"29.88" x 15.88"0"
Distance between Supply and Return30"30"0"
Mismatch Bard WG5S1 Bard WA3S3 Difference
Unit height97.5"84.875"-12.625"
Unit depth27.25"22.432"-4.818"
Unit weight710 lbs516 lbs-194 lbs
Distance from the top to Supply2.99"2.175"-0.815"
Distance from Return to bottom38.75"26.94"-11.81"