Bard W6RV1
Bard WG4S2
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air29.88"9.88"29.88"15.88"29.88"9.88"29.88"15.88"42.075"42"94.875"97.5"22.432"27.25"2.175"2.99"30"30"36.94"38.75"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 W6RV1 Bard WG4S2 Difference
Unit width42.075"42"-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 W6RV1 Bard WG4S2 Difference
Unit height94.875"97.5"+2.625"
Unit depth22.432"27.25"+4.818"
Unit weight520 lbs685 lbs+165 lbs
Distance from the top to Supply2.175"2.99"+0.815"
Distance from Return to bottom36.94"38.75"+1.81"