Bard W60L1
Bard 45WH1
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air29.88"9.88"29.88"15.88"30"10"30"16"42.075"42"84.875"84"22.432"22"2.175"1.375"30"30"26.94"26.625"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 W60L1 Bard 45WH1 Difference
Unit width42.075"42"-0.075"
Supply Air29.88" x 9.88"30" x 10"+0.12" x +0.12"
Return Air29.88" x 15.88"30" x 16"+0.12" x +0.12"
Distance between Supply and Return30"30"0"
Mismatch Bard W60L1 Bard 45WH1 Difference
Unit height84.875"84"-0.875"
Unit depth22.432"22"-0.432"
Unit weight525 lbs500 lbs-25 lbs
Distance from the top to Supply2.175"1.375"-0.8"
Distance from Return to bottom26.94"26.625"-0.315"