Bard W42L2
Bard W72AF
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"84.875"93"22.432"25.52"2.175"2.18"30"30"26.94"35.06"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 W42L2 Bard W72AF 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 from the top to Supply2.175"2.18"+0.005"
Distance between Supply and Return30"30"0"
Mismatch Bard W42L2 Bard W72AF Difference
Unit height84.875"93"+8.125"
Unit depth22.432"25.52"+3.088"
Unit weight475 lbs568 lbs+93 lbs
Distance from Return to bottom26.94"35.06"+8.12"