82
All dimensions are in inches.
NOTE:
Duct flanges mount 7-7/16"
down inside the curb on the
1-1/2" curb flanges. See
recommended duct dimensions
on the next page.
Dimensional 15-25 Ton High Efficiency
Data 20, 25 Ton Standard Effciency
RETURN
SUPPLY
1 1/2" PERIMETER
CURB FLANGE
14 1/16"
1"
1"
1"
1 13/16"
7 7/16"
2"
80 5/8"
77"
69 1/2"
22 1/4"
23 1/4"
28 9/16"
116 7/8"
117 3/16"
7 1/2"
81"