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RT-PRC001-EN58
12½, 15, 17½ Ton (Standard Efficiency)
All dimensions are in inches.
RETURN
SUPPLY
1 1/2" PERIMETER
CURB FLANGE
14 1/16"
1"
1"
1"
1 13/16"
7 7/16"
2"
66 5/8"
63"
55 1/2"
20 7/8"
17 1/8"
28 1/2"
102 1/4"
101 7/8"
7 1/2"
67"
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.
Roofcurb is intended for downflow use
only.
Dimensional
Data
Downflow Unit Clearance
12½ Ton (High Efficiency)