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262259-YTG-B-0107
DUCT SUPPORT RAILS
2"
35-7/8"
84"
DUCT SIZES:
Supply Air = 22-1/2" x 35-5/8"
Return Air = 32-7/8" x 35-5/8"
FIGURE 10 -UNIT ROOF CURB DIMENSIONS
FIGURE 11 -ROOF CURB DUCT OPENINGS
DIMENSION
1.
The 2" space between the ducts allows for "jumping" an
existing roof joist.
Unitary Products Group
SUPPLY AIR*
BACK OF UNIT
RETURN AIR*
4"
14-1/4" (15 Ton)
25-1/4" (20, 25 Ton)
4"
MIN. ROOF OPENING:
39-7/8" WIDE X 61-7/8" Long
OUTDOOR COIL
END OF UNIT
4"
2"
22-3/4"
33-1/8"
115-5/16" (15 Ton)
126-1/4" (20, 25 Ton)
*Supply and Return Air (including duct support rails)
as shown, are typical for bottom duct applications.
FRONT
OF
For location of horizontal duct applications
(on back of unit), refer to Unit Dimension details.
UNIT
2.
The 58-1/2" overall dimension of the ducts allows duct-
work penetration between roof joists that are spaced on
72" centers.
NOTE: Ducts can be installed into the curb from the roof. All
electrical and gas line connections can be made
inside the curb.
35
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