Unit Roof Curb Dimensions; Roof Curb Duct Openings Dimensions; Cut Away Of Roof Curb - York DH 180 Technical Manual

FIGURE 11 - UNIT ROOF CURB DIMENSIONS
FIGURE 12 - ROOF CURB DUCT OPENINGS
DIMENSIONS
1. The 2" space between the ducts allows for "jumping" an
existing roof joist.
2. The 58-1/2" overall dimension of the ducts allows
ductwork 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.
Johnson Controls Unitary Products
(17.5 thru
25 Ton)
(17.5 & 20 Ton)
(17.5 thru
25 Ton)
FIGURE 13 - CUT AWAY OF ROOF CURB
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