York DJ 240 Manuel D’Utilisation

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261660-YTG-D-0708
Johnson Controls Unitary Products
35
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 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.
FIGURE 10 -  UNIT ROOF CURB DIMENSIONS
25-1/4"
FIGURE 11 -  ROOF CURB DUCT OPENINGS
DIMENSION
FIGURE 12 -  CUT AWAY OF ROOF CURB