036-21410-001-A-0502
48 UnitaryProducts Group
1. The2” space between the ducts allows for “jumping” an
existingroof joist.
2. The58-1/2” overall dimension of the ducts allows duct-
workpenetration between roof joists that are spaced on
72”centers.
NOTE:Ducts can be installed into the curb from the roof. All
electricaland gas line connections can be made inside the
curb.
FIGURE 9: UNIT ROOF CURB DIMENSIONS
25-1/4"
FIGURE 10:ROOF CURB DUCT OPENINGS
DIMENSION FIGURE 11:CUT AWAYOF ROOF CURB