Page 6
A
BC
3/4 (76)
6
(152)
1
(25)
11-1/2
(292)
42-7/8
(1089)
SUPPLY
AIR
OPENING
RETURN
AIR
OPENING
2-1/8
(54)
UNIT BASE RAIL
BUILT-IN DRIP EDGE
BUILT-IN RAIN
DIVERTER
(Not Shown)
FRONT FLANGE
8 (203)
SIDES AND
BACK FLANGE
6 (152)
UNIT BASE RAI
CLIPS (4)
NOTE:
Minimum
Height
4 (102)
UNIT BASE RAIL
CLIPS (4)
ADJUSTABLE PITCH ROOF CURB
Usage
ABC
in. mm in.mmin. mm
24, 30, 36 42-7/8 1089 13-7/8 35216-7/8429
42, 48, 60 51-3/8 1305 19-1/2 49519-1/2495
NOTE - Roof deck may be omitted within connes of curb.
NOTE - If bottom entry is used, condensate from the heat exchanger may leak during warm ambient temperatures in humid
climates. Ensure that bottom entry is watertight, if used.
Adjustable Roof Curb Dimensions
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