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Adjustable Roof Curb Dimensions
ADJUSTABLE PITCH ROOF CURB
BUILT-IN RAIN
DIVERTER
(Not Shown)
42-7/8
(1089)
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.
FRONT FLANGE
8 (203)
NOTE:
Minimum
Height
4 (102)
BUILT-IN DRIP EDGE
6
(152)
SUPPLY
11-1/2
AIR
(292)
OPENING
B
A
Usage
in.
24, 30, 36
42-7/8
42, 48, 60
51-3/8
NOTE - Roof deck may be omitted within confines of curb.
UNIT BASE RAIL
A
RETURN
AIR
OPENING
2-1/8
(54)
C
B
mm
in.
mm
1089
13-7/8
352
1305
19-1/2
495
Page 6
3/4 (76)
UNIT BASE RAIL
CLIPS (4)
1
(25)
C
in.
mm
16-7/8
429
19-1/2
495
UNIT BASE RAIL
CLIPS (4)
SIDES AND
BACK FLANGE
6 (152)
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