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Roof Curb Dimensions - Small Base Gas/Electric
Opening for Power Entry
Through Unit Base
5-1/2 x 5-5/8 in.
(140 x 31 mm)
Insulated
Panels
Opening for Gas Entry
Through Unit Base
3 x 13 in.
(76 x 330 mm)
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.
44-3/8
(1127)
44-3/8
(1127)
NOTE - Roof deck may be omitted within confines of curb.
3/4 (19)
11-1/2
(287)
3
(76)
1-3/8
13
(35)
(330)
3-3/4
(95)
Page 4
RETURN
OPENING
16-7/8
(429)
2-1/8
(54)
5-3/4
(146)
SUPPLY
5-1/2
OPENING
(140)
17-1/4
(438)
13-7/8
(352)
8 (203)
14 (356)
18 (457)
11-1/2
24 (610)
(287)
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