International comfort products C Series Installation Instructions Manual page 23

INSTALLATION INSTRUCTIONS
Figure 24 Duct Flanges
PERFORATED
DISCHARGE DUCT
FLANGE
Table 5 Opening Dimensions - - in. (mm)
FURNACE
CASING WIDTH
IN. (mm)
Upflow Applications on Combustible or Noncombustible Flooring
14–3/16
(360)
Downflow applications on combustible flooring (subbase required)
Downflow Applications on Combustible Flooring with Coil Assembly or
Upflow Applications on Combustible or Noncombustible Flooring
17–1/2
(445)
Downflow applications on combustible flooring (subbase required)
Downflow Applications on Combustible Flooring with Coil Assembly or coil
Upflow Applications on Combustible or Noncombustible Flooring
21
(533)
Downflow Applications on Combustible Flooring with Coil Assembly or coil
Upflow Applications on Combustible or Noncombustible Flooring
24- -1/2
(622)
Downflow Applications on Combustible Flooring with Coil Assembly or
440 01 4104 07
UPFLOW
90°
120°
MIN
APPLICATION
(subbase not required)
Downflow Applications on Noncombustible Flooring
(subbase not required)
coil box (subbase not required)
(subbase not required)
Downflow Applications on Noncombustible Flooring
(subbase not required)
box (subbase not required)
(subbase not required)
Downflow Applications on Noncombustible Flooring
(subbase not required)
Downflow applications on combustible flooring
(subbase required)
box (subbase not required)
(subbase not required)
Downflow Applications on Noncombustible Flooring
(subbase not required)
Downflow applications on Combustible flooring
(subbase required)
coil box (subbase not required)
Specifications subject to change without notice.
DOWNFLOW
YES
YES
120°
MIN
NO
PLENUM OPENING
A
12- -11/16
(322)
12- -9/16
(319)
11- -13/16
(284)
12- -5/16
(319)
16
(406)
15- -7/8
(403)
15- -1/8
(384)
15- -1/2
(394)
19- -1/2
(495)
19- -3/8
(492)
18- -5/8
(473)
19
(483)
23
(584)
22- -7/8
(581)
22- -1/8
(562)
22- -1/2
(572)
Gas Furnace: N9MSB
HORIZONTAL
90°
YES
YES
120°
MIN
NO
FLOOR OPENING
B C
21- -5/8 13- -5/16 22- -1/4
(549) (338) (565)
19 13- -3/16 19- -5/8
(483) (335) (498)
19 13- -7/16 20- -5/8
(483) (341) (600)
19 13- -5/16
(483) (338) (508)
21- -5/8 16- -5/8 22- -1/4
(549) (422) (565)
19 16- -1/2 19- -5/8
(483) (419) (498)
19 16- -3/4 20- -5/8
(483) (425) (600)
19 16- -1/2
(483) (419) (508)
21- -5/8 20- -1/8 22- -1/4
(549) (511) (565)
19 20 19- -5/8
(483) (508) (498)
19 20- -1/4 20- -5/8
(483) (514) (600)
19 20
(483) (508) (508)
21- -1/8 23- -5/8 22- -1/4
(537) (600) (565)
19 23- -1/2 19- -5/8
(483) (597) (498)
19 23- -3/4 20- -5/8
(483) (603) (600)
19 23- -1/2
(483) (597) (508)
YES
YES
NO
A10493
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20
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