Opening Dimensions - Carrier 120 Series Operating Instructions Manual
Condensing gas furnace
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Also See for 120 Series:
- Installation, start-up, and operating instructions manual (12 pages) ,
- Installation, start-up, operating and service and maintenance instructions (49 pages) ,
- Manual (24 pages)
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A
PLENUM
OPENING
B
D
FLOOR
OPENING
C
FURNACE
CASING
WIDTH
IN. (mm)
Upflow Applications on Combustible or Noncombustible Floor-
ing (KGASB subbase not required)
Downflow Applications on Noncombustible Flooring (KGASB
17–1/2
Downflow applications on combustible flooring (KGASB sub-
(445)
Downflow Applications on Combustible Flooring with CNPV,
CNRV, CAR or CAP Coil Assembly or KCAKC coil box (KGASB
Upflow Applications on Combustible or Noncombustible Floor-
ing (KGASB subbase not required)
Downflow Applications on Noncombustible Flooring (KGASB
21
Downflow applications on combustible flooring (KGASB sub-
(533)
Downflow Applications on Combustible Flooring with CNPV,
CNRV, CAR or CAP Coil Assembly or KCAKC coil box (KGASB
Upflow Applications on Combustible or Noncombustible Floor-
ing (KGASB subbase not required)
Downflow Applications on Noncombustible Flooring (KGASB
24---1/2
Downflow applications on Combustible flooring (KGASB sub-
(622)
Downflow Applications on Combustible Flooring with CNPV,
CNRV, CAR or CAP Coil Assembly or KCAKC coil box (KGASB
FURNACE
(OR COIL CASING
WHEN USED)
COMBUSTIBLE
FLOORING
DOWNFLOW
SUBBASE
SHEET METAL
PLENUM
FLOOR
OPENING
Fig. 18 - - Installation on Combustible Flooring
Table 8 – Opening Dimensions - - In. (mm)
APPLICATION
subbase not required)
base required)
subbase not required)
subbase not required)
base required)
subbase not required)
subbase not required)
base required)
subbase not required)
PLENUM OPENING
A
16
21--- 5/8
(406)
(549)
15--- 7/8
19
(403)
(483)
15--- 1/8
19
(384)
(483)
15--- 1/2
19
(394)
(483)
19--- 1/2
21--- 5/8
(495)
(549)
19--- 3/8
19
(492)
(483)
18--- 5/8
19
(473)
(483)
19
19
(483)
(483)
23
21--- 1/8
(584)
(537)
22--- 7/8
19
(581)
(483)
22--- 1/8
19
(562)
(483)
22--- 1/2
19
(572)
(483)
25
FURNACE
APPROVED
COIL ASSEMBLY
OR
COIL BOX
COMBUSTIBLE
FLOORING
SHEET METAL
PLENUM
FLOOR
OPENING
A10491
FLOOR OPENING
B
C
D
16--- 5/8
22--- 1/4
(422)
(565)
16--- 1/2
19--- 5/8
(419)
(498)
16--- 3/4
20--- 5/8
(425)
(600)
16--- 1/2
20
(419)
(508)
20--- 1/8
22--- 1/4
(511)
(565)
20
19--- 5/8
(508)
(498)
20--- 1/4
20--- 5/8
(514)
(600)
20
20
(508)
(508)
23--- 5/8
22--- 1/4
(600)
(565)
23--- 1/2
19--- 5/8
(597)
(498)
23--- 3/4
20--- 5/8
(603)
(600)
23--- 1/2
20
(597)
(508)
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