Bryant 312A Installation, Start-Up, Operating And Service And Maintenance Instructions page 13

FURNACE
CASING
WIDTH
Upflow Applications on Combustible or Noncombustible
Flooring (KGASB subbase not required)
Downflow Applications on Noncombustible Flooring (KGASB
14–3/16
Downflow applications on combustible flooring
Downflow Applications on Combustible Flooring with CD5 or
CK5 Coil Assembly or KCAKC coil box
Upflow Applications on Combustible or Noncombustible
Flooring (KGASB subbase not required)
Downflow Applications on Noncombustible Flooring
(KGASB subbase not required)
17–1/2
Downflow applications on combustible flooring
Downflow Applications on Combustible Flooring with CD5 or
CK5 Coil Assembly or KCAKC coil box
(KGASB subbase not required)
Upflow Applications on Combustible or Noncombustible
Flooring (KGASB subbase not required)
Downflow Applications on Noncombustible Flooring
(KGASB subbase not required)
21
Downflow applications on combustible flooring
Downflow Applications on Combustible Flooring with CD5 or
CK5 Coil Assembly or KCAKC coil box
(KGASB subbase not required)
Upflow Applications on Combustible or Noncombustible
Flooring (KGASB subbase not required)
Downflow Applications on Noncombustible Flooring
(KGASB subbase not required)
24--- 1/2 Downflow applications on Combustible flooring
Downflow Applications on Combustible Flooring with CD5 or
CK5 Coil Assembly or KCAKC coil box
(KGASB subbase not required)
UPFLOW
90û
120û
MIN
Table 4 – Opening dimensions (In.)
APPLICATION
subbase not required)
(KGASB subbase required)
(KGASB subbase not required)
(KGASB subbase required)
(KGASB subbase required)
(KGASB subbase required)
D OWNFLOW
YES
YES
120û
MIN
NOT
RECOMMENDED
Fig. 14 - - Duct Flanges
PLENUM OPENING
A
12--- 11/16 21--- 5/8
12--- 9/16 19
11--- 13/16 19
12--- 5/16 19
16 21--- 5/8
15--- 7/8 19
15--- 1/8 19
15--- 1/2 19
19--- 1/2 21--- 5/8
19--- 3/8 19
18--- 5/8 19
19 19
23 21--- 1/8
22--- 7/8 19
22--- 1/8 19
22--- 1/2 19
HORIZONTAL
90û
YES
YES
120û
MIN
NOT
RECOMMENDED
13
FLOOR OPENING
B C D
13--- 5/16 22--- 1/4
13--- 3/16 19--- 5/8
13--- 7/16 20--- 5/8
13--- 5/16 20
16--- 5/8 22--- 1/4
16--- 1/2 19--- 5/8
16--- 3/4 20--- 5/8
16--- 1/2 20
20--- 1/8 22--- 1/4
20 19--- 5/8
20--- 1/4 20--- 5/8
20 20
23--- 5/8 22--- 1/4
23--- 1/2 19--- 5/8
23--- 3/4 20--- 5/8
23--- 1/2 20
YES
YES
NOT
RECOMMENDED
A02329