Bryant 915SA Product Data page 12

A
FACTORY-SUPPLIED
FIELD-INSTALLED
INSULATION
Assembled
FURNACE FURNACE IN DOWNFLOW
CASING WIDTH
Furnace with or without Cased Coil
17--- 1/2 (444.5)
Furnace with or without Cased Coil
21 (533.4)
Furnace with or without Cased Coil
24--- 1/2 (622.3)
*The plenum should be constructed 1/4 ---in. (6 mm) smaller in width and depth than the plenum dimensions shown above.
Concentric Vent Kit
A concentric vent kit allows vent and combustion- -air pipes to
terminate through a single exit in a roof or side wall. One pipe
runs inside the other allowing venting through the inner pipe and
combustion air to be drawn in through the outer pipe.
DOWNFLOW SUBBASE
1
1 / 4-IN. TYP
PLENUM
OPENING
C
A97427
DIMENSIONS (IN. / MM)
APPLICATION
Assembly or Coil Box
Assembly or Coil Box
Assembly or Coil Box
A93086
LOCATING
TAB
LOCATING
TAB
PLENUM OPENING*
A B
15--- 1/8 16--- 3/4
19 (482.6)
(384.2) (425.5)
18--- 5/8 20--- 1/4
19 (482.6)
(396.4) (514.4)
22--- 1/8 23--- 3/4
19 (482.6)
(562.0) (603.3)
Downflow Subbase
One base fits all furnace sizes. The base is designed to be installed
between the furnace and a combustible floor when no coil box is
used or when a coil box other than a Carrier cased coil is used. It is
CSA design certified for use with Carrier branded furnaces when
installed in downflow applications.
12
B
4
3
D
2
1
2
3
4
A88207
Disassembled
FLOOR OPENING
HOLE NO. FOR
WIDTH
C D
ADJUSTMENT
20--- 3/8
(517.5)
20--- 3/8
(517.5)
20--- 3/8
(517.5)
1
3
2
1
A88202