Bryant 353AAV manual Downflow Subbase Dimensions IN. MM, Ment

DOWNFLOW SUBBASE DIMENSIONS - IN. (MM)

		PLENUM OPENING		FLOOR OPENING		HOLE NO.
FURNACE						FOR
CASING	FURNACE IN DOWNFLOW APPLICATION					WIDTH
WIDTH		A	B	C	D	ADJUST---
						MENT
17-1/2	Furnace with or without Cased Coil Assembly or	15---1/8	19	16-3/4	20---3/8	3
(445)	Coil Box	(384)	(483)	(425)	(518)
21	Furnace with or without Cased Coil Assembly or	18---5/8	19	20---1/4	20---3/8	2
(533)	Coil Box	(473)	(483)	(514)	(518)
24-1/2	Furnace with or without Cased Coil Assembly or	22-1/8	19 (483)	23-3/4	20---3/8	1
(622)	Coil Box	(562)		(603)	(518)

353AAV

*The plenum should be constructed 1/4---in. (6 mm) smaller in width and depth than the plenum dimensions shown above.

		LOCATING
		TAB
	1 1/4″ (32 μμ) TYP
	PLENUM
	OPENING	B
A		D
		LOCATING
		TAB
FACTORY-SUPPLIED	C
FIELD-INSTALLED
INSULATION

1

2

3

4

3

2

1

4

COMBUSTION-AIR PIPE FOR NON-DIRECT VENT (1-PIPE) APPLICATION

(SIZES 040 THROUGH 120 ONLY)

FIELD-SUPPLIED
2-IN. (51 mm) DIA.	FIELD-SUPPLIED
PVC 90° ELBOW
	2-IN. (51 mm) DIA.
	PVC PIPE

	A
COMBUSTION-AIR DISC
(FACTORY-SUPPLIED IN		A96211
LOOSE PARTS BAG)

LENGTH OF STRAIGHT

PIPE PORTION OF COMBUSTION AIR INLET PIPE ASSEMBLY - IN. (mm)

CASING WIDTH	A
17-1/2 (445 mm)	8-1/2 ± 1/2 (216 ± 13 mm)
21 (533 mm)	10-1/2 ± 1/2 (267 ± 13 mm)
24-1/2 (622 mm)	12 ± 1/2 (305 ± 13 mm)

CONCENTRIC VENT FOR DIRECT VENT (2-PIPE) APPLICATION (ALL MODEL SIZES)

B IN. (MM) DIA PVC

VENT/EXHAUST

13/16 (30 mm)

11/2

(38 mm)

F

E

C IN. (MM) DIA

D

A

B IN. (MM) DIA PVC

INTAKE/COMBUSTION AIR

KIT PART NO.		A*	B		C		D{		E		F
KGAVT0701CVT	33---	3/8 (848)	2 (51)	3	---1/2 (89)	16---	5/8 (422)	6---	1/4 (159)	5---	3/4 (146)
KGAVT0801CVT	38---	7/8 (987)	3 (76)	4---	1/2 (114)	21---	1/8 (537)	7---	3/8 (187)	6---	1/2 (165)

*Dimension A will change accordingly as Dimension D is lengthened or shortened.

{Dimension D may be lengthened to 60---in. (1524 mm) maximum. Dimension D may also be shortened by cutting the pipes provided in the kit to 12--- in. (305 mm) minimum.

8