KitchenAid 8285364 Vent, Piece, Optional vent arrangement under Concrete slab

6" (15.2 cm) round metal vent

Determine equivalent length of vent. Maximum equivalent length of vent is 60 ft (18.3 m).

wall cap

12" (30.5 cm)

minimum

6" (15.2 cm) round PVC coupling

6" (15.2 cm) round 90° PVC sewer pipe elbow

6" (15.2 cm) transition

round PVC	6" (15.2 cm)
sewer pipe
	round metal vent
16" (40.6 cm)	6" (15.2 cm)
	round PVC
maximum
	coupling
	concrete slab
	6" (15.2 cm)
	round PVC
30" (76.2 cm)	sewer pipe
max.	6" (15.2 cm)
Tightly pack gravel or sand
	round 90°
completely around pipe.	PVC sewer
	pipe elbow

List the number of each piece and length of straight vent you will use. Multiply the equivalent length by the number of pieces. Add the totals to get the total equivalent length of your system.

Vent	Equivalent	No. of	Total
Piece	Length	Pieces/	Equivalent
		Length	Length
straight vent per lineal foot
3-1/4" x 10" (8.3 x 25.4 cm)	1 ft. (30.5 cm)
6" (15.2 cm) round	1 ft. (30.5 cm)

optional vent arrangement under

concrete slab

SBCCI

12" (30.5 cm)		6" (15.2 cm) round	transition
minimum		PVC sewer pipe	6" (15.2 cm)
		concrete	round metal vent
wall			6" (15.2 cm) round
		slab
cap			PVC coupling
			6" (15.2 cm)
			round sewer pipe
			6" (15.2 cm) round
window			90° PVC sewer
well		42"	pipe elbow
6"		(106.7 cm)	Tightly pack gravel or sand
(15.2 cm)		max.	completely around pipe.
	6" (15.2 cm) round
min.
	PVC coupling
optional vent arrangement through				SBCCI
window well under concrete slab

2 ft.	6" (15.2 cm) 90° elbow
(61 cm)
	4 ft. (1.2 m)
6" (15.2 cm)
90° elbows
6" (15.2 cm)
wall cap
	6 ft. (1.8 m)

90° elbows (3)	= 15 ft. (4.6 m)
12 feet (3.7 m) straight	= 12 ft. (3.7 m)
Wall cap	=	0 ft. (0 m)
Equivalent length of	=	27ft. (8.3 m)
6" (15.2 cm) round system

Note: Flexible metal vent is Not recommended.

If it is used, calculate each foot (30 cm) of flexible vent as two feet (61 cm) of straight metal vent. Flexible metal elbows count twice as much as standard elbows.

6" (15.2 cm) flexible	2 ft. (61 cm)
elbow
6" (15.2 cm) round 45° elbow	2.5 ft.
	(76.2 m)
6" (15.2 cm) round 90° elbow	5 ft.
	(1.5 m)
3-1/4" x 10" (8.3 x 25.4 cm)	12 ft.
flat elbow	(3.7 m)
3-1/4" x 10" (8.3 x 25.4 cm)	5 ft.
90° elbow	(1.5 m)
transition to round
3-1/4" x 10" (8.3 x 25.4 cm) to	9 ft.
6" (15.2 cm) 90° elbow	(2.7 m)
air flow
3-1/4" x 10" (8.3 x 25.4 cm) to	4.5 ft.
6" (15.2 cm)	(1.4 m)
transition to flat
6" (15.2 cm) to 3-1/4" x 10"	5 ft.
(8.3 x 25.4 cm) 90° elbow	(1.5 m)
air flow
6" (15.2 cm) to	1 ft.
3-1/4" x 10" (8.3 x 25.4 cm)	(30.5 cm)
air flow
wall cap*
3-1/4" x 10" (8.3 x 25.4 cm)	0 ft.
	(0 cm)
6" (15.2 cm) round	0 ft.
	(0 cm)
roof cap*
10" x 10" (25.4 X 25.4 cm)	0 ft.
	(0 cm)
thermal break
6" (15.2 cm) round	2 ft.
	(61 cm)

Total equivalent vent system length

*Length for required wall/roof cap has already been incorporated into rating for maximum vent system length. A suitable wall/roof cap must be used.

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