KitchenAid KECD806RBL - Pure 30 Inch Smoothtop Electric Cooktop Installation Instructions Manual page 5

30" (76.2 cm) and 36" (91.4 cm) electric built-in ceramic downdraft cooktop
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6" (15.2 cm) round metal vent
wall
cap
16" (40.6 cm)
12" (30.5 cm)
maximum
minimum
6" (15.2 cm)
round PVC
coupling
30" (76.2 cm)
max.
6" (15.2 cm)
Tightly pack gravel or sand
round 90° PVC
sewer pipe elbow
completely around pipe.
optional vent arrangement under
concrete slab
6" (15.2 cm) round
12" (30.5 cm)
PVC sewer pipe
minimum
concrete
wall
slab
cap
window
well
42"
(106.7 cm)
6"
max.
(15.2 cm)
6" (15.2 cm) round
min.
PVC coupling
optional vent arrangement through
window well under concrete slab
2 ft.
(61 cm)
6" (15.2 cm)
90° elbows
6" (15.2 cm)
wall cap
6 ft. (1.8 m)
90° elbows (3)
12 feet (3.7 m) straight
Wall cap
Equivalent length of
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)
transition
round PVC
6" (15.2 cm)
sewer pipe
round metal vent
6" (15.2 cm)
round PVC
coupling
concrete slab
6" (15.2 cm)
round PVC
sewer pipe
6" (15.2 cm)
round 90°
PVC sewer
pipe elbow
SBC CI
transition
6" (15.2 cm)
round metal vent
6" (15.2 cm) round
PVC coupling
6" (15.2 cm)
round sewer pipe
6" (15.2 cm) round
90° PVC sewer
pipe elbow
Tightly pack gravel or sand
completely around pipe.
SBC CI
6" (15.2 cm) 90° elbow
4 ft. (1.2 m)
= 15 ft. (4.6 m)
= 12 ft. (3.7 m)
= 0 ft. (0 m)
= 27ft. (8.3 m)
Determine equivalent length of vent. Maximum
equivalent length of vent is 60 ft (18.3 m).
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
Piece
straight vent per lineal foot
3-1/4" x 10" (8.3 x 25.4 cm)
6" (15.2 cm) round
6" (15.2 cm) flexible
elbow
6" (15.2 cm) round 45° elbow
6" (15.2 cm) round 90° elbow
3-1/4" x 10" (8.3 x 25.4 cm)
flat elbow
3-1/4" x 10" (8.3 x 25.4 cm)
90° elbow
transition to round
3-1/4" x 10" (8.3 x 25.4 cm) to
6" (15.2 cm) 90° elbow
air flow
3-1/4" x 10" (8.3 x 25.4 cm) to
6" (15.2 cm)
transition to flat
6" (15.2 cm) to 3-1/4" x 10"
(8.3 x 25.4 cm) 90° elbow
air flow
6" (15.2 cm) to
3-1/4" x 10" (8.3 x 25.4 cm)
air flow
wall cap*
3-1/4" x 10" (8.3 x 25.4 cm)
6" (15.2 cm) round
roof cap*
10" x 10" (25.4 X 25.4 cm)
thermal break
6" (15.2 cm) round
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.
Equivalent
No. of
Total
Length
Pieces/ Equivalent
Length
Length
1 ft. (30.5 cm)
1 ft. (30.5 cm)
2 ft. (61 cm)
2.5 ft.
(76.2 cm)
5 ft.
(1.5 m)
12 ft.
(3.7 m)
5 ft.
(1.5 m)
9 ft.
(2.7 m)
4.5 ft.
(1.4 m)
5 ft.
(1.5 m)
1 ft.
(30.5 cm)
0 ft.
(0 cm)
0 ft.
(0 cm)
0 ft.
(0 cm)
2 ft.
(61 cm)
5

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