KitchenAid 30" (76.2 cm) Cooktop Installation Instructions Manual page 6

Concrete Slab Installations - Exhaust Through Wall
B
A
O
N
M
A. Wall cap
B. 6" (15.2 cm) round metal vent
C. 16" (40.6 cm) maximum
D. 6" (15.2 cm) round PVC
sewer pipe
E. 5" to 6" (12.7 cm to 15.2 cm)
transition
F. 6" (15.2 cm) round
metal duct
G. 6" (15.2 cm) round
PVC coupling
H. Concrete slab
Calculating Vent System Length
To calculate the length of the system you need, add the
equivalent feet (meters) for each vent piece used in the system.
Vent Piece
45° elbow
90° elbow
6" (15.2 cm)
wall cap
3 " x 10" (8.3 cm x 25.4 cm)
to 6" (15.2 cm) transition
6
D
E
F
C
G
H
I
J
L
K
I. 6" (15.2 cm) round PVC
sewer pipe
J. 6" (15.2 cm) round 90°
PVC sewer pipe elbow
K. Tightly pack gravel or sand
completely around pipe.
L. 30 ft (9.1 m) max.
M. 6" (15.2 cm) round 90°
PVC sewer pipe elbow
N. 6" (15.2 cm) round PVC
coupling
O. 12" (30.5 cm) minimum
6" (15.2 cm) Round
2.5 ft
(0.8 m)
5.0 ft
(1.5 m)
0.0 ft
(0.0 m)
4.5 ft
(1.4 m)
6" (15.2 cm) to 3 " x 10"
(8.3 cm x 25.4 cm) transition
3 " x 10" (8.3 cm x 25.4 cm)
to 6" (15.2 cm) 90° elbow
transition
6" (15.2 cm) to 3 " x 10"
(8.3 cm x 25.4 cm) 90° elbow
transition
3 " x 10" (8.3 cm x 25.4 cm)
90° elbow
3 " x 10" (8.3 cm x 25.4 cm)
flat elbow
3 " x 10" (8.3 cm x 25.4 cm)
wall cap
5" to 6" (12.7 cm to 15.2 cm)
transition
Example vent system
90˚ elbow
2 ft
(0.6 m)
1- 90° elbow = 5 ft (1.5 m)
8 ft (2.4 m) straight = 8 ft (2.4 m)
1 - wall cap = 0 ft (0 m)
System length = 13 ft (3.9 m)
NOTE: Flexible vent is not recommended. Flexible vent creates
back pressure and air turbulence that greatly reduce
performance.
1 ft
(0.3 m)
9.0 ft
(2.7 m)
5.0 ft
(1.5 m)
5.0 ft
(1.5 m)
12.0 ft
(3.7 m)
0.0 ft
(0.0 m)
1 ft
(0.3 m)
wall cap
6 ft (1.8 m)