KitchenAid KXD4630YSS0 Use & Care Manual page 9

Calculating Vent System Length
31¼ '' x 10" (8.3 x 25.4 cm) rectangular vent is required from the
blower motor box. It can be transitioned to 6" (15.2 cm) round
vent if needed.
Maximum Length of Vent System
Vent Length
6" (15.2 cm) round 35 ft (8.9 m)
31/4"x 10" (8.3 cm x 25.4 cm) 35 ft (8.9 m)
To calculate the length of the system you need, add the
equivalent feet (meters) for each vent piece used in the system.
31/4'' x 10" (8.3 cm x 25.4 cm)
Vent Piece Rectangular
31/4"x 10" (8.3 cm x 25.4 cm) 5.0 ft
90 ° elbow (1.5 m)
31/4 '' x 10" (8.3 cm x 25.4 cm) 4.5 ft
to 6" (15.2 cm) transition (1.4 m)
6" (15.2 cm) to 31/4 '' x 10" 1 ft
(8.3 cm x 25.4 cm) transition (0.3 m)
31/4"x 10" (8.3 cm x 25.4 cm) 5.0 ft
to 6" (15.2 cm) 90 ° elbow (1.5 m)
transition
6" (15.2 cm) to 31/4"x 10 '' 5.0ft
(8.3cmx25.4cm) 90 ° elbow (1.5m)
transition
31/4 '' x 10" (8.3 cm x 25.4 cm) 12.0 ft
flat elbow (3.7 m)
31/4"x 10" (8.3 cm x 25.4 cm) 0.0 ft
wall cap (0.0 m)
Vent Piece 6" (15.2 cm) Round
45 ° elbow 2.5 ft
(0.8 m)
90 ° elbow 5.0 ft
(1.5 m)
6" (15.2 cm) 0.0 ft
wall cap (0.0 m)
Example Vent System
C
A
D
A. Blower motor
B. Transition
C. 90° elbows
D. Back draft damper
The following example falls within the maximum vent length of
35 ft (8.9 m).
2 - 90 ° elbow
1 - wall cap
8 ft (2.4 m) straight
Transition
Length of 6" (15.2 cm) or
31/4" X 10 ''
(8.3 cm x 25.4 cm)
system = 22.5 ft (6.8 m)
= 10.0 ft (3 m)
= 0.0 ft (0.0 m)
= 8.0 ft (2.4 m)
= 4.5 ft (1.4 cm)