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Venting Methods - KitchenAid Pro LineTM Installation And Use Instructions Manual

30" (76.2 cm) 36" (91.4 cm) 42" (106.7 cm) 48" (121.9 cm) wall-mount pro line range hood
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Venting methods

This canopy range hood is factory set for
vertical venting. For rear vent applications, the
blower must be turned inside the range hood so
that the blower vents to the rear as indicated.
The blower is turned by removing two screws
on each side of the blower, rotating the blower
with the exhaust opening facing the rear and
then replacing the screws. The exhaust cover(s)
must be moved to block the unused opening(s).
The blower must be converted before installing
the range hood.
Vent system needed for installation is not
included. The 30" (76.2 cm), 36" (91.4 cm) and
42" (106.7 cm) models have one exhaust
opening. 3-1/4" x 10" (8.3 cm x 25.4 cm)
rectangular, 7" (17.8 cm) round, 8" (20.3 cm)
round, 9" (22.9 cm) round, or 10" (25.4 cm)
round vent may be used. The hood exhaust
opening is 3-1/4" x 10" (8.3 cm x 25.4 cm).
The 48" (121.9 cm) model has two 3-1/4" x 10"
(8.3 cm x 25.4 cm) exhaust openings. It is
recommended that Vent Transition Kit No.
8284757 be used to transition the two openings
into one 10" (25.4 cm) round vent. (Cannot be
used with Chimney Extension Kit No. 8284754.)
Vent system can terminate either through the
roof or wall.
The vent system length should not exceed the
lengths shown in the chart.
Calculating the 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
3-1/4" x 10" (8.3 cm x 25.4 cm) 7" (17.8 cm), 8" (20.3 cm),
45° elbow
90° elbow
90° flat elbow
transition to round
wall cap
4
3-1/4" x 10"
(8.3 cm x 25.4 cm)
vertical venting
(roof or wall)
Rectangular
7.0 feet
(2.1 m)
5.0 feet
(1.5 m)
12.0 feet
(3.7 m)
5.0 feet
(1.5 m)
0.0 feet
(0.0 m)
Vertical venting
Vent size
3-1/4" x 10" (8.3 cm x 25.4 cm)
7" (17.8 cm) round
8" (20.3 cm) round
9" (22.9 cm) round
10" (25.4 cm) round
9" (22.9 cm), 10" (25.4 cm)
Round
2.5 feet
(0.8 m)
5.0 feet
(1.5 m)
Horizontal venting
roof cap
3-1/4" x 10"
(8.3 cm x 25.4 cm)
horizontal venting
Maximum length
35 ft. (10.7 m)
40 ft. (12.2 m)
50 ft. (15.2 m)
60 ft. (18.3 m)
60 ft. (18.3 m)
Example for 3-1/4" x 10"
(8.3 cm x 25.4 cm) vent system
3-1/4" x 10"
(8.3 cm x 25.4 cm)
elbow
6 ft. (1.8 m)
2 ft.
(0.6 m)
Maximum length
1 — 90° elbow
8 ft. (2.4 m) straight
1 — wall cap
Length of 3-1/4" x 10"
(8.3 cm x 25.4 cm)
system
Note: Flexible vent is Not
recommended.
Flexible vent creates back pressure
and air turbulence that greatly
reduces performance.
wall cap
wall
cap
= 35 ft. (10.7 m)
= 5 ft. (1.5 m)
= 8 ft. (2.4 m)
= 0 ft.
(0 m)
= 13 ft. (3.9 m)

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Pro line series