For vented models:
Vent system
requirements
Do not terminate the vent system
in an attic or other enclosed area.
Do not use 4" (10.2 cm) laundry-
type wall caps.
Use metal vent only. Rigid metal
vent is recommended. Do not use
plastic or metal foil vent.
Flexible vent is not
recommended. Flexible vent
creates back pressure that greatly
reduces the hood's performance.
• The size of the vent should be
uniform.
• Use no more than three 90°
elbows.
• Make sure there is a minimum
of 24" (61 cm) of straight vent
between the elbows if more
than one elbow is used.
• Do Not install two elbows
together.
• The length of vent system and
number of elbows should be
kept to a minimum to provide
efficient performance.
• The vent system must have a
damper. If roof or wall cap has
a damper, Do Not use damper
supplied with the range hood.
• Use duct tape to seal all joints
in the vent system.
• Use caulking to seal exterior wall
or roof opening around the cap.
Note: It is recommended that the
vent system be installed before
installing the hood.
Venting methods
Vent system needed for
installation is not included. 3-1/4"
10" (8.3 cm x 25 cm) rectangular is
recommended.
3-1/4" x 10"
(8.3 cm x 25 cm)
vent through
the roof
Roof venting
3-1/4" x 10"
(8.3 cm x 25 cm)
vent through
the wall
Wall venting
Recommended vent system
length
Use 3 1/4" x 10" (8.3 cm x 25 cm)
vent with maximum length of
26 feet (8 m) for vent system. For
best performance, use no more
than three 90° elbows. To calculate
the length of system you need,
add the equivalent feet (meters)
for each vent piece used in the
system. See the following
example.
Product dimensions
Note: Underside of hood must be a minimum of
24" (61 cm) from cooking surface.
13-3/8"
x
(34.0 cm)
4-3/4"
(12.1 cm)
1-3/16"
(3.0 cm)
5-1/16"
(12.9 cm)
17-3/4"
(45.1 cm)
3-1/4" x 10" (8.3 cm x 25 cm)
3-1/4" x 10"
(8.3 cm x 25 cm)
90° elbow
wall
cap
3 ft.
(0.93 m)
Maximum length
1 — 90° elbow
9 ft. (2.8 m) straight
1 — wall cap
Length of 3-1/4" x 10"
(8.3 cm x 25 cm)
system
Recommended standard
fittings
3-1/4" x 10"
(8.3 cm x 25 cm)
90° elbow
= 5 ft. (1.5 m)
3-1/4" x 10"
(8.3 cm x 25 cm)
flat elbow
= 12 ft. (3.7 m)
3-1/4" x 10"
(8.3 cm x 25 cm)
wall cap
= 0 ft. (0 m)
9-15/16"
3-3/16"
(25.2 cm)
(8.1 cm)
2-9/16"
(6.5 cm)
9-27/32"
(25.0 cm)
30" (76.2 cm)
1-3/16"
36" (91.4 cm)
(3.0 cm)
Roof-vented model shown.
vent system
wall
cap
6 ft. (1.8 m)
= 26 ft. (8 m)
= 5 ft. (1.5 m)
= 9 ft. (2.8 m)
= 0 ft. (0 m)
= 14 ft. (4.3 m)
1-9/16"
(4.0 cm)
2-11/32"
(6.0 cm)
7-3/4"
(19.6 cm)
1-3/4"
(4.4 cm)
1-13/16"
Do not
(4.6 cm)
use these
knockouts
3
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