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Venting methods
This canopy range hood isfactory set for
venting through the roof or wall. For non-
vented (recirculating)installations, see
"Non-Vented (Recirculating) Kits" on
back page.
Vent system needed for installation is not
included. 3-1/4" x 10" (8.3cmx 25 cm)
rectangular, 7" (17.8cm) round, 8"
(20.3 cm) round or 9" (22.9 cm) round
vent may be used.The hood exhaust
opening is3-1/4" x 10" (8.3 cmx 25 cm).
Vent system can terminate either through
the roof or wall. Tovent through a wall,
a 90° elbow is needed.
The vent system length should not
exceed the lengths shown in the chart
below,
Vent size Maximum length
3-1/4" x 10" 35 ft. (10.7m)
(8.3 cmx 25 cm)
7"(17.8cm) round 40 ft. (12.2 m)
8" (20.3 cm) round 50 ft. (15.2 m)
9" (22.9 cm) round 60 ft. (18.3 m)
Vertical roof venting
roof cap
3-1/4" x 10" _'_
(8.3cmx 25 cm) / ] L TM
through the roof _ _:_..'_
i
Horizontal wall venting
3-1/4-" x 10" F I
Calculating the vent system length
To calculate the length of the system
you need, add the equivalent feet for
each vent piece used in the system,
Vent Piece
45° elbow
90° elbow
90° flat elbow
transition to round
wall cap
3-1/4" x 10" (8.3 cm x 25 cm}
Rectangular
7.0feet
(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)
7" (17.8cm), 8" (20.3cm}
or 9" (22.9 cm} Round
2.5feet
(0.8cm)
5.0feet
(1.5m)
3-1/4" x 10" (8.3 cmx 25 cm)
vent system
3-1/4" x 10" wail
(8,3 cm x 25 crn)
elbow cap
Maximum length = 35 ft. (10.7m)
1-90 ° elbow = 5ft. (1.5m)
8 ft. (2.4 m) straight = 8 ft. (2.4 m)
1 -wallcap = Oft. (Ore)
Length of 3-1/4" x 10"
(8.3 cmx 25 cm)
system = 13ft. (4 m)
Note: Flexible vent is Not
recommended.
If it is used, each foot of flexible vent
used is equivalent to two feet
(61 cm) of straight metal vent when
calculating the vent system length,
(Example: A flexible elbow equals two
standard elbows,)
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