6

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.

6" (15.2 cm) or Larger Round Vent System

Example vent system

3¹⁄₄" x 10" (8.3 cm x 25.4 cm) Vent System

Example vent system

Electrical Requirements
IMPORTANT: The range hood must be electrically grounded in
accordance with local codes and ordinances, or in the absence
of local codes, with the National Electrical Code, ANSI/NFPA 70
(latest edition) or Canadian Electrical Code, CSA C22.1
No. 0-M91 (latest edition).
If codes permit and a separate ground wire is used, it is
recommended that a qualified electrical installer determine that
the ground path is adequate.
A copy of the above code standards can be obtained from:
National Fire Protection Association
One Batterymarch Park
Quincy, MA 02269
CSA International
8501 East Pleasant Valley Road
Cleveland, Ohio 44131-5575
■A 120 volt, 60 Hz, AC only, 15- or 20-amp, fused electrical
circuit is required. A time-delay fuse or circuit breaker is also
recommended. It is recommended that a separate circuit
serving only this range hood be provided.
■This range hood is equipped with a power supply cord having
a 3 prong grounding plug.
Vent Piece Round
45° elbow 2.5 ft
(0.8 m)
90° elbow 5.0 ft
(1.5 m)
6" (15.2 cm) or larger
wall cap 0.0 ft
(0.0 m)
3¹⁄₄" x 10" (8.3 cm x 25.4 cm)
to 6" (15.2 cm) or larger 4.5 ft
(1.4 m)
3¹⁄₄" x 10" (8.3 cm x 25.4cm)
to 6" (15.2 cm) or larger
90° elbow
5.0 ft
(1.5 m)
Maximum Recommended Length = 50 ft (15.2 m)
1 - 90° elbow = 5.0 ft (1.5 m)
1 - wall cap = 0.0 ft (0.0 m)
8 ft (2.4 m) straight = 8.0 ft (2.4 m)
Length of 7" (17.8 cm) system = 13.0 ft (3.9 m)
Wall cap
90˚ elbow
2 ft (0.6 m)
6 ft (1.8 m)
Vent Piece
3¹⁄₄" x 10" (8.3 cm x 25.4 cm)
90° elbow 5.0 ft
(1.5 m)
3¹⁄₄" x 10" (8.3 cm x 25.4 cm)
flat elbow 12.0 ft
(3.7 m)
3¹⁄₄" x 10" (8.3 cm x 25.4 cm)
wall cap 0.0 ft
(0.0 m)
Maximum Recommended Length = 35 ft (10.7 m)
1 - 90° elbow = 5.0 ft (1.5 m)
8 ft (2.4 m) straight = 8.0 ft (2.4 m)
1 - wall cap = 0.0 ft (0.0 m)
Length of 3¹⁄₄" x 10" (8.3 cm x 25.4 cm)
system = 13.0 ft (3.9 m)
Wall cap
3¹⁄₄" x 10"
(8.3 x 25.4 cm)
elbow
2 ft
(0.6 m)
6 ft (1.8 m)