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.
3¹⁄₄" x 10" (8.3 cm x 25.4 cm) Vent System
Vent Piece
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) | 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) |
Example vent system
3¹⁄₄" x 10" |
|
(8.3 x 25.4 cm) |
|
elbow | Wall cap |
6 ft (1.8 m) |
2ft
(0.6 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) | = 13.0 ft (3.9 m) |
system |
|
Electrical Requirements
Observe all governing codes and ordinances.
Ensure that the electrical installation is adequate and in conformance with National Electrical Code, ANSI/NFPA 70 (latest edition), or CSA Standards
If codes permit and a separate ground wire is used, it is recommended that a qualified electrician 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, OH
■A 120 volt, 60 Hz., AC only,
■If the house has aluminum wiring, follow the procedure below:
1.Connect a section of solid copper wire to the pigtail leads.
2.Connect the aluminum wiring to the added section of copper wire using special connectors and/or tools designed and UL listed for joining copper to aluminum.
Follow the electrical connector manufacturer's recommended procedure. Aluminum/copper connection must conform with local codes and industry accepted wiring practices.
■Wire sizes and connections must conform with the rating of the appliance as specified on the model/serial rating plate. The model/serial plate is located behind the filter on the rear wall of the range hood.
■Wire sizes must conform to the requirements of the National Electrical Code, ANSI/NFPA 70 (latest edition), or CSA Standards C22.
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