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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.
Vent Piece
45° elbow
90° elbow
Maximum equivalent vent length is 35 ft (10.7 m).
Example vent system
90 elbow
2 ft
(0.6 m)
The following example falls within the maximum recommended
vent length of 35 ft (10.7 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 system
= 13.0 ft (3.9 m)
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 C22.1-94, Canadian Electrical Code,
Part 1 and C22.2 No. 0-M91 (latest edition) and all local codes
and ordinances.
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 44131-5575
A 120 Volt, 60 Hz., AC only, 15-amp, fused electrical circuit is
required.
8" (20.0 cm) Round
2.5 ft
(0.8 m)
5.0 ft
(1.5 m)
Wall cap
6 ft (1.8 m)
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. 1-94, Canadian Electrical Code, Part 1 and
C22.2 No. 0-M91 (latest edition) and all local codes and
ordinances.
INSTALLATION INSTRUCTIONS
Prepare Location
It is recommended that the vent system be installed before
hood is installed.
Before making cutouts, make sure there is proper clearance
within the ceiling or wall for exhaust vent.
Check your ceiling height and the hood height maximum
before you select your hood.
1. Disconnect power.
2. Determine which venting method to use: roof, wall, or non-
vented.
3. Select a flat surface for assembling the range hood. Place
covering over that surface.
WARNING
Excessive Weight Hazard
Use two or more people to move and install
range hood.
Failure to do so can result in back or other injury.
4. Using 2 or more people, lift range hood onto covered surface.
Range Hood Mounting Screws Installation
5. Determine and mark the centerline on the wall where the
canopy hood will be installed.
6. Select a mounting height between a minimum of
24" (61.0 cm) for an electric cooking surface, a minimum of
27" (68.6 cm) for a gas cooking surface, and a suggested
maximum of 36" (91.4 cm) above the range to the bottom of
the hood and mark a reference line on the wall.
7. Tape template in place, aligning the template centerline and
bottom of template with hood bottom line and with the
centerline marked on the wall.
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