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Roof Venting
Wall Venting
Non-vented
(recirculating)
.4
A. Roof cap
A. Wall cap
A. Deflector
B. 8" (20 cm) round
B. 8" (20 cm) round
B. 8" (20 cm)
vent
vent
round vent
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
8" (20 cm) round
45 ° elbow
2.5 ft
(0.8 m)
90 ° elbow
5.0 ft
(1.5 m)
Maximum equivalent vent length is 35 ft (10.7 m).
Example vent system
90° elbow
I_-_
6ft (1.8m)-_l
Wall cap
The following example
falls within the maximum
vent length of
35 ft (10.7 m).
1 - 90 ° elbow
1 - wall cap
8 ft (2.4 m) straight
Length of system
= 5.0 ft (1.5 m)
= 0.0 ft (0.0 m)
= 8.0 ft (2.4 m)
= 13.0 ft (3.9 m)
E
cQ
sts
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.
•
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 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.