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E EXHAUST DUCT
The hood exhaust has been designed to match with a standard 3
If a round duct is desired, a rectangular-to-round transition adaptor must be used.
MAXIMUM DUCT LENGTH
For satisfactory air movement (CFM) the total duct length should not exceed 130 feet (39.6 m) of 3
(8.3 cm X 25.4 cm) rectangular duct.
This 130 feet maximum can be comprised entirely of straight duct or the total amount of straight duct used plus
the equivalent amount in feet of elbows, transitions, wall or roof caps, etc. which were used. The drawings
below show approximate measurements for typical round duct elements [with a 6" (15.2 cm) diameter] and
rectangular duct elements 3
(3 m), and a transition adaptor, equivalent to 5 ft. (1.5 m), can be used with a maximum of 115 feet of straight
duct.
Transition Adaptor - 5 ft. (1.5 m)
90° Elbow - 25 ft. (7.8 m)
Note: Round duct elements with a 6" diameter are recommended.
F
PREPARATION OF TOP CABINET AND WALL
It is recommended that the bracket assembly be mounted to a flush wall of 2" X 4" (5 cm X 10 cm) stud and
/
" (1 cm) minimum thickness drywall construction.
3
8
1. To prepare the bottom surface of the top cabinet and the wall, holes must be drilled or cut into these surfaces.
A template is provided for preparing these holes. Read the instructions on the template before taping it to the
bottom of the cabinet and the wall.
2. Wall and Cabinet preparation
2-1. Confirm oven fits into the bottom of the upper cabinet frame and the wall. Draw a vertical center line on
wall and a center line of the cabinet. (Fig. F-1)
2-2. Locate wall studs by tapping or test drilling and mark vertical center line along the wall studs on wall
template. If there are no any wall studs in the opening area, DO NOT install the product. Consult your
builder.
/
"X10" (8.3 cm X 25.4 cm). For example, a 90 degree elbow, equivalent to 10 ft.
1
4
45° Elbow - 5 ft. (1.5 m)
Template
/
"X10" (8.3 cm X 25.4 cm) rectangular duct.
1
4
Wall Cap - 40 ft. (12 m)
90° Elbow - 10 ft. (3 m)
Wall Template
Center line
Fig. F-1
Page 5
/
"X10"
1
4
Roof Cap - 24 ft. (7.3 m)
45° Elbow - 5 ft. (1.5 m)
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