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9
DUCTED INSTALLATIONS ONLY
7. Remove 3¼” x 10” vertical, 3¼” x 10” horizontal, or 7-inch round knockout plate as appropriate for your ducting
method (see FIGURES 1 A and 1 B).
NOTE: To accommodate off -center ductwork, the 7” round duct plate can be installed up to 1/2” on either side of
the hood center.
7” ROUND
DUCT
PLATE
SCREWS
FIGURE 3
3¼” X 10”
DAMPER
ASSEMBLY
SCREWS
FIGURE 2 A
TOP/BACK
EDGE OF
HOOD
DAMPER
FLAP
PIVOT
FIGURE 2 B
3¼” X 10”
DAMPER
ASSEMBLY
BACK OF
HOOD
DAMPER
FLAP
PIVOT
SCREWS
7” ROUND
KNOCKOUT PLATE
(ALSO REMOVE VERTICAL
KNOCKOUT PLATE)
3¼” X 10”
VERTICAL
KNOCKOUT
PLATE
3¼” X 10”
HORIZONTAL
KNOCKOUT
PLATE
FIGURE 1 A FIGURE 1 B
8. Attach 3¼” x 10” Damper Assembly on top OR back of hood (if using 3¼” x 10” duct; shaded part in F
IGURE 2 A)
or 7” Round Duct Plate (if using 7-inch round duct, FIGURE 3) over the knockout opening. When installed, the 3¼” x
10” damper assembly must open as shown in F
IGURE 2 B.
TIP: Insert a small length of duct over the 3¼” x 10” damper assembly (for rectangular ducting) or 7” round (for round
ducting) and seal the joint using aluminum foil duct tape to ease connection with the house ductwork.
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