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