INST
ALLA
TION MANUAL
INST
ALLA
TION
13
DUCTED INSTALLATION ONLY
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.
9 ]
Remove 3¼” x 10” vertical, 3¼” x 10” horizontal (both are the rectangular
central
knockout plates, see hatched areas) or 7-inch round knockout plate as appropriate for
your ducting method (see
F
IGURES
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 KNOCKOUT
PLATE (
ALSO
REMOVE
3¼”
X
10”
VERTICAL
KNOCKOUT
PLATE
)
3¼”
X
10”
VERTICAL
KNOCKOUT
PLATE
3¼”
X
10”
HORIZONTAL
KNOCKOUT
PLATE
F
IGURE
1 A
7” ROUND
DUCT
PLATE
SCREWS
F
IGURE
3
3¼”
X
10”
DAMPER
ASSEMBLY
TOP/BACK
EDGE OF
HOOD
DAMPER
FLAP
PIVOT
SCREWS
F
IGURE
2 A
F
IGURE
2 B
F
IGURE
1 B
3¼”
X
10”
DAMPER
ASSEMBLY
BACK OF
HOOD
DAMPER
FLAP
PIVOT
SCREWS
10 ]
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
below) or 7” Round Duct Plate (if using 7-inch round duct,
F
IGURE
3
) over the knockout opening. When installed, the 3¼” x 10” damper assembly
must open as shown in
F
IGURE
2 B
.
