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Broan QML Series Instructions Manual page 3

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INSTALL DUCTWORK
(D
UCTED INSTALLATIONS ONLY
R
OOF CAP
S
OFFIT
C
ABINET
H
OOD
18" - 24"
ABOVE
COOKING SURFACE
1
Determine whether hood will discharge vertically
(3¼" x 10" or 7" Round), or horizontally (3¼" x 10" only).
2
Decide where the ductwork will run between the hood
and the outside.
3
Choose a straight, short duct run to allow the hood to
perform most efficiently. Long duct runs, elbows and
transitions will reduce the performance of the hood. Use
as few of them as possible. Larger ductwork may be
required for best performance with longer duct runs.
4
Install wall cap or roof cap. Connect metal ductwork to cap
and work back towards the hood location. Use metal foil
duct tape to seal the joints between ductwork sections.
)
3¼"
10"
X
OR
7"
ROUND DUCT
(F
OR VERTICAL
)
DISCHARGE
H
OUSE WIRING
(T
B
OP OR
ACK OF HOOD
W
ALL CAP
3¼"
10"
X
DUCT
(F
OR HORIZONTAL DISCHARGE
PREPARE HOOD LOCATION
5
Use the proper diagram below for placement of ductwork
and electrical cutout in cabinet or wall. For a non-ducted
installation, DO NOT cut a duct access hole.
HOOD MOUNTING SCREWS (5)
)
WOOD SHIMS
(
RECESSED
)
CABINETS ONLY
WOOD SHIMS
(
RECESSED
CABINETS ONLY
MOUNTING
SCREWS (5)
HOOD MOUNTING SCREWS (5)
13
WOOD SHIMS
(
RECESSED
CABINETS ONLY
Note the extra wood shim and mounting screw near the
*
cabinet front, on the cabinet center line.
6
Install 4 Hood Mounting Screws into shims/cabinet
according to proper diagram above. Do not tighten
completely. Do not install middle screw until Step 20.
15
13
"
13
16
CABINET FRONT
CABINET
*
BOTTOM
7½"
5¼"
5¼"
VERTICAL DUCT
5"
ACCESS HOLE
1¼"
CENTER
-
BOTTOM
LINE
)
-
BOTTOM
)
CABINET FRONT
*
3¾"
HORIZONTAL DUCT
ACCESS HOLE
CABINET
BOTTOM
5¼"
5¼"
13
15
"
16
HOOD
CENTER
LINE
15
"
13
15
"
16
16
8" DIA.
*
HOLE
7½"
7-IN. ROUND
7-IN. ROUND
7-IN. ROUND
DUCT
DUCT
DUCT
ACCESS
ACCESS
ACCESS
5"
HOLE
HOLE
HOLE
-
BOTTOM
)
QML SERIES
Page 3
3¼" X 10"
VERTICAL DUCTING
15
"
16
10½"
9½"
2"
1½"
ELECTRICAL
ACCESS HOLE
(
)
IN CABINET BOTTOM
3¼" X 10"
HORIZONTAL DUCTING
3/4"
1/8"
7
/
"
1
2
13
15
"
16
ELECTRICAL
ACCESS HOLE
(
)
IN WALL
7-IN. ROUND
DUCTING
10½"
9½"
2⅛"
1½"
ELECTRICAL
ACCESS HOLE
(
)
IN CABINET BOTTOM

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