Broan E54000 - Manual (Page 8)

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INSTALL THE DUCTWORK
DUCTED HOODS ONLY
CAUTION: To reduce the risk of fire,
use only metal ductwork.
1. Decide where the ductwork will run
between the hood and the outside.
2. A straight, short duct run will allow the
hood to perform most efficiently.
3. Long duct runs, elbows, and transitions
will reduce the performance of the hood.
Use as few of them as possible. Larger
ducting may be required for best
performance with longer duct runs.
4. Install a roof or wall cap. Connect round
metal ductwork to cap and work back to-
wards hood location. Use duct tape to
seal the joints between ductwork sec-
tions.
INSTALL SUPPORT SYSTEM
1. At hood location, install 2 X 4 cross
framing between ceiling joists using
dimensions shown.
2. Finish the ceiling surface. Be sure to mark
the location of the ceiling joists and cross
framing.
3. Secure the support frame bracket to joists
and cross framing with four lag bolts
provided (6x70mm) and four washers
(6.4mm). Make sure screws are driven into
center of joists and framing for maximum
strength. Be careful, because the position
of the bracket determines the final position
of the hood: the side with the slot B
corresponds to the controls side. Fig. 2.
FIG. 5
HOOD
ROUND
ELBOW
6”
ROUND
DUCT
ROOF CAP
D E C O R A -
T I V E
F L U E
EAVE
VENT
DRYWALL
8 1 /
16
”
CROSS FRAMING
CEILING
JOISTS
LAG BOLTS
(6x70mm)
WASHERS
(Ø6.4mm)
SLOT B
FRONT
FIG. 6
TOP VIEW OF SUPPORT FRAME
8 1 /
16
”
5 15 /
16
”
FIG. 7
24” to 30” ABOVE
COOKING SURFACE
(See “Prepare Support
Frame” section for
mounting restriction)
3 15 /
16
”
3”