Install The Ductwork; Install Support System - Broan best IS2304SS Manual

INSTALL THE DUCTWORK

Ducted configuration only.
NOTE: 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.
4. Install a roof or wall cap. Connect 6" round
metal ductwork to cap and work back to-
wards hood location. Use duct tape to seal
the joints between ductwork sections.

INSTALL SUPPORT SYSTEM

1. At hood location, install 2 X 4 cross fram-
ing between ceiling joists using dimensions
shown.
2. Finish the ceiling surface. Be sure to mark
the location of the ceiling joists and cross
framing.
ROOF CAP
DECORATIVE
FLUE
HOOD
24" TO 30" ABOVE
COOKING SURFACE
(See "Adjust Support
Frame" section for
mounting restrictions.)
DRYWALL
7"
WASHERS
6.4mm
MOUNTING
SCREWS
6x70mm
SUPPORT FRAME
- 7 -
6" ROUND
DUCT
6" ROUND
ELBOW
EAVE
VENT
CROSS FRAMING
CEILING
JOISTS
SUPPORT
FRAME
TOP VIEW OF
7"
7"