INST
ALLA
TION MANUAL
INST
ALLA
TION
8
Recommended Tools and Accessories
for Installation
• Measuring
tape
•
Phillips screwdriver no. 2
•
Flat blade screwdriver (to open knockout holes)
•
Drill, 1/8” drill bit and 1½” hole saw (to mark holes for ducting and cut electrical access hole)
•
7/64” drill bit (to drill holes for EZ1 brackets mounting screws, not for BKSA1 Series)
•
Wood shims (2) and wood screws (4) (required for standard installation to framed cabinet)
•
Saw (to cut holes for ducted application)
•
Sheet metal shears (ducted installation only, for duct adjustment)
•
Pliers (ducted installation only, for duct adjustment)
•
Metal foil duct tape (for ducted applications)
•
Scissors (to cut metal foil duct tape)
• Pencil
• Wire
stripper
•
Strain relief, 1/2” diameter (to secure house wiring cable to the hood)
Install Ductwork (Ducted Installations Only)
S
OFFIT
18"
MIN
- 24"
MAX
ABOVE
COOKING
SURFACE
C
ABINET
3¼"
X
10"
DUCT
(F
OR
HORIZONTAL
DISCHARGE
)
W
ALL
CAP
R
OOF
CAP
3¼"
X
10"
OR
7"
ROUND
DUCT
(F
OR
VERTICAL
DISCHARGE
)
H
OUSE
WIRING
(T
OP
OR
BACK
OF
HOOD
)
H
OOD
NOTE: Distances over 24” are at the installer and user discretion.
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 outdoors.
3 ]
The ducting from this fan to the outside of the building has a strong effect on the air flow,
noise and energy use of the fan. Use the shortest, straightest duct routing possible for best
performance, and avoid installing the fan with smaller ducts than recommended. Insulation
around the ducts can reduce energy loss and inhibit mold growth. Fans installed with existing
ducts may not achieve their rated airflow. Refer to the table on next page to help you plan the
most efficient installation.
4 ]
Install wall cap or roof cap (sold separately); ensure there is no leak in house insulation.
Connect metal ductwork to cap and work back towards the hood location. Use 2” metal foil
duct tape to seal the joints between ductwork sections.
For ADA compliance installation guidelines, please visit www.broan-nutone.com
