Broan 356NDK User Manual
EXTERIOR & IN-LINE BLOWER MOUNTING PLATE
KIT
READ AND SAVE THESE INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRICAL
SHOCK, OR INJURY TO PERSONS, OBSERVE
THE FOLLOWING:
1. Use this unit only in the manner intended by the
manufacturer. If you have questions, contact the
manufacturer at the address or telephone number listed in the warranty.
2. Before servicing or cleaning unit, switch power off
at service panel and lock service panel to prevent
power from being switched on accidentally. When
the service disconnecting means cannot be
locked, securely fasten a prominent warning device, such as a tag, to the service panel.
CAUTION
1. For general ventilating use only. Do not use to
exhaust hazardous or explosive material and
vapors.
2. To avoid motor bearing damage and noisy and/or
unbalanced impellers, keep drywall spray, construction dust, etc. off power unit.
3. Your hood motor has a thermal overload which
will automatically shut off the motor if it becomes
overheated. The motor will restart when it cools
down. If the motor continues to shut off and
restart, have the hood serviced.
4. Please read specification label on product for
further information and requirements.
3. Installation work and electrical wiring must be
done by a qualified person(s) in accordance with
all applicable codes and standards, including firerated construction codes and standards.
10" ROUND ELBOW
10" ROUND DUCT
4. Sufficient air is needed for proper combustion and
exhausting of gases through the flue (chimney) of
fuel burning equipment to prevent backdrafting.
Follow the heating equipment manufacturer's
guideline and safety standards such as those
published by the National Fire Protection Association (NFPA), and the American Society for
Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), and the local code authorities.
5. When cutting or drilling into wall, or ceiling, do not
damage electrical wiring or other hidden utilities.
6. Ducted fans must always be vented to the outdoors.
7. To reduce risk of fire, use only metal ductwork.
TYPICAL WALL MOUNTED INSTALLATION
(Vertical discharge - elbow to horizontal)
WALL HOOD
CANOPY
(island canopy
available)
24" or 27"
DUCT OPENING
SOFFIT
ROUGH-IN
PLATE
COVER PLATE
18"
MODEL
335
EXTERIOR
BLOWER
12" MIN.
ABOVE ANY
OBSTRUCTION
8. This unit must be grounded.
MODEL 335
EXTERIOR BLOWER
10" ROUND
DUCT
SOFFIT
WALL HOOD
CANOPY
(island canopy
available)
TYPICAL ROOF MOUNTED INSTALLATION
DUCT
OPENING
COVER PLATE
24" or 27"
ROUGH-IN
18"
PLATE
TYPICAL WALL MOUNTED INSTALLATION
(Vertical discharge)
WALL HOOD
CANOPY
(island canopy
available)
24" or 27"
(Horizontal discharge)
SOFFIT
18"
ROUGH-IN
PLATE
10" ROUND DUCT
OPENING
MODEL 335
EXTERIOR
BLOWER
12" MIN.
ABOVE ANY
OBSTRUCTION
DUCT
COVER
PLATE
NOTE: Horizontal discharge requires relocation of the duct opening cover plate. See hood manual
for instructions.
4. Remove wiring box cover. Remove
knockouts from the wiring box. Feed
6" of power cable through openings
and attach cables to wiring box with
appropriate connectors.
5. Align 10" round duct with collar on
mounting plate. Attach plate to studs
at top of hood with 4 nuts provided.
6. Connect wiring following the diagram
below. Connect green wires together,
then beneath the green ground screw.
Connect white wires together. To function properly, connect black wires only
as shown.
TYPICAL IN-LINE BLOWER INSTALLATION
INSTALLATION
1. Run 10" round ductwork, from exte-
rior or in-line blower to the installation
location. For best performance, use
the straightest possible duct run and
the fewest number of elbows. Tape all
joints.
These ducting accessories are available from you dealer:
Model 410
•
- 10" round duct in 24"
sections
•
Model 421
- 10" round in-line
damper
2. Run 120 VAC electrical power cables
from service panel and exterior or inline blower to installation location.
3. Mount hood to wall following directions packed with hood.
WIRING DIAGRAM
TYPICAL INSTALLATION
10" Round
Duct
Studs
Power
Cables
Wiring
Box
Cover
Nuts
Refer to your hood instructions for warranty and service information.
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