Installation Guide

Page 1
MODELS 350 • 350BK • 350BR • 355 • 355BK • 355BR
356 • 356BK • 356BR
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC 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 the service disconnecting means 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.
3. Installation work and electrical wiring must be done by a qualified
person(s) in accordance with all applicable codes and standards,
including fire-rated construction codes and standards.
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 manufac-
turer's guidelines and safety standards such as those published
by the National Fire Protection Association (NFPA), and the
American Society for Heating, Refrigeration and Air Condition-
ing Engineers (ASHRAE), and the local code authorities.
5. When cutting or drilling into wall or ceiling, do not damage
electrical wiring and other hidden utilities.
6. The wiring must be permanent. DO NOT USE AN EXTENSION
CORD! Use 14 GA. MINIMUM copper wire. Although the Powered
Attic Ventilator may be wired directly to power, we advise that
some type of shut off switch be installed in the line. Please see
the section on electrical wiring for suggested wiring diagrams
and instructions.
7. This unit must be grounded.
8. Do not use this unit with any solid state speed control device
(Models 356 only).
CAUTION
1. For general ventilating use only. Do not use to exhaust hazardous or
explosive materials and vapors.
2. To avoid motor bearing damage and noisy and/or unbalanced impellers,
keep drywall spray, construction dust, etc. off power unit.
3. This unit has an unguarded impeller. Do not use in locations readily
accessible to people or animals.
4. Fan is equipped with a thermostat which may start fan automatically. To
reduce risk of injury or electric shock while 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.
5. Home Ventilating Institute (HVI) recommends one square foot of open
air inlet per 300 cfm of fan capacity. The best location for these air intake
vents are under the eaves with direct access to the attic. Failure to provide
these intakes could cause natural-draft gas appliances to backdraft.
6. Your attic fan installation will create a screened opening into your attic
space. During a heavy rain storm there could be a light spray of rain into
this attic space. This is a normal condition with all attic ventilators and
will not cause any damage to the structure. We recommend that you do
not store any valuable articles directly under the fan opening in the roof.
During extreme rain and wind storms you may want to turn on your attic
ventilator to prevent excess moisture accumulation in your attic.
7. Records show, under ideal conditions, exposed galvanized steel can
remain rust free up to 100 years. For best protection, the exposed portion
of the roof sheet should be painted, especially in areas of unusually high
industrial air pollution. Follow paint manufacturer's instructions for good
adhesion.
8. This ventilator is intended for roof installation. The Broan Model 353 Gable
Mount Ventilator is available for side wall applications.
9. The dome may be painted with a high-quality paint. Follow the paint manu-
facturer's recommendations for PVC plastic or aluminum, as appropriate.
10. Please read specification label on product for further information and
requirements.
11. The wearing of safety glasses and gloves is recommended when installing,
maintaining or cleaning the unit to reduce the risk of injury that could be
caused by the presence of thin metal and/or high moving parts.
12. If the fan makes excessive noise or if there is unusual noise or smells of
smoke, disconnect power supply and contact customer service.
If this fan is to be used to ventilate a garage:
A. Use only in single family, residential garages
B. Install in a GFCI protected branch circuit
C. To help offset the risk posed by high concentrations of vapors from paints,
glues, solvents, and fuels, install fan at least 18 inches (0.5m) above the
floor
D. NEVER run a vehicle or use a fuel burning appliance inside of a garage.
Deadly levels of carbon monoxide can build up in the area. Using this
garage fan, or opening windows and doors, will NOT supply enough fresh
air to eliminate the danger.
E. Run regularly if exposed to salty air environments
F. Extra cleaning may be required due to possible dirty surroundings
ROOF-MOUNT
POWERED ATTIC VENTILATOR
READ AND SAVE THESE INSTRUCTIONS
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Slotted Screwdriver
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Drill
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1/4" Drill Bit
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Sabre Saw or eyhole Saw
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Hammer
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Ruler
TOOLS AND MATERIALS REQUIRED
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Pencil
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Utility Knife
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Pry Bar (to remover roofing nails)
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Roofing Cement
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Galvanized Roofing Nails (1¾" min.)
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Electrical Supplies (to comply with codes)