Contents [ hide
1 READ AND SAVE THESE
INSTRUCTIONS
1.1 TOOLS & MATERIALS REQUIRED
1.2 PREPARE THE VENTILATOR
1.3 INSTALL THE VENTILATOR
1.4 WIRE THE VENTILATOR
1.5 SERVICE PARTS
1.6 File Downloads
1.7 References
1.8 Related Manuals
READ AND SAVE THESE INSTRUCTIONS
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 the unit, switch power off at the 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 back-drafting. Follow the heating equipment manufacturer’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 Conditioning Engineers (ASHRAE), and the local code authorities.
5. When cutting or drilling into a 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.
CAUTION
1. For general ventilating use only. Do not use to exhaust hazardous or explosive materials or vapors.
2. To avoid motor bearing damage and noisy and/or unbalanced impellers, keep drywall spray, construction dust, etc. off
the power unit.
3. This unit has an unguarded impeller. Do not use in locations readily accessible to people or animals.
4. The fan is equipped with a thermostat which may start the fan automatically. To reduce the risk of injury or electric shock
while servicing and cleaning the unit, switch power off at the service panel and lock the 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 is under the eaves with direct access to the attic. Vents for attic sidewall installations
should be placed at the end of the house opposite the installed ventilator. Failure to provide these intakes could cause
natural-draft gas appliances to backdraft.
6. Your attic installation will create a screened opening into your attic space. During a heavy rainstorm, 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 gable.
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 the paint manufacturer’s instructions for good adhesion.
8. This ventilator is intended for Gable installation. The Broan Models 350, 355, 356 & 358 Roof Mount Ventilators are
available for roof mount applications.
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