Broan 350 User Manual

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 and 358 only).

1.  For general ventilating use only. Do not use to exhaust hazard-

ous 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 automati-

cally. 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 ac-

cess 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 condi-

tion with all attic ventilators and will not cause any damage to 

the structure. We recommend that you do not store any valu-

able 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 manufacturer's recommendations for PVC plastic or 

aluminum, as appropriate.

10. Please read specification label on product for further information 

and requirements.

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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 Keyhole Saw

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Hammer

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Ruler

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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)