BROAN 353 Gable-Mount Powered Attic Ventilator Instruction Manual

GABLE-MOUNT POWERED ATTIC VENTILATOR
MODEL 353
MODEL 35316

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.
9. Please read the specification label on the product for further information and requirements.
10. 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.
11. If the fan makes excessive noise or if there is unusual noise or smells of smoke, disconnect the power supply and contact customer service.

If this fan is to be used to ventilate a garage:

•  Use only in single-family, residential garages
• Install in a GFCI protected branch circuit
• 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
• 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.
• Run regularly if exposed to salty air environments
• Extra cleaning may be required due to possible dirty surroundings.

TOOLS & MATERIALS REQUIRED

(to comply with codes)
¨ Ruler| ¨ Nails

PREPARE THE VENTILATOR

1. Unpack the ventilator and find:
   1 – power unit with wiring box
   4 – angle brackets
   8 – sheet metal screws

2. Fasten the four (4) angle mounting brackets to the housing using the eight (8) sheet metal screws provided. Position the bracket flush with the edge of the housing band. A close fit between the ventilator and louver will minimize air recirculation.

INSTALL THE VENTILATOR

The ventilator is designed to mount behind existing louvers. Find the type of louver you have in the examples below. If no louver exists, one must be installed. Louver should be mounted in the center of the upper portion of the gable as high as possible.  For maximum efficiency, the area of the louver should be greater than the outlet area of the ventilator.

There is some loss in fan output because the louver blocks some of the airflows. Metal louvers have more open areas than wood louvers and usually allow more airflow.

When installing the ventilator behind louvers, you should seal off any louver area not covered by the ventilator housing band to prevent air leakage and recirculation. We suggest you mount the ventilator on a piece of plywood for the best sealing. Allow at least one square foot of air intake area for every 300 CFM of ventilator capacity.

CAUTION! When installing louvers or shutters, do not remove any existing structural members without providing alternate support members.

The ventilator can be mounted flush to a rectangular type louver by fastening through the mounting brackets to the frame of the louver.

On a wide louver, the brackets can first be fastened to the backside of two boards of the appropriate length and these boards can then be fastened to the frame.

With a narrow louver mounted between studs on 16” centers, two of the brackets can first be mounted to the backside of boards and the boards and other brackets nailed to the studs.

The ventilator can also be mounted off-center in an odd-shaped louver.
On large triangular louvers, mount to the frame or nail boards to the frame to provide a mounting surface for the ventilator. For the most effective installation, enclose the louver area not covered by the fan, with plywood or similar material.

Louvers that are smaller than the ventilator outlet will restrict air delivery. When this condition exists, a chamber should be built to properly direct the air through the louvers. A typical example of the suggested construction is shown.
An automatic shutter, Model 433, may also be installed to provide the necessary outlet for the fan. Installation instructions are provided with the Model 433 shutter.

WIRE THE VENTILATOR

1. Remove the thermostat wiring box cover plate. Bring the power cable at least 6” into the thermostat wiring box. Fasten to box with the appropriate connector.
2. For a standard installation, connect the two leads in the thermostat wiring box to the two power leads. Attach ground wire from the power cable to the green screw in the box.
   
   This diagram shows how to bypass the thermostat to turn the ventilator on or off manually.
   

This diagram shows how to wire a humidistat.

3. Replace the metal cover plate over the thermostat wiring box and fasten securely.
4. The thermostat setting determines the temperature at which the ventilator turns “on”. The ventilator automatically turns off when the attic temperature is 10 O F lower than the thermostat. If you want the ventilator to operate at a different temperature, insert a screwdriver into the slot and turn the indicator to the desired temperature.
   The ventilator will now turn “ON” at this temperature and “OFF” 10 0F lower.

SERVICE PARTS

Models 353 & 35316

1
2
3
4
5
6
7
8
9
10
11
12
1314
15   16     17    **18| 97006971 97009316  97015764 98005039 98006879 93150458

98008298  99170254

99260465  99200202  99260477  99170245  98009757  99150471

99030144 97005329  98006877  990717246 990726384

99250948

| Fan Blade w/Set Screw
Motor-353 Motor with Capacitor-35316
Housing  Mounting Brackets (4 Required) Housing Band  Assembly  #10B-16 x 3/8 Sheet Metal Screw  (8 Required) Motor  Mount Band (3 Required) Screw, 5/16-18 x 3/4  Hex Head   Machine  Screw (3 Required) Nut, 5/16-18 Hex (3 Required) Screw, 1/4 -20 x  1/2 Hex Head (3 Required) Whiz Locknut, 1/4-20 Hex (3 Required) #8B-18 x  3/8 Sheet Metal Screw (3 Req.) Wiring Box Green  Ground Screw #10-32 x 1/2 Hex      Washer Head
AdjustableThermostat Lead Wire Assembly Wiring Box CoverLabel-35316
Label-353
Washer (3 Required)

*Standard Hardware. May be purchased locally.
May be removed when serviced.
BROAN-NUTONE ONE YEAR LIMITED WARRANTY**
Broan-NuTone warrants to the original consumer purchaser of its products that such products will be free from defects in materials or workmanship for a period of one year from the date of original purchase. THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

During this one-year period, Broan-NuTone will, at its option, repair or replace, without charge, any product or part which is found to be defective under normal use and service.

THIS WARRANTY DOES NOT EXTEND TO FLUORESCENT LAMP STARTERS, TUBES, HALOGEN AND INCANDESCENT BULBS, FUSES, FILTERS, DUCTS, ROOF CAPS, WALL CAPS, AND OTHER ACCESSORIES FOR  DUCTING. This warranty does not cover (a) normal maintenance and service or (b) any products or parts which have been subject to misuse, negligence, accident, improper maintenance or repair (other than by Broan- NuTone), faulty installation or installation contrary to recommended installation instructions.

The duration of any implied warranty is limited to the one-year period as specified for the express warranty. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

BROAN-NUTONE’S OBLIGATION TO REPAIR OR REPLACE, AT BROAN-NUTONE’S OPTION, SHALL BE THE  PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY. BROAN-NUTONE SHALL NOT BE  LIABLE FOR INCIDENTAL, CONSEQUENTIAL, OR SPECIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH PRODUCT USE OR PERFORMANCE. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. This warranty supersedes all prior warranties. To qualify for warranty service, you must (a) notify Broan-NuTone at the address or telephone number below, (b) give the model number and part identification and (c) describe the nature of any defect in the product or part.  At the time of requesting warranty service, you must present evidence of the original purchase date.
Broan-NuTone LLC, 926 W. State Street,
Hartford, Wisconsin 53027 www.broan-nutone.com 800-558-1711

References

• Broan-NuTone | Better Air. Better Life.

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