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INSTALLATION INSTRUCTIONS
Power Attic Ventilator
MODEL: RF-49 Series
IMPORTANT SAFETY INSTRUCTIONS
WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
A. Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer.
B. 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:
For general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors.
CAUTION:
This unit has an unguarded impeller. Do not use in locations readily accessible to people or animals.
WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
A. Installation work and electrical wiring must be done by qualified person(s) in accordance with all applicable codes and standards, including
B. 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 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.
C. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.
D. Ducted fans must always be vented to the outdoors.
E. If this unit is to be installed over a tub or shower, it must be marked as appropriate for the application.
F. NEVER place a switch where it can be reached from a tub or shower.
IMPORTANT: For every 300 CFM of fan performance, a minimum of one square foot of inlet space in attic or crawl space is necessary for proper operation. Inlet areas should be located as far from fan location as possible, such as in the eave or side walls.
MOUNTING THE FAN
IMPORTANT: If the fan will be mounted on a flat roof, make a curb on which to mount the fan; the fan must be above the level of the roof’s water line.
1.Determine the location of the fan. Place the unit on top of the shingles as close to the center of the roof as possible and near the ridgeline. For best appearance, the unit should be mounted on the back side of the house and should be visible only on one side of the roof. This will require that the unit be moved down slightly from the ridgeline.
2.When the desired location is established, locate a center line between two rafters and drill a small hole through the roof from the inside. This hole will be used as a center for the following operations.
3.Draw a reference square on 253⁄8" by 253⁄8" on the roof using the drilled hole as a center. Within the square, draw a 173⁄8" diameter circle. Cut and remove the shingles, nails and felt within this circle. Draw and cut a 147⁄8" diameter hole through the decking.
4.With the lettering of the unit parallel to the ridgeline, slide the top flange of the unit up under the shingles (some roofing nails may need to be removed). Position the unit on the reference square previously drawn to align the exhaust openings. With the unit located, apply a generous amount of roofing compound between the flange and shingles approximately 1" in from perimeter of flange. Secure with galvanized roofing nails. Follow the nailing pattern shown.
MOUNTING THE THERMOSTAT/
OUTLET BOX
IMPORTANT: Do not mount outlet box near heat source.
1.Mount the outlet box to a nearby rafter so that the outlet box is higher that the fan motor.
BLACK LEAD
FROM MOTORBLACK LEAD FROM HOUSE SUPPLY
HOUSE SUPPLY
WIRING
SUPPLY
GROUND
FAN MOTOR
WIRING
| WHITE LEADS | |
FLEXIBLE CONDUIT | FROM MOTOR | |
AND HOUSE | ||
SERVES AS GROUND | ||
SUPPLY | ||
|
