BF100S
Silent Bath Fan User’s Guide
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Item Stock Number(s): BF100S
READ AND SAVE THESE INSTRUCTIONS
Important Safety Instructions
Caution: For general ventilating use only. Do not use to exhaust hazardous or explosive
materials and vapors.
CAUTION: The equipment covered by these instructions should be installed and serviced
only by competent personnel utilizing proper safety practices and procedures. These
instructions are written for such personnel and are not intended as a substitute for adequate
training and experience in safe procedures for this type of equipment.
Warning: Do not use in kitchens.
h) NEVER place a switch where it can be reached from the tub or shower.
To ensure the best air and sound performance, it is recommended that the length of ducting
and the number of elbows be kept to a minimum, and that insulated hard ducting be used.
Larger duct sizes will reduce noise and airflow restriction.
Warning: Disconnect the power at service panel before beginning this installation.
Caution: To reduce the risk of fire and to properly exhaust air, be sure to duct air outside. Do
not vent exhaust air into spaces within walls or ceilings, or into attics, crawl spaces, or garages.
Before beginning this installation remove the fan’s
blower housing (which includes the motor, blade,
bracket and venturi) assembly by removing the screw
which secures the venturi housing to the fan housing
(Fig. 1). Place this assembly and the grill in the carton
until needed so they do not get damaged.
Acceptable for use over tub or shower when installed in a GFCI protected branch circuit.
Warning: To reduce the risk of fire or electric shock, do not use this fan with any solid-state
speed control device.
Warning: To reduce the risk of fire or electric shock or injury to persons, observe the following:
Fig. 1
a) Use this unit only in the manner intended by the manufacturer. If you have any questions,
please contact the manufacturer.
Mounting the Housing: New Construction
Using the Hanging Brackets (refer to Fig. 2)
b) Before servicing or cleaning unit, switchpower to 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.
1. Insert the hanging brackets in the slots provided
in the housing.
2. Remove the electrical cover (which holds the fan’s
receptacle) and place it somewhere handy. Select
the most convenient electrical knockout and remove
it, then locate the fan housing between the joists
so that the bottom of the fan housing is even with
the planned finished ceiling.
3. Use screws or nails (not provided) to secure the hanger bars to the ceiling joists.
c) Do not install this fan in a ceiling thermally insulated to a value greater than R-40
d) Installation work and electrical wiring must be done by qualified, competent, trained
person(s) in accordance with all applicable codes and standards using proper safety
practices, including fire-related construction.
e) 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 Agency (NFPA) and the American Society for Heating, Refrigeration, and
Air Conditioning Engineers (ASHRAE), and the local code authorities.
Fig. 2
Mounting the Housing: Existing Construction
1. Determine the desired location for the fan.
f) When cutting or drilling into a wall or ceiling, ALWAYS identify hidden electrical wiring
and other hidden utilities in advance, to avoid damage.
g) Ducted fans must always be vented to the outdoors.
2. Drill a small hole through the ceiling at the chosen location and stick the end of a coat
hanger through the hole into the attic to help locate the spot in the attic.
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