Air King BFQF50, BFQF70 Operating Manual

IMPORTANT INSTRUCTIONS -

OPERATING MANUAL

Models: BFQF50, BFQF70

Exhaust Fan

READ AND SAVE THESE INSTRUCTIONS

READ CAREFULLY BEFORE ATTEMPTING TO ASSEMBLE, INSTALL, OPERATE OR MAINTAIN THE PRODUCT DESCRIBED.

PROTECT YOURSELF AND OTHERS BY OBSERVING ALL SAFETY INFORMATION. FAILURE TO COMPLY WITH

INSTRUCTIONS COULD RESULT IN PERSONAL INJURY AND/OR PROPERTY DAMAGE!

RETAIN INSTRUCTIONS FOR FUTURE REFERENCE.

GENERAL SAFETY INFORMATION

When using electrical appliances, basic precautions

should always be followed to reduce the risk of fire,

electric shock and injury to person, including the following:

WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK

AND INJURY TO PERSON, 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 the 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.

WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK

AND INJURY TO PERSON, OBSERVE THE FOLLOWING:

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 and be connected to a GFCI

(Ground Fault Circuit Interrupter) - protected branch circuit.
f) This unit must be grounded.
g) To avoid motor bearing damage and noisy and/or unbalanced

impellers, keep drywall spray, construction dust, etc. off power unit.
h) NEVER place a switch where it can be reached from a tub or

shower.
i) Suitable for use with electronic speed control device.

a) Installation work and electrical wiring must be done by qualified

person(s) in accordance with all applicable codes and standards,
including fire-related construction.

j) Do not install into ceilings thermally insulated to a value greater

than R40.

CAUTION: FOR GENERAL VENTILATING USE ONLY. DO NOT

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.

USE TO EXHAUST HAZARDOUS OR EXPLOSIVE MATERIALS AND
VAPORS.

WARNING: DO NOT USE IN KITCHENS.

k) Read all instructions before installing or using exhaust fan.

SAVE THESE INSTRUCTIONS

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INSTALLATION INSTRUCTIONS
CAUTION:

PANEL BEFORE STARTING INSTALLATION.

MAKE SURE POWER IS SWITCHED OFF AT SERVICE

SECTION 1

Preparing the Exhaust Fan

1. Unpack fan from the carton and confirm that all pieces are present. In
addition to the exhaust fan you should have:

1 - Grill with Light Lens
1 - Damper Assembly (attached)
1 - Mounting Bracket
1 - Fluorescent Lamp
1 - Hardware Bag
1 - Electrical Connector
3 - Wire Nuts
1 - Instruction/Safety Sheet

2. Remove the wire compartment cover and store in the carton until
needed so it does not get damaged or lost (Figure 1).

Figure 4

SECTION 3

Existing Construction

1. Position housing against the joist or stud and trace an outline of the
housing onto the ceiling/wall material. Set housing aside and cut
opening, being careful not to cut or damage any electrical or other
hidden utilities (Figure 5).

Figure 1

3. Choose the location for your fan. 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 restrictions.

4. Select the most convenient electrical
knockout and remove using a straight­blade screw driver (Figure 2).

SECTION 2

New Construction

1. Using the gauge on the mounting bracket, line up the bracket on the
joist so the bottom of the fan will be flush with the finished ceiling.
Nail or screw the bracket in place securely (Figure 3).

Figure 2

Figure 5

2. Line up the bracket on the joist so the bottom of the fan will be flush
with the finished ceiling. Nail or screw the snap-in bracket in place
securely (Figure 3).

3. Snap the fan body into the bracket (Figure 4). The fan can be
snapped into position with the duct collar facing to the left or the right
depending which is most convenient.

SECTION 4

Ducting

CAUTION: ALL DUCTING MUST COMPLY WITH LOCAL AND

NATIONAL BUILDING CODES.

1. Connect the ducting to the fan’s duct collar (Figure 6). Secure in place
using tape or screw clamp. Always duct the fan to the outside through
a wall or roof cap.

Figure 3

2. Snap the fan body into the bracket (Figure 4). The fan can be

snapped into position with the duct collar facing to the left or the right
depending which is most convenient.

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Figure 6

SECTION 5

Wiring

SECTION 6

Completing the Installation

CAUTION: MAKE SURE POWER IS SWITCHED OFF AT SERVICE

PANEL BEFORE STARTING INSTALLATION.

CAUTION:ALL ELECTRICAL CONNECTIONS MUST BE MADE

IN ACCORDANCE WITH LOCAL CODES, ORDINANCES, OR NATIONAL
ELECTRICAL CODE. IF YOU ARE UNFAMILIAR WITH METHODS OF
INSTALLING ELECTRICAL WIRING, SECURE THE SERVICES OF A
QUALIFIED ELECTRICIAN.

1. Wiring Fan/Light Independently: Run wiring from an approved wall

switch carrying the appropriate rating. One neutral (white), one ground
(green or bare copper), and two hot (black lead connected to the switch).
Secure the electrical wires to the housing with an approved electrical
connector. Make sure you leave enough wiring in the box to make the
connection to the fan’s receptacle.

1a. From where you have access to inside the fan’s junction box, connect

the one white wire from the house to both the white wire from the
fan’s light receptacle and the white wire from the fan’s exhaust
receptacle. Connect the first black wire from the wall switch to the
black wire from the fan’s light receptacle. Connect the second black
wire from the house to the fan’s exhaust receptacle. Connect
the ground wire from the house to the green wire from the fan’s
receptacle (Figure 7). Use approved methods for all connections.

Supply

from

house

Ground
(Green or

Neutral
(White)

Hot (Black)

Bare)

1. Reinstall the fan’s wire compartment cover. Rotate the blower wheel
by hand to ensure it spins freely. Plug the fan’s quick connect motor
cord into the receptacle. This cord will only fit one way into the
receptacle (Figure 9).

Figure 9

2. Install the grill/lens/light reflector, by first removing the lens from
the grill (there are two tabs on either side that hold the lens in
place). Then remove the acorn nut and the lock washer which
are installed on the reflector mounting bolt in the fan housing. Adjust
the height of the reflector mounting bolt so that the grill will be tight
up against the finished ceiling and less than 1/4” of the reflector
mounting bolt protrudes through the reflector. Secure the reflector
bolt’s position by tightening the factory installed nut against the
motor clip (Figure 10).

Motor Clip

Nut

Mounting Bolt

Figure 7

2. Wiring Fan/Light together: Run wiring from an approved wall switch

carrying the appropriate rating. One neutral (white), one ground (green
or bare copper), and one hot (black lead connected to the switch).
Secure the electrical wires to the housing with an approved electrical
connector. Make sure you leave enough wiring in the box to make the
connection to the fan’s receptacle.

2a. From where you have access to inside the fan’s junction box, connect

the one white wire from the house to both the white wire from the
fan’s light receptacle and the white wire from the fan’s exhaust
receptacle. Connect the black wire from the wall switch to both the
black wire from the fan’s light receptacle and the black wire from the
fan’s exhaust receptacle. Connect the ground wire from the house to
the green wire from the fan’s receptacle (Figure 8). Use approved
methods for all connections.

Hot (Black)

Supply

from

house

Neutral (White)

Ground
(Green or

Hot (Black)

Bare)

Reflector

Grill

Flange Nut

Lens

Figure 10

Tabs

CAUTION: FAILURE TO SECURE THE REFLECTOR BOLT MAY

RESULT IN A RATTLING OR HUMMING NOISE.

3. After the reflector bolt is secure, raise the grill/reflector up into position
and plug the reflector into the appropriate receptacle. Secure the
assembly to the reflector bolt using the acorn nut and lock washer.
Install the included 26 watt fluorescent lamp into the lamp holder by
lining up the pins on the lamp base to the socket of the lamp holder and
pressing towards the lamp holder until the lamp snaps into place and is
firmly seated in the lamp holder (Figure 11).

Figure 8

Hot (Black)

Figure 11

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4. Reinstall the lens into the grill (Figure 11).

5. Restore power and test your installation.

SECTION 7

Use and Care

CAUTION: MAKE SURE POWER IS SWITCHED OFF AT SERVICE

PANEL BEFORE SERVICING THE UNIT.

CAUTION: ALLOW BULB TO COOL BEFORE REPLACING.

Changing the Lamp

Remove the light lens by squeezing at the tabs and pulling down (Figure

12). Remove lamp by gently twisting the lamp base counterclockwise while

applying outward pressure. Installation is the reverse of removal. Replace
with Air King model 26SBL or a compatible GU24 26 watt self ballasted lamp.

Tabs

Cleaning the Grill

Remove grill and use a mild detergent, such as dishwashing liquid, and
dry with a soft cloth. NEVER USE ANY ABRASIVE PADS OR SCOURING
POWDERS. Completely dry grill before reinstalling. Refer to instructions in
Section 6 Finishing the Installation, to reinstall grill.

Cleaning the Fan Assembly

Unplug the motor cord from receptacle. Wipe all parts with a dry cloth or
gently vacuum the fan. NEVER IMMERSE ELECTRICAL PARTS IN WATER.
Plug the motor cord back in and restore power.

Figure 12

Troubleshooting Guide

Trouble Probable Cause Suggested Remedy

1. Fan does not operate when the switch is on. 1a. A fuse may be blown or a circuit tripped. 1a. Replace fuse or reset circuit breaker.
1b. Connector plug from motor is not plugged in. 1b. Turn off power to unit. Remove Grill and plug motor into receptacle

in housing. Restore power to unit.
1c. Wiring is not connected properly. 1c. Turn off power to unit. Check that all wires are connected.
1d Motor has stopped operating. 1d. Replace motor.

2. Fan is operating, but air moves slower than normal. 2. Obstruction in the exhaust ducting. 2. Check for any obstructions in the ducting. The most common are bird
nests in the roof cap or wall cap where the fan exhausts to the outside.

3. Fan is operating louder than normal 3a. Motor is loose. 3a. Turn off power to unit. Remove grill and check that all screws are fully
tightened. Restore power to unit.

3b. Fan blade is hitting housing of unit. 3b. Call your dealer for service.

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