Air King BFQ75, BFQ90, BFQ110, BFQ175, BFQ140 User Manual

IMPORTANT INSTRUCTIONS -

OPERATING MANUAL

Models: BFQ50, BFQ70, BFQ75, BFQ90,

BFQ110, BFQ140, BFQ175

Exhaust Fan

READ AND SAVE THESE INSTRUCTIONS

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

1. Read all instructions before installing or using exhaust fan.

2. Use this unit only in the manner intended by the manufacturer.
If you have questions, contact the manufacturer.

3. 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.

4. Installation work and electrical wiring must be done by
qualified person(s) in accordance with all applicable codes
and standards, including fire-related construction.

5. 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.

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:

6. When cutting or drilling into wall or ceiling, do not damage
electrical wiring and other hidden utilities.

7. Ducted fans must always be vented to the outdoors.

8. This unit must be grounded.

9. To avoid motor bearing damage and noisy and/or unbalanced
impellers, keep drywall spray, construction dust, etc. off
power unit.

WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK,

DO NOT USE THIS FAN WITH ANY SOLID-STATE SPEED CONTROL
DEVICE.

10. Acceptable for use over a bathtub or shower when installed
in a GFCI protected branch circuit.

11. NEVER place a switch where it can be reached from a tub or
shower.

WARNING: DO NOT USE IN KITCHENS

CAUTION: FOR GENERAL VENTILATING USE ONLY. DO

NOT USE TO EXHAUST HAZARDOUS OR EXPLOSIVE MATERIALS
AND VAPORS.

SAVE THESE INSTRUCTIONS

2A0572021 Rev. C 6/06

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INSTALLATION INSTRUCTIONS
CAUTION:

SERVICE PANEL BEFORE STARTING INSTALLATION.

MAKE SURE POWER IS SWITCHED OFF AT

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
1 - Damper Assembly (attached)
1 - Mounting Bracket
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).

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.

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 straight-blade 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).

"

3/4

"

1/2

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

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Figure 6

SECTION 5

Wiring

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. 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.

2. From where you have access to inside the fan’s junction
box, connect the White wire from the house to the White
wire from the fan’s receptacle. Connect the Black wire from
the wall switch to the Black wire from the fan’s 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.

Figure 8

2. Install the grill by squeezing the two ends of the springs
together and installing them up into the slots of the fan’s
housing. Push the grill up into position (Figure 9).

Figure 9

3. Restore power and test your installation.

SECTION 7

White

Supply

from

Hot (Black)

house

Figure 7

Ground

SECTION 6

Completing the Installation

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 8).

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

1c. Wiring is not connected properly. 1c. Turn off power to unit. Check that all wires are connected.

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

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

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

Use and Care

CAUTION: MAKE SURE POWER IS SWITCHED OFF AT

SERVICE PANEL BEFORE SERVICING THE UNIT.

1. 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

2. 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.

Finishing the Installation

in housing. Restore power to unit.

in the roof cap or wall cap where the fan exhausts to the outside.

tightened. Restore power to unit.

, to reinstall grill.

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