Air King Blower AK90 User Manual

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1b. Internal Wire Compartment: Remove the screw holding the venturi
in place. Lift the venturi up and at an angle to slide it out of the
housing (Figure 6). Remove the wire compartment cover screw
and place the cover in a secure place (Figure 7).
NOTE: If the fan motor plug is
connected to the fan housing
receptacle, unplug so the
venturi can be completely
removed.
2. 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.
3. From where you have chosen to access 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
8). Use approved methods for all connections.
NOTE: The fan’s receptacle wires might need to be pulled outside
compartment for connection. Only pull the three loose wires outside of
compartment. Additional wires will be present.
4. Carefully tuck wire back inside wire compartment and replace wire
compartment cover securing with the screw that was removed earlier.
SECTION 6
Completing the Installation
1. If the fan’s blower assembly was removed during the wiring
process, reinstall the blower by reversing the directions in
Step
1b
in Section 5
Wiring
.
2. Plug the fan’s quick connect motor cord into the receptacle. This
cord will only fit one way into the receptacle (Figure 9).
3. Install the grill by squeezing the two ends of the springs together
and installing them up into the slots on the fan’s housing. Push the
grill up into position (Figure 10).
4. 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.
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
Finishing the
Installation
, to reinstall grill.
2. Cleaning the Fan Assembly: Wipe all parts with a dry cloth or gently
vacuum the fan. NEVER IMMERSE ELECTRICAL PARTS IN WATER.
www.airkinglimited.com
210952009 Rev. B 2-06 3 of 8
Figure 7
Screw
Wire
Compartment
Cover
Figure 8
Ground
Hot (Black)
White
Supply from
house
Figure 9
Figure 10
Figure 6
Plug
Screw
Venturi
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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