Installation Guide
NOTE: If the housing is mounted to far or not far enough into the ceiling for the flange to make
a solid connection, loosen the mounting channel and adjust the housing up or down on the
rails. Once in place, fully tighten the mounting channel nuts.
5. Install the grill by squeezing the springs together and installing it up into the slot furthest
from the wire compartment on the fans housing. Attach the 4 pin quick connect from the
grill to the 4 pin connector on the top of the wire cover. The cord will only fit one way into
the receptacle. Install the other spring and push the grill up into position. (Figure 12).
6. Open the light lens on the grill by pushing into the lens and allowing in to spring open.
Install the 8 watt lamp (included) into the lamp holder by lining up the pins on the lamp
base to the socket of the lamp holder and turning the lamp body clockwise until the lamp
snaps into place and is firmly seated in the lamp holder. Install a 4 watt maximum type C7
(candelabra base) night light (not included) into the side lamp holder.
7. Restore power and test your installation.
SECTION 7
Programming the Occupancy Sensor
1a. Setting the Occupancy Time Delay. This will set the amount
of time the fan will continue to operate on high speed after the
room is vacated. Locate the motion sensor on the fan’s grill
and press the button 2 times. The LED on the sensor will then
flash the number of times to indicate the current setting, this
will repeat 3 times:
1 time = 30 seconds 6 times = 12.5 minutes
2 times = 2.5 minutes 7 times = 15 minutes
3 times = 5 minutes 8 times = 17.5 minutes
4 times = 7.5 minutes 9 times = 20 minutes
5 times = 10 minutes
1b. To adjust the setting, while the sensor is still flashing from Step 1a, press the button the
number of times that corresponds with the amount of time you desire, for instance 3 times
sets the delay to 5 minutes (see numbers in Step 1). The sensor will then flash the number
of times for the new setting 3 times before exiting back to the programming mode.
2a Setting the Minimum On Time. This sets the minimum time the fan will operate on
high speed once motion is detected within the room. This works in conjunction with
the Occupancy Time Delay feature set in Steps 1a and 1b. For instance if you set the
minimum time on for 15 minutes and the Time Delay for 5 minutes, the fan will operate
for at least 15 minutes then 5 additional minutes.
NOTE: This is a minimum time that the fan will operate. If the room is occupied longer, the
fan will continue to run until the room is vacated and the occupancy time delay has elapsed.
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2b. Locate the motion sensor on the fan’s grill and press the button 10 times. The LED on
the sensor will then flash the number of times to indicate the current setting, this will
repeat 3 times:
1 time = 0 minutes 4 times = 45 minutes
2 times = 15 minutes 5 times = 60 minutes
3 times = 30 minutes
2c. To adjust the setting, while the sensor is still flashing from Step 2b, press the button
the number of times that corresponds with the amount of time you desire, for instance
3 times sets the minimum on time to 30 minutes (see numbers in Step 2b). The sensor
will then flash the number of times for the new setting 3 times before exiting back to
the programming mode.
3. Once all setting have been made and the sensor will return to detection mode and the
LED will flash when occupancy of the room is detected.
SECTION 8
Setting the Humidistat
This fan is equipped with a humidity sensor that automatically turns the fan on (or to high
speed on dual speed models) when humidity is above set point and off (or back to low speed
on dual speed models) when humidity is at or below set point. If the fan is operating too long
or not enough, first check to see the humidity sensor set point. In cases where the ambient
humidity level of the room rises higher than the preset level, the fan will turn on even if the
room is not occupied. This helps prevent conditions that lead to mold growth.
CAUTION: MAKE SURE POWER IS SWITCHED OFF AT
SERVICE PANEL BEFORE SERVICING THE UNIT.
1. To set the desired humidity level of the room, remove the grill and locate the
dehumidistat dial located on the wire compartment cover.
2. Set the dial to the relative humidity you want the fan to maintain usually between 50 &
80%. Moist climates will require higher settings than dry climates. When the humidity
level of the room is below this setting the fan will remain off (or low speed on dual speed
models). When the humidity level rises above this setting the fan will turn on (or to high
speed on dual speed models) and run until the humidity level falls below this setting.
3. Reinstall the grill and restore power.
SECTION 9
Activating the Boost Speed
Should it be determined that additional flow is necessary due to excessive duct resistance or
other field conditions this model is equipped with a boost speed. To activate the boost speed:
Single Speed Models
1a. Remove the grill and find the 2 pin wire harness from the fan motor to the capacitor.
1b. Disconnect the harness from the capacitor at the quick connect fitting and remove the
“Boost Label” from the quick connect fitting on the boost capacitor.
1c. Plug the motor harness into the boost capacitor and reinstall grill.
Dual Speed Models
2a. Remove the grill and find the rocker switch located on the main wire compartment in
the corner of the fan housing.
2b. Push the rocker switch to the boost position and reinstall grill.
SECTION 10
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 Completing 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.
CAUTION: ALLOW BULBS TO COOL BEFORE REPLACING.
3. Changing the Lamp: Disconnect power to the unit. Open the light lens on the grill by
pushing into the lens and allowing in to spring open.
LED Bulb: Remove lamp by gently twisting the lamp base counterclockwise while
applying outward pressure. Installation is the reverse of removal. Replace with Air King
model AK8LED40 or a compatible GU24 8 watt LED lamp..
Night Light: Unscrew night light bulb from socket and replace with a 4 watt maximum
type C7 (candelabra base) night light bulb.
Figure 11
Screws
Ceiling
Mounting
Flange
Screw Holes
Figure 12