Installation Guide

3b. MOTION SENSING MODELS: Plug the fan’s
2 pin and 3 pin quick connect motor cords
into the receptacles located on the side of
the wire compartment. Plug the 3 pin quick
connect cord from the motion sensor on the
grill into the receptacle coming out of the
top of the wire compartment. These cords
will only fit one way into the receptacles
(Figure 12).
4. Install the ceiling mounting flange to cover any
gaps which exist between the housing and
the finished ceiling. Remove the two screws
that connect the ceiling mounting flange to
the housing. Put sealant (not provided) on
inside edge of the ceiling mounting flange to
ensure that the flange is sealed to the ceiling.
Line up the screw holes in the ceiling mounting flange with the screw holes on the inside of
the housing and press flange in place so it is tight against the ceiling. Reinstall ceiling flange
mounting screws inside the housing (Figure 13).
NOTE: If the housing is mounted too 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.
5a. STANDARD AND HUMIDITY SENSING MODELS: 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 14).
5b. MOTION SENSING MODELS: Install the grill by squeezing the spring furthest from
the motion sensor together and installing it up into the slot furthest from the wire
compartment on the fan’s housing. Attach the 3 pin quick connect from the motion sensor
on the grill to the harness installed in Step 2a. This cord will only fit one way into the
receptacle. Install the other spring in place and push the grill up into position (Figure 15).
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6728039 Rev. M 4-17 4 of 12
6. 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 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
2 times = 2.5 minutes 6 times = 12.5 minutes
3 times = 5 minutes 7 times = 15 minutes
4 times = 7.5 minutes 8 times = 17.5 minutes
5 times = 10 minutes 9 times = 20 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 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.
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 may be 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.
Figure 13
Screws
Ceiling
Mounting
Flange
Screw Holes
Figure 14
Figure 15
Standard Models Humidity Sensing Models
Figure 11
Figure 12
Motion Sensing Models