INST
ALLA
TION
AND USE & CARE INSTR
UCTIONS
OPERA
TION
3
CLEANING & MAINTENANCE
For quiet and efficient operation, long life, and
attractive appearance - lower or remove grille
and vacuum interior of unit with the dusting brush
attachment.
The motor is permanently lubricated and never needs
oiling. If the motor bearings are making excessive
or unusual noises, replace the blower assembly
(includes motor and impeller).
OPERATION
The humidity control, fan, and light can be operated
separately. Use a 2- or 3-function wall control. Do
not use a dimmer switch to operate the humidity
control.
SENSOR OPERATION
This humidity-sensing
fan uses a sophisticated
humidity sensor that responds to: (a) rapid to
moderate increases in humidity or (b) humidity above
a set-point. The humidity sensor may occasionally
turn the fan ON when environmental conditions
change.
MANUAL ON WITH TIMED OFF
This humidity sensing fan has an additional operation
feature. For odor or vapor control, the fan can be
energized by cycling the power switch. Once the fan
has been energized in this manner, it will remain on
for the set timer period.
To manually energize the fan:
1. If fan power switch is already ON, proceed to
Step 2; otherwise, turn power switch ON for more
than 1 second.
2. Turn fan power switch OFF for less than 1
second.
3. Turn fan power switch back ON and fan will turn
ON.
50
60
80
70
10
5
60
15
40
20
30
50
%HUMIDITY
MINUTES
% HUMIDITY ADJUSTMENT
%HUMIDITY has been factory set at 80% for most
shower applications. If fan is not responding to changing
humidity conditions, adjust toward 50%. If fan is
responding too often to changing humidity conditions,
adjust toward 80%. If fan is still responding too often at
80%, contact Broan Technical Support.
To adjust the %HUMIDITY:
1. Turn power off at electrical service panel.
2. Use a small screwdriver to carefully rotate
%HUMIDITY control to desired level.
3. Turn power on.
4. Repeat above steps if necessary.
MINUTES ADJUSTMENT (TIMER)
This humidity-sensing fan has a timer that controls how
long the fan remains on after (a) rise in humidity and
(b) humidity level are both below the user-adjustable
%HUMIDITY setting, or after being energized by cycling
power switch.
To adjust the timer:
1. Disconnect power at electrical service panel.
2. Use a small screwdriver to carefully rotate MINUTES
control to increase or decrease time.
3. Turn power on.
4. Repeat above steps if necessary.
Factory settings shown.
SENSOR CLEANING
The humidity sensor is mounted in the control housing. The
sensor will operate most reliably when cleaned occasionally
as follows:
1. Disconnect power at service entrance.
2. Remove the grille. Use a dry dustcloth, clean toothbrush,
or lightly vacuum to clean sensor and grille. DO NOT
USE ABRASIVE CLOTH, STEEL WOOL PADS, OR
SCOURING POWDERS.
3. DO NOT USE cleaning sprays, solvents, or water on or
near the sensor!
