SWITCH BOX
GROUNDED
WIRE/CLIP DETAIL
UNIT
WHITE
RED
120 VAC LINE IN
ON/OFF
SWITCH
BLACK
GROUND
SENSOR
FAN
UNIT
GROUND
WHITE
BLACK
BLACK
RED
BLACK
ON/OFF SWITCH
RED
WHITE
WHITE
GROUND
WIRING OPTION #2
Allows fan to operate in automatic mode or to be turned ON
independent of humidity sensing control.
WIRING COVER
BLACK
SWITCH BOX
120 VAC
LINE IN
OFF (AUTO)
ON (MANUAL)
ON
(MANUAL)
OFF (AUTO)
WIRE THE FAN
(CONT'D)
SENSOR
FAN
BLACK
RED
120 VAC
LINE IN
UNIT
BLACK
WHITE
GROUND
WIRING OPTION #3
Fan circuit will always be in automatic mode.
ATTACH THE GRILLE
1. Squeeze grille springs
together and insert
springs into slots in
blower assembly.
2. Push grille up against
ceiling.
3. Turn on power and check
fan operation.
SENSOR OPERATION
The ULTRA-SENSAIRE
®
fan uses a sophisticated humidity sen-
sor that responds to: (a) rapid to moderate (user-adjustable)
increases in humidity or (b) humidity above a user-adjustable
set-point (50%-100% Relative Humidity). The humidity sensor
may occasionally turn the fan ON when environmental condi-
tions change. If the fan continuously responds to changing
environmental conditions, "SENSITIVITY" adjustment may be
required.
MANUAL ON WITH TIMED OFF
The ULTRA-SENSAIRE
®
fan has an additional operation fea-
ture. 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 user-adjustable "TIMER"
period (approx. 5 to 60 minutes). This period is factory-set for
approximately 20 minutes.
To manually energize the fan:
1. If fan power switch is already ON, proceed to Step 2; other-
wise, 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.
USE AND CARE
SENSITIVITY ADJUSTMENT
The "SENSITIVITY" has been factory set for most shower appli-
cations. However, if the fan is in a tub area or is being used for
dampness control, the "SENSITIVITY" may need to be increased
toward maximum ("MAX."). If the control is responding too of-
ten to changing environmental conditions, movement toward
less ("MIN.") "SENSITIVITY" may be required.
To adjust the "SENSITIVITY":
1. Disconnect power at service entrance.
2. Through the grille, locate the screwdriver slot marked "SEN-
SITIVITY".
3. Using a small, flat-blade screwdriver, carefully rotate the
"SENSITIVITY" adjustment toward "MAX." or "MIN."
4. Turn on power and check operation by turning on the shower
or other humidity source until the fan turns on.
5. Repeat above steps if necessary.
TIMER ADJUSTMENT
The ULTRA-SENSAIRE
®
fan has a "TIMER" that can be ad-
justed from 5 to 60 minutes (factory-set at approx. 20 minutes).
This "TIMER" controls the length of time that the fan remains
ON (a) after the sensor has stopped sensing a rise in humidity
and the humidity level is below the user-adjustable set-point or
(b) after being energized by cycling the power switch.
To adjust the "TIMER":
1. Disconnect power at service entrance.
2. Through the grille, locate the screwdriver slot marked
"TIMER".
3. Using a small, flat-blade screwdriver, carefully rotate the
"TIMER" adjustment to desired setting (from 5 to 60 min-
utes).
4. Check operation by cycling the power switch as instructed
under "MANUAL ON WITH TIMED OFF" or by turning on a
humidity source until the fan turns on.
5. Turn humidity source off and time the unit.
6. Repeat above steps if necessary.
WARNING
BEFORE CLEANING, SERVICING OR ADJUSTING THE
UNIT, SWITCH POWER OFF AT SERVICE PANEL. LOCK
SERVICE PANEL TO PREVENT POWER FROM BEING
SWITCHED ON ACCIDENTALLY.
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