DISCHARGE OPENING
(OUVERTURE DE DÉCHARGE
WIRING KNOCKOUT
(DÉBOUCHURE)
HOUSING
(BOÌTIER)
MOUNTING
BRACKET
(PATTE DE
FDCATION)
MOUNTING SCREWS
(VIS DE MONTAGE)
MOUNTING SPRING
(RESSORT DE
MONTAGE)
MOUNTING SPRING
(RESSORT DE MONTAGE)
NOTCHED BOSS
(BOSSAGE CRANTE)
POWER UNIT MOUNTING PLATE
(PLAQUE DE MIONTAGE DU
MOTEUR
GRILLE
(LA GRILL)
FIGURE 4
SENSOR OPERATION AND CARE
The SmartSense™ humidity sensing fan is designed to sense
changes in room humidity and to automatically activate the fan.
The humidity sensor unit continually monitors humidity levels and
continues to operate the fan until humidity levels return to normal.
The length of time that the unit operates after humidity levels have
normalized is user adjustable.
Note: When power is first applied to the unit the fan will
operate for approximately 5 minutes (or longer depending
upon timer control setting. See below). After the initial
operation the unit will operate automatically when humidity
level changes trigger the sensor. Leave wall switch in ON
position for normal operation. Power should be removed
during servicing.
TIMER ADJUSTMENT
The humidity sensor control timer can be adjusted to operate the
fan from approximately 5 to 20 minutes after humidity levels have
returned to normal. To adjust the delay time:
1. Disconnect power to the ventilator.
2. Remove the ventilator grille.
3. Using a small flat-blade screwdriver, slowly rotate the timer
control (located in one corner of the ventilator - see figure 3)
to the desired point.4. Replace the grill and turn on the power.
Note: The delay time should be adjusted to suit the specific
conditions of your application. Observe room moisture levels
and allow adequate time after visible condensation has been
removed to assure that residual moisture has been eliminated.
SENSOR CLEANING
The humidity sensor is permanently mounted in the control unit and
is visible in one corner of the ventilator behind the grille.
Periodically check and clean the sensor as follows:
1. Disconnect power to the ventilator.
2. Remove the ventilator grille.
3. Locate the sensor. Gently remove accumulated dirt or
lint using a cotton swab.
4. Replace the grille and turn on power.
