Owner`s manual

Page 17.3
Adjusting the Light Sensor
The light sensor can be adjusted for variable degrees of sensitivity.
The sensitivity adjustment screw is located on the side of the
thermostat, as illustrated below. Turning the screw clockwise
increases the sensitivity of the sensor to light.
The Light Sensor Adjustment Screw
is located on the side of the thermostat.
Light Sensor
Adjustment Screw
Turn the screw clockwise
to INCREASE light sensor
sensitivity
Turn the screw counter-
clockwise to DECREASE
light sensor sensitivity
Due to varying lighting conditions, light activation may
not be suitable for all installations.
To check for correct sensitivity, place the thermostat in the Program On
mode. When the lights are on the thermostat should enter Occupied
and the Occupied icon will blink on the display. If the thermostat
does not enter Occupied while the lights are on, use the supplied
screwdriver to turn the light sensor screw clockwise until the Occupied
icon appears on the display.
17
The thermostat should enter an unoccupied period when the lights are
off. If the sensor does not enter an unoccupied period when the lights
are turned off, use the screwdriver to turn the light sensor screw
counterclockwise until the Unoccupied icon appears on the display,
with the lights off.