Venstar T2900 Owner's Manual page 87

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.
increases the sensitivity of the sensor to light.
To check for correct sensitivity, place the thermostat in the Program
On mode. When the lights are on the thermostat should enter
Occupied 1 and the Occupied 1 icon will blink on the display. If the
thermostat does not enter Occupied 1 while the lights are on, use
the supplied screwdriver to turn the light sensor screw clockwise
until the Occupied 1 icon appears on the display.
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.
The Light Sensor Adjustment Screw
is located on the side of the thermostat.
Light Sensor
Adjustment Screw
17
Due to varying lighting conditions, light activation may
not be suitable for all installations.
Turning the screw clockwise
Turn the screw clockwise
to INCREASE light sensor
sensitivity
Turn the screw counter-
clockwise to DECREASE
light sensor sensitivity
Page 17.3