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THZ-100 THERMOSTAT
Adjusting the LCD Brightness
If you desire to change the brightness of your thermostat LCD
display then use the arrow keys to move the highlight bar to LCD
Brightness.
Press the key below the OK key label in the smart-key label at the
bottom right of the display to select this option. If you decide to
cancel the operation then press the key below the Cancel key label
in the smart-key label at the bottom left of the display.
After pressing OK, the screen updates to a screen that says LCD
Screen Brightness at the top of the screen and the current brightness
level in the center of the screen. Use the arrow keys to adjust the
brightness percentage to the value you desire. As you change the
value of the brightness in the center of the display the brightness
changes to correspond to the level displayed.
When you are satisfied with your brightness level selection then
press the key below the Set Level key label in the smart-key label
box at the bottom right of the display to save your new value. If
you decide to cancel the operation then press the key below the
Cancel key label in the smart-key label at the bottom left of the
display.