User Guide

BACKLIGHT OPTION
Press and hold OK, then press + key simultaneously
to select different BackLight mode. Each press of +
key will toggle between different modes in according
to the Light Bulb symbol on the top left of LCD
screen:
- No Light Bulb means BackLight is turned off
-
Backlight always ON
- Auto: On for 25 seconds when any
key is pressed.
NOTE ON INSTALLING THE FRONT LCD COVER
In order for the thermostat to work properly, the slide switch on the front LCD cover must be aligned with the slide switch on the back
cover. After installation, if the word “FLOOR’ is displayed on the upper right corner of the LCD screen, then the front cover is properly
aligned with the back cover. If the word “FLOOR” is missing on the upper right corner of the LCD screen, then remove the front cover
and move the slide switch to the correct position as shown below:
After setting the correct slide switch position below, point the lever-stud of
the slide switch on the front cover to the elliptical hole on the back cover
when closing the front cover
Internal slide switch on the back cover should be set at the
first position from the top (there are 4 positions)
Internal slide switch on the front cover should be set at the
second position from the bottom (there are 4 positions)