Set the time by pressing and holding the "Hour" button until the current hour appears. Press "Min" until the correct minute time shows. Press the "Day" button until the correct day appears. Press "Return" to confirm the current time and return to the normal mode.
Press "Auto Program" to use the pre-set program for the thermostat. Note that the unit comes pre-programmed to meet Energy Star guidelines for energy efficient temperature settings for the days of the week.
Slide the "System Selector" switch to either "Heat" or "Cool" to make changes to the current program. Press "Prog" to enter the program mode and then use the "Hour" and "Min" buttons to change the desired time. Use the arrow buttons to change the desired temperature.
Press "Prog" to move through the weekday, and then weekend programs. Press "Return" when all changes have been made.
Make temporary changes to the current setting by pressing the up or down arrow and holding for more than one second to increase or decrease the current temperature. Press "Return" to confirm. The system will revert to the previously set program at the next program time.