1996 Mercury Sable Owner's Manual - Page 124

To turn your EATC on, press the AUTO button or any of the six manual override buttons along the bottom of the control. To turn your EATC off, press the OFF button. When the system is off, the Display window will be blank (dark). If you select AUTO, the system will automatically determine fan speed and airflow location. If a manual override button is selected, your selection determines airflow location only. Fan speed remains automatic unless you override it by pressing either side of the FAN speed button located at the extreme left of the control panel. To change the temperature, select any temperature between 65˚F (18˚C) and 85˚F (29˚C) by pressing the a or b side of the TEMP button. The EATC will display the selected temperature. To change the temperature display from Farenheit to Celsius, depress the MAX A/C and V F-DEF at the same time and hold them down for about a second. To change back to the original setting, repeat the process. If the battery is disconnected, the display will revert to Fahrenheit and must be reset to Celsius. If you want continuous maximum cooling, press the b side of the TEMP button until 60˚F (16˚C) is shown in the display window. Your EATC will cool at maximum and disregard the 60˚F (16˚C) setting until you select a warmer temperature with the a side of the TEMP button. If you want continuous maximum heating, press the a side of the TEMP button until 90˚F (32˚C) is shown in the display window. Your EATC will provide maximum heat regardless of the 90˚F (32˚C) setting until you select a cooler temperature with the b side of the TEMP button. 97