Honeywell T8131C Owner's Manual - Page 4

Programming Thermostat NOTE: When batteries are installed, your T8131 Thermostat can be programmed in your hand (armchair programming), or when it is mounted on the wall. Batteries are not required for normal thermostat operation; however, installed batteries are recommended to retain your personal temperature program in memory if ac power is lost. See Installing Batteries section. When you program the thermostat, set one schedule for weekdays and another for weekends, because your temperature requirements probably vary. (During weekends, only the WAKE and SLEEP time periods are available.) Use the personal Program Schedule for planning your program schedule of time and temperature settings for various times of the day. Four time periods are available during weekdays -WAKE, LEAVE, RETURN, and SLEEP. View these periods individually on the display when you press the Set Schedule key. Select WAKE if you want the house at a comfortable temperature when you get up, while you get ready for work or school. When deciding what time to set for your WAKE period, include extra lead time, depending on the outside temperature and your furnace response time, to give the furnace a head start to heat the house before you get up. (This will be a higher temperature during heating season, or a lower temperature during cooling season.) 4 69-0812-2