Honeywell T8600D Owner's Manual - Page 14

DELUXE PROGRAMMABLE THERMOSTAT Displaying the Outdoor Temperature If your thermostat is equipped with an outdoor sensor, you can check the temperature at the sensor by pressing once. Run Program Set Current Day/Time Hold Temp Day Daylight Time Time Wake Set Program Leave Return Heat/Cool Settings Copy System Sleep Fan Outdoor M14660 Replacing the Batteries (select models) • Install the batteries in the wallplate so the positive terminals all point up (see illustration). WALLPLATE B R RC O W Y G INSTALL 3 AA ALKALINE BATTERIES AS SHOWN, POSITIVE (+) TERMINALS TOWARD TOP. M10622 • If the thermostat is already mounted on the wall, remove the thermostat by placing your thumb between the thermostat and wallplate and pulling the thermostat up and away as shown. M16424 When the batteries are running low, a REPL BAT message flashes for one to two months before the batteries run out completely. Replace the batteries as soon as possible once the message flashes. 69-1400-1 14