Honeywell T8600D Owner's Manual - Page 15

DELUXE PROGRAMMABLE THERMOSTAT If you insert new batteries within 20 to 30 seconds of removing the old batteries, the system retains the current time and day. If the display is blank, the batteries are dead or installed incorrectly. You must reset the time and day. Refer to Set the Clock for instructions. As a precaution when leaving home for longer than a month, change 60 70 80 90 batteries before leaving to prevent the system from shutting down due 60 70 80 90 to lack of power. Always use fresh alkaline batteries. Nonalkaline batteries do not last as long. They also can leak, causing damage to the thermostat and the wall surface. Adaptive Intelligent Recovery™ Control Breakthrough Technology Senses Temperature More Like You Do Your Deluxe Programmable Thermostat is so smart, it's almost human. • Your body perceives temperature from a variety of sources, not only from the air in the room, but also from your surroundings-walls, windows and furnishings. • Humans feel differences in temperature as slight as two degrees Fahrenheit. • Common household thermometers and standard thermostats sense only air temperature, which might or might not reflect how hot or cold the room actually feels to a human being. • Your new thermostat reads both the temperature of the wall and the air-and responds to temperature changes as little as one degree Fahrenheit-so room temperature is more likely to feel right to you and your family. The Optimum Comfort and Energy Savings Solution 70 F 60 F SLEEP WAKE SETPOINT TEMPERATURE ACTUAL TEMPERATURE HEATING MODE THERMOSTAT USES THE SAME SCHEME TO RETURN TO LOWER COMFORT TEMPERAURE DURING THE COOLING SEASON. M15084 15 69-1400-1