Honeywell ENERGYPRO T8665D - Manual (Page 40)

69-1538 40
Always use fresh alkaline batteries. Non-
alkaline batteries do not last as long and can
leak, causing damage to the thermostat and
wall surface.
ADAPTIVE INTELLIGENT
RECOVERY™ CONTROL
Your new thermostat is so smart, it’s almost
human. You perceive temperature from a
variety of sources, not only from the air in the
room, but also from your surrounding 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 may not reflect how
hot or cold the room actually new thermostat
reads both the temperature of the wall and in
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 thermostat acts like a computer. When
calculating the time to turn on your heating or
cooling system, it considers air temperature,
wall temperature, and the time you want to
reach the comfort temperature. After
considering these three things, Adaptive
Intelligent Recovery™ control gradually
changes the temperature from the energy
savings setting to the comfort setting (for
example, from a heating temperature of 62° at
night to 70° in the morning).
The system runs continuously until the comfort
temperature you choose is reached without
overshooting the setting. This saves energy.