14
on your furnace or air conditioner, it considers (1) air
temperature, (2) the temperature of the wall and (3)
when you want the comfort temperature established.

During Adaptive Intelligent Recovery

TM the ther-
mostat increases the control temperature gradually
and turns the equipment on and off several times to
save energy by avoiding “overshooting” the comfort
temperature. See the current control temperature
anytime during recovery by pressing the PRESENT
SETTING key. On some models, both the SYSTEM
and ENERGY SAVING lights may be lit at the same
time during recovery.

This “smart” control learns from experience

. Each
day it checks how closely it “hit the target” and
adjusts the recovery start time accordingly.
It typically takes four to eight days after installa-
tion for this thermostat to adjust to the weather, life
style, home construction and heating/cooling sys-
tem. The thermostat calculates the LEAVE/RETURN
recovery separately from the SLEEP/WAKE recovery.
ABOUT ADAPTIVE INTELLIGENT
RECOVERYTM
•

People perceive temperature

from a variety of
sources, not only from the air in the room, but
also from their surroundings—walls, windows
and furnishings.
•

Human beings feel differences

in temperature
as slight as two degrees Fahrenheit.
•

Common household thermometers

and standard

thermostats

sense only air temperature, which
may or may not reflect how hot or cold the room
actually

feels

to a human being.
•This thermostat reads the temperature of the
wall as well as the air—and responds to tem-
perature changes as little as one degree Fahr-
enheit—so room temperature is more likely to
“feel right.”
THE OPTIMUM COMFORT AND ENERGY
SAVINGS SOLUTION

This thermostat is actually a small but powerful

computer

. When calculating the exact time to turn
AM
PM
SUN MON TUE WED THU FRI SAT COOL ON HEAT ON
WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED
REPL
BAT
SET
PT
AM
PM
SUN MON TUE WED THU FRI SAT COOL ON HEAT ON
WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED
REPL
BAT
SET
PT
AM
PM
SUN MON TUE WED THU FRI SAT COOL ON HEAT ON
WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED
REPL
BAT
SET
PT
AM
PM
SUN MON TUE WED THU FRI SAT COOL ON HEAT ON
WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED
REPL
BAT
SET
PT
System Operating
in Energy Savings Mode
Recovery Begins Recovery Continues
System Operating
in Comfort Mode
ENERGY
SAVINGS
PERIOD
RECOVERY FROM ENERGY SAVINGS COMFORT
PERIOD
TIME
TEMPERATURE
THE THERMOSTAT USES THE SAME SCHEME TO RETURN GRADUALLY
TO LOWER COMFORT TEMPERATURE DURING THE COOLING SEASON. M171