Honeywell T8665C Thermostat User Manual


 
7 69-1538
THERMOSTAT FEATURES
Adaptive Intelligent Recovery™ Control
for comfort and energy savings.
Customize the program schedule—
program your own schedule to fit your
needs.
Temporary schedule override—set the
thermostat higher or lower for the current
program schedule.
Permanent schedule override—set the
thermostat higher or lower indefinitely.
Vacation mode (1 to 255 days) for added
comfort and energy savings. Set the
temperature higher or lower for energy
savings while on vacation. At the same
time, set the comfort level you want when
you return.
Set the filter indicator (0, 15, 30, 60, 90, or
120 days) to remind you to change the
filter.
Information at the press of a button—use
the i (information) key to see the outdoor
temperature (C7089B Outdoor Temper-
ature Sensor optional accessory), the
current setpoints, or the filter status.
Daylight Time key for quick time changes
between Daylight and Standard time.
Backlit display for improved readability
(press any key to activate).
Optional outdoor temperature display—
ask your installer to install an outdoor
temperature sensor to activate this
feature.
For additional features, see the System
User’s Guide provided by your Energy
Utility or systems provider.