HEAT / OFF / COOL, SYSTEM MODE SWITCH:
Set this switch to HEAT to control
your heating system, and COOL to control your cooling system. The OFF position
will disable both the heating and cooling units.
AUTO / ON, FAN MODE SWITCH:
When this switch is in AUTO, the blower fan (if
present in your system) will automatically cycle on and off by itself while heating
or cooling is running. When in the ON position, the blower fan will run constantly
with or without a demand for heating or cooling, even when the System Mode
switch is in the OFF position.
NOTE: The Fan Mode switch only works if your system provides a wire for the
thermostat’s “G” wire terminal, to control a blower fan. The Fan Mode switch
has no effect in systems that do not have a blower fan (such as a hot water
radiator system).
SET BUTTON:
This button is used to access the temperature program settings
when in heat or cool mode, and for adjusting the day and clock while in off
mode.
NEXT BUTTON:
This is used when setting items such as software options, and
temperature programs. When items on the screen are flashing during
adjustments, pressing the NEXT button will cycle through which item is flashing.
HOLD BUTTON:
This button activates and deactivates the manual Temperature
Hold feature, which maintains a fixed set temperature indefinitely without
following a program routine. This button is not used when ITEM #02 below is set
to “3” for manual non-programmable.
UP / DOWN BUTTONS:
The UP and DOWN buttons are used to control the set
temperature, or adjust any other on-screen items. Typically, an item that is
flashing can currently be adjusted.
17
FRONT PANEL ITEMS:
