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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).
MULTI-FUNCTION, SET SLIDE SWITCH: This switch provides an easy way to
quickly access the most commonly used thermostat settings. This switch has 4
individual positions, and unless a specific setting is being adjusted, this switch
should always remain in the RUN position for the thermostat to control the room
temperature. The other Set Slide switch positions are described in greater detail
in the ADVANCED FEATURES section. NOTE: this switch is only operable when the
thermostat is in “Programmable” mode. When the thermostat is used in
“Manual” control mode, all 4 of the switch positions will act like the RUN
position, except the “AIR FILTER” position.
UP / DOWN BUTTONS: The UP and DOWN buttons are used to adjust any item
that can be changed by the user. Examples are the set temperatures, clock
times, and days of the week. In many cases, an item may be flashing if it can
currently be adjusted.
HOLD BUTTON: This button activates and deactivates the manual Temperature
Hold feature.
EMER BUTTON: When in Normal Run mode, the usage of this button varies
depending upon your specific system configuration. For heat pump systems,
pressing this button enables your emergency heat function, which is described in
greater detail in the OPERATING INSTRUCTIONS section. For conventional
systems, there is no such thing as emergency heat, so this button will have no
effect.
NEXT BUTTON: This button is mostly used while setting items such as software
options, and temperature program periods. When there are several items on the
screen that can be changed, usually one of them is flashing indicating that it can
be adjusted. Pressing the NEXT button will cycle through which item is flashing.
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