Carrier P274-0300-C Thermostat User Manual


 
Mode Button
selectsbetween HEAT,
COOL, AUTO, and OFF operation.
HeM pump thermostat models also
includean EMERGENCY HEAT mode.
Up
Increase or decrease the
desired temperature setting.
LOW BATTERY Indicator_
will light when batteries
(if installed) need to be replaced.
Outdoor Temperature Display
is an optional feature that shows the
outdoor temperature on the LCD readout.
SERVICE FILTER Indicator _
lets you know it is time to clean
or replace your system's air Mter.
/
Room Temperature Display --/
shows current room temperature.
COOL ON Indicat° e---- _ /
is displayed when th
coolingequipment is /"
operating.
_/
HEAT ON Indicator
is displayed when the
heating equipment is
operating.
i
AUXILIARY HEAT Indicator
is displayed when a heat pump
system is operating with auxiliary
heat air Mter.
-- Fan Button
chooses between CONTINUOUS FAN
and AUTO FAN operalion.
-- RESET FILTER Button
restarts the timer that calculates
the next air filter change or cleaning.
Fig. 1 -- Thermostat Display and Buttons