Quick reference to display
Setpoint indicator
Appears when the setpoint
temperature is displayed.
Clock
Schedule period
System status
• Cool On: Cooling is activated. *
• Heat On: Heating is activated. *
• Aux On: Auxiliary heat is activated.
* When Heat On or Cool On is flashing, compressor protection is engaged (see page 15).
Temporary schedule override
(see page 13)
Low-battery warning
(see page 16)
Permanent schedule override
(see page 14)
Temperature
The ambient (measured) temperature
is normally displayed. To view the
setpoint temperature, press the Up or
M38896
Down button once. The setpoint
temperature will appear for five
seconds.
5
RTH2510/RTH2410 Programmable Thermostat
69-2420ES—03