Honeywell Home RTH2410B1019/E1 User manual

RTH2510/RTH2410
Programmable Thermostat
Operating
Manual
69-2420ES-03
M38852
Heat Off Cool Auto On
Fan
Set
Hold
Run
Fr
Return
pm
Cool
72
On
6:30

This manual covers the RTH2510 and RTH2410 models.
Read and save these instructions.
CAUTION: EQUIPMENT DAMAGE HAZARD
To prevent possible compressor damage, do not use Cooling mode when the
outdoor temperature is below 50 °F (10 °C).
Need Help?
For assistance with this product please visit www.resideo.com
or call Resideo Customer Care toll-free at 1-800-468-1502.

Programmable Thermostat RTH2510/RTH2410
Overview
Thermostat features ...............................................2
Quick start..................................................................3
Quick reference to controls ..................................4
Quick reference to display....................................5
Programming & Operation
Setting the clock ......................................................6
System switch (Heat/Cool)...................................7
Fan switch (Auto/On).............................................8
Using the schedule..................................................9-12
Temporary schedule override ..............................13
Permanent schedule override .............................14
Early start ...................................................................15
Compressor protection ..........................................15
Appendices
Battery replacement .............................................. 16
In case of difficulty ................................................. 17
Customer assistance.............................................. 18
One-year limited warranty ...................................19
Table of contents
Your new thermostat is pre-
programmed and ready to go!
See page 3 for quick start.

Operating Manual
69-2420ES—03 2
Your new thermostat has been designed to give you many years of reliable service and
easy-to-use, push-button climate control.
Features
• Backlit display is easy to read
• Displays ambient (measured) temperature at all times
• One-touch access to setpoint temperature
• Separate programmable daily schedules (7-day programming)
• Temporary and permanent override of schedule
• Early start ensures the right temperature at the right time
• Built-in compressor protection
About your new thermostat

RTH2510/RTH2410 Programmable Thermostat
3 69-2420ES—03
Simply perform the three steps below and the thermostat is in operation:
Set the clock....................................................................................................................See page 6
Select whether to heat or cool..................................................................................See page 7
Select whether to run the fan continuously or only when needed ............See page 8
Your thermostat is pre-programmed with energy saving settings. If you do not wish to
use these settings, you can:
Modify the schedule (RTH2510).......................................................................... See page 11
Modify the schedule (RTH2410).......................................................................... See page 12
Temporarily override the schedule...................................................................... See page 13
Permanently override the schedule.................................................................... See page 14
This thermostat is ready to go

Operating Manual
69-2420ES—03 4
Quick reference to controls
M38893
Heat Off Cool
Auto On
Fan
Set
Hold
Run
System switch (see page 7)
•Cool: System is in Cooling
mode.
•Off: System is off.
• Heat: System is in Heating
mode.
Fan switch (see page 8)
•On: Fan runs continuously.
•Auto: Fan runs only when
heating or cooling is activated.
Up/Down buttons
Press to adjust temperature.
Screen
Lit for 12 seconds when you
press any button.
Press to set clock, day or
schedule (see pages 6 &
11/12).
Press to override schedule and
hold temperature (see page
14).
Press to run (follow) schedule
(see page 9).

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

Operating Manual
69-2420ES—03 6
Press the Set button. Set Time will appear on the screen and
the time display will flash.
Press the Up or Down button to set the time.
Press the Set button again. Set Day will flash on the screen.
Press the Up or Down button to select the day of the week.
Press the Run button to save the changes & exit. (The
changes are also saved if you do not press any button for 60
seconds.)
NOTE: The clock has lost its settings when the time display flashes. If the thermostat is
following the schedule, it will use the temperature settings programmed for the Wake
period for Monday until you readjust the clock.
Set the clock
M38897

RTH2510/RTH2410 Programmable Thermostat
7 69-2420ES—03
System switch (Heat/Cool)
Use the System switch to place the system in
one of the following modes:
•Cool: System is in Cooling mode.
•Off: System is off.
•Heat: System is in Heating mode.
CAUTION: EQUIPMENT DAMAGE HAZARD.
Do not use Cooling mode when the outdoor temperature is below 50°F
(10°C).
M38894
Heat Off Cool
Auto On
Fan
Set
Hold
Run

Operating Manual
69-2420ES—03 8
Fan switch (Auto/On)
Use the Fan switch to select the fan
operation.
•Auto: The fan runs only when heating or
cooling is activated (commonly used
setting).
•On: The fan runs continuously.
M38895
Heat Off Cool
Auto On
Fan
Set
Hold
Run