Honeywell Rth2510b1000a Manual

Operating 
Manual
RTH2510 /RTH2410 S eries
Programmable Thermostat 
69-2725ES-01  

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® U.S. Registered Trademark. Patents pending. Copyright © 2012 Honeywell International Inc. All rights reser ved.
This manual covers the following models:
RTH2510
RTH2410
CAUTION: EQUIPMENT DAMAGE HAZARD. To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C). 

RT H 2 510 / RT H 2410
 1 69-2725ES—01
About your new thermostatThermostat features ....................................2Thermostat is preset, ready to go ...............3Quick reference to controls .........................4Quick reference to display ...........................5
Programming & OperationSet time and day .........................................6Select system setting ..................................7Select fan setting ........................................8Using program schedules...

Operating Manual
69-2725ES—01 2
About your new thermostat
Your new Honeywell 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
•	 Preset	 program	settings
•	 Temporary	 and	permanent	 override	of	schedule
•	 Early	 start	ensures	 the	right	 temperature	 at	the	 right	 time
•	 Built-in...

RT H 2 510 / RT H 2410
 3 69-2725ES—01
This thermostat is ready to go!
Your new thermostat is pre-programmed and ready to go. All you have to do is set the 
time and day. Then check the settings below and change if needed:
1 . Set time and day (required for proper operation) ..............................See page 6
2 . Select system setting: Preset to Off ....................................To change, see page 7
3 . Select fan setting: Preset to Auto .......................................To change, see...

Operating Manual
69-2725ES—01 4
M33612Heat  Off  CoolAuto  OnFanHeat Off  Cool Auto OnFan
SetHold
Run
Quick reference to controls
Temperature adjustment (see page 13-14)
Screen Lit for 12 seconds when you press any button.
Fan Switch (see page 8)On: Fan runs continuously.Auto: Fan runs only when heating or cooling system is on.
Set: Press to set time/day/schedule.
Hold: Press to override programmed tempera-ture control.
Run: Press to resume program schedule.
System switch (see page 7)•	Heat: Heating...

RT H 2 510 / RT H 2410
 5 69-2725ES—01
M32701
We
LoBatt
Wake
Setam
Heat
75
On   
6:
30
Quick reference to display screen
Low battery warning (see page 18)Setpoint indicator Appears when the setpoint temperature is displayed.
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 system is on. Heat on: Heating system is on. Aux On:...

Operating Manual
69-2725ES—01 6
Set Time
am6:
30
M33598
Set
Hold
Run
SetD ay
We 
M33599
Set
Hold
Run
Set the time and day
1.   Press the SET button, then press s or t 
to set the clock time.
2.  Press the SET button, then press s or t 
to select the day of the week.
3. Press RUN to save & exit.
Note: If the clock flashes, the thermostat will follow your settings for the Monday “Wake” time period until you reset the time and day.
Press SET, then adjust time.
Press SET, then select current day. 

RT H 2 510 / RT H 2410
 7 69-2725ES—01
M33612Heat  Off  CoolAuto  OnFanHeat Off  Cool Auto OnFan
Set
Hold
Run
Select the system setting
The SYSTEM switch can be set to control 
your heating or cooling system, depending 
on the season.
•	Cool: Cooling system control.
•	Off:  All systems are off.
•	Heat: Heating system control.
Set SYSTEM switch to control the heating or cooling system.
CAUTION: EQUIPMENT DAMAGE HAZARD. To prevent possible compressor damage, do not operate cooling system when outdoor...

Operating Manual
69-2725ES—01 8
Select the fan setting
Set the FAN switch to Auto or On.
In “Auto” mode (the most commonly used 
setting), the fan runs only when the heating 
or cooling system is on.
If	set	 to	“On,” 	the	 fan	runs	 continuously.
Set FAN switch to choose whether the fan runs continuously or only as needed.
M33612Heat  Off  CoolAuto  OnFanHeat Off  Cool Auto OnFan
Set
Hold
Run