Pentax RTH2410B1019, RTH2510B1018 Quick Installation Guide
Quick Installation Guide
69-2726ES-01
RTH2510/RTH2410 Series
Programmable Thermostat
Identify System Type
This thermostat is compatible with the following systems:
Gas, oil or electric furnace
Central air conditioner
Hot water system with or without pump
Millivolt system
Central heating and cooling system
Heat pump without auxiliary/backup heat
Heat pump with auxiliary/backup heat
Do you need assistance?
We are here to help.
Call 1-800-468-1502 for wiring
assistance before returning
the thermostat to the store.
This thermostat cannot be used on multistage systems.
69- 2726ES— 01 ii
Turn Off Power to Heating/
1
Cooling System
OFF
or
1 69-2726ES—01
Remove Old Thermostat
2
Remove old thermostat but leave wallplate with
wires attached.
Do not remove
wallplate yet
Is there a sealed tube containing
mercury? If so, see back cover for
proper disposal instructions.
Old thermostat
69- 2726ES— 01 2
EM. HEATAUX. HEAT
50 60 70 80
50 60 70 80 F
AUTO EM. HEAT
Cover
OFF
M33835
Label Wires with Tags
3
Label the wires using the supplied wire labels as you
disconnect them.
Wire Labels
3 69-2726ES—01
M28100
M33763
Separate Wallplate from
4
New Thermostat
Remove wallplate from the new thermostat and mount onto
wall.
TO REMOVE WALLPLATE
PULL HERE
M32731
Wallplate
69- 2726ES— 01 4
Mount Wallplate
5
Mount the new wallplate using the included screws
and anchors.
Not
W/
Used
Aux
Drill 3/16-in. holes for drywall
Drill 3/32-in. holes for plaster
M32714
5 69-2726ES—01
Connect Wires
6
Simply match wire labels.
INSERT WIRES
AND TIGHTEN
SCREWS
WIRE
HOLE
LABELED
G
Y
W
WIRES
R
SCREW
Aux
Not
W/
Used
M32715
Remove metal jumper if you have both R and Rc wires.
Labels don’t match? See page 22.
Have a Heat Pump system? See page 23.
We are here to help.
Call 1-800-468-1502 for wiring assistance.
69- 2726ES— 01 6
Install Batteries
7
Install two AAA alkaline batteries.
RTHXXXX
Back of thermostat
M32707
7 69-2726ES—01
Set fan operation switch
8
Move the switch to the proper setting:
Gas or Oil: For gas or oil heating systems, leave the fan
operation switch in this factory-set position (for systems that
control the fan in a call for heat).
Electric or Heat Pump: Change the switch to this setting
for heat pump or electric heat systems. (This setting is for
systems that allow the thermostat to control the fan in a call
for heat, if a fan wire is connected to the G terminal.)
RTHXXXX
GAS OR OIL
ELECTRIC OR HEAT PUMP
GAS OR OIL
ELECTRIC OR HEAT PUMP
M32716
69- 2726ES— 01 8
Install Thermostat onto Wallplate
9
Install thermostat onto the wallplate on the wall.
Not
W/
Used
Aux
Set
Hold
Run
Fan
Fan
Fan
Heat Off Cool
Heat Off Cool
Heat Off Cool Auto On
Heat Off Cool Auto On
Fan
Auto On
Auto On
M33592
9 69-2726ES—01
10
Turn the power back on to the heating/cooling system.
Turn Power Back On
ON
or
69- 2726ES— 01 10
11
If your system type is...
If your system type is:
q Single Stage Heat and Cool
q Heat Only or Cool Only
Congratulations, you’re done!
If your system type is:
q Heat Pump* with Backup Heat
Continue with advanced installation
on next page to match your thermostat to your system
type.
*Heat Pump—an air conditioner that provides cooling in the
summer, and also runs in reverse in the winter to provide
heating.
If you are not sure of your system type or if you have
other questions, call us toll-free at 1-800-468-1502.
This thermostat works on 24 volt or 750 mV systems. It will
NOT work on multi-stage conventional systems or 120/240
Volt systems.
11 69-2726ES—01
Advanced Installation
Enter system setup ..............................................................13
Changing settings ................................................................14
System type .........................................................................15
Heating cycle rate ................................................................16
Early start ............................................................................ 17
Temperature display ............................................................18
Compressor protection ........................................................19
Clock display .......................................................................20
Restore program schedule default ......................................21
Wiring conventional system .................................................22
Wiring heat pump ................................................................23
Troubleshooting ...................................................................25
Customer assistance ...........................................................26
Limited warranty ..................................................................27
RT H2510/R TH 2410
System setup
Enter System Setup
To enter system setup, press and hold both the s and
t buttons until the display changes (approximately 5
seconds).
Set
Hold
Run
Fan
Heat Off Cool
Heat Off Cool Auto On
Auto On
Fan
M33593
SETUP WIRING ASSISTANCE TROUBLESHOOTING
13 69-2726ES—01
Advanced Installation Guide
System setup
Changing Settings
See pages 15–21 to change Function Settings.
SETUPWIRINGASSISTANCETROUBLESHOOTING
Set
Hold
Run
Change Function Change Setting
1. Press the s or t button to change the setting.
2. Press the s and t buttons simultaneously for one
second to advance to the next function.
3. Press the Run button to exit and save settings.
NOTE: If you do not press any button for 60 seconds while
you are in the setup menu, the thermostat automatically
saves any changes made and exits the menu.
Function Setting
0
1
M33594
69- 2726ES— 01 14
System setup
RT H2510/R TH 2410
Function 1: System Type
0
1
M32718
0 Heating & cooling: Gas, oil or electric heating with
central air conditioning or heat pump without auxiliary/
back-up heat.
1 Heat pump with auxiliary/backup heat: Outside
compressor provides both heating and cooling.
Press the s or t button to select the type of Heat/Cool
system you have in your home.
OR
Press to
change
setting.
AND
When finished,
press s and t
to advance to the
next function.
SETUP WIRING ASSISTANCE TROUBLESHOOTING
M33591
15 69-2726ES—01
Advanced Installation Guide
System setup
Function 5: Heating cycle rate
SETUPWIRINGASSISTANCETROUBLESHOOTING
5
5
M32720
5 Gas or oil furnace: Use this setting if you have a
standard gas or oil furnace that is less than 90%
efficient.
6 Electric furnace: Use this setting if you have any type
of electric heating system.
3 Hot water or high-efficiency furnace: Use this
setting if you have a hot water system or a gas furnace
of greater than 90% efficiency.
2 Gas/oil steam or gravity system: Use this setting if
you have a steam or gravity heat system.
Press the s or t button to select your heating system
and optimize its operation.
Press to
change
OR
69- 2726ES— 01 16
setting.
AND
When finished,
press s and t
to advance to the
next function.
M33591
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