9
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
Description
Press the s or t button to Setting
5 select your heating system
and optimize its operation
5
G
as 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
H
eat pump, 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
G
as/oil steam or gravity system: Use this setting if
you have a steam or gravity heat system.
14 select Fahrenheit or Celsius
temperature display
0 Fahrenheit temperature display (°F)
1 Celsius temperature display (°C)
15* select Compressor
Protection settings
1 On
0 Off
20 select clock display 0 12-hour display
1 24-hour display
21
(RTH2300
only)
select Change Filter Timer 0
Of
f
1 30 days
2 90 days
3
6 months
4
9 months
5
1 year
40
(RTH2300
only)
restore program schedule to
default settings
0 Off
1
On: Program schedule default settings are listed on
page 11.
*
Compressor Protection: This feature forces the compressor to wait approximately 5 minutes
before restarting, to prevent equipment damage. During the wait time, the message “Cool On” or
“Heat On” flashes on screen.
About your new thermostat
Your new thermostat has been designed to give you many years of reliable
service and easy-to-use, push-button climate control.
• Backlit display on RTH2300
• Displays ambient (measured) temperature at all times
• One-touch access to setpoint temperature
• Preset program settings
• Temporary and permanent override of schedule
• Built-in compressor protection
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