Owner's Manual
Page 3
Table of contents Getting started Installation tips 2 Pre-installation checklist 3 Old thermostat removal Remove old thermostat 5 Identify and label wires 6 New thermostat installation Wallplate mounting 8 Wire connections 11 Battery installation 13 Thermostat mounting 14 RTH3100C System setup How to change settings 15 Set auxiliary heat cycle rate 16 Set emergency heat cycle rate 17 Set temperature display 18 Appendices In case of difficulty 19 Customer assistance 21 Accessories 21 1-year limited warranty 22
Table of contents Getting started Installation tips 2 Pre-installation checklist 3 Old thermostat removal Remove old thermostat 5 Identify and label wires 6 New thermostat installation Wallplate mounting 8 Wire connections 11 Battery installation 13 Thermostat mounting 14 RTH3100C System setup How to change settings 15 Set auxiliary heat cycle rate 16 Set emergency heat cycle rate 17 Set temperature display 18 Appendices In case of difficulty 19 Customer assistance 21 Accessories 21 1-year limited warranty 22
Owner's Manual
Page 4
... in three simple steps • Label wires and remove your old thermostat (see pages 5-7). • Install and wire your new thermostat (see pages 8-14). • Set your heating/cooling system (see page 7). Install in the following pages. Use wire labels instead (see pages 15-18). even if you begin (see pages...
... in three simple steps • Label wires and remove your old thermostat (see pages 5-7). • Install and wire your new thermostat (see pages 8-14). • Set your heating/cooling system (see page 7). Install in the following pages. Use wire labels instead (see pages 15-18). even if you begin (see pages...
Owner's Manual
Page 17
Press s to advance to exit and save settings. 15 Press and hold ts to next function. Press and hold the s and t buttons until the display changes. Function number 6 Setting Setup 5 To begin, press and hold the s and t buttons to control the heating and cooling system in your home. RTH3100C System setup (set thermostat to match your system) Next, you must set the thermostat to enter system setup. Press t to change settings.
Press s to advance to exit and save settings. 15 Press and hold ts to next function. Press and hold the s and t buttons until the display changes. Function number 6 Setting Setup 5 To begin, press and hold the s and t buttons to control the heating and cooling system in your home. RTH3100C System setup (set thermostat to match your system) Next, you must set the thermostat to enter system setup. Press t to change settings.
Owner's Manual
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Installation Guide Function 6: Auxiliary heat cycle rate Setup 65 Press to the next function. 16 Press the t button to select your auxiliary heating system and optimize its operation: 5 For gas or oil furnaces of less than 90% efficiency 1 For steam or gravity systems 3 For hot water systems & furnaces of over 90% efficiency 9 For electric furnaces When finished, press to advance to change setting.
Installation Guide Function 6: Auxiliary heat cycle rate Setup 65 Press to the next function. 16 Press the t button to select your auxiliary heating system and optimize its operation: 5 For gas or oil furnaces of less than 90% efficiency 1 For steam or gravity systems 3 For hot water systems & furnaces of over 90% efficiency 9 For electric furnaces When finished, press to advance to change setting.
Owner's Manual
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Press the t button to select your emergency heating system and optimize its operation: 9 For electric furnaces 1 For steam or gravity systems 3 For hot water systems & furnaces of over 90% efficiency 5 For gas or oil furnaces of less than 90% efficiency When finished, press to advance to change setting. RTH3100C Function 8: Emergency heat cycle rate Setup 89 Press to the next function. 17
Press the t button to select your emergency heating system and optimize its operation: 9 For electric furnaces 1 For steam or gravity systems 3 For hot water systems & furnaces of over 90% efficiency 5 For gas or oil furnaces of less than 90% efficiency When finished, press to advance to change setting. RTH3100C Function 8: Emergency heat cycle rate Setup 89 Press to the next function. 17
Owner's Manual
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When finished, press and hold both buttons to change setting. Installation Guide Function 14: Temperature display Setup 14 0 Press the t button to select Fahrenheit or Celsius temperature display: 0 Fahrenheit temperature display (°F) 1 Celsius temperature display (°C) Press to exit and save changes. 18
When finished, press and hold both buttons to change setting. Installation Guide Function 14: Temperature display Setup 14 0 Press the t button to select Fahrenheit or Celsius temperature display: 0 Fahrenheit temperature display (°F) 1 Celsius temperature display (°C) Press to exit and save changes. 18
Owner's Manual
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In case of difficulty RTH3100C If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily. Make sure the temperature is set higher than the Inside temperature. • Set system switch to Cool. Make sure the temperature is ... and reset if necessary. • Make sure power switch at heating & cooling system is on . • Make sure furnace door is set lower than the Inside temperature. • Check circuit breaker and reset if necessary. • Make sure heating & cooling power switches are correctly...
In case of difficulty RTH3100C If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily. Make sure the temperature is set higher than the Inside temperature. • Set system switch to Cool. Make sure the temperature is ... and reset if necessary. • Make sure power switch at heating & cooling system is on . • Make sure furnace door is set lower than the Inside temperature. • Check circuit breaker and reset if necessary. • Make sure heating & cooling power switches are correctly...
Owner's Manual
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..."Heat On" is flashing • Compressor protection feature is not displayed • Set the System switch to Heat, and set the temperature level above the current room temperature. • Set the System switch to Cool, and set to acceptable ranges: • Heat: 40° to 90°F (4.5° ...for the system to restart safely, without damage to 37°C). Installation Guide In case of difficulty Temperature settings do not change Make sure heating and cooling temperatures are set the temperature level below the current room temperature. 20 "Heat On" is not displayed "Cool On"...
..."Heat On" is flashing • Compressor protection feature is not displayed • Set the System switch to Heat, and set the temperature level above the current room temperature. • Set the System switch to Cool, and set to acceptable ranges: • Heat: 40° to 90°F (4.5° ...for the system to restart safely, without damage to 37°C). Installation Guide In case of difficulty Temperature settings do not change Make sure heating and cooling temperatures are set the temperature level below the current room temperature. 20 "Heat On" is not displayed "Cool On"...