Owner's Manual
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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
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...if you begin (see pages 8-14). • Set your new thermostat to go before you 've never done it before! Installation Guide Installation is easy - Install in the following pages. Use wire labels instead (see pages 15-18). Just follow the simple, step-by-step instructions in ...three simple steps • Label wires and remove your old thermostat (see pages 5-7). • Install and wire your new thermostat (see pages 3-4). • Do not use wire color as a guide. Installation tips • Have everything you need ready to match your heating/cooling system (see page 7). ...
...if you begin (see pages 8-14). • Set your new thermostat to go before you 've never done it before! Installation Guide Installation is easy - Install in the following pages. Use wire labels instead (see pages 15-18). Just follow the simple, step-by-step instructions in ...three simple steps • Label wires and remove your old thermostat (see pages 5-7). • Install and wire your new thermostat (see pages 3-4). • Do not use wire color as a guide. Installation tips • Have everything you need ready to match your heating/cooling system (see page 7). ...
Owner's Manual
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Installation Guide Pre-installation checklist Required tools & supplies • No. 2 Phillips screwdriver • Small pocket screwdriver • Drill • Drill bit (3/16" for drywall, 7/32" for plaster) • Hammer • Pencil • Electrical tape • Level (optional) • Two fresh AA alkaline batteries
Installation Guide Pre-installation checklist Required tools & supplies • No. 2 Phillips screwdriver • Small pocket screwdriver • Drill • Drill bit (3/16" for drywall, 7/32" for plaster) • Hammer • Pencil • Electrical tape • Level (optional) • Two fresh AA alkaline batteries
Owner's Manual
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Do not use If any wires are not attached to terminals in your old thermostat, do not connect them to your new thermostat. Wrap the bare metal ends of each unused wire with electrical tape, so it cannot touch and short out other wires. Installation Guide Identify wires you will not use unconnected wires.
Do not use If any wires are not attached to terminals in your old thermostat, do not connect them to your new thermostat. Wrap the bare metal ends of each unused wire with electrical tape, so it cannot touch and short out other wires. Installation Guide Identify wires you will not use unconnected wires.
Owner's Manual
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HIPS PULL HERE Wallplate Installation Guide Remove wallplate Pull at bottom to remove thermostat from wallplate.
HIPS PULL HERE Wallplate Installation Guide Remove wallplate Pull at bottom to remove thermostat from wallplate.
Owner's Manual
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Use hammer to tap anchors into holes until flush with wall. 3. Place wallplate over anchors and insert screws. Installation Guide Mount wallplate 1. Check level if desired, then tighten screws. 10 Drill holes at pencil-marked locations: 3/16" holes for drywall 7/32" holes for plaster 2.
Use hammer to tap anchors into holes until flush with wall. 3. Place wallplate over anchors and insert screws. Installation Guide Mount wallplate 1. Check level if desired, then tighten screws. 10 Drill holes at pencil-marked locations: 3/16" holes for drywall 7/32" holes for plaster 2.
Owner's Manual
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Push any excess wire back into the wall opening. Match each labeled wire with same letter on thermostat, see next page. 11 RTH3100C Labels don't match? Connect wires (typical installation) 1. If labels do not match letters on terminal. 2. Use a screwdriver to loosen screw terminals, insert wires, then tighten screws. 3.
Push any excess wire back into the wall opening. Match each labeled wire with same letter on thermostat, see next page. 11 RTH3100C Labels don't match? Connect wires (typical installation) 1. If labels do not match letters on terminal. 2. Use a screwdriver to loosen screw terminals, insert wires, then tighten screws. 3.
Owner's Manual
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... had W1, W2 and Y wires, contact a heating/ cooling contractor for help . If the old thermostat had both O and B wires, attach the B wire to the C terminal. Installation Guide Connect wires (less common wire designations) If labels do not match thermostat letters, check the chart at right (see notes, below). If the old...
... had W1, W2 and Y wires, contact a heating/ cooling contractor for help . If the old thermostat had both O and B wires, attach the B wire to the C terminal. Installation Guide Connect wires (less common wire designations) If labels do not match thermostat letters, check the chart at right (see notes, below). If the old...
Owner's Manual
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RTH3100C Back of thermostat. Install batteries Install two fresh AA alkaline batteries in back of thermostat 13
RTH3100C Back of thermostat. Install batteries Install two fresh AA alkaline batteries in back of thermostat 13
Owner's Manual
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Align the 4 tabs on the wallplate with corresponding slots on the back of the thermostat, then push gently until the thermostat snaps into the wall opening. Wallplate Thermostat 14 Restore electrical power at the heating/cooling system, or at the fuse/circuit-breaker panel. Installation Guide Mount thermostat and restore electrical power 1. TIP: If wires interfere when you try to mount the thermostat, push excess wire back into place. 2.
Align the 4 tabs on the wallplate with corresponding slots on the back of the thermostat, then push gently until the thermostat snaps into the wall opening. Wallplate Thermostat 14 Restore electrical power at the heating/cooling system, or at the fuse/circuit-breaker panel. Installation Guide Mount thermostat and restore electrical power 1. TIP: If wires interfere when you try to mount the thermostat, push excess wire back into place. 2.
Owner's Manual
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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. Installation Guide Function 6: Auxiliary heat cycle rate Setup 65 Press to the next function. 16
Owner's Manual
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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 When finished, press and hold both buttons to change setting.
Owner's Manual
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In case of difficulty RTH3100C If you have difficulty with your thermostat, please try the following suggestions. Make sure the temperature is set higher than the Inside temperature. • Check ... . • Wait 5 minutes for the system to Heat. Make sure the temperature is securely closed securely. • Make sure fresh AA alkaline batteries are correctly installed (see page 13). Heating or cooling system does not respond • Set system switch to respond. 19 Display is blank • Check circuit breaker and...
In case of difficulty RTH3100C If you have difficulty with your thermostat, please try the following suggestions. Make sure the temperature is set higher than the Inside temperature. • Check ... . • Wait 5 minutes for the system to Heat. Make sure the temperature is securely closed securely. • Make sure fresh AA alkaline batteries are correctly installed (see page 13). Heating or cooling system does not respond • Set system switch to respond. 19 Display is blank • Check circuit breaker and...
Owner's Manual
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... the System switch to Heat, and set the temperature level below the current room temperature. 20 "Heat On" is not displayed "Cool On" is engaged. Installation Guide In case of difficulty Temperature settings do not change Make sure heating and cooling temperatures are set to acceptable ranges: • Heat: 40°...
... the System switch to Heat, and set the temperature level below the current room temperature. 20 "Heat On" is not displayed "Cool On" is engaged. Installation Guide In case of difficulty Temperature settings do not change Make sure heating and cooling temperatures are set to acceptable ranges: • Heat: 40°...
Owner's Manual
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...from which occurred while the product was caused by the consumer. This warranty shall not apply if it is determined to be defective or malfunctions, Honeywell shall repair or replace it , with a bill of sale or other dated proof of purchase, to the place from the date of purchase... by damage which you . HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, 22 If the product is defective, (i) return it (at 1-800-468-1502. Installation Guide 1-year limited warranty Honeywell warrants this product, excluding battery, to be free from defects...
...from which occurred while the product was caused by the consumer. This warranty shall not apply if it is determined to be defective or malfunctions, Honeywell shall repair or replace it , with a bill of sale or other dated proof of purchase, to the place from the date of purchase... by damage which you . HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, 22 If the product is defective, (i) return it (at 1-800-468-1502. Installation Guide 1-year limited warranty Honeywell warrants this product, excluding battery, to be free from defects...