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
...cooling system (see page 7). 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 8-14). • Set your new thermostat to go before ! Install in the following ...pages. Installation Guide Installation is easy - Your new thermostat has been designed for fast, easy installation. Use wire labels instead (see pages 15-18). Installation tips • Have everything you begin (see pages 3-4). • Do not use...
...cooling system (see page 7). 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 8-14). • Set your new thermostat to go before ! Install in the following ...pages. Installation Guide Installation is easy - Your new thermostat has been designed for fast, easy installation. Use wire labels instead (see pages 15-18). Installation tips • Have everything you begin (see pages 3-4). • Do not use...
Owner's Manual
Page 5
APrbeo-uintsytoaullratnieown cthercmkloissttat Check to make sure your package includes the following items: RTH3100C RTH3100C thermostat (wallplate attached to back) Operating Manual Wall anchors and mounting screws (2 each) Wire Labels
APrbeo-uintsytoaullratnieown cthercmkloissttat Check to make sure your package includes the following items: RTH3100C RTH3100C thermostat (wallplate attached to back) Operating Manual Wall anchors and mounting screws (2 each) Wire Labels
Owner's Manual
Page 7
RTH3100C Leave wallplate in place. Old thermostat Cover Turn off power at heating/cooling system (or fuse/circuit-breaker panel). 2. If so, see inside front cover of this manual for proper disposal instructions. Is there a sealed tube containing mercury? Remove your old thermostat 1. Remove cover and thermostat, but leave wallplate with wires attached.
RTH3100C Leave wallplate in place. Old thermostat Cover Turn off power at heating/cooling system (or fuse/circuit-breaker panel). 2. If so, see inside front cover of this manual for proper disposal instructions. Is there a sealed tube containing mercury? Remove your old thermostat 1. Remove cover and thermostat, but leave wallplate with wires attached.
Owner's Manual
Page 8
Installation Guide Identify wires you will not use unconnected wires. Wrap the bare metal ends of each unused wire with electrical tape, so it cannot touch and short out other wires. Do not use If any wires are not attached to terminals in your old thermostat, do not connect them to your new thermostat.
Installation Guide Identify wires you will not use unconnected wires. Wrap the bare metal ends of each unused wire with electrical tape, so it cannot touch and short out other wires. Do not use If any wires are not attached to terminals in your old thermostat, do not connect them to your new thermostat.
Owner's Manual
Page 9
E IGNORE WIRE COLORS: Use only letter designations to disconnect wires one by one. Do not let wires fall into wall opening . As you disconnect each wire. Wrap supplied labels securely around each wire, wrap it with the label matching the letter on your old thermostat. (Adhesive labels are supplied in your thermostat package.) Remove the old wallplate only after all wires are labeled. RTH3100C Label wires and remove old wallplate Use a screwdriver to identify wire types. Aux O Be careful not to let loose wires fall into the wall opening !
E IGNORE WIRE COLORS: Use only letter designations to disconnect wires one by one. Do not let wires fall into wall opening . As you disconnect each wire. Wrap supplied labels securely around each wire, wrap it with the label matching the letter on your old thermostat. (Adhesive labels are supplied in your thermostat package.) Remove the old wallplate only after all wires are labeled. RTH3100C Label wires and remove old wallplate Use a screwdriver to identify wire types. Aux O Be careful not to let loose wires fall into the wall opening !
Owner's Manual
Page 11
Mark positions of both screw holes. AMbaoruktwyaolulprlanteewmthoeurnmtinosgtaptosition 1. Level wallplate if desired (lay level across tabs). RTH3100C 3. Pull wires through wallplate. 2.
Mark positions of both screw holes. AMbaoruktwyaolulprlanteewmthoeurnmtinosgtaptosition 1. Level wallplate if desired (lay level across tabs). RTH3100C 3. Pull wires through wallplate. 2.
Owner's Manual
Page 13
If labels do not match letters on terminal. 2. Connect wires (typical installation) 1. Use a screwdriver to loosen screw terminals, insert wires, then tighten screws. 3. Labels don't match? Push any excess wire back into the wall opening. Match each labeled wire with same letter on thermostat, see next page. 11 RTH3100C
If labels do not match letters on terminal. 2. Connect wires (typical installation) 1. Use a screwdriver to loosen screw terminals, insert wires, then tighten screws. 3. Labels don't match? Push any excess wire back into the wall opening. Match each labeled wire with same letter on thermostat, see next page. 11 RTH3100C
Owner's Manual
Page 14
... old thermostat had both O and B wires, attach the B wire to connect terminals E and Aux. 1 2 2 LR B C or or or or FV H B VR X LRBC 12 E Aux Y G O If no wire matches the E terminal on the new thermostat, use a small piece of wire to the C terminal. If the old... thermostat had W1, W2 and Y wires, contact a heating/ cooling contractor for help . Installation Guide Connect wires (less common wire designations) If labels do not match thermostat...
... old thermostat had both O and B wires, attach the B wire to connect terminals E and Aux. 1 2 2 LR B C or or or or FV H B VR X LRBC 12 E Aux Y G O If no wire matches the E terminal on the new thermostat, use a small piece of wire to the C terminal. If the old... thermostat had W1, W2 and Y wires, contact a heating/ cooling contractor for help . Installation Guide Connect wires (less common wire designations) If labels do not match thermostat...
Owner's Manual
Page 16
Restore electrical power at the heating/cooling system, or at the fuse/circuit-breaker panel. TIP: If wires interfere when you try to mount the thermostat, push excess wire back into place. 2. Installation Guide Mount thermostat and restore electrical power 1. Wallplate Thermostat 14 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.
Restore electrical power at the heating/cooling system, or at the fuse/circuit-breaker panel. TIP: If wires interfere when you try to mount the thermostat, push excess wire back into place. 2. Installation Guide Mount thermostat and restore electrical power 1. Wallplate Thermostat 14 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.
