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
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 heating/cooling system (see page 7). Your new thermostat has been designed for fast, easy installation. ... new thermostat to go before ! Installation tips • Have everything you 've never done it before you begin (see pages 3-4). • Do not use wire color as a guide. Use wire labels instead (see pages 15-18). Installation Guide Installation is easy -
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 heating/cooling system (see page 7). Your new thermostat has been designed for fast, easy installation. ... new thermostat to go before ! Installation tips • Have everything you 've never done it before you begin (see pages 3-4). • Do not use wire color as a guide. Use wire labels instead (see pages 15-18). Installation Guide Installation is easy -
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
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Remove your old thermostat 1. RTH3100C Leave wallplate in place. Old thermostat Cover If so, see inside front cover of this manual for proper disposal instructions. Is there a sealed tube containing mercury? Remove cover and thermostat, but leave wallplate with wires attached. Turn off power at heating/cooling system (or fuse/circuit-breaker panel). 2.
Remove your old thermostat 1. RTH3100C Leave wallplate in place. Old thermostat Cover If so, see inside front cover of this manual for proper disposal instructions. Is there a sealed tube containing mercury? Remove cover and thermostat, but leave wallplate with wires attached. Turn off power at heating/cooling system (or fuse/circuit-breaker panel). 2.
Owner's Manual
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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
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RTH3100C Label wires and remove old wallplate Use a screwdriver to identify wire types. Aux O E IGNORE WIRE COLORS: Use only letter designations to disconnect wires one by one. Be careful not to let loose wires fall into the wall opening ! 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. Do not let wires fall into wall opening . As you disconnect each wire.
RTH3100C Label wires and remove old wallplate Use a screwdriver to identify wire types. Aux O E IGNORE WIRE COLORS: Use only letter designations to disconnect wires one by one. Be careful not to let loose wires fall into the wall opening ! 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. Do not let wires fall into wall opening . As you disconnect each wire.
Owner's Manual
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RTH3100C 3. Level wallplate if desired (lay level across tabs). Mark positions of both screw holes. AMbaoruktwyaolulprlanteewmthoeurnmtinosgtaptosition 1. Pull wires through wallplate. 2.
RTH3100C 3. Level wallplate if desired (lay level across tabs). Mark positions of both screw holes. AMbaoruktwyaolulprlanteewmthoeurnmtinosgtaptosition 1. Pull wires through wallplate. 2.
Owner's Manual
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Labels don't match? Match each labeled wire with same letter on thermostat, see next page. 11 RTH3100C Push any excess wire back into the wall opening. 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? Match each labeled wire with same letter on thermostat, see next page. 11 RTH3100C Push any excess wire back into the wall opening. 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.
Owner's Manual
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... 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 letters, check the chart at...-468-1502 for help . 4 3 3 2 E Aux Y G O or or or or X W Y1 F X2 W1 M W2 If the 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 If the old thermostat had both V and VR...
... 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 letters, check the chart at...-468-1502 for help . 4 3 3 2 E Aux Y G O or or or or X W Y1 F X2 W1 M W2 If the 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 If the old thermostat had both V and VR...
Owner's Manual
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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. 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 Installation Guide Mount thermostat and restore electrical power 1.
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. 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 Installation Guide Mount thermostat and restore electrical power 1.