Categories: Honeywell

Honeywell RTH3100C Non-Programmable Digital Thermostat Installation Guide

Installation
Guide
This is a legacy product document supported by Resideo. It is no longer manufactured
RTH3100C
Non-Programmable Digital Thermostat

CAUTION: ELECTRICAL HAZARD
Turn off power at the furnace or the fuse/circuit breaker panel before you begin.

MERCURY NOTICE
If this product is replacing a control that contains mercury in a sealed tube, do not place the old control in the trash. Contact your local waste management authority for instructions regarding recycling and proper disposal.

Need Help?
For assistance with this product please visit http://yourhome.honeywell.com

or call Honeywell Customer Care toll-free at 1-800-468-1502

Read and save these instructions.
® U.S. Registered Trademark. Patents pending.
Copyright © 2006 Honeywell International Inc.
All rights reserved.

Installation is easy — even if you’ve never done it before!
Your new thermostat has been designed for fast, easy installation. Just follow the simple, step-by-step instructions on the following pages.

Install 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 match your heating/cooling system (see pages 15-18).

Installation tips

  • Have everything you need ready to go before you begin (see pages 3-4).
  • Do not use wire color as a guide. Use wire labels instead (see page 7).

Pre-installation checklist

Check to make sure your package includes the following items:

  • 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

Remove your old thermostat

  1. Turn off power at the heating/cooling system (or fuse/circuit-breaker panel).
  2. Remove cover and thermostat, but leave wallplate with wires attached.

Identify wires you will 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.

Label wires and remove old wallplate

Use a screwdriver to disconnect wires one by one. As you disconnect 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. Be careful not to let loose wires fall into the wall opening.

IGNORE WIRE COLORS:
Use only letter designations to identify wire types.

Remove wallplate

Mark wallplate mounting position

Mount wallplate

Connect wires (typical installation)

Labels don’t match?
If labels do not match letters on the thermostat, see the next page.

Connect wires (less common wire designations)

If labels do not match thermostat letters, check the chart on the right (see notes, below).

  1. If the old thermostat had both V and VR wires, contact a heating/ cooling contractor for help.
  2. If the old thermostat had both O and B wires, attach the B wire to the C terminal. If another wire is attached to the C terminal, call 1-800-468-1502 for help.
  3. If the old thermostat had W1, W2, and Y wires, contact a heating/ cooling contractor for help.
  4. If no wire matches the E terminal on the new thermostat, use a small piece of wire to connect terminals E and Aux.

Install batteries

Mount thermostat and restore electrical power

  1. Align the 4 tabs on the wallplate with corresponding slots on the back of the thermostat, then push gently until the thermostat snaps into place.
  2. 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 the excess wire back into the wall opening.

System setup (set thermostat to match your system)

Next, you must set the thermostat to control the heating and cooling system in your home. Press and hold the and buttons to enter the system setup.

Function 6: Auxiliary heat cycle rate

Press the button to select your auxiliary the heating system and optimize its operation:

Function 8: Emergency heat cycle rate

Press the button to select your emergency heating system and optimize its operation:

Function 14: Temperature display

Press the button to select Fahrenheit or Celsius temperature display:

In case of difficulty

If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.

Display is blank

  • Check the circuit breaker and reset it if necessary.
  • Make sure the power switch at the heating & cooling system is on.
  • Make sure the furnace door is 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 Heat. Make sure the temperature is set higher than the Inside temperature.
  • Set system switch to Cool. Make sure the temperature is set lower than the Inside temperature.
  • Check the circuit breaker and reset it if necessary.
  • Make sure heating & cooling power switches are on.
  • Make sure the furnace door is securely closed.
  • Wait 5 minutes for the system to respond.

Temperature settings do not change

Make sure heating and cooling temperatures are set to acceptable ranges:

  • Heat: 40° to 90°F (4.5° to 32°C).
  • Cool: 50° to 99°F (10° to 37°C).

“Cool On” or “Heat On” is  flashing

  • Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor.

“Heat On” is not displayed

  • Set the System switch to Heat, and set the temperature level above the current room temperature.

“Cool On” is not displayed

  • Set the System switch to Cool, and set the temperature level below the current room temperature.

Customer assistance

For assistance with this product, please visit http://yourhome.honeywell.com. Or call Honeywell Customer Care toll-free at 1-800-468-1502.
To save time, please note your model number and date code before calling.

Accessories/replacement parts
To order, please call Honeywell Customer Care toll-free at 1-800-468-1502.

Cover plate* ……….. Part No. 50002883-001 *Use to cover marks left by old thermostats.

1-year limited warranty

Honeywell warrants this product, excluding battery, to be free from defects in the artistry or materials, under normal use and service, for a period of one
(1) year from the date of purchase by the consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option). If the product is defective, (i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
(ii) call Honeywell Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage that occurred while the product was in the possession of a consumer.

Honeywell’s sole responsibility shall be to repair or replace the product within the above terms. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.

THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE-YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.

This warranty gives you specific legal rights, and you may have other rights which vary from state to state.

If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr., Golden Valley, MN 55422 or call 1-800-468-1502. In Canada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V4Z9.

Automation and Control Systems
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422 http://yourhome.honeywell.com
Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers.
® U.S. Registered Trademark.
© 2006 Honeywell International Inc.
69-1891ES-1 M.S. Rev. 04-06
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario M1V 4Z9

Documents / Resources

Honeywell RTH3100C Non-Programmable Digital Thermostat [pdf] Installation Guide
RTH3100C, Non-Programmable Digital Thermostat, Digital Thermostat
Honeywell RTH3100C Non-Programmable Digital Thermostat [pdf] Installation Guide
RTH3100C, Non-Programmable Digital Thermostat
Honeywell RTH3100C Non-Programmable Digital Thermostat [pdf] User Manual
RTH3100C, Non-Programmable Digital Thermostat

References

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