Honeywell RTH1100 Non-Programmable Thermostat Installation Guide

Honeywell RTH1100 Non-Programmable Thermostat

This is a legacy product document supported by Resideo. It is no longer manufactured

Identify System TypeThis thermostat is compatible with the following systems:

  • Gas, oil or electric furnace
  • Central air conditioner
  • Hot water system with or without pump
  • Millivolt system
  • Central heating and cooling system
  • Gas fireplace

Do you need assistance?We are here to help.Call 1-800-468-1502.

This thermostat works on 24-volt or 750-mV systems. It will NOT work on heat pump systems, multistage systems or 120/240-volt systems.

Turn Off Power to Heating/Cooling System

Remove Old ThermostatRemove old thermostat but leave wallplate with wires attached.

Identify WiresIf any wires are not attached to your old thermostat or are attached to a terminal marked C or C1, they will not be connected to your new thermostat. Wrap the bare metal end of each of these wires with electrical tape, so it cannot touch and short other wires.

Disconnect wires and remove the old wallplate only after all wires are labeled. Wrap the wires around a pencil to prevent them from falling though the wall opening.

Separate Wallplate from New ThermostatMount the new wallplate using the included screws and anchors.

  1. Remove cover plate.
  2. Loosen screw (the screw remains captive on wallplate).
  3. Remove thermostat.

Mount Wallplate

  1. Mark and drill appropriate mounting holes.
  2. Insert Plastic anchors.
  3. Pass wires through opening of wallplate and secure wallplate to the wall using provided screws.

Connect Wires (typical wiring)

  1. Match each labeled wire with the terminal having the same letter.
  2. Loosen the terminal screws using a screwdriver, insert the wires, then lighten the screws.
  3. Push any excess wire back into the wall opening.

Connect Wires (alternate wiring)

If labeled wire does not match any terminal designation, see diagram below.

  1. Do not use C, X or B. Wrap bare end of wire with electrical tape.
  2. If wires are connected to both Rh and Rc terminals, remove jumper .

Set Heating Fan ControlSet jumper, on the back of the thermostat, if you have connected a wire to the G terminal.

HG Leave the jumper in this factory-set position if you have a gas or oil furnace.
HE Place the jumper to this position if you have an electric furnace.

Incorrect jumper setting: An incorrect setting is noticeable in a gas or oil heating system. When heating starts, you will initially feel cold air coming out of the vents as the fan is running before the furnace has enough time to heat up the air.

Install Batteries

  1. Pull out the battery cover.
  2. Install two AA alkaline batteries.
  3. Reinstall the battery cover.

Install Thermostat onto Wallplate

  1. Mount the thermostat on the wallplate.
  2. Tighten the screw and install the cover plate.

Turn Power Back OnTurn the power back on to the heating/cooling system.

If your system type is…

Single Stage Standard Forced Air Heat and CoolCongratulations, you’re done!

  • Hot Water Heat
  • Steam or Gravity Heat
  • High Efficiency Forced Air

Continue with advanced installationMatch your thermostat to your system type. If you are not sure of your system type or if you have other questions, call us toll-free at 1-800-468-1502.

This thermostat works on 24 volt or 750 mV systems. It will NOT work on multi-stage heating and cooling systems, multi-stage heat pump systems, or 120/240 Volt systems.

System setup

Press and hold the up and down buttons until the screen changes (approximately 3 seconds).

Temperature display

Press the up or down button to select Fahrenheit or Celsius temperature display.

Heating cycle rate

Note: Make sure system switch is in the heat position.

4 Gas or oil furnace: Use this setting if you have a standard gas or oil furnace that is less than 90% efficient.6 Electric furnace: Use this setting if you have any type of electric heating system.3 Hot water or high-efficiency furnace: Use this setting if you have a hot water system or a gas furnace of greater than 90% efficiency.2 Gas/oil steam or gravity system: Use this setting if you have a steam or gravity heat system.

Cooling cycle rate

Note: Make sure system switch is in the cool position.

Troubleshooting

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

Display is blank • Make sure fresh AA alkaline batteries are correctly installed .
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).
Fan does not turn on when heat is required • Check Heating Fan Control to make sure it is set to match your heating equipment .
Heating or cooling sys- tem does not respond • Move SYSTEM switch to set system to Heat. Make sure the temperature is set higher than the Inside temperature.• Move SYSTEM switch to set system to Cool. Make sure the temperature is set lower than the Inside temperature.• Check circuit breaker and reset if necessary.• Make sure power switch at heating & cooling system is on.• Make sure furnace door is closed securely.• Wait 5 minutes for the system to respond.
  • Compressor protection feature is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor.

Customer assistanceFor assistance with this product, please visit http://yourhome.honeywell.com or call Honeywell Customer Care toll-free at 1-800-468-1502.

One-year limited warranty

Honeywell warrants this product, excluding battery, to be free from defects in the workmanship 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,

  1. return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
  2. 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 which 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 terms stated above. 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, Toronto, Ontario M1V4Z9.

MERCURY NOTICE: Do not place your old thermostat in the trash if it contains mercury in a sealed tube. Contact your local waste management authority for instructions regarding recycling and proper disposal.

CAUTION: To avoid possible compressor damage, do not run air conditioner if the outside temperature drops below 50°F (10°C).

Automation and Control SolutionsHoneywell International Inc.1985 Douglas Drive NorthGolden Valley, MN 55422

Honeywell Limited-Honeywell Limitée35 Dynamic DriveToronto, Ontario M1V 4Z9yourhome.honeywell.com

® U.S. Registered Trademark© 2010 Honeywell International Inc.69-2446ES—01 M.S. 05-10Printed in U.S.A.

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