Honeywell RTH111 Non-Programmable Thermostat User Manual

Honeywell RTH111 Non-Programmable Thermostat User Manual

CAUTION: EQUIPMENT DAMAGE HAZARD
To prevent possible compressor damage, do not use Cooling mode when the outdoor temperature is below 50°F (10°C).

Read and save these instructions.

About your new thermostat

Your new thermostat has been designed to give you many years of reliable service and easy-to-use, push-button climate control.

Features

• Displays ambient (measured) temperature at all times
• One-touch access to setpoint temperature
• Built-in compressor protection

This thermostat is ready to go

Simply perform the three steps below and the thermostat is in operation:

1. Select whether to heat or cool using the System switch.
2. Select whether to run the fan continuously or only when needed using the Fan switch.
3. Set the temperature using the Up or Down button.

Quick reference to controls

Quick reference to display

System switch (Heat/Cool)

Use the System switch to place the system in one of the following modes:

• Cool: System is in Cooling mode.
• Off: System is off.
• Heat: System is in Heating mode.

CAUTION: EQUIPMENT DAMAGE HAZARD.
Do not use Cooling mode when the outdoor temperature is below 50°F (10°C).

Fan switch (Auto/On)

Use the Fan switch to select the fan operation.

• Auto: The fan runs only when heating or cooling is activated (commonly used setting).
• On: The fan runs continuously.

Built-in compressor protection

Your thermostat has a feature that helps prevent damage to the compressor of your air conditioning or heat pump system. Because damage can occur if the compressor is restarted too soon after shutdown, this feature forces the compressor to wait 5 minutes before restarting. During the wait time, the message Cool On or Heat On flashes on the screen. When the safe wait time has elapsed, the message stops flashing and the compressor turns on.

Battery replacement

Set the System switch to Off before removing the batteries. Otherwise, the heating/cooling system could remain activated even when batteries are removed.

Install two fresh AAA batteries when Lo Batt flashes on the screen. Lo Batt appears for 60 days before the batteries are depleted.
Replace batteries once a year, or when you will be away for more than a month.
The settings are stored in non-volatile (permanent) memory and are thus preserved when the thermostat is without batteries.

In case of difficulty

• Screen is blank.
  • Ensure two fresh AAA alkaline batteries are correctly installed.
• Temperature settings cannot be changed.
  • The System switch is off.
  • You are setting the temperature outside its allowable range:
  • Heat: 40°F to 90°F (4.5°C to 32°C)
  • Cool: 50°F to 99°F (10°C to 37°C)
• Cool On or Heat On is flashing.
  • The compressor protection delay is underway. Wait for the delay to end (maximum of 5 minutes).
• HI appears on the screen.
  • The ambient (measured) temperature is above 122°F (50°C).
• LO appears on the screen.
  • The ambient (measured) temperature is below 32°F (0°C).
• E1 appears on the screen.
  • The temperature sensor circuit is opened. Replace the thermostat.
• E2 appears on the screen.
  • The temperature sensor circuit is shorted. Replace the thermostat.

Customer assistance

For assistance with this product, please visithttp://DIYthermostats.honeywell.com. Or call Honeywell Customer Care toll-free at 1-800-468-1502.

To save time, before calling, proceed as follows:

1. Loosen the locking screw at the bottom of the thermostat. Note that the screw is captive and cannot be removed from the wallplate.
2. Separate the thermostat from the wallplate as per figure on the right.
3. Note your model number and date code on the thermostat’s wallplate.

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 to Honeywell Customer Relations, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502. In Canada, write to Retail Products ON15-02H, Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.

Need Help?

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

Automation and Control Systems

Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422

Honeywell Limited
35 Dynamic Drive
Scarborough, Ontario M1V 4Z9

http://DIYthermostats.honeywell.com

Printed in U.S.A.
69-2385ES—01 09-09

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