This manual covers the following models:
TH2110D: For 1-Heat / 1-Cool systems
TH2210D: For 2-Heat / 1-Cool heat pump systems (Remove thermostat from wallplate and turn over to find model number.)
CAUTION: EQUIPMENT DAMAGE HAZARD.
To prevent possible compressor damage, do not use Cooling mode when the outdoor temperature is below 50 °F (10 °C).
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.
© 2006 Honeywell International Inc. All rights reserved.
Your new Honeywell thermostat has been designed to give you many years of reliable service and easy-to-use, push-button climate control.
This thermostat is ready to go
Simply perform the three steps below and the thermostat is in operation:
Your thermostat is pre-programmed with Energy Star® settings. If you do not wish to use these settings, you can:
Use the SYSTEM switch to place the system in one of the following modes:
Use the FAN switch to select the fan operation.
Press the Run button to follow the programmed schedule. For maximum energy savings while maintaining comfort, you can program the schedule such that the temperature is at an economical level when you sleep or leave for work and at a comfortable level when you are awake and at home. You can program up to four periods per day:
Wake | Starts when you wake up |
Leave | Starts when you leave for work |
Return | Starts when you return home |
Sleep | Starts when you go to sleep |
To program a period, you need to set its start time and its two temperature settings (one when the thermostat is in cooling mode and another one when it is in heating mode). The same settings are used every day from Monday to Friday and another set of settings are used for Saturday and Sunday. For example, you could program all four periods for the weekdays but only two periods (Wake and Sleep) for the weekends.
The thermostat has been programmed with Energy Star® settings. These settings can reduce your energy bills by 33%. See the next page if you wish to modify the settings.
Period | Weekdays | Weekends | ||||
Start time | Heat | Cool | Start time | Heat | Cool | |
Wake | 6:00 am | 70 °F (21 °C) | 75 °F (24 °C) | 6:00 am | 70 °F (21 °C) | 75 °F (24 °C) |
Leave | 8:00 am | 62 °F (17 °C) | 83 °F (28 °C) | – – | – – | – – |
Return | 6:00 pm | 70 °F (21 °C) | 75 °F (24 °C) | – – | – – | – – |
Wake | 10:00 pm | 62 °F (17 °C) | 78 °F (26 °C) | 10:00 pm | 62 °F (17 °C) | 78 °F (26 °C) |
To temporarily ignore the schedule, press
NOTE: Pressing
Press the Run button if you wish to cancel the temporary setting before the beginning of the next period.
To permanently ignore the schedule, press
Press the Run button if you wish to cancel the override and resume the schedule. The word Hold will disappear and the thermostat will be set to the temperature programmed for the current period.
Adaptive Intelligent Recovery™ allows the thermostat to “learn” how long your furnace or air conditioner takes to reach the set temperature. Simply program the desired times and desired temperatures into the schedule. The thermostat will determine when to activate heating or cooling so that the desired temperature is attained at the desired time.
Example: If you set the Wake time to 6 a.m. and the temperature to 70 °F (21 °C), the heat will come on before the set time, so the temperature is 70 °F (21 °C) by the time you wake at 6 a.m.
Your thermostat has a feature that helps prevent damage to the compressor of your air conditioning or heat pump system. 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.
NOTE: Batteries are optional (serving as backup power) only if your thermostat is connected to 24 VAC.
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 the low-battery icon flashes on the screen. The icon 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.
Most settings are stored in non-volatile (permanent) memory. Only the clock and the day must be set if the thermostat was without AC power or batteries.
NOTE: The low-battery icon will not appear when the batteries are depleted if the thermostat is connected to 24 VAC.
Screen is blank.
Temperature settings cannot be changed.
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.
For assistance with this product, please visit http://yourhome.honeywell.com.
Or call Honeywell Customer Care toll-free at 1-800-468-1502.
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 two (2) years 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,
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 TWO-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.
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
http://yourhome.honeywell.com
Honeywell Limited-Honeywell
Scarborough, Ontario M1V 4Z9®
U.S. Registered Trademark.
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