Operating
Manual
PRO TH3000 Series
Non-Programmable Digital Thermostat
69-1776EF-1
This manual covers the following models:
TH3110D: For 1 Heat/1 Cool systems
TH3210D: For 2 Heat/1 Cool heat pump systems only
(Pull thermostat from wallplate and turn over to find model number.)
CAUTION: EQUIPMENT DAMAGE HAZARD.
To prevent possible compressor damage, do not operate cooling system when 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. Copyright © 2006 Honeywell International Inc. All rights reserved.
PRO TH3110D / TH3210D
Table of contents |
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About your new thermostat |
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Thermostat features................................... |
2 |
Quick reference to controls....................... |
3 |
Quick reference to display......................... |
4 |
Thermostat Operation |
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System switch (Heat/Cool)......................... |
5 |
Fan switch (Auto/On).................................. |
6 |
Temperature controls................................. |
7 |
Compressor protection.............................. |
8 |
Appendices |
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Battery replacement................................... |
9 |
In case of difficulty................................... |
10 |
Customer assistance................................ |
12 |
Accessories.............................................. |
12 |
5-year limited warranty............................ |
13 |
Operating Manual
About your new thermostat
Your new Honeywell thermostat has been designed to give you many years of reliable service and easy-to-use, push-button climate control.
Features
•Large, clear, backlit display is easy to read, even in the dark.
•Displays both room temperature and temperature setting.
•Built-in compressor protection.
PRO TH3110D / TH3210D
QuickAbout referenceyournew thermostattocontrols
Digital display screen
Fan Switch (see page 6) On: Fan runs continuously.
Auto: Fan runs only when heating or cooling system is on.
Temperature adjustment
(see page 7)
System switch (see page 5)
•Cool: Cooling system control.
•Off: All systems off.
•Heat: Heating system control.
•Em Heat: Emergency & Auxiliary Heat control. Compressor is locked out. (Select models only.)
Operating Manual
Quick reference to display screen
Current inside temperature |
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Inside |
Set To |
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75 |
75 |
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Low battery warning |
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Replace Batt |
Em Aux |
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Heat On |
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(see page 9) |
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System Status
•Cool On: Cooling system is on.
•Heat On: Heating system is on.
•Em: Emergency heat is on. **
•Aux: Auxiliary heat is on. **
**Only for heat pumps with this capability (select models only).
Temperature setting
If “Heat On” or “Cool On” is flashing, compressor protection is engaged (see page 8).
PRO TH3110D / TH3210D
System switch
The SYSTEM switch can be set to control your heating or cooling system, depending on the season.
•Cool: Cooling system control.
•Off: All systems are off.
•Heat: Heating system control.
• Em Heat: Emergency & Auxiliary Heat control. Compressor is locked out. (Select models only.)
Set SYSTEM switch to control the |
CAUTION: EQUIPMENT DAMAGE HAZARD. |
heating or cooling system. |
Do not operate cooling system when outdoor |
|
temperature is below 50°F (10°C). |
Operating Manual
Fan switch
Set the FAN switch to Auto or On.
In “Auto” mode (the most commonly used setting), the fan runs only when the heating or cooling system is on.
If set to “On,” the fan runs continuously. Use this setting for improved air circulation, or for more efficient air cleaning.
Set FAN switch to choose whether the fan runs continuously or only as needed.
PRO TH3110D / TH3210D
TemperatureAbout your newcontrolsthermostat
Inside |
Set To |
78 |
75Cool On |
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Temperature |
Desired |
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temperature. |
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adjustment buttons. |
Press the temperature adjustment buttons until the temperature you want is displayed in the upper right portion of the screen.
Note: Make sure the SYSTEM switch is set to the system you want to control (Heat or Cool).
Operating Manual
Built-in compressor protection
Inside |
Set To |
75 |
75 |
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Cool On |
Message flashes until safe restart time has elapsed.
This feature helps prevent damage to the compressor in 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 display will flash the message Cool On (or Heat On if you have a heat pump). When the safe wait time has elapsed, the message stops flashing and the compressor turns on.
PRO TH3110D / TH3210D
Battery replacement
Pull at bottom to remove thermostat from wallplate.
Turn thermostat over, insert fresh AA alkaline batteries, then reinstall thermostat.
Batteries are optional (for backup power) if your thermostat was wired to run on AC power when installed.
Install fresh batteries when the REPLACE BATT warning begins flashing. The warning flashes about two months before the batteries are depleted.
Replace batteries once a year, or before leaving home for more than a month. Batteries provide backup power to the display during power interruptions. All settings are permanently stored in memory, and do not require battery power.