HONEYWELL TH3000 User Manual
PRO TH3000 Series
69-1776EF-1
Non-Programmable Digital Thermostat
Operating
Manual
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.
Table of contents
PRO TH3110D / TH3210D
About your new thermostat
Thermostat features ...................................2
Quick reference to controls .......................3
Quick reference to display ........................ 4
Thermostat Operation
System switch (Heat/Cool) ........................5
Fan switch (Auto/On) .................................6
Temperature controls ................................. 7
Compressor protection ..............................8
Appendices
Battery replacement ..................................9
In case of difficulty...................................10
Customer assistance ...............................12
Accessories ............................................. .12
5-year limited warranty ............................13
1
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.
2
About your new thermostat
Quick reference to controls
PRO TH3110D / TH3210D
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.)
3
Operating Manual
Em Aux
Heat On
Set To
Inside
75
75
Replace Batt
Quick reference to display screen
Current inside temperature
Low battery warning
(see page 9)
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).
4
Temperature setting
If “Heat On” or “Cool
On” is flashing, compressor protection is
engaged (see page 8).
System switch
PRO TH3110D / TH3210D
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
heating or cooling system.
CAUTION: EQUIPMENT DAMAGE HAZARD.
Do not operate cooling system when outdoor
temperature is below 50°F (10°C).
5
Operating Manual
Fan switch
Set FAN switch to choose whether the fan
runs continuously or only as needed.
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.
6
About your new thermostatTemperature controls
Cool On
Set To
78
Inside
75
PRO TH3110D / TH3210D
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).
Desired
temperature.
Temperature
adjustment buttons.
7
Operating Manual
Cool On
Set To
Inside
75
75
Built-in compressor protection
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.
8
Battery replacement
PRO TH3110D / TH3210D
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.
9
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