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TH3110B
Non-programmable Digital Thermostat
Operating
Manual
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Need Help?
For assistance with this product please visit www.honeywell.com/yourhome
or call Honeywell Customer Care toll-free at 1-800-468-1502
Read and save these instructions
® U.S. Registered Trademark. Patents pending.
Copyright © 2005 Honeywell International Inc. All rights reserved.
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PRO TH3110B Digital Thermostat
Table of contents
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Thermostat features ........................2
Quick reference to controls............3
Quick reference to display..............4
TThheerrmmoossttaatt OOppeerraattiioonn
System switch (Heat/Cool) ............5
Fan switch (Auto/On) ....................6
Temperature controls......................7
Compressor protection ..................8
AAppppeennddiicceess
Battery replacement........................9
In case of difficulty ......................10
Customer assistance......................12
Accessories....................................12
Limited warranty ..........................13
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Operating Manual
About your new thermostat
Congratulations on the purchase of your new Honeywell thermostat. It has been
designed to give you many years of reliable service and easy-to-use, push-button
climate control.
Features
• One-touch temperature controls
• Large, clear backlit display is easy to read, even in the dark
• Switchable fan control (auto or continuous fan)
• Displays both room temperature and temperature setting
• Built-in compressor protection
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PRO TH3110B Digital Thermostat
Quick reference to controls
Digital display screen Temperature buttons
Fan switch
On: Fan runs continuously
Auto: Fan runs only when
heating or cooling system is on
3
Press to adjust temperature
settings
System switch
• Cool: Thermostat controls only
the cooling system
• Heat: Thermostat controls only
the heating system
• Off: Heating and cooling
systems are off
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Operating Manual
Quick reference to display screen
Current inside temperature
Inside Set To
Low battery warning
°
75
75
Replace Batt
If flashing, compressor protection
is engaged (see page 8)
Heat On
Cool On
4
Temperature setting
°
System status
On when “calling” for
heating or cooling;
flashes when waiting for
compressor restart (see
page 8)
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PRO TH3110B Digital Thermostat
System switch
SSYYSSTTEEMM
Set
cooling system.
switch to control the heating or
SSYYSSTTEEMM
The
switch can be set to
control your heating or cooling
system, depending on the season.
When set to the Off position, the
thermostat will not activate the
heating or cooling system.
CAUTION: EQUIPMENT DAMAGE
HAZARD. To prevent possible
compressor damage, do not operate
cooling system when outdoor
temperature is below 50°F (10°C).
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Operating Manual
Fan switch
FFAANN
Set
switch to choose whether the fan
runs continuously or only as needed.
Set the
FFAANN
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.
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PRO TH3110B Digital Thermostat
Temperature controls
Inside Set To
°
°
78
75
Cool On
Press the temperature adjustment
buttons until the temperature you
want is displayed in the upper right
portion of the screen.
Note: Make sure the
SSYYSSTTEEMM
switch is
set to the system you want to
control (Heat or Cool).
Desired
temperature
Temperature adjustment
buttons
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Operating Manual
Built-in compressor protection
Inside Set To
°
75
75
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 for a few
minutes before restarting.
During the wait time, the display will flash
the message Cool On
have a heat pump).When the safe wait time
has elapsed, the message stops flashing and
the compressor turns on.
8
(or Heat On if you
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PRO TH3110B Digital Thermostat
Battery replacement
Grasp and pull to
remove thermostat
Turn thermostat over,
insert fresh AA alkaline
batteries, then reinstall
thermostat
Install fresh batteries immediately
when the
RREEPPLLAACCEE BBAATTTT
warning begins
flashing.The warning flashes about
two months before the batteries are
depleted.
Even if the warning does not appear,
you should replace batteries once a
year, or before leaving home for more
than a month.
Always replace both batteries with
fresh,AA alkaline batteries.
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Operating Manual
In case of difficulty
If you have difficulty with your thermostat, please try the suggestions below. Most
problems can be corrected quickly and easily.
Display is blank • Make sure fresh AA alkaline batteries are correctly installed (see page 9).
Heating or
cooling system
does not respond
• Set system switch to Heat
set higher than the Inside temperature.
• Set system switch to Cool (see page 5). 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.
(see page 5). Make sure the temperature is
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PRO TH3110B Digital Thermostat
In case of difficulty
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).
“Cool On” or
“Heat On” is
flashing
“Heat On” is
not displayed
“Cool On” is
not displayed
• Compressor protection feature is engaged. Wait 5 minutes for the system
to restart safely, without damage to the compressor (see page 8).
• Set the System switch to Heat
current room temperature (see page 5).
• Set the System switch to Cool
current room temperature (see page 5).
, and set the temperature level above the
, and set the temperature level below
11
the
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Operating Manual
Grasp and pull to
remove thermostat
Turn thermostat over
to find model number
and date code
For assistance, please visit
wwwwww..hhoonneeyywweellll..ccoomm//yyoouurrhhoommee
Or call Honeywell Customer Care
toll-free at
11--880000--446688--11550022
.
To save time, please note your model
number and date code before calling.
Accessories
For accessories, please call Honeywell
Customer Care toll-free at
11--880000--446688--11550022
Cover plate ................Part No. 50002883-001
(Used to cover marks left by old thermostats.)
12
.
.
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PRO TH3110B Digital Thermostat
Limited 2-year warrantyCustomer assistance
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,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from
which you purchased it;or
(ii) 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.
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Operating Manual
Limited 2-year warranty
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.
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PRO TH3110B Digital Thermostat
Limited 2-year warranty
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.
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Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
www.honeywell.com/yourhome
® U.S. Registered Trademark. Patents pending.
Copyright © 2005 Honeywell International Inc. All rights reserved.
Printed in U.S. Document number 69-1758. Date 01-2005.
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario M1V 4Z9
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