Honeywell RTH3100C User manual

Operating
Manual
RTH3100C
Non-Programmable Digital Thermostat
69-1890EF-1

Read and save these instructions.
® U.S. Registered Trademark. Patents pending.
Copyright © 2006 Honeywell International Inc. All rights reserved.
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

RTH3100C
1
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
1-year limited warranty............................13
Table of contents

Operating Manual
2
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
About your new thermostat

RTH3100C
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About your new thermostat
Temperature adjustment
Press to adjust temperature
settings.
Fan Switch (see page 6)
On: Fan runs continuously.
Auto: Fan runs only when
heating or cooling system is on.
Quick reference to controls
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.
Digital display screen

Operating Manual
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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.
Quick reference to display screen
Heat On
Set To
Inside
75
75
Replace Batt
Current inside temperature Temperature setting
If flashing, compressor
protection is engaged
(see page 8).
Low battery warning

RTH3100C
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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.
System switch
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).

Operating Manual
6
Fan switch
Set the FAN switch to Auto or On.
In “Auto” mode (the most commonly used
setting), the fan runs only when the heat-
ing or cooling system is on.
If set to “On,” the fan runs continuously.
Use this setting for improved air circula-
tion, or for more efficient air cleaning.
Set FAN switch to choose whether the fan
runs continuously or only as needed.

RTH3100C
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About your new thermostatTemperature controls
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
Cool On
Set To
78
Inside
75

Operating Manual
8
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 fea-
ture forces the compressor to wait for a few
minutes before restarting.
During the wait time, the display will flash the
message Cool On or Heat On. When the safe
wait time has elapsed, the message stops
flashing and the compressor turns on.
Message flashes until safe restart
time has elapsed.
Built-in compressor protection
Cool On
Set To
Inside
75
75

RTH3100C
9
Batteries are optional if your ther-
mostat was wired for AC power
when installed. Install fresh batteries
immediately when the REPLACE BATT
warning begins flashing.
Even if the warning does not
appear, you should replace batteries
once a year, or before leaving home
for more than a month.
Batteries provide backup power
to the display during power inter-
ruptions. All settings are perma-
nently stored in memory, and do not
require battery power.
Pull at bottom to
remove thermostat
from wallplate.
Turn thermostat over,
insert fresh AA alkaline
batteries, then reinstall
thermostat.
Battery replacement

Operating Manual
10
If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank • Check circuit breaker and reset if necessary.
• Make sure power switch at heating & cooling system is on.
• Make sure furnace door is closed securely.
• Make sure fresh AA alkaline batteries are correctly installed (see page 9).
Heating or
cooling system
does not respond
• Set system switch to Heat (see page 5). Make sure the temperature is
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.
In case of difficulty

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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
•Compressor protection feature is engaged. Wait 5 minutes for the system
to restart safely, without damage to the compressor (see page 8).
“Heat On” is not
displayed
•Set the System switch to Heat, and set the temperature level above the
current room temperature (see page 7).
“Cool On” is not
displayed
•Set the System switch to Cool, and set the temperature level below the
current room temperature (see page 7).
In case of difficulty

Operating Manual
12
For assistance with this product, please visit
http://yourhome.honeywell.com.
Or call Honeywell Customer Care toll-free at
1-800-468-1502.
To save time, please note your model number
and date code before calling.
Accessories/replacement parts
To order, please call Honeywell Customer
Care toll-free at 1-800-468-1502.
Cover plate*...................Part No. 50002883-001
*Use to cover marks left by old thermostats.
Customer assistance
Turn thermostat over
to find model number
and date code.
Pull at bottom to
remove thermostat
from wallplate.

RTH3100C
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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,
(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.
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 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.
1-year limited warranty

Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
http://yourhome.honeywell.com
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario M1V 4Z9
® U.S. Registered Trademark.
© 2006 Honeywell International Inc.
69-1890EF-1 M.S. Rev. 04-06
Automation and Control Systems
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.

Manuel
d’utilisation
RTH3100C
Thermostat numérique non programmable
69-1890EF-1

Instructions à lire et à conserver.
® Marque de commerce déposée aux É.-U. Brevets en instance.
Droit d’auteur © 2006 Honeywell International Inc. Tous droits réservés.
Besoin d’aide?
Pour obtenir de l’assistance au sujet de ce produit, consulter le
http://yourhome.honeywell.com ou téléphoner sans frais au Centre de
service à la clientèle de Honeywell au 1 800 468-1502

RTH3100C
1
À propos du thermostat
Caractéristiques du thermostat................2
Consultation rapide des commandes .....3
Consultation rapide de l’écran..................4
Fonctionnement du thermostat
Commutateur du système
(Heat/Cool)...............................................5
Commutateur du ventilateur
(Auto/On)..................................................6
Commandes de température..................7
Protection du compresseur .................... 8
Annexes
Remplacement des piles...........................9
En cas de problème.................................10
Assistance à la clientèle..........................12
Accessoires.............................................. 12
Garantie limitée .......................................13
Table des matières

Manuel d’utilisation
2
Félicitations pour l’achat de votre nouveau thermostat Honeywell. Il a été conçu
pour vous offrir de nombreuses années de fonctionnement fiable et de réglage
d’ambiance au moyen de simple commandes à boutons-poussoirs.
Caractéristiques
• Commandes de température à touche unique
• Grand écran transparent et rétroéclairé, facile à lire même dans le noir
• Réglage de ventilateur (fonctionnement automatique ou continu)
• Affiche à la fois la température ambiante et la température programmée
• Protection du compresseur intégrée
À propos du thermostat