Honeywell Home RTH111B1042 User manual

RTH111B1042,
Read before installing
For help please visit
resideo.com
Heat Off Cool
Auto On
Fan
RTH111 Series
Non-Programmable
Thermostat
Owner’s Manual
Identify System Type
This thermostat is compatible with the following systems:
• Gas, oil or electric furnace
• Central air conditioner
• Hot water system with or without pump
• Millivolt system
• Central heating and cooling system
• Heat pump without auxiliary/backup heat
This thermostat cannot be used on heat pumps with backup heat or on
multistage systems.

2
NOTICE: To avoid possible compressor damage, do not run air
conditioner if the outside temperature drops below 50 °F (10 °C).
ATTENTION: MERCURY RECYCLING
NOTICE
This product does not contain mercury.
However, this product may replace a product
that contains mercury. Mercury and products
containing mercury should not be discarded in
household trash.
For more information on how and where to
properly recycle a thermostat containing
mercury in the United States, please refer to the
Thermostat Recycling Corporation at
www.thermostat-recycle.org.
For mercury thermostat recycling in Canada,
please refer to Switch the Stat at
www.switchthestat.ca
NO MERCUR
Y
NO BOTE
MERCURIO
Hg
RTHXXXX
M32707
Customer assistance
For assistance with this product, please visit
resideo.com.
To save time, please note your model
number and date code before calling.
Pull at bottom to remove thermostat from
wallplate.
Turn thermostat over to find model number
and date code.

3
Installation
Installation.......................................................3
Advanced Installation ................................8
About your new thermostat
Controls and Home screen
quick reference...........................................10
Compressor protection...........................11
Replace batteries.......................................11
Appendices
Troubleshooting.........................................12
Limited warranty........................................13
Table of contents
1 Turn Off Power to Heating/Cooling System
or
M31535
Circuit breaker
box
Heating/cooling system
power switch

4
Do not remove wallplate yet
3 Label Wires with Tags
Label the wires using the supplied wire labels as you disconnect them.
Wire Labels
www.honeywellhome.com
C
C
MCR33823
Terminal
designation
If you have an older thermostat with
a sealed mercury tube, turn to page
2 for proper disposal instructions.
Terminal designation
C
C
MCR31537
2 Remove Old Thermostat
Remove old thermostat but leave wallplate with wires attached.
4 Separate Wallplate from New Thermostat
Remove wallplate from the new thermostat and mount onto wall.
M32731
TO REMOVE WALLPLATE
PULL HERE
Wallplate

5
5 Mount Wallplate
Mount the new wallplate using the included screws and anchors.
Drill 3/16-in. (4,76 mm ) holes for drywall
Drill 3/32-in. (2,38 mm ) holes for plaster
6 Connect Wires
Simply match wire labels.
If labels do not match letters on the thermostat, check “Alternate Wiring” on
page 6 and connect to terminal as shown (see notes, below).
W/
Aux
Not
Used
M32714
Remove metal
jumper if you
have both Rand
Rc wires.
M32732
SCREW
INSERT WIRES
AND TIGHTEN
SCREWS
WIRE
HOLE
LABELED
WIRES
W
G
R
Not
Used
W
Y

6
Alternate Wiring
If labels do not match letters on the thermostat, check the chart below and
connect to terminal as shown here (see notes, below).
If wires will be connected to both Rand Rc terminals, remove metal
jumper.
Do not use Cor X. Wrap bare end of wire with electrical tape.
If you have a heat pump without auxiliary/backup heat connect Oor B,
not both. If you do not have a heat pump, do not connect B. Wrap bare
end of wire with electrical tape.
Place a jumper (piece of wire) between Yand Wif you are using a heat
pump without auxiliary/backup heat.
7 Install Batteries
Install two AAA alkaline batteries.
Back of thermostat
RTHXXXX
M32707
B O G Y
WNOT
USED
R Rc
M32734
44

7
8 Set fan operation switch
Move the switch to the proper setting:
Gas or Oil: For gas or oil heating systems,
leave the fan operation switch in this factory-
set position (for systems that control the fan in
a call for heat).
Electric or Heat Pump: Change the switch
to this setting for heat pump or electric heat
systems. (This setting is for systems that allow
the thermostat to control the fan in a call
for heat, if a fan wire is connected to the G
terminal.)
9 Install Thermostat
onto Wallplate
Install thermostat onto the wallplate
on the wall.
RTHXXXX
M32716
GAS OR OIL
ELECTRIC OR HEAT PUMP
GAS OR OIL
ELECTRIC OR HEAT PUMP
10 Turn Power Back On
Turn the power back on to
the heating/cooling system.
M31544
or
Circuit breaker box Heating/cooling system
power switch
W/
Aux
Not
Used
M33588
Heat Off Cool Auto On
Fan
Heat Off Cool
Auto On
Fan

8
11 If your system type is...
If your system type is:
qSingle Stage Heat and Cool
qHeat Only or Cool Only
Congratulations, you’re done!
This thermostat works on single stage 24 volt or 750 mV systems. It will
NOT work on multi-stage systems.
Advanced
Installation
Enter System Setup
To enter system setup, press and
hold both the sand tbuttons until
the display changes (approximately
5 seconds).
Changing Settings
1. Press the sor tbutton to
change the setting.
2. Press the sand tbuttons
simultaneously for one second to
advance to the next function.
3. When the last function is displayed, press the sand tbuttons to save
any changes and exit the menu.
M33589
Heat Off Cool Auto On
Fan
55
M33590
Function
Setting

9
NOTE: If you do not press any button for 60 seconds while you are in the
setup menu, the thermostat automatically saves any changes made and exits
the menu.
Function
Description
Press the sor tbutton to Setting
5 select your heating system and
optimize its operation
5 Gas or oil furnace: Use this setting if you have a standard gas or
oil furnace that is less than 90% efficient.
6 Electric furnace: Use this setting if you have any type of electric
heating system.
3 Heat pump, hot water or high-efficiency furnace:
Use this setting if you have a hot water system or a gas furnace of
greater than 90% efficiency.
2 Gas/oil steam or gravity system: Use this setting if you
have a steam or gravity heat system.
14 select Fahrenheit or Celsius
temperature display
0 Fahrenheit temperature display (°F)
1 Celsius temperature display (°C)
15* select Compressor Protection settings 1 On
0 Off
* Compressor Protection: This feature forces the compressor to wait approximately 5 minutes
before restarting, to prevent equipment damage. During the wait time, the message “Cool On” or
“Heat On” is displayed on screen.
About your new thermostat
Your new Resideo thermostat has been designed to give you many years of
reliable service and easy-to-use, push-button climate control.
• Displays ambient (measured) temperature at all times
• One-touch access to setpoint temperature
• Built-in compressor protection

10
Lo
Batt
Set
Cool
77
M32763
On
M33586
Heat Off Cool Auto On
Fan
Thermostat controls
Temperature
adjustment
Press the up or
down buttons
until you reach
the desired
temperature.
NOTE: Make sure
the SYSTEM switch
is set to the system
you want to control
(Heat or Cool).
Fan Switch is used to control your fan.
In “Auto” mode, the fan runs only when the
heating or cooling system is on.
If set to “On,” the fan runs continuously.
System Switch
is used to control
your heating or
cooling system.
• Heat: Heating
system control.
• Off: All systems
off.
• Cool: Cooling
system control.
Display screen
Low battery warning
(see page 11)
Setpoint indicator
Appears when the setpoint
temperature is displayed.
Temperature
The ambient (measured)
temperature is normally
displayed. To view the
setpoint temperature,
press the Up or Down
button once. The setpoint
temperature will appear
for five seconds.
System status
Cool on: Cooling system is on.
Heat on: Heating system is on.
When Cool On is flashing, compressor
protection is engaged (see page
11).

11
Set
Cool
77
M32769
On
Built-in compressor protection
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.
Battery replacement
Install two fresh AAA batteries when
Lo Batt flashes on the screen. Lo
Batt 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
after you replace the batteries.
Pull at bottom to
remove thermostat from
wallplate.
Turn thermostat
over, insert fresh AAA
alkaline batteries,
then reinstall
thermostat.
Set the System switch to Off before removing
the batteries. Otherwise, the heating/cooling
system could remain activated even when
batteries are removed.
RTHXXXX
M32707
W/
Aux
Not
Used
M33588
Heat Off Cool Auto On
Fan
Heat Off Cool
Auto On
Fan

12
Troubleshooting
If you have difficulty with your thermostat, please try the following
suggestions. Most problems can be corrected quickly and easily.
Display is
blank • Make sure fresh AAA alkaline batteries are correctly installed.
Heating
or cooling
system does
not respond
• Set system switch to Heat. Make sure the temperature is
set higher than the Inside temperature.
• Set system switch to Cool. Make sure the temperature is
set lower than the Inside temperature.
• Wait 5 minutes for the system to respond.
Cannot
change
setpoint
Verify the system switch is set to Heat or Cool mode. The
thermostat should allow you to change the setpoint within
the following ranges:
• Heat: 40 °F to 90 °F (4.5 °C to 32 °C).
• Cool: 50 °F to 99 °F (10 °C 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.
“Heat On” is
not displayed • Set the System switch to Heat, and set the temperature level above the current room temperature.
“Cool On” is
not displayed • Set the System switch to Cool, and set the temperature level below the current room temperature.
For assistance with this product, please visit resideo.com.
Electrical Ratings
Terminals Voltage
(50 Hz/60 Hz) Running Current
WHeating 20 VAC30 VAC 1.0 A
WPower Pile Heating 750 mV DC 100 mA DC
YCompressor 20 VAC30 VAC 1.0 A
OChangeover, Cooling 20 VAC30 VAC 0.5 A
BChangeover, Heating 20 VAC30 VAC 0.5 A
GFan 20 VAC30 VAC 0.5 A

13
1-year limited warranty
Resideo warrants this product, excluding battery, to be free from defects in
workmanship or materials, under normal use and service, for a period of one (1) year
from the date of first purchase by the original purchaser. If at any time during the
warranty period the product is determined to be defective due to workmanship or
materials, Resideo shall repair or replace it (at Resideo’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 Resideo Customer Care at 18004681502. Customer Care will make the
determination whether the product should be returned to the following address:
Resideo Return Goods, 1985 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 Resideo that the defect was caused by damage which occurred
while the product was in the possession of a consumer.
Resideo’s sole responsibility shall be to repair or replace the product within the terms
stated above. RESIDEO 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 RESIDEO 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
Resideo Customer Care, 1985 Douglas Dr, Golden Valley, MN 55422 or call
18004681502.

33-00137ES-03
www.resideo.com
© 2020 Resideo Technologies, Inc. All rights reserved.
The Honeywell Home trademark is used under license from Honeywell
International, Inc. This product is manufactured by Resideo Technologies,
Inc. and its affiliates.
Todos los derechos reservados. La marca comercial Honeywell Home se uti-
liza bajo licencia de Honeywell International, Inc. Este producto es fabricado
por Resideo Technologies, Inc. y sus afiliados.
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
3300137ES03 M.S. Rev. 0520 | Printed in United States

Heat Off Cool
Auto On
Fan
RTH111 Serie
Termostato
No Programable
Manual del propietario
RTH111B1042,
Leer antes de instalar
Para obtener ayuda, visite
resideo.com
Identifique el tipo de sistema
Este termostato es compatible con los siguientes sistemas:
• Calefactor a gas, aceite o eléctrico
• Aire acondicionado central
• Sistema a agua caliente con o sin bomba
• Sistema de milivoltios
• Calefacción y aire acondicionado centrales
• Bomba de calor sin calefacción auxiliar
Este termostato no puede usarse en bombas de calor con calefacción
auxiliar ni en sistemas multietapas.

2
AVISO: Para evitar posibles daños al compresor, no utilice el aire
acondicionado si la temperatura externa es inferior a 10 °C (50 °F).
ATENCIÓN: AVISO PARA EL RECICLAJE
DEL MERCURIO
Este producto no contiene mercurio. Sin
embargo, este producto puede reemplazar
uno que contenga mercurio. El mercurio y los
productos que contengan mercurio no se deben
desechar con los desperdicios domésticos.
Para más información sobre cómo y dónde
reciclar adecuadamente un termostato que
contenga mercurio en los Estados Unidos,
consulte con Thermostat Recycling Corporation
en www.thermostat-recycle.org.
Para el reciclaje de termostatos con mercurio en
Canadá, consulte con Switch the Stat en
www.switchthestat.ca
NO MERCUR
Y
NO BOTE
MERCURIO
Hg
RTHXXXX
M32707
Asistencia al cliente
Para obtener asistencia relacionada con este
producto, visite resideo.com.
Para ahorrar tiempo, anote el número de modelo y el
código de fecha antes de llamar.
Gire el termostato para ver el número de
modelo y el código de fecha.

3
Instalación
Instalación .......................................................3
Guía de instalación avanzada................8
Acerca de su nuevo termostato
Referencia rápida de los controles
y la pantalla de inicio...............................10
Protección del compresor.....................11
Reemplazo de la batería........................11
Apéndices
Localización y solución
de problemas...............................................12
Garantía limitada.......................................13
Índice
1 Desconecte la alimentación en el sistema de
calefacción/refrigeración
o
M31535
Caja de interruptores
de circuito
Interruptor de energía del sistema
de calefacción/refrigeración

4
2 Remueva su viejo termostato
Retire el termostato existente pero deje la placa de montaje con los cables
adheridos.
M32731
TO REMOVE WALLPLATE
PULL HERE
Placa de montaje
No retirar la placa
mural todavía
www.honeywellhome.com
C
C
MCR33823
Designación de
los terminales
Si el termostato existente tiene un tubo de mercurio
sellado, vaya a la página 2 para obtener
instrucciones sobre cómo desecharlo adecuadamente.
Rótulos para los cables
Designación de los terminales
C
C
MCR31537
3 Identifique los cables
Identifique los cables a medida que los desconecta, utilizando las etiquetas
que se suministran.
4 Separe la placa de montaje del termostato
nuevo
Retire la placa de montaje del termostato nuevo y móntela en la pared.

5
5 Coloque la placa de montaje
Monte la nueva placa de montaje utilizando los tornillos y anclajes que se
suministran.
Taladre agujeros de 2,4 mm (3/32 in. ) en yeso
Taladre agujeros de 4,8 mm (3/16 in.) en paneles de yeso
6 Conecte los cables
Simplemente haga corresponder las etiquetas de los cables.
Si las etiquetas no corresponden con las letras del termostato, revise
“Conexión alternativa” en la página 6 y conecte al terminal como se indica
(refiérase a las notas que siguen).
W/
Aux
Not
Used
M32714
Retire el empalme
metálico si tiene los
cables Ry Rc.
MS32732
W
G
R
Not
Used
W
Y
TORNILLO
INSERTE
LOS CABLES
Y APRIETE
LOS TORNILLOS
ORIFICIO DE
CABLEADO
CABLES
ETIQUETADOS

6
Conexión alternativa
Si las etiquetas no corresponden con las letras del termostato, revise la tabla
que sigue y conecte al terminal como se indica aquí (refiérase a las notas que
siguen).
Si los cables se conectarán a los terminales Ry Rc, retire el puente
metálico.
No utilice Co X. Envuelva los extremos pelados del cable con cinta
aislante.
Si tiene una bomba de calor sin calefacción auxiliar/de reserva conecte
Oo B, no ambos. Si no tiene una bomba de calor, no conecte B.
Envuelva los extremos pelados del cable con cinta aislante.
Coloque un puente (trozo de cable) entre Yy W/Aux si está utilizando
una bomba de calor sin calefacción auxiliar/de reserva.
Parte de atrás del termostato
RTHXXXX
M32707
7 Instale las baterías
Instale dos baterías alcalinas AAA en la parte de atrás del termostato.
B O G Y
WNOT
USED
R Rc
MS32734
44
No
Conect
e