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JP5 - DAYS / HOURS FILTER LIFE COUNTER  
This setting will determine how the remaining filter life will be displayed on  
the screen. In the DAYS setting, the screen will count down the number of  
calendar days remaining before a filter change is recommended. In the (%)  
setting, the screen will count down the amount of percentage (%) of air filter life  
remaining before a filter change is recommended. Either option will display the  
visual bar graph.  
Complete, Easy To Read  
INSTALLATION AND  
C A U T I O N :  
TYPICAL 24V AC 4 WIRE HOOKUP  
SINGLE STAGE HEAT AND COOL  
G
Read all instructions carefully before removing any wiring from existing  
thermostat.  
Y
W
O
B
G
RC  
RH  
OPERATING INSTRUCTIONS  
G
Wires must be labeled by their terminal letters before they are removed.  
G
G
Do not allow wires to touch each other or parts on thermostat.  
RC-RH JUMPER  
When removing wires from their terminals, ignore the color of the wires  
CAG111 SERIES  
PROVIDED  
since these may not comply with any standard.  
®
SMART TEMP DIGITAL THERMOSTAT  
OPERATING INSTRUCTIONS  
SYSTEM COMMON  
REMOVING THE OLD THERMOSTAT  
SYSTEM MODE SWITCH:  
1. Switch OFF the electricity to both the furnace  
GAS VALVE  
OR HEATER  
SYSTEM  
FAN  
AUTO  
CLEAN  
ON  
FAN  
AUTO  
CLEAN  
ON  
FAN  
AUTO  
CLEAN  
ON  
The MODE switch has three positions: HEAT, OFF, and COOL. In the winter,  
set the mode switch to HEAT to control your heating system; in the summer, set  
the switch to COOL to control your air conditioning. In the spring and fall, or  
when the windows are open, you can set the switch OFF. When the switch is in  
the HEAT position, the word "HEAT" will be displayed next to the temperature.  
When the switch is in the COOL position, the word "COOL" will be displayed  
next to the temperature. Either of these indicators will be flashing if the system  
is currently running, or on steady if the system is not currently running.  
FAN  
COMPRESSOR  
UP  
UP  
DOWN  
DOWN  
XFMR  
Easy as  
1–2–3  
and air conditioner; then proceed with the  
following:  
T
FILTER  
LIGHT  
FILTER  
LIGHT  
HEAT  
OFF  
COOL  
HEAT  
OFF  
HEAT  
OFF  
COOL  
COOL  
115VAC  
2. Remove cover from old thermostat. Most are  
snap-on types and simply pull off. Some have  
screws on the sides, these must be loosened first.  
3. Take note the letters printed near the wire  
terminals. Attach labels (enclosed) to each wire for  
identification by terminal letter, not color.  
4. Make sure the wires do not fall back inside the  
Installs Easily  
Choose Heat or Cool  
Set Temperature  
LUX PRODUCTS CORPORATION  
Mt. Laurel, New Jersey 08054, USA 43384  
TYPICAL 2 TRANSFORMER 24VAC 5 WIRE HOOKUP  
SINGLE STAGE HEAT AND COOL  
WARNING: Use Energizer® or DURACELL® Alkaline Batteries Only.  
Energizer® is a registered trademark of Eveready Battery Company, Inc.  
DURACELL® is a registered trademark of The Gillette Company, Inc.  
NOTE: When the system mode switch is in the OFF position, it is normal for  
the system's blower fan ("G" terminal if used) to still become activated  
depending upon the position of the FAN mode switch (see below).  
Y
W
O
B
G
RC  
RH  
wall, and remove and label one wire at a time.  
5. Loosen all screws on the old thermostat and/or base, and remove it from the  
wall.  
RC-RH JUMPER  
REMOVED  
FAN MODE SWITCH:  
SYSTEM COMMON 1  
SYSTEM COMMON 2  
I M P O R T A N T !  
The FAN switch has three positions: AUTO, CLEAN, and ON. Whenever the fan  
is commanded on by the thermostat, the word "FAN" will flash on the LCD  
display.  
MOUNTING THE CAG111  
1. Strip insulation leaving 3/8 in.  
(9.5mm) of bare wire on the ends  
and clean off any corrosion  
present.  
Please read all instructions carefully before beginning installation  
and save for future reference. Before removing any wiring from your  
existing thermostat, the wires must be labeled with their terminal  
designations. Ignore the color of the wires since they may not  
comply with any standard.  
G
In the AUTO position, the operation of the blower fan is determined only by  
GAS VALVE  
OR HEATER  
COOL  
XFMR  
HEAT  
FAN  
COMPRESSOR  
XFMR  
the on/off cycling of the heating and cooling systems.  
G
When the FAN switch is in the CLEAN position, this will enable the IAQ  
2. Fill the wall opening with non-  
combustible insulation to prevent  
drafts from affecting the  
thermostat.  
115VAC  
115VAC  
Clean Cycle™ (Patent Pending) feature. This will assist in improving Indoor Air  
Quality by circulating and filtering the air by using the system's blower fan on a  
timed basis. Your heating and cooling systems will still work as they normally  
would. This Clean Cycle™ feature will ensure that the blower fan will run for a  
minimum of fifteen (15) minutes per hour every hour, even if there is no demand  
for either heating or cooling system activation (this includes when the System  
Mode Switch is in the OFF position). The 15 minute required run time is  
accomplished by monitoring the amount of time the heating or cooling system  
has already run the fan within the past hour based upon a total of three 20  
minute segments. If the required 15 minutes per hour of run time has already  
been met by running either the heating or cooling, there will be no additional fan  
run time made by the Clean Cycle™ feature.  
Thank you for your confidence in our product. To obtain the best results  
from your investment, please read these instructions carefully and thoroughly.  
You should become fully acquainted with this thermostat before installing it for  
usage. Follow the installation procedures carefully, and one step at a time. This  
will save you time and minimize the chance of damaging either the thermostat  
or the systems that it controls. These instructions may contain information  
beyond that required for your particular installation. Please save these  
instructions for future reference.  
TYPICAL SINGLE STAGE HEAT PUMP HOOKUP  
C A U T I O N :  
Y
W
O
B
G
RC  
RH  
Be careful not to drop the body or disturb any of the electronic parts.  
CUSTOMER  
RC-RH JUMPER  
PROVIDED  
*
COMPATIBILITY  
SUPPLIED  
JUMPER  
3. Pull your new thermostat apart by opposite pressure on the two thumb tabs  
located on the bottom edge of the thermostat to separate the unit  
G
When the FAN switch is in the ON position, the system's blower fan will be  
The CAG111 can be used with most single-stage 24 volt gas, oil, or electric  
heating and air conditioning systems, single stage heat pumps, or gas Millivolt  
heating systems. It cannot be used with 3 wire zone valves, 120 volt heating  
systems, or multi-stage heat pumps. Ask your dealer for other LUX thermostats  
to control those systems.  
SYSTEM COMMON  
commanded ON, and remain ON while the FAN switch is in the ON position (this  
also includes when the System Mode Switch is in the OFF position).  
NOTE: If you are mounting the base to a soft material like plasterboard, or if  
you are using the old mounting holes, the screws may not hold. Drill a 3/16-  
in (4.8mm) hole at each screw location, and insert the plastic anchors  
provided. Then mount the base as described below.  
REVERSING  
SYSTEM  
FAN  
COMPRESSOR  
VALVE  
XFMR  
NOTE: The FAN switch only works if your system provides a wire for the  
CAG111's "G" terminal.  
CONNECT TO EITHER  
"B" OR "O"  
BUT NOT BOTH  
115VAC  
PUSH BUTTONS:  
FEATURES  
There are four push buttons to the right of the unit's display screen. These  
are used to: adjust the set point temperature, modify the values for user  
changeable options, select the filter duration, and illuminate the attractive  
screen's backlight feature.  
4. Hold the base against the wall. Route the wires through the larger hole  
adjacent to the terminal block. Position the base for best appearance (to hide  
any marks from an old thermostat). Attach the base to the wall with the two  
screws provided.  
Large Easy-to-Read,  
EL (Electro  
WIRING DIAGRAM NOTES:  
1. The BOLD lines are what you should be connecting to the terminals on this  
new thermostat.  
Luminscent)  
Back Light Display  
TEMPERATURE ADJUSTMENT:  
Fan Slide  
CONNECTING THE WIRES  
2. The DASHED lines are optional depending upon your system type.  
3. In many cases, the thin lines shown as “SYSTEM COMMON” will not be  
visible at the thermostat location, they are located with your heating and cooling  
equipment.  
4. For Heat Pumps, use the “B” or “O” wire, NOT BOTH. Typically neither are  
used in a conventional system.  
5. If “Y” and “C” wires are both present, then “C” is a common wire. Tape it off.  
6. If you have a “B” wire in your system which is used as a common wire, tape  
it off. Connecting it to the “B” terminal on this thermostat may damage your  
system and/or the thermostat.  
Switch  
While in HEAT or COOL mode, a single press on either the UP or DOWN  
button causes the set point to start flashing. Once flashing, the set point can be  
altered by pressing either the UP or DOWN button once per degree of change,  
or by holding either button down for at least two seconds to automatically  
increment the set point quickly in the associated direction.  
Quick & Easy  
Temperature  
5. Clean bare wire ends must be inserted between the black  
clamp plate and the brass terminal.  
Change Buttons  
6. Securely tighten all electrical terminal screws (even  
unused ones).  
Filter Button  
Light Button  
Mode Slide  
Switch  
AIR FILTER LIFE COUNTER  
The air filter monitor feature tracks the total amount of fan run time to  
calculate the estimated remaining life of the filter or recommended calendar  
days. The LCD display shows the remaining filter life in an easy to view bar  
graph that can be set to display either days remaining, or percent (%) remaining  
(refer to the "SETUP OPTIONS" section for instructions on changing options for  
this feature). The default filter life is ninety (90) days. This duration may be  
altered by pushing the FILTER button on the front of the thermostat and using  
either the UP or DOWN buttons to cycle through the available choices of: 000,  
30, 60, 90, or 120 days. A selection of 000 will disable the filter counter  
completely and remove the bar graph from the display. When the filter usage  
timer has counted all the way down, it will indicate the need for filter  
replacement by displaying a flashing red box containing the words "FILTER  
CHANGE". If you are in the DAYS mode (which is default), the LCD will count  
down to zero (0) and then back upwards to indicate the amount of days over the  
recommended filter replacement time. If you are in the percent (%) mode, the  
LCD will count down to zero (0) and then back upwards to indicate the amount  
of percentage over the recommended filter usage amount up to 100 percent  
over. To reset the filter counter after replacing your filter, either press and hold  
the FILTER button for at least three (3) seconds, OR press the FILTER button  
once and then the UP or DOWN buttons to change to a different filter duration  
setting.  
The diagrams below are provided for new installations or for unreferenced wires.  
Graphical Filter  
Monitor &  
Indicator  
HEATING ONLY SYSTEMS  
COOLING ONLY SYSTEMS  
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
1 Stage Heat / 1 Stage Cool  
Electronic Digital - Non Programmable  
IAQ Clean CycleTM (Patent Pending)  
Separate Filter Button  
COMPLETING YOUR INSTALLATION  
RC-RH JUMPER  
PROVIDED  
RC-RH JUMPER  
PROVIDED  
7. See the "SETUP OPTIONS" section to configure the thermostat's options.  
Y
W
O
B
G
RC RH  
Y
W
O
B
G
RC RH  
NOTE: Before use, remove the plastic film that is protecting the LCD display  
Gas / Electric Blower Option  
Battery Powered  
Setting Temperature Range 45°F to 90°F  
Clean, Attractive Design  
screen.  
8. Install two (2) Energizer® or DURACELL® "AA" size Alkaline Batteries at this  
time. **For instructions on installing the batteries, see the "BATTERIES AND  
MAINTENANCE" section.  
W
H
4
G
F
RH  
RC  
R
Y
C*  
6
G
F
RH  
RC  
R
V
5
Easy To Install  
EL (Electro Luminescent) Backlight Display  
9. Install your CAG111 thermostat onto its base. To do this, line up the tabs on  
all four corners and gently push the unit straight onto the base. Do not use  
unnecessary force if the body does not snap into place easily. Remove the  
body, line it back up and try again.  
V
5
Comprehensive Graphical Filter Life Monitor in Days or Percent  
Large, Easy To Read Dual-Color Display  
F/C Selectable Temperature Display  
10.Turn the electrical power back ON to both your heating and/or air  
Adjustable Temperature Differential / Cycle Rate  
User Temperature Offset / Display Calibration  
5/2 Minute Selectable Minimum Run/Off Time for Short Cycle /  
Compressor Protection  
HEATING / COOLING SYSTEMS  
HEATING / COOLING SYSTEMS  
conditioning systems.  
4 -WIRES WITH ONE TRANSFORMER  
5 -WIRES WITH TWO TRANSFORMERS  
11.Verify that both systems (and the blower fan) are operating properly. When  
set to a high temperature, the heating system should provide warm air after a  
short time in Heat Mode. Likewise, a cooling system should provide cool air  
after a short time when set to a low temperature in Cool Mode. Usually, sound  
from the furnace and air conditioning units can be heard while either of them is  
running. The rush of moving air should be heard within a short time after either  
has been started.  
RC-RH JUMPER  
PROVIDED  
RC-RH JUMPER  
REMOVED  
DISPLAY ILLUMINATION:  
Pressing the LIGHT button will illuminate the display for easier viewing in dim  
light conditions. The light will remain on for approximately 10 seconds. While  
the light is illuminated, pressing any of the four push buttons will continue the  
lighting and remain on for approximately 10 more seconds.  
G
G
On-Screen Low Battery Indicator  
Y
W
O
B
G
RC RH  
Y
W
O
B
G
RC RH  
1 Year Warranty  
USER TEMPERATURE CALIBRATION:  
C A U T I O N :  
12.Your installation is now complete.  
Y
C*  
6
W
H
4
G
F
RH  
RC  
R
Y
C*  
6
W
H
4
G
F
RC RH  
R
If the ambient temperature displayed on the LCD screen does not exactly  
match a nearby thermometer, or perhaps another thermostat in the home, the  
user has the ability to adjust or shift the displayed temperature. The displayed  
temperature can be altered by up to 5°F (or 3°C) in either direction. This  
adjustment is performed by first placing the System Mode switch to the OFF  
position, then by pressing and holding both the UP and DOWN buttons  
together for at least two (2) seconds, the lower (red) portion of the screen will  
display the word SET, and the default selection of zero (0). Press either the UP  
or DOWN buttons for the associated direction of change. Note: If no buttons  
are pressed within four (4) seconds, the thermostat will return back to normal  
run mode.  
The CAG111 is protected against normal static electric discharges.  
However, in extremely dry weather you should touch a grounded metal  
object before touching the CAG111 to minimize the risk of causing  
damage to the unit.  
V
5
NOTE: If you have an Electric Heat system and the blower does not operate  
after installation, locate the "Gas/Electric" option inside the back of the  
thermostat. Move the jumper to the "Electric" position.  
V
5
CLEAN CYCLE™ (PATENT PENDING)  
LUX's Clean CycleTM (Patent Pending) allows you to enable a forced air system  
to periodically flow air through your system's filter, cleaning the air in your home,  
even when heating or cooling is not being utilized. In CLEAN mode the fan  
maintains the pre-programmed minimum run time of fifteen (15) minutes per  
hour; it may run additional time as required to maintain temperature control.  
The algorithm used avoids additional fan run time when the 15 minute minimum  
has been met over the last hour through temperature control. Minimum fan run  
times are met by running one third of the hourly requirement at twenty (20)  
minute intervals. The minimum fan run time is 15 minutes per hour.  
SETUP OPTIONS  
NOTE: This thermostat is able to be installed and used without changing the  
items in this SETUP OPTIONS section. These are optional, and are provided  
to meet your personal preferences.  
TYPICAL SINGLE STAGE  
HEAT PUMP WIRING  
*CUSTOMER  
SUPPLIED  
JUMPER  
C A U T I O N :  
RC-RH JUMPER  
PROVIDED  
ALL COMMON WIRES MUST  
BATTERIES AND MAINTENANCE  
*
Y
W
O
B
G
RC RH  
BE TAPED OFF!  
HARDWARE RESET  
INSTALLING NEW BATTERIES  
If a “B” wire in your system is a  
The Hardware RESET button restarts your thermostat's internal programming  
and then returns the unit back to normal operation. A press of this button is  
required to recognize any jumper setting changes performed at the back of the  
thermostat on the circuit board. This reset is a white button located inside on  
the back of the thermostat, on the circuit board. It is labeled RESET.  
*
The CAG111 requires batteries to be able to operate your heating or cooling  
system. Replace the batteries when the LO Battery REPLACE indicator appears  
in the display or At Least Once A Year.  
system common, tape it off.  
Connecting it to the thermostat’s “B”  
terminal may damage your system  
or the thermostat.  
INSTALLATION  
Y
C*  
G
F
RH  
RC  
R
1. To access your unit's battery location, remove the front half of the thermostat  
from its base plate by applying opposite pressure on the two thumb tabs  
located on the bottom edge of the thermostat and separate the unit.  
2. The battery tray is located adjacent to the circuit board.  
3. Remove the used batteries from the battery tray (if present) and install two  
new Energizer® or DURACELL® "AA" size Alkaline Batteries into the battery  
compartment. Observe the correct polarity markings shown in the  
compartment.  
PLEASE READ ALL INSTRUCTIONS CAREFULLY BEFORE BEGINNING  
INSTALLATION.  
JUMPER SETTINGS  
If “Y” and “C” are both present,  
*
V
5
There are five (5) headers (or jumpers) located inside the thermostat at the  
rear of the circuit board. These settings can be changed from their default  
values by removing its corresponding black jumper cap and reinstalling the cap  
so that it is positioned on only one (1) of the metal pins, and not both. A change  
to ANY of the jumper settings will not be recognized by the thermostat until a  
HARDWARE RESET is performed. An OPEN jumper means the cap is only on  
one (1) metal pin, and a CLOSED jumper  
“C” is a common wire. DO NOT  
USE IT, TAPE IT OFF!  
C A U T I O N :  
Turn off electricity to the appliance before installing or  
servicing the thermostat or any part of the system. Do not  
turn the electricity back on until the work is completed.  
4. Install your CAG111 thermostat back onto its base plate. To do this, line up  
the tabs on all four corners and gently push the unit straight onto the base. Do  
not use unnecessary force if the body does not snap into place easily. Remove  
the body, line it back up and try again.  
ALL COMMON WIRES MUST BE TAPED OFF.  
CLOSE OPEN  
5MIN  
F
means the cap is on both of the metal pins.  
Each of these jumpers changes a different  
option, the choices for these options are listed  
in a table printed on the circuit board.  
G
Your thermostat is a precision instrument. Please handle it with care.  
JP1  
JP2  
2MIN  
C
TYPICAL 2 OR 3 WIRE HEAT HOOKUP  
24V AC SYSTEMS  
G
Do not short (jumper) across the electric terminals on either the furnace or  
air conditioner to test the system. This may damage the thermostat and void  
JP3 NARROW WIDE  
TECHNICAL ASSISTANCE  
your warranty.  
Y
W
O
B
G
RC  
RH  
A table similar to this one shown here is  
printed on the thermostat's circuit board.  
There may be minor differences in some of the  
JP4  
JP5  
GAS  
DAYS  
ELECT  
%
G
All wiring must conform to all applicable local codes and ordinances.  
If you have any problems installing or using this thermostat, please carefully  
and thoroughly review the instruction manual again. If you require assistance,  
please contact our Technical Assistance Department at 856-234-8803 during  
regular business hours between 8:00AM and 4:30PM Eastern Standard Time,  
Monday through Friday. You can also receive technical assistance online  
anytime day or night at http://www.luxproducts.com. Our web site offers you  
answers to the most common technical questions, and also permits you to  
email your questions to our technical support staff at your convenience.  
G
This thermostat should be limited to a maximum of 1.5 amps; higher current  
OPTIONAL  
FAN LEAD  
RC-RH JUMPER  
may cause damage to the thermostat.  
wording of your specific model, but the function of each option will be the same.  
PROVIDED  
JP1 - 5 OR 2 MINUTE MINIMUM RUN/OFF TIMES  
This setting changes the minimum length of time that the heating or cooling  
system must remain either on or off before it will automatically switch to the  
alternate on or off state. The purpose of this feature is to provide air  
conditioning compressor protection by preventing brief or undesirable on/off  
cycling.  
TOOLS REQUIRED  
SYSTEM COMMON  
G
#1 Phillips screwdriver (medium)  
G
Drill with 3/16-in. (4.8mm) drill bit  
GAS VALVE  
OR HEATER  
SYSTEM  
G
FAN  
Wire stripper/cutter  
XFMR  
THERMOSTAT LOCATION  
115VAC  
WARRANTY  
On replacement installations, mount the new thermostat in place of the old  
one unless the conditions listed below suggest otherwise. On new installations,  
follow the guidelines listed below.  
JP2 - FAHRENHEIT OR CELSIUS DISPLAY FORMAT  
This setting controls whether the temperature is displayed in degrees °F or  
°C on the LCD screen.  
Limited Warranty: If this unit fails because of defects in materials or  
workmanship within one year of the date of original purchase, LUX will, at its  
option, repair or replace it. This warranty does not cover damage by accident,  
misuse, or failure to follow the installation instructions. Implied warranties are  
limited in duration to one year from the date of original purchase. Some states  
do not allow limitations on how long an implied warranty lasts, so the above  
limitation may not apply to you. Please return malfunctioning or defective units  
(including the batteries that were being used) to the participating retailer from  
which your purchase was made, along with proof of purchase. Please refer to  
the Technical Assistance section before returning thermostat. Purchaser  
assumes all risks and liability for incidental and consequential damage resulting  
from the installation and use of this unit. Some states do not allow the  
exclusion of incidental or consequential damages, so the above exclusion may  
not apply to you. This warranty gives you specific legal rights and you may also  
have other rights which vary from state to state. Applicable in the U.S.A. only.  
TYPICAL COOL HOOKUP  
24V AC SYSTEMS  
1. Locate the thermostat on an inside wall, at about 5 ft. (1.5m) above the floor,  
and in a room that is used often.  
JP3 - TEMPERATURE SWING SETTING  
This setting changes the size of the temperature control band with respect to  
the set point. The larger the swing setting, the larger the temperature control  
range will be. Conversely, the smaller the swing setting, the smaller (or tighter)  
the temperature control range will be. This setting is called NARROW and  
WIDE.  
2. Do not install it where there are unusual heating conditions, such as: direct  
sunlight, near a lamp, television, radiator, register, fireplace, on a wall opposite a  
stove, or that carries hot water pipes.  
Y
W
O
B
G
RC  
RH  
RC-RH JUMPER  
3. Do not locate in unusual cooling conditions, such as: on a wall separating an  
unheated room, or in a draft from a stairwell, door, or window.  
4. Do not locate where air circulation is poor, such as: in a corner or alcove, or  
behind an open door.  
5. Do not locate in a damp area. This can lead to corrosion that may shorten  
thermostat life.  
PROVIDED  
JP4 - GAS / ELECTRIC FAN OPERATION  
SYSTEM COMMON  
This setting changes whether the system's blower fan (if applicable) is  
controlled by the thermostat in HEAT mode. Choose ELECTRIC if you have  
electric heating, and require the thermostat to control the fan. Choose GAS if  
you have a gas heating system, this will allow the furnace itself to control the  
operation of the blower fan.  
SYSTEM  
XFMR  
COMPRESSOR  
FAN  
6. Do not install the unit until all construction work and painting has been  
completed.  
115VAC