Lux Products Thermostat TX500b User Manual

TX500b SERIES  
®
SMART TEMP ELECTRONIC THERMOSTAT  
MO  
UP  
MO  
UP  
M
ORN  
DA  
V  
GHT  
H
E
A
T
M
ORN  
DA  
EV  
NIGHT  
H
E
A
T
Y
Y
E
E
PM  
PM  
DOWN  
DOWN  
T  
EEKDA  
PROGRAM  
T  
NDA  
OGRAM  
SET  
WEEKDA  
PROGRAM  
SET  
SUNDAY  
PROGRAM  
Y
Y
Y
RESET  
RESET  
FAN  
FAN  
HEAT  
HEAT  
AUTO  
ON  
AUTO  
ON  
OFF  
OFF  
HOLD  
HOLD  
COOL  
COOL  
/
RUN  
SET  
DAY/TIME  
RUN  
NEXT  
NEXT  
500  
500  
n
P
a
t
e
n
t
s
P
e
n
d
i
n
g
P
a
t
e
n
t
s
P
e
d
i
n
g
SIMPLIFIED INSTRUCTIONS  
TO SET PROGRAMS  
Rotate Dial to SET  
SIMPLIFIED INSTRUCTIONS  
TO SET TIME  
&
DA  
Y
TEMPORARY TEMPERATURE  
OVERRIDE  
TO SET TIME  
&
DAY  
TO SET PROGRAMS  
• Rotate Dial to SET  
TEMPORARY TEMPERATURE  
Rotate Dial to set DAY/TIME.  
Rotate Dial to set DAY/TIME.  
OVERRIDE  
Complete, Easy To Read Programming And Installation Instructions  
I M P O R T A N T !  
Thank you for your confidence in our product. To obtain the best  
results from your investment, please read this manual and acquaint  
yourself with your purchase before installing your new thermostat.  
READ THE  
TION  
ALLA  
INST  
Then follow the installation procedures, one step at a time. This  
will save you time and minimize the chance of damaging the  
thermostat and the systems it controls. These instructions may  
contain information beyond that required for your particular instal-  
lation. Please save for future reference.  
INSTRUCTIONS  
.
FIRST  
The Set Temperature  
LUX  
Speed Dial®  
Fan Switch  
Liquid  
Crystal  
Display  
FEATURES  
The Active  
Program Period  
The TX500 can be used with most 24  
volt gas, oil or electric heating and air  
conditioning systems or gas millivolt  
heating systems. It cannot be used  
with 120 volt heating systems or heat  
pumps. Ask your dealer for other LUX  
thermostats to control those systems.  
System Switch  
MO  
UP  
MORN  
H
E
A
T
DAY  
EVE  
NIGHT  
PM  
DOWN  
SET  
SET  
WEEKDAY  
PROGRAM  
SUNDAY  
PROGRAM  
RESET  
HOLD  
FAN  
HEAT  
The TX500 is programmable. There  
are four programming periods per day.  
Each period can be programmed  
separately.  
AUTO  
OFF  
ON  
COOL  
SET  
DAY/TIME  
RUN  
NEXT  
500  
P a t e n t s P e n d i n g  
You can use the built-in time/  
temperature programs, or alter  
them to suit your schedule. The  
SIMPLIFIED INSTRUCTIONS  
TEMPORARY TEMPERATURE  
OVERRIDE  
•Press UP/DOWN to  
TO SET TIME  
&
DAY  
TO SET PROGRAMS  
• Rotate Dial to SET  
WEEKDAY,  
• Rotate Dial to set DAY/TIME.  
• Press UP to change  
current day.  
• Press NEXT.  
• Press UP/DOWN to set time.  
adjust set temperature.  
To clear OVERRIDE press  
UP/DOWN until original set  
temperature appears or wait  
for the start tf the next period.  
SATURDAY or  
SUNDAY PROGRAM.  
• Press UP/DOWN to  
adjust start time.  
TX500 provides separate programming  
for weekdays and weekends — for both  
heating and cooling. You can override the  
programmed temperatures for as little as one  
programming period or for an entire vacation.  
• Press NEXT.  
Rotate the  
dial to  
the RUN  
position  
to close  
the door.  
• Press UP/DOWN to  
adjust temperature.  
• Press NEXT.  
• Repeat as needed or  
rotate dial to RUN to  
stop Programming.  
TEMPERATURE HOLD  
• Press HOLD. Adjust temperature  
as desired with UP/DOWN.  
To clear, press HOLD again.  
Thermostat  
Body/Sub-base  
Thermostat Cover  
In cool weather, when the system switch is set to HEAT, the TX500 will maintain cooler “set back”  
room temperatures to save energy. It will then change to warmer comfort” settings - all automatically, at  
specified times during the day.  
In warm weather, when the system switch is set to COOL, the TX500 will maintain warmer “set back” room  
temperatures to save energy. It will then change to cooler “comfort” settings - all automatically, at specified  
times during the day.  
A large liquid crystal display shows time, day of the week, and room and set temperatures.  
5/2 Minute Selectable Minimum Run/Off Time for Short Cycle/Compressor Protection  
Two Energizer® or DURACELL® AA” alkaline batteries (not included) are used to retain your time and  
.
temperature programs.  
C
A
U
T
I
O
N
Your thermostat is a precision instrument. Please handle it with care.  
Turn off electricity to the appliance before installing or servicing thermostat or any part of the system.  
Do not turn electricity back on until work is completed.  
• Do not short (jumper) across electric terminals at control on furnace or air conditioner to test the  
system. This will damage the thermostat and void your warranty.  
• All wiring must conform to local codes and ordinances.  
• This thermostat is designed for use with 24 volt and millivolt systems. The thermostat should be  
limited to a maximum of 1.0 amps; higher amperage may cause damage to the thermostat. If you are  
in doubt, call your utility company.  
© COPYRIGHT 2006 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED  
TEMPERATURE OVERRIDE AND TEMPERATURE HOLD  
OPERATION  
These features let you change the current Set Temperature without changing the programs  
stored in your thermostat’s memory.  
This thermostat is armchair programmable.” You can make any program or  
setting changes with the thermostat body off or on the wall thermostat base.  
TEMPORARY TEMPERATURE OVERRIDE  
The TX500 alternately displays the current time and the room temperature. It also displays  
the day of the week and the currently active control program that is controlling the temperature:  
MORN, DAY, EVE, or NIGHT.  
The set point temperature will appear in the right side of the display. In the winter, set the  
system switch to HEAT to control your heating system. In the summer, set the switch to COOL  
to control your air conditioner. In spring and fall or when windows are open, you can set the  
system switch OFF.  
Setting the FAN switch to AUTO automatically runs your system’s fan during heating and  
cooling. Setting the FAN switch to ON runs your system’s fan continuously even without  
heating or cooling.  
Press UP/DOWN to change the current temperature  
setting. The OVERRIDE indicator appears on display.  
The Override feature will be automatically canceled  
at the start of the next program period.  
To cancel OVERRIDE prior to next program  
period press UP/DOWN until original set temperature  
appears. OVERRIDE indicator will disappear  
from display.  
M
O
MORN  
DAY  
H
E
A
T
EVE  
PM  
NIGHT  
E
OVERRID  
VACATION TEMPERATURE HOLD  
N
O
T
E
The FAN switch works only if your system provides a wire for the TX500’s G” terminal.  
Press HOLD. Adjust temperature as  
desired with UP/DOWN.  
Temperature setting will not change even  
after next program period begins.  
M
O
MORN  
DAY  
H
E
A
T
THE BUILT-IN ENERGY STAR® PROGRAMS  
EVE  
PM  
NIGHT  
HOLD  
To clear, press HOLD again.  
PERIOD  
HEAT  
COOL  
Push in the RESET key. This  
sets the built-in heating and cooling  
programs. To review the built-in  
programs, rotate the dial to SET  
WEEKDAY PROGRAM or SET  
WEEKEND PROGRAM.  
WEEKDAYS  
preprograms  
MORN  
DAY  
EVE  
6:00 AM 70° 6:00 AM 78°  
8:00 AM 62° 8:00 AM 85°  
6:00 PM 70° 6:00 PM 78°  
ADVANCED FEATURES  
NIGHT 10:00 PM 62° 10:00 PM 82°  
You can use the built-in programs  
as shown, or change them as you  
wish. Each day is divided into four  
periods. Each period has its own  
starting time  
TEMPERATURE SWING  
MORN  
DAY  
EVE  
6:00 AM 70° 6:00 AM 78°  
8:00 AM 62° 8:00 AM 85°  
6:00 PM 70° 6:00 PM 78°  
A thermostat works by turning your heating or cooling system on and off whenever the room  
temperature varies a certain number of degrees from the set-point temperature. This variation is the  
swing.”  
SAT & SUN  
preprograms  
NIGHT 10:00 PM 62° 10:00 PM 82°  
Your system should cycle on about 3 to 6 times per hour. A smaller swing number increases the  
number of cycles, so room temperature is more constant. A larger swing number decreases the  
number of cycles, to save energy in most cases.  
and temperature.  
The dial must be in the RUN position to close the door.  
Press together  
SWING SETTINGS  
PROGRAMMING THE TX500  
To change  
swing  
Dial must be in  
the run position  
You can change any of the preset times and/or temperatures to suit your schedules for the  
weekday and weekend programs. Each day is divided into four periods: Morning, Day,  
Evening, and Night. Each period is programmed for HEAT and for COOL.  
A blank programming chart is provided below for you to record your temperature settings in  
that chart.  
MORN  
DAY  
EVE  
NIGHT  
Press to set.  
M
O
T
U
W
E
T
H
FR  
Select HEAT to program the TX500 for  
controlling your heater.  
MORN  
DAY  
H
E
A
T
5 MIN/ 2 MIN MINIMUM ON/OFF TIME  
HEAT  
OFF  
EVE  
Your thermostat has an internal timer built in to protect your compressor. The timer forces a minimum on/off  
time of 5 minutes. You may change this minimum on/off time to 2 minutes. To accomplish this, place the  
jumper labeled JP3 over both pins. You must press the small reset button on the face of the thermostat for  
the changes to take effect.  
NIGHT  
AM  
OR Select COOL to program the TX500 for  
controlling your air conditioner.  
COOL  
Rotate dial to SET WEEKDAY PROGRAM. To program the WEEKEND, rotate the dial to SET  
WEEKEND PROGRAM. With dial on SET WEEKDAY PROGRAM, you will see this display.  
CHANGING FROM °F TO °C AND A 12HR CLOCK TO A 24HR CLOCK  
WARNING: Making these changes will require you to  
reset  
the thermostat. Copy any of your customized  
programs onto the chart below. This will be your  
reference to reenter the programs afterwards.  
Located at the top center of the thermostat are  
two jumpers - C/F and 12/24.  
To change to Celsius - remove jumper - C/F.  
To change to a 24HR clock - remove jumper- 24/12H.  
Press the reset key on the front of the thermostat for  
changes to take effect.  
RC RH  
W
Y
G
CLOSE OPEN  
JP3 5MIN 2MIN  
To change the start time  
for MORN.  
To change the start time  
for EVE.  
JP2  
F
C
ELEC  
GAS  
JP1 12HR 24HR  
To program temperature.  
To program temperature.  
JP3  
JP2  
JP1  
To change the temp.  
setting for MORN.  
To change the temp.  
setting for EVE.  
To move to DAY.  
To move to NIGHT.  
To change the start time  
for NIGHT.  
To change start time  
for DAY.  
To program temperature.  
To program temperature.  
Reprogram as necessary.  
To change the temp.  
setting for NIGHT.  
To change the temp.  
setting for DAY.  
Rotate dial to RUN position to  
start the programs.  
To move to EVE.  
P R O G R A M M I N G  
C H A R T  
SETTING THE TIME AND DAY  
DAY  
PERIOD  
HEAT  
COOL  
TIME  
TEMP.  
TIME  
TEMP.  
SU  
DAY  
C
A
U
T
I
O
N
MON.  
THRU  
FRI.  
MORN  
DAY  
TEMP  
The TX500 is protected against normal static electric discharges.  
However, in extremely dry weather you should touch another metal  
object before the TX500 to avoid potential loss of programs.  
PM  
EVE  
NIGHT  
MORN  
DAY  
Open the drop down door on the front of the thermostat. Rotate the dial to the SET  
DAY/TIME position. You should see the display pictured above with a flag pointing to a day of  
the week flashing. When you are finished setting the day and time, rotate the dial to RUN to  
return to normal operation or to another position to continue programming.  
SAT.  
and  
EVE  
SUN.  
NIGHT  
To change  
current day.  
To set current time. The  
time (e.g."12:00 AM")  
will be flashing.  
To change the  
current time.  
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