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3. When replacing an old line voltage wall thermostat, remove it carefully  
to avoid damage to the insulation on the wiring. Check the old  
insulation for cracks, nicks, or fraying and apply certified electrical  
tape where necessary to achieve adequate insulation, or replace the  
wires in an approved fashion.  
TEMPERATURE HOLD:  
A Temperature Hold is similar to an override, but is used for maintaining  
a constant set temperature under manual control, for a longer time  
duration. A Hold is the simplest means to set and maintain a fixed  
temperature. It allows you to set and maintain a fixed temperature  
indefinitely, without concern for programming.  
INSTALLATION AND  
OPERATING INSTRUCTIONS  
4. Use the diagrams shown in the “WIRE IDENTIFICATION AND WIRING  
SCHEMATICS” section of this manual to ensure that the thermostat  
connections are made to the proper wires for your installation.  
Programmable  
A temperature Hold may be used for days, weeks, or even months at a  
time. To enter a Hold, push the HOLD button once, and the word“HOLD”  
will appear in the temperature portion of the screen, along with the  
flashing set temperature. While the set temperature is flashing, push  
either the UP or DOWN button to the new desired set temperature value.  
To cancel a Hold, press and release the HOLD button once again, or  
rotate the dial away from RUN.  
Heating Thermostat  
5. Attach the wires together using the solder-less wire connectors  
(provided), and be sure that all wire connectors are tight and secure.  
Single Pole and Double Pole  
PSPLV512d  
Line Voltage  
52099  
6. Bend the solid conductors, and then push them and the wire  
connectors into the electrical box carefully, providing enough  
clearance behind the mounting screw locations. Secure the  
thermostat base to the electrical box with the mounting screws.  
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.  
ADVANCED FEATURES  
7. Place the thermostat front portion onto the back plate by first catching  
the plastic tabs at the top, and then firmly pressing the bottom of the  
thermostat towards the back plate to latch the halves together.  
Mt. Laurel, New Jersey 08054, USA  
SWING SETTING:  
A thermostat works by turning your heating system on and off whenever  
the room temperature varies from the set-point temperature. The  
amount of this variation is called the “swing”. Your system should cycle  
on about 3 to 6 times per hour. A smaller swing number increases the  
number of cycles per hour, so the room temperature is more precise and  
constant. A larger swing number decreases the number of cycles per  
hour, but saves energy in most cases. To change the Swing setting, turn  
the dial to RUN mode. Hold down the NEXT button and push the HOLD  
button once, then let go of both. A single number will appear on the  
screen. Use the UP/DOWN buttons to change the number value between  
1 and 9. Number 1 is the default setting. Press the NEXT button to  
accept the setting and return to normal Run mode.  
NOTE:  
Thank you for your confidence in our product. To obtain the best results  
from your investment, please read these instructions and acquaint  
yourself with your purchase.  
When you are finished performing your installation and setup  
options, please remove the thin plastic film that is protecting the  
LCD display screen on the front of the thermostat. This plastic  
may or may not be present, and is evident by the appearance of  
fake digits appearing on the display screen.  
COMPATIBILITY  
8. Install two new Energizer® or DURACELL® "AA" size alkaline batteries  
before continuing further. Ensure that the batteries are installed in the  
proper direction as per the markings shown in the battery tray. The  
battery tray is located in the front of the thermostat, behind the door.  
This programmable thermostat is compatible with Single or Double pole,  
120/240 VAC, line voltage electric heating systems up to 15 Amps. The  
heating wattage rating is 1800 Watts (Resistive) for 120 VAC, and 3600  
Watts (Resistive) for 240 VAC. This thermostat can also be used with  
120/240 VAC line voltage Hydronic (hot water) heating systems with  
motors up to 1/4 HP.  
MINIMUM RUN TIME DELAY:  
This is determined by the thermostat, and controls the minimum length  
of time that the thermostat must remain with the Heat either On or Off,  
before it will automatically switch to the alternate On or Off state. This  
feature prevents rapid undesired cycling of the heating equipment. The  
time amount for this delay is fixed at 5 minutes between on or off load  
changes.  
9. Now turn the supply power back on to the heating system.  
On the thermostat screen, ensure that the Power Unit  
WARNING: THIS THERMOSTAT IS NOT COMPATIBLE WITH HEATING  
APPLIANCES WHICH CONTAIN BOTH AN ELECTRIC HEATING ELEMENT  
(RESISTIVE LOAD) AND A BLOWER FAN (INDUCTIVE LOAD) WITHIN  
THE SAME DEVICE.  
Disconnected Indicator (shown at right) is not present on  
the display screen. If it is, remove the front half and try  
mating the front half to the back half again.  
P
This thermostat cannot be used with: cooling systems, typical 24 volt  
systems, or heat pump systems. Ask your dealer for other LUXPRO  
thermostats to control those systems.  
NOTE:  
This thermostat is protected against normal static electric  
discharges, however to minimize the risk of damaging the unit in  
extremely dry weather, touch a grounded metal object before  
touching your thermostat.  
PROGRAMMING  
For the two program types that are described below, this thermostat  
provides four independent periods per day for Heat mode, they are:  
MORN, DAY, EVE, and NITE. Each period ends at the start time of the  
following period. When you install batteries for the first time, or perform  
a Software Reset, a default temperature program (shown below) is  
inserted into all four of the program periods. You can use this default  
program, or alter any portion of it to suit your own preferences. When  
setting the program items, the value that is flashing is the item that you  
can change at that time.  
NOTE: Disconnection Type: “TYPE 1B”.  
FEATURES  
SETUP OPTIONS  
LCD Display  
Temperature  
UP/DOWN  
buttons  
The settings, options, and  
TU  
UP  
components listed in this section  
below are located on the rear of the  
H
E
A
T
MORN  
DAY  
EVE  
º
OPTION  
SWITCHES  
:
72  
5 36  
PM  
NIGHT  
DOWN  
ON  
thermostat, on the circuit board.  
LUX  
HARDWARE  
HOLD, NEXT,  
and RESET  
buttons  
PERIOD  
MORN  
DAY  
EVE  
NITE  
TIME / TEMPERATURE  
6:00 AM 70 °F (21 °C)  
8:00 AM 62 °F (17 °C)  
6:00 PM 70 °F (21 °C)  
10:00 PM 62 °F (17 °C)  
Speed Dial®  
RESET  
1
2
BUTTON  
OPTION SWITCHES:  
SET  
WEEKDAY  
PROGRAMS  
SET  
WEEKDAY  
PROGRAMS  
There is a square box with 2 small  
switches, located to the right side  
of the circuit board. Each switch  
controls a different setting  
SW  
#1  
F
#2  
HOLD  
12HR  
24HR  
RESET  
C
NEXT  
SET  
DAY/TIME  
RUN  
OPTION  
TABLE  
depending on the position of the  
switch. The individual switches are  
labeled as 1 and 2, and there is a  
corresponding table printed on the  
circuit board to show the possible  
options for each of the two switch  
positions.  
Battery  
Compartment  
SET WEEKDAY PROGRAM:  
Rotate the dial to WEEKDAY PROGRAM. You will be programming all  
five weekdays at the same time. The first period is MORN. Using the UP  
and DOWN buttons, set the start time for this period, and then push the  
NEXT button to proceed. Now set the desired set temperature for the  
MORN period using the UP and DOWN buttons, and push NEXT to  
proceed. Now set the start time and set temperature for the DAY period,  
pushing NEXT after each to advance. Continue with these same steps to  
set the start time and set temperature for the EVE, and NITE program  
periods. When you are finished setting all four periods, you may  
continue pushing the NEXT button through all four periods to review  
your entries, or turn the dial to RUN if you are finished.  
THERMOSTAT CIRCUIT BOARD  
SIMPLIFIED INSTRUCTIONS  
Quick  
Reference  
Instructions  
TEMPERATURE SCALE (Option  
Switch #1):  
This determines how the thermostat displays all temperatures on the  
screen. Switch position OFF is F°, and ON is C°.  
TIME FORMAT (Option Switch #2):  
This determines how the thermostat displays the clock and all other  
times on the screen. Switch position OFF is 12 HR, and ON is 24 HR.  
• Heating Only  
• Battery Free Memory Storage  
• Temporary Temperature  
Override  
SET WEEKEND PROGRAM:  
• Armchair Programmable  
• 3 Year Warranty  
Turn the dial to WEEKEND PROGRAM. You will be programming both  
Saturday and Sunday at the same time. You will begin with the start  
time of the MORN period, and use the same procedures that were  
performed while setting the Weekday Program periods, using the NEXT  
button to advance through the values. Return the dial to the RUN  
position when you are finished.  
HARDWARE RESET:  
• Temperature Hold  
• On Screen Low Battery Indicator  
• Attractive Design  
The hardware reset is a push button that is located near the center of the  
circuit board. This reset button is used by the thermostat to read the  
position of the option switches. When either of the two option settings  
above are changed, the hardware reset button must be pushed for the  
change to be recognized. This can also be used if the thermostat is  
exhibiting any erratic behavior. User temperature programs are not  
erased when a hardware reset is performed, however you will have to set  
the clock and day of the week.  
• F/C Temperature Display  
• 12/24 Hr Clock Display  
• Adjustable Temperature Swing  
• Exclusive LUX Speed Dial®  
• 5/2 Day Programming  
• 4 Periods Per Day  
BATTERIES AND MAINTENANCE  
INSTALLATION  
The batteries should be replaced AT LEAST once per year, or sooner if  
the LOW BATT battery symbol appears in the lower left portion of the  
display screen as shown. To replace the batteries in the thermostat,  
open the front door of the unit. The battery compartment is located just  
below the rotary dial and push buttons. Pull the  
Please read ALL of these instructions carefully before beginning  
installation. Save them for future reference.  
FRONT PANEL ITEMS  
W A R N I N G  
SOFTWARE RESET:  
battery compartment out, starting with the top  
The Software Reset is a small recessed push button that is located to the  
right of the NEXT and HOLD buttons. This button can be pushed with a  
pencil or the end of a paper clip. The software reset clears all of the  
user temperature programs, and all other software preferences to their  
default values. You should write down your heating program times and  
temperatures prior to using the Software Reset.  
• For applications such as baseboard electric heat (resistive), the  
maximum load is 15 Amps, from a 20 Amp circuit breaker. For  
heat applications such as a hot water circulator pump (inductive),  
the maximum load is 1/4 HP @ 120 Volts, and 1/2 HP @ 240 Volts.  
LO BATT  
edge. Remove the used batteries from the battery  
tray and discard appropriately.  
Install two new Energizer® or DURACELL®, “AA” size alkaline batteries  
into the battery tray. Observe the polarity markings shown in the battery  
compartment to ensure proper installation. When finished, re-install the  
battery compartment by first seating the bottom into its alignment pins,  
and pivoting the top in towards the thermostat to snap the latch back  
into place.  
• Do not use with circuit breakers that are rated higher than 20  
Amps. Maximum load for this thermostat MUST NOT exceed 1800  
Watts @ 120 Volts (15 Amps), or 3600 Watts @ 240 Volts (15  
Amps), otherwise a potential fire hazard exists.  
PUSH BUTTONS:  
There are four primary push buttons on the front of the thermostat: The  
UP and DOWN arrow keys, the NEXT button, and the HOLD button.  
ROTARY DIAL:  
• WARNING: This product should be installed by a licensed electrician.  
Do not attempt to install it unless you are completely familiar with  
line-voltage wiring. If improperly handled, there is a risk of electric  
shock hazard, which may cause serious injury or death.  
The LUX Speed Dial® provides an easy way to quickly navigate between  
the different programming areas. This rotary dial has four individual  
positions.  
TECHNICAL ASSISTANCE  
If you have any problems installing or using this thermostat, please  
carefully and thoroughly review the instruction manual. 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  
most common technical questions, and also permits you to email your  
questions to our technical support staff at your convenience.  
HEAT / OFF SWITCH:  
This switch is located on the front of the power unit (back half of  
thermostat). To access this switch, separate the front and back halves of  
the thermostat by pressing on the thumb tab under the bottom of the  
thermostat and pulling the front of the thermostat away from the back  
half. In the winter, set the power switch to “HEAT” to control your  
heating system. Through the summer months when heating is not  
required, set the switch to “OFF” to prevent your heating system  
components from turning on.  
MOUNTING LOCATION:  
Install a vertical, electrical switch box for mounting the thermostat  
approximately 5 Feet (1.5 Meters) above the floor on an inside wall  
where the thermostat will be exposed to average room temperature. The  
use of a “deep” style switch box will make the installation easier by  
providing more room for making the wiring connections. The thermostat  
must be placed away from concealed warm or cold water pipes, air  
ducts, or drafts from hallways, direct sunlight, fireplaces, or stairways in  
order to sense room temperature properly. Do not place the thermostat  
directly above any of the heating elements.  
WARRANTY  
OPERATING INSTRUCTIONS  
Limited Warranty: If this unit fails because of defects in materials or  
workmanship within three years 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 installation instructions.  
Implied warranties are limited in duration to three years 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 to the location from  
which the purchase was made, along with proof of purchase. Please  
refer to "TECHNICAL ASSISTANCE" before returning thermostat.  
Purchaser assumes all risks and liability for incidental and consequential  
damage resulting from 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. and Canada only.  
SET DAY/TIME:  
Rotate the dial to the SET DAY/TIME position. The day of the week will  
start flashing on the display. With the day flashing, press the UP button,  
once for each day, to advance to the desired day of the week. Press the  
NEXT button; this should cause the time to start flashing and the day to  
remain on steady. Using either the UP or DOWN buttons, adjust the  
clock to the desired time. The clock digits will increment rapidly if either  
the UP or DOWN buttons are held in the pressed position.  
CAUTION  
Turn off electricity to your heating system prior to  
installing this thermostat, or servicing any part of  
the system. Do not turn electricity back on until  
installation is fully completed.  
F
OF  
WIRING:  
TEMPERATURE OVERRIDE:  
A Temperature Override occurs in Run mode, anytime the user adjusts  
the set temperature to a value other than what the stored program set  
temperature is for that day and time. When the thermostat is in an  
Override, the word “OVERRIDE” will appear in the bottom of the display  
screen. The thermostat will maintain thermal control using this new set  
temperature, until the start of the next program period time is reached.  
At that time, the set temperature will return to the value stored in  
memory for that new program period. To enter an Override, push either  
the UP or DOWN button once and the set temperature will begin to flash.  
Push either the UP or DOWN button to the desired set temperature value.  
An Override may be cancelled by rotating the dial or by initiating a HOLD.  
1. Disconnect power before removing your old thermostat (if applicable).  
Double check that this thermostat is rated for the voltage and  
amperage to be switched.  
2. Remove the front portion of the thermostat by carefully pressing the  
button at the bottom of the thermostat and swinging the body up and  
away.  
MERCURY WARNING AND RECYCLING NOTICE  
Mercury is considered to be a hazardous material. If this product is  
replacing a thermostat that contains mercury in a sealed tube,  
contact your local waste management authority for instructions  
regarding recycling and proper disposal. It may be unlawful in your  
state to place it in the trash.  
NOTE:  
Wiring performed must comply with all applicable national electrical  
codes and local ordinances for your particular area.  
©
2 0 1 1 L U X P R O D U C T S C O R P O R A T I O N . A L L R I G H T S R E S E R V E D  
href="
52099  
(PSPLV512d) ENGLISH - WIRE IDENTIFICATION AND WIRING SCHEMATICS  
RED  
BLACK  
RED  
BLACK  
L1  
LINE [IN]  
LOAD [OUT]  
L1  
L I N E =  
R E D  
L O A D =  
B L A C K  
LINE [IN]  
LOAD [OUT]  
THERMOSTAT  
THERMOSTAT  
RED  
BLACK  
RED  
BLACK  
L2  
LINE [IN]  
(NOT USED)  
LOAD [OUT]  
(NOT USED)  
L2  
LINE [IN]  
LOAD [OUT]  
NEUTRAL (120V)  
L1 L2  
[IN]  
L2 L1  
[OUT]  
HEAT ELEMENT  
(LOAD)  
HEAT ELEMENT  
(LOAD)  
L1  
L2  
L1 NEUTRAL  
CIRCUIT  
PANEL  
(LINE)  
SINGLE POLE  
120 VOLT INSTALLATION  
CIRCUIT  
PANEL  
(LINE)  
DOUBLE POLE  
240 VOLT INSTALLATION  
WIRING DIAGRAM NOTE:  
This Double Pole thermostat model may be used in either Single Pole, or Double Pole wiring configurations. Only the LINE 1 (IN) and LOAD 1 (OUT) terminals are switched during normal  
temperature cycling. If this thermostat is used in a Single Pole configuration, the unused L2 LINE (IN) and L2 LOAD (OUT) wire ends must be securely insulated using the additional wire  
connectors provided.  
FIRE HAZARD WARNING:  
DO NOT use the supplied wire nuts if you are connecting this thermostat to aluminum wiring.  
All connections made to aluminum conductors must be made using approved CO/ALR solder-less wire connectors.  
(PSPLV512d) FRANÇAIS – SCHÉMAS D'IDENTIFICATION DES FILS ET DU CÂBLAGE  
ROUGE  
NOIRE  
ROUGE  
NOIRE  
L1  
LIGNE [ENTRÉE]  
CHARGE [SORTIE]  
L1  
L I G N E =  
R O U G E  
C H A R G E =  
N O I R E  
LIGNE [ENTRÉE]  
CHARGE [SORTIE]  
THERMOSTAT  
THERMOSTAT  
ROUGE  
NOIRE  
L2  
L2  
(NON UTILISÉ)  
(NON UTILISÉ)  
LIGNE [ENTRÉE]  
CHARGE [SORTIE]  
NEUTRE (120 V)  
L1 L2  
[IN]  
ÉLÉMENT  
CHAUFFANT  
(CHARGE)  
ÉLÉMENT  
CHAUFFANT  
(CHARGE)  
L2 L1  
[OUT]  
L1  
L2  
L1 NEUTRE  
PANNEAU  
DE CIRCUIT  
(LIGNE)  
INSTALLATION UNIPOLAIRE  
120 VOLTS  
INSTALLATION BIPOLAIRE  
240 VOLTS  
PANNEAU  
DE CIRCUIT  
(LIGNE)  
NOTE DU DIAGRAMME DE CÂBLAGE :  
Ce modèle de thermostat bipolaire peut être utilisé dans des configurations de câbles unipolaires ou bipolaires. Seules les bornes de la LIGNE 1 (ENTRÉE) et de la CHARGE 1 (SORTIE) sont  
branchées lors d'un cycle de température normal. Si ce thermostat est utilisé dans une configuration unipolaire, les extrémités de fils L2 LIGNE (ENTRÉE) et L2 CHARGE (SORTIE)  
inutilisées doivent être bien isolées en utilisant les raccords supplémentaires fournis.  
AVERTISSEMENT DE DANGER D'INCENDIE :  
N'utilisez PAS les serre-fils fournis si vous branchez ce thermostat à un câblage d'aluminium.  
Tous les raccords aux conducteurs en aluminium doivent utiliser des raccords sans soudure approuvés CO/ALR.  
(PSPLV512d) ESPAÑOL – IDENTIFICACIÓN DE CABLES Y DIAGRAMAS DE CABLEADO  
ROJO  
NEGRO  
ROJO  
NEGRO  
L1  
L1  
LÍNEA [ENTRADA]  
CARGA [SALIDA]  
L Í N E A =  
R O J O  
C A R G A =  
N E G R O  
LÍNEA [ENTRADA]  
CARGA [SALIDA]  
TERMOSTATO  
TERMOSTATO  
ROJO  
NEGRO  
L2  
L2  
(NO SE USA)  
(NO SE USA)  
LÍNEA [ENTRADA]  
CARGA [SALIDA]  
NEUTRAL (120V)  
L1 L2  
[IN]  
ELEMENTO  
CALEFACTOR  
(CARGA)  
ELEMENTO  
CALEFACTOR  
(CARGA)  
L2 L1  
[OUT]  
L1  
L2  
L1 NEUTRAL  
PANEL DE  
CIRCUITO  
(LÍNEA)  
INSTALACIÓN DEL POLO  
PANEL DE  
CIRCUITO  
(LÍNEA)  
INSTALACIÓN DEL POLO  
DOBLE DE 240 VOLTIOS  
SENCILLO DE 120 VOLTIOS  
NOTA DEL DIAGRAMA DEL CABLEADO:  
Este modelo de termostato de doble polo puede usarse con configuraciones de cableado con polo sencillo o doble. Sólo las terminales LÍNEA 1 (ENTRADA) y CARGA 1 (SALIDA) se conectan  
en el ciclo normal de temperatura. Si este termostato se usa con una configuración de cableado con polo sencillo, los extremos de los cables de la LÍNEA L2 (ENTRADA) y CARGA L2  
(SALIDA) que no se utilicen deben aislarse adecuadamente con la ayuda de los conectores de cable adicionales que vienen incluidos.  
ADVERTENCIA SOBRE RIESGO DE INCENDIO:  
NO use las tuercas de alambre suministradas si usted está conectando el termostato a un cableado de aluminio.  
Todas las conexiones a conductores de aluminio deben hacerse usando conectores de cable sin soldadura que tengan la aprobación CO/ALR.