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INSTALLATION  
INSTALLATION INSTRUCTIONS FOR  
W A R N I N G  
• This Thermostat is a line voltage (120 / 240 Vac) control. Do not  
install it unless you are completely familiar with house wiring. If  
improperly handled, there can be a risk of electric shock hazard  
which may cause serious injury or death.  
• The thermostat is rated for normal full load current on a dual  
residential 20A circuit breaker or fuse block. Do not use on circuits  
protected by higher-rated over-current protection devices. Some  
sustained fault conditions can cause product failure.  
ELV1/PSPLV510  
Programmable Line Voltage Thermostat  
LUX PRODUCTS CORPORATION • Mt. Laurel, New Jersey 08054, USA  
43331-04  
• Do NOT connect to voltage different from the device rating.  
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.  
C A U T I O N  
• Disconnect power supply before making wire connections to  
prevent electrical shock or equipment damage.  
• All wiring must comply with applicable codes and ordinances.  
• Thermostats are designed to be used with appliances having a limit  
control.  
• Maximum load for this thermostat MUST NOT EXCEED 3800W,  
otherwise a potential fire hazard exists.  
Location:  
Install a vertical switch box for mounting the thermostat  
approximately 1.5 m (5 ft.) above the floor on an inside wall where the  
thermostat will be exposed to average room temperature. The  
thermostat must be placed away from concealed warm or cold water  
pipes, air ducts, or drafts from hallways, fireplaces or stairways to  
sense temperature properly. Do not place the thermostat above the  
heater.  
WIRING  
1. Disconnect power while installing. Double check that the  
thermostat is rated for the voltage and amperage load to be  
controlled.  
2. Remove the cover by carefully pressing the button at the bottom of  
the thermostat and swinging the body up and away.  
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.  
4. Attach the wires with solderless wire connectors (provided). Be  
sure that all wire connectors are tight.  
For Use On:  
Batteries  
• Heating Only 120/240 Vac Single  
Pole Applications  
• Two Energizer® or DURACELL®  
“AA” alkaline batteries  
(not included)  
• Baseboard, Ceiling Cable and  
other Radiant Heat  
Programming  
• Preprogrammed - 4 Periods per  
day  
• 5 / 2 Programming  
• Weekdays/Weekends can be  
different  
1° / 1C Changeable  
• Temporary Temperature Override  
• Vacation Hold  
Not For Use On:  
• Double Pole Applications  
• Heating/Cooling or Cooling Only  
• Low Voltage (24Vac) Systems  
Electrical Rating  
16A at 120/240 Vac  
1900W at 120Vac  
(Non-Inductive)  
3800W at 240 Vac  
(Non-Inductive)  
Dimensions  
• 4.7” T x 2.7” W x 2.4” D  
• 1.4” D from wall surface  
Temperature Differential  
Wall Plate  
• 4.8” W x 5.0” H Wallplate  
Included  
11° °actory Preset; Adjustable  
© COPYRIGHT 2004 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED  
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OPERATION  
This thermostat is “armchair programmable.” You can make any program or  
setting changes with the thermostat body off or on the wall thermostat base.  
The thermostat 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.  
CAUTION: Do not short the 120 / 240 Vac wires with the thermostat.  
The Built-In Programs  
This will damage the thermostat and void the warranty.  
Push in the RESET key. This  
PERIOD  
HEAT  
sets the built-in heating  
programs. To review the built-in  
programs, rotate the dial to SET  
WEEKDAY PROGRAM or SET  
WEEKEND PROGRAM.  
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  
and temperature.  
WARNING: To avoid the risk of fire hazard, all connections to  
aluminum conductors must be made using approved  
CO/ALR solderless wire connectors. Do not use the  
supplied solderless wire connectors.  
WEEKDAYS  
preprograms  
MORN  
DAY  
EVE  
6:00 AM 70°  
8:00 AM 62°  
6:00 PM 70°  
NIGHT 10:00 PM 62°  
MORN  
DAY  
EVE  
6:00 AM 70°  
8:00 AM 62°  
6:00 PM 70°  
5. Bend the solid conductors, then push them and the wire connectors  
into the electrical box. Secure the thermostat base to the electrical  
box with the mounting screws.  
WEEKENDS  
preprograms  
NIGHT 10:00 PM 62°  
6. Snap the cover in place.  
The dial must be in the RUN position to  
close the door.  
7. Turn the power on.  
WARNING: Use Energizer® or DURACELL®  
Alkaline Batteries Only.  
INSTALLING BATTERIES  
Programming the thermostat  
The thermostat requires batteries to operate your furnace and retain its  
programming in memory. Replace the batteries when the LO BAT  
indicator appears in the display or at least once a year.  
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.  
A blank programming chart is provided for you to record your  
temperature settings in that chart.  
NOTE: When replacing batteries, you have approximately 1 minute  
before the programs are lost.  
M
O
T
U
W
E
T
H
F
R
MORN  
DAY  
H
E
A
T
1. Remove the fresh batteries from their package.  
2. Open the front door of the thermostat and tilt out the battery  
compartment.  
EVE  
NIGHT  
AM  
3. Remove the used batteries if necessary.  
4. Install two new Energizer® or DURACELL® "AA" size alkaline batteries  
in the battery compartment. Observe the polarity marking shown in  
the compartment.  
5. Place the battery compartment back in the thermostat.  
6. Close the door.  
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.  
To change the start time  
for MORN.  
To change the start  
time for EVE.  
DOWN  
DOWN  
UP  
UP  
Note: If this is the first time you are installing batteries, the thermostat  
will display “SUN 12:00 AM”. Within 90 seconds, the thermostat will  
begin to display the room temperature alternately with the time. To  
correct the display, see SETTING THE TIME AND DAY.  
To program temperature.  
NEXT  
UP  
To program temperature.  
To change the temp.  
setting for MORN.  
To move to DAY.  
To change start time  
for DAY.  
To program temperature.  
To change the temp.  
setting for DAY.  
To move to EVE.  
NEXT  
UP  
To change the temp.  
DOWN  
DOWN  
setting for EVE.  
To move to NIGHT.  
To change the start  
time for NIGHT.  
To program temperature.  
To change the temp.  
setting for NIGHT.  
NEXT  
UP  
NEXT  
UP  
DOWN  
DOWN  
NEXT  
UP  
NEXT  
UP  
DOWN  
DOWN  
Rotate dial to RUN position to  
NEXT  
start the programs.  
© COPYRIGHT 2004 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED  
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Setting the TIME and DAY  
P R O G R A M M I N G  
C H A R T  
C
A
U
T
I
O
N
DAY  
PERIOD  
TIME  
TEMP  
M
O
The thermostat is protected against normal static electric  
discharges. However, in extremely dry weather you should  
touch another metal object before the thermostat to avoid  
potential loss of programs.  
MORN  
DAY  
MORN  
DAY  
EVE  
MONDAY  
through  
FRIDAY  
NIGHT  
AM  
EVE  
NIGHT  
MORN  
DAY  
Open the drop down door on the front of the thermostat. Rotate  
SATURDAY  
and  
SUNDAY  
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.  
EVE  
NIGHT  
TECHNICAL SERVICE  
UP  
To change  
current day.  
To set current time. The  
time (e.g."12:00 AM")  
will be flashing.  
UP  
NEXT  
To change the  
current time.  
If you have problems installing this thermostat, please reread the  
instructions carefully. Be sure the batteries are good, and installed  
correctly. Press the RESET button if erratic operation is encountered.  
If you still have problems, call Technical Service at 1-856-234-8803  
between 8:00 a.m. and 4:30 p.m. Eastern Standard Time, Monday  
through Friday or visit our online technical support at  
DOWN  
TEMPERATURE OVERRIDE AND TEMPERATURE HOLD  
These features let you change the current Set Temperature without  
changing the programs stored in your thermostat’s memory.  
Temporary Temperature Override  
WARRANTY  
• Press UP/DOWN to change the current  
temperature setting. The OVERRIDE indicator  
Limited Warranty: If this unit fails because of defects in materials  
or workmanship within one year of 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 one year from 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 participating  
retailer from which purchase was made, along with proof of purchase.  
Please refer to Technical Service Section 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. only.  
UP  
M
O
appears on display.  
MORN  
DAY  
H
E
A
T
EVE  
• The Override feature will be automatically  
canceled at the start of the next program period.  
PM  
NIGHT  
DOWN  
E
OVERRID  
To cancel OVERRIDE prior to next program  
period press UP/DOWN until original set  
temperature appears. OVERRIDE indicator will  
d
i
s
a
p
p
e
a
r
from display.  
VACATION Temperature HOLD  
• Press HOLD. Adjust temperature as  
desired with UP/DOWN.  
HOLD  
M
O
MORN  
DAY  
H
E
A
T
Temperature setting will not change even  
EVE  
PM  
NIGHT  
after next program period begins.  
HOLD  
To clear, press HOLD again.  
ADVANCED FEATURES  
TEMPERATURE SWING  
A thermostat works by turning your heating on and off whenever  
the room temperature varies a certain number of degrees from the  
set-point temperature. This variation is the “swing.”  
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.  
HOLD  
NEXT  
Press together  
SWING SETTINGS  
To change  
swing  
Dial must be in  
the run position  
DOWN  
UP  
MORN  
DAY  
EVE  
NEXT  
Press to set.  
NIGHT  
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  
afterward.  
• Located at the center of the circuit board of your thermostat are two  
dip switches.  
• To change to Celsius, move the top dip switch to the right.  
• To change to a 24HR clock, move the bottom dip switch to the right.  
• Press the reset key on the front of the thermostat for the changes to  
take effect.  
• Reprogram as necessary.  
© COPYRIGHT 2004 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED  
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