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REMOVING THE OLD THERMOSTAT:  
FRONT PANEL ITEMS  
Complete, Easy To Read  
INSTALLATION AND OPERATING INSTRUCTIONS  
1. Switch OFF the electricity to the furnace or heating equipment; then  
proceed with the following:  
SYSTEM MODE SWITCH:  
2. Remove cover from old thermostat. Most are snap-on types and  
simply pull off, some have screws on the sides, and these must be  
loosened first.  
The MODE switch has two positions: HEAT and OFF. In the winter, set  
the mode switch to HEAT to control your heating system. In the  
spring and fall, or when the windows are open, you can set the switch  
OFF.  
3. Take note of the letters printed near the wire terminals. Attach  
labels (enclosed) to each wire for identification by terminal letter,  
not color.  
PSD010Bc  
PUSH BUTTONS:  
4. Make sure the wires do not fall back inside the wall. Remove and  
label one wire at a time, and do not allow the wires to touch each  
other or any parts of the thermostat.  
There are two push buttons to the right of the unit's display screen.  
These are used to adjust the set point temperature.  
BATTERY POWERED, NON-PROGRAMMABLE  
DIGITAL HEATING ONLY THERMOSTAT  
5. Loosen all screws on the old thermostat and/or base, and remove it  
from the wall.  
52129  
LUX PRODUCTS CORPORATION  
Mt. Laurel, New Jersey 08054, USA  
OPERATING INSTRUCTIONS  
TEMPERATURE ADJUSTMENT:  
While in HEAT mode, a single press on either the UP or DOWN button  
causes the word “SET” to appear on the screen. Once “SET” is  
present, the set temperature value starts flashing and the set point  
temperature can be altered by pressing either the UP or DOWN button  
once per degree of change, or by holding either button for at least two  
seconds to automatically increment the set point quickly in the  
associated direction.  
C A U T I O N :  
Be careful not to drop the body or disturb  
any of the electronic parts.  
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.  
MOUNTING THE NEW THERMOSTAT:  
1. Strip insulation leaving 3/8 in. (9.5mm) of bare wire on the ends  
and clean off any corrosion present.  
2. Fill the wall opening with non-combustible insulation to prevent  
drafts from affecting the thermostat while in use.  
3. Pull your new thermostat apart by applying pressure to the thumb  
tab on the bottom edge of the unit. While pressure is being applied  
to this release latch, pull the two halves of the thermostat apart  
near the bottom edge.  
I M P O R T A N T !  
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.  
Based upon the relationship of the set temperature to the displayed  
ambient room temperature, the thermostat will engage the W1  
terminal in heat mode, if a temperature demand is present.  
DISPLAY ILLUMINATION:  
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.  
Pressing either set temperature button will illuminate the display for  
easier viewing in dim light conditions. The light will remain on for  
approximately 12 seconds. While the light is illuminated, pressing any  
of the three push buttons will continue the lighting and remain on for  
approximately 12 more seconds.  
Thank you for your confidence in our product. 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 instal-  
lation. Please save these instructions for future reference.  
MINIMUM RUN/OFF TIME:  
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.  
This is determined by the thermostat, and controls the minimum  
length of time that the thermostat must remain with Heat either On or  
Off, before it will automatically switch to the alternate On or Off state.  
This feature prevents rapid or short cycling of the heating equipment.  
The time amount for this delay is fixed at 5 minutes between on or off  
load changes.  
COMPATIBILITY  
• The single-stage PSD010Bc thermostat can be used with most 2-wire  
24-volt heating systems that do not have a blower fan.  
CONNECTING THE WIRES:  
5. Clean bare wire ends must be inserted between the  
black clamp plate and the brass terminal as shown  
here.  
6. Securely tighten all electrical terminal screws  
(even unused ones).  
ADJUSTABLE TEMPERATURE STOP:  
• The PSD010Bc thermostat can also be used with Millivolt systems.  
This model has an Adjustable Temperature Stop. This is a set  
temperature limit, and is user adjustable in one-degree increments.  
The temperature stop prevents the set temperature from being  
adjusted to a value that is higher than the temperature stop setting.  
FEATURES  
WIRING INFORMATION  
** Complete heating system wiring can be found in the WIRE  
IDENTIFICATION AND WIRING SCHEMATICS section of this  
instruction sheet. The schematics show system components for  
brand new installations or for un-referenced wires.  
Quick & Easy  
Temperature  
Change  
˚
Buttons  
72  
SETUP OPTIONS  
Not  
Used  
Large Easy to  
Read Backlit  
Display  
If batteries are presently installed, remove them from the thermostat  
before proceeding with changing any of the options listed below.  
A table similar to this one shown below is printed on the thermostat's  
circuit board. There may be minor differences present in some of the  
wording of your specific model, but the function of each option will be  
the same.  
BATTERIES AND MAINTENANCE  
The batteries in the thermostat should be replaced AT LEAST once per  
year, or sooner if the “LO BAT” battery symbol appears in the lower  
right portion of the display screen.  
Mode  
Slide  
Switch  
HEAT  
OFF  
UP  
DOWN  
LUXPRO  
To replace the batteries in the thermostat, remove the thermostat’s  
body from the wiring base plate attached to the wall by pressing the  
thumb latch at the bottom center of the unit and swinging the front  
body out towards you, up and away from the base. Remove the used  
batteries from the battery tray and discard appropriately.  
• Digital, Non-Programmable  
• Battery Powered Only  
• Set Temperature Range 40°F to  
90°F  
• Clean, Attractive Design  
• Large, Easy To Read Display  
with LED Backlight  
• F / C Selectable Temperature  
Display  
• 5 Minute Minimum  
Run / Off Time For  
Equipment Protection  
• Adjustable Temperature Stop  
JP1 (SYS)  
JP2 (SCALE)  
JP3 (FAN)  
FURN  
HP  
C
GAS  
O
F
ELECT  
B
®
or DURACELL®, “AA” size Alkaline batteries  
Install two new Energizer  
into the battery tray. Observe the polarity markings shown in the  
battery compartment to ensure proper installation. When finished,  
hang the top of the unit by the tabs at the top corners of the base, and  
then snap the bottom of the unit into place. Do not use unnecessary  
force. If the body does not snap into place easily, remove the body, re-  
hang it from the tabs at the top and try again.  
JP4 (B / O)  
JUMPER SETTINGS:  
• Easy To Install  
There are four (4) 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 the adjacent pair of  
metal pins. A change to ANY of the option jumper settings will not be  
recognized unless the thermostat has been without battery power for  
at least 2 minutes, and then power is restored again. Each of these  
jumpers changes a different setup option. The choices for these  
options are listed in a table printed on the circuit board, and are also  
printed adjacent to each individual setting jumper.  
INSTALLATION  
PLEASE READ ALL INSTRUCTIONS CAREFULLY BEFORE  
BEGINNING INSTALLATION.  
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  
the most common technical questions, and also permits you to email  
your questions to our technical support staff at your convenience.  
C A U T I O N :  
This thermostat is protected against normal static  
electric discharges. However, in extremely dry weather  
you should touch a grounded metal object before  
touching the thermostat to minimize the risk of causing  
damage to the unit.  
JP1 - FURNACE / HEAT PUMP SYSTEM TYPE:  
This setting is not used on this PSD010Bc model.  
F
JP2 - FAHRENHEIT OR CELSIUS DISPLAY FORMAT:  
This setting controls whether the temperature is  
shown in degrees °F or °C on the LCD display screen.  
JP2  
TOOLS REQUIRED:  
• #1 Phillips screwdriver (small - medium)  
• Drill with 3/16-in. (4.8mm) drill bit  
• Wire stripper/cutter  
JP3 - GAS / ELECTRIC FAN OPERATION:  
This setting is not used on this PSD010Bc model.  
WARRANTY  
C
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.  
JP4 - [B] OR [O] TERMINAL USAGE OPTION:  
This setting is not used on this PSD010Bc model.  
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.  
Once an optional jumper setting has been performed as described  
above, please ensure that the thermostat has been without battery  
power for at least 2 minutes. Now install new batteries into the  
thermostat. When installing batteries, use two new Energizer® or  
DURACELL® “AA” size alkaline batteries only. Ensure that the batteries  
are installed in the proper direction as per the markings shown in the  
battery tray.  
Your thermostat is a precision instrument.  
Please handle it with care.  
Do not short (jumper) across the electric terminals for the  
furnace to test the system. This may damage the thermostat and  
void your warranty.  
All wiring must conform to all applicable local codes and  
ordinances.  
This thermostat should be limited to a maximum of 1.5 amps;  
higher current may cause damage to the thermostat.  
COMPLETING THE INSTALLATION  
Install your new thermostat onto its base. To do this, start with the  
bottom tilted out towards you at first, and line up the two holes in the  
top of the thermostat with the two hooks on the top of the back plate.  
Slowly pivot the bottom of the thermostat towards the back plate and  
push firmly on the bottom half of the thermostat until it is securely  
latched to the back plate. If the two thermostat halves do not latch  
easily, remove and try again. Do not attempt to force them together.  
THERMOSTAT LOCATION:  
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.  
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.  
NOTE: Before use, remove the plastic film (if present) that is  
protecting the LCD display screen.  
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.  
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.  
Turn the electrical power back ON to your heating system. Verify that  
the system is operating properly. When set to a high temperature, the  
heating system should provide warm air after a short time in Heat  
Mode. Usually, sound from the furnace or heating system can be  
heard while it is running. Your installation is now complete.  
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.  
6. Do not install the unit until all construction work and painting has  
been completed.  
©
2012 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED  
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52129  
(PSD010Bc) ENGLISH - WIRE IDENTIFICATION AND WIRING SCHEMATICS  
TYPICAL 24 VOLT  
HEATING ONLY SYSTEMS  
HEATING ONLY SYSTEMS  
RH  
W1  
G
System Common  
W1  
RH  
W
R
H
V
4
5
W1  
W2  
Y2  
+
-
SYSTEM  
XFMR  
HEATER  
Y1  
RH  
RC  
WIRING DIAGRAM NOTES:  
1. The BOLD lines are what you should be connecting to the terminals on this new thermostat.  
2. In many cases, the thin lines shown as “SYSTEM COMMON” will not be visible at the thermostat  
location, they are located with your heating equipment.  
B/O  
(PSD010Bc) FRANÇAIS – IDENTIFICATION DES FILS ET SCHÉMAS DE CÂBLAGE  
SYSTÈMES DE CHAUFFAGE  
TYPIQUE DE 24 VOLTS SEULEMENT  
SYSTÈMES DE  
CHAUFFAGE SEULEMENT  
RH  
W1  
G
Système commun  
W1  
RH  
W
R
H
V
4
5
W1  
W2  
Y2  
Y1  
+
-
SYSTÈME  
XFMR  
RADIATEUR  
RH  
RC  
NOTES DU DIAGRAMME DE CÂBLAGE :  
1. Les lignes en CARACTÈRE GRAS sont celles que vous devriez raccorder aux bornes de ce nouveau  
thermostat.  
B/O  
2. Souvent, les lignes minces indiquées comme « SYSTÈME COMMUN » ne seront pas visibles à  
l'emplacement du thermostat. Elles sont avec votre équipement de chauffage.  
(PSD010Bc) ESPAÑOL – IDENTIFICACION DE CABLES Y DIAGRAMAS DE CABLEADO  
SISTEMAS TÍPICOS EXCLUSIVOS  
SISTEMAS EXCLUSIVOS  
DE CALEFACCIÓN  
DE CALEFACCIÓN DE 24 VOLTIOS  
RH  
W1  
G
Sistema Común  
W1  
RH  
W
R
H
V
4
5
W1  
W2  
Y2  
+
-
SISTEMA  
XFMR  
CALENTADOR  
Y1  
RH  
RC  
NOTAS DEL DIAGRAMA DEL CABLEADO:  
1. Las líneas GRUESAS son las que debe conectar a las terminales del nuevo termostato.  
2. En muchos casos, las líneas delgadas que se muestran como “SYSTEM COMMON” (COMUNES AL  
SISTEMA) no serán visibles en la ubicación del termostato, se encuentran con el equipo de  
calefacción.  
B/O