Complete, Easy To Read
DIGITAL ELECTRONIC THERMOSTAT
Choose Heat or Cool
LUX PRODUCTS CORPORATION • Mt. Laurel, New Jersey 08054, USA
WARNING: Use Energizer
is a registered trademark of Eveready Battery Company, Inc.
is a registered trademark of The Gillette Company, Inc.
I M P O R T A N T !
Please read all instructions carefully before beginning instal-
lation and save for future reference. Before removing any
wiring from your existing thermostat, its wires must be labeled
with their terminal designations. Ignore the color of the wires
since they may not comply with any standard.
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. 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 installation. Please save for future reference.
The unit can be used with
most 24 volt gas, oil or electric
heating and air conditioning
systems, gas millivolt heating
systems, and single stage heat
pumps. It cannot be used with
120 volt heating systems or two
stage heat pumps. Ask your
dealer for other LUXPRO
thermostats to control those
Slim design may be vertically or
Large easy to read backlit display
Fan switch for system or continuous
Simple temperature Up or Down keys
will display and adjust the Set
Temperature displays in F° or C°
Temperature differential SWING settings
of 0.25 and 0.5
Selectable 2 or 5-Minute Minimum
Run/Off time provides short cycle and
Alkaline Batteries Only.
Patent # 6,951,306
© COPYRIGHT 2006 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED
In the winter, set the system switch to HEAT to control your heating
In the summer, set the switch to COOL to control your air conditioner.
Press either the TEMPERATURE UP or DOWN key in order to show
the current SET TEMPERATURE.
Press TEMPERATURE UP or DOWN keys again until your desired
temperature is displayed. The display will show the current room
temperature again after two seconds.
Press the light bulb button to illuminate the display. Adjusting the
temperature will keep the display lit until no button has been pressed
for over ten seconds.
In spring and fall or when windows are open, you can set the system
switch to 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.
The FAN switch works only if your system provides a wire for the
Please read all instructions carefully before beginning installation.
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 1.5 amps; higher
current may cause damage to the thermostat. If you are in doubt, call
your HVAC contractor.
Your thermostat is a precision instrument. Please handle it with care.
#1 Phillips screwdriver (small)
Drill with 3/16-in. (4.8mm) bit
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.
Remember that your PSD111 may be mounted vertically or horizontally
when determining the optimal location.
Locate the thermostat on an inside wall, about 5 ft. (1.5m) above the
floor, and in a room that is used often.
Do not install it where there are unusual heating conditions, such as: in
direct sunlight; near a lamp, radio, television, radiator, register, or
fireplace; near hot water pipes in a wall; near a stove on the other side
of a wall.
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
Do not locate in a damp area. This can lead to corrosion that will
shorten thermostat life.
Do not locate where air circulation is poor, such as: in a corner or an
alcove; or behind an open door.
Do not install the unit until all construction work and painting has been
N O T E
thermostat's "G" terminal.
C A U T I O N