Complete, Easy To Read
TEMP UP MODE
FAN
MODE
TEMP DOWN
BACKLIGHT
RESET
INSTALLATION AND
OPERATING INSTRUCTIONS
PSD111 SERIES
DIGITAL ELECTRONIC THERMOSTAT
Easy as
Set TemperatureChoose Heat or CoolInstalls Easily
LUX PRODUCTS CORPORATION • Mt. Laurel, New Jersey 08054, USA
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.
IMPORTANT!
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.
COMPATIBILITY
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
systems.
FEATURES
●
Slim design may be vertically or
horizontally mounted
●
Large easy to read backlit display
●
Fan switch for system or continuous
fan operation
●
Simple temperature Up or Down keys
will display and adjust the Set
Temperature.
●
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
compressor protection
Patent # 6,951,306
1–2–3
52000
OPERATING INSTRUCTIONS
●
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.
●
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.
NOTE
The FAN switch works only if your system provides a wire for the
thermostat’s “G” terminal.
INSTALLATION
Please read all instructions carefully before beginning installation.
OFF
Tur n 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.
TOOLS REQUIRED
●
#1 Phillips screwdriver (small)
●
Drill with 3/16-in. (4.8mm) bit
●
Wire stripper/cutter
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.
●
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
window.
●
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
completed.
CAUTION
© COPYRIGHT 2006 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED
Read instructions carefully before removing any wiring from existing
W
RH
B
O
RC
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G
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W
RH
B
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G
C
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W
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B
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W
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B
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W
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B
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GAS
VALVE
TYPICAL 2 WIRE HEAT HOOKUP
24 VAC AND MILLIVOLT SYSTEMS
AC
LINE
24
VAC
XFMR
OPTIONAL
COMMON
GAS
VALVE
TYPICAL 3 WIRE HEAT HOOKUP
WHERE THIRD WIRE IS FAN WIRE
AC
LINE
24
VAC
XFMR
FAN
OPTIONAL
COMMON
GAS
VALVE
TYPICAL 4 WIRE HOOKUP
HEATING AND COOLING
AC
LINE
24
VAC
XFMR
FAN
COOL
COMPRESSOR
OPTIONAL
COMMON
GAS
VALVE
TYPICAL 5 WIRE HOOKUP
HEATING AND COOLING
AC
LINE
24
VAC
24
VAC
XFMR
AC
LINE
XFMR
FAN
COOL
COMPRESSOR
OPTIONAL
COMMON
TYPICAL SINGLE STAGE HEAT PUMP
HEATING AND COOLING
24
VAC
AC
LINE
XFMR
CHANGEOVER
VALVE
FAN
HEAT
COMPRESSOR
OPTIONAL
COMMON
NOTE: ADD JUMPER BETWEEN "W" AND "Y"
BBOOB
O
OR
USE "B" OR "O"
BUT NOT BOTH
ALL COMMON WIRES ARE OPTIONAL
AND MAY BE TAPED OFF
W
RH
B
O
RC
Y
G
C
OPTIONAL OPTIONAL
OPTIONAL OPTIONAL
OPTIONAL OPTIONAL
TC BC
FG
RCRH V 5R
HW 4
J
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P
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ALL COMMON WIRES ARE OPTIONAL
AND MAY BE TAPED OFF
**IF A "B" WIRE IN YOUR SYSTEM IS A
SYSTEM COMMON, THEN CONNECTING IT
AT THE "B" TERMINAL MAY CAUSE
DAMAGE TO YOUR SYSTEM
*IF Y AND "C" ARE BOTH PRESENT,
"C" IS THE COMMON WIRE
W
RH
B
O
RC
Y
G
C
DO NOT CONNECT
A "B" WIRE HERE
UNLESS YOU ARE SURE
THAT IT IS CORRECT
B TCC
FG
C* 6Y
RCRH V 5R
B**
HW 4
O
J
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P
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V
I
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D
J
U
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P
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R
R
E
M
O
V
E
D
ALL COMMON WIRES ARE OPTIONAL
AND MAY BE TAPED OFF
**IF A "B" WIRE IN YOUR SYSTEM IS A
SYSTEM COMMON, THEN CONNECTING IT
AT THE "B" TERMINAL MAY CAUSE
DAMAGE TO YOUR SYSTEM
*IF Y AND "C" ARE BOTH PRESENT,
"C" IS THE COMMON WIRE
*IF Y AND "C" ARE BOTH PRESENT,
"C" IS THE COMMON WIRE
B**
W
RH
B
O
RC
Y
G
C
B TCC
FG
RRC
C* 6Y
RH V 5
HW 4
O
ALL COMMON WIRES ARE OPTIONAL
AND MAY BE TAPED OFF
W
RH
B
O
RC
Y
G
C
B TCC
FG
C*Y 6
RCR V
J
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HEATING SYSTEMS COOLING SYSTEMS
4- or 5-WIRE WITH ONE TRANSFORMER 5- or 6-WIRE WITH TWO TRANSFORMERS
HEATING / COOLING SYSTEMS HEATING / COOLING SYSTEMS
DO NOT CONNECT
A "B" WIRE HERE
UNLESS YOU ARE SURE
THAT IT IS CORRECT
thermostat. Wires must be labeled before they are removed. When removing
wires from their terminals, ignore the color of the wires since they may not
comply with any standard.
REMOVING THE OLD THERMOSTAT
Y
W
1. Switch electricity to the furnace and air conditioner
OFF; then proceed with the following steps.
2. Remove cover from old thermostat. Most are snap-on
types and simply pull off. Some have locking screws on
the side. These must be loosened.
3. Note the letters printed near the terminals. Attach labels (enclosed) to
each wire for identification. Label and remove wires one at a time. Make
sure the wires do not fall back inside the wall.
4. Loosen all screws on the old thermostat and remove it from the wall.
MOUNTING THE PSD111 ON THE WALL
1. Decide whether the thermostat will be mounted vertically or horizontally.
CAUTION
Be careful not to drop the unit or disturb any electronic parts.
CAUTION
WIRING DIAGRAMS
These diagrams are provided for new installations or un-referenced
wires.
Y
W
Y
W
2. Strip insulation 3/8 in. (9.5mm) from
wire ends and clean off any corrosion.
R
3. Fill wall opening with non-combustible
insulation to prevent drafts from affecting
the thermostat.
4. Cup the thermostat with one hand behind the thermostats display.
Separate the unit from it’s base
plate using the tabs protruding
from it’s body with the other hand.
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
ATTACHING WIRES
provided. Then mount the base as described below.
5. Route the wires through the large hole in the base
plate by the terminal block. Hold the base against the
wall, with the wires coming through. Position the base
for best appearance (to hide any marks from an old
thermostat). The terminal block should be either to the
right of or below the routing hole. Attach the base to the
wall with the two screws provided.
NOTE
BASE
TAB
GC Y RC O B RH W
TERMINALS