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PSPHA732  
INSTALLATION AND OPERATING INSTRUCTIONS  
®
SMART TEMP ELECTRONIC THERMOSTAT  
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Easy as  
–2–3  
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COOL  
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Installs Easily  
Set Day & Time  
Choose Heat or Cool  
IMPORTANT!  
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 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.  
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•
•
Please read all instructions carefully before beginning  
installation. Save them 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  
These instructions may contain information beyond that required  
for your particular installation. Please save for future reference.  
with any standard.  
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COMPATIBILITY . . . . . . . . . . . . . . . . . . . . . . . .  
FEATURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
ELECTRICAL RATINGS . . . . . . . . . . . . . . . . . . . .  
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . .  
TOOLS REQUIRED . . . . . . . . . . . . . . . . . . . . .  
LOCATION. . . . . . . . . . . . . . . . . . . . . . . . . . . .  
REMOVAL OF OLD UNIT. . . . . . . . . . . . . . . . .  
MOUNTING . . . . . . . . . . . . . . . . . . . . . . . . . . .  
WIRING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
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6.3.  
CLEAN CYCLE  
(IAQ FAN PROGRAMMING) . . . . . . . . . . . . . .  
COPY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
ADVANCED FEATURES . . . . . . . . . . . . . . . . .  
KEYBOARD LOCK . . . . . . . . . . . . . . . . . . . . . .  
FILTER MONITOR . . . . . . . . . . . . . . . . . . . . . .  
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6.4.  
7.  
.1.  
.2.  
.3.  
.4.  
.5.  
7.1.  
7.2  
7.2.1. FILTER USAGE . . . . . . . . . . . . . . . . . . . . . . . .  
7.2.2. FILTER LIMIT . . . . . . . . . . . . . . . . . . . . . . . . .  
7.3.  
7.4.  
7.5.  
ENERGY USAGE . . . . . . . . . . . . . . . . . . . . . . . 10  
CALIBRATION OFFSET . . . . . . . . . . . . . . . . . . 10  
RESET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
.5.1. TERMINAL DESCRIPTIONS . . . . . . . . . . . . . .  
.5.2. CONNECTING THE WIRES . . . . . . . . . . . . . . .  
.5.3. COMPLETING YOUR INSTALLATION . . . . . . .  
7.5.1. HARDWARE RESET . . . . . . . . . . . . . . . . . . . . 10  
7.5.2. SOFTWARE RESET . . . . . . . . . . . . . . . . . . . . . 10  
.
OPERATING BASICS . . . . . . . . . . . . . . . . . . .  
UP/DOWN CHANGE KEYS. . . . . . . . . . . . . . . .  
SET DAY AND TIME . . . . . . . . . . . . . . . . . . . .  
TEMPERATURE CONTROL MODES. . . . . . . . .  
EMERGENCY (EMER) . . . . . . . . . . . . . . . . . . .  
AUTOCHANGE (AUTO) . . . . . . . . . . . . . . . . . .  
HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
COOL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
DEFAULT PROGRAM . . . . . . . . . . . . . . . . . . .  
HOLD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
OVERRIDE. . . . . . . . . . . . . . . . . . . . . . . . . . . .  
FAN MODES . . . . . . . . . . . . . . . . . . . . . . . . . .  
.1.  
.2.  
.3.  
.4.  
.5.  
.6.  
.7.  
.8.  
.9.  
.10.  
.11.  
.12.  
7.6.  
TEMPERATURE VARIATION / SWING . . . . . . . 10  
7.6.1. SWING 1 – 1st STAGE . . . . . . . . . . . . . . . . . . 11  
7.6.2. SWING 2 – 2nd STAGE. . . . . . . . . . . . . . . . . . 11  
7.7.  
8.  
DEAD BAND . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
SET UP OPTIONS. . . . . . . . . . . . . . . . . . . . . . 11  
MINIMUM RUN TIME – J3 . . . . . . . . . . . . . . . 12  
CLOCK FORMAT – J4 . . . . . . . . . . . . . . . . . . . 12  
TEMPERATURE DISPLAY FORMAT  
8.1.  
8.2.  
8.3.  
(F/C DISPLAY) – J5. . . . . . . . . . . . . . . . . . . . . 12  
SMART RECOVERY – J6. . . . . . . . . . . . . . . . . 12  
FAN OVERRUN TIME – J7. . . . . . . . . . . . . . . . 12  
REPOSITIONING JUMPERS . . . . . . . . . . . . . . 12  
BATTERIES/MAINTENANCE . . . . . . . . . . . . . 12  
BATTERY INSTALLATION . . . . . . . . . . . . . . . . 13  
TECHNICAL ASSISTANCE . . . . . . . . . . . . . . . 13  
WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . 13  
WIRING DIAGRAMS. . . . . . . . . . . . . . . . . . . . 14  
CROSS REFERENCE CHART . . . . . . . . . . . . . 15  
USER PROGRAM TABLE . . . . . . . . . . . . . . . . 16  
JUMPER TABLE. . . . . . . . . . . . . . . . . . . . . . . 16  
8.4.  
8.5.  
8.6.  
9.  
.12.1. AUTO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
.12.2. ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
9.1.  
10.  
11.  
12.  
13.  
14.  
15.  
®
.12.3. CLEAN CYCLE . . . . . . . . . . . . . . . . . . . . . . . .  
.13.  
.14.  
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DISPLAY ILLUMINATION . . . . . . . . . . . . . . . .  
AUDIBLE BEEP . . . . . . . . . . . . . . . . . . . . . . . .  
PROGRAMMING . . . . . . . . . . . . . . . . . . . . . .  
DEFAULT TEMPERATURE PROGRAM. . . . . . .  
EDITING HEAT OR COOL PROGRAMS . . . . . .  
.1.  
.2.  
.2.1. WEEKDAY PROGRAMMING . . . . . . . . . . . . . .  
.2.2. WEEKEND PROGRAMMING . . . . . . . . . . . . . .  
®
®
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.  
Mt. Laurel, New Jersey 08054, USA  
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www.luxproproducts.com  
52091  
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TU  
UP  
LARGE  
BACKLIT  
DISPLAY  
DOWN  
5:36 72  
LIGHT  
IAQ  
INDEPENDENTLY  
PROGRAMMABLE  
FAN  
EASY  
PROGRAMMING  
WITH  
®
LUX SPEED DIAL  
PSPHA732  
MODE SWITCH  
TU  
5
:36 72  
PSPHA732  
1
. COMPATIBILITY  
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Programmable Filter Monitor and Indicator  
Energy Usage Monitor  
Battery Free Nonvolatile Memory For All  
Programs And Settings  
Battery or System Powered with Battery  
Backup  
Batteries Included (2 AA)  
Your PSPHA732 is compatible with Heat Pumps  
Up to 3 Stages of Heat and 2 Stages of Cooling.  
This includes Auxiliary and Emergency Heat. It  
cannot be used with 120 volt heating systems or  
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wire zone valves. Ask your dealer for other  
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LUXPRO thermostats to control those systems.  
Auto-Changeover  
Programmable Auto-Changeover Dead band  
2. FEATURES  
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Heating and Cooling  
Electronic  
Programmable  
7 Day Programming (Each day can be  
different)  
Auxiliary and Emergency Heat Indicators  
Programming Copy Button  
Large Display  
(1˚ to 6˚ F) (1˚ to 3˚ C)  
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Keyboard Lockout  
Temperature Offset (User Calibration)  
On Screen Low Battery Indicator  
F/C Temperature Display  
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12/24 Hour Clock  
2 or 5 Minute Short Cycle Protection  
1 Minute Optional Residual Fan  
Multi-Stage Adjustable Temperature Differential  
Electro-luminescent Display Backlight  
®
Clean Cycle (Patent No. 6,988,671) IAQ  
/
Cycle Rate  
Independently Programmable Fan  
4 Periods Per Day  
Temporary Override 1-4hr (CAT24 Residential  
Compliant)  
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Terminals: E, C, Y1, R, Y2, W, B, O, G  
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3
. ELECTRICAL RATINGS  
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30V maximum (24VAC nominal)  
1.5A maximum per terminal  
2.0A terminal sum  
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Hold  
Optional Smart Recovery  
Easy Programming with LUX Speed Dial  
®
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C A U T I O N:  
W A R N I N G:  
Your thermostat is protected against normal  
static electric discharges. To minimize the  
risk of damaging the unit in extremely dry  
weather, touch a grounded metal object before  
touching your thermostat.  
• Read instructions carefully before removing  
any wiring from an existing thermostat.  
• Label wires before they are removed.  
•
When removing wires from their terminals,  
ignore the color of the wires since they may  
not comply with any standard.  
4. INSTALLATION  
4.3 REMOVAL OF OLD UNIT  
1
. Switch electricity to the furnace and air  
4
.1 TOOLS REQUIRED  
conditioner OFF; then proceed with the following  
steps.  
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#1 Phillips screwdriver (small)  
Drill with 3/16-in. (4.8mm) bit  
Wire stripper/cutter  
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.  
4.2 LOCATION  
•
On replacement installations, mount the new  
3. Note the letters printed near the terminals.  
Attach labels (enclosed) to each wire to  
identification. Label and remove wires one at a  
time. Make sure the wires do not fall back inside  
the wall.  
Locate the thermostat on an inside wall, about 5 4. Loosen all screws on the old thermostat and  
thermostat in place of the old one, unless the  
conditions listed below suggest otherwise. On  
new installations, follow the guidelines listed  
below.  
•
ft. (1.5m) above the floor, in a room that is used  
often.  
remove it from the wall.  
•
Do not locate where air circulation is poor, such  
4
.4 MOUNTING  
as in a corner or an alcove; or behind an open  
door.  
•
conditions, such as: in direct sunlight; near a  
lamp, television, radiator, register, or fireplace;  
near hot water pipes in a wall; near a stove on  
the other side of the wall.  
5. Strip insulation 3/8 in. (9.5mm) from wire  
ends and clean off any corrosion.  
. Fill wall opening with non-combustible  
Do not install it where there are unusual heating  
6
insulation to prevent drafts from affecting the  
thermostat.  
7. With each thumb on a release tab at the  
bottom of the body, and fingers over the top of  
the unit, release the unit from its base plate by  
squeezing the tabs into the body.  
•
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.  
8. Separate the unit from its base plate by pulling  
•
Do not locate in a damp area. This can lead to  
corrosion that will shorten thermostat life.  
Do not install the unit until all construction work  
and painting has been completed.  
the body outward at its bottom.  
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C A U T I O N:  
Be careful not to drop the unit or disturb  
Y2: Active while calling for a 2nd stage of  
heating/cooling.  
R: Transformer, Provides Power  
Y1: Active while calling for a 1st Stage of  
heating/cooling.  
•
electronic parts.  
•
Leave the door closed while the body is  
being removed from the base.  
C: Use of this terminal allows the unit to be  
system powered rather than battery powered.  
E: This terminal is active when the thermostat is  
calling for Emergency Heat.  
9
. Route the wires through the open areas in the  
base plate above the terminals. Hold the base  
against the wall, with the wires coming through.  
Position the base for the best appearance (to  
hide any marks from an old thermostat). Attach  
the base to the wall with the two screws  
provided.  
4.5.2 CONNECTING THE WIRES  
10. Loosen wire clamp screws  
just enough to slide wire under  
the black top part of the clamp.  
N O T E: 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.  
11. Connect stripped wire ends,  
by trapping it between its black clamp and brass  
terminal. Then tighten its terminal screw.  
12. Tape the ends of any unused wires.  
4
.5.3 COMPLETING YOUR INSTALLATION  
®
®
13. Install two new Energizer or DURACELL  
4.5 WIRING  
"
AA" size alkaline batteries at this time. For  
instructions, refer to BATTERIES/MAINTENANCE.  
4. Configure your thermostat at this time. Refer  
to SETUP OPTIONS.  
5. Install your thermostat on its base. To do  
•
Using the terminal descriptions below, wiring  
diagram on page 14, and your labels, determine  
the appropriate wiring for your system.  
1
•
Also Refer to the Heat Pump Cross-reference  
Chart on page 15.  
If you are unsure or need assistance, call the  
1
this, hang the top of the unit by the tabs on the  
base, 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 tabs and try again.  
•
LUX Technical Assistance Dept. (see TECHNICAL  
ASSISTANCE.)  
4.5.1 TERMINAL DESCRIPTIONS  
16. Turn the power back on to your heating  
and/or air conditioning system.  
•
See drawing on page 16 showing layout of  
terminals.  
17. Verify that the system and its fan are  
operating properly. When set to a high  
temperature, the heating system should provide  
G: The fan terminal is live at any time the  
thermostat attempts to turn the system fan or warm air after a short time. Likewise, a cooling  
blower on.  
system should provide cool air after a short time.  
Usually sound from the furnace and air  
conditioning units can be heard while they are  
running. The rush of moving air should be heard  
within a short time after either has been started.  
O: Live at any time the unit is in Cool mode.  
B: Live at any time unit is in Heat Mode.  
W: Active while the thermostat is calling for  
auxiliary 3rd stage of heat.  
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NOTE: If you have an electric system and the  
blower does not operate after installation,  
verify that the electric/gas option in installer  
set up is set to Electric, see SETUP OPTIONS.  
5.4 EMERGENCY (EMER)  
Use EMERGENCY position on slide switch to  
active your emergency heating. You will see  
EMER HEAT" appear in the display. Press  
•
"
temperature UP or DOWN keys until your  
desired temperature is displayed in the HEAT SET  
area of the display. "EMER HEAT" will flash if it  
is activated and running.  
1
8. Your installation is now complete.  
5
. OPERATING BASICS  
•
Putting your thermostat in this mode will  
5
.1 UP/DOWN CHANGE KEYS  
disable the other 2 stages of heating. (Your heat  
pump will be disabled).  
•
These are the two upper keys, just right of the  
•
The 3rd stage of heat will deenergize as soon as  
the temperature setpoint is reached. The letters  
EMER" will disappear.  
units display. They are used to adjust set  
temperatures, and make other setting changes.  
"
•
Pressing these keys once will adjust a setting  
one step in the associated direction.  
If there are many choices for a value, usually  
5.5 AUTOCHANGE (AUTO)  
Use AUTOCHANGE mode to allow your  
•
•
that setting will advance while holding one of  
these keys. Some settings though, must be  
changed one press at a time.  
thermostat to switch between HEAT and COOL  
modes automatically. Slide the mode switch to  
AUTO and AUTO CHANGE will be displayed  
above the set temperature. You can determine  
whether your thermostat is in HEAT or COOL  
mode by whether HEAT or COOL is visible in the  
set temperature area of the units display. Initially  
HEAT or COOL may not be active until a  
determination is made that HEAT or COOL is  
necessary.  
5.2 SET DAY AND TIME  
To set the correct time after the unit has lost  
power or after reset:  
•
•
Open the door on the front of the thermostat.  
Rotate the dial to SET DAY/TIME. The  
abbreviation for the day of week will flash.  
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•
•
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Use the UP key to advance to the current day.  
Press NEXT to adjust the time. Time will flash.  
Use the UP/DOWN keys to set the time.  
• The programmed temperature for a given mode  
will be used as the set temperature for that  
mode.  
• Pressing the UP/DOWN keys at the same time  
will force the unit to change modes and make the  
programmed set temperature the new set  
temperature.  
Pressing NEXT again will toggle from Set Time  
to Set Day, or vice versa.  
•
Return the dial to its RUN position.  
5
.3 TEMPERATURE CONTROL MODES  
5
.6 HEAT  
When a unit has first been powered up with the  
dial in the RUN position, your thermostat will  
begin to control your heating and/or air  
conditioning system according to it’s default  
program. There is a 5-position slide switch to  
change temperature control modes. Slide the  
switch to the mode you would like to use.  
•
Use HEAT mode to control your furnace and  
warm your home.  
In HEAT mode, HEAT is displayed right of the  
set temperature.  
•
•
•
HEAT will display solid if there is no load.  
While the 1st stage of heating is active, HEAT  
will flash.  
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•
If a second stage of heat is called for, the  
5.11 OVERRIDE  
flashing rate of HEAT increases  
During RUN, set temperatures may be  
If the 3rd stage of heat activates, the display will temporarily altered from their programmed  
•
also flash "AUX " in addition to HEAT flashing.  
values. Immediately after a set temperature has  
been altered, the 2-hour default duration may be  
adjusted within the range from 1 to 4 hours. The  
temporary set temperature(s) will be used for the  
duration of the OVERRIDE.  
• Press either the UP or DOWN key. The current  
modes set temperature will begin to flash.  
• Adjust the set temperature as desired.  
• After a few seconds, the default 2-hour duration  
will flash in the time area of the display.  
• Adjust the duration in 15-minute increments,  
from between 1 to 4 hours.  
5
.7 COOL  
•
Use COOL mode to control your air conditioner,  
cooling your home.  
In COOL mode, COOL is displayed right of the  
set temperature.  
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COOL will display solid if there is no load.  
While the 1st stage of cooling is active, COOL  
will flash.  
If a second stage of cooling is called for, the  
flashing rate of COOL increases  
•
•
When the duration stops flashing, the  
5
.8 OFF  
OVERRIDE has been initiated and the Set  
Temperature side of the display will show  
•
Slide the MODE switch to OFF when no heating  
or cooling is desired. Heating and cooling will be OVERRIDE  
.
disabled, and the set temperature side of the  
display will be empty.  
• The adjust temperature will remain the set  
temperature in the current mode for the duration  
of the OVERRIDE. Then temperature settings  
return to their program values.  
5.9 DEFAULT PROGRAM  
•
As supplied from the factory, your thermostat  
• OVERRIDE may be cancelled by initiating a  
HOLD and then canceling it, changing the  
position of the mode switch, or rotating the  
will use its default program for temperature  
control. This program and all other settings may  
be restored to their default values via a  
SOFTWARE RESET. Please refer to DEFAULT  
TEMPERATURE PROGRAM for program times  
and temperatures.  
®
SPEED DIAL .  
5.12 FAN MODES  
•
The FAN switch controls which of three fan  
modes your thermostat is to use. These modes  
are AUTO, CLEAN and ON.  
5
.10 HOLD  
Hold is the simplest method to maintain fixed set  
temperatures.  
•
temperature HOLD while in RUN or OVERRIDE.  
HOLD will be displayed above the set  
temperature in the display.  
5.12.1 AUTO  
Press HOLD once to enter permanent  
•
AUTO mode runs the fan only to fulfill your  
heating and cooling requirements.  
•
Pressing this button again will toggle HOLD off  
5.12.2 ON  
and return to RUN and the programmed set  
temperature.  
• ON mode runs your system fan continuously.  
•
Changing system mode or rotating the SPEED  
®
DIAL will also cancel a HOLD.  
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®
5
.12.3 CLEAN CYCLE  
PERIOD  
HEAT MODE  
COOL MODE  
®
0
0
0
0
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LUX’s Clean Cycle allows you to program a  
Morning 6:00 AM 70 F (21 C) 6:00 AM 78 F (26 C)  
Day  
Evening 6:00 PM 70 F (21 C) 6:00 PM 78 F (26 C)  
0 0 0 0  
8:00 AM 62 F (17 C) 8:00 AM 85 F (29 C)  
0 0 0 0  
forced air system to flow air through your  
system’s filter, cleaning the air in your home,  
even when heating or cooling is not being  
utilized. In CLEAN mode the fan maintains the  
programmed minimum run time; it may run  
additional time as required to maintain  
temperature control. The program used avoids  
additional fan time when the minimum run time  
has been met over the last hour through  
temperature control. Minimum fan run times are  
met by running one-third the hourly requirement  
at twenty-minute intervals. The default minimum  
fan run time is 15 minutes per hour.  
0 0 0 0  
10:00 PM 62 F (17 C) 10:00 PM 82 F (29 C)  
Night  
6
.2 EDITING HEAT OR COOL PROGRAMS  
You can change any preset times and/or  
temperatures to suit your schedule for each day  
of the week (7 Day Programming). The four  
periods each day are named Morning (MORN),  
Day, Evening (EVE), and Night (NITE).  
6
.2.1 WEEKDAY PROGRAMMING  
To change the HEAT or COOL program:  
Set to HEAT COOL, or AUTO with the mode  
switch.  
Rotate dial to SET WEEKDAY PROGRAMS  
PROGRAM Mo MORN and START AT will be  
•
,
5.13 DISPLAY ILLUMINATION  
•
.
For visibility in the dark, your LUX thermostat  
incorporates an attractive electro-luminescent  
display backlight.  
,
,
displayed, with the Set Time flashing.  
•
Press the light bulb button right of the display  
to illuminate.  
Pressing this or other buttons will keep the  
display illuminated.  
Programming is performed in the following  
order.  
•
1
2
3
4
5
6
Mo Morn Start Time  
Mo Morn Heat Set Temperature  
Mo Morn Cool Set Temperature  
Mo Day Start Time  
Mo Day Heat Set Temperature  
. . . and so on until Fri Nite is fully  
5
.14 AUDIBLE BEEP  
When a key is pressed, the thermostat will emit  
an audible beep. The beep will terminate within ⁄  
second while a button is held.  
1
2
programmed at which point pressing NEXT again  
will begin the list at Mo Morn Start Time.  
6. PROGRAMMING  
•
Use the UP/DOWN keys to change the start  
time for this period. Press UP/DOWN buttons to  
change the time in 15-minute increments. Hold  
UP/DOWN button to change the time at rate of  
6
.1 DEFAULT TEMPERATURE PROGRAM  
As supplied from the factory, the following  
program will be used for temperature control in  
RUN MODE. This program and all other software  
settings may be restored to their default values  
via a SOFTWARE RESET.  
60 minutes/second.  
•
One period ends at the start time of the next  
period. The end of one period may not be any  
closer to the beginning of the next period than  
one 15-minute increment. Moving a start time  
too close to the next start time results in the  
latter time being pushed ahead too. Press NEXT  
7
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®
to accept the displayed start time and advance to  
the HEAT SET TEMPERATURE, it will flash to  
show that it may be edited.  
6.3 CLEAN CYCLE (IAQ FAN  
PROGRAMMING)  
®
Clean Cycle programming is similar to  
The HEAT SET TEMPERATURE will be displayed temperature programming. It has four  
•
on the right side of the display with the HEAT  
indicator visible.  
consecutive periods, which are independent of  
the four temperature periods. The default setting  
•
Edit the HEAT SET TEMPERATURE, then press  
®
for your systems fans CLEAN CYCLE program  
NEXT to accept and advance to the COOL SET  
TEMPERATURE, it will flash to show that it may  
be edited.  
requires it to run at least 15 minutes per hour.  
Default Program periods are:  
Default Periods  
MORN  
DAY  
EVE  
NIGHT  
Time  
•
There is a minimum value that be maintained  
6:00 AM (6:00)  
8:00 AM (8:00)  
6:00 PM (18:00)  
10:00 PM (22:00)  
between the HEAT SET TEMPERATURE and  
COOL SET TEMPERATURE. That value is called  
the Dead band. Its default is 3˚F. It is  
programmable and may be changed. See  
ADVANCED FEATURES. If you move the heat set  
temperature too close to the cool set  
temperature, the cool set temperature will move  
away from the heat set temperature to maintain  
the Dead Band. Conversely, the heat set  
temperature will move if you adjust the cool set  
temperature too close.  
®
To edit the CLEAN CYCLE program:  
•
•
•
•
Move Fan switch to CLEAN  
Rotate the dial to AIR FILTER  
Press HOLD for 2 seconds.  
PROGRAM FAN START AT, MO (day) and  
.
.
,
,
MORN (period) will all be visible. Current start  
time will flash in time area.  
•
Edit the COOL SET TEMPERATURE, then press  
NEXT to accept and advance to the next period.  
When you have changed the Cool set  
Program is performed in the following order.  
•
1
2
3
4
5
Mo Morn Start Time  
Mo Morn Minimum ON Time  
Mo Day Start Time  
Mo Day Minimum ON Time  
. . . and so on until Sun Night is fully  
temperature to your desired temperature, press  
NEXT to advance to the next period. Its start  
time will be flashing indicating that it is under  
edit.  
•
When all the periods for a day have been set,  
programmed at which point pressing NEXT again  
will begin the list at Mo Morn Start Time.  
the start time for the next weekday Morning  
period will be displayed to begin editing the  
settings for that day.  
•
Press UP/DOWN to change start time for this  
•
Complete programming for all weekdays and  
period in 15-minute increments. Hold UP/DOWN  
button to change the time at rate of 60  
minutes/second.  
rotate the dial back to RUN to accept all current  
values and end the programming session.  
6
.2.2 WEEKEND PROGRAMMING  
• Press NEXT to accept the start time, and  
advance to set minimum fan on time per hour.  
Weekend programming is identical to weekday  
programming except that you must rotate the dial Current minimum fan run time will flash with  
to SET WEEKEND PROGRAMS and the sequence  
of days that you may program is Sa and Su, then  
repeating this two day sequence.  
MIN/HR.  
• Press UP/DOWN to alter the minimum ON Time  
setting by 3 minutes. Time can be adjusted from  
8
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0
0
to 60 minutes in increments of 3 minutes. Set  
MIN/HR to allow AUTO control for particular  
7.2 FILTER MONITOR  
• Your thermostat will warn you that your HVAC  
system’s air filter should be changed by  
displaying FILTER in the time temperature display  
area, after the system’s fan has run the number  
of hours specified by this limit.  
periods while CLEAN is used in others. Set the  
fan duration to 60 MIN/HR to run the fan  
continuously for this period.  
•
Press NEXT to advance to the next period.  
After the four program periods of day have been  
programmed, pressing NEXT will advance to the  
following day’s MORN period.  
7
.2.1 FILTER USAGE  
To view the number of hours the thermostat has  
activated the fan since the last timer reset:  
•
One period ends at the start time of the next  
•
Rotate the dial to the AIR FILTER position. The  
current filter usage will be shown with HRS  
FILTER  
To reset the timer to 0, press UP or DOWN  
period. The end of one period may not be any  
closer to the beginning of the next period than  
one 15-minute increment. Moving a start time  
too close to the next start time results in the  
latter time being pushed ahead too.  
.
•
once. Pressing UP or DOWN again will toggle  
between 0 and the current value. The value in  
display when you exit this mode will be the value  
retained in memory. Leave the value at 0 to reset  
the timer.  
•
Rotate the dial away from the SET FAN  
PROGRAMS/AIR FILTER position to exit fan  
programming.  
6
.4 COPY  
• To exit the AIR FILTER mode, rotate the dial to  
another position.  
•
Pressing COPY will copy the previous day’s  
temperature or fan program into the current day  
and advance the thermostat to the beginning of  
next day.  
7.2.2 FILTER LIMIT  
This general rule will provide you with a good  
estimate of your filter’s life in hours. Assume  
that the fan will run at 1/3 duty cycle or 8 hours  
per day. Common 90-day filters are then good  
for 90*24/3=720 hours of use. This is the  
default limit value. Setting the filter counter limit  
to 0000 will disable the change filter indicator.  
Valid entries are from 0 to 2000 hours.  
7. ADVANCED FEATURES  
7.1 KEYBOARD LOCK  
This sequence of keys will lock and  
unlock all settings and programs. When locked,  
a padlock icon will be visible  
above the time / temperature  
area of the display.  
To set the number of hours of filter use before  
replacement is indicated:  
• Rotate the dial to the AIR FILTER position. The  
current filter usage will be shown with HRS  
FILTER  
Hold NEXT for 2 seconds. The Filter limit will  
be displayed.  
Refer to your Air Filter package to determine  
.
•
•
your filter’s recommended life. If given in days,  
multiply by 8 to find the recommended setting in  
hours of filter usage.  
9
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•
1
•
Use UP/DOWN keys to adjust the filter limit in  
0-hour increments to the recommended value.  
Rotate the dial to RUN to finish this setting.  
Temperature Offset value will flash.  
• Use the UP/DOWN keys to adjust the offset  
value.  
•
Return the dial to its RUN position to accept the  
7.3 ENERGY USAGE  
new value.  
Your thermostat records the total number of  
hours the thermostat has activated heating and  
cooling with six separate timers. They measure:  
7.5 RESET  
Your thermostat has two RESET buttons. The  
Software RESET in on the front of the thermostat  
behind the door. It is labeled RESET.  
HARDWARE RESET is on the rear of the circuit  
board.  
•
•
•
•
•
•
Today’s cumulative heating time.  
Yesterday’s cumulative heating time.  
Total cumulative heating time.  
Today’s cumulative cooling time.  
Yesterday’s cumulative cooling time.  
Total cumulative cooling time.  
7.5.1 HARDWARE RESET  
Use this small white button labeled H_RST after  
changing Setup Option Jumper positions to  
effect the changes. The Hardware RESET turns  
Heat, Air and ˚an off, resets the unit’s clock, and  
reads the Setup Option jumper positions, before  
initiating normal operation.  
To view HEAT and COOL energy usage:  
•
•
Slide the mode switch to HEAT or COOL  
Rotate the dial to the ENERGY USAGE position,  
.
to review today’s usage. HRS USAGE, Mode and  
Current Day are all shown along with the usage  
value.  
7.5.2 SOFTWARE RESET  
•
•
Press NEXT to review yesterday’s usage.  
Press NEXT again to review Total usage. The  
Use this feature to make all settings and  
programs their default values. The Software  
RESET button turns Heat, Air and ˚an off, resets  
the unit’s clock, and reads the Setup Option  
jumper positions. It then makes all settings and  
programs their default values before initiating  
normal operation.  
Total timer may be changed to zero by pressing  
UP or DOWN while Total time is displayed. To  
restore count, press UP or DOWN again.  
•
To finish review and/or reset of this mode’s  
energy monitor, rotate the dial to another mode.  
The current values will be the values retained in  
memory. Leave the value at 0 to reset the  
cumulative timer.  
N O T E: Pressing this button will overwrite  
your program and install the default values of  
all temperature programs and setup values  
into the unit’s nonvolatile memory. To ease  
reprogramming later, record your thermostat’s  
programs and settings in the table provided  
before using this button. (See Page 16)  
7.4 CALIBRATION OFFSET  
Your thermostat is accurately calibrated at the  
factory to within ± 1ꢀ˚. An offset value up to ±±ꢀ˚  
may be added to the temperature value that the  
thermostat measures. This may allow you to  
match this thermostat to another. To change this  
offset from its default value of 0:  
7.6 TEMPERATURE VARIATION / SWING  
•
Your thermostat works by turning your heating  
or cooling system 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  
•
•
•
Open the door on the front of the thermostat.  
Rotate the dial to SET DAY/TIME  
Simultaneously press NEXT and HOLD. The  
.
1
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3
to 6 times per hour. A smaller swing number  
To change this value:  
• Rotate the SPEED DIAL to ENERGY USAGE  
• Press NEXT and COPY simultaneously. The  
Temperature section of the display shows SET  
®
increases the number of cycles, so room  
temperature is more constant. A larger swing  
number decreases the number of cycles, saving  
energy in most cases.  
.
TEMP SWING and 2 denoting that you are  
setting SWING 2. The Time section flashes the  
current setting.  
7
.6.1 SWING 1 – 1st STAGE  
•
Select one of the 9 values from 025 to 225 with  
the UP/DOWN buttons.  
Return the SPEED DIAL to RUN  
This setting controls when the first stage of  
heating or cooling turns on and off.  
•
®
•
.
In HEAT, Swing 1 sets the temperature variation  
the system allows below the set temperature  
before switching the first stage heat source on,  
or above the set temperature before switching  
the first stage heat source off.  
7.7 DEAD BAND  
• When using Auto-Changeover, dead band  
provides a disallowed temperature range between  
the maximum heat set temperature and  
•
In COOL, Swing 1 sets the temperature  
variation the system allows above the set  
temperature before switching first stage of  
cooling on, or below the set temperature before  
switching the first stage of cooling off. To  
minimum cool set temperature. Dead Band may  
be set from 1 to 6 degrees. For example, with  
auto-changeover active, dead band set to 3˚F and  
heat set to 70˚F, the minimum allowed cool set  
temperature will be 73˚F. If the cool set  
temperature is lowered, then the heat set  
temperature will be lowered by the same amount  
maintaining the 3˚F Dead band.  
change this value:  
®
•
•
Rotate the SPEED DIAL to ENERGY USAGE  
.
Press NEXT and HOLD simultaneously. The  
Temperature section of the display shows SET  
TEMP SWING and 1 denoting that you are  
setting SWING 1. The Time section flashes the  
To change this setting:  
current setting.  
®
•
•
•
Set SPEED DIAL to RUN  
.
•
Select one of the 9 values from 025 to 225 with  
Set Temperature MODE to AUTO  
Press NEXT and COPY simultaneously to 2  
.
the UP/DOWN buttons.  
®
Return the SPEED DIAL to RUN.  
•
seconds. The display shows SET DEAD BAND  
,
while the Time/Temperature section flashes the  
current setting.  
7.6.2 SWING 2 – 2nd Stage  
•
This setting controls when the second stage of  
• Use UP/DOWN keys to adjust the DEAD BAND  
in 1-degree increments.  
• Press and release NEXT to return to RUN. Or,  
after 30 seconds the unit will automatically  
reverts to RUN mode.  
heating or cooling turns on and off. It controls  
the temperature variation the system allows  
above and below Swing 1’s limit before calling  
for a second stage. Once a second stage is  
activated, it will remain on until the set  
temperature has been reached. (Note: The  
Swing setting for the 3rd Stage of Emergency  
Heat is not adjustable, it will always equal that of  
Swing 2).  
8. SET UP OPTIONS  
•
See drawing on page 16. There are five  
jumpers on the circuit board. Each controls a  
setting depending on its position. Jumpers are  
located on the rear of the thermostat’s circuit  
1
1
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board. For reference, there are a table of settings comfort period must be higher than the setback  
and jumper positions printed there as well. They  
are described here from J3, the rightmost  
jumper, to J7, the leftmost jumper.  
period.  
In Cool mode, the set temperature of the  
comfort period must be lower than the setback  
period.  
•
8.1 MINIMUM RUN TIME – J3  
•
The position of J3 sets the minimum length of  
8
.5 FAN OVERRUN TIME – J7  
time that the thermostat must remain with HEAT  
or COOL either on or off before it will  
•
When this feature is enabled, Delay ON time  
between the 1st stage of the compressor and fan  
is 5 seconds and Delay OFF between the 1st  
stage of compressor and fan is 1 minute.  
automatically switch to the alternate On or Off  
state. This feature prevents short cycling, and  
provides compressor protection for cooling units.  
Choices are 2 or 5 minutes. Default position as  
shipped is 5 minutes.  
•
When this feature is disabled, there is no delay  
time between 1st stage of the compressor and  
the fan. Default position as shipped is Disabled.  
8.2 CLOCK FORMAT – J4  
•
The time shown on the thermostat’s clock may  
8.6 REPOSITIONING JUMPERS  
be display in 12 or 24-hour format. Set this  
option to your preference. Default position as  
shipped is 12-hour format.  
See the diagram on Page 16 to determine the  
jumper position corresponding to the option you  
desire. The table is also printed on the circuit  
board. If necessary, change the jumper position  
by pulling it straight off the pins it covers.  
8
.3 TEMPERATURE DISPLAY FORMAT (F/C  
DISPLAY) – J5  
Temperature may be displayed in Fahrenheit or  
Replace the jumper over one pin for OPEN, or  
both pins for CLOSED. When all changes have  
•
Celsius with this option. Default position as  
shipped is F.  
been made, press the Hardware Reset Button  
.
See HARDWARE RESET.  
These jumpers are located inside the thermostat  
on the rear of its circuit board. To access them,  
remove the unit from the wall by pressing up on  
the thumb latch at the bottom of thermostat, and  
swinging the body up and away to separate  
them.  
To change a setting, the jumper must be  
repositioned and a Hardware Reset must be  
performed. See HARDWARE RESET.  
8
.4 SMART RECOVERY – J6  
Smart Recovery allows your HVAC system to  
attempt to recover from a setback period and  
reach your desired comfort temperature by the  
beginning of your programmed comfort period.  
This jumper allows you to choose Smart  
Recovery to be On or Off. Default position as  
shipped is Off.  
•
An initial Smart Recovery will start _ hour  
before the programmed comfort temperature.  
9
. BATTERIES/MAINTENANCE  
•
•
•
Maximum Smart Recovery time is one hour.  
If enabled, Smart Recovery will initiate if:  
Recovery is valid, from an evening setback to  
• Depending on your installation, your unit may  
require batteries to control your HVAC system.  
Replace your thermostat’s batteries at least once  
a year or when the battery symbol appears in the  
display.  
morning comfort or day setback to evening  
comfort period.  
•
In Heat mode, the set temperature of the  
1
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9.1 BATTERY INSTALLATION  
11. WARRANTY  
1
2
. Remove fresh batteries from their carton.  
. Remove body of thermostat from the wall as  
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  
described in installation.  
. Remove the used batteries if present and  
3
replace them within 90 seconds to avoid having  
to reset the day and time.  
®
4. Install two new "AA" size Energizer or  
®
Duracell Alkaline batteries. Observe the polarity from the date of original purchase. Some states  
marking shown in the battery compartment.  
. Re-hang it on its base plate as described in  
installation.  
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  
5
W A R N I N G:  
Replace your thermostat’s batteries with new  
purchase. Please refer to "TECHNICAL  
®
®
Energizer or Duracell Alkaline batteries at  
least once a year or when the battery symbol  
appears in the display.  
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.  
Use of high quality alkaline batteries is  
absolutely required for your thermostat to  
operate properly.  
10. 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  
http://www.luxproproducts.com. Our web site  
offers you answers to the most common  
technical questions, and also permits you to  
email your questions to our technical support  
staff at your convenience.  
1
3
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12. WIRING DIAGRAMS  
TYPICAL PSPHA732  
HEAT PUMP & AUX HEAT HOOKUP  
NOTE 7  
G
O
B
W
Y2  
R
Y1  
C
E
NOTE 4  
OPTIONAL  
JUMPER  
NOTE 2  
NOTE 3  
SYSTEM COMMON  
REVERSING  
VALVE  
AUX  
HEAT  
COMP  
COMP  
FAN  
XFMR  
STAGE STAGE  
2
1
AC LINE  
WIRING DIAGRAM NOTES  
. Dashed wires are optional.  
1
2
. If an "E" wire was connected to your old thermostat, it should be re-connected to the "E" terminal on  
the new thermostat, and the optional jumper between "W" and "E" should not be used. Install this optional  
jumper if you would like to use auxiliary heat as an emergency heat system.  
3
4
. Optional common wire to terminal "C" allows system power to power thermostat instead of batteries.  
. Use "B" or "O" wire but not both. Refer to equipment manufacturer's instructions to determine which  
one to use.  
. If a "Y" and "C" wire are both present in your system, then "C" is the common wire.  
. Warning: If a "B" wire in you system is a common wire and you connect it to the "B" terminal instead of  
C", this may cause damage to you system.  
. Use terminal "Y2" only if you have a second compressor stage.  
5
6
"
7
WARNING: THIS IS A LOW VOLTAGE THERMOSTAT (24 volts). A SERIOUS RISK OF FIRE EXISTS IF  
YOU CONNECT THIS THERMOSTAT TO A LINE VOLTAGE APPLICATION (typically 115 or 230 volts). IF  
UNCERTAIN ABOUT THE VOLTAGE CONSULT A PROFESSIONAL ELECTRICIAN.  
1
4
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13. CROSS REFERENCE CHART FOR MULTI-STAGE HEAT PUMPS  
HEAT PUMP SYSTEM  
WITH COMMON TERMINAL  
NEW THERMOSTAT AND  
CORRESPONDING TERMINALS  
TAPE OFF  
NOT USED  
E
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
F
Y
Y2  
R
RC-RH  
R
O
W1  
W1  
W
W2  
W2  
W1  
W2  
W1  
W2  
W2  
W1  
B
C
X1  
C
L
AMANA  
Y1  
AMANA PHD-2,-3,-4,or -5  
ARCO / Friedrich  
ARCO / Snyder General  
BARD  
X2  
Y
Y
RC  
R
C
L
X
L
L
F
F
L
L
E
O
C
E
Y1  
Y
R
B
W1  
X
BARD, HP, WH, MHP, HPQ  
BDP / BRYANT  
E
R
X
E
Y
R
O
O
O
O
O
O
V
O
O
C
BDP  
E
Y
R
W1 (W2)  
W1  
C
BDP 34427DP97  
CARRIER  
E
E
Y
R
W2  
C
Y
Y1  
R
C
CARRIER 5Q  
to W2  
E
Y, W1  
Y
R
W2  
C
L
CARRIER 50Q, QT382  
COLEMAN  
R
W2  
W2  
W2  
C
L
L
Y
RED  
R
BLCK  
X
COMFORTMAKER  
COMFORTMAKER H-R8111Y594R1375  
FEDDERS  
E
E
Y
Y
R
W1  
W1  
C
X
T
K
Y
R
W2  
W
W2  
C
GE BAY  
GE BMV 748A  
HEATWAVE SHP251  
HEIL-QUAKER / Whirpool  
JANITROL / Goodman  
LENNOX TYPICAL HP6  
LENNOX HP8  
X2  
Y
R
O
O
O
O
O
R
R
R
R
R
R
B
X1  
Y
R
W1  
W1  
B
E
E
R
X
Y
Y
R
W
W2  
Y
Y
Y
B
R
C
M
M
M
M
M
M
Y1  
Y
V/VR  
V/VR  
V/VR  
Y
Y
X
E
E
F
X
LENNOX HP9, 10  
LENNOX HP11  
LENNOX HP14  
LENOX HP16, 18, 19  
MAGIC CHEF PB  
MAGIC CHEF PE  
MILLER HEAT / INNERTHERM CORP  
PAYNE  
RHEEM / RUUD  
RHEEM / RUUD (PCA)  
SINGER R81111594R1375  
SNYDER GENERAL  
H-R811/Y594R1375  
TRANE  
TRANE TW  
WEATHERKING  
WESCO  
F
Y
X
L
(E)  
(E)  
E
F
M2 VR  
M2 V/VR  
Y
X
F
Y
X
L
L
F
V/VR  
R
Y
Y
W2  
W
X
E
G
G
G
G
G
G
G
W1  
C
E
R
O
C
K
Y
R
W2  
W1  
B
X
Z
T
Y/Y2  
Y
R
O/W2  
W/W1  
W2  
W3  
C
E
E
E
R
X
L
L
Y
Y
R
O
O
W2  
W1  
X
R
C
X
G
G
G
G
G
G
G
F
G
G
G
G
G
G
G
G
G
Y
Y
Y
R
R
O
O
O
W1  
W
C
B
X
T
T
X2  
X2  
F
F
R
W
B
W1  
W1  
W1  
Y
R
Y1  
Y1  
O
E
W2  
C
E
E
E
R
C
WESCO / ADDISON  
WESTINGHOUSE H50  
WESTINGHOUSE HE  
WESTINGHOUSE 2 SPEED  
WHITE RODGERS  
WHITE RODGERS  
WILLIAMSON  
R
X
R
O
W
H2  
X
L1  
C
V/VR  
Z
(B)  
X
W
E
Y1 Y2  
R
R
R
R
R
R
R
R
R
O
O
O
O
X
L
L
Y
Y
Y
Y
Y
Y
W2  
W2  
W3  
W3  
W
C
E
X1  
X
E
W2  
W2  
L
L
WILLIAMSON  
E
W1  
W1  
X
YORK  
O
O
B
X
YORK  
(E)  
E
E
W2 (W3)  
W1  
W2  
C
(L)  
YORK EBHP  
W2  
W3  
X2  
X
ZONEAIRE  
Y
L
Important: Use either the B or O terminal, never both.  
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4. USER PROGRAM TABLE  
Before hitting the software reset button, record your thermostat’s programs and settings in the table  
provided below.  
HEAT  
COOL  
DAY  
PERIOD  
TIME TEMP. TIME TEMP.  
MORN  
DAY  
EVE  
THURS  
HEAT  
COOL  
DAY  
PERIOD  
TIME TEMP. TIME TEMP.  
NIGHT  
MORN  
DAY  
MORN  
DAY  
EVE  
MON  
FRI  
SAT  
SUN  
EVE  
NIGHT  
MORN  
DAY  
NIGHT  
MORN  
DAY  
TUES  
WED  
EVE  
EVE  
NIGHT  
MORN  
DAY  
NIGHT  
MORN  
DAY  
EVE  
EVE  
NIGHT  
NIGHT  
15. JUMPER TABLE  
-
-
BATTERY  
COMPARTMENT  
J7 J6 J5 J4 J3  
JUMPERS  
MOUNTED  
ON  
CURCUIT  
BOARD  
+
H_RST  
BACK OF THERMOSTAT BODY  
WITH COVER REMOVED  
OPEN  
2min  
4hr  
CLOSED  
5min  
12hr  
F
J3  
J4  
J5  
2
C
TERMINALS  
S/R On S/R Off J6  
Overrun Overrun J7  
Enable Disable  
E
C Y1 R Y2 W B O G  
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.  
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