P721
7-DAY or 5/2-DAY PROGRAMMABLE,
OR NON-PROGRAMMABLE THERMOSTAT
INSTALLATION AND OPERATING INSTRUCTIONS
52206
IMPORTANT!
• Please read all of these instructions carefully before beginning
installation.
• Label every wire terminal designation on your existing thermostat wiring
before removing your old thermostat.
• Ignore the color of the wires since they may not comply with any
standard. Please connect wires using the terminal letter designations.
Thank you for your confidence in our product. To obtain the best results from
your investment, please read and 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 possibly your heating and cooling system. These
instructions may contain information beyond that which may be required for your
particular installation.
CAUTIONS AND WARNINGS . . . . . . . . . . 2
SYSTEM COMPATIBILITY . . . . . . . . . . . . 3
FEATURES . . . . . . . . . . . . . . . . . . . . . . . 4
TOOLS YOU MAY NEED . . . . . . . . . . . . . . 4
MOUNTING LOCATION . . . . . . . . . . . . . . 5
REMOVE OLD THERMOSTAT . . . . . . . . . . 5
INSTALL THERMOSTAT BASE . . . . . . . . . 6
WIRING INFORMATION . . . . . . . . . . . . . . 7
WIRING DIAGRAMS . . . . . . . . . . . . . . . . 9
COMPLETE THE INSTALL . . . . . . . . . . . 15
FRONT PANEL ITEMS . . . . . . . . . . . . . . 16
SYSTEM CONFIGURATION AND SETUP
OPTIONS . . . . . . . . . . . . . . . . . . . . . . . 17
OPERATING INSTRUCTIONS . . . . . . . . . 19
TEMPERATURE PROGRAMS . . . . . . . . . 21
ADVANCED FEATURES . . . . . . . . . . . . . 23
BATTERY REPLACEMENT . . . . . . . . . . . 24
TECHNICAL ASSISTANCE . . . . . . . . . . . 24
LIMITED WARRANTY . . . . . . . . . . . . . . 25
MERCURY NOTICE . . . . . . . . . . . . . . . . 25
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 Procter & Gamble Company
© 2015 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED
P721
LCD Display Screen
Fan
Mode
Switch
SET, NEXT,
and HOLD
Buttons
Fan
Auto
On
Set
Next
Hold
Heat
Off
Cool
System
Mode
Switch
UP and DOWN Buttons
SYSTEM COMPATIBILITY:
The electrical rating for this thermostat is 1.5 Amps per terminal, with a
maximum total combined load of 2.0A for all terminals combined.
COMPATIBLE WITH:
• Most 24-volt, heating and cooling systems
• 2 stage heat / 1 stage cool: gas, oil, or electric systems
• 2-wire hydronic (hot water) zone valves
• Millivolt heaters (including wall heaters / gas fireplaces)
NOT COMPATIBLE WITH:
• 120/240 VAC line-voltage systems (without a transformer)
• Heat pump systems
• 3-wire hydronic (hot water) zone valves
(ask your LUXPRO dealer for thermostats to control these systems)
3
FEATURES:
• 7-day programming, 5/2-day programming, or non-programmable options
• All days can be programmed separately
• User-selectable periods per day (2 or 4)
• Lighted display
• Keypad lockout for unauthorized users
• Manual temperature hold
• Temporary temperature override
• Adjustable temperature differential / cycle-rate
• User temperature calibration
• Adjustable heat/cool set temperature limit stops
• Dual-powered (battery and/or 24-volt system powered)
• F/C temperature display
• 5/2-minute selectable time delay for equipment protection
TOOLS YOU MAY NEED:
• Screwdrivers
• Wire Stripper
• Wire Cutter
• Drill with assorted drill bits (new installations only)
4
MOUNTING LOCATION:
On replacement installations, mount the new thermostat in place of the old one
unless the conditions listed below suggest otherwise. On new installations,
please follow these general guidelines:
1. Mount the thermostat on an inside wall, about 5 ft. (1.5m) above the floor.
2. Do not locate the thermostat where air circulation is poor such as in a corner,
alcove, or behind a door that is normally left open.
3. Do not locate the thermostat where unusual heating or cooling conditions may
be present, such as: direct sunlight, above a lamp, television, or radiator, or on
a wall next to an exterior door or window.
4. Do not locate in a damp environment, as this can lead to corrosion that may
shorten thermostat life.
5. If painting or construction work is still ongoing, cover the thermostat
completely or wait until this work is complete before installation.
WARNING:
All wiring must conform to the local codes and ordinances that are in your
particular location.
REMOVE OLD THERMOSTAT:
1. Turn OFF the electricity to all heating and cooling
components. Do not turn the electricity back on until
all work is completed.
2. Remove the front portion of your old thermostat to
expose the wiring connections.
FF
O
3. Write down the letters printed near each wire terminal
that is used, and also the color of each wire that is
connected to it. Self-adhesive wire labels are also
enclosed.
4. Carefully remove the wires one at a time, and bend them in a manner so that
they do not fall back inside the wall. Do not allow bare wire ends to touch
each other.
5. Loosen the mounting screws for the old thermostat and carefully remove it
from the wall.
5
INSTALL THERMOSTAT BASE:
Set
Next
Hold
Heat
Off
Cool
HOUSING RELEASE TABS
(UNDERNEATH BOTTOM EDGE)
1. Strip wire insulation leaving only 3/8 in. (9.5mm) bare wire ends, and clean off
any corrosion present.
2. Fill the wall opening with non-combustible insulation to prevent drafts from
affecting the thermostat’s normal operation.
3. Separate new thermostat housing using your thumb and index finger. Provide
pressure in opposite directions to the release tabs under the bottom edge of
the housing.
4. Route the wires through the opening in the new thermostat base plate, and
hold the base against the wall. Try to line up the screw holes from the prior
thermostat, and install the mounting screws.
5. If the previous holes cannot be used, hold the thermostat base against the
wall so that it appears straight and level (position the base for best
appearance) and mark for the new screw holes. Attach the base to the wall
using the screws provided (use the supplied plastic anchors if needed when
mounting to a soft material such as drywall).
6
WIRING INFORMATION:
CONNECTING THE WIRES:
When attaching the wires to the thermostat, please ensure that the bare wire
ends are held ALL the way into the terminal block while the screw is being
tightened.
WIRING BASE PLATE NOTICE:
This thermostat model is part of a family of similar models that have the same
general visual appearance. Even though this base plate may look the same as
base plates from other models, the wiring connections may have different
terminal letters for different purposes. Please do not interchange the back plates
and/or thermostat front halves of other similar looking models. Doing so may
cause undesired heating and/or cooling operation to occur.
7
WIRING DIAGRAM NOTES:
(Important, please read all notes before connecting wires)
• If the information provided in the following wiring diagrams does not clearly
represent or match your system, please refer to the “TECHNICAL ASSISTANCE”
section of this manual, and contact us before removing any of your existing
thermostat wiring.
• All of the dashed wires shown in the wiring diagrams are either optional, or
their usage depends upon your specific system type or brand. For example:
Diagram #1 shows the fan wire as optional. If your system does not have a
fan, than this terminal will not be used.
• Terminal letters shown in black represent typical wiring applications.
Depending upon the brand of your specific system or thermostat, your terminal
letters may not match exactly. Terminal letters shown in gray represent other
possible wiring designations that you might see on your existing thermostat
terminals.
• The optional “C” terminal is used for powering the thermostat by the 24-volt
system, using the System Common wire. This can be used alone, or in
addition to installing batteries as a backup. NOTE: connecting the System
Common wire to the thermostat is not necessary for heating and cooling to
function properly.
• If your old thermostat has both a “Y” and “C” wire both present, then “C” is
most likely a System Common wire.
• If replacing an old thermostat that has a mechanical clock, there may be two
wires labeled as “C” for the clock power. Tape off these wires and do not
connect them to the “C” terminal of this thermostat.
8
WIRING DIAGRAMS:
DIAGRAM
SYSTEM TYPE / DESCRIPTION
PAGE #
#1
#2
#3
#4
CONVENTIONAL:
CONVENTIONAL:
CONVENTIONAL:
CONVENTIONAL:
HEATING ONLY ..................................................10
1-STAGE
2, 3, 4 WIRES
HEATING ONLY ..................................................11
2-STAGE
3, 4, 5 WIRES
COOLING ONLY .................................................12
1-STAGE
3, 4 WIRES
HEATING AND COOLING .....................................13
1 OR 2-STAGE HEAT
1-STAGE COOL
4, 5, 6 WIRES
#5
CONVENTIONAL:
HEATING AND COOLING .....................................14
TWO-TRANSFORMERS
5, 6, 7 WIRES
9
2 / 3 / 4 WIRES
CONVENTIONAL, NON HEAT PUMP
1-STAGE, HEAT ONLY
(INCLUDING MILLIVOLT)
OPTIONAL
SYSTEM COMMON
#1
C
G
R
X
F
FAN
Factory
RH-RC
Jumper
Wire
RH
V
4
24V HEAT
TRANSFORMER
Installed
W
W1
HEATER
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL,
GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
10
3 / 4 / 5 WIRES
CONVENTIONAL, NON HEAT PUMP
2-STAGE, HEAT ONLY
OPTIONAL
SYSTEM COMMON
#2
C
G
R
X
F
FAN
Factory
RH-RC
Jumper
Wire
RH
V
4
24V HEAT
TRANSFORMER
Installed
W
W1
HEATER
(1ST STAGE)
W2
2ND STAGE
HEAT
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL,
GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
11
3 / 4 WIRES
CONVENTIONAL, NON HEAT PUMP
1-STAGE, COOL ONLY
OPTIONAL
SYSTEM COMMON
#3
C
G
X
F
FAN
Factory
RH-RC
Jumper
Wire
Installed
R
Y
RC
Y1
V
6
24V COOL
TRANSFORMER
A/C
UNIT
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL,
GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
12
4 / 5 / 6 WIRES
CONVENTIONAL, NON HEAT PUMP
1 OR 2-STAGE HEAT AND 1-STAGE COOL
OPTIONAL
SYSTEM COMMON
#4
C
G
R
X
F
FAN
24V
Factory
RH-RC
Jumper
Wire
RH
V
TRANSFORMER
Installed
W
Y
W1
Y1
4
6
HEATER
(1ST STAGE)
A/C
UNIT
W2
2ND STAGE
HEAT
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL,
GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
13
5 / 6 / 7 WIRES
CONVENTIONAL, NON HEAT PUMP
1 or 2-HEAT / 1-COOL, WITH TWO-TRANSFORMERS
OPTIONAL
SYSTEM COMMON
#5
C
G
X
F
FAN
REMOVE
Factory
RH-RC
Jumper
Wire
RH
RC
W
R
V
V
4
6
24V HEAT
TRANSFORMER
R
24V COOL
TRANSFORMER
W1
Y1
HEATER
(1ST STAGE)
Y
A/C
UNIT
W2
2ND STAGE
HEAT
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL,
GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
14
COMPLETE THE INSTALL:
INSTALL BATTERIES INTO THERMOSTAT: Install two brand new Energizer® or
DURACELL® “AA” size alkaline (only) batteries, into the thermostat’s battery
compartment. Ensure the batteries are installed in the proper direction.
GAS / ELEC CIRCUIT BOARD OPTION (“G” TERMINAL FAN OPERATION): This
setting is a plastic shorting cap called a jumper. This jumper must remain
installed, and set to either GAS or ELECTRIC for your system to work properly.
This setting changes how your system’s blower fan (if applicable) is controlled
while the thermostat is in HEAT mode, when the Fan switch in the AUTO position.
This setting does not affect the fan operation while in COOL mode.
When set to “GAS”, the blower fan is controlled solely by the heating system
itself. Systems that would typically use the “GAS” setting would be: natural gas,
propane, or oil furnaces, and boilers.
When set to “ELEC”, the blower fan is controlled directly by the thermostat. This
setting is required for heating systems that do not control their own fan, such as
HEAT PUMPS, and units that only have an electric-resistive heating element as
the heat source.
NOTE: If your blower
fan does not operate
properly after
installation, move the
Gas / Electric option
to the “Electric”
setting.
C
JP1
G
RH
RC
W1
Y
W2
ELEC
GAS
(default)
15
FRONT PANEL ITEMS:
HEAT / OFF / COOL, SYSTEM MODE SWITCH: Set this switch to HEAT to control
your heating system, and COOL to control your cooling system. The OFF position
will disable both the heating and cooling units.
AUTO / ON, FAN MODE SWITCH: When this switch is in AUTO, the blower fan (if
present in your system) will automatically cycle on and off by itself while heating
or cooling is running. When in the ON position, the blower fan will run constantly
with or without a demand for heating or cooling, even when the System Mode
switch is in the OFF position.
NOTE: The Fan Mode switch only works if your system provides a wire for the
thermostat’s “G” wire terminal, to control a blower fan. The Fan Mode switch
has no effect in systems that do not have a blower fan (such as a hot water
radiator system).
SET BUTTON: This button is used to access the temperature program settings
when in heat or cool mode, and for adjusting the day and clock while in off
mode.
NEXT BUTTON: This is used when setting items such as software options, and
temperature programs. When items on the screen are flashing during
adjustments, pressing the NEXT button will cycle through which item is flashing.
HOLD BUTTON: This button activates and deactivates the manual Temperature
Hold feature, which maintains a fixed set temperature indefinitely without
following a program routine. This button is not used when ITEM #02 below is set
to “3” for manual non-programmable.
UP / DOWN BUTTONS: The UP and DOWN buttons are used to control the set
temperature, or adjust any other on-screen items. Typically, an item that is
flashing can currently be adjusted.
16
SYSTEM CONFIGURATION AND SETUP OPTIONS:
Setup options for how the thermostat will function, along with choosing your
particular system type, are performed using a menu on the display screen.
TO ACCESS THE SETUP MENU: Move the System Mode switch into the OFF
position, and then hold down the SET button for approximately 5 seconds until
the screen changes. The menu will always start with item #01, and is advanced
to each following item by a single press of the NEXT button. The options for each
item are changed using the UP or DOWN buttons.
ITEM #01 (TEMPERATURE SCALE):
[1] (default) Shows all temperature values in Fahrenheit.
[2] Shows all temperature values in Celsius.
ITEM #02 (PROGRAMMING STYLE):
[1] (default) 5/2-Day Programming. This style uses a weekday program routine
for Monday, Tuesday, Wednesday, Thursday, Friday, and a separate weekend
program routine for Saturday and Sunday.
[2] 7-Day Programming. This style uses a separate program routine for each of
the 7 days in the week. [3] Manual Non-Programmable. In this setting, there are
no program routines for the thermostat to follow and the temperature control will
be set only by the UP and DOWN buttons on the front panel.
ITEM #03 (PERIOD QUANTITY):
[1] (default) 4-Periods. Thermostat uses four periods per day (called MORN, DAY,
EVE, and NITE).
[2] 2-Periods. The thermostat uses only two periods per day (called DAY and
NITE).
ITEM #04 (MAXIMUM HEAT SET TEMP LIMIT):
[1] (default) Limit 90F (32C). The maximum heating set temperature is 90F (32C)
degrees with no heat mode temperature restrictions.
[2] Limit 80F (27C). The maximum heating set temperature is 80F (27C) degrees.
[3] Limit 70F (21C). The maximum heating set temperature is 70F (21C) degrees.
[4] Limit 60F (16C). The maximum heating set temperature is 60F (16C) degrees.
ITEM #05 (MINIMUM COOL SET TEMP LIMIT):
[1] (default) Limit 45F (7C). The minimum cooling set temperature is 45F (7C)
degrees with no cool mode temperature restrictions.
[2] Limit 55F (13C). The maximum cooling set temperature is 55F (13C) degrees.
17
[3] Limit 65F (18C). The maximum cooling set temperature is 65F (18C) degrees.
[4] Limit 75F (24C). The maximum cooling set temperature is 75F (24C) degrees.
ITEM #06 (STAGE-2 OFFSET):
[2, default] This setting is adjusted as a number from 0 to 9. When set to 0
(ZERO), the second heating stage (W2 terminal) is completely disabled. An Offset
value from 1 to 9 degrees will determine the number of degrees from the set
point that will be required for the second heating stage to turn on.
ITEM #07 (DELAY TIME):
[1] (default) 5 Minutes. Thermostat waits 5 minutes before turning the system
back on after it was last run. The 5 minute setting is fine for most applications,
and provides equipment protection by preventing rapid cycling.
[2] Same operation as above, but reduced to 2 minutes between state changes if
desired.
ITEM #08 (TEMPERATURE SWING):
[1] (default) This is the tightest control, which is plus/minus 0.25F (0.14C)
degrees from the target set temperature.
[2 through 9] These alternate values make the temperature control wider with
more variation. Each incremental setting number adds an additional 0.25F
(0.14C) degrees onto the initial setting. [9] is the widest control setting, which is
plus/minus 2.25F (1.25C) degrees from the set temperature.
ITEM #09 (TEMPERATURE CALIBRATION):
[0 (zero)] (default) At zero, there are no changes made to the base room
temperature measurement. The adjustment is from as low as subtracting
-5F (-3C) degrees from the room temperature, to as high as adding +5F (+3C)
degrees to the room temperature. The internal temperature sensor is accurately
calibrated at the factory, and in most cases this setting should not need to be
altered.
18
OPERATING INSTRUCTIONS:
SET DAY AND TIME: Place the System Mode switch into the OFF position. Press
the SET button one time and the backlight will illuminate; press the SET button
again and the room temperature will disappear from the screen and the day icon
will flash. With the day flashing, press UP or DOWN to adjust the day of the week
shown on the screen. Pressing NEXT will advance from setting the day to setting
the clock, with the time now flashing. Use UP or DOWN to set the time, making
sure the proper AM/PM indication is correct. Holding the UP or DOWN buttons
will make the clock digits scroll rapidly. The thermostat will exit the day/time
adjustment mode if either the SET or NEXT buttons are pressed, or there are no
button presses for approximately 10 seconds.
HEATING AND COOLING: Basic operation of your heating or cooling system can
be obtained by choosing either HEAT or COOL with the System Mode switch. The
temperature can be adjusted using the UP and DOWN buttons. When the
thermostat is first powered up, it will follow a default temperature routine that is
preset from the factory (shown below).
2-PERIOD CONFIGURATION:
PERIOD
DAY
HEAT MODE
6:00 AM 70 °F (21 °C) 6:00 AM 78 °F (26 °C)
COOL MODE
NITE 10:00 PM 62 °F (17 °C) 10:00 PM 75 °F (24 °C)
4-PERIOD CONFIGURATION:
PERIOD
HEAT MODE
COOL MODE
MORN 6:00 AM 70 °F (21 °C) 6:00 AM 78 °F (26 °C)
DAY
EVE
8:00 AM 62 °F (17 °C) 8:00 AM 82 °F (28 °C)
6:00 PM 70 °F (21 °C) 6:00 PM 78 °F (26 °C)
NITE 10:00 PM 62 °F (17 °C) 10:00 PM 75 °F (24 °C)
19
LCD DISPLAY BACKLIGHT: The display screen is lighted to assist viewing at
nighttime, or in locations with low light levels. A press of any button on the front
panel will light the display for approximately 10 seconds. Any button presses
that occur while the light is on will reset the 10-second timer, causing the screen
to remain illuminated for an additional 10 seconds.
TEMPERATURE OVERRIDE: While in Program RUN mode, the set temperature can
be temporarily changed by pressing UP or DOWN. The set temperature will return
to the programmed value stored in memory when the start time of the next
upcoming program period is reached (Morn, Day, Eve, Nite). While a Temporary
Override is in effect, the word “OVERRIDE” will be shown in the display screen.
An Override may be cancelled moving the mode switch to OFF, then back to HEAT
or COOL.
TEMPERATURE HOLD: A Temperature Hold is used for maintaining a fixed set
temperature. Once a Hold is initiated, the thermostat will maintain the set
temperature indefinitely. A Hold may be used for days, weeks, or even months at
a time, as long as the thermostat has adequate power. To enter Hold mode:
press the HOLD button one time and the word “HOLD” will appear in the display.
To cancel a Hold, press the HOLD button one more time. If a complete power
failure occurs during a Temperature Hold, the thermostat will continue to remain
in Hold mode even after the power comes back on. NOTE: If you plan to leave
the thermostat in Hold mode for an extended duration (unattended), it is
advisable to install new Energizer® or DURACELL® "AA" size alkaline batteries
prior to leaving to ensure reliable operation of your heating and cooling system.
STATIC NOTICE: This thermostat is protected against normal static electric
discharges, however to minimize the risk of damaging the unit in extremely dry
weather, please touch a grounded metal object before touching your thermostat.
20
TEMPERATURE PROGRAMS:
By default, this thermostat has 4 separate program periods for both Heat and
Cool mode, they are: MORN, DAY, EVE, and NITE. Each period ends at the start
time of the following period. The heat programs are set in HEAT mode, and the
cool programs are set in COOL mode.
NOTE: If the thermostat is configured to use only 2 periods per day instead of 4
(SYSTEM CONFIGURATION AND SETUP OPTIONS), the thermostat will only use the
DAY and NITE periods. The MORN and EVE periods will not be visible on the
screen.
SET TEMPERATURE PROGRAMS: Place the System Mode switch into the desired
temperature mode that you would like to set the program for. The instructions
below will differ somewhat, depending on whether you are using the 5/2-Day
programming style or the 7-Day programming style.
FOR 5/2-DAY PROGRAMMING OPTION: You will set all 5 weekdays, Monday
through Friday, in one combined process. After the weekdays are complete, you
can advance to set both weekend days, Saturday and Sunday, in one combined
process.
If the backlight is not already illuminated, press the SET button one time to light
the display. With the screen illuminated, press the SET button one time, and you
should now see the words SET and PROGRAM shown at the top of the display
screen, and you should see “Morn” and “MoTuWeThFr” at the bottom of the
display. Use the UP/DOWN buttons to adjust the start time for the MORN period,
then press the NEXT button to advance. Use the UP/DOWN buttons to adjust the
set temperature for the MORN period, then press the NEXT button to advance.
Now adjust the start time and set temperature for the DAY period, pressing the
NEXT button after each to advance. Continue with these same steps to adjust the
start times and set temperatures for the EVE and NITE program periods.
When the NITE period is finished for the weekdays, the thermostat will advance
forward to the weekend program. You should see “Morn” and “SaSu” at the
bottom of the display. Use the UP/DOWN buttons to adjust the start time for the
MORN period, then press the NEXT button to advance. Continue with these same
steps to adjust the start times and set temperatures for the DAY, EVE, and NITE
program periods as desired.
21
FOR 7-DAY PROGRAMMING OPTION: You will be setting each day individually, one
at a time. After any particular day’s program has been set, you will have the
ability to copy these values either to just the next day or to the remaining days
left in the week (described further below).
If the backlight is not already illuminated, press the SET button one time to light
the display. With the screen illuminated, press the SET button one time, and you
should now see the words “SET” and “PROGRAM” shown at the top of the display,
and “Morn” and “Mo” at the bottom of the display. Use the UP/DOWN buttons to
adjust the start time for the MORN period, then press the NEXT button to
advance. Use the UP/DOWN buttons to adjust the set temperature for the MORN
period, then press the NEXT button to advance. Now adjust the start time and
set temperature for the DAY period, pressing the NEXT button after each to
advance. Continue with these same steps to adjust the start times and set
temperatures for the EVE and NITE program periods.
After the NITE period is finished for the weekdays, press NEXT and the
thermostat will advance forward to the Tuesday MORN period. Just like the
previous day, use the UP/DOWN buttons to adjust the start time then press the
NEXT button to advance. Continue with these same steps to adjust the start
times and set temperatures for the remaining periods of the remaining days as
desired.
COPY FEATURE: The copy action takes the time and temperature values from the
previous day, and uses them for the current day. To perform a copy, press and
release the HOLD button one time per copy. You should see the word “COPY”
show up in the display screen for approximately one second, and the day of the
week will have advanced forward to the next day. To keep copying to the next
upcoming days, press and release the HOLD button for each day that you want to
copy the previous day’s values into.
22
ADVANCED FEATURES:
KEYPAD LOCKOUT: You can lock the front panel buttons to prevent unauthorized
tampering of your thermostat settings.
TO LOCK THE KEYPAD: Start with the thermostat at rest, and the display backlight
NOT illuminated. Press the NEXT button one time to illuminate the display
screen, then press the NEXT button 3 more times, followed by the HOLD button 1
time.
TO UNLOCK THE KEYPAD: Start with the thermostat at rest, and the display
backlight NOT illuminated. Press the NEXT button one time to illuminate the
display screen, then press the NEXT button 3 more times, followed by the HOLD
button 1 time.
SOFTWARE RESET: A Software Reset is used to erase ALL heating and cooling
temperature programs, and to return all user-adjustable software settings back
to their original factory default values. To perform a Software Reset, first ensure
that the thermostat’s Keypad Lockout is not enabled and then move the System
Mode switch to the OFF position. Press and hold the SET and NEXT buttons
together for at least 5 seconds. The LCD display screen will become fully
populated (let go of buttons at this point), and than return to normal. The clock
will have to be changed to match the current day and time.
COMPRESSOR PROTECTION BYPASS: This optional feature permits the installer
or service technician to temporarily disable the built in compressor protection
delays. This is most useful for diagnosing and testing the heating and cooling
systems after installation is complete, and should not be used during normal
operation. To activate this feature, first ensure that the thermostat’s Keypad
Lockout is not enabled and then move the System Mode switch to the OFF
position. Start with the thermostat at rest, and the display backlight NOT
illuminated. Press any button one time to illuminate the display screen, and then
press and hold the NEXT and HOLD buttons together for at least 5 seconds.
NOTE: there will no visual confirmation on the display screen, however you
should be able to turn the cooling system on and off without any protection
delays being imposed. All compressor protection delays (in all modes of
operation) will be disabled for 5 minutes. After the 5-minute duration has
expired, the thermostat will return to normal operation automatically.
23
BATTERY REPLACEMENT:
This thermostat is powered by two “AA” Alkaline batteries. The batteries should
be replaced AT LEAST once per year to ensure reliable operation (or sooner if
“LO BATT” appears in the display screen). The batteries are located on the back
of the thermostat’s circuit board. The front portion of the thermostat can be
removed from the back half by using the housing release tabs on the bottom
edge of the thermostat housing.
When installing new batteries, we recommend using only brand new Energizer®
or DURACELL®, “AA” size alkaline batteries. Please observe the polarity
markings shown in the battery compartment to ensure proper installation. When
finished, line up the front of the thermostat to the base, and firmly press together
to securely latch the front and back halves together properly.
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
guides, answers to the most common technical questions, and also permits you
to email your questions to our technical support staff at your convenience.
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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.
MERCURY WARNING AND RECYCLING NOTICE:
Mercury is considered to be a hazardous material. If this
product is replacing an older thermostat that contains mercury
in a sealed glass tube, please view the information on the
is a convenient tool that will inform you of the closest drop off
location for your zip code. If you are unable to access this website, please
contact your local waste management authority for instructions regarding the
proper disposal and recycling of your old mercury thermostat.
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