Lux Products P720 Thermostat User Manual

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

CAUTIONS AND WARNINGS:

• This thermostat requires batteries to operate and failure or sub-standard

performance of the batteries may impair or prevent the correct operation of

the thermostat. Use Duracell^®or Energizer^®alkaline batteries ONLY for all

LUXPRO thermostats requiring batteries. BE SURE TO CHANGE THE BATTERIES

AT LEAST ONCE A YEAR, or whenever you see the LO BATT indication on the

screen. Failure to follow these battery instructions could result in property

damage and/or personal injury.

• The electrical rating for this thermostat is 1.5 Amps per terminal, with a

maximum total load of 2.0A for all terminals combined.

• The thermostat contains parts that may wear out through use and are

susceptible to failure if over-loaded or used in a manner other than as

indicated in the documentation.

• Check unoccupied residences regularly to ensure that all systems are

operating properly.

• Check any heating/air-conditioning system including this product before

operation and at regular intervals.

• Electrical interference, static electricity, failure or substandard performance of

batteries, wiring defects in the installation and/or characteristics of the

connected HVAC devices may prevent the system from regulating heating and

cooling as anticipated.

• The thermostat is a sensitive device and dropping the product can cause

damage to critical components. If the product is dropped or shaken violently

during transport or installation then it should be replaced immediately.

• Persons with physical or mental limitations may not be able to promptly

respond to a malfunction of the heating/air-conditioning system.

• All residents should be made aware of the potential in any system for

malfunctions that could cause continuous heating or cooling and should be

familiar with the operation and location of the heating/cooling appliance on/off

switch.

• Read the instruction manual completely before installing the thermostat. You

should consult a qualified HVAC technician or an electrician if you do not fully

understand the installation instructions.

P721

LCD Display Screen

Fan

Mode

Switch

SET, NEXT,

and HOLD

Buttons

Fan

Auto

Set

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)

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)

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.

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.

INSTALL THERMOSTAT BASE:

Set

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).

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.

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.

WIRING DIAGRAMS:

DIAGRAM

SYSTEM TYPE / DESCRIPTION

PAGE #

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

CONVENTIONAL:

HEATING AND COOLING .....................................14

TWO-TRANSFORMERS

5, 6, 7 WIRES

2 / 3 / 4 WIRES

CONVENTIONAL, NON HEAT PUMP

1-STAGE, HEAT ONLY

(INCLUDING MILLIVOLT)

OPTIONAL

SYSTEM COMMON

FAN

Factory

RH-RC

Jumper

Wire

24V HEAT

TRANSFORMER

Installed

HEATER

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL,

GRAY TERMINAL LETTERS ARE BRAND SPECIFIC

3 / 4 / 5 WIRES

CONVENTIONAL, NON HEAT PUMP

2-STAGE, HEAT ONLY

OPTIONAL

SYSTEM COMMON

FAN

Factory

RH-RC

Jumper

Wire

24V HEAT

TRANSFORMER

Installed

HEATER

(1ST STAGE)

2ND STAGE

HEAT

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL,

GRAY TERMINAL LETTERS ARE BRAND SPECIFIC

3 / 4 WIRES

CONVENTIONAL, NON HEAT PUMP

1-STAGE, COOL ONLY

OPTIONAL

SYSTEM COMMON

FAN

Factory

RH-RC

Jumper

Wire

Installed

24V COOL

TRANSFORMER

A/C

UNIT

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL,

GRAY TERMINAL LETTERS ARE BRAND SPECIFIC

4 / 5 / 6 WIRES

CONVENTIONAL, NON HEAT PUMP

1 OR 2-STAGE HEAT AND 1-STAGE COOL

OPTIONAL

SYSTEM COMMON

FAN

24V

Factory

RH-RC

Jumper

Wire

TRANSFORMER

Installed

HEATER

(1ST STAGE)

A/C

UNIT

2ND STAGE

HEAT

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL,

GRAY TERMINAL LETTERS ARE BRAND SPECIFIC

5 / 6 / 7 WIRES

CONVENTIONAL, NON HEAT PUMP

1 or 2-HEAT / 1-COOL, WITH TWO-TRANSFORMERS

OPTIONAL

SYSTEM COMMON

FAN

REMOVE

Factory

RH-RC

Jumper

Wire

24V HEAT

TRANSFORMER

24V COOL

TRANSFORMER

HEATER

(1ST STAGE)

A/C

UNIT

2ND STAGE

HEAT

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL,

GRAY TERMINAL LETTERS ARE BRAND SPECIFIC

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.

JP1

ELEC

GAS

(default)

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.

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.

[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.

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)

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.

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.

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.

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.

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

night at http://www.luxproproducts.com. Our website offers you troubleshooting

guides, answers to the most common technical questions, and also permits you

to email your questions to our technical support staff at your convenience.

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

“www.thermostat-recycle.org” website. On this website, there

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.