Lux Products Thermostat P721UTa User Manual

P721UTa

SMART TEMP^®UNIVERSAL

7-DAY PROGRAMMABLE TOUCHSCREEN THERMOSTAT

(FOR BOTH CONVENTIONAL AND HEAT PUMP SYSTEMS)

INSTALLATION AND OPERATING INSTRUCTIONS

52139

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

HARDWARE SETUP OPTIONS . . . . . . . . 18

COMPLETE THE INSTALL . . . . . . . . . . . 20

FRONT PANEL ITEMS . . . . . . . . . . . . . . 20

OPERATING INSTRUCTIONS . . . . . . . . . 21

TEMPERATURE PROGRAMS . . . . . . . . . 24

ADVANCED FEATURES . . . . . . . . . . . . . 25

BATTERY REPLACEMENT . . . . . . . . . . . 33

TECHNICAL ASSISTANCE . . . . . . . . . . . 34

LIMITED WARRANTY . . . . . . . . . . . . . . 34

MERCURY NOTICE . . . . . . . . . . . . . . . . 34

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

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P721UTa

Fan

Mode

Switch

Button

FAN

AUTO

SET

HEAT

OFF

Clock

COOL

System

Mode

Switch

Room Temperature

Set Temperature

SYSTEM COMPATIBILITY:

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

maximum total combined load of 3.0A for all terminals combined.

COMPATIBLE WITH:

• Most 24-volt heating and cooling systems

• 1 or 2 stage Heat / 1 stage Cool: Gas, Oil or Electric systems

• 1 or 2 stage Heat / 1 stage Cool: Heat Pump systems

• 3-wire hydronic (hot water) zone valves

• Gas Millivolt heaters

NOT COMPATIBLE WITH:

• 120/240 VAC line-voltage systems (without a transformer), ask your LUXPRO

dealer for thermostats to control these systems.

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FEATURES:

• 1 or 2-Heat / 1-Cool, 7-day programming

• Universal Compatibility for all system types

• Each day of the week can be programmed separately

• Easy to use, touchscreen menu operation

• User-selectable periods per day (2 or 4)

• User-selectable programmable or non-programmable operation

• LuxLight^®EL (Electro-Luminescent) lighted display

• Energy usage monitor

• Programmable air filter life timer

• Programmable keypad lockout for unauthorized users

• Manual temperature hold

• Adjustable vacation hold (1 to 30 days)

• Temporary temperature override

• Adjustable temperature differential / cycle-rate

• Adjustable 2nd heat stage Offset setting

• User temperature calibration

• Adjustable heat/cool set temperature limit stops

• Smart recovery

• Dual-powered (battery and/or 24-volt system powered)

• Battery-free memory storage

• F/C temperature display

• 12/24-hour clock 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)

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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.

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INSTALL THERMOSTAT BASE:

Mode

Switches

THERMOSTAT TOP VIEW

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 on the top of the housing,

in the directions shown in the diagram shown above.

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).

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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.

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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 present, then “C” is most

likely a System Common wire.

• For Heat Pump systems, you will use either the “O” terminal or the “B”

terminal on this thermostat, but not both. If your old thermostat has both an

“O” and a “B” wire present, then “B” is likely a System Common wire and may

be connected to the “C” terminal. Connecting a System Common wire to this

thermostat’s “B” terminal may damage the thermostat, and also your heating

and cooling system.

• Some Heat Pump systems have a wire for AUX electric heat (usually W2), and

also a separate wire for Emergency electric heat (usually E). This thermostat

uses the W2 terminal for both AUX and Emergency Heat. Tape off your “E”

wire, and confirm that all components function without it.

• 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.

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WIRING DIAGRAMS:

DIAGRAM

SYSTEM TYPE / DESCRIPTION

PAGE #

CONVENTIONAL:

HEAT PUMP:

HEATING ..........................................................10

1-STAGE OR 2-STAGE

2, 3, 4, 5 WIRES

HEATING ..........................................................11

3-WIRE ZONE VALVE

3, 4 WIRES

COOLING ..........................................................12

1-STAGE

3, 4 WIRES

HEATING AND COOLING .....................................13

1-STAGE HEAT

4, 5 WIRES

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

2-STAGE HEAT

5, 6 WIRES

HEATING AND COOLING .....................................15

TWO-TRANSFORMERS

5, 6 WIRES

HEATING AND COOLING .....................................16

SINGLE-STAGE ONLY

4, 5 WIRES

HEAT PUMP:

HEATING AND COOLING .....................................17

WITH AUX / EMERGENCY HEAT

5, 6 WIRES

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HARDWARE SETUP OPTIONS:

On the thermostat’s circuit board, there is a row of DIP switches, labeled #1

through #7. The position of these switches will change how the thermostat

operates, and also how information is conveyed to you on the LCD display

screen. If you make any changes to these options, the changes are not

recognized unless you either: change the position

of the HEAT/OFF/COOL mode switch, or press the

“HW RST” (Hardware Reset) button on the circuit

board. The use of this button is further described

in the “ADVANCED FEATURES” section of this

manual.

These option switches are very small and should

be moved carefully using objects such as: eyeglass

screwdriver, fine-point pen, toothpick, or similar.

The listing below describes the available choices

for each option switch:

SWITCH #1 (SYSTEM): [OFF/RIGHT = FURN, default] This setting is used for the

majority of all heating systems that are not heat pumps. Examples for this

setting would be: natural gas furnace, hot water baseboard heat, and oil heat.

[ON/LEFT = HP] Use this setting if you have a heat pump unit (which looks just

like an outside air conditioning unit, but is used for both cooing and heating).

SWITCH #2 (TYPE): [OFF/RIGHT = PROG, default] The thermostat controls the

room temperature by following temperature program periods that you set up

based upon your daily routine. [ON/LEFT = MAN] The thermostat operates

manually just like a mechanical or non-programmable model. This method of

operation is very basic and only shows the room temperature and set

temperature; there are no temperature programs, days of the week, or clock

times.

SWITCH #3 (PERIODS): [OFF/RIGHT = 4, default] The thermostat uses four

temperature program periods in both heating and cooling (MORN, DAY, EVE, and

NITE). Each period has a separate start time and a set temperature. [ON/LEFT =

2] The thermostat operates in the same manner as above, however there are only

two temperature program periods for heating and cooling (DAY and NITE). This

may be more convenient if you are typically home during the day, and only need

the set temperature to be different while you are sleeping.

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SWITCH #4 (SCALE): [OFF/RIGHT = F, default] All temperature values are

displayed using the Fahrenheit scale. [ON/LEFT = C] This setting displays all

temperature values using the Celsius scale.

SWITCH #5 (TIME): [OFF/RIGHT = 12 HR, default] This setting displays the clock

times and temperature program period start time values on the screen using US

standard AM and PM values. [ON/LEFT = 24 HR] This setting displays the clock

and temperature program period start time values on the screen using the 24 HR

military-time format (17:30 hours, 22:00 hours, without using AM/PM).

SWITCH #6 (DELAY): [OFF/RIGHT = 5 MIN, default] This sets the minimum length

of time that Heat or Cool must remain either On or Off, before it will

automatically switch to the alternate On or Off state. This internal delay prevents

rapid cycling of your system and provides equipment protection particularly for

cooling units. The 5-minute setting is fine for most applications. [ON/LEFT = 2

MIN] If you feel that your system may need to cycle more frequently than the

thermostat is allowing, then you may use the 2-minute setting.

SWITCH #7 (RECOVERY): [OFF/RIGHT = DISABLE, default] The Early Recovery

feature affects how the thermostat transitions from an energy saving setback

(DAY and NITE) program period, to a comfort (MORN and EVE) program period

temperature, when it is following the daily temperature programs. When this is

disabled, the thermostat makes a set temperature change at the beginning of an

upcoming period's start time. [ON/LEFT = ENABLE] The Early Recovery feature

will calculate the capability of your system and turn on the heating or cooling

early so that the temperature in your home reaches the desired set point as close

as possible to the start of the period. During the time that the thermostat is

performing a recovery, the words “IN RECOVERY” will be shown, alternating at

the top of the display with the current system mode.

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GAS / ELEC SLIDE SWITCH (FAN OPERATION):

This switch is a physical component by itself on the

circuit board, and is much larger than the DIP

switches listed above.

BATTERY

[UP = GAS, default] This setting lets the heating

system control the blower fan automatically by

itself. Systems that would typically use the “GAS”

setting would be: natural gas, propane, or oil

furnaces. This setting has no effect upon Cool

mode operation.

GAS

ELEC

[DOWN = ELEC/HP] This setting runs the system’s blower fan when heat is called

for, and is required for heating systems that do not control their own fan while

the thermostat is in HEAT mode. Heat pump systems, and units with an electric

heating element typically require this setting.

COMPLETE THE INSTALL:

Once the hardware options are set, install two new Energizer^®or DURACELL^®

"AA" size alkaline batteries. Ensure that the batteries are installed in the proper

direction as per the markings shown in the battery tray. If the batteries were

already installed before changing the hardware setup options, change the

position of the HEAT/OFF/COOL System Mode switch to accept the new hardware

option switch settings.

FRONT PANEL ITEMS:

These two items below are both located on the right side of the thermostat

housing.

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.

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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).

OPERATING INSTRUCTIONS:

TOUCHSCREEN MENU CONTENTS:

• SET DAY/TIME

• SET/REVIEW “HEAT/COOL” PROGRAMS (not present in OFF mode)

• SET/REVIEW FILTER USAGE

• REVIEW “HEAT/COOL” ENERGY USAGE (not present in OFF mode)

• SET/REVIEW SWING VALUE

• SET KEYBOARD LOCK CODE (not present in OFF mode)

• SET “HEAT/COOL” TEMPERATURE STOP (not present in OFF mode)

• TEMPERATURE SETBACK (not present in OFF mode)

SET DAY AND TIME: Press the MENU button. The first menu item shown is “SET

DAY/TIME”, press the OK button. With the day flashing, press UP or DOWN to set

the day of the week. Press NEXT and the clock time will start flashing. Use UP

or DOWN to set the time, making sure the AM/PM indication is correct. Holding

the UP or DOWN buttons will make the clock digits scroll rapidly. Press the EXIT

button to return to the Normal Run screen.

HEATING AND COOLING: Basic operation of your heating or cooling system can

be obtained by choosing either HEAT or COOL on the System Mode switch. Touch

the Set Temperature digits on the screen and they will begin to flash. While they

are flashing, the UP and DOWN buttons will be shown also, which you can use to

adjust the current Set Temperature. When the thermostat is first powered up, it

will follow a default temperature routine that is preset from the factory (shown

below), until the clock has been set.

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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)

There are on-screen indicators to show you when the thermostat is calling for

heating or cooling to occur. In the Heat mode switch position, a flame will be

present on the screen. A steady flame means that the thermostat is not calling

for your heating system to run, while a flashing flame means that your heating

system should be currently running. In the Cool mode switch position, a

snowflake will be present on the screen. A steady snowflake means that the

thermostat is not calling for your cooling system to run, while a flashing

snowflake means that your cooling system should be currently running.

EMERGENCY HEAT: (Heat Pump Configuration Only).

While in normal Heat mode, one single press of the

EMER button will activate Emergency Heat mode.

While in Emergency Heat, the top of the screen will

change from “Heat Mode” to show “Emer Heat”, and

EMER. = ON

an additional bold frame will appear around the EMER

button. A single press of the EMER button again will

end Emergency Heat, and return back to normal Heat

mode. If a power loss occurs while in Emergency Heat

mode, the thermostat will continue to remain in

EMER. = OFF

Emergency Heat mode even after the power comes

back on.

Emergency Heat mode will prevent the first stage of your heat pump system from

turning on, and use only the “W2” heat terminal (Auxiliary Heat) as the primary

heating source. This will not only prevent the heat pump from wasting energy if

outdoor temperatures are too low to support efficient operation, but it could also

prevent damage to the heat pump if outside temperatures are below the

manufacturer’s recommendations. As every heat pump has different operating

characteristics, you should refer to your heat pump literature to determine when

to disable the heat pump and run in Emergency Heat mode.

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LCD DISPLAY BACKLIGHT: The display screen is lighted to assist viewing at

nighttime, or in locations with low light levels. A press of any area on the touch

panel will light the display for approximately 10 seconds. Any screen 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 the Normal Run screen, the set temperature

can be temporarily changed by pressing the Set Temperature digits, then

pressing the UP or DOWN buttons. 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 words “HEAT OVRRIDE” or “COOL OVRRIDE” will be shown in the

display screen. An Override may be cancelled by either pressing the HOLD

button two times, or by moving the mode switch to OFF, pausing briefly, then

switching back to the HEAT or COOL position. When in the Normal Run mode, the

display should say either “HEAT MODE” or “COOL MODE”.

MINIMUM RUN TIME: The thermostat has a default internal time delay of 5

minutes between load-on and load-off activations to prevent heating or cooling

system damage, which can occur from very frequent cycling. If heating or

cooling does not turn on right away with a manual change in set temperature,

please wait at least 5 minutes and the system should resume normal operation.

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

HOLD = ON

thermostat has adequate power. To enter Hold mode:

press the HOLD button one time and the words “HEAT

HOLD” or “COOL HOLD” will appear in the display, and

an additional bold frame will appear around the HOLD

button. To cancel a Hold, press the HOLD button one

HOLD = OFF

more time. If a mains 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.

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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

(HARDWARE SETUP OPTIONS), the thermostat will only use the DAY and NITE

periods. The MORN and EVE periods will not be visible on the screen.

The following examples are shown using Heat mode. Programming in Cool mode

is done in the same exact manner with the System Mode switch in the Cool

position.

SET TEMPERATURE PROGRAMS: Press the MENU button, then press the SCROLL

button until “SET/REVIEW HEAT PROGMS” is shown, then press the OK button to

enter the programming screen. Use the UP and DOWN buttons to adjust the start

time for the MORN period, then press the NEXT button to advance. Use the UP

and 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 the thermostat will advance to Tuesday, with the

MORN period start time flashing. Perform the same steps that you used for

setting the Monday periods, pressing the NEXT button to advance through each

flashing value.

PROGRAM COPY FEATURE: The Copy feature allows you to copy all of the

program information from any one single day, to any other day of the week. To

copy heat programs, the thermostat must be in Heat mode, and to copy cool

programs, the thermostat must be in Cool mode. Emergency Heat (heat pump

configurations only) uses the Heat temperature program. While in a temperature

programming screen, press the “COPY” button one time. The words “COPY

PROGRAM” will flash briefly at the top of the screen, followed by “FROM” and

“TO”. Under the word “FROM” will be a flashing day of the week. Using the UP

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and DOWN buttons, select the day that you want to copy from. Press the NEXT

button one time. Your copy from day should now be on steady with the day under

the word “TO” flashing. Use the UP and DOWN buttons to select the day that you

would like to copy to. A single short press of the COPY button will perform the

copy, and the day flashing under the word “TO” will have advanced to the next

following day. You may continue to perform short single presses of the COPY

button to keep copying from the original source day to the remaining days, one

after the other. Specific days may be skipped by pressing the UP button, to

advance past them while they are flashing under the word “TO”. Press the EXIT

button to return to the Normal Run screen.

ADVANCED FEATURES:

TEMPERATURE SWING SETTING, OFFSET SETTING, AND TEMPERATURE

CALIBRATION:

NOTE: The Swing setting, Offset setting, and Calibration settings need to be

performed in a timely manner, as the thermostat will timeout and automatically

exit these adjustment screens after approximately 10 seconds without a button

press.

SWING DESCRIPTION: A thermostat works by turning your heating or cooling

system on and off whenever the room temperature varies from the desired set-

point temperature. The amount of this variation is called the Swing. Generally

your system should cycle on about 3 to 6 times per hour. A smaller swing

number makes the system cycle more frequently, so the room temperature is

more precise and constant. A larger swing number will make the system remain

on for a longer duration each time and decreases the number of cycles per hour.

There is only one Swing setting, and this determines the cut-in and cut-out

points for both the first and second stages (if present), in both Heat mode and

Cool mode. The swing setting range is between #1 and #9 (0.25°F to 2.25°F, in

0.25°F degree increments (or 0.14°C to 1.25°C, in 0.14°C degree increments for

Celsius)). Swing number 1 is the default setting.

OFFSET DESCRIPTION: This setting is shown as a number of degrees, and is

similar in nature to the Swing however this only effects the operation of the

second (auxiliary) heating stage, if present. The setting range for Offset is from

0°F to 9°F degrees (0°C to 5°C degrees). When set to 0 degrees, the second

heating stage is completely disabled while in regular Heat mode (Emergency Heat

mode will still function for heat pump configurations). The Offset value will

determine the number of degrees from the set point that will be required for the

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second heating stage to turn on. This setting can be used to conserve energy in

situations where the second heating stage is more costly to operate when

compared to the first stage.

Cut-In / Cut-Out

(1^stStage)

70˚F Set

Temperature

Swing

Setting=

#2 (+/- 0.5˚F)

Offset **

Setting=

4˚F degrees

(2^ndStage) **

Cut-In / Cut-Out

DEGREES (F)

** = Only applies if a second

heat stage is present

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TEMPERATURE CALIBRATION DESCRIPTION: The internal temperature sensor in

this thermostat is accurately calibrated at the factory, and in most cases,

alterations to this setting should not be needed. The Temperature Calibration

feature allows you to manually offset the measured temperature by as much as

plus or minus 5°F (3°C) degrees from its original value. This feature can be

useful to match or synchronize this thermostat to another one or more, if multiple

thermostats are used in the same home.

TO CHANGE THE SWING, OFFSET, AND CALIBRATION: Press the MENU button, then

press the SCROLL button until “SET/REVIEW SWING VALUE” is shown on the

screen, then press the OK button. The words “ADJUST VALUE SWING” will appear

at the top of the screen, along with a single flashing digit. Use the UP and DOWN

buttons to change the number value from #1 to #9. Press the NEXT button to

accept the Swing setting and proceed to the Offset setting.

After the Swing value has been accepted, the words “ADJUST VALUE OFFSET” will

appear at the top of the screen, along with a single flashing temperature digit.

Use the UP and DOWN buttons to change the number value between 0°F and 9°F

degrees (0°C to 5°C). The 0° (zero) degree setting will disable the 2nd heating

stage while in regular Heat mode. Press the NEXT button to accept the Offset

setting and proceed to the Calibration setting.

After the Offset value has been accepted, the words “ADJUST VALUE CAL” will

appear at the top of the screen, along with a single flashing temperature digit.

Use the UP and DOWN buttons to change the number value between –5°F and

+5°F (–3°C and +3°C). The 0° (zero) degree setting is the default value, and will

not alter the displayed room temperature from the measured reading. Press the

NEXT button to accept the Calibration setting and return back to the Swing

setting. You can keep pressing the NEXT button to review your three setting

values, or press the EXIT button to return to the Normal Run screen.

SETBACK FEATURE: The setback feature is similar to both a Temperature

Override and a Temperature Hold, in that both are used to maintain a fixed set

temperature instead of following a programmed daily routine. A Setback can be

considered the same as a Temperature Override, which can last for a longer

duration that you can adjust from 1-12 hours, or 1-30 days. By default, when a

Setback is activated in Heat mode, the set temperature used will be 5F (3C)

degrees lower than the current set temp. For Cool mode, the set temperature

used will be 5F (3C) degrees higher than the current set temp.

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NOTE: The Setback settings need to be performed in a timely manner, as the

thermostat will timeout and automatically exit these adjustment screens after

approximately 10 seconds without a button press.

TO START A SETBACK: Press the MENU button, then press the SCROLL button

until “TEMPERATURE SETBACK” is shown, then press the OK button. The words

“OVERRIDE LEFT” will appear at the top of the screen, along with two digits and

the word “HRS”. Use the UP and DOWN buttons to set the duration for how long

you would like to maintain a fixed set temperature (from 1 to 12 hours). If you

would like to set the duration for longer than 12 hours, keep pressing the UP

button. The display will change from “HRS” left to “DAYS” left, with an available

duration of 1 to 30 days. Once you have selected your desired Setback duration,

press the NEXT button to advance. The display will change from “OVERRIDE

LEFT” left to “OVERRIDE TEMPERATURE”. Use the UP and DOWN buttons to select

your desired Set Temperature that will be used during the Setback duration.

Once complete, press the NEXT button to accept the setting and return to the

Normal Run screen.

TO CANCEL A SETBACK: A Setback can be cancelled by either pressing the HOLD

button two times, or by moving the mode switch to OFF, pausing briefly, then

switching back to the HEAT or COOL position. When in the Normal Run mode, the

display should say either “HEAT MODE” or “COOL MODE”.

TEMPERATURE LIMIT STOPS: There are two independent set temperature limit

stops: a maximum heat set temperature, and a minimum cool set temperature.

These stops do not prevent a user from performing normal actions like

Temperature Override or Hold. The Heat Limit Stop prevents the set temperature

from being adjusted higher than the heat limit setting. The Cool Limit Stop

prevents the set temperature from being adjusted lower than the cool limit

setting. Each of these temperature stops is user adjustable in one-degree

increments, and these settings are protected by a selectable 2-digit code to

prevent unauthorized tampering. By default, this 2-digit code is “00”, and the

temperature stops can be used as-is with this code.

NOTE: The Temperature Limit Stop settings need to be performed in a timely

manner, as the thermostat will timeout and automatically exit the setting screens

after approximately 10 seconds without a button press.

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The following examples are shown for setting the maximum set temperature for

Heat mode. Setting the Temperature Limit Stop for Cool mode is done in the

same exact manner with the System Mode switch in the Cool position, and

instead you will be setting the minimum set temperature for cooling. Once a

Temp Stop Lock Code has been selected, this same code is used for both Heat

and Cool temp stops.

TO SET THE TEMPERATURE LIMIT STOP: Press the MENU button, then press the

SCROLL button until “SET HEAT TEMP STOP” is shown, then press the OK button.

The words “ENTER CODE” and “TEMP STOP” will appear at the top of the screen,

along with two digits at the left. Use the UP and DOWN buttons to enter the

current Temp Stop Lock Code (“00” by default). Press the NEXT button to

advance. If the code entered does not match the current Temp Stop Lock Code,

the words “WRONG CODE” will flash briefly, and you may try to enter the correct

code again. If the current code has been entered correctly, you will have the

ability to change the desired Temp Stop Lock Code to something else. The words

“SET CODE” and “TEMP STOP” will appear at the top of the screen, along with

two digits at the left. Use the UP and DOWN buttons to enter the desired Temp

Stop Lock Code to be used, and press the NEXT button to advance.

The words “SET HEAT RANGE STOP” will appear at the top of the screen, along

with two large temperature digits in the middle. Use the UP and DOWN buttons

to adjust the desired maximum heat set temperature value (or minimum set

temperature value for Cool mode). Once complete, press the NEXT button to

accept the setting and return to the Normal Run screen.

IF YOU FORGET YOUR TEMPERATURE STOP LOCK CODE: The code can be reset to

the factory default “00” by performing the following steps. Start with the System

Mode switch in either the Heat or Cool positions, then change to the OFF

position. Press and hold the HOLD, NEXT, and OK buttons all at the same time for

at least 10 seconds. The screen will briefly show “00” on the screen to confirm

that the Temp Stop Lock Code has been successfully reset to the factory default

of “00”.

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KEYPAD LOCKOUT: You can lock the touch-panel buttons to prevent unauthorized

tampering of your thermostat settings.

NOTE: These keypad lock instructions need to be performed in a timely manner,

as the thermostat will timeout and automatically exit the keypad lock screens

and return to the Normal Run screen after approximately 10 seconds without a

button press.

TO LOCK THE KEYPAD: The System Mode switch must be in either the Heat or

Cool position. Press the MENU button, then press the SCROLL button until “SET

KEYBOARD LOCK CODE” is shown, then press the OK button. The words “ENTER

CODE” will appear at the top of the screen, along with four digits at the left.

Select a 4-digit code that you would like to use for locking the thermostat. Press

the UP and DOWN buttons to change each digit individually, using the NEXT

button to cycle through which digit is selected. Pressing the OK button will lock

the thermostat touch panel using the 4-digit code that is shown on the screen,

and return to the Normal Run screen with a padlock shown to confirm that the

thermostat is now locked.

TO UNLOCK THE KEYPAD: Press the padlock icon, and the words “UNLOCK

KEYBOARD?” will appear at the top of the screen. Press OK to proceed with

entering the unlock code (or press the EXIT button to cancel). The words “ENTER

CODE” will appear at the top of the screen, along with four digits at the left. You

will need to enter the proper unlock code that was used for initially locking the

thermostat. Press the UP and DOWN buttons to change each digit individually,

using the NEXT button to cycle through which digit is selected. With the correct

lock code entered on the screen, pressing the OK button will unlock the

thermostat. If the code entered does not match the current keypad lock code,

the words “WRONG CODE” will flash briefly, and you may try to enter the correct

code again.

IF YOU FORGET YOUR KEYPAD LOCK CODE: The following steps can regain access

to the thermostat. Remove the front portion of the thermostat from the wall, and

briefly press the “HW RST” HARDWARE RESET button on the thermostat circuit

board. More information about the use of this button is described later in this

section.

AIR FILTER MONITOR: In most systems that use a blower fan and air ducts, there

is an air filter that is either replaceable or requires cleaning. The filter is usually

located in the air handler, where the blower fan is. This thermostat feature

assists you with keeping track of proper maintenance and/or periodic

replacement intervals for your system’s filter.

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The Air Filter Monitor counts the duration of filter usage that has occurred, since

the last time the Filter Monitor has been reset. This feature is for information

purposes only, and does not affect the operation of your heating or cooling

equipment, or the thermostat. When the filter usage duration has expired, the

words “CHANGE FILTER” will appear at the top of the display screen, alternating

with the current DAY and PERIOD.

TO ACCESS FILTER INFORMATION: Press the MENU button, then press the SCROLL

button until “SET/REVIEW FILTER USAGE” is shown, then press the OK button.

The words “FILTER USAGE COUNT” will appear at the top of the screen, along

with the total number of hours that have elapsed since the last time the filter

counter was reset. Press the NEXT button to advance.

The words “FILTER USAGE RESET?” will appear at the top of the screen. To reset

the filter counter to the start of the current limit setting press the OK button.

Press the NEXT button to advance.

The words “ADJUST VALUE FILTER LIMIT” will appear at the top of the screen.

This shows the current setting value for how many filter run time hours can

elapse before showing “CHANGE FILTER” in the Normal Run screen. The

adjustment range for this setting is from 0 hours to 2000 hours, with 720 hours

as the default. A filter limit setting of 0 (zero) hours will disable the filter

monitor feature. Once complete, press the EXIT button to save all settings and

return to the Normal Run screen.

NOTE: Air filters are sold based upon how many days they are rated for. One day

of filter run time is actually considered only 8 hours (not a full 24, since your

heating and/or cooling system only runs for approximatly one third of the time).

For a “90-day” filter, use a limit setting of 720 hours should be used, and for a

“30-day” filter, a limit setting of 240 should be used.

ENERGY USAGE MONITOR: Your thermostat contains a timer, which records the

amount of “on-time” for your heating and cooling systems. There are three

records that can be displayed for both Heat and Cool modes:

1) The amount of system run time so far for today.

2) The amount of system run time for yesterday.

3) The total cumulative system run time since the timer was reset.

The Heat Energy Usage information is shown while the System Mode switch is in

the Heat position, and the Cool Energy Usage information is shown while the

System Mode switch is in the Cool position. The following examples are shown

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for viewing the Energy Usage while in Heat mode. Viewing the Cool mode

information is done in the same exact manner in Cool mode.

TO VIEW THE ENERGY USAGE TIMERS: Press the MENU button, then press the

SCROLL button until “REVIEW HEAT ENERGY USAGE” is shown, then press the OK

button. The words “TODAYS ENERGY USAGE” will appear at the top of the screen,

along with the amount of heating system runtime (displayed as “HH:MM”, for

hours and minutes). Use the NEXT button to cycle between Today’s Usage,

Yesterday’s Usage, and the Total Cumulative Usage for heat mode. NOTE: For the

Total Cumulative Usage, the timer will record up to a maximum of 99 hours and

59 minutes, then the display will change to “HHHH” for hours only, without the

colon in the center.

Pressing NEXT after the Total Cumulative Usage will show the words “TOTAL

USAGE RESET?” at the top of the screen. Pressing OK at this screen will clear

the Heat Energy Usage timer, and start back at 0 (zero). Press the EXIT button to

return to the Normal Run screen.

HARDWARE RESET: The Hardware Reset button (labeled “HW

RST”) is a small round push button that is located towards the

RST

right side of the circuit board, just below the battery holder.

Pressing this button will cause the LCD display screen to

become fully populated, the heating and cooling load relays to

cycle off, read the position of the Hardware Setup Option

switches, and will perform an internal system check of the thermostat

components. If your thermostat appears to be acting in an erratic manner,

pressing the Hardware Reset button may remedy this behavior. The temperature

programs are not erased when a hardware reset is performed, however the clock

will have to be changed to match the current day and time.

SOFTWARE RESET: The Software Reset button (labeled “SW

RST”) is a small round push button that is located towards the

RST

right side of the circuit board, just below the battery holder. A

Software Reset is used to erase all heating and cooling

temperature programs, and any user-adjustable software

values such as: Swing, Offset, and Calibration, to their original

factory default values. To perform a Software Reset, press and hold the Software

Reset button for at least 5 seconds. The LCD display screen will become fully

populated, then return to normal. The thermostat will still retain the current day

and time even after a Software Reset has been performed.

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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, start with the System Mode switch in either

the Heat or Cool positions, then change to the OFF position. Press and hold the

OK button for at least 5 second. The thermostat will give a single beep sound to

confirm that this feature has been activated. 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 the

“LO-BATTERY” icon appears at the bottom of the display screen). The batteries

are located on the back of the thermostat, at the top of the circuit board. The

front portion of the thermostat can be removed from the back half by pulling

straight outwards on the top and bottom of the thermostat housing, at the large

indentations that are present in the center of the top and bottom edges.

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.

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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 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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FAN

AUTO

SET

HEAT

OFF

COOL

Mt. Laurel, New Jersey 08054, USA

http://www.luxproproducts.com

856-234-8803

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