Lux Products P722U Thermostat User Manual

P722U

SMART TEMP^®UNIVERSAL

7-DAY PROGRAMMABLE THERMOSTAT

(FOR BOTH CONVENTIONAL AND HEAT PUMP SYSTEMS)

INSTALLATION AND OPERATING INSTRUCTIONS

52133

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.

SYSTEM COMPATIBILITY . . . . . . . . . 2

FEATURES . . . . . . . . . . . . . . . . . . . 3

TOOLS YOU MAY NEED . . . . . . . . . . . 3

MOUNTING LOCATION . . . . . . . . . . . 4

REMOVE OLD THERMOSTAT . . . . . . . 4

INSTALL THERMOSTAT BASE . . . . . . . 5

WIRING INFORMATION . . . . . . . . . . . 5

CAUTIONS AND WARNINGS . . . . . . . . 6

WIRING DIAGRAMS . . . . . . . . . . . . . 8

HARDWARE SETUP OPTIONS . . . . . . 17

COMPLETE THE INSTALL . . . . . . . . . 19

FRONT PANEL ITEMS . . . . . . . . . . . 19

OPERATING INSTRUCTIONS . . . . . . . 21

TEMPERATURE PROGRAMS . . . . . . . 23

ADVANCED FEATURES . . . . . . . . . . 24

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

TECHNICAL ASSISTANCE . . . . . . . . . 33

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

P722U

LCD Display Screen

Fan Mode

Switch

FAN

Set Slide

Switch

AUTO

SET

RUN

DAY/TIME

HEAT

FAN

TEMP PROG

SPEC PROG

FILT

/ ENRGY

TEMPERATURE

HEAT

5 36

SETBACK

HOLD

OFF

COPY/

EMER

COOL

System Mode

Switch

UP / DOWN Buttons

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 or 2 stage Cool: Gas, Oil or Electric systems

1 or 2 stage Heat / 1 or 2 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.

FEATURES:

•

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

Universal Compatibility for all system types

Each day of the week can be programmed separately

Exclusive LUX^®Speed Slide^TMfor easy programming

User-selectable periods per day (2 or 4)

User-selectable programmable or non-programmable operation

LuxLight^®EL (Electro-Luminescent) lighted display

Energy usage monitor

Special program feature

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)

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:

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. 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.

4. 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.

CAUTIONS AND WARNINGS:

•

The 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 LUX 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 3.0A 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.

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.

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.

WIRING DIAGRAMS:

DIAGRAM

SYSTEM TYPE / DESCRIPTION

PAGE #

CONVENTIONAL: HEATING .............................................8

1-STAGE OR 2-STAGE

2, 3, 4, 5 WIRES

CONVENTIONAL: HEATING .............................................9

3-WIRE ZONE VALVE

3, 4 WIRES

CONVENTIONAL: COOLING............................................10

1-STAGE OR 2-STAGE

3, 4, 5 WIRES

CONVENTIONAL: HEATING AND COOLING...........................11

1-STAGE

4, 5 WIRES

CONVENTIONAL: HEATING AND COOLING...........................12

1-STAGE OR 2-STAGE

4, 5, 6, 7 WIRES

CONVENTIONAL: HEATING AND COOLING...........................13

TWO-TRANSFORMERS

5, 6 WIRES

HEAT PUMP:

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

SINGLE-STAGE ONLY

4, 5 WIRES

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

WITH AUX / EMERGENCY HEAT

5, 6 WIRES

HARDWARE SETUP OPTIONS:

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

through #9. 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/DOWN = 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/UP = 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/DOWN = PROG, default] The thermostat controls

the room temperature by following temperature program periods that you set

up based upon your daily routine. [ON/UP = 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/DOWN = 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/UP = 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.

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

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

temperature values using the Celsius scale.

SWITCH #5 (TIME): [OFF/DOWN = 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/UP = 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/DOWN = 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/UP = 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/DOWN = 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/UP =

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 RECOV” will be shown at the top of the display screen, alternating

with the current DAY and PERIOD.

SWITCH #8 (BATTERY MONITOR): [OFF/DOWN = ON, default] This setting,

regularly monitors the battery level, and shows “LOW BAT” on the screen if

the batteries need to be replaced. Use this setting at all times when

batteries are present in the thermostat. [ON/UP = OFF] This setting only

applies if you are NOT physically using batteries in the thermostat, and are

powering the thermostat entirely from the system (“C” wire terminal).

SWITCH #9 (FAN): [OFF/DOWN = 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. [ON/UP =

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 items below are all located behind the door on the front of the

thermostat. To open the door, pull outwards using the small indentation in

the center of the top edge 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.

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).

MULTI-FUNCTION, SET SLIDE SWITCH: This switch provides an easy way to

quickly access the most commonly used thermostat settings. This switch

has 5 individual positions, and unless a specific setting is being adjusted,

this switch should always remain in the RUN position for the thermostat to

control the room temperature. The other Set Slide switch positions are

described in greater detail in the ADVANCED FEATURES section. NOTE: this

switch is only operable when the thermostat is in “Programmable” mode.

When the thermostat is used in “Manual” control mode, all 5 of the switch

positions will act like the RUN position, except the “FILT/ENRGY” position.

SETBACK BUTTON: This button activates and deactivates the SETBACK

feature, which overrides the set temperature for an adjustable duration. This

feature is described in greater detail in the ADVANCED FEATURES section.

UP / DOWN BUTTONS: The UP and DOWN buttons are used to adjust any

item that can be changed by the user. Examples are the set temperatures,

clock times, and days of the week. In many cases, an item may be flashing if

it can currently be adjusted.

HOLD BUTTON: This button activates and deactivates the manual

Temperature Hold feature, and is also used for activating and deactivating

the Special Program feature. These features are described in greater detail

in the OPERATING INSTRUCTIONS and ADVANCED FEATURES sections.

COPY / EMERG BUTTON: While setting temperature programs, this button

allows you to quickly copy settings from one day to another. When in

Normal Run mode, the usage of this button varies depending upon your

specific system configuration. For heat pump systems, pressing this button

enables your emergency heat function, which is described in greater detail in

the OPERATING INSTRUCTIONS section. For conventional systems, there is

no such thing as emergency heat, so this button will have no effect.

NEXT BUTTON: This button is mostly used while setting items such as

software options, and temperature program periods. When there are several

items on the screen that can be changed, usually one of them is flashing

indicating that it can be adjusted. Pressing the NEXT button will cycle

through which item is flashing.

OPERATING INSTRUCTIONS:

SET DAY AND TIME: Place the Set Slide Switch into the DAY/TIME position.

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. Return the Set Slide switch

to the RUN position when finished.

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

can be obtained with the Set Slide Switch in the RUN position and choosing

either HEAT or COOL on 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).

PERIOD

HEAT

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 85 °F (29 °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 82 °F (28 °C)

EMERGENCY HEAT: (Heat Pump Configuration Only). While in normal Heat

mode with the Set Slide switch in the RUN position, one single press of the

COPY/EMER button will activate Emergency Heat mode. A single press again

will end Emergency Heat mode, and return back to normal Heat mode. While

in Emergency Heat mode, the word “EMER” will also be shown in the middle

portion of the display screen. If a power loss occurs while in Emergency

Heat mode, the thermostat will continue to remain in 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.

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.

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 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 (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.

SET TEMPERATURE PROGRAMS: Move the Set Slide switch to the TEMP

PROG position. Programming will start with Monday. 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 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. Return the Set Slide switch to the RUN position

when you are finished.

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. With the Set

Slide switch in the TEMP PROG position, press the COPY/EMER button one

time. The words “COPY PROG” will briefly appear on the screen and flash

once, followed by “FRM” and “TO”. Next to FRM, a day of the week will be

flashing. Using the UP/DOWN buttons, select the day that you want to copy

from. Press the NEXT button one time. Your “copy from” day should be on

steady with the “copy to” day 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/EMER button will perform the Copy, and the flashing “copy to” day will

have advanced to the next following day. You may continue to perform short

single presses of the COPY/EMER button to proceed with copying to the

remaining days, one after the other (specific days may be skipped by

pressing the UP button to advance past them when they are flashing in the

“copy to” location). To exit the Copy feature, and return to the regular

temperature program screen, press and hold the NEXT button for more than

2 seconds. Return the Set Slide Switch to the RUN position when you are

finished.

ADVANCED FEATURES:

TEMPERATURE SWING AND OFFSET SETTING: 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.

NOTE: The Swing and Offset 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 CHANGE THE SWING SETTING: Ensure that the System Mode switch is in

the OFF position and the Set Slide switch is in the RUN position. Press and

hold the HOLD button for at least 5 seconds. The words “SET” and “SWING”

will appear in the upper right corner of the screen, along with a single

flashing digit. Use the UP/DOWN buttons to change the number value

between 1 and 9 (0.25F to 2.25F, in 0.25F degree increments). Number 1 is

the default setting. Press the NEXT button to accept the swing setting and

proceed to the OFFSET setting.

TO CHANGE THE OFFSET: After the Swing value has been accepted, the

words “SET” and “OFFSET” will be shown on the screen, along with a

flashing digit. 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 to

9 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). 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. 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

TEMPERATURE CALIBRATION: 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.

NOTE: The Temperature Calibration setting need to be performed in a timely

manner, as the thermostat will timeout and automatically exit the adjustment

screen after approximately 10 seconds without a button press.

TO CHANGE THE TEMPERATURE CALIBRATION: Ensure that the System Mode

switch is in the OFF position and the Set Slide switch is in the RUN position.

Press and hold both the UP and DOWN buttons together for at least 5

seconds. The words “SET” and “CAL” will appear in the upper right corner

of the screen, along with a single flashing temperature digit. Use the

UP/DOWN buttons to change the number of degrees of adjustment. 0°

degrees is the default value, and means no correction is being applied.

Press the NEXT button to accept the setting.

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.

TO START A SETBACK: Ensure that the System Mode switch is in either the

Heat or Cool position, and that the Set Slider is in the RUN position. Press

and hold the SETBACK button for at least 2 seconds. The screen will change

and show the words “HOURS LEFT” and “OVERRIDE”, along with two digits.

Use the UP/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 “HOURS LEFT” to “DAYS LEFT”, with an available

duration of 1 to 30 days. Once your desired Setback duration is shown on

the screen, you can either wait for the screen to advance forward on its own,

or press the NEXT button (behind the door) one time to jump ahead rapidly.

Now use the UP/DOWN buttons to select your desired set temperature that

will be used for the Setback duration. Just like the previous step, you can

either wait for the screen to advance on its own, or press the NEXT button to

advance and return to the Normal Run screen.

TO CANCEL A SETBACK: While in the Normal Run screen, press and hold the

SETBACK button for at least 2 seconds. The word “OVERRIDE” will

disappear from the screen and the Setback will be cancelled. Moving the

System Mode switch or Set Slide switch, will also cancel a Setback.

SPECIAL PROGRAM FEATURE: The Special Program operates in the same

manner as the normal heating and cooling programs do, however the Special

Program activation is temporary, for a selected number of days (1-30). The

Special Program period times and temperatures can all be set to different

values to accommodate a wide variety of usage circumstances that may

occur, such as: being home for a couple days instead of at work, or a

vacation cut short. This feature eliminates the need to temporarily alter the

normal temperature program settings that continue to be used most of the

time. The heat Special Program is set in HEAT mode, and the cool Special

Program is set in COOL mode. The “number of days remaining” counter

decrements by one day, every 12:00 AM (Midnight).

NOTE: Just like the regular temperature programs, The Special Program has

4 separate periods for both Heat and Cool mode (MORN, DAY, EVE, and

NITE). If the thermostat is configured to use only 2 periods per day instead

of 4 (HARDWARE SETUP OPTIONS), the Special Program will only use the

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

screen.

TO SET THE SPECIAL PROGRAM VALUES: Move the Set Slide switch to the

SPEC PROG position. The screen will display “S-PROG”. 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.

Return the Set Slide switch to the RUN position when you are finished.

NOTE: When activating the Special Program feature, button presses need to

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

automatically exit the setting screen after approximately 10 seconds without

a button press.

TO ACTIVATE THE SPECIAL PROGRAM: Press and hold the HOLD button for

at least 5 seconds. The words “S-PROG” and “DAYS LEFT” will appear on

the screen, along with a two digits. Use the UP/DOWN buttons to change the

numbers for the desired number of days that you would like the Special

Program to be used. Press the NEXT button to accept the setting and exit.

While the Special Program is in effect, the clock time will alternate with the

words “SPECIAL DAYS” and a two-digit value to indicate the amount of days

remaining.

TO CANCEL THE SPECIAL PROGRAM: Press and hold the HOLD button for at

least 5 seconds. The “SPECIAL DAYS” will stop alternating with the clock

time, and the thermostat will now be in Normal Run 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.

TO SET THE HEAT LIMIT STOP: Place the System Mode switch in the OFF

position, and the Set Slide switch in the RUN position. Press and hold the

UP button while sliding the System Mode switch from OFF to HEAT. The

words “CODE” and “T-STOP” will appear at the top of the screen, along with

two digits. Use the UP/DOWN buttons to select the proper code to access the

heat limit setting. Press the NEXT button to accept the setting. If the code

you tried was not correct, the thermostat will exit and return to the Normal

Run screen with no changes made. If the entered code is correct, the screen

will add the word “SET” and display the current heat set temperature limit.

Use the UP/DOWN buttons to adjust the maximum heat set temperature

value. Press the NEXT button to accept the setting and return to the Normal

Run screen in heat mode.

TO SET THE COOL LIMIT STOP: Place the System Mode switch in the OFF

position, and the Set Slide switch in the RUN position. Press and hold the

DOWN button while sliding the System Mode switch from OFF to COOL. The

words “CODE” and “T-STOP” will appear at the top of the screen, along with

two digits. Use the UP/DOWN buttons to select the proper code to access the

cool limit setting. Press the NEXT button to accept the setting. If the code

you tried was not correct, the thermostat will exit and return to the Normal

Run screen with no changes made. If the entered code is correct, the screen

will add the word “SET” and display the current cool set temperature limit.

Use the UP/DOWN buttons to adjust the minimum cool set temperature

value. Press the NEXT button to accept the setting and return to the Normal

Run screen in cool mode.

TO CHANGE THE TEMPERATURE STOP LOCK CODE: Place the System Mode

switch in the OFF position, and the Set Slide switch in the RUN position.

Press and hold the NEXT button for at least 5 seconds. The words “CODE”

and “T-STOP” will appear at the top of the screen, along with two digits. Use

the UP/DOWN buttons to choose a new 2-digit code between “00” and “99”.

Press the NEXT button to accept the setting and return to the Normal Run

screen in Off mode.

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

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

Mode switch in the OFF position, and the Set Slide switch in the RUN

position. Press and hold the NEXT and HOLD buttons together for at least

10 seconds. The words “CODE” and “T-STOP” will appear at the top of the

screen, along with the code now set to the factory default of “00”.

KEYPAD LOCKOUT: You can lock the front 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: Start with the System Mode switch in either the HEAT

or COOL positions, and the Set Slide switch in the RUN position. Press and

hold the NEXT button for 5 seconds, and the words “LOCK CODE” then “SET

CODE” will appear at the top of the screen. Select a 4-digit code that you

would like to use for locking the thermostat. Press the UP/DOWN buttons to

change each flashing digit, using the NEXT button to cycle through which

digit is flashing. Press and hold the NEXT button for at least 5 seconds.

The thermostat will return to the Normal Run screen, with a padlock shown

to confirm that the thermostat is now locked.

TO UNLOCK THE KEYPAD: Press and hold the NEXT button for 5 seconds,

and the words “ENTER CODE” will appear at the top of the screen. Enter the

proper unlock code that was used for initially locking the thermostat. Press

the UP/DOWN buttons to change each flashing digit, using the NEXT button

to cycle through which digit is flashing. Press and hold the NEXT button for

at least 5 seconds. The thermostat will return to the Normal Run screen

without the padlock, and the thermostat is now unlocked.

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

access to the thermostat. Place the Set Slide switch in the RUN position.

On the back of the thermostat’s circuit board, press and hold the “HW RST”

(Hardware Reset) button for 2 seconds and release. The thermostat will

perform a reset and should now be unlocked. If the thermostat is still locked

with the padlock present, perform the “To Unlock The Keypad” shown above

using “0000” as the code.

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.

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 SET THE AIR FILTER DURATION: Move the Set Slide switch to the

“FILT/ENRGY” position. The words “FILTER LEFT” will be shown at the top

of the display screen. Press either of the UP/DOWN buttons to select the

desired filter duration (in days) from the following choices: OFF, 30, 60, 90,

120, 180, or 365. If the filter duration value is set to “OFF”, then the Air

Filter Monitor will be completely disabled.

TO RESET THE FILTER USAGE COUNTER: Move the Set Slide switch to the

“FILT/ENRGY” position. The words “FILTER LEFT” will be shown at the top

of the screen. Press both the UP and DOWN buttons together, and the usage

counter will return to the beginning of the value that it originally started

counting from. Refer to the previous paragraph, should you wish to change

the starting value for the filter monitor. Return the Set Slide switch to the

RUN position when you are finished.

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.

TO VIEW THE HEAT USAGE TIMERS: Place the System Mode switch in the

OFF position, and the Set Slide switch in the FILT/ENRGY position. Press

and hold the NEXT button while sliding the System Mode switch from OFF to

HEAT. The words “TODAY USAGE” will appear at the top of the screen, along

with the word “HEAT” and the amount of heating system runtime (displayed

as “HH:MM”, for hours and minutes). Use the UP/DOWN buttons to cycle

between Today’s Usage, Yesterday’s Usage, and the Total Cumulative Usage.

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. Return the Set Slide

switch to the RUN position when you are finished.

TO RESET THE HEAT ENERGY USAGE: While viewing the Total Usage value,

press and hold the HOLD button for at least 4 seconds. The usage should

now be displayed as “00:00”. Return the Set Slide switch to the RUN

position when you are finished.

TO VIEW THE COOL USAGE TIMERS: Place the System Mode switch in the

OFF position, and the Set Slide switch in the FILT/ENRGY position. Press

and hold the NEXT button while sliding the System Mode switch from OFF to

COOL. The words “TODAY USAGE” will appear at the top of the screen,

along with the word “COOL” and the amount of cooling system runtime

(displayed as “HH:MM”, for hours and minutes). Use the UP/DOWN buttons

to cycle between Today’s Usage, Yesterday’s Usage, and the Total Cumulative

Usage. 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. Return the Set Slide

switch to the RUN position when you are finished.

TO RESET THE COOL ENERGY USAGE: While viewing the Total Usage value,

press and hold the HOLD button for at least 4 seconds. The usage should

now be displayed as “00:00”. Return the Set Slide switch to the RUN

position when you are finished.

HARDWARE RESET: The Hardware Reset button (labeled

“HW RST”) is a small round push button that is located

towards the right side if 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

HW RST

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 left side if the circuit board, just below the

battery holder. A Software Reset is used to erase all

SW RST

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, than return to normal. The

thermostat will still retain the current day and time even after a Software

Reset has been performed.

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, press and hold both the

NEXT and HOLD buttons, while also perform a single press of the Hardware

Reset button (the LCD display screen will become fully populated). Continue

to hold the NEXT and HOLD buttons until the LCD display screen returns to

normal. 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 “-- -- LOW BATT -- --” appears at the top 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.

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.