IMPORTANT!
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.
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:
NOT COMPATIBLE WITH:
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:
WARNING:
All wiring must conform to the local codes and ordinances that are in your particular location.
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 operations to occur.
WIRING DIAGRAM NOTES:
(Important, please read all notes before connecting wires)
INSTALL BATTERIES INTO THERMOSTAT: Install two brand new Energizer® or DURACELL® “AA” size alkaline (only) batteries, into the thermostat’s battery compartment. Ensure the batteries are installed in the proper direction.
GAS / ELEC CIRCUIT BOARD OPTION (“G” TERMINAL FAN OPERATION): This setting is a plastic shorting cap called a jumper. This jumper must remain installed, and set to either GAS or ELECTRIC for your system to work properly. This setting changes how your system’s blower fan (if applicable) is controlled while the thermostat is in HEAT or EMERG HEAT mode when the Fan switch in the AUTO position. This setting does not affect the fan operation while in COOL mode.
When set to “GAS”, the blower fan is controlled solely by the heating system itself. Systems that would typically use the “GAS” setting would be: natural gas, propane, or oil furnaces, and boilers. NOTE: If your blower fan does not operate properly after installation, move the Gas / Electric option to the “Electric” setting.
When set to “ELEC”, the blower fan is controlled directly by the thermostat. This setting is required for heating systems that do not control their own fan, such as HEAT PUMPS, and units that only have an electric-resistive heating element as the heat source.
The 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.
Setup options for how the thermostat will function, along with choosing your particular system type, are performed using a menu on the display screen.
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 MODE | COOL MODE |
| MORN | 6:00 AM 70 °F (21 °C) | 6:00 AM 78 °F (26 °C) |
| DAY | 8:00 AM 62 °F (17 °C) | 8:00 AM 82 °F (28 °C) |
| EVE | 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) |
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 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. In general for most heat pump systems, use Emergency Heat mode whenever the outside temperature is less than 32°F (0°C) degrees.
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 canceled moving the mode switch to OFF, then back to HEAT or COOL.
TEMPERATURE HOLD: A Temperature Hold is used for maintaining a fixed set temperature. Once a Hold is initiated, the thermostat will maintain the set temperature indefinitely. A Hold may be used for days, weeks, or even months at a time, as long as the thermostat has adequate power. To enter Hold mode: press the HOLD button one time and the word “HOLD” will appear in the display. To cancel a Hold, press the HOLD button one more time. If a complete power failure occurs during a Temperature Hold, the thermostat will continue to remain in Hold mode even after the power comes back on. NOTE: If you plan to leave the thermostat in Hold mode for an extended duration (unattended), it is advisable to install new Energizer® or DURACELL® “AA” size alkaline batteries prior to leaving to ensure reliable operation of your heating and cooling system.
STATIC NOTICE: This thermostat is protected against normal static electric discharges, however, to minimize the risk of damaging the unit in extremely dry weather, please touch a grounded metal object before touching your thermostat.
By default, this thermostat has 4 separate program periods for both Heat and Cool modes, they are: MORN, DAY, EVE, and NITE. Each period ends at the start time of the following period. The heat programs are set in HEAT mode, and the cool programs are set in COOL mode.
NOTE: If the thermostat is configured to use only 2 periods per day instead of 4 (SYSTEM CONFIGURATION AND SETUP OPTIONS), the thermostat will only use the DAY and NITE periods. The MORN and EVE periods will not be visible on the screen.
SET TEMPERATURE PROGRAMS: Move the Set Slide switch to the TEMP PROG position. Programming will start with all 5 weekdays, Monday through Friday (all grouped together). 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 the temperature for the DAY period, pressing the NEXT button after each to advance. Continue with these same steps to adjust the start times and set temperatures for the EVE and NITE program periods.
When the NITE period is finished for the weekdays, the thermostat will advance forward to the Saturday program, with the MORN period start time flashing. Perform the same steps that you used for setting the weekday periods, pressing the NEXT button to advance through each flashing value.
When the Saturday NITE period is finished, the thermostat will advance forward to the Sunday program, with the MORN period start time flashing. Perform the same steps that you used for setting the Saturday periods, pressing the NEXT button to advance through each flashing value. Return the Set Slide switch to the RUN position when you are finished.
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 needs 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 on 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.
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 “STOP” and “LOCK CODE” will appear on 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 “STOP” and “LOCK CODE” will appear on 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 “STOP” and “LOCK CODE” will appear on the screen, along with two digits. Use the UP/DOWN buttons to enter the current code (“00” by default) and press the NEXT button one time. The word “SET” will now be displayed. Use the UP/DOWN buttons to choose a new 2-digit code between “00” and “99”. Press the NEXT button to accept the setting. The screen will flash briefly to confirm the code change, and return to the Normal Run screen in Off mode.
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. The 4-button sequence which locks the thermostat must be entered within a 10-second timeframe, or the keypad lockout sequence will have to be entered again from the beginning.
GRAPHICAL 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 Graphical Filter Monitor displays a visual bar graph in the center of the screen, which shows the amount of air filter life remaining (in % percent), since the last time the air filter timer has been reset. Each dot in the filter bar graph equals 10 percent (example: 4 dots shown means 40 percent filter life remaining). 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 completly expired, the vertical filter bar graph will be empty, and the word “FILTER” will flash on the screen.
TO SET THE AIR FILTER DURATION: Move the Set Slide switch to the “AIR FILTER” position. The words “SET DAYS” will be shown on the screen, along with the word “FILTER” and 2-3 characters at the top right corner of the display. 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. Return the Set Slide switch to the RUN position when you are finished.
TO RESET THE FILTER USAGE COUNTER: Move the Set Slide switch to the “AIR FILTER” position. The three small digits at the bottom of the screen tell you the quantity of filter days remaining. Pressing the NEXT button will toggle the display between showing the days remaining as a number, or a graphical precentage remaining using the vertical bar graph. Press both the UP and DOWN buttons together at the same time, 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.
HARDWARE RESET: The Hardware Reset button (labeled “HW RST”) is a small round push button that is located in the middle 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 t cycle off, 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: A Software Reset is used to erase ALL heating and cooling temperature programs, and to return all user-adjustable software settings back to their original factory default values. To perform a Software Reset, first ensure that the thermostat’s Keypad Lockout is not enabled and then move the System Mode switch to the OFF position. Press and hold the UP, DOWN, and NEXT buttons all together for at least 5 seconds. The LCD display screen will become fully populated (let go of buttons at this point), and than return to normal. The clock will have to be changed to match the current day and time.
COMPRESSOR PROTECTION BYPASS: This optional feature permits the installer or service technician to temporarily disable the built in compressor protection delays. This is most useful for diagnosing and testing the heating and cooling systems after installation is complete, and should not be used during normal operation. To activate this feature, 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.
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 i “LO BATT” appears in the display screen). The batteries are located on the back of the thermostat’s circuit board. The front portion of the thermostat can be removed from the back half by using the tabs on the top edge of the thermostat housing.
When installing new batteries, we recommend using only brand new Energizer® or DURACELL®, “AA” size alkaline batteries. Please observe the polarity markings shown in the battery compartment to ensure proper installation. When finished, line up the front of the thermostat to the base, and firmly press together to securely latch the front and back halves together properly.
BATTERY GRAPHIC: Anytime that batteries are physically present in the thermostat, there will be a visual indication of the remaining battery life available on the thermostat’s display screen. When brand new batteries are installed in the battery compartment, this graphic should indicate full battery life remaining with all bars present.
Over time, as the battery life decreases to the point of having only 1 bar left, the Temperature and Clock digits will start to alternate between showing their normal content, and the words “L BATT”. At this point the batteries will need to be replaced as soon as practical to avoid the uninterrupted operation of your heating and/or cooling system. In most cases, the thermostat will be capable of providing you with approximately two months of normal operation once the point of 1 bar left has been reached, and the screen shows the words “LO BATT”.
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 8:00 AM and 4:30 PM 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, and answers to the most common technical questions, and also permits you to email your questions to our technical support staff at your convenience.
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 the thermostat. Purchaser assumes all risks and liability for incidental and consequential damage resulting from the 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 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.
Mt. Laurel, New Jersey 08054, USA http://www.luxproproducts.com
856-234-8803
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