
The Lux TX500E is a smart‚ programmable thermostat offering efficient temperature control. It includes features like Smart Temp and filter change reminders‚ detailed in its PDF manual.
This thermostat‚ with included installation guides‚ provides convenient heating and cooling scheduling for optimal home comfort and energy savings.
Overview of Features
The Lux TX500E boasts a comprehensive suite of features designed for user convenience and energy efficiency. Key among these is the Smart Temp functionality‚ which learns your heating and cooling preferences for automated comfort.
A helpful filter change reminder ensures optimal HVAC system performance‚ while customizable programming allows for tailored heating and cooling schedules. The thermostat supports both temporary and permanent hold functions‚ providing flexible temperature control.
Its intuitive display utilizes clear icons for easy understanding‚ and the unit offers backlight control for enhanced visibility. Installation is straightforward with the included hardware and instruction manual‚ and the thermostat operates on standard AA alkaline batteries.
What’s Included in the Box
Upon opening the Lux TX500E package‚ you’ll find everything needed for a successful installation and setup. The box contains the Lux TX500E Smart Temp Programmable Thermostat itself‚ the central component for controlling your home’s climate.
Essential for mounting‚ a complete set of mounting hardware is included‚ ensuring a secure and stable installation on your wall. A detailed installation guide is provided‚ offering step-by-step instructions for a smooth process.
Furthermore‚ a comprehensive instruction manual is included‚ detailing all features and functionalities of the thermostat; This ensures you can fully utilize the Smart Temp capabilities and customize settings to your preferences.

Installation Guide
Proper installation of the Lux TX500E requires careful attention to safety precautions and wiring diagrams‚ as detailed in the included manual.

Follow the guide for a secure and functional setup.
Safety Precautions
Before beginning installation of your Lux TX500E thermostat‚ disconnect power to your heating and cooling system at the breaker box to avoid electrical shock.
Always read and understand all instructions in the manual before proceeding. Improper wiring can damage the thermostat or your HVAC system. If you are uncomfortable with electrical work‚ consult a qualified technician.
Exercise caution when handling wiring‚ ensuring connections are secure and insulated. Do not install the thermostat in a location exposed to direct sunlight‚ extreme temperatures‚ or moisture. Keep the thermostat and its components out of reach of children. Failure to follow these precautions could result in injury or damage.
Tools Required for Installation
To successfully install your Lux TX500E smart thermostat‚ you will need a few essential tools. A small flathead screwdriver is crucial for terminal connections and adjustments. A Phillips head screwdriver will be needed for mounting the thermostat base to the wall.
Wire strippers are necessary to expose the correct length of wire for secure connections. A level ensures the thermostat is mounted straight for aesthetic appeal and accurate readings. A pencil is helpful for marking screw locations.
Finally‚ having a digital multimeter can be beneficial for verifying power is off before you begin and for troubleshooting‚ though it isn’t strictly required.
Wiring Diagram and Terminal Identification
The Lux TX500E utilizes a standard wiring configuration. Carefully identify your existing thermostat wires before disconnecting anything! Common terminals include R for 24VAC power‚ C for common‚ W for heating‚ Y for cooling‚ and G for the fan.
Refer to the detailed wiring diagram in the installation manual (available as a PDF download) for specific configurations based on your HVAC system type – conventional‚ heat pump‚ or millivolt.
Incorrect wiring can damage your system‚ so double-check all connections. If you are unsure‚ consult a qualified HVAC technician. The manual provides clear labeling and color-coding for easy identification.
Mounting the Thermostat Base
Before mounting‚ ensure power to your HVAC system is OFF at the breaker. Use the included mounting hardware to secure the thermostat base to the wall‚ utilizing existing screw holes whenever possible.
A level is recommended to ensure accurate temperature readings. If new holes are needed‚ drill pilot holes first to simplify screw insertion.
Carefully feed the thermostat wires through the opening in the base. Ensure no wires are pinched or damaged during this process. Once the base is securely mounted‚ proceed with connecting the wires to the appropriate terminals‚ referencing the wiring diagram.
Battery Installation
The Lux TX500E requires two AA size alkaline batteries for operation‚ even with a common (C) wire connected. It is recommended to use Energizer or DURACELL brand batteries for optimal performance and longevity.
Locate the battery compartment on the thermostat base – typically at the rear. Insert the batteries‚ paying close attention to the polarity markings (+ and -) inside the compartment.
Ensure the batteries are securely seated. Incorrect battery installation can prevent the thermostat from functioning correctly. The display should illuminate briefly upon correct battery insertion‚ indicating power is supplied.

Operating Instructions
The Lux TX500E offers intuitive control via its display. Users can program schedules‚ set temperatures‚ and utilize features like temporary holds for personalized comfort.
Initial Setup and Programming
Upon installation‚ the Lux TX500E requires initial setup to personalize your heating and cooling experience. Begin by setting the current date and time‚ crucial for accurate scheduling. The thermostat then prompts you to configure your system type – heating‚ cooling‚ or both.
Programming involves defining daily or 7-day schedules‚ specifying desired temperatures for different time periods (wake‚ leave‚ return‚ sleep). Utilize the thermostat’s buttons to adjust settings and create a customized comfort profile. Remember to save your settings after each adjustment. The user manual provides a step-by-step guide‚ ensuring a smooth and efficient programming process. Explore the Smart Temp functionality for automated adjustments.
Understanding the Display Icons
The Lux TX500E utilizes several display icons to communicate its status and operation. A flame icon indicates the heating system is active‚ while a snowflake signifies cooling. The “Fan” icon shows the fan is running‚ and “Auto” means it operates based on programmed settings.
A clock icon displays the current time‚ and a calendar indicates scheduled programming is active. Battery icons alert you to low battery levels‚ prompting replacement with Energizer or Duracell AA batteries. The “Hold” icon signifies a temporary or permanent temperature override. Refer to the user manual for a comprehensive icon glossary‚ ensuring you fully understand the thermostat’s feedback and control signals.
Setting the Date and Time
Accurate date and time settings are crucial for proper scheduling with the Lux TX500E. To set these‚ navigate to the settings menu using the thermostat’s buttons. Typically‚ you’ll access this through a “Menu” or “Settings” option on the display.
Use the up and down arrows to adjust the year‚ month‚ and day. Repeat this process for the hour and minute. Confirm each selection by pressing the “Select” or “Enter” button. Ensure the correct AM/PM designation is chosen. Refer to the instruction manual for specific button configurations. Correct date and time ensure your programmed schedules function as intended‚ maximizing energy savings and comfort.

Programming Heating and Cooling Schedules
The Lux TX500E allows for customized heating and cooling schedules to optimize comfort and energy use. Access the programming mode via the thermostat’s menu. You can typically set different temperatures for “Wake‚” “Leave‚” “Return‚” and “Sleep” periods throughout the day.
Use the arrow buttons to adjust the temperature for each period. Select the days of the week the schedule should apply to – options include weekdays‚ weekends‚ or individual days. Save each programmed period. Consult the PDF manual for detailed step-by-step instructions. Properly programmed schedules significantly reduce energy consumption while maintaining a comfortable home environment.
Temporary and Permanent Hold Functions
The Lux TX500E offers both temporary and permanent hold functions for overriding programmed schedules. A temporary hold allows you to set a specific temperature for a defined duration‚ after which the thermostat reverts to its programmed schedule. This is ideal for short-term temperature adjustments.
A permanent hold‚ conversely‚ maintains the selected temperature indefinitely‚ completely overriding the programmed schedule until manually changed. Access these functions through the thermostat’s menu‚ as detailed in the instruction manual. Use these features to quickly adjust comfort levels without altering your long-term programming. Remember to consult the PDF for precise button sequences.

Advanced Features
The Lux TX500E boasts advanced features like Smart Temp‚ a filter change reminder‚ and customizable backlight control‚ enhancing user experience and efficiency.
Smart Temp Functionality
Smart Temp is a key feature of the Lux TX500E‚ designed to learn your heating and cooling preferences for optimal comfort and energy savings. This intelligent system automatically adjusts the temperature based on your lifestyle and the external weather conditions.
Unlike traditional programmable thermostats‚ Smart Temp eliminates the need for complex scheduling. The thermostat observes your manual adjustments and creates a personalized schedule over time. It anticipates your needs‚ ensuring a comfortable environment without constant programming.
To activate Smart Temp‚ simply allow the thermostat to operate without intervention for a few days. The system will then begin to learn and adapt‚ providing a truly customized climate control experience. Refer to the user manual for detailed instructions and troubleshooting.
Filter Change Reminder
The Lux TX500E includes a helpful Filter Change Reminder feature‚ ensuring optimal HVAC system performance and air quality. A dirty air filter restricts airflow‚ reducing efficiency and potentially damaging your equipment; This reminder proactively alerts you when it’s time for a replacement.
The thermostat tracks operating hours and prompts a filter change based on a pre-set timeframe – typically every 30‚ 60‚ or 90 days. You can customize this interval through the thermostat’s settings menu‚ as detailed in the user manual.
When the reminder activates‚ a visual indicator will appear on the display. Regularly changing your filter‚ as prompted by the TX500E‚ contributes to lower energy bills and a healthier home environment.
Backlight Control
The Lux TX500E features adjustable backlight control for enhanced visibility in low-light conditions. This allows for easy reading of the display without needing to fully illuminate a room. The thermostat’s user manual details how to customize this feature to your preference.
You can typically adjust the backlight’s brightness level or set it to automatically activate with button presses. Some models offer a continuous backlight option‚ while others allow you to set a duration for how long the backlight remains on after interaction.
Accessing the backlight settings is usually done through the thermostat’s menu system. Optimizing the backlight not only improves usability but can also contribute to energy conservation.

Troubleshooting
Common issues with the Lux TX500E‚ like unresponsive displays or incorrect readings‚ can often be resolved by resetting the thermostat‚ as detailed in the manual.
Common Issues and Solutions
Display Not Lit: Ensure fresh AA batteries are correctly installed. If the display remains blank‚ try replacing the batteries with a new set from a reputable brand like Energizer or Duracell.
Thermostat Not Responding: A reset is often the first step. Refer to the PDF manual for specific reset instructions. If issues persist‚ verify proper wiring connections according to the wiring diagram.
Incorrect Temperature Readings: Confirm the thermostat isn’t exposed to direct sunlight or drafts. Recalibrate the temperature settings following the operating instructions.
Heating/Cooling Not Engaging: Double-check the programmed schedule and ensure it isn’t in “Hold” mode. Verify the system’s breaker hasn’t tripped. Consult a qualified HVAC technician if problems continue.
Resetting the Thermostat
To reset your Lux TX500E‚ begin by removing the thermostat from the wall plate. Locate the small reset button‚ typically found inside the battery compartment‚ as detailed in the instruction manual.
Using a small‚ non-metallic object like a paperclip‚ gently press and hold the reset button for approximately 5-10 seconds. The display should briefly flicker or turn off‚ indicating a successful reset.
Reinstall the batteries and reattach the thermostat to the wall plate. You will then need to re-program the date‚ time‚ and your desired heating/cooling schedules. Refer to the initial setup section of the PDF manual for guidance;
This process restores factory defaults.

Technical Specifications
The Lux TX500E requires two AA alkaline batteries and operates within a temperature range of 32°F to 122°F‚ as outlined in its manual.
Power Requirements
The Lux TX500E thermostat is designed to operate solely on battery power‚ eliminating the need for a common (C-wire) connection in many installations. Specifically‚ it requires two AA-size alkaline batteries – Energizer or Duracell are recommended for optimal performance and longevity.
Battery life will vary depending on usage patterns and display settings‚ but generally‚ you can expect several months of operation with a fresh set of batteries. The thermostat does not have an AC power option. Regular battery checks are advised‚ and the display will indicate low battery levels when replacement is needed‚ ensuring uninterrupted temperature control. Refer to the user manual for detailed battery replacement instructions.
Temperature Range
The Lux TX500E thermostat is capable of accurately controlling temperatures within a broad range‚ ensuring comfort in diverse climates. The programmable temperature settings span from 40°F to 90°F (4.4°C to 32.2°C) for heating mode‚ allowing for efficient warmth during colder months.
Conversely‚ in cooling mode‚ the thermostat effectively manages temperatures between 50°F and 90°F (10°C to 32.2°C)‚ providing relief during warmer periods. The display resolution offers precise temperature readings‚ and the user manual details how to calibrate the thermostat for optimal accuracy. These ranges accommodate most residential heating and cooling systems‚ ensuring reliable performance.
Dimensions and Weight

The Lux TX500E thermostat is designed with a compact form factor to seamlessly integrate into most home decors. Its dimensions are approximately 4.7 inches in width‚ 3.1 inches in height‚ and 1.2 inches in depth. These measurements ensure it fits comfortably on a standard wall plate without being overly intrusive.
Regarding weight‚ the thermostat is remarkably lightweight‚ tipping the scales at around 0.6 pounds (approximately 272 grams) without batteries. This minimal weight simplifies the installation process‚ requiring minimal strain on the mounting surface. Refer to the user manual for detailed diagrams and mounting considerations.

Resources and Support
Lux Products offers comprehensive support‚ including a downloadable PDF manual and direct contact options for assistance with your TX500E thermostat.
Downloading the PDF Manual
Accessing the complete user manual for your Lux TX500E Smart Thermostat is simple and convenient. A readily available PDF version provides detailed instructions‚ wiring diagrams‚ and troubleshooting tips.
Several online resources host this valuable document. You can find it through search engines by specifying “Lux TX500E manual PDF”‚ or directly from websites like PexSupply (http://s3.pexsupply.com/manuals/1286467725648/40228_PROD_FILE.pdf) and ManualsLib.
The PDF is also accessible via the Manual Library (https://manualzilla.com/manual/7010773). Downloading the manual ensures you have offline access to all the information needed for installation‚ operation‚ and maintenance of your thermostat.
Contacting Lux Products Support
If you require further assistance beyond the Lux TX500E’s user manual‚ Lux Products Support offers several avenues for help. While specific contact details aren’t explicitly provided in the readily available online information‚ exploring the official Lux Products website is the best starting point.
Look for a “Support” or “Contact Us” section on their website to find phone numbers‚ email addresses‚ or a live chat option. You may also find helpful FAQs and troubleshooting guides there.
Remember to have your thermostat’s model number (TX500E) readily available when contacting support to expedite the assistance process. They can provide expert guidance on installation‚ programming‚ and resolving any issues you may encounter.