Lux 500 Thermostat Instructions

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Smart thermostats, including the Lux 500, have been around for a while. However, they are becoming increasingly popular with homeowners. Not only do they make heating and cooling your house more efficient, they are good for the environment. According to the U.S. Environmental Protection Agency and U.S. Department of Energy, you would save 56 trillion BTUs of energy and offset 13 billion pounds of greenhouse gas emissions each year if everyone used a smart thermostat. This is equal to the emissions of 1.2 million vehicles.

Lux 500 Thermostat Instructions
Image Credit: Peter Dazeley/The Image Bank/GettyImages

How to Program a Lux 500 Thermostat

Once you have your Lux installed, programming it to your particular temperature needs is fairly simple. An instruction manual should come with the thermostat. Hang on to that because it will prove useful.

When you open the panel on a Lux, you will see a screen in the center, then several switches and buttons that will allow you to set the thermostat's day, time and temperature settings.

Set the Day and Time

Lift the panel on the thermostat. Then, move the slide switch on the right to the "Day" and "Time" position. The day will flash on the screen's left-hand corner. Press the up arrow until you find the correct day, then push the button on the lower right-hand side that says "Next." Now the time should flash in the upper right-hand corner of the screen. Once again, use the up or down arrow to set the correct time. Make sure to note that the AM or PM designation is correct.

Set the Temperature

The Lux will come with default set temperatures for both heat and cool modes. Both modes have four designated time slots: morning, day, evening, and night. A different temperature is set for each block of time. The default mode for cool, for example, starts with 78 degrees at 6 a.m. Day mode starts at 8 a.m. when the temperature rises to 82 degrees. In the evening mode, which begins at 6 p.m., the temperature lowers back to 78 degrees. Then during night mode at 10 p.m., the temperature lowers again to 75 degrees.

You can set these temperatures to your own preferences. You can also make a custom schedule for different days of the week. Consider when your home is empty to determine the best temperature settings.

To set your Lux 500 thermostat, first pick "Cool" or "Heat" mode using the switch on the panel's lower left corner. Then, move the slide switch on the right to "Temp Program." First you set the weekday temperatures. The top left of the screen should now display all five weekdays, and the right-hand corner should display the time you wish to set the morning temperature. The lower right will have the temperature. Use the up and down arrows to adjust the time and the temperature. Press "Next" after setting the time, then you will be able to set the temperature. Press "Next" again to set the next time and temperature for the following time slot, which is "Day."

When you've finished setting the temperature for the four designated periods of time during each weekday, the screen will advance to Saturday. You may want to select different temperatures for the weekend. When finished setting Saturday's temperatures, the screen advances to Sunday. Set custom temperatures for this day, as well, if you desire.

Making Changes

Once you've set your specific temperatures for each day of the week, it's easy to check and see what you set or make any changes. Pushing the "Next" button will cycle you through all your choices. Simply pause on a choice you want to change, make the changes using the up and down arrows, then continue by pressing "Next."

Once you're finished, set the slide switch on the right back to "Run."

If you need to reset your Luxpro thermostat, simply hold down the Reset button for five seconds. The padlock icon will now be in the unlocked position.


Heather Skyler is a journalist and novelist who has written for wide variety of publications, including, The New York Times and SKY magazine.

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