Tip & How-To about Heating & Cooling

Lux Thermostat 500

The Lux 500 Thermostat is an affordable programmable thermostat that gives you a very easy way to customize your heating and cooling temperatures to your schedule. The programming of this thermostat is easily the simplest that I have found in a programmable t-stat.



The Lux 500 series thermostats are a great economical way to reduce energy and utility expenses by raising or lowering your temperature settings a the times you set. The installation is so easy that most any DIY’er can install this thermostat. It has an easy to read display and the rotary dial makes the programming very user friendly.

A few of the other great features of this unit are, a keyboard lockout, and an air filter reminder.

This thermostat can be used on any 24v AC or 750mV single stage conventional heating/cooling system. Single stage heat pumps without auxiliary heat will also work with this thermostat.

Here is a summary of the features of this thermostat

Normal 0 MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";}

  • 5 - 2 Day programming
  • 4 Periods per day
  • Large easy-to-read display
  • LUX patented user-friendly Speed Dial®
  • Filter usage monitor and alert
  • Default Energy Star approved program
  • Temporary Temperature Override
  • Temperature Hold
  • Keyboard Lockout
  • Temperature Calibration
  • Swing Settings #1 - #9
  • Fahrenheit or Celsius temperature Scale
  • 12/24 Time Format
  • Low Battery Warning Indicator
  • Mercury Free


As you can see this thermostat will give you a lot of great features at an affordable price.

Posted by on

Heating & Cooling Logo

Related Topics:

Related Questions:

2 Answers

I recently installed a Honeywell RTH6350D to replace a 2 year old LUX and can get everything to work but the heat(reason for replacing the LUX). Works sometimes but not consistantly. Have the common red(R) with jumper to RC, white(W), yellow(Y) and green(G) wires in play but do have black, blue, brown and orange available but have always been taped off to my knowledge. Please advise to how to get the heat on consistantly.


R represents power supply for the heat system.
RC represents power supply for cooling system.
G represents fan (neutral).
W represents heat system.
Y represents cooling system.
Y2 represents 2nd stage cooling.
W2 represents 2nd stage heating.
AUX represents heat pump.
Try calling 1-800-468-1502.
Their english is "REALLY BAD"!!!

Jan 02, 2011 | Honeywell Electronic Programmable...

0 Answers

The Honeywell TH811U1003 thermostat is a universal programmable thermostat that gives you electronic control of 24V AC heating and cooling systems. It also has the capability to be used on 750mV heating systems One of the best features of this thermostat is it?s big clear backlit display. The current temperature, the set temperature and the time of day are displayed at all times. Simply touching the screen also activates the back light feature. This thermostat has a menu programming guide the helps you through the process of setting up your schedule. You are able to select multiple days and customize the thermostat for any kind of unique schedule you may have. This thermostat also let?s you take it off the wall and still be able to program it. This lets you watch TV and program it at the same time. There are built in backups that will hold the time for you if the power goes out. This t-stat will also update for daylight savings time. There are HOLD features that allow you to modify your program and hold it and then go back to the original. Change reminders that are built in include the air filter, UV light, humidifier service and of course the batteries of the thermostat. The blower of you furnace can also be programmed to run extra to help increase the air quality in your home. If you decide you want to know the outdoor temperature you can purchase an additional sensor and then hook it to you thermostat. The outdoor temperature will then be displayed on you thermostat. This feature also gives you the capability of using the sensor to monitor indoor temperatures remotely. This thermostat will keep you very comfortable as the variation typically in temperature from set point is less than 1 degree F. The thermostat after a period of time learns the characterizes of the way the house or building heats and cools and then adjusts to get the most efficient operation of the heating or cooling system while maintaining a very close temperature tolerance. By changing a few of the parameters in the thermostat this can be can be configured for either single stage conventional heat/cool systems or any single stage heat pump system. Specifications of the Honeywell TH8110U1003 Thermostat Description: VisionPRO Touchscreen 7-Day Programmable 1 Heat/1 Cool Conventional and Heat Pump Thermostat Application: Gas, Oil or Electric; Heat Pump; Millivolt Programmability: Universal Programming from 7 Day to Non-Programmable Changeover: Auto or Manual Color: Premier White User Interface: Touchscreen Switch Positions (System): HEAT-OFF-COOL-AUTO Switch Positions (Fan): AUTO-ON Power Method: Battery or Hardwired Terminal Designations: R, RC, C, W (O/B), Y, G, S1, S2 Dimensions (in.): 4 9/16 in. high x 6 in. wide x 1 1/4 in. deep Mounting: Horizontal Electrical Ratings: 20 to 30 Vac Frequency: 60 Hz. 50 Hz Setting Temperature Range (F): Heat: 40? F to 90? F. Cool: 50? F to 99? F Setting Temperature Range (C): Heat: 4.5? C to 32? C. Cool: 10? C to 37? C Differential Temperature (F): 1? F Differential Temperature (C): 0.5? C Stages: Up to 1 Heat/1 Cool Outdoor Sensor: Yes, optional outdoor or indoor remote Remote Sensor: Yes, optional outdoor or indoor remote Sensor Element: Thermistor Currents (Heating): 1.0 A running Currents (Cooling): 1.0 A running Currents (Fan): 0.6A running Operating Humidity Range (% RH): 5 to 90% RH, non-condensing Comments: Selectable to and Heat Only or Cool Only Features: Screen lock

Jan 15, 2010 | Hardware & Accessories

1 Answer

Programmable thermostat intermittent problems...


Some tstats control humidity as well. Temp will over shoot set point in order to reach humidity s

Jun 24, 2017 | Honeywell Programmable Thermostat Heater

Not finding what you are looking for?

2,057 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

paulcarew

Level 3 Expert

2515 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Loading...