Lux TX500B PROGRAMMABLE Troubleshoot Guide

Lux TX500B PROGRAMMABLE Troubleshoot Guide

How To Use

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 Gillette Company, Inc.

Complete, Easy To Read Programming And Installation Instructions Inside

IMPORTANT!

READ INSTALLATION INSTRUCTIONS FIRST

Thank you for your confidence in our product. To obtain the best results from your investment, please read these instructions and acquaint yourself with your purchase before installing your new thermostat. Then follow the installation procedures, one step at a time. This will save you time and minimize the chance of damaging the thermostat and the systems it controls. These instructions may contain information beyond that required for your particular installation. Please save it for future reference.

FEATURES

• The TX1500 can be used with most 24-volt gas, oil, or electric heating and air conditioning systems, single-stage heat pumps or gas millivolt heating systems.
  It cannot be used with 120-volt heating systems or multistage heat pumps. Ask your dealer for other LUX thermostats to control those systems.
• The TX1500 is programmable.
  There are four programming periods per day. Each period can be programmed separately.
• Easy to use Lux Speed Dial®.
• You can use the built-in time/temperature programs, or alter them to suit your schedule. The TX1500 provides separate programming for weekdays, Saturday, and Sunday — for both heating and cooling. You can override the programmed temperatures for as little as one programming period or for an entire vacation.
• In cool weather, when the system switch is set to HEAT, the TX1500 will maintain cooler “set back” room temperatures to save energy. It will then change to warmer
  “comfort” settings — all automatically, at specified times during the day.
• In warm weather, when the system switch is set to COOL, the TX1500 will maintain warmer “set back” room temperatures to save energy. It will then change to cooler “comfort” settings – all automatically, at specified times during the day.
• A large liquid crystal display shows the time, day of the week, and room and set temperatures. It will remind you when the filter should be changed in your blower.
• Temperature swing adjustment lets you fine-tune your system for maximum comfort and economy.
• 5/2 Minute Selectable Minimum Run/Off Time for Short Cycle/Compressor Protection
• Two Energizer® or DURACELL® “AA” alkaline batteries (not included) are used to retain your time and temperature program and to light the display.

CAUTION

• Your thermostat is a precision instrument. Please handle it with care.
• Turn off the electricity to the appliance before installing or servicing the thermostat or any part of the system. Do not turn the electricity back on until work is completed.
• Do not short (jumper) across electric terminals at the control on the furnace or air conditioner to test the system. This will damage the thermostat and void your warranty.
• All wiring must conform to local codes and ordinances.
• This thermostat is designed for use with 24-volt and millivolt systems. The thermostat should be limited to a maximum of 1.0 amps; higher amperage may cause damage to the thermostat. If you are in doubt, call your utility company.

INSTALLATION

CAUTION: To avoid electrical shock and to prevent damage to the furnace, air conditioner, and thermostat, disconnect the power supply before beginning work. This can be done at the fuse box, at the circuit breaker, or at the appliance.

Please read all instructions carefully before beginning installation.

TOOLS REQUIRED

• #1 Phillips screwdriver (small)
• Drill with 3/16-in. (4.8mm) bit

THERMOSTAT LOCATION

On replacement installations, mount the new thermostat in place of the old one unless the conditions listed below suggest otherwise. On new installations, follow the guidelines listed below.

1. Locate the thermostat on an inside wall, about 5 ft. (1.5m) above the floor, and in a room that is used often.
2. Do not install it where there are unusual heating conditions, such as: in direct sunlight; near a lamp, radio, television, radiator, register, or fireplace; near hot water pipes in a wall; near a stove on the other side of a wall.
3. Do not locate in unusual cooling conditions, such as: on a wall separating an unheated room; or in a draft from a stairwell, door, or window.
4. Do not locate in a damp area. This can lead to corrosion that will shorten thermostat life.
5. Do not locate where air circulation is poor, such as: in a corner or an alcove; or behind an open door.
6. Do not install the unit until all construction work and painting have been completed.
7. This thermostat does not require leveling.

REMOVING THE OLD THERMOSTAT

Switch the electricity to the furnace and air conditioner OFF; then proceed with the following steps.

CAUTION

Read the instructions carefully before removing any wiring from the existing thermostat. Wires must be labeled before they are removed. When removing wires from their terminals, ignore the color of the wires since these may not comply with the standard.

1. Remove cover from old thermostat. Most are snap-on types and simply pull off. Some have locking screws on the side. These must be loosened.
2. Note the letters printed near the terminals. Attach labels (enclosed) to each wire for identification. Remove and labeL wires one at a time. Make sure the wires do not fall back inside the wall.
3. Loosen all screws on the old thermostat and remove it from the wall.

MOUNTING THE TX1500 ON THE WALL

1. Strip insulation 3/8 in. (9.5mm) from wire ends and clean off any corrosion.
2. Fill the wall opening with non-combustible insulation to prevent drafts from affecting the thermostat.
3. Press the button on the bottom of the thermostat and swing the body away from the base and up to remove the body from the base.

CAUTION

Be careful not to drop the body or disturb electronic parts.
Leave the cover closed while the body is being removed from the base.

NOTE
If you are mounting the base to a soft material like plasterboard or if you are using the old mounting holes, the screws may not hold. Drill a 3/16-in. (4.8mm) hole at each screw location, and insert the plastic anchors provided. Then mount the base as described below.

ATTACHING WIRES

Hold the base against the wall, with the wires coming through wherever it is convenient for wiring. Route the wires to below the terminal block. Position the base for best appearance (to hide any marks from an old thermostat). Attach the base to the wall with the two screws provided.

CAUTION

Do not allow wires to touch each other or parts on the thermostat. Wires must be trapped between black spacer and brass terminal. Also, be sure to tighten securely all 7 electrical terminal screws.

WIRING DIAGRAMS

• If replacing a Honeywell TM-11, tape off wire “R”; connect wire “B” to terminal “RH.”
• If replacing a Honeywell thermostat with a clock wire “C,” tape off wire “C”

• If both Y and C wires are present, tape off the “C” wire.
• If you have a “B” wire in your system which is used as a common wire, connecting it to the “B” terminal on this thermostat may damage your system and/or the thermostat.
• If both Y and C wire are present, tape off “C” wire.
• If both Y and C wire are present, tape off “C” wire.

NOTE: If you have an electric system and the blower does not operate after installation, find the electric/gas heat selector on the back of the body. Move the selector to the ELEC position.

INSTALLING BATTERIES/ MAINTENANCE

The TX1500 requires batteries to operate your furnace and retain its programming in memory and to light the display. Replace the batteries when the REPLACE indicator appears in the display or at least once a year.

NOTE: When replacing batteries, you have approximately 1 minute before programs are lost.

1. Remove fresh batteries from their carton.
2. Remove the body of the thermostat as described at bottom of the first column.
3. Remove the used batteries.
4. Install two new Energizer® or DURACELL® “AA” size alkaline batteries in the battery compartment. Observe the polarity marking shown in the compartment. Place body back on wall.WARNING: Use Energizer® or DURACELL® Alkaline Batteries Only.
5. Hook the top of the body onto the base, swing the body down, and snap the body onto the base.
   Installation is now complete. Be sure to turn the power back on to your heating and /or air conditioning system. If this is the first time you are installing batteries, the thermostat will display “SUN 12:00 AM”. Within 90 seconds the thermostat will begin to display the room temperature alternately with the time. To correct the display, see “Setting the TIME and DAY,” after you set the programs.

TECHNICAL SERVICE

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.luxproducts.com. Our website offers you answers to the most common technical questions, and also permits you to email your questions to our technical support staff at your convenience.

WARRANTY

Limited Warranty: If this unit fails because of defects in materials or workmanship within three years of the date of original purchase, LUX Products Corporation 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 the 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 participating retailer 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. only.

OPERATION

• This thermostat is “armchair programmable” You can make any program or setting changes with the thermostat body off or on the wall thermostat base.
• The TX1500 alternately displays the current time and the room temperature. It also displays the day of the week and the currently active program period that is controlling the temperature: MORN, DAY, EVE, or NIght.
• The set point temperature will appear in the right side of the display. In the winter, set the system switch to HEAT to control your heating system. In the summer, set the switch to COOL to control your air conditioner. In spring and fall or when windows are open, you can set the system switch OFF.
• Setting the FAN switch to AUTO automatically runs your system’s fan during heating and cooling. Setting the FAN switch to ON runs your system’s fan continuously even without heating or cooling.

NOTE: The FAN switch works only if your system provides a wire for the TX1500’s “G” terminal.

THE BUILT-IN ENERGY STAR® PROGRAMS

Push in the RESET key. This sets the built-in heating and cooling programs. To review the built-in programs, rotate the dial to SET WEEKDAY / SATURDAY / SUNDAY PROGRAM.
You can use the built-in programs as shown, or change them as you wish. Each day is divided into four periods. Each period has its own starting time and temperature.
The dial must be in the RUN position to close the door.

	PERIOD	HEAT	COOL
WEEKDAYS preprograms	MORN DAY EVE NIGHT	6:00 AM 70° 8:00 AM 62° 6:00 PM 70° 10:00 PM 62°	6:00 AM 78° 8:00 AM 85° 6:00 PM 78° 10:00 PM 82°
SAT & SUN preprograms	MORN DAY EVE NIGHT	6:00 AM 70° 8:00 AM 62° 6:00 PM 70° 10:00 PM 62°	6:00 AM 78° 8:00 AM 85° 6:00 PM 78° 10:00 PM 82°

PROGRAMMING THE TX1500

You can change any preset times and/or temperatures to suit your schedules for the weekday, Saturday and Sunday programs. Each period (Morning, Day, Evening, and Night) is programmed for HEAT and for COOL.

Select HEAT to program the TX1500 for controlling your heater.
OR
Select COOL to program the TX1500 for controlling your air conditioner.

Rotate dial to SET WEEKDAY PROGRAM. To program SATURDAY or SUNDAY, rotate the dial to SET SATURDAY or SET SUNDAY PROGRAM. With dial on SET WEEKDAY PROGRAM, you will see the display above.

SETTING THE TIME AND DAY

CAUTION
The TX1500 is protected against normal static electric discharges. However, in extremely dry weather you should touch another metal object before the TX1500 to avoid potential loss of programs.

Open the drop-down door on the front of the thermostat. Rotate the dial to the SET DAY/TIME position. You should see the display pictured above with a day of the week flashing. When you are finished setting the day and time, rotate the dial to RUN to return to normal operation or to another position to continue programming.

TEMPERATURE OVERRIDE AND TEMPERATURE HOLD 

These features let you change the current Set Temperature without changing the programs stored in your thermostat’s memory.

TEMPORARY TEMPERATURE OVERRIDE

• Press UP/DOWN to change the current temperature setting. The OVERRIDE indicator appears on display.
• The OVERRIDE feature will be automatically canceled at the start of the next program period.
• To cancel OVERRIDE prior to the next program period press UP/DOWN until the original set temperature appears. The OVERRIDE indicator will disappear from display.

VACATION TEMPERATURE HOLD

• Press HOLD. Adjust the temperature as desired with UP/DOWN.
• Temperature setting will not change even after next program period begins.
• To clear, press HOLD again.

ADVANCED FEATURES

FILTER USAGE MONITOR

The FILTER Monitor counts the hours since the filter in your blower was last changed. After 250 hours of use, FILTER will appear in the display. After you change the filter, set the thermostat’s FILTER Monitor back to zero as follows.

To disable the FILTER Usage Monitor set the limit to 0 hours

TEMPERATURE SWING

A thermostat works by turning your heating or cooling system on and off whenever the room temperature varies a certain number of degrees from the set-point temperature. This variation is the “swing.”
Your system should cycle on about 3 to 6 times per hour. A smaller swing number increases the number of cycles, so room temperature is more constant. A larger swing number decreases the number of cycles, to save energy in most cases.

SWING SETTINGS

TEMPERATURE CALIBRATION

PROGRAM LOCK

To prevent tampering with set programs.
The sequence of keys to lock and unlock the program:

 

WARNING: Making these changes will require you to reset the thermostat. Copy any of your customized programs onto the blank chart. This will be your reference to re-enter the programs afterwards.

CHANGING FROM °F TO °C AND A 12HR CLOCK TO A 24HR CLOCK

• WARNING: Making these changes will require you to reset the thermostat.
• Located to the right of the gas-electric switch are two black jumpers C/F and 24/12H.
• To change to Celsius – remove jumper – C/F.
• To change to a 24HR clock – remove jumper- 24/12H.
• Press the reset key on the front of the thermostat for changes to take effect.
• Reprogram as necessary.

5 MIN/2 MIN MINIMUM ON/OFF TIME

Your thermostat has an internal timer built in to protect your compressor. The timer forces a minimum on/off time of 5 minutes. You may change this minimum on/off time to 2 minutes. To accomplish this, remove the jumper labeled 5/2 MIN. You must press the small reset button on the face of the thermostat for the changes to take effect.

References:

Download Manual

Lux TX500B PROGRAMMABLE Troubleshoot Guide

Lux TX500B PROGRAMMABLE Troubleshoot Guide