INSTALLATION AND OPERATING INSTRUCTIONS

TX1500b SERIES

SMART TEMP ELECTRONIC THERMOSTAT

MO DAY

HEAT PM
SET SATURDAY PROGRAM SET WEEKDAY PROGRAM SET DAY/TIME
SET SUNDAY PROGRAM FILTER

FAN AUTO ON

HEAT OFF COOL

Patents Pending

TO SET TIME & DAY Rotate Dial to SET DAY/TIME. Press UP to change td Press UP/DOWN to set time. TO SET PROGRAMS Rotate Dial to SET WEEKDAY

SIMPLIFIED INSTRUCTIONS

TO SET TIME & DAY Rotate Dial to SET DAY/TIME. Press UP to change Press UP/DOWN to set time. TO SET PROGRAMS Rotate Dial to SET TEMPORARY TEMPERATURE OVERRIDE Press UP/DOWN to adjust set temperature. To clear OVERRIDE press UP/DOWN until original set temperature appears or wait for
TEMPORARY TEMPERATURE OVERRIDE Press UP/DOWN to adjust set temperature. To clear OVERRIDE press UP/DOWN until original set temperature appears or wait for the start tf the next period

Easy as 123

Your thermostat is a precision instrument. Please handle it with care. Turn off electricity to the appliance before installing or servicing thermostat or any part of the system. Do not turn electricity back on until work is completed. Do not short (jumper) across electric terminals at control on 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.

Installs Easily

Set Day & Time

Choose Heat or Cool

LUX PRODUCTS CORPORATION Mt. Laurel, New Jersey 08054, USA 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.

INSTALLATION

Complete, Easy To Read Programming And Installation Instructions Inside
Please read all instructions carefully before beginning installation.

TOOLS REQUIRED

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

I M P O RTA N T !

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 for future reference.

THERMOSTAT LOCATION

To avoid electrical shock and to prevent damage to the OFF 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.

C A U T I O N

FEATURES
The TX1500 can The Active Program Period be used with The Set Temperature Liquid Crystal Lux Speed Dial most 24 volt Display gas, oil or electric heating and air conditioning systems, single-stage Thermostat heat pumps or gas Body millivolt heating systems. System It cannot be used Switch with 120 volt heating Fan Switch systems or multistage heat pumps. Ask your dealer for other LUX thermostats to Easy to control those follow systems. instructions The TX1500 is programmable. There Thermostat are four Cover programming periods Button to Light Display 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 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.
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 has been completed. 7. This thermostat does not require leveling.

REMOVING THE OLD THERMOSTAT
Switch electricity to the furnace and air conditioner OFF; then proceed with the following steps.
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.
Read instructions carefully before removing any wiring from 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.
MOUNTING THE TX1500 ON THE WALL
1. Strip insulation 3/8 in. (9.5mm) from wire ends and clean off any corrosion.
2. Fill wall opening with non-combustible insulation to prevent drafts from affecting the thermostat.
3. Press up on the button on bottom of thermostat and swing the body away from the base and up to remove the body from the base. Be careful not to drop the body or disturb electronic parts. Leave the cover closed while the body is being removed from the base.
COPYRIGHT 2006 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED

Terminals

W RH B

Latch Button

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.

N O T E

TYPICAL HOOKUP FOR 2-WIRE 24V HEATING SYSTEM AND MILLIVOLT SYSTEM

G Y W RH B O RC

TYPICAL HOOKUP FOR 3-WIRE HEAT SYSTEM IF THIRD WIRE IS FAN WIRE
TYPICAL COOLING AND HEATING SYSTEM (4-WIRE)
GAS VALVE FAN 24 VAC TRANSFORMER OR THERMOPILE 110

Figure 8

GAS VALVE
COOL COMP 24 VAC TRANSFORMER 110

Figure 9

24 VAC HEAT TRANSFORMER 110

Figure 10

ATTACHING WIRES
4. 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.
TYPICAL COOLING AND HEATING SYSTEM (5-WIRE)
TYPICAL SINGLE-STAGE HEAT PUMP WIRING
FAN REMOVE JUMPER BETWEEN RH & RC

ADD JUMPER BETWEEN Y&W

CHG. OVER

COOL COMP
24 VAC HEAT TRANSFORMER VAC COOL TRANSFORMER

Figure 11

Figure 12
Do not allow wires to touch each other or parts on thermostat. Wires must be trapped between black spacer and brass terminal. Also, be sure to tighten securely all 7 electrical terminal screws.
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.

WIRING DIAGRAMS

Heating Systems
FAN RELAY COOLING COMPRESSOR HEATING CONTROL HEATING TRANSFORMER DAMPER OR CHANGEOVER VALVE

(POWERED IN HEAT)

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.

Cooling Systems

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

Heat Selector

SW1 ELECT RL1 GAS 5/2 MIN ON/OFF C/F 24/12H
DAMPER OR CHANGEOVER VALVE

(POWERED IN COOL)

COOL TRANSFORMER
REPLACE BATTERIES WHEN INDICATOR APPEARS OR AT LEAST ONCE A YEAR.

Tape Off

Tape Off **

Tape Off *

* 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 Heating/Cooling Systems
4- or 5-Wire with One Transformer
* If both Y and C wire are present, tape off 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. Heating/Cooling Systems
5- or 6-Wire with Two Transformers
1. Remove fresh batteries from their carton. 2. Remove body of thermostat as described at bottom of 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.

Battery Compartment

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.

(Optional) (Optional)

TECHNICAL SERVICE

(Optional)

* If both Y and C wire are present, tape off C wire.
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 8:00AM and 4:30PM Eastern Standard Time, Monday through Friday. You can also receive technical assistance online anytime day or night at http://www.luxproducts.com. Our web site 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 These diagrams below are provided for new installations or unreferenced wires.
Limited Warranty: If this unit fails because of defects in materials or workmanship within three years of 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 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 participating retailer from which purchase was made, along with proof of purchase. Please refer to "TECHNICAL ASSISTANCE" before returning thermostat. Purchaser assumes all risks and liability for incidental and consequential damage resulting from 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

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 N O T E automatically runs your systems fan The FAN switch works only if your system during heating and cooling. Setting the provides a wire for the TX1500s G terminal. FAN switch to ON runs your systems fan continuously even without heating or cooling.

This thermostat is armchair programmable You can make any program or setting changes with the thermostat body off or on the wall thermostat base.
VACATION TEMPERATURE HOLD

TU EVE

Press HOLD. Adjust 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 thermostats FILTER Monitor back to zero as follows. Rotate the dial to FILTER
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. PERIOD WEEKDAYS preprograms MORN DAY EVE NIGHT MORN DAY EVE NIGHT HEAT 6:00 AM 70 8:00 AM 62 6:00 PM 70 10:00 PM 62 6:00 AM 70 8:00 AM 62 6:00 PM 70 10:00 PM 62 COOL 6:00 AM 78 8:00 AM 85 6:00 PM 78 10:00 PM 82 6:00 AM 78 8:00 AM 85 6:00 PM 78 10:00 PM 82

To reset the counter

HR FILTER
To change the FILTER Usage Monitor limit Rotate the dial to FILTER

Hold for two seconds

To change the limit from 0-500 hours
SAT & SUN preprograms
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.
The dial must be in the RUN position to close the door.

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, MO TU WE TH FR Day, Evening, and Night) is programmed for HEAT and for COOL. MORN

PROGRAM FOR: START AT:

SET TEMP

SWING SETTINGS

SET TEMP SWING
Press together To change swing
Select COOL to program the Select HEAT to program the OR TX1500 for controlling your air conditioner. TX1500 for controlling your heater.

Dial must be in the run position
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.
UP NEXT UP NEXT UP NEXT UP NEXT DOWN

Press to set.

To change the start time for MORN. To change the temp. setting for MORN.
UP NEXT UP NEXT UP NEXT UP

To program temperature.

To change the start time for EVE. To program temperature.

TEMPERATURE CALIBRATION

HOLD NEXT
Press together To adjust the thermostat
To move to DAY. To change start time for DAY. To program temperature.
To change the temp. setting for EVE. To move to NIGHT.
Rotate the dial to SET DAY/TIME
To change the start time for NIGHT. To program temperature.

PROGRAM LOCK

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

TH MORN HEAT

To change the temp. setting for DAY. To move to EVE.
To change the temp. setting for NIGHT. Rotate dial to RUN position to start the programs.

SETTING THE TIME AND DAY

SU DAY
C A U T I O N 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.
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. SW1 To change to a 24HR clock - remove jumper- 24/12H. ELECT GAS Press the reset key on the front of the thermostat for RL1 5/2 MIN C/F ON/OFF changes to take effect. Reprogram as necessary.
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.

To change current day.

To set current time. The (e.g. 12:00) will be flashing.

UP DOWN

To change the current time.

24/12H

TEMPERATURE OVERRIDE AND TEMPERATURE HOLD TEMPORARY TEMPERATURE OVERRIDE
These features let you change the current Set Temperature without changing the programs stored in your thermostats memory.
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.

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 next program period press UP/DOWN until original set temperature appears. OVERRIDE indicator will disappear from display.

INSTALLATION AND OPERATING INSTRUCTIONS
SMART TEMP ELECTRONIC THERMOSTAT

MO DAY

TX1500 SERIES
To avoid electrical shock and Please read all instructions carefully to prevent damage to the OFF before beginning installation. furnace, air conditioner, and thermostat, disconnect the power TOOLS REQUIRED supply before beginning work. This #1 Phillips screwdriver (small) can be done at the fuse box, at the Drill with 3/16-in. (4.8mm) bit circuit breaker, or at the appliance.

INSTALLATION

C A U T I O N

THERMOSTAT LOCATION

HEAT PM MO DAY

HEAT PM

SET SATURDAY PROGRAM SET WEEKDAY PROGRAM SET DAY/TIME
SET SUNDAY PROGRAM FILTER

FAN AUTO ON

HEAT OFF COOL

Patents Pending

TO SET TIME & DAY Rotate Dial to SET DAY/TIME. Press UP to change c rrent day Press UP/DOWN to set time. TO SET PROGRAMS Rotate Dial to SET WEEKDAY

SIMPLIFIED INSTRUCTIONS

TO SET TIME & DAY Rotate Dial to SET DAY/TIME. Press UP to change Press UP/DOWN to set time. TO SET PROGRAMS Rotate Dial to SET WEEKDAY TEMPORARY TEMPERATURE OVERRIDE Press UP/DOWN to adjust set temperature. To clear OVERRIDE press UP/DOWN until original set temperature appears or wait for h f h i d
TEMPORARY TEMPERATURE OVERRIDE Press UP/DOWN to adjust set temperature. To clear OVERRIDE press UP/DOWN until original set temperature appears or wait for the start tf the next period
Installs Easily Fcil de Instalar
Set Day & Time Programe el da y la hora
Choose Heat or Cool Escoja Calentar O Enfrar

Easy as 123

Complete, Easy To Read Programming And Installation Instructions Inside
Instrucciones Completas y Fciles de Leer Para Su Programacin E Instalacin Includas Dentro

43221 Rev B

LUX PRODUCTS CORPORATION Mt. Laurel, New Jersey 08054, USA

I M P O RTA N T !

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.
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 has been completed. 7. This thermostat does not require leveling.

REMOVING THE OLD THERMOSTAT
These instructions may contain information beyond that required for your particular installation. Please save for future reference.

FEATURES

The TX1500 can The Active Program Period be used with The Set Liquid Crystal Temperature Programming most 24 volt Display Dial gas, oil or electric heating and air conditioning systems, singleThermostat stage heat pumps or Body gas millivolt heating systems. It cannot be System used with 120 volt heatSwitch ing systems or multiFan stage heat pumps. Ask Switch 1500 your dealer for other LUX thermostats to control those systems. Easy to follow The TX1500 is instructions programmable. There are four programming Thermostat periods per day. Each Cover period can be proButton to Light Display grammed separately. Easy to use program dial. FIGURE A 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 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. A 4-minute minimum off time in COOL prevents your air conditioning system from being damaged. Two AA batteries (not included) are used to retain your time and temperature program and to light the display.

Read instructions carefully Switch electricity to the furnace and air conditioner before removing any OFF; then proceed with the following steps. wiring from existing thermostat. Wires must be 1. Remove cover from old thermostat. labeled before they are Most are snap-on types and simply removed. When removing pull off. Some have locking screws on the side. These must be loosened. wires from their terminals, ignore the color of the 2. Note the letters printed near the terminals. Attach wires since these may not labels (enclosed) to each wire for identification. Remove and label wires one at a time. Make sure the comply with the standard. 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

SET SATURDAY PROGRAM

SET WEEKDAY PROGRAM

HEAT OFF

SET DAY/TIME
1. Strip insulation 3/8 in. (9.5mm) from wire ends and clean off any corrosion.
2. Fill wall opening with non-combustible insulation to prevent drafts from affecting the thermostat.
TO SET TIME & DAY Rotate Dial to SET DAY/TIME. Press UP to change current day. Press NEXT.
Press UP/DOWN to set time.
Rotate the dial to the RUN position to close the door.
TO SET PROGRAMS Rotate Dial to SET WEEKDAY, SATURDAY or SUNDAY PROGRAM. Press UP/DOWN to adjust start time. Press NEXT. Press UP/DOWN to adjust temperature. Press NEXT. Repeat as needed or rotate dial to RUN to stop Programming.
TEMPORARY TEMPERATURE OVERRIDE Press UP/DOWN to adjust set temperature. To clear OVERRIDE press UP/DOWN until original set temperature appears or wait for the start tf the next period. TEMPERATURE HOLD Press HOLD. Adjust temperature as desired with UP/DOWN. To clear, press HOLD again. Need Help? Call 1-800-421-1130
3. Press up on the button on bottom of thermostat and swing the body away from the base and up to remove the body from the base. Be careful not to drop the body or disturb electronic parts. Leave the cover closed while the body is being removed from the base.

Your thermostat is a precision instrument. Please handle it with care. Turn off electricity to the appliance before installing or servicing thermostat or any part of the system. Do not turn electricity back on until work is completed. Do not short (jumper) across electric terminals at control on 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.

Terminals

N O T E
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.
These diagrams below are provided for new installations or unreferenced wires.
TYPICAL HOOKUP FOR 2-WIRE 24V HEATING SYSTEM AND MILLIVOLT SYSTEM

G Y W RH B O RC

W RH B
TYPICAL HOOKUP FOR 3-WIRE HEAT SYSTEM IF THIRD WIRE IS FAN WIRE
TYPICAL COOLING AND HEATING SYSTEM (4-WIRE)

ATTACHING WIRES

Latch Button
GAS VALVE FAN 24 VAC TRANSFORMER OR THERMOPILE 110

Figure 8

GAS VALVE
4. 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.
COOL COMP 24 VAC TRANSFORMER 110

Figure 9

24 VAC HEAT TRANSFORMER 110

Figure 10

TYPICAL COOLING AND HEATING SYSTEM (5-WIRE)
TYPICAL SINGLE-STAGE HEAT PUMP WIRING
Do not allow wires to touch each other or parts on thermostat. Wires must be trapped between black spacer and brass terminal. Also, be sure to tighten securely all 7 electrical terminal screws.
FAN REMOVE JUMPER BETWEEN RH & RC
ADD JUMPER BETWEEN Y&W

CHG. OVER

COOL COMP

WIRING DIAGRAMS

Heating Systems
FAN RELAY COOLING COMPRESSOR HEATING CONTROL HEATING TRANSFORMER DAMPER OR CHANGEOVER VALVE

(POWERED IN HEAT)

24 VAC HEAT TRANSFORMER VAC COOL TRANSFORMER

Figure 12

Cooling Systems

Figure 11

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.
DAMPER OR CHANGEOVER VALVE

(POWERED IN COOL)

COOL TRANSFORMER
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. REPLACE BATTERIES WHEN INDICATOR APPEARS OR AT LEAST ONCE A YEAR.
SW1 ELECT GAS RL1 24/12H C/F

Tape Off

Tape Off **

Tape Off *

REPLACE
* 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 Heating/Cooling Systems
4- or 5-Wire with One Transformer
* If both Y and C wire are present, tape off C wire.

Heating/Cooling Systems

5- or 6-Wire with Two Transformers
1. Remove fresh batteries from their carton. Heat Selector Battery 2. Remove body of thermostat as described at Compartment bottom of first column. 3. Remove the used batteries. N O T E 4. Install TWO new AA size alkaline batteries in the battery compartment. Observe the polarity marking When replacing batteries, you have approximately 1 minute shown in the compartment. Place body back on wall. before programs are lost. 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.

(Optional) (Optional)

(Optional)

TECHNICAL SERVICE

If you have any problems installing or using this thermostat, please reread the instructions carefully. Technical Service is available through our Technical Service Number. If you require assistance, please call our offices between 8:00 a.m. and 4:30 p.m. Eastern Standard Time, Monday through Friday. The number is (856) 234-8803 or visit our online technical support at www.luxproducts.com.

WARRANTY

Limited Warranty: If this unit fails because of defects in materials or workmanship within one year of 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 one year from 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 participating retailer from which purchase was made, along with proof of purchase. Please refer to Technical Service Section before returning thermostat. Purchaser assumes all risks and liability for incidental and consequential damage resulting from 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.

This thermostat is armchair programmable You can make any program or setting The TX1500 alternately displays the changes with the thermostat body off or on current time and the room the wall thermostat base.

OPERATION

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 thermostats FILTER Monitor back to zero as follows. Rotate the dial To reset the UP to FILTER counter To change the FILTER Usage Monitor limit Rotate the dial to FILTER To change the Hold for two DOWN UP NEXT limit from seconds 0-500 hours To disable the FILTER Usage Monitor set the limit to 0 hours

HR FILTER SET HR FILTER

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. N O T E In spring and fall or when windows The FAN switch works only if your system are open, you can set the system provides a wire for the TX1500s G terminal. switch OFF. Setting the FAN switch to AUTO automatically runs your systems fan during heating and cooling. Setting the FAN switch to ON runs your systems fan continuously even without heating or cooling.

THE BUILT-IN PROGRAMS

Push in the RESET key. This PERIOD HEAT COOL sets the built-in heating and WEEKDAYS MORN 6:00 AM 70 6:00 AM 75 cooling programs. To review the built-in programs, rotate the dial preprograms DAY 8:30 AM 60 8:30 AM 85 to SET WEEKDAY / SATURDAY / EVE 3:00 PM 70 3:00 PM 75 SUNDAY PROGRAM. NIGHT 11:00 PM 65 11:00 PM 80 You can use the built-in MORN 6:00 AM 70 6:00 AM 75 programs as shown, or change SAT & SUN DAY 6:15 AM 70 6:15 AM 75 them as you wish. Each day is divided into four periods. Each preprograms EVE 3:00 PM 70 3:00 PM 75 period has its own starting time NIGHT 11:00 PM 65 11:00 PM 80 and temperature. The dial must be in the RUN position to close the door.

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. HOLD NEXT Press together

SET TEMP SWING

SWING SETTINGS
Dial must be in the run position

UP NEXT

To change swing Press to set.

TEMPERATURE CALIBRATION

HOLD NEXT DOWN
Press together To adjust the thermostat
Rotate the dial to SET DAY/TIME

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. A blank programming chart is provided below for you to record your temperature settings in that chart.
PROGRAM MO TU WE TH FR FOR: MORN START AT:
To prevent tampering with set programs. The sequence of keys to lock and unlock the program:

NEXT NEXT NEXT HOLD

PROGRAM LOCK

MORN HEAT

SET TEMP
CHANGING FROM F TO C AND A 12HR CLOCK TO A 24HR CLOCK
WARNING: Making these changes will require you to reset the thermostat. Copy any of your customized programs onto the chart below. This will be your reference to reenter the programs afterwards. 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.
Select HEAT to program the OR Select COOL to program the TX1500 for controlling your heater. 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. To change the start To change the start DOWN DOWN UP UP time for EVE. time for MORN. NEXT NEXT To program temperature. To program temperature.

UP NEXT UP NEXT UP NEXT

P R O G R A M M I N G

MON THRU FRI

C H A R T

TEMP. TIME

To change the temp. setting for MORN. To move to DAY.

UP NEXT UP NEXT UP

To change the temp. setting for EVE. To move to NIGHT.

PERIOD

MORN DAY EVE NIGHT MORN DAY EVE NIGHT MORN DAY EVE NIGHT
To change start time for DAY. To program temperature.
To change the start time for NIGHT. To program temperature.
To change the temp. setting for DAY. To move to EVE.
To change the temp. setting for NIGHT. Rotate dial to RUN position to start the programs.

SETTING THE TIME AND DAY

SU DAY
C A U T I O N 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.

To change current day.

To set current time. The (e.g. 12:00) will be flashing.

UP DOWN

To change the current time.
TEMPERATURE OVERRIDE AND TEMPERATURE HOLD
TEMPORARY TEMPERATURE OVERRIDE

TU EVE

OVERRIDE
These features let you change the current Set Temperature without changing the programs stored in your thermostats memory.
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 next program period press UP/DOWN until original set temperature appears. OVERRIDE indicator will disappear from display. Press HOLD. Adjust temperature as desired with UP/DOWN. Temperature setting will not change even after next program period begins. To clear, press HOLD again.
VACATION TEMPERATURE HOLD