Base

Terminals

 

G

 

Y

 

W RC RH

 

O

 

B

Latch Button

ATTACHING WIRES

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.

TYPICAL HOOKUP FOR 2-WIRE

TYPICAL HOOKUP FOR 3-WIRE

 

TYPICAL COOLING AND

24V HEATING SYSTEM AND

 

HEAT SYSTEM IF THIRD

 

HEATING SYSTEM

 

MILLIVOLT SYSTEM

 

WIRE IS FAN WIRE

 

(4-WIRE)

G

 

G

FAN

G

FAN

Y

 

Y

 

Y

COOL

 

 

COMP

 

 

 

 

 

W

GAS

W

GAS

W

GAS

VALVE

VALVE

VALVE

RCRH

RCRH

RCRH

24 VAC

24 VAC

24 VAC

 

TRANSFORMER

 

 

HEAT

O

OR

O

TRANSFORMER

O

TRANSFORMER

THERMOPILE

 

 

 

 

 

 

4. Hold the base against the wall, with the wires coming through wherever it is convenient for wiring. Route the wires to 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.

C A U T I O N

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 securely tighten all 7 electrical terminal screws.

WIRING DIAGRAMS

B

110

B

110

B

 

 

110

 

TYPICAL COOLING AND

 

 

TYPICAL SINGLE-STAGE

 

HEATING SYSTEM

 

 

HEAT PUMP WIRING

 

(5-WIRE)

 

 

 

G

FAN

 

G

FAN

Y

COOL

 

Y

COMP

COMP

 

 

 

 

 

W

GAS

 

W

 

VALVE

 

 

RCRH

 

RCRH

 

24 VAC

24 VAC

ALTERNATE

 

HEAT

COOL

 

 

 

 

HEATING SYSTEMS

COOLING SYSTEMS

O

TRANSFORMER TRANSFORMER

O

 

 

24 VAC

FAN RELAY

COOLING COMPRESSOR

HEATING CONTROL

COOL TRANSFER

HEATING TRANSFER

DAMPER OR CHANGEOVER

VALVE (Powered in Cool)

DAMPER OR CHANGEOVER

VALVE (Powered in Heat)

B

TAPE OFF*

 

C

TAPE OFF**

 

TC TAPE OFF

G F G

Y

4 H W

W

 

RC

5 V R* RC RH

RH

 

O B

FAN RELAY

COOLING COMPRESSOR

HEATING CONTROL

COOL TRANSFER

HEATING TRANSFER

DAMPER OR CHANGEOVER

VALVE (Powered in Cool)

DAMPER OR CHANGEOVER

VALVE (Powered in Heat)

 

TC

TAPE OFF

G

G F

 

C * Y

Y

 

 

W

V R RC

RC RH

 

 

O

 

 

B

 

 

B

B

CHANGE

HEAT

OVER

110

110

TRANSFORMER

 

REMOVE JUMPER BETWEEN "RC" AND "RH"

ALTERNATE

 

 

110

 

 

 

 

 

ADD JUMPER BETWEEN "Y" AND "W"

N O T E

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

INSTALLING BATTERIES/ MAINTENANCE

The TX250 requires batteries to operate your furnace and retain its programming in memory. Replace the batteries when the REPLACE indicator appears in the display or at least once a year.

REPLACE BATTERIES WHEN

SE

GAS

ELEC

*If replacing a Honeywell TM-11, tape off wire "R";

*If both "Y" and "C" wire are present, tape off "C" wire.

connect wire "B" to terminal "RH".

 

**If replacing a Honeywell thermostat with a clock wire "C",

 

tape off wire "C".

 

 

 

HEATING / COOLING SYSTEMS

HEATING / COOLING SYSTEMS

4- or 5-WIRE WITH ONE TRANSFORMER

5- or 6-WIRE WITH TWO TRANSFORMERS

 

INDICATOR APPEARS

IN

 

LO BAT

OR AT LEAST

"AA"

"AA"

 

 

ONCE A YEAR.

 

HR

 

 

 

 

1. Remove fresh batteries from their carton.

2.

Cup and hold thermostat body and left tab

 

 

 

 

 

 

Battery

 

 

 

in place with left hand. Separarte tabs

 

 

 

 

 

Compartment

 

 

 

with right hand.

 

 

 

 

 

 

 

 

 

3.

Remove the used batteries.

 

 

 

 

 

N O T E

 

FAN RELAY

COOLING COMPRESSOR

HEATING CONTROL

COOL TRANSFER

HEATING TRANSFER

DAMPER OR CHANGEOVER

VALVE (Powered in Cool)

DAMPER OR CHANGEOVER

VALVE (Powered in Heat)

TC TAPE OFF

G

F G

Y * C

Y

W

W

 

RC

V R

RC

RH

O

OPTIONAL

O

B

 

B

OPTIONAL

 

 

FAN RELAY

COOLING COMPRESSOR

HEATING CONTROL

COOL TRANSFER

HEATING TRANSFER

DAMPER OR CHANGEOVER

VALVE (Powered in Cool)

DAMPER OR CHANGEOVER

VALVE (Powered in Heat)

TC TAPE OFF

G

F G

 

C * Y

Y

W

 

W

 

V R RC

RC

4 A

RH

RH

O

OPTIONAL

O

B

 

B

OPTIONAL

 

 

4. Install two new Energizer® or DURACELL® "AA"

 

When replacing batteries, you

size alkaline batteries in the battery compartment.

have approximately 1 minute

Observe the polarity marking shown in the

 

compartment. Place body back on wall.

 

before programs are lost.

WARNING: Use Energizer® or DURACELL®

 

 

5. Align the top of the body onto

Alkaline Batteries Only.

 

the base and press together.

 

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.

*If both "Y" and "C" wire are present, tape off "C" wire.

*If both "Y" and "C" wire are present, tape off "C" wire.

P R O G R A M M I N G

C H A R T

DAY

PERIOD

HEAT

COOL

These diagrams below are provided for new installations or unreferenced wires.

 

TIME

TEMP.

TIME

TEMP.

MON.

MORN

 

 

 

THRU

DAY

 

 

 

 

 

 

 

 

FRI.

EVE

 

 

 

 

 

 

 

 

 

NIGHT

 

 

 

 

MORN

 

 

 

SAT.

DAY

 

 

 

and

EVE

 

 

 

SUN.

NIGHT

 

 

 

© COPYRIGHT 2004 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED

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Lux Products TX250 installation instructions Attaching Wires, Installing BATTERIES/ Maintenance

TX250 specifications

The Lux Products TX250 is a highly versatile digital thermostat designed for both residential and commercial use. It stands out for its user-friendly interface and advanced features that enhance comfort while promoting energy efficiency. The TX250 is particularly well-suited for both heating and cooling systems, making it a fantastic choice for year-round climate control.

One of the standout features of the TX250 is its large touchscreen display, which simplifies navigation through the settings and schedules. Users can easily adjust their temperature preferences and view the current conditions with just a few taps. The intuitive menu layout enables both novice and experienced users to utilize the full potential of the thermostat with ease.

The TX250 incorporates smart scheduling technology, allowing users to create personalized temperature schedules for different days of the week. This feature enables significant energy savings by automatically adjusting the temperature according to the homeowner's routines. The unit learns from user behavior, optimizing settings over time to ensure maximum comfort while minimizing energy consumption.

Another important characteristic of the TX250 is its compatibility with various heating and cooling systems. Whether you have a furnace, heat pump, or central air conditioning, the TX250 can integrate seamlessly, making it a versatile option for different households. Additionally, it supports both conventional 24V systems and multi-stage systems, providing flexibility for various setups.

In terms of energy efficiency, the TX250 boasts an Energy Star rating, which indicates its ability to help reduce energy bills while maintaining comfortable indoor temperatures. The unit can also provide alerts for extreme temperature conditions, allowing users to address any potential issues before they escalate.

The TX250 is designed with a durable casing, ensuring longevity and reliable performance. It also features battery backup, keeping your settings in place even during power outages. Additionally, its installation is straightforward, with clear instructions provided to guide users through the process.

In summary, the Lux Products TX250 thermostat excels in providing optimal comfort through its innovative features and advanced scheduling capabilities. Its versatility, energy efficiency, and user-centric design make it a valuable addition to any home or office. As consumers increasingly prioritize smart and efficient technologies, the TX250 stands out as a premier choice for modern climate control.