Lux TX500B User Manual

INSTALLATION AND OPERATING INSTRUCTIONS

GYW RH RC

OFF

TX500b SERIES

SMART TEMP

O M

N R O M

H E

Y A D

A T

E EV

T H IG N

DOWN

Installs Easily

Complete, Easy To Read Programming And Installation Instructions

LUX PRODUCTS CORPORATION • Philadelphia, PA 19112

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.

IMPORTANT!

READ THE

INSTALLATION

INSTRUCTIONS

FIRST.

FEATURES

• The TX500 can be used with most 24 volt gas, oil or electric heating and air conditioning systems or gas millivolt heating systems. It cannot be used

with 120 volt heating systems or heat pumps. Ask your dealer for other LUX thermostats to control those systems.

• The TX500 is programmable. There are four programming periods per day. Each period can be programmed separately.

• You can use the built-in time/ temperature programs, or alter them to suit your schedule. The

TX500 provides separate programming for weekdays and weekends — 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 TX500 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 TX500 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. 5/2 Minute Selectable Minimum Run/Off Time for Short Cycle/Compressor Protection

•

• Two Energizer

temperature programs.

• 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.

or DURACELL® “AA” alkaline batteries (not included) are used to retain your time and

WARNING: Use Energizer®or DURACELL®Alkaline Batteries Only.

CAUTION

ELECTRONIC THERMOSTAT

O M

ORN

H E

Y A

A T

NIGH

DOWN

SET

SUNDAY

WEEKDAY

RESET

FAN

PROGRAM

HEAT

AUTO

OFF

HOLD

COOL

SET

RUN

DAY/TIME

500

Patents Pending

SIMPLIFIED INSTRUCTIONS

TEMPORARY TEMPERATURE

TO SET PROGRAMS

TO SET TIME & DAY

OVERRIDE

•Rotate Dial to SET

•Rotate Dial to set DAY/TIME.

N R O

H E

Y A

A T

T H IG

DOWN

SET

SUNDAY

WEEKDAY

RESET

PROGRAM

PROGRA

HOLD

SET

RUN

DAY/TIME

500

Patents Pending

SIMPLIFIED INSTRUCTIONS

TO SET PROGRAMS

TO SET TIME & DAY

•Rotate Dial to SET

•Rotate Dial to set DAY/TIME.

Choose Heat or CoolSet Day & Time

FAN AUTO ON

TEMPORARY TEMPERATURE OVERRIDE

HEAT OFF COOL

Easy as

1–2–3

52016

Thank you for your confidence in our product. To obtain the best

results from your investment, please read this manual 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 instal-

lation. Please save for future reference.

LUX Speed Dial

The Active Program Period

MORN DAY EVE NIGHT

SET

WEEKDAY PROGRAM

SET

DAY/TIME

500

Patents Pending

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.

Thermostat Cover

The Set Temperature

Crystal Display

H E A T

SET

SUNDAY

RESET

PROGRAM

HOLD

RUN

SIMPLIFIED INSTRUCTIONS

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.

Liquid

DOWN

FAN AUTO

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.

Fan Switch

System Switch

HEAT OFF COOL

Thermostat Body/Sub-base

INSTALLATION

CAUTION

Please read all instructions carefully before beginning installation.

TOOLS REQUIRED

#1 Phillips screwdriver (small)

Drill with

⁄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 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.

MOUNTING THETX500 ON THE WALL

1. Strip insulation 3⁄8in. (9.5mm) from wire ends and clean off any corrosion.

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.

CAUTION

Be careful not to drop the body or disturb electronic parts.

Leave the cover closed while the body is being removed

Base

Screw Anchors (2)

from the base.

Terminals

Latch Button

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.

CAUTION

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.

2. Fill wall opening with

non-combustible insulation to prevent drafts from affecting

the thermostat.

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.

ELECT

GAS

DAY EVE NIGHT

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.

CAUTION

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 5 electrical terminal screws.

WIRING DIAGRAMS

TYPICAL COOLING AND

HEATING SYSTEM

(4-WIRE)

GYWRHRC

GAS

FAN

VALVE

COOL COMP

24 VAC HEAT

TRANSFORMER

110

Figure 10

TYPICAL COOLING AND

HEATING SYSTEM

(5-WIRE)

GYWRHRC

GAS

FAN

VALVE

REMOVE

COOL COMP

JUMPER

BETWEEN

RH & RC

24 VAC HEAT

TRANSFORMER

110

24 VAC COOL

TRANSFORMER

Figure 11

110

INSTALLING BATTERIES/ MAINTENANCE

The TX500 requires two new Energizer®or DURACELL®"AA" size alkaline batteries to operate your furnace and retain its programming in memory. Replace the batteries when the LO BATT indicator appears in the display or at least once a year.

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.

These diagrams are provided for new installations or unreferenced wires.

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

size alkaline batteries in the battery compartment.

or DURACELL®"AA"

REPLACE BATTERIES WHEN INDICATOR APPEARS

Heat Selector

Observe the polarity marking shown in the compartment.

Place body back on wall.

5. Place the body back on the wall. Hook the top of the

body onto the base, swing the body down and snap the

body onto the base.

WARNING: Use Energizer®or DURACELL

Alkaline Batteries Only.

Battery Compartment

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.

NOTE

When replacing batteries, you

have approximately 1 minute

before programs are lost.

TECHNICAL ASSISTANCE

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.

TYPICAL HOOKUP FOR 2-WIRE

24V HEATING SYSTEM AND

MILLIVOLT SYSTEM

GYWRHRC

GAS

VALVE

24 VAC

TRANSFORMER

THERMOPILE

110

Figure 8

TYPICAL HOOKUP FOR 3-WIRE

HEAT SYSTEM IF THIRD

WIRE IS FAN WIRE

GYWRHRC

GAS

VALVE

FAN

24 VAC

TRANSFORMER

110

Figure 9

WARRANTY

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.

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