INSTALLATION AND OPERATING INSTRUCTIONS
TX1500b SERIES
SMART TEMP
UP
O
M
Y
A
D
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A
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H
M
P
DOWN
Installs Easily
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.
Complete, Easy To Read Programming And Installation Instructions Inside
IMPORTANT!
READ
INSTALLATION
INSTRUCTIONS
FIRST
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®.
• Y ou can use the built-in time/temperatur e pr ograms, 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
time and temperature program and to light the display.
®
ELECTRONIC THERMOSTAT
UP
O
UP
O
M
Y
A
D
T
A
E
H
M
P
DOWN
SET
SET
SUNDAY
SATURDAY
RESET
FAN
PROGRAM
PROGRAM
AUTO
SET
FILTER
WEEKDAY
HOLD
ON
PROGRAM
SET
RUN
NEXT
DAY/TIME
SIMPLIFIED INSTRUCTIONS
•Press UP/DOWN to set time.
TEMPORARY TEMPERATURE OVERRIDE
TO SET TIME & DAY
•Press UP/DOWN to adjust set temperature.
•Rotate Dial to SET
TO SET PROGRAMS
•To clear OVERRIDE press UP/DOWN until
DAY/TIME.
•Rotate Dial to SET
original set temperature appears or wait for
•Press UP to change
M
Y
DA
AT
E
H
M
P
DOWN
SET
SET
SUNDAY
SATURDAY
RESET
FAN
PROGRAM
PROGRAM
HEAT
OFF
COOL
1500
Patents Pending
HEAT
AUTO
SET
OFF
FILTER
WEEKDAY
HOLD
ON
COOL
PROGRAM
SET
RUN
NEXT
DAY/TIME
1500
Patents Pending
SIMPLIFIED INSTRUCTIONS
•Press UP/DOWN to set time.
TEMPORARY TEMPERATURE OVERRIDE
TO SET TIME & DAY
•Press UP/DOWN to adjust set temperature.
•Rotate Dial to SET
TO SET PROGRAMS
•To clear OVERRIDE press UP/DOWN until
DAY/TIME.
•Rotate Dial to SET
original set temperature appears or wait for
•Press UP to change
Choose Heat or CoolSet Day & Time
Easy as
1–2–3
52017
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.
The Active Program Period
Lux Speed Dial
®
Liquid Crystal
Display
The Set Temperature
Thermostat
Body
System
Switch
Fan Switch
Easy to
follow
instructions
Thermostat
Cover
Button to Light Display
(not included) are used to retain your
CAUTION
• 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.
INSTALLATION
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 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.
Y
1. Remove cover from old
W
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
Y
W
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.
1. Strip insulation
3/8 in. (9.5mm)
from wire ends
and clean off
any corrosion.
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.
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.
Y
W
2. Fill wall opening with
R
non-combustible
insulation to prevent
drafts from affecting
the thermostat.
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.
© COPYRIGHT 2006 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED
Base
TYPICAL SINGLE-STAGE
HEAT PUMP WIRING
Figure 12
110
GYWRHBORC
COMP
FAN
24 VAC HEAT
TRANSFORMER
CHG.
OVER
ADD
JUMPER
BETWEEN
Y & W
ALT.
110
TYPICAL COOLING AND
HEATING SYSTEM
(5-WIRE)
FAN
COOL
COMP
GAS
VALVE
24 VAC HEAT
TRANSFORMER
110
Figure 11
24 VAC COOL
TRANSFORMER
REMOVE
JUMPER
BETWEEN
RH & RC
GYWRH RCOB
TYPICAL COOLING AND
HEATING SYSTEM
(4-WIRE)
Figure 10
110
GAS
VALVE
COOL
COMP
FAN
24 VAC HEAT
TRANSFORMER
GYWRH RCOB
TYPICAL HOOKUP FOR 3-WIRE
HEAT SYSTEM IF THIRD
WIRE IS FAN WIRE
Figure 9
GAS
VALVE
110
FAN
24 VAC
TRANSFORMER
GYWRH RCOB
TYPICAL HOOKUP FOR 2-WIRE
24V HEATING SYSTEM AND
MILLIVOLT SYSTEM
Figure 8
GAS
VALVE
110
24 VAC
TRANSFORMER
OR
THERMOPILE
GYWRH RCOB
Terminals
NOTE
GYW RH B O RC
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.
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 7 electrical terminal screws.
If you have an electric system and the blower does not operate after installation, find the
NOTE
electric/gas heat selector on the back of the body . Move the selector to the ELEC position.
WIRING DIAGRAMS
FAN RELAY
COOLING COMPRESSOR
HEATING CONTROL
HEATING TRANSFORMER
DAMPER OR CHANGEOVER VALVE
(POWERED IN HEAT)
DAMPER OR CHANGEOVER VALVE
COOL TRANSFORMER
GYWRHBORC
Tape Off
TC
* 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”
FAN RELAY
COOLING COMPRESSOR
HEATING CONTROL
HEATING TRANSFORMER
DAMPER OR CHANGEOVER VALVE
(POWERED IN HEAT)
DAMPER OR CHANGEOVER VALVE
COOL TRANSFORMER
GYWRHBORC
Tape Off
C
T
* If both Y and C wire are
present, tape off “C” wire.
These diagrams below are provided for new installations or unreferenced wires.
(POWERED IN COOL)
Tape Off **
G
F
F
G
Tape Off *
5
4
V
H
*
R
C
W
R
C
*
Y
C
H
R
Heating/Cooling Systems
4- or 5-Wire with One Transformer
(POWERED IN COOL)
B
V
R
C
W
R
Heating Systems
B
O
(Optional)
(Optional)
FAN RELAY
COOLING COMPRESSOR
HEATING CONTROL
HEATING TRANSFORMER
DAMPER OR CHANGEOVER VALVE
(POWERED IN HEAT)
DAMPER OR CHANGEOVER VALVE
COOL TRANSFORMER
GYWRHBORC
*
C
G
Y
F
* 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.
5- or 6-Wire with Two Transformers
FAN RELAY
COOLING COMPRESSOR
HEATING CONTROL
HEATING TRANSFORMER
DAMPER OR CHANGEOVER VALVE
(POWERED IN HEAT)
DAMPER OR CHANGEOVER VALVE
COOL TRANSFORMER
GYWRHBORC
Tape Of f
*
F
C
G
TC
* If both Y and C wire are
present, tape off “C” wire.
Cooling Systems
(POWERED IN COOL)
Tape Off
V
C
T
Heating/Cooling Systems
(POWERED IN COOL)
B
4
A
H
Y
W
R
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
REPLACE
REPLACE BATTERIES WHEN
INDICATOR APPEARS
OR ATLEAST
ONCE A YEAR.
R
C
R
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
alkaline batteries in the battery compartment.
Observe the polarity marking shown in the
compartment. Place body back on wall.
WARNING: Use Energizer®or DURACELL
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
V
C
R
R
O
(Optional)
(Optional)
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 8:00AM 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
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.
When replacing batteries, you have approximately 1
minute before programs are lost.
Heat Selector
®
or DURACELL®"AA" size
Battery
Compartment
®
Alkaline Batteries Only.
5/2 MIN
ON/OFF
24/12H
C/F