Lux Products TX500E - Manual

© 2 0 0 8 L U X P R O D U C T S C O R P O R A T I O N . A L L R I G H T S R E S E R V E D
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.
This thermostat can be used with most single stage 24 volt: gas, oil or electric
heating and/or cooling systems, single stage heat pumps, or gas Millivolt heating
systems. It cannot be used with 3-wire zone valves, 120 volt heating systems, or
multi-stage heat pumps. Ask your dealer for other LUX thermostats to control
those systems.
Please read ALL of these instructions carefully before beginning installation.
Save them for future reference.
TOOLS REQUIRED
•
#1 Phillips screwdriver
• Drill with 3/16 in. (4.8mm) bit
• Wire Stripper / Cutter
CAUTION: This thermostat is protected against normal minor static electric
discharges, however to minimize the risk of damaging the unit in extremely dry
weather, touch a grounded metal object before touching your 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 locate where air circulation is poor, such as in a corner or an alcove, or
behind an open door.
3. Do not install it where there are unusual heating conditions, such as: in direct
sunlight; near a lamp, television, radiator, register, or fireplace; near hot water
pipes in a wall; near a stove on the other side of a wall.
4. 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.
5. Do not locate in a damp area. This can lead to corrosion that may shorten
thermostat life.
6. If painting or construction work has yet to be completed, cover the unit
completely or do not install it.
WARNING:
• Read instructions carefully before removing any wires from your existing
thermostat.
• This thermostat should be limited to 1.5 amps per terminal, and a maximum
of 2 amps total; higher current than this may cause damage to the
thermostat.
• All wiring must conform to the local codes and ordinances that are in your
particular location.
REMOVAL OF OLD UNIT
1. Turn OFF the electricity to all heating and cooling components.
Do not turn the electricity back on until all work is completed.
2. Remove the cover and front portion of your old thermostat to
expose the wiring connections.
3. Write down the letters printed near each wire terminal that is
used, and the color of the wire that is connected to it. Using
the enclosed labels, attach a label to each of your wires so that
the letter matches the marking on your existing thermostat.
4. When they are all labeled, carefully remove the wires one at a time, making
sure that they do not fall back inside the wall. Do not allow any of the bare wire
ends to touch each other, or any parts on the thermostat.
5. Loosen all of the screws on the old thermostat and remove it from the wall.
MOUNTING
1. Strip insulation leaving 3/8 in. (9.5mm) bare wire ends and clean off any
corrosion.
2. Fill wall opening with non-combustible insulation to prevent drafts from
affecting the thermostat.
3. Remove the body from the thermostat’s base by pressing the thumb latch at the
bottom center of the unit and swinging the body away.
NOTE:
If you are mounting the base to 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, and insert the plastic anchors provided.
4. Hold the base against the wall. Route the wires through the hole 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.
CONNECTING THE WIRES
5. Wires must be trapped between the black clamps and the brass
terminals as shown here.
6. Being careful not to overighten them, securely tighten all of the
electrical terminal screws, including any unused ones.
NOTE:
When you are finished performing your installation and setup options, please
remove the thin plastic film that is protecting the LCD display screen on the front
of the thermostat. This plastic may or may not be present, and is evident by the
appearance of fake digits appearing on the display screen.
** Complete heating and/or cooling system wiring can be found in the WIRE
IDENTIFICATION AND WIRING SCHEMATICS section of this instruction sheet.
The schmatics shown provide component information for brand new instal-
lations or for unreferenced wires.
SYSTEM TYPE SETTING:
This setting tells the thermostat about the type of heating and cooling equipment
that it is controlling, so that the system is operated properly. There are two
operating modes based on your system type, “Furnace (Fn)” or “Heat Pump (HP)”.
If you have a Furnace, ensure this is set to "Fn". If you have a Heat Pump, ensure
this is set to "HP".
Install two new Energizer ® or DURACELL ® "AA" size alkaline batteries before
continuing further. Ensure that the batteries are installed in the proper direction as
per the markings shown in the battery tray. With the thermostat powered by
batteries, press and hold the HOLD button, and then press the Hardware Reset
button once on the back of the unit’s circuit board. Continue to hold the HOLD
button until “SYS” is shown on the LCD screen. Use the UP or DOWN buttons to
toggle between “Fn” and “HP” modes. When you are finished, press NEXT. This
setting is now complete, and will not change unless you adjust it again. This is
true even in the event of a power failure, or if a reset button is pressed.
NOTE:
All of the settings, options, and components listed in this section are located on
the rear of the thermostat, on the circuit board.
HARDWARE RESET
The hardware reset is a push button that is located on the right edge of the circuit
board, just above the battery location. This reset button is used by the thermostat
to reset the unit’s clock, and read the position of all of the option switches. When
any of the following items are changed, the hardware reset button must be pushed
for the change to be recognized. User temperature programs are not erased when
a hardware reset is performed.
HEAT FAN CONTROL
This setting defines the fan operation
while in Heat mode, and when the fan
is in Auto. This setting has no effect
while the thermostat is in Cool mode,
or if there is no blower fan connected
to the “G” wire terminal.
GAS: Use this setting if you have a Gas or Oil heating system. In the GAS setting,
the heating system itself controls the operation of the blower fan (if equipped).
ELECTRIC: Use this setting if you have a Heat Pump or Electric heating system. In
the ELEC setting, the heating system requires the thermostat to control the
operation of the blower fan.
The following option settings are all located within a group of small switches
labeled 1 through 3 as shown below, and are located in the center of the circuit
board.
TIME FORMAT
This determines how the thermostat displays the clock and all other times on the
screen. Switch position OFF is 12 HR, and ON is 24 HR.
TEMPERATURE SCALE
This determines how the thermostat displays all temperatures on the screen.
Switch position OFF is F°, and ON is C°.
FILTER DISPLAY
This determines how the remaining filter life will be displayed when the rotary dial
is turned to the AIR FILTER position. In the Percent (%) mode, the display will
count down the percentage of air filter life remaining before a filter change is
recommended. In the Days mode, the display will count down the number of
calendar days remaining before a filter change is recommended. Switch position
OFF is Percent mode, and ON is Days mode.
SOFTWARE RESET
The software reset is a small recessed push button that is located right above the
NEXT button. This button can be pushed with a pencil or the end of a paper clip.
This reset clears all of the heating and cooling programs, filter settings, and other
user changeable preferences to their default values. You should write down your
heating and cooling program times and temperatures prior to using the software
reset.
MODE SWITCHES
There are two mode switches on the front, a Temperature mode switch and a Fan
mode switch. The Temperature mode switch has three positions: HEAT, OFF, and
COOL. 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
the spring and fall or when the windows are open, you can set the switch OFF.
The Fan mode switch has two positions, AUTO and ON. Setting the Fan mode
switch to AUTO, automatically runs your system's blower fan as required only
during heating and cooling activation. Setting the Fan mode switch to ON, runs
your system’s fan continuously, even if heating or cooling is not needed, including
when the Temperature mode switch is in the OFF position to provide air circulation
only.
NOTE:
The Fan mode switch only works if your system provides a wire for the
thermostat’s “G” wire terminal.
PUSH BUTTONS
There are four primary push buttons on the front of the thermostat: The UP and
DOWN arrow keys, the NEXT button, and the HOLD button.
ROTARY DIAL
The LUX Speed Dial
® provides an easy way to quickly navigate between the
different programming areas. This rotary dial has five individual positions.
SET DAY/TIME
Rotate the dial to the SET DAY/TIME position. You should see the word SET appear
on the display, along with the clock and a day of the week that is flashing. With
the day flashing, press the UP button to advance the day to the desired day. Press
the NEXT button, this should cause the time to start flashing and the day to
remain on steady. Using either the UP or DOWN buttons, adjust the clock to the
desired time. The clock digits will increment rapidly if either the UP or DOWN
buttons are held in the pressed position.
HEATING AND COOLING
Basic operation of your heating or cooling system can be obtained by ensuring
that the rotary dial is in the RUN position, and simply moving the Temperature
mode switch to either the HEAT or COOL position. Prior to being set initially with
your custom temperature program, and also after a Software Reset, the thermostat
will follow the default Energy Star
® approved temperature routines that are preset
within the thermostat’s memory, as shown below.
MINIMUM RUN TIME DELAY
This is determined by the thermostat, and controls the minimum length of time
that the thermostat must remain with Heat or Cool either On or Off, before it will
automatically switch to the alternate On or Off state. This feature prevents rapid or
short cycling, and provides compressor protection for cooling equipment. The
time amount for this delay is fixed at 5 minutes between on or off load changes.
TEMPERATURE OVERRIDE
A Temperature Override occurs in Run mode, in either Heat or Cool, anytime the
user adjusts the set temperature to a value that differs from the stored program
temperature for that day and time. When the thermostat is in an Override, the
word Override will appear in the temperature area of the display. The thermostat
will maintain thermal control using this new set temperature, until the start of the
next program period time is reached. At the start of the next program period, the
set temperature will return to its programmed value. To enter an Override in either
Heat or Cool mode, push either the UP or DOWN button once and the set
temperature will begin to flash. Push either the UP or DOWN button to the new
desired set temperature value. An Override may be cancelled by rotating the dial,
changing the Temperature mode switch, or by initiating a Temperature Hold.
TEMPERATURE HOLD
A Temperature Hold is similar to an override, but is used for maintaining a
constant set temperature for a longer time duration. Once a Hold is initiated, the
thermostat will maintain the Hold set temperature indefinitely. A temperature hold
may be used for days, weeks, or even months at a time. To enter a Hold, push the
HOLD button once, and the word Hold will appear in the temperature portion of the
screen, along with the set temperature flashing. While the set temperature is
flashing, push either the UP or DOWN button to the new desired set temperature
value. To cancel a Hold, press and release the HOLD button once again, rotate the
dial, or change the Temperature mode switch.
AIR FILTER MONITOR
The Air Filter Monitor counts the number of days, and the amount of usage since
your furnace filter has been replaced. In Run mode, the CHANGE FILTER indicator
will appear when the remaining filter days have reached zero and the filter should
be changed. To set and use the Air Filter Monitor, turn the rotary dial to AIR
FILTER. Press NEXT and the Filter Days Left value will start flashing. Use the UP
or DOWN buttons to select the number of days of filter life that your filter is rated
for. Setting this value to OFF will disable the filter monitor. Return the dial to the
RUN position once you are finished setting the filter life. To monitor the Filter
Days Left or Filter Percent Left, turn the dial to the AIR FILTER position. The
amount of filter life remaining will be shown in the clock portion of the display
screen. Return the dial to the RUN position once you are finished viewing the filter
life remaining.
RESET FILTER COUNTER
Once you have replaced your filter, the filter life counter is reset back to its full
amount remaining value by turning the dial to AIR FILTER and pressing the UP and
DOWN buttons together at the same time. NOTE: The counter is also reset by
changing the filter setting value, as described above, to a different number of
days.
SWING SETTING
A thermostat works by turning your heating or cooling system on and off
whenever the room temperature varies from the set-point temperature. The
amount of this variation is called the “swing.” Your system should cycle on about
3 to 6 times per hour. A smaller swing number increases the number of cycles per
hour, so the room temperature is more precise and constant. A larger swing
number decreases the number of cycles per hour, but saves energy in most cases.
To change the Swing setting, turn the dial to RUN mode. Hold down the NEXT
button and push the HOLD button once, then let go of both. The words SWING and
SET will appear on the screen with a number. Use the UP/DOWN buttons to
change the number value between 1 and 9. Number 1 is the default setting. Press
the NEXT button to accept the setting and return to normal Run mode.
TEMPERATURE CALIBRATION
The internal temperature sensor in this thermostat is accurately calibrated at the
factory. The Temperature Calibration feature allows you to manually offset the
measured temperature by as much as plus or minus 5°F (3°C) degrees from its
original value. This feature can be useful to match this thermostat to another one
or more, if multiple thermostats are used in the same home. To change the
Temperature Calibration, turn the dial to RUN mode, and place the Temperature
mode switch in the OFF position. Hold down the UP button and push the DOWN
button once, then let go of both. The words CAL and SET will appear on the screen
with a number. Use the UP/DOWN buttons to change the number value between -
5°F (-3°C) and +5°F (+3°C) degrees. 0 degrees of correction is the default setting.
Press the NEXT button to accept the setting and return to Run mode.
KEYLOCK
To prevent tampering with any of your settings or temperatures, most of the front
panel buttons can be locked out by pressing the following four-button sequence:
NEXT, NEXT, NEXT, HOLD. This sequence of keys will lock and also unlock these
items: UP, DOWN, NEXT, HOLD, the Rotary Dial, and the Software Reset button.
Neither of the Mode slide switches are locked
out. When the Keylock is activated, a padlock
icon will be visible in the area above the clock
as shown below.
NOTE:
The Keylock will be disabled if the Hardware
Reset button is pressed.
For all of the programming areas that are described below, this thermostat
provides four independent periods per day for Heat mode and Cool mode, they are:
MORN, DAY, EVE, and NITE. Each period ends at the start time of the following
period. The programs for each Temperature mode are programmed separately.
When you perform a Software Reset, an Energy Star
® approved program is
inserted into all of the program periods. You can use these default programs or
alter any portion of them to suit your own preferences. When setting the program
items, the value that is flashing is the item that you can change at that time.
SET WEEKDAY PROGRAM
Select either HEAT or COOL with the Temperature mode switch. Rotate the dial to
WEEKDAY PROGRAM. You will be programming all five weekdays at the same
time. The first period is MORN. Using the UP and DOWN buttons, set the start
time for this period, and then push the NEXT button to proceed. Now set the
desired set temperature for the MORN period using the UP and DOWN buttons,
and push NEXT to proceed. Now set the start time and set temperature for the
DAY period, pushing NEXT after each to advance. Continue with these same steps
to set the start time and set temperature for the EVE, and NITE program periods.
When you are finished setting all four periods, you may continue pushing the
NEXT button through all four periods to review your entries, or turn the dial to
RUN if you are finished. These same programming steps for all four periods must
be performed in both Heat and Cool Temperature modes independently.
SET WEEKEND PROGRAM
Turn the dial to WEEKEND PROGRAM. You will be programming both Saturday and
Sunday at the same time. You will begin with the start time of the MORN period,
and use the same procedures that were performed while setting the Weekday
Program periods, using the NEXT button to advance through the values. Return
the dial to the RUN position when you are finished.
This thermostat is powered by two “AA” alkaline batteries. The batteries should be
replaced AT LEAST once per year, or sooner if the LOW BAT battery symbol
appears in the lower left portion of the display
screen as shown below.
To replace the batteries in the thermostat,
remove the thermostat’s body from the base
plate attached to the wall by pressing the thumb
latch at the bottom center of the unit and
swinging the body towards you, up and away
from the base. Remove the used batteries from
the battery tray and discard appropriately.
Install two new Energizer ® or DURACELL ® , “AA” size alkaline batteries into the
battery tray. Observe the polarity markings shown in the battery compartment to
ensure proper installation. When finished, hang the top of the unit by the tabs at
the top corners of the base, then snap the bottom of the unit into place. Do not
use unnecessary force. If the body does not snap into place easily, remove the
body, re-hang it from the tabs and try again.
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.
Limited Warranty: If this unit fails because of defects in materials or workmanship
within three years of the 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 three
years from the 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 location from which the
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. and Canada only.
TX500E Programmable Thermostat
N E X T
H O L D
WEEKEND PROGRAM WEEKDAY PROGRAM
SET DAY/TIME
R U N
AIR FILTER
R E S E T
FA N T E M E R AT U R E
A U T O
O N
H E AT
O F F
C O O L
5 : 36 72 HEAT
T U
D AY
F AN PM
LUX LUX TX500E
Set Temperature Buttons
Temperature
Mode Switch
Fan Mode
Switch
Software
Reset Button
Quick Reference
Door Instructions
LCD - Liquid Crystal Display
LUX
Speed
Dial
®
OFF
G A S ELECTRIC
J P 1
FA N
ON 123
T U
D AY
5 : 36
PM
T U
D AY
LOW BAT
LOW BAT
PERIOD
MORN
DAY
EVE
NITE
HEAT MODE
6:00 AM 70 °F (21 °C)
8:00 AM 62 °F (17 °C)
6:00 PM 70 °F (21 °C)
10:00 PM 62 °F (17 °C)
COOL MODE
6:00 AM 78 °F (26 °C)
8:00 AM 85 °F (29 °C)
6:00 PM 78 °F (26 °C)
10:00 PM 82 °F (28 °C)
52073
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.
Mt. Laurel, New Jersey 08054, USA
http://www.luxproducts.com
INSTALLATION AND
OPERATING INSTRUCTIONS
COMPATIBILITY
INSTALLATION
FRONT PANEL ITEMS
PROGRAMMING
BATTERIES AND MAINTENANCE
TECHNICAL ASSISTANCE
WARRANTY
ADVANCED FEATURES
OPERATING INSTRUCTIONS
WIRING INFORMATION
FEATURES
SETUP OPTIONS
• Small elegant design
• Exclusive LUX Speed Dial ®
• Air Filter Monitor
• 5-2 Day Programming
• Energy Star Compliant
• 4 Periods Per Day
• Battery Free Memory Storage
• Temporary Temperature Override
• Temperature Hold
• Keyboard Lockout
• F/C Temperature Display
• 12/24 Hr Clock Display
• Adjustable Temperature Differential /
Cycle Rate
• User Temperature Offset /
Calibration
• 5 Minute Minimum Run/Off Time For
Short Cycle and Compressor
Protection