Lux Products | TX500U | Instruction manual | Lux Products TX500U Instruction Manual

Lux Products TX500U Instruction Manual
TX500U
SMART TEMP ® UNIVERSAL
5/2-DAY PROGRAMMABLE THERMOSTAT
(FOR BOTH CONVENTIONAL AND HEAT PUMP SYSTEMS)
I N S TA L L AT I O N A N D O P E R AT I N G I N S T R U C T I O N S
52105
IMPORTANT!
• Please read all of these instructions carefully before beginning
installation.
• Label every wire terminal designation on your existing thermostat
wiring before removing your old thermostat.
• Ignore the color of the wires since they may not comply with any
standard. Please connect wires using the terminal letter
designations.
Thank you for your confidence in our product. To obtain the best results
from your investment, please read and follow the installation procedures
carefully, and one step at a time. This will save you time and minimize the
chance of damaging either the thermostat or possibly your heating and
cooling system. These instructions may contain information beyond that
which may be required for your particular installation.
SYSTEM COMPATIBILITY . . . . . . . . . 2
FEATURES . . . . . . . . . . . . . . . . . . . 3
TOOLS YOU MAY NEED . . . . . . . . . . . 3
MOUNTING LOCATION . . . . . . . . . . . 4
REMOVE OLD THERMOSTAT . . . . . . . 4
INSTALL THERMOSTAT BASE . . . . . . . 5
WIRING INFORMATION . . . . . . . . . . . 5
WIRING DIAGRAMS . . . . . . . . . . . . . 7
HARDWARE SETUP OPTIONS . . . . . . 16
COMPLETE THE INSTALL . . .
FRONT PANEL ITEMS . . . . .
OPERATING INSTRUCTIONS .
TEMPERATURE PROGRAMS .
ADVANCED FEATURES . . . .
BATTERY REPLACEMENT . . .
TECHNICAL ASSISTANCE . . .
LIMITED WARRANTY . . . . .
MERCURY NOTICE . . . . . . .
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.
© 2011 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED
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18
18
20
22
23
29
30
30
31
TX500U
Fan Mode
Switch
LCD Display Screen
FAN
AUTO
5:36FANP
TU
ON
DAY
72
˚F
HEAT
HEAT
74˚
F
ROOM
TEMPERATURE
SET
SET
Set Slide
Switch
RUN
DAY/TIME
TEMP PROG
AIR FILTER
HOLD
OFF
EMER
COOL
NEXT
System Mode
Switch
UP, DOWN and HOLD Buttons
SYSTEM COMPATIBILITY:
The electrical rating for this thermostat is 1.5 Amps per terminal, with a
maximum total combined load of 3.0A for all terminals combined.
COMPATIBLE WITH:
• Most 24-volt heating and cooling systems
• 1 or 2 stage Heat / 1 stage Cool: Gas, Oil or Electric systems
• 1 or 2 stage Heat / 1 stage Cool: Heat Pump systems
• 3-wire hydronic (hot water) zone valves
• Gas Millivolt heaters
NOT COMPATIBLE WITH:
• 120/240 VAC line-voltage systems (without a transformer), ask your LUX
dealer for thermostats to control these systems.
2
FEATURES:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1 or 2-Heat / 1-Cool, 5/2-day programming
Universal Compatibility for all system types
Weekdays and Weekends can be programmed separately
Exclusive LUX ® Speed Slide TM for easy programming
User-selectable periods per day (2 or 4)
User-selectable programmable or non-programmable operation
LuxLight ® EL (Electro-Luminescent) lighted display
Programmable air filter life timer
Keypad lockout for unauthorized users
Manual temperature hold
Temporary temperature override
Adjustable temperature differential / cycle-rate
Adjustable 2nd heat stage Offset setting
User temperature calibration
Adjustable heat/cool set temperature limit stops
Smart recovery
Dual-powered (battery and/or 24-volt system powered)
Battery-free memory storage
F/C temperature display
12/24-hour clock display
5/2-minute selectable time delay for equipment protection
TOOLS YOU MAY NEED:
•
•
•
•
Screwdrivers
Wire Stripper
Wire Cutter
Drill with assorted drill bits (new installations only)
3
MOUNTING LOCATION:
On replacement installations, mount the new thermostat in place of the old
one unless the conditions listed below suggest otherwise. On new
installations, please follow these general guidelines:
1. Mount the thermostat on an inside wall, about 5 ft. (1.5m) above the floor.
2. Do not locate the thermostat where air circulation is poor such as in a
corner, alcove, or behind a door that is normally left open.
3. Do not locate the thermostat where unusual heating or cooling conditions
may be present, such as: direct sunlight, above a lamp, television, or
radiator, or on a wall next to an exterior door or window.
4. Do not locate in a damp environment, as this can lead to corrosion that
may shorten thermostat life.
5. If painting or construction work is still ongoing, cover the thermostat
completely or wait until this work is complete before installation.
WARNING:
All wiring must conform to the local codes and ordinances that are in your
particular location.
REMOVE OLD THERMOSTAT:
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 front portion of your old thermostat to
expose the wiring connections.
OFF
3. Write down the letters printed near each wire
terminal that is used, and also the color of each
wire that is connected to it. Self-adhesive wire
labels are also enclosed.
4. Carefully remove the wires one at a time, and bend them in a manner so
that they do not fall back inside the wall. Do not allow bare wire ends to
touch each other.
5. Loosen the mounting screws for the old thermostat and carefully remove
it from the wall.
4
INSTALL THERMOSTAT BASE:
Large Indentation:
Front Housing Release
Small Indentation:
Door Release
THERMOSTAT TOP VIEW
1. Strip wire insulation leaving only 3/8 in. (9.5mm) bare wire ends, and
clean off any corrosion present.
2. Fill the wall opening with non-combustible insulation to prevent drafts
from affecting the thermostat’s normal operation.
3. Route the wires through the opening in the new thermostat base plate, and
hold the base against the wall. Try to line up the screw holes from the
prior thermostat, and install the mounting screws.
4. If the previous holes cannot be used, hold the thermostat base against the
wall so that it appears straight and level (position the base for best
appearance) and mark for the new screw holes. Attach the base to the
wall using the screws provided (use the supplied plastic anchors if needed
when mounting to a soft material such as drywall).
WIRING INFORMATION:
CONNECTING THE WIRES:
When attaching the wires to the thermostat, please ensure that the bare wire
ends are held ALL the way into the terminal block while the screw is being
tightened.
5
WIRING DIAGRAM NOTES:
(Important, please read all notes before connecting wires)
• If the information provided in the following wiring diagrams does not
clearly represent or match your system, please refer to the “TECHNICAL
ASSISTANCE” section of this manual, and contact us before removing any
of your existing thermostat wiring.
• All of the dashed wires shown in the wiring diagrams are either optional,
or their usage depends upon your specific system type or brand. For
example: Diagram #1 shows the fan wire as optional. If your system does
not have a fan, than this terminal will not be used.
• Terminal letters shown in black represent typical wiring applications.
Depending upon the brand of your specific system or thermostat, your
terminal letters may not match exactly. Terminal letters shown in gray
represent other possible wiring designations that you might see on your
existing thermostat terminals.
• The optional “C” terminal is used for powering the thermostat by the 24volt system, using the System Common wire. This can be used alone, or
in addition to installing batteries as a backup. NOTE: connecting the
System Common wire to the thermostat is not necessary for heating and
cooling to function properly.
• If your old thermostat has both a “Y” and “C” wire both present, then “C”
is most likely a System Common wire.
• For Heat Pump systems, you will use either the “O” terminal or the “B”
terminal on this thermostat, but not both. If your old thermostat has both
an “O” and a “B” wire present, then “B” is likely a System Common wire
and may be connected to the “C” terminal. Connecting a System Common
wire to this thermostat’s “B” terminal may damage the thermostat, and
also your heating and cooling system.
• Some Heat Pump systems have a wire for AUX electric heat (usually W2),
and also a separate wire for Emergency electric heat (usually E). This
thermostat uses the W2 terminal for both AUX and Emergency Heat. Tape
off your “E” wire, and confirm that all components function without it.
• If replacing an old thermostat that has a mechanical clock, there may be
two wires labeled as “C” for the clock power. Tape off these wires and do
not connect them to the “C” terminal of this thermostat.
6
WIRING DIAGRAMS:
DIAGRAM
SYSTEM TYPE / DESCRIPTION
#1
CONVENTIONAL:
HEATING .............................................8
1-STAGE OR 2-STAGE
2, 3, 4, 5 WIRES
#2
CONVENTIONAL:
HEATING .............................................9
3-WIRE ZONE VALVE
3, 4 WIRES
#3
CONVENTIONAL:
COOLING............................................10
1-STAGE
3, 4 WIRES
#4
CONVENTIONAL:
HEATING AND COOLING ...........................11
1-STAGE HEAT
4, 5 WIRES
#5
CONVENTIONAL:
HEATING AND COOLING ...........................12
2-STAGE HEAT
5, 6 WIRES
#6
CONVENTIONAL:
HEATING AND COOLING ...........................13
TWO-TRANSFORMERS
5, 6 WIRES
#7
HEAT PUMP:
HEATING AND COOLING ...........................14
SINGLE-STAGE ONLY
4, 5 WIRES
#8
HEAT PUMP:
HEATING AND COOLING ...........................15
WITH AUX / EMERGENCY HEAT
5, 6 WIRES
7
PAGE #
#1
1-STAGE OR 2-STAGE, HEATING ONLY
(INCLUDING MILLIVOLT) (2-WIRE HEAT USE “RH” & “W1”)
2, 3, 4, 5 WIRES
Factory RH-RC Jumper Wire Installed
O
B
FAN WIRE
MAY NOT BE
PRESENT IN
ALL SYSTEMS
G
Y
RC
RH
W1
A
W2
C
C
R
W
F
RH
W1
X
V
4
B*
8
G
O
P
T
I
O
N
A
L
SYSTEM COMMON
FAN
W2
SYSTEM 24V
TRANSFORMER
STAGE
1
STAGE
2
HEATER
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
#2
HOT WATER HEATING ONLY
(WITH A 3-WIRE ZONE VALVE)
3, 4 WIRES
Factory RH-RC Jumper Wire Installed
O
B
G
Y
RC
RH
W1
A
W2
A
C
C
9
R
W
RH
W1
X
V
4
B*
O
P
T
I
O
N
A
L
SYSTEM COMMON
SYSTEM 24V
TRANSFORMER
OPEN
CLOSE
3-WIRE ZONE VALVE
OPEN = Heat On
CLOSE = Heat Off
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
3, 4 WIRES
#3
1-STAGE, COOLING ONLY
Factory RH-RC Jumper Wire Installed
O
B
G
Y
RC
RH
W1
A
W2
C
Y
R
C
F
Y1
RC
X
6
V
B*
10
G
O
P
T
I
O
N
A
L
SYSTEM COMMON
FAN
SYSTEM 24V
TRANSFORMER
AIR
CONDITIONER
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
#4
CONVENTIONAL (NON HEAT PUMP)
1-STAGE HEATING AND 1-STAGE COOLING
4, 5 WIRES
Factory RH-RC Jumper Wire Installed
O
B
G
Y
RC
RH
W1
A
W2
C
Y
R
W
C
F
Y1
RH
W1
X
6
RC
4
B*
11
G
V
O
P
T
I
O
N
A
L
SYSTEM COMMON
FAN
AIR
CONDITIONER
SYSTEM 24V
TRANSFORMER
HEATER
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
#5
CONVENTIONAL (NON HEAT PUMP)
2-STAGE HEATING AND 1-STAGE COOLING
5, 6 WIRES
Factory RH-RC Jumper Wire Installed
O
B
G
Y
RC
RH
W1
A
W2
C
C
Y
R
W
F
Y1
RH
W1
X
6
RC
4
B*
12
G
W2
V
O
P
T
I
O
N
A
L
SYSTEM COMMON
FAN
AIR
CONDITIONER
SYSTEM 24V
TRANSFORMER
STAGE
1
STAGE
2
HEATER
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
#6
1-STAGE HEATING AND 1-STAGE COOLING
WITH TWO SEPARATE 24V TRANSFORMERS
5, 6 WIRES
Factory RH-RC Jumper Wire REMOVED
O
B
G
Y
RC
RH
W1
A
W2
C
Y
RC
RH
W
C
F
Y1
R
R
W1
X
6
V
V
4
B*
13
G
O
P
T
I
O
N
A
L
SYSTEM COMMON
FAN
AIR
CONDITIONER
COOL 24V
TRANSFORMER
HEAT 24V
TRANSFORMER
HEATER
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
SINGLE-STAGE HEAT PUMP SYSTEM
WITH NO AUX OR EMERGENCY HEAT
4, 5 WIRES
** Use “O” or “B”
Terminals, Never Both
#7
CUSTOMER INSTALLED Y-W1 Jumper Wire
Factory RH-RC Jumper Wire Installed
O
B
O
G
Y
RC
RH
W1
A
W2
Y
R
C
F
Y1
RC
X
6
V
B*
14
G
O
P
T
I
O
N
A
L
SYSTEM COMMON
REVERSING
VALVE
C
FAN
SYSTEM 24V
TRANSFORMER
HEAT PUMP
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
#8
2-HEAT / 1-COOL, HEAT PUMP SYSTEM
WITH AUX AND EMERGENCY HEAT
5, 6 WIRES
** Use “O” or “B”
Terminals, Never Both
CUSTOMER INSTALLED Y-W1 Jumper Wire
Factory RH-RC Jumper Wire Installed
O
B
G
O
Y
RC
RH
W1
A
W2
C
15
G
Y
R
W2
C
F
Y1
RC
W3
X
6
V
W
B*
O
P
T
I
O
N
A
L
SYSTEM COMMON
REVERSING
VALVE
FAN
SYSTEM 24V
TRANSFORMER
HEAT PUMP
AUX / EMERG.
HEAT
NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC
HARDWARE SETUP OPTIONS:
On the thermostat’s circuit board, there is a row of DIP switches, labeled #1
through #8. The position of these switches will change how the thermostat
operates, and also how information is conveyed to you on the LCD display
screen. If you make any changes to these options, the changes are not
recognized unless you either: change the position of the HEAT/OFF/COOL
mode switch, or press the “HW RST” (Hardware Reset) button on the circuit
board. The use of this button is further described in the “ADVANCED
FEATURES” section of this manual.
These option switches are very small and should be moved carefully using
objects such as: eyeglass screwdriver, fine-point pen, toothpick, or similar.
The listing below describes the available choices for each option switch:
ON
1
2
3
4
5
6
7
8
SWITCH #1 (SYSTEM): [OFF/DOWN = FURN, default] This setting is used for
the majority of all heating systems that are not heat pumps. Examples for
this setting would be: natural gas furnace, hot water baseboard heat, and oil
heat. [ON/UP = HP] Use this setting if you have a heat pump unit (which
looks just like an outside air conditioning unit, but is used for both cooing
and heating).
SWITCH #2 (TYPE): [OFF/DOWN = PROG, default] The thermostat controls
the room temperature by following temperature program periods that you set
up based upon your daily routine. [ON/UP = MAN] The thermostat operates
manually just like a mechanical or non-programmable model. This method
of operation is very basic and only shows the room temperature and set
temperature; there are no temperature programs, days of the week, or clock
times.
16
SWITCH #3 (PERIODS): [OFF/DOWN = 4, default] The thermostat uses four
temperature program periods in both heating and cooling (MORN, DAY, EVE,
and NITE). Each period has a separate start time and a set temperature.
[ON/UP = 2] The thermostat operates in the same manner as above, however
there are only two temperature program periods for heating and cooling
(DAY and NITE). This may be more convenient if you are typically home
during the day, and only need the set temperature to be different while you
are sleeping.
SWITCH #4 (SCALE): [OFF/DOWN = F, default] All temperature values are
displayed using the Fahrenheit scale. [ON/UP = C] This setting displays all
temperature values using the Celsius scale.
SWITCH #5 (TIME): [OFF/DOWN = 12 HR, default] This setting displays the
clock times and temperature program period start time values on the screen
using US standard AM and PM values. [ON/UP = 24 HR] This setting
displays the clock and temperature program period start time values on the
screen using the 24 HR military-time format (17:30 hours, 22:00 hours,
without using AM/PM).
SWITCH #6 (DELAY): [OFF/DOWN = 5 MIN, default] This sets the minimum
length of time that Heat or Cool must remain either On or Off, before it will
automatically switch to the alternate On or Off state. This internal delay
prevents rapid cycling of your system and provides equipment protection
particularly for cooling units. The 5-minute setting is fine for most
applications. [ON/UP = 2 MIN] If you feel that your system may need to
cycle more frequently than the thermostat is allowing, then you may use the
2-minute setting.
SWITCH #7 (RECOVERY): [OFF/DOWN = DISABLE, default] The Early
Recovery feature affects how the thermostat transitions from an energy
saving setback (DAY and NITE) program period, to a comfort (MORN and
EVE) program period temperature, when it is following the daily temperature
programs. When this is disabled, the thermostat makes a set temperature
change at the beginning of an upcoming period's start time. [ON/UP =
ENABLE] The Early Recovery feature will calculate the capability of your
system and turn on the heating or cooling early so that the temperature in
your home reaches the desired set point as close as possible to the start of
the period. During the time that the thermostat is performing a recovery, the
word “RECOV.” will be shown in the display screen.
17
SWITCH #8 (BATTERY MONITOR): [OFF/DOWN = ON, default] This setting,
regularly monitors the battery level, and shows “LOW BAT” on the screen if
the batteries need to be replaced. Use this setting at all times when
batteries are present in the thermostat. [ON/UP = OFF] This setting only
applies if you are NOT physically using batteries in the thermostat, and are
powering the thermostat entirely from the system (“C” wire terminal).
GAS / ELEC SLIDE SWITCH (FAN OPERATION):
This switch is a physical component by itself on
the circuit board, and is much larger than the
BATTERY
DIP switches listed above. [DOWN = GAS,
default] This setting lets the heating system
control the blower fan automatically by itself.
ELEC
Systems that would typically use the “GAS”
setting would be: natural gas, propane, or oil
GAS
furnaces. This setting has no effect upon Cool
mode operation. [UP = ELEC/HP] This setting
runs the system’s blower fan when heat is called for, and is required for
heating systems that do not control their own fan while the thermostat is in
HEAT mode. Heat pump systems, and units with an electric heating element
typically require this setting.
COMPLETE THE INSTALL:
Once the hardware options are set, install two new Energizer ® or DURACELL ®
"AA" size alkaline batteries. Ensure that the batteries are installed in the
proper direction as per the markings shown in the battery tray. If the
batteries were already installed before changing the hardware setup options,
change the position of the HEAT/OFF/COOL System Mode switch to accept
the new hardware option switch settings.
FRONT PANEL ITEMS:
These items below are all located behind the door on the front of the
thermostat. To open the door, pull outwards using the small indentation in
the center of the top edge of the thermostat housing.
HEAT / OFF / COOL, SYSTEM MODE SWITCH: Set this switch to HEAT to
control your heating system, and COOL to control your cooling system. The
OFF position will disable both the heating and cooling units.
18
AUTO / ON, FAN MODE SWITCH: When this switch is in AUTO, the blower fan
(if present in your system) will automatically cycle on and off by itself while
heating or cooling is running. When in the ON position, the blower fan will
run constantly with or without a demand for heating or cooling, even when
the System Mode switch is in the OFF position.
NOTE: The Fan Mode switch only works if your system provides a wire for
the thermostat’s “G” wire terminal, to control a blower fan. The Fan Mode
switch has no effect in systems that do not have a blower fan (such as a hot
water radiator system).
MULTI-FUNCTION, SET SLIDE SWITCH: This switch provides an easy way to
quickly access the most commonly used thermostat settings. This switch
has 4 individual positions, and unless a specific setting is being adjusted,
this switch should always remain in the RUN position for the thermostat to
control the room temperature. The other Set Slide switch positions are
described in greater detail in the ADVANCED FEATURES section. NOTE: this
switch is only operable when the thermostat is in “Programmable” mode.
When the thermostat is used in “Manual” control mode, all 4 of the switch
positions will act like the RUN position, except the “AIR FILTER” position.
UP / DOWN BUTTONS: The UP and DOWN buttons are used to adjust any
item that can be changed by the user. Examples are the set temperatures,
clock times, and days of the week. In many cases, an item may be flashing if
it can currently be adjusted.
HOLD BUTTON: This button activates and deactivates the manual
Temperature Hold feature.
EMER BUTTON: When in Normal Run mode, the usage of this button varies
depending upon your specific system configuration. For heat pump systems,
pressing this button enables your emergency heat function, which is
described in greater detail in the OPERATING INSTRUCTIONS section. For
conventional systems, there is no such thing as emergency heat, so this
button will have no effect.
NEXT BUTTON: This button is mostly used while setting items such as
software options, and temperature program periods. When there are several
items on the screen that can be changed, usually one of them is flashing
indicating that it can be adjusted. Pressing the NEXT button will cycle
through which item is flashing.
19
OPERATING INSTRUCTIONS:
SET DAY AND TIME: Place the Set Slide Switch into the DAY/TIME position.
With the day flashing, press UP or DOWN to set the day of the week. Press
NEXT and the clock time will start flashing. Use UP or DOWN to set the
time, making sure the AM/PM indication is correct. Holding the UP or DOWN
buttons will make the clock digits scroll rapidly. Return the Set Slide switch
to the RUN position when finished.
HEATING AND COOLING: Basic operation of your heating or cooling system
can be obtained with the Set Slide Switch in the RUN position and choosing
either HEAT or COOL on the System Mode switch. The temperature can be
adjusted using the UP and DOWN buttons. When the thermostat is first
powered up, it will follow a default temperature routine that is preset from
the factory (shown below).
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 82 °F (28 °C)
6:00 PM 78 °F (26 °C)
10:00 PM 75 °F (24 °C)
EMERGENCY HEAT: (Heat Pump Configuration Only). While in normal Heat
mode with the Set Slide switch in the RUN position, one single press of the
EMER button will activate Emergency Heat mode. A single press again will
end Emergency Heat mode, and return back to normal Heat mode. While in
Emergency Heat mode, the word “EMER” will also be shown in the middle
portion of the display screen. If a power loss occurs while in Emergency
Heat mode, the thermostat will continue to remain in Emergency Heat mode
even after the power comes back on.
Emergency Heat mode will prevent the first stage of your heat pump system
from turning on, and use only the “W2” heat terminal (Auxiliary Heat) as the
primary heating source. This will not only prevent the heat pump from
wasting energy if outdoor temperatures are too low to support efficient
operation, but it could also prevent damage to the heat pump if outside
temperatures are below the manufacturer’s recommendations. As every heat
20
pump has different operating characteristics, you should refer to your heat
pump literature to determine when to disable the heat pump and run in
Emergency Heat mode.
LCD DISPLAY BACKLIGHT: The display screen is lighted to assist viewing at
nighttime, or in locations with low light levels. A press of any button on the
front panel will light the display for approximately 10 seconds. Any button
presses that occur while the light is on will reset the 10-second timer,
causing the screen to remain illuminated for an additional 10 seconds.
TEMPERATURE OVERRIDE: While in Program RUN mode, the set temperature
can be temporarily changed by pressing UP or DOWN. The set temperature
will return to the programmed value stored in memory when the start time of
the next upcoming program period is reached (Morn, Day, Eve, Nite). While
a Temporary Override is in effect, the word “OVERRIDE” will be shown in the
display screen. An Override may be cancelled moving the mode switch to
OFF, then back to HEAT or COOL.
MINIMUM RUN TIME: The thermostat has a default internal time delay of 5
minutes between load-on and load-off activations to prevent heating or
cooling system damage, which can occur from very frequent cycling. If
heating or cooling does not turn on right away with a manual change in set
temperature, please wait at least 5 minutes and the system should resume
normal operation.
TEMPERATURE HOLD: A Temperature Hold is used for maintaining a fixed set
temperature. Once a Hold is initiated, the thermostat will maintain the set
temperature indefinitely. A Hold may be used for days, weeks, or even
months at a time, as long as the thermostat has adequate power. To enter
Hold mode: press the HOLD button one time and the word “HOLD” will
appear in the display. To cancel a Hold, press the HOLD button one more
time. If a complete power failure occurs during a Temperature Hold, the
thermostat will continue to remain in Hold mode even after the power comes
back on. NOTE: If you plan to leave the thermostat in Hold mode for an
extended duration (unattended), it is advisable to install new Energizer ® or
DURACELL ® "AA" size alkaline batteries prior to leaving to ensure reliable
operation of your heating and cooling system.
STATIC NOTICE: This thermostat is protected against normal static electric
discharges, however to minimize the risk of damaging the unit in extremely
dry weather, please touch a grounded metal object before touching your
thermostat.
21
TEMPERATURE PROGRAMS:
By default, this thermostat has 4 separate program periods for both Heat and
Cool mode, they are: MORN, DAY, EVE, and NITE. Each period ends at the
start time of the following period. The heat programs are set in HEAT mode,
and the cool programs are set in COOL mode.
NOTE: If the thermostat is configured to use only 2 periods per day instead
of 4 (HARDWARE SETUP OPTIONS), the thermostat will only use the DAY
and NITE periods. The MORN and EVE periods will not be visible on the
screen.
SET TEMPERATURE PROGRAMS: Move the Set Slide switch to the TEMP
PROG position. Programming will start with all 5 weekdays, Monday
through Friday (all grouped together). Use the UP/DOWN buttons to adjust
the start time for the MORN period, then press the NEXT button to advance.
Use the UP/DOWN buttons to adjust the set temperature for the MORN
period, then press the NEXT button to advance. Now adjust the start time
and set temperature for the DAY period, pressing the NEXT button after each
to advance. Continue with these same steps to adjust the start times and set
temperatures for the EVE and NITE program periods.
When the NITE period is finished for the weekdays, the thermostat will
advance forward to the weekend program, with the MORN period start time
flashing. You will be setting the program periods for both Saturday and
Sunday (grouped together). Perform the same steps that you used for
setting the weekday periods, pressing the NEXT button to advance through
each flashing value. Return the Set Slide switch to the RUN position when
you are finished.
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ADVANCED FEATURES:
TEMPERATURE SWING AND OFFSET SETTING: A thermostat works by
turning your heating or cooling system on and off whenever the room
temperature varies from the desired set-point temperature. The amount of
this variation is called the swing. Generally your system should cycle on
about 3 to 6 times per hour. A smaller swing number makes the system
cycle more frequently, so the room temperature is more precise and
constant. A larger swing number will make the system remain on for a
longer duration each time and decreases the number of cycles per hour.
There is only one Swing setting, and this determines the cut-in and cut-out
points for both the first and second stages (if present), in both Heat mode
and Cool mode.
NOTE: The Swing and Offset settings need to be performed in a timely
manner, as the thermostat will timeout and automatically exit these
adjustment screens after approximately 10 seconds without a button press.
TO CHANGE THE SWING SETTING: Ensure that the System Mode switch is in
the OFF position and the Set Slide switch is in the RUN position. Press and
hold the HOLD button for at least 5 seconds. The words “SET” and “SWING”
will appear on the screen, along with a single flashing digit. Use the
UP/DOWN buttons to change the number value between 1 and 9 (0.25F to
2.25F, in 0.25F degree increments). Number 1 is the default setting. Press
the NEXT button to accept the swing setting and proceed to the OFFSET
setting.
TO CHANGE THE OFFSET: After the Swing value has been accepted, the
words “SET” and “OFFSET” will be shown on the screen, along with a
flashing digit. This setting is shown as a number of degrees, and is similar
in nature to the Swing however this only effects the operation of the second
(auxiliary) heating stage, if present. The setting range for Offset is from 0 to
9 degrees. When set to 0 degrees, the second heating stage is completely
disabled while in regular Heat mode (Emergency Heat mode will still function
for heat pump configurations). An Offset value from 1 to 9 degrees will
determine the number of degrees from the set point that will be required for
the second heating stage to turn on. This setting can be used to conserve
energy in situations where the second heating stage is more costly to
operate when compared to the first stage.
23
71
70
69
68
Cut-In / Cut-Out
(1st Stage)
70˚F Set
Temperature
Swing
Setting=
#2 (+/- 0.5˚F)
Offset **
Setting=
4˚F degrees
67
66
(2nd Stage) **
Cut-In / Cut-Out
65
DEGREES (F)
** = Only applies if a second
heat stage is present
24
TEMPERATURE CALIBRATION: The internal temperature sensor in this
thermostat is accurately calibrated at the factory, and in most cases
alterations to this setting should not be needed. 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 or synchronize this thermostat to another one
or more, if multiple thermostats are used in the same home.
NOTE: The Temperature Calibration setting need to be performed in a timely
manner, as the thermostat will timeout and automatically exit the adjustment
screen after approximately 10 seconds without a button press.
TO CHANGE THE TEMPERATURE CALIBRATION: Ensure that the System Mode
switch is in the OFF position and the Set Slide switch is in the RUN position.
Press and hold both the UP and DOWN buttons together for at least 5
seconds. The words “SET” and “CAL” will appear on the screen, along with a
single flashing temperature digit. Use the UP/DOWN buttons to change the
number of degrees of adjustment. 0° degrees is the default value, and
means no correction is being applied. Press the NEXT button to accept the
setting.
TEMPERATURE LIMIT STOPS: There are two independent set temperature
limit stops: a maximum heat set temperature, and a minimum cool set
temperature. These stops do not prevent a user from performing normal
actions like Temperature Override or Hold. The Heat Limit Stop prevents the
set temperature from being adjusted higher than the heat limit setting. The
Cool Limit Stop prevents the set temperature from being adjusted lower than
the cool limit setting. Each of these temperature stops is user adjustable in
one-degree increments, and these settings are protected by a selectable 2digit code to prevent unauthorized tampering. By default, this 2-digit code is
“00”, and the temperature stops can be used as-is with this code.
NOTE: The Temperature Limit Stop settings need to be performed in a timely
manner, as the thermostat will timeout and automatically exit the setting
screens after approximately 10 seconds without a button press.
TO SET THE HEAT LIMIT STOP: Place the System Mode switch in the OFF
position, and the Set Slide switch in the RUN position. Press and hold the
UP button while sliding the System Mode switch from OFF to HEAT. The
words “STOP” and “LOCK CODE” will appear on the screen, along with two
digits. Use the UP/DOWN buttons to select the proper code to access the
25
heat limit setting. Press the NEXT button to accept the setting. If the code
you tried was not correct, the thermostat will exit and return to the Normal
Run screen with no changes made. If the entered code is correct, the screen
will add the word “SET” and display the current heat set temperature limit.
Use the UP/DOWN buttons to adjust the maximum heat set temperature
value. Press the NEXT button to accept the setting and return to the Normal
Run screen in heat mode.
TO SET THE COOL LIMIT STOP: Place the System Mode switch in the OFF
position, and the Set Slide switch in the RUN position. Press and hold the
DOWN button while sliding the System Mode switch from OFF to COOL. The
words “STOP” and “LOCK CODE” will appear on the screen, along with two
digits. Use the UP/DOWN buttons to select the proper code to access the
cool limit setting. Press the NEXT button to accept the setting. If the code
you tried was not correct, the thermostat will exit and return to the Normal
Run screen with no changes made. If the entered code is correct, the screen
will add the word “SET” and display the current cool set temperature limit.
Use the UP/DOWN buttons to adjust the minimum cool set temperature
value. Press the NEXT button to accept the setting and return to the Normal
Run screen in cool mode.
TO CHANGE THE TEMPERATURE STOP LOCK CODE: Place the System Mode
switch in the OFF position, and the Set Slide switch in the RUN position.
Press and hold the NEXT button for at least 5 seconds. The words “STOP”
and “LOCK CODE” will appear on the screen, along with two digits. Use the
UP/DOWN buttons to enter the current code (“00” by default) and press the
NEXT button one time. The word “SET” will now be displayed. Use the
UP/DOWN buttons to choose a new 2-digit code between “00” and “99”.
Press the NEXT button to accept the setting. The screen will flash briefly to
confirm the code change, and return to the Normal Run screen in Off mode.
IF YOU FORGET YOUR TEMPERATURE STOP CODE: The code can be reset to
the factory default “00” by performing the following steps. Place the System
Mode switch in the OFF position, and the Set Slide switch in the RUN
position. Press and hold the NEXT and HOLD buttons together for at least
10 seconds. The screen will start flashing, and display words “SET”, “STOP”
and “LOCK CODE”, along with the new code of “00”. After a couple seconds,
the screen will automatically return to the Normal Run screen in Off mode.
26
KEYPAD LOCKOUT: You can lock the front panel buttons to prevent
unauthorized tampering of your thermostat settings.
NOTE: These keypad lock instructions need to be performed in a timely
manner. The 4-button sequence which locks the thermostat must be entered
within a 10-second timeframe, or the keypad lockout sequence will have to
be entered again from the beginning.
TO LOCK THE KEYPAD: Start with the System Mode switch in either the HEAT
or COOL positions, and the Set Slide switch in the RUN position.
Perform a single press of each button, in the following sequence: NEXT,
NEXT, NEXT, HOLD.
TO UNLOCK THE KEYPAD: Start with the System Mode switch in either the
HEAT or COOL positions, and the Set Slide switch in the RUN position.
Perform a single press of each button, in the following sequence: NEXT,
NEXT, NEXT, HOLD. The padlock should no longer be present, with the
thermostat now unlocked. If the padlock is still on the screen, please try to
enter the 4-button sequence again.
AIR FILTER MONITOR: In most systems that use a blower fan and air ducts,
there is an air filter that is either replaceable or requires cleaning. The filter
is usually located in the air handler, where the blower fan is. This
thermostat feature assists you with keeping track of proper maintenance
and/or periodic replacement intervals for your system’s filter.
The Air Filter Monitor counts the duration of filter usage that has occurred,
since the last time the Filter Monitor has been reset. This feature is for
information purposes only, and does not affect the operation of your heating
or cooling equipment, or the thermostat. When the filter usage duration has
completely expired, the word “FILTER” will flash on the screen.
TO SET THE AIR FILTER DURATION: Move the Set Slide switch to the “AIR
FILTER” position. The word “DAYS” will be shown on the screen, along with
the word “FILTER” and 2-3 characters at the top right corner of the display.
Press either of the UP/DOWN buttons to select the desired filter duration (in
days) from the following choices: OFF, 30, 60, 90, 120, 180, or 365. If the
filter duration value is set to “OFF”, then the Air Filter Monitor will be
completely disabled. Return the Set Slide switch to the RUN position when
you are finished.
27
TO RESET THE FILTER USAGE COUNTER: Move the Set Slide switch to the
“AIR FILTER” position. The three small digits at the top of the screen tell
you the quantity of filter days remaining. Press both the UP and DOWN
buttons together, and the usage counter will return to the beginning of the
value that it originally started counting from. Refer to the previous
paragraph, should you wish to change the starting value for the filter
monitor. Return the Set Slide switch to the RUN position when you are
finished.
HARDWARE RESET: The Hardware Reset button (labeled
“HW RST”) is a small round push button that is located
HW RST
towards the right side if the circuit board, just below the
battery holder. Pressing this button will cause the LCD
display screen to become fully populated, the heating and
cooling load relays to cycle off, read the position of the
Hardware Setup Option switches, and will perform an internal system check
of the thermostat components. If your thermostat appears to be acting in an
erratic manner, pressing the Hardware Reset button may remedy this
behavior. The temperature programs are not erased when a hardware reset
is performed, however the clock will have to be changed to match the
current day and time.
SOFTWARE RESET: The Software Reset button (labeled
“SW RST”) is a small round push button that is located
towards the left side if the circuit board, just below the
battery holder. A Software Reset is used to erase all
SW RST
heating and cooling temperature programs, and any useradjustable software values such as: Swing, Offset, and
Calibration, to their original factory default values. To perform a Software
Reset, press and hold the Software Reset button for at least 5 seconds. The
LCD display screen will become fully populated, than return to normal. The
thermostat will still retain the current day and time even after a Software
Reset has been performed.
28
COMPRESSOR PROTECTION BYPASS: This optional feature permits the
installer or service technician to temporarily disable the built in compressor
protection delays. This is most useful for diagnosing and testing the heating
and cooling systems after installation is complete, and should not be used
during normal operation. To activate this feature, press and hold both the
NEXT and HOLD buttons, while also perform a single press of the Hardware
Reset button (the LCD display screen will become fully populated). Continue
to hold the NEXT and HOLD buttons until the LCD display screen returns to
normal. All compressor protection delays (in all modes of operation) will be
disabled for 5 minutes. After the 5-minute duration has expired, the
thermostat will return to normal operation automatically.
BATTERY REPLACEMENT:
This thermostat is powered by two “AA” Alkaline batteries. The batteries
should be replaced AT LEAST once per year to ensure reliable operation (or
sooner, if the “LOW BATT” icon appears at the top of the display screen).
The batteries are located on the back of the thermostat, at the top of the
circuit board. The front portion of the thermostat can be removed from the
back half by pulling straight outwards on the top and bottom of the
thermostat housing, at the large indentations that are present in the center
of the top and bottom edges.
When installing new batteries, we recommend using only brand new
Energizer ® or DURACELL ® , “AA” size alkaline batteries. Please observe the
polarity markings shown in the battery compartment to ensure proper
installation. When finished, line up the front of the thermostat to the base,
and firmly press together to securely latch the front and back halves together
properly.
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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 website offers you
troubleshooting guides, 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.
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MERCURY WARNING AND RECYCLING NOTICE:
Mercury is considered to be a hazardous material. If this product is
replacing a thermostat that contains mercury in a sealed tube, contact your
local waste management authority for instructions regarding recycling and
proper disposal. It may be unlawful in your state to place it in the trash.
31
5:36FANP
TU
DAY
72
˚F
HEAT
74˚
F
ROOM
SET
HOLD
Mt. Laurel, New Jersey 08054, USA
http://www.luxproducts.com
856-234-8803
32
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