LUX TX100E - Thermostat Manual

INTRODUCTION

Use Energizer^® or DURACELL^® Alkaline Batteries Only.
Energizer^® is a registered trademark of Eveready Battery Company, Inc.
DURACELL^® is a registered trademark of The Procter & Gamble Company

• Label every wire terminal designation on your existing thermostat wiring before removingyour old thermostat.
• Ignore the color of the wires since they may not comply with any standard. Pleaseconnect wires using the terminal letter designations.

SYSTEM COMPATIBILITY

This thermostat can be used with most 24 volt: gas, oil, Millivolt, electric heating and cooling systems, including single-stage heat pumps (WITHOUT auxiliary or emergency heat element).
It cannot be used with: 120/240 volt heating elements (without a transformer), or on heat pump systems that have more than one heating or cooling stage. Ask your dealer for other LUX thermostats to control those systems.

CAUTIONS AND WARNINGS

• The thermostat requires batteries to operate and failure or sub-standard performance of the batteriesmay impair or prevent the correct operation of the thermostat. Use Duracell^® or Energizer^® alkaline batteries ONLY for all LUX thermostats requiring batteries. BE SURE TO CHANGE THE BATTERIES AT LEAST ONCE A YEAR, or whenever you see the LO BATT indication on the screen. Failure to follow these battery instructions could result in property damage and/or personal injury.
• The electrical rating for this thermostat is 1.5 Amps per terminal, with a maximum total load of 2.0Afor all terminals combined.
• The thermostat contains parts that may wear out through use and are susceptible to failure if over-loaded or used in a manner other than as indicated in the documentation.
• Check unoccupied residences regularly to ensure that all systems are operating properly.
• Check any heating/air-conditioning system including this product before operation and at regularintervals.
• Electrical interference, static electricity, failure or substandard performance of batteries, wiringdefects in the installation and/or characteristics of the connected HVAC devices may prevent the system from regulating heating and cooling as anticipated.
• The thermostat is a sensitive device and dropping the product can cause damage to criticalcomponents. If the product is dropped or shaken violently during transport or installation then it should be replaced immediately.
• Persons with physical or mental limitations may not be able to promptly respond to a malfunction ofthe heating/air-conditioning system.
• All residents should be made aware of the potential in any system for malfunctions that could causecontinuous heating or cooling and should be familiar with the operation and location of the heating/cooling appliance on/off switch.
• Read the instruction manual completely before installing the thermostat. A more detailed productmanual is available on our www.luxproducts.com website. You should consult a qualified HVAC technician or an electrician if you do not fully understand the installation instructions.

REMOVAL OF OLD THERMOSTAT

1. Turn OFF the electricity to all heating and cooling components. Do not turn the electricity back onuntil all work is completed.
2. Write down the letters printed near each wire terminal that is used, and also the color of each wirethat is connected to it. Self-adhesive wire labels are also enclosed.
3. Carefully remove the wires one at a time, and bend them in a manner so that they do not fall backinside the wall. Do not allow bare wire ends to touch each other.

INSTALLATION OF NEW THERMOSTAT

Use the wiring diagrams shown on the back of this installation sheet to find the closest match to your particular heating and/or cooling system. Please read ALL of the Wiring Diagram Notes that are shown above the connection diagrams, to avoid causing damage to your system or the new thermostat.

1. Strip wire insulation leaving only 3/8 in. (9.5mm) bare wire ends, and clean off any corrosionpresent.
2. Fill the wall opening with non-combustible insulation to prevent drafts from affecting thethermostat's normal operation.
3. Route the wires through the opening in the new thermostat base plate, and install the mountingscrews.
4. If the previous holes cannot be used, hold the thermostat base against the wall so that it appearsstraight 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).
5. When attaching the wires to the thermostat, please ensure that the bare wire ends are held ALL theway into the terminal block while the screw is being tightened, and be careful not to over tighten them, as they only need to be snug.

COMPLETE THE INSTALL

GAS / ELEC CIRCUIT BOARD OPTION ("G" TERMINAL FAN OPERATION): This setting is a plastic shorting cap called a jumper. This jumper must remain installed, and set to either GAS or ELECTRIC for your system to work properly. This setting changes how your system's blower fan (if applicable) is controlled while the thermostat is in HEAT mode, and the Fan switch is in the AUTO position. This setting does not affect the fan operation while the thermostat is in COOL mode.

When set to "GAS", the blower fan is controlled solely by the heating system itself. Systems that would typically use the "GAS" setting would be: natural gas, propane, or oil furnaces, and boilers.
NOTE: If your blower fan does not operate properly after installation, try moving the Gas / Electric option to the "Electric" setting.

When set to "ELEC", the blower fan is controlled directly by the thermostat. This setting is required for heating systems that do not control their own fan, such as HEAT PUMPS, and units that only have an electric-resistive heating element as the heat source.

B/O CIRCUIT BOARD OPTION (FOR HEAT PUMP APPLICATIONS): This setting is a plastic shorting cap which determines the operation of the shared B/O wire terminal connection. This jumper must remain installed for a Heat Pump system to be able to provide heating and cooling as needed, and the majority of heat pumps today use the default "O" setting. The symptoms that will occur if this setting is not correct will be: heating while in cool mode, and cooling while in heat mode.

When this is set to "O" (factory default), the shared B/O terminal will be turned on while in COOL mode, and off in HEAT mode.

When this is set to "B" (which is needed for some Rheem, Ruud, and Bard heat pumps), the shared B/O terminal will be turned on in HEAT mode, and off in COOL mode.

FRONT PANEL CONTROLS

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.

AUTO / ON, FAN MODE SWITCH: When in AUTO, the blower fan (if present in your system) will cycle on and off only while heating or cooling. In the ON position, the blower fan will run constantly at all times with or without a demand for heating or cooling.

SET BUTTON: This button is used to access the temperature program settings when in heat or cool mode, and for adjusting the day and clock while in off mode.

NEXT BUTTON: This is used when setting items such as software options, and temperature programs. When items on the screen are flashing during adjustments, pressing the NEXT button will cycle through which item is flashing.

HOLD BUTTON: This button activates and deactivates the manual Temperature Hold feature, which maintains a fixed set temperature indefinitely without following a program routine. This button is not used when ITEM #02 below is set to "3" for manual non-programmable.

UP / DOWN BUTTONS: The UP and DOWN buttons are used to control the set temperature, or adjust any other on-screen items. Typically, an item that is flashing can currently be adjusted.

SYSTEM CONFIGURATION AND SETUP OPTIONS:

INSTALL BATTERIES INTO THERMOSTAT: Install two brand new Energizer^® or DURACELL^® "AA" size alkaline (only) batteries, into the thermostat's battery compartment. Ensure the batteries are installed in the proper direction.

Setup options for how the thermostat will function, along with choosing your particular system type, are performed using a menu on the display screen.

TO ACCESS THE SETUP MENU: Move the System Mode switch into the OFF position, and then hold down the SET button for approximately 5 seconds until the screen changes. The menu will always start with item #01, and is advanced to each following item by a single press of the NEXT button. The options for each item are changed using the UP or DOWN buttons.

ITEM #01 (TEMPERATURE SCALE):

1. (default) Shows all temperature values in Fahrenheit.
2. Shows all temperature values in Celsius.

ITEM #02 (PROGRAMMING STYLE):

1. (default) 5/2-Day Programming. This style uses a weekday program routine for Monday, Tuesday, Wednesday, Thursday, Friday, and a separate weekend program routine for Saturday and Sunday.
2. 7-Day Programming. This style uses a separate program routine for each of the 7 days in the week. [
3. Manual Non-Programmable. In this setting, there are no program routines for the thermostat to follow and the temperature control will be set only by the UP and DOWN buttons on the front panel.

ITEM #03 (PERIOD QUANTITY):

1. (default) 4-Periods. Thermostat uses four periods per day (called MORN, DAY, EVE, and NITE).
2. 2-Periods. The thermostat uses only two periods per day (called DAY and NITE).

ITEM #04 (MAXIMUM HEAT SET TEMP LIMIT):

1. (default) Limit 90F (32C). The maximum heating set temperature is 90F (32C) degrees with no heat mode temperature restrictions.
2. Limit 80F (27C). The maximum heating set temperature is 80F (27C) degrees.
3. Limit 70F (21C). The maximum heating set temperature is 70F (21C) degrees.
4. Limit 60F (16C). The maximum heating set temperature is 60F (16C) degrees.

ITEM #05 (MINIMUM COOL SET TEMP LIMIT):

1. (default) Limit 45F (7C). The minimum cooling set temperature is 45F (7C) degrees with no cool mode temperature restrictions.
2. Limit 55F (13C). The maximum cooling set temperature is 55F (13C) degrees.
3. Limit 65F (18C). The maximum cooling set temperature is 65F (18C) degrees.
4. Limit 75F (24C). The maximum cooling set temperature is 75F (24C) degrees.

ITEM #06 (SYSTEM / EQUIPMENT TYPE):

1. (default) Fn=Furnace. This is for the majority of heating systems such as a natural gas furnace or hot water boiler, that are not Heat Pump systems.
2. HP=Heat Pump. Use this setting if you have a Heat Pump system (which uses the outdoor unit asthe primary heat source). The presence of either an "O" or "B" wire on your previous thermostat would typically indicate you have a heat pump system. This thermostat is NOT compatible with heat pumps which also have an electric heating element as a backup heat source (called Auxiliary / Emergency Heat).
   
   When set to "2" for HP, the circuit board Gas/Electric option must also be set to "ELEC", as described earlier in the "COMPLETE THE INSTALL" section.

ITEM #07 (DELAY TIME):

1. (default) 5 Minutes. Thermostat waits 5 minutes before turning the system back on after it was last run. The 5 minute setting is fine for most applications, and provides equipment protection by preventing rapid cycling.
2. Same operation as above, but reduced to 2 minutes between state changes if desired.

ITEM #08 (TEMPERATURE SWING):

1. (default) This is the tightest control, which is plus/minus 0.25F (0.14C) degrees from the target set temperature.
2. through 9. These alternate values make the temperature control wider with more variation. Each incremental setting number adds an additional 0.25F (0.14F) degrees onto the initial setting. [9] is the widest control setting, which is plus/minus 2.25F (1.25C) degrees from the set temperature.

ITEM #09 (TEMPERATURE CALIBRATION):

[0 (zero)] (default) At zero, there are no changes made to the base room temperature measurement. The adjustment is from as low as subtracting –5F (–3C) degrees from the room temperature, to as high as adding +5F (+3C) degrees to the room temperature. The internal temperature sensor is accurately calibrated at the factory, and in most cases this setting should not need to be altered.

SET DAY AND TIME

Move the System Mode switch into the OFF position, and press the SET button once. The Day on the top of the display should begin flashing, which can be adjusted using UP or DOWN. Press the NEXT button and the clock time should start flashing, which can be adjusted using UP or DOWN. Make sure the AM/PM indication shown is correct, and holding the UP or DOWN buttons will make the clock digits scroll rapidly. When complete, press the NEXT button to return to the normal operating screen.

DOWNLOAD FULL INSTRUCTION MANUAL FROM OUR WEBSITE:

This sheet contains basic installation and setup instructions. There are additional topics covered in greater detail, in the full version of the manual for this thermostat. The full PDF manual can be downloaded at http://www.luxproducts.com.
Click on SUPPORT, then INSTRUCTION MANUALS. Many thermostat models have lower case "revision" letters after the model name (i.e. TX1500Ua). Please choose the manual that exactly matches the model number shown on your particular thermostat.

KEYPAD LOCKOUT:

The front panel buttons can be locked out to prevent unauthorized tampering of the set temperature and other settings. Neither the System Mode or Fan Mode slide switches are locked out, and when the Keypad Lockout is active, there will be a padlock icon shown in the display screen.

To lock or unlock the keypad buttons, first select either HEAT or COOL on the System Mode switch, and press the following four-button sequence: NEXT, NEXT, NEXT, HOLD.

TEMPERATURE PROGRAMMING

By default, this thermostat has 4 separate program periods for both Heat and Cool modes, they are: MORN, DAY, EVE, and NITE. Each period ends at the start time of the next upcoming period. The Heat temperature programs are set while the mode switch is in the HEAT position, and the Cool temperature programs are set while the mode switch is in COOL.

NOTE: If the thermostat is configured to use only 2 periods per day (instead of the factory default of 4 periods per day), the thermostat will only use the DAY and NITE period designations. The MORN and EVE periods will not be used or visible on the screen.

TO SET A TEMPERATURE PROGRAM: Choose either HEAT or COOL mode, and press the SET button. Programming will start with PROG position. Use UP or DOWN to adjust the start time for the first period, and then press the NEXT button to advance. Use UP or DOWN to adjust the set temperature for the first period, and then press the NEXT button to advance. Now adjust the start time and set temperature for the second period, pressing NEXT after each item to advance. Continue with these same steps to adjust the start times and set temperatures for the third and fourth periods (if present).

When the last period is finished for each day (or group of days), the thermostat will advance forward into the next day (or group of days).

When you are complete, you can press the SET button to save your changes and return back to the normal run mode.

NOTE: If a temperature program routine is not desired, you may change ITEM #02 in the Setup Options to "3" for manual non-programmable.

BASIC HEATING AND COOLING OPERATION

Basic operation of your heating or cooling system can be obtained by selecting HEAT or COOL on the System Mode switch, and using UP or DOWN to adjust the temperature. To maintain a single fixed temperature, you can use the HOLD button. If there is a padlock present on the display screen, the keypad lockout feature is enabled (both of the mode slide switches are still functional).

WIRING DIAGRAM NOTES

2 / 3 / 4 WIRES CONVENTIONAL, NON HEAT PUMP 1-STAGE, HEAT ONLY (INCLUDING MILLIVOLT)

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC

2 / 3 / 4 WIRES CONVENTIONAL, NON HEAT PUMP 1-STAGE, COOL ONLY

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC

3 / 4 / 5 WIRES CONVENTIONAL, NON HEAT PUMP 1-STAGE HEAT AND 1-STAGE COOL

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC

4 / 5 / 6 WIRES CONVENTIONAL, NON HEAT PUMP 1-HEAT / 1-COOL, WITH TWO-TRANSFORMERS

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC

3 / 4 / 5 WIRES HEAT PUMP SYSTEMS 1-HEAT / 1-COOL ONLY, WITH NO AUXILIARY / EMERG. HEAT

* Heat-Pump: if "O" and "B" are both present, install old "B" wire onto "C" terminal.

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC

1. If the wiring diagrams do not clearly represent or match your system, please refer to "TECHNICALASSISTANCE" below, and contact us before removing any of your existing thermostat wires.
2. All of the DASHED wires shown in the wiring diagrams are either optional, or their usage dependsupon your specific system type (EXAMPLE: Diagram #1 shows the fan wire as optional. This does not infer that your system does not have a fan, only that there may not be a wire for it).
3. The terminal letters shown in black represent typical wiring usage. The terminal letters shown ingray represent other possible wiring letter designations that you might see on your particular brand and model of thermostat.
4. The optional "C" terminal is used for powering the thermostat by the 24 volts supplied by yourheating/cooling system, using the System Common wire. This can be used alone, or in addition to installing batteries as a backup. NOTE: when using batteries, connecting the System Common wire to the thermostat is not necessary for heating and cooling to function properly.
5. If your old thermostat has BOTH an "O" wire and a "B" wire present, then "B" is likely a System Common (power wire) and can either be connected to the "C" terminal, or taped off and unused. Connecting a System Common wire to this thermostat's "B/O" terminal will damage the thermostat, and also your heating and cooling system equipment.
6. If your existing thermostat connections contain a wire labeled as "W2", "AUX", "E", or "X2", thiswould indicate that you have additional heating stages present. This is a single-stage thermostat, and cannot accomodate any of these system components. You will need to select a different model.
7. If replacing an old thermostat that has a mechanical time clock on the front panel, there may be TWOwires labeled as "C" for the clock power. Do not connect either of them to this thermostat.

TECHNICAL ASSISTANCE

If you have any problems installing or using this thermostat, please carefully and thoroughly review the instruction manual. If you still require assistance, please contact our Technical Assistance department at 856-234-8803 during regular business hours between 8:00AM and 4:30PM Eastern 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.

http://www.luxproducts.com

Documents / Resources

References

• LUX Products - LUX Products

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