TX9100Ua SMART TEMP ® UNIVERSAL 7-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 52140 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.
CAUTIONS AND WARNINGS: • This thermostat requires batteries to operate and failure or sub-standard performance of the batteries may 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.
T X 910 0 Ua Fan Mode Switch LCD Display Screen FAN AUTO SET ON Set Slide Switch RUN DAY/TIME TEMP PROG SPEC PROG FILT / ENRGY TEMPERATURE HEAT OFF SETBACK HOLD COOL COPY/ EMER NEXT System Mode Switch UP / DOWN 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.
FEATURES: • • • • • • • • • • • • • • • • • • • • • • • • 1 or 2-Heat / 1 or 2-Cool, 7-day programming Universal Compatibility for all system types Each day of the week can be programmed separately Exclusive LUX ® Speed Slide T M for easy programming User-selectable periods per day (2 or 4) User-selectable programmable or non-programmable operation LuxLight ® EL (Electro-Luminescent) lighted display Energy usage monitor Special program feature Programmable air filter life timer Programmable keypad lockout
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.
INSTALL THERMOSTAT BASE: 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. Separate new thermostat housing using your thumb and index finger. Provide pressure in opposite directions to the release tabs on the top of the housing, in the directions shown in the diagram shown above. 4.
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.
WIRING DIAGRAMS: DIAGRAM SYSTEM TYPE / DESCRIPTION #1 CONVENTIONAL: HEATING ............................................................9 1-STAGE OR 2-STAGE 2, 3, 4, 5 WIRES #2 CONVENTIONAL: HEATING ..........................................................10 3-WIRE ZONE VALVE 3, 4 WIRES #3 CONVENTIONAL: COOLING ..........................................................11 1-STAGE OR 2-STAGE 3, 4, 5 WIRES #4 CONVENTIONAL: HEATING AND COOLING .....................................
C FAN SYSTEM 24V TRANSFORMER SYSTEM COMMON HEATER O P T I O N A L B* C 4 W2 W2 V STAGE 2 B X STAGE 1 O W1 Y2 RH W A F RH R RC G Y1 #1 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC FAN WIRE MAY NOT BE PRESENT IN ALL SYSTEMS G W1 1-STAGE OR 2-STAGE, HEATING ONLY (INCLUDING MILLIVOLT) (2-WIRE HEAT USE “RH” & “W1”) Factory RH-RC Jumper Wire Installed 2, 3, 4, 5 WIRES
Y1 RC A A SYSTEM 24V TRANSFORMER SYSTEM COMMON 4 W1 RH V W W1 R RH O CLOSE 3-WIRE ZONE VALVE OPEN Y2 HOT WATER HEATING ONLY (WITH A 3-WIRE ZONE VALVE) B OPEN = Heat On CLOSE = Heat Off W2 C O P T I O N A L B* X C #2 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC G Factory RH-RC Jumper Wire Installed 3, 4 WIRES
Y1 F W1 SYSTEM COMMON RH SYSTEM 24V TRANSFORMER V RC R RC A STAGE 1 STAGE 2 O AIR CONDITIONER Y2 Y2 B 1-STAGE OR 2-STAGE, COOLING ONLY W2 C O P T I O N A L B* X C #3 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC 6 Y Y1 G FAN G Factory RH-RC Jumper Wire Installed 3, 4, 5 WIRES
RC 6 O W2 C C SYSTEM 24V TRANSFORMER O P T I O N A L B* HEATER B 4 SYSTEM COMMON Y2 X A W1 W W1 #4 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC AIR CONDITIONER V RH R Y1 RH F RC Y Y1 CONVENTIONAL (NON HEAT PUMP) 1-STAGE HEATING AND 1-STAGE COOLING G FAN G Factory RH-RC Jumper Wire Installed 4, 5 WIRES
Y1 F RC R V RH RH 4 W1 W STAGE 2 Y2 Y2 AIR CONDITIONER STAGE 1 A O W2 W2 STAGE 2 HEATER STAGE 1 B X C O P T I O N A L B* C #5 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC SYSTEM 24V TRANSFORMER SYSTEM COMMON 6 Y Y1 G FAN G W1 CONVENTIONAL (NON HEAT PUMP) 2-STAGE HEATING AND 2-STAGE COOLING Factory RH-RC Jumper Wire Installed 4, 5, 6, 7 WIRES
V 6 V R RH RH HEATER W2 C C COOL 24V TRANSFORMER HEAT 24V TRANSFORMER B* B 4 O X SYSTEM COMMON Y2 W1 W A O P T I O N A L #6 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC AIR CONDITIONER R Y1 F RC RC Y Y1 G FAN G W1 CONVENTIONAL (NON HEAT PUMP) 1-STAGE HEATING AND 1-STAGE COOLING WITH TWO SEPARATE 24V TRANSFORMERS Factory RH-RC Jumper Wire REMOVED 5, 6 WIRES
Y1 F RH HEAT PUMP V RH RC R RC W1 O SYSTEM COMMON Y2 SYSTEM 24V TRANSFORMER A O REVERSING VALVE B W2 C X C O P T I O N A L B* ** Use “O” or “B” Terminals, Never Both #7 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC 6 Y Y1 G FAN G CUSTOMER INSTALLED Y1-W1 Jumper Wire SINGLE-STAGE HEAT PUMP SYSTEM WITH NO AUX OR EMERGENCY HEAT Factory RH-RC Jumper Wire Installed 4, 5 WIRES
Y1 F SYSTEM COMMON Y2 O O B W3 W2 W2 HEAT PUMP SYSTEM 24V TRANSFORMER REVERSING VALVE C B* X C AUX / EMERG.
COMPLETE THE INSTALL: 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. 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.
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, and is also used for activating and deactivating the Special Program feature.
ITEM #03 (THERMOSTAT TYPE): [PROGRAMMABLE, default] Use this setting for following a daily program routine. [MANUAL] This setting omits the program routine and operates as a manual style non-programmable thermostat. This is very basic and only shows the room temperature and set temperature on the screen, with no clock. ITEM #04 (PERIOD QUANTITY): [4P, default] Thermostat uses four periods per day (called MORN, DAY, EVE, and NITE). [2P] The thermostat uses two periods per day (called DAY and NITE).
ITEM #08 (DELAY TIME): [5, default] Thermostat waits 5 minutes before turning the system back on after it was last run. This internal delay prevents rapid cycling and provides equipment protection. The 5 minute setting is fine for most applications. [2] Same operation as above but reduced to 2 minutes between state changes. ITEM #09, #10, #11 (SYSTEM CYCLE DURATION): These three settings will control how frequently your heating/cooling system will be allowed to cycle ON during room temperature control.
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.
prevent damage to the heat pump if outside temperatures are below the manufacturer’s recommendations. As every heat 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.
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.
may continue to perform short single presses of the COPY/EMER button to proceed with copying to the remaining days, one after the other (specific days may be skipped by pressing the UP button to advance past them when they are flashing in the “copy to” location). To exit the Copy feature, and return to the regular temperature program screen, press and hold the NEXT button for more than 2 seconds. Return the Set Slide Switch to the RUN position when you are finished.
TO START A SETBACK: Ensure that the System Mode switch is in either the Heat or Cool position, and that the Set Slider is in the RUN position. Press and hold the SETBACK button for at least 2 seconds. The screen will change and show the words “HOURS LEFT” and “OVERRIDE”, along with two digits. Use the UP/DOWN buttons to set the duration for how long you would like to maintain a fixed set temperature (from 1 to 12 hours).
TO SET THE SPECIAL PROGRAM VALUES: Move the Set Slide switch to the SPEC PROG position. The screen will display “S-PROG”. 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.
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 “CODE” and “T–STOP” will appear at the top of the screen, along with two digits. Use the UP/DOWN buttons to select the proper code to access the heat limit setting. Press the NEXT button to accept the setting.
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, as the thermostat will timeout and automatically exit the keypad lock screens and return to the Normal Run screen after approximately 10 seconds without a button press. 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.
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.
Usage, and the Total Cumulative Usage. NOTE: For the Total Cumulative Usage, the timer will record up to a maximum of 99 hours and 59 minutes, then the display will change to “HHHH” for hours only, without the colon in the center. Return the Set Slide switch to the RUN position when you are finished. TO RESET THE HEAT ENERGY USAGE: While viewing the Total Usage value, press and hold the HOLD button for at least 4 seconds. The usage should now be displayed as “00:00”.
SOFTWARE RESET: A Software Reset is used to erase ALL heating and cooling temperature programs, and to return all user-adjustable software settings back to their original factory default values. To perform a Software Reset, first ensure that the thermostat’s Keypad Lockout is not enabled and then move the System Mode switch to the OFF position. Press and hold the UP, DOWN, and NEXT buttons all together for at least 5 seconds.
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 phrase “LO BATT” appears in the display screen). The batteries are located on the back of the thermostat’s circuit board. The front portion of the thermostat can be removed from the back half by using the tabs on the top edge of the thermostat housing.
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.
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. SETBACK HOLD Mt. Laurel, New Jersey 08054, USA http://www.luxproducts.