TX1500Uc SMART TEMP ® UNIVERSAL 5/1/1-DAY PROGRAMMABLE OR NON-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 52173 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 X1 500U c Fan Mode Switch LCD Display Screen FAN AUTO ON TU DAY SET P FAN Set Slide Switch RUN HEAT DAY/TIME TEMP PROG FILTER %LEFT TEMPERATURE AIR FILTER SET HEAT OFF SETBACK HOLD EMER COOL 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-Cool, 5/1/1-day programming Universal Compatibility for all system types Weekdays, Saturday, and Sunday 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 Programmable air filter life timer Graphical filter monitor Keypad lockout for unauthorized users Man
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 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. WIRING BASE PLATE NOTICE: This thermostat model is part of a family of similar models that have the same general visual appearance. Even though this base plate may look the same as base plates from other models, the wiring connections may have different terminal letters for different purposes.
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 ..........................................................10 1-STAGE OR 2-STAGE 2, 3, 4, 5 WIRES #2 CONVENTIONAL: HEATING ..........................................................11 3-WIRE ZONE VALVE 3, 4 WIRES #3 CONVENTIONAL: COOLING ..........................................................12 1-STAGE 3, 4 WIRES #4 CONVENTIONAL: HEATING AND COOLING .....................................
FAN WIRE MAY NOT BE PRESENT IN ALL SYSTEMS B G RH SYSTEM 24V TRANSFORMER RH F V R SYSTEM COMMON RC G Y Factory RH-RC Jumper Wire Installed STAGE 2 A HEATER STAGE 1 4 W1 W W1 W2 W2 1-STAGE OR 2-STAGE, HEATING ONLY (INCLUDING MILLIVOLT) (2-WIRE HEAT USE “RH” & “W1”) C O P T I O N A L B* X C #1 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC FAN O 2, 3, 4, 5 WIRES
B G A CLOSE A 3-WIRE ZONE VALVE OPEN 4 W1 RH V W W1 R RH SYSTEM COMMON RC SYSTEM 24V TRANSFORMER Y Factory RH-RC Jumper Wire Installed HOT WATER HEATING ONLY (WITH A 3-WIRE ZONE VALVE) W2 X C OPEN = Heat On CLOSE = Heat Off B* C O P T I O N A L #2 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC O 3, 4 WIRES
B Y1 F 6 Y Y G FAN G W1 SYSTEM COMMON RH SYSTEM 24V TRANSFORMER V RC R RC Factory RH-RC Jumper Wire Installed 1-STAGE, COOLING ONLY A AIR CONDITIONER 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 O 3, 4 WIRES
G RC 6 SYSTEM 24V TRANSFORMER C O P T I O N A L B* C 4 W2 X HEATER A W1 W W1 SYSTEM COMMON V RH R Y1 RH F RC Y Y G AIR CONDITIONER B Factory RH-RC Jumper Wire Installed CONVENTIONAL (NON HEAT PUMP) 1-STAGE HEATING AND 1-STAGE COOLING #4 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC FAN O 4, 5 WIRES
G RC 6 SYSTEM 24V TRANSFORMER HEATER STAGE 2 C O P T I O N A L B* C 4 W2 W2 X STAGE 1 A W1 W W1 SYSTEM COMMON V RH R Y1 RH F RC Y Y G AIR CONDITIONER B Factory RH-RC Jumper Wire Installed CONVENTIONAL (NON HEAT PUMP) 2-STAGE HEATING AND 1-STAGE COOLING #5 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC FAN O 5, 6 WIRES
G V 6 V R RH RH COOL 24V TRANSFORMER C B* C 4 HEATER W2 X A W1 W W1 HEAT 24V TRANSFORMER SYSTEM COMMON R Y1 F RC RC Y Y G AIR CONDITIONER B Factory RH-RC Jumper Wire REMOVED CONVENTIONAL (NON HEAT PUMP) 1-STAGE HEATING AND 1-STAGE COOLING WITH TWO SEPARATE 24V TRANSFORMERS O P T I O N A L #6 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC FAN O 5, 6 WIRES
O B Y1 F 6 Y Y G FAN G W1 A HEAT PUMP W2 C CUSTOMER INSTALLED Y-W1 Jumper Wire SYSTEM COMMON RH SYSTEM 24V TRANSFORMER V RC R RC Factory RH-RC Jumper Wire Installed SINGLE-STAGE HEAT PUMP SYSTEM WITH NO AUX OR EMERGENCY HEAT O P T I O N A L B* X C #7 NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC REVERSING VALVE O ** Use “O” or “B” Terminals, Never Both 4, 5 WIRES
O B FAN G Y1 F RH HEAT PUMP W1 A 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. 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.
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.
SYSTEM CONFIGURATION AND SETUP OPTIONS: 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 EMER button for approximately 5 seconds until the screen changes. The menu will always start with item #1, and is advanced to each following item by a single press of the NEXT button.
ITEM #07 (DLAY = 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 #08 (TEMPERATURE SWING): A thermostat works by turning your heating or cooling system on and off whenever the room temperature varies from the desired set-point temperature.
71 70 69 68 Cut-In / Cut-Out (1st Stage) 70˚F Set Temperature Swing Setting= #2 (+/- 0.
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.
characteristics, you should refer to your heat pump literature to determine when to disable the heat pump and run in Emergency Heat mode. In general for most heat pump systems, use Emergency Heat mode whenever the outside temperature is less than 32°F (0°C) degrees. 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 (SYSTEM CONFIGURATION AND SETUP OPTIONS), the thermostat will only use the DAY and NITE periods.
ADVANCED FEATURES: 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.
screen to advance forward on its own, or press the NEXT button (behind the door) one time to jump ahead rapidly. Now use the UP/DOWN buttons to select your desired set temperature that will be used for the Setback duration. Just like the previous step, you can either wait for the screen to advance on its own, or press the NEXT button to advance and return to the Normal Run screen. TO CANCEL A SETBACK: While in the Normal Run screen, press and hold the SETBACK button for at least 2 seconds.
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.
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.
HARDWARE RESET: The Hardware Reset button (labeled “HW RST”) is a small round push button that is located in the HW RST middle of 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, 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.
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 “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. TU DAY P FAN HEAT FILTER %LEFT SETBACK SET HOLD Mt. Laurel, New Jersey 08054, USA http://www.luxproducts.