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Lux Products TX500U Installation And Operating Instructions Manual

Smart temp universal 5/2-day programmable thermostat
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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
• 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
WARNING: Use Energizer
Energizer
DURACELL
© 2011 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED
SMART TEMP
IMPORTANT!
®
or DURACELL
®
is a registered trademark of Eveready Battery Company, Inc.
®
is a registered trademark of The Gillette Company, Inc.
T X 5 0 0 U
®
UNIVERSAL
COMPLETE THE INSTALL . . . . . . . . . 18
FRONT PANEL ITEMS . . . . . . . . . . . 18
OPERATING INSTRUCTIONS . . . . . . . 20
TEMPERATURE PROGRAMS . . . . . . . 22
ADVANCED FEATURES . . . . . . . . . . 23
BATTERY REPLACEMENT . . . . . . . . . 29
TECHNICAL ASSISTANCE . . . . . . . . . 30
LIMITED WARRANTY . . . . . . . . . . . 30
MERCURY NOTICE . . . . . . . . . . . . . 31
®
Alkaline Batteries Only.
52105

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  Summary of Contents for Lux Products TX500U

  • Page 1: Table Of Contents

    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...
  • Page 2: System Compatibility

    TX500U LCD Display Screen Fan Mode Set Slide Switch AUTO 5 : 36 Switch ˚ DAY/TIME HEAT TEMP PROG ˚ AIR FILTER TEMPERATURE HEAT HOLD 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.
  • Page 3: Features

    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 for easy programming • User-selectable periods per day (2 or 4) •...
  • Page 4: Mounting Location

    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.
  • Page 5: Install Thermostat Base

    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.
  • Page 6 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.
  • Page 7: Wiring Diagrams

    WIRING DIAGRAMS: DIAGRAM SYSTEM TYPE / DESCRIPTION PAGE # CONVENTIONAL: HEATING ..........8 1-STAGE OR 2-STAGE 2, 3, 4, 5 WIRES CONVENTIONAL: HEATING ..........9 3-WIRE ZONE VALVE 3, 4 WIRES CONVENTIONAL: COOLING..........10 1-STAGE 3, 4 WIRES CONVENTIONAL: HEATING AND COOLING ......11 1-STAGE HEAT 4, 5 WIRES CONVENTIONAL:...
  • Page 8 1-STAGE OR 2-STAGE, HEATING ONLY 2, 3, 4, 5 WIRES (INCLUDING MILLIVOLT) (2-WIRE HEAT USE “RH” & “W1”) Factory RH-RC Jumper Wire Installed FAN WIRE MAY NOT BE PRESENT IN ALL SYSTEMS SYSTEM COMMON STAGE STAGE SYSTEM 24V TRANSFORMER HEATER NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC...
  • Page 9 HOT WATER HEATING ONLY 3, 4 WIRES (WITH A 3-WIRE ZONE VALVE) Factory RH-RC Jumper Wire Installed SYSTEM COMMON OPEN CLOSE SYSTEM 24V TRANSFORMER 3-WIRE ZONE VALVE OPEN = Heat On CLOSE = Heat Off NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC...
  • Page 10 3, 4 WIRES 1-STAGE, COOLING ONLY Factory RH-RC Jumper Wire Installed SYSTEM COMMON SYSTEM 24V TRANSFORMER CONDITIONER NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC...
  • Page 11 CONVENTIONAL (NON HEAT PUMP) 4, 5 WIRES 1-STAGE HEATING AND 1-STAGE COOLING Factory RH-RC Jumper Wire Installed SYSTEM COMMON SYSTEM 24V HEATER CONDITIONER TRANSFORMER NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC...
  • Page 12 CONVENTIONAL (NON HEAT PUMP) 5, 6 WIRES 2-STAGE HEATING AND 1-STAGE COOLING Factory RH-RC Jumper Wire Installed SYSTEM COMMON STAGE STAGE SYSTEM 24V CONDITIONER TRANSFORMER HEATER NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC...
  • Page 13 1-STAGE HEATING AND 1-STAGE COOLING 5, 6 WIRES WITH TWO SEPARATE 24V TRANSFORMERS Factory RH-RC Jumper Wire REMOVED SYSTEM COMMON COOL 24V HEAT 24V HEATER CONDITIONER TRANSFORMER TRANSFORMER NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC...
  • Page 14 SINGLE-STAGE HEAT PUMP SYSTEM 4, 5 WIRES WITH NO AUX OR EMERGENCY HEAT ** Use “O” or “B” CUSTOMER INSTALLED Y-W1 Jumper Wire Terminals, Never Both Factory RH-RC Jumper Wire Installed SYSTEM COMMON REVERSING SYSTEM 24V HEAT PUMP VALVE TRANSFORMER NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC...
  • Page 15 2-HEAT / 1-COOL, HEAT PUMP SYSTEM 5, 6 WIRES WITH AUX AND EMERGENCY HEAT ** Use “O” or “B” CUSTOMER INSTALLED Y-W1 Jumper Wire Terminals, Never Both Factory RH-RC Jumper Wire Installed SYSTEM COMMON REVERSING SYSTEM 24V AUX / EMERG. HEAT PUMP VALVE TRANSFORMER...
  • Page 16: Hardware Setup Options

    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.
  • Page 17 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).
  • Page 18: Complete The Install

    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”...
  • Page 19 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.
  • Page 20: Operating Instructions

    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.
  • Page 21 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.
  • Page 22: Temperature Programs

    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.
  • Page 23: Advanced Features

    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.
  • Page 24 Cut-In / Cut-Out Stage) 70˚F Set Temperature Swing Setting= #2 (+/- 0.5˚F) Offset ** Setting= 4˚F degrees Stage) ** Cut-In / Cut-Out DEGREES (F) ** = Only applies if a second heat stage is present...
  • Page 25 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.
  • Page 26 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”...
  • Page 27: Air Filter Monitor

    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.
  • Page 28: Software Reset

    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.
  • Page 29: Battery Replacement

    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.
  • Page 30: Technical Assistance

    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.
  • Page 31: Mercury Notice

    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.
  • Page 32 5 : 36 ˚ HEAT ˚ HOLD Mt. Laurel, New Jersey 08054, USA http://www.luxproducts.com 856-234-8803...