LUX TX500Ub Non Programmable Thermostat Instruction Manual
TX500Ub
SMART TEMP® UNIVERSAL 5/2-DAY
PROGRAMMABLE OR NON-PROGRAMMABLE THERMOSTAT
(FOR BOTH CONVENTIONAL AND HEAT PUMP SYSTEMS)
INSTALLATION AND OPERATING INSTRUCTIONS
52134
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.
CAUTIONS AND WARNINGS . . . . . . . . . . 2
SYSTEM COMPATIBILITY . . . . . . . . . . . . 3
FEATURES . . . . . . . . . . . . . . . . . . . . . . . 4
TOOLS YOU MAY NEED . . . . . . . . . . . . . . 4
MOUNTING LOCATION . . . . . . . . . . . . . . 5
REMOVE OLD THERMOSTAT . . . . . . . . . . 5
INSTALL THERMOSTAT BASE . . . . . . . . . 6
WIRING INFORMATION . . . . . . . . . . . . . . 6
WIRING DIAGRAMS . . . . . . . . . . . . . . . . 8
COMPLETE THE INSTALL . . . . . . . . . . . 17
FRONT PANEL ITEMS . . . . . . . . . . . . . . 17
SYSTEM CONFIGURATION AND SETUP
OPTIONS . . . . . . . . . . . . . . . . . . . . . . . 19
OPERATING INSTRUCTIONS . . . . . . . . . 21
TEMPERATURE PROGRAMS . . . . . . . . . 23
ADVANCED FEATURES . . . . . . . . . . . . . 24
BATTERY REPLACEMENT . . . . . . . . . . . 28
TECHNICAL ASSISTANCE . . . . . . . . . . . 29
LIMITED WARRANTY . . . . . . . . . . . . . . 29
MERCURY NOTICE . . . . . . . . . . . . . . . . 30
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 Procter & Gamble Company
© 2014 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED
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| General | Details |
|---|---|
| Name | LUX TX500Ub Non Programmable Thermostat Instruction Manual |
| Make | LUX |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.31 MB |
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LUX TX500Ub Manual: Questions and Answers
Where should I mount the LUX TX500Ub on my wall?
Mount on an inside wall about 5 ft. above the floor, away from corners, alcoves, doors, direct sunlight, lamps, televisions, radiators, exterior doors or windows, and damp environments. Instruction Manual, p. 5
Can I connect both O and B terminals on the LUX TX500Ub for a heat pump system?
No. Use either the O terminal or the B terminal, but not both. If your old thermostat has both wires, B is likely a System Common wire and may connect to the C terminal instead. Instruction Manual, p. 7
What does OVERRIDE mean on the LUX TX500Ub display?
The set temperature has been temporarily changed from the programmed value. It will revert to the scheduled temperature when the next program period begins. Instruction Manual, p. 22
What do the UP and DOWN buttons do on the LUX TX500Ub?
In RUN mode, they adjust the temperature. In DAY/TIME mode, they set the day of the week and clock time. Instruction Manual, p. 21
How often should thermostat batteries be replaced
At least once per year, or sooner if the display shows 'LO BATT'. Instruction Manual, p. 28
How do I know when the LUX TX500Ub battery is running low
The battery graphic on the display shrinks to one bar, and temperature and clock digits alternate with 'LO BATT'. Instruction Manual, p. 28
Does the LUX TX500Ub need a factory jumper wire removed for a two-transformer setup?
Yes. Remove the factory RH-RC jumper wire when using two separate 24V transformers.
- Locate the factory RH-RC jumper wire between those terminals
- Remove the jumper wire
- Connect RC to the cooling transformer
- Connect RH to the heating transformer Instruction Manual, p. 14
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