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
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
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
TX500U
SMART TEMP
®
UNIVERSAL
5/2-DAY PROGRAMMABLE THERMOSTAT
(FOR BOTH CONVENTIONAL AND HEAT PUMP SYSTEMS)
INSTALLATION AND OPERATING INSTRUCTIONS
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.
52105
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