Lux Products P721 User Manual

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 . . . . . . . . . . . . . . 7
WIRING DIAGRAMS . . . . . . . . . . . . . . . . 9
COMPLETE THE INSTALL . . . . . . . . . . . 15
FRONT PANEL ITEMS . . . . . . . . . . . . . . 16
SYSTEM CONFIGURATION AND SETUP
OPTIONS . . . . . . . . . . . . . . . . . . . . . . . 17
OPERATING INSTRUCTIONS . . . . . . . . . 19
TEMPERATURE PROGRAMS . . . . . . . . . 21
ADVANCED FEATURES . . . . . . . . . . . . . 23
BATTERY REPLACEMENT . . . . . . . . . . . 24
TECHNICAL ASSISTANCE . . . . . . . . . . . 24
LIMITED WARRANTY . . . . . . . . . . . . . . 25
MERCURY NOTICE . . . . . . . . . . . . . . . . 25
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
© 2015 LUX PRODUCTS CORPORATION. ALL RIGHTS RESERVED
P 7 2 1
7-DAY or 5/2-DAY PROGRAMMABLE,
OR NON-PROGRAMMABLE THERMOSTAT
I NS 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
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.
52206

Lux Products P721 Specifications

General

Brand	Lux Products
Model	P721
Category	Thermostat
Language	English

Summary

Cautions and Warnings

System Compatibility

Compatible Systems

Lists heating/cooling systems compatible with the thermostat.

Incompatible Systems

Lists systems the thermostat is not compatible with.

Features

Tools You May Need

Mounting Location

Remove Old Thermostat

Install Thermostat Base

Wiring Information

Connecting Wires

Instructions on properly connecting wires to the terminal block.

Wiring Base Plate Notice

Warning about potential differences in wiring connections between models.

Wiring Diagram Notes

Wiring Diagrams

Conventional Heat Only Wiring

Diagram for conventional, non-heat pump, 1-stage heat only systems.

Conventional Cool Only Wiring

Diagram for conventional, non-heat pump, 1-stage cool only systems.

Conventional Heat & Cool Wiring

Diagram for conventional, non-heat pump, 1-stage heat and cool.

Conventional Two-Transformer Wiring

Diagram for conventional, non-heat pump, 1-heat/1-cool with two transformers.

Heat Pump Wiring

Diagram for heat pump systems with no auxiliary/emergency heat.

Complete the Install

Install Batteries

Instructions for installing the required AA alkaline batteries.

Gas/Electric Circuit Board Option

Setting for controlling the blower fan based on system type (Gas or Electric).

B/O Circuit Board Option for Heat Pumps

Setting for heat pump reversing valve operation (O or B).

Front Panel Items

Panel Controls Overview

Explains the functions of the system mode, fan mode, and other control buttons.

System Configuration and Setup Options

Temperature Scale

Option to set temperature display to Fahrenheit or Celsius.

Programming Style

Options for 5/2-Day, 7-Day, or Manual Non-Programmable modes.

Period Quantity

Sets the number of daily periods (2 or 4).

Maximum Heat Set Limit

Sets the upper limit for heating temperatures.

Minimum Cool Set Limit

Sets the lower limit for cooling temperatures.

System/Equipment Type

Configures thermostat for Furnace or Heat Pump systems.

Delay Time

Sets the delay before system restarts to protect equipment.

Temperature Swing

Adjusts how much temperature deviates before system activates.

Temperature Calibration

Adjusts the thermostat's internal temperature sensor reading.

Operating Instructions

Setting Day and Time

Guide to setting the thermostat's current day and time.

Heating and Cooling Operation

Basic operation for heat and cool modes, including default routines.

LCD Display Backlight

Information on how the display backlight functions.

Temperature Override

How to temporarily change the set temperature.

Temperature Hold

How to maintain a fixed temperature indefinitely.

Static Notice

Precaution against static electricity damage.

Temperature Programs

Setting Temperature Programs

Guide to programming daily temperature schedules.

5/2-Day Programming

How to set programs for weekdays and weekends separately.

7-Day Programming

How to set unique programs for each day of the week.

Copy Feature

Function to copy program settings to other days.

Advanced Features

Keypad Lockout

How to lock/unlock the thermostat buttons.

Software Reset

How to reset the thermostat to factory defaults.

Compressor Protection Bypass

Temporarily disabling compressor protection delays for testing.

Battery Replacement

Technical Assistance

Limited Warranty

Mercury Warning and Recycling Notice