TXU Energy iThermostat Installation Manual
  1. Manuals
  2. Brands
  3. TXU Energy Manuals
  4. Thermostat
  5. iThermostat
  6. Installation manual

TXU Energy iThermostat Installation Manual

Hide thumbs Also See for iThermostat:
Table of Contents

Advertisement

Quick Links

See also: User Manual
TXU Energy
iThermostat
™
Installation Manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the iThermostat and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for TXU Energy iThermostat

Summary of Contents for TXU Energy iThermostat

  • Page 1 TXU Energy iThermostat ™ Installation Manual...
  • Page 2 Copyright May 2008 Data, drawings, and other material contained herein are proprietary to TXU Energy Retail Company, LLC and may not be reproduced or duplicated in any form without the prior permission of TXU Energy. iThermostat is a trademark of TXU Energy Retail Company, LLC.

  • Page 3: Table Of Contents

    Introduction......................2 Getting Started......................4 Quick Guide......................6 Step 1: Remove Old Thermostat ................8 Step 2: Wire and Mount iThermostat™..............10 Step 3: Configure iThermostat................15 Step 4: Check iThermostat Operation ..............17 Step 5: Activate iThermostat................20 Wiring Chart......................22 Configuration Menu Options.................

  • Page 4: Introduction

    Introduction About this Manual This manual describes how to install the TXU Energy iThermostat™ in your home. If you need assistance with the installation, you should contact iThermostat customer service at 1-866-733-1807. The iThermostat™ Can Replace Most Thermostats The iThermostat will work with the following heating and cooling systems: •...
  • Page 5 Failure to read and follow all instructions carefully before installing or operating could cause personal injury and/or property damage. If there are any questions regarding the installation procedures, please contact iThermostat customer service at 1-866-733-1807 before attempting any step in the installation process.

  • Page 6: Getting Started

    Read these instructions thoroughly. In particular, make note of the Cautions and Installation Tips contained in this manual. Check your iThermostat kit to make sure you have all of the required parts (see below). Assemble the required tools (see below).

  • Page 7: Installation Tips

    Read and save these instructions for future use. • Before attempting any step in the installation process that you are unsure about how to perform and to prevent personal injury and/or property damage, contact iThermostat customer service at 1-866-733- 1807. iThermostat™ Installation Manual...

  • Page 8: Quick Guide

    Identify each wire to corresponding terminal and disconnect. Remove old thermostat from wall, making sure that thermostat wires do not fall back into wall opening. 2) Wire and Mount iThermostat Feed thermostat wires through iThermostat hole. Wire iThermostat. Set iThermostat switches. Engage batteries.
  • Page 9 3) Configure iThermostat 4) Check iThermostat Operation 5) Activate iThermostat Log into TXU Energy web site at www.txu.com/iThermostat to activate and set initial program. iThermostat™ Installation Manual...

  • Page 10: Step 1: Remove Old Thermostat

    You must turn off the power to the thermostat before installing your new iThermostat. Turning off power to the air handler is the easiest way to turn off power to the thermostat. If your house was built before 1985, you will likely need to turn off power to the air handler at the breaker panel.

  • Page 11: Remove Old Thermostat

    4) Disconnect the wires from the old thermostat one at a time. Important: Do not let wires fall back into the wall. You may want to wrap the wires around a pencil to keep them from falling back into Installation Tip: the wall. iThermostat™ Installation Manual...

  • Page 12: Step 2: Wire And Mount Ithermostat

    Remove the packing material from the iThermostat. Gently pull the cover straight off the base: hold the iThermostat from the back by the lower corners with one hand, and pull one of the lower corners of the cover with the other hand.
  • Page 13 Connect wires beneath terminal screws on base. The photo to the right shows the location of the wire terminals in the iThermostat. There are two sets of terminals, one vertical and one horizontal. Each terminal is labeled with a letter or a letter with a number (O, B, R, etc.).
  • Page 14 4) Mark mounting hole locations. Place iThermostat base over hole in the wall and mark mounting hole locations (see below) using base as a template. Mounting holes 5) Drill holes. Move base out of the way. Drill mounting holes using a 3/16 inch drill bit.
  • Page 15 If you are using existing mounting holes, or if holes drilled are too large and do not allow you to tighten base snugly, use plastic wall anchors to secure sub-base. Push excess wire into wall and plug hole with a fire resistant material (such as fiberglass insulation) to prevent drafts from affecting iThermostat operation. iThermostat™ Installation Manual...
  • Page 16 Note: RC/PS switch must be in correct position or thermostat may not function properly. 8) Engage batteries. Two AA alkaline batteries with a battery tag to prevent power drainage are included in the iThermostat. You must remove the battery tag (positive end of left battery) to engage the batteries.

  • Page 17: Step 3: Configure Ithermostat

    Select MS2 (default) if you have standard central A/C system and HP2 if you have a heat pump system. 7) You can customize additional features of your iThermostat by following the steps in the Configuration Menu Options section in this appendix starting on page 25.
  • Page 18 8) To exit this menu at any time during the configuration step and return to the program operation, press RUN. If no keys are pressed within fifteen minutes, the iThermostat will revert to normal operation. iThermostat™ Installation Manual...

  • Page 19: Step 4: Check Ithermostat Operation

    To prevent compressor and/or property damage, if the outdoor temperature is below 50° F, DO NOT operate the cooling system. Once your iThermostat is installed, check that the fan, cooling system, and heating system are all operating properly. If your system does not have a G terminal connection, skip to Heating System.
  • Page 20 9) Press the up arrow button to adjust iThermostat setting to 1° above room temperature. The heating system should begin to operate. STG1 should display (for single speed setting). However, if the system iThermostat™ Installation Manual...
  • Page 21 HP2 or HP1, the auxiliary heat system should begin to operate and STG 1+2 should display (for dual speed setting). 11) Press the down arrow button to adjust the iThermostat below room temperature. The heating system should stop operating. iThermostat™ Installation Manual...

  • Page 22: Step 5: Activate Ithermostat

    2) Click on the “Profile” tab and then click the “Activate Test Light” button. This will flash the green LED on your iThermostat for 1 hour and update the current time and date. Check iThermostat to confirm that green light is flashing and that your time and date are current. This is your indication that your iThermostat and Gateway are communicating and activated.
  • Page 23 Appendix iThermostat™ Installation Manual...

  • Page 24: Wiring Chart

    Most conventional systems will only have 4-5 wires so some terminals on the iThermostat will not be used. If you are unsure about the identification or function of any terminal on your old thermostat, contact the manufacturer before proceeding.
  • Page 25 Or B or X or X1 Or B or X or X1 Or F or L1 Or F or L1 Or F or L1 Or F or L1 Or F Or F Or F Or F E/W1 E/W1 E/W1 E/W1 iThermostat™ Installation Manual...
  • Page 26 Terminal Functions The following chart shows the function for each terminal on your iThermostat. Terminal Typical Wire Color Function/Description Brown, Black or Blue 24 Volt Neutral (Common) Varies Malfunction Indicator Green or Gray Energizes Indoor Fan Blue Second Stage Cooling...

  • Page 27: Configuration Menu Options

    Configuration Menu Options Following are detailed descriptions of all available iThermostat features. Default settings have been preprogrammed and should provide optimum energy saving performance. However, you may choose to customize your configuration to further improve the performance. To access the Configuration Menu, press the SYSTEM button one or more times to set the system to OFF.
  • Page 28 3) Energy Management Recovery Feature: (Default Setting - ON) With the Energy Management Recovery (EMR) feature ON the thermostat will start heating or cooling early to make the building temperature reach the programmed setpoint at the time you specify. Heating iThermostat™ Installation Manual...
  • Page 29 When the "C" terminal is not powered, the light will be on momentarily after any key is pressed no matter the backlight is selected ON or OFF. 7) Second Stage Feature: (Default Setting - ON) iThermostat™ Installation Manual...
  • Page 30 10) Timed Hold Feature: (Default Setting - 4:00) The thermostat can hold any temperature you set it to for the amount of time you select on this option. Your choices are 0:00 to 8:00 hours in 15 minute increments. 0:00 means disable. iThermostat™ Installation Manual...
  • Page 31 62°F and 89°F by pressing the key. 13) Limited Cool Range Feature: (Default Setting - 45F°) This feature provides a minimum setpoint temperature for cool. The default setting is 45°F. It can be changed between 46°F and 82°F by pressing the key. iThermostat™ Installation Manual...
  • Page 32 If a combination of 0 is selected and the SYSTEM key is pressed the menu will be exited and keypad lockout will not be evoked. If 1 to 999 is selected and the SYSTEM key is pressed again, the iThermostat™ Installation Manual...

  • Page 33: Reset Operation

    Reset Operation Pressing the and the SYSTEM keys at the same time will reset the thermostat to its factory default setting. This will also clear all programming and reset all configuration settings to their default values. iThermostat™ Installation Manual...
  • Page 34 The Warranty Period begins on the date the Item is shipped and extends for 24 months for hardware. During the Warranty Period, TXU Energy will repair or replace, at our option, any product returned to us by User (at User’s expense), which fails to satisfy this Warranty, unless the failure was the result of shipping;...

Table of Contents