TXU Energy iThermostat Installation Manual Download Page 3

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iThermostat

™

Installation Manual

Contents

Contents.................................................................................................................. 1

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................................................................................. 25

Summary of Contents for iThermostat

Page 1: ...TXU Energy iThermostat Installation Manual...

Page 2: ...d 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 iThermostat is manufactured in partnership with...

Page 3: ...oduction 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 iTh...

Page 4: ...mostat Can Replace Most Thermostats The iThermostat will work with the following heating and cooling systems Heat Pump No Aux or Emergency Heat Heat Pump with Aux or Emergency Heat Standard Heat Cooli...

Page 5: ...box until installation is complete Do not use on circuits exceeding specified voltage Higher voltage will damage control and could cause shock or fire hazard This product does not contain mercury Howe...

Page 6: ...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...

Page 7: ...l optional Power drill with 3 16 inch drill bit Installation Tips Read and save these instructions for future use Before attempting any step in the installation process that you are unsure about how t...

Page 8: ...age disconnect electric power to system at main fuse or circuit breaker box until installation is complete o Remove cover from old thermostat to expose wires o Identify each wire to corresponding term...

Page 9: ...hermostat Installation Manual 7 3 Configure iThermostat 4 Check iThermostat Operation 5 Activate iThermostat o Log into TXU Energy web site at www txu com iThermostat to activate and set initial progr...

Page 10: ...ore 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 pow...

Page 11: ...re attached to the old thermostat as shown in the diagram Before removing wires from old thermostat s switching sub base label each wire with the letter on the old thermostat Ignore wire colors and us...

Page 12: ...1 Unpack iThermostat and remove cover 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...

Page 13: ...er or a letter with a number O B R etc Connect wires as follows o Feed thermostat wires through square hole in the iThermostat o Locate the terminal where the wire needs to connect Match the labels fr...

Page 14: ...mounting hole locations Place iThermostat base over hole in the wall and mark mounting hole locations see below using base as a template 5 Drill holes Move base out of the way Drill mounting holes us...

Page 15: ...el against bottom of base and adjust until level before tightening screws If you are using existing mounting holes or if holes drilled are too large and do not allow you to tighten base snugly use pla...

Page 16: ...C terminal set the switch to PS 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...

Page 17: ...HP2 Configure iThermostat 5 Press the SYSTEM button one or more times to set the system to OFF 6 Simultaneously press and to enter the Configuration Menu The display will show the first item in the C...

Page 18: ...tallation Manual 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 t...

Page 19: ...fan cooling system and heating system are all operating properly If your system does not have a G terminal connection skip to Heating System Check fan operation 1 Turn on power to system by closing ci...

Page 20: ...djust temperature setting to 3 below room temperature The second stage cooling should begin to operate and the display should show STG 1 2 for dual speed setting 7 Press the up arrow button to adjust...

Page 21: ...is operating 10 Adjust temperature setting to 3 above room temperature If your system configuration is set at MS2 HP2 or HP1 the auxiliary heat system should begin to operate and STG 1 2 should displa...

Page 22: ...to iThermostat web site at www txu com iThermostat using the user name and password provided to you on the welcome letter included in the kit 2 Click on the Profile tab and then click the Activate Tes...

Page 23: ...iThermostat Installation Manual 21 Appendix...

Page 24: ...the W2 and Y2 terminals 2 If you have both an R and RC or RH please contact contractor for installation assistance O C B R Y1 E W1 L G Y2 W2 C G W Y R Conventional System Typical Wiring O C B R Y1 E...

Page 25: ...em O C B R Y1 E W1 L G Y2 W2 C L G Y2 W2 E Y1 R B O Or B or X or X1 Or F or L1 Or F Or H Or Z Or RC or RH Y Or M W1 or F Heat Pump O C B R Y1 E W1 L G Y2 W2 C L G Y2 W2 E Y1 R Or B or X or X1 Or F or...

Page 26: ...cator G Green or Gray Energizes Indoor Fan Y2 Blue Second Stage Cooling W2 Black Energizes Second Stage Heat E W1 White Energizes First Stage Heat Y1 Yellow First Stage Cooling R Red 24 Volt Hot B Bro...

Page 27: ...sly press and to access the Configuration Menu The display will show the first item in the Configuration Menu which is MS2 To change a specific setting in each step use the and keys To move between Co...

Page 28: ...d to 4 2 or 0 by pressing the or keys With PRG 0 selected for non programmable SYSTEM key selection will skip Energy Management Recovery item 3 and Timed Hold item 10 Options for this menu item includ...

Page 29: ...wer It will also wait 5 minutes minimum between cooling and heating cycles This is intended to help protect the compressor from short cycling Some newer compressors already have a time delay built in...

Page 30: ...f 000 will cancel this feature When FLTR is displayed you can clear it by pressing HOLD and RUN at the same time This resets the timer and starts counting the hours until the next filter change Contac...

Page 31: ...emind you it is in Temporary Hold After 3 hours the thermostat will go back to the program temperature and HOLD will no longer blink or display 11 Temperature Readout Units Default Setting F Changes t...

Page 32: ...decrement This feature may be exited by pressing the RUN PRGM key or when 120 seconds has elapsed without keypad activity 16 Keypad Lockout Default Setting 0 or Off This menu selection will display a...

Page 33: ...u is entered with the keypad lockout feature enabled the first menu item displayed is the combination code 0 The or keys are used to set the combination unlock number from 0 to 999 If the unlock numbe...

Page 34: ...LUSION OF LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THIS LIMITATION MAY NOT APPLY TO YOU The Warranty Period begins on the date the Item is shipped and extends for 24 months for hardware Du...

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