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Table of Contents
Related Manuals for TXU Energy iThermostat 1F88-300
Summary of Contents for TXU Energy iThermostat 1F88-300
- Page 1 TXU Energy iThermostat In-Home User Manual Model: 1F88-300 7-Day Programming...
- Page 2 Copyright November 2009 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. TXU Energy iThermostat is a trademark of TXU Energy Retail Company LLC.
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Page 3: Table Of Contents
TXU Energy iThermostat In-Home User Manual Table of Contents Table of Contents Getting Started with Your iThermostat™ ................... 3 Overview ..........................3 iThermostat™ Buttons ......................4 iThermostat™ Display ......................5 Normal Thermostat Display ....................6 Selecting Heating or Cooling ....................6 Setting the Current Day and Time .................. - Page 4 TXU Energy iThermostat In-Home User Manual...
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Page 5: Getting Started With Your Ithermostat
TXU Energy iThermostat In-Home User Manual Getting Started with Your iThermostat™ Getting Started with Your iThermostat™ Overview Your iThermostat™ has a door that opens so you can access the buttons to operate and program the iThermostat. Open the iThermostat door: •... -
Page 6: Ithermostat™ Buttons
TXU Energy iThermostat In-Home User Manual Getting Started with Your iThermostat™ iThermostat™ Buttons SYSTEM Selects the system mode: cooling, heating, auto- HOLD INFO PRGM changeover, Holds system at Displays the Enters emergency heat current temperature information screen thermostat (heat pumps only),... -
Page 7: Ithermostat™ Display
TXU Energy iThermostat In-Home User Manual Getting Started with Your iThermostat™ iThermostat™ Display Message Area Indicates the current period of the day. Day of the Week Also displays other messages such as Indicates the current day of consumption, bill, rate, etc. if enabled the week. -
Page 8: Normal Thermostat Display
TXU Energy iThermostat In-Home User Manual Getting Started with Your iThermostat™ Normal Thermostat Display The “normal” thermostat display is what displays on your thermostat during normal operation. The following display elements appear in normal display: • Time period – Top left. DAY in this example. - Page 9 TXU Energy iThermostat In-Home User Manual Getting Started with Your iThermostat™ Auto-Changeover Mode In auto-changeover mode, iThermostat automatically switches between your heating and cooling programs to maintain your home’s temperature within your programmed setpoints. The iThermostat will call for heat or cool as needed, but never both at the same time.
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Page 10: Setting The Current Day And Time
TXU Energy iThermostat In-Home User Manual Getting Started with Your iThermostat™ Setting the Current Day and Time After establishing communication with the Gateway, the current day and time on your iThermostat will be automatically updated within 24 hours. In case the system does not update with the current the day and time, you may need to set it yourself manually. - Page 11 TXU Energy iThermostat In-Home User Manual Getting Started with Your iThermostat™ Setting the Current Day and Time (Continued) U I C K U I D E T E P E S C R I P T I O N I S P L A Y Press once.
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Page 12: Resetting The Fltr Display
TXU Energy iThermostat In-Home User Manual Getting Started with Your iThermostat™ Resetting the FLTR Display If FLTR appears in your iThermostat display, this is a reminder that you need to change or clean the filter in your HVAC system. After you change or clean the filter, you can reset the display so FLTR no longer appears. -
Page 13: Programming Your Ithermostat
TXU Energy iThermostat In-Home User Manual Programming Your iThermostat™ Programming Your iThermostat™ This chapter explains how to manually program your iThermostat, including programming heating and cooling, and setting and clearing holds. Your iThermostat offers the following options for flexible programming: Separate programs for heating and cooling. -
Page 14: Programming Tips
TXU Energy iThermostat In-Home User Manual Programming Your iThermostat™ Programming Tips Skipping a Day or Group If you don’t want to program a particular day or group, you can skip it. Press PRGM one or more times until you reach the day or group you want to program. -
Page 15: Planning Your Program
TXU Energy iThermostat In-Home User Manual Programming Your iThermostat™ Planning Your Program Before you begin programming your thermostat, you can use the charts below to help you plan your program. Day: Day: Day: Day: Period Start Start Start Start Time... -
Page 16: Programming Heating And Cooling
TXU Energy iThermostat In-Home User Manual Programming Your iThermostat™ Programming Heating and Cooling U I C K U I D E T E P E S C R I P T I O N I S P L A Y Press PRGM twice. - Page 17 TXU Energy iThermostat In-Home User Manual Programming Your iThermostat™ Programming Heating and Cooling (Continued) U I C K U I D E T E P E S C R I P T I O N I S P L A Y...
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Page 18: Setting Holds
TXU Energy iThermostat In-Home User Manual Programming Your iThermostat™ Setting Holds You can override your heating or cooling program by setting a temporary or permanent hold. To clear holds, see “Clearing Holds” on page 19. Temporary Holds A temporary hold is when you override a programmed setting to be in effect until the next programmed time period begins (Morning, Day, Evening, or Night). - Page 19 TXU Energy iThermostat In-Home User Manual Programming Your iThermostat™ Setting Temporary Holds U I C K U I D E E S C R I P T I O N I S P L A Y Be sure your screen shows the normal display. Press the Up or Down arrow to change the temperature setpoint higher or lower.
- Page 20 TXU Energy iThermostat In-Home User Manual Programming Your iThermostat™ Clearing Holds U I C K U I D E E S C R I P T I O N I S P L A Y Make sure your display shows the normal display. Press the RUN button.
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Page 21: Configuration Menu Options
TXU Energy iThermostat In-Home User Manual Configuration Menu Options Configuration Menu Options Following are detailed descriptions of all available iThermostat Configuration Menu Options. Default settings have been pre-programmed and should provide optimum energy saving performance. However, you may choose to customize your configuration to further improve the performance. -
Page 22: Configuration Menu Options
TXU Energy iThermostat In-Home User Manual Configuration Menu Options Configuration Menu Options HVAC System Type This control can be configured for Heat Pump or two stage heat/two stage cool multi- stage operation. The display indicates "MS2" (default for multistage mode) in the display. - Page 23 TXU Energy iThermostat In-Home User Manual Configuration Menu Options Cycle Selection Feature The factory default setting is FA (fast cycle), which cycles the 1 stage at approximately 1.2°F and the 2nd stage at 0.75°F. If you prefer slow cycle, press the temperature key to change to SL (slow cycle).
- Page 24 TXU Energy iThermostat In-Home User Manual Configuration Menu Options Temperature Reading Measurement Adjustment Allows you to adjust the room temperature display up to 4° higher or lower. Your thermostat was accurately calibrated at the factory but you have the option to change the display temperature to match your previous thermostat temperature reading.
- Page 25 TXU Energy iThermostat In-Home User Manual Configuration Menu Options The up and down arrow buttons set the combination number from 0 to 999. "0" is not a valid combination. 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.
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Page 26: Troubleshooting Assistance Guide
TXU Energy iThermostat In-Home User Manual Troubleshooting Assistance Guide Troubleshooting Assistance Guide This section will help you troubleshoot common issues you may encounter with your iThermostat. If you encounter a problem that is not listed here, contact iThermostat customer service at 1-866-733-1807. -
Page 27: Programming
TXU Energy iThermostat In-Home User Manual Troubleshooting Assistance Guide The light stays On, does not flash (Light next to UP/DOWN buttons). Normal operation. Indicates that a curtailment event is in effect or a test signal has • been sent. •... - Page 28 TXU Energy iThermostat In-Home User Manual Troubleshooting Assistance Guide Temperature display is incorrect. The electronic iThermostat is very accurate and maintains the setpoint more accurately than non-electronic thermostats (within +/- 1.0 degree). While programming, body heat can increase display temperature. Wait about 10 •...
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Page 29: Holds
TXU Energy iThermostat In-Home User Manual Troubleshooting Assistance Guide iThermostat current setpoint does not match the display temperature. The iThermostat may be in recovery from a setback period or curtailment event. • Depending upon thermal load of the system, it may take time for the temperature to reach the desired setpoint. -
Page 30: Equipment
TXU Energy iThermostat In-Home User Manual Troubleshooting Assistance Guide Temporary hold disappears from the screen and allows the temperature to revert to the normal settings. Normal operation. A temporary temperature hold setpoint remains in effect until the next program time period begins. If a more permanent hold is desired, press the HOLD button. - Page 31 TXU Energy iThermostat In-Home User Manual Troubleshooting Assistance Guide If the display on the thermostat is blank, verify that the air handler (emergency) • breaker is not tripped or manually turned off, and that the indoor air handler is being powered.
- Page 32 TXU Energy iThermostat In-Home User Manual Troubleshooting Assistance Guide STG 1 is indicated but the unit is not running. • Verify the breakers are not tripped for both the air handler and the outdoor compressor. Reset the breakers. If power is being supplied to the equipment, and the iThermostat indicates the system is On (STG 1 icon displayed), call your HVAC contractor.
- Page 33 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;...
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