TXU Energy iThermostat 1F88-300 In-Home User Manual Download Page 17

TXU Energy iThermostat In-Home User Manual 

Programming Your iThermostat™ 

 

 

 

5

1

Programming Heating and Cooling (Continued) 

Q

U I C K  

G

U I D E

 

S

T E P

 

D

E S C R I P T I O N

 

D

I S P L A Y

Press and 

repeat

Steps 2 & 3 

for EVE and 

NHT. 

7

Press

PRGM

 and repeat steps 2 and 3 for the 

EVE and NHT periods. 

Press once. 

8

Press

PRGM

 to move on to the weekend 

schedule. 

Repeat 

steps 2 – 7 

for the 

weekend

schedule. 

9

If you want to program Saturday and Sunday 

together, repeat steps 2 through 7 to program 

the periods of the day for the weekend 

schedule. 

Note:

 If you do not want to program the 2 

weekend days together, press 

PRGM

 multiple 

times until you reach the day of the week you 

want to program. 

Press to 

select the 

desired day. 

10

If you want to program any days of the week 

individually, press 

PRGM

 one or more times 

to select the day you want to program. The 

individual day schedule overrides the weekday 

or weekend schedule for the selected day. 

Repeat 

steps 2 to 7 

for the 

selected 

day.

11

Repeat steps 2 through 7 to program the 

periods of the day for the selected day. 

Repeat 

Steps 10 & 

11.

12

Repeat Steps 10 and 11 for any additional 

days you want to program individually. 

Press once. 

13

Press the 

RUN

 button once to save and exit 

programming. 
Your thermostat is now ready to provide 

maximum comfort and efficiency. 

Summary of Contents for iThermostat 1F88-300

Page 1: ...TXU Energy iThermostat In Home User Manual Model 1F88 300 7 Day Programming...

Page 2: ...duplicated in any form without the prior permission of TXU Energy TXU Energy iThermostat is a trademark of TXU Energy Retail Company LLC TXU Energy iThermostat is manufactured in partnership with Com...

Page 3: ...Display 6 Selecting Heating or Cooling 6 Setting the Current Day and Time 8 10 Resetting the FLTR Display 1 Programming Your iThermostat 11 Programming Tips 12 Planning Your Program 13 Programming He...

Page 4: ...TXU Energy iThermostat In Home User Manual 2...

Page 5: ...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 Gently pull the door down so the buttons are...

Page 6: ...information screen if available or moves to next info screen PRGM Enters thermostat programming mode SYSTEM Selects the system mode cooling heating auto changeover emergency heat heat pumps only or O...

Page 7: ...ays OFF when the HVAC system is turned off System Indicator COOL Air conditioning is active HEAT Heat is active HEAT COOL Auto changeover is active also displayed when system is Off EMER Emergency hea...

Page 8: ...setpoint press or once The setpoint appears in the left center area where the time is normally displayed Note Pressing the up or down arrow key more than once will change the temperature setpoint tem...

Page 9: ...t 2 degrees lower than the cool setpoint Selecting Heating or Cooling Follow this procedure to select the system mode Q U I C K G U I D E P R O C E D U R E D I S P L A Y Press one or more times to sel...

Page 10: ...O N D I S P L A Y Press once 1 Press PRGM The current time displays Press once Press to select the hour 2 Press SELECT The hour flashes Press and hold the up arrow or down arrow button until you reach...

Page 11: ...select the year 6 Press SELECT The year in 2 digit format displays For example 09 for 2009 Press and hold the up arrow or down arrow button until you reach the correct year Press once Press to select...

Page 12: ...er 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 Q U I C K G U I D E P R O C E D U R E D I S...

Page 13: ...g options help you maximize comfort during the times when you are typically at home You can also conserve energy during the times when you are typically away from home or sleeping by allowing the temp...

Page 14: ...ching Between Cooling and Heating At any point in the programming process you can switch between heating and cooling programs by pressing MODE Display of or in Programming Mode If the temperature show...

Page 15: ...r thermostat you can use the charts below to help you plan your program Period Day Day Day Day Start Time Temp Start Time Temp Start Time Temp Start Time Temp HEAT MOR DAY EVE NHT COOL MOR DAY EVE NHT...

Page 16: ...ant to program Temperature will flash Press to select desired temperature 2 Press the up or down arrow button to change the temperature to the desired setting for the MOR period Temperature will flash...

Page 17: ...not want to program the 2 weekend days together press PRGM multiple times until you reach the day of the week you want to program Press to select the desired day 10 If you want to program any days of...

Page 18: ...rammed time period begins the temporary hold ends and the setting for the next time period is in effect If desired however you can manually clear the hold at any time Permanent Holds A permanent hold...

Page 19: ...ashes indicating a temporary hold The system will return to its normal pre programmed schedule at the beginning of the next period of the day HOLD flashes Tip To clear a temporary or permanent hold at...

Page 20: ...sure your display shows the normal display Press the RUN button The HOLD icon disappears indicating that you have cleared the hold This action clears temporary and permanent holds on heating and cooli...

Page 21: ...your configuration to further improve the performance Accessing the Configuration Menu To access the Configuration Menu press the SYSTEM button one or more times to set the system to OFF Simultaneous...

Page 22: ...gured for the number of programmable periods per day The programmable periods can be toggled to 4 2 or 0 by pressing the arrow buttons With PRG 0 selected for non programmable pressing the SYSTEM butt...

Page 23: ...lity in low lighting conditions When the C terminal is powered select backlight CdL ON Default setting to keep the light On continuously Select backlight OFF to keep the light on momentarily after any...

Page 24: ...F and 89 F by pressing the up or down arrow button Limited Cool Range Feature This feature provides a minimum set point temperature for cool The default setting is 45 F It can be changed between 46 F...

Page 25: ...d system mode While the keypad is locked out a simultaneous press of the up and down arrow buttons enters the menu item from any mode instead of only OFF mode When the menu is entered with the keypad...

Page 26: ...ts its power from the indoor air handler If your HVAC equipment has power then contact iThermostat customer service at 1 866 733 1807 for additional support Time is not correct Wait for about one minu...

Page 27: ...al display appears Try to change the temperature again Thermostat program has disappeared Ensure that someone else has not changed the program If no one else has changed the program the schedule may h...

Page 28: ...g settings and reprogram as needed The house is too warm or too cold If the setpoint equals the room temperature press the up or down arrow buttons to adjust the temperature setpoint as desired for a...

Page 29: ...the wall cavity or through the iThermostat The wall cavity heater closet and return air box must be sealed The heating or cooling may be in a temporary or permanent Hold Press RUN to reset the hold an...

Page 30: ...installed with a 5th or common wire Contact your HVAC technician to add a common wire or call iThermostat customer service at 1 866 733 1807 Heating Cooling equipment has an internal fan overrun where...

Page 31: ...OL mode Press the SYSTEM button until the COOL icon is displayed Check whether a curtailment event is currently in progress by looking at the light next to the up and down arrow buttons If the light i...

Page 32: ...ot tripped to the outdoor compressor and that the outdoor compressor and fan is operating Reset the breakers If power is being supplied to the equipment and the iThermostat and the iThermostat indicat...

Page 33: ...HE EXCLUSION 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 hardw...

Reviews: