Related Manuals for White Rodgers 1F91-71
Summary of Contents for White Rodgers 1F91-71
- Page 1 1F91-71 OPERATION GUIDE Multi-stage Electronic Digital Thermostat WHITE-RODGERS Operator: Save this booklet for future use!
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Page 2: About Your New Thermostat
About Your New Thermostat . . . Your new Digital COMFORT SET II Multi-stage Thermostat uses the technology of a solid-state microcomputer to provide precise time/temperature control. The COMFORT SET II Thermostat offers you the flexibility to design heating and cooling programs that fit your needs. Please read this manual thoroughly before operating or programming your thermostat. -
Page 3: Table Of Contents
YOUR NEW THERMOSTAT’S FEATURES ... 4 OPERATING YOUR THERMOSTAT ... 5 PARTS OF THE THERMOSTAT The Back Of the Thermostat Body The Display The Thermostat Buttons OPERATING FEATURES In This Guide . . . PROGRAMMING YOUR THERMOSTAT ... 17 PLANNING FOR YOUR NEEDS ENTERING YOUR PROGRAM Set Current Time and Day Enter Heating Program... -
Page 4: Your New Thermostat'sfeatures
YOUR NEW THERMOSTAT’S FEATURES • Computed Energy Management Recovery (EMR) • Automatic changeover (operator selectable) • Five-day/two-day programming capability • Simultaneous heat and cool program stor- • Preprogrammed temperature control • Four separate time and temperature set- tings per 24-hour period •... -
Page 5: Operating Your Thermostat
OPERATING YOUR THERMOSTAT Before you begin programming your new ther- mostat, you should be familiar with its fea- tures and with the display and the location and operation of the thermostat buttons. The in- formation in this section will help you become familiar with your thermostat so that you can easily program it. -
Page 6: Parts Of The Thermostat
PARTS OF THE THERMOSTAT The Back of the Thermostat Body Turn the thermostat body over. On the back are ® the 9 volt Energizer alkaline battery and the option switches. ® 1. The 9 volt Energizer alkaline battery pro- vides power to the thermostat when the 24 VAC power is interrupted (for example, when you remove the thermostat from the wall for programming). - Page 7 light and audio prompting, which work only on 24 VAC power. If the word BAT is dis- played continuously (non-flashing), the ther- mostat is not being supplied with 24 VAC power and is being powered by the battery alone. CAUTION SYSTEM to turn thermostat OFF be- SWITCH...
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Page 8: The Display
Other than located behind the thermostat door. To open the door, use your fingernail in the indentation at the top center of the door. Pull the door out, then swing the door down on its hinges. Following are brief descriptions of the display and the thermostat buttons. - Page 9 5 DAY W H I T E - R O D G E R S DIGITAL MULTI-STAGE COMFORT-SET SYSTEM TIME SWITCH HEAT/OFF/COOL/AUTO TIME BACK SWITCH /AUTO 2 DAY 5 DAY VIEW HOLD CLOCK PRGM TEMP PRGM PRGM...
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Page 10: The Thermostat Buttons
The Thermostat Buttons 7 Sets the system mode (HEATing, OFF, COOLing, or AUTOmatic changeover [user selectable feature]). 8 Selects fan operation (see #6, above). This button is also used to program the fan to run continuously during a program period. 9 Runs display forward or backward through time, day, or anticipation settings during programming. - Page 11 18 The red light is on when the 1st stage heating/cooling system is operating. The yellow light is on when the 2nd or 3rd stage heating/cooling system is operating. 16 17 5 DAY W H I T E - R O D G E R S DIGITAL MULTI-STAGE COMFORT-SET SYSTEM TIME...
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Page 12: Operating Features
OPERATING FEATURES Now that you are familiar with the thermostat display and buttons, read the following informa- tion to learn about the many features of the thermostat. • COMPUTED ENERGY MANAGEMENT RECOVERY (EMR) - The thermostat’s mi- crocomputer automatically calculates the time it will take to change the temperature to the next program setting. - Page 13 pencil or small screwdriver to move the switch to the ON position (see figure at right). Leave the battery out of the thermo- stat for at least two minutes, to allow the thermostat to reset itself. DO NOT MOVE ANY OTHER OPTION SWITCH, as it may affect thermostat operation.
- Page 14 • TWO HOUR TEMPERATURE OVER- RIDE — Press display shows the temperature you want. The thermostat will override current pro- gramming and keep the room temperature at the selected temperature for two hours. After two hours, the thermostat will auto- matically revert to the program.
- Page 15 too often (short cycles) or not often enough (long cycles), you may want to adjust the anticipation setting. CAUTION A cooling anticipation setting of less than 10 may cause decreased com- pressor life. To adjust anticipation, press at the same time. The display will show HEAT 8 (this is the factory preprogrammed heating anticipation setting).
- Page 16 • AUDIO PROMPTING — Each time you press a button, the thermostat will beep. • BACKLIT DISPLAY — When you press any button on the thermostat, the display is lit for approximately eight seconds (this feature works only when the thermostat is attached to the wall and 24 VAC power is present to the thermostat).
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Page 17: Programming Your Thermostat
is displayed. To override constant fan, press until FAN SWITCH played. PROGRAMMING YOUR THERMOSTAT Now you are ready to program your thermostat. This section will help you plan and program your thermostat to meet your needs. For maximum comfort and efficiency, keep the following guidelines in mind when planning your program. - Page 18 First, you should answer the following ques- tions to help you decide what your needs are. If you are using the thermostat for a commercial application (a store, office building, etc.), an- swer questions 1 through 4. If you are using the thermostat in your home, answer questions 5 through 8.
- Page 19 b. What temperature should the house be at this time? These will be your MOR (morn- ing) temperature settings. 6a. What time does the last person leave the house in the morning? b. What temperature should the house be at this time? These will be your DAY tempera- ture settings.
- Page 20 Heating Program for ALL days of the Week: PERIOD Determine the time periods and heating and cooling temperatures for your weekday pro- gram. You must program 4 periods for each day (MOR, DAY, EVE, and NHT). However, you may use the same heating and cooling tem- peratures for consecutive time periods.
- Page 21 Heating/Cooling Schedule Plan WEEKEND (2 DAY) WEEKDAY (5 DAY) Start Start Time Temperature Time Temperature MOR HEAT DAY HEAT EVE HEAT NHT HEAT MOR COOL DAY COOL EVE COOL NHT COOL...
- Page 22 MOR HEAT DAY HEAT EVE HEAT NHT HEAT MOR COOL DAY COOL EVE COOL NHT COOL SAMPLE Heating/Cooling Schedule Plan WEEKDAY (5 DAY) Start Time Temperature 5:30 AM 7:30 AM 8:00 AM 2:00 PM 4:30 PM 6:00 PM 11:00 PM 12:00 AM 8:00 AM 8:00 AM...
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Page 23: Entering Your Program
ENTERING YOUR PROGRAM Follow these steps to enter the heating and cooling programs you have selected. NOTE We recommend that you remove the thermo- stat from the wall for programming (especially for entering cooling programming). A fresh 9 ® volt Energizer alkaline battery must be in- stalled to perform off-wall programming. -
Page 24: Enter Heating Program
5. Press once. The display will show the day of the week as an abbreviation (MO for Monday, TU for Tuesday, etc.). 6. Press and hold either reach the current day of the week. 7. Press once. The display will show the PRGM correct time and room temperature alter- nately. - Page 25 This display window shows that for the weekday MOR period, the start time is 5:00 AM, and 70 is the programmed tempera- ture (this example reflects factory prepro- gramming). 3. To change the displayed start time to your selected start time for weekday MOR heat TIME program, press lected time appears.
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Page 26: Enter Cooling Program
Enter Cooling Program CAUTION If outside temperature is below 50 F, we recommend that you remove the ther- mostat from the wall before proceeding with the following steps to program cool- ing temperatures. Personal injury or property damage may occur due to air conditioner compressor slugging. - Page 27 3. Press PRGM SYSTEM 4. Press until COOL is displayed. SWITCH 5. Repeat step 2 to check cooling tempera- tures. 6. Press to begin program operation. PRGM YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED AND READY TO AUTOMATI- CALLY PROVIDE MAXIMUM COMFORT AND EFFICIENCY! SYSTEM Press...
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Page 28: Questions And Answers
QUESTIONS AND ANSWERS 1. How can I permanently change a part of my program? Press VIEW until you reach the time/tem- PRGM perature schedule you want. Then press TIME the program. See PROGRAMMING YOUR THERMOSTAT. 2. How can I have no change in tempera- ture from one time period to another? Simply select the same temperature for each consecutive time period. - Page 29 programming at this point, press start the normal program function. See PRO- GRAMMING YOUR THERMOSTAT. 4. What happens if the electricity goes off or is manually shut off? If you have not installed a 9 volt alkaline battery, the display will go blank and the program will be lost in approximately one minute.
- Page 30 the wall and disconnect the battery. Wait about one minute, then reconnect the bat- tery. The thermostat will revert to the fac- tory preset program until you reprogram the thermostat. If you don’t want to reprogram the thermostat immediately, press until OFF is displayed and replace the ther- mostat on the wall.
- Page 31 8. Why doesn’t the display light come on when I press a button? Why don’t I hear a beep when I press a button? The display light and audio prompting (beep) only work when the thermostat is on the wall and 24 VAC power is present to the ther- mostat.
- Page 32 CAUTION If the outside temperature is below 50 F, DO NOT use the the temperature below the setpoint tem- perature. Property damage may result due to compressor slugging. 11. Why doesn’t the temperature change at the time I programmed? There may be a number of causes for this situation.
- Page 33 12. Why does the blower fan keep running after the system has turned off? • You have programmed the fan to run continuously during this period. See PROGRAMMING YOUR THERMO- STAT. • The blower delay feature is operating. This energy saving feature continues to blow conditioned air through the ducts after the system has turned off, rather than letting the air dissipate.
- Page 34 15. I live in an area where daylight savings time is observed. How do I change the thermostat clock twice a year without affecting thermostat programming? To change the clock, follow the instructions for setting current time and day (see EN- TERING YOUR PROGRAM).
- Page 35 If the thermostat maintains programming, SYSTEM press until OFF is displayed, put SWITCH the thermostat back on the wall, press SYSTEM again to select the operating mode SWITCH you want, then press to start program PRGM operation. If the program is lost, reprogram the thermostat.
- Page 36 If you need further information on programming or operation, you may write to our Technical Service Department at the address shown below. WHITE-RODGERS DIVISION EMERSON ELECTRIC CO. 9797 REAVIS ROAD ST. LOUIS, MISSOURI 63123-5398 Part No. 37-4739C Replaces 37-4739B 9606...