Related Manuals for White Rodgers 1F90W-51
Summary of Contents for White Rodgers 1F90W-51
- Page 1 1F90W-51 OPERATION GUIDE 5 Day/2 Day Electronic Digital Thermostat WHITE-RODGERS W H I T E - R O D G E R Operator: Save this booklet for future use!
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Page 2: About Your New Thermostat
About Your New Thermostat . . . Your new White-Rodgers Digital Thermostat uses the technology of a solid-state microcomputer to provide precise time/temperature control. This 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 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 ... 16 PLANNING FOR YOUR NEEDS ENTERING YOUR PROGRAM Set Current Time and Day Enter Heating Program...
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Page 4: Your New Thermostat's Features
YOUR NEW THERMOSTAT’S FEATURES • Separate 5-day (weekday) and 2-day (week- end) setback programming • Simultaneous heat and cool program stor- • Four separate time/temperature settings per 24-hour period • Computed Energy Management Recovery (EMR) • Armchair programming capability • Backlit LCD displays continuous set point, time, and room temperature •... -
Page 5: Operating Your Thermostat
OPERATING YOUR THERMOSTAT Before you begin programming your thermo- stat, you should be familiar with its features and with the display and the location and operation of the thermostat buttons. The information in this section will help you become familiar with your new thermostat so that you can easily program it. -
Page 6: Parts Of The Thermostat
these, then gently pivot the thermostat body down to connect the three pin connectors on the lower portion of the thermostat back. Gently push until the snap connectors engage. DO NOT FORCE OR PRY THE THERMOSTAT, as this may damage the unit. PARTS OF THE THERMOSTAT The Back of The Thermostat Body Turn the thermostat body over. - Page 7 Other than , the buttons are Batteries 6-pin Connector located behind the thermostat door. To open the door, pull the door out from the top, then swing it down on its hinges. On the following pages there are brief descrip- tions of the display and the thermostat buttons.
- Page 8 The Display Continuously displays system mode (HEAT, OFF, COOL, HOLD). During programming, the program period is displayed (MOR, DAY, EVE, or NHT). Alternately displays room temperature (F denotes degrees Fahrenheit and C denotes degrees Celsius) and time of day (A de- notes AM time and P denotes PM time).
- Page 9 5 DAY FAN AUTO TIME SYSTEM HEAT-OFF-COOL TIME BACK - AUTO 2 DAY FAN AUTO 5 DAY VIEW HOLD CLOCK PRGM TEMP PRGM PRGM FAN ON BATTERY...
- Page 10 The Thermostat Buttons Sets the system mode (HEATing, OFF, or COOLing). Selects fan operation (see #6, above). This button is also used to program the fan to run continuously during a program period. Runs display forward or backward through time, day, or anticipation settings during programming.
- Page 11 5 DAY FAN AUTO TIME SYSTEM HEAT-OFF-COOL TIME BACK - AUTO 10 11 12 13 14 15 VIEW HOLD CLOCK PRGM TEMP PRGM PRGM...
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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) — At installation, the thermostat can be set to automatically cal- culate the time it will take to change the temperature to the next program setting. - Page 13 thermostat will automatically revert to the program. • HOLD TEMPERATURE — The thermostat can hold any temperature within its range for an indefinite period, without reverting to HOLD the program. Press TEMP displayed. Then choose the desired hold temperature by pressing The thermostat will hold the room tempera- ture at the selected setting until you press to start program operation again.
- Page 14 CAUTION A cooling anticipation setting of less than 10 may cause decreased compres- sor life. To adjust heat anticipation, press at the same time. The display will show HEAT 5 (this is the factory prepro- grammed heating anticipation setting). You may select any anticipation setting from 2 to 40 (note that for hydronic systems, a minimum anticipation setting of 15 is...
- Page 15 thermostat and the thermostat is operating on battery power only. • 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. •...
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Page 16: Programming Your Thermostat
PROGRAMMING YOUR THERMOSTAT Now you are ready to program your thermostat. This section will help you plan your thermostat's program to meet your needs. For maximum comfort and efficiency, keep the following guidelines in mind when planning your program. • When heating (cooling) your building, pro- gram the temperatures to be cooler (warmer) when the building is vacant or during peri- ods of low activity. - Page 17 2a. What time do the building occupants reach a maximum activity level (using lights, equip- ment, meeting rooms, etc.)? b. What temperature should the building be at this time? These will be your DAY tempera- ture settings. 3a. What time do the building occupants reach a minimum activity level (limited personnel in building)? b.
- Page 18 8a. What time does the last person go to bed at night? b. What temperature should the house be at this time? These will be your NHT (night) temperature settings. Now look at the factory preprogrammed times and temperatures shown below. If this program will suit your needs, simply press running the factory preset program.
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Page 19: Entering Your Program
weekday and weekend programs (for example, you may select 5:00 AM and 70 as the weekday MOR heating start time and temperature, and choose 7:00 AM and 76 as the weekday MOR cooling start time and temperature). Use the following table to plan your program time peri- ods, and the temperatures you want during each period. - Page 20 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 21 SAMPLE Heating/Cooling Schedule Plan WEEKDAY (5 DAY) Start Time Temperature MOR HEAT 5:30 AM DAY HEAT 8:00 AM EVE HEAT 5:00 PM NHT HEAT 10:30 PM MOR COOL 6:30 AM DAY COOL 2:00 PM EVE COOL 5:00 PM NHT COOL 10:30 PM WEEKEND (2 DAY) Start...
- Page 22 2. Press and hold either you reach the correct minutes. 3. Press once. The display window will CLOCK show the hour only. EXAMPLE: 4. Press and hold either you reach the correct hour and AM/PM designation (AM begins at midnight; PM begins at noon).
- Page 23 SYSTEM 1. Press until HEAT is displayed. HEAT-OFF-COOL VIEW 2. Press once. 5 DAY (indicating week- PRGM day program), and MOR, representing the morning heating period, will appear in the display. Also displayed are the currently programmed start time for the MOR period and the currently programmed tempera- ture.
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Page 24: Check Your Programming
9. After entering your weekday heating pro- gram, repeat steps 1 through 8 for your weekend programming (keep in mind that for weekend programming, the display should be changed from 5 DAY to 2 DAY). 10. When you have completed entering your heating program, press Enter Cooling Program CAUTION... - Page 25 SYSTEM 1. Press until HEAT is displayed. HEAT-OFF-COOL VIEW 2. Press and hold to view the heating PRGM period times and temperatures in sequence for weekday, then weekend MOR, DAY, EVE, and NHT program periods. 3. Press PRGM SYSTEM 4. Press until COOL is displayed.
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Page 26: Questions And Answers
QUESTIONS AND ANSWERS 1. How can I permanently change a part of my program? VIEW Press until you reach the time/tem- PRGM perature schedule you want. Then press TIME TIME BACK change the program. MING 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 27 start the normal program function. See PROGRAMMING YOUR THERMOSTAT. 4. What happens if the electricity goes off or is manually shut off? If you have not installed 3 "AA" alkaline batteries, the display will go blank and the program will be lost in approximately one minute.
- Page 28 the thermostat immediately, press until OFF is displayed and replace the ther- mostat on the wall. Then press begin the factory preset program. Or you may reprogram the thermostat, then re- place it on the wall. To prevent further static discharge prob- lems, touch another object to release static build-up before touching the thermostat.
- Page 29 CAUTION If the outside temperature is below 50 F, DO NOT use the button to move the temperature below the setpoint tempera- ture. Property damage may result due to compressor slugging. 9. Why doesn’t the temperature change at the time I programmed? There may be a number of causes for this situation.
- Page 30 continuously during this period. 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. 11. Why is the system turning on and off so frequently (seldom)? The anticipation setting is too low (high).
- Page 31 13. 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 your clock, follow the instruc- tions for setting current time and day. See ENTERING YOUR PROGRAM.
- Page 32 If you need further information on programming or operation, write to us at: White-Rodgers Division, Emerson Electric Co. 9797 Reavis Road St. Louis, MO 63123 Attn: Technical Service Department Part No. 37-5090A 9139...