White Rodgers 1F90W-51 User Manual

OPERATION GUIDE5 Day/2 Day ElectronicDigital Thermostat1F90W-51Operator: Save this booklet for future use!WHITE-RODGERSWHITE-RODGERS

10Used to initiate or review thermostat pro-gramming.Used to start program operation after pro-gramming. Also used to return thermostatto program ope

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12OPERATING FEATURESNow that you are familiar with the thermostatdisplay and buttons, read the following informa-tion to learn about the many features

13thermostat will automatically revert tothe program.• HOLD TEMPERATURE — The thermostatcan hold any temperature within its rangefor an indefinite per

14A cooling anticipation setting of lessthan 10 may cause decreased compres-sor life.To adjust heat anticipation, press SETCLOCKand SETDAY at the same

15thermostat and the thermostat is operatingon battery power only.• AUDIO PROMPTING — Each time youpress a button, the thermostat will beep.• BACKLIT

16Now you are ready to program your thermostat.This section will help you plan your thermostat'sprogram to meet your needs.For maximum comfort an

172a. What time do the building occupants reacha maximum activity level (using lights, equip-ment, meeting rooms, etc.)?b. What temperature should the

188a. What time does the last person go to bed atnight?b. What temperature should the house be atthis time? These will be your NHT (night)temperature

19weekday and weekend programs (for example,you may select 5:00 AM and 70° as the weekdayMOR heating start time and temperature, andchoose 7:00 AM and

2About Your New Thermostat . . .Your new White-Rodgers Digital Thermostat uses the technology of a solid-state microcomputerto provide precise time/te

20WEEKDAY (5 DAY)WEEKEND (2 DAY)StartTime TemperatureStartTime TemperatureMOR HEATDAY HEATEVE HEATNHT HEATMOR COOLDAY COOLEVE COOLNHT COOLHeating/Cool

21WEEKDAY (5 DAY)WEEKEND (2 DAY)StartTime TemperatureStartTime TemperatureMOR HEATDAY HEATEVE HEATNHT HEATMOR COOLDAY COOLEVE COOLNHT COOLSAMPLEHeatin

222. Press and hold either TIMEFWD or TIMEBACK untilyou reach the correct minutes.3. Press SETCLOCK once. The display window willshow the hour only.E

231. Press SYSTEMHEAT-OFF-COOL until HEAT is displayed.2. Press VIEWPRGM once. 5 DAY (indicating week-day program), and MOR, representing themorning

249. After entering your weekday heating pro-gram, repeat steps 1 through 8 for yourweekend programming (keep in mind thatfor weekend programming, the

251. Press SYSTEMHEAT-OFF-COOL until HEAT is displayed.2. Press and hold VIEWPRGM to view the heatingperiod times and temperatures in sequencefor week

261. How can I permanently change a part ofmy program?Press VIEWPRGM until you reach the time/tem-perature schedule you want. Then pressTIMEFWD or TI

27start the normal program function. SeePROGRAMMING YOUR THERMOSTAT.4. What happens if the electricity goes offor is manually shut off?If you have no

28the thermostat immediately, press SYSTEMHEAT-OFF-COOLuntil OFF is displayed and replace the ther-mostat on the wall. Then press RUNPRGM tobegin the

29See OPERATING YOUR THERMO-STAT.• You have programmed the incorrect dayor time. Check your programming (besure that the times you programmed arecor

3PROGRAMMING YOURTHERMOSTAT ... 16PLANNING FOR YOUR NEEDSENTERING YOUR PROGRAMSet Current Time and DayEnter Heating P

30continuously during this period. SeePROGRAMMING YOUR THERMO-STAT.• The blower delay feature is operating.This energy saving feature continues toblo

3113. I live in an area where daylight savingstime is observed. How do I change thethermostat clock twice a year withoutaffecting thermostat programm

Part No. 37-5090A9139If you need further information on programming or operation, write to us at:White-Rodgers Division, Emerson Electric Co.9797 Reav

4• Separate 5-day (weekday) and 2-day (week-end) setback programming• Simultaneous heat and cool program stor-age• Four separate time/temperature sett

5OPERATING YOUR THERMOSTATSUBBASETHERMOSTATBODYBefore you begin programming your thermo-stat, you should be familiar with its features andwith the dis

6for approximately a year. If power loss is longenough for the program to be lost, the thermo-stat will automatically return to the factory pro-gramm

7Other than and , the buttons arelocated behind the thermostat door. To open thedoor, pull the door out from the top, then swingit down on its hin

8The word BATTERY flashes on the displaywhen the "AA" alkaline batteries are weakand should be replaced. The word BAT-TERY is displayed con

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