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OPERATION GUIDE
1F90-71
5 Day/2 Day Electronic
Digital Thermostat
WHITE-RODGERS
Operator: Save this booklet for future use!
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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. If you have questions, write to us at the address shown on the back cover of this manual. 2
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In This Guide . . . YOUR NEW THERMOSTAT’S PROGRAMMING YOUR FEATURES ............................................ 4 THERMOSTAT .................................... 19 OPERATING YOUR THERMOSTAT ......... 5 PLANNING FOR YOUR NEEDS PARTS OF THE THERMOSTAT ENTERING YOUR PROGRAM The Back Of the Thermostat Body Set Current Time and Day The Display Enter Heating Program The Thermostat Buttons Enter Cooling Program OPERATING FEATURES CHECK YOUR PROGRAMMING QUESTIONS AND ANSWERS ................. 29 Opera
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YOUR NEW THERMOSTAT’S FEATURES • Separate 5-day (weekday) and 2-day (week- • Adjustable cycle times end) setback programming • Compressor short cycle protection • Simultaneous heat and cool program storage • Programmable blower control • Four separate time/temperature settings per • Blower delay in the cooling cycle 24-hour period • Audio and visual prompting during operation • Computed Energy Management Recovery • Two hour temperature override (EMR) • Manual program override (HOLD tempera- • Au
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OPERATING YOUR THERMOSTAT Before you begin programming your thermo- The subbase is attached to the wall, but you can stat, you should be familiar with its features and remove the thermostat body for easy program- with the display and the location and operation ming. To remove the thermostat body from the of the thermostat buttons. The information in subbase, grasp the thermostat body and gently this section will help you become familiar with pull it straight out from the subbase. To attach your
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If the word BATTERY is flashing in the PARTS OF THE THERMOSTAT display window, the batteries are low and The Back of The Thermostat Body should be replaced with fresh “AA” Ener- ® gizer alkaline batteries. Turn the thermostat body over. On the back are ® the 3 “AA” Energizer alkaline batteries and the CAUTION ! two option switch groups (A and B). ® 1. The “AA” Energizer alkaline batteries pro- SYSTEM Use to turn the thermostat OFF SWITCH vide power to the thermostat when the before removing the
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W14 W22 Other than and , the buttons are Batteries 6-pin connector located behind the thermostat door. To open the door, put your fingernail in the indentation at the top of the door, then pull the door out from the top and swing it down on its hinges. On the following pages there are brief descrip- tions of the display and the thermostat buttons. (Group A) (Group B) Option switches 3-pin Connector BACK OF THERMOSTAT BODY 7
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The Display The word BATTERY flashes on the display 5 Continuously displays system mode (HEAT, when the “AA” alkaline batteries are weak 1 and should be replaced. The word BAT- OFF, COOL, AUTO, HOLD). During pro- TERY is displayed continuously (non-flash- gramming, the program period is displayed ing) when thermostat is running on battery (MOR, DAY, EVE, or NHT). power only. Alternately displays room temperature (F 2 FAN ON is displayed when the blower is 6 denotes degrees Fahrenheit and C denot
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5 DAY FAN AUTO WHITE-RODGERS DIGITAL COMFORT SET II TIME SET VIEW HOLD SYSTEM FWD CLOCK PRGM TEMP SWITCH HEAT-OFF-COOL-AUTO FAN TIME SET RUN ADV BACK DAY PRGM PRGM SWITCH ON-AUTO 1 2 3 3 2 DAY FAN AUTO 5 DAY FAN ON BATTERY 4 6 4 6 2 5 9
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The Thermostat Buttons Used to initiate or review thermostat pro- 12 Sets the system mode (HEATing, OFF, gramming. 7 COOLing, or AUTOmatic changeover). Used to start program operation after pro- 13 gramming. Also used to return thermostat to Selects fan operation (see #6, above). This 8 program operation after being in HOLD button is also used to program the fan to run mode. continuously during a program period. Used to manually override programming to 14 Runs display forward or backward through
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(Blue arrow) Lowers temperature setting The red indicator light glows whenever heat- 17 18 (40°F or 4°C minimum). ing, cooling, or fan are in operation. 17 16 18 5 DAY FAN AUTO WHITE-RODGERS DIGITAL COMFORT SET II SYSTEM TIME SET VIEW HOLD 7 FWD CLOCK PRGM TEMP SWITCH HEAT-OFF-COOL-AUTO FAN TIME SET RUN ADV 8 BACK DAY PRGM PRGM SWITCH ON-AUTO 9 10 11 12 13 14 15 11
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next program period, beginning at 6:00 AM, OPERATING FEATURES you have programmed a temperature of Now that you are familiar with the thermostat 70°F. The thermostat will automatically ac- display and buttons, read the following informa- tivate the heating system at about 5:00 AM, tion to learn about the many features of the so that the programmed 70°F temperature thermostat. is reached by about 6:00 AM. • COMPUTED ENERGY MANAGEMENT This feature is controlled by Group B option RECOVERY (EMR) — T
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switch to the OFF position (see figure be- option switch #1 should be OFF and option low). Leave the battery out of the thermostat switch #2 should be ON.) To enable auto- for at least two minutes, to allow the ther- matic changeover, you must move Group B mostat to reset itself. See AUTOMATIC option switch #1 to the ON position and CHANGEOVER to determine proper posi- switch #2 to the OFF position. Turn off 24 tions of Group B option switches #1 and #2. VAC power to the thermostat. Then remove
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stat, if necessary, put the thermostat back NOTE on the wall, and restore 24 VAC power. To set the thermostat for automatic changeover In the AUTO mode, the thermostat will not allow the temperature separation between the high- SYSTEM after programming, press to set the SWITCH est heat setting and the lowest cool setting to be thermostat to AUTO (the setpoint tempera- less than 1°F. For example, if the highest heat ture display is blank in the AUTO mode). setting is 76°F, the lowest cool settin
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thermostat will override current program- • “ADVANCE PROGRAM” KEY — Press ming and keep the room temperature at the ADV to change the thermostat to the next PRGM selected temperature for two hours. After program period. This will temporarily over- two hours, the thermostat will automatically ride the program, until the next program revert to the program. period begins (for example, pressing this • HOLD TEMPERATURE — The thermostat key while in the DAY program will advance can hold any temperatu
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(long cycles), you may want to adjust the sufficient. If the heat cycles are too short, anticipation setting. TIME press to increase the cycle time. If the FWD CAUTION ! TIME heat cycles are too long, press to de- BACK A cooling anticipation setting of less than crease the cycle time. To set cooling antici- 10 may cause decreased compressor life. SET SET pation, press and at the same time CLOCK DAY SET To adjust heat anticipation, press and CLOCK again. The display will show COOL 14 (fac- t
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24 VAC power is not being supplied to the SYSTEM b) Pressing to change operating SWITCH thermostat and the thermostat is operating modes. on battery power only. c) Pressing , creating a call for COOL • AUDIO PROMPTING — Each time you too soon after a previous call. press a button, the thermostat will beep. • TOTAL KEYPAD LOCKOUT — When Group • BACKLIT DISPLAY — When you press A option switch #1 is in the total keypad any button on the thermostat, the display is lockout position (ON), programs c
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Total Keypad Lockout SET HOLD ADV DAY TEMP PRGM Switch #1 ON ON Group A Switch #2 OFF Option Switches NOTE 12 Programming should be completed and batter- To enable total keypad lockout, move Group ies should be installed before changing Group A option switch #1 to ON (see figure above). A option switches #1 or #2. To disable total keypad lockout, move op- Limited Temperature Range tion switch #1 to OFF. ON Switch #1 OFF Group A • LIMITED TEMPERATURE RANGE — Option Switch #2 ON Switches When Grou
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PROGRAMMING YOUR THERMOSTAT Now you are ready to program your thermostat. thermostat for a commercial application (a store, This section will help you plan your thermostat’s office building, etc.), answer questions 1 through program to meet your needs. 4. If you are using the thermostat in your home, answer questions 5 through 8. For maximum comfort and efficiency, keep the following guidelines in mind when planning your FOR COMMERCIAL APPLICATIONS: program. 1a. What time does the first person a
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PROGRAMMING 3a. What time do the building occupants reach 6a. What time does the last person leave the a minimum activity level (limited personnel house in the morning? in building)? b. What temperature should the house be at b. What temperature should the building be at this time? These will be your DAY tempera- this time? These will be your EVE (evening) ture settings. temperature settings. 7a. What time does the first person arrive home 4a. What time does the building become va- in the even
