OPERATION GUIDE

7-Day Programmable ElectronicDigital Thermostat

1F97-51

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 microcomputerto provide precise time/temperature control. This thermostat offers you the flexibility to designheating and cooling programs that fit your needs.

Please read this manual thoroughly before operating or programming your thermostat. If you havequestions, write to us at the address shown on the back cover of this manual.

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Operator: Save thisbooklet for future use!

ENTERING YOUR PROGRAMSet Current Time and DaySelect Heating and Cooling TemperaturesProgram Heating/Cooling Times and

Heating TemperaturesProgram Cooling TemperaturesUsing the HOLD/COPY Button

CHECK YOUR PROGRAMMINGQUESTIONS AND ANSWERS ................ 31

YOUR NEW THERMOSTAT’SFEATURES ........................................... 4

OPERATING YOUR THERMOSTAT ........ 5PARTS OF THE THERMOSTAT

The Back Of the Thermostat BodyThe DisplayThe Thermostat Buttons

OPERATING FEATURESPROGRAMMING YOUR

THERMOSTAT ................................... 16PLANNING FOR YOUR NEEDS

In This Guide . . .

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• Seven independent day programming

• Simultaneous heat and cool program storage

• Four separate time/temperature settings per24-hour period

• Computed Energy Management Recovery(EMR)

• Armchair programming capability

• Backlit LCD displays continuous set point,time, and room temperature

• 1.5 volt “AA” Energizer® alkaline batterybackup

• Preprogrammed temperature control

YOUR NEW THERMOSTAT’S FEATURES

• Adjustable cycle times

• Compressor short cycle protection

• Programmable blower control

• Blower delay in the cooling cycle

• Audio and visual prompting during operation

• Two hour temperature override

• Manual program override (HOLD tem-perature)

• °F/°C convertibility

• Temperature range 40° to 99°F

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OPERATING YOUR THERMOSTAT

Before you begin programming your thermo-stat, you should be familiar with its featuresand with the display and the location andoperation of the thermostat buttons. The in-formation in this section will help you becomefamiliar with your new thermostat so that youcan easily program it.Your thermostat consists of two parts: the ther-mostat body and the subbase .

Remove power from the system at thecircuit breaker/fuse box before remov-ing or attaching the thermostat body.Equipment damage and/or personal in-jury could occur.

The subbase is attached to the wall, but you canremove the thermostat body for easy program-ming. To remove the thermostat body from thesubbase, grasp the thermostat body and gentlypull it straight out from the subbase. To attachthe thermostat body, line up the two terminalpins on the lower section of the thermostat backwith the matching connector on the subbase.Insert these, then gently pivot the thermostatbody up to connect the six pin connectors on theupper portion of the thermostat back. Gentlypush until the snap connectors engage. DONOT FORCE OR PRY THE THERMOSTAT, asthis may damage the unit.

CAUTION!

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PARTS OF THE THERMOSTAT

The Back of The Thermostat Body

Turn the thermostat body over. On the back arethe 3 “AA” Energizer® alkaline batteries.The “AA” Energizer® alkaline batteries providepower to the thermostat when the 24 VAC poweris interrupted (for example, when you removethe thermostat from the wall for programming).Fresh batteries will maintain the stored programfor approximately a year. If power loss is longenough for the program to be lost, the thermo-stat will automatically return to the factory pro-grammed temperatures (64°F heating and 82°Fcooling) when power is restored. You mustreprogram the thermostat if this happens.If the word BATTERY is flashing in the display

BACK OF THERMOSTAT BODY

2-pin connector

6-pin connector Batteries

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S3

window, the batteries are low and should bereplaced with fresh “AA” Energizer® alkalinebatteries.

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Use SYSTEMSWITCH to turn thermostat OFF be-

fore removing thermostat from the wallto replace the batteries.

Other than and , the buttons arelocated behind the thermostat door. To open thedoor, use your fingernail in the indentation at thetop of the door to pull it out from the top, thenswing it down on its hinges.

On the following pages there are brief descrip-tions of the display and the thermostat buttons.

CAUTION!

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The Display

1 Continuously displays system mode (HEAT,

OFF, COOL, HOLD). During programming,the day of the week is displayed (MON,TUE, WED, etc.).

2 Alternately displays room temperature (F

denotes degrees Fahrenheit and C denotesdegrees Celsius) and time of day (A de-notes AM time and P denotes PM time).

3 Displays the setpoint temperature.

4 In VIEW TEMP mode, A, B, C, and D are the

1st, 2nd, 3rd, and 4th heating or coolingtemperatures available for programming.

5 The word BATTERY flashes on the display

when the “AA” alkaline batteries are weakand should be replaced. The word BAT-TERY is displayed continuously (non-flash-ing) when thermostat is running on batterypower only.

6 FAN ON is displayed when the blower is

operating continuously. FAN AUTO is dis-played during automatic fan operation (whenthe blower cycles with the heating or coolingsystem).

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A BFAN AUTO FAN ON

FAN AUTO

BATTERY

SYSTEMSWITCH

FANSWITCH

HEAT-OFF-COOL

TIMEFWD

TIMEBACK

SETCLOCK

ADVDAY

VIEWPRGM

VIEWTEMP

HOLDCOPY

RUNPRGM

ON-AUTO

WHITE-RODGERS DIGITAL COMFORT SET II

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6 6 2 5

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The Thermostat Buttons

7 Sets the system mode (HEATing, OFF, or

COOLing).

8 Selects fan operation (see #6, above). This

button is also used to program the fan to runcontinuously during a program period.

9 Runs display forward or backward through

time, day, or anticipation settings duringprogramming.

10 Used with TIMEFWD and TIME

BACK to set current time

and day of the week.

11 Used during programming to set the day of

the week to be programmed. Also used withSET

CLOCK to enter anticipation setting mode.

12 Used to initiate or review thermostat pro-

gramming.

13 Used to select heating and cooling tem-

peratures to be programmed.

14 Used to manually override programming to

hold at a selected temperature (when HOLDis displayed). Also used to copy one day’sprogramming into another (when COPY isdisplayed).

15 Used to start program operation after pro-

gramming. Also used to return thermostat toprogram operation after being in HOLD mode.

16 (Red arrow) Raises temperature setting

(99°F or 37°C maximum).

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FAN AUTO

SYSTEMSWITCH

FANSWITCH

HEAT-OFF-COOL

TIMEFWD

TIMEBACK

SETCLOCK

ADVDAY

VIEWPRGM

VIEWTEMP

HOLDCOPY

RUNPRGM

ON-AUTO

WHITE-RODGERS DIGITAL COMFORT SET II

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9 10 11 12 13 14 15

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7

16 18

17 (Blue arrow) Lowers temperature setting

(40°F or 4°C minimum).18 The red indicator light glows whenever heat-

ing, cooling, or fan are in operation.

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

• COMPUTED ENERGY MANAGEMENTRECOVERY (EMR) — The thermostat’smicrocomputer can be set to automaticallycalculate the time it will take to change thetemperature to the next program setting.Then the thermostat will activate the heat-ing or cooling system to change the tem-perature so that the desired temperature isreached at the beginning of the next pro-gram period. As an example of this feature,assume that you have programmed yourthermostat to provide an overnight heatingtemperature of 62°F, and that during thenext program period, beginning at 6:00 AM,

you have programmed a temperature of70°F. The thermostat will automatically ac-tivate the heating system at 5:00 AM, so thatthe programmed 70°F temperature isreached by about 6:00 AM.

The thermostat is configured at the factoryso that this feature is disabled. If you wish tohave this feature, refer to the installationinstructions for this thermostat, or contactyour local heating/cooling contractor.

• TWO HOUR TEMPERATURE OVERRIDE— Press or until the displayshows the temperature you want. The ther-mostat will override current programmingand keep the room temperature at the se-lected temperature for two hours. After twohours, the thermostat will automatically re-vert to the program.

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CAUTION!

• HOLD TEMPERATURE — The thermostatcan hold any temperature within its rangefor an indefinite period, without reverting to

the program. Press HOLDCOPY . HOLD will be dis-

played. Then choose the desired hold tem-perature by pressing or . Thethermostat will hold the room temperature

at the selected setting until you press RUNPRGM to

start program operation again. This featureis ideal for energy conservation when thebuilding is unoccupied for an extended pe-riod of time.

• °F/°C CONVERTIBILITY — Press TIMEFWD and

TIMEBACK at the same time until the temperature

display is in °C (Celsius). To display °F,repeat the process.

• ADJUSTABLE HEATING AND COOLINGCYCLE TIMES (ANTICIPATION) — If theheating/cooling system is turning on and offtoo often (short cycles) or not often enough(long cycles), you may want to adjust theanticipation setting.

A cooling anticipation setting of less than10 may cause decreased compressor life.

To adjust heat anticipation, press SETCLOCK and

ADVDAY at the same time. The display will show

HEAT 5 (this is the factory preprogrammedheating anticipation setting). You may se-lect any anticipation setting from 4 to 40(note that for hydronic systems, a mini-mum anticipation setting of 15 is recom-mended ).

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Whenever adjusting anticipation, increaseor decrease the displayed number by onlyone or two digits, then let the system run fora while to see if the adjustment is sufficient.

If the heat cycles are too short, press TIMEFWD to

increase the cycle time. If the heat cycles

are too long, press TIMEBACK to decrease the

cycle time. To set cooling anticipation,

press SETCLOCK and ADV

DAY at the same time again.

The display will show COOL 14 (factorypreprogrammed cooling anticipation). Use

the TIMEFWD and TIME

BACK buttons to adjust anticipa-

tion. Press RUNPRGM to return to your program.

• LOW BATTERY INDICATOR — The three“AA” alkaline batteries will maintain thermo-stat programming for approximately oneyear if power to the thermostat fails. Theword BATTERY will flash on the display ifthe “AA” alkaline batteries are low and shouldbe replaced. The thermostat will also makea beeping sound every five minutes whenbatteries need replacing. To override thebeeping, press any button on the keypad.The beeping will stop for 15 hours, then startagain. You may again stop the beeping bypressing any button on the keypad. Afterturning the beep off three times, the thermo-stat will quit beeping. However, you shouldalways change the batteries as soon aspossible to ensure that programming willnot be lost in the event of a power outage.You should also change the batteries atleast once a year.

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The word BATTERY will be displayed con-tinuously (non-flashing) when 24 VAC poweris not being supplied to the thermostat and thethermostat is operating on battery power only.

• AUDIO PROMPTING — Each time youpress a button, the thermostat will beep.

• BACKLIT DISPLAY — When you pressany button on the thermostat, the display islit for approximately eight seconds.

• SYSTEM INDICATOR LIGHT — The redlight on the upper right part of the thermostatindicates system operation (see PARTS OFTHE THERMOSTAT).

• COMPRESSOR SHORT CYCLE PROTEC-TION — To protect your compressor frompotential damage due to rapid cycling, thisthermostat has a built-in delay of 5 minutesbetween cooling cycles. The following maycause a time delay in COOL:

a) Return of power after a power outage.

b) Pressing SYSTEMSWITCH to change operating

modes.

c) Pressing , creating a call for COOLtoo soon after a previous call.

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Now you are ready to program your thermostat.This section will help you plan your thermostat’sprogram to meet your needs.For maximum comfort and efficiency, keep thefollowing guidelines in mind when planning yourprogram.

• 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.

• During early morning hours, the need forcooling is usually minimal.

PLANNING FOR YOUR NEEDSFirst, answer the following questions to help youdecide what your needs are. If you are using the

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PROGRAMMING YOUR THERMOSTAT

thermostat for a commercial application (a store,office building, etc.), answer questions 1 through4. If you are using the thermostat in your home,answer questions 5 through 8.FOR COMMERCIAL APPLICATIONS:1a. What time does the first person arrive at the

building in the morning?

b. What temperature should the building be atthis time? (heating? cooling?) These will beyour MOR (morning) temperature settings.

2a. What time do the building occupants reacha maximum activity level (using lights, equip-ment, meeting rooms, etc.)?

b. What temperature should the building be atthis time? These will be your DAY tempera-ture settings.

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3a. What time do the building occupants reacha minimum activity level (limited personnelin building)?

b. What temperature should the building be atthis time? These will be your EVE (evening)temperature settings.

4a. What time does the building become vacant?

b. What temperature should the building be atthis time? These will be your NHT (night)temperature settings.

IN YOUR HOME:5a. What time does the first person get up in the

morning?

b. What temperature should the house be atthis time? These will be your MOR (morn-ing) temperature settings.

6a. What time does the last person leave thehouse in the morning?

b. What temperature should the house be atthis time? These will be your DAY tempera-ture settings.

7a. What time does the first person arrive homein the evening?

b. What temperature should the house be atthis time? These will be your EVE (evening)temperature settings.

8a. 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 settings.

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However, you may use the same heatingand cooling temperatures for consecutivetime periods. Also keep in mind that, for anygiven day, you can only program one set oftimes for both heating and cooling (for ex-ample, if you select 5:00 AM to begin heat-ing period 1 on Monday, then your coolingperiod 1 for Monday will also begin at 5:00AM). However, you may choose differenttime periods for each day separately (forexample, heating/cooling period 1 on Mon-day may begin at 5:00 AM, but heating/cooling period 1 on Saturday may begin at

Heating Program forALL days of the Week:

Cooling Program forALL Days of the Week:

PERIOD TIME TEMP PERIOD TIME TEMP1234

5:00 AM9:00 AM4:00 PM

10:00 PM

70707064

1234

5:00 AM9:00 AM4:00 PM

10:00 PM

78827878

FACTORY PREPROGRAMMING CHARTNow look at the factory preprogrammed timesand temperatures shown at right. If this program

will suit your needs, simply press RUNPRGM to begin

running the factory preset program.If you want to change the preprogrammed timesand temperatures, follow these steps.1. Determine the heating and cooling tempera-

tures you want to use. You may select up tofour heating temperatures (HEAT A , HEAT B ,HEAT C, and HEAT D), and up to four coolingtemperatures (COOL A , COOL B , COOL C,and COOL D). Use the table on the followingpage to write down the temperatures youhave selected.

2. Determine the time periods during whichyou will program the temperatures you havejust selected. You must program four peri-ods for each day (periods 1, 2, 3, and 4).

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TemperatureDesignation

FactoryPreprogrammed

Temperature

YourSelected

Temperatures*

HEAT A

HEAT B

HEAT C

HEAT D

70

70

70

64

COOL A

COOL B

COOL C

COOL D

78

82

78

78* You may only program heating temperatures you have selected

into the heating program and cooling temperatures into the cooling program (for example, you cannot program the COOL A temperature into your heating program). You may program the temperatures you choose in any order, and you may use the same temperature in consecutive program periods (for example, you may program period 1 with temperature B and periods 2, 3, and 4 with temperature A). You do not have to use all possible temperature choices (for example, you may want to select temperatures for HEAT A and HEAT B only – in this case, the HEAT C and HEAT D temperatures would stay the same as previously programmed).

9:00 AM). Use the table on the followingpage to plan your program time periods, andthe temperatures you want during eachperiod. You may also want to look at thesample program table to get an idea of howthe thermostat can be programmed.

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Period 1 Period 2 Period 3 Period 4

TimeHeat

Temp.Cool

Temp. TimeHeat

Temp.Cool

Temp. TimeHeat

Temp.Cool

Temp. TimeHeat

Temp.Cool

Temp.

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

Heating/Cooling Schedule Plan

THIS THERMOSTAT ALLOWS ONE SET OF TIMES FOR BOTH HEATING AND COOLING

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Period 1 Period 2 Period 3 Period 4

TimeHeat

Temp.Cool

Temp. TimeHeat

Temp.Cool

Temp. TimeHeat

Temp.Cool

Temp. TimeHeat

Temp.Cool

Temp.

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

SAMPLEHeating/Cooling Schedule Plan

THIS THERMOSTAT ALLOWS ONE SET OF TIMES FOR BOTH HEATING AND COOLING

Joe's RestaurantClosed MondaysOpen Tues. – Sat. 10:30 AM to 10:00 PMOpen Sunday 6:30 AM to 2:00 PM

HEAT A = 65° COOL A = 80°HEAT B = 68° COOL B = 78°HEAT C = 70° COOL C = 76°HEAT D = 72° COOL D = 74°

5:00 AM

5:00 AM

5:00 AM

5:00 AM

5:00 AM

5:00 AM

5:00 AM

9:00 AM

9:00 AM

9:00 AM

9:00 AM

9:00 AM

9:00 AM

9:00 AM

3:30 PM

3:30 PM

3:30 PM

3:30 PM

3:30 PM

3:30 PM

3:30 PM

11:30 PM

11:30 PM

11:30 PM

11:30 PM

11:30 PM

11:30 PM

11:30 PM

65° (A)

65° (A)

65° (A)

65° (A)

65° (A)

65° (A)

70° (C)

80° (A)

80° (A)

80° (A)

80° (A)

80° (A)

80° (A)

78° (B)

65° (A)

70° (C)

70° (C)

70° (C)

70° (C)

70° (C)

70° (C)

80° (A)

76° (C)

76° (C)

76° (C)

76° (C)

76° (C)

76° (C)

65° (A)

72° (D)

72° (D)

72° (D)

72° (D)

72° (D)

68° (B)

80° (A)

74° (D)

74° (D)

74° (D)

74° (D)

74° (D)

76° (C)

65° (A)

65° (A)

65° (A)

65° (A)

65° (A)

65° (A)

65° (A)

80° (A)

80° (A)

80° (A)

80° (A)

80° (A)

80° (A)

80° (A)

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ENTERING YOUR PROGRAMFollow these steps to enter the heating/coolingprogram you have selected.We recommend that you remove the thermostatfrom the wall for programming (especially forentering cooling programming). Fresh “AA” Ener-gizer® alkaline batteries must be installed to per-form off-wall programming. BE SURE SYSTEMSWITCH IS SET TO OFF POSITION BEFOREREATTACHING THERMOSTAT TO SUBBASE!

Set Current Time and Day

1. Press SETCLOCK once. The display will show min-

utes only.

EXAMPLE:

2. Press and hold either TIMEFWD or TIME

BACK until you

reach the correct minutes.

3. Press SETCLOCK once. The display window will

show the hour only.

EXAMPLE:

4. Press and hold either TIMEFWD or TIME

BACK until you

reach the correct hour and AM/PM designa-tion (AM begins at midnight; PM begins atnoon).

5. Press SETCLOCK once. The display will show the

day of the week as an abbreviation (MONfor Monday, TUE for Tuesday, etc.).

6. Press and hold either TIMEFWD or TIME

BACK until you

reach the current day of the week.

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7. Press RUNPRGM once. The display will show the

correct time and room temperature alter-nately.

Select Heating and Cooling Temperatures

During programming, if you don’t press anybuttons for 5 minutes, the thermostat will enterthe HOLD mode and will maintain a constanttemperature. The display will revert to the alter-nating time/temperature display. To resume pro-

gramming after this happens, press VIEWPRGM until

you are at the point where you stopped program-ming. Then you may continue to enter yourprograms normally. If you want to stop program-

ming at any time, simply press RUNPRGM to resume

program operation.

1. Press SYSTEMSWITCH until HEAT is displayed.

2. Press VIEWTEMP once. The display will continue to

show HEAT. Below HEAT is the letter A,representing the first programmed heatingtemperature (HEAT A ). At the right of thedisplay is the currently programmed HEATA setting.

3. Press either or to change thetemperature to your selected HEAT A set-ting. (If you only want to program a tempera-ture for HEAT A , skip to step 7.)

4. Press VIEWTEMP once. The letter A will change to

the letter B, representing HEAT B .

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5. Press either or to change thetemperature to your selected HEAT B setting(if you only want to program temperatures forHEAT A and HEAT B , skip to step 7).

6. Repeat steps 4 and 5 to select HEAT C andHEAT D temperature settings, if desired.

7. Press RUNPRGM .

8. Press SYSTEMSWITCH until COOL is displayed.

9. Press VIEWTEMP once. The display will show COOL

and A, representing the first programmedcooling temperature (COOL A ).

10. Press either or to change thetemperature to your selected COOL A set-ting (if you only want to program a tempera-ture for COOL A , skip to step 13).

11. Press VIEWTEMP once. Press or to set

your selected COOL B setting (if you onlywant to program temperatures for COOL Aand COOL B , skip to step 13).

12. Repeat step 11 to select COOL C andCOOL D temperature settings, if desired.

13. Press RUNPRGM .

Program Heating/Cooling Times andHeating Temperatures

1. Press SYSTEMSWITCH until HEAT is displayed.

2. Press VIEWPRGM once. MON, the abbreviation for

Monday, and the number 1, representingthe first heating/cooling period, will be dis-played. Also displayed are the currently

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programmed start time for heating/coolingperiod 1 and the currently programmedHEAT A , B, C, or D temperature for heating/cooling period 1.

EXAMPLE:

3. To change the displayed start time to yourselected start time for Monday’s period 1,

press TIMEFWD or TIME

BACK until your selected time

appears. The time will change in 15-minuteincrements. The time that you programwill be the start time of Monday’s period1 for both heating and cooling programs.

4. If the temperature displayed is not the HEATA, B, C, or D temperature you want forMonday’s period 1, press or (ifyou continue to press or , thedisplay will alternately display the HEAT A ,

B, C, or D temperatures you have alreadyprogrammed).

5. If you want the fan to run continuously

during this time period, press FANSWITCH until

PRG FAN appears in the display (if you skipthis step, the fan will cycle automaticallywith the heating/cooling system).

6. After selecting the desired heating tempera-ture for Monday’s heating/cooling period 1,

press VIEWPRGM . The currently programmed start

time and heating temperature for Monday’speriod 2 will be displayed.

7. Repeat steps 3 through 5 to select the starttime, heating temperature, and fan opera-tion for Monday’s heating/cooling period 2.

8. Repeat steps 3 through 7 for Monday’sheating/cooling periods 3 and 4.

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The thermostat has a built-in COPY feature.This feature automatically copies the heatingand cooling programs you select for Mondayinto Tuesday’s through Sunday’s programs.If you want to have the same programmingevery day, after you program Monday’s

schedule, you simply press RUNPRGM to start the

thermostat’s programmed operation. Every daywill then use the same program you set for

Monday. You may also use the HOLDCOPY button to

copy any day’s program into any other day (seeUSING THE HOLD/COPY BUTTON ).

9. To enter Tuesday’s through Sunday’s heat-

ing programs, use the HOLDCOPY button as de-

scribed below, or press ADVDAY until the correct

day’s abbreviation appears in the displayand repeat the above steps to program eachday’s heating/cooling periods and heatingtemperatures.

10. When you have completed programmingyour heating/cooling periods and heating

temperatures, press RUNPRGM .

NOTE

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Program Cooling Temperatures

If outside temperature is below 50 °F, werecommend that you remove the ther-mostat from the wall before proceedingwith the following steps to program cool-ing temperatures. Personal injury and/orproperty damage could result from airconditioner compressor slugging. Fresh“AA” alkaline batteries (such as Ener-gizer ® brand) must be installed to per-form off-wall programming. Program-ming away from the wall should preventaccidental compressor operation. BE

SURE TO PRESS SYSTEMSWITCH UNTIL OFF IS

DISPLAYED BEFORE REATTACHINGTHE THERMOSTAT TO THE SUBBASE!

1. To program cooling temperatures for theheating/cooling periods you have already

set, press SYSTEMSWITCH until COOL is displayed.

2. Press VIEWPRGM once. The Monday heating/cool-

ing period 1 start time you programmedearlier will be displayed, along with thecurrently programmed COOL A , B, C, or Dtemperature.

3. Press or to display the COOL A ,B, C, or D temperature you want for Monday’sheating/cooling period 1. If you want the fanto run continuously during this period, press

FANSWITCH until PRG FAN is displayed.

4. Press VIEWPRGM , then press or to

select Monday’s COOL A , B, C, or D tem-

CAUTION!

28

perature for period 2. If you want the fan torun continuously during this period, press

FANSWITCH until PRG FAN is displayed.

5. Repeat step 4 for Monday’s heating coolingperiods 3 and 4.

6. Use the HOLDCOPY button, or press ADV

DAY to choose

other days to program. Remember, onceyou enter Monday’s program, Monday’s pro-gram is automatically copied into Tuesday’sthrough Sunday’s programs.

7. After you enter or copy heating and cooling

programs for all seven days, press RUNPRGM to

begin program operation.

Using the HOLD/COPY Button

You can use the button to copy any day’s entireheating/cooling program into any other day’sprogram. However, you must perform eachcopy function separately. Each time you begina COPY operation, you must start with the day’sprogram you wish to copy FROM. A COPY

operation is not complete until HOLDCOPY has been

pressed twice .

For most efficient programming, you shouldenter both the heating and cooling programs forthe day you wish to copy FROM before using theCOPY function, since the COPY function copiesthe entire day’s programming to other days.

1. Press VIEWPRGM once.

NOTE

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2. Press ADVDAY until the day you want to copy

from is displayed. If you have not com-pleted programming for this day, do sobefore proceeding.

3. Press HOLDCOPY once. COPY will appear on the

display. A number from 1 to 7 will also bedisplayed, representing the day you haveselected to copy from (Monday is 1, Tues-day is 2, etc.). For example, if in step 2 youselected to copy Wednesday’s program,

when you press HOLDCOPY , COPY 3 will be dis-

played.

4. Press ADVDAY to select the day you want to copy

the program TO.

5. Press HOLDCOPY . COPY will disappear from the

display, and the display will show the copiedheating/cooling time and temperature forthe day you copied to .

6. Repeat the above steps to copy any day’sprogramming into any other day’s program.

7. Press RUNPRGM to begin program operation.

CHECK YOUR PROGRAMMINGFollow these steps to check your thermostatprogramming one final time before beginningthermostat operation.

1. Press SYSTEMSWITCH until HEAT is displayed.

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2. Press and hold VIEWPRGM to view the heating/

cooling period times and heating tempera-tures for Monday.

3. Press ADVDAY once to advance to Tuesday.

4. Press and hold VIEWPRGM to view heating/cooling

periods and heating temperatures for Tues-day.

5. Repeat steps 3 and 4 to review all remainingdays’ programming. If you find an error in anyday’s programming, go back to the program-ming instructions to correct the error.

6. Press RUNPRGM .

7. Press SYSTEMSWITCH until COOL is displayed.

8. Repeat steps 2 through 5 to check coolingtemperatures.

9. Press RUNPRGM to begin program operation.

YOUR THERMOSTAT IS NOW COMPLETELYPROGRAMMED AND READY TO AUTOMATI-CALLY PROVIDE MAXIMUM COMFORT ANDEFFICIENCY!

Press SYSTEMSWITCH until OFF is displayed. Reattach

thermostat to subbase. Then press SYSTEMSWITCH to

select the operation mode you want (HEAT or

COOL). Press FANSWITCH until FAN AUTO is dis-

played (automatic cycling).

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1. How can I permanently change a part ofmy program?

Press VIEWPRGM and ADV

DAY until you reach the time/

temperature schedule you want. Then pressTIMEFWD or TIME

BACK and or to change the

program. See PROGRAMMING YOURTHERMOSTAT.

2. How can I have no change in tempera-ture from one time period to another?

Simply select the same temperature foreach consecutive time period. For example,you may select the same COOL A tempera-ture for period 2 as you did for period 1,which means the temperature will not change

from COOL A when period 2 begins. SeePROGRAMMING YOUR THERMOSTAT .

3. How can I finish my programming if thedisplay has already changed to time/temperature?

During programming, if no buttons arepressed for five minutes, the thermostat willenter the HOLD mode and maintain a con-stant temperature. The display will changeto the time/temperature mode. To resume

programming, press VIEWPRGM and ADV

DAY until you

return to the point where you stopped pro-gramming. Then you may continue to pro-gram the thermostat normally. If you want to

QUESTIONS AND ANSWERS

32

stop programming at this point, press RUNPRGM to

start the normal program function. See PRO-GRAMMING YOUR THERMOSTAT .

4. What happens if the electricity goes offor is manually shut off?

If you have not installed 3 “AA” alkalinebatteries, the display will go blank and theprogram will be lost in approximately oneminute. When electricity is restored, theclock will reset itself to 12:00 PM (noon) andthe thermostat will maintain a heating tem-perature of 64°F and a cooling temperatureof 82°F until you reenter your program.Setpoint temperature will not be displayed.

If fresh “AA” Energizer® alkaline batteriesare installed, the program will be main-

tained for about one year with no 24 VACpower present to the thermostat. See OP-ERATING YOUR THERMOSTAT .

5. Why is the fan running constantly, re-gardless of system operation?

You have programmed the fan to run con-tinuously during this program period. To

override the programmed fan, press FANSWITCH

until FAN AUTO is displayed. To changethe programming, see PROGRAMMINGYOUR THERMOSTAT.

6. What can cause the thermostat displayto freeze or go blank?

A completely blank display may indicatethat power has been lost to the thermostatand the backup batteries are also dead.However, if there is power to the thermostat

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and the display is blank or frozen, staticdischarge is probably the cause.

During periods of low humidity (especiallyduring cold weather), you may feel or see aspark discharge when you touch the ther-mostat. This may cause the program to belost or the thermostat to display incorrectly.To correct this, remove the thermostat fromthe wall and disconnect the batteries. Waitabout two minutes, then reconnect the bat-teries. The thermostat will revert to the fac-tory preset program until you reprogram thethermostat. If you don’t want to reprogram

the thermostat immediately, press SYSTEMSWITCH

until OFF is displayed and replace the ther-

mostat on the wall. Press SYSTEMSWITCH until

HEAT or COOL is displayed, then press

RUNPRGM to begin the factory preset program. Or

you may reprogram the thermostat, thenreplace it on the wall.

To prevent further static discharge prob-lems, touch another object to release staticbuild-up before touching the thermostat.See OPERATING YOUR THERMOSTAT .

7. The display is flashing BATTERY. Whatdoes this mean?

The “AA” batteries installed in the thermo-stat are low and should be replaced withfresh “AA” Energizer® alkaline batteries. SeeOPERATING YOUR THERMOSTAT .

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8. The thermostat beeps every few min-utes. What does this mean?

The thermostat will beep every five minuteswhen the batteries are low and need replac-ing. To override the beeping, press anybutton on the keypad. The beeping will stopfor 15 hours, then start again. You mayagain stop the beeping by pressing anybutton on the keypad. After turning the beepoff three times, the thermostat will quit beep-ing. However, you risk losing your thermo-stat programming if you continue to turn offthe beep and do not change the batteries.See OPERATING YOUR THERMOSTAT .

9. The display shows a continuous (non-flashing) BATTERY. What does thismean?

The thermostat is not being supplied with 24VAC power. The thermostat is operating onbattery power alone. See OPERATINGYOUR THERMOSTAT.

10. Why won’t the compressor turn on, eventhough the thermostat display is func-tioning normally?

Either the compressor lockout feature is inoperation or the thermostat is not currentlycalling for cool. Wait about 5 minutes for thecompressor lockout to expire. If the systemis still not running, read the cautionary state-ment below. Then, if conditions permit ,use the button to move the tempera-ture below the setpoint temperature. SeeOPERATING YOUR THERMOSTAT .

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If the outside temperature is below 50 °F,DO NOT use the button to move thetemperature below the setpoint tempera-ture. Property damage may result due tocompressor slugging.

11. Why doesn’t the temperature change atthe time I programmed?

There may be a number of causes for thissituation. The following are primary reasons.

• The EMR function is operating. The EMRfunction will automatically bring on thesystem automatically to bring the tem-perature to the selected level by the begin-ning of the next program period. SeeOPERATING YOUR THERMOSTAT .

• You have programmed the incorrect dayor time. Check your programming (besure that the times you programmed arecorrect AM or PM times). See PRO-GRAMMING YOUR THERMOSTAT .

• The thermostat is in the HOLD mode.

Press RUNPRGM to start program operation. See

OPERATING YOUR THERMOSTAT .

• The compressor lockout feature is oper-ating; wait about 5 minutes for system tobegin running. See OPERATING YOURTHERMOSTAT.

CAUTION!

36

12. Why does the blower fan keep runningafter the system has turned off?

• You have programmed the fan to runcontinuously during this period. See PRO-GRAMMING YOUR THERMOSTAT .

• The blower delay feature is operating.This energy saving feature continues toblow conditioned air through the ductsafter the system has turned off, ratherthan letting the air dissipate.

13. Why is the system turning on and off sofrequently (seldom)?

The anticipation setting is too low (high). Tochange anticipation settings, see OPER-ATING YOUR THERMOSTAT .

14. Between heating and cooling seasons, Iwant to turn my system off. Can I do thiswithout affecting my thermostat program-ming?

Any time you wish to turn your system off,

simply press SYSTEMSWITCH until the display shows

OFF. This will not affect your thermostat’sprogramming in any way. To turn the sys-

tem back on, press SYSTEMSWITCH until HEAT,

COOL, etc. is displayed. The system willautomatically begin operating according tothe current thermostat program, unless thethermostat is in the HOLD mode. See OP-ERATING YOUR THERMOSTAT .

37

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

To change your clock, follow the instruc-tions for setting current time and day. SeeENTERING YOUR PROGRAM. Thermo-stat programming is not affected when youchange the clock.

16. Do I have to reprogram my thermostatafter I change the batteries?

When the thermostat is on the wall and thesystem has power, the thermostat is beingpowered by a 24 VAC source. If power islost, or if the thermostat is removed from thewall, the program will be retained for ap-proximately one minute if there are nobatteries installed or if the installed batteriesare dead. If you are changing the batteries

after seeing a flashing BATTERY on thedisplay, the installed batteries may be dead.

If you remove the old batteries and installfresh ones within one minute, you shouldnot lose your thermostat programming. Af-ter installing new batteries, follow the proce-dures in CHECK YOUR PROGRAMMINGto determine whether your programmingwas maintained. If the thermostat maintains

programming, press SYSTEMSWITCH until OFF is

displayed, put the thermostat back on the

wall, press SYSTEMSWITCH to select the operating

mode you want, then press RUNPRGM to start

program operation. If the program is lost,reprogram the thermostat. See PROGRAM-MING YOUR THERMOSTAT.

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NOTES

39

NOTES

Part No. 37-5101BReplaces 37-5101A

9522

If you need further information on programming or operation, write to:

White-Rodgers Division, Emerson Electric Co.9797 Reavis RoadSt. Louis, MO 63123-5398Attn: Technical Service Department

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