OPERATION GUIDE

7-Day Programmable ElectronicDigital Thermostat

1F97-71

Operator: Save this booklet for future use!

WHITE-RODGERS

2

About Your New Thermostat . . .

Your new White-Rodgers Digital Thermostat uses the technology of a solid-state microcomputer toprovide precise time/temperature control. This thermostat offers you the flexibility to design heating andcooling 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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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 ..................... 33

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 ........................................ 18PLANNING FOR YOUR NEEDS

In This Guide . . .

Operator: Save thisbooklet for future use!

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• Seven independent day programming• Simultaneous heat and cool program storage• Four separate time/temperature settings per

24-hour period• Computed Energy Management Recovery

(EMR)• Automatic changeover (operator-selectable)• Armchair programming capability• Backlit LCD displays continuous set point,

time, and room temperature• 1.5 volt "AA" Energizer® alkaline battery backup• 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 tempera-

ture)• °F/°C convertibility• Keypad lockout (operator-selectable)• Temperature range 40° to 99°F• Compatible with Remote Sensor (installer-

selectable)

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OPERATING YOUR THERMOSTAT

Before you begin programming your thermostat,you should be familiar with its features and with thedisplay and the location and operation of the ther-mostat buttons. The information in this section willhelp you become familiar with your new thermostatso that you can easily program it.

Your thermostat consists of two parts: the thermo-stat body and the subbase .

Remove power from the system at thecircuit breaker/fuse box before removingor attaching the thermostat body. Equip-ment damage and/or personal injury couldoccur.

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 attach thethermostat body, line up the three terminal pins onthe lower section of the thermostat back with thematching connector on the subbase. Insert these,then gently pivot the thermostat body up to connectthe six pin connectors on the upper portion of thethermostat back. Gently push until the snap con-nectors engage. DO NOT FORCE OR PRY THETHERMOSTAT, as this 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 and thetwo option switch groups (A and B).

1. The "AA" Energizer® alkaline batteries providepower to the thermostat when the 24vACpower is interrupted (for example, when youremove the thermostat from the wall for pro-gramming). Fresh batteries will maintain thestored program for approximately a year. Ifpower loss is long enough for the program tobe lost, the thermostat will automatically re-turn to the factory programmed temperatures(64°F heating and 82°F cooling) when poweris restored. You must reprogram the thermo-stat if this happens.

If the word BATTERY is flashing in the displaywindow, the batteries are low and should bereplaced with fresh "AA" Energizer® alkalinebatteries.

Before removing thermostat from the wallto replace the batteries, remove 24vACpower from the thermostat at the breaker/fuse box.

2. You may adjust the option switches for EMR,keypad lockout, and automatic changeover fromheat to cool (see OPERATING FEATURES ).

CAUTION!

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Other than and , the buttons are lo-cated 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, then swingit down on its hinges.

On the following pages there are brief descriptionsof the display and the thermostat buttons.

BACK OF THERMOSTAT BODY

Option Switches 3-pin Connector

6-pin Connector Batteries

W14

W22

(Group A)

(Group B)

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The word BATTERY flashes on the displaywhen the "AA" alkaline batteries are weak andshould be replaced. The word BATTERY isdisplayed continuously (non-flashing) whenthermostat is running on battery power only.

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

The Display

Continuously displays system mode (HEAT,OFF, COOL, AUTO, HOLD). During pro-gramming, the day of the week is displayed(MON, TUE, WED, etc.).

Alternately displays room temperature (F de-notes degrees Fahrenheit and C denotes de-grees Celsius) and time of day (A denotes AMtime and P denotes PM time).

Displays the setpoint temperature.

In VIEW TEMP mode, A, B, C, and D are the1st, 2nd, 3rd, and 4th heating or cooling tem-peratures available for programming.

1

5

62

3

4

9

1 2 3

4 6 6

A B

2

3

4

FAN AUTO FAN ON

FAN AUTO

5

BATTERY

SYSTEMSWITCH

FANSWITCH

HEAT-OFF-COOL-AUTO

TIMEFWD

TIMEBACK

SETCLOCK

ADVDAY

VIEWPRGM

VIEWTEMP

HOLDCOPY

RUNPRGM

ON-AUTO

WHITE-RODGERS DIGITAL COMFORT SET II

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Used to initiate or review thermostat program-ming.

Used to select heating and cooling tempera-tures to be programmed.

Used to manually override programming tohold at a selected temperature (when HOLD isdisplayed). Also used to copy one day'sprogramming into another (when COPY isdisplayed).

Used to start program operation after pro-gramming. Also used to return thermostat toprogram operation after being in HOLD mode.

(Red arrow) Raises temperature setting (99°For 37°C maximum).

(Blue arrow) Lowers temperature setting (40°For 4°C minimum).

The red indicator light glows whenever heat-ing, cooling, or fan are in operation.

The Thermostat Buttons

Sets the system mode (HEAT ing, OFF,COOLing, or AUTOmatic changeover).

Selects fan operation (see #6, above). Thisbutton is also used to program the fan to runcontinuously during a program period.

Runs display forward or backward throughtime, day, or anticipation settings during pro-gramming.

Used with TIMEFWD and TIME

BACK to set current time

and day of the week.

Used during programming to set the day of theweek to be programmed. Also used in con-

junction with the SETCLOCK button to enter antici-

pation setting mode.

7

12

13

8

9

10

11

14

15

16

17

18

11

10 11 12 13 14 15

1617 18

9

7

8

FAN AUTO

SYSTEMSWITCH

FANSWITCH

HEAT-OFF-COOL-AUTO

TIMEFWD

TIMEBACK

SETCLOCK

ADVDAY

VIEWPRGM

VIEWTEMP

HOLDCOPY

RUNPRGM

ON-AUTO

WHITE-RODGERS DIGITAL COMFORT SET II

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OPERATING FEATURES

Now that you are familiar with the thermostatdisplay and buttons, read the following informationto learn about the many features of the thermostat.

• COMPUTED ENERGY MANAGEMENT RE-COVERY (EMR) — The thermostat’s micro-computer can be set to automatically calculatethe time it will take to change the temperatureto the next program setting. Then the thermo-stat will activate the heating or cooling systemto change the temperature so that the desiredtemperature is reached at the beginning of thenext program period. As an example of thisfeature, assume that you have programmedyour thermostat to provide an overnight heat-ing temperature of 62°F, and that during thenext program period, beginning at 6:00 AM,you have programmed a temperature of 70°F.

The thermostat will automatically activate theheating system at 5:00 AM, so that the pro-grammed 70°F temperature is reached byabout 6:00 AM.This feature is controlled by Group B optionswitch #3. To enable the EMR function, firstyou must move option switch #3 (located onthe back of the thermostat body) to the OFFposition, if it has not already been done. To dothis, turn off 24v AC power to the thermostat.Then remove the thermostat body from thewall. Check the position of switch #3 (the lastswitch on the right). If it is OFF (down), simplyput the thermostat back on the wall and re-store 24v AC power. If the switch is ON (up),remove the battery, then use a pencil or smallscrewdriver to move the switch to the OFFposition (see figure below). Leave the batteryout of the thermostat for at least two minutes ,to allow the thermostat to reset itself. See

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AUTOMATIC CHANGEOVER to determineproper positions of Group B option switches#1 and #2.

EMR Switch Positions

Switch #1 (see AUTOMATIC CHANGEOVER )Switch #2 (see AUTOMATIC CHANGEOVER )Switch #3 OFF

• AUTOMATIC CHANGEOVER — If you havea heating/cooling system, you can set thethermostat to automatically switch the systemfrom heating to cooling as needed. (If youhave a heating only system, Group B optionswitch #1 should be OFF and option switch #2should be ON.) To enable automaticchangeover, you must move Group B option

switch #1 to the ON position and switch #2 tothe OFF position. Turn off 24v AC power to thethermostat. Then remove the thermostat bodyfrom the wall. Check the position of Group Boption switches #1 and #2 (the first two switcheson the left). If they are in the correct positions,simply put the thermostat back on the wall andrestore 24v AC power. If the switches are notcorrectly positioned, remove the battery, thenuse a pencil or small screwdriver to move theswitches to the correct positions (see figure onnext page). Leave the battery out of thethermostat for at least two minutes , to allowthe thermostat to reset itself. Replace thebattery, reprogram the thermostat, if neces-sary, put the thermostat back on the wall, andrestore 24v AC power. To set the thermostatfor automatic changeover after programming,

press SYSTEMSWITCH to set the thermostat to AUTO

ON

1 2 3

Group BOption

Switches

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(the setpoint temperature display is blank inthe AUTO mode). The system will now auto-matically switch between heating and cooling,depending on the actual room temperature.

Auto Changeover Switch Positions

Switch #1 ONSwitch #2 OFFSwitch #3 (see Energy Management Recovery )

In the AUTO mode, the thermostat will not allowthe temperature separation between the highestheat setting and the lowest cool setting to be lessthan 1°F. For example, if the highest heat settingis 75°F, the lowest cool setting cannot be below77°F (see diagram at right).

• TWO HOUR TEMPERATURE OVERRIDE —Press or until the display showsthe temperature you want. The thermostat willoverride current programming and keep theroom temperature at the selected temperaturefor two hours. After two hours, the thermostatwill automatically revert to the program.

• HOLD TEMPERATURE — The thermostatcan hold any temperature within its range foran 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

ON

1 2 3

Group BOption

Switches

79787776757473

COOLING TEMPERATURES

HEATING TEMPERATURES

DEAD BAND 1°F

NOTE

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the selected setting until you press RUNPRGM to

start program operation again. This feature isideal for energy conservation when the build-ing is unoccupied for an extended period oftime.

• °F/°C CONVERTIBILITY — Press TIMEFWD and

TIMEBACK at the same time until the temperature

display is in °C (Celsius). To display °F, repeatthe 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 selectany anticipation setting from 4 to 40 (notethat for hydronic systems, a minimum an-ticipation setting of 15 is recommended ).Whenever adjusting anticipation, increase ordecrease the displayed number by only oneor two digits, then let the system run for awhile 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

CAUTION!

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too long, press TIMEBACK to decrease the cycle

time. To set cooling anticipation, press SETCLOCK

and ADVDAY at the same time again. The display

will show COOL 14 (factory preprogrammed

cooling anticipation). Use the TIMEFWD and TIME

BACK

buttons to adjust anticipation. Press RUNPRGM to

return to your program.• LOW BATTERY INDICATOR — The three

"AA" alkaline batteries will maintain thermo-stat programming for approximately one yearif power to the thermostat fails. The wordBATTERY will flash on the display if the "AA"alkaline batteries are low and should be re-placed. The thermostat will also make abeeping sound every five minutes when bat-teries need replacing. To override the beep-ing, press any button on the keypad. The

beeping will stop for 15 hours, then start again.You may again stop the beeping by pressingany button on the keypad. After turning thebeep off three times, the thermostat will quitbeeping. However, you should always changethe batteries as soon as possible to ensurethat programming will not be lost in the eventof a power outage. You should also changethe batteries at least once a year.

Fresh batteries must always be installedfor millivolt systems. The heating systemwill not operate if batteries are not installedor if battery power is low.

The word BATTERY will be displayed continu-ously (non-flashing) when 24v AC power is notbeing supplied to the thermostat and the ther-mostat is operating on battery power only.

CAUTION!

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• AUDIO PROMPTING — Each time you pressa button, the thermostat will beep.

• BACKLIT DISPLAY — When you press anybutton on the thermostat, the display is lit forapproximately eight seconds.

• SYSTEM INDICATOR LIGHT — The red lighton the upper right part of the thermostat indi-cates system operation (see PARTS OF THETHERMOSTAT).

On systems with Taco zone valves, the indicatorlight will flash during the heating cycle.

• 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 COOL

too soon after a previous call.

• TOTAL KEYPAD LOCKOUT — When GroupA option switch #1 is in the total keypadlockout position (ON), programs cannot bealtered and all buttons are disabled.

Programming should be completed and batteriesshould be installed before changing Group Aoption switches #1 or #2.

NOTE

NOTE PR

OG

RA

MM

ING

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Total Keypad Lockout Switch Positions

Switch #1 ONSwitch #2 OFF

To enable total keypad lockout, move GroupA option switch #1 to ON (see figure above).To disable total keypad lockout, move optionswitch #1 to OFF.

ON

1 2

Group AOption

Switches

PROGRAMMING YOUR THERMOSTAT

PR

OG

RA

MM

ING 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 periodsof low activity.

• During early morning hours, the need for cool-ing is usually minimal.

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PLANNING FOR YOUR NEEDS

First, answer the following questions to help youdecide what your needs are. If you are using thethermostat for a commercial application (a store,office building, etc.), answer questions 1 through 4.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 at

this time? (heating? cooling?) These will beyour MOR (morning) temperature settings.

2a. What time do the building occupants reach amaximum 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.

3a. What time do the building occupants reach aminimum activity level (limited personnel inbuilding)?

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 at

this 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 at this

time? These will be your MOR (morning)temperature settings.

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

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b. What temperature should the house be at thistime? These will be your DAY temperaturesettings.

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

b. What temperature should the house be at thistime? 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 at thistime? These will be your NHT (night) tempera-ture settings.

Now look at the factory preprogrammed times andtemperatures shown at right. If this program will

suit your needs, simply press RUNPRGM to begin run-

ning the factory preset program.If you want to change the preprogrammed times

and temperatures, follow these steps.

1. Determine the heating and cooling tempera-tures you want to use. You may select up to fourheating temperatures (HEAT A , HEAT B , HEATC, and HEAT D), and up to four cooling tem-peratures (COOL A , COOL B , COOL C, andCOOL D). Use the table on the following pageto write down the temperatures you have se-lected.

To operate properly in the AUTO mode, there mustbe a minimum 1 °F separation between the high-

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 PM10:00 PM

78827878

NOTE

21

est heat temperature and the lowest cool tempera-ture (see diagram below).

2. Determine the time periods during which youwill program the temperatures you have justselected. You must program four periods foreach day (periods 1, 2, 3, and 4). However,you may use the same heating and coolingtemperatures for consecutive time periods.Also keep in mind that, for any given day, youcan only program one set of times for bothheating and cooling (for example, if you select5:00 AM to begin heating period 1 on Monday,then your cooling period 1 for Monday will alsobegin at 5:00 AM). However, you may choose

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).

79787776757473

COOLING TEMPERATURES

HEATING TEMPERATURES

DEAD BAND 1°F

22

different time periods for each day separately(for example, heating/cooling period 1 on Mon-day may begin at 5:00 AM, but heating/coolingperiod 1 on Saturday may begin at 9:00 AM).Use the following table to plan your programtime periods, and the temperatures you wantduring each period. You may also want to lookat the sample program table to get an idea ofhow the thermostat can be programmed.

ENTERING YOUR PROGRAM

Follow these steps to enter the heating/coolingprogram you have selected.

We recommend that you remove the thermostatfrom the wall for programming (especially for enter-ing cooling programming). Fresh "AA" Energizer®

alkaline batteries must be installed to perform off-wall programming. BE SURE SYSTEM SWITCH ISSET TO OFF POSITION BEFORE REATTACH-ING THERMOSTAT TO SUBBASE!

You cannot program the thermostat with the SYS-TEM SWITCH in the AUTO position.

Set Current Time and Day

1. Press SETCLOCK once. The display will show

minutes only.

EXAMPLE:

2. Press and hold either TIMEFWD or TIME

BACK until you

reach the correct minutes.

NOTE

NOTE

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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)

25

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 (MON forMonday, TUE for Tuesday, etc.).

6. Press and hold either TIMEFWD or TIME

BACK until you

reach the current day of the week.

7. Press RUNPRGM once. The display will show the

correct time and room temperature alternately.

Select Heating and Cooling Temperatures

During programming, if you don’t press any but-tons for 5 minutes, the thermostat will enter theHOLD mode and will maintain a constant tempera-ture. The display will revert to the alternating time/temperature display. To resume programming

after this happens, press VIEWPRGM until you are at the

point where you stopped programming. Then youmay continue to enter your programs normally. Ifyou want to stop programming 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 heating

26

temperature (HEAT A ). At the right of thedisplay is the currently programmed HEAT Asetting.

3. Press either or to change thetemperature to your selected HEAT A setting(if you only want to program a temperature forHEAT A , skip to step 7.)

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

the letter B, representing HEAT B .5. Press either or to change the

temperature to your selected HEAT B setting (ifyou 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 pro-grammed cooling temperature (COOL A ).

10. Press either or to change thetemperature to your selected COOL A setting(if you only want to program a temperature forCOOL 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 and COOLD temperature settings, if desired.

13. Press RUNPRGM .

27

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, representing thefirst heating/cooling period, will be displayed.Also displayed are the currently programmedstart time for heating/cooling period 1 and thecurrently programmed HEAT A , B, C, or Dtemperature 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-minute

increments. The time that you program willbe the start time of Monday's period 1 forboth 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 already pro-grammed).

5. If you want the fan to run continuously during

this time period, press FANSWITCH until PRG

FAN appears in the display (if you skip thisstep, the fan will cycle automatically with theheating/cooling system).

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

press VIEWPRGM . The currently programmed start

28

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 operationfor Monday's heating/cooling period 2.

8. Repeat steps 3 through 7 for Monday's heat-ing/cooling periods 3 and 4.

The thermostat has a built-in COPY feature. Thisfeature automatically copies the heating andcooling programs you select for Monday intoTuesday's through Sunday's programs. If youwant to have the same programming every day,after you program Monday's schedule, you simply

press RUNPRGM to start the thermostat's programmed

operation. Every day will then use the sameprogram you set for Monday. You may also use

the HOLDCOPY button to copy any day's program into

any other day (see USING THE HOLD/COPYBUTTON).

9. To enter Tuesday's through Sunday's heating

programs, use the HOLDCOPY button as described

below, or press ADVDAY until the correct day's

abbreviation appears in the display and repeatthe above steps to program each day's heat-ing/cooling periods and heating temperatures.

10. When you have completed programming yourheating/cooling periods and heating tempera-

tures, press RUNPRGM .

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Program Cooling Temperatures

If outside temperature is below 50 °F, werecommend that you remove the thermo-stat from the wall before proceeding withthe following steps to program coolingtemperatures. Personal injury and/or prop-erty damage could result from air condi-tioner compressor slugging. Fresh "AA"alkaline batteries (such as Energizer ®

brand) must be installed to perform off-wall programming. Programming awayfrom the wall should prevent accidentalcompressor operation. BE SURE TO

PRESS SYSTEMSWITCH UNTIL OFF IS DISPLAYED

BEFORE REATTACHING THE THERMO-STAT TO THE SUBBASE!

1. To program cooling temperatures for the heat-ing/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 programmed earlierwill be displayed, along with the currentlyprogrammed COOL A , B, C, or D tempera-ture.

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 fan torun 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 tempera-ture for period 2. If you want the fan to run

CAUTION!

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continuously during this period, press FANSWITCH

until PRG FAN is displayed.5. Repeat step 4 for Monday's heating cooling

periods 3 and 4.

6. Use the HOLDCOPY button, or press ADV

DAY to choose

other days to program. Remember, once youenter Monday's program, Monday's programis automatically copied into Tuesday's throughSunday'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's pro-

gram. However, you must perform each copyfunction separately. Each time you begin a COPYoperation, you must start with the day's programyou wish to copy FROM. A COPY operation is not

complete until HOLDCOPY has been pressed twice .

For most efficient programming, you should enterboth the heating and cooling programs for the dayyou wish to copy FROM before using the COPYfunction, since the COPY function copies the entireday's programming to other days.

1. Press VIEWPRGM once.

2. Press ADVDAY until the day you want to copy from

is displayed. If you have not completed pro-gramming for this day, do so before proceeding.

NOTE

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3. Press HOLDCOPY once. COPY will appear on the

display. A number from 1 to 7 will also bedisplayed, representing the day you have se-lected to copy from (Monday is 1, Tuesday is2, etc.). For example, if in step 2 you selectedto copy Wednesday's program, when you press

HOLDCOPY , COPY 3 will be displayed.

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 for theday 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 PROGRAMMING

Follow these steps to check your thermostat pro-gramming one final time before beginning thermo-stat operation.

1. Press SYSTEMSWITCH until HEAT is displayed.

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 Tuesday.5. Repeat steps 3 and 4 to review all remaining

days'programming. If you find an error in any

32

day'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!

When you have completed programming, you mayset option switch group A (see TOTAL KEYPADLOCKOUT in the OPERATING FEATURES sec-tion).

Press SYSTEMSWITCH until OFF is displayed. Reattach

thermostat to subbase. Turn on power to the

system. Then press SYSTEMSWITCH to select the opera-

tion mode you want (HEAT, COOL, AUTO). PressFAN

SWITCH until FAN AUTO is displayed (automatic

cycling).

NOTE

33

1. How can I permanently change a part of myprogram?

Press VIEWPRGM and ADV

DAY until you reach the time/

temperature schedule you want. Then pressTIMEFWD or TIME

BACK and and to change

the program. See PROGRAMMING YOURTHERMOSTAT.

2. How can I have no change in temperaturefrom one time period to another?Simply select the same temperature for eachconsecutive time period. For example, youmay select the same COOL A temperature forperiod 2 as you did for period 1, which meansthe temperature will not change from COOL Awhen period 2 begins. See PROGRAMMINGYOUR THERMOSTAT.

3. How can I finish my programming if thedisplay has already changed to time/tem-perature?During programming, if no buttons are pressedfor five minutes, the thermostat will enter theHOLD mode and maintain a constant tem-perature. The display will change to the time/temperature mode. To resume programming,

press VIEWPRGM and ADV

DAY until you return to the

point where you stopped programming. Thenyou may continue to program the thermostatnormally. If you want to stop programming at

this point, press RUNPRGM to start the normal

program function. See PROGRAMMINGYOUR THERMOSTAT.

QUESTIONS AND ANSWERS

34

4. What happens if the electricity goes off oris manually shut off?If you have not installed 3 "AA" alkaline batter-ies, the display will go blank and the programwill be lost in approximately one minute. Whenelectricity is restored, the clock will reset itselfto 12:00 PM (noon) and the thermostat willmaintain a heating temperature of 64°F and acooling temperature of 82°F until you reenteryour program. Setpoint temperature will notbe displayed.

If fresh "AA" Energizer® alkaline batteries areinstalled, the program will be maintained forabout one year with no 24vAC power presentto the thermostat. See OPERATING YOURTHERMOSTAT.

5. Why can’t I program the thermostat in theAUTO mode?

The thermostat can only be programmed inthe HEAT and COOL modes. See PRO-GRAMMING YOUR THERMOSTAT .

6. Why is the fan running constantly, regard-less of system operation?You have programmed the fan to run continu-ously during this program period. To override

the programmed fan, press FANSWITCH until FAN

AUTO is displayed. To change the program-ming, see PROGRAMMING YOUR THER-MOSTAT.

7. What can cause the thermostat display tofreeze or go blank?A completely blank display may indicate thatpower has been lost to the thermostat and thebackup battery is also dead. However, if thereis power to the thermostat and the display isblank or frozen, static discharge is probablythe cause.

35

During periods of low humidity (especiallyduring cold weather), you may feel or see aspark discharge when you touch the thermo-stat. This may cause the program to be lost orthe thermostat to display incorrectly. To cor-rect this, remove the thermostat from the walland disconnect the battery. Wait about twominutes, then reconnect the battery. Thethermostat will revert to the factory presetprogram until you reprogram the thermostat. Ifyou don’t want to reprogram the thermostat

immediately, press SYSTEMSWITCH until OFF is dis-

played and replace the thermostat on the wall.

Then press RUNPRGM to begin the factory preset

program. Or you may reprogram the thermo-stat, then replace it on the wall.

To prevent further static discharge problems,touch another object to release static build-upbefore touching the thermostat. See OPER-ATING YOUR THERMOSTAT .

8. Why won’t the setpoint temperature go tothe temperature I want?In the AUTO mode, the highest heating setpointtemperature you select must be at least 1°Flower than the lowest cooling setpoint tem-perature you select (for example, if 70°F isyour lowest selected cooling temperature, youcannot select a heating temperature any higherthan 68°F). If such a conflict exists, you mustset the lowest cooling temperature higher inorder to set the heating temperature higher.To set a lower cooling temperature, you mustselect a lower heating temperature. See PRO-GRAMMING YOUR THERMOSTAT .

36

9. The display is flashing BATTERY. Whatdoes this mean?The "AA" batteries installed in the thermostatare low and should be replaced with fresh "AA"Energizer® alkaline batteries. See OPERAT-ING YOUR THERMOSTAT.

10. The thermostat beeps every few minutes.What does this mean?The thermostat will beep every five minuteswhen the batteries are low and need replac-ing. To override the beeping, press any buttonon the keypad. The beeping will stop for 15hours, then start again. You may again stopthe beeping by pressing any button on thekeypad. After turning the beep off three times,the thermostat will quit beeping. However,you risk losing your thermostat programmingif you continue to turn off the beep and do notchange the batteries. See OPERATING YOURTHERMOSTAT.

11. The display shows a continuous (non-flash-ing) BATTERY. What does this mean?The thermostat is not being supplied with24vAC power. The thermostat is operating onbattery power alone. See OPERATING YOURTHERMOSTAT.

12. Why won’t the compressor turn on, eventhough the thermostat display is function-ing 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 system isstill not running, read the cautionary statementat right. Then, if conditions permit , use the

button to move the temperature belowthe setpoint temperature. See OPERATINGYOUR THERMOSTAT.

37

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.

13. Why doesn’t the temperature change at thetime 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 the sys-tem automatically to bring the temperatureto the selected level by the beginning of thenext program period. See OPERATINGYOUR THERMOSTAT.

• You have programmed the incorrect day ortime. Check your programming (be surethat the times you programmed are correctAM or PM times). See PROGRAMMINGYOUR THERMOSTAT.

• The thermostat is in the HOLD mode.

Press RUNPRGM to start program operation.

See OPERATING YOUR THERMOSTAT .• The compressor lockout feature is operat-

ing; wait about 5 minutes for system tobegin running. See OPERATING YOURTHERMOSTAT.

14. Why does the blower fan keep runningafter the system has turned off?• You have programmed the fan to run con-

tinuously during this period. See PRO-GRAMMING YOUR THERMOSTAT .

CAUTION!

38

• The blower delay feature is operating. Thisenergy saving feature continues to blowconditioned air through the ducts after thesystem has turned off, rather than lettingthe air dissipate.

15. Why is the system turning on and off sofrequently (seldom)?The anticipation setting is too low (high). Tochange anticipation settings, see OPERAT-ING YOUR THERMOSTAT.

16. 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 system

back on, press SYSTEMSWITCH until HEAT, COOL,

etc. is displayed. The system will automati-cally begin operating according to the currentthermostat program, unless the thermostat isin the HOLD mode. See OPERATING YOURTHERMOSTAT.

17. I live in an area where daylight savings timeis observed. How do I change the thermo-stat clock twice a year without affectingthermostat programming?To change your clock, follow the instructionsfor setting current time and day. See ENTER-ING YOUR PROGRAM. Thermostat pro-gramming is not affected when you changethe clock.

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18. Do I have to reprogram my thermostat afterI change the batteries?When the thermostat is on the wall and thesystem has power, the thermostat is beingpowered by a 24v AC source. If power is lost,or if the thermostat is removed from the wall,the program will be retained for approximatelyone minute if there are no batteries installedor if the installed batteries are dead. If you arechanging the batteries after seeing a flashingBATTERY on the display, the installed batter-ies may be dead. If you remove the old

batteries and install fresh ones within oneminute, you should not lose your thermostatprogramming. After installing new batteries,follow the procedures in CHECK YOUR PRO-GRAMMING to determine whether your pro-gramming was maintained. If the thermostat

maintains programming, press SYSTEMSWITCH until

OFF is displayed, put the thermostat back on

the wall, press SYSTEMSWITCH to select the operat-

ing mode you want, then press RUNPRGM to start

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

Part No. 37-5100A

9148

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

White-Rodgers Division, Emerson Electric Co.9797 Reavis RoadSt. Louis, MO 63123-5329Attn: Technical Service Department

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