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1

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY

BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE

PERSONAL INJURY AND/OR PROPERTY DAMAGE.

DESCRIPTION

Your new White-Rodgers 5-Day/1-Day/1-Day 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.

Features:

• Separate5-day(weekday),1-day(Sat)and1-day(Sun)pro-

gramming with four separate time/temperature periods per

day

• Simultaneousheatandcoolprogramstorage

• Preprogrammedtemperaturecontrol

• LCD continuously displays set point, and alternately

displays time and room temperature

• Backlitdisplaywhenanykeyispushed

• Temperatureoverrideuntilnextprogramperiod

• Manualprogramoverride(HOLDtemperature)

• TemporaryHOLD

• °F/°Cconvertibility

• Temperaturerange45°to90°F

• R,C,W,W2,G,YandY2terminals

• OptionalCterminal(DualPoweroption)

• Programstorageincaseofpowerloss.

• 2“AA”Energizer®alkalinebatteriesincluded.

SPECIFICATIONS

ELECTRICAL DATA

Electrical Rating:

 20to30VAC50/60Hz.orD.C.

 0.05to1.5Amps(Loadperterminal)

1.5 Amps Maximum Total Load(Allterminalscombined)

THERMAL DATA

Setpoint Temperature Range:

 45°Fto90°F(7°Cto32°C)

Operating Ambient Temperature Range:

 32°Fto105°F

Operating Humidity Range:

 0to90%RH(non-condensing)

Shipping Temperature Range:

 -4°Fto150°F

APPLICATIONS

Forusewith:

• Heat/coolsystemswithuptotwostagesheat,two

stages cool

DO NOT USE WITH:

• Millivoltsystems

• Systemsexceeding30VACand1.5amps

• 3-wirezonedhydronicheatingsystems

1F81-261

ProgrammableElectronic

DigitalMulti-stageThermostat

INSTALLATION AND

OPERATION INSTRUCTIONS

PART NO. 37-6228C

Replaces37-6228B

1011

PRECAUTIONS

This thermostat is intended for use with a low voltage system;

do not use this thermostat with a line voltage system. If in doubt

aboutwhetheryourwiringismillivolt,line,orlowvoltage,have

it inspected by a qualified heating and air conditioning contrac-

tor or electrician.

Do not exceed the specification ratings.

Allwiringmustconformtolocalandnationalelectricalcodes

and ordinances.

Thiscontrolisaprecisioninstrument,andshouldbehandled

carefully. Rough handling or distorting components could cause

the control to malfunction.

Operator: Save these instructions for future use!

WARNING

!

Do not use on circuits exceeding specified voltage.

Higher voltage will damage control and could cause

shock or fire hazard.

Do not short out terminals on gas valve or primary

control to test. Short or incorrect wiring will damage

thermostat and could cause personal injury and/or

property damage.

Thermostat installation and all components of the

system shall conform to Class II circuits per the NEC

code.

CAUTION

!

To prevent electrical shock and/or equipment damage,

disconnect electric power to system at main fuse or

circuit breaker box until installation is complete.

www.white-rodgers.com

www.emersonclimate.com

2

INSTALLATION

REMOVE OLD THERMOSTAT

1. Shutoffelectricityatthemainfuseboxuntilinstallationis

complete.Ensurethatelectricalpowerisdisconnected.

2. Removethefrontcoveroftheoldthermostat.With wires

still attached, remove wall plate from the wall. If the old

thermostathasawallmountingplate,removethethermostat

and the wall mounting plate as an assembly.

3. Identify each wire attached to the old thermostat using

the labels enclosed with the new thermostat.

4. Disconnectthewiresfromoldthermostatoneatatime.DO

NOT LET WIRES FALL BACK INTO THE WALL.

5. Install new thermostat using the following procedures.

ATTENTION!

Thisproductdoesnotcontainmercury.However,thisproduct

may replace a unit which contains mercury.

Donotopenmercurycells.Ifacellbecomesdamaged,donot

touchanyspilledmercury.Wearingnonabsorbentgloves,take

up the spilled mercury and place into a container which can

be sealed. If a cell becomes damaged, the unit should be

discarded.

Mercurymustnotbediscardedinhouseholdtrash.Whenthe

unitthisproductisreplacingistobediscarded,placeinasuit-

able container. Refer to www.white-rodgers.com for location to

send the product containing mercury.

ELECTRIC HEAT SYSTEMS

This thermostat is configured from the factory to operate a heat/

cool,fossilfuel(gas,oil,etc.),forcedairsystem.Itiscongured

correctlyforanysystemthatDOESNOTrequirethethermostat

toenergizethefanonacallforheat.Ifyoursystemisanelectric

heatorheat-pumpsystemthatREQUIRESthethermostatto

turnonthefanonacallforheat,locatetheGAS/ELECTRIC

switch onthethermostatbase(seeg.1)andswitchittothe

ELECTRIC position.Thiswillallowthethermostattoenergizethe

fan immediately on a call for heat. If you are unsure if the heating/

coolingsystemrequiresthethermostattocontrolthefan,contact

a qualified heating and air conditioning service person.

ATTACH THERMOSTAT BASE TO WALL

1. Removethepackingmaterialfromthethermostat.Gently

pullthecoverstraightoffthebase.Forcingorpryingonthe

thermostatwillcausedamagetotheunit.Ifnecessary,move

theelectricheatswitch(seeELECTRIC HEAT SYSTEMS,

above).

2. Connectwiresbeneathterminalscrewsonbaseusingap-

propriatewiringschematic(seegs.2through4).

3. Placebaseoverholeinwallandmarkmountingholeloca-

tions on wall using base as a template.

4. Movebaseoutoftheway.Drillmountingholes.

5. Fastenbaselooselytowall,asshowning.1,usingtwo

mounting screws. Place a level against bottom of base,

adjustuntillevel,andthentightenscrews.(Levelingisfor

appearanceonlyandwillnotaffectthermostatoperation.)

Ifyouareusingexistingmountingholes,orifholesdrilled

aretoolargeanddonotallowyoutotightenbasesnugly,

use plastic screw anchors to secure subbase.

6. Pushexcesswireintowallandplugholewithare-resistant

material(suchasberglassinsulation)topreventdraftsfrom

affecting thermostat operation.

BATTERY LOCATION

2“AA”alkalinebatteriesareincludedinthethermostatatthe

factory with a battery tag to prevent power drainage. You must

remove the battery tag to engage the batteries.

If BATTisdisplayed,thebatteriesarelowandshouldbereplaced

withfresh“AA”Energizer®alkalinebatteries.Toreplacebatteries,

installthebatteriesalongthetopofthebase(seeFig.1).The

batteriesmustbeinstalledwiththepositive(+)endtotheleft.

HYDRONIC (HOT WATER OR STEAM)

HEATING SYSTEMS

This thermostat is set to operate properly with a forced-air heat-

ingsystem.Ifyouhaveahydronicheatingsystem(asystem

thatheatswithhotwaterorsteam),youmustsetthethermostat

tooperateproperlywithyoursystem.Changethesecondop-

tioninthecongurationmenutoSL(seeCONFIGURATION

MENU,page5).

Figure 1. Thermostat Base

Mounting

holes

Mounting

holes Electric/Gas

switch

Screwanchors

3

The following wiring diagrams show typical terminal identifi-

cationandwiring.Forproperinstallation,refertotheoriginal

manufacturer's instructions.

Relay contacts shown are thermostatically operated.

NOTE

NOTE

C* R

Y2

Compressor

Contactor

Stage 1

Heat

Relay

Stage 1

Heat

Relay

Stage 2

Thermostat

Control

Circuit

24 VAC 120 VAC

Hot

Neutral

THERMOSTAT

SYSTEM

YWW2

Figure 2. Typical wiring diagram for single transformer systems

Fan

Relay

G

TRANSFORMER

Compressor

Contactor

Stage 2

*The24Voltneutralconnection

to terminal C on the thermostat

is not required if you replace

the batteries once a year with

fresh“AA”Energizer®alkaline

batteries.

C* R

Y2

Compressor

Contactor

Stage 1

Heat

Relay

Stage 1

Heat

Relay

Stage 2

Thermostat

Control

Circuit

24 VAC 120 VAC

Hot

Neutral

THERMOSTAT

SYSTEM

YWW2

Figure 3. Typical wiring diagram for two-transformer systems with NO safety circuits

Fan

Relay

G

TRANSFORMER

Compressor

Contactor

Stage 2

24 VAC120 VAC

Hot

Neutral

TRANSFORMER

TWO COMMONS MUST

BE JUMPERED TOGETHER!

CUT AND

TAPE OFF!

*The24Voltneutralconnection

to terminal C on the thermostat

is not required if you replace

the batteries once a year with

fresh“AA”Energizer®alkaline

batteries.

C* R

Y2

Compressor

Contactor

Stage 1

Heat

Relay

Stage 1

Heat

Relay

Stage 2

Thermostat

Control

Circuit

Limit or

Safety

Switches

Limit or

Safety

Switches

Limit or

Safety

Switches

Limit or

Safety

Switches

24 VAC 120 VAC

Hot

Common

Common

Neutral

THERMOSTAT

SYSTEM

YWW2

Figure 4. Typical wiring diagram for two-transformer systems with safety circuits in BOTH systems

Fan

Relay

G

HEATING

TRANSFORMER

Compressor

Contactor

Stage 2

24 VAC 120 VAC

Hot

Neutral

COOLING

TRANSFORMER

TWO COMMONS MUST

BE JUMPERED TOGETHER!

24 VAC

Accessory

Relay N.O.

Contact

*The24Voltneutralconnection

to terminal C on the thermostat

is not required if you replace

the batteries once a year with

fresh“AA”Energizer®alkaline

batteries.

WIRING

4

Cooling System

1. MoveSYSTEMswitchtoCOOL position.

2. Press to adjust thermostat setting below room tempera-

ture.Theblowershouldcomeonimmediatelyonhighspeed,

followed by cold air circulation

3. Bothstagesofthecoolingsystemshouldbegintooperate

whenthesetpointissetgreaterthan3˚Fbelowambient.

4. Press to adjust temperature setting above room tem-

perature. The cooling system should stop operating.

13

The word HOLD is displayed when the thermostat is in

the HOLD mode. HOLD is displayed flashing when the

thermostatisinatemporaryHOLDMode.

14

Displays currently programmed set temperature (this is

blankwhenSYSTEMswitchisintheOFFposition).

15

Displays FLTR when the system has run for the programmed

filter time period as a reminder to change or clean your air

filter.

16

Oneindicatesrststage,+2indicatessecondstage.

Before you begin programming your thermostat, you should

be familiar with its features and with the display and the loca-

tion and operation of the thermostat buttons. Your thermostat

consistsoftwoparts:thethermostat cover and the base. To

removethecover,pullitstraightoutfromthebase.Toreplace

thecover,lineupthecoverwiththebaseandpressuntilthe

cover snaps onto the base.

The Thermostat Buttons and Switches

1

Raises temperature setting.

2

 Lowerstemperaturesetting.

3

 TIMEbutton.

4

 PRGM(program)button.

5

 RUN(runprogram)button.

6

 HOLDtemperaturebutton.

7

 FANswitch(ON,AUTO).

8

 SYSTEMswitch(COOL,OFF,HEAT).

The Display

9

 Indicatesdayoftheweek.

10

Flame icon( ) is displayed when the SYSTEM switch

isintheHEATposition.Snowflake icon( )isdisplayed

(non-ashing)whentheSYSTEMswitchisintheCOOL

position. Snowflakeisdisplayed(ashing)ifthethermostat

isinlockoutmodetopreventthecompressorfromcycling

tooquickly.

11

Displays BATTwhenthe2“AA”batteriesarelowandshould

be replaced.

12

 Alternatelydisplayscurrenttimeandtemperature.

If at any time during testing your system does not operate

properly,contactaqualiedserviceperson.

Turn on power to the system.

Fan Operation

If your system does not have a Gterminalconnection,skipto

Heating System.

1. Movefanswitchto ON position. The blower should begin to

operate.

2. MovefanswitchtoAUTO position. The blower should stop

immediately.

Heating System

1. MoveSYSTEMswitchtoHEAT position. If the heating system

hasastandingpilot,besuretolightit.

2. Press to adjust thermostat setting above room tempera-

ture. The heating system should begin to operate.

3. Bothstagesoftheheatingsystemshouldbegintooperate

whenthesetpointissetgreaterthan3˚Faboveambient.

4. Pressto adjust temperature setting below room tem-

perature. The heating system should stop operating.

CAUTION

!

To prevent compressor and/or property damage, if the

outdoor temperature is below 50°F, DO NOT operate

the cooling system.

2

1

3 4 56 7 8

10 1315 11

14 1012 12

9

9

Figure 5. Thermostat display, buttons, and switches

SU

BATTHOLD

PM

SA

FLTR

AM

MO TU WE TH FR

TIME PRGM RUN HOLD

Fltr

FAN SYSTEM

ON AUTO COOL OFF HEAT

1+2

16

CHECK THERMOSTAT OPERATION

THERMOSTAT QUICK REFERENCE

5

CONFIGURATION MENU

The configuration menu allows you to set certain thermostat operat-

ing characteristics to your system or personal requirements.

PressRUNtomakesurethethermostatisintherunprogram

mode,thenpressPRGMandRUNatthesametimetoenter

the configuration menu. The display will show the first item in

the configuration menu.

1) Select Temporary Hold Time - The thermostat can hold any

temperature you set it to for the amount of time you select on

thisoption.Yourchoicesare0:00to8:00hoursin15minute

increments.0:00disablesthefunction

Example:

1. Youhaveselected3:00hoursfortheTemporaryHold

time period.

2. WiththethermostatsettoHeatorCool,pressHOLD

for approximately five secondsuntilHOLDtime(3:00

indicating3hours)appearsasasettingreminder.

3. Afterreleasingthebutton,HOLDonthedisplaywillblink.

4. Use or to set the temperature to your prefer-

ence. The thermostat will maintain this temperature

settingfor3hourswithHOLDblinkingtoremindyouit

isinTemporaryHold.After3hoursthethermostatwill

gobacktotheprogramtemperatureandHOLD will no

longerblinkordisplay.

2) Select FA or SL (Fast or Slow) Heating Cycle Rate - The

FAsettingisfrequentlyusedforgas,oilorelectricheat.The

SLsettingproducesalongerheatingcyclewhichisnormally

for hot water or steam (hydronic) systems. Both settings

produce very accurate temperature control and can be set

toyourpersonalpreference.FAcyclesthesystemjustunder

1°FandtheSLsettingcyclesatapproximately1.5°F.

3) Select backlit display -The display backlight improves

displaycontrastinlowlightingconditions.Selectingbacklight

Press or to select:

1

Step Press Button(s) COMMENTS

Displayed (Factory Default)

HOLD

(0:00)

0to8hrs(in

15minuteincrements)

2

(FA)

SL

SelecttemporaryHoldtime

4

5

E

(ON)

OFF

6

7

LOC

(OFF)

ON

0HI

(0)

4LOto

4HI

(F) C

Returns to normal operation

9

10

SelectEnergyManagementRecoveryOFForON

SelectcompressorlockoutOFForON

Selecttemperaturedisplay adjustment higher or lower

SelecttemperaturedisplaytoForC

SelectONtostart2ndstageimmediatelywhenthe

setpointismanuallyraisedmorethan3°FinHEAT or

loweredmorethan3°FinCOOLfromroomtemperature

RUN

PRGM

and RUN

HOLD

*

HOLD

*

3

d-L

(ON)

OFF

OFF

Selectdisplay backlightOFForON

HOLD

*

HOLD

*

Filter

(000)

0to1950hours

(in50hourincrements)

Selectfilterreplacementrun time

HOLD

*

HOLD

*

HOLD

*

SelectFAorSL(FastorSlow)heatingcyclerate

Configuration Menu

*Press

HOLDtoadvance to next item or TIMEtomove backwards to previous item

1+2

FA

(ON)

INSTALLER/CONFIGURATION MENU

The conguration menu table summarizes the conguration

options.Anexplanationofeachoptionfollows.

PressHOLDtochangetothenextmenuitemorpressTIME

togobackwardstothepreviousiteminthemenu.Toexitthe

menuandreturntotheprogramoperation,pressRUN.Ifno

keys are pressed within fteen minutes, the thermostat will

revert to normal operation.

ONwillkeepthelightonforashortperiodoftimeafterany

keyispressed.SelectingOFFwillkeepthelightoff.

4) Select Energy Management Recovery OFF or ON

- Energy Management Recovery (EMR) causes the

thermostat to start heating or cooling early to make the

building temperature reach the program setpoint at the

timeyouspecify.Heatingwillstart5minutesearly,cooling

15minutesearly,for every 1°of temperature required to

reach setpoint.

Example:YouselectEMRandhaveyourheatingprogrammed

to65°atnightand70°at7AM.Ifthebuildingtemperature

is65°thedifferencebetween65°and70°is5°.Allowing

5 minutes per degree the thermostat setpoint will change

to70°at6:35AM.Coolingrequiresmoretimeperdegree

becauseittakeslongertoreachtemperature.

5) Select filter replacement run time - The thermostat will

display FLTR after a set time of operation. This is a reminder

to change or clean your air filter. This time can be set from

0to1950hoursin50hourincrements.A selection of 000

will cancel this feature. When FLTRisdisplayed,youcan

clear it by pressing HOLD and RUN at the same time. This

resets the timer and starts counting the hours until the next

lterchange.Changingthetimeinthemenualsoresetsthe

timer.

6) Select Compressor Lockout LOC OFF or ON-Selecting

LOCONwillcausethethermostattowait5minutesbefore

turning on the compressor if the heating and cooling system

6

loses power. It will also wait 5 minutes minimum between

cooling cycles. This is intended to help protect the compres-

sorfromshortcycling.Somenewercompressorsalready

have a time delay built in and do not require this feature.

Your compressor manufacturer can tell you if the feature is

already present in their system. When the compressor time

delayoccursitwillashthe(snowakeicon)foraboutve

minutes then turn on the compressor.

7) Select Temperature Display Adjustment 4 LO to 4 HI-Al-

lowsyoutoadjusttheroomtemperaturedisplay4°higheror

lower. Your thermostat was accurately calibrated at the factory

MANUAL OPERATION

• HOLD TEMPERATURE—WiththeSYSTEMswitchsetto

HEAT or COOL,momentarilypressHOLDbutton.HOLD will

bedisplayed.Use or to adjust the temperature. The

thermostat will hold the room temperature at the selected

setting until you press RUN button to return to program

operation.

• TEMPERATURE OVERRIDE—Press or until the

display shows the temperature you want. The thermostat

willoverridecurrentprogrammingandkeeptheroomtem-

perature at the selected temperature until the next program

period begins. Then the thermostat will automatically revert

totheprogram.Raisingthetempinheating3˚Fabovethe

roomtempwillactivateanysecondstageheating.Lowering

thetemp3˚Fbelowtheroomtempincoolingwillactivate

any second stage cooling.

• TEMPORARY HOLD TEMPERATURE —The thermostat

can hold any temperature within its range for the length of

timeselectedinthecongurationmenu.SeeConguration

Menusection,step1.

PROGRAMMING YOUR THERMOSTAT

This section will help you plan your thermostat’s program to

meetyourneeds.Formaximumcomfortandefciency,keepthe

following guidelines in mind when planning your program.

• Whenheating(cooling)yourbuilding,programthetempera-

turestobecooler(warmer)whenthebuildingisvacantor

during periods of low activity.

INSTALLER/CONFIGURATION MENU

OPERATION AND PROGRAMMING

WEEKDAYS

(5 Day)

SATURDAY

(1 Day)

Start

Time Temp

Start

Time Temp

1ST

2ND

3RD

4TH

1ST

2ND

3RD

4TH

SAMPLE

Heating/Cooling Schedule Plan (Factory Program)

Period

6:00AM

8:00AM

5:00PM

10:00PM

6:00AM

8:00AM

5:00PM

10:00PM

6:00AM

8:00AM

5:00PM

10:00PM

6:00AM

8:00AM

5:00PM

10:00PM

70°F

62°F

70°F

62°F

78°F

85°F

78°F

82°F

SUNDAY

(1 Day)

Start

Time Temp

6:00AM

8:00AM

5:00PM

10:00PM

6:00AM

8:00AM

5:00PM

10:00PM

70°F

62°F

70°F

62°F

78°F

85°F

78°F

82°F

70°F

62°F

70°F

62°F

78°F

85°F

78°F

82°F

HEAT

COOL

WEEKDAYS

(5 Day)

SATURDAY

(1 Day)

Start

Time Temp

Start

Time Temp

1ST

2ND

3RD

4TH

1ST

2ND

3RD

4TH

Heating/Cooling Schedule Plan

Period

SUNDAY

(1 Day)

Start

Time Temp

HEAT

COOL

but you have the option to change the display temperature

to match your previous thermostat.

8) Select F° or C° Readout-Changesthedisplayreadoutto

CentigradeorFahrenheitasrequired.

9) Select Stage Fast (ON or OFF)-WhenselectedON,the

second stage starts as soon as the setpoint temperature

ismanuallyraised3°Finheatorlowered3°Fincoolfrom

roomtemperature.WhenselectedOFF,thesecondstage

will delay approximately 15 minutes before starting.

• Duringearlymorninghours,theneedforcoolingisusually

minimal.

Planning Your Program

Look at the factory preprogrammed times and temperatures

shown in the sample schedule. If this program will suit your

needs,simplypresstheRUNbuttontobeginrunningthefac-

tory preset program.

If you want to change the preprogrammed times and tempera-

tures,followthesesteps.

Determinethetimeperiodsandtemperaturesforyourweekday

and weekend programs. You must program four periods for

boththeweekdayandweekendprogram.However,youmay

use the same heating and cooling temperatures for consecutive

timeperiods.Youcanchoosestarttimes,heatingtemperatures,

andcoolingtemperaturesindependentlyforbothweekdayand

weekendprograms(forexample,youmayselect5:00AMand70°

astheweekday1st period heatingstarttimeandtemperature,

andalsochoose7:00AMand76°astheweekday1st period

coolingstarttimeandtemperature).

Usethefollowingtabletoplanyourprogramtimeperiodsandthe

temperaturesyouwantduringeachperiod.Fillinthecomplete

table to have a record of your programs.

7

Entering Your Program

Followthesestepstoentertheheatingandcoolingprograms

you have selected.

Set Current Time and Day

1. PressTIME button once. The display will show the hour

only.

 EXAMPLE:

PM

2. Pressandholdeither or until you reach the correct

hourandAM/PMdesignation(AM begins at midnight; PM

beginsatnoon).

3. PressTIMEonce.Thedisplaywindowwillshowtheminutes

only.

 EXAMPLE:

4. Pressandholdeither or until you reach the correct

minutes.

5. Press TIME once. The display will show the day of the

week.

6. Press or until you reach the current day of the

week.

7. PressRUNonce.Thedisplaywillshowthecorrecttimeand

room temperature alternately.

Enter Heating Program

1. MovetheSYSTEMswitchtoHEAT.

2. PressPRGMonce.“MO TU WE TH FR”(indicatingweekday

program)willappearinthedisplay.Alsodisplayedarethe

currently programmed start time for the 1st heating period

andthecurrentlyprogrammedtemperature(ashing).

EXAMPLE:

AM

MO TU WE TH FR

 Thisdisplaywindowshowsthatforthe1stweekdayperiod,

thestarttimeis6:00AM,and68°istheprogrammedtem-

perature(thisexamplereectsfactorypreprogramming).

3. Press or to change the displayed temperature to your

selected temperature for the 1st heating program period.

4. PressTIMEonce(theprogrammedtimewillash).Press

or until your selected time appears. The time will

change in 15 minute increments. When your selected time

isdisplayed,pressTIMEagaintoreturntothechangetem-

perature mode.

5. PressPRGMonce.Thecurrentlyprogrammedstarttimeand

setpoint temperature for the 2nd heating program period will

appear.

6. Repeatsteps3and4toselectthestarttimeandheating

temperatureforthe2ndheatingprogramperiod.

7. Repeatsteps3through5forthe3rdand4thheatingprogram

periods.Weekdayheatingprogramsarenowcomplete.

8. PressPRGMonce.“SA”(indicatingSaturdayprogram)will

appearinthedisplay,alongwiththestarttimeforthe1stheat-

ing period and the currently programmed temperature.

9. Repeat steps 3 through 7 to complete Saturday heating

programming.

10.PressPRGMonce.“SU”(indicatingSundayprogram)willap-

pearinthedisplay,alongwiththestarttimeforthe1stheating

period and the currently programmed temperature.

11.Repeatsteps3through7tocompleteSundayheatingpro-

gramming.

12.Whenyouhavecompletedenteringyourheatingprogram,

pressRUN.

Enter Cooling Program

1. MoveSYSTEMswitchtoCOOL position.

2. Follow the procedure for entering your heating program,

using your selected cooling times and temperatures.

CHECK YOUR PROGRAMMING

Followthesestepstocheckyourthermostatprogrammingone

final time before beginning thermostat operation.

1. MoveSYSTEMswitchtoHEAT position.

2. PressPRGMtoviewthe1stweekdayheatingperiodtimeand

temperature.EachtimeyoupressPRGM,thenextheating

period time and temperature will be displayed in sequence for

weekday,thenweekendprogramperiods(youmaychange

anytimeortemperatureduringthisprocedure).

3. PressRUN.

4. MoveSYSTEMswitchtoCOOL position.

5. Repeatstep2tocheckcoolingprogram.

6. MoveSYSTEMswitchtoHEAT or COOLandpressRUNto

begin program operation.

YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED AND

READY TO PROVIDE MAXIMUM COMFORT AND EFFICIENCY!

OPERATION AND PROGRAMMING

CAUTION

!

If the outside temperature is below 50°F, disconnect

power to the cooling system before programming.

Energizing the air conditioner compressor during

cold weather may cause personal injury or property

damage.

8

Reset Operation

Ifavoltagespikeorstaticdischargeblanksoutthedisplayor

causes erratic thermostat operation you can reset the thermostat

by pressing , andTIMEatthesametime.Thisalsoresets

the factory defaults to the configuration menu and program. If

TROUBLESHOOTING

thethermostathaspower, hasbeenresetand stilldoesnot

function correctly contact your heating/cooling service person

or place of purchase.

Batteries

Foroptimumperformance,werecommendreplacingbatteries

onceayearwithfresh“AA”Energizer®alkalinebatteries.

Symptom Possible Cause Corrective Action

No Heat/No Cool/No Fan

(common problems)

Blownfuseortrippedcircuitbreaker.1.

FurnacepowerswitchtoOFF.2.

Furnaceblowercompartmentdooror3.

panel loose or not properly installed.4.

Replacefuseorresetbreaker.

TurnswitchtoON.

Replace door panel in proper position to engage

safetyinterlockordoorswitch.

No Heat Pilotlightnotlit.1.

SystemSwitchnotsettoHeat.2.

Looseconnectiontothermostatorsystem.3.

FurnaceLock-OutCondition.Heatmayalso4.

be intermittent.

HeatingSystemrequiresserviceor5.

thermostat requires replacement.

Re-light pilot.

SetSystemSwitchtoHeatandraisesetpointaboveroomtemperature.

Verifythermostatandsystemwiresaresecurelyattached.

Manyfurnaceshavesafetydevicesthatshutthesystemdownwhen

alock-outconditionoccurs.Iftheheatworksintermittentlycontact

the furnace manufacturer or local service person for assistance.

Diagnostic:SetSystemSwitchtoHeatandraisethesetpointabove

roomtemperature.Withinafewsecondsthethermostatshouldmake

asoftclicksound.Thissoundusuallyindicatesthethermostatis

operatingproperly.Ifthethermostatdoesnotclick,trythereset

operationlistedabove.Ifthethermostatdoesnotclickafterbeing

reset contact your heating and cooling service person or place of

purchaseforareplacement.Ifthethermostatclicks,contactthe

furnace manufacturer or a service person to verify the heating system

is operating correctly.

No Cool SystemSwitchnotsettoCool.1.

Looseconnectiontothermostatorsystem.2.

CoolingSystemrequiresserviceor3.

thermostat requires replacement.

SetSystemSwitchtoCoolandlowersetpointbelowroomtemperature.

Verifythermostatandsystemwiresaresecurelyattached.

SameprocedureasdiagnosticforNoHeatconditionexceptsetthe

thermostattoCoolandlowerthesetpointbelowtheroomtemperature.

There may be up to a five minute delay before the thermostat

clicksinCoolingifthecompressorlock-outoptionisselectedinthe

congurationmenu(Item6).

Heat, Cool or Fan Runs Constantly. FanSwitchsettoFanOn.1.

Possibleshortinwiring.2.

Possibleshortinthermostat.3.

PossibleshortinHeat/Cool/Fansystem.4.

Checkeachwireconnectiontoverifytheyarenotshortedortouching

together.Nobarewireshouldstickoutfromunderterminalscrews.Try

resetting the thermostat as described below. If the condition persists

the manufacturer of your system or service person can instruct you on

howtotesttheHeat/Coolsystemforcorrectoperation.Ifthesystem

operatescorrectly,replacethethermostat.

Furnace Cycles Too Fast or Too Slow

(narrow or wide temperature swing)

Thelocationofthethermostatand/orthesize1.

oftheHeatingSystemmaybeinuencing

the cycle rate.

Item2intheCongurationMenuistheadjustmentthatcontrols

the cycle rate. If an acceptable cycle rate is not achieved using the

FA(Fast)orSL(Slow)adjustmentcontactalocalservicepersonfor

additional suggestions.

Cooling Cycles Too Fast or Too Slow

(narrow or wide temperature swing)

Thelocationofthethermostatand/orthesize1.

oftheCoolingSystemmaybeinuencingthe

cycle rate.

Thecyclerateforcoolingisxedandcannotbeadjusted.Contacta

local service person for suggestions.

Thermostat Setting and Thermometer

Disagree

Thermostat thermometer setting requires 1.

adjustment.

Thethermometercanbeadjusted+/-4degreesas

listedinitem7oftheCongurationMenu.Nootheradjustmentis

possible.

Clock Loses or Gains Time Lossofpowertothermostatandlow1.

batteries.

The thermostat will maintain its program in memory even with no

power/nobatteriesbuttheclocktimewillbeincorrectwhenpoweris

restored.SeeNoHeat/NoCool/NoFan(commonproblems)abovefor

itemstocheckinthesystem.

Heat or Cool Starts Early EMRactivated1. SeeCongurationMenu(Item4).

Thermostat Does Not Follow

Program

AMorPMsetincorrectlyinprogram.1.

AMorPMsetincorrectlyontheclock.2.

Voltagespikeorstaticdischarge.3.

CheckcurrentclockandprogramsettingsincludingtheAMorPM

designationsforeachtimeperiod.Ifavoltagespikeorstaticdischarge

occursusetheResetOperationlistedabove.

Blank Display and/or Keypad Not

Responding

Lossofpoweranddeadbatteries.1.

VoltageSpikeorStaticDischarge.2.

Replacebatteriesandcheckheat/coolsystemforproperoperation.Ifa

voltagespikeorstaticdischargeoccursusetheResetOperationlisted

above.

White-Rodgers is a division

ofEmersonElectricCo.

TheEmersonlogoisa

trademarkandservicemark

ofEmersonElectricCo.

www.white-rodgers.com

www.emersonclimate.com