White Rodgers 1F81-261 User manual

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 DigitalThermostat
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 Con 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 Con 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 Con 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
Theconfigurationmenu allows you toset 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) SelectTemporary HoldTime - 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) SelectTemperature 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
• HOLDTEMPERATURE—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 WETH 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 requires1.
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