Robertshaw SMART 2000 User manual

www.robertshaw.com
©2015 Robertshaw 2/15 – 352-00194-001
SMART 2000
Digital Programmable Thermostat
Owners Manual

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IMPORTANT SAFETY INFORMATION
WARNING: ELECTRICAL SHOCK HAZARD – Turn off power at the main
power source by unscrewing fuse or switching circuit breaker
to the OFF position before installing, removing, or cleaning
this thermostat.
WARNING: FIRE AND ELECTRIC SHOCK HAZARD – This device should be
installed by a qualified service technician with due regard
for safety as improper installation could result in a fire and
electric shock hazard.
WARNING: FIRE AND ELECTRICAL SHOCK HAZARD – This is a 24V AC
low-voltage thermostat. Do not install on voltages higher than
30V AC.
• Do not switch system to cool if the temperature is below 50°F (10°C). This can
damage your cooling system and may cause personal injury.
• Do not short (jumper) across terminals on the gas valve or at the system control
to test installation. This will damage the thermostat and void the warranty.
• Do not connect ground to any terminal in this unit.
• All wiring must conform to local and national building and electrical codes and
ordinances.
• Use this thermostat only as described in the manual.

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TABLE OF CONTENTS
Introduction 6
Programming the SMART 2000 8
Common Functions 11
SMART2000Buons 11
Control Modes 13
SMART2000FanFuncons 15
Single Fan Speed 16
Three Fan Speed 16
SMART 2000 LCD 18
Padlock Symbol 18
Wrench Icon 19
Satellite Symbol 19
Locked 19
Clean Filter 20
RECO 20
HOLD 20
FAULT 20
ModBusCommunicaons 21
Remote Temperature Sensors 21

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Residential Programmable Mode 22
On/OandModeSelecon 22
SengtheFanFuncons 22
SengtheClock 23
Programming Your Four Daily Events 23
To Enter The Program Mode 25
To Set a Permanent Program Hold 29
To Review the Set Temperature 30
Commercial Programmable Mode 30
On/OandModeSelecon 30
SengtheFanFuncons 30
SengtheClock 31
Programming Your Two Daily Events 31
To Enter the Program Mode 32
AerHoursRunTimer 35
To Review the Set Temperature 35
Manual Mode 36
On/OandModeSelecon 36
SengtheFanFuncon 36
SengtheClock 36
SengYourDesiredTemperature 37
SwitchingBetweenDayandNightSetpoints 37
To Review the Set Temperature 38

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Thank you for purchasing a Uni-Line®SMARTSENSEtm thermostat. The SMART 2000
isamul-funconthermostat.IfproperlyinstalledyourSMART2000thermostat
will provide you with many years of trouble free comfort.
TheSMART2000hasbeenbuilttobeanaracve,highlyreliableandaneasy
tousethermostat.Bytakingthemetoreadandunderstandthesesimple
instruconsyoucantakeadvantageofmanyofthecapabiliesthatareoeredin
this premium product.
Specifications 38
Troubleshooting 40
One Year Limited Warranty 45

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INTRODUCTION
TheSMART2000thermostatisabletobeusedasaresidenalprogrammable
thermostat,acommercialprogrammablethermostatorasasimpletousemanual
thermostat. Your installer has selected the mode to best suit your individual
needs.
You can check the SMART 2000 display to determine if your thermostat is:
Programmable or Manual
CommercialorResidenal
Whenpoweristurnedon,theSMART2000willperformashortstart-upand
begintooperate.TodetermineifthethermostatisoperanginProgrammable
CommercialorProgrammableResidenalmode,lookatthetopledisplay
window.
• IfthewordSTARTorSTOPisdisplayed,themodeisProgrammable
Commercial.
• Ifadarkboxwithanumberisdisplayed,themodeisProgrammable
Residential.
• IfthewordDAYorNIGHTisdisplayed,thethermostatisoperatinginadual
setpoint mode.
• Ifnothingisdisplayed,thethermostatisoperatinginaSINGLEsetpoint
Manual mode.

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TofurtherdetermineiftheManualmodeisResidenalorCommercial,usethe
MODEbuon.
• Press the MODE button until the left center window displays MODE and HEAT.
• Press the pbutton to display SET and a temperature setting in the large
window.
• Press pagain to raise the number by one degree.
• Remember to record that new number.
• Press MODE to exit.
• Press the MODE button until the left center window displays MODE and COOL.
• Press the pbutton to display SET and a temperature.
• If the temperature number is the same as the new number of the previous
setting,thenthisthermostathasasinglesetpoint.Thismeansitisoperatingas
a Manual Commercial thermostat.
• Ifthetwotemperaturenumbersaredifferent,thethermostathastwo
setpoints,andtheoperatingmodeisManualResidential.
Forclarity,thisusermanualisbrokenintothefollowingmainsecons.
ResidenalProgrammableMode.Seepage11.
Commercial Programmable Mode. See page 11.
Manual Mode. See page 12.
CommonFunconstoallmodes.Seepage11foraddionalfuncons.

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TheSMART2000thermostatcanbeconguredbyyourinstallerfora
largevarietyofconguraonsandfunconssothatyourthermostat
is set to meet your individual needs. This manual may describe a
funconorfeaturenotacveonyourthermostat.
PROGRAMMING THE SMART 2000
Thisthermostathasseveralfeaturesandoperangmodesthattheusershould
become familiar with before programming.
The steps to properly program your SMART 2000 are:
• Determine which type of thermostat (programmable or manual) you have.
• Take the time to write down any temperature settings or start/stop times you
willbeusing,Table1-HeatingandTable2-Cooling.
Commercial: Single setpoint or two setpoints
Residential: Day/night setpoints or seven day with four events.
NOTE: The heat setpoint cannot be set higher than the cool setpoint and the
cool setpoint cannot be set lower than the heat setpoint.
• Review the Common Functions section.
• UsethesectionthatdescribesyourSMART2000(Residential,Commercial,or
Manual) and follow the steps provided.

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Table 1 
DAY Program 1 Program 2 Program 3 Program 4
Monday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Tuesday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Wednesday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Thursday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Friday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Saturday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Sunday Time
Temp
Time
Temp
Time
Temp
Time
Temp

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Table 2 Cooling Schedule
DAY Program 1 Program 2 Program 3 Program 4
Monday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Tuesday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Wednesday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Thursday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Friday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Saturday Time
Temp
Time
Temp
Time
Temp
Time
Temp
Sunday Time
Temp
Time
Temp
Time
Temp
Time
Temp

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COMMON FUNCTIONS
SMART 2000 Buttons
MODE
PressthisbuontocycletheSMART2000thermostatthroughtheavailable
modes:Heatonly,Coolonly,Autochangeovermode,EmergencyHeat(if
ed),andOFF.WhensengthethermostattoOFFmode,thefanmodewill
changeautomacallytoFanAutomodesothefandoesnotconnuetorun
unexpectedly.
NOTE: Not all modes may be active on your thermostat.

Commercial Programmable Mode
Thisbuoniniatestheaerhoursrunmer.Thisisaninstallerprogrammed
period which replaces the stop program temperatures and temporarily uses
the start program temperatures for a pre-set 2-hour period. A second press
willcanceltheaerhoursrunmer.

TheO/RIDEbuonisusedtooverridethecurrentprogramsmeschedule
andtoholdthecurrentlysettemperatureindenitely.HOLDwillbedisplayed
intheLCDtoconrmthisfunconisacve.Thissettemperaturewillbe
maintainedunlreleasedbypressingtheO/RIDEbuonagain.

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p
Usethisbuontoincreasethedesiredroomtemperaturefortheheangor
coolingmodes,orincreasea“value”inprogrammingmodes.Alsousedto
override the pre-programmed temperatures and temporarily replace them
with a new higher set temperature for a 2-hour period. The user can change
thisoverrideperiodtoholdunlthenextscheduledevent.

Usethisbuontodecreasethedesiredroomtemperatureforheangor
coolingmodes,ordecreasea“value”inprogrammingmodes.Alsousedto
override the pre-programmed temperatures and temporarily replace them
with a new lower set temperature for a 2-hour period. The user can change
thisoverrideperiodtoholdunlthenextscheduledevent.


PressthePROGbuontobeginsengtheclock.PressandholdthePROG
buonforthreesecondstobeginprogrammingyourdailyevents.
In Manual mode:
PressthePROGbuontoswitchbetweenDayandNightmodes.Pressand
holdthePROGbuonforthreesecondstosettheclock.

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FAN
Single Speed Fan Systems
PressthisbuontocyclebetweenConnuousFan(FanON)andAutoFan.
Three Speed Fan Systems
Pressthisbuontocyclebetweenthesevenavailablefanmodes:LowSpeed,
MediumSpeed,HighSpeedandAutoFanSpeedsinAutoFanmodeandthen
LowSpeed,MediumSpeed,HighSpeedinFanONmode.
IftheSMART2000isOFF,pressingtheFANbuonwillturnthefanONorOFF
as desired. If your system has three fan speeds these can also be selected by
pressingtheFANbuon.
CONTROL MODES
Heat Only Mode
TheSMART2000thermostatwillturnontheHeangwhentheroom
temperature falls below the Heat setpoint temperature. In Heat Only
mode,thethermostatwillNOTbringontheCoolingregardlessoftheroom
temperatureandtheCoolingsetpointtemperature.InHeatOnlymode,only
the word HEAT will be displayed in the LCD. When your thermostat is calling
forheat,thewordHEATINGwillbedisplayedintheLCD.
IfthewordHEATisashingintheLCD,theSMART2000isperformingasafety
an-cycledelaypriortorestarngtheheang.

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Emergency Heat Mode
TheSMART2000thermostatwillonlyuseyouremergencyheangdevice
tomaintainyourdesiredheangtemperature.Thismethodofheangcan
be quite expensive therefore it is not recommended to use emergency heat
modeunlessitisessenal.Whenyouraircondioningsystemisheang
usingemergencyheat,thewordE.HEATintheLCDwillchangetotheword
E.HEATING.
Cool Only Mode
The SMART 2000 thermostat will turn on Cooling when the room temperature
risesabovetheCoolsetpoint.InCoolOnlymode,thethermostatwillNOT
turnontheHeangregardlessoftheroomtemperatureandHeangsetpoint
temperature.InCoolOnlymode,onlythewordCOOLwillbedisplayedinthe
LCD.Whenyouraircondioningsystemiscooling,thewordCOOLintheLCD
will change to the word COOLING.
IfthewordCOOLisashingintheLCDtheSMART2000isperformingasafety
an-cycledelaypriortorestarngtheCooling.
Auto Changeover Mode
TheSMART2000thermostatwillturnONtheHeangiftheroomtemperature
falls below the Heat setpoint temperature and the Cooling if the room
temperature rises above the Cool setpoint. This is the recommended mode as
itprovidesautomaccontroloftheaircondioningsystemtomaintainthe

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desired room temperature. Auto Changeover mode is indicated by both the
words HEAT and COOL in the LCD.
IfthewordHEATorCOOLisashingintheLCDtheSMART2000isperforming
asafetyan-cycledelaypriortorestarngtheaircondioningsystem.
SMART 2000 Fan Functions
Auto Fan Mode
IfAutoFanmodewiththeFANbuonisselected,theindoorfanwillturn
ONwhentheheangorcoolingturnson,andOFFagainoncetheheang
orcoolingturnso.Toconserveenergy,yourfanmayconnuetorun
momentarilyaertheheangorcoolinghasstoppedtoextractallthe
warmorcoolairsllremainingintheaircondioningsystemandbringthat
condionedairintothebuilding.
Fan On Mode
ManualThermostatMode-Yourfanwillrunconnuously.
ProgrammableThermostatMode-ByselecngFanOnorConnuousFan
modethethermostatindoorfanmayoperateconnuouslybetweenthe
START or number 1 programs and the STOP or number 4 programs and then
turnONandOFFasrequiredwithheangandcoolingoutsideofthose
programmed events.

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NOTE: Your installer may have activated some of the many advanced
indoor fan management capabilities of the thermostat that
work in partnership with the Fan On Mode. This may result in
the fan operating differently than described above. If you find
thistobethecaseandundesirable,pleasecontactyour
authorized service agent for advice on altering the function.
Single Fan Speed
Ifyouraircondioningsystemhasonefanspeed,yourthermostatwilldisplaythe
faninformaonshowninFigure1.ThewordsHIGH,MEDorLOWwillbeabsent
from the LCD.
PressingtheFANbuonwillallowyoutoselecteitherFanOnmodeorAutoFan
mode as described above.
Three Fan Speed
Ifyouraircondioningsystemisedwiththreefanspeeds,yourthermostatwill
display the fan speeds as shown in Figure 2.

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Figure 1 Figure 2
PressingtheFANbuonwillstepthefanspeedseleconthroughLOW,thenMED,
then HIGH fan and Auto fan speed (indicated by all three fan speeds being shown
ontheLCD)inautofanmode,theLOW,MEDandHIGHinFanOnmode.IfAuto
FanSpeedhasbeenselected,thethermostatwillindicatetheselectedfanspeed
byashingtheappropriatewordintheLCD.
IfAutoFanSpeedhasbeenselected,yourthermostatwillautomacallyselectthe
mostappropriatefanspeedbasedonthedierencebetweentheroomandset
temperatures.

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SMART 2000 LCD
Figure 3
NOTE: Your thermostat is capable of many advanced control
capabilities designed to both save energy and improve comfort
levels.Ifanypartofthedisplayisflashingduringnormaluse,a
safety,energymanagementorprogramdelay/overrideis
in progress.
Padlock Symbol
Wheneverthissymbolisshown,acontrollimithasbeenreachedandabuonor
afunconhasbeenlockedout.

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Wrench Icon
IfyouseeawrenchsymbolashingonyourLCD,theinstallerhasleyour
thermostat in Commissioning Mode. Although your thermostat will operate
yourheangandcoolingsystemwhileinCommissioningMode,allacvesafety
andenergyconservaondelayshavebeendisabled.ItisthereforeHIGHLY
recommended that you contact your installer and request that the Commissioning
Mode be disabled.
Satellite Symbol
Thisindicatesthatyourthermostatisreceivinginformaonfromabuilding
managementsystem(orBMS).TheinformaonreceivedfromtheBMSmay
changethefuncon(modeorsettemperature)ofthethermostat.
Locked
Thetemperatureoftheoutsideaircaniniateorpreventcertainfuncons
withinthethermostatcontrollogic.Ifsuchafunconhasbeenpreventedbased
ontheoutsideairtemperature,thewordLOCKEDappears.Thesefunconswill
automacallyunlockoncetheoutsideairtemperaturebecomesfavorable.

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Clean Filter
Thisisaremindertoyoutocleanorreplaceyourreturnairlter.Onceyouhave
cleanedorreplacedyourreturnairlter,PRESSandHOLDboththeMODEand
FANbuonstogetherfor5seconds.TheLCDwillblink,theltercounterwillreset
and the text CLEAN FILTER will vanish.
RECO
IftheAdapveRecoverymodeisacve,thethermostatwillpre-warmorpre-cool
your building to ensure your set temperatures are reached by your scheduled
eventstartme.Wheneverthethermostatisperformingapre-warmingor
cooling,thewordRECO(recovery)willbeshownontheLCD.
HOLD
ThisindicatesthattheresidenalprogramisONHOLD(inacve)andapermanent
set temperature is being used. This temperature can be changed manually if
desired.Automacme-basedtemperaturechangesaresuspended.
FAULT
ThisindicatestheSMART2000hasbeenrequestedtoshutdowntheheang,
coolingoraircondioningsystemasaresponsefromanexternalcommand.
Thisrequestmayhavecomefromasensoredtotheaircondioningsystem,
asensormonitoringsupplypower,oramultudeofinterlocks.Thisfaultwould
requireaservicecalltoyouraircondioningserviceperson.