Smart temp SMT?770 Guide de l'utilisateur

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InstallerManual

SMT‐770ChameleonMultifunctionThermostat

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Ver3.0

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Thisdocumentitnottypicallyleftwiththeuserasitcontainsinformationonsetting

valueswhich,ifnotcorrectlysetmaydamagetheheating,coolingorairconditioning

systemorseriouslyaffectitsperformanceorenergyconsumption.

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GreatefforthasbeentakentomakingtheSMT‐770thermostatsystemintuitive,

reliableandeasytoinstall.Usingacommonsenseapproachtotheinstallationwill

ensurethisproductisinstalledeasilyandtothecustomer’ssatisfaction.Pleaseread

andunderstandthisinstructionmanualsothatinstallation,testingandcommissioning

processisundertakeninanefficientandeffectivemanner.

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Thismanualistobeusedinconjunctionwiththesuppliedusermanual.

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Greatcarehasbeentakeninthepreparationofthismanual.SmartTempAustraliaP/Ltakesno

responsibilityforerrorsoromissionscontainedinthisdocument.Itistheresponsibilityoftheuser

toensurethisthermostat,ortheequipmentconnectedtoitisoperatingtotheirrespective

specificationsandinasafemanner.

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DuetoongoingproductimprovementSmartTempAustraliaP/Lreservestherighttochangethe

specificationsoftheSMT‐770thermostat(oritscomponents)withoutnotice.

Allrightsreserved.©SmartTempAustraliaP/L2011

Intellectualrightsapply.

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TableofContents

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Installation..................................................................................................................4

Mountingthewallcontroller..............................................................................................5

Settingthehardwareswitches...........................................................................................6

TTTerminalFunctions..................................................................................................9

OutsideAirSensorwiring.................................................................................................10

RemoteAirTemperaturesensorwiring............................................................................10

AveragingTemperaturesensors.......................................................................................11

RemoteON/OFFfunction...............................................................................................11

Usingthe“OccupancyMode............................................................................................11

SupplyAirTemperatureMonitoring.................................................................................12

TypicalDrawings........................................................................................................12

Attachingthethermostat...........................................................................................18

AdvancedInstallerSettings........................................................................................19

Commissioning..........................................................................................................34

UsingRemoteTemperatureSensors...........................................................................37

AdvancedFunctions...................................................................................................38

Specifications.............................................................................................................43

SensorReferenceTable....................................................................................................43

Troubleshooting.........................................................................................................44

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Installation

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Aswithanyairconditioningprojectundertaken,carefulinstallationisthekeytoa

successfuloutcome.Timetakenduringthisinstallationprocesswillberewardedwitha

happycustomerandfewercall‐backs.

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ThestepsrequiredtoinstalltheSMT‐770thermostatare‐

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1. ReadandunderstandthismanualandtheUsermanual.

2. MounttheSMT‐770backplateinasuitablelocation.

3. Setthe8DIPswitchestomatchtheneedoftheproject/user.

4. Wiretheoptionalremotetemperaturesensor(s)orswitchesifrequired.

5. Poweruptheairconditioningsystem.

6. Settheinstallersoftwareoptions(ifrequired).

7. ProgramandsetuptheSMT‐770thermostat.

(TheUserManualwillassistwiththis).

8. Testtheheating,coolingandotherfunctions–Commissioning.

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Forconveniencethelayoutofthismanualisinthesameorderasthestepslistedabove.

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MountingtheSMT‐770thermostat.

TheSMT‐770canonlybeasaccurateastheonboardtemperaturesensor,orits

optionalremotetemperaturesensor(s)permit.ItisthereforeessentialthattheSMT‐

770beinstalledinalocationthatistypicaloftheambientroomtemperature.Donot

installthethermostatinadraft,nearafloor,behinddoorsoronanon‐insulated

externalwall.Alsoavoidplacingthethermostatinareaswheretheairmovementis

limited,affectedbydirectsunlightorotherareasnot“typical”ofthetemperatureof

theroom.

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Further,whenmountingtheSMT‐770beawarethatdrafts

maytraveldowntheinsideofcavitywalls,(especiallyif

mountedonexternalwalls)andenterthebackof

thethermostatorsensorenclosurethroughthe

cableentryholesinthewall.Itisimportanttofully

sealtheseholestopreventanydraftsaffectingthe

internallymountedtemperaturesensor.Itis

recommendedtomounttheSMT‐770orremotesensors

between1.5&1.7metresfromthefloorwherepossible.

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Movethecontrolwiresthroughthelargeopeninginthethermostatbaseplatethen

placethethermostatbaseonthewallandusingappropriatescrews,firmlyattachthe

thermostatbasetothewall.Blockanyholeswherecablesenterthebackofthe

thermostattopreventdraftsenteringthroughtheseholesaffectingthesensor.

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Settingthehardwareswitches

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SwitchOf

Sw1–FanSpeeds1SpeedFan 3SpeedFan 

Sw2–EquipmentTypeHeatCool HeatPump(O/Bterminals)

Sw3–Stages1Stage2Stages

Sw4–ReversingValve

IfSw2=ON–HeatPump

Energiseincool(O) Energiseinheat(B)

Sw4–FanMode

IfSw2=OFF–Heat/cool

FanControlbyHeater(HG) FanControlbyT’stat(HE)

Sw5–AnticycletimerOff 4Minutes

Sw6–OperationManualThermostat ProgrammableThermostat

Sw7–MinimumRun2minutes 6Minutes

Sw8–ProgramType

IfSw6=ON–Programmable

CommercialProgram ResidentialProgram

Sw8–Setpoints

IfSw6=OFF–Manual

SingleSetpoint TwoSetpoints

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Typicaldrawingshavebeenprovidedonpage12ofthismanualthatwill

assistwiththeselectionofthecorrectpositionsforthesefunctionswitches.

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Switch1–RelayAssignment

TheSMT‐770isfittedwith5relayscapableofswitchingupto24VAC@1Amp.Switch1

setsthefunctionoftheserelaysaseither3fanspeedswith1heatand1cooloperation

orsinglefanspeedwith2heatand2cool,ineitherHP(heatpump/reversecycle)or

HC(heatwithaddoncool)mode.

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Switch2–EquipmentType.

Bothheatwithaddoncoolorheatpumptypesofsystemscanbecontrolledbythe

SMT‐770.

HeatCoolSystemusesthe“W”terminal(s)onlyforheatingandthe“Y”terminal(s)only

forcooling.

HeatPumpsystemsusethe“Y”terminal(s)forBOTHheatingandcooling(the

compressor).The“W1”terminaltocontrolthereversingvalvewhichdetermines

heatingorcoolingmode.

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Switch3–EquipmentStages.

WhenitisnecessarytocontrolasinglestageA/Csystemfittedwithauxiliaryheating

elements,turnSw3OFFtherebyselectingsinglestagemode.Heatingelements

controlledbytheW2outputarenowassignedasstage2heat.

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Switch4–ReversingValveorFanMode

WhentheSMT‐770issetforHeatPumpmode(Sw2ison)thenthisswitchsetsthe

reversingvalvelogic(O/B).WhentheSMT‐770issetforHeatCoolmode(Sw2isoff)

thenthisswitchsetsthemodefortheHeaterfanlogic(HGorHEmode).

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Switch5–AntiCycleTimer

ToprotectsomeA/Csystemsitispreferredthatundernocircumstancesshouldthe

compressorstartwithin4minutesofitswitchingoff.

Note:whenpowerisfirstappliedtotheSMT‐770it“assumes”thatthecompressorhas

juststoppedandappliesthisanticycledelaytimebeforestarting.

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Switch6–ThermostatOperation

Tosuitthevaryingrequirementsoftheuser,theSMT‐770canbesetasa

programmablethermostatusingthetimeclocktoautomaticallycontrolthebuilding

temperaturetoaprogrammedtemperatureprofileortotheverysimpletooperate

manualmodewheretheuserturnsthethermostatonoroffandadjuststhe

temperaturesetpointmanually.

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Switch7–MinimumRunTime.

ToconserveenergyandprotecttheA/Csystemitisrecommendedtolimitthenumber

oftimestheheatingand/orcoolingsystemcanrunin1hour.Thisswitchsetsthe

minimumheatingandcoolingequipmenttoaminimumruntimeof2or6minutes.

Oncetheheatingorcoolinghasstarteditmustrunforthisminimumsettime.TheLCD

willflashtheword“Heating”or“Cooling”wheneverthistimerisineffect.

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Switch8–ThermostatControlLogic.

Thisswitchalsohastwofunctionsbasedonthepositionofswitch6.Whenthe

SMT‐770issetasaprogrammablethermostat,switch8determineswhethera

commercialprogramorresidentialprogramisselected.Whenswitch6hasthe

SMT‐770usedasanonprogrammablethermostat,thisswitchsetssinglesetpoint

mode(imitatingasimplemechanicalthermostat)orwhetheraseparateheatingand

coolingsetpointcanbeselectedbytheuser.Twosetpointmodealsopermitstheuser

toselectaseparatedayandnightsetpointifrequired.

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TTTerminalFunctions

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TheSMT‐770isfittedwithasetofterminalsmarked“TT”.Detailsonthefunctionsthat

the“TT”terminalsperformisprovidedbelow.Seetheadvancedinstallersettingmenu

onpage19ofthismanualforsettingthefunctionofthissetofterminals.Thewiring

usedinthefollowingexamplesarenotpolaritydependentanddonotnormallyrequire

screenedcable.

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Note:TheSMT‐770canusemultiplesensorsifrequiredforaveraging.

Drawingsshowingthesevariousconfigurationsareshownonpage37ofthis

manual.

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OutsideAirSensorWiring

Set“TT=OA”intheadvancedinstallermenu.

TheSMT‐770candisplaytheoutsideairtemperatureif

desired.Someadvancedcontrolfunctionssuchashigh

andlowbalancepointsrelyonthissensortobefitted

forcorrectoperation.Usingasinglepairofwires

connectthe“TT”terminalsintheSMT‐770tothetwoterminalsintheoutsideair

temperaturesensor.(Seefigure1).Iftheoutsideairsensorfailstwodasheswillbe

shownontheLCDwheretheoutsideairtemperaturewouldnormallybedisplayedto

alertyouoftheproblem.

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RemoteAirTemperatureSensorWiring.

Set“TT=RS”intheadvancedinstallermenu.(Default)

Whenyouwishtomeasurethetemperaturefroma

locationdistantfromtheSMT‐770,simplyconnecta

remotetemperaturesensortothe“TT”terminalsin

theSMT‐770.ThiswillautomaticallydisablethesensorfittedtotheSMT‐770anduse

theremotetemperaturesensor(s)tocontroltheroomtemperature(Seefigure1

above).Shouldyouwish,youcaneasilyswitchtheremotetemperaturesensoronand

offtherebyswitchingtemperaturesensinglocationsbetweentheremotetemperature

sensorandtheSMT‐770temperaturesensorwhenrequired.Simplyfitaninlineswitch

inthesensorwiringororderSmartTemppartnumberRS‐01Ssensor.(SeeFigure2.)

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Figure1

Figure2

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Smart temp SMT-200 Manuel utilisateur

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Smart temp Inspire Touch Manuel utilisateur

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