Danfoss ECL Comfort 210 / 296 / 310, A266 Operating instructions

OperatingGuide

ECLComfort210/296/310,applicationA266

1.0TableofContents

1.0TableofContents...............................................1

1.1Importantsafetyandproductinformation.....................2

2.0Installation........................................................6

2.1Beforeyoustart.....................................................6

2.2Identifyingthesystemtype......................................14

2.3Mounting...........................................................15

2.4Placingthetemperaturesensors................................19

2.5Electricalconnections.............................................21

2.6InsertingtheECLApplicationKey..............................29

2.7Checklist............................................................35

2.8Navigation,ECLApplicationKeyA266.........................36

3.0Dailyuse.........................................................56

3.1Howtonavigate...................................................56

3.2Understandingthecontrollerdisplay..........................57

3.3Ageneraloverview:Whatdothesymbolsmean?...........60

3.4Monitoringtemperaturesandsystem

components........................................................61

3.5Inﬂuenceoverview................................................62

3.6Manualcontrol.....................................................63

3.7Schedule............................................................64

4.0Settingsoverview............................................65

5.0Settings...........................................................68

5.1IntroductiontoSettings..........................................68

5.2Flowtemperature..................................................69

5.3Roomlimit..........................................................72

5.4Returnlimit.........................................................74

5.5Flow/powerlimit.................................................80

5.6Optimization........................................................85

5.7Controlparameters................................................92

5.8Application.........................................................99

5.9Heatcut-out......................................................107

5.10Alarm..............................................................110

5.11Alarmoverview..................................................116

5.12Anti-bacteria......................................................117

6.0Commoncontrollersettings............................119

6.1Introductionto‘Commoncontrollersettings’..............119

6.2Time&Date.......................................................120

6.3Holiday............................................................121

6.4Inputoverview...................................................123

6.5Log.................................................................124

6.6Outputoverride..................................................125

6.7Keyfunctions.....................................................126

6.8System.............................................................128

7.0Miscellaneous................................................135

7.1ECA30/31setupprocedures.................................135

7.2Overridefunction................................................143

7.3Severalcontrollersinthesamesystem......................146

7.4Frequentlyaskedquestions....................................149

7.5Deﬁnitions........................................................152

7.6Type(ID6001),overview.......................................155

7.7ParameterIDoverview..........................................156

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1.1Importantsafetyandproductinformation

1.1.1Importantsafetyandproductinformation

ThisInstallationGuideisassociatedwithECLApplicationKeyA266

(ordercodeno.087H3800).

TheECLApplicationKeyA266contains4subtypes,allapplicablein

ECLComfort210and310:

•A266.1:HeatingandDHW

•A266.2:HeatingandadvancedDHW

•A266.9:HeatinginclusivepressuremonitoringandDHW.

Returntemperaturemonitoringonheatingside.

•A266.10:HeatingandDHW.Returntemperaturemonitoringon

heatingside.

SeetheMountingGuide(deliveredwiththeapplicationkey)for

applicationexamplesandelectricalconnections.

ThedescribedfunctionsarerealizedinECLComfort210forbasic

solutionsandinECLComfort310foradvancedsolutions,for

exampleM-bus,ModbusandEthernet(Internet)communication.

TheapplicationKeyA266complieswithECLComfort210and

ECLComfort310controllersasofsoftwareversion1.11(visible

atstart-upofthecontrollerandin'Commoncontrollersettings'

in'System').

UptotwoRemoteControlUnits,ECA30orECA31,canbe

connectedandthebuilt-inroomtemperaturesensorcanbe

utilized.

TogetherwiththeECLComfort310,theadditionalInternalI/O

moduleECA32(ordercodeno.087H3202)canbeusedforextra

datacommunicationtoSCADA:

•Temperature,Pt1000(default)

•0-10voltsignals

Theset-upofinputtypecanbedonebymeansoftheDanfoss

Software"ECLTool".

Navigation:Danfoss.com>Products&Solutions>DistrictHeating

andCooling>Tools&Software>ECLTool.

TheURLis:http://heating.danfoss.com/download

TheInternalI/OmoduleECA32isplacedinthebasepartforECL

Comfort310.

ECLComfort210isavailableas:

•ECLComfort210,230volta.c.(087H3020)

•ECLComfort210B,230volta.c.(087H3030)

ECLComfort310isavailableas:

•ECLComfort310,230volta.c.(087H3040)

•ECLComfort310B,230volta.c.(087H3050)

•ECLComfort310,24volta.c.(087H3044)

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OperatingGuideECLComfort210/296/310,applicationA266

TheB-typeshavenodisplayanddial.TheB-typesareoperatedby

meansoftheRemoteControlunitECA30/31:

•ECA30(087H3200)

•ECA31(087H3201)

BasepartsforECLComfort:

•forECLComfort210,230volt(087H3220)

•forECLComfort310,230voltand24volt(087H3230)

AdditionaldocumentationforECLComfort210and310,modules

andaccessoriesisavailableonhttp://heating.danfoss.com/.

DocumentationforECLPortal:Seehttp://ecl.portal.danfoss.com.

Applicationkeysmightbereleasedbeforealldisplaytextsare

translated.InthiscasethetextisinEnglish.

Automaticupdateofcontrollersoftware(ﬁrmware):

Thesoftwareofthecontrollerisupdatedautomaticallywhenthekey

isinserted(asofcontrollerversion1.11(ECL210/310)andversion

1.58(ECL296)).Thefollowinganimationwillbeshownwhenthe

softwareisbeingupdated:

Progressbar

Duringupdate:

•DonotremovetheKEY

Ifthekeyisremovedbeforethehour-glassisshown,youhave

tostartafresh.

•Donotdisconnectthepower

Ifthepowerisinterruptedwhenthehour-glassisshown,the

controllerwillnotwork.

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OperatingGuideECLComfort210/296/310,applicationA266

SafetyNote

Toavoidinjuryofpersonsanddamagestothedevice,itisabsolutely

necessarytoreadandobservetheseinstructionscarefully.

Necessaryassembly,start-up,andmaintenanceworkmustbe

performedbyqualiﬁedandauthorizedpersonnelonly.

Locallegislationsmustberespected.Thiscomprisesalsocable

dimensionsandtypeofisolation(doubleisolatedat230V).

AfusefortheECLComfortinstallationismax.10Atypically.

TheambienttemperaturerangesforECLComfortinoperationare:

ECLComfort210/310:0-55°C

ECLComfort296:0-45°C.

Exceedingthetemperaturerangecanresultinmalfunctions.

Installationmustbeavoidedifthereisariskforcondensation(dew).

Thewarningsignisusedtoemphasizespecialconditionsthatshould

betakenintoconsideration.

Thissymbolindicatesthatthisparticularpieceofinformationshould

bereadwithspecialattention.

AsthisOperatingGuidecoversseveralsystemtypes,specialsystem

settingswillbemarkedwithasystemtype.Allsystemtypesareshown

inthechapter:'Identifyingyoursystemtype'.

°C(degreesCelsius)isameasuredtemperaturevaluewhereasK

(Kelvin)oftenisusedfortemperaturedifferences.

TheIDno.isuniquefortheselectedparameter.

ExampleFirstdigitSeconddigitLastthreedigits

1117411174

-

Circuit1

Parameterno.

12174

1

2

174

-

Circuit2

Parameterno.

IfanIDdescriptionismentionedmorethanonce,itmeansthatthere

arespecialsettingsforoneormoresystemtypes.Itwillbemarked

withthesystemtypeinquestion(e.g.12174-A266.9).

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OperatingGuideECLComfort210/296/310,applicationA266

ParametersindicatedwithanIDno.like"1x607"meanauniversal

parameter.

xstandsforcircuit/parametergroup.

DisposalNote

Thisproductshouldbedismantledanditscomponents

sorted,ifpossible,invariousgroupsbeforerecycling

ordisposal.

Alwaysfollowthelocaldisposalregulations.

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OperatingGuideECLComfort210/296/310,applicationA266

2.0Installation

2.1Beforeyoustart

TheECLApplicationkeyA266contains4subtypes,A266.1,

A266.2,A266.9andA266.10whicharealmostidentical.

TheapplicationA266.1isveryﬂexible.Thesearethebasic

principles:

Heating(circuit1):

Typically,theﬂowtemperatureisadjustedaccordingtoyour

requirements.Theﬂowtemperaturesensor(S3)isthemost

importantsensor.ThedesiredﬂowtemperatureatS3iscalculated

intheECLcontroller,basedontheoutdoortemperature(S1)and

thedesiredroomtemperature.Thelowertheoutdoortemperature,

thehigherthedesiredﬂowtemperature.

Bymeansofaweekschedule,theheatingcircuitcanbein‘Comfort’

or‘Saving’mode(twovaluesforthedesiredroomtemperature).

InSavingmodetheheatingcanbereducedorswitchedofftotally.

Themotorizedcontrolvalve(M2)isopenedgraduallywhenthe

ﬂowtemperatureislowerthanthedesiredﬂowtemperatureand

viceversa.

Thereturntemperature(S5)canbelimited,forexamplenottobe

toohigh.Ifso,thedesiredﬂowtemperatureatS3canbeadjusted

(typicallytoalowervalue),thusresultinginagradualclosingof

themotorizedcontrolvalve.Furthermore,thereturntemperature

limitationcanbedependentontheoutdoortemperature.

Typically,thelowertheoutdoortemperature,thehigherthe

acceptedreturntemperature.

Inboiler-basedheatingsupplythereturntemperatureshouldnot

betoolow(sameadjustmentprocedureasabove).

Ifthemeasuredroomtemperaturedoesnotequalthedesired

roomtemperature,thedesiredﬂowtemperaturecanbeadjusted.

Thecirculationpump,P2,isONatheatdemandoratfrost

protection.

TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis

higherthanaselectablevalue.

Aconnectedﬂoworenergymeterbasedonpulses(S7)canlimit

theﬂoworenergytoasetmaximumvalue.Furthermorethe

limitationcanbeinrelationtotheoutdoortemperature.Typically,

thelowertheoutdoortemperature,thehighertheacceptedﬂow/

power.WhentheA266.1isusedinanECLComfort310theﬂow/

energysignalcanalternativelycomeasanM-bussignal.

Thefrostprotectionmodemaintainsaselectableﬂowtemperature,

forexample10°C.

DHW(circuit2):

IfthemeasuredDHWtemperature(S4)islowerthanthedesired

DHWtemperature,themotorizedcontrolvalve(M1)isopened

graduallyandviceversa.

Thereturntemperature(S6)canbelimitedtoaﬁxedvalue.

Bymeansofaweekschedule,theDHWcircuitcanbein‘Comfort’

or‘Saving’mode(twovaluesforthedesiredDHWtemperature).

TypicalA266.1application:

Theshowndiagramisafundamentalandsimpliﬁedexampleanddoes

notcontainallcomponentsthatarenecessaryinasystem.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:

ECL210/310

ElectroniccontrollerECLComfort210or310

S1

Outdoortemperaturesensor

S2

(Optional)Roomtemperaturesensor

S3

Flowtemperaturesensor,circuit1

S4

DHWﬂowtemperaturesensor,circuit2

S5

(Optional)Returntemperaturesensor,circuit1

S6

(Optional)DHWreturntemperaturesensor,circuit2

S7

(Optional)Flow/energymeter(pulsesignal)

P1

Circulationpump,DHW,circuit2

P2

Circulationpump,heating,circuit1

M1

Motorizedcontrolvalve(3-pointcontrolled),circuit2

Alternative:Thermoactuator(DanfosstypeABV)

M2

Motorizedcontrolvalve(3-pointcontrolled),circuit1

Alternative:Thermoactuator(DanfosstypeABV)

A1

Alarm

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OperatingGuideECLComfort210/296/310,applicationA266

Ananti-bacteriafunctionisavailableforactivationonselected

daysoftheweek.

IfthedesiredDHWtemperaturecannotbereached,theheating

circuitcanbeclosedgraduallytoallowmoreenergytotheDHW

circuit.

A266.1,ingeneral:

AlarmA1(=relay4)canbeactivatediftheactualﬂowtemperature

differsfromthedesiredﬂowtemperature.

HolidayprogramsarepresentforHeatingandDHW.Besides,a

holidayprogramispresentfortheentirecontroller.

WhenthesubtypeA266.1hasbeenuploaded,theECLComfort

controllerstartsinmanualmode.Thiscanbeusedforcheckingthe

controlledcomponentsforcorrectfunctionality.

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OperatingGuideECLComfort210/296/310,applicationA266

TheapplicationA266.2isveryﬂexible.Thesearethebasic

principles:

Heating(circuit1):

Typically,theﬂowtemperatureisadjustedaccordingtoyour

requirements.Theﬂowtemperaturesensor(S3)isthemost

importantsensor.ThedesiredﬂowtemperatureatS3iscalculated

intheECLcontroller,basedontheoutdoortemperature(S1)and

thedesiredroomtemperature.Thelowertheoutdoortemperature,

thehigherthedesiredﬂowtemperature.

Bymeansofaweekschedule,theheatingcircuitcanbein‘Comfort’

or‘Saving’mode(twovaluesforthedesiredroomtemperature).

InSavingmodetheheatingcanbereducedorswitchedofftotally.

Themotorizedcontrolvalve(M2)isopenedgraduallywhenthe

ﬂowtemperatureislowerthanthedesiredﬂowtemperatureand

viceversa.

Thereturntemperature(S5)canbelimited,forexamplenottobe

toohigh.Ifso,thedesiredﬂowtemperatureatS3canbeadjusted

(typicallytoalowervalue),thusresultinginagradualclosingof

themotorizedcontrolvalve.Furthermore,thereturntemperature

limitationcanbedependentontheoutdoortemperature.

Typically,thelowertheoutdoortemperature,thehigherthe

acceptedreturntemperature.

Inboiler-basedheatingsupplythereturntemperatureshouldnot

betoolow(sameadjustmentprocedureasabove).

Ifthemeasuredroomtemperaturedoesnotequalthedesired

roomtemperature,thedesiredﬂowtemperaturecanbeadjusted.

Thecirculationpump,P2,isONatheatdemandoratfrost

protection.

TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis

higherthanaselectablevalue.

Aconnectedﬂoworenergymeterbasedonpulses(S7)canlimit

theﬂoworenergytoasetmaximumvalue.Furthermorethe

limitationcanbeinrelationtotheoutdoortemperature.Typically,

thelowertheoutdoortemperature,thehighertheacceptedﬂow/

power.WhentheA266.2isusedinanECLComfort310theﬂow/

energysignalcanalternativelycomeasanM-bussignal.

Thefrostprotectionmodemaintainsaselectableﬂowtemperature,

forexample10°C.

DHW(circuit2):

TheDHWtemperatureatS4ismaintainedat‘Comfort’levelata

DHWdraw-off(DHWtapping)(theﬂowswitch(S8)isactivated).

IfthemeasuredDHWtemperature(S4)islowerthanthedesired

DHWtemperature,themotorizedcontrolvalve(M1)isopened

graduallyandviceversa.

TheDHWtemperaturecontrolisinrelationtoactualsupply

temperature(S6).Inordertocompensateforthereactiontime,the

motorizedcontrolvalvecanbepre-activatedatthestartofaDHW

draw-off(DHWtapping).Anidletemperaturecanbemaintainedat

eitherS6orS4whenthereisnodraw-off(DHWtapping).

Thereturntemperature(S5)canbelimitedtoaﬁxedvalue.

Bymeansofaweekschedule,theDHWcircuitcanbein‘Comfort’

or‘Saving’mode(twovaluesforthedesiredDHWtemperature).

TypicalA266.2application:

Theshowndiagramisafundamentalandsimpliﬁedexampleanddoes

notcontainallcomponentsthatarenecessaryinasystem.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:

ECL210/310

ElectroniccontrollerECLComfort210or310

S1

Outdoortemperaturesensor

S2

(Optional)Roomtemperaturesensor

S3

Flowtemperaturesensor,circuit1

S4

DHWﬂowtemperaturesensor,circuit2

S5

(Optional)Returntemperaturesensor,circuit1,circuit

2orbothcircuits

S6

(Optional)Supplytemperaturesensor,circuit2

S7

(Optional)Flow/energymeter(pulsesignal)

S8

Flowswitch,DHWdraw-off,circuit2

P1

Circulationpump,DHW,circuit2

P2

Circulationpump,heating,circuit1

M1

Motorizedcontrolvalve(3-pointcontrolled),circuit2

Alternative:Thermoactuator(DanfosstypeABV

M2

Motorizedcontrolvalve(3-pointcontrolled),circuit1

Alternative:Thermoactuator(DanfosstypeABV

A1

Alarm

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VI.KT.X4.02

OperatingGuideECLComfort210/296/310,applicationA266

Ananti-bacteriafunctionisavailableforactivationonselected

daysoftheweek.

IfthedesiredDHWtemperaturecannotbereached,theheating

circuitcanbeclosedgraduallytoallowmoreenergytotheDHW

circuit.

A266.2,ingeneral:

AlarmA1(=relay4)canbeactivated:

•iftheactualﬂowtemperaturediffersfromthedesiredﬂow

temperature

•ifthetemperatureatS3exceedsanalarmvalue

HolidayprogramsarepresentforHeatingandDHW.Besides,a

holidayprogramispresentfortheentirecontroller.

IfthetemperatureatS3exceedsthealarmvalue'Max.ﬂowT',the

circulationpumpP2isswitchedOFFafterelapseofthe'Delay'.

P2isswitchedONagainwhenthetemperatureatS3getsbelow

alarmvalue.

WhenthesubtypeA266.2hasbeenuploaded,theECLComfort

controllerstartsinmanualmode.Thiscanbeusedforcheckingthe

controlledcomponentsforcorrectfunctionality.

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©Danfoss|2018.01|9

OperatingGuideECLComfort210/296/310,applicationA266

TheapplicationA266.9isveryﬂexible.Thesearethebasic

principles:

Heating(circuit1):

Typically,theﬂowtemperatureisadjustedaccordingtoyour

requirements.Theﬂowtemperaturesensor(S3)isthemost

importantsensor.ThedesiredﬂowtemperatureatS3iscalculated

intheECLcontroller,basedontheoutdoortemperature(S1)and

thedesiredroomtemperature.Thelowertheoutdoortemperature,

thehigherthedesiredﬂowtemperature.

Bymeansofaweekschedule,theheatingcircuitcanbein‘Comfort’

or‘Saving’mode(twovaluesforthedesiredroomtemperature).

InSavingmodetheheatingcanbereducedorswitchedofftotally.

Themotorizedcontrolvalve(M2)isopenedgraduallywhenthe

ﬂowtemperatureislowerthanthedesiredﬂowtemperatureand

viceversa.

Thereturntemperature(S5)canbelimited,forexamplenottobe

toohigh.Ifso,thedesiredﬂowtemperatureatS3canbeadjusted

(typicallytoalowervalue),thusresultinginagradualclosingof

themotorizedcontrolvalve.Furthermore,thereturntemperature

limitationcanbedependentontheoutdoortemperature.

Typically,thelowertheoutdoortemperature,thehigherthe

acceptedreturntemperature.

Inboiler-basedheatingsupplythereturntemperatureshouldnot

betoolow(sameadjustmentprocedureasabove).

Thecirculationpump,P2,isONatheatdemandoratfrost

protection.

TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis

higherthanaselectablevalue.

Thesecondaryreturntemperature(S2)isusedformonitoring.The

pressuremeasuring(S7)isusedtoactivateanalarmiftheactual

pressureishigherorlowerthanthechosensettings.

WhentheA266.9isusedinanECLComfort310,aconnected

ﬂoworenergymeterbasedonM-bussignalcanlimittheﬂowor

energytoasetmaximumvalue.Furthermorethelimitationcanbe

inrelationtotheoutdoortemperature.Typically,thelowerthe

outdoortemperature,thehighertheacceptedﬂow/power.

Thefrostprotectionmodemaintainsaselectableﬂowtemperature,

forexample10°C.

DHW(circuit2):

IfthemeasuredDHWtemperature(S4)islowerthanthedesired

DHWtemperature,themotorizedcontrolvalve(M1)isopened

graduallyandviceversa.IfthedesiredDHWtemperaturecannot

bereached,theheatingcircuitcanbeclosedgraduallytoallow

moreenergytotheDHWcircuit.

ThereturntemperatureS6canmeasure,formonitoringpurpose,

thereturntemperatureonthesecondaryside.Analternative

positionforS6canbeinthereturnontheprimarysideinorderto

limitthereturntemperaturetoaﬁxedvalue.

Bymeansofaweekschedule,theDHWcircuitcanbein‘Comfort’

or‘Saving’mode(twovaluesforthedesiredDHWtemperature).

TypicalA266.9application:

Theshowndiagramisafundamentalandsimpliﬁedexampleanddoes

notcontainallcomponentsthatarenecessaryinasystem.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:

ECL210/310

ElectroniccontrollerECLComfort210or310

S1

Outdoortemperaturesensor

S2

(Optional)Returntemperaturesensor,circuit1,for

monitoring

S3

Flowtemperaturesensor,circuit1

S4

DHWﬂowtemperaturesensor,circuit2

S5

(Optional)Returntemperaturesensor,circuit1

S6

(Optional)Returntemperaturesensor,secondaryside,

circuit2.Alternativeposition:Return,primaryside

S7

(Optional)Pressuretransmitter,circuit1

S8

(Optional)Alarminput

P1

Circulationpump,DHW,circuit2

P2

Circulationpump,heating,circuit1

M1

Motorizedcontrolvalve,circuit2

M2

Motorizedcontrolvalve,circuit1

A1

Alarm

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OperatingGuideECLComfort210/296/310,applicationA266

A266.9,ingeneral:

AlarmA1(=relay4)canbeactivated:

•ifthetemperatureatS3exceedsanalarmvalue

•ifthepressureatS7isnotinsideanacceptablepressurerange

•ifthealarminputS8isactivated

IfthetemperatureatS3exceedsthealarmvalue'Max.ﬂowT',the

circulationpumpP2isswitchedOFFafterelapseofthe'Delay'.

P2isswitchedONagainwhenthetemperatureatS3getsbelow

alarmvalue.

WhenthesubtypeA266.9hasbeenuploaded,theECLComfort

controllerstartsinscheduledmode.

VI.KT.X4.02

©Danfoss|2018.01|11

OperatingGuideECLComfort210/296/310,applicationA266

TheapplicationA266.10isveryﬂexible.Thesearethebasic

principles:

Heating(circuit1):

Typically,theﬂowtemperatureisadjustedaccordingtoyour

requirements.Theﬂowtemperaturesensor(S3)isthemost

importantsensor.ThedesiredﬂowtemperatureatS3iscalculated

intheECLcontroller,basedontheoutdoortemperature(S1)and

thedesiredroomtemperature.Thelowertheoutdoortemperature,

thehigherthedesiredﬂowtemperature.

Bymeansofaweekschedule,theheatingcircuitcanbein‘Comfort’

or‘Saving’mode(twovaluesforthedesiredroomtemperature).

InSavingmodetheheatingcanbereducedorswitchedofftotally.

Themotorizedcontrolvalve(M2)isopenedgraduallywhenthe

ﬂowtemperatureislowerthanthedesiredﬂowtemperatureand

viceversa.

Thereturntemperature(S5)canbelimited,forexamplenottobe

toohigh.Ifso,thedesiredﬂowtemperatureatS3canbeadjusted

(typicallytoalowervalue),thusresultinginagradualclosingof

themotorizedcontrolvalve.Furthermore,thereturntemperature

limitationcanbedependentontheoutdoortemperature.

Typically,thelowertheoutdoortemperature,thehigherthe

acceptedreturntemperature.

Inboiler-basedheatingsupplythereturntemperatureshouldnot

betoolow(sameadjustmentprocedureasabove).

Thecirculationpump,P2,isONatheatdemandoratfrost

protection.

TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis

higherthanaselectablevalue.

Thesecondaryreturntemperature(S2)isusedformonitoring.

Aconnectedﬂoworenergymeterbasedonpulses(S7)canlimitthe

ﬂoworenergytoasetmaximumvalue.Furthermorethelimitation

canbeinrelationtotheoutdoortemperature.Typically,thelower

theoutdoortemperature,thehighertheacceptedﬂow/power.

WhentheA266.10isusedinanECLComfort310theﬂow/energy

signalcanalternativelycomeasanM-bussignal.

Thefrostprotectionmodemaintainsaselectableﬂowtemperature,

forexample10°C.

DHW(circuit2):

IfthemeasuredDHWtemperature(S4)islowerthanthedesired

DHWtemperature,themotorizedcontrolvalve(M1)isopened

graduallyandviceversa.IfthedesiredDHWtemperaturecannot

bereached,theheatingcircuitcanbeclosedgraduallytoallow

moreenergytotheDHWcircuit.

ThereturntemperatureS6canmeasure,formonitoringpurpose,

thereturntemperatureonthesecondaryside.Analternative

positionforS6canbeinthereturnontheprimarysideinorderto

limitthereturntemperaturetoaﬁxedvalue.

Bymeansofaweekschedule,theDHWcircuitcanbein‘Comfort’

or‘Saving’mode(twovaluesforthedesiredDHWtemperature).

TypicalA266.10application:

Theshowndiagramisafundamentalandsimpliﬁedexampleanddoes

notcontainallcomponentsthatarenecessaryinasystem.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:

ECL210/310

ElectroniccontrollerECLComfort210or310

S1

Outdoortemperaturesensor

S2

(Optional)Returntemperaturesensor,circuit1,for

monitoring

S3

Flowtemperaturesensor,circuit1

S4

DHWﬂowtemperaturesensor,circuit2

S5

(Optional)Returntemperaturesensor,circuit1

S6

(Optional)Returntemperaturesensor,secondaryside,

circuit2.Alternativeposition:Return,primaryside

S7

(Optional)Flow/energymeter(pulsesignal)

S8

(Optional)Alarminput

P1

Circulationpump,DHW,circuit2

P2

Circulationpump,heating,circuit1

M1

Motorizedcontrolvalve,circuit2

M2

Motorizedcontrolvalve,circuit1

A1

Alarm

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OperatingGuideECLComfort210/296/310,applicationA266

A266.10,ingeneral:

AlarmA1(=relay4)canbeactivated:

•ifthetemperatureatS3exceedsanalarmvalue

•ifthealarminputS8isactivated

IfthetemperatureatS3exceedsthealarmvalue'Max.ﬂowT',the

circulationpumpP2isswitchedOFFafterelapseofthe'Delay'.

P2isswitchedONagainwhenthetemperatureatS3getsbelow

alarmvalue.

WhenthesubtypeA266.10hasbeenuploaded,theECLComfort

controllerstartsinscheduledmode.

A266,ingeneral:

UptotwoRemoteControlUnits,ECA30/31canbeconnectedto

oneECLcontrollerinordertocontroltheECLcontrollerremotely.

Exerciseofcirculationpumpsandcontrolvalveinperiodswithout

heatingdemandcanbearranged.

AdditionalECLComfortcontrollerscanbeconnectedviatheECL

485businordertoutilizecommonoutdoortemperaturesignal,

timeanddatesignals.TheECLcontrollersintheECL485system

canworkinmaster-slavesystem.

Unusedinputcan,bymeansofanoverrideswitch,beusedto

overridethescheduletoaﬁxed'Comfort'or'Saving'mode.

ModbuscommunicationtoaSCADAsystemcanbeestablished.

TheM-busdata(ECLComfort310)canfurthermorebetransferred

totheModbuscommunication.

AlarmA1(=relay4)canbeactivated:

•ifatemperaturesensororitsconnectiondisconnects/short

circuits.(See:Commoncontrollersettings>System>Raw

inputoverview).

Thecontrollerispre-programmedwithfactorysettingsthatareshown

inthe‘ParameterIDoverview’appendix.

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OperatingGuideECLComfort210/296/310,applicationA266

2.2Identifyingthesystemtype

Sketchyourapplication

TheECLComfortcontrollerseriesisdesignedforawiderange

ofheating,domestichot-water(DHW)andcoolingsystemswith

differentconﬁgurationsandcapacities.Ifyoursystemdiffers

fromthediagramsshownhere,youmaywanttomakeasketch

ofthesystemabouttobeinstalled.Thismakesiteasiertouse

theOperatingGuide,whichwillguideyoustep-by-stepfrom

installationtoﬁnaladjustmentsbeforetheend-usertakesover.

TheECLComfortcontrollerisauniversalcontrollerthatcanbe

usedforvarioussystems.Basedontheshownstandardsystems,

itispossibletoconﬁgureadditionalsystems.Inthischapteryou

ﬁndthemostfrequentlyusedsystems.Ifyoursystemisnotquite

asshownbelow,ﬁndthediagramwhichhasthebestresemblance

withyoursystemandmakeyourowncombinations.

SeetheInstallationGuide(deliveredwiththeapplicationkey)for

applicationtypes/sub-types.

Thecirculationpump(s)inheatingcircuit(s)canbeplacedintheﬂow

aswellasthereturn.Placethepumpaccordingtothemanufacturer’s

speciﬁcation.

14|©Danfoss|2018.01

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OperatingGuideECLComfort210/296/310,applicationA266

2.3Mounting

2.3.1MountingtheECLComfortcontroller

SeetheInstallationGuidewhichisdeliveredtogetherwiththe

ECLComfortcontroller.

Foreasyaccess,youshouldmounttheECLComfortcontrollernear

thesystem.

ECLComfort210/296/310canbemounted

•onawall

•onaDINrail(35mm)

ECLComfort296canbemounted

•inapanelcut-out

ECLComfort210canbemountedinanECLComfort310basepart

(forfutureupgrade).

Screws,PGcableglandsandrawlplugsarenotsupplied.

LockingtheECLComfort210/310controller

InordertofastentheECLComfortcontrollertoitsbasepart,secure

thecontrollerwiththelockingpin.

Topreventinjuriestopersonsorthecontroller,thecontrollerhasto

besecurelylockedintothebase.Forthispurpose,pressthelocking

pinintothebaseuntilaclickisheardandthecontrollernolonger

canberemovedfromthebase.

Ifthecontrollerisnotsecurelylockedintothebasepart,thereisarisk

thatthecontrollerduringoperationcanunlockfromthebaseandthe

basewithterminals(andalsothe230Va.c.connections)areexposed.

Topreventinjuriestopersons,alwaysmakesurethatthecontroller

issecurelylockedintoitsbase.Ifthisisnotthecase,thecontroller

shouldnotbeoperated!

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OperatingGuideECLComfort210/296/310,applicationA266

Theeasywaytolockthecontrollertoitsbaseorunlockitistousea

screwdriveraslever.

Mountingonawall

Mountthebasepartonawallwithasmoothsurface.Establishthe

electricalconnectionsandpositionthecontrollerinthebasepart.

Securethecontrollerwiththelockingpin.

MountingonaDINrail(35mm)

MountthebasepartonaDINrail.Establishtheelectrical

connectionsandpositionthecontrollerinthebasepart.Secure

thecontrollerwiththelockingpin.

DismountingtheECLComfortcontroller

Inordertoremovethecontrollerfromthebasepart,pulloutthe

lockingpinbymeansofascrewdriver.Thecontrollercannowbe

removedfromthebasepart.

Theeasywaytolockthecontrollertoitsbaseorunlockitistousea

screwdriveraslever.

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OperatingGuideECLComfort210/296/310,applicationA266

BeforeremovingtheECLComfortcontrollerfromthebasepart,ensure

thatthesupplyvoltageisdisconnected.

2.3.2MountingtheRemoteControlUnitsECA30/31

Selectoneofthefollowingmethods:

•Mountingonawall,ECA30/31

•Mountinginapanel,ECA30

Screwsandrawlplugsarenotsupplied.

Mountingonawall

MountthebasepartoftheECA30/31onawallwithasmooth

surface.Establishtheelectricalconnections.PlacetheECA30/

31inthebasepart.

Mountinginapanel

MounttheECA30inapanelusingtheECA30framekit(ordercode

no.087H3236).Establishtheelectricalconnections.Securethe

framewiththeclamp.PlacetheECA30inthebasepart.TheECA

30canbeconnectedtoanexternalroomtemperaturesensor.

TheECA31mustnotbemountedinapanelifthehumidity

functionistobeused.

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OperatingGuideECLComfort210/296/310,applicationA266

2.3.3MountingtheinternalI/OmoduleECA32

MountingoftheinternalI/OmoduleECA32

TheECA32module(ordercodeno.087H3202)mustbeinserted

intotheECLComfort310/310Bbasepartforadditionalinputand

outputsignalsinrelevantapplications.

TheconnectionbetweentheECLComfort310/310BandECA32

isa10-pole(2x5)connector.Theconnectionisautomatically

establishedwhentheECLComfort310/310Bisplacedonthe

basepart.

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OperatingGuideECLComfort210/296/310,applicationA266

2.4Placingthetemperaturesensors

2.4.1Placingthetemperaturesensors

Itisimportantthatthesensorsaremountedinthecorrectposition

inyoursystem.

Thetemperaturesensormentionedbelowaresensorsusedforthe

ECLComfort210/296/310serieswhichnotallwillbeneeded

foryourapplication!

Outdoortemperaturesensor(ESMT)

Theoutdoorsensorshouldbemountedonthatsideofthebuilding

whereitislesslikelytobeexposedtodirectsunshine.Itshouldnot

beplacedclosetodoors,windowsorairoutlets.

Flowtemperaturesensor(ESMU,ESM-11orESMC)

Placethesensormax.15cmfromthemixingpoint.Insystems

withheatexchanger,DanfossrecommendsthattheESMU-typeto

beinsertedintotheexchangerﬂowoutlet.

Makesurethatthesurfaceofthepipeiscleanandevenwhere

thesensorismounted.

Returntemperaturesensor(ESMU,ESM-11orESMC)

Thereturntemperaturesensorshouldalwaysbeplacedsothatit

measuresarepresentativereturntemperature.

Roomtemperaturesensor

(ESM-10,ECA30/31RemoteControlUnit)

Placetheroomsensorintheroomwherethetemperatureistobe

controlled.Donotplaceitonoutsidewallsorclosetoradiators,

windowsordoors.

Boilertemperaturesensor(ESMU,ESM-11orESMC)

Placethesensoraccordingtotheboilermanufacturer’s

speciﬁcation.

Airducttemperaturesensor(ESMB-12orESMUtypes)

Placethesensorsothatitmeasuresarepresentativetemperature.

DHWtemperaturesensor(ESMUorESMB-12)

PlacetheDHWtemperaturesensoraccordingtothemanufacturer’s

speciﬁcation.

Slabtemperaturesensor(ESMB-12)

Placethesensorinaprotectiontubeintheslab.

ESM-11:Donotmovethesensorafterithasbeenfastenedinorderto

avoiddamagetothesensorelement.

ESM-11,ESMCandESMB-12:Useheatconductingpasteforquick

measurementofthetemperature.

ESMUandESMB-12:Usingasensorpockettoprotectthesensorwill,

however,resultinaslowertemperaturemeasurement.

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OperatingGuideECLComfort210/296/310,applicationA266

Pt1000temperaturesensor(IEC751B,1000Ω/0°C)

Relationshipbetweentemperatureandohmicvalue:

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OperatingGuideECLComfort210/296/310,applicationA266

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Danfoss ECL Comfort 210 / 296 / 310, A266 Operating instructions

Danfoss ECL Comfort 210 / 296 / 310, A266 Operating instructions

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