Danfoss P370 Operating instructions

OperatingGuide

ECLComfort310,applicationP370

1.0TableofContents

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

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

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

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

2.2Identifyingthesystemtype......................................16

2.3Mounting...........................................................17

2.4Placingthetemperaturesensors................................21

2.5Electricalconnections.............................................23

2.6InsertingtheECLApplicationKey..............................37

2.7Checklist............................................................44

2.8Navigation,ECLApplicationKeyP370.........................45

3.0Dailyuse.........................................................60

3.1Howtonavigate...................................................60

3.2Understandingthecontrollerdisplay..........................61

3.3Ageneraloverview:Whatdothesymbolsmean?...........66

3.4Monitoringtemperaturesandsystem

components........................................................67

3.5Inﬂuenceoverview................................................68

3.6Manualcontrol.....................................................69

3.7Schedule............................................................70

4.0Settingsoverview............................................71

5.0Settings...........................................................74

5.1IntroductiontoSettings..........................................74

5.2Flowtemperature..................................................75

5.3Returnlimit.........................................................80

5.4Flow/powerlimit.................................................86

5.5Optimization........................................................90

5.6Controlparameters................................................97

5.7Pumpcontrol.....................................................103

5.8Reﬁllwater........................................................106

5.9Application.......................................................113

5.10Heatcut-out......................................................120

5.11Alarm..............................................................123

5.12Alarmoverview..................................................134

5.13Anti-bacteria......................................................135

5.14Watermeter......................................................137

6.0Commoncontrollersettings............................138

6.1Introductionto‘Commoncontrollersettings’..............138

6.2Time&Date.......................................................139

6.3Settings............................................................140

6.4Scheduleoutput.................................................141

6.5Holiday............................................................142

6.6Inputoverview...................................................144

6.7Log.................................................................145

6.8Outputoverride..................................................146

6.9Alarm..............................................................147

6.10Keyfunctions.....................................................148

6.11System.............................................................150

7.0Miscellaneous................................................157

7.1ECA30/31setupprocedures.................................157

7.2Overridefunction................................................165

7.3Severalcontrollersinthesamesystem......................168

7.4Frequentlyaskedquestions....................................171

7.5Deﬁnitions........................................................175

7.6Type(ID6001),overview.......................................179

7.7Automatic/manualupdateofﬁrmware.....................180

7.8ParameterIDoverview..........................................181

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1.1Importantsafetyandproductinformation

1.1.1Importantsafetyandproductinformation

ThisOperatingGuideisassociatedwithECLApplicationKeyP370

(ordercodeno.087H3838).

TheECLApplicationKeyP370contains3subtypes,allapplicablein

ECLComfort310:

•P370.1:2xHeatinginclusivepressureandreturntemperature

monitoringonheatingsides.

1xDHWinclusivereturntemperaturelimitation/monitoring.

Monitoringofinstallation'ssupplyandreturnpressures.

•P370.11:1xHeatinginclusivepressureandreturntemperature

monitoringonheatingsides.

1xdirectDHWinclusivereturntemperaturelimitation/

monitoring.

ThesupplytemperatureS2candeterminethedesiredﬂow

temperature.

ThereﬁllpumpsP4andP7areoperatedalternately.The

alternationtimecanbesetasseveraldays.

Asolutionwithasinglereﬁllpumpcanalsobeselected.

•P370.12:2xHeatinginclusivepressureandreturntemperature

monitoringonheatingsides.

ThereﬁllvalvesV1andV2areforeachheatingcircuitandP4

pumpiscommon.

M1andM2canbecontrolledwithparalleloutput3-pointor

analogsignalfromECA32.

Asolutionwithasinglereﬁllpumpcanalsobeselected.

SeetheInstallationGuide(deliveredwiththeapplicationkey)for

applicationexamplesandelectricalconnections.

ThedescribedfunctionsarerealizedinECLComfort310which

includesM-bus,ModbusandEthernet(Internet)communication.

TheapplicationKeyP370complieswithECLComfort310

controllersasofsoftwareversion1.11(visibleatstart-upofthe

controllerandin'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>Serviceandsupport>Downloads>

Tools>Heating>ECLTool.

TheURLis:

https://www.danfoss.com/en/service-and-support/downloads/

TheInternalI/OmoduleECA32isplacedinthebasepartforECL

Comfort310.

ECLComfort310isavailableas:

•ECLComfort310,230volta.c.(087H3040)

•ECLComfort310B,230volta.c.(087H3050)

•ECLComfort310,24volta.c.(087H3044)

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OperatingGuideECLComfort310,applicationP370

TheB-typeshavenodisplayanddial.TheB-typesareoperatedby

meansoftheRemoteControlunitECA30/31:

•ECA30(087H3200)

•ECA31(087H3201)

BasepartforECLComfort310:

•forECLComfort310,230voltand24volt(087H3230)

AdditionaldocumentationforECLComfort310,modulesand

accessoriesisavailableonhttp://danfoss.com/.

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

SafetyNote

Toavoidinjuryofpersonsanddamagestothedevice,itisabsolutely

necessarytoreadandobservetheseinstructionscarefully.

Necessaryassembly,start-up,andmaintenanceworkmustbe

performedbyqualiﬁedandauthorizedpersonnelonly.

Locallegislationsmustberespected.Thiscomprisesalsocable

dimensionsandtypeofisolation(doubleisolatedat230V).

AfusefortheECLComfort296/210/310installationismax.

10Atypically.

AfusefortheECLComfort120installationismax.6A.

TheambienttemperaturerangesforECLComfortinoperationare:

ECLComfort120:–5–50°C

ECLComfort210/310:0–50°C

ECLComfort296:0-45°C.

Exceedingthetemperaturerangecanresultinmalfunctions.

Installationmustbeavoidedifthereisariskforcondensation(dew).

Thewarningsignisusedtoemphasizespecialconditionsthatshould

betakenintoconsideration.

Applicationkeysmightbereleasedbeforealldisplaytextsare

translated.InthiscasethetextisinEnglish.

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OperatingGuideECLComfort310,applicationP370

Automaticupdateofcontrollersoftware(ﬁrmware):

Thesoftwareofthecontrollerisupdatedautomaticallywhenthekey

isinserted:

•ECL210/310,asofcontrollerversion1.11

•ECL296,asofcontrollerversion1.58

Thefollowinganimationwillbeshownwhenthesoftwareisbeing

updated:

Progressbar

Duringupdate:

•DonotremovetheKEY

Ifthekeyisremovedbeforethehour-glassisshown,youhave

tostartafresh.

•Donotdisconnectthepower

Ifthepowerisinterruptedwhenthehour-glassisshown,the

controllerwillnotwork.

•Manualupdateofcontrollersoftware(ﬁrmware):

Seethesection"Automatic/manualupdateofﬁrmware"

Thissymbolindicatesthatthisparticularpieceofinformationshould

bereadwithspecialattention.

AsthisOperatingGuidecoversseveralsystemtypes,specialsystem

settingswillbemarkedwithasystemtype.Allsystemtypesareshown

inthechapter:'Identifyingyoursystemtype'.

°C(degreesCelsius)isameasuredtemperaturevaluewhereasK

(Kelvin)oftenisusedfortemperaturedifferences.

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OperatingGuideECLComfort310,applicationP370

TheIDno.isuniquefortheselectedparameter.

ExampleFirstdigitSeconddigitLastthreedigits

1117411174

-Circuit1Parameterno.

1217412174

-Circuit2Parameterno.

IfanIDdescriptionismentionedmorethanonce,itmeansthatthere

arespecialsettingsforoneormoresystemtypes.Itwillbemarked

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

ParametersindicatedwithanIDno.like"1x607"meanauniversal

parameter.

xstandsforcircuit/parametergroup.

DisposalNote

Thissymbolontheproductindicatesthatitmaynot

bedisposedofashouseholdwaste.

Itmustbehandedovertotheapplicabletake-back

schemefortherecyclingofelectricalandelectronic

equipment.

•Disposeoftheproductthroughchannelsprovided

forthispurpose.

•Complywithalllocalandcurrentlyapplicablelaws

andregulations.

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OperatingGuideECLComfort310,applicationP370

2.0Installation

2.1Beforeyoustart

Theapplications(subtypes)intheP370applicationkeyaretobe

usedincombinationwiththeLeanheatMonitor.However,some

applicationshaveextrafunctionswhicharedescribedseparately.

TheECLapplicationkeyP370containsof3subtypes:P370.1,

P370.11andP370.12.

ApplicationP370.1ingeneral:

Thisapplicationissupposedtocontroltwoheatingcircuitsanda

directpreparedDHW.Allcircuitsareseparatewithindividualhex.

TwodigitalinputsS8andS15canbeusedforP2andP3alarm

inputs;inputsaremonitoredonlywhenpumpsareactive.

R4canbeoperatedviainternalschedule.

A01,A02andA03(outputsonECA32)areinparallelcontrolling

M1,M2andM3.Either3-pointoranalogoutputarepossibleas

controlsignals.

S7andS14areusedfor0-10pressureinputsandlogged.Input

scalingisenabled.Alarmloworhighvaluecanbemadeforeach

input.

Thecirculationpump(P2,P3)isONatheatdemandoratfrost

protection.

ThealarmoutputA1ispresentontheseoutputs:

ALARMA1=relay4

SeetheInstallationGuide(deliveredwiththeapplicationkey)for

applicationexamplesandelectricalconnections.

AlarmA1(=relay4)canbeactivatedif:

•Theactualﬂowtemperaturediffersfromthedesiredﬂow

temperature.

•Ifatemperaturesensororitsconnectiondisconnects/short

circuits.(See:Commoncontrollersettings>System>Raw

inputoverview).

ModbuscommunicationtoaSCADAsystemcanbeestablished.

UptotwoRemoteControlUnits,ECA30/31canbeconnectedto

oneECLcontrollerinordertocontroltheECLcontrollerremotely.

AdditionalECLComfortcontrollerscanbeconnectedviatheECL

485businordertoutilizecommonoutdoortemperaturesignal,

timeanddatesignals.

TheECLcontrollersintheECL485systemcanworkina

master-slavesystem.

Unusedinputscan,bymeansofanoverrideswitchorrelaycontact,

beusedforoverridingthescheduletoaﬁxed'Comfort','Saving',

'Frostprotection'or'Constanttemperature'mode.

P370.1:

Theshowndiagramisafundamentalandsimpliﬁedexampleand

doesnotcontainallcomponentsthatarenecessaryinasystem.The

numbersincirclesrefertothecircuitnumbers.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:P370.1,sensorsandinputs

ECL310ElectroniccontrollerECLComfort310

S1Outdoortemperaturesensor

S2Returntemperaturesensor,monitoring,circuit2

S3(Mandatory)Flowtemperaturesensor,circuit1

S4(Mandatory)DHWtemperaturesensor,circuit3

S5Returntemperaturesensor,circuit1

S6Returntemperaturesensor,circuit3

S7Pressuresignal,circuit1

S8AlarminputP2

S9(Mandatory)Flowtemperaturesensor,circuit2

S10Returntemperaturesensor,monitoring,circuit2

(S11)Supplyﬂowpressuresignal

(S12)Supplyreturnpressuresignal

(S13)Returntemperaturesensor,circuit2

(S14)Pressuresignal,circuit2

(S15)AlarminputP3

(S16)Alarminput

Listofcomponents:P370.1,pumpsandactuators

P1DHWcirculationpump,circuit3

P2Heatingcirculationpump,circuit1

P3Heatingcirculationpump,circuit2

M1Motorizedcontrolvalve,circuit3

M2Motorizedcontrolvalve,circuit1

M3Motorizedcontrolvalve,circuit2

A1Alarm

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OperatingGuideECLComfort310,applicationP370

ApplicationP370.1ingeneral(continued):

HolidayprogramsarepresentforHeatingandDHWcircuits.

Besides,aholidayprogramispresentfortheentirecontroller.

SCADAoverrideispossiblewithanoffsetorabsolutevalue.

Summerandwinterdatesforcut-offareimplementedinthe

standardset-up.

TheapplicationP370requirestheinternalI/OmoduleECA32.

S11andS12measuresupplyﬂowandreturnpressuresfor

monitoring.

S13measuresreturntemperature.

S14measurespressure,circuit2

S15andS16arealarminputs.

Schedulein"Commoncontroller"isconnectedtotheoutputO1

andcanbeusedforvariousissues.

Heating(circuit1):

P370.11:

Typically,theﬂowtemperatureisadjustedaccordingtoyour

requirements.Theﬂowtemperaturesensor(S3)isthemost

importantsensor.ThedesiredﬂowtemperatureatS3iscalculated

intheECLcontroller,basedontheoutdoortemperature(S1)and

thedesiredroomtemperature.Thelowertheoutdoortemperature,

thehigherthedesiredﬂowtemperature.Bymeansofaweek

schedule,theheatingcircuitcanbein‘Comfort’or‘Saving’mode

(twovaluesforthedesiredroomtemperature).InSavingmodethe

heatingcanbereducedorswitchedofftotally.

ThemotorizedcontrolvalveM2isopenedgraduallywhenthe

ﬂowtemperatureislowerthanthedesiredﬂowtemperatureand

viceversa.

AconnectedﬂoworenergymeterbasedonM-bussignalcanlimit

theﬂoworenergytoasetmaximumvalue.

Thereturntemperature(S5)canbelimited,forexamplenottobe

toohigh.Ifso,thedesiredﬂowtemperatureatS3canbeadjusted

(typicallytoalowervalue),thusresultinginagradualclosingof

themotorizedcontrolvalve.Furthermore,thereturntemperature

limitationcanbedependentontheoutdoortemperature.

Typically,thelowertheoutdoortemperature,thehigherthe

acceptedreturntemperature.

Inboiler-basedheatingsupplythereturntemperatureshouldnot

betoolow(sameadjustmentprocedureasabove).

BymeansofthepressuresensorS7theECLcontrollerveriﬁesthat

thecirculationpumpinquestionisoperating.Ifanacceptable

pressuredifferenceisnotdetected,theECLcontrolleractivates

thealarm.

TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis

higherthanaselectablevalue.

Thecirculationpump(P2)isONatheatdemandoratfrost

protection.

Thefrostprotectionmodemaintainsaselectableﬂowtemperature,

forexample10°C.

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OperatingGuideECLComfort310,applicationP370

Heating(circuit2):

Thiscircuitworksaftersameprinciplesascircuit1.

TheﬂowtemperaturesensorS9isthemostimportantsensor.

Bymeansofaweekschedule(upto3‘Comfort’periods/day),

heatingcircuit2canbein‘Comfort’or‘Saving’mode(twodifferent

temperaturevaluesfordesiredroomtemperature).Themotorized

controlvalveM3controlsthecircuit.

Thereturntemperature(S10)enableslimitationasdescribed

previously.

AconnectedﬂoworenergymeterbasedonM-bussignalcanlimit

theﬂoworenergytoasetmaximumvalue.Furthermore,the

limitationcanbeinrelationtotheoutdoortemperature.Typically,

thelowertheoutdoortemperature,thehighertheacceptedﬂow/

power.

Thecirculationpump(P3)isONatheatdemandoratfrost

protection.

TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis

higherthanaselectablevalue.

BymeansofthepressuresensorS14theECLcontrollerveriﬁesthat

thecirculationpumpinquestionisoperating.Ifanacceptable

pressuredifferenceisnotdetected,theECLcontrolleractivates

thealarm.

Heatingcircuit2canbeconnectedafterheatingcircuit1.Ifso,the

desiredﬂowtemperatureatS3canbeinﬂuencedbythedesired

ﬂowtemperatureatS9.

Thefrostprotectionmodemaintainsaselectableﬂowtemperature,

forexample10°C.

Heatingrelatedcircuits,ingeneral:

Exerciseofcirculationpumpsandcontrolvalvesinperiodswithout

heatingdemandcanbearranged.

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OperatingGuideECLComfort310,applicationP370

DomesticHotWater(DHW)

P370.11:

IfthemeasuredDHWtemperature(S4)islowerthanthedesired

DHWtemperature,themotorizedcontrolvalve(M1)isopened

graduallyandviceversa.

Bymeansofaweekschedule,theDHWcircuitcanbein‘Comfort’

or‘Saving’mode(twovaluesforthedesiredDHWtemperature).

Theweekschedulecanhaveupto3‘Comfort’periods/day.

AvalueforthedesiredDHWtemperaturecanbesetineachof

themodes.

Thereturntemperature(S6)canbelimitedtoaﬁxedvalue.

ThereturntemperatureS6canmeasure,formonitoringpurpose,

thereturntemperatureonthesecondaryside.Analternative

positionforS6canbeinthereturnontheprimarysideinorderto

limitthereturntemperaturetoaﬁxedvalue.

ThecirculationpumpP1canbecontrolledwithschedule.

ThecirculationpumpinquestionisONatDHWheatingdemandor

atfrostprotection.Thealternationtimecanbesetasanumberof

daysandasettimeontheshiftday.

TheFrostprotectionmodemaintainsaselectableﬂowtemperature,

forexample10°C.

AconnectedﬂoworenergymeterbasedonM-bussignalcanlimit

theﬂoworpowertoasetmaximumvalue.

Overridefunction:

Bymeansofanexternalswitchorarelaycontactthescheduleof

theDHWcircuitcanbeoverriddento

•constantComfortmode

•constantSavingmode

•constantFrostprotectionmode

DHWcircuits,ingeneral

AconnectedﬂoworenergymeterbasedonM-bussignalcanlimit

theﬂoworenergytoasetmaximumvalue.

IfthedesiredDHWtemperaturecannotbereached,theheating

circuitcanbeclosedgraduallytoallowmoreenergytotheDHW

circuit.

Ananti-bacteriafunctionisavailableforactivationonselected

daysoftheweek.

Theoutdoortemperature(S1)isusedtoprotectthecirculation

circuit(s)againstfrost.

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OperatingGuideECLComfort310,applicationP370

P370.11ingeneral

TheheatingcircuitcanbegraduallyorfullclosedduringDHW

heating(slidingorfullDHWpriority).

S15andS16areusedfor0–10pressureinputsandlogged.Input

scalingisenabled.Alarmloworhighvaluecanbemadeforeach

input.

A01andA02(outputsonECA32)areinparallelcontrollingM1

andM2.Either3-pointandanalogoutputarepossibleascontrol

signals.

S14,S15andS16pressureinputsarebeinglogged.

BymeansofthepressuredifferenceS7andS8theECLcontroller

veriﬁesthatthecirculationpumpinquestionisoperating.

UptotwoRemoteControlUnits,ECA30/31canbeconnectedto

oneECLcontrollerinordertocontroltheECLcontrollerremotely.

AdditionalECLComfortcontrollerscanbeconnectedviatheECL

485businordertoutilizecommonoutdoortemperaturesignal,

timeanddatesignals.

TheECLcontrollersintheECL485systemcanworkina

master-slavesystem.

Unusedinputcan,bymeansofanoverrideswitch,beused

tooverridethescheduletoaﬁxed'Comfort'or'Saving'mode.

ModbuscommunicationtoaSCADAsystemcanbeestablished.

TheM-busdatacanfurthermorebetransferredtotheModbus

communication.

IncaseofnotreachedpressureatS10withinasettimeanalarm

willbegenerated.

AlarmA1(=relay6)canbeactivatedif:

•Theactualﬂowtemperaturediffersfromthedesiredﬂow

temperature

•Theactivatedcirculationpumpdoesnotgenerateapressure

difference

•Thereﬁllwaterfunctiondoesnotgenerateapressurewithin

apresettime

•Ifatemperaturesensororitsconnectiondisconnects/short

circuits.(See:Commoncontrollersettings>System>Raw

inputoverview).

•Iftheuniversalalarminput(s)S9/S12areactivated.

P370.11

Theshowndiagramisafundamentalandsimpliﬁedexampleanddoes

notcontainallcomponentsthatarenecessaryinasystem.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:P370.11,sensorsandinputs

ECL310ElectroniccontrollerECLComfort310

ECL32Built-inextensionmodule

S1Outdoortemperaturesensor

S2Supplytemperaturesensor

S3Flowtemperaturesensor,circuit1

S4DHWﬂowtemperaturesensor,circuit2

S5(Optional)Returntemperaturesensor,circuit1

S6(Optional)DHWreturntemperaturesensor,circuit2

S7Differentialpressureswitch,circuit1

S8Differentialpressureswitch,circuit2

S9Alarminput

S10(Optional)Pressuretransmitterorpressureswitch,circuit1

S11(Optional)Secondarypressuresensor,circuit1.For

monitoringpurpose

S12Alarminput

S13(Optional)DHWcirculationreturnpressuresensor.For

monitoringpurpose

S14(Optional)Coldwatersupplypressuresensor.For

monitoringpurpose

S15(Optional)Primarysupplypressuresensor.Formonitoring

purpose

S16(Optional)Primaryreturnpressuresensor.Formonitoring

purpose

Listofcomponents:P370.11,pumpsandactuators

P1Circulationpump,DHW,circuit2

P2Circulationpump,DHW,circuit2

P3Circulationpump,heating,circuit1

P4Reﬁllwaterpump,circuit1

P5Circulationpump,heating,circuit1

P7Reﬁllwaterpump,circuit1

M1Motorizedcontrolvalve,circuit2

M2Motorizedcontrolvalve,circuit1

V1ON/OFFvalve,circuit1,reﬁllwatervalve

A1Alarm

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OperatingGuideECLComfort310,applicationP370

Heating(circuit1):

P370.11:

Typically,theﬂowtemperatureisadjustedaccordingtoyour

requirements.Theﬂowtemperaturesensor(S3)isthemost

importantsensor.ThedesiredﬂowtemperatureatS3iscalculated

intheECLcontroller,basedontheoutdoortemperature(S1)and

thedesiredroomtemperature.Thelowertheoutdoortemperature,

thehigherthedesiredﬂowtemperature.Bymeansofaweek

schedule,theheatingcircuitcanbein‘Comfort’or‘Saving’mode

(twovaluesforthedesiredroomtemperature).InSavingmodethe

heatingcanbereducedorswitchedofftotally.

ThemotorizedcontrolvalveM2isopenedgraduallywhenthe

ﬂowtemperatureislowerthanthedesiredﬂowtemperatureand

viceversa.

AconnectedﬂoworenergymeterbasedonM-bussignalcanlimit

theﬂoworenergytoasetmaximumvalue.

Thereturntemperature(S5)canbelimited,forexamplenottobe

toohigh.Ifso,thedesiredﬂowtemperatureatS3canbeadjusted

(typicallytoalowervalue),thusresultinginagradualclosingof

themotorizedcontrolvalve.Furthermore,thereturntemperature

limitationcanbedependentontheoutdoortemperature.

Typically,thelowertheoutdoortemperature,thehigherthe

acceptedreturntemperature.

Inboiler-basedheatingsupplythereturntemperatureshouldnot

betoolow(sameadjustmentprocedureasabove).

BymeansofthepressuresensorS7theECLcontrollerveriﬁesthat

thecirculationpumpinquestionisoperating.Ifanacceptable

pressuredifferenceisnotdetected,theECLcontrolleractivates

thealarm.

TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis

higherthanaselectablevalue.

Thecirculationpump(P2)isONatheatdemandoratfrost

protection.

Thefrostprotectionmodemaintainsaselectableﬂowtemperature,

forexample10°C.

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OperatingGuideECLComfort310,applicationP370

AdditionalforP370.11,Heatingcircuit1

ThecirculationpumpsP3andP5areoperatedalternately.One

circulationpumpisusedasaworkingpumpandtheother

circulationpumpisusedasasparepump.Thecirculationpump

inquestionisONatheatdemandoratfrostprotection.The

alternationtimecanbesetasanumberofdaysandasettimeon

theshiftday.Asolutionwithasinglecirculationpumpcanalso

beselected.

Thestaticpressureonthesecondaryside(consumerside)can

1.bemeasuredasa0-10Vsignal(fromapressuretransmitter)or

2.beaswitchsignalfromapressureswitch

Incaseofatoolowpressure(S10),thereﬁllwaterfunctionwill

supplementwithwaterfromawatersourceonthesupplyside.The

reﬁllpumpP4/P7isswitchedONandtheON/OFFvalveV1opens.

ThereﬁllpumpsP4andP7areoperatedalternately.Thealternation

timecanbesetasanumberofdays.

Asolutionwithasinglereﬁllpumpcanalsobeselected.Incase

ofnotreachedpressureatS10withinasettimeanalarmwillbe

generated.

ThesupplytemperatureS2candeterminethedesiredﬂow

temperature.

Exerciseofcirculationpumpsandcontrolvalveinperiodswithout

heatingdemandcanbearranged.

Overridefunction:

Bymeansofanexternalswitchorarelaycontactthescheduleof

theheatingcircuitcanbeoverriddento

•constantComfortmode

•constantSavingmode

•constantDesiredﬂowtemperature

•constantFrostprotectionmode

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OperatingGuideECLComfort310,applicationP370

DomesticHotWater(DHW)

P370.11:

IfthemeasuredDHWtemperature(S4)islowerthanthedesired

DHWtemperature,themotorizedcontrolvalve(M1)isopened

graduallyandviceversa.

Bymeansofaweekschedule,theDHWcircuitcanbein‘Comfort’

or‘Saving’mode(twovaluesforthedesiredDHWtemperature).

Theweekschedulecanhaveupto3‘Comfort’periods/day.

AvalueforthedesiredDHWtemperaturecanbesetineachof

themodes.

Thereturntemperature(S6)canbelimitedtoaﬁxedvalue.

ThereturntemperatureS6canmeasure,formonitoringpurpose,

thereturntemperatureonthesecondaryside.Analternative

positionforS6canbeinthereturnontheprimarysideinorderto

limitthereturntemperaturetoaﬁxedvalue.

ThecirculationpumpP1canbecontrolledwithschedule.

ThecirculationpumpinquestionisONatDHWheatingdemandor

atfrostprotection.Thealternationtimecanbesetasanumberof

daysandasettimeontheshiftday.

TheFrostprotectionmodemaintainsaselectableﬂowtemperature,

forexample10°C.

AconnectedﬂoworenergymeterbasedonM-bussignalcanlimit

theﬂoworpowertoasetmaximumvalue.

Overridefunction:

Bymeansofanexternalswitchorarelaycontactthescheduleof

theDHWcircuitcanbeoverriddento

•constantComfortmode

•constantSavingmode

•constantFrostprotectionmode

DHWcircuits,ingeneral

AconnectedﬂoworenergymeterbasedonM-bussignalcanlimit

theﬂoworenergytoasetmaximumvalue.

IfthedesiredDHWtemperaturecannotbereached,theheating

circuitcanbeclosedgraduallytoallowmoreenergytotheDHW

circuit.

Ananti-bacteriafunctionisavailableforactivationonselected

daysoftheweek.

Theoutdoortemperature(S1)isusedtoprotectthecirculation

circuit(s)againstfrost.

AQ437051327765en-010101©Danfoss|2023.04|13

OperatingGuideECLComfort310,applicationP370

P370.12ingeneral

ThecirculationpumpsP1andP2(circuit1)/P3andP5(circuit

2)workinshiftaccordingtoaschedule.Onepumpisusedasa

sparepumpandtheotherpumpisworking.Incaseofmalfunction

(missingdifferentialpressure)ofonepump,theotherpumpwill

takeover.Analarmwillbegeneratedandthedefectivepumpcan

beinspected/repaired.

WhenS12digitalinputisinmonitoringmode,alarmcanbeset.

S15andS16areusedfor0-10pressureinputsandlogged.Input

scalingisenabled.Alarmloworhighvaluecanbemadeforeach

input.

A01andA02(outputsonECA32)areinparallelcontrollingM1

andM2.Either3-pointandanalogoutputarepossibleascontrol

signals.

SCADAoverridenowpossiblewithanoffsetorabsolutevalue.

Summerandwinterdatesforcut-offareimplementedinstandard

set-up.

AlarmA1(=relay6)canbeactivatedif:

•Theactualﬂowtemperaturediffersfromthedesiredﬂow

temperature

•Theactivatedcirculationpumpdoesnotgenerateapressure

difference

•Thereﬁllwaterfunctiondoesnotgenerateapressurewithin

apresettime

ModbuscommunicationtoaSCADAsystemcanbeestablished.

UptotwoRemoteControlUnits,ECA30/31canbeconnectedto

oneECLcontrollerinordertocontroltheECLcontrollerremotely.

AdditionalECLComfortcontrollerscanbeconnectedviatheECL

485businordertoutilizecommonoutdoortemperaturesignal,

timeanddatesignals.

TheECLcontrollersintheECL485systemcanworkina

master-slavesystem.

Unusedinputscan,bymeansofanoverrideswitch,beusedto

overridethescheduletoaﬁxed'Comfort'or'Saving'mode.

M-buscommunicationenablesconnectiontoﬂoworenergymeter.

Thecontrollercanlimittheﬂoworenergytoasetmaximum,but

alsoinrelationtotheoutdoortemperature.

Furthermore,theM-busdatacanbetransferredtotheModbus

communication.

P370.12

Theshowndiagramisafundamentalandsimpliﬁedexampleanddoes

notcontainallcomponentsthatarenecessaryinasystem.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:P370.12,sensorsandinputs

S1Outdoortemperaturesensor

S2Supplyﬂowtemperaturesensor

S3Flowtemperaturesensor,circuit1

S4Flowtemperaturesensor,circuit2

S5Returntemperaturesensor,circuit1

S6Returntemperaturesensor,circuit2

S7Differentialpressureswitch,circuit1

S8Differentialpressureswitch,circuit2

S9Pressuretransmitterorpressureswitch,circuit2

S10Pressuretransmitterorpressureswitch,circuit1

S12Alarm

S15(Optional)Primarysupplypressuresensor.Formonitoring

purpose

S16(Optional)Primaryreturnpressuresensor.Formonitoring

purpose

Listofcomponents:P370.12,pumpsandactuators

P1Circulationpump,circuit1

P2Circulationpump,circuit1

P3Circulationpump,circuit2

P4Reﬁllwaterpump

P5Circulationpump,circuit2

M1Motorizedcontrolvalve,circuit1

M2Motorizedcontrolvalve,circuit2

V1Solenoidvalve,circuit1,reﬁllwatervalve

V2Solenoidvalve,circuit2,reﬁllwatervalve

R6Relayoutput,alarm

14|©Danfoss|2023.04AQ437051327765en-010101

OperatingGuideECLComfort310,applicationP370

P370.12:Heating(circuit1and2):

Typically,theﬂowtemperatureisadjustedaccordingtoyour

requirements.TheﬂowtemperaturesensorS3(circuit1)and

S4(circuit2)arethemostimportantsensors.Thedesiredﬂow

temperaturesatS3andS4arecalculatedintheECLcontroller,

basedontheoutdoortemperature(S1).Thelowertheoutdoor

temperature,thehigherthedesiredﬂowtemperature.

Thesupplytemperature(S2)isusedto

1.controltheS3andS4temperaturesinrelationtotheS2

temperatureor

2.maximizethelimitofthedesiredﬂowtemperature

Thefactorysetting,wherethesupplytemperature(S2)determines

thedesiredﬂowtemperature,doesnotchangethedesiredﬂow

temperatureaccordingto‘Comfort’or‘Saving’mode.

However,ifthesupplytemperature(S2)determinesamax.

limitationofthedesiredﬂowtemperature,the‘Comfort’and

‘Saving’modewillhavetwodifferenttemperaturevaluesfor

desiredroomtemperature.

ThemotorizedcontrolvalvesM1(circuit1)andM2(circuit2)are

openedgraduallywhentheﬂowtemperatureislowerthanthe

desiredﬂowtemperatureandviceversa.

ThereturntemperaturesS5(circuit1)andS6(circuit2)tothe

districtheatingsupplyshouldnotbetoohigh.Ifso,thedesired

ﬂowtemperaturecanbeadjusted(typicallytoalowervalue),thus

resultinginagradualclosingofthemotorizedcontrolvalves.

Inboiler-basedheatingsupplythereturntemperatureshouldnot

betoolow(sameadjustmentprocedureasabove).

Furthermore,thereturntemperaturelimitationcanbedependent

oftheoutdoortemperature.Typically,thelowertheoutdoor

temperature,thehighertheacceptedreturntemperature.

ThecirculationpumpinquestionisONatheatdemandoratfrost

protection.

TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis

higherthanaselectablevalue.

Thestaticpressureonthesecondaryside(consumerside)can

1.bemeasuredasa0-10Vsignal(fromapressuretransmitter)or

2.canbeaswitchsignalfromapressureswitch

IncaseofatoolowpressureatS9/S10,thereﬁllwaterfunction

willsupplementwithwaterfromthesupplyside.

PumpP4willbestartedandactuatorV1orV2willopen.

Thecontrollerispre-programmedwithfactorysettingsthatareshown

inthe‘ParameterIDoverview’appendix.

OperatingGuideECLComfort310,applicationP370

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.

Advicesforsettings:

Whencircuit1mustbeabletoreceiveaheatdemandfromcircuit

2,circuit3oraslave:

MENU\Settings\Application:'Demandoffset'(ID11017):3K*

WhenaheatingorDHWcircuitmustbeabletosenditsheat

demandtocircuit1orthemaster:

MENU\Settings\Application:'SenddesiredT'(ID1x500):ON

WhenaheatingorDHWcircuitshouldnotsenditsheatdemand

tocircuit1orthemaster:

MENU\Settings\Application:'SenddesiredT'(ID1x500):OFF

*Thisrecommendedvalueisaddedtotheheatdemandvaluefrom

circuit2,circuit3ortheslave;alwaysthehighestdemand.

OperatingGuideECLComfort310,applicationP370

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!

OperatingGuideECLComfort310,applicationP370

Theeasywaytolockthecontrollertoitsbaseorunlockitistousea

screwdriveraslever.

Mountingonawall

Mountthebasepartonawallwithasmoothsurface.Establishthe

electricalconnectionsandpositionthecontrollerinthebasepart.

Securethecontrollerwiththelockingpin.

MountingonaDINrail(35mm)

MountthebasepartonaDINrail.Establishtheelectrical

connectionsandpositionthecontrollerinthebasepart.Secure

thecontrollerwiththelockingpin.

DismountingtheECLComfortcontroller

Inordertoremovethecontrollerfromthebasepart,pulloutthe

lockingpinbymeansofascrewdriver.Thecontrollercannowbe

removedfromthebasepart.

Theeasywaytolockthecontrollertoitsbaseorunlockitistousea

screwdriveraslever.

OperatingGuideECLComfort310,applicationP370

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.

OperatingGuideECLComfort310,applicationP370

2.3.3MountingtheinternalI/OmoduleECA32

MountingoftheinternalI/OmoduleECA32

TheECA32module(ordercodeno.087H3202)mustbeinserted

intotheECLComfort310/310Bbasepartforadditionalinputand

outputsignalsinrelevantapplications.

TheconnectionbetweentheECLComfort310/310BandECA32

isa10-pole(2x5)connector.Theconnectionisautomatically

establishedwhentheECLComfort310/310Bisplacedonthe

basepart.

OperatingGuideECLComfort310,applicationP370

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Danfoss P370 Operating instructions

Danfoss P370 Operating instructions

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