Danfoss A377 Operating guide

OperatingGuide

ECLComfort310,applicationA377

1.0TableofContents

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

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

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

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

2.2Identifyingthesystemtype......................................13

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

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

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

2.6InsertingtheECLApplicationKey..............................32

2.7Checklist............................................................39

2.8Navigation,ECLApplicationKeyA377.........................40

3.0Dailyuse.........................................................55

3.1Howtonavigate...................................................55

3.2Understandingthecontrollerdisplay..........................56

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

3.4Monitoringtemperaturesandsystem

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

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

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

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

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

5.0Settings...........................................................67

5.1IntroductiontoSettings..........................................67

5.2Flowtemperature..................................................68

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

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

5.5Flow/powerlimit.................................................81

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

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

5.8Application.........................................................96

5.9Heatcut-out......................................................106

5.10Tanktemperature................................................109

5.11Alarm..............................................................114

5.12Alarmoverview..................................................118

5.13Anti-bacteria......................................................119

6.0Commoncontrollersettings............................121

6.1Introductionto‘Commoncontrollersettings’..............121

6.2Time&Date.......................................................122

6.3Holiday............................................................123

6.4Inputoverview...................................................125

6.5Log.................................................................126

6.6Outputoverride..................................................127

6.7Keyfunctions.....................................................128

6.8System.............................................................130

7.0Miscellaneous................................................137

7.1ECA30/31setupprocedures.................................137

7.2Overridefunction................................................145

7.3Severalcontrollersinthesamesystem......................148

7.4Frequentlyaskedquestions....................................151

7.5Definitions........................................................154

7.6Type(ID6001),overview.......................................158

7.7Automatic/manualupdateoffirmware.....................159

7.8ParameterIDoverview..........................................160

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OperatingGuideECLComfort310,applicationA377

1.1Importantsafetyandproductinformation

1.1.1Importantsafetyandproductinformation

ThisInstallationGuideisassociatedwithECLApplicationKeyA377
(ordercodeno.087H3817).

TheECLApplicationKeyA377contains3subtypes,allapplicablein
ECLComfort310:

•A377.1:2xheatingand1xDHW

•A377.2:2xheatingand1xadvancedDHW

•A377.3:2xheatingand1xadvancedDHWwithDHW
circulationtemperaturemonitoring

SeetheMountingGuide(deliveredwiththeapplicationkey)for
applicationexamplesandelectricalconnections.

ThedescribedfunctionsarerealizedinECLComfort310for
advancedsolutions,forexampleM-bus,ModbusandEthernet
(Internet)communication.

TheapplicationKeyA377complieswithECLComfort310
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>Products&Solutions>DistrictHeating
andCooling>T ools&Software>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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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.

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.

•Manualupdateofcontrollersoftware(firmware):
Seethesection"Automatic/manualupdateoffirmware"

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OperatingGuideECLComfort310,applicationA377

SafetyNote

Toavoidinjuryofpersonsanddamagestothedevice,itisabsolutely
necessarytoreadandobservetheseinstructionscarefully.

Necessaryassembly,start-up,andmaintenanceworkmustbe
performedbyqualifiedandauthorizedpersonnelonly.

Locallegislationsmustberespected.Thiscomprisesalsocable
dimensionsandtypeofisolation(doubleisolatedat230V).

AfusefortheECLComfortinstallationismax.10Atypically.

TheambienttemperaturerangesforECLComfortinoperationare:
ECLComfort210/310/311:0-55°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

-

Circuit1Parameterno.

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12174

IfanIDdescriptionismentionedmorethanonce,itmeansthatthere
arespecialsettingsforoneormoresystemtypes.Itwillbemarked
withthesystemtypeinquestion(e.g.12174-A266.9).

1

-

2

Circuit2Parameterno.

174

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OperatingGuideECLComfort310,applicationA377

ParametersindicatedwithanIDno.like"1x607"meanauniversal
parameter.

xstandsforcircuit/parametergroup.

DisposalNote

Thissymbolontheproductindicatesthatitmaynot
bedisposedofashouseholdwaste.

Itmustbehandedovertotheapplicabletake-back
schemefortherecyclingofelectricalandelectronic
equipment.

•Disposeoftheproductthroughchannelsprovided
forthispurpose.

•Complywithalllocalandcurrentlyapplicablelaws
andregulations.

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OperatingGuideECLComfort310,applicationA377

2.0Installation

2.1Beforeyoustart

Theapplications(subtypes)intheA377applicationkeyarevery
flexibleandalmostidentical.
However,someapplicationshaveextrafunctionswhichare
describedseparately.
Thesearethebasicprinciples:

Heating(circuit1):

Typically,theflowtemperatureisadjustedaccordingtoyour
requirements.TheflowtemperaturesensorS3isthemost
importantsensor.ThedesiredflowtemperatureatS3iscalculated
intheECLcontroller,basedontheoutdoortemperature(S1).
Thelowertheoutdoortemperature,thehigherthedesiredflow
temperature.

Bymeansofaweekschedule(upto3‘Comfort’periods/day),the
heatingcircuitcanbein‘Comfort’or‘Saving’mode(twodifferent
temperaturevaluesforthedesiredroomtemperature).
InSavingmodetheheatingcanbereducedorswitchedofftotally.

ThemotorizedcontrolvalveM2isopenedgraduallywhenthe
flowtemperatureislowerthanthedesiredflowtemperatureand
viceversa.

Thereturntemperature(S5)tothedistrictheatingsupplyshould
notbetoohigh.Ifso,thedesiredflowtemperaturecanbeadjusted
(typicallytoalowervalue),thusresultinginagradualclosingof
themotorizedcontrolvalve.Furthermore,thereturntemperature
limitationcanbedependentontheoutdoortemperature.
Typically,thelowertheoutdoortemperature,thehigherthe
acceptedreturntemperature.

TypicalA377.1application,examplea:

Theshowndiagramisafundamentalandsimplifiedexampleanddoes
notcontainallcomponentsthatarenecessaryinasystem.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Inboiler-basedheatingsupplythereturntemperatureshouldnot
betoolow(sameadjustmentprocedureasabove).

Ifthemeasuredroomtemperature(RemotecontrolunitECA30/

31)doesnotequalthedesiredroomtemperature,thedesiredflow
temperaturecanbeadjusted.

Thecirculationpump(P2)isONatheatdemandoratfrost
protection.
TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis
higherthanaselectablevalue.

AconnectedfloworenergymeterbasedonM-bussignalcanlimit
thefloworenergytoasetmaximumvalue.Furthermore,the
limitationcanbeinrelationtotheoutdoortemperature.
Typically,thelowertheoutdoortemperature,thehigherthe
acceptedflow/power.

Thedesiredflowtemperatureofheatingcircuit1can,viaS7,be
controlledbymeansofanexternalvoltageintherange0-10volt.

Thefrostprotectionmodemaintainsaselectableflowtemperature,
forexample10°C.
Analarmcanbeactivatediftheactualflowtemperaturediffers
fromthedesiredflowtemperature.

TheroomtemperaturesignalcanbeachievedfromtheRemote
ControlUnitECA30/31,ifconnected.

A377.2:
WhenbothDHWheating/chargingandheatingcircuit1are
active,thecirculationpumpintheheatingcircuitcancontinue
operating.Theheatingcircuittemperatureistypicallyincreased.
Thisisparallelmode.Iftheincreaseoftheflowtemperature
cannotbeaccepted,thecirculationpumpinheatingcircuitcanbe
stopped.ThisisDHWprioritymode.

Listofcomponents:

ECL310

ElectroniccontrollerECLComfort310

S1

Outdoortemperaturesensor

S2Returntemperaturesensor,circuit2

S3

Flowtemperaturesensor,circuit1

S4

Flowtemperaturesensor,circuit2

S5Returntemperaturesensor,circuit1

S6

DHWtanktemperaturesensor,upper

(S7)

(Externaltemperaturecontrol,notillustrated)

S8

DHWtanktemperaturesensor,lower

S9

DHWflowtemperaturesensor,circuit3

S10Returntemperaturesensor,circuit3

M1

Motorizedcontrolvalve(3-pointcontrolled),circuit3
Alternative:Thermoactuator(DanfosstypeABV)

M2

Motorizedcontrolvalve(3-pointcontrolled),circuit1
Alternative:Thermoactuator(DanfosstypeABV)

M3

Motorizedcontrolvalve(3-pointcontrolled),circuit2
Alternative:Thermoactuator(DanfosstypeABV)

P1

DHWheatingpump(notillustrated)

P2

Circulationpump,heating,circuit1

P3

DHWcirculationpump

P4

DHWchargingpump

P5

Circulationpump,heating,circuit2

A1

Alarm

A/B

Internal/externalconnectionsforDHWcirculation

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OperatingGuideECLComfort310,applicationA377

Heatingcircuit,ingeneral:

Exerciseofcirculationpumpandcontrolvalveinperiodswithout
heatingdemandcanbearranged.

Heating(circuit2):

Thiscircuitworksaftersameprinciplesascircuit1.

TheflowtemperaturesensorS4isthemostimportantsensor.

ThemotorizedcontrolvalveM3controlsthecircuit.

Thereturntemperature(S2)enableslimitationasdescribed
previously.

Heatingcircuit2canbeconnectedafterheatingcircuit1.Ifso,the
desiredflowtemperatureatS3canbeinfluencedbythedesired
flowtemperatureatS4.

A377.1examplea:

A377.1,exampled

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OperatingGuideECLComfort310,applicationA377

DHW(circuit3):

TheDHWheatingcircuitisconnecteddirectlytotheheating
source.ThetemperaturesensorS10measuresthereturn
temperature.Ifthereturntemperaturelimitisexceeded,the
desiredtemperatureatS9canbecorrected.

Bymeansofaweekschedule(upto3‘Comfort’periods/day),the
DHWcircuitcanbein‘Comfort’or‘Saving’mode(twodifferent
temperaturevaluesfordesiredDHWtemperature).

Chargingstart,DHWtankwith1or2temperaturesensors

WhenthemeasuredDHWtemperatureS6getslowerthanthe
charging-starttemperature,theDHWheatingpumpP1isswitched
ON.

Themotorizedcontrolvalve(M1)iscontrolledinordertomaintain
theheating/chargingtemperatureatS9.

TheDHWchargingpumpisswitchedONwhentheS9temperature
isacceptable,whichmeansitmustbewithin3Kfromdesired
heating/chargingtemperature.SeealsoapplicationA377.1,ex.d.

IfS9isplacedontheheat-exchanger'ssecondaryside,itmustbe
placedintheheat-exchanger.

TheDHWchargingtemperatureisdeterminedbythedesiredDHW
temperatureatS6plusthesetchargingdifference.Thecharging
temperatureistypically5–10degreeshigherthanthedesired
DHWtemperature.

A377.1,exampled

Charging-starttemperature:

DesiredDHWtemperature+Startdifference.
Example:
50°C+(-3K)=47°C

A377.1,A377.3:
S10canhaveoneoftwofunctions:

1.Actasreturntemperaturelimiter

2.MonitortheDHWheatingtemperatureinordertoavoid
dischargingandenablereturntemperaturelimitation.

Function1:Thereturntemperature,whentheDHWheating/
chargingisactive,canbelimitedtoasetvalue.

Function2:TheDHWchargingpumpisswitchedONwhentheS10
temperatureishigherthantheDHWtemperature.After4minutes,
thereturntemperaturelimitation(setvalue)isactivated.

A377.2:
TheDHWheating/chargingcircuitisconnectedafterheating
circuit1.TheDHWheatingcircuitcannotbeconnecteddirectlyto
theheatingsource.ThetemperaturedemandatS9istransferredas
desiredtemperatureatS3.

TheDHWheatingcircuithasapreheatingcircuit,wheretheDHW
heatingtemperatureatS9isadaptedtothedesiredDHWcharging
temperatureatS10.IftheDHWchargingtemperatureatS10
cannotbereached,theECLcontrollergraduallyincreasesthe
desiredDHWheatingtemperatureatS9inordertoobtaintheDHW
chargingtemperature.TheECLcontrollerrememberstheadapted
S9temperature.Amaximumtemperaturevaluecanbeset.

Adelayedstart

ofchargingpumpcanbearranged.Also,itcan
bearranged,thatthestartofthechargingpumpdependsonthe
chargingtemperature.Inthiscase,S10mustbeplacedinthe
heat-exchanger.

TheS10temperaturesensorcanalternativelybeusedasamonitoring
temperaturesensortoenableDHWcharging.Ifusedasamonitoring
temperaturesensor,theS10temperaturesensormustbeplacedin
thesupplypipe.

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OperatingGuideECLComfort310,applicationA377

Chargingstop,DHWtankwith1temperaturesensor:

WhenthemeasuredDHWtemperatureS6getshigherthan
thecharging-stoptemperature,theDHWchargingpumpP4is
switchedOFF.Apost-runtimecanbeset.

Chargingstop,DHWtankwith2temperaturesensors:

WhenthemeasuredDHWtemperatureS6gets2Khigherthan
thecharging-starttemperatureANDthelowertanktemperature
S8getshigherthanthecharging-stoptemperature,theDHW
chargingpumpP4isswitchedOFF.Apost-runtimecanbeset.

DHWcirculation:

InchargingapplicationstheDHWcirculationcanbethrough
theDHWtank(connectionA)orthroughtheheat-exchanger
(connectionB).
ThesolutionwithconnectionAresultsinclosingofthemotorized
controlvalveaftertheDHWtankchargingprocedure.
ThesolutionwithconnectionBstopstheDHWchargingpump
aftertheDHWtankchargingprocedure.Thetemperatureatthe
chargingtemperaturesensorismaintainedaccordingtothevalue
ofthedesiredDHWtemperatureinordertocompensateforthe
heatlossintheDHWcirculationpipe.

Flow/powerlimitation

AconnectedfloworenergymeterbasedonM-bussignalcanlimit
thefloworpowertoasetmaximumvalue.

Ananti-bacteriafunctionisavailableforactivationonselected
daysoftheweek.

TheDHWcirculationpumpP3hasaweekscheduleforupto3
ON-periodsperday.

TypicalA377.2application,examplea:

Theshowndiagramisafundamentalandsimplifiedexampleanddoes
notcontainallcomponentsthatarenecessaryinasystem.
AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:

ECL310

ElectroniccontrollerECLComfort310

S1

Outdoortemperaturesensor
S2Returntemperaturesensor,circuit2
S3

Flowtemperaturesensor,circuit1
S4

Flowtemperaturesensor,circuit2
S5Returntemperaturesensor,circuit1
S6

DHWtanktemperaturesensor,upper

(S7)

(Externaltemperaturecontrol,notillustrated)
S8

DHWtanktemperaturesensor,lower
S9

DHWheatingtemperaturesensor,circuit3

S10

DHWchargingtemperaturesensor,circuit3

M1

Motorizedcontrolvalve(3-pointcontrolled),circuit3

Alternative:Thermoactuator(DanfosstypeABV)

M2

Motorizedcontrolvalve(3-pointcontrolled),circuit1

Alternative:Thermoactuator(DanfosstypeABV)

M3

Motorizedcontrolvalve(3-pointcontrolled),circuit2

Alternative:Thermoactuator(DanfosstypeABV)
P1

DHWheatingpump
P2

Circulationpump,heating,circuit1
P3

DHWcirculationpump
P4

DHWchargingpump
P5

Circulationpump,heating,circuit2

A1

Alarm

A/B

Internal/externalconnectionsforDHWcirculation

Charging-stoptemperature:

DesiredDHWtemperature+Stopdifference.
Example,S6only:
50°C+(3K)=53°C
Example,S6andS8:
50°C+(-8K)=42°C

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OperatingGuideECLComfort310,applicationA377

A377.2examplea:

A377.2exampleb:

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OperatingGuideECLComfort310,applicationA377

A377.3,ex.a

Theshowndiagramisafundamentalandsimplifiedexampleanddoes
notcontainallcomponentsthatarenecessaryinasystem.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:

ECL310

ElectroniccontrollerECLComfort310

S1

Outdoortemperaturesensor

S2Returntemperaturesensor,circuit2

S3

Flowtemperaturesensor,circuit1

S4

Flowtemperaturesensor,circuit2

S5Returntemperaturesensor,circuit1

S6

DHWtanktemperaturesensor,upper

(S7)

(Externaltemperaturecontrol,notillustrated)

S8

DHWcirculationtemperaturesensor

S9

DHWheating/chargingtemperaturesensor

S10DHWreturntemperaturesensor,circuit3

M1

Motorizedcontrolvalve(3-pointcontrolled),circuit3

Alternative:Thermoactuator(DanfosstypeABV)

M2

Motorizedcontrolvalve(3-pointcontrolled),circuit1

Alternative:Thermoactuator(DanfosstypeABV)

M3

Motorizedcontrolvalve(3-pointcontrolled),circuit2

Alternative:Thermoactuator(DanfosstypeABV)

P1

DHWheatingpump

P2

Circulationpump,heating,circuit1

P3

DHWcirculationpump

P4

DHWchargingpump

P5

Circulationpump,heating,circuit2

A1

Alarm

A/B

Internal/externalconnectionsforDHWcirculation

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OperatingGuideECLComfort310,applicationA377

A377,ingeneral

UptotwoRemoteControlUnits,ECA30/31canbeconnectedto
oneECLcontrollerinordertomeasuretheroomtemperatureand
controltheECLcontrollerremotely.

WhentheDHWcircuitisactivefortheheating/charging
procedure,heatingcircuits1and2canbeclosedinordertogive
higherprioritytotheDHWheating/charging.

HolidayprogramsarepresentforHeatingandDHWcircuits.
Besides,aholidayprogramispresentfortheentirecontroller.

Oneormoreconnectedfloworenergymeters(basedonM-bus
signal)canlimitthefloworpowertoasetmaximum(DHWcircuit)
andinrelationtotheoutdoortemperature(heatingcircuits).

InputS7canbeusedtocontrolthedesiredflowtemperatureof
heatingcircuit1.Theappliedvoltageintherange0-10voltis
convertedintheECLcontrollertothedesiredflowtemperature.

Exerciseofcirculationpumpsandcontrolvalveinperiodswithout
heatingdemandcanbearranged.

AdditionalECLComfortcontrollerscanbeconnectedviatheECL
485businordertoutilizecommonoutdoortemperaturesignal,
timeanddatesignals.TheECLcontrollersintheECL485system
canworkinmaster-slavesystem.

Unusedinputcan,bymeansofanoverrideswitch,beused
tooverridethescheduletoafixed'Comfort' ,'Saving','Frost
protection'or'Constanttemperature'mode.

ModbuscommunicationtoaSCADAsystemcanbeestablished.
TheM-busdatacanfurthermorebetransferredtotheModbus
communication.

Alarm:

AlarmA1(=relay6)canbeactivated:

•iftheactualflowtemperaturediffersfromthedesiredflow
temperature

•ifatemperaturesensororitsconnectiondisconnects/short
circuits.(See:Commoncontrollersettings>System>Raw
inputoverview).

WhentheA377hasbeenuploaded,theECLComfortcontroller
startsinManualmode.Thiscanbeusedforcheckingthecontrolled
componentsforcorrectfunctionality.

Thecontrollerispre-programmedwithfactorysettingsthatareshown
inthe‘ParameterIDoverview’appendix.

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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.

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OperatingGuideECLComfort310,applicationA377

Adviceforsettings:

Factorysettingsinthesubtypeswillrunthemostapplication
examples.Someoftheapplicationexamplesneedchangeof
dedicatedsettings.

Seethedocumentationforapplicationsandsubtypes,delivered
withtheapplicationkey.

A377.1,ex.a
A377.1,ex.d
A377.3,ex.a
A377.3,ex.b

DHWcirculationpipecanbeconnectedtotheDHWtankat'A'
forinternalcirculationortotheheat-exchangerat'B'forexternal
circulation.

Issue:

DHWcircuit(3):

InternalDHWcirculation

DHWcircuit(3):

ExternalDHWcirculation

A377.1,ex.b
A377.1,ex.c

Circuit1mustbeabletoreceivetheheatdemandfromcircuit2.

Issue:

Heatingcircuit(1):

Heatdemand

*Thisvalueisaddedtotheheatdemandvaluefromcircuit2.

Circuit2mustbeabletosendtheheatdemandtocircuit1.

Issue:

Heatingcircuit(2):

Heatdemand

Navigation:

MENU\Settings\Application:'Cont.Tcontrol'

MENU\Settings\Application:'Cont.Tcontrol'

Navigation:

MENU\Settings\Application:'Demandoffset'

Navigation:

MENU\Settings\Application:'SenddesiredT'

IDno.:

13054

13054

IDno.:

11017

IDno.:

12500

Recommended
setting:

OFF

ON

Recommended
setting:

3K*

Recommended
setting:

ON

DHWcirculationpipecanbeconnectedtotheDHWtankat'A'
forinternalcirculationortotheheat-exchangerat'B'forexternal
circulation.

Issue:

DHWcircuit(3):

InternalDHWcirculation

DHWcircuit(3):

ExternalDHWcirculation

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Navigation:

MENU\Settings\Application:'Cont.Tcontrol'

MENU\Settings\Application:'Cont.Tcontrol'

IDno.:

13054

13054

Recommended
setting:

OFF

ON

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OperatingGuideECLComfort310,applicationA377

Adviceforsettings:

A377.2,ex.a

Circuit1mustbeabletoreceivetheDHW-heatingdemandfrom
circuit3.

Issue:

Heatingcircuit(1):

Heatdemand

*ThisvalueisaddedtotheDHW-heatingdemandfromcircuit3.

Circuit3mustbeabletosendtheDHW-heatingdemandto
circuit1.

Issue:

DHWcircuit(3):

Heatdemand

DHWcirculationpipecanbeconnectedtotheDHWtankat'A'
forinternalcirculationortotheheat-exchangerat'B'forexternal
circulation.

Issue:

DHWcircuit(3):

InternalDHWcirculation

DHWcircuit(3):

ExternalDHWcirculation

Navigation:

MENU\Settings\Application:'Demandoffset'

Navigation:

MENU\Settings\Application:'SenddesiredT'

Navigation:

MENU\Settings\Application:'Cont.Tcontrol'

MENU\Settings\Application:'Cont.Tcontrol'

IDno.:

11017

IDno.:

13500

IDno.:

13054

13054

Recommended
setting:

3K*

Recommended
setting:

ON

Recommended
setting:

OFF

ON

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OperatingGuideECLComfort310,applicationA377

Adviceforsettings:

A377.2,ex.b
A377.2,ex.c

Circuit1mustbeabletoreceivetheheatdemandfromcircuit2
andtheDHW-heatingdemandfromcircuit3.

Issue:

Heatingcircuit(1):

Heatdemand

*Thisvalueisaddedtotheheatingdemandvaluecircuit2and3.

Circuit2mustbeabletosendtheheatdemandtocircuit1.

Issue:

Heatingcircuit(2):

Heatdemand

Circuit3mustbeabletosendtheDHW-heatingdemandto
circuit1.

Issue:

DHWcircuit(3):

Heatdemand

Navigation:

MENU\Settings\Application:'Demandoffset'

Navigation:

MENU\Settings\Application:'SenddesiredT'

Navigation:

MENU\Settings\Application:'SenddesiredT'

IDno.:

11017

IDno.:

12500

IDno.:

13500

Recommended
setting:

3K*

Recommended
setting:

ON

Recommended
setting:

ON

DHWcirculationpipecanbeconnectedtotheDHWtankat'A'
forinternalcirculationortotheheat-exchangerat'B'forexternal
circulation.

Issue:

DHWcircuit(3):

InternalDHWcirculation

DHWcircuit(3):

ExternalDHWcirculation

Navigation:

MENU\Settings\Application:'Cont.Tcontrol'

MENU\Settings\Application:'Cont.Tcontrol'

IDno.:

13054

13054

Recommended
setting:

OFF

ON

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OperatingGuideECLComfort310,applicationA377

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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OperatingGuideECLComfort310,applicationA377

Mountingonawall

Mountthebasepartonawallwithasmoothsurface.Establishthe
electricalconnectionsandpositionthecontrollerinthebasepart.
Securethecontrollerwiththelockingpin.

MountingonaDINrail(35mm)

MountthebasepartonaDINrail.Establishtheelectrical
connectionsandpositionthecontrollerinthebasepart.Secure
thecontrollerwiththelockingpin.

Theeasywaytolockthecontrollertoitsbaseorunlockitistousea
screwdriveraslever.

DismountingtheECLComfortcontroller

Inordertoremovethecontrollerfromthebasepart,pulloutthe
lockingpinbymeansofascrewdriver.Thecontrollercannowbe
removedfromthebasepart.

Theeasywaytolockthecontrollertoitsbaseorunlockitistousea
screwdriveraslever.

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2.3.2MountingtheRemoteControlUnitsECA30/31

Selectoneofthefollowingmethods:

•Mountingonawall,ECA30/31

•Mountinginapanel,ECA30

Screwsandrawlplugsarenotsupplied.

Mountingonawall

MountthebasepartoftheECA30/31onawallwithasmooth
surface.Establishtheelectricalconnections.PlacetheECA30/
31inthebasepart.

BeforeremovingtheECLComfortcontrollerfromthebasepart,ensure
thatthesupplyvoltageisdisconnected.

Mountinginapanel

MounttheECA30inapanelusingtheECA30framekit(ordercode
no.087H3236).Establishtheelectricalconnections.Securethe
framewiththeclamp.PlacetheECA30inthebasepart.TheECA
30canbeconnectedtoanexternalroomtemperaturesensor.

TheECA31mustnotbemountedinapanelifthehumidity
functionistobeused.

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OperatingGuideECLComfort310,applicationA377

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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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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OperatingGuideECLComfort310,applicationA377

Pt1000temperaturesensor(IEC751B,1000Ω/0°C)

Relationshipbetweentemperatureandohmicvalue:

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OperatingGuideECLComfort310,applicationA377

2.5Electricalconnections

2.5.1Electricalconnections230Va.c.

Warning

ElectricconductorsonPCB(PrintedCircuitBoard)forsupplyvoltage,
relaycontactsandtriacoutputsdonothavemutualsafetydistanceof
minimum6mm.Theoutputsarenotallowedtobeusedasgalvanic
separated(voltfree)outputs.

Ifagalvanicseparatedoutputisneeded,anauxiliaryrelayis
recommended.

24Voltcontrolledunits,forexampleactuators,aretobecontrolledby
meansofECLComfort310,24Voltversion.

SafetyNote

Necessaryassembly,start-up,andmaintenanceworkmustbe
performedbyqualifiedandauthorizedpersonnelonly.

Locallegislationsmustberespected.Thiscomprisesalsocablesize
andisolation(reinforcedtype).

AfusefortheECLComfortinstallationismax.10Atypically.

TheambienttemperaturerangefortheECLComfortinoperationis
0-55°C.Exceedingthistemperaturerangecanresultinmalfunctions.

Installationmustbeavoidedifthereisariskforcondensation(dew).

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OperatingGuideECLComfort310,applicationA377

Thecommongroundterminalisusedforconnectionofrelevant
components(pumps,motorizedcontrolvalves).

ECL210/310

ECL296

SeealsotheInstallationGuide(deliveredwiththeapplicationkey)
forapplicationspecificconnections.

Maximumloadratings:

Relayterminals

4(2)A/230Va.c.
(4Aforohmicload,2Afor
inductiveload)

Triac(=electronic

0,2A/230Va.c.

relay)terminals

Wirecrosssection:0.5-1.5mm²
Incorrectconnectioncandamagetheelectronicoutputs.
Max.2x1.5mm²wirescanbeinsertedintoeachscrewterminal.

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2.5.2Electricalconnections24Va.c.

SeealsotheInstallationGuide(deliveredwiththeapplicationkey)
forapplicationspecificconnections.

Maximumloadratings:

Relayterminals

Triac(=electronic
relay)terminals

4(2)A/24Va.c.
(4Aforohmicload,2Afor
inductiveload)

1A/24Va.c.

Donotconnect230Va.c.poweredcomponentstoa24Va.c.power
suppliedcontrollerdirectly.Useauxilliaryrelays(K)toseparate230
Va.c.from24Va.c.

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OperatingGuideECLComfort310,applicationA377

2.5.3Electricalconnections,safetythermostats,ingeneral

SeealsotheInstallationGuide(deliveredwiththeapplicationkey)
forapplicationspecificconnections.

WhenSTisactivatedbyahightemperature,thesafetycircuitinthe
motorizedcontrolvalveclosesthevalveimmediately.

WhenST1isactivatedbyahightemperature(theTRtemperature),the
motorizedcontrolvalveisclosedgradually.Atahighertemperature
(theSTtemperature),thesafetycircuitinthemotorizedcontrolvalve
closesthevalveimmediately.

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OperatingGuideECLComfort310,applicationA377

2.5.4Electricalconnections,Pt1000temperaturesensorsandsignals

SeetheInstallationGuide(deliveredwiththeapplicationkey)for
sensorandinputconnections.

A377:

Sen­sor

S1
S2Returntemperaturesensor

S3

S4

S5Returntemperaturesensor

S6

S7

S8

S9

(S9)

S10

Description

Outdoortemperaturesensor*

Flowtemperaturesensor**

Flowtemperaturesensor**

DHWtanktemperaturesensor,
upper***

Voltagesignal(0-10V)for
externalcontrolofdesiredflow
temperature,heatingcircuit1

A377.1,A377.2:
DHWtanktemperaturesensor,
lower

A377.3:
DHWcirculationreturn

A377.1,A377.3
DHWheating/charging
temperaturesensor**

A377.2
DHWheatingtemperaturesensor**

A377.1,A377.3:
AlternativepositionforDHW
heating/chargingtemperature
sensor**

A377.1,A377.3:
DHWreturntemperature
sensor****
Alternative:Supplytemperature
sensor

A377.2:
DHWchargingtemperature
sensor****

Type
(recomm.)

ESMT

ESM-11/ESMB/
ESMC/ESMU

ESM-11/ESMB/
ESMC/ESMU

ESM-11/ESMB/
ESMC/ESMU

ESM-11/ESMB/
ESMC/ESMU

ESMB/
ESMU

ESMB/
ESMU

ESM-11/ESMB/
ESMC/ESMU

ESM-11/ESMB/
ESMC/ESMU

ESM-11/ESMB/
ESMC/ESMU

ESM-11/ESMB/
ESMC/ESMU

*

Iftheoutdoortemperaturesensorisnotconnectedorthe
cableisshort-circuited,thecontrollerassumesthatthe
outdoortemperatureis0(zero)°C.

**

Thesensormustalwaysbeconnectedinordertohavethe
desiredfunctionality.Ifthesensorisnotconnectedorthe
cableisshort-circuited,themotorizedcontrolvalvecloses
(safetyfunction).

***

Thissensorisusedifonlyonetanktemperaturesensoris
required.

****

Thesensormustalwaysbeconnectedinordertohavethe
desiredfunctionality.

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OperatingGuideECLComfort310,applicationA377

Connectionofvoltagesignal(0–10V)forexternalcontrolof
desiredflowtemperature

Wirecrosssectionforsensorconnections:Min.0.4mm².
Totalcablelength:Max.200m(allsensorsincl.internalECL485

communicationbus)
Cablelengthsofmorethan200mmaycausenoisesensibility(EMC).

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2.5.5Electricalconnections,ECA30/31

Terminal
ECL

Terminal
ECA30/31

30
31

4

1
322
333

4

5

*

Afteranexternalroomtemperaturesensorhasbeenconnected,

Description

Twistedpair

Twistedpair

Ext.roomtemperature
sensor*

Type
(recomm.)

Cable2x
twistedpair

ESM-10

ECA30/31mustberepowered.

ThecommunicationtotheECA30/31mustbesetupintheECL
Comfortcontrollerin'ECAaddr.'

TheECA30/31mustbesetupaccordingly.

AfterapplicationsetuptheECA30/31isreadyafter2–5min.A
progressbarintheECA30/31isdisplayed.

Iftheactualapplicationcontainstwoheatingcircuits,itispossible
toconnectanECA30/31toeachcircuit.Theelectricalconnections
aredoneinparallel.

Max.2ECA30/31canbeconnectedtoanECLComfort310controller
ortoECLComfort210/296/310controllersinamaster-slavesystem.

SetupproceduresforECA30/31:Seesection‘Miscellaneous’ .

ECAinformationmessage:
‘Applicationreq.newerECA’:
Thesoftware(firmware)ofyourECAdoesnotcomplywiththe

software(firmware)ofyourECLComfortcontroller.Pleasecontact
yourDanfosssalesoffice.

Someapplicationsdonotcontainfunctionsrelatedtoactualroom
temperature.TheconnectedECA30/31willonlyfunctionasremote
control.

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OperatingGuideECLComfort310,applicationA377

2.5.6Electricalconnections,master/slavesystems

Thecontrollercanbeusedasmasterorslaveinmaster/slave
systemsviatheinternalECL485communicationbus(2xtwisted
paircable).

TheECL485communicationbusisnotcompatiblewiththeECL
businECLComfort110,200,300and301!

Totalcablelength:Max.200m(allsensorsincl.internalECL485
communicationbus).

Cablelengthsofmorethan200mmaycausenoisesensibility(EMC).

Terminal

Description

Type
(recomm.)

30

Commonterminal
+12V*,ECL485communicationbus

31

*OnlyforECA30/31andmaster/
slavecommunication

32

B,ECL485communicationbus

33

A,ECL485communicationbus

Cable2x
twistedpair

ECL485buscable

MaximumrecommendedlengthoftheECL485busiscalculatedlike
this:

Subtract"TotallengthofallinputcablesofallECLcontrollersinthe
master-slavesystem"from200m.

Simpleexamplefortotallengthofallinputcables,3xECL:

1xECL

3xECL

3xECLReturntemp.sensor:

3xECLRoomtemp.sensor:

Total:

Outdoortemp.sensor:

Flowtemp.sensor:

15m

18m

18m

30m

81m

2.5.7Electricalconnections,communication

Electricalconnections,Modbus

ECLComfort210:Non-galvanicisolatedModbusconnections
ECLComfort296:GalvanicisolatedModbusconnections
ECLComfort310:GalvanicisolatedModbusconnections

30|©Danfoss|2021.12

MaximumrecommendedlengthoftheECL485bus:
200-81m=119m

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