Danfoss ECL Comfort 310, A367 Operating instructions

OperatingGuide

ECLComfort310,applicationA367

1.0TableofContents

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

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

2.0Installation........................................................5

2.1Beforeyoustart.....................................................5

2.2Identifyingthesystemtype......................................10

2.3Mounting...........................................................11

2.4Placingthetemperaturesensors................................15

2.5Electricalconnections.............................................17

2.6InsertingtheECLApplicationKey..............................25

2.7Checklist............................................................31

2.8Navigation,ECLApplicationKeyA367.........................32

3.0Dailyuse.........................................................35

3.1Howtonavigate...................................................35

3.2Understandingthecontrollerdisplay..........................36

3.3Ageneraloverview:Whatdothesymbolsmean?...........40

3.4Monitoringtemperaturesandsystem

components........................................................41

3.5Inﬂuenceoverview................................................42

3.6Manualcontrol.....................................................43

3.7Schedule............................................................44

4.0Settingsoverview............................................45

5.0Settings...........................................................48

5.1IntroductiontoSettings..........................................48

5.2Flowtemperature..................................................49

5.3Roomlimit..........................................................53

5.4Returnlimit.........................................................55

5.5Flow/powerlimit.................................................62

5.6Optimization........................................................67

5.7Controlparameters................................................74

5.8Application.........................................................78

5.9Heatcut-out........................................................88

5.10Tanktemperature..................................................91

5.11Alarm................................................................96

5.12Alarmoverview....................................................99

5.13Anti-bacteria......................................................100

6.0Commoncontrollersettings............................102

6.1Introductionto‘Commoncontrollersettings’..............102

6.2Time&Date.......................................................103

6.3Holiday............................................................104

6.4Inputoverview...................................................106

6.5Log.................................................................107

6.6Outputoverride..................................................108

6.7Keyfunctions.....................................................109

6.8System.............................................................111

7.0Miscellaneous................................................118

7.1ECA30/31setupprocedures.................................118

7.2Overridefunction................................................126

7.3Severalcontrollersinthesamesystem......................129

7.4Frequentlyaskedquestions....................................132

7.5Deﬁnitions........................................................135

7.6Type(ID6001),overview.......................................138

7.7ParameterIDoverview..........................................139

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1.1Importantsafetyandproductinformation

1.1.1Importantsafetyandproductinformation

ThisInstallationGuideisassociatedwithECLApplicationKeyA367

(ordercodeno.087H3813).

ThefunctionscanberealizedinECLComfort310whichincludes

M-bus,ModbusandEthernet(Internet)communication.

TheapplicationsA367.1andA367.2complywithECLComfort

controller310asofsoftwareversion1.11(visibleatstart-upofthe

controllerandin‘Commoncontrollersettings’in‘System’).

AdditionaldocumentationforECLComfort310,modulesand

accessoriesisavailableonhttp://heating.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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OperatingGuideECLComfort310,applicationA367

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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OperatingGuideECLComfort310,applicationA367

ParametersindicatedwithanIDno.like"1x607"meanauniversal

parameter.

xstandsforcircuit/parametergroup.

DisposalNote

Thisproductshouldbedismantledanditscomponents

sorted,ifpossible,invariousgroupsbeforerecycling

ordisposal.

Alwaysfollowthelocaldisposalregulations.

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2.0Installation

2.1Beforeyoustart

Thetwoapplications,A367.1andA367.2arealmostidentical.

However,A367.2hassomeextrafunctionswhicharedescribed

separately.

Theapplicationsareveryﬂexible.Thesearethebasicprinciples:

Heating(circuit1):

Typically,theﬂowtemperatureisadjustedaccordingtoyour

requirements.TheﬂowtemperaturesensorS3isthemost

importantsensor.ThedesiredﬂowtemperatureatS3iscalculated

intheECLcontroller,basedontheoutdoortemperature(S1).

Thelowertheoutdoortemperature,thehigherthedesiredﬂow

temperature.Bymeansofaweekschedule(upto3‘Comfort’

periods/day),theheatingcircuit1canbein‘Comfort’or

‘Saving’mode(twodifferenttemperaturevaluesfordesiredroom

temperature).

ThemotorizedcontrolvalveM1isopenedgraduallywhenthe

ﬂowtemperatureislowerthanthedesiredﬂowtemperatureand

viceversa.

Thereturntemperature(S5)tothedistrictheatingsupplyshould

notbetoohigh.Ifso,thedesiredﬂowtemperaturecanbeadjusted

(typicallytoalowervalue),thusresultinginagradualclosingofthe

motorizedcontrolvalve.

Inboiler-basedheatingsupplythereturntemperatureshouldnot

betoolow(sameadjustmentprocedureasabove).

Furthermore,thereturntemperaturelimitationcandepend

ontheoutdoortemperature.Typically,thelowertheoutdoor

temperature,thehighertheacceptedreturntemperature.

Ifthemeasuredroomtemperature(S7)doesnotequalthedesired

roomtemperature,thedesiredﬂowtemperaturecanbeadjusted.

Thecirculationpump(P1)isONatheatdemandoratfrost

protection.Thecirculationpump(P1)isswitchedOFFwhen

heatingtheDHW.Ifthesystemhasachangeovervalve(P2/M3)

betweentheheatingandDHWcircuit,thecirculationpump(P1)

isONwhenheatingtheDHW.

TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis

higherthanaselectablevalue.

TypicalA367application:

Theshowndiagramisafundamentalandsimpliﬁedexampleanddoes

notcontainallcomponentsthatarenecessaryinasystem.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:

S1

Outdoortemperaturesensor

S2

Returntemperaturesensor,circuit2

S3

Flowtemperaturesensor,circuit1

S4

Flowtemperaturesensor,circuit2

S5

Returntemperaturesensor,circuit1

S6

DHWtanktemperaturesensor,upper

S7

Roomtemperaturesensor,circuit1

S8

DHWtanktemperaturesensor,lower

S9

Roomtemperaturesensor,circuit2

P1

Circulationpump,heating,circuit1

P2

DHWheatingpump,circuit3

P3

DHWcirculationpump,circuit3

P5

Circulationpump,heating,circuit2

M1

Motorizedcontrolvalve,circuit1andDHW

M2

Motorizedcontrolvalve,circuit2

(M3)

(Changeovervalve,circuit1,heating/DHW)

R6

Relayoutput,alarm

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OperatingGuideECLComfort310,applicationA367

Heating(circuit2):

Thiscircuitworksaftersameprinciplesascircuit1.

TheﬂowtemperaturesensorS4isthemostimportantsensor.

Bymeansofaweekschedule(upto3‘Comfort’periods/day),the

heatingcircuit2canbein‘Comfort’or‘Saving’mode(twodifferent

temperaturevaluesfordesiredroomtemperature).Themotorized

controlvalveM2controlsthecircuit.

Thereturntemperature(S2)enableslimitationasdescribed

previously.

IfthemeasuredroomtemperatureS9(S7inA367.2)doesnot

equalthedesiredroomtemperature,thedesiredﬂowtemperature

canbeadjusted.

Thecirculationpump(P5)isONatheatdemandoratfrost

protection.

TheheatingcanbeswitchedOFFwhentheoutdoortemperatureis

higherthanaselectablevalue.

Heatingcircuit2canbeconnectedafterheatingcircuit1.Ifso,the

desiredﬂowtemperatureatS3canbeinﬂuencedbythedesired

ﬂowtemperatureatS4.

A367.2heatingcircuit1and2:

Theheatingcircuit1and2canusethesameroomtemperature

sensor(S7).However,eachheatingcircuitcanhaveanECA30,

RemoteControlUnit,inordertohaveseparateroomtemperature

signals.Anothersolution:UseS7foroneoftheheatingcircuitsand

ECA30fortheotherheatingcircuit.

A367.1examplea:

A367.1exampleb:

A367.1examplec:

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DomesticHotWater(DHW,circuit3):

Bymeansofaweekschedule(upto3Comfortperiods/day),the

DHWcircuitcanbein‘Comfort’or‘Saving’mode(twodifferent

temperaturevaluesfordesiredDHWtemperature).

A367.1:

IfthemeasuredDHWtemperature(S6)islowerthanthedesired

DHWtemperature,theheatingcirculationpump(P1)isswitched

OFFandtheDHWheatingpump(P2)isswitchedON.The

motorizedcontrolvalve(M1)iscontrolledinordertomaintainthe

DHWheatingtemperatureatS3.

TheDHWheatingtemperatureistypically10-15degreeshigher

thanthedesiredDHWtemperature.

DHWtankwith1temperaturesensor:

WhenthemeasuredDHWtemperature(S6)getshigherthanthe

desiredDHWtemperature,theDHWheatingpump(P2)isswitched

OFF.Apost-runtimecanbeset.Themotorizedcontrolvalve(M1)

willhereaftermaintainthedesiredﬂowtemperatureintheheating

circuit.

DHWtankwith2temperaturesensors:

WhenthemeasuredDHWtemperature(S6)getshigherthanthe

desiredDHWtemperatureandthelowertemperature(atS8)gets

higherthanthecut-outtemperature,theDHWheatingpump(P2)

isswitchedOFF.Apost-runtimecanbeset.Themotorizedcontrol

valve(M1)willhereaftermaintainthedesiredﬂowtemperaturein

theheatingcircuit.

A367.1exampled:

A367.1examplee:

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OperatingGuideECLComfort310,applicationA367

A367.2:

IfthemeasuredDHWtemperature(S6)islowerthanthedesired

DHWtemperature,theheatingcirculationpump(P1)isswitched

OFFandtheDHWpump(P2)isswitchedON.Themotorizedcontrol

valve(M1)iscontrolledinordertomaintaintheDHWheating

temperatureatS3.

TheDHWheatingtemperatureisdeterminedbythedesiredDHW

chargingtemperatureatS9.WhentheDHWheatingtemperature

isreached,(ormax.3minutesafterDHWheatingdemand),the

DHWchargingpumpP4isswitchedON.

TheDHWchargingtemperatureistypically5-10degreeshigher

thanthedesiredDHWtemperature.

IftheDHWchargingtemperatureatS9cannotbereached,the

ECLcontrollergraduallyincreasesthedesiredDHWheating

temperatureatS3inordertoobtainthechargingtemperature.

Amax.valuecanbeset.

DHWtankwith1temperaturesensor:

WhenthemeasuredDHWtemperature(S6)getshigherthanthe

desiredDHWtemperature,theDHWpump(P2)andDHWcharging

pump(P4)areswitchedOFF.Post-runtimescanbeset.The

motorizedcontrolvalve(M1)willhereaftermaintainthedesired

ﬂowtemperatureintheheatingcircuit.

DHWtankwith2temperaturesensors:

WhenthemeasuredDHWtemperature(S6)getshigherthanthe

desiredDHWtemperatureandthelowertemperature(atS8)gets

higherthanthecut-outtemperature,theDHWpump(P2)and

DHWchargingpump(P4)areswitchedOFF.Post-runtimescanbe

set.Themotorizedcontrolvalve(M1)willhereaftermaintainthe

desiredﬂowtemperatureintheheatingcircuit.

TypicalA367.2application:

Theshowndiagramisafundamentalandsimpliﬁedexampleanddoes

notcontainallcomponentsthatarenecessaryinasystem.

AllnamedcomponentsareconnectedtotheECLComfortcontroller.

Listofcomponents:

S1

Outdoortemperaturesensor

S2

Returntemperaturesensor,circuit2

S3

Flowtemperaturesensor,circuit1

S4

Flowtemperaturesensor,circuit2

S5

Returntemperaturesensor,circuit1

S6

DHWtanktemperaturesensor,upper

S7Roomtemperaturesensor,circuit1/2

S8

DHWtanktemperaturesensor,lower

S9

DHWchargingtemperaturesensor,circuit3

P1

Circulationpump,heating,circuit1

P2

DHWheatingpump,circuit3

P3

DHWcirculationpump,circuit3

P4

DHWchargingpump,circuit3

P5

Circulationpump,heating,circuit2

M1

Motorizedcontrolvalve,circuit1andDHW

M2

Motorizedcontrolvalve,circuit2

(M3)

(Changeovervalve,circuit1,heating/DHW)

R6

Relayoutput,alarm

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OperatingGuideECLComfort310,applicationA367

DHWcircuit,ingeneral:

Iftheinstallationhasachangeovervalve(P2/M3),alsocalled

priority-valve,betweentheheatingandtheDHWcircuits,the

changeovervalveisactivatedatDHWheatingdemand.The

circulationpump(P1)isONwhenheatingtheDHW.

Parallelmodeintwo-pumpapplications:

IftheDHWheatingtemperaturehasavalueclosetothedesired

ﬂowtemperatureintheheatingcircuit,thecirculationpump(P1)in

theheatingcircuitwillnotbeswitchedOFFduringDHWheating.

Thereturntemperature(S5),whentheDHWheatingisactive,can

belimitedtoaﬁxedvalue.

Ananti-bacteriafunctionisavailableforactivationonselected

daysoftheweek.

A367.1only:TheDHWcircuitcanbeconnectedprimarilyandthe

valve‘P2/M3’operatesasON/OFFvalve.

TheDHWcirculationpump(P3)hasaweekscheduleforupto3

ON-periods/day.

A367.2examplea:

A367.2exampleb:

A367.2examplec:

Thecontrollerispre-programmedwithfactorysettingsthatareshown

inthe‘ParameterIDoverview’appendix.

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OperatingGuideECLComfort310,applicationA367

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,applicationA367

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,applicationA367

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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OperatingGuideECLComfort310,applicationA367

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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OperatingGuideECLComfort310,applicationA367

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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OperatingGuideECLComfort310,applicationA367

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,applicationA367

Pt1000temperaturesensor(IEC751B,1000Ω/0°C)

Relationshipbetweentemperatureandohmicvalue:

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OperatingGuideECLComfort310,applicationA367

2.5Electricalconnections

2.5.1Electricalconnections230Va.c.

SafetyNote

Necessaryassembly,start-up,andmaintenanceworkmustbe

performedbyqualiﬁedandauthorizedpersonnelonly.

Locallegislationsmustberespected.Thiscomprisesalsocablesize

andisolation(reinforcedtype).

AfusefortheECLComfortinstallationismax.10Atypically.

TheambienttemperaturerangefortheECLComfortinoperationis

0-55°C.Exceedingthistemperaturerangecanresultinmalfunctions.

Installationmustbeavoidedifthereisariskforcondensation(dew).

Thecommongroundterminalisusedforconnectionofrelevant

components(pumps,motorizedcontrolvalves).

ECL210/310

ECL296

SeealsotheInstallationGuide(deliveredwiththeapplicationkey)

forapplicationspeciﬁcconnections.

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OperatingGuideECLComfort310,applicationA367

Wirecrosssection:0.5-1.5mm²

Incorrectconnectioncandamagetheelectronicoutputs.

Max.2x1.5mm²wirescanbeinsertedintoeachscrewterminal.

Maximumloadratings:

Relayterminals

4(2)A/230Va.c.

(4Aforohmicload,2Afor

inductiveload)

Triac(=electronic

relay)terminals

0,2A/230Va.c.

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OperatingGuideECLComfort310,applicationA367

2.5.2Electricalconnections24Va.c.

SeealsotheInstallationGuide(deliveredwiththeapplicationkey)

forapplicationspeciﬁcconnections.

Maximumloadratings:

Relayterminals

4(2)A/24Va.c.

(4Aforohmicload,2Afor

inductiveload)

Triac(=electronic

relay)terminals

1A/24Va.c.

Donotconnect230Va.c.poweredcomponentstoa24Va.c.power

suppliedcontrollerdirectly.Useauxilliaryrelays(K)toseparate230

Va.c.from24Va.c.

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OperatingGuideECLComfort310,applicationA367

2.5.3Electricalconnections,safetythermostats,ingeneral

SeealsotheInstallationGuide(deliveredwiththeapplicationkey)

forapplicationspeciﬁcconnections.

WhenSTisactivatedbyahightemperature,thesafetycircuitinthe

motorizedcontrolvalveclosesthevalveimmediately.

WhenST1isactivatedbyahightemperature(theTRtemperature),the

motorizedcontrolvalveisclosedgradually.Atahighertemperature

(theSTtemperature),thesafetycircuitinthemotorizedcontrolvalve

closesthevalveimmediately.

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OperatingGuideECLComfort310,applicationA367

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Danfoss ECL Comfort 310, A367 Operating instructions

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