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Danfoss P370 Operating instructions

  • Hello! I'm your chat assistant. I've reviewed the provided Operating Guide for the Danfoss ECL Comfort 310 controller with application key P370, including details for the ECA 30, ECA 31 remote control units, and the ECA 32 I/O module. This document provides comprehensive information on installation, daily use, and settings of the device. I'm ready to answer any questions you have about the controller's features, operation, or any other aspects covered in the guide.
  • What is the purpose of the ECL Application Key P370?
    Can the ECL Comfort 310 controller be operated remotely?
    What type of communication does the ECL Comfort 310 controller support?
    What is the function of the Internal I/O module ECA 32?
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
©Danfoss|2023.04AQ437051327765en-010101|1
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.
AQ437051327765en-010101©Danfoss|2023.04|5
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.
AQ437051327765en-010101©Danfoss|2023.04|7
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.
8|©Danfoss|2023.04AQ437051327765en-010101
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|9
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.
AQ437051327765en-010101©Danfoss|2023.04|11
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.
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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
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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.
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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.
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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,applicationP370
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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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,applicationP370
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,applicationP370
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