Danfoss ECL Comfort 210 User manual

OperatingGuide
ECLComfort210/296/310,applicationA217/A317
1.0ableofContents
1.0ableofContents...............................................1
1.1Importantsafetyandproductinformation.....................2
2.0Installation........................................................5
2.1Beforeyoustart.....................................................5
2.2Identifyingthesystemtype......................................11
2.3Mounting...........................................................12
2.4Placingthetemperaturesensors................................16
2.5Electricalconnections.............................................18
2.6InsertingtheELApplicationKey..............................26
2.7hecklist............................................................32
2.8Navigation,ELApplicationKeyA217/A317................33
3.0Dailyuse.........................................................39
3.1Howtonavigate...................................................39
3.2Understandingthecontrollerdisplay..........................40
3.3Ageneraloverview:Whatdothesymbolsmean?...........42
3.4Monitoringtemperaturesandsystem
components........................................................43
3.5Influenceoverview................................................44
3.6Manualcontrol.....................................................45
3.7Schedule............................................................46
4.0Settingsoverview............................................47
5.0Settings...........................................................49
5.1IntroductiontoSettings..........................................49
5.2Tanktemperature..................................................50
5.3Flowtemperature..................................................54
5.4Returnlimit.........................................................55
5.5Flow/powerlimit.................................................60
5.6ontrolparameters................................................63
5.7Application.........................................................69
5.8Anti-bacteria........................................................76
5.9Alarm................................................................78
5.10Alarmoverview....................................................81
6.0Commoncontrollersettings..............................82
6.1Introductionto‘ommoncontrollersettings’................82
6.2Time&Date.........................................................83
6.3Holiday..............................................................84
6.4Inputoverview.....................................................86
6.5Log...................................................................87
6.6Outputoverride....................................................88
6.7Keyfunctions.......................................................89
6.8System...............................................................91
7.0Miscellaneous..................................................98
7.1Severalcontrollersinthesamesystem........................98
7.2Frequentlyaskedquestions....................................101
7.3Definitions........................................................103
7.4Type(ID6001),overview.......................................106
7.5ParameterIDoverview..........................................107
©Danfoss|2018.03VI.LG.U3.02|1

1.1Importantsafetyandproductinformation
1.1.1Importantsafetyandproductinformation
ThisInstallationGuideisassociatedwithELApplicationKeyA217
(ordercodeno.087H3807).
TheA217Keycontainstwosetsofapplications:oneset(A217.1/
A217.2/A217.3)andanotherset(A317.1/A317.2).
Thefunctionscanberealizedin:
ELomfort210(A217)forsimplesolutionsor
ELomfort310(A217/A317)foradvancedsolutions,e.g.M-bus,
ModbusandEthernet(Internet)communication.
TheapplicationsA217/A317complywithELomfortcontrollers
210/310asofsoftwareversion1.11(visibleatstart-upofthe
controllerandin‘ommoncontrollersettings’in‘System’).
AdditionaldocumentationforELomfort210and310,modules
andaccessoriesisavailableonhttp://heating.danfoss.com/.
SafetyNote
Toavoidinjuryofpersonsanddamagestothedevice,itisabsolutely
necessarytoreadandobservetheseinstructionscarefully.
Necessaryassembly,start-up,andmaintenanceworkmustbe
performedbyqualifiedandauthorizedpersonnelonly.
Locallegislationsmustberespected.Thiscomprisesalsocable
dimensionsandtypeofisolation(doubleisolatedat230V).
AfusefortheELomfortinstallationismax.10Atypically.
TheambienttemperaturerangesforELomfortinoperationare:
ELomfort210/310:0-55°
ELomfort296:0-45°.
Exceedingthetemperaturerangecanresultinmalfunctions.
Installationmustbeavoidedifthereisariskforcondensation(dew).
Thewarningsignisusedtoemphasizespecialconditionsthatshould
betakenintoconsideration.
Thissymbolindicatesthatthisparticularpieceofinformationshould
bereadwithspecialattention.
Applicationkeysmightbereleasedbeforealldisplaytextsare
translated.InthiscasethetextisinEnglish.
2|©Danfoss|2018.03VI.LG.U3.02
OperatingGuideECLComfort210/296/310,applicationA217/A317

Automaticupdateofcontrollersoftware(firmware):
Thesoftwareofthecontrollerisupdatedautomaticallywhenthekey
isinserted(asofcontrollerversion1.11(EL210/310)andversion
1.58(EL296)).Thefollowinganimationwillbeshownwhenthe
softwareisbeingupdated:
Progressbar
Duringupdate:
•DonotremovetheKEY
Ifthekeyisremovedbeforethehour-glassisshown,youhave
tostartafresh.
•Donotdisconnectthepower
Ifthepowerisinterruptedwhenthehour-glassisshown,the
controllerwillnotwork.
AsthisOperatingGuidecoversseveralsystemtypes,specialsystem
settingswillbemarkedwithasystemtype.Allsystemtypesareshown
inthechapter:'Identifyingyoursystemtype'.
°(degreeselsius)isameasuredtemperaturevaluewhereasK
(Kelvin)oftenisusedfortemperaturedifferences.
TheIDno.isuniquefortheselectedparameter.
ExampleFirstdigitSeconddigitLastthreedigits
1117411174
-ircuit1Parameterno.
1217412174
-ircuit2Parameterno.
IfanIDdescriptionismentionedmorethanonce,itmeansthatthere
arespecialsettingsforoneormoresystemtypes.Itwillbemarked
withthesystemtypeinquestion(e.g.12174-A266.9).
ParametersindicatedwithanIDno.like"1x607"meanauniversal
parameter.
xstandsforcircuit/parametergroup.
VI.LG.U3.02©Danfoss|2018.03|3
OperatingGuideECLComfort210/296/310,applicationA217/A317

DisposalNote
Thisproductshouldbedismantledanditscomponents
sorted,ifpossible,invariousgroupsbeforerecycling
ordisposal.
Alwaysfollowthelocaldisposalregulations.
4|©Danfoss|2018.03VI.LG.U3.02
OperatingGuideECLComfort210/296/310,applicationA217/A317

2.0Installation
2.1Beforeyoustart
Thetwoapplications,A217.1/A317.1arealmostidentical.
However,A317.1hassomeextrafunctionswhicharedescribed
separately.
TheapplicationsA217.1/A317.1areveryflexible.Thesearethe
basicprinciples:
DomesticHotWater(DHW):
Bymeansofaweekschedule(upto3‘omfort’periods/day),the
DHWcircuitcanbein‘omfort’or‘Saving’mode(twodifferent
temperaturevaluesforthedesiredDHWtemperatureatS6).
Theheating/chargingtemperaturesensorS3isthemost
importantsensor.
IfthemeasuredDHWtemperature(S6)getslowerthanthedesired
DHWtemperature,theDHWheating/chargingpump(P1)is
switchedON.
Themotorizedcontrolvalve(M1)iscontrolledinordertomaintain
theheating/chargingtemperatureatS3.Thistemperatureis
typically5–10degreeshigherthanthedesiredDHWtemperature.
Amax.valuecanbeset.
DHWtankwith1temperaturesensor(S6):
IfthemeasuredDHWtemperature(S6)getshigherthanthe
desiredDHWtemperature,theDHWheating/chargingpump(P1)
isswitchedOFF.Thepost-runtimecanbeset.
DHWtankwith2temperaturesensors(S6andS8):
IfthemeasuredDHWtemperature(S6)getshigherthanthedesired
DHWtemperatureandthelowertemperature(atS8)getshigher
thanthecut-outtemperature,theDHWheating/chargingpump
(P1)isswitchedOFF.Thepost-runtimecanbeset.
InchargingapplicationstheDHWcirculationcanbethrough
theDHWtank(connectionA)orthroughtheheat-exchanger
(connectionB).
ThesolutionwithconnectionAresultsinclosingofthemotorized
controlvalveaftertheDHWtankchargingprocedure.
ThesolutionwithconnectionBisusedtocompensateforthe
heatlossintheDHWcirculationpipe.Furthermore,afterDHW
tankcharging,thecirculationtemperature(atS3)iscontrolled
accordingtothedesiredDHWtemperature.
Thereturntemperature(S5)tothedistrictheatingsupplyshould
notbetoohigh.Ifso,thedesiredchargingtemperaturecanbe
adjusted(typicallytoalowervalue),thusresultinginagradual
closingofthemotorizedcontrolvalve.
Inboiler-basedheatingsupplythereturntemperatureshouldnot
betoolow(sameadjustmentprocedureasabove).
Thesupplytemperature,S2,isusedforadjustingtheproportional
band(Xp)inordertogiveastabletemperaturecontrol.
Ananti-bacteriafunctionisavailableforactivationonselected
daysoftheweek.
TheoutdoortemperaturesensorS1isusedtoprotectthe
circulationcircuitagainstfrost.
TheDHWcirculationpump(P3)hasaweekscheduleforupto3
ON-periodsperday.
TypicalA217.1./A317.1application:
Theshowndiagramisafundamentalandsimplifiedexampleanddoes
notcontainallcomponentsthatarenecessaryinasystem.
AllnamedcomponentsareconnectedtotheELomfortcontroller.
Listofcomponents:
S1Otdoortemperatresensor
S2Spplytemperatresensor
S3Chargingtemperatresensor
S5Retrntemperatresensor
S6DHWtanktemperatresensor,pper
S8DHWtanktemperatresensor,lower
P1DHWchargingpmp(DHWheatingpmp)
P3DHWcirclationpmp
M1Motorizedcontrolvalve
A1Relayotpt,alarm
VI.LG.U3.02©Danfoss|2018.03|5
OperatingGuideECLComfort210/296/310,applicationA217/A317

ApplicationA217.1(usedinECLComfort210)/A317.1(usedin
ECLComfort310)ingeneral:
ARemoteontrolUnit,theEA30,canbeconnectedinorderto
controltheELcontrollerremotely.
Aconnectedfloworenergymeter(inELomfort210itisbased
onpulsesignalsandinELomfort310basedonM-bussignal)
canlimitthefloworenergytoasetmaximum.
Unusedinputcan,bymeansofanoverrideswitch,beusedto
overridethescheduletoafixed'omfort'or'Saving'mode.
ModbuscommunicationtoaSADAsystemcanbeestablished.In
ELomfort310theM-busdatacanfurthermorebetransferred
totheModbuscommunication.
Alarmrelay(inELomfort210itisR4andinELomfort310R6)
canbeactivatediftheactualflowtemperatureatS3differsfrom
thedesiredDHWchargingtemperature.
A217.1/A317.1examplea:
A217.1/A317.1exampleb:
A217.1/A317.1examplec:
A217.1/A317.1exampled:
A217.1/A317.1examplee:
6|©Danfoss|2018.03VI.LG.U3.02
OperatingGuideECLComfort210/296/310,applicationA217/A317

Thetwoapplications,A217.2/A317.2arealmostidentical.
However,A317.2hassomeextrafunctionswhicharedescribed
separately.
TheapplicationsA217.2/A317.2areveryflexible.Thesearethe
basicprinciples:
DomesticHotWater(DHW):
Bymeansofaweekschedule(upto3‘omfort’periods/day),the
DHWcircuitcanbein‘omfort’or‘Saving’mode(twodifferent
temperaturevaluesforthedesiredDHWtemperatureatS6).
TheDHWheatingtemperaturesensorS3andthecharging
temperaturesensorS4arethemostimportantsensors.
IfthemeasuredDHWtemperature(S6)getslowerthanthedesired
DHWtemperature,theDHWheatingpump(P1)isswitchedON.The
motorizedcontrolvalve(M1)iscontrolledinordertomaintainthe
DHWheatingtemperatureatS3.TheDHWheatingtemperatureis
determinedbythedesiredDHWchargingtemperatureatS4.
WhentheDHWheatingtemperatureisreached,theDHWcharging
pumpP2isswitchedON.
IftheDHWchargingtemperatureatS4cannotbereached,the
ELcontrollergraduallyincreasesthedesiredDHWheating
temperatureatS3inordertoobtainthechargingtemperature.
Amax.valuecanbeset.
TheDHWchargingtemperatureatS4istypically5–10degrees
higherthanthedesiredDHWtemperature.
DHWtankwith1temperaturesensor(S6):
IfthemeasuredDHWtemperature(S6)getshigherthanthedesired
DHWtemperature,theDHWheatingpump(P1)andtheDHW
chargingpump(P2)areswitchedOFF.Thepost-runtimecanbeset.
DHWtankwith2temperaturesensors(S6andS8):
IfthemeasuredDHWtemperature(S6)getshigherthanthe
desiredDHWtemperatureandthelowertemperature(atS8)gets
higherthanthecut-outtemperature,theDHWheatingpump(P1)
andtheDHWchargingpump(P2)areswitchedOFF.Thepost-run
timecanbeset.
InchargingapplicationstheDHWcirculationcanbethrough
theDHWtank(connectionA)orthroughtheheat-exchanger
(connectionB).
ThesolutionwithconnectionAresultsinclosingofthemotorized
controlvalveaftertheDHWtankchargingprocedure.
ThesolutionwithconnectionBisusedtocompensatefortheheat
lossintheDHWcirculationpipe.
Furthermore,afterDHWtankcharging,thecirculationtemperature
(atS4)iscontrolledaccordingtothedesiredDHWtemperature.
TypicalA217.2./A317.2application:
Theshowndiagramisafundamentalandsimplifiedexampleanddoes
notcontainallcomponentsthatarenecessaryinasystem.
AllnamedcomponentsareconnectedtotheELomfortcontroller.
Listofcomponents:
S1Otdoortemperatresensor
S2Spplytemperatresensor
S3DHWheatingtemperatresensor
S4DHWchargingtemperatresensor
S5Retrntemperatresensor
S6DHWtanktemperatresensor,pper
S8DHWtanktemperatresensor,lower
P1DHWheatingpmp
P2DHWchargingpmp
P3DHWcirclationpmp
M1Motorizedcontrolvalve
A1Relayotpt,alarm
VI.LG.U3.02©Danfoss|2018.03|7
OperatingGuideECLComfort210/296/310,applicationA217/A317

Thereturntemperature(S5)tothedistrictheatingsupplyshould
notbetoohigh.Ifso,thedesiredchargingtemperaturecanbe
adjusted(typicallytoalowervalue),thusresultinginagradual
closingofthemotorizedcontrolvalve.
Inboiler-basedheatingsupplythereturntemperatureshouldnot
betoolow(sameadjustmentprocedureasabove).
Thesupplytemperature,S2,isusedforadjustingtheproportional
band(Xp)inordertogiveastabletemperaturecontrol.
Ananti-bacteriafunctionisavailableforactivationonselected
daysoftheweek.
TheoutdoortemperaturesensorS1isusedtoprotectthe
circulationcircuitagainstfrost.
TheDHWcirculationpump(P3)hasaweekscheduleforupto3
ON-periodsperday.
ApplicationA217.2(usedinECLComfort210)/A317.2(usedin
ECLComfort310)ingeneral:
ARemoteontrolUnit,theEA30,canbeconnectedinorderto
controltheELcontrollerremotely.
Aconnectedfloworenergymeter(inELomfort210itisbased
onpulsesignalsandinELomfort310basedonM-bussignal)
canlimitthefloworenergytoasetmaximum.
Unusedinputcan,bymeansofanoverrideswitch,beusedto
overridethescheduletoafixed'omfort'or'Saving'mode.
ModbuscommunicationtoaSADAsystemcanbeestablished.In
ELomfort310theM-busdatacanfurthermorebetransferred
totheModbuscommunication.
Alarmrelay(inELomfort210itisR4andinELomfort310R6)
canbeactivatediftheactualflowtemperatureatS3differsfrom
thedesiredDHWheatingtemperature.
A217.2/A317.2examplea:
A217.2/A317.2exampleb:
8|©Danfoss|2018.03VI.LG.U3.02
OperatingGuideECLComfort210/296/310,applicationA217/A317

TheapplicationA217.3isveryflexible.Thesearethebasic
principles:
DomesticHotWater(DHW),examplea:
Bymeansofaweekschedulee(upto3‘omfort’periods/day),the
DHWcircuitcanbein‘omfort’or‘Saving’mode(twodifferent
temperaturevaluesforthedesiredDHWtemperatureatS3).The
DHWtemperaturesensorS3isthemostimportantsensor.
IfthemeasuredDHWtemperature(S3)islowerthanthedesired
DHWtemperature,themotorizedcontrolvalve(M1)isopened
graduallyandviceversa.
Thereturntemperature(S5)tothedistrictheatingsupplyshould
notbetoohigh.Ifso,thedesiredflowtemperaturecanbeadjusted
(typicallytoalowervalue)thusresultinginagradualclosingofthe
motorizedcontrolvalve,i.e.thereturntemperaturewilldecrease.
Thecirculationpump,P1,iscontrolledbymeansofaseparateweek
schedule(upto3‘omfort’periods/day).
IfasupplytemperaturesensorS2isconnected,theproportional
bandXpisadaptedtotheactualsupplytemperatureinorderto
avoidcontrolinstability.
TypicalA217.3application,examplea:
Theshowndiagramisafundamentalandsimplifiedexampleanddoes
notcontainallcomponentsthatarenecessaryinasystem.
AllnamedcomponentsareconnectedtotheELomfortcontroller.
Listofcomponents:
S1Otdoortemperatresensor
S2Spplytemperatresensor
S3DHWspplytemperatresensor
S5Retrntemperatresensor
S8(Flowswitch—examplesb,c,d)
P1DHWcirclationpmp
M1Motorizedcontrolvalve
A1Relayotpt,alarm
VI.LG.U3.02©Danfoss|2018.03|9
OperatingGuideECLComfort210/296/310,applicationA217/A317

Exampleb:
Aflowswitchsignal(S8)canbeappliedinordertoheattheDHW
ondemand(DHWtapping/DHWdraw-off).Anidletemperature
forthesupplytemperature(atS2)canbemaintainedtominimize
theheat-uptimefortheDHW.
Examplec:
Aflowswitchsignal(S8)canbeappliedinordertoheattheDHW
ondemand(DHWtapping/DHWdraw-off).Thetemperatureat
S3ismaintainedduringthecomforttimesofthecirculationpump
P1.Anidletemperatureforthesupplytemperature(atS2)canbe
maintainedtominimizetheheat-uptimefortheDHW.
Exampled:
TheDHWtankisdirectlyheated.Thesettingofthereturn
temperaturelimitation(atS5)canavoidatoohighflowinthe
heatingcoil.Anidletemperatureforthesupplytemperature(at
S2)canbemaintainedtominimizetheheat-uptimefortheDHW.
A217.3examplea:
A217.3exampleb:
A217.3examplec:
A217.3exampled:
Thecontrollerispre-programmedwithfactorysettingsthatareshown
inthe‘ParameterIDoverview’appendix.
10|©Danfoss|2018.03VI.LG.U3.02
OperatingGuideECLComfort210/296/310,applicationA217/A317

2.2Identifyingthesystemtype
Sketchyourapplication
TheELomfortcontrollerseriesisdesignedforawiderange
ofheating,domestichot-water(DHW)andcoolingsystemswith
differentconfigurationsandcapacities.Ifyoursystemdiffers
fromthediagramsshownhere,youmaywanttomakeasketch
ofthesystemabouttobeinstalled.Thismakesiteasiertouse
theOperatingGuide,whichwillguideyoustep-by-stepfrom
installationtofinaladjustmentsbeforetheend-usertakesover.
TheELomfortcontrollerisauniversalcontrollerthatcanbe
usedforvarioussystems.Basedontheshownstandardsystems,
itispossibletoconfigureadditionalsystems.Inthischapteryou
findthemostfrequentlyusedsystems.Ifyoursystemisnotquite
asshownbelow,findthediagramwhichhasthebestresemblance
withyoursystemandmakeyourowncombinations.
SeetheInstallationGuide(deliveredwiththeapplicationkey)for
applicationtypes/sub-types.
Thecirculationpump(s)inheatingcircuit(s)canbeplacedintheflow
aswellasthereturn.Placethepumpaccordingtothemanufacturer’s
specification.
VI.LG.U3.02©Danfoss|2018.03|11
OperatingGuideECLComfort210/296/310,applicationA217/A317

2.3Mounting
2.3.1MountingtheECLComfortcontroller
SeetheInstallationGuidewhichisdeliveredtogetherwiththe
ELomfortcontroller.
Foreasyaccess,youshouldmounttheELomfortcontrollernear
thesystem.
ELomfort210/296/310canbemounted
•onawall
•onaDINrail(35mm)
ELomfort296canbemounted
•inapanelcut-out
ELomfort210canbemountedinanELomfort310basepart
(forfutureupgrade).
Screws,PGcableglandsandrawlplugsarenotsupplied.
LockingtheECLComfort210/310controller
InordertofastentheELomfortcontrollertoitsbasepart,secure
thecontrollerwiththelockingpin.
Topreventinjuriestopersonsorthecontroller,thecontrollerhasto
besecurelylockedintothebase.Forthispurpose,pressthelocking
pinintothebaseuntilaclickisheardandthecontrollernolonger
canberemovedfromthebase.
Ifthecontrollerisnotsecurelylockedintothebasepart,thereisarisk
thatthecontrollerduringoperationcanunlockfromthebaseandthe
basewithterminals(andalsothe230Va.c.connections)areexposed.
Topreventinjuriestopersons,alwaysmakesurethatthecontroller
issecurelylockedintoitsbase.Ifthisisnotthecase,thecontroller
shouldnotbeoperated!
12|©Danfoss|2018.03VI.LG.U3.02
OperatingGuideECLComfort210/296/310,applicationA217/A317

Theeasywaytolockthecontrollertoitsbaseorunlockitistousea
screwdriveraslever.
Mountingonawall
Mountthebasepartonawallwithasmoothsurface.Establishthe
electricalconnectionsandpositionthecontrollerinthebasepart.
Securethecontrollerwiththelockingpin.
MountingonaDINrail(35mm)
MountthebasepartonaDINrail.Establishtheelectrical
connectionsandpositionthecontrollerinthebasepart.Secure
thecontrollerwiththelockingpin.
DismountingtheECLComfortcontroller
Inordertoremovethecontrollerfromthebasepart,pulloutthe
lockingpinbymeansofascrewdriver.Thecontrollercannowbe
removedfromthebasepart.
Theeasywaytolockthecontrollertoitsbaseorunlockitistousea
screwdriveraslever.
VI.LG.U3.02©Danfoss|2018.03|13
OperatingGuideECLComfort210/296/310,applicationA217/A317

BeforeremovingtheELomfortcontrollerfromthebasepart,ensure
thatthesupplyvoltageisdisconnected.
2.3.2MountingtheRemoteControlUnitsECA30/31
Selectoneofthefollowingmethods:
•Mountingonawall,EA30/31
•Mountinginapanel,EA30
Screwsandrawlplugsarenotsupplied.
Mountingonawall
MountthebasepartoftheEA30/31onawallwithasmooth
surface.Establishtheelectricalconnections.PlacetheEA30/
31inthebasepart.
Mountinginapanel
MounttheEA30inapanelusingtheEA30framekit(ordercode
no.087H3236).Establishtheelectricalconnections.Securethe
framewiththeclamp.PlacetheEA30inthebasepart.TheEA
30canbeconnectedtoanexternalroomtemperaturesensor.
TheEA31mustnotbemountedinapanelifthehumidity
functionistobeused.
14|©Danfoss|2018.03VI.LG.U3.02
OperatingGuideECLComfort210/296/310,applicationA217/A317

2.3.3MountingtheinternalI/OmoduleECA32
MountingoftheinternalI/OmoduleECA32
TheEA32module(ordercodeno.087H3202)mustbeinserted
intotheELomfort310/310Bbasepartforadditionalinputand
outputsignalsinrelevantapplications.
TheconnectionbetweentheELomfort310/310BandEA32
isa10-pole(2x5)connector.Theconnectionisautomatically
establishedwhentheELomfort310/310Bisplacedonthe
basepart.
VI.LG.U3.02©Danfoss|2018.03|15
OperatingGuideECLComfort210/296/310,applicationA217/A317

2.4Placingthetemperaturesensors
2.4.1Placingthetemperaturesensors
Itisimportantthatthesensorsaremountedinthecorrectposition
inyoursystem.
Thetemperaturesensormentionedbelowaresensorsusedforthe
ELomfort210/296/310serieswhichnotallwillbeneeded
foryourapplication!
Outdoortemperaturesensor(ESM)
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,ESMandESMB-12:Useheatconductingpasteforquick
measurementofthetemperature.
ESMUandESMB-12:Usingasensorpockettoprotectthesensorwill,
however,resultinaslowertemperaturemeasurement.
16|©Danfoss|2018.03VI.LG.U3.02
OperatingGuideECLComfort210/296/310,applicationA217/A317

Pt1000temperaturesensor(IEC751B,1000Ω/0°C)Relationshipbetweentemperatureandohmicvalue:
VI.LG.U3.02©Danfoss|2018.03|17
OperatingGuideECLComfort210/296/310,applicationA217/A317

2.5Electricalconnections
2.5.1Electricalconnections230Va.c.
SafetyNote
Necessaryassembly,start-up,andmaintenanceworkmustbe
performedbyqualifiedandauthorizedpersonnelonly.
Locallegislationsmustberespected.Thiscomprisesalsocablesize
andisolation(reinforcedtype).
AfusefortheELomfortinstallationismax.10Atypically.
TheambienttemperaturerangefortheELomfortinoperationis
0-55°.Exceedingthistemperaturerangecanresultinmalfunctions.
Installationmustbeavoidedifthereisariskforcondensation(dew).
Thecommongroundterminalisusedforconnectionofrelevant
components(pumps,motorizedcontrolvalves).EL210/310
EL296
SeealsotheInstallationGuide(deliveredwiththeapplicationkey)
forapplicationspecificconnections.
18|©Danfoss|2018.03VI.LG.U3.02
OperatingGuideECLComfort210/296/310,applicationA217/A317

Wirecrosssection:0.5-1.5mm²
Incorrectconnectioncandamagetheelectronicoutputs.
Max.2x1.5mm²wirescanbeinsertedintoeachscrewterminal.
Maximumloadratings:
Relayterminals4(2)A/230Va.c.
(4Aforohmicload,2Afor
inductiveload)
Triac(=electronic
relay)terminals
0,2A/230Va.c.
VI.LG.U3.02©Danfoss|2018.03|19
OperatingGuideECLComfort210/296/310,applicationA217/A317

2.5.2Electricalconnections24Va.c.
SeealsotheInstallationGuide(deliveredwiththeapplicationkey)
forapplicationspecificconnections.
Maximumloadratings:
Relayterminals4(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.
20|©Danfoss|2018.03VI.LG.U3.02
OperatingGuideECLComfort210/296/310,applicationA217/A317