Danfoss Termix Solar A+/B+ Operating instructions

Brand: Danfoss

Model: Termix Solar A+/B+

Type: Operating instructions

OperatingGuide

TermixSolarA+/B+

1.0TableofContents

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

........................................................................2

2.0Functionaldescription......................................3

3.0Safetynotes.....................................................4

3.1SafetyNotes–general............................................4

4.0Mounting........................................................5

4.1Mounting...........................................................5

4.2Electricalconnections.............................................7

5.0Design.............................................................8

5.1Design...............................................................8

5.2Schematicdiagram................................................9

5.3Design...............................................................10

5.4Schematicdiagram................................................11

6.0Controls..........................................................12

6.1DHWtemperaturecontrol........................................12

6.2Maintenance........................................................14

7.0Troubleshooting..............................................15

7.1Troubleshootingingeneral......................................15

7.2TroubleshootingDHW............................................15

7.3Disposal.............................................................16

8.0Declaration......................................................19

8.1Declarationofconformity........................................19

DanfossDistrictEnergy

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OperatingGuideTermixSolarA+/B+

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2.0Functionaldescription

Domestichotwatermodulewithheatexchangerand

thermostaticcontrol.Designedforwall-mounting.

Application

TheTermixSolarA+/B+isaninstantaneouswaterheater,featuring

superbheatextractionandhighperformance.TheTermixSolar

A+/B+isapplicableforheatingsystemswithbufferaccumulators,

solarsystemsorforotherheatsources,whereaverylowreturn

temperatureispreferred.Thelargeheatexchangercoolsoutthe

waterintheprimaryreturnlineveryefciently,therebycreatinga

verygoodoperationeconomy.Aowswitchinthedomestichot

waterpipeiscontrollingtheprimaryheatingpump.Anoptional

circulationpumptogetherwithathermostatcanmaintainthe

circulatingtemperatureatadesiredtemperature.

Domestichotwater(DHW)

Thedomestichotwaterispreparedintheheatexchangerandthe

temperatureisregulatedwithathermostaticcontrolvalve.There

isnoadditionalpressurelossonthesecondarysideoftheDHW

heatexchangerwithathermostaticcontrol.Thereforethistypeof

regulationcanbeusedbylowpressureinthecoldwatermains.

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3.0Safetynotes

3.1SafetyNotes–general

Thefollowinginstructionsrefertothestandarddesignof

substation.Specialversionsofsubstationsareavailableon

request.

Thisoperatingmanualshouldbereadcarefullybeforeinstallation

andstart-upofthesubstation.Themanufactureracceptsno

liabilityfordamageorfaultsthatresultfromnon-compliancewith

theoperatingmanual.Pleasereadandfollowalltheinstructions

carefullytopreventaccidents,injuryanddamagetoproperty.

Assembly,start-upandmaintenanceworkmustbeperformedby

qualiedandauthorizedpersonnelonly.

Pleasecomplywiththeinstructionsissuedbythesystem

manufacturerorsystemoperator.

Corrosionprotection

Allpipesandcomponentsaremadeofstainlesssteelandbrass.

Themaximumchloridecompoundsoftheowmediumshouldnot

behigherthan150mg/l.

Theriskofequipmentcorrosionincreasesconsiderablyifthe

recommendedlevelofpermissiblechloridecompoundsis

exceeded.

Energysource

Thesubstationisdesignedfordistrictheatingastheprimary

sourceofenergy.However,alsootherenergysourcescanbeused

wheretheoperatingconditionsallowitandalwaysarecomparable

todistrictheating.

Application

Thesubstationisdesignedtobeconnectedtothehouse

installationinafrost-freeroom,wherethetemperaturedoesnot

exceed50°Candthehumiditydoesnotexceed60%.Donotcover

orwallupthesubstationorinanyotherwayblocktheentrance

tothestation.

Choiceofmaterial

Choiceofmaterialsalwaysincompliancewithlocallegislation.

Safetyvalve(s)

Werecommendmountingofsafetyvalve(s),however,alwaysin

compliancewithlocalregulations.

Connection

Thesubstationmustbeequippedwithfeaturesthatensurethat

thesubstationcanbeseparatedfromallenergysources(also

powersupply).

Emergency

Incaseofdangeroraccidents-re,leaksorotherdangerous

circumstances-interruptallenergysourcestothestationif

possible,andseekexperthelp.

Incaseofdiscolouredorbad-smellingdomestichotwater,closeall

shut-offvalvesonthesubstation,informtheoperatingpersonnel

andcallforexperthelpimmediately.

Storage

Anystorageofthesubstationwhichmaybenecessarypriorto

installationshouldbeinconditionswhicharedryandheated.

Authorizedpersonnelonly

Assembly,start-upandmaintenanceworkmustbeperformedby

qualiedandauthorizedpersonnelonly.

Pleaseobserveinstructionscarefully

Toavoidinjurytopersonsanddamagetothedevice,itisabsolutely

necessarytoreadandobservetheseinstructionscarefully.

Warningofhighpressureandtemperature

Beawareoftheinstallation’spermissiblesystempressureand

temperature.

Themaximumtemperatureoftheowmediuminthesubstationis

120°C.

Themaximumoperatingpressureofthesubstationis10bar.PN16

versionsareavailableonenquiry.

Theriskofpersonsbeinginjuredandequipmentdamagedincreases

considerablyiftherecommendedpermissibleoperatingparameters

areexceeded.

Thesubstationinstallationmustbeequippedwithsafetyvalves,

however,alwaysinaccordancewithlocalregulations.

Warningofhotsurface

Thesubstationhasgothotsurfaces,whichcancauseskinburns.

Pleasebeextremelycautiousincloseproximitytothesubstation.

Powerfailurecanresultinthemotorvalvesbeingstuckinopen

position.Thesurfacesofthesubstationcangethot,whichcancause

skinburns.Theballvalvesondistrictheatingsupplyandreturnshould

beclosed.

Warningoftransportdamage

Beforesubstationinstallation,pleasemakesurethatthesubstation

hasnotbeendamagedduringtransport.

IMPORTANT-Tighteningofconnections

Duetovibrationsduringtransportallangeconnections,screwjoints

andelectricalclampandscrewconnectionsmustbecheckedand

tightenedbeforewaterisaddedtothesystem.Afterwaterhasbeen

addedtothesystemandthesystemhasbeenputintooperation,

re-tightenALLconnections.

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4.0Mounting

4.1Mounting

Installationmustbeincompliancewithlocalstandardsand

regulations.

Districtheating(DH)-Inthefollowingsections,DHreferstothe

heatsourcewhichsuppliesthesubstations.Avarietyofenergy

sources,suchasoil,gasorsolarpower,couldbeusedasthe

primarysupplytoDanfosssubstations.Forthesakeofsimplicity,

DHcanbetakentomeantheprimarysupply.

Connections:

1.BufferTank(BT)supply

2.Domestichotwater(DHW)

3.BufferTank(BT)return

4.Domesticcoldwater(DCW)

5.Hotwatercirculation(HWC)-(Optional)

Connectionsizes:

BT:

G¾”(int.thread)

DCW+DHW+HWC:

G¾”(int.thread)

Dimensions(mm):

Withoutcirculationandcover:

H655xW440xD138

Withoutcirculationandwithcover:

H715xW450xD150

Withcirculationandwithoutcover:

H940xW440xD138

Withcirculationandcover:

H940xW450xD150

Weight(approx.):

BrazedHEX(A+):

14kg

GasketedHEX(B+):

17kg

Authorizedpersonnelonly

Assembly,start-upandmaintenanceworkmustbeperformedby

qualiedandauthorizedpersonnelonly.

Thepipeplacementcandeviatefromtheshowndrawing.Pleasenote

themarkingsonthestation.

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4.1.1Installation

Mounting:

Adequatespace

Pleaseallowadequatespacearoundthesubstationformounting

andmaintenancepurposes.

Orientation

Thestationmustbemountedsothatcomponents,keyholes

andlabelsareplacedcorrectly.Ifyouwishtomountthestation

differentlypleasecontactyoursupplier.

Drillings

Wheresubstationsaretobewall-mounted,drillingsareprovided

inthebackmountingplate.Floormountedunitshavesupport.

Labelling

Eachconnectiononthesubstationislabelled.

Beforeinstallation:

Cleanandrinse

Priortoinstallation,allsubstationpipesandconnectionsshouldbe

cleanedandrinsed.

Tightening

Duetovibrationduringtransport,allsubstationconnectionsmust

becheckedandtightenedbeforeinstallation.

Unusedconnections

Unusedconnectionsandshut-offvalvesmustbesealedwitha

plug.Shouldtheplugsrequireremoval,thismustonlybedoneby

anauthorizedservicetechnician.

Installation:

Strainer

Ifastrainerissuppliedwiththestationitmustbettedaccording

toschematicdiagram.Pleasenotethatthestrainermaybe

suppliedloose.

Connections

Internalinstallationanddistrictheatingpipesconnectionsmustbe

madeusingthreaded,angedorweldedconnections.

Keyholeformounting.

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4.2Electricalconnections

Beforemakingelectricalconnections,pleasenotethe

following:

Safetynotes

Pleasereadtherelevantpartsofthesafetynotes.

230V

Thesubstationmustbeconnectedto230VACandearth.

Potentialbonding

Potentialbondingshouldbecarriedoutaccording

to60364-4-41:2007andIEC60364-5-54:2011.

Bondingpointonthemountingplatebelowrightcornermarked

withearthsymbol.

Disconnection

Thesubstationmustbeelectricallyconnectedsothatitcanbe

disconnectedforrepairs.

Outdoortemperaturesensor

Outdoorsensorsshouldbemountedsoastoavoidexposureto

directsunlight.Theyshouldnotbeplacedclosetodoors,windows

orventilationoutlets.

Theoutdoorsensormustbeconnectedtothestationonthe

terminalblockundertheelectroniccontrol.

Authorizedelectrician

Electricalconnectionsmustbemadebyanauthorizedelectricianonly.

Localstandards

Electricalconnectionsmustbemadeinaccordancewithcurrent

regulationsandlocalstandards.

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5.0Design

5.1Design

5.1.1DesignTermixSolarA+/B+

Yoursubstationmightlookdifferentthanthesubstationshown.

Designdescription

Heatexchanger,DHW

Chargingpump

Electricalwiringbox

Tobeorderedseparately

Thermostaticcontroller,DHW

Ballvalve/non-returnvalve

Flowswitch

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5.2Schematicdiagram

5.2.1SchematicdiagramTermixSolarA+/B+

Supply

DHW

Return

DCW

Yoursubstationmightlookdifferentthantheschematicdiagramshown.

Schematicdescriptionwithoutcirculation

Heatexchanger,DHW

Ballvalve,DVGW

Tobeorderedseparately

Electricalwiringbox

Thermostaticvalve

Ballvalve/non-returnvalve

Ballvalve

Chargingpump

Flowswitch

DHW:DomesticHotWater

DCW:

DomesticColdWater

BTSupply:

Buffertanksupply

BTReturn:

Buffertankreturn

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5.3Design

5.3.1DesignTermixSolarA+/B+withcirculation

Yoursubstationmightlookdifferentthanthesubstationshown.

Designdescription

Heatexchanger,DHW

Thermostaticcontroller,DHW

Tobeorderedseparately

Electricalwiringbox

11A

DHWpump,withbuiltincheckvalve

Ballvalve/non-returnvalve

Singlecheckvalve

Chargingpump

Flowswitch

Safetyvalve

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5.4Schematicdiagram

5.4.1SchematicdiagramTermixSolarA+/B+withcirculation

DHW

Supply

DCW

Return

HWC

Yoursubstationmightlookdifferentthantheschematicdiagramshown.

Schematicdescriptionwithcirculation

Heatexchanger,DHW

Singlecheckvalve

Chargingpump

Electricalwiringbox

Safetyvalve

Tobeorderedseparately

Ballvalve

Thermostaticvalve

Ballvalve/non-returnvalve

Ballvalve,DVGW

11A

DHWpump,withbuiltincheckvalve

Flowswitch

DHW:DomesticHotWater

DCW:

DomesticColdWater

HWC:

HotWaterCirculation

BTSupply:

Buffertanksupply

BTReturn:

Buffertankreturn

5.4.2Technicalparameters

Technicalparameters

Nominalpressure:

PN10

Max.DHsupplytemperature:

120°C

Min.DCWstaticpressure:

0.5bar

BrazedHEX(A+):

Brazingmaterial(HEX):

Copper

Heatexchangerstestpressure:30bar

GasketedHEX(B+):

Gasketmaterial(HEX):

EPDMper.

Heatexchangerstestpressure:13bar

Soundlevel:≤55dB

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6.0Controls

6.1DHWtemperaturecontrol

DHWtemperaturecontrol

TherearevarioustypesofDHWtemperaturecontrolusedin

Danfosssubstations.

DHWtemperatureshouldbeadjustedto45-50°C,asthisprovides

optimalutilisationofDHwater.AtDHWtemperaturesabove55°C,

thepossibilityoflimescaledepositsincreasessignicantly.

6.1.1AVTBcontroller(20–60°)

Thetemperaturesettingisasfollows:

1=20°C

2=35°C

3=50°C

4=60°C

5=70°C

Thevaluesareintendedasaguide.

TheAVTBoperatesatitsbestatDHsupplytemperaturesofupto

90°C.

Thermostaticcontrol

DHWtemperatureisadjustedasfollows:

Toincreasetemperature,turnthehandleonthethermostatic

controllertoselectahighernumber.

Todecreasetemperature,turnthehandleonthethermostatic

controllertoselectalowernumber.

6.1.2CirculatorpumpUPM3

UPM3Pumpscanbecontrolledinconstantpressure,proportional

pressureorconstantspeedmodedenedbythemeansofasmart

userinterface.

Thevariablespeedmodulatingmodesallowthepumptomatchits

performancetothesystemrequirements,helpingtoreducenoise

whenthermostaticvalvesareclosingdown.

EnergylabellingclassA

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6.1.3GrundfosUPM3AUTOLinstructions

Controlmode

Youcanswitchfromtheperformanceviewtothesettingsviewbypressingthepushbutton.Thesettingsviewshowswhichmode

controlsthecirculator.After2seconds,thedisplayswitchesbacktoperformanceview.

Ifyoupressthebuttonfor2to10seconds,theuserinterfaceswitchesto"settingselection"iftheuserinterfaceisunlocked.Youcan

changethesettingsastheyappear.Theselectionofthecontrolmodedependsonthesystemtypeandtheallocationofpressurelosses.

Ifyoupressthekeylockformorethan10seconds,youcantogglebetweenenabling/disablingthekeylockfunction.

Function

Recommendedfor

Green

YellowYellowYellowYellow

Proportionalpressure1

1-pipesystems

µµ

Proportionalpressure2

µµµ

Proportionalpressure3

2-pipesystems

µµµµ

Constantpressure1

Underoorheating

µµ

Constantpressure2

µµµ

Constantpressure3

µµµµ

ConstantCurve1

µµµ

ConstantCurve2

µµµµ

ConstantCurve3

µµµµµ

ConstantCurveMax.

µµµµ

Operationstatus

Function

Recommendedfor

Green

YellowYellowYellowYellow

Standby**OnlyPWMcontrolled

0%≤P1≤25%

µµ

25%≤P1≤50%

µµµ

50%≤P1≤75%

µµµµ

75%≤P1≤100%

µµµµµ

Alarmstatus

Function

Recommendedfor

RedYellowYellowYellowYellow

Blocked

µµ

Supplyvoltagelow

µµ

Electricalerror

µµ

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6.1.4Domestichotwaterpump

Thedomestichotwaterpumpcanbeprogrammedwiththe

desiredtimeprogramme.

6.2Maintenance

Thesubstationrequireslittlemonitoring,apartfromroutine

checks.Itisrecommendedtoreadtheenergymeteratregular

intervals,andtowritedownthemeterreadings.

RegularinspectionsofthesubstationaccordingtothisInstruction

arerecommended,whichshouldinclude:

Strainers

Cleaningofstrainers.

Meters

Checkingofalloperatingparameterssuchasmeterreadings.

Temperatures

Checkingofalltemperatures,suchasDHsupplytemperatureand

DHWtemperature.

Connections

Checkingallconnectionsforleakages.

Safetyvalves

Theoperationofthesafetyvalvesshouldbecheckedbyturning

thevalveheadintheindicateddirection.

Venting

Checkingthatthesystemisthoroughlyvented.

Inspectionsshouldbecarriedoutminimumeverytwoyears.

SparepartscanbeorderedfromDanfoss.Pleaseensurethatany

enquiryincludesthesubstationserialnumber.

Authorizedpersonnelonly

Assembly,start-upandmaintenanceworkmustbeperformedby

qualiedandauthorizedpersonnelonly.

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7.0Troubleshooting

7.1Troubleshootingingeneral

Intheeventofoperatingdisturbances,thefollowingbasicfeatures

shouldbecheckedbeforecarryingoutactualtroubleshooting:

•thesubstationisconnectedtoelectricity,

•thestrainerontheDHsupplypipeisclean,

•thesupplytemperatureoftheDHisatthenormallevel

(summer,atleast60°C-winter,atleast70°C),

•thedifferentialpressureisequaltoorhigherthanthenormal

(local)differentialpressureintheDHnetwork–ifindoubt,ask

theDHplantsupervisor,

•pressureonthesystem-checktheHEpressuregauge.

Authorizedpersonnelonly

Assembly,start-upandmaintenanceworkmustbeperformedby

qualiedandauthorizedpersonnelonly.

7.2TroubleshootingDHW

ProblemPossiblecauseSolution

Strainerinsupplyorreturnlineclogged.Cleanstrainer(s).

DHWcirculationpumpoutoforderorwith

toolowsetting.

Checkcirculationpump.

Defectiveorcloggednon-returnvalve.

Replace–clean.

Noelectricity.Check.

Wrongsettingofautomaticcontrols,ifany.Toadjustanelectroniccontrollerfor

DHW,pls.noteenclosedinstructionsfor

electroniccontroller.

Scalingoftheplateheatexchanger.

Replace–rinseout.

Defectivemotorizedvalve.Check(usemanualfunction)–replace.

Defectivetemperaturesensors.

Check–replace.

ToolittleornoDHW.

Defectivecontroller.

Check–replace.

DCWisbeingmixedwiththeDHW,e.g.in

adefectivethermostaticmixingvalve.

Check–replace. Hotwaterinsometapsbutnotinall.

Defectiveorcloggednon-returnvalveon

circulationvalve.

Replace–clean.

Taptemperaturetoohigh;DHWtapload

toohigh.

Thermostaticvalveadjustedtoatoohigh

level.

Check–set.

Scalingoftheplateheatexchanger.

Replace–rinseout. Temperaturedropduringtapping.

LargerDHWowthanthesubstationhas

beendesignedfor.

ReduceDHWow.

Thermostaticcontrolvalvedoesnotclose

TemperaturedifferencebetweenDH

supplyandDHWsetpointtoolow.

Lowerthesetpointtemperatureor

increasetheDHsupplytemperature.

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7.3Disposal

Disposal

Thisproductshouldbedismantledanditscomponents

sorted,ifpossible,invariousgroupsbeforerecycling

ordisposal.

Alwaysfollowthelocaldisposalregulations.

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8.0Declaration

8.1Declarationofconformity

Category0withelectricalequipment

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OperatingGuideTermixSolarA+/B+

Danfoss Termix Solar A+/B+ Operating instructions

Danfoss Termix Solar A+/B+ Operating instructions

Danfoss Termix Solar A+/B+ Operating instructions

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