Danfoss Termix Compactstation 28 MS VVX Operating instructions

Brand: Danfoss

Model: Termix Compactstation 28 MS VVX

Type: Operating instructions

OperatingGuide

TermixCompact28MSVVX

1.0TableofContents

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

2.0Functionaldescription......................................2

3.0Safetynotes.....................................................3

3.1SafetyNotes–general............................................3

4.0Mounting........................................................4

4.1MountingtheCompactstation..................................4

4.2Start-up..............................................................10

4.3Electricalconnections.............................................12

5.0Design.............................................................13

5.1Design...............................................................13

5.2Schematicdiagram................................................14

6.0Controls..........................................................15

6.1Heatingcircuit......................................................15

6.2Other.................................................................19

6.3Maintenance........................................................20

7.0Troubleshooting..............................................21

7.1Troubleshootingingeneral......................................21

7.2TroubleshootingDHW............................................22

7.3TroubleshootingHE...............................................23

7.4Disposal.............................................................25

8.0Declaration......................................................27

8.1Declarationofconformity........................................27

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2.0Functionaldescription

Districtheatingsubstationforindirectheatingand

instantaneousdomestichotwater.

Spaceheatinganddomestichotwater(DHW)

TheTermixCompact28MSVVXisacompleteunitforindirect

spaceheatinganddomestichotwaterfordistrictheatinginlarge

buildingssuchassportscentres,schools,blocksofﬂatsetc.

Itcanbeusedforconnectiontoindirectdistrictheatinginplaces

wherethedistrictheatingplantrequiresahydraulicbreak.Itis

alsosuitableforconversiontodistrictheatingwhenthesecondary

heatingsystemisunsuitabletobeingconnectedtodirectdistrict

heatingorwhenaparticularlyeffectivesecurityagainstleakagein

theheatingsystemisrequired.

Efﬁcientheatexchanger

Thesubstationisﬁttedwithanefﬁcientplateheatexchanger,

whichensuresthemostfavourableheatextractionandachieves

optimumcomfortandoperatingeconomy.

Electronicregulation

TheTermixCompact28MSVVXisbuiltwithaplateheatexchanger

forinstantaneousdomestichotwaterproductionandheat

exchangerforspaceheating.Eachcircuitisalsosuppliedwithits

ownﬂowcontroller.

Thisallowsthegreatestdegreeofindividualcontrol,thus

preventingoscillationatdifferentloads.Theelectroniccontrolleris

factorypre-set.Electricalcomponentsarepre-wired,andtheunitis

equippedwithaplugfor230Va.c.

Itisrecommendedthatbalancingvalvesareinstalledinthe

building’srisersintheheatsupplyandontheheatingsystem’s

returnlineimmediatelybeforetheunit.

Minimalheatloss

Completeinsulationoftheunitensuresminimalheatloss.

Easyinstallation

Theunitconsistsoftwomodules,oneforspaceheatingandone

fordomestichotwaterproduction,whichiseasilyassembled

intoonesinglemodule.Thismodulardesignmakesworkduring

installationsigniﬁcantlyeasier,astheweightissplitbetweentwo

modulesduringhandling.

Flexiblesolution

Pipeconnectioncanbemadefromeitherthetoporbottom,which

makesthissolutionhighlyﬂexible.Atthesametime,bothspace

andtimearesavedwheninstalling.

Reliableandeasytoinstall

TermixCompact28MSVVXisoperationallyreliable.Aquality

productmanufacturedinDenmarkwhichiseasytoinstalland

quicklycommissioned.

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OperatingGuideTermixCompact28MSVVX

3.0Safetynotes

3.1SafetyNotes–general

Thefollowinginstructionsrefertothestandarddesignof

substation.Specialversionsofsubstationsareavailableon

request.

Thisoperatingmanualshouldbereadcarefullybeforeinstallation

andstart-upofthesubstation.Themanufactureracceptsno

liabilityfordamageorfaultsthatresultfromnon-compliancewith

theoperatingmanual.Pleasereadandfollowalltheinstructions

carefullytopreventaccidents,injuryanddamagetoproperty.

Assembly,start-upandmaintenanceworkmustbeperformedby

qualiﬁedandauthorizedpersonnelonly.

Pleasecomplywiththeinstructionsissuedbythesystem

manufacturerorsystemoperator.

Corrosionprotection

Allpipesandcomponentsaremadeofstainlesssteelandbrass.

Themaximumchloridecompoundsoftheﬂowmediumshouldnot

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-ﬁre,leaksorotherdangerous

circumstances-interruptallenergysourcestothestationif

possible,andseekexperthelp.

Incaseofdiscolouredorbad-smellingdomestichotwater,closeall

shut-offvalvesonthesubstation,informtheoperatingpersonnel

andcallforexperthelpimmediately.

REACH

AllDanfossA/SproductsfulﬁlltherequirementsinREACH.

OneoftheobligationsinREACHistoinformcustomersabout

presenceofCandidatelistsubstancesifany,weherebyinform

youaboutonesubstanceonthecandidatelist:Theproduct

containsbrasspartswhichcontainslead(CASno:7439-92-1)ina

concentrationabove0.1%w/w.

Storage

Anystorageofthesubstationwhichmaybenecessarypriorto

installationshouldbeinconditionswhicharedryandheated.

Authorizedpersonnelonly

Assembly,start-upandmaintenanceworkmustbeperformedby

qualiﬁedandauthorizedpersonnelonly.

Pleaseobserveinstructionscarefully

Toavoidinjurytopersonsanddamagetothedevice,itisabsolutely

necessarytoreadandobservetheseinstructionscarefully.

Warningofhighpressureandtemperature

Beawareoftheinstallation’spermissiblesystempressureand

temperature.

Themaximumtemperatureoftheﬂowmediuminthesubstationis

110°C.

Themaximumoperatingpressureofthesubstationis16bar.

Theriskofpersonsbeinginjuredandequipmentdamagedincreases

considerablyiftherecommendedpermissibleoperatingparameters

areexceeded.

Thesubstationinstallationmustbeequippedwithsafetyvalves,

however,alwaysinaccordancewithlocalregulations.

Warningofhotsurface

Thesubstationhasgothotsurfaces,whichcancauseskinburns.

Pleasebeextremelycautiousincloseproximitytothesubstation.

Powerfailurecanresultinthemotorvalvesbeingstuckinopen

position.Thesurfacesofthesubstationcangethot,whichcancause

skinburns.Theballvalvesondistrictheatingsupplyandreturnshould

beclosed.

Warningoftransportdamage

Beforesubstationinstallation,pleasemakesurethatthesubstation

hasnotbeendamagedduringtransport.

IMPORTANT-Tighteningofconnections

Duetovibrationsduringtransportallﬂangeconnections,screwjoints

andelectricalclampandscrewconnectionsmustbecheckedand

tightenedbeforewaterisaddedtothesystem.Afterwaterhasbeen

addedtothesystemandthesystemhasbeenputintooperation,

re-tightenALLconnections.

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OperatingGuideTermixCompact28MSVVX

4.0Mounting

4.1MountingtheCompactstation

Installationmustbeincompliancewithlocalstandardsand

regulations.

Districtheating(DH)-Inthefollowingsections,DHreferstothe

heatsourcewhichsuppliesthesubstations.Avarietyofenergy

sources,suchasoil,gasorsolarpower,couldbeusedasthe

primarysupplytoDanfosssubstations.Forthesakeofsimplicity,

DHcanbetakentomeantheprimarysupply.

Connections:

1.Districtheating(DH)supply

2.Districtheating(DH)return

3.Hotwatercirculation(HWC)

4.Heating(HE)supply

5.Heating(HE)return

6.Domestichotwater(DHW)

7.Domesticcoldwater(DCW)

Connectionsizes:

DH+HE+DHW+DCW:G1”(int.thread)

HWC:G¾”(int.thread)

Dimensions(mm):

Withinsulation:H1063xW905xD400

Weight(approx.):55kg

Authorizedpersonnelonly

Assembly,start-upandmaintenanceworkmustbeperformedby

qualiﬁedandauthorizedpersonnelonly.

Thepipeplacementcandeviatefromtheshowndrawing.Pleasenote

themarkingsonthestation.

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Removethefront.

Removeotherblocks.

Attachthemountingrailtothewall.

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Liftthestation.

Mountthestationonthemountingrail.

Attachthestationtothewallintheholesonthemountingplate.

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Installisolationvalvewithpressuregaugetotheleft—Heating

supply.

Installisolationvalvewithsafetyvalvetotheright—Heating

return.

Installthecirculationpumpwiththesinglecheckvalve.

MountblockAontheleft-handsideofthepump.AttachblockE

toblockA,andattachittothepipeabovethepumpbyclicking

itinplace.

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OperatingGuideTermixCompact28MSVVX

MountblockBontheright-handsideofthepump.

MountblockF.Theblockishingedandcanbedrawnaroundthe

valve.AttachtheblocktoblockBandE.

MountblockJandHaroundthevalveforthetankcontrol.

Mountthefrontcover.

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4.1.1InstallingtheCompactstation

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

Ifastrainerissuppliedwiththestationitmustbeﬁttedaccording

toschematicdiagram.Pleasenotethatthestrainermaybe

suppliedloose.

Connections

Internalinstallationanddistrictheatingpipesconnectionsmustbe

madeusingthreaded,ﬂangedorweldedconnections.

Keyholeformounting.

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4.2Start-up

Start-up,Indirectheating

Filling:

1:Firstﬁll

Whencarryingoutﬁrstﬁll,theheatexchangermustbeslowlyﬁlled

withwateruntilitreachesworkingpressure.

2:Pressuregauge

TheHEpressuregaugeindicatesthepressureoftheHEsystem.This

instructionmustbefollowedstrictly,toavoiddangeroussituations.

3:Supplyhose

AballvalvewithplugisinstalledintheHEreturnline.Toﬁllthe

system,theballvalvemustﬁrstbeclosed,theplugremovedand

asupplyhoseconnected.Onre-openingtheballvalve,system

ﬁllcancommence.

4:Pre-pressure

Whenﬁllingthesystemwithwater,thepressuregaugeshouldbe

observedclosely.Theexpansionvesselissuppliedpre-pressurised

to0.5bar.Thepre-pressurerequiredateachsubstationwill

dependonsystemhead(thedistancebetweenthelowestand

highestpointinthesystem),forexample:

5:Fillingstop

Fillingmuststopwhenthepressuregaugeshowsapressure

approximately1-2barhigherthanthepre-pressuresetting.The

ballvalveisthenclosed,thehoseremovedandtheplugputback

in.

Start-up:

1:Pumpspeed

Setthepumptohighestspeedbeforestart-up.

2:Startpump

Startthepumpandheatthroughthesystem.

3:Openshut-offvalves

Theshut-offvalvesshouldthenbeopenedandtheunitobserved

asitentersservice.Visualcheckingshouldconﬁrmtemperatures,

pressures,acceptablethermalexpansionandabsenceofleakage.

Iftheheatexchangeroperatesinaccordancewithdesign,itcanbe

puttoregularuse.

4:Ventsystem

Switchoffthepumpandventtheinstallationaftertheradiators

havebeenwarmedup.

5:Adjustpumpspeed

Setthepumptothelowestspeedconsistentwithcomfortand

electricityconsumption.

Normallythechange-overswitchissetinthemidposition(default).

Howeverforsystemswithunderﬂoorheatingorsinglepipeloop

systems,itmaybenecessarytoturnthechange-overswitch

upwards.

Higherpumpspeedsareonlyusediftheheatingrequirement

increases.

Re-tightenconnections

Afterwaterhasbeenaddedtothesystemandthesystemhasbeen

putintooperation,re-tightenALLconnections.

Pump

Thepumpmustbeswitchedoffduringsystemﬁll.

Height(m)Pressure(bar)

0–50,5

5–101,0

10–151,5

15–202,0

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Underﬂoorheating:

Pumpstopfunction

Ifthesubstationisusedinconnectionwithunderﬂoorheating,the

circulationpumpmustbeconnectedtothepumpstopfunctionin

theunderﬂoorheatingcontroller.Thepumpmustbestoppedif

allunderﬂoorheatingcircuitsareclosed.

Warranty

Ifthisisnotpossible,thenﬂowmustbecontinuedthroughthe

by-pass.Failingthis,thepumpwillbeatriskofseizureandany

remainingwarrantywillbewithdrawn.

Summeroperation:

Switchoffpump

Insummerthecirculationpumpmustbeswitchedoffandthe

shut-offvalvetoHEsupplyclosed.

Runningpumpbi-weekly

Itisrecommendedtostartupthecirculationpump(for2minutes)

onceamonthduringsummer;theshut-offvalveoftheHEsupply

mustbeshut.

Electroniccontroller

Mostelectroniccontrollerswillstartupthepumpautomatically

(pleasenotemanufacturer´sinstructions).

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OperatingGuideTermixCompact28MSVVX

4.3Electricalconnections

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.

OperatingGuideTermixCompact28MSVVX

5.0Design

5.1Design

Yoursubstationmightlookdifferentthanthesubstationshown.

Designdescription

AHeatexchanger,HE9Strainer27Actuator

BHeatexchanger,DHW10Circulatorpump292–waymotorizedvalve

FElectroniccontroller11HWCpump30Flowcontrollerw/intg.controlvalve

1Isolationvalve19Surfacesensor31Differentialpressurecontroller

2Singlecheckvalve20Filling/drainvalve48Airvent,manual

4Safetyvalve,HE26Pressuregauge

OperatingGuideTermixCompact28MSVVX

5.2Schematicdiagram

5.2.1SchematicdiagramTermixCompact28MSVVX

Yoursubstationmightlookdifferentthantheschematicdiagramshown.

Schematicdescription

AHeatexchanger,HTG10Circulatorpump26Pressuregauge

BHeatexchangerDHW11HWCpump27Actuator

FElectroniccontroller16Outdoorsensor292–waymotorizedvalve

1Isolationvalve19Surfacesensor30Flowcontrollerw/intg.controlvalve

2Singlevalve20Filling/drainvalve31Differentialpressurecontroller

4Safetyvalve23Ballvalve40Immersionsensor

9Strainer24Deliveredloosewithunit48Airvent,manual

DHSupply:DistrictHeatingSupply

DHReturn:DistrictHeatingReturn

HESupply:HeatingSupply

HEReturn:HeatingReturn

DHW:Domestichotwater

HWC:Hotwatercirculation

DCW:Domesticcoldwater

5.2.2Technicalparameters

Nominalpressure:PN16

Max.DHsupplytemperature:110°C

Brazingmaterial(HEX):Copper

Heatexchangerstestpressure:30bar

Soundlevel:≤55dB

OperatingGuideTermixCompact28MSVVX

6.0Controls

6.1Heatingcircuit

6.1.1Differentialpressurecontroller

Thedifferentialpressurecontrollersmoothsouttheﬂuctuationsin

pressurearrivingfromthedistrictheatingnetwork.Theoperating

pressureinthesubstationisthusheldsteady.

6.1.2Flowcontrollerwithintegratedcontrolvalve

Thecontrollerisaself-actingﬂowcontrollerwithintegratedcontrol

valve.Thecontrollercloseswhensetmax.ﬂowisexceededand

canbeusedincombinationwithDanfosselectricalactuatorswith

orwithoutsafetyfunction.Springreturnmotorcanbeusedas

safetyfunctionbypowerfailure.

6.1.3Electric2–waymotorizedvalve

Actuatorswithorwithoutsafetyfunctionareavailablefor3-point

controls.Spring-returnactuatorscanbeusedtoprovidesafety

shut-offintheeventofpowerfailure.

OperatingGuideTermixCompact28MSVVX

6.1.4Electroniccontrol

Substationswithelectroniccontrolmustbesetinaccordancewith

manufacturer´sinstructions.

Wheretheroomtemperatureiscontrolledbyradiatorthermostats,

itisrecommendedthatthermostatsbesetforminimum

temperatureineachroom.

6.1.5Outsidetemperaturesensor

Outdoorsensorsshouldbemountedsoastoavoidexposureto

directsunlight.Theyshouldnotbeplacedclosetodoors,windows

orventilationoutlets.

6.1.6CirculatorpumpUPM3

UPM3Pumpscanbecontrolledinconstantpressure,proportional

pressureorconstantspeedmodedeﬁnedbythemeansofasmart

userinterface.

Thevariablespeedmodulatingmodesallowthepumptomatchits

performancetothesystemrequirements,helpingtoreducenoise

whenthermostaticvalvesareclosingdown.

EnergylabellingclassA

OperatingGuideTermixCompact28MSVVX

6.1.7GrundfosUPM3AUTOinstructions

Controlmode

Eachpushonthebuttonswitchestothenextprogramsetting.Thechoiceofoperationmodedependsonthetypeofheatingsystem

andthepressurelossinthesystem.

Settings

Function:Recommendedfor:GreenGreenYellowYellowYellow

ProportionalpressureAutoadapt�

ConstantpressureAutoadapt�

Proportionalpressure1��

Proportionalpressure22-pipesystems��

Proportionalpressure3—MAX��

Constantpressure11-pipesystems��

Constantpressure2Underﬂoorheating��

Constantpressure3—MAX��

ConstantCurve1�

ConstantCurve2��

ConstantCurve3—MAX��

Alarmstatus

Function:Recommendedfor:RedGreenYellowYellowYellow

PowerSupplyfailure

Blocked��

Supplyvoltagelow��

Electricalerror��

OperatingGuideTermixCompact28MSVVX

6.1.8HEpressuregauge

TheHEpressuregaugeindicatesthepressureoftheHEsystem.

OperatingGuideTermixCompact28MSVVX

6.2Other

6.2.1Safetyvalve

Thepurposeofthesafetyvalveistoprotectthesubstationfrom

excessivepressure.

Theblow-offpipefromthesafetyvalvemustnotbeclosed.The

blow-offpipeoutletshouldbeplacedsothatitdischargesfreely

anditispossibletoobserveanydrippingfromthesafetyvalve.

Itisrecommendedtochecktheoperationofsafetyvalvesat

intervalsof6months.Thisisdonebyturningthevalveheadin

directionindicated.

6.2.2Strainer

Strainersshouldbecleanedregularlybyauthorizedpersonnel.The

frequencyofcleaningwoulddependonoperatingconditionsand

themanufacturer’sinstructions.

OperatingGuideTermixCompact28MSVVX

6.3Maintenance

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

qualiﬁedandauthorizedpersonnelonly.

OperatingGuideTermixCompact28MSVVX

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Danfoss Termix Compactstation 28 MS VVX Operating instructions

Danfoss Termix Compactstation 28 MS VVX Operating instructions

Danfoss Termix Compactstation 28 MS VVX Operating instructions

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