Danfoss BVX-FI RO SEK Operating guide
OperatingGuide
TermixBVX-FIROSEK
1.0TableofContents
1.0TableofContents.............................................1
........................................................................2
2.0Functionaldescription......................................3
3.0Safetynotes.....................................................4
3.1SafetyNotes–general............................................4
4.0Mounting........................................................5
4.1Mounting...........................................................5
4.2Dismantletheinsulation.........................................7
4.3Mountingthedisplayoftheenergymeter....................10
4.4Start-up..............................................................11
4.5Electricalconnections.............................................13
5.0Design.............................................................14
5.1Design...............................................................14
5.2Schematicdiagram................................................15
6.0Controls..........................................................16
6.1Heatingcircuit......................................................16
6.2DHWtemperaturecontrol........................................19
6.3Other.................................................................20
6.4Maintenance........................................................22
7.0Troubleshooting..............................................23
7.1Troubleshootingingeneral......................................23
7.2TroubleshootingDHW............................................24
7.3TroubleshootingHE...............................................25
7.4Disposal.............................................................27
8.0Declaration......................................................31
8.1Declarationofconformity........................................31
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2.0Functionaldescription
Districtheatingsubstationforindirectheatingwithtankfor
domestichotwaterpreparationandwiththermostaticor
electroniccontrol.Connectionsatthetopofthestation.
Application
TheT ermixBVX-FIROSEKsubstationisacompletesolutionfor
hotwaterandspaceheatingwithoptimalsafety,efficientenergy
transfer,service-friendlyonstructionandacompactdesign.The
substationisusedifaheatexchangerisrequiredoronaconversion
todistrictheatingwheretheexistingequipmentisunsuitablefor
directconnection.
Districtheating(DH)
Thesubstationisprefabricatedwithadifferentialpressure
controller,fittingpieceandsensorpocketsforinsertionofaheat
meteraswellasstrainersandballvalves.
Heating(HE)
Theheatingcircuitconsistsofaplateheatexchanger,safetyvalves,
manometer,thermometers,ballvalves,drainvalve,airvalves,
expansionvesselandcirculationpump.Thetemperatureofthe
heatingiselectronicallycontrolledwithanoutdoortemperature
sensor.Dependingontheapplication,differentheatexchangers
dimensionedforcentralorfloorheatingwillbeused.
Domestichotwater(DHW)
Thedomestichotwatercircuitconsistsofahotwatertankwithcoil
andapumpforcontrollingthetemperaturewithpossibilityfor
DHWpriority.TheDHWtankandcoilareenamelledandthetank
containsamagnesiumanode.
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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
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.
Authorizedpersonnelonly
Assembly,start-upandmaintenanceworkmustbeperformedby
qualifiedandauthorizedpersonnelonly.
Pleaseobserveinstructionscarefully
Toavoidinjurytopersonsanddamagetothedevice,itisabsolutely
necessarytoreadandobservetheseinstructionscarefully.
Warningofhighpressureandtemperature
Beawareoftheinstallation’spermissiblesystempressureand
temperature.
Themaximumtemperatureoftheflowmediuminthesubstationis
120°C.
Themaximumoperatingpressureofthesubstationis10bar.PN16
versionsareavailableonenquiry.
Theriskofpersonsbeinginjuredandequipmentdamagedincreases
considerablyiftherecommendedpermissibleoperatingparameters
areexceeded.
Thesubstationinstallationmustbeequippedwithsafetyvalves,
however,alwaysinaccordancewithlocalregulations.
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.
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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4.0Mounting
4.1Mounting
Installationmustbeincompliancewithlocalstandardsand
regulations.
Districtheating(DH)-Inthefollowingsections,DHreferstothe
heatsourcewhichsuppliesthesubstations.Avarietyofenergy
sources,suchasoil,gasorsolarpower,couldbeusedasthe
primarysupplytoDanfosssubstations.Forthesakeofsimplicity,
DHcanbetakentomeantheprimarysupply.
Connections:
1.Hotwatercirculation(HWC)
2.Domesticcoldwater(DCW)
3.Domestichotwater(DHW)
4.Heating(HE)return
5.Heating(HE)supply
6.Districtheating(DH)return
7.Districtheating(DH)supply
Authorizedpersonnelonly
Assembly,start-upandmaintenanceworkmustbeperformedby
qualifiedandauthorizedpersonnelonly.
Connectionsizes:
Allconnections:
Dimensions(mm):
Withcover:
H1910xW600xD600(typeBVX1–x)
H1910xW600xD600(typeBVX2–x)
Weight(approx.):120-150kg
G¾”(int.thread)
Theconnectionsareatthetopofthestation.
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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
Ifastrainerissuppliedwiththestationitmustbefittedaccording
toschematicdiagram.Pleasenotethatthestrainermaybe
suppliedloose.
Connections
Internalinstallationanddistrictheatingpipesconnectionsmustbe
madeusingthreaded,flangedorweldedconnections.
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4.2Dismantletheinsulation
4.2.1Dismantletheinsulationcover
Pulloutslightlythebottomofthecover.
4.2.2Pulloutthecover
Pulloutthecover.
4.2.3RemovetheECLplate
RemovetheECLplate.BecarefulwiththecablesfromtheECLand
otherelectronics.
Attention:Duringreassemble,pleaseensurethatallcablesare
placedinthewiregrovesintheplate.Thiswillensureatightseal.
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4.2.4Removeplate
Removeplate,bypullingsidewaysawayfromtheunit.
Attention:Duringreassemble,pleaseensurethatthecableisplacedinthewiregrove.Thiswillensureatightseal.
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4.2.5Removetheframe
Toremovetheframe,pullitslightlyforwardandthenup.
4.2.6Removethepumpplate
Pullbackthepumpplateandplaceitonthepipes.
Attention:Becarefulwiththewireforthepressuregauge.
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4.3Mountingthedisplayoftheenergymeter
Markthepositionofthefixationpointsofthebracketfortheenergy
displayandscrewthetwoplugssuppliedintotheinsulationfront.
Mountthebracketforthedisplayoftheenergymeter.
Mountthedisplay/calculatoroftheenergymeterontothebracket.
Pullthewiresfromthesensorsinsidetheunitthroughthe
duct/cut-outintheinsulationplate.
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