Danfoss Termix One-B Operating instructions

Brand: Danfoss

Model: Termix One-B

Type: Operating instructions

InstallationGuide

TermixOne-Bwithcompleteinsulation

1.0TableofContents

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

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

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

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

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

4.1Mounting...........................................................4

5.0Design.............................................................6

5.1Design...............................................................6

5.2Schematicdiagram................................................7

6.0Controls..........................................................8

6.1DHWtemperaturecontrol........................................8

6.2Maintenance........................................................9

7.0Troubleshooting..............................................10

7.1Troubleshootingingeneral......................................10

7.2TroubleshootingDHW............................................10

7.3Disposal.............................................................11

8.0Declaration......................................................14

8.1Declarationofconformity........................................14

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InstallationGuideTermixOne-Bwithcompleteinsulation

2.0Functionaldescription

Instantaneouswaterheaterwithheatexchangerand

thermostaticcontrol.Designedforwallmounting.

Application

TheTermixOneisaninstantaneouswaterheaterfeaturingsuperb

heatextractionandhighperformance.TheTermixOneissuitable

forats,single-familyhousesaswellasforsmallapartment

buildingswithupto10apartments.Thewaterheaterisavailablein

threesizes,eitherfor1apartment,for1‑4apartmentsorfor5up

to10apartments.TheTermixOneisapplicablefordecentralized

heatingsystems–aswellasfordistrictheatingnetworkswith

summeroperationatlowtemperaturesorchangesindifferential

pressure.TheTermixOneheatexchangercoolsoutthedistrict

heatingwaterveryefciently,therebycreatingaverygood

operationeconomy.

Domestichotwater(DHW)

Thedomestichotwaterispreparedintheheatexchangerand

thetemperatureisregulatedwithathermostaticcontrolvalve.

Thepatentedsensoracceleratoracceleratestheclosingofthe

DanfossAVTBvalveandprotectstheheatexchangeragainst

overheatingandlimescaleformation.Thesensoracceleratorand

AVTBvalvealsoworksasabypasskeepingthehousesupplyline

warm.Thisshortensthewaitingperiodsduringsummerwhenthe

heatingsystemisinreducedoperation.Thesensoraccelerator

helpstoensureastablehotwatertemperaturebyvaryingloads,

owtemperaturesanddifferentialpressurewithouttheneedfor

readjustingthevalve.Thereisnoadditionalpressurelossonthe

secondarysideoftheDHWheatexchangerwithathermostatic

control.Thereforethistypeofregulationcanbeusedbylow

pressureontheinthecoldwatermains.

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InstallationGuideTermixOne-Bwithcompleteinsulation

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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InstallationGuideTermixOne-Bwithcompleteinsulation

4.0Mounting

4.1Mounting

Installationmustbeincompliancewithlocalstandardsand

regulations.

Districtheating(DH)-Inthefollowingsections,DHreferstothe

heatsourcewhichsuppliesthesubstations.Avarietyofenergy

sources,suchasoil,gasorsolarpower,couldbeusedasthe

primarysupplytoDanfosssubstations.Forthesakeofsimplicity,

DHcanbetakentomeantheprimarysupply.

Connections:

1.Domesticcoldwater(DCW)

2.Domestichotwater(DHW)

3.Districtheating(DH)supply

4.Districtheating(DH)return

Connectionsizes:

DH:

G¾”(int.thread)

DCW+DHW:

G¾”(int.thread)

Dimensions(mm):

Type1+2withinsulation:

H435xW355xD195

Weight(approx.):10–12kg

Authorizedpersonnelonly

Assembly,start-upandmaintenanceworkmustbeperformedby

qualiedandauthorizedpersonnelonly.

Thepipeplacementcandeviatefromtheshowndrawing.Pleasenote

themarkingsonthestation.

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InstallationGuideTermixOne-Bwithcompleteinsulation

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.

Thightening

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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InstallationGuideTermixOne-Bwithcompleteinsulation

5.0Design

5.1Design

Yoursubstationmightlookdifferentthanthesubstationshown.

Designdescription

Heatexchanger,DHW

Termixsensoraccelerator

Thermostaticcontroller,DHW

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InstallationGuideTermixOne-Bwithcompleteinsulation

5.2Schematicdiagram

Supply

DHW

HWC

Return

DCW

Yoursubstationmightlookdifferentthantheschematicdiagramshown.

Schematicdescription

Heatexchanger,DHW

Thermostatic/non-returnvalve

Thermostaticvalve

Tobeorderedseparately

DHW:DomesticHotWater

DCW:

DomesticColdWater

HWC:

HotWaterCirculation

DHSupply:DistrictHeatingSupply

DHReturn:DistrictHeatingReturn

5.2.1Technicalparameters

Technicalparameters

Nominalpressure:

PN16

Max.DHsupplytemperature:

120°C

Min.DCWstaticpressure:

0.5bar

Brazingmaterial(HEX):

Copper

Heatexchangerstestpressure:30bar

Soundlevel:≤55dB

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InstallationGuideTermixOne-Bwithcompleteinsulation

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.

6.1.2Safetyvalve

Thepurposeofthesafetyvalveistoprotectthesubstationfrom

excessivepressure.

Theblow-offpipefromthesafetyvalvemustnotbeclosed.The

blow-offpipeoutletshouldbeplacedsothatitdischargesfreely

anditispossibletoobserveanydrippingfromthesafetyvalve.

Itisrecommendedtochecktheoperationofsafetyvalvesat

intervalsof6months.Thisisdonebyturningthevalveheadin

directionindicated.

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InstallationGuideTermixOne-Bwithcompleteinsulation

6.1.3Strainer

Strainersshouldbecleanedregularlybyauthorizedpersonnel.The

frequencyofcleaningwoulddependonoperatingconditionsand

themanufacturer’sinstructions.

6.1.4GTUPressureEqualizer

TheGTUPressureEqualizerabsorbstheexpansiononthe

secondarysideoftheTermixwaterheatersandcanbeusedasa

substitutetothesafetyvalve.

Furthermorethepressureequalizerabsorbsapossibleincreasein

pressure,soadischargeoutletisomitted.

TheGTUPressureEqualizermaynotbeappliedinsystemswithhot

watercirculation.

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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InstallationGuideTermixOne-Bwithcompleteinsulation

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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InstallationGuideTermixOne-Bwithcompleteinsulation

7.3Disposal

Disposal

Thisproductshouldbedismantledanditscomponents

sorted,ifpossible,invariousgroupsbeforerecycling

ordisposal.

Alwaysfollowthelocaldisposalregulations.

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VI.IE.F2.02/LUK38003

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InstallationGuideTermixOne-Bwithcompleteinsulation

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InstallationGuideTermixOne-Bwithcompleteinsulation

DanfossDistrictEnergy

VI.IE.F2.02/LUK38003

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InstallationGuideTermixOne-Bwithcompleteinsulation

8.0Declaration

8.1Declarationofconformity

8.1.1Category0withoutelectricalequipment

EC–DeclarationofConformity

GeminaTermixA/S

MemberoftheDanfossGroup

Navervej15-17

DK-7451Sunds

Declaresonoursoleresponsibilitythatthebelowproducts:

Substations–Category0withoutelectricalequipment,

coveredbythisdeclarationareinconformitywiththefollowingdirectives,standardsandothernormative

documents,providedthattheyareusedaccordingtoourinstructions.

MachineryDirective2006/42/EC

DS/EN60204-1/A1:2009.Safetyofmachinery–

Part1–GeneralRequirements.

DS/EN12100:2011.Safetyofmachinery–Risk

assessment.

Sunds–2013.03.15

PlaceanddateofissueClausGjøderumMortensen

Quality&EnvironmentManager

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VI.IE.F2.02/LUK38003

DanfossDistrictEnergy

InstallationGuideTermixOne-Bwithcompleteinsulation

Danfoss Termix One-B Operating instructions

Danfoss Termix One-B Operating instructions

Danfoss Termix One-B Operating instructions

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