Danfoss Termix Novi Operating instructions

Brand: Danfoss

Model: Termix Novi

Type: Operating instructions

Danfoss Termix Novi is an instantaneous water heater with heat exchanger and flow compensated temperature controller. Designed for wall-mounting, it's suitable for flats, single-family houses, and small apartment buildings. Its heat exchanger cools district heating water efficiently, creating excellent operation economy. The Termix prepares domestic hot water in the heat exchanger, and the temperature is regulated by a flow controller with an integrated differential pressure controller.

InstallationGuide

TermixNovi

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..........................................................9

6.1DHWtemperaturecontrol........................................9

6.2Maintenance........................................................11

7.0Troubleshooting..............................................12

7.1Troubleshootingingeneral......................................12

7.2TroubleshootingDHW............................................12

7.3Disposal.............................................................13

8.0Declaration......................................................15

8.1Declarationofconformity........................................15

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InstallationGuideTermixNovi

2.0Functionaldescription

Instantaneouswaterheaterwithheatexchangerand

owcompensatedtemperaturecontroller.Designedfor

wall-mounting.

Application

TheTermixWaterheaterisaninstantaneouswaterheaterfeaturing

superbheatextractionandhighperformance.TheTermixWater

heaterissuitableforats,single-familyhousesaswellasforsmall

apartmentbuildings.Thewaterheaterisavailableintwosizes,

eitherfor1apartment,orupto4apartments.TheTermixWater

heaterisapplicablefordecentralizedheatingsystems.Theheat

exchangerintheTermixWaterheatercoolsthedistrictheating

waterveryefciently,therebycreatingaverygoodoperation

economy.

Domestichotwater(DHW)

Thedomestichotwaterispreparedintheheatexchangerandthe

temperatureisregulatedbyaowcontrollerwithaintegrated

differentialpressurecontroller.

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DanfossDistrictEnergy

InstallationGuideTermixNovi

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.

DanfossDistrictEnergy

VI.GE.N2.02/LUK38040

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InstallationGuideTermixNovi

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+DCW+DHW:

G¾”(ext.thread)

Dimensions(mm):

Type1+2withinsulation:

H432xW300xD155

Type1+2withcover:

H442xW315xD155

Weightincl.cover:7–9kg(incl.packing)

Cover:Greyfull-insulation

Authorizedpersonnelonly

Assembly,start-upandmaintenanceworkmustbeperformedby

qualiedandauthorizedpersonnelonly.

Thepipeplacementcandeviatefromtheshowndrawing.Pleasenote

themarkingsonthestation.

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VI.GE.N2.02/LUK38040

DanfossDistrictEnergy

InstallationGuideTermixNovi

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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InstallationGuideTermixNovi

5.0Design

5.1Design

Yoursubstationmightlookdifferentthanthesubstationshown.

Designdescription

Heatexchanger,DHW

Circulationconnection

Sieve

IHPTcontroller,DHW

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InstallationGuideTermixNovi

5.2Schematicdiagram

DHW

DCW

Supply

Return

GTU.

Maynotbeappliedtostationswithhotwater

circulation!

Yoursubstationmightlookdifferentthantheschematicdiagramshown.

SchematicdescriptionwithGTU

Heatexchanger,DHW

Sieve

GTUPressureequalizer

IHPTcontroller

DHW

HWC

DCW

Supply

Return

Yoursubstationmightlookdifferentthantheschematicdiagramshown.

Schematicdescriptionwithsafetyvalve

Heatexchanger,DHW

Safetyvalve

Sieve

Singlecheckvalve

Tobeorderedseparately

IHPTcontroller

Singlecheckvalveincl.circulationpipe

DanfossDistrictEnergy

VI.GE.N2.02/LUK38040

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InstallationGuideTermixNovi

DHW:DomesticHotWater

HWC:

HotWaterCirculation

DCW:

DomesticColdWater

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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InstallationGuideTermixNovi

6.0Controls

6.1DHWtemperaturecontrol

DHWtemperaturecontrol

TherearevarioustypesofDHWtemperaturecontrolusedin

Danfosssubstations.

DHWtemperatureshouldbeadjustedto45-50°C,asthisprovides

optimalutilisationofDHwater.AtDHWtemperaturesabove55°C,

thepossibilityoflimescaledepositsincreasessignicantly.

6.1.1IHPT90controller(45–65°)

IHPTisaself-actingow-compensatedtemperaturecontrollerwith

integrateddifferentialpressurecontroller.

TheIHPToperatesatitsbestatDHsupplytemperaturesofupto

100°C.

Byturningthehandlefortemperaturesettingin(+)direction

thesettingisincreased,byturningitin(-)directionthesettingis

decreased.

Turns*DHWTemperatureSetting[°C]

064

258

*Startposition:Handleturnedfullyin(+)direction.

Thevaluesareintendedasaguide.

6.1.2Safetyvalve

Thepurposeofthesafetyvalveistoprotectthesubstationfrom

excessivepressure.

Theblow-offpipefromthesafetyvalvemustnotbeclosed.The

blow-offpipeoutletshouldbeplacedsothatitdischargesfreely

anditispossibletoobserveanydrippingfromthesafetyvalve.

Itisrecommendedtochecktheoperationofsafetyvalvesat

intervalsof6months.Thisisdonebyturningthevalveheadin

directionindicated.

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InstallationGuideTermixNovi

6.1.3Strainer

Strainersshouldbecleanedregularlybyauthorizedpersonnel.The

frequencyofcleaningwoulddependonoperatingconditionsand

themanufacturer’sinstructions.

6.1.4GTUPressureEqualizer

TheGTUPressureEqualizerabsorbstheexpansiononthe

secondarysideoftheTermixwaterheatersandcanbeusedasa

substitutetothesafetyvalve.

Furthermorethepressureequalizerabsorbsapossibleincreasein

pressure,soadischargeoutletisomitted.

TheGTUPressureEqualizermaynotbeappliedinsystemswithhot

watercirculation.

6.1.5Circulationpipe

Thecirculationpipesetismounteddirectlyonthecontroller.

Thesetincludescirculationpipe,singlecheckvalveandtting.

Whenmountingthehotwatercirculationdirectlyonthecontroller

thehotwatercirculationtemperaturewillbeequaltotheidle

temperature.Theidletemperatureisafewdegreeslowerthanthe

setdomestichotwatertemperature.

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InstallationGuideTermixNovi

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.

DanfossDistrictEnergy

VI.GE.N2.02/LUK38040

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InstallationGuideTermixNovi

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.

Idletemperaturetoolow(forstations

equippedwithIHPT).

Setpointtoolow.Turnthermostatin(+)direction.

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DanfossDistrictEnergy

InstallationGuideTermixNovi

7.3Disposal

Disposal

Thisproductshouldbedismantledanditscomponents

sorted,ifpossible,invariousgroupsbeforerecycling

ordisposal.

Alwaysfollowthelocaldisposalregulations.

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InstallationGuideTermixNovi

8.0Declaration

8.1Declarationofconformity

Declarationofcompliance

We:

GeminaTermixA/S

MemberoftheDanfossGroup

Navervej15-17

DK-7451Sunds

doherebyonourownresponsibilitydeclarethatthefollowingproducts:

TermixSubstations

coveredbythisdeclarationisinconformitywiththefollowingdirective(s),

standard(s)orothernormativedocument(s),

providedthattheproductsareusedinaccordancewithourinstructions.

EUDirectives:

MachineryDirective2006/42/EEC

ENISO14121-1Safetyofmachinery-Riskassessment

EN60204-1Safetyofmachinery-Electricalequipmentofmachines

EMCDirective2004/108/EEC

EN61000-6-22007Electromagneticcompatibility

-Genericstandard:Immunityindustry

EN61000-6-32007Electromagneticcompatibility

-Genericstandard:Emissionforresidential,commercialandlightindustry

PEDDirective97/23/EEC

AllsubstationsthatfallsunderArticle3.3andcategory1shallnotbeCE-marked

accordingtothisdirective,howeverallessentialsafetyrequirementsfromthe

PEDDirective97/23/EECarefollowedtoensurehydraulicsafety

Thisdeclarationisimmediatelyannulled,iftheproductisinterferedwithinanyway,

whichinterfereswiththeabovementioneddirectivesandstandards,

withoutthewrittenconsentfromGeminaTermixA/S.

2010.01.05—Sunds

Timeandplace

LarsGinnerup

Responsibleforquality

DanfossDistrictEnergy

VI.GE.N2.02/LUK38040

DEN-GT

InstallationGuideTermixNovi

Danfoss Termix Novi Operating instructions

Danfoss Termix Novi Operating instructions

Danfoss Termix Novi Operating instructions

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