Danfoss Termix One Solar Operating instructions

Termix One Solar
Danfoss
Brand
Danfoss
Model
Termix One Solar
Type
Operating instructions

Danfoss Termix One Solar is an instantaneous water heater designed for heating systems with buffer accumulators, solar systems, or other heat sources where a low return temperature is preferred. It features superb heat extraction, high performance, and a compact design for wall-mounting. The patented sensor accelerator and thermostatic control valve protect against overheating and limescale formation, ensuring stable hot water temperature even with varying loads and flow temperatures.

Danfoss Termix One Solar is an instantaneous water heater designed for heating systems with buffer accumulators, solar systems, or other heat sources where a low return temperature is preferred. It features superb heat extraction, high performance, and a compact design for wall-mounting. The patented sensor accelerator and thermostatic control valve protect against overheating and limescale formation, ensuring stable hot water temperature even with varying loads and flow temperatures.

InstallationGuide
TermixOneSolar
1.0TableofContents
1.0TableofContents.............................................1
........................................................................2
2.0OneSolarFunctionaldescription......................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........................................................13
7.0Troubleshooting..............................................14
7.1Troubleshootingingeneral......................................14
7.2TroubleshootingDHW............................................14
7.3Disposal.............................................................15
8.0Declaration......................................................19
8.1Declarationofconformity........................................19
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InstallationGuideTermixOneSolar
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2.0OneSolarFunctionaldescription
Domestichotwatermodulewithheatexchangerand
thermostaticcontrol.Designedforwall-mounting.
Application
TheTermixOneSolarisaninstantaneouswaterheater,featuring
superbheatextractionandhighperformance.TheTermixOne
Solarisapplicableforheatingsystemswithbufferaccumulators,
solarsystemsorforotherheatsources,whereaverylowreturn
temperatureispreferred.Thewaterheaterisavailableinthree
sizes,eitherfor1apartment,for1-4apartmentsorfor5upto10
apartments.Thelargeheatexchangercoolsoutthewaterinthe
primaryreturnlineveryefciently,therebycreatingaverygood
operationeconomy.Aowswitchincoldwatermainsiscontrolling
theprimaryheatingpump.Anoptionalcirculationpumptogether
withathermostatcanmaintainthecirculatingtemperatureata
desiredtemperature.
Domestichotwater(DHW)
Thedomestichotwaterispreparedintheheatexchangerand
thetemperatureisregulatedwithathermostaticcontrolvalve.
Thepatentedsensoracceleratoracceleratestheclosingofthe
thermostaticcontrolvalveandprotectstheheatexchangeragainst
overheatingandlimescaleformation.Thesensoracceleratorand
thethermostaticcontrolvalvealsoworksasabypasskeepingthe
heatexchangerandsupplylinewarm.Thisshortensthewaiting
periods.Thesensoracceleratorhelpstoensureastablehotwater
temperaturebyvaryingloads,owtemperaturesanddifferential
pressurewithouttheneedforreadjustingthevalve.Thereisno
additionalpressurelossonthesecondarysideoftheDHWheat
exchangerwithathermostaticcontrol.Thereforethistypeof
regulationcanbeusedbylowpressureinthecoldwatermains.
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InstallationGuideTermixOneSolar
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.Domesticcoldwater(DCW)
2.Domestichotwater(DHW)
3.BufferTank(BT)supply
4.BufferTank(BT)return
5.(Hotwatercirculation(HWC))
Connectionsizes:
BT:
G¾”(int.thread)
DCW+DHW+HWC:
G¾”(int.thread)
Dimensions(mm):
Withoutcirculationandcover:
H760xW312xD155
Withoutcirculationandwithcover:
H760xW315xD165
Withcirculationandwithoutcover:
H935xW410xD190
Weight(approx.):20kg
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.
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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4.2Electricalconnections
Beforemakingelectricalconnections,pleasenotethe
following:
Safetynotes
Pleasereadtherelevantpartsofthesafetynotes.
230V
Thesubstationmustbeconnectedto230VACandearth.
Disconnection
Thesubstationmustbeelectricallyconnectedsothatitcanbe
disconnectedforrepairs.
Outdoortemperaturesensor
Outdoorsensorsshouldbemountedsoastoavoidexposureto
directsunlight.Theyshouldnotbeplacedclosetodoors,windows
orventilationoutlets.
Theoutdoorsensormustbeconnectedtothestationonthe
terminalblockundertheelectroniccontrol.
Authorizedelectrician
Electricalconnectionsmustbemadebyanauthorizedelectricianonly.
Localstandards
Electricalconnectionsmustbemadeinaccordancewithcurrent
regulationsandlocalstandards.
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InstallationGuideTermixOneSolar
5.0Design
5.1Design
5.1.1DesignTermixOneSolar
Yoursubstationmightlookdifferentthanthesubstationshown.
Designdescription
B
Heatexchanger,DHW
35
Ballvalve/non-returnvalve
O
Termixsensoraccelerator
45
Flowswitch
7
Thermostaticcontroller,DHW
48
Airvent,manual
13
Chargingpump
63
Sieve
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5.2Schematicdiagram
5.2.1SchematicdiagramTermixOneSolar
BT
Supply
DHW
BT
Return
DCW
Yoursubstationmightlookdifferentthantheschematicdiagramshown.
Schematicdescriptionwithoutcirculation
B
Heatexchanger,DHW
7
Thermostaticvalve
45
Flowswitch
O
Termixsensoraccelerator
13
Chargingpump
48
Airvent,manual
1
Ballvalve
35
Ballvalve/non-returnvalve
63
Sieve
2
Singlecheckvalve
39
Connectionclosed
DHW:DomesticHotWater
DCW:
DomesticColdWater
BTSupply:
Buffertanksupply
BTReturn:
Buffertankreturn
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InstallationGuideTermixOneSolar
5.3Design
5.3.1DesignTermixOneSolarwithcirculation
Yoursubstationmightlookdifferentthanthesubstationshown.
Designdescription
B
Heatexchanger,DHW
13
Chargingpump
O
Termixsensoraccelerator
35
Ballvalve/non-returnvalve
4
Safetyvalve
45
Flowswitch
7
Thermostaticcontroller,DHW
48
Airvent,manual
11A
DHWpump,withbuildincheckvalve
63
Sieve
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5.4Schematicdiagram
5.4.1SchematicdiagramTermixOneSolarwithcirculation
BT
Supply
DHW
HWC
BT
ReturnDCW
Yoursubstationmightlookdifferentthantheschematicdiagramshown.
Schematicdescriptionwithcirculation
B
Heatexchanger,DHW
7
Thermostaticvalve
39
Connectionclosed
O
Termixsensoraccelerator
11A
DHWpump,withbuiltincheckvalve
45
Flowswitch
1
Ballvalve
13
Chargingpump
48
Airvent,manual
2
Singlecheckvalve
24
Deliveredloosewithunit
63
Sieve
4
Safetyvalve
35
Ballvalve/non-returnvalve
DHW:DomesticHotWater
DCW:
DomesticColdWater
HWC:
HotWaterCirculation
BTSupply:
Buffertanksupply
BTReturn:
Buffertankreturn
5.4.2Technicalparameters
Technicalparameters
Nominalpressure:
PN16
Max.DHsupplytemperature:
120°C
Min.DCWstaticpressure:
0.5bar
Brazingmaterial(HEX):
Copper
Heatexchangerstestpressure:30bar
Soundlevel:≤55dB
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InstallationGuideTermixOneSolar
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.
6.1.2Domestichotwaterpump
Thedomestichotwaterpumpcanbeprogrammedwiththe
desiredtimeprogramme.
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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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InstallationGuideTermixOneSolar
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
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
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ProducedbyDanfossA/S©03/2012
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Danfoss Termix One Solar Operating instructions

Termix One Solar
Danfoss
Brand
Danfoss
Model
Termix One Solar
Type
Operating instructions

Danfoss Termix One Solar is an instantaneous water heater designed for heating systems with buffer accumulators, solar systems, or other heat sources where a low return temperature is preferred. It features superb heat extraction, high performance, and a compact design for wall-mounting. The patented sensor accelerator and thermostatic control valve protect against overheating and limescale formation, ensuring stable hot water temperature even with varying loads and flow temperatures.

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