EHFA400S36 User Manual

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Rinnai 14 HotoElectricStorageWaterHeaterOIM

ThisapplianceMUSTBEinstalledbyaqualiedpersoninaccordancewith:

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Manufacturersinstallationinstructions

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CurrentAS/NZS3000WiringRules

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CurrentAS/NZS3500.4PlumbingandDrainage-HeatedWaterServices

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Alllocalregulatoryrequirements

ThisapplianceisNOTsuitableforuseasaspaorswimmingpoolheater.

LOCATION

TheRinnaiHotoelectricstoragewaterheaterrangehaveaningressprotectionratingofIPX4making80Lto

400Lmodelssuitableforinternalorexternalinstallation.However,Hoto25Land50Lmodelscanonlybeinstalled

indoors.

Thewaterheatershouldbeplacedascloseaspracticabletothemostfrequentlyusedhotwateroutletpointor

pointstominimizethedelaytimeforhotwaterdelivery.Thiswillusuallybethekitchentap.Forinstallationswhere

thedistancebetweenthewaterheaterandtheoutletsisconsiderable,aowandreturnsystemcanbeusedwhich

willminimizethewaitingtimeforhotwaterdelivery.

Itisrecommendedthatthewaterheaterisinstalledatgroundoroorlevel.ItMUSTBEinstalledinavertically

uprightposition.ThewaterheaterMUSTBEaccessiblewithouttheuseofaladderorsca󰀨old.Installationintoroof

spacesMUSTcomplywithlocalregulatoryauthorityrequirements.

EnsurethePTRvalve,isolatingvalves,accesscovers,thermostatsandheatingelementshavesu󰀩cientclearances

andareaccessibleforserviceandremoval.TheinformationontheratingplatesMUSTalsobereadable.

The water heater MUST BE installed in free standing mode on a level and stable base in a manner that is

acceptabletolocalauthorities.Avoidsituationsthatmayresultinpoolingofwateraroundthebaseofthewater

heater.

Wherepropertydamagecanoccurasaresultofwaterleakageinanindoorinstallation,thewaterheaterMUST

BEinstalledwithasafetray(overowtray)anddrain.Construction,installationanddrainingofthesafetrayMUST

complywithlocalregulatoryrequirementsand.AS/NZS3500.4alsorequirestheuseofasafetrayforparticular

situations.

WATER QUALITY

Thewaterqualityofmostpublicsuppliesissuitableforthewaterheater.Waterqualityfromborewellsisgenerally

unsuitable.Refertothe‘WarrantyConditions’forwaterqualityparametersandhowtheya󰀨ectwarranty.Ifindoubt

aboutwaterquality,haveitcheckedagainsttheparameterslistedinthewarrantyconditions.

Ifsludgeorforeignmatterispresentinthewatersupply,asuitablestrainerorltershouldbeincorporatedinthe

watersupplytothewaterheater.

Scalingwaterisdenedashavingatotalhardnessinexcessof200mg/litre(expressedascalciumcarbonate)or

aSaturationIndexinexcessof+0.4.AreasthathaveascalingwatersupplyincludeSouthAustraliaandWestern

Australia.Inascalingwatersupply,calciumcarbonateandpossiblyothercompoundsaredepositedoutofthe

waterontoanyhotmetallicsurfacesandformascale.

InareasofscalingwateranECVMUSTBEttedonthecoldwaterlinebetweenthenon-returnvalveandthe

connectiontothewaterheatertoprotectthePTRvalveandthewaterheater.Localregulatoryauthoritiesmay

requirethatanECVbetted.TheECVistobesuppliedandttedbytheinstaller.

MAINS PRESSURE

TheHotoelectricstoragewaterheaterrangeutilisemainspressurebyconnectingdirectlytothemainswater

supply.IfthemainswatersupplypressureinyourareaexceedstheratedpressureofthewaterheateraPLV

MUSTBEtted.

Themainswatersupplypressureshouldbegreaterthan350kPafortruemainspressureoperationalperformance

tobeachieved.

INSTALLATION

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User Manual - Page 14