EHFA400T48 Operation & Installation Manual

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Rinnai 15 HotoElectricStorageWaterHeaterOIM

THERMOSTAT SETTING

Thethermostatsettingcanbeadjustedbetween60°Cand70°C.Ithasbeenfactorypre-setto70°C.

WARNING

Thisappliancemaydeliverwaterathightemperature.RefertothePlumbingCodeofAustralia

(PCA), local requirements and installation instructions to determine if additional delivery

temperature control is required.

WARNING

ThethermostatsettingsMUST ONLYbeadjustedbyaqualiedperson.

REDUCING THE RISK OF SCALDING

Thiswaterheatercandeliverwaterattemperatureswhichcancausescalding.Children,disabledandtheelderly

areatthehighestriskorbeingscalded.

Local regulatory requirements and the requirements of AS/NZS 3500.4 MUST BE considered regarding

temperaturelimitationsofhotwater deliveredtoareasusedprimarilyforpersonalhygienesuch asbathrooms

andensuites.Thedeliverytemperaturemaybelimitedto45°Cforearlychildhoodcentres,primaryandsecondary

schoolsandnursinghomesorsimilarfacilitiesfortheyoung,aged,sickorpeoplewithdisabilitiesand50°Cforall

otherbuildings.ThesetemperatureswillreducetheriskofscaldinjuryandcanbeachievedbytheuseofaTLD,

forexampleathermostaticmixingvalveortemperingvalve.

RinnairecommendthatanapprovedTLDisttedintothehotwaterpipeworkfromthewaterheatertoareasused

primarilyforpersonalhygienesuchasbathroomsandensuitestoreducetheriskofscalding.

Refertotheinstallationcongurations"HotWaterPlumbingSystemExample-WithTLD"onpage12and"Hot

WaterPlumbingSystemExample/Flow&ReturnPipeWork-WithTLD"onpage13.

PLUMBING CONNECTIONS

Connections to the water heater

RefertoSpecicationsfortheplumbingconnectionsizesandlocation(Table1)andthespeciedpressureratings

ofvalves(Table2).Referalsotothediagramsunder“InstallationCongurations”.

WARNING

ValveswithpressureratingsotherthanspeciedMUST NOTbeused.

Anisolationvalveandnon-returnvalveMUSTBEttedinthecoldwatersupplytothewaterheatersothewater

heatercanbeisolated.Combinationisolationandnon-returnvalvesuchas'Duo'or'Trio'valvesaresuitablefor

thispurpose.

IsolationvalvesMUSTNOTbetteddirectlytotheappliance.Usedisconnectionunionsbetweenthewaterheater

andthevalvestoallowthewaterheatertobedisconnectedfrompipeworkatalaterdate.

Purgepipework toremove swarf andother foreign matterbefore nalconnection to thewater heater toavoid

damagetothewaterheater.

IfolivecompressionttingsareusedforconnectionstheolivesMUSTBEmetallicsuchasbrassorcopper.Only

approvedthreadsealingtapeorsealantshouldbeused.

Water Pipes

Pipesizingshouldbecarriedoutbypersonscompetenttodosoforeachindividualinstallationinaccordancewith

localregulatoryrequirementsandtakeintoconsiderationthespecicationsofthewaterheater.

ThecoldsupplypipetoandhotwaterpipefromthewaterheaterMUSTBEinsulatedinaccordancewithlocal

regulatoryrequirementsandAS/NZS3500.4tooptimiseperformanceandenergye󰀩ciency.InsulationMUSTBE

weatherproofandUVresistantifexposed.

Thehotwaterpipefromtheoutletofthewaterheatershouldalsobeconguredintheshapeofa“heattrap”toaid

energye󰀩ciencyinaccordancewithlocalregulatoryrequirementsandAS/NZS3500.4.

Topreventdamagetothewaterheaterwhenattachingpipeclipsorsaddlestothejacket,itisrecommendedthat

selfdrillingscrewswithamaximumlengthof12mm areused.Ifdrillingisrequiredtakeextreme care NOT to

penetratetheinnercylinder.DamagetotheinnercylinderisNOTcoveredunderwarranty.

INSTALLATION

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Operation & Installation Manual - Page 15