ONHW30NG60 User Manual

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Page23

Version1.0Aug2018

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TesttheUnit

□ Purge air andforeignobjectsinthe gas& watersupplylinesbefore connecting the supply lines towater

heater. 

□ TurnthegasandwatersuppliesON.Testforleaks.

□ Isolate the gas supply. Remove test point screw located at the gas inlet connection and attach pressure

gauge.

□ Turnonthehotwaterheater&thegassupply. 

□ Ifremotecontrolsarefitted,turntheremotecontrolon.Selectmaximumdeliverytemperatureandopen

ALL availablehot water outlets in the house including the shower.Ifremotecontrolisnotfitted,simply

openallavailablehotwateroutlets.(CAUTION:Ensurebuildingoccupantsdonothaveaccesstohotwater

outletsduringthetest)

□ Operateallothergasappliancesattheirmaximumgasrate,inaccordingtotheappliancesmanufacturers’

instructions.

□ Withallgasappliances&hotwaterheateroperatedattheirmaximum gas rate, the gas pressuregauge

shouldreadbetween1.13‐5.0kPaforNaturalGas(NG),andLPGshouldbe2.75–7.0kPa.

□ Ifpressurereadslower,thegassupplyisinadequateandtheapplianceswillnotperformtospecification.If

istheinstaller’sresponsibilitytocheckthegasmeter,serviceregulatorandpipeworkforcorrectoperation

&pipesizeandrectifyasrequired.Thegasregulatorinthehotwaterheateriselectronicallycontrolledand

factorypreset,andundernormalcircumstances,DOESNOTneedadjustmentduringinstallation.

□ Closeallhotwateroutletsincludingtheshower. 

□ Inspectandcleanthestrainerlocatedatthewaterheatercoldwaterinletconnection.Thisproceduremay

needtoberepeatedtoensurethestrainerremainsclean,especiallyatasiteofanewdwelling.

□ Ifremotecontrolisfitted,itisnecessarytotesttheallfunctions&operationsoftheremotecontrol.

□ Confirm the hot water heater delivery temperature by using a thermometer. If remote control is fitted,

ensuretemperatureexceeding50°Ccannotbeselectedatbathroomoren‐suiteremotecontrol.  

□ Afteralltestsarecompleted,theinhabitantsof the dwellingshouldbemadeawareof the functions and

operationsofthehotwaterheaterandremotecontrol(iffitted). 

□ EnsuretheProductRecordonpage44isfilledinandthisbookletishandedtotheinhabitants. 

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User Manual - Page 24