ONHW30NG60 User Manual

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Page6

Version1.0Aug2018

Table1showsthegasconsumptionforeach model.Gaspipesizeisimportantmustbeproperlysizedinorderto

gainthefullperformanceofthehotwaterheater.AnapprovedpipesizechartsuchasthemodelshowninAS/NZS

5601shouldbeconsidered. 



WaterpipesizeandlayoutshouldbeinaccordancewithAS/NZS3500.4.Allhotwaterpipeworkshouldbeinsulated

foroptimalperformanceandenergyefficiency.Waterheaterandwaterlinesshouldbeprotectedfromexposureto

freezingtemperatures–seeFigure3.



Model

Number

Gas

Consumption

(MJ/hr)

WaterSupply

Pressure(kPa)

Weight

(kg)

Fittings

Min. Max. Hot Cold Gas Condensate

ONHW26NG50

/ONHW26LP50

/

ONHW26NG60

/

ONHW26LP60



205 20 1000 19.3 R¾ R¾ R¾ ‐

ONHW30NG60  235 20 1000 21.4 R¾ R¾ R¾ ‐

Table1

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User Manual - Page 7