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Chapter5ReplacementInstructions
MaincomponentsReplacementInstructions
6)RemovetheFanassemblyinthedirectionofthe
arrow.
15.LoosenwaterpipenutconnectedwithHeat
Exchanger.
16.Removefourscrewsonthetopofcase.
17.LoosentenscrewstoremoveHeatExchanger.
PullouttheHeatExchangerinsidecase.
18.Disassemblethescrewsofthedisassembledheat
exchangerandassembledbrackettoremovethe
bracket.ReplacetheHeatExchangerassemblywith
theBurnerandExhaustPipe.Checktheo-ringsfor
damage,ifdamaged,replacewithnewo-rings.
19.Assembleinthereverseorderasthepartwas
removed.
20.Openthegasshutovalve.
21.Openallwatervalves.
22.Turnthepoweron.(Usethemanualswitch)
23.Turntheunitonandensureproperoperation.
O-ring