ProSelect Force Steam Gas Boiler Installation Manual
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106324-04 - 4/18
CAUTION
If,duringnormaloperation,itisnecessarytoaddwatertothisboilermorefrequentlythanonceamonth,consultaqualied
servicetechniciantocheckyoursystemforleaks.Aleakysystemwillincreasethevolumeofmake-upwatersuppliedtothe
boilerwhichcansignicantlyshortenthelifeoftheboiler.Entrainedinmake-upwateraredissolvedmineralsandoxygen.
Whenthefresh,coolmake-upwaterisheatedintheboilerthemineralsfalloutassedimentandtheoxygenescapesasagas.
Bothcanresultinreducedboilerlife.Theaccumulationofsedimentcaneventuallyisolatethewaterfromcontactingthecast
iron.Whenthishappensthecastironinthatareagetsextremelyhotandmayeventuallycrack.Thepresenceoffreeoxygen
intheboilercreatesacorrosiveatmospherewhich,iftheconcentrationbecomeshighenough,cancorrodethecastironthrough
fromtheinside.Sinceneitherofthesefailurestypesarearesultofacastingdefectthewarrantydoesnotapply.
XII. Service Instructions (continued)
Heat Exchanger Cleaning Procedure
1) Turnoffelectricalpowerandgassupplytotheboiler
2) Disconnectthedamperandventconnectorfromtheboiler.
3)Removetheupperfrontandtopjacketpanels.Ifpossible,removetherearandleftsidejacketpanels
4) Removetheburners.
5) Removetheblockedvent(“spill”)switch
6) Removethe¼-20nutsandwashersholdingtheuecollectorontotheheatexchanger.
7) Carefullyremovetheuecollectorgasketstripsandsetthemaside.
8) Removetheuecollectorfromtheheatexchanger.
9) Cleantheuepassagewaysusingastiffbristlebrush.Becertainthatallforeignmaterialisremovedfromthegaps
between the pins
10) Cleanthebottomsurfacesoftheheatexchanger
11) Putalightinthecombustionchamberandlookthroughtheuepassagesfromthetoptoverifythattheyhavebeen
thoroughlycleaned.
12) Replacetheuecollectorgasketstrips.Ifdesired,RTVsiliconesealantwitha500°Fintermittentdutytemperaturemay
besubstitutedforthisropegasket.Theuecollectormustbethoroughlysealedtotheheatexchanger.
13) Replacethe¼-20nutsandwashersthatholddowntheuecollector
14) Reattachallthejacketcomponents.
15) Reinstallburners,beingcarefultoputthepilotmainburnerinitsoriginallocation.
16) Replacetheblockedventswitch.
17) Reconnectthedamperandventsystem.