Specifications

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d.Removetheignitionelectrodeandinspectitforoxides.Cleantheoxidesofftheelectrodewithsandpaper.Inspect
theceramicinsulatorforcracksandreplacetheignitorassemblyifnecessary.
e.Removethefan/gasvalveassemblyfromtheburnerhood.Inspectforlintanddust.Ifsignicantlintanddustare
found,disassemblethefan/gasvalveassemblytoexposetheswirlplateandfaninlet(seetheexplodeddiagramin
thepartslistatthebackofthismanual).Vacuumthesepartsasrequired,beingcarefulnottodamagethevaneson
theswirlplate.
f. Removetheburnerhoodtoaccesstheburnerandthecombustionchamber.
g.Removetheburnerandvacuumanydustorlintfromtheburner.Iftheburnershowssignsofdeteriorationor
corrosion,replaceitimmediately.Inspecttheburnergasketandreplace,ifnecessary.
h.Inspecttheheatexchangerandvacuumanydebrisfoundonthepinsandothersurfaces.Cleanthecastingpinsby
ushingwithcleanwater.Asoftnylonbrushmaybeusedinaccessibleareas.Drainandushtheinsideoftheheat
exchangerandcondensatecollectorasrequired.Donotuseanycleaningagentsorsolvents.
i. Inspectthecondensatetraptoverifyitisopenandfreefromdebris.Cleanifnecessary.
j. Reinstalltheburner,burnerhoodandfan/gasvalveassembly.
k.Reconnectanywiringwhichhasbeendisconnected.
l. Inspecttheheatingsystemandcorrectanyotherdecienciespriortorestartingtheboiler.
m.FollowSectionXIStart-upandCheckoutinstructionsbeforeleavinginstallation.
n.PerformthecombustiontestoutlinedinSectionXI.
o.VerifythatthesystemPHisbetween6.5and8.5.
p.Checkforventterminalobstructionsandcleanasnecessary.