ProSelect Force Steam Gas Boiler Installation Manual

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106324-04 - 4/18
VI. Venting
Ventinstallationmustbeinaccordancewithlocalbuildingcodes,orthelocalauthorityhavingjurisdiction,ortheNational Fuel
Gas Code,ANSIZ223.1/NFPA54.
1. AtypicalventinstallationisillustratedbyFigure3.Thecomponentsofventinstallationaretheventdamper(ifused),
ventconnectorandchimney.
2. Installventdamper(seeFigure4)asfollows:
a) Openventdampercartonandremoveinstallationinstructions.Readtheinstructionsthoroughlybeforeproceeding.
Verifythatventdamperissamesizeasdraftdiverteroutlet.SeeFigure1.Unpackventdampercarefully.Do not
force closed damper blade. Forcingventdamperclosedmayresultindamagedgeartrainandvoidwarranty.
b) Ventdamperisfactoryshippedhavingapproximately¾”diameterholeintheventdamperblade,whichmust be left
openforboilersequippedwithstandingpilot,andshouldbepluggedonboilerswithanintermittentpilotsystem,
usingtheplugsuppliedwiththedamper.
Mounttheventdamperontheuecollarwithoutmodicationtoeitherandsecurewithsheetmetalscrews.Make
surescrewsdonotinterferewithdamperbladeoperation.Ventdamperbladepositionindicatormustbevisibleto
users.
c) Thedamperwireharnessisshippedwiredintotheboilerjunctionbox.Plugthelooseendofthisharnessintothe
damperandsecuretheexibleconduittothedamperusingaconnectornutprovided.
d) Installventconnectorpipeandventttingsfromventdamperoutlettochimneyorgasvent.Securewithsheetmetal
screwsandsupportasrequired.
3. GasVentTermination
Gasventslocatednotlessthan8ft.(24m)fromaverticalwallorsimilarobstructionshallterminateabovetheroofin
accordancewithFigure5andTable2.
FIGURE 3: FORCESTM BOILER TYPICAL VENT SYSTEM INSTALLATION AND COMPONENTS