Bermuda Gas Fired Steam Boiler Installation Manual
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WARNING
SOOTDEPOSITSINTHEFLUEPASSAGESAREASIGNTHATTHEBOILERMAYBEOPERATING
ATHIGHCARBONMONOXIDE(CO)LEVELS.AFTERCLEANINGTHEBOILEROFSOOTDEPOSITS,
CHECKTHECOLEVELINTHEFLUEGASTOINSURETHATTHEBOILERISOPERATINGPROPERLY.
IfitisnecessarytocheckCO,useacombustionanalyzer,orotherinstrumentwhichisdesignedtomeasureCOinue
gas.ACO“sniffer”designedfortestingCOlevelsinambientaircannotbeusedtocheckboilercombustion.Takeauegas
samplebyinsertingasampleprobethroughthedraftdiverteropeningandintotheuecollectorsothatthesampleistaken
intheareadirectlyovertheheatexchanger.Donottakeasampleuntiltheboilerhasbeenringforatleastveminutes.
AnormalCOreadingforaBSIseriesboilerislessthan50ppm(0.005%).Areadingofmorethan100ppm(0.01%)is
indicativeofacombustionproblem.
SomecausesofexcessiveCOinclude:
• Incorrectlysizedmainburneroriceforthealtitudeatwhichboilerisinstalled
• Crookedorout-of-roundoriceholes(neverattempttodrilloriceforthisboilerintheeld)
• Partiallypluggeduepassages
• Impropermanifoldpressure
• Foreignmaterialinburnerventurisorburnerports
• Leakinsealbetweenuecollectorandheatexchanger
• Inadequatesupplyofcombustionair
12) Replacetheuecollectorgasketstrips.Ifdesired,RTVsiliconesealantwitha500Fintermittentdutytemperaturemay
besubstitutedforthisropegasket.Theuecollectormustbethoroughlysealedtotheheatexchanger.
13) Replacethe¼-20nutsandwashersthatholddowntheuecollector
14) Reattachallthejacketcomponents.
15) Reinstallburners,beingcarefultoputthepilotmainburnerinitsoriginallocation.
16) Replacetheblockedventswitch.
17)Reconnectthedamperandventsystem.