Crown Bermuda Installation Manual

4) Donotinstallthisboilerinalocationwheregasolineorotherammablevaporsorliquidswillbestoredorused.Donot

installthisboilerinanareawherelargeamountsofairbornedustwillbepresent,suchasaworkshop.

5) Theboilershouldbelocatedasclosetothechimneyaspossible.

6) Donotinstallthisboilerdirectlyonasurfacethatmaygetwet.Raisetheboileronapad.

V Air for Combustion and Ventilation

Sufcientfreshairmustbesuppliedforcombustion,ventilationanduegasdilution.Provisionsforcombustion,ventilation

anduegasdilutionairforgasutilizationequipmentventedbynaturaldraftmustbemadeinaccordancewithlocalbuilding

codesor,inabsenceofsuchcodes,inaccordancewithsections5.3.3and5.3.4(“AirforCombustionandVentilation”)ofthe

National Fuel Gas Code,NFPA54/ANSIZ223.1.

Toensureanadequatesupplyofcombustion,ventilationanduegasdilutionairsupply,startbydeterminingwhether

theboileristobeinstalledinabuildingofunusuallytightconstruction.Agooddenitionofabuildingofunusuallytight

constructionisonewhichhasallofthefollowingfeatures:

• Wallsandceilingsexposedtooutsideatmospherehaveacontinuouswatervaporretarderwitharatingof1permor

lesswithopeningsgasketedandsealed

• Weatherstrippinghasbeenaddedonopenablewindowsanddoors

• Caulkingandsealantsareappliedtoareassuchasjointsaroundwindowanddoorframes,betweensoleplatesand

oors,betweenwall-ceilingjoints,betweenwallpanels,atpenetrationsforplumbing,electrical,andgaslines,and

atotheropenings.

FIGURE2:BSIBOILERS-CLEARANCESTOALL

TYPESOFCOMBUSTIBLECONSTRUCTIONAND

NONCOMBUSTIBLECEILINGS,WALLS,AND

DOORS.