BAC 3985C - Heat Transfer Section; Water Distribution System

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• Lubricatethebearingsasfollows:
– Initial Start-up: Normally,nolubricationisrequiredsincethebearingshavebeen
lubricatedatthefactorypriortoshipment.However,ifthecoolingtowerhasbeen
storedatthejobsiteormorethanthreemonths,bothbearingsshouldbelubricated
withnewgreasebeforeinitialoperation.When lubricating, purge the old grease
from the bearing by gradually adding grease until a bead of new grease appears at
the seal on the underside of the bearing.
– Seasonal Start-up:Purgethebearingswithnewgreasepriortostart-up.
– Operation:Purgethebearingswithnewgreaseeverythreemonthswhilein
operation,or2,000hours,whichevercomesrst.
– Extended Shutdown:Purgethebearingswithnewgreasebeforeandafterany
prolongedstorageordowntime.
Heat Transfer Section
Fill & Drift Eliminator
TheSeries3000hasPVCllwithintegraldrifteliminators.
Inspection & Maintenance
• Inspectandcleanthellwiththeintegraleliminatorsatleastquarterly.
• Theinspectionprocedureisasfollows:
– Shut-offthefanandthesystempump.
– Inspectthellforobstructions,damageandfouling.
• Removeanyobstructionsfromthell.
• Removeanyminorfoulingchemically.Contactyourlocalwatertreatmentconsultant
foradvice.
• Majorfoulingrequirescleaningandushing.
Water Distribution System
Hot Water Basin
Thehotwaterbasinsarelocatedonthefandeck.Thesystemwaterentersthecooling
towerthroughthehotwaterbasins(refertoFigure 6, page 19).Aseriesofnozzles,which
distributewateroverthell,arelocatedinthehotwaterbasin.Therearefourmaterials
ofconstructionforthehotwaterbasin:Galvanizedsteel,ThermosettingHybridPolymer,
Type304stainlesssteelandPultrudedFiberglassReinforcedPolyester(PFRP).