series 3000 structural support

B9 SERIES 3000 COOLING TOWER

B11 BENEFITS

B13 CONSTRUCTION DETAILS

B15 CUSTOM FEATURES & OPTIONS

Series 3000 Cooling Tower

B28 ENGINEERING DATA

B35 STRUCTURAL SUPPORT

B37 ALTERNATIVE STRUCTURAL SUPPORT

T A B L E O F C O N T E N T S

P R O D U C T & A P P L I C A T I O N H A N D B O O K 2 0 1 2 B8

B9 Q U E S T I O N S ? C A L L 4 1 0 . 7 9 9 . 6 2 0 0 O R V I S I T W W W . B A L T I M O R E A I R C O I L . C O M

BAC’s flagship cooling tower, the Series 3000, is the standard of the industry. The induced draft crossflow design has been refined over the product’s 38-year lifespan through continuous innovative engineering and manufacturing expertise. The Series 3000 has provided world class solutions to tens of thousands of global customers ranging from data centers, to steel mills, to skyscrapers, to critical care facilities. The Series 3000 is the benchmark of evaporative cooling, backed by the BAC customer experience and the most comprehensive warranty in the industry.

IBC Compliant


BAC’s Series 3000: The Industry Standard

Δ Δ Δ Δ Δ

Easiest to Maintain

Low Environmental

Impact

Flexible Configurations

Most Reliable Year-Round Operation

Variety of Materials of Construction

Large Range of CTI Certified Capacities 163 to 1,350 Nominal Tons in a Single Cell

Up to 4,500 USGPM for Process Applications


Series 3000 Benefits

› Low Environmental Impact ` ENERGY EFFICIENT

• MeetsorexceedsASHRAEStandard90.1energyefficiencyrequirements

• Premiumefficient/inverterdutyfanmotors

• Gravitydistributionsystemwithlowpumpheadrequirements

` SOUND REDUCTION OPTIONS

• Standardfanishighefficiencyandlowsound

• Forfurtherreducedsoundlevels,LowSoundFans,WhisperQuietFans,andsoundattenuationareavailableoptions

› Durable Construction ` MeetswindandseismicrequirementsoftheInternationalBuilding

Code(IBC)

` Designedtowithstandwindloadsupto60psf,upgradedunitsdesignedtowithstand82psf

` SeismicallyverifiedthroughdynamicshaketabletestinguptoaSDSof3.10g

` ListedonCalifornia’sOfficeofStatewideHealthPlanningandDevelopment(OSHPD)pre-approvedequipmentlist

` CasingpanelsconstructedofcorrosionresistantFRPwithrigidframeconstruction

` Enhancedlongevitywithavarietyofdurablematerialsofconstruction(seepage B15fordetails)

› Reliable Year-Round Operation ` Separateairintakelouversforeasyvisualinspectionoftheair-water

interface

` BALTIDRIVE® POWER TRAIN FAN SYSTEM

• BackedbyBAC’scomprehensive5-yearmotoranddrivewarranty

• Corrosionresistantcastaluminumsheaveswithspeciallydesignedpowerbandbelts

• Coolingtowerdutymotorsdesignedforhostileenvironments

Durable Frame Construction

Shake Table Tested Series 3000

BALTIDRIVE® Power Train Fan System


Internal Walkway and Large Access Door for Easy Maintenance

› Easy Maintenance ` Crossflowconfigurationprovidesdirectaccessforeasymaintenance

` BALTIDRIVE®PowerTrainusesstate-of-the-arttechnologytoeasemaintenance

` Patentedhygieniccoldwaterbasinisslopedattheairintakestoeliminatestagnantwaterandreducebiologicalgrowth

` Fillsurfaceiselevatedabovetheslopedcoldwaterbasinfloortofacilitateflushingofdirtanddebris

` Hingedaccessdoorsprovideeasyaccesstothecoldwaterbasinandfandrivesystem

` Combinedinletshieldsblocksunlight,reducingthepotentialforalgaegrowthinthecoldwaterbasin(option)

` Factoryassembledlouverfaceplatforms,internalserviceplatforms,andinternalwalkwayssimplifymaintenance(option)

› Easy Installation ` Riggingguidesensureproperalignmentandreduceriggingtime

` Flexibleinlet/outletpipingconnectionlocationsensureproperfitforanyapplication

` Adaptablesteelsupportconfigurationoptions,utilizingpre-existingsupportsteel

` Knockdownunitsavailableforfieldassembly

` EASYCONNECT®PipingArrangementreducesinstallationcostsbyeliminatingoverheadpipingandpipingsupportrequirements(option)

` Basinlessconstructionability,idealforinstallationsusingacommonsumpformultipletowercells(option)

` SinglepointwiringofthefanmotorandvibrationcutoutswitchsimplifiesfieldinstallationwhenorderedwithBACControls(option)

Louver Face Platforms

Flexible Piping Arrangement


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Series 3000 Construction Details

6


Suction Strainer` Designedtoofferoptimumsystemprotectionwhile

stillofferingafull50%freeareatoallowefficientsystempumpoperation

` Anti-vortexingdesignbuiltintoallBACstrainers

` Strainercanremovedwiththeflipofasinglelatchforeasycleaningandmaintenance

Air Intake Louvers` Corrosionresistant

` Maintenancefree

` UV-resistantfinish

BACross® Fill with Integral Drift Eliminators` Highefficiencyheattransfersurface

` Polyvinylchloride(PVC)

` Impervioustorot,decayandbiologicalattack

` Flamespreadratingof5perASTME84

` Elevatedoffofthecoldwaterbasin

Hygienic Cold Water Basin` Slopedattheairintakefacetoeliminatestagnant

water

` Slopedtowardadepressedsumpforeasycleaning

Two Large Access Doors (Not Shown)` Inwardhingeddooroneachendwall

` Easysafeaccesstotheinterioroftheunit

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galvanizedsteelframe

` MeetswindandseismicrequirementsoftheInternationalBuildingCode(IBC)

` ShaketabletestedandverifiedwithseismicratingsuptoaSDSof3.10g

` Designedtowithstandwindloadsofupto82psf

FRP Casing Panels` Corrosionresistant

` Maintenancefree

` UV-resistantfinish

BALTIDRIVE® Power Train` Premiumquality,solidbacked,multi-groovebelt

` Corrosionresistantcastaluminumsheaves

` Heavy-dutybearingswithaminimumL10of80,000hours

` Premiumefficient,coolingtowerdutymotorsfitforVFDapplications

` 5-yearmotoranddrivewarranty

Low Horsepower Axial Fan ` Quietoperation

` Highefficiency

` Corrosionresistant

Water Distribution System` Steelcoversineasytoremovesections

` Lowpumpheadgravitydistributionbasins

` Largeorifice,non-clognozzles

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› Materials of ConstructionDetermining the appropriate material of construction for a project depends on several factors, including water quality, climate and environmental conditions, availability of time and manpower for maintenance, unit lifetime requirements, and budget. BAC provides the widest variety of material of construction options in the industry and has the ability to provide a solution to meet all conditions and budgets. Options such as the TriArmor® Corrosion Protection System and EVERTOUGH™ Construction provide superior corrosion resistance and durability at a tremendous value.

` STANDARD CONSTRUCTION

G-235millgalvanizedsteelistheheaviestcommerciallyavailablegalvanizedsteel,universallyrecognizedforitsstrengthandcorrosionresistance.Toassurelong-life,aG-235millgalvanizedsteelframewithfiberglassreinforcedpolyester(FRP)casingpanelsandlouversisusedasthestandardmaterialofconstruction.Thestructuralintegrityoftheunitisprovidedbyitsstrongsteelframe.Series3000standardconstructionhasbeenseismicallyverifiedbyshaketabletestinginanindependentlaboratoryuptoanSDSof1.40gandcanwithstandwindloadsofupto60psf,provingitsframeconstructionisdesignedforextremedurability.Withpropermaintenanceandwatertreatment,G-235galvanizedsteelandFRPwillprovideanexcellentservicelifeundertheoperatingconditionsnormallyencounteredincomfortcoolingandindustrialapplications.

` TRIARMOR® CORROSION PROTECTION SYSTEM (OPTION)

TheTriArmor®CorrosionProtectionSystemconsistsofheavygaugeG-235galvanizedsteelpanelsfullyencapsulatedbyathermosettinghybridpolymerandfurtherprotectedbyapolyurethanebarrierappliedtoallsubmergedsurfacesofthecoldwaterbasin.Thetriplelayersofprotectionformacompletelyseamlesscoldwaterbasinforthemostleakresistantanddurablebasinintheindustry.Othercomponents,suchasthestrainer,withinthebasinwillbeconstructedofType304StainlessSteel.TheTriArmor®CorrosionProtectionSystemwasspecificallydesignedforevaporativecoolingapplicationsandreleasedin2006afteradecadeofextensiveR&Dandfieldtesting.Todate,thereareover1,000successfulinstallationsinNorthAmerica.Everybasinisleaktestedatthefactoryandwarrantedagainstleaksandcorrosionfor5years.

Series 3000 Custom Features & Options

Standard Construction Installation

Application of TriArmor® Corrosion Protection System

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TriArmor® Corrosion Protection System Triple Layer Protection of the Cold Water Basin

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` EVERTOUGH™ CONSTRUCTION (OPTION)

EVERTOUGH™Constructioncombinesthemostcorrosionresistantmaterialstoprovidethebestvalueincorrosionprotection.Specifically,acombinationoftheTriArmor®CorrosionProtectionSystem,thermosettinghybridpolymer,andfiberglassreinforcedpolyester(FRP)casingpanelsandlouversareused.EVERTOUGH™Constructionunitsalsoincludepultrudedfiberglassreinforcedpolyesterhotwaterbasins,makingupthemostcorrosionresistantconstructionavailableonthemarket.EVERTOUGH™ConstructionisbackedbyacomprehensiveLouver-to-LouverSM5-yearwarranty,whichcoversALLcomponentsfromthefantothecoldwaterbasin,fromlouvertolouver,includingthemotor.A5-yearleakandcorrosionwarrantyforthebasinisalsoprovidedwiththeTriArmor®CorrosionProtectionSystem.

` THERMOSETTING HYBRID POLYMER (OPTION)

Athermosettinghybridpolymer,usedtoextendequipmentlife,isappliedtoselectG-235millgalvanizedsteelcomponentsoftheunit.ThepolymerizedcoatingisbakedontotheG-235millgalvanizedsteelandcreatesabarriertothealreadycorrosionresistantgalvanizedsteel.Thethermosettinghybridpolymerhasbeentestedtowithstand6,000hoursina5%saltspraywithoutblistering,chipping,orloosingadhesion.

` STAINLESS STEEL (OPTION)

SeveralType304stainlesssteelmaterialofconstructionoptionsareavailable.

• WELDED TYPE 304 STAINLESS STEEL COLD WATER BASINAType304weldedstainlesssteelcoldwaterbasinisavailable.AllsteelpanelsandstructuralmembersofthecoldwaterbasinareconstructedfromType304stainlesssteel.Seamsbetweenpanelsinsidethecoldwaterbasinarewelded,providinganadvantageoverboltedstainlesssteelcoldwaterbasinsforminimizingsusceptibilitytoleaksatbasinseams.Thebasinisleaktestedatthefactoryandweldedseamsareprovidedwitha5-year,leak-proofwarranty.

• STAINLESS STEEL HOT WATER BASINThehotwaterbasinandbasincoversareconstructedofType304stainlesssteel.

Welded Type 304 Stainless Steel Cold Water Basin

EVERTOUGH™ Construction Installation

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• JE PREMIER SERIES®AllunitstructuralelementsandthehotandcoldwaterbasinsareconstructedofType304stainlesssteel.Seamsbetweenpanelsinsidethecoldwaterbasinarewelded,providinganextremeadvantageoverboltedcoldwaterbasinsforminimizingsusceptibilitytoleaksatbasinseams.Thebasinisleaktestedatthefactoryandweldedseamsareprovidedwitha5-yearleak-proofwarranty.CasingpanelsandairintakelouversareconstructedofcorrosionandUV-resistantfiberglassreinforcedpolyester(FRP).EachcoolingtowerprovidedwiththeJEPREMIERSERIES®ConstructionisbackedbyacomprehensiveLouver-to-LouverSM5-yearwarranty,whichcoversALLcomponentsfromthefantothecoldwaterbasin,fromlouvertolouver,includingthemotor.

` BASINLESS UNIT CONSTRUCTION (OPTION)

ThebasinlessunitconstructionoptionenablesSeries3000CoolingTowerstobedirectlyinstalledonneworexistingcoldwaterbasins.Thiscustomfeaturereducesmaintenancecostsbyeliminatingtheintegralbasinfromtraditionalunits.Itsimplifiespipingandpumpingrequirementsofmulti-cellinstallations,eliminatesconcernforbasincorrosion,andprovidesacost-effectivesolutionformanyfield-erectedreplacementprojects.BACistheonlyleadingevaporativecoolingequipmentmanufacturertoprovidebasinlessconstructionforfactoryassembledequipment.

` SEISMIC/WIND UPGRADED STRUCTURE (OPTION)

Selectsteelpanelsandstructuralmembersareupgradedforhigherseismicandwindloadapplications.AnupgradedSeries3000iscertifiedtowithstanduptoanSDSof3.10gandwindloadsof82psf.AllBACupgradedunitsareshaketabletestedbyanindependentlaboratorytocertifythemostaccurateseismicratingsensuringthattheunitwillremainoperablefollowingaseismicevent.

` STANDARD FIBERGLASS REINFORCED POLYESTER (FRP) CASING PANELS

UsedwithBAC’sdurableframeconstruction,FRPcasingpanelsofferamoredurablecorrosionresistantunit.FRPcasingpanelsareakeycomponentduetotheircorrosionresistantproperties.

` STEEL CASING PANELS AND LOUVERS (OPTION)

SteelcasingpanelsandlouversareavailableinG-235millgalvanizedsteel,thermosettinghybridpolymer,andstainlesssteel.


Basinless Construction

Seismic/Wind Upgraded Structure with Fiberglass Reinforced (FRP) Casing Panels

JE PREMIER SERIES® Construction

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› Drive System OptionsThe fan drive system provides the cooling air necessary to reject unwanted heat from the system to the atmosphere. All BAC drive systems use premium efficient cooling tower duty motors and include BAC’s comprehensive 5-year motor and drive warranty. Cooling tower duty motors are specially designed for the harsh environment inside a cooling tower and have permanently lubricated bearings, drastically decreasing the maintenance requirement of the motor. BAC belt drive systems are the most durable and maintenance friendly drive systems on the market, including single nut adjustment for belt tensioning to make belt tensioning simple.

` STANDARD BALTIDRIVE® POWER TRAIN

TheBALTIDRIVE®PowerTrainutilizesspecialcorrosionresistantmaterialsofconstructionandstate-of-the-arttechnologytoensureeaseofmaintenanceandreliableyear-roundperformance.ThisBACengineereddrivesystemconsistsofaspeciallydesignedpowerbandandtwocastaluminumsheaveslocatedatminimalshaftcenterlinedistancestomaximizebeltlife.Ascomparedtoageardrivesystem,thisspeciallyengineeredbeltdrivesystemprovidesmanyadvantages.TheBALTIDRIVE®PowerTrainrequiresonlyperiodicinspectionofcomponentsandbelttensioning,whichissimplewithasinglenutadjustment,andrequireslessdowntime.Onlyfanbearinglubricationisrequiredforroutinemaintenance.Beltdrivesystemsalsohavetheaddedadvantageofbeingsuitableforvariablefrequencydrive(VFD)applicationswithoutrequiringexpensiveoptionalaccessories.

` BALTIGUARD™ FAN SYSTEM (OPTION)

TheBALTIGUARD™FanSystemconsistsoftwostandardsingle-speedfanmotoranddriveassemblies.Onedriveassemblyissizedforfullspeedandload,andtheotherissizedapproximately2/3speedandconsumesonly1/3thedesignhorsepower.Thisconfigurationprovidesthereservecapabilityofastandbymotorintheeventoffailure.Asaminimum,approximately70%capacitywillbeavailablefromthelowhorsepowermotor,evenonadesignwet-bulbday.Controlsandwiringarethesameasthoserequiredforatwo-speed,two-windingmotor.RedundantmotorsareavailablebyincreasingthesizeofthestandbyfanmotoroftheBALTIGUARD™FanSystemtothesizeofthemainmotor.Thisprovides100%motorredundancyandthegreatestlevelofreliability.

BALTIDRIVE® Power Train Fan System

BALTIGUARD™ Fan System Provides Built in Redundancy

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` BALTIGUARD PLUS™ FAN SYSTEM (OPTION)

TheBALTIGUARDPLUS™FanSystembuildsontheadvantagesoftheBALTIGUARD™FanSystembyaddingavariablefrequencydrive(VFD)toeithertheponyorthemainmotor,dependingonsystemrequirements.Thisoffersthebenefitsofadditionalcapacitycontrolandenergysavings,alongwiththeredundancyofferedbytheBALTIGUARD™FanSystem.Alternatively,aVFDcanbeaddedtoboththeponyandmainmotorforcompletecapacitycontrolandredundancyunderanyload.

` GEAR DRIVE SYSTEM, CLOSE-COUPLED MOTOR (OPTION, STANDARD ON 31301C)

AgeardrivesystemisavailableasafandriveoptionontheSeries3000.Boththegeardriveandcouplingsareselectedwitha2.0servicefactor.Gearconstructionincludesanickel-alloysteelshaft,casehardenedgears,selflubrication,andasinglepiece,grayironhousing.Thisdrivesystemshipscompletelyinstalledandaligned.

` GEAR DRIVE SYSTEM, EXTERNALLY MOUNTED MOTOR (OPTION)

AgeardrivesystemwithaTEFCmotormountedoutsidetheairstreamisalsoavailableontheSeries3000.Anon-corrosivecarbon-fibercompositedriveshaftwithstainlesssteelhubsisselectedwitha2.0servicefactor.Themotoranddriveshaftshipseparatelyforeasyfieldinstallation.

` VIBRATION CUTOUT SWITCH (OPTION)

Afactorymountedvibrationcutoutswitchisavailabletoeffectivelyprotectagainstrotatingequipmentfailure.BACcanprovideeitheramechanicalorsolid-stateelectronicvibrationcutoutswitchinaNEMA4enclosuretoensurereliableprotection.Additionalcontactscanbeprovidedoneitherswitchtypetoactivateanalarm.Remoteresetcapabilityisalsoavailableoneitherswitchtype.

` EXTENDED LUBRICATION LINES (OPTION)

Extendedlubricationlinesareavailableforlubricationofthefanshaftbearings.Fittingsarelocatedontheexteriorcasingpanelnexttotheaccessdoor.


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Extended Lubrication Lines with Grease Fittings Located by the Access Door


Electric Water Level Control

Mechanical Water Level Control

› Cold Water BasinThe cooling tower water collects in the cold water basin which provides the required head pressure for the cooling system pump. The Series 3000 cold water basin includes BAC’s patented hygienic cold water basin design. During operation, BAC’s patented hygienic cold water basin eliminates any stagnant water zones, which are susceptible to biological growth.

` STANDARD MECHANICAL WATER LEVEL CONTROL

Mechanicalmake-upvalvesmustoperatecontinuouslyinthemoistandturbulentenvironmentexistingwithinevaporativecoolingequipment.Duetothisenvironment,theoperationofthevalvemustbesimple,andthevalvemustbedurable.BAC’shighqualitymechanicalwaterlevelcontrolassemblyisstandardwithallunits,andhasbeenspeciallydesignedtoprovidethemostreliableoperationwhilebeingeasytomaintain.Thisaccessoryisomittedforremotesumpapplications.

` ELECTRIC WATER LEVEL CONTROL (OPTION)

BAC’sElectricWaterLevelControl(EWLC)isastate-of-the-artconductivityactuated,probetypeliquidlevelcontrol.ThehermeticallysealedEWLCisengineeredandmanufacturedspecificallyforuseinevaporativecoolingsystemsandisequippedwithanerrorcodeLEDwhichilluminatestoindicatestatus,includingwhenthewaterand/orprobesaredirty.TheEWLCoptionreplacesthestandardmechanicalmake-upvalve,andincludesaslowclosing,solenoidactivatedvalveinthemake-upwaterlinetominimizewaterhammer.EWLCisrecommendedwhenmoreprecisewaterlevelcontrolisrequiredandinareasthatexperiencesub-freezingconditions.

` SIDE OUTLET DEPRESSED SUMP BOX (OPTION)

Asideoutletdepressedsumpboxisavailableforfieldinstallationbelowthebaseofthetower.Thisoptionfacilitateshorizontalpipingbelowthebasin,andisacompactalternativetousinganelbowinthepipingarrangement,savingonbothinstallationtimeandcost.TheoutletconnectionisdesignedtomatewithanASMEClass150flatfaceflange.Seethe“ConnectionGuide”onpage J176 formoreinformationonstandardandoptionalunitconnectiontypes.

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` BASIN HEATERS (OPTION)

Evaporativecoolingequipmentexposedtobelowfreezingambienttemperaturesrequireprotectiontopreventfreezingofthewaterinthecoldwaterbasinwhentheunitisidle.Factory-installedelectricimmersionheaters,whichmaintain40°F(4.4°C)watertemperature,areasimpleandinexpensivewayofprovidingsuchprotection.

` STEAM COIL AND STEAM INJECTOR BASIN FREEZE PROTECTION (OPTION)

Steamcoilsandsteaminjectorsareavailabletoprovidebasinfreezeprotection(notavailableonunitswithTriArmor®CorrosionProtectionSystemorEVERTOUGH™Construction).

` BASIN SWEEPER PIPING (OPTION)

Basinsweeperpipingisaneffectivemethodofreducingsedimentthatmaycollectinthecoldwaterbasinoftheunit.Acompletepipingsystem,includingnozzles,isprovidedinthecoldwaterbasintoconnecttosidestreamfiltrationequipment(providedbyothers).Formoreinformationonfiltrationsystems,consult“FiltrationGuide”foundonpage J233.

` LOW AND HIGH LEVEL ALARM FLOAT SWITCHES (OPTION)

Lowandhighlevelalarmfloatswitchesareavailabletoprovideaddedcontroltoyourequipmentoperation.Levelalarmscanalertoperatorstoanabnormaloperatingconditiontoensurethehighestsystemefficiencywithminimalwaterusage.

Basin Sweeper Piping

Model Number

0°F (-17.8°C) Ambient Heaters

-20°F (-28.9°C) Ambient Heaters

Number of Heaters

kW per Heater

Number of Heaters

kW per Heater

3240C to 3393C, 3430C 2 6 2 9

3412C, 3436C, 3455C, 3482C, 3527C 2 8 2 12

3473C, 3501C, 3552C, 3604C, 3648C, 3672C 2 10 2 14

3728C to 31056C, 31133C 2 12 2 15

3583C, 3618C, 3676C to 3725C 2 14 2 18

31132C, 31186C to 31301C 2 14 2 20

H E A T E R k W D A T A

NOTE: This table is based on 460V/3 phase/60 Hz power.

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› Multi-Cell Unit OptionsSpecial care must be taken for multi-cell installations to ensure balanced water levels in the cold water basins across cells. If measures are not put in place to ensure balanced basin water levels, a potential exists that one basin may overflow and dump water, while the water level in another tower goes low and requires make-up. This leads to unnecessary water waste. To prevent this from occurring, BAC provides two options for balancing water levels and recommends that the installation be designed to ensure balanced flows to and from each tower.

` FLUME BOX – STANDARD ON ALL MULTI-CELL UNITS

Aflumeboxisprovidedasstandardformulti-cellunitstobalancethewaterlevelinthecoldwaterbasins.Seethe“ConnectionGuide”onpage J176 formoreinformation.

` EQUALIZER (OPTION)

Equalizerconnectionsareavailableasanoptionformulti-cellcoolingtowersinlieuofaflumebox.Useofanequalizerallowsforeasyisolationofacellforwinteroperation,maintenance,orinspectionwhilecontinuingsystemoperation.See“CoolingTowersinParallel”onpage J167formoreinformation.

› Water Distribution SystemThe Series 3000 Cooling Tower utilizes a low pump head gravity distribution system with large orifice non-clogging nozzles that requires less pump energy than a pressurized distribution system.

` STANDARD TOP INLET CONNECTIONS

TheSeries3000comesstandardwithtopinletconnectionstoeachofthehotwaterbasins.Hotwaterbasincoversmatchingtheunitmaterialofconstructioncomeineasytohandlesectionsforeasyaccessandinspectionofthedistributionsystem.Theuseofgravitydistributionminimizespumpheadrequirementsandallowsformaintenanceduringunitoperation.BAC’spatentednon-clognozzlesensureevenflowoverthefillareaandaresimpletoremoveformaintenance.

Flume Box

FlumeBox

Top Inlet Connections



` EASY CONNECT® PIPING ARRANGEMENT (OPTION)

TheEASYCONNECT®PipingArrangementsimplifieswaterinletpipingontheSeries3000byautomaticallybalancingtheflowwithineachcell,eliminatingtheneedforflowbalancingvalves.Asinglewaterinletconnection,locatedonthesideorbottomofeachunit,eliminatestheneedforoverheadpipingandpipingsupports.Itreducesinstallationcostsandreducespotentialforerrorsduringfieldpipingfabrication.

` WEIR DAMS (OPTION)

Reducingwaterflowthroughaunitbelowtherecommendedlevelmaypotentiallycreateunevenwaterdistributionthroughtheheattransfersection,causingscalebuildup,splashout/drift,andicing.Tosuccessfullymodulatethewaterflowwhileavoidingpotentialcomplications,weirdamsmaybeinstalledinthehotwaterbasin.Withaweirdam,thehotwaterbasincanaccommodateaflowrangeof50%to100%ofthedesignflow.

› FillBACross® Fill, BAC’s patented crossflow hanging fill, was developed after years of extensive research. BACross® Fill is made of PVC and is optimized to provide the most efficient thermal capacity. PVC is virtually impervious to rot, decay, and biological attack. The fill is elevated above the cold water basin floor to facilitate cleaning and maintenance. The integral eliminators effectively strip entrained moisture from the leaving air stream with minimum pressure drop to prevent water loss with negligible impact on efficiency.

` STANDARD FILL

Standardfillcanbeusedinapplicationswithenteringwatertemperatureupto130°F(54.4°C).Thefillanddrifteliminatorsareformedfromself-extinguishingPVChavingaflamespreadratingof5perASTME84.

` HIGH TEMPERATURE FILL (OPTION)

Anoptionalhightemperaturefillmaterialisavailablewhichincreasesthemaximumallowableenteringwatertemperatureto140°F(60°C).

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› Capacity EnhancementThe need to enhance the capacity of a unit may be necessary when layout is restricted or if capacity requirements have increased and exceed an existing unit’s capabilities. By enhancing the capacity of a unit, it may be possible to use a smaller foot print while still meeting thermal requirements of the installation.

` VELOCITY RECOVERY (VR) STACKS (OPTION)

AVRstackisaconicalfancowlextensionthatreducesthedischargepressurethefanhastoworkagainst,allowingthefantomovemoreairforthesameenergyinput.Bymovingmoreairthroughthesameunit,thecoolingcapacityisincreasedwithoutincreasinghorsepowerorfootprint.Effectively,theamountofenergyrequiredforeachtonofcoolingcapacityisreduced.VRstacksarefactoryassembled,CTIcertified,andcanbeconfiguredduringinitialunitpurchasetoreduceenergyrequirementsorthroughtheaftermarkettoincreasecapacity.

› Shipping and RiggingBAC units are factory-assembled to ensure uniform quality with minimum field assembly. Each unit has been designed with rigging and assembly in mind and includes features to minimize the number of tools required and installation time.

` STANDARD RIGGING GUIDES

Riggingguidesallowfortheupperandlowersectionofunitswithatwopiecerigtoalignandengage.Theguidesensureproperplacementofthetopsectionformulti-cellinstallations,makingriggingmuchsimplerandreducingthetimerequired.Thisisespeciallycriticalduringmulti-cellinstallationswhenunitsareriggedside-by-side.

` KNOCKDOWN UNITS (OPTION)

Knockdownunitsareavailableforjobswhereaccesstothecoolingtowerlocationislimitedbyelevators,doorways,orsimilarobstacles,whereliftingmethodsimposeverystrictweightlimits,orwheretheshippingcostofafullyassembledtowerisexcessive.Allmaterialsofconstructionanddesignfeaturesarethesameasthoseofafactoryassembledunit.WeldedType304stainlesssteelcoldwaterbasinsandTriArmor®CorrosionProtectionSystemcoldwaterbasinsareexcludedduetotheneedforin-plantassembly.

Rigging Guides Ensure Alignment

Velocity Recovery (VR) Stacks

Knockdown Unit Installation



› Sound OptionsRecognition of the importance of sound reduction is growing and can be a very important design criterion for any project. BAC maintains the widest selection of sound mitigating options in the market place and can provide the most cost effective option to meet any requirement.

` STANDARD FAN

ThefanprovidedforallSeries3000CoolingTowersisselectedtooptimizelowsoundlevelsandmaximizethermalperformance.

` LOW SOUND FAN (OPTION)

TheLowSoundFanoptionreducessoundupto9dBA.Addingahighsolidityfandecreasesfanspeeds,whichproportionallydecreasessoundlevels.ThethermalperformancewiththeLowSoundFanhasbeencertifiedinaccordancewithCTIStandardSTD-201.

` WHISPER QUIET FAN (OPTION)

Forthemostextremesoundlimitations,BAC’sWhisperQuietFanreducessoundupto19dBA.Thefiberglassreinforcedpolyester(FRP)fanbladeshavebladeleadingedgeprotectionasstandard.Thesechemicalresistant,non-corrosivefansrequireminimalmaintenance,makingthemwellsuitedforuseincoolingtowerapplications.

` SOUND ATTENUATION (OPTION)

Factorydesigned,tested,andratedsoundattenuationoptionsareavailableforboththeairintakeanddischarge.ConsultyourlocalBACRepresentativeregardingavailableoptions.

› Air Intake OptionsIn a cooling tower, airborne debris can be entrained in the water through the unit’s air intake. The Series 3000 has several options for air intake accessories that prevent debris from entering the system and maintain even unobstructed flow through the unit. Reducing the amount of debris that enters the tower lowers maintenance requirements and helps to maintain thermal efficiency.

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` STANDARD LOUVERS

Airintakelouversmatchingthematerialofconstructionoftheunitcasingpanelsarestandard.Scaleformationandicingonthelouversandfillsheetscandamagethefillandreducethermalperformance.TheSeries3000louversarespeciallydesignedwithgreaterspacingbetweenlouvers(12”)andarecompletelyseparatefromthefillsection.Thisreducesscaleandiceaccumulationandallowsforunobstructedairflowthroughtheunit.

` COMBINED INLET SHIELDS (CIS) (OPTION)

TheCombinedInletShields’(CIS)bentflowpathblockssunlightfromthecoldwaterbasinandfillsectionandactsasascreentopreventdebrisfromenteringtheunit.Thesebenefitsresultinasignificantreductioninalgaegrowth,debrisaccumulation,andscalebuild-up.CISareconstructedfromcorrosionandUVresistantPVC,areCTIcertified,andareinstalledineasytohandlesectionsthatareseparatefromthefillsectiontofacilitateremoval,inspection,andreplacement.TheuseofCISresultsinlowermaintenancecostsandeaseofmaintenanceoverthelifeoftheunit.

` AIR INTAKE SCREENS (OPTION)

1”x1”wiremeshscreensareavailablefactory-installedovertheairintakelouverstopreventdebrisfromenteringthetowerandareCTIcertified.

› Access OptionsBAC provides a broad offering of access options. Our evaporative equipment is designed to be the most easily maintained for sustaining capacity over a longer life. All BAC platforms and ladders are OSHA compliant to ensure personnel safety and code compliance.

` MOTOR REMOVAL SYSTEM (OPTION)

Allmotorremovalsystemoptionsincludemodulardavitarm(s)tofacilitatemotorreplacement.TherearethreetypesofmotorremovalsystemsavailableontheSeries3000.

Combined Inlet Shields (CIS)

Motor Removal System with Davit Arm, Motor Access Platform, and Handrail Package

Cust

omer

Valu

ed


External Ladder, Safety Cage, and Handrail

Internal Ladder, Service Platform, and Walkway

` EXTERNAL PLATFORMS AND LADDER PACKAGES (OPTION)

Externalplatformsandladderpackages(nowfactoryassembledpriortoshipping)areavailabletoprovidesafeaccesstokeycomponentsoftheunitformaintenance.Multipleconfigurationsareavailable,includinglouverfaceplatformstogainaccesstothedistributionsystemandmotoraccessplatformsforexternallymountedgeardrivemotors.

ACCESS DOOR PLATFORM AND LADDER PACKAGES (OPTION)

Anaccessdoorplatformisavailabletoallowaccesstotheunitwheninstalledonelevatedsupports(thesearenowfactoryassembledpriortoshipping).Thisoptionallowsforsafeaccesstotheunit,aswellasaworkingplatformtostagetoolsformaintenance.

` HANDRAIL PACKAGES (OPTION)

Handrailpackagesareavailabletoprovidesafeaccesstothetopoftheunitformaintenancetothedistributionsystem.Fandeckextensionsareavailableforpassagearoundthefanonunitsdesignedwithmaximizedfandiameters,VelocityRecovery(VR)Stacks,ordischargesoundattenuation.Thespeciallydesignedhandrailpackagesaresecuredforcompactshippinginthecoldwaterbasintominimizeshippingcostsandarereadyforfieldassembly.

` INTERNAL WALKWAY (OPTION)

Aninternalwalkwayisavailable,allowingaccesstothespaciousplenumareaformaintenanceandinspectionofthecoldwaterbasin,make-up,fill,anddrivesystem.

` INTERNAL SERVICE PLATFORM AND LADDER PACKAGES (OPTION FOR TWO PIECE UNITS)

Foraccesstothemotoranddriveassemblies,aninternalladderandupperserviceplatformwithhandrailsisavailableonlargerunits.Safetygatesareavailableforallhandrailopenings,andallcomponentsaredesignedtomeetOSHArequirements.Aninternalwalkwayisrequiredwiththispackage.

NOTE: Platforms, ladders, handrails, safety gates, and safety cages can be added at

the time of order or as an aftermarket item.

External Ladder and Platform

Cust

omer

Valu

edCu

stom

er

Valu

edSeries 3000 Custom Features & Options


NOTE:

3728C thru 31056C and 31132C thru 31301C ship in two sections per cell. The top section is the heaviest and tallest.

Top section heights are:

• 3728C thru 3970C: 10’-3”

• 3985C thru 31056C: 11’-7”

• 31132C: 10’-5”

• 31213C: 11’-9”

• 31301C: 12’-7”

Series 3000 Engineering Data

NOTE: Do not use for construction. Refer to factory certified dimensions. This catalog includes data current at

the time of publication, which should be reconfirmed at the time of purchase. Up-to-date engineering data, free

product selection software, and more can be found at www.BaltimoreAircoil.com.

L3”

L E EE

AH

Access Door Both Ends

W

Side Elevation: Double Cell UnitSide Elevation: Single Cell Unit

End Elevation

L3”

L E EE

AH

Access Door Both Ends

W

http://www.baltimoreaircoil.com/english/product-selection-software


Model Number

Nominal Tonnage[2]

MotorHP

Fan(CFM)

Weights (lbs) Dimensions[4]

Operating[3] ShippingHeaviest Section L W H[5] A

3240C 240 10 62,790 15,200 7,610 7,610

8’-6” 18’-1” 9’-4” 8’-8”3272C 272 15 71,340 15,320 7,730 7,730

3299C 299 20 78,110 15,380 7,790 7,790

3333C 325 20 85,720 16,190 8,060 8,060

8’-6” 18’-1” 10’-8” 10’-0”3358C 349 25 91,960 16,220 8,090 8,090

3379C 369 30 97,400 16,270 8,140 8,140

3371C 371 25 97,890 17,120 8,450 8,450

8'-6" 18'-1" 12'-0" 11'-4"3393C 393 30 103,700 17,170 8,500 8,500

3430C 430 40 113,460 17,330 8,660 8,660

3412C 399 25 103,700 19,000 9,390 9,3909’-10” 20’-1” 10’-10” 10’-0”

3436C 422 30 109,830 19,050 9,440 9,440

3455C 434 25 112,250 19,770 9,710 9,710

9’-10” 20’-1” 12’-2” 11’-4”3482C 459 30 118,880 19,820 9,760 9,760

3527C 502 40 130,160 19,980 9,920 9,920

3473C 458 25 118,870 22,730 10,900 10,90011’-10” 21’-7” 10’-11” 10’-0”

3501C 485 30 125,900 22,780 10,950 10,950

3552C 527 30 136,170 25,150 11,510 11,510

11’-10” 21’-7”12’-3”

11’-4”3604C 577 40 149,090 25,310 11,670 11,670

3648C 619 50 159,950 25,320 11,680 11,680

3672C 642 60 166,020 26,080 12,440 12,440 12’-9”

3728C 728 40 178,860 30,700 14,460 8,430

11’-10” 21’-7” 16’-5” 15’-6”3781C 781 50 191,890 30,860 14,620 8,590

3828C 828 60 203,230 30,870 14,630 8,600

3871C 871 75 213,780 31,830 15,590 9,560

3872C 846 50 206,630 33,700 15,380 8,600

11’-10” 21’-7” 19’-1” 18’-2”3923C 896 60 218,840 33,910 15,590 8,810

3970C 941 75 230,080 34,870 16,550 9,770

3918C 918 60 222,820 35,380 16,020 8,81011'-10" 21'-7" 20'-5" 19'-6"

3984C 985 75 239,080 35,470 16,100 8,890

3985C 985 60 229,950 36,500 16,360 9,210

11’-10” 21’-7” 21’-9” 20’-10”31056C 1,056 75 246,700 36,590 16,440 9,290

31133C [1] 1,133 100 264,690 38,510 18,360 10,380

3583C 557 25 143,950 32,890 15,650 15,650

14’-0” 24’-1” 12’-3” 11’-4”

3618C 591 30 152,460 32,940 15,700 15,700

3676C 646 40 166,920 33,100 15,860 15,860

3725C 693 50 179,080 33,110 15,870 15,870

3719C 719 60 185,800 33,120 15,880 15,880

31132C 1,105 75 267,880 43,080 20,830 11,43014’-0” 24’-1”

19’-9”18’-2”

31186C [1] 1,186 100 287,520 45,000 22,750 12,520 20’-1”

31130C 1,130 75 278,730 44,420 21,180 11,43014'-0" 24'-1"

21'-1"19'-6"

31212C [1] 1,212 100 298,960 46,340 23,100 12,520 21'-5"

31213C 1,213 75 282,010 45,760 21,530 12,14014’-0” 24’-1”

22’-5”20’-10”

31301C [1] 1,301 100 302,580 47,680 23,450 13,230 22’-9”

S I N G L E C E L L U N I T



Model Number

Nominal Tonnage[2]

MotorHP

Fan(CFM)

Weights (lbs) Dimensions[4]

Operating[3] ShippingHeaviest Section L W H[5] A

3240C-2 480 (2) 10 125,580 30,400 15,220 7,610

17’-2” 18’-1” 9’-4” 8’-8”3272C-2 544 (2) 15 142,680 30,640 15,460 7,730

3299C-2 598 (2) 20 156,220 30,760 15,580 7,790

3333C-2 650 (2) 20 171,440 32,380 16,120 8,060

17’-2” 18’-1” 10’-8” 10’-0”3358C-2 698 (2) 25 183,920 32,440 16,180 8,090

3379C-2 738 (2) 30 194,800 32,540 16,280 8,140

3371C-2 742 (2) 25 195,780 34,240 16,900 8,450

17'-2" 18'-1" 12'-0" 11'-4"3393C-2 786 (2) 30 207,400 34,340 17,000 8,500

3430C-2 860 (2) 40 226,920 34,660 17,320 8,660

3412C-2 798 (2) 25 207,400 38,000 18,780 9,39019’-9” 20’-1” 10’-10” 10’-0”

3436C-2 844 (2) 30 219,660 38,100 18,880 9,440

3455C-2 868 (2) 25 224,500 39,540 19,420 9,710

19’-9” 20’-1” 12’-1” 11’-4”3482C-2 918 (2) 30 237,760 39,640 19,520 9,760

3527C-2 1,004 (2) 40 260,320 39,960 19,840 9,920

3473C-2 916 (2) 25 237,740 45,460 21,800 10,90023’-10” 21’-7” 10’-11” 10’-0”

3501C-2 970 (2) 30 251,800 45,560 21,900 10,950

3552C-2 1,054 (2) 30 272,340 50,300 23,020 11,510

23’-10” 21’-7”12’-2”

11’-4”3604C-2 1,154 (2) 40 298,180 50,620 23,340 11,670

3648C-2 1,238 (2) 50 319,900 50,640 23,360 11,680

3672C-2 1,284 (2) 60 332,040 52,160 24,880 12,440 12’-9”

3728C-2 1,456 (2) 40 357,720 61,400 28,920 8,430

23’-10” 21’-7” 16’-5” 15’-6”3781C-2 1,562 (2) 50 383,780 61,720 29,240 8,590

3828C-2 1,656 (2) 60 406,460 61,740 29,260 8,600

3871C-2 1,742 (2) 75 427,560 63,660 31,180 9,560

3872C-2 1,692 (2) 50 413,260 67,400 30,760 8,600

23’-10” 21’-7” 19’-1” 18’-2”3923C-2 1,792 (2) 60 437,680 67,820 31,180 8,810

3970C-2 1,882 (2) 75 460,160 69,740 33,100 9,770

3918C-2 1,836 (2) 60 445,640 70,760 32,040 8,81023'-10" 21'-7" 20'-5" 19'-6"

3984C-2 1,970 (2) 75 478,160 70,940 32,200 8,890

3985C-2 1,970 (2) 60 459,900 73,000 32,720 9,210

23’-10” 21’-7” 21’-9” 20’-10”31056C-2 2,112 (2) 75 493,400 73,180 32,880 9,290

31133C-2 [1] 2,266 (2) 100 529,380 77,020 36,720 10,380

3583C-2 1,144 (2) 25 287,900 65,780 31,300 15,650

28’-1” 24’-1” 12’-3” 11’-4”

3618C-2 1,182 (2) 30 304,920 65,880 31,400 15,700

3676C-2 1,292 (2) 40 333,840 66,200 31,720 15,860

3725C-2 1,386 (2) 50 358,160 66,220 31,740 15,870

3719C-2 1,438 (2) 60 371,600 66,240 31,760 15,880

31132C-2 2,210 (2) 75 535,760 86,160 41,660 11,43028’-1” 24’-1”

19’-9”18’-2”

31186C-2 [1] 2,372 (2) 100 575,040 90,000 45,500 12,520 "20'-1""

31130C-2 2,260 (2) 75 557,460 88,840 42,360 11,43028'-1" 24'-1"

21'-1"19'-6"

31212C-2 [1] 2,424 (2) 100 597,920 92,680 46,200 12,520 21’-5”

31213C-2 2,426 (2) 75 564,020 91,520 43,060 12,14028’-1” 24’-1”

22’-5”20’-10”

31301C-2 [1] 2,602 (2) 100 605,160 95,360 46,900 13,230 22’-9”

D O U B L E C E L L U N I T




NOTE: Refer to page B37 for data table reference notes.




Model Number

Dimensions[1] Inlet Connection Sizes[2,4] Outlet Connection Sizes[3,4]

B C D FEasy

Connect Top Inlet OutletRemote Sump

3240C

5’-9” 3’-9” 9” 6’-6” 8” (2) 6” 8” 10”3272C

3299C

3333C

6’-7” 3’-9” 9” 6’-6” 8” (2) 6” 8” 10”3358C

3379C

3371C

6'-7" 3'-9" 9" 6'-6" 8" (2) 6" 8” 12"3393C

3430C

3412C6’-7” 3’-9” 9” 6’-9” 8” (2) 6” 8” 12”

3436C

3455C

6’-7” 3’-9” 10” 6’-9” 10” (2) 8” 10” 12”3482C

3527C

3473C6’-7” 4’-0” 10” 8’-8” 10” (2) 8” 10” 12”

3501C

3552C

6’-7” 4’-0” 10” 8’-8” 10” (2) 8” 10” 14”3604C

3648C

3672C

3728C

10’-5” 4’-0” 10” 8’-8” 12” (2) 8” 12" 16"3781C

3828C

3871C

3872C

13’-1” 4’-0” 10” 8’-8” 12” (2) 8” 12” 16”3923C

3970C

3918C14'-5" 4'-0" 10" 8'-8" 12" (2) 8" 12" 16"

3984C

3985C

15’-9” 4’-0” 10” 8’-8” 14" (2) 10" 14" 20"31056C

31133C

3583C

6’-7” 4’-1” 10” 8’-10” 10” (2) 8” 10” 14"

3618C

3676C

3725C

3719C

31132C13’-1” 4’-1” 10” 8’-10” 14” (2) 10” 14” 20”

31186C

31130C14'-5" 4'-1" 10" 8'-10" 14" (2) 10" 14" 20"

31212C

31213C15’-9” 4’-1” 10” 8’-10” 14” (2) 10” 14” 20”

31301C

C O N N E C T I O N D I M E N S I O N S



AH

Access DoorBoth Ends

Standard Side Outlet

W

1/2 W

B

D

Optional End InletEASY CONNECT®

1/2 L

3’-9”

Face A

Face B

Standard Top Inlet

C UNITL C UNITL

Face A Face B

C

OptionalBottomInlet EASY

CONNECT®

F

OptionalBottomOutlet/

Remote Sump

1/2 W

End Elevation: Face A

Plan View: Top

Plan View: Basin






ModelNumber

Operating LoadVertical (lbs)

Maximum OperatingWeight (lbs) A B C D

3240C 2,420 10,120

9’-1 3/4” 18’-4 1/2” 9’-2 1/4” —3272C 2,460 10,240

3299C 2,470 10,300

3333C 2,670 11,110

9’-1 3/4” 18’-4 1/2” 9’-2 1/4” —3358C 2,680 11,140

3379C 2,690 11,190

3371C 2,830 12,040

9’-1 3/4” 18’-4 1/2” 9’-2 1/4” —3393C 2,840 12,090

3430C 2,900 12,250

3412C 3,130 12,93010’-5 1/4” 20’-4 1/2” 10’-2 1/4” —

3436C 3,140 12,980

3455C 3,350 13,700

10’-5 1/4” 20’-4 1/2” 10’-2 1/4” —3482C 3,370 13,750

3527C 3,410 13,910

3473C 3,770 14,71012’-5 3/4” 21’-10 1/2” 10’-11 1/4” —

3501C 3,780 14,760

3552C 4,100 15,870

12’-5 3/4” 21’-10 1/2” 10’-11 1/4” —3604C 4,140 16,030

3648C 4,150 16,040

3672C 4,450 16,800

3728C 5,640 21,210

12’-5 3/4” 21’-10 1/2” 10’-11 1/4” —3781C 5,650 21,370

3828C 5,700 21,380

3871C 6,020 22,340

3872C 6,390 24,210

12’-5 3/4” 21’-10 1/2” 10’-11 1/4” —3923C 6,440 24,420

3970C 6,760 25,380

3918C 6,680 25,89012’-5 3/4” 21’-10 1/2” 10’-11 1/4” —

3984C 6,700 25,980

3985C 7,690 27,010

12’-5 3/4” 21’-10 1/2” 10’-11 1/4” —31056C 7,710 27,100

31133C 8,090 29,020

3583C 3,100 21,220

14’-7 1/8” 24’-4 1/2” 7’-8 1/4” 9’-0”

3618C 3,110 21,270

3676C 3,140 21,430

3725C 3,140 21,440

3719C 3,190 21,450

31132C 4,940 31,41014’-7 1/8” 24’-4 1/2” 7’-8 1/4” 9’-0”

31186C 5,320 33,330

31130C 5,280 32,75014’-7 1/8” 24’-4 1/2” 7’-8 1/4” 9’-0”

31212C 5,660 34,670

31213C 5,440 34,09014’-7 1/8” 24’-4 1/2” 7’-8 1/4” 9’-0”

31301C 5,820 36,010

C O N C R E T E B A S I N E N G I N E E R I N G D A T A F O R O P T I O N A L B A S I N L E S S U N I T S




1’-2 7/8”1’-5 7/8” Min.

C

6” Min.

Air In

3” Min.(Typ)

1’-5 7/8” Min.

1’-2 7/8”

Air In A

B

10

5/8

” M

in.

7 5

/8”

3”

Min

. (T

yp)

10

5/8

” M

in.

7 5

/8”

(6) 3/4” Dia. Anchor Bolts

C D

B

C

6” Min. 6” Min.

Air In Air In

(8) 3/4” Dia. Anchor Bolts

1’-2 7/8”1’-5 7/8” Min.

3” Min.(Typ)

3”

Min

. (T

yp)

11

1/4

” M

in.

8 1

/4”

11

1/4

” M

in.

8 1

/4”

1’-5 7/8” Min.

1’-2 7/8”

Basin Depth Top of Piers And Base of Cooling Tower

Operating Water Level

See Detail A

1’-

3”

1’-

6”

Concrete Basin Wall SlopeDetail A

1”

Plan View of Concrete Basin: Models 3240C thru Models 31133C

Plan View of Concrete Basin: Models 3583C thru Models 31301C

Side View of Concrete Basin: All Models






ModelNumber

Weights (lbs) Dimensions

Operating[1] Shipping[1,2]

WT. at BoltHole

Locations L1 L2 W A B C D

3240C 15,200 7,610 3,800

8’-5 3/4” 17’-2” 18’-0 1/2” 9’-4” 1 1/8” 8’-3 1/2” 4 3/4”3272C 15,320 7,730 3,830

3299C 15,380 7,790 3,845

3333C 16,190 8,060 4,048

8’-5 3/4” 17’-2” 18’-0 1/2 9’-4” 1 1/8” 8’-3 1/2” 4 3/4”3358C 16,220 8,090 4,055

3379C 16,270 8,140 4,068

3371C 17,120 8,450 4,280

8’-5 3/4” 17’-2” 18’-0 1/2” 9’-4” 1 1/8” 8’-3 1/2” 4 3/4”3393C 17,170 8,500 4,293

3430C 17,330 8,660 4,333

3412C 19,000 9,390 4,7509’-9 1/4” 19’-9” 20’-0 1/2” 11’-4” 1 1/8” 9’-7” 4 3/4”

3436C 19,050 9,440 4,763

3455C 19,770 9,710 4,943

9’-9 1/4” 19’-9” 20’-0 1/2” 11’-4” 1 1/8” 9’-7” 4 3/4”3482C 19,820 9,760 4,955

3527C 19,980 9,920 4,995

3473C 22,730 10,900 5,68311’-9 3/4” 23’-10” 21’-6 1/2” 12’-10” 1 1/8” 11’-7 1/2” 4 3/4”

3501C 22,780 10,950 5,695

3552C 25,150 11,510 6,288

11’-9 3/4” 23’-10” 21’-6 1/2” 12’-10” 1 1/8” 11’-7 1/2” 4 3/4”3604C 25,310 11,670 6,328

3648C 25,320 11,680 6,330

3672C 26,080 12,440 6,520

3728C 30,700 14,460 7,675

11’-9 3/4” 23’-10” 21’-6 1/2” 12’-10” 1 1/8” 11’-7 1/2” 4 3/4”3781C 30,860 14,620 7,715

3828C 30,870 14,630 7,718

3871C 31,830 15,590 7,958

3872C 33,700 15,380 8,425

11’-9 3/4” 23’-10” 21’-6 1/2” 12’-10” 1 1/8” 11’-7 1/2” 4 3/4”3923C 33,910 15,590 8,478

3970C 34,870 16,550 8,718

3918C 35,380 16,020 8,84511’-9 3/4” 23’-10” 21’-6 1/2” 12’-10” 1 1/8” 11’-7 1/2” 4 3/4”

3984C 35,470 16,100 8,868

3985C 36,500 16,360 9,125

11’-9 3/4” 23’-10” 21’-6 1/2” 12’-10” 1 1/8” 11’-7 1/2” 4 3/4”31056C 36,590 16,440 9,148

31133C 38,510 18,360 9,628

3583C 32,890 15,650 8,223

13’-11 1/8” 28’-0 3/4” 24’-0 1/2” 15’-4” 1 11/16” 13’-7 3/4” 5 7/8”

3618C 32,940 15,700 8,235

3676C 33,100 15,860 8,275

3725C 33,110 15,870 8,278

3719C 33,120 15,880 8,280

31132C 43,080 20,830 10,77013’-11 1/8” 28’-0 3/4” 24’-0 1/2” 15’-4” 1 11/16” 13’-7 3/4” 5 7/8”

31186C 45,000 22,750 11,250

31130C 44,420 21,180 11,10513’-11 1/8” 28’-0 3/4” 24’-0 1/2” 15’-4” 1 11/16” 13’-7 3/4” 5 7/8”

31212C 46,340 23,100 11,585

31213C 45,760 21,530 11,44013’-11 1/8” 28’-0 3/4” 24’-0 1/2” 15’-4” 1 11/16” 13’-7 3/4” 5 7/8”

31301C 47,680 23,450 11,920

Series 3000 Structural Support

S T R U C T U R A L S U P P O R T


TherecommendedsupportarrangementfortheSeries3000CoolingTowerconsistsofparallelI-beamspositionedasshowninthedrawingsonpage B36.Besidesprovidingadequatesupport,thesteelalsoservestoraisetheunitaboveanysolidfoundationtoassureaccesstothebottomofthetower.TheSeries3000CoolingTowermayalsobesupportedoncolumnsattheanchorboltlocationsshowninPlanA(singlecell)orPlanC(doublecell).Aminimumbearingsurfaceof12”x12”mustbeprovidedundereachoftheconcentratedloadpoints.Alternatesteelsupportarrangementscanbefoundonpage B37.TosupportaSeries3000CoolingToweroncolumnswithanalternatesteelsupportarrangementortheoptionalupgradedseismicandwindratedunit,consultyourlocalBACRepresentative.

4 1/2”

Air Intake Air IntakeC

Bolts

B

B

L1

Bolts

A

W

3/4” Dia. Mounting Holes(4 Required Models 3240C Thru 3719C)(8 Required Models 3728C Thru 31301C)

Unit Outline

CL

Additional Anchor Bolts Models 3728C Thru 31301C

Unit Overall

CL

Plan A: Single Cell Unit

Plan C: Double Cell Unit


Air Intake

L2

CBoltsCL

CBoltsCL

B

B

D

WUnit Overall

ABoltsCL

Unit Outline


4 1/2”

Air Intake Air Intake

Air Intake

Plan B: Single Cell Unit

Unit OutlineAir Intake Air Intake


B

B

CBoltsCL

A

WUnit Overall

BoltsCL

L1

4 1/2”


NOTES:

1. Operating weight is based on the water level

in cold water basin at overflow height.

2. Unit support beams and anchor bolts to be

designed and furnished by others.

3. Support beams must be flush and level at top.

4. Steel frame members perpendicular to the

support beams and under the air intake

edges of unit must be at least 2” below the

top of the support beams.

5. For support beam spacing other than shown,

mounting holes in the unit are to be drilled

by others.


Series 3000 Alternative Structural Support

TheSeries3000CoolingTowers(excludingbasinlessoption)canaccommodatePlanA(singlecell)andPlanC(doublecell)supportwithalternativespacingofanchorboltholecenterlinesaslistedinthetablebelow.BACprovidesspecificanchoragedrawingsinthejobfilethatreflecttherevisedanchorboltholecenterlinedimensiononly.IBCwindandseismicloadratingsarenotavailableonalternatesteelsupportarrrangements.Theunitwillhavepre-punchedanchorboltholesinthestandardandminimumholespacinglocationsonly.Allotheralternativeanchorboltholesarelocatedanddrilledbyothers.

Model Number

Maximum Spacing

“A” Dimension

Standard Spacing

“A” Dimension

Spacing Range to Avoid due to Cold Water Basins Seams Interfere With

Bolt Hole Locations

Minimum Spacing

“A” Dimension

3240C to 3430C 16’-0” 9’-4” 8’-5 1/2” thru 7’-9 3/8” 7’-5”

3412C to 3527C 16’-0” 11’-4” 10’-1 3/4” thru 9’-5 5/8” 8’-0”

3473C to 31133C 16’-0” 12’-10” 11’-2 3/4” thru 11’-10 7/8” 9’-6”

3583C to 31301C 16’-0” 15’-4” — 12’-0”

NOTE: The standard

structural support figures

on page B36 apply to

alternative structural

support as well.

A LT E R N A T I V E S T R U C T U R A L S U P P O R T

1.

NOTES FOR SINGLE CELL AND DOUBLE CELL UNITS:

(PAGES B29 AND B30):

1. 31133C, 31186C, 31212C, and 31301C are supplied with a gear drive

system as standard.

2. Nominal tons of cooling represents the capability to cool 3 USGPM of water from a 95°F entering water temperature to an 85°F leaving water temperature at a 78°F entering wet-bulb temperature.

3. Operating weight is based on the water level in the cold water basin

at overflow height. If a lower operating weight is needed to meet

design requirements, your local BAC Representative can provide

additional assistance.

4. Refer to page B28 for dimensional reference drawings.

5. Models shipped with an optional gear drive or Low Sound Fan may

have heights up to 10.5” greater than shown. For units with Whisper

Quiet Fans please contact your local BAC Representative for accurate

height dimensions.

NOTES FOR CONNECTION DIMENSIONS (PAGE B31):

1. For dimension locations, see page B32.

2. The specific size of the inlet and outlet connection may vary

with the design cooling water flow rate.

3. Unless otherwise indicated, all connections 3” and smaller are male

pipe thread, and connections 4” and larger are beveled for welding

and grooved to suit a mechanical coupling.

4. On double cell units, connections are the same size but are located on

both ends of the unit. Refer to page B28 for side elevation view.

NOTES FOR BASINLESS UNIT DATA (PAGE B33):

1. Purchaser to design, construct, and furnish basin (including anchor

bolts) in accordance with requirements given. Purchaser must also

supply sump, overflow, drain, cleanout, and water make-up to suit

requirements.

2. All anchor bolts shall be 3/4” diameter, 1 1/2” projection (±1/4”),

fully threaded. Bolt to have one nut and washer. Anchor bolt and

column bearing point locations and elevations must be maintained

±1/8”.

3. Pier dimensions shown are minimum bearing surfaces required for the tower structure and do not include corner chamfers on the concrete piers.

4. Fill to be located below the operating water level (see Side View of Concrete Basin for All Models on page B34).

5. Maximum operating weight does not include concrete basin or water retained in the basin.

series 3000 structural support

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