MODEL BWX

Semi-Instantaneous Indirect Fired Water HeaterUse Boiler Water Or HTHW To Heat Domestic Water

Model BWX Semi-Instantaneous Type

The Model BW is equipped with all operating controls and ready for immediate installation

ASME

UA Heavy Duty Indirect Fired Water HeaterTheModelBWXisafullypackagedindirectfiredwaterheaterwhichutilizesboilerwaterorhightemperaturehotwater(HTHW)astheenergysourceforheatingpotablewater.Theentirepackageisdesignedtobeareliableandlonglastingsourceforhotwater.Eachcomponentiscarefullyselectedtoensurehighperformanceineventhemostdemandingapplication.

Whetheryouareheatingpotablewaterinacommercialbuildingorprocesswaterinanindustrialapplication,youcanselectaHubbellBWXmodeltodothejob.WhenyouspecifyandinstallaHubbellwaterheater,youwillbeprovidedwithaqualityproductthatisalonglastingandtroublefreesourceforhotwater.

Features■ Reliable

� Onlyhighgradematerialsusedinconstructiontoensurelongoperatinglife

� Hydrastonecementliningprovidessuperiorprotectionandtanklongevity

� Heavydutyconstructionwithstandsdemandingcommercial/industrialuse

■ Packaged System� Factoryselectedandsizedboilerwater

controlvalvesimplifiesinstallationandensuresreliableoperation

■ Versatile� Fullrangeofstyles,sizes,andoptional

featurestomeetyourexactheatingneeds

� Compactdesignrequiresminimalfloorspace

Applications■ Schools■ OfficeBuildings■ SportsVenues■ Hotels

■ IndustrialFacilities■ NursingHomes■ Hospitals

A Packaged Water Heater Ready For Installation

2

Model BWX Semi Instantaneous Standard Equipment

Optional Equipment

Heating Coil4. Doublewalltubingwithaleakdetectionport

5. Alternatetubingmaterialpleasespecify:(StainlessSteel,90/10Copper-Nickel,Admiralty)

6. Fabricatedheadconstructedfrom:(StainlessSteel,CopperAlloy)

Vessel Construction1. Designed andbuiltinstrictaccordancewith

theASME CodeSectionVIIIandstamped,certified,and registeredwiththeNationalBoardofBoiler andPressureVesselInspectors

2. Designedfor150psiworkingpressureandhydrostaticallytested

Heating Coil1. Factorysizedandinstalledcopperheatingcoil

withagenerouslysizedheatingsurfacedesignedtoensurereliableoperation

2. U-Tubeheatingcoilconstructedfromsinglewallcoppertubingdesignedforamaximumworkingpressureof150psi

3. HeavydutyfabricatedsteelheadwiththreadedNPTinletandoutletconnections

4. Allwettedpartsarenon-ferrousformaximumlongevity

5. Non-Ferroustubesheet

Boiler Water Operating Controls1. Operatingcontrolsarefactoryselected,sized,

piped,andtestedtoensurereliableoperation

2. Allcomponentsarefactorypipedandreadyforboilerwaterinandoutconnections

3. Modulatingcontrolvalve(2-way,3-way)toregulatetheflowofheatingwaterthroughthecoil.Modulatingcontrolvalvetobe(electric,pneumatic)powered

4. Allbronzeintegralcirculatingpump

5. Directmountedboilerwateranddomesticwatertemperatureandpressuregauges

6. HighlimitSinglesolenoidsafetysystemclosestheboilerwatersupplytotheheatingcoilshouldthewatertemperatureinthetankreachthehi-limitsetpoint.Requires120volt5ampelectricalservice

General1. Heavydutyfiberglassinsulationformaximum

operatingefficiencyandminimalstand-byheatloss

2. Heavygaugepaintedgalvanizedsteelprotectiveouterjacket

3. Heavydutyintegrallyweldedsteelsupportsforfloormounting

4. Fullfive(5)yearNonPro-Ratedtankwarrantyandaone(1)yearcomponentwarranty

5. ASMEratedcombinationT&Preliefvalvesetatthetankworkingpressureand210oF

Vessel1. Alternatevesselconstruction:

StainlessSteelType304or316L,galvanizedsteel or 90/10 Copper-Nickel

2. Alternateworkingpressure:Pleasespecify

3. HorizontalConstruction

Operating Controls8. Boilerwatercontrolvalvecanbefactory

selectedandsized,butshippedlooseforinthefieldinstallationbyothers

9. Adoublesolenoidsafetysystemdumpsoverheatedwaterinthepressurevesseltodraininadditiontoclosingtheboilerwatersupplytotheheatingcoil.Requires120volt5ampelectricalservice.

NOTE:Otheroptionalfeaturesareavailable,pleaseconsultfactoryifrequired.

General7. Type304stainlesssteelprotectiveouter

jacket,pleasespecifyifpainted.

Heating Chamber:

3

Vertical Dimensions (inches)Model No. Based on 100˚FΔT Recovery Rate (40-140˚F)

Note:Alldimensionsareapproximateandsubjecttochange.Pleasereferencethesubmittaldrawingforactualdimensions.Pleaseconsultfactoryforrecoveryratingsforboilerwatertemperaturesnotshown.

Liters x 0.2641 = Gallons

Gallons x 3.79 = Liters

Gallons x 0.003785 = m3

m3 x 264.2 = GallonsOC∆T = 1.8OF∆T1

OF = (OC x 1.8) + 32OC = (OF - 32) x 0.556

psi x 0.06896 = Bar

Bar x 14.5 = psi

psi x 6.86 = kPa

kPa x 0.1456 = psi

Lbs x 0.4536 = Kg

Kg x 2.2 = Lbs

ft2 x 0.0929 = m2

m2 x 10.765 = ft2

Metric Conversion

Base ModelRecovery

Rating (GPH) 40-140°F

BTU/HrBoiler Water

Entering & Exiting Temperatures (°F)

Vertical Model BWX Overall Dimensions (inches)Weight (Lbs)

Single Wall Double Wall

A B C D E A B C D E

BWX-600 600 500,000180-160°F 88 41 28 15 21 101 47 34 17 23 810

200-180°F 88 40 29 13 19 100 47 34 15 21 655

BWX-900 900 750,000180-160°F 100 47 34 15 21 90 42 27 19 25 850

200-180°F 76 35 22 15 21 89 41 28 17 23 770

BWX-1200 1200 1,000,000180-160°F 100 47 34 15 21 102 48 33 19 25 850

200-180°F 88 41 28 15 21 89 41 28 17 23 810

BWX-1500 1500 1,250,000180-160°F 89 41 28 17 23 102 48 33 19 25 1035

200-180°F 88 41 28 15 21 101 47 34 17 23 810

BWX-1800 1800 1,500,000180-160°F 89 41 28 17 23 108 49 39 20 27 1035

200-180°F 77 35 22 17 23 101 47 34 17 23 985

BWX-2400 2400 2,000,000180-160°F 101 47 34 17 23 108 49 39 20 27 1090

200-180°F 77 35 22 17 23 90 42 27 19 25 985

BWX-3000 3000 2,500,000180-160°F 90 42 27 19 25 111 30 39 22 31 1195

200-180°F 78 36 21 19 25 102 48 33 19 25 1130

BWX-3600 3600 3,000,000180-160°F 90 42 27 19 25 111 50 39 22 31 1195

200-180°F 78 36 21 19 25 96 43 33 20 27 1130

BWX-4200 4200 3,500,000180-160°F 90 42 27 19 25

200-180°F 78 36 21 19 25 108 49 39 20 27 1130

BWX-4800 4800 4,000,000180-160°F 96 43 33 20 27

200-180°F 84 37 27 20 27 99 44 33 22 31 1480

BWX-6000 6000 5,000,000180-160°F 99 44 33 22 31

200-180°F 99 44 33 22 31

4

Outline Dimensions - Model BWXH (Horizontal)

Indirect-Fired Semi-Instantaneous

Outline Dimensions - Model BWX (Vertical)

Indirect-Fired Semi-Instantaneous

Hot Water Outlet

Protective JacketT&P Relief Valve

Thermometer

Hi-Limit ThermostatPump Switch

Pressure Gauge

Cold Water Inlet

Recirculation Pump

Temperature Controller

Hi-Limit Solenoid Valve

Control Valve

Drain

D

E

A

B

C

Insulation

Hot WaterOutlet

TOP VIEW

ProtectiveJacket

Thermometer

Pump Switch

Cold WaterInlet

Recirculation Pump

TemperatureController

Drain

Insulation

Withdrawal�Space

Hi-Limit Thermostate

END VIEW

T&P Relief Valve

Pressure Gauge

Control Valve

Hi-LimitSolenoid Valve

5

Boiler Wat

e

e

t

r

u

S

rn

upply

Boiler Water R

Bypass Line if 3-Way Valve

To Drain

Boiler Water R

eturn

Boiler Water S

upply

Hot Water O

ut

Recirculation

Cold Water In

Drain

Piping Layouts

SINGLEUNIT

DUALUNIT

Hot Water Out

RecirculationCold Water In

To Drain

To Drain

Drain

Drain

6

Boiler Water R

eturn

Boiler Water Supply

Hot Water Supply

Recirculation

Hot Water Out

Drain

Cold Water InSt T

oar na kg

e

Hot Water Return

To Drain

To Drain

SINGLEUNITWITHSTORAGETANK

Strainer

Stop Valve

Check Valve

Control Valve

Relief Valve

Thermal Element

Pressure Gauge

Temperature Gauge

Circulator

Expansion Tank

LEGEND

Piping Layouts

Access Panel Side View

−

7

Formulas

Note: A minimum 10 oF differential (∆T)between the exiting boiler water temperature and the exiting domestic hot water temperature is requiredto maintain efficient heat transfer rates. For detailed information regarding the heating coil, please reference the Hubbell brochure titled “Hubbell Heating Coils”.

DomesticWaterGPHHeated

DomesticWateroF∆T

x 0.01666 x= GPMBoilerWaterRequired

BoilerWaterDropoF∆T

ToDetermineTheBoilerWaterFlowRateRequired

ToDetermineMaximumDomesticWaterRecoveryRate

BoilerWaterGPM

BoilerWaterDropoF∆T

x 60 x= GPHDomesticWaterHeated

DomesticWaterRiseoF∆T

Ihave30GPMof200oFboilerwaterthatIcantakedownto160oF.HowmanyGPHofdomesticwatercanIheatfrom40-140oF?

Iwanttoheat950GPHfrom40-140oFwith180oFboilerwaterthatIcantakedownto160oF.HowmuchboilerwatermustIhaveavailable?

1582.7950 x .01666 x (140-40)180-160 20

Examples

A. B.

79GPMofBoilerWater

7200030 x 60 x (200-160)

140-40 100

= = =

Option NoteAny and all optional equipment for a water heater must be called out in the written specifications. A model number in and of itself does not reflect any optional equipment selected.

Example:BWXCN-3600S A vertically installed semi-instantaneous indirect fired water heaterwith a 90/10 Copper-Nickel pressure vessel and single wall heating coil rated to heat 3600 GPH at a 100oF temperature rise.

■ Step 2 Vessel Type:CN =90/10 Copper-NickelSS =Stainless Steel (Specify Type)M =Galvanized Steel

■ Step 1 Model:BWX = Vertical BWXH = Horizontal

■ Step 3 Recovery Rating:In GPH at 100oF ∆T

BWX Model Number Designation

—

■ Step 4 Coil Type:S = Single Wall D = Double Wall

Model Number Designation

720GPHDomestic Water

=

GENERALProvideaquantityof_________semiinstantaneousindirectfiredwaterheater(s),ModelNo.___________________________asmanufacturedbyHUBBELLElectricHeaterCo.,Stratford,CT.Thepressurevesselshallbemountedonstructuralsupportsandbesuitablyinsulated,jacketedandpainted.Theentireunitistobepackagedreadyforserviceconnections.

PRESSURE VESSELThepressurevesselsectionshallbeconstructedfrom304 Stainless Steel material.( OptionalSpecification:90/10copper-nickel or316Lstainlesssteel,Hotdippedgalvanizedsteel).Vesselwillbestampedfor150PSIunderSectionVIIIoftheASMECode.Manufacturer’sdatareportandU-1formsshallbefurnishedtotheowner.Nooverheadclearanceshallberequiredforservicingorremovingtheheatingcoil.Eachheatershallbedesignedtoheat________GPH(______GPM)ofdomesticwaterfrom_______to_______oFwhensuppliedwith______GPMofboilerwaterenteringat_______oFandexitingat_______oF.

OptionalSpecification:Doublewall) Coppertubes,( OptionalSpecification:Stainlesssteel,90/10copper-nickel,admiralty)non-ferrousbafflesandacopper-linedtubesheet.Theheater shallhaveitstemperaturecontrolbulblocatedfordirectsensingofwater.

CONTROLSThewaterheatercontrolsshallbefactoryassembledandpiped.Amodulatingcontrolvalveshallbea(Specify:2-wayor3 way) type,(Specify:PneumaticorElectric)powervalve.Solenoidcontrolvalveswillnotbeaccepted.

• Allbronzeintegralcirculatingpumpwithcopperpipingandisolationvalves• Directmountedboilerwaterandthermometergauges• Highlimitsafetysystem• ASMEratedtemperatureandpressurereliefvalve• Fiberglassinsulationwithpaintedmetaljacket

OPTIONSInaddition,thewaterheatershallbesuppliedwiththefollowingoptionalfeatures:

Option

Option

Option

WARRANTYThewaterheatermanufacturershallwarrantyallcomponentsagainstdefectsinWorkmanshipandmaterialforaperiodofone(1)yearfromdateofstart-upandthepressurevesselforafullfive(5)yearsNonPro-Rated( OptionalSpecification:fullten(10)yearsNonPro-Rated)fromdateofstart-up,providedthattheunitisstartedwithinthree(3)monthsofdateofshipmentandinstalledandoperatedwithinthescopeoftheheater’sdesignandoperatingcapability.Eachwaterheatershallbeshippedwithacompletesetofinstallationandoperatinginstructionsincludingasparepartslistandapproveddrawing.

JOBNAME

REPRESENTATIVE

ENGINEER

CONTRACTOR

Master Specification: Model BWX

HEATING SECTIONThe heating coil shall be fabricated with single wall

The Electric Heater Company ■ P.O. Box 288 ■ Stratford, CT 06615-0288 ■ Phone: 203-378-2659 ■ Fax: 203-378-3593info@hubbellheaters.com ■ www.hubbellheaters.com

Committed to continuous improvement...Continuing research results in product improvement; therefore specifications are subject to

change without notice. For the most updated information, consult the factory directly.

Each heater shall be factory packaged with the following components: