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Heating Coils

Hot Water Heating Coils

U Tube Coils In All Sizes and Styles

FEATURES

High Quality Construction

Eachtubebundleisconstructedaccording toASMErequirementstoensurethehighest performanceineventhemostdemanding application.

Wide Selection

Availableinafullrangeofstylesandsizes tomeetthespecificrequirementsofany commercialorindustrialapplication.

Versatility

HubbellheatingcoilsutilizeSteam,BoilerWater orHighTemperatureHotWater(HTHW)toheat potablewater.

A PPLICATIONS

Schools Hospitals Hotels ProcessSystems

ApartmentBuildings OfficeBuildings ReplacementCoils

HotWaterHeatingCoils

AhighlyefficientU-tubeheatexchangerforheatingpotablewater.

U Tube Heat Transfer Coil

Hubbellwaterheatingcoilsaredesignedtoefficiently transferheatfromasteam,boilerwater,orhigh temperaturehotwater(HTHW)systemtothedomestic potablehotwatersystem.Theprimaryheatsource (steam,boilerwater,HTHW)travelsthroughthetubing intheHubbellheatingcoilandtransfersheattothe secondarysystem(potablewater)withoutallowingeither systemtocomeintodirectcontactwiththeother. Hubbellheatingcoilsaredesignedandconstructedfor maximumefficiencyandlongevity,andadditionalfeatures arereadilyavailabletoprovidethemostappropriatestyleand materialofconstructionforvirtuallyanyapplication.When youspecifyandinstallaHubbellwaterheatingcoil,youwill haveconfidenceinknowingtheownerwillbeprovidedwitha trouble-freeandlonglastingsourceforhotwater.

Highly Reliable And Efficient Domestic Water Heating Coil

Standard Specifications

Tubes:

Material: SizeO.D.: Gauge: DesignWP: DesignTP: DesignTemp.: FoulingFactor: TubeSheetStyle: Copper

3

Optional Features

TubeGauge: TubeO.D.: TubeMaterial: TubeSheet: Head: TubeSheet Style: Construction: FoulingFactor: Supports: BaffleSystem: 20BWG 11/4"(typicallyusedinlongtube bundleswithhighcapacityrecovery ratingsandlowsteampressure) 1/2"O.D.Tube 90/10Copper-Nickel,Type304or 316LStainlessSteel,CarbonSteel 90/10Copper-Nickel,StainlessSteel FabricatedCarbonSteelwithCopper Coating,FabricatedStainlessSteel (304or316L) Fullfacetubesheet ASMEstampedandcertified ANSIclass300flangedconstruction BuiltinaccordancetoTEMA Standards Specifyasrequired Typicallyinstallediftubesareover 30"inlength(pleasespecifyexact location) Usedinshellandtubetypeheat exchangers,notrequiredinstorage tankheatersunlesstheheatingcoil isa"wrappedandbaffle"design utilizingapumpforforcedcirculation overthecoil.

/4"

18BWG 150psi 225psi 350oF 0.00025 BetweenBoltDesign

TubeSheetMaterial: NonFerrous(domesticside) HeadConstruction: FabricatedCarbonSteelto ANSIB16.5Class150 TubeSpacer: Gasket: Warranty: Resinimpregnated composite NonAsbestos 1Year

Formulas

ToDetermineTheBoilerWaterFlowRateRequired

DomesticWater GPHHeated DomesticWater o FT = GPMBoilerWaterRequired

x 0.01666 x o FBoilerWaterDropT

ToDetermineMaximumDomesticWaterRecoveryRate

BoilerWater GPM x 60 x BoilerWaterDrop o FT = GPHDomesticWaterHeated

o FDomesticWaterRiseT

ToDetermineSteamConsumption

DomesticWater GPH

LatentHeat

DomesticWater o FT x 8.33 = Lbs./Hr.Steam

x LatentHeatofSteam

0 970 2 966 5

SteamPressure(psi)

10 953

15 946

20 939

25 933

30 929

40 920

50 912

960

2

Tube Bundle General Configuration

LengthB Inlet TubeSupport Tubes

Outlet Head

Tube Sheet

Tank Flange TankLining

RibGasket RingGasket Tank

Please Complete The Following Information:

1

TubeSheetData OutsideDiameter Thickness Material

4

TubeOutside Diameter Material Gauge Type DesignPressure SingleWall DoubleWall BWG

NumberofTubeholes inthetubesheet

Doesthetubesheethave BoltHolesinit? Yes No IfYes: #ofboltholes Dia.ofboltholes Boltcircle Dotheboltholesstraddle thecenterline? Yes No

DesignTemperature

5 6

Numberofpasses

Numberoftube supports Distancetoeach tubesupport Material O.D.ofsupports Thickness Full Halftype

2

Diameterofthenecknozzleonthetank. OutsideDiameter InsideDiameter

(Includethicknessofnecklining,ifany)

7

CircumferenceOfNeck

Recoveryrated toheat from

oFto

GPH oF

3

Immersionlength oftubes"B"

Whensuppliedwiththefollowing heatsource: psig Steamat Lbs./Hour SteamConsumption BoilerWaterat from oFto HTHWat from GPM oF

Heatingsurfacearea inSq.Ft.(ifknown) Vertical Tankdimensions: Diameter Height Pullspace maximumlength TankType: Horizontal

GPM oFto

oF

8

PressureDrop Steam BoilerorHTHW psi psi 3

Recovery Ratings - Selecting A Properly Sized Steam Heating Coil

Note:Iftheheatingcoilisawrapped,baffled,andforce-circulatedtypepleaseconsultfactoryforsizing.

DeterminingTheTotalSquareFeet ofHeatingSurface

SelectingTheSteamCoil

Step 1

DetermineTheFollowingVariables: SteamSupplyPressure: RecoveryRating: IncomingColdWater: DesiredHotWater: SteamConsumption: psi GPH o F o F Lbs./Hr.

Step 5

Determinethelengthoftheheatingcoil. Note: Acoilinaverticaltankshouldbeascloseas possibletobutnotexceedthediameterofthe vessel. Acoilinahorizontaltankistypically approximately2/3thelengthofthevessel " ApproximateCoilLengthdesired

Step 2

DetermineifthestoragetankistoincludeabuiltinIntra-Tankcirculator,orifitistorelyonnatural convectionforcirculationwithinthetank.

Note:IftheRecoveryRatingisgreaterthanthreetimes thestoragecapacityofthevessel,thenthe heatingcoilmaybewrappedandbaffledtoallow foranintegralpumptoforcecirculatewaterover theheatingcoil.Thepumpmustbesizedforthe maximumGPMrecoveryrating.

Step 6

Step 3

FromChart#2(seefollowingpage)startingwiththe smallestdiametercoil,continuedowntheCoilTotal Sq.Ft.columnuntilthedesiredSq.Ft.asdeterminedinStep4iswithintherange.Thenmultiply thedesiredSq.Ft.ofheatingsurfacebythelength multiplier.Thiswillyieldthetotallengthofthecoil. Iftheresultinglengthislongerthantherequired lengthasdeterminedinStep5,thencontinuetothe nextcoilrangeuntilasuitablelengthcanbeselected.

UseChart#1todeterminetheconversionfactorof GPHheatedpersquarefootofheatingcoilatthe givensteamsupplypressure,temperaturerise,and methodoftankcirculation.

Step 7

Formulatethecoilmodelnumberbyusingthemodel numberconfiguratoronpage8.

Step 4

Solvefortherequiredsquarefootageofheating surfacebydividingthetotalGPHrecoverybythe conversionfactorsolvedforinChart#1onthe followingpage. GPH ConversionFactor =

TotalSquareFt.of HeatingSurface

Example:

A1000gallon48"diameterverticalstoragetankrequiresacoilrated toheat1200GPH40-140oFwhensuppliedwith35psisteam

1200 = 34.2TotalSq.Ft. 35

A. Because1200recoveryislessthan3xthe1000 C. SolveForTheTotalSq.Ft.HeatingSurface

gallonstoragecapacity,nointra-tankcirculator isrequired. supplyequatesto20psigsteaminthe tubes.Movingdowntothe40-140oFrowfor uncirculatedtanks,weseethattheconversion factoris35.0.Thistellsusthat35GPHwillbe heatedfrom40-140oFforeachsquarefootof coilheatingsurface.

B. FromChart#1,weseethat35psigsteam

D. UsingChart#2the"F"Modelcoilisselected

Model D E F Sq.Ft. 34.2 34.2 34.2 Length Multiplier 4.4 2.4 1.3 Length (Inches)

becauseitslengthissuitablefora48"diameter verticaltank.

x x x = 150.4 Toolong = = 82.0 TooLong 44.5 Acceptable

4

Steam Coil Sizing Chart GPHHeatedperSq.Ft.ofHeatingCoil 1 :

Blue(topnumber)indicatescapacitybasedontankswith abuilt-inintra-tankcirculatorforforcedcirculation. Black(bottomnumber)indicatescapacitybasedontanks relyingonconvectionforinter nalcirculation. Temperature 40-120oF o 40-140 F o 40-160 F o 40-180 F o 50-120 F o 50-140 F o 50-160 F o 50-180 F o 60-120 F o 60-140 F o 60-160 F o 60-180 F SteamPressure(psi) Inline/InCoil 15/10 25/15 35/20 50/30 65/40 62.7 67.9 70.8 77.5 81.4 39.4 43.2 47 51.9 57 50 53.1 57.5 63.1 66.9 29 32 35 39 43 39.7 42.7 45 50.4 53.6 21.9 24.4 26.8 30.2 33.5 31.9 33.1 35 41.3 43.1 16.6 18.7 20.8 23.7 26.6 73.5 77.4 81.9 89.9 98.1 43.7 48 52.4 58 63.7 54.1 58.2 61.2 67.4 71.4 31.3 34.6 37.9 42.3 46.7 42.3 45.7 48.6 53.8 57.3 23.1 25.8 28.5 32.1 35.7 33.1 36.3 38.1 43.1 46.9 17.3 19.5 21.8 24.9 27.9 79.4 85.7 93.2 98.9 104.8 49.6 54.5 69.5 66.1 72.8 59.3 63.9 67.9 75.7 80.2 34.4 37.8 41.4 46.4 51.3 45.6 48.9 51.9 59.1 61.5 24.6 27.5 30.4 34.4 38.3 35 36.9 41.3 46.3 48.1 18 20.5 22.9 26.2 29.5

2/0 52.9 30.7 40 22 31.2 15.9 21.9 11.2 59 33.9 43.6 23.6 32.6 16.7 23.1 11.6 67.6 38.1 48.3 25.5 35.3 17.6 23.8 12

5/2 57.3 33.2 43.8 24 33.5 17.6 23.8 12.7 62.4 36.8 46 25.8 34.8 18.5 26.3 13.2 70.8 41.5 51.9 27.9 37.6 19.6 28.1 13.7

10/5 58.9 35.7 46.3 26 36 19.3 26.9 14.3 66.7 39.6 49.4 28 37.9 20.4 28.1 14.8 75.7 44.7 54.8 30.4 40.9 21.6 30 15.4

75/50 125 / 75 150/100 175/125 85.7 94.8 102.1 105.6 60.8 69.6 75.8 82.1 71.3 79.4 83.8 90 46 53 58 63 56.9 63.9 67.3 72.4 36 41.8 46 50.2 46.9 51.9 55 61.3 28.8 33.7 37.3 40.8 103 112 121.1 127.9 67.9 78.1 85.2 92.2 75.4 83.7 89 94 50 57.7 63.2 68.8 60.9 67.7 72.4 77.3 38.4 44.7 49.2 53.8 50 55 58.8 66.9 30.2 35.6 39.4 43.2 112.2 119.9 130.9 139.1 77.7 89.2 97.5 105.9 83.5 94.3 98.9 104.1 55 63.6 69.8 76 66.2 74 79.4 84.4 41.3 48.1 53.1 58 53.1 58.1 65 68.8 32 37.7 41.8 45.8

Note:Thedropinsteampressureistoaccountforthepressuredropacrossthesteamcontrolvalve.

Steam Coil Sizing Chart HeatingCoilSelections 2 :

Base Model C D E F G H J K L Head FlangeSize (150#ANSI) 4 5 6 8 10 12 14 16 18 SteamInletAnd CondensateOutlet PortSizing MaleNPT (Inches) 11/4 11/2 2 3 4 4 4 ToSpec ToSpec Number of Tubes 5 7 13 24 41 59 92 112 143 CoilTotal Sq.Ft. Range 1-24 2-31 4-55 11-105 17-186 34-266 42-364 54-625 76-803 Length Multiplier 6.3 4.4 2.4 1.3 0.76 0.53 0.39 0.28 0.22

Notes: 1.TheInletandOutletportsizesonthesteamcoilcanbebushedtotheactuallinesize. 2.Allsteamcoilsarea2Passdesign. 3.Allsteamcoilsincludetwo(2)1/4"FNPTauxiliarytappingsinthehead. 5

Recovery Ratings - Selecting A Properly Sized Boiler Water Heating Coil

Note:Iftheheatingcoilisawrapped,baffled,andforce-circulatedtypepleaseconsultfactoryforsizing. DeterminingTheTotalSquareFeet ofHeatingSurface SelectingTheSteamCoil

Step 1

DetermineTheFollowingVariables: BoilerWaterEntering: BoilerWaterLeaving: BoilerWaterFlowRate: RecoveryRating: IncomingColdWater: DesiredHotWater: Max.PressureDrop: F F GPM GPH o F o F psi

o o

Step 5

Determinethelengthoftheheatingcoil. Note: Acoilinaverticaltankshouldbeascloseas possibletobutnotexceedthediameterofthe vessel. Acoilinahorizontaltankistypically approximately2/3thelengthofthevessel " ApproximateCoilLengthdesired

Step 2

Step 6

DetermineifthestoragetankistoincludeabuiltinIntra-Tankcirculator,orifitistorelyonnatural convectionforcirculationwithinthetank.

Note:IftheRecoveryRatingisgreaterthanthreetimes thestoragecapacityofthevessel,thenthe heatingcoilmaybewrappedandbaffledtoallow foranintegralpumptoforcecirculatewaterover theheatingcoil.Thepumpmustbesizedforthe maximumGPMrecoveryrating.

FromChart#4startingwiththesmallestdiameter coil,continuedowntheCoilTotalSq.Ft.columnuntil thedesiredSq.Ft.asdeterminedinStep4iswithin therange.ThenmultiplythedesiredSq.Ft.ofheating surfacebythelengthmultiplier.Thiswillyieldthetotal lengthofthecoil.Iftheresultinglengthislongerthan therequiredlengthasdeterminedinStep5,then continuetothenextcoilrangeuntilasuitablelength canbeselected.

Step 3

Step 7

UseChart#3todeterminetheconversionfactorof GPHheatedpersquarefootofheatingcoilatthe givenboilerwaterenteringandleavingtemperatures, temperaturerise,andmethodoftankcirculation.

Formulatethecoilmodelnumberbyusingthemodel numberconfiguratoronpage8.

Step 4

Solvefortherequiredsquarefootageofheating surfacebydividingthetotalGPHrecoverybythe conversionfactorsolvedforinChart#3. GPH

TotalSquareFt.of HeatingSurface

ConversionFactor

=

Example:

A400gallon42"diameterverticalstoragetankrequiresacoilrated toheat950GPH40-140oFwhensuppliedwith200-180oFBoilerWater C. SolveForTheTotalSq.Ft.HeatingSurface

950GPH = 48.7TotalSq.Ft. 19.5

A. Because950recoveryislessthan3xthe400

gallonstoragecapacity,nointra-tankcirculatoris required.

B. FromChart#3,gotothe200-180oFboilerwater D. UsingChart#4the"G"Modelisselected

columnandmovedowntothe40-140oFrowfor uncirculatedtanks.Weseethattheconversion factoris19.5.Thistellsusthat19.5GPHwillbe heatedfrom40-140oFforeachsquarefootof heatingsurface.

Model E F G Sq.Ft. 48.7 48.7 48.7 Length Multiplier 2.4 1.3 .76 Length (Inches)

becauseitslengthissuitablefora42"diameter verticaltank.

x x x = 116.8 Toolong = = 63.3 Toolong 37 Acceptable

Boiler Water Coil Sizing Chart GPHHeatedperSq.Ft.ofHeatingCoil 3 :

Blue(topnumber)indicatescapacitybasedonatankwith abuilt-inintra-tankcirculatorforforcedcirculation. Black(bottomnumber)indicatescapacitybasedonatank relyingonconvectionforinter nalcirculation. Temperature 40-120oF o 40-140 F o 40-160 F o 40-180 F o 50-120 F o 50-140 F o 50-160 F o 50-180 F o 60-120 F o 60-140 F o 60-160 F o 60-180 F BoilerWaterTemperature 180o-160oF 190o-170oF 200o-180oF 212o-192oF 27 30.4 34.0 38.9 20.3 24.0 27.7 32.3 18.0 21.0 24 28 13.7 16.5 19.5 23.2 10.0 13.1 15.4 19.9 8.7 10.7 13.7 16.8 -- -- 10.1 12.9 -- -- 9.1 11.9 28.9 33.2 37.5 43.1 22.1 26.3 30.5 35.6 19.0 22.2 25.5 29.9 14.4 17.6 20.8 24.7 11.0 13.5 16.4 21.0 9.0 11.5 14.3 17.6 -- -- 10.3 14.0 -- -- 9.3 12.3 32.1 36.9 41.8 47.9 24.4 29.1 34.3 39.8 19.9 23.5 27.2 31.9 15.0 18.5 22.3 26.5 11.1 13.7 16.6 22.2 9.1 11.6 14.4 18.5 -- -- 10.3 14.1 -- -- 9.3 12.3

Forothertemperaturerises orboilerwatertemperatures (includingHTHW),please consultfactory.

Boiler Water & HTHW Coil Sizing Chart HeatingCoilSelections 4 :

Base Head C D E F G H J K L Head FlangeSize (150#ANSI) 4 5 6 8 10 12 14 16 18 InletandOutlet PortSizing MaleNPT(Inches) 1 11/4 11/2 2 3 3 4 ToSpec ToSpec 4Pass InletandOutlet PortSize MaleNPT(Inches) 1 1 11/4 11/2 2 21/2 3 ToSpec ToSpec 6Pass Number of Tubes 5 7 13 24 41 59 92 112 143 CoilTotal Sq.Ft. Length Range Multiplier 1-24 6.3 2-31 4.4 4-55 2.4 11-105 1.3 17-186 0.76 34-266 0.53 42-364 0.39 54-625 0.28 76-803 0.22

Notes: 1.TheInletandOutletportsizesonthecoilcanbebushedtotheactuallinesize. 2.ThenumberofpassesonawatertowaterheatingcoilisdeterminedbytheFactory. 3.Boilerwatervelocityistypicallygreaterthan1andlessthan7ft./sec. 4.Pressuredropacrossthecoilistypically5ft.(11psi). 5.Typicallynoauxiliaryportsaresuppliedinawatertowaterheatingcoilhead.

Metric Conversions

Liters x 0.2641 = Gallons Gallons x 3.79 = Liters Gallons x 0.003785 = m m x 264.2 = Gallons

3 3

O

F = (OC x 1.8) + 32 C = ( F - 32) x 0.556

O

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

O

psi x 0.06896 = Bar Bar x 14.5 = psi psi x 6.86 = kPa

1OCT = 1.8OFT

Model Number Configuration

Step1

Step2

Step3

Step4

Step5

Step6

Step7

Base Surface TubingStyle: #Passes: Model: AreaInSq. S=SingleWall 2,4,6 Feet: C =4" D=DoubleWall 5-800Sq.Ft. D =5" E =6" F =8" G =10" H =12" J =14" K =16" L =18" X =Other

Step8

Tube Material: C = Copper N = 90/10 CopperNickel F = 304 Stainless Steel S = 316LSS

Tube SheetMaterial: B = Carbon Steelwith Copper facing N = 90/10 CopperNickel F = 304 Stainless Steel S = 316LSS

Example: F61S2CBF80

Head Construction: N = Not Supplied F = Fabricated Carbon Steel B = Fabricated Carbon Steelwith Copper Lining S = Fabricated Stainless Steel

Immersion Length (Inches): 12-240

Isan8"Class150ANSIflangedheatingcoilwith61 squarefeetofheatingsurfaceinasinglewall2pass coppertubecoilandcarbonsteelcopperfaced tubesheetdesignwithafabricatedsteelheadand animmersionlengthof80inches.

Note:

Allcoilsizingissubjecttochangependingformal factorycalculations.

OptiOnnOte

ManyoptionalfeaturesinaHubbellheating coilarenotindicatedwithinamodelnumber andthereforemustbecalledoutinthewritten specification.

Committed to continuous improvements...

Continuingresearchresultsinproductimprovement;thereforespecificationsaresubjecttochangewithout notice.Forthemostupdatedinformation,consultthefactorydirectly.

ISO 9001:2008

ISO

The Electric Heater CompanyP.O.Box288Stratford,CT06615-0288Phone:(203)378-2659Fax:(203)378-3593 E-mail:[email protected]

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