horizontal air delivery model uhh vertical air delivery...

Catalog 702

Steam/Hot Water Unit HeatersHorizontal Air Delivery Model UHHVertical Air Delivery Model UDH

Model UHH

Model UDH

Units are listed by the Canadian Standards Association

Catalog 702 / of 36

Table of Contents

Design FeaturesHorizontalAirDeliveryModelUHH......................3VerticalAirDeliveryModelUDH..........................4

Dimensional DataHorizontalAirDeliveryModelUHH......................5VerticalAirDeliveryModelUDH..........................6

Performance DataModel UHH

ModelUHHHotWater-HighMotorSpeed..........7ModelUHHHotWater-ReducedMotorSpeed....7ModelUHHSteam-HighMotorSpeed.................8ModelUHHSteam-ReducedMotorSpeed...........8HorizontalModelUHH-MotorData.....................9

Model UDHModelUDHHotWater-HighMotorSpeed........10ModelUDHSteam-HighMotorSpeed...............10VerticalModelUDH-MotorData........................11

Application Guidelines HorizontalAirDeliveryUnitHeaters...................12VerticalAirDeliveryUnitHeaters........................12OtherFactorsThatCanInfluenceSelection..........12SelectionforApplicationsWhereSoundisaFactor..............................................................12BuildingorRoomSoundZones............................12

Locating Unit Heaters ..................................................... 13MonitorTypeBuilding..........................................14MillTypeBuilding................................................14WarehouseBuilding..............................................14Office/ManufacturingBuilding.............................14NarrowBuilding....................................................14

Automatic Control ........................................................... 15

Selection Formulas & Data .......................................... 16- 23Example1: HotWaterCalculation,HorizontalUnit......................................................16HotWaterUnitHeaterMountingHeightCorrectionFactors.................................................16HotWaterCalculationFormulas...........................17

HotWaterHtngCap.ConversionFactors.............18CorrectionFactorsforVaryingWaterTemperatureDrop..................................................18EthyleneGlycolCorrectionFactors......................18Example2:SteamCalculation,HorizontalUnit...19SteamCalculationFormulas.................................20SteamHtngCap.ConversionFactors,HorizontalDelivery...............................................20AirTemperatureRiseConversionFactors,HorizontalDelivery...............................................21PropertiesofSteam...............................................21SteamUnitHeaterMountingHeightCorrectionFactors.................................................21Example3:HotWaterCalculation,VerticalUnit..........................................................22Example4:SteamCalculation,VerticalUnit........22SteamHtngCapacityConversionFactors,VerticalDelivery....................................................23AirTemperatureRiseConversionFactors,VerticalDelivery....................................................23

Motor Data & Power Codes ............................................... 24ModelUHH&UDH.............................................24

Performance Curves ..................................................... 25-28

Options/AccessoriesUnitHeaterFactoryMountedOptions..................29UnitHeaterFieldInstalledOptions.......................29FieldInstalledOptions&AccessoriesforVerticalAirDeliveryModels.......................... 30-31

Piping For Unit Heaters ...................................................... 32

Guide Specifications ..................................................... 33-34HorizontalAirDeliveryModelUHH....................33VerticalAirDeliveryModelUDH........................34

Metric & English Conversion ............................................. 35

Catalog 702 / of 36

Design Features

Coil■ Sturdy,mechanicallybondedcopper/aluminum

coilwith12finsperinchwith1/2˝nominaltubes■ HighBtucapacity■ Coilsaretestedat275psigairunderwater.Coils

aresuitableforoperatingupto150psigsteamor220psigwaterand375ºF

■ Finsarecontinuousacrosswidthanddepthofcoilandareverticallyorientedtoresistcollectionofdirtandforeignparticles

Enclosure■ Rugged18-gaugecasingprotectsagainstabuse■ Twopieceenclosureallowsforeaseof

maintenance■ Durableandattractivegraytexturedepoxy

powdercoatingisstandard

Louvers■ Adjustablehorizontallouversarestandardfor

adjustmentofairdistribution■ Constructedofrigid18-gaugesteel■ Colormatchedtoenclosureforconsistent

appearance

Piping Connection■ NPTconnectionspermitquickandeasypiping

withnoadditionalcomponentsneeded■ Mountedtocasingforrigidity

Mounting Hardware■ Heavydutythreadedhardwareallowsunittobe

mountedwiththreadedrod■ Optionalpipehangerkitavailableformounting

unitwiththreadedpipe

Formed Air Inlet/Outlet■ Die-formedventuriinletdrawsairsmoothly

intounitformaximumairflow

Motor■ Allmotorsaretotallyenclosed,permanently

lubricatedforextended,reliablemotorlife■ Lowoperatingcostandquietoperation■ Whenteamedwithvariablespeedcontrol,fan

speedadjustmentisinfinite■ Equippedwiththermaloverloadprotection

Fan■ Lightweightanddynamicallybalanced■ Designedtomoveairefficientlywithminimum

powerrequirement

Finger Proof Fan Guard■ Standardequipmentper(CSA,OSHA)■ Securelymountsmotortounitwhileabsorbing

vibrationwithrubberisolationmounts

Horizontal Air Delivery Model UHH

Catalog 702 / Page � of 36

Design Features

Coil■ Sturdy,mechanicallybondedcopper/aluminum

formedcoilwith12finsperinchwith1/2˝nominaltubesbetweenextra-heavysteelpipeconnections

■ HighBtuCapacity■ Coilsaretestedat275psigairunderwater.Coils

aresuitableforoperatingupto150psigsteamor220psigwaterand375ºF

■ Finsarecontinuousalongwidthanddepthandareverticallyorientedtoresistcollectionofdirtandforeignparticles

Formed Air Inlet/Outlet■ Die-formedventurioutletdrawsairthroughunit

formaximumairflow

Air Diffusion■ Multiplearrangementsavailableforunlimitedair

diffusionpatterns■ Accessoriesarefinishedwithepoxy-based

powdercoatingtomatchunit

Finger Proof Fan Guard■ Standardequipmentper(CSA,OSHA)■ Gives100%safetyconfidenceformountingin

anyarea■ Constructedofpaintedsteelrod

Fan■ Lightweight,dynamicallybalanced■ Designedtomoveairefficientlyandquietlywith

minimumpowerrequirement

Casing■ Rugged16-gaugecasingprotectsagainstabuse■ Separatetopandbottomenclosurepiecesallow

foreaseofmaintenance■ Attractivegraytexturedepoxypowdercoatingis

standardanddurable

Motor■ Allmotorsaretotallyenclosed,permanently

lubricatedforextended,reliablemotorlife■ Lowoperatingcostandquietoperation■ Designedforeasymotorremoval,importantfor

highceilingapplications■ Equippedwiththermaloverloadprotection■ Highefficiency

Mounting Hardware■ Heavydutythreadedhardwareallowsunittobe

mountedwiththreadedrod■ Optionalpipehangerkit(requires2)available

formountingunitwiththreadedpipe

Junction Box■ Allunitwiringiscontainedinanelectrical

junctionboxthatismountedtotheunitheatercasing

Piping Connection■ Durablesteelheaderhasexternal■ NPTthreadsforeasyconnection

Vertical Air Delivery Model UDH

Catalog 702 / Page � of 36

Dimensional Data

Unit Size 18 through 86 Unit Size 108 through 340

Unit Size A B C D E G NPTCONNECTIONS

FAN DIAMETER

APPROX.SHIPPING

WT. LB.

Notes:1. All dimensions in inches.2. UHH-18 through UHH-86 have side NPT female pipe connections.3. UHH-108 through UHH-3�0 have top and bottom NPT male pipe connections.�. Units should be mounted a minimum of �" from wall.

UHH-18UHH-24UHH-33UHH-47UHH-63UHH-86

UHH-108UHH-121UHH-165UHH-193UHH-258UHH-290UHH-340

1�1�1919191927272727333339

16 7/816 7/819 3/�19 3/�2� 3/�2� 3/�2� 7/82� 7/831 7/831 7/8

�0 13/16�0 13/16�0 13/16

7 1/27 1/27 1/27 1/28 1/28 1/29 1/29 1/21010111112

� 1/2� 1/2� 3/�� 3/�� 3/�� 3/�6 1/�6 1/�6 1/�8 3/88 3/88 3/88 3/8

1212121218181818

2� 7/82� 7/832 7/832 7/832 7/8

3 1/23 1/23 1/23 1/23 1/23 1/23 1/23 1/23 1/23 1/23 1/23 1/23 1/2

��

� 1/�� 1/�6 1/�6 1/�6 1/�6 1/�7 1/�

10101�1�1�1�———————

——————2222

2 1/�2 1/�2 1/�

3/� 3/� 3/� 3/� 3/� 3/�

1 1/21 1/21 1/21 1/2

222

99

12121�1�1818202022222�

18193�36�1�276779�96

16�167182

F H J

Table 1. Dimensions – Model UHH

Horizontal Air Delivery Model UHH

Catalog 702 / of 36

3-1/�3-1/�3-1.�3-�/83-�/8�-1/2�-1/2�-1/2

13-3/�1�-3/�17-3/�19-3/�21-3/�23-3/�27-3/�29-3/�

232�3�303�3��3�3

1213

1�-7/161920212�27

3-1/83-1/83-1/8

��

2-3/�2-3/�2-3/�2-3/�2-3/�2-3/�2-3/�2-3/�

Dimensional Data

Unit Size 42, 59 Unit Size 78 through 610

Table 2. Dimensions – Model UDH

UNIT SIZE A B C D E F G MALE NPTCONNECTIONS

FAN DIAMETER

APPROX.SHIPPING

WT. LB.UDH-42, 59UDH-78, 95

UDH-139, 161UDH-193, 212UDH-247, 279UDH-333, 385

UDH-510UDH-610

6-3/86-3/810-3/812-3/812-3/818-3/818-3/818-3/8

1213

1�-7/161718212�27

1�17

18-7/820-7/822-7/82�-3/�28-3/�30-3/�

1-7/81-7/8

222

2-1/22-1/22-1/2

1-1/21-1/21-1/2

22

2-1/22-1/22-1/2

�26�99

1261��189270290

H I

Vertical Air Delivery Model UDH

Note:All dimensions in inches.

Catalog 702 / of 36

Performance Data

Horizontal Air Delivery Model UHH (Hot Water)Table 3. Hot Water (High Motor Speed)

Table 4. Hot Water (Reduced Motor Speed)

UnitSize Btu/Hr.

GPM

WATER DATA MOTOR DATA

10,6601�,18620,09027,71638,130�0,7�866,�2073,800109,060127,920

0.�90.830.120.210.�70.790.8�1.0�2.�83.3�

3103�0�90�6�87010�012�01�1�19902310

390��0390��60��0�8��90680

929898

10�10110�110108111111

91011131�1616171819

131�1618212223262728

IIIIIIIIIIIIIIIIIII

1/301/301/1�1/1�1/101/101/8 1/8 1/� 1/�


UHH-108UHH-121UHH-165UHH-193

1.31.72.�3.��.76.28.19.013.31�.6

12001200120012001200120087�87�87�87�

PressureDrop

(Ft. of water)SoundClass**

Max.Mounting

Height(ft.)*

HeatSpread@

MaxHeight*

CfmOutlet

VelocityFPM

Final AirTemp. (°F)

HP Approx.RPM

AIR DATA

Btu/Hr. Min./MaxGPM

SoundClass**

Max.Mounting

Height(ft.)*

HeatSpread@

MaxHeight*

CfmOutlet

VelocityFPM


HPUnitSize Approx.

RPM

WATER DATA MOTOR DATA

13,00017,3002�,�0033,800�6,�0061,90081,00090,000133,0001�6,000198,00022�,000273,000

1.31.72.�3.��.76.28.19.013.31�.619.822.�27.3

0.�90.830.120.210.�70.790.8�1.0�2.�83.3�3.��.��3.2�

0.3/�.00.3/�.00.�/10.00.�/10.00.�/1�.00.�/1�.00.�/20.00.7/20.02.0/30.02.0/30.02.�/�0.02.�/�0.02.�/�0.0

�00��0630730112013�01��0177�2�0029003900�300�130

�00�70�9��80�9071060�69073�8�089�9909��

909696

10398

103108107109110107108109

91011131�1616171819202122

182022263031333638�0�2�6�0

IIIIIIIIIIIIIIIIIIIIIIVIVVVV

1/301/301/1�1/1�1/101/101/8 1/8 1/� 1/� 1/3 1/2 1/2



HORI

ZONT

AL A

IR D

ELIV

ERY

Model TypeUHH GPM

PressureDrop (Ft. of

water)

AIR DATA

1��01��01��01��01��01��0107�107�107�107�107�107�107�

HORI

ZONT

AL A

IR D

ELIV

ERY

Model TypeUHH

Notes:1. Performance Data at Standard Conditions of 200°F Entering Water, 60°F Entering Air and 20°F Water Temperature Drop.* Units with horizontal louvers open 30° from vertical plane.** See page 12 for Sound Class definitions.

Catalog 702 / of 36

Performance Data

Horizontal Air Delivery Model UHH (Steam)Table 5. Steam (High Motor Speed)

Btu/Hr. Sq. Ft.EDR Sound

Class**

Max.Mounting

Height(ft.)*

HeatSpread@

MaxHeight*

CfmOutlet

VelocityFPM


Condensatelb./hr. HP

UnitSize Approx.

RPM

AIR DATA MOTOR DATA

18,0002�,00033,000�7,00063,00086,000108,000121,00016�,000193,0002�8,000290,0003�0,000

182�3��966891111261702002673003�2

7�1001381962633�8��0�0�68880�107�12081�17

�00��0630730112013�01��0177�2�0029003900�300�130

�10�80�1060060�73062�71�7�0870920

101096�

10210910912011211912�123121122121122121

99

10121�1�1�161718192020

1718202�293132333�37�0��6

IIIIIIIIIIIIIIIIIIIIIIVIVVVV

1/301/301/1�1/1�1/101/101/8 1/8 1/� 1/� 1/3 1/2 1/2



HORI

ZONT

AL A

IR D

ELIV

ERY

Model TypeUHH

1��01��01��01��01��01��0107�107�107�107�107�11001100

Notes:1. Performance Data at Standard Conditions of 2 lb. Steam and 60°F Entering Air.* Units with horizontal louvers open 30° from vertical plane.** See page 12 for Sound Class definitions.

Table 6. Steam (Reduced Motor Speed)


Class**

Max.Mounting

Height(ft.)*

HeatSpread@

MaxHeight*

CfmOutlet

VelocityFPM



UnitSize Approx.

RPM

AIR DATA MOTOR DATA

1�,80019,70027,10038,�00�1,70070,�0088,60099,20013�,3001�8,300

1�2129�0��739110313916�

628211316121629�369�13�6�6�9

3103�0�90�6�870

10�012�01�1�19902310

39��39��6��70�70�00�7060069�

10�11211112311�12312612�123123

99

10121�1�1�161718

12131�18212223232�26

IIIIIIIIIIIIIIIIIII

1/301/301/1�1/1�1/101/101/81/81/�1/�


UHH-108UHH-121UHH-165UHH-193HO

RIZO

NTAL

AIR

DEL

IVER

Y

Model TypeUHH

12001200120012001200120087�87�87�87�

Catalog 702 / of 36

�.8/2.3-2.��.8/2.3-2.��.8/2.3-2.��.8/2.3-2.��.8/2.3-2.��.8/2.3-2.�6.8/3.1-3.�6.8/3.1-3.�6.8/3.1-3.�6.8/3.1-3.�7.8/3.6-3.99.6/�.7-�.89.6/�.7-�.8

VOLTAGE, MOTOR TYPE AND POWER CODE115/60/1 230/60/1 230/460/60/3 115/208-230/60/1

Motor HPUnit Size

AAmps

GAmps

IAmps

VAmps



1/301/301/1�1/1�1/101/101/81/81/�1/�1/31/21/2

0.700.700.720.721.301.301.�81.�82.6�2.7�3.60�.68�.68

0.220.220.�00.�00.�90.�90.800.801.�01.�02.002.202.20

N/AN/AN/AN/A

1.�/0.71.�/0.72.2/1.12.2/1.12.2/1.12.2/1.12.2/1.12.2/1.12.2/1.1

Totally Enclosed w/ Thermal Overload

Totally Enclosed w/ Thermal Overload Totally Enclosed Explosion Proof w/ Thermal

Overload

Performance Data

Horizontal Air Delivery Model UHHTable 7. Motor Data

Power Code A:Motorsare115volt,60Hertz,singlephase,totallyenclosedwithbuilt-inthermaloverloadprotectionandapermanentsplitcapacitortominimizecurrentdraw.

Power Code G:Motorsare230volt,60Hertz,singlephase,totallyenclosedwithbuilt-inthermaloverloadprotectionandapermanentsplitcapacitortominimizecurrentdraw.

Power Code I:Motorsare230/460volt,60Hertz,threephase,totallyenclosedpolyphaseinductiontype.

Power Code V:Motorsare115/208-230volt,60Hertz,singlephase,explosion-proof,totallyenclosedwithbuilt-inthermaloverloadprotectionsplitphasetype.

Explosion proof motorsaresuitableforClassI,GroupC&D;ClassII,GroupsF&G;ClassIII.CanadianStandardAssociation(CSA)require-mentsstatethattheexplosionproofunitsmaynotbeusedwithafluidtemperatureinexcessof329˚Forpressuresgreaterthan87psigandstillmaintaintheirexplosionproofratingforNationalElectricCodeignitiontemperatureratingT3Bforgraindust.ClassI,GroupDMotorsareforoperationsinareascontaininggasoline,petroleum,naphtha,benzene,butane,propane,alcohol,acetone,lacquersolventornaturalgas.ClassII,GroupFmotorsareforoperationsinareascontainingcarbonblack,coalorcokedust.ClassII,GroupGmotorsareforoperationsinareascontainingflour,starchorgraindust.ClassIIImotorsareforoperationsinareascontainingeasilyignitablefibersandflyings.

Catalog 702 / of 36

30,�00��,300�8,�0071,000111,000128,8001�2,7001�9,000197,000220,00026�,000308,000�03,000��9,000

3.1�.�6.07.211.313.11�.�16.119.922.226.731.1�0.9�6.3

0.090.180.�30.610.8�1.110.810.981.6�2.011.271.682.322.�2

0.�/10.00.8/1�.01.0/20.01.3/2�.01.0/30.01.3/�0.01.�/�0.02.0/60.02.0/60.02.3/7�.02.8/7�.03.3/7�.03.0/100.06.0/100.0

IIIIIIIIIIIIIIIVIVIVVVVIVIVI

111�1�1718222�2�27313033�039

1519212325303335363938404847

1721232�28333637�0�7�6�960�8

9�011�01��0177�2�0029003900�300�130�80066007860

10790123�0

7769�0990113212811�8816�0180918032037196619282�8723�3

91979699

1031039�96979799979�97

1/101/101/61/61/�1/�1/21/2�/8�/811

1-1/21-1/2

1��01��01��01��0107�107�900

107�900

107�107�11�011�011�0

Vertical Air Delivery Model UDHTable 8. Hot Water (High Motor Speed)

Btu/Hr. Min./MaxGPM

SoundClass**

Max.Mounting

Height(ft.)*

HeatSpread@

MaxHeight*

CfmOutlet

VelocityFPM


HPUnitSize Approx.

RPM

WATER DATA MOTOR DATAModel TypeUDH GPM

PressureDrop (Ft. of

water)

AIR DATA

UDH-42UDH-59UDH-78UDH-95

UDH-139UDH-161UDH-193UDH-212UDH-247UDH-279UDH-333UDH-385UDH-500UDH-610

VERT

ICAL

AIR

DEL

IVER

Y

Notes:1. Performance Data at Standard Conditions of 200°F Entering Water, 60°F Entering Air and 20°F Water Temperature Drop. * Equipped with cone jet deflector, blades fully opened are shown in bold. Non-bolded mounting height/spread data is for units without deflectors. Please see page 31 for additional outlet accessory performance data.** See page 12 for Sound Class definitions.

1115161719212425273130334040

1518192124283133343737364443

�2,000�9,00078,0009�,000

139,000161,000193,000212,0002�7,000279,000333,00038�,000�00,000610,000

17�2�632�396�7967180�883

102911631388160�20832��2

IIIIIIIIIIIIIIIVIVIVVVVIVIVI

9�011�01��0177�2�0029003900�300�130�80066007860

10790123�0

7799�39921136128�1�9016�31812180�20�0196819302�9023��

10311111011311611�109109107107110106103106

�36181991��1672002192�62883��398�18631

Table 9. Steam (High Motor Speed)


Class**

Max.Mounting

Height(ft.)*

HeatSpread@

MaxHeight*

CfmOutlet

VelocityFPM



UnitSize Approx.

RPM

AIR DATA MOTOR DATA



VERT

ICAL

AIR

DEL

IVER

Y

Model TypeUDH

11131�161821232�263030303736

1720222�27313�3739��6��

1113141618212325263030303736

1/101/101/61/61/�1/�1/21/2�/8�/811

1-1/21-1/2

1��01��01��01��0107�107�900

107�900

107�107�11�011�011�0

Notes:1. Performance Data at Standard Conditions of 2 lb. Steam and 60°F Entering Air - High Motor Speed* Equipped with cone jet deflector, blades fully opened are shown in bold. Non-bolded mounting height/spread data is for units without deflectors. Please see page 31 for additional outlet accessory performance data.** See page 12 for Sound Class definitions.

Performance Data

Catalog 702 / of 36

Performance Data

�.8/2.3-2.��.8/2.3-2.��.8/2.3-2.��.8/2.3-2.�6.6/3.1-3.36.6/3.1-3.39.6/�.7-�.89.6/�.7-�.89.6/�.7-�.89.6/�.7-�.8

————


Motor HPUnit Size

AAmps

GAmps

IAmps

VAmps



1/101/101/61/61/�1/�1/21/2�/8�/811

1-1/21-1/2

1.301.302.202.202.7�2.7��.68�.68�.8��.8�8.9�———

0.�90.�91.101.101.�01.�02.202.203.�03.�0�.�0———

1.�/0.71.�/0.71.�/0.71.�/0.72.2/1.12.2/1.12.2/1.12.2/1.1�.2/2.1�.2/2.1�.2/2.1�.2/2.1�.0/2.��.0/2.�



Overload

Vertical Air Delivery Model UDH Table 10. Motor Data






Catalog 702 / of 36

Application Guidelines for heat loss calculations should reference the ASHRAE Guide or other recognized HVAC engineering publication (or other authoritative source). Essential engineering data should include design conditions for the following:

• BTU requirements• CFM• Final air temperature• Steam or hot water applications• Building type (architectural special needs, if any)• Location and spacing of units• Mounting heights• Heat throw or air diffusion• Sound classifications

Horizontal Delivery Unit HeatersCharacterizedbyitshorizontalairdelivery,thisunitheateriswidelyusedforgeneralindustrialandcommer-cialheating.Horizontallypositionedlouvers(standard)attachedtotheair-dischargesideoftheunitcanbead-justedtolengthenorshortenheatthrowand/ordecreaseorincreasethemountingheight.Adjustableverticallou-vers(optional)whenusedincombinationwithhorizontallouverspermitcompletedirectionalcontrolofheatedair.

Vertical Delivery Unit HeatersDuetotheirdirectlydownwardairdischarge,verticalunitsareparticularlydesirableforheatingareaswithhighceilingsandwherecranewaysandotherobstruc-tionsdictatehighermountingofheatingequipment.Fourairdistributiondevicesprovidingdistinctivelydifferentheat-throwpatternsareofferedtomeetspecificheat-throwandheat-spreadrequirements(seeVerticalAirOutletOptionspage30).

Other Factors Which Can Influence SelectionWhereitisnecessarytomountunitslow,selectmod-elswithlowercfmratingsasthegreatervolumesofairhandledbylargerunitscancreateexcessiveairmove-mentwhenmountedlow.Betterairdistributionandeconomyofheating-systemoperationisrealizedwhenagreaternumberofsmallerunitheatersareusedinsteadofafewernumberoflargerunits.Soundratingsofcertainmodelsmaylimittheiruseforcertainapplications.Insuchinstances,selectunitsbysizesuchthatthetotalnumberofunitsmeettheheatlossandsoundcriteria.CanadianStandardsAssociation(CSA)requirementsstatethatexplosion-proofunitsmaynotbeusedwithafluidtemperatureinexcessof329°For87psiandstillmaintaintheirexplosion-proofrating.

Application Guidelines

Selection for Applications Where Sound is a FactorWhereverfansandmotorsareusedtomoveair,soundisgenerated.Such,ofcourse,isthecasewithunitheaters.Soundemissionsofacertainlargeunitheatermodelmaylimititsuseinapplicationswheresoundlevelrequire-mentsmaybecritical.Insuchinstances,smallermodelsshouldbeselectedwhichintotalmeettheheat-loadcrite-riaofalargersingleunitheater.Cfmandvelocity(fpm)ratingsaregenerallyindicativeofsoundlevels,i.e.,thehigherthecfmandvelocityratingofaunitheater,thegreaterthesoundemissionsfromtheunit.

Sound Classification:DaikinUnitHeatersaredesignedtominimizesoundcreatedbyairflowandmotoroperationbycarefulcomponentselectionandinletgeometry.TheSoundClassificationlistbelowshowstypicalroomsandtheircorrespondingsoundclassrating.Whenplacedinthepairedroom,theunit’ssoundlevelshouldberelativelycomparabletotheambientsoundlevel.

Building or Room Sound ZonesType of Building or Sound Room Sound Zone Zone Apartments, Class Rooms, Court Rooms, Executive Offices, Hospitals, Libraries, Museums, Residences .........................................................I

General Offices, Hotel Dining Rooms, Private Offices, Recreation Rooms, Show Rooms, Small Stores, Tea Rooms, Upper Floors at Department Stores ............................................ II

Bank Lobbies, Cafeterias, Drug Stores, General Offices, Grocery Stores, Gymnasiums, Main Floors at Department Stores, Public Buildings, Post Offices, Restaurants, Service Stations.................................................III

Factories, Foundries, Garages, Machine Shops, Office Machinery Rooms,Packing Plants, Shipping Platforms, Steel Mills, Stadium Common Areas .............. II-VII

Boiler Works, Forge Shops, Round Houses, Steel Fabricating Shops..........VII

Catalog 702 / of 36


Locating Unit Heaters1. Alwaysdirectairflowtoregionsofgreatestheatloss.

2. More,smallerunitswillprovidebetterheatdistribu-tionthanfewerlargerunits.

3. Thenumberofunitsuseddependsontheheatthroworheatspreadoftheindividualheaters.Arrangeunitheaterstominimizepipingcosts.

4. Morethananyothersinglefactor,impropermount-ingheightisresponsibleformostunsatisfactoryunitheaterinstallations.Whenheatersaremountedhigherthanrecommended,improperheatdistributionistheresultandcomfortisreduced.

• Mountunitsatthelowestpracticalandallowablelevel.

• Watchfinalairtemperatureonunitsmountedatlowerlevelsorinheavilyoccupiedareastoensurethatairiswarmenoughtoavoidnoticeabledrafts.

5. Itisadvisabletolocateunitheaterssothattheirairstreamsaresubjectedtoaminimumofinterferencefromcolumns,machinery,partitionsandotherobstacles.

6. Unitheatersinstalledinabuildingexposedtoapre-vailingwindshouldbelocatedsoastodirectalargeportionoftheheatedairalongthewindwardsideofthebuilding.

7. Horizontaldeliveryunitheatersshouldbelocatedsothattheairstreamsoftheindividualunitswipetheexposedwallsofthebuildingwitheitherparallelfloworangularflowwithoutblowingdirectlyagainstthewalls.Heatersshouldbespacedsothateachsup-portstheairstreamfromanotherheater.Thissetsupacirculatoryairmovementwhichproducesablanketofwarmairalongthecoldwall.

8. Horizontalunitsshouldbearrangedsotheydonotblowdirectlyatworkers.Theirairstreamsshouldbedirecteddownaisles,intoopenspacesonthefloor,oralongexteriorwallsofthebuilding.

10. Largeexpansesofglassorlargedoorsthatarefrequentlyopenedshouldbecoveredbylong-throwunitheaterssuchaslargehorizontaldeliveryunitheaters.

11. Inbuildingshavinghighceilings,verticaldeliveryunitheatersequippedwiththecorrectair-distribu-tiondevicesarerecommendedtoproducecomfortincentralareasofthesamebuilding.

12. Whenonlyverticaldeliveryheatersareused,theyshouldbelocatedsothatexposedwallsareblanketedwiththewarmairtheydeliver.

13. Severalunitheatersmaybeoperatedbyasinglether-mostat.Inlargeopenspaceswherevariousactivitiesarecarriedon,zonalheatingwillimprovecomfortandgenerallyreducefuelcosts.Unitheatersmayalsobecontrolledindividually,eithermanuallyorbyathermostat.

14. Unitheaterfansmaybeoperatedduringwarmweathertomaintainaircirculation.Ifthisisdesired,unitsshouldbeequippedwithfanswitcheswhentheyareinstalled.

15. Illustrations appearing on page 14 & 15 suggestvarious spacing and arrangements of unit heatersfor providing adequate heating coverage.Properplacementofunitheatersinaspacetobeheatedwillalsosimplifypipingandreduceinstallationcosts.

Catalog 702 / Page 1� of 36


Monitor-Type BuildingThisapplicationutilizesbothhorizontalandvertical deliveryunitheaters.Verticalunitslocatedinthecentralhigh-ceilingareaclearthecranewaybelowthem.Horizontalunitsareusedinthelow-ceilingareas.

Mill Type BuildingHereeachhorizontaldeliveryunitheatersupportstheairstreamfromanothertosetupacirculatoryairmove-mentwithinthespacetobeheated.Thisarrangementillustratesthebasicprincipleofunitheaterlocation.

Warehouse BuildingThistypicalaapplicationofhorizontalunitheatersillustratesthemaximumheatcoveragewithaminimumnumberofunits.

Narrow BuildingHeatspreadfromverticalunitssuppliesgoodcoverageoftheentirefloorspaceandblanketswallswithwarmedair.

Office/Manufacturing Building



Automatic ControlControl SequencesThefollowingcontrolsequencedescriptionsarecommonplaceforsteam/hotwaterhorizontalandverticalairdeliveryunitheaters.

Continuous Fan Operation - Intermittent Hot/Cold Coil - Aroomthermostatcontrolsavalvewhichopenstoallowsteamorhotwatertosupplytheunitandclosestoshutoffthesupplywhenthethermostatissatisfied.Thefanrunscontinuously.

Intermittent Fan Operation - Hot Coil - Aroomthermostatstartsandstopsthemotorwhenathermostatcallsforheat,themotorisenergized.Anaquastatissometimesstrappedtothesupplyorreturnpipingtopre-ventfanoperationwhenheatisnotbeingsuppliedtotheunitheater.Theheatingfluidiscontinuouslysuppliedtotheunitheaterevenwiththemotoroff.Afterthermostatissatisfied,motorisde-engergized.

Intermittent Fan Operation - Intermittent Hot/Cold Coil - Topreventaunitheaterfromdeliver-ingcoldairwhenthethermostatis“callingfor”heat,anaquastatpreventsfanoperationwhentheheatsupplytothecoilisinterrupted.Conversely,theaquastatenergizesthefanwhentheautomaticsupplyvalveopenstoallowtheheatingmediumtoentertheunitheatercoil.

Energy Saver – Optional ControlAn“EnergyStar”controlusedwithverticalairdeliveryunitheaterscanautomaticallydeliverwarmstratifiedairtothezoneofoccupancy,minimizeceilingheatlossandoverallenergyconsumption.Twothermostatsandanauxiliaryswitcharerequiredforoneormoreunitheat-ers,plusatwo-positionsupplyvalveforeachunitheater.Theroomthermostatcontrolsthetwo-positionsupplyvalvetoeachunitheater.Anauxiliaryfanswitchstopstheunitheaterfanwhenthesupplyvalveisclosed.Theotherthermostat(“EnergySaver”Control)islocatedneartheverticalunitheaterattheceilingorroofwherewarmairtendstostratify.

Theroomthermostatwillautomaticallysignalthesupplyvalvetoclosewhenitssettinghasbeen“satisfied,”How-ever,thethermostatmountedneartheunitheatercanoverridetheauxiliaryswitchtoallowtheunitheaterfantorunwiththesupplyvalveclosed,untilthetemperatureatthehigherlevelfallsbelowtheset-pointofthehighermountedthermostat.

Additionally,airdeliveredbyaverticalunitheaterlocatedinhighambienttemperaturesprevalentattheupperlevelswithinabuildingisexcessivelybuoyantandfrequentlypreventstheunitheaterfanfromdeliveringtheheatedairtotheoccupancylevelofthebuilding.Byrecyclingtheheatwhichbuildsupatthesehigherlevels,thetwo-thermostatcontrolarrangementcontributestoincreasedcomfortandlowerheatingcosts.

Catalog 702 / of 36

Selection Formulas & Data

Example 1: Hot Water Calculation, Horizontal Unit Given Design Conditions:HorizontalAirDeliveryRequestedHeatingload:120,000Btu/hr.EnteringWaterTemperature:180ºFEnteringAirTemperature(EATA):50ºF

Application ProcedureI. Unit Selection Table 12 (page 18) BtuS

= BtuA =Hot Water Conversion Factor = 0.940 HotWaterConversionFactor

= 120,000 =0.940

BtuS = 127,660withRatedCapacityof133,000Btu/HR.atStandardConditions

II. Actual Heating Capacity BtuA=BtuS×HeatingCapacityFactorBtuA=133,000×0.940=125,020 Btu/HR.

III. Final Air Temperature Table 2 (page 6)Model UHH-165 CFMS = 2500 FATA=EATA+ [(460+EATA) × BtuA 576 CFMS]

=50+ [(460+50) × 125,020] 576 2500

=50+ [.8854×50.0]FATA = 50 + 44.27 = FATA = 94ºF

IV. Water Temperature Drop Table 2 (page 6) GPM = 13.3 WTDA = BtuA

(500×GPMA)WTDA =

125,020 500×13.3 =

WTDA = 19.5ºF

V. Maximum Mounting Height Table 2 (page 6) Standard Mounting Height = 18 ft. MMHA=MMHS×CorrectionFactor=Table 11 (page 16) = 18×1.08Mounting Height Correction Factor=1.08 MMHA = 19.4 ft.

Table 11. Hot Water Unit Heater Mounting Height Correction Factors

Note:Factors are for use with entering air temperature ranging from �0°F to 70°F.

WATER TEMPERATURE DROP, (°F)

Correction Factor

150

1.2�

160

1.19

170

1.13

180

1.08

190

1.0�

200

1.00

210

0.97

220

0.9�

230

0.91

240

0.89

250

0.86

260

0.8�

270

0.82

280

0.80

290

0.78

300

0.77

140

1.33

Catalog 702 / of 36

Other Useful Formulas

Horizontal Unit Heaters (UHH):

FATA=EATA+ [ ]

Vertical Unit Heaters (UDH):

FATA=EATA+ [ ]

Terminology:

BtuA = Capacityatnon-standard(actual)conditionsBtuAG = CapacitywithGlycolsolution.BtuS = Capacityatstandardconditions(200˚Fentering

watertemperature,60˚Fenteringairtempera-ture)fromTables2and3onpage6(UHH)andTable8onpage10(UDH).

CfmS = UnitairflowasfoundinTables2and3onpage6(UHH)andTable8onpage10(UDH).

EATA = EnteringairtemperatureatactualconditionsFATA = FinalairtemperatureatactualconditionsGPMA = WaterflowrateatactualconditionsinGPMGPMS = Flowrateatstandardconditions(200˚Fenter-

ingwatertemperature,60˚Fenteringairtem-perature)fromTables2and3onpage6(UHH)andTable8onpage10(UDH).

WPDA = Waterpressuredropatnon-standard(actual)conditions.

WPDS = Waterpressuredropatstandardconditions(200˚Fenteringwatertemperature,60˚Fenter-ingairtemperature)fromTables2and3onpage6(UHH)andTable8onpage10(UDH).

1. Table 12 (page 18)Todeterminetheheatingcapacity(Btu/hr.)ofaunitheateratawatertemperatureand/orenteringairtemperatureotherthanstandardconditionsof200°Fenteringwatertemperature,60°Fenteringairtemperature.Tofindactualunitheatercapacitywhenoperatingatnon-standard(actual)conditions:BtuA = BtuS × Heating Capacity FactorToselectaheatercapacitybasedonstandardconditionstomeetaheatingcapacityatnon-standard(actual)conditions:BtuS = BtuA / Heating Capacity Factor

2. Table 13 (page 18)TodeterminehowwatertemperaturedropaffectsheatcapacityinBtu,waterflowrateisinGPMandpressuredropinfeetofwater.Thesefactorsshouldbeappliedtothevaluesatactualenteringwaterandairtemperatureconditions.Tofindactualunitheatercapacityorflowrateorpressuredropwhenoperatingatnon-standard(actual)conditions:BtuA = BtuS x Btu Correction FactorGPMA = GPMS × GPM Correction FactorWPDA = WPDS × WPD Correction FactorToselectaheatercapacitybasedonstandardcon-ditionstomeetaheatingcapacityatnon-standard(actual)conditions:BtuS = BtuA ÷ Btu Correction Factor

3. Table 14 (page 18)Todeterminehowglycolsolutionsaffectheatercapacity.Thesefactorsshouldbeappliedtotheheatercapacityatactualenteringwaterandairtemperatureconditions.Tofindactualunitheatercapacitywhenoperatedwithglycolsolution:BtuAG = BtuS (or BtuA ) × Glycol CorrectionFactorToselectaheatercapacitybasedonstandardcondi-tionstomeetaheatingcapacitywithglycolsolution:BtuS (or BtuA ) = BtuAG ÷ Glycol CorrectionFactor

4. Table 11 (page 16)Todeterminehowwatertemperaturesotherthan200°Faffectmountingheightofunit.Max. Mounting HeightA = Max. MountingHeightS × Correction Factor

(460+EATA)x

BtuA

576 CFMS

(576xCFMS)-1

BtuA

(460+EATA)

WTDA= ( BtuA )500xGPMA

Hot Water Calculation Formulas


Catalog 702 / of 36

5

1.23

�.6�

17.2�

To obtain Btu for other Water Temperature Drops, multiply basic Btu rating by applicable Factor.

To obtain GPM for other Water Temperature Drops,multiply basic GPM rating by applicable Factor.

To obtain Pressure Loss Feet of Water for other Tempera-ture Drops, multiply Basic Loss at 20° drop by Factor.

ENTERING WATER TEMPERATURE, °F

100110120130140150160170180190200210220230240250260270280290300

0.0000.0680.1370.20�0.2730.3�20.�100.�780.��70.61�0.68�0.7�20.8200.8890.9�71.02�1.09�1.1621.2301.3001.367

0.6830.7�90.83�0.9110.9871.0631.1391.21�1.2911.3671.��31.�191.�9�1.6701.7�61.8221.8981.97�2.0�02.1262.202

0.�180.�920.6660.7�00.81�0.8880.9621.0361.1101.18�1.2�81.3321.�061.�801.��1.6281.7021.7761.8�01.92�1.998

0.3610.�3�0.�060.�780.6�10.7230.79�0.8670.9�01.0121.08�1.1�71.2291.3011.3731.��61.�181.�901.6631.73�1.807

0.2120.2830.3�30.�2�0.�9�0.�6�0.6360.7060.7770.8�80.9180.9891.0601.1301.2011.2721.3�21.�131.�831.��1.62�

0.0690.1380.2070.2760.3��0.�1�0.�830.��20.6210.6900.7�90.8280.8970.9661.03�1.10�1.1731.2�21.3111.3801.��9

Table 12 – Hot Water Heating Capacity Conversion Factors

0 10 20 30 40 50 60 70 80 90

EnteringWater Temp.

(°F) 1000.7690.8�60.9231.0001.0771.1��1.2311.3081.38�1.�921.�391.61�1.9621.7691.8�61.9232.0002.0772.1��2.2312.308

0.�990.67�0.7�90.82�0.8990.97�1.0�91.12�1.1991.27�1.3�91.�2�1.�991.�731.6�91.7231.7981.8731.9�82.0232.098

0.�390.�120.�8�0.6�80.7310.80�0.8780.9�01.02�1.0971.1701.2�31.3121.3901.�631.�361.6091.6821.7��1.8291.902

0.2860.3�70.�290.�000.�710.6�30.71�0.7860.8�70.9291.0001.0711.1�31.2�11.2861.3�71.�291.�001.�711.6�31.71�

0.1�00.2100.2790.3�90.�190.�890.��90.6290.6990.7680.8380.9080.9781.0�81.1181.1881.2�71.3271.3971.�671.�37

USE FACTORS FROM THIS TABLE TO OBTAINAPPROXIMATE RESULTS 10

1.13

2.21

�.32

15

1.06

1.�0

1.8�

20

1.00

1.00

1.00

25

0.9�

0.76

0.61

30

0.90

0.61

0.�1

35

0.86

0.�0

0.30

40

0.82

0.�2

0.22

45

0.78

0.36

0.18

50

0.72

0.30

0.1�

55

0.69

0.26

0.12

60

0.67

0.23

0.11

Table 13. Correction Factors for Varying Water Temperature Drop (See Note)

Note:Water temperature drop correction factors valid only for standard 200°F entering water and 60°F air temperature conditions.

Entering Air Temperature, (°F)

Table 14. Ethylene Glycol Correction Factors

Note:For Propylene Glycol solution correction factor, multiply Ethylene Glycol correction factor by 0.9�.

ETHYLENE GLYCOL SOLUTION %SolutionTemperature (°F)

100150200

250

30%0.960.960.970.96

40%0.930.9�0.9�0.9�

50%0.890.900.920.92

60%0.8�0.870.880.89

70%0.810.830.8�0.86

20%0.990.990.990.98

80%0.760.780.810.82


Catalog 702 / of 36

Application Procedure

I. Capacity -atstandardconditions 2lbs.Steam,60ºEnteringAir(EATS). Table 4 (page 7)BtuS = 63,000 Btu/HR.

Capacity -atnon-standardconditions Table 15 (page 20)Heating Capacity Factor = 1.0610lbs.Steam,70ºEnteringAir(EATA). BtuA=BtuS×HeatingCapacityFactor=63,000×1.06=BtuA = 66,780 Btu/HR.

II. Final Air Temperature Table 4 (page 7) FATS = 112ºFAirTempRiseCalculations ATRA=(FTAS-EATS)×AirTempRiseFactor(Table 21-1.)=(112ºF-60ºF)×1.07=ATRA = 55.64ºF

FATACalculations FATA=(EATA+ATRA)=70ºF+55.64ºF=FATA = 125.64ºF

II. Final Air Temperature Table 4 (page 7) CFM = 1120FATACalculations

FATA= (BtuA)

+ EATA =66,780

+70ºF=55ºF+70ºF=FATA = 125ºF

1.085×CFM 1.085×1120 (Comparedto125.64ºFinMethodA)

III.Condensate -atstandardconditions Table 4 (page 7)Standard Conditions =66 LB./HR.

Condensate(A) Table 17 (page 21)Latent Heat of Steam = 952.5

Condensate= BtuA 66,780 LatentHeatofSteam= 952.5

= 70.11 LB./HR.

Condensate(B): BtuA (EquivalentDirect) 66,780240

=EDR Radiation=

240= 278.5

EDR 278.5Condensate =4

=4

= 69.56 LB./HR.

IV. Final Air Volume-atstandardconditions Table 4 (page 7)Final Air Temp. FATS = 112ºF, Nominal Cfm = 11202lbs.steam,60ºFEnteringAir(EATS)

Final AV = (460+FATS)×Cfm=(460+112) × 1120=1.08×1120=1210 Cfm530 530

V. Final Air Volume10lbs.steam,70ºFEnteringAir(EATA) Final AV = (460+FATA)×Cfm=(460+125.64)×1120=1.10×1120=1232 Cfm530 530

VI. Maximum Mounting Height Table 4 (page 7) Max. Mounting Height = 14 ft.Table 18 (page 21) Mounting Height Correction Factor = 0.94MMHA=MMHS×CorrectionFactor=14×0.94=MMHA = 13.16 ft.

Example 2: Steam Calculation, Horizontal UnitGiven Design Conditions:UnitHeaterModel:UHH-63SteamPressure:10lbs.EnteringAirTemperature(EATA):70ºF

Meth

od A

Meth

od B


Catalog 702 / of 36

Steam Calculation Formulas1. Table 15

Todeterminetheheatingcapacity(Btu/hr.)ofaunitheateratasteampressureand/orenteringairtemperatureotherthanstandardconditionsof2lb.Steamand60°Fenteringairtemperature.

Tofindactualunitheatercapacitywhenoperatingatnon-standard(actual)conditions:BtuA = BtuS × Heating Capacity Factor

Toselectaheatercapacitybasedonstandardcon-ditionstomeetaheatingcapacityatnon-standard(actual)conditions:BtuS = BtuA ÷ Heating Capacity Factor

2. Table 16 (page 21)Todeterminetheairtemperatureriseofaunitheateratasteampressureand/orenteringairtemperatureotherthanstandardconditionsof2lb.Steam,60°Fenteringairtemperature.

Tofindactualairtemperatureriseofunitheaterwhenoperatingatnon-standard(actual)conditions:ATRA = (FATS - EATS) × Air Temperature RiseFactor

Tofindactualfinalairtemperatureofunitheaterwhenoperatingatnon-standard(actual)conditions:FATA = EATA + ATRA

3. Table 18 (page 21)Todeterminehownon-standardsteampressures(otherthan2lb.)affectmountingheight.Max. Mounting HeightA = Max. MountingHeightS × Correction Factor

4. Table 17 (page 21)Todeterminetherateofcondensateproductionatsteampressuresotherthan2lb.Condensate Rate = BtuA ÷ Latent Heat of Steam

5. Btu ÷ 240 = EDR (Equivalent Direct Radiation)

6. EDR ÷ 4 = LBS./HR. Condensate

7. ATRA =BtuA(Cfm x 1.085)

TerminologyATRA = Airtemperatureriseatnon-standard(actual)

conditionsBtuA = CapacityatactualoperatingconditionsBtuS = Capacityatstandardconditions(2lb.Steam,

60°Fenteringairtemperature)fromTables4and5onpage7

EATA = Enteringairtemperatureatnon-standard(actual)conditions

EATS = Enteringairtemperatureatstandardconditions(60°F)

FATA = Finalairtemperatureatnon-standard(actual)conditions

FATS = FinalairtemperatureatstandardconditionsfromTables4and5onpage7

Max. Mounting HeightA = Maximummountingheightatactualconditions

Max. Mounting HeightS = Maximummountingheightatstandardconditions

-100102030�0�060708090100

STEAM PRESSURE (PSIG)0 2 5 10 15 20 30 40 50 60 70 75 80 90 100 125 150

Entering Air

Temp. (°F)1.��1.��1.371.271.191.111.030.960.880.810.7�0.67

1.�91.�01.�11.321.2�1.161.081.000.930.8�0.780.71

1.6�1.��1.�61.371.291.211.131.0�0.970.900.830.76

1.731.6�1.��1.�61.381.291.211.131.060.980.910.8�

1.801.711.611.�31.��1.3�1.281.191.121.0�0.970.90

1.861.771.681.�81.�01.�21.331.2�1.171.101.020.9�

1.971.871.781.681.601.�11.�31.3�1.271.191.121.0�

2.061.961.861.771.681.601.�11.�31.3�1.271.191.12

2.132.0�1.9�1.8�1.761.671.�81.�01.�21.3�1.261.19

2.202.092.001.901.811.731.6�1.�61.�71.391.311.2�

2.262.162.061.961.871.781.701.611.�31.��1.371.29

2.282.182.091.991.901.811.721.6�1.��1.�71.�01.32

2.312.212.112.021.931.8�1.7�1.661.�81.�01.�21.3�

2.362.262.162.061.971.881.791.711.621.��1.�61.38

2.�12.312.202.112.021.931.8�1.7�1.661.�81.�01.�2

2.�12.�12.312.212.112.021.931.8�1.761.681.�91.�1

2.602.�02.�02.302.202.112.021.931.8�1.761.671.�9

HORI

ZONT

AL D

ELIV

ERY

ModelUHH

Table 15. - Steam Heating Capacity Conversion Factors, Horizontal Delivery


Catalog 702 / of 36

-100102030�0�060708090100


Entering Air

Temp. (°F)1.331.281.2�1.171.121.071.010.960.900.8�0.780.72

1.381.331.271.221.171.111.061.000.9�0.880.830.76

1.�31.381.331.271.211.161.111.0�1.000.930.880.82

1.�01.��1.�01.3�1.291.2�1.191.131.071.020.9�0.90

1.�61.�11.�61.�21.361.101.2�1.191.1�1.081.020.97

1.611.�61.�21.�61.�11.361.301.2�1.191.1�1.081.02

1.701.6�1.601.��1.�11.�61.�01.3�1.291.2�1.181.12

1.781.731.681.621.�81.��1.�81.�31.381.321.261.21

1.8�1.791.7�1.691.6�1.601.��1.�01.��1.391.331.28

1.911.861.811.7�1.711.661.611.�61.�01.��1.�01.33

1.9�1.911.861.811.761.711.661.611.�61.�11.��1.39

1.971.931.891.8�1.791.7�1.691.6�1.�81.�31.�71.�2

2.001.9�1.911.861.821.761.721.661.611.�61.�91.��

2.0�2.001.9�1.901.861.811.7�1.701.6�1.601.��1.�9

2.082.0�1.991.9�1.891.8�1.791.7�1.691.6�1.�91.�3

2.172.132.092.0�1.991.9�1.891.8�1.791.7�1.681.63

2.2�2.212.172.122.072.031.981.931.871.831.771.71

HORI

ZONT

AL D

ELIV

ERY

ModelUHH

Steam ApplicationTable 16. - Air Temperature Rise Conversion Factors, Horizontal Delivery

970.3966.2962.�960.69�8.89��.69�2.�9�9.69�6.89��.29�1.7939.3936.993�.7932.�930.�928.�926.6

279.�281.928�.3286.7289.0291.3293.�29�.6297.7299.7301.7303.630�.�307.3309.1310.9312.631�.�

70727�767880828�868890929�9698

100103106

897.3896.089�.8893.�892.3891.1889.9888.8887.6886.�88�.�88�.3883.2882.1881.1880.0878.�876.9

3�3.63��.�3�7.23�8.93�0.73�2.�3�2.93��.03��.73�7.33�8.9360.�362.0363.�36�.9377.�387.9397.3

Table 17. – Properties of Steam

Temp (°F)

LatentHeat

(Btu/lb.)

GaugePressure

(PSIG)Temp. (°F)

LatentHeat

(Btu/lb.)

GaugePressure

(PSIG)Temp. (°F)

LatentHeat

(Btu/lb.)

GaugePressure

(PSIG)Temp. (°F)

Gauge Pressure

(PSIG)

LatentHeat

(Btu/lb.)

02��6810121�161820222�26283032

212.0218.�22�.�227.2229.823�.8239.�2�3.72�7.82�1.62��.32�8.8262.126�.3268.3271.327�.1276.8

3�3638�0�2��6�8�0�2��6�860626�6668

92�.7922.9921.1919.3917.691�.991�.3912.7911.2909.7908.2906.790�.3903.9902.�901.2899.9898.6

316.0317.7319.3320.9322.�323.932�.�326.9328.�329.8331.2332.�333.933�.2336.6337.9339.83�1.7

10911211�11812112�12�1271301331361391�21��1�017�20022�

87�.�873.9872.�871.0869.6868.2867.8866.986�.�86�.1862.9861.�860.38�9.08�6.98�6.8837.2828.�

Table 18. – Steam Unit Heater Mounting Height Correction Factors

Steam Pressure(PSIG)

Correction Factor

2

1.00

�

0.97

10

0.9�

1�

0.92

20

0.89

30

0.86

�0

0.8�

�0

0.82

60

0.80

70

0.79

80

0.77

90

0.76

100

0.7�

12�

0.7�

1�0

0.72

17�

0.71


Catalog 702 / of 36

Example 3: Hot Water Calculation, Vertical UnitWater Design Conditions:VerticalModelUDH-059GivenHotWaterDesignConditionsEnteringWaterTemperature:250ºFEnteringAirTemperature(EATA):70ºF


I. Capacity - atstandardconditions Table 8 (page 10) = 44,300 200ºFEnteringWaterTemperature, BtuS = 44, 300 Btu/HR.60ºFEnteringAir,20ºFWaterTemperatureDrop

Capacity - atnon-standardconditions Table 12 (page 18) Water Capacity Conversion = 1.272250ºFEnteringWaterTemperature BtuA=BtuS×HeatingCapacityFactor70ºFEnteringAir(EATA) BtuA=44,300×1.272=Btu/HR.=56,350

II. A. Water Flow Rate (GPM) Table 8 (page 10)GPM = 4.5

B. GPM - atother TD’s Table 12 (page 18) ForGPMCorrectionFactor(Not20ºFTD) ( Table8) × ( Table12)Standard Correction

III. Final Air Temperature Table 8 (page 10)GPM = 4.5 orCalculatedGPM(seeprocedureII-B.)[(460+EATA)

=70+[ (460+70)]FATA =EATA+ (576×CFMS)−1] (576×1150)−1=70+ 530 =70+49.26=FATA = 119.26ºF

BtuA 56350 (11.76-1.0)

IV. Water Temperature Drop WTDA= BtuA 56,350 (500×GPMA) = 500×4.5

= 25.0ºF

V. Maximum Mounting Height Table 8 (page 10) StandardMountingHeight=14 ft.Table 11 (page 16) Mounting Height Correction Factor =0.86MMHA=MMHS×CorrectionFactor=14×0.86=MMHA = 12 ft.

Example 4: Steam Calculation, Vertical Unit Given Design Conditions:VerticalAirDeliveryRequestedHeatingLoad:100,000Btu/HREnteringAirTemperature(EATA):50ºFSteamPressure:2lbs.


I. Unit Selection Table 19 (page 23) Heating Capacity Factor = 1.07

BtuS =BtuA

= 100,000

HeatingCapacityFactor 1.07= BtuS = 93,458

Reference Table 8 (page 10) UDH-95 will meet the heating requirements with rated capacity of 95,000 Btu/HR. at standard conditions (BtuS)

II. Actual Heating Capacity BtuA=BtuS×HeatingCapacityFactor=95,000×1.07= 101,650 BtuA


Catalog 702 / of 36


Entering Air

Temp. (°F)ModelUDH

Model UDH Steam Application Table 19. Steam Heating Capacity Conversion Factors, Vertical Delivery

VERT

ICAL

DEL

IVER

Y

-100102030�0�060708090100

1.�91.�11.331.2�1.181.111.030.960.900.830.760.69

1.�21.��1.371.291.221.1�1.071.000.930.860.800.73

1.�81.�01.�21.3�1.271.201.121.0�0.980.910.8�0.78

1.6�1.�71.�91.�11.3�1.271.191.121.0�0.980.910.8�

1.701.621.��1.�71.�01.321.2�1.181.111.0�0.970.90

1.7�1.671.601.�21.��1.371.301.231.161.091.020.96

1.831.7�1.681.611.�31.�61.391.321.2�1.181.111.0�

1.901.821.7�1.681.611.�31.�61.391.321.2�1.181.11

1.961.871.811.7�1.671.�91.�21.��1.381.311.2�1.17

2.021.9�1.871.791.721.6�1.�71.�01.�31.361.291.22

2.071.991.921.8�1.761.691.621.��1.�71.�01.331.27

2.102.021.9�1.861.791.711.6�1.�71.�91.�21.361.29

2.112.0�1.961.881.801.731.661.�91.�11.��1.381.31

2.1�2.082.001.921.8�1.771.691.621.��1.�81.�11.3�

2.192.112.031.9�1.881.801.731.661.�91.�21.��1.38

2.272.192.111.991.911.881.811.7�1.671.601.�31.�6

2.3�2.262.182.102.031.9�1.881.811.7�1.671.601.�3


Entering Air

Temp. (°F)ModelUDH

Table 20. Air Temperature Rise Conversion Factors, Vertical Delivery

VERT

ICAL

DEL

IVER

Y

-100102030�0�060708090100

1.361.311.2�1.191.131.081.020.960.900.8�0.780.72

1.�11.3�1.291.2�1.181.121.061.000.9�0.880.820.76

1.�61.�01.3�1.291.231.171.121.061.000.9�0.880.82

1.��1.�81.�31.371.311.2�1.201.1�1.081.020.960.89

1.611.��1.�91.��1.381.321.261.201.1�1.091.020.97

1.671.611.��1.�01.��1.381.321.261.201.1�1.081.02

1.771.711.6�1.601.��1.�81.�21.361.301.2�1.181.12

1.8�1.791.7�1.681.621.�61.�11.��1.391.331.271.21

1.921.861.811.7�1.691.6�1.�81.�21.�61.�01.3�1.28

1.991.931.881.821.761.701.6�1.�81.�31.�71.�11.3�

2.0�1.991.9�1.881.821.761.701.6�1.�91.�31.�71.�1

2.082.021.961.911.8�1.791.731.671.621.�61.�01.�3

2.102.0�1.991.931.871.811.7�1.701.6�1.�81.�21.�6

2.1�2.092.0�2.001.921.861.801.7�1.691.631.�71.�1

2.192.1�2.082.021.971.911.8�1.791.731.671.611.��

2.292.2�2.182.122.072.011.9�1.891.831.771.711.6�

2.392.332.272.222.162.102.0�1.991.931.871.811.7�



N/AN/AN/AN/A

1.�/0.71.�/0.72.2/1.12.2/1.12.2/1.12.2/1.12.2/1.12.2/1.12.2/1.1

1.�/0.71.�/0.71.�/0.71.�/0.72.2/1.12.2/1.12.2/1.12.2/1.1�.2/2.1�.2/2.1�.2/2.1�.2/2.1�.0/2.��.0/2.�

0.700.700.720.721.301.301.�81.�82.6�2.7�3.60�.68�.68

1.301.302.202.202.7�2.7��.68�.68�.8��.8�8.9�———

Table 21. Motor Data

�.8/2.3-2.��.8/2.3-2.��.8/2.3-2.��.8/2.3-2.��.8/2.3-2.��.8/2.3-2.�6.8/3.1-3.�6.8/3.1-3.�6.8/3.1-3.�6.8/3.1-3.�7.8/3.6-3.99.6/�.7-�.89.6/�.7-�.8

�.8/2.3-2.��.8/2.3-2.��.8/2.3-2.��.8/2.3-2.�6.6/3.1-3.36.6/3.1-3.39.6/�.7-�.89.6/�.7-�.89.6/�.7-�.89.6/�.7-�.8

————


Motor HPModel TypeA

AmpsG

AmpsI

AmpsV

AmpsUHH-18UHH-24UHH-33UHH-47UHH-63UHH-86




1/301/301/1�1/1�1/101/101/81/81/�1/�1/31/21/2

1/101/101/61/61/�1/�1/21/2�/8�/811

1-1/21-1/2

0.220.220.�00.�00.�90.�90.800.801.�01.�02.002.202.20

0.�90.�91.101.101.�01.�02.202.203.�03.�0�.�0———



Overload

Motor Data & Power CodesHo

rizon

tal M

odel

UHH

Verti

cal M

odel

UDH







Performance Curves – Horizontal Model UHH200ºF Entering Water Temperature / 60ºF Entering Air Temperature

Mode

l UHH

-18,

UHH-

24, U

HH 33

, UHH

-47

Mode

l UHH

-63,

UHH-

85, U

HH 10

8, UH

H-12

1

■ Indicates point of 40°F water temperature drop ● Indicates point of 20°F water temperature drop ▲ Indicates point of 10°F water temperature drop

Water Flow (GPM)

Water Flow (GPM)

Pres

sure

Dro

p(F

t. of

H2O)

Btu/

Hr. x

1000

Pres

sure

Dro

p(F

t. of

H2O)

Btu/

Hr. x

1000

Catalog 702 / of 36

Water Flow (GPM)

Water Flow (GPM)

Pres

sure

Dro

p(F

t. of

H2O)

Btu/

Hr. x

1000

Pres

sure

Dro

p(F

t. of

H2O)

Btu/

Hr. x

1000

Performance Curves – Horizontal Model UHH200ºF Entering Water Temperature / 60ºF Entering Air Temperature

Mode

l UHH

-165

, UHH

-193

, UHH

33, U

HH-2

58Mo

del U

HH-2

90, U

HH-3

40


Catalog 702 / of 36

Performance Curves – Horizontal Model UDH200ºF Entering Water Temperature / 60ºF Entering Air Temperature

Mode

l UDH

-42,

UDH-

59, U

DH-7

8, UD

H-95

Mode

l UDH

-139

, UHH

-161

, UDH

-193


Water Flow (GPM)

Water Flow (GPM)

Pres

sure

Dro

p(F

t. of

H2O)

Btu/

Hr. x

1000

Pres

sure

Dro

p(F

t. of

H2O)

Btu/

Hr. x

1000

Catalog 702 / of 36

Performance Curves – Horizontal Model UDH200ºF Entering Water Temperature / 60ºF Entering Air Temperature

Mode

l UDH

-212

, UDH

-247

, UDH

-279

Mode

l UDH

-333

, UHH

-385

, UDH

-500

, UDH

-610


Water Flow (GPM)

Water Flow (GPM)

Pres

sure

Dro

p(F

t. of

H2O)

Btu/

Hr. x

1000

Pres

sure

Dro

p(F

t. of

H2O)

Btu/

Hr. x

1000

Catalog 702 / of 36

Factory Mounted Option Description

Disconnect UnitMountedtoggleswitchforon/offcontroloffanoperation,onlyforPower Code A.

Speed Controller UnitMountedspeedcontrollerallowsinfiniteadjustmentoffanspeed,(Variable speed) controllingairflowvolume,availableonlywithPower Code A.

UnitMountedThermostatturnsfanonafterairtemperaturefallsbelowsetpoint.Unit Mounted Thermostat LineVoltageHeatingThermostatRange50˚Fto90˚F25A@120V/240V,only

forPower Codes A and G.

UnitMountedtoggleswitchstarterwiththermaloverloadprotection foron/offManual Starter fancontrol.Startercomeswithafusedoverloadthatprotectsunitupto125%

load,onlyforPower Codes A and G.

Diffuser Blades Diffuserbladesareattachedtolouvertodeflectairflowindirectionsleftorrightoftheheater.

Note: Contact factory for options requiring different voltages than listed above.

Field Installed Options Description

Thermostat LineVoltageHeatingThermostatRange50˚Fto90˚F25A@120V/240V,onlyforPower Codes A and G.

Explosion-Resistant Thermostat 46˚Fto84˚Frange10.2A@115V,6.5A@230V.

Aquastat SurfaceMountedAquastatRange100˚Fto240˚F.Itwilldelaythemotoruntilapredeterminedwatertemperatureisreached.

Speed Controller WallMountedspeedcontrollerallowsremoteinfiniteadjustmentoffanspeed,(Variable speed) controllingairflowvolume,availableonlywithPower Code A.

Thermostat Guard Clearplasticlockingguardwithlockandkeystodeterunwantedadjustmentofsettemperature.

Pipe Hanger Kit Allowsunittobesuspendedfromceilingbythreadedpipeinsteadofthreadedrod.

WallMountedtoggleswitchstarterwiththermaloverloadprotectionforremoteManual Starter on/offcontroloffan.Startercomeswithafusedoverloadthatprotectsunitupto

125%load,onlyforPower Codes A and G.

Disconnect WallMounteddisconnectallowson/offcontroloffanoperation,onlyforPower Code A.

Options/Accessories

Unit Heater Options

Notes:1. Contact factory for options requiring different voltages than listed above.2. See Control Sequences on page 1�.

Catalog 702 / of 36

Options/Accessories

Cone-Jet

H

S

Truncone

H

S

Anemostat

H

S

No Deflector

H

S

Louvers

H

S

Vertical Air Outlet – Model UDH

Field Installed Options for Vertical Models Description

Thecone-jetallowstheunit’sdischargedairtobeadjustedfromadirecthighCone-Jet velocitystreamtoabroadenedstreamthatcancoveralargerarea.Seepage31for

additionalinformation.

Truncone Thetrunconeallowsforabroadairstreamcoveringalargerareathanpossiblewithacone-jet.Seepage31foradditionalinformation.

One-Way Louver Theone-waylouverallowsforaonedirectionaldischargeofair.Seepage31foradditionalinformation.

Two-Way Louver Thetwo-waylouverallowsforabi-directionaldischargeofair.Seepage31foradditionalinformation.

3-Cone Anemostat The3-coneanemostatallowsforanevenairstreamcoveringalargerareathanpossiblewiththetruncone.Seetables22and23onpage31foradditionalinformation.

4-Cone Anemostat The4-coneanemostatallowsforanevenairstreamcoveringalargerareathanpossiblewiththe3-coneanemostat.Seepage31foradditionalinformation.

Catalog 702 / of 36

11131�161821232�263030303736

192�2626323�3939�6�3�3�36�63

111�1�1�182022222630303037�1

2228303036�0��26060607�72

2228303036�0��26060607�—

283�3030��0��6�7�7�7�93—

2�272931333�39�1

16-1/218-1/220-1/222-1/22�-1/226-1/230-1/232-1/2

Model Size

16-1/218-1/220-1/222-1/22�-1/226-1/230-1/232-1/2

101012121�1�1818

2�2�292933333739

6-1/26-1/2

8899

1010

12-1/212-1/2

1�1�1�1�1616

22-1/22�-1/226-1/228-1/230-1/232-1/236-1/238-1/2

1�1�

1�-1/21�-1/216-1/216-1/217-1/217-1/2

UDH-42–59UDH-78–95

UDH-139–161UDH-193–212UDH-247–279UDH-333–385

UDH-500UDH-610

6-1/26-1/2

88991010

Cone Jet Truncone Louvers 3 - Cone Anemostat 4 - Cone Anemostat

L T M X P Z N AA N EE

* All dimensions in inches.

Table 23 - Vertical Air Outlet Accessory Dimensions

Table 22 – Vertical Air Outlet Accessory Maximum Height and Spread1,2,3

ModelSize



Standard

Truncone One-Way Louvers 3-Cone Anemostat

S H S H S H S H S HH

Cone-Jet

Standard Standard

Two-Way Louvers

Standard

4-Cone Anemostat

Standard Standard

S1�1819212�2831333�373736��3

891111131�1616171817171919

1316171721232�2�303�3�3��2�1

8101111131�1�1�18212121262�

891111131�16161718171719—

88889

1012121313131313—

Data shown for standard 2 lb. Steam. 60°F entering air temperature conditions. For louvers or cone-jet, data shown for deflectors in fully-opened position. For mounting height/spread at steam pressure other than 2 lb., multiply the value by the correction factor in Table 18 on page 21.For mounting height and spread for hot water, multiply the value above by 1.06 to approximate the mounting height and spread at 200°F entering water temperature. For entering water temperature other than 200°F, multiply the value above by 1.06 and then multiply the correction factor in Table 18 on page 21.All dimensions in feet.

1

2

3

Cone-Jet Truncone Louvers 3-Cone Anemostat 4-Cone Anemostat

Options/Accessories

Catalog 702 / of 36

Horizontal Unit Heater Connected to Overhead Hot Water Mains Vertical Unit Heater Connected to Lower Hot Water Mains

Piping For Unit HeatersSuggested Piping Arrangements – Hot Water SystemsSuggestedtypicalpipingarrangementsshouldbeverifiedbasedonthebestindustrypracticesperASHRAEandASMEGuidelineswhenselectedorapprovedbyaqualifiedengineer.Inaddition,pipingspecialtymanufacturer’sinstallation,operatingandmaintenanceliteratureshouldbereferenced.(SeeIM907).

Horizontal Unit Heater Side Connection for High Pressure Steam Horizontal Unit Heater Side Connection for Low Pressure Steam Open Gravity or Vacuum Return Steam

Steam Systems (UHH-18 through 86)

Horizontal Unit Heater Top/Bottom Connection for High Pressure Steam Horizontal Unit Heater Top/Bottom Connection for Low Pressure Steam Open Gravity or Vacuum Return Steam

Steam Systems (UHH-108 through 340)

Catalog 702 / of 36

Horizontal Air Delivery Model UHHGeneralContractorsshallfurnishandinstallDaikinModelUHHHorizontalUnitHeatersasindicatedorscheduledontheplans.Unitstobeinstalledperjobspecificationsinaneat,orderlymannerperindustrystandardsandthemanufacturer’sinstallationinstructions.MaterialstobeassembledinconformancewithISO-9001:2000Standards.

CasingCasingsonallhorizontalunitsare18-gaugesteelandconsistoftop/backandsidehalves.BothhalvesarejoinedontopandbackwithPhillipsheadscrews.Topcasingisfurnishedwiththreadedhangerconnectionsforsuspensionofunit.Fanventuriisdie-formedonbackhalf.Allmodelsshallbedegreasedandchemicallyphosphatizedpriortotheapplicationofastandardtexturedgrayepoxypowdercoating.

CoilsHeatingelementisdesignedforeithertwo-pipesteamorhotwaterheatingsystem.Coilsaremadeupof1/2"nominaldiameterseamlesscoppertubingandaluminumfins(12finsperinch)whicharedie-formedwithathicknessofnolessthan.010inches.Thefinshaveintegralcollars,whichprovidemaximumheattransferbetweenthetubesandfin.Thetubesaremechanicallybondedtothefinstoensurepermanentcontact.Finsarecontinuousacrosswidthanddepthofcoilandareverticallyorientedtoresistcollectionofdirtandforeignparticles.Coilsareofnon-ferrousconstructionandsteelheaderdesignforlowerpressuredrops.HeadershaveexternalthreadedNPTconnectionsforeaseofinstallation.UHH-18toUHH-86have0.020"tubethickness.ModelsUHH-108toUHH-340have0.028"tubethickness.Coilsaretestedat275psigairunderwater.Coilsaresuitableforoperatingupto150psigsteamor220psigwaterand375ºF.CoilshaveCRNpressurevesselcertificationforOntarioandQuebecprovinces.

FansMotor/fancombinationiscarefullychosentominimizenoisewhilemaximizingairdelivery.Fanshavenon-conduct-ingaluminumblades,withasteelhub.Eachfanbladeisbalancedanddesignedspecificallyfortheunitofwhichitisinstalledwithin.MotoronUHHmodelsareattachedtoastandard(CSA,OSHA)finger-prooffanguard,constructedofsteelrod.AirdiffusiononUHHmodelsisaccomplishedthroughhorizontallouvers.

MotorsStandardmotorsare115/60/1,totallyenclosed;permanentsplitcapacitorwiththermaloverloadprotectionandULCertification.Motorsaredesignedtohandleupto104ºFmaximumconstantambienttemperature.Allmotorsaredesignedforhorizontalmounting,permanentlylubricatedforextendedreliablemotorlife.Explosion-proofand3-phasemotorsareavailableforspecialneedsapplications.Explosion-proofratingsperNationalElectricCodeandCanadianStandardAssociation(CSA)apply.

LouversUnitstohaveadjustablehorizontallouvers,18-gaugesteel,colormatchedwiththeunitcasing.Optionalverticallouversareavailableforlateralairflowdeflection.

Mounting HardwareHeavy-dutythreadedhardwareallowsunittomountedwiththreadedrod.Optionalpipehangerkitsavailableformountingunitwiththreadedpipe.

Guide Specifications


Vertical Air Delivery Model UDHGeneralContractorshallfurnishandinstallDaikinModelUDHVerticalUnitHeatersasindicatedorscheduledontheplans.Unitstobeinstalledperjobspecificationsperindustrystandardsandthemanufacturer’sinstallationinstructions.MaterialstobeassembledinconformancewithISO-9001:2000Standards.

CasingCasingsareformedfromrugged16-gaugesteel.Casingonallverticalunitsaretopandbottompiecesjoinedbycornersandadditionalhardware.Topcasingisfurnishedwiththreadedhangerconnectionsforsuspensionofunit.Die-formedventurioutletdrawsairthroughunitformaximumairflow.Allmodelsshallbedegreasedandchemicallyphosphatizedpriortotheapplicationofastandardtexturedgrayepoxypowdercoating.

CoilsHeatingelementisdesignedforeithertwo-pipesteamorhotwaterheatingsystem.Coilsaremadeupof1/2"nominaldiameterseamlesscoppertubingandaluminumfins(12finsperinch)whicharedie-formedwithathicknessofnolessthan.010inches.Thefinshaveintegralcollars,whichprovidemaximumheattransferbetweenthetubesandfin.Thetubesaremechanicallybondedtothefinstoensurepermanentcontact.Finsarecontinuousacrosswidthanddepthofcoilandareverticallyorientedtoresistcollectionofdirtandforeignparticles.Coilsareofnon-ferrousconstructionwithasteelheaderforlowerpressuredrops.AllUDHunitshavesteelheadertubes.HeadershaveexternalthreadedNPTconnections.Allmodelhave0.028"tubethickness.Coilsaretestedat275psigairunderwater.Coilsaresuitableforoperatingupto150psigsteamor220psigwaterand375°F.CoilshaveCRNpressurevesselcertificationforOntarioandQuebecprovinces.

FansTohavenon-conductingaluminumblades,withasteelhub.Eachfanbladeisbalancedanddesignedspecificallyfortheunitofwhichitisinstalledwithin.Fansdesignedtomoveairefficientlyandquietlywithminimumpowerrequirements.AllUDHmodelshaveaCSAandOSHAfinger-prooffanguardovertheairoutletopening.

MotorsStandardmotorsare115/60/1,totallyenclosed;permanentsplitcapacitorwiththermaloverloadprotectionandULCertification.Motorsaredesignedtohandleupto104°Fmaximumconstantambienttemperature.Allmotorsaredesignedforverticalmounting,permanentlylubricatedforextendedreliablemotorlife.Explosion-proofand3-phasemotorsareavailableforspecialneedsapplications.NationalElectricCodeandCanadianStandardAssociation(CSA)apply.

Junction BoxAllunitwiringiscontainedinanelectricaljunctionboxthatismountedtotheunitheatercasing.

Air DiffusionMultiplearrangementsavailableforunlimitedairdiffusionpatterns.Accessoriesarefinishedwithaepoxy-basedpow-dercoatingtomatchunit.

LouversUnitstohaveadjustablehorizontallouvers,18-gaugesteel,colormatchedwiththeunitcasing.Optionalverticallouversareavailableforlateralairflowdeflection.

Mounting HardwareHeavy-dutythreadedhardwareallowsunittomountedwiththreadedrod.Optionalpipehangerkitsavailableformount-ingunitwiththreadedpipe.

Guide Specifications


Dimension Multiply By To obtainft 0.3048 mm 3.28 ft

Length in 2.54 cmin 25.4 mmcm 0.3937 inTon 12000 Btu/hrTon 3.517 kWkW 0.2843 Ton

Heat Btu/hr 0.2931 WW 3.413 Btu/hrkW 3413 Btu/hrhp 2545 Btu/hr

hp 0.7457 kWPower kW 1.341 hpCFM 0.000472 m3/sm3/s 2118.9 CFM

CFM(ft3/min) 0.47195 L/s GPM(gal/min) 0.0631 L/sVolume U.S.gal 3.785 L

L 0.264 U.S.galL/s 2.119 CFML/s 15.85 GPMft/s 0.3048 m/s

Velocity ft/min 0.00508 m/sm/s 196.85 ft/mininWG 0.2491 kPainWG 0.03602 Psi

Pascals 0.00403 inWGPressure kPascals 0.145 PsiPsi 27.761 inWGPsi 6.895 kPascals

Weight lbs 0.4536 kg

Metric & English Conversion

HVAC Conversion Factors (English Units & S.I. Metric)Symbol DefinitionBtu BritishThermalUnitsC Celcius(centigrade)CFM CubicFeetperMinutecm CentimetersF Fahrenheitft Feethp Horsepowerhr Hoursin Incheskg KilogramskW KilowattsL Literslb Poundsm Metersmm Millimetersmin MinutesPa Pascalspsi PoundsperSquareInchs SecondsTon TonsRefrigerationW WattsWG WaterGauge

ºF = 9/5 C + 32 ºC = 5/9 (F - 32)

©2013 Daikin Applied • www.DaikinApplied.com • 800-�32-13�2 Catalog 702 / of 36 (10/13)

DaikinTrainingandDevelopmentNow that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on training, or call ��0-2�8-96�6 and ask for the Training Department.

WarrantyAll Daikin equipment is sold pursuant to its standard terms and conditions of sale, including Limited Product Warranty. Consult your local Daikin representative for warranty details. Refer to Form 933-430285Y. To find your local Daikin representative, go to www.DaikinApplied.com.

This document contains the most current product information as of this printing. For the most up-to-date product information, please go towww.DaikinApplied.com.

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