ceilair engineering manual

Air Technology Systems, Inc.

CEILAiR


Ceiling MountedFull line of DX & CW Systems

Precision Air Conditioning1 to 10 Tons(60 Hz Data)

Engineering Manual


Air Technology Systems, Inc.1-1

COMFORT ConferenceRooms GeneralOfficeSpaces ModularOffices

CRITICAL / PRECISION TelecommunicationsRooms TelephoneSwitch-GearRooms Computer/LANRooms Copier/FaxRooms ATMBankCenters ElevatorEquipmentRooms CATSCAN/MRIFacilities HospitalOperating&IsolationRooms CleanRooms Laboratories

PERFECT FOR TENANT RENOVATIONS!

Stulz Air Technology Systems, Inc.

SATS is dedicated to providing innovative solu-tions for critical temperature and humidity control needs. SATS designs and manufactures specialized environmental control equipment for commercial, industrial and custom military applications. SATS serves a diverse marketplace - including telecom-munications, information technology, medical, financial, educational, industrial process and gov-ernment contracts - utilizing world-class island manufacturing processes in a modern, 150,000 ft2 facility. The addition of SATS to the STULZ family of companies solidifies STULZ as a global leader in the precision air conditioning marketplace. SATS combines a global network of sales and service companies with an extensive factory engineering staff and highly flexible manufacturing resources dedicated to providing world-class quality, innova-tion and customer service.

ISO-9001:2001Quality RegisteredStulz-ATS is committed to satisfying customer expectations by meeting and exceeding require-ments. Our Quality Policy ensures that every Employee is committed to Customer Satisfaction, Teamwork and utilizing Continuous Process Im-provement methods in order to deliver an excep-tional product. We will continually measure our performance to improve the effectiveness of our quality management system

Precision A/C ApplicationsStulz-ATS is dedicated to the manufacturing of supplemental and precision air conditioning prod-ucts. With an extensive installation base, SATS has earned a solid reputation as a quality supplier and leader in its field.

CeilAiR ceiling mounted air conditioning units provide temperature and/or humidity control for those hot spot areas in the building which exceed the central system capacity. They are an economical solu-tion to such demands which may, in fact, be temporary until the next offices are carved out of an existing plant area, another laboratory added to a school or new medical equipment installed at a hospital. No floor space is required by the CeilAiR ceiling mounted units. The units are designed with a wide range of options to handle both comfort and precision cooling applica-tions. Typical applications include:


SECTION - 5

ELECTRICAL DATA: (FLA / MCA / MFS)

ElectricalDataIndex............................................................ 5-1

DX - Compressorized Systems:

AirCooled,Self-ContainedSystems..................................... 5-2

AirCooled,SplitSystems.................................................. 5-2/4

WaterCooledSystems...................................................... 5-2/4

GlycolCooledSystems..................................................... 5-2/4

DX - Air Handling & Remote Condensing Units:

DX-AirHandlingUnits.................................................... 5-5/6

Free-Cooling & Alternate Water Source:

DXwithFree-Cooling....................................................... 5-7/8

DXwithAlternateWaterSource....................................... 5-7/8

Chilled Water Air Handling Systems:

ChilledWaterSystems......................................................... 5-9

SECTION - 6

DIMENSIONAL / INSTALLATION DRAWINGS:

DimensionalDrawing"QuickFind"Index............................ 6-1

PhysicalData-UnitWeights(lbs)......................................... 6-2

ConnectionSizes-DXRefrigerant....................................... 6-3

AirCooledSystems.......................................................... 6-4/9

Water/GlycolCooledSystems..................................... 6-10/13

ChilledWaterSystems.................................................. 6-14/15

1-2

SECTION - 1

IntroductiontoStulz-ATS..................................................... 1-1

TableofContents................................................................ 1-2

SECTION - 2

CeilAiR SYSTEMS:

OutstandingAdvantages..................................................... 2-1

UserOrientedFeatures&Options........................................ 2-2

AvailableConfigurations.................................................. 2-3/4

MODEL NOMENCLATURE:

NomenclatureChart............................................................ 2-5

ModelNomenclatureSpecifications..................................... 2-6

SECTION - 3

GUIDE SPECIFICATIONS:

StandardFeaturesIndex...................................................... 3-1

StandardGuideSpecifications.......................................... 3-2/4

OptionalFeaturesIndex....................................................... 3-5

OptionalFeaturesGuideSpecifications........................... 3-6/14

SECTION - 4

PERFORMANCE / CAPACITY SPECIFICATIONS:

PerformanceDataIndex...................................................... 4-1

DX-AirCooledSystems................................................... 4-2/6

DX-WaterCooledSystems.............................................. 4-7/8

DX-GlycolCooledSystems............................................ 4-9/10

ChilledWaterSystems.................................................. 4-11/16

Free-Cooling&AlternateWaterSourceSystems........... 4-17/28

Table of Contents

Table of Contents



CeilAiR Systems

2-1

CeilAiRceilingA/C'saredesignedastheultimatespacesaver.Theyeasilymountinastandard2'x4'gridofadroppedceilingple-numandareavailablewithhighstaticblow-ers(upto2.0"e.s.p.available)forconnectiontoceilingplenumducts.CeilAiRunitsarees-peciallyusefulwherethereisnofloororwallspaceavailableforcoolingunitsorwhereaestheticsdemandout-of-sightinstallation.

{

CeilAiR Systems Offer Outstanding Advantages

FlexibilityAwidevarietyoftypesareavailabletomeetyouruniquerequirements.

DX-AirCooled DX-WaterCooled DX-GlycolCooled(w/RemoteDrycoolers& PumpPackages DX-AirHandlingUnits ChilledWaterAirHandlingUnits

Versatility SpotCooling&Ductedsystems Self-Contained&Splitsystems

Space Saving DesignCompact,in-the-ceilingdesignsavesvaluablefloorspace.

Wide Size Range 1to10tonscapacityinelevenincrementalsizesmeetsanysupplementalcoolingrequirement.

Non-Proprietary PartsAllCeilAiRsystemsincorporatenon-proprietarycompo-nentswherepossible.MostmajorHVAC,refrigerationandelectricaldistributorsstockanexactmodelcrossreferenceoranalternatetomostfactoryprovidedcomponents.

Microprocessor ControlsPrecisiontemperatureand/orhumiditycontrolwithunri-valed,user-friendlycontrols,offerawiderangeoffunc-tionsandalarms.

A-Tech-1.1/.2 C-Tech-10 A-Tech-20

Complete Temperature & Humidity Control SteamCanisterHumidification(Optional) DehumidificationMode(Optional)with -ElectricReheat/Heat -HotGasReheat(Energy$aver) -HotWater&SteamReheat/Heat

Capacity Modulation Options Single&DualCompressorSystems HotGasBypassSystems MultistageReheat/Heat

Code Conformance

Listing E112043

R

NRTL LISTED Complies With

CSA C22.2 No. 236Heating & Cooling Equipment

UL 1995C

- NYCMEAApproved(MEA-163-88-E)- ChicagoCodeApproved- MET-CrecognizedbyStandardsCouncilofCanada


User Oriented Features & Options

2-2

Scroll CompressorsCeilAiRDXairconditionersincorpo-rateScrollCompressorTechnology(unlessspecifiedotherwise).ScrollCompressorsprovidehigheref-ficiency,higherreliabilityandlowersoundpowerthanothercompressortechnologies.

Year Round OperationOptionofferingsavailablewithCeil-AiRairconditionersallowforyear-round,24/7continuouson-linesystemoperationinanyenvironmentintheworld:

Low Ambient Control (DX - Air Cooled) 0FFanCycling/FanSpeed -20FVariableFanSpeed -30FFloodedHeadPressure

Quiet OperationLowsoundpowerScrollcompressorscoupledwithlowRPMblowers,acousticallylinedcabinetsandlowvelocitygrillesprovidetheoptimuminquietoperation.

Fast Delivery Stock unitscompleteandreadyforshipment "Rapid-Fire",5dayShipProgram

Warranty - 2YearPartsStandard - Optional5YearCompressor

Spot Cooler

Ducted

Other Available Options - CondensatePumps - ElectricalServiceSwitches - Firestats - SmokeDetectors - WaterLeakDetectors - SpecialHighEfficiencyFiltration (2"&4"Filtersup-to60%DustSpot) - HighPressureDX-Water/GlycolCooled CondenserRegulatingValves - Free-Cooling&AlternateWaterSourceUnits - Many more options available (see page 3-5)!

Variety of Air Patterns

CeilAiR Ceiling AC Systems(ModelOHS-()-ASShown)

Selected Standard Features: Acoustical / Thermal Insulation Aluminum Fin / Copper Tube Coils Thermal Expansion Valve Refrigerant Sight Glass Filter / Drier Strainer Liquid Refrigerant Reclaim Valves Insulated SS or Polymer Drain Pans Condensate Overflow Safety Switch High / Low Pressure Switches

Light weight ALL ALUMINUM cabinet and chassis prevents rust & corrosion

Straight-Thru

EVAPORATORAIR OUT

EVAPORATORAIR IN

EVAPORATORAIR OUT

EVAPORATORAIR IN

90 / Right-Angle

EVAPORATORAIR IN

EVAPORATORAIR OUT



Space Saving Configuration Choices

2-3

OHS-012/040-AS(Self-Contained,DuctedEvaporator)

OHS-012/040-AS(Self-Contained,"Ductless"SpotCooler)

SELF-CONTAINED AIR COOLED - withINTEGRALAirCooledCondenserAIR COOLED SYSTEMS

{{

OHS-012/040-AR(SplitEvaporator,"Ductless"SpotCooler)

{

{{

{ {

{

SATSRemoteOutdoorPropellerCondenser

SATSRemoteIndoorCentrifugalCondenser

SPLIT AIR COOLED - withREMOTEOUTDOORorINDOORAirCooledCondenser (compressorlocatedwithEvaporatorSection) SATSRemoteOutdoor

PropellerCondenser




OHS-012/032-AR(SplitEvaporator,DuctedEvaporator)


OHS-012/040-HAR & OHS-048/060-AR(SingleCompressor-SplitEvaporator)

(DuctedOnly)


OHS-040/120-(D)AR(DualCompressors-SplitEvaporator)

(DuctedOnly)

OHS-012/040-AHU(Split,DX-AirHandlingUnit)

("Ductless"SpotCooler)

SATSOutdoorPropellerRemoteCondensingUnit

SATSIndoorCentrifugalRemoteCondensingUnit

SPLIT AIR COOLED - AIRHANDLINGUNITw/INDOORorOUTDOORREMOTECONDENSINGUNIT (compressorlocatedwithCondensingSection)

OHS-012/040-AHU & HAHU

(Split,DX-AirHandlingUnit)(DuctedEvaporator)




OHS-048/120-DAHU(DualCircuit,Split,DX-AirHandlingUnit)

(DuctedOnly)

OHS-048/060-AHU(Split,DX-AirHandlingUnit)

(DuctedOnly)




Please refer to the SATS Heat Rejection

Engineering Manual for specification and per-

formance data on SATS Remote Condensers &

Condensing Units


More Space Saving Configuration Choices

2-4

WATER COOLED SYSTEMSSELF-CONTAINED WATER COOLED SYSTEMS

OHS-012/040-W(Self-Contained,"Ductless"SpotCooler)

OHS-012/032-W(Self-Contained,DuctedEvaporator)

GLYCOL COOLED SYSTEMSSELF-CONTAINED GLYCOL COOLED SYSTEMS

CHILLED WATER SYSTEMS

OHS-048/120-DW(DualCompressors,Self-Contained,DuctedOnly)

OHS-012/040-HW & OHS-048/060-W(SingleCompressor,Self-Contained,DuctedOnly)

OHS-012/040-G with SATS DRYCOOLER & PUMP PACKAGE

(Self-Contained,"Ductless"SpotCoolerwithOutdoorPropellerDrycooler&PumpPackage)

OHS-012/040-HG&

OHS-048/060-G with SATS DRYCOOLER & PUMP PACKAGE(SingleCompressor,Self-Contained,DuctedOnlywith

OutdoorPropellerDrycooler&PumpPackage)

OHS-048/120-DG with SATS DRYCOOLER & PUMP PACKAGE(DualCompressors,Self-Contained,DuctedOnlywith

OutdoorPropellerDrycooler&PumpPackage)

OHS-012/040-G with SATS DRYCOOLER & PUMP PACKAGE

(Self-Contained,DuctedEvaporatorwithOutdoorPropellerDrycooler&PumpPackage)

Remote Water Source(supplied by others)

OHS-012/040-C(Self-ContainedAirHandler)

("Ductless"SpotCoolerEvaporator)


(DuctedEvaporator)

Remote Liquid Chiller(supplied by others)


(DuctedOnly)






Please refer to the SATS Glycol Systems Engi-

neering Manual for specification and performance data on

SATS Glycol Pump Pack-ages and Drycoolers



No

men

clature - C

eilAiR

Systems

Model Nomenclature-"OHS" Systems

2-5

OHS = OverHead SystemCOS =CyberONESystemMCS =ModularCyberSystemVFS=VerticalFloorSystemFCS=FloorConsoleSystemSCS=STULZCondensingSection*GPS=GlycolPumpSystem*

Nominal Capacity in 1,000's of BTU/H

AHU = AirHandlingUnitAR = Remote(Split)AirCooledAS = Self-ContainedAirCooledC = ChilledWaterSystemCAA = IndoorCentrifugalCondenser*D() = Dual(Two)CircuitSystemG = Glycol CooledH() = HorizontalDischarge,"H-Series" Configuration(e.g.:HAHU,HAR,HW,HG,&HC)()AA = OutdoorPropFanCondenserfor0F*()SA = OutdoorPropFanCondenserfor-20F*()AA = OutdoorPropFanCondenserfor-30F*EC = OutdoorPropFanCondenserfor-20F* w/ECFansRCU-I = IndoorCentrifugalRemoteCondensing Unit*RCU-O = OutdoorRemoteCondensingUnit*W = WaterCooled

AWS = "AlternateWaterSource"FC = "Free-Cooling"LP = "LowProfileConfiguration"OA = "OutsideAir"*SF = "Same-Face"AirPatternSP = "SpecialConfiguration"

OHS-040-G-FC

CeilAiR - Ceiling Mounted A/C's

* SATS Condensers & Condensing Units can be found in our "Heat Rejection" engineering manual.

* SATS OHS Oustide Air Units can be found in our "CeilAiR Outide Air" engineering manual.

* SATS Pump Packages and Drycoolers can be found in our "Glycol Systems" engineering manual.


No

men

clature - C

eilAiR

Systems

Model Nomenclature Specifications

2-6

"CeilAiR"Model NomenclatureGuide Specifications

AIR COOLED SELF-CONTAINED

Integral Self-Contained(ModelsOHS-012/040-AS)

Thesystemshallbeaself-con-tained,ceilingmountedsupple-mentalairconditionerwithfactorymountedintegralaircooledcondenserwithcentrifugalblower.

Thecondensershallbesizedtoprovidethetotalheatofrejectionofthesystemata95FDBambi-enttemperature.

Thesystemshallrequireonlysinglepointsupplypowercon-nectionandthesystemshallshipfromtheSATSfactorywithafulloperatingrefrigerantcharge.

DX - EVAPORATOR SECTIONS

Air Cooled Remote Evaporator(ModelsOHS-()-()AR)

Thesystemshallbearemote(split)aircooled,ceilingmountedsupplementalairconditionerevaporator.Theevaporatorsec-tionshallhouse,asaminimum,theevaporatorcoil,expansionvalve,compressor,evaporatorblower/motorandassociatedelectricalandrefrigerationcompo-nents.

TheOHS-()-()ARevaporatorsectionshallbelocatedatsomedistancefromitscorrespond-ingCeilAiRmodelHES-()-()CAAindoororWCS-()outdooraircooledcondenser.

TheevaporatorsystemshallrequireonlysinglepointmainpowersupplyconnectionandtheystemshallshipfromtheSATSfactorywithadrynitrogenhold-ingchargereadyforfieldrefriger-ant(R-22)charging.

(Note: SATS Condensers & Condensing Units can be found in our "Heat Rejec-tion" engineering manual.)

DX - WATER COOLED SYSTEMS

Integral Self-Contained(ModelsOHS-()-W/DW)

Thesystemshallbeaself-con-tained,ceilingmountedsupple-mentalairconditionertoincludeintegralwatercooled,coaxialcondenserwithfactoryinstalledheadpressurewaterregulat-ingcontrolvalve(s).Condenser(source)watershallbeprovidedbyacoolingtowerorsomeotherremotewatersource.

Thesystemshallrequireonlysinglepointsupplypowercon-nectionandshallshipfromtheSATSfactorywithafulloperatingrefrigerantcharge.

Water Regulating Valves:

Headpressureshallbeauto-maticallycontrolledbyafactoryinstalled2-waywaterregulatingvalveratedfor150psigw.w.p.

(Note: 3-way and high pressure 300 to 400 psig rated valves are available as op-tions, page 3-9.)

DX - GLYCOL COOLED SYSTEMS

Integral Self-Contained(ModelsOHS-()-G/DG)

Thesystemshallbeaself-con-tained,ceilingmountedsupple-

mentalairconditionertoincludeintegralglycolcooled,coaxialcon-denserwithfactoryinstalledheadpressureglycolregulatingcontrolvalve(s).Condenser(source)gly-colsolutionshallbeprovidedviaaCeilAiRmodelGPS-()-()/HES-()-LGAremoteglycolpumppack-ageanddrycoolersystem.

Thesystemshallrequireonlysinglepointsupplypowercon-nectionandshallshipfromtheSATSfactorywithafulloperatingrefrigerantcharge.

Glycol Regulating Valves:

Headpressureshallbeauto-maticallycontrolledbyafactoryinstalled2-wayglycolregulatingvalveratedfor150psigw.w.p.

(Note: 3-way and high pressure 300 to 450 psig rated valves are available as op-tions, page 3-9.)

CHILLED WATER AIR HANDLERS

CHILLED WATER SYSTEM(ModelsOHS-()-C)

Thesystemshallbeaceilingmountedchilledwatersupple-mentalairconditionertoin-cludechilledwatercoolingcoil,evaporatorblowerandmotorandchilledwatercontrolvalve.Chilledwatershallbeprovidedbyaremoteliquidchillersystem.

Chilled Water Control Valve:

Coolingcapacityshallbecon-trolledwithaslowlyopeningandslowlyclosing2-waymotorizedcontrolvalveratedfor300psigw.w.p.

(Note: 3-way 300 psig motorized valves and 2 or 3-way modulating valves are available as options .)



Gu

ide Sp

ec's - Stand

ard Featu

res "Qu

ick-Referen

ce" Table

Selected Standard Features - "OHS" Series

3-1

"OHS" Model 012/040-( ) 012/040-H( ) 048/060-( ) 048/120-D( )

SELECTED STANDARD FEATURES:

TEMPERATURE CONTROL CoolingOnly Std Std Std Std Heating/ReheatingControl Opt Opt Opt Opt

HUMIDITY CONTROL ElectrodeCanisterSteamHumidifier Opt Opt Opt Opt DehumidificationModewithReheat Opt Opt Opt Opt

CONTROLS A-Tech-1.1singlestagecontrols Std Std Std N/A A-Tech-1.2twostagecontrols Opt Opt Opt Std C-Tech-10,A-Tech-20,C6000T/HMicroprocessorControls Opt Opt Opt Opt

CABINET AllAluminumConstruction Std Std Std Std InsulatedSSorPolymerCondensateDrainPan Std Std Std Std 1/2",2lbDensityThermal&SoundInsulation Std Std Std Std RubberHangingVibrationIsolators Std Std Std Std

FILTERS / GRILLES SpotCoolerswithbottomsupply/returnfiltergrille Std N/A N/A N/A DuctedUnitswithflangedductedconnections Opt Std Std Std

DX-REFRIGERATION CIRCUIT R22Refrigerant Std Std Std Std R407CRefrigerant Opt Opt Opt Opt ScrollTypeCompressor(s),(unlessotherwisenoted) Std Std Std Std HighEfficiency,AluminumFin/CopperTubeCoils Std Std Std Std ThermalExpansionValve Std Std Std Std RefrigerantSightGlass&Filter/DrierStrainer Std Std Std Std RefrigerantServiceValves Std Std Std Std

BLOWERS / MOTORS Direct-DriveEvaporatorMotors Std N/A N/A N/A Belt-DriveEvaporatorMotors N/A Std Std Std

ELECTRICAL PowerSupply -------------------------SeeElectricalTablesSection5------------------------- Multi-VoltageControlTransformer(24VClassII) Std Std Std Std IndividualMotorStarter(s)/Contactor(s) Std Std Std Std

SAFETY FEATURES CondensatePanOverflowSafetySwitch(es) Std Std Std Std High/LowRefrigerantPressureSwitches(DXunits) Std Std Std Std MotorOvercurrentandOverloadProtectionPerUL1995 Std Std Std Std

SPECIFIC MODEL STANDARD FEATURES:AIR COOLED LowAmbientHeadPressureControl -------------------Threetypesavailable0F,-20For-30F------------------- Integral(modelOHS-()-AS)orRemoteAirCooledCondenser Std Std Std Std

WATER / GLYCOL COOLED 2-way,150psigWater/GlycolRegulatingValves Std Std Std Std HighPressure&3-wayValves Opt Opt Opt Opt Coaxial,Tube-in-TubeHeatExchanger Std Std Std Std

ALL SPLIT DX SYSTEMS LiquidLineSolenoidValvetoPreventLiquidSlugging Std Std Std Std

DUAL CIRCUIT DX SYSTEMS Two(2)IndependentRefrigerantCircuits N/A N/A N/A Std Two(2)EqualHorsepowerScrollCompressors(1percircuit) N/A N/A N/A Std A-Tech-1.2twostagecontrols N/A N/A N/A Std

CHILLED WATER SYSTEMS 2-way,300psigMotorizedValve Std Std Std Std Modulating,HighPressure&3-wayValves Opt Opt Opt OptCODE CONFORMANCE NRTLConformanceCompliancetoUL1995Standard Std Std Std Std NYCMEA-163-88-E/ChicagoCodeApproval Std Std Std Std


Gu

ide Sp

ec's - Stand

ard Eq

uip

men

t

Guide Specifications - Standard Equipment

3-2

QUALITY ASSURANCE(ISO-9001:2001 Registered)SATSoperatesinanISO-9001:2001registeredqualitycontrolenviron-ment.EachSATSemployeeiscommittedtosatisfyinghisorhercustomerexpectationswiththehighestlevelofconsistent,mea-surableandcontinuousqualityimprovement.

GENERAL GUIDE SPECIFICATION

General Description

Thesystemshallbeaceilingmountedsupplementalairconditionerde-signedandbuilttothehighestofindustrystandards.Thesystemshallbecompleteandfactoryrun-testedbeforeshipment.ThesystemshallbelistedandlabeledincompliancewithUL1995(#SATS-1995)byanap-provedNationallyRecognizedTestingLaboratory(NRTL).ThesystemshallbeMEANYC(MEA-163-88-E)andChicagoCodeapproved.

ThesystemshallbemanufacturedbyISO-9001QualityRegisteredStulzAirTechnologySystems,Inc.inFrederick,Maryland,USA.

Component AccessTheairconditionershallbefullyaccessiblein-placethrougheasilyremovablesideaccesspanels.

Cabinet ConstructionThecabinetandaccesspanelsshallbefabricatedfromaluminumforcor-rosionprotectionandtominimizethesystemsweight.Thepanelsshallbelinedwith2lb/ft2highdensitysoundandthermalinsulationandsealedwithself-extinguishinggasketingcon-formingtoNFPA90Aand90B.

Electrical System

Thesystemshallincorporateovercur-rentandoverloadprotectioninac-cordancewithUL1995requirements.Eachblowermotor,compressor,electricheaterstageandhumidifier(ifapplicable)shallbeprovidedwithafactorymountedandwiredstarter/contactor.

Thecontrolcircuitshallbea24VACClass2lowvoltagecircuitincludingacircuitbreakerforprotection.Lowvoltage,highvoltageandgroundingwiresshallbecolorcodedandshallbeindividuallynumberedateachendforeaseofservicetracing.AllwiringshallbeinaccordancewiththeNationalElectricCode(NEC).

Overflow Safety Float SwitchAcondensatepanwaterlevelswitchshallbeincorporatedtoshutthesys-temdownifacondensateoverflowconditionissensed.

Remote Stop / StartIncludedinthesystem'selectricalcontrolcircuitshallbea2-pintermi-nalconnectionforremotestop/startoftheCeilAiRairconditionerbyaremotesource.

CoilsEvaporatorsystemsshallbecon-figuredforadraw-thruairpatterntoprovideuniformairdistributionovertheevaporatorcoilface.Thecoilsshallbeseamlessdrawncoppertubes,mechanicallybondedtotem-

peredaluminumfinswitharaised-lancedfindesignformaximumheattransfer.Coilendplatesshallbehotdippedgalvanized.

Theevaporatorcoilshallbemountedinaninsulatedstainlesssteelconden-satepan.

DX- Refrigeration System

Allrefrigerationpipingshallberefrig-erantgradetubing.Eachrefrigerantcircuitshallinclude,asaminimum,refrigerantdrier/strainer,sightglasswithmoisturedetector,thermalexpansionvalvewithrapidbleedportfeatureandexternalequalizer,evapo-ratorcoil,compressor,highpressureswitchwithmanualresetandalowpressureswitchwithautomaticreset.

Split/Remotesystemsshallhavealiquidlinesolenoidforrefriger-antisolationtopreventliquidslug-ging.Allhighpressurejointsshallbebrazed,andtheentiresystemshallbepressuretestedatthefactorywithdrynitrogen,evacuatedtoatleast50micronsandfullychargedwithrefrigerant.

Note: All split / remote DX systems ship with a dry nitrogen holding charge. All self-contained DX systems ship with a full refrigerant (R-22) operating charge.

Scroll Compressors

Eachcompressorshallbeahighef-ficiency,highreliabilityandlowsoundScrollCompressor,unlessspecificallynotedotherwise.

Thermal Expansion Valves

Sight Glasses

Filter Drier/Strainers



Gu

ide Sp

ec's - Stand

ard Eq

uip

men

t


3-3

Thecompressorshallbecompletewithchargingandserviceschraederports,internalvibrationisolation,internalthermaloverloads,internalpressurereliefvalve,internaldis-chargegasvibrationeliminatorandexternalvibrationmountingisolation.

Chilled Water Systems(Models OHS-()-C)

Cooling Coil:

Thechilledwatercoilshallbecon-structedofseamlessdrawncoppertubes,mechanicallybondedtotem-peredaluminumfinsformaximumheattransfer.Coilendplatesshallbehotdippedgalvanized.

Thecoolingcoilshallbemountedinaninsulatedstainlesssteelconden-satedrainpan.

Control Valve:

Coolingcapacityshallbecontrolledbyafactoryinstalledslowlyopeningandslowlyclosing2-waymotorizedcontrolvalveratedforamaximum300psigw.w.p.

(Note: Please refer to page 3-10 for ad-ditional chilled water valve options.)

Blowers / MotorsDirect Drive Systems

Theblower(s)shallbedirectdrivenwithdoublewidth,doubleinlethous-ingandforwardcurvedblades.Theblower(s)shallbedynamicallyandstaticallybalancedtominimizevibra-tionandoperateintheClassIrange.Theblower(s)shallbecorrosionprotectedwithapaintedhousingandimpellerwheel.

Thethreespeed(208V)evaporator

motorshallbefactorywiredforthecorrectspeedtoproducethespeci-fiedairquantity.Themotor(s)shallhaveinternaloverloadprotection.

(277V & 460V direct-drive motors shall be 2-speed.)

Belt Driven Systems

Theblower(s)shallbebeltdrivenwithdoublewidth,doubleinlethous-ingandforwardcurvedbladesandpermanentlylubricatedballbearingssizedforanaverage100,000hoursofservicelife.TheblowersshallbedynamicallyandstaticallybalancedtominimizevibrationandoperateintheClassIrange.

Theblower(s)shallhaveanadjust-ablebaseforbelttensioningandalockingsystemtopreventthemo-torsfrommoving.Themotorsdrivesheavesshallhaveanadjustablepitchtochangethespeedoftheblowers.Themotor(s)shallbe1725RPMandshallhaveoverloadprotectionandaminimumNEMAservicefactorof1.15.

Temp & Humid Control

ThestandardCeilAiRsystemiscon-figuredasa"coolingonly"system.Heating,reheatingand/orhumiditycontrolcanbeoptionallyaddedtoprovidetotalspacetemperatureandhumiditycontrol.(Please see pages 3-5 thru 3-7 for more details.)

A-Tech-1.1StandardsinglestageDXandnon-proportionalCWHeat/Coolprogrammabledigitalthermo-stat.

A-Tech-1.2StandarddualstageDXHeat/Coolprogram-mabledigitalthermostat.

C-Tech-10OptionalsingleordualstageDXornon-propor-tionalCWTemperatureandHumidityMicro-processorControllerwithalarms.

A-Tech-20 & C6000Optionalallpur-poseAdvancedTemperatureandHumidityMicroprocessorControllerswithalarmsandop-tionalremoteBMScom-municationsconnections.

(NOTE: Please refer to pages 3-6 & 3-7 for additional specification details on all CeilAiR ceiling AC control options.)


Gu

ide Sp

ec's - Stand

ard Eq

uip

men

t


3-4

Evaporator Air Patterns & Filtration"Ductless" Spot Cooler (Models OHS-012 thru 040-( ) only.)

Theairconditionershallbedesignedforinstallationinastandard2'x4'ceilinggridforductlesssupplyandreturnevaporatorairthroughafac-toryprovidedbottomsupply&returnfiltergrille.

Theairconditioningunitshallhaveadropout,1"deep,class2(perU.L.Standard900)filtereasilyaccessedthroughthehingedreturngrille.Thefiltershallhavearatingofatleast80%averagearrestanceasmeasuredbyASHRAEStandard52-76testmethod.

Ducted Evaporator(Available on all model sizes)

Theairconditionershallbeprovidedwithevaporatorsupplyandreturnairductconnections.

EVAPORATORAIR OUT

EVAPORATORAIR IN

EVAPORATORAIR OUT

EVAPORATORAIR IN

Theunitshallhaveslideout,1"deepClass2(perU.L.Standard900)filter(s)easilyaccessedthroughasideaccesspanel.Thefiltershallhavearatingofatleast80%averagearrestanceasmeasuredbyASHRAEStandard52-76testmethod.

(Note: Please refer to Section 6 for standard CeilAiR cabinet configurations. Consult your local SATS sales representa-tive for special applications.)

DX - Heat Rejection

AIR COOLED

PleaserefertotheSATSHeatRejec-tionEngineeringManualforspecifica-tiondetailsofaircooledcondensersandcondensingunits.

WATER / GLYCOL COOLED

Water/Glycol CooledCondensers

Coaxial Tube-In-Tube:(Models OHS-012/120-()W/G)

Eachevaporatorrefrigerantcircuitshallbeprovidedwithafactoryinstalledsinglepass,counterflowconfigured,tube-in-tubecoaxialcondenser;designedandtestedfora450psig.w.w.p.

2-Way, 150 psig Regulating Valve(Standard on all OHS-( )-()W/G)

Eachrefrigerantcircuit'sheadpres-sureshallbecontrolledbyafactoryinstalled2-waywater/glycolregulat-ingvalveratedfor150psig.w.w.p.

(Note: 3-way and high pressure water/glycol regulating valves are optionally available, page 3-9.)



Op

tion

al Features - In

dex

Optional Features - Guide Specifications

3-5

Optional Features IndexOPTION .............................................. page

Free Cooling - Valve Combinations 150psigRatedSystem:(standard)...................... 3-11 - 3-way,150psig,DXCondenserValve(s) - 3-way,300/400psig,FCCoilValve 300psigRatedSystem:(optional)....................... 3-11 - 3-way,350psig,DXCondenserValve(s) - 3-way,300/400psig,FCCoilValve 400psigRatedSystem:(optional)....................... 3-11 - 3-way,450psig,DXCondenserValves - 3-way,400psig,FCCoilValve

Capacity Modulation Options

Snap-Acting,HotGasBypass................................. 3-11Full-Floating,HotGasBypass................................. 3-12DualCompressor/2-StageSystems....................... 3-12

ModulatingChilledWaterControlValves............... 3-12

ACCESSORIES

3-PhasePowerSupply............................................ 3-12

277/1/60PowerSupply.......................................... 3-12

CondensatePump............................................ 3-12/13

SmokeDetector..................................................... 3-13

Firestat .......................................................... 3-13

RemoteWater/LeakDetector............................... 3-13

AcousticalCompressorSoundJackets.................... 3-13

LowEnteringCondenserWater............................. 3-14

MainPower-Non-FusedServiceSwitch................. 3-14

RefrigerantLineswith QuickDisconnectCouplings.................................. 3-14

Energy $aving Cooling Options

Free-CoolingCycle................................................. 3-14AlternateWaterSourceCycle................................ 3-14

Microprocessor Controls

A-Tech-1.1 (DigitalThermostat,1-stage)................ 3-6A-Tech-1.2 (DigitalThermostat,2-stage)................ 3-6C-Tech-10 (MicroTemp/Humidw/Alarms)............ 3-6A-Tech-20 AdvancedMicroprocessor.................... 3-7A-Tech-20 RemoteCommunications..................... 3-7C6000 AdvancedMicroprocessor.................... 3-8C6000 RemoteCommunications..................... 3-9

Humidity Control Options

SteamHumidifier................................................... 3-10

DehumidificationCycle

- ElectricReheat/Heat...................................... 3-10 - HotGasReheat............................................... 3-10 - HotWaterReheat/Heat................................. 3-10 - SteamReheat/Heat....................................... 3-10 - SCRFired(0-10Vdc)ElectricReheat................ 3-10

High Static Pressure Blowers

HighStaticBelt-DriveBlowerUpgrade.............. 3-10/11 (Upto2.0"ext.staticpressure)

High Efficiency Filtration (IAQ)

IAQHighEfficiencyFilters..................................... 3-11

Head Pressure Control Options

Air Cooled - Low Ambient Control 0FAmbient.................................................... 3-11 -20FAmbient................................................ 3-11 -30FAmbient................................................ 3-11Water/Glycol Cooled - Regulating Valves 2-way,150psig(Standard).............................. 3-11 2-way,350psig............................................... 3-11 2-way,450psig............................................... 3-11

3-way,150psig............................................... 3-11 3-way,350psig............................................... 3-11 3-way,450psig............................................... 3-11


Op

tion

al Features - M

icrop

rocesso

r Co

ntro

l Op

tion

s

Optional Features - Microprocessor Control Options

3-6

A-Tech-1.1

TheCeilAiRceilingairconditionershallbeprovidedwithSATS'"slimline",ultra-thinprofile,1-stagecool/1-stageheat,remotewallmountedprogrammabledigitalmicroprocessorbasedcon-troller.

Note: The A-Tech-1.1 thermostat is stan-dard on all single stage DX and non-pro-portional chilled water systems.

A-Tech-1.2

TheCeilAiRceilingairconditionershallbeprovidedwithSATS'"slimline",ultra-thinprofile,2-stagecool/2-stageheat,re-motewallmountedprogramma-bledigitalmicroprocessorbasedcontroller.

Note: The A-Tech-1.2 thermostat is stan-dard on all dual stage DX systems.

Common A-Tech-1.1/1.2 Features:

Autochangeover forHeat/CoolModes SelectableFordegreesCdisplay Fanselectorforcontinuousfan operation Built-inshortcycleprotection Internalswitchtolock-outthekeypad topreventunauthorizedtampering Electroniccalibration 45secondfanpurgeafterheating andcoolingcall Day/Nightbuttonforuserselectable alternatesetpointmanualsetback

12houror24hourclock DaylightSavingsTimebuttonto adjusttheclock+/-1hour Copybuttontoallowoneprogramto becopiedtosubsequentdays Overridefeature Doesnotrequireabattery Solidstateelectronicoutput

C-Tech-10

Temperature & HumidityMicroprocessor Controller

TheCeilAiRceilingmountedairconditionershallbeprovidedwithSATS'C-Tech-10MicroprocessorbasedTemperatureandHumid-itycontrollerwithAlarms.Thecontrollershallincorporateauser-friendlyoperatingenvironmentwithbacklitgraphicLCDdisplay.

Standard Features:

Display/Keypad: BacklitLCDgraphicdisplaywithcharacterstoshowtheoperat-ingmode,time,setpointsandactualreadings

InternalTemperatureandHu-miditySensor

3SetPointProgrammable (Normal,Temporary,Night)per day,7daysperweek SummaryAlarmContact

Visual/Audible Alarm Indication:

HighTemp(HIT) DirtyFilter(EFL)LowTemp(LOT) SensorFailureHighHumid(HIH) Comm.FailureLowHumid(LOH) Summary(EID)

SummaryAlarm(EID):condensate overflow/waterdetection;smokedetec- tion;firestat(ifapplicable)

MaintenaceAlarms:basedonuser definedcomponentrun-timesschedules (compressor1(HR1)&2(HR2);evap blower(HRF).

CeilAiR ControlOptions

5-Levelsofmicroprocessorcontroloffer-ingsallowyoutheflexibilityofselectingthebestcontrolschemefortheiruniquerequirements:

A-Tech-1.1StandardsinglestageDXandnon-proportionalCWHeat/Coolprogrammabledigitalthermo-stat.

A-Tech-1.2StandarddualstageDXHeat/Coolprogram-mabledigitalthermostat.

C-Tech-10OptionalsingleordualstageDXornon-pro-portionalCWTemperatureandHumidityMicroprocessorControllerwithalarms.

A-Tech-20Optionalallpur-poseAdvancedTemperatureandHumidityMicroproces-sorControllerwithalarmsandoptionalremoteBMScommuni-cationsconnections.

C6000OptionalallpurposeAdvancedTemperatureandHumidityMicroprocessorControllerwithalarmsandoptionalremoteBMScommunicationsconnections.



Op

tion

al Features - M

icrop

rocesso

r Co

ntro

l Op

tion

s


3-7

SystemOperation: FanContinuousoronDemand Auto-RestartUponPowerLoss RemoteStop/StartConnection ShortCycleProtection ColdStartTimeDelay Pump-DownCycle

Optional Features:

RemoteTemp/HumidSensor:Optionalremotewallmounted temperatureandhumiditysensorRemoteSensorCableOptions:75ft.cablelength(standardoption)150ft.cablelength

A-Tech-20

Advanced MicroprocessorTemperature & HumidityController with Alarms

TheCeilAiRceilingmountedairconditionershallbeprovidedwithSATS'A-Tech-20AdvancedMicro-processorbasedTemperatureandHumiditycontrollerwithAlarms.Thecontrollershallincorporatea"user-friendly"operatingenviron-ment,toalloweasysystemsetupandoperation.

Standard Features:

4x20characterliquid-crystal alpha-numericaldisplay FieldConfigurable 30Ft.RemoteDisplayCable UnitMountedT/HSensor CurrentUnitStatus ComponentRun-TimeHistory Visual&AudibleAlarm Indication SummaryAlarmContacts AlarmHistory

RemoteStop/StartConnection SelectableAutomaticorManual RestartUponPowerLoss SequentialLoadActivationUpon PowerLossRestart AlarmDelay forSpaceT/HRecov- eryUponPowerLossRestart Multi-LevelPasswordSecurity Protection ShortCycleProtection ColdStartTimeDelay Pump-DownCycle ServiceMode Time-ClockwithOverride Night-SetbackwithOverride

Display/Sensor Options:

RemoteDisplayCableOptions: 30ft.cablelength(standard) 75ft.cablelength 150ft.cablelength

RemoteSensorCableOptions:

75ft.cablelength(standardoption) 150ft.cablelength

ALARM CONDITIONS:

TheA-Tech-20alertstothefollowingalarmconditions(ifapplicable):

HighTemperature DirtyFilterLowTemperature SmokeDetectionHighHumidity FirestatLowHumidity LeakDetectionHighHeadPress GCPumpFailureLowSuctionPress SensorFailureLossofAirFlow Comm.FailureLossofPower

Theoperatormayselectwhichalarmsareactiveorinactive.

CyberLAN Networking Options:

Multi-Unit Sequencing:MultipleCyberAiRairconditionersincorporatingA-Tech-20controlscanbeconfiguredingroupsofupto6(six)unitstoallowfor"N+1"redundancy/backupcriticalappli-cationoperation.

TheA-Tech-20isprogrammedtoautomaticallychangefromcurrentprimaryunitoperationtosecond-arystandbyunitoperationvia

threemethods:

1) ManualChangeOver2) AutomaticTimed(1-30days)3) AutomaticChangeOveronUnit Failure(ifapplicable):

InterconnectCableOptions:


Capacity Assist-Mode: (Additionally Optional)

Inadditiontoswitchoverviamanual,automatictimedorfailure,theCyberLANMulti-UnitSequencingCapacityAssist-Modecaninitiateswitchovertostandbyunitoperationtoassistinthetemperatureand/orhumiditycontrolofthespace.

CapacityAssistSensorCableOpts:


CyberLAN w/ A-Tech 20 Remote Communications

(Optional)

REMOTEBMSCONNECTION(ModBusGateway)

A-Tech-20Inputs&Outputscanberemotelymonitored(addressreadable)andremotelycontrolled(addresswritable)viaanybuild-ingmanagementsystem(BMS)/localareanetwork(LAN)controlsystemthatcancommunicateviaaModBusprotocol.

16UnitsPerCyberLANModBus:EachModBusGatewaycanac-commodateupto16(sixteen)A/Cunitsinagroup.


Op

tion

al Features - M

icrop

rocesso

r Co

ntro

l Op

tion

s


3-8

C6000

TheCeilAiR ceiling-mounted airconditionershallbeprovidedwithSATSC6000MicroprocessorbasedTemperatureandHumiditycontrol-lerwithAlarms.Thecontrollershallincorporateauser-friendlyoper-ating environment, to allow easysystemsetupandoperation.

TheC6000 is a completemicro-processor based control systemdesignedforoperating,controllingandmonitoring the precision airconditioningunit.

TheC6000controllershallincludeafull-featuredLEDdisplayforvisualindication of the units operatingconditions.

Thecontrollershallbemountedinanindoorratedsteelbox.Theboxshall bepowder coated tomatchthe environmental control unit.Theboxshallcontainthecontrollerboard,theIOboard,andallneces-sarytransformersandinternalwir-ing.Thecontrolboxshallbewallmounted and fieldwired to theenvironmentalcontrolunit.

Display Key Pad

TheDisplayKeyPadshallfeatureaneasytoread,liquid-crystalalpha-nu-mericaldisplay.Thekeypad/displayallowstheoperatortovisuallymoni-tor and customize unit functionsandsettings.Theself-explanatory,keypad nomenclature shall aid intheeaseoflocationofsystempro-grammingfeatures.

Field ConfigurableTheC6000 controller is fieldpro-gramconfigurableandcapableofmatchingtheuniqueneedsofanydatacenter,telecommunicationorothercriticalarea.

Sensor Location OptionsAsastandard,theC6000tempera-tureandhumidity sensor shall befactoryunitmountedinthereturnairstreamofthePrecisionACunit,afterthereturnairfilter(s).

System Setup & AdjustmentsThe C6000 shall be completelyfactorypreprogrammed,andthere-fore,mostapplicationswillrequirenofieldsetup.However,thede-fault setpointsand their rangesare easily adjusted from C6000keypad/display.

Unit Status DisplayTheC6000keypaddisplays currentunitfunctionsandroomstatus:CurrentDryBulbTempSetPointCurrentRelativeHumiditySet Point

Current Unit StatusSystemON/OFFCoolingHeatingHumidifyingDehumidifyingStandbyModeReheatingManualModeActualRoomDBTemperatureActualRoomRelativeHumidity

Run TimesThehistoricalrun-timeinhoursofthe followingmajor componentsshall be available directly fromtheC6000 keypad/display: (if ap-plicable)BlowerMotor(s)Humidifier

ChilledWaterValve

Alarm ConditionsAlarm conditions activate an au-dibleandvisualindicator.Analarmshall beacknowledged throughaResetbuttonlocatedonthekeypaddisplay.

TheC6000alertstothefollowingalarmconditions(ifapplicable):HighTemperatureLowTemperatureHighHumidityLowHumiditySmokeDetectionFirestatLeakDetectionSensorFailureDirtyFilterLossofAirFlow

Summary Alarm ContactAsummaryalarmdry-contact(n/o)connection shall be available forremote annunciation of an alarmcondition. Anadditionaluser-de-fined custom alarm dry-contactshall also be available onmostsystemconfigurations.

Alarm HistoryTheC6000controllerprovidesuserswitharecordedhistoryofthelast80alarms,includingthetimeanddateofthealarmoccurance.

Control Inputs/OutputsThe C6000 is capable of bothdigital (on/off) and analog inputandoutputdevicecontrol.Priortoshipment,eachPrecisionACunitsC6000 is factoryprogramconfig-ured tomatch the units systemoperationalrequirements.

Temperature AnticipationThe C6000 shall incorporate aself-calibrating and self-adjustingcontrol logic that adjusts the re-



sponseoftheSATSairconditionerto changes in temperature andhumidity.Thesystemshallprovidepremium setpoint accuracywhilecontrolling the room conditionsrate of change, minimizing theequipmentenergyconsumptionandmaximizing the systems operatinglifeandreliability.

Power Loss RestartIn theeventofa lossofpower tothesystem,theC6000canbecon-figured for Automatic orManualRestart. TheC6000s non-volatilememory enables the system to re-startwhenpowerisrestored,with-outthelossofthelaststoredsetpointsandothersystemconfigura-tionsettings.

Sequential Load ActivationTominimizethetotalinrushcurrentloadsduringsystemstartup/restart,theC6000controller shallbecon-figured for time-delay sequencestartup. The user can designatespecificunit restart time-delays, aswellas,eachunitsrespectiveelectricheaterand/orhumidifier.Unitrestartdelaycanbeadjustedfrom0to10minutes.

Recovery DelayAfter a power loss, the C6000sRecoveryDelay feature allows thesystemtooperatewithoutinitiatinganyhighorlowtemperatureorhu-midityalarmsforadelayedperiod.This featureallows time (15 to60minutes adj.) to pull-down theconditioned spaces loadwithoutnuisancealarmsduringinitialstartuporpowerlossrestart.

SecurityMultiple security levels preventunauthorizedadjustmentofcriticalsystemcontrolparameters.

Diagnostic & Service ModeThe C6000 shall incorporate aunique self-diagnostics algorithmthatcontinuallytestssystemsfunc-tions and hardware operation. Intheeventofsuchafailure,theuserwillbealertedtotheconditionviaavisualandaudiblealarm.

Control BoardTheControl Board shall initiate aself-testofthecontrolsystem.

Input DiagnosticsAllsysteminputsandoutputdevicesshallbecontinuouslymonitoredforproperoperation.

Night Set-backTheC6000shallincludeNightSet-Backoccupied/non-occupiedenergysavingmodes.Thisfeatureenablesthe user to customize each unitsdaily5-day/weeklyand2-day/week-endoperationalschedule.

Remote BMS Connection

MIB GATEWAY (Optional)C-6000Inputs&Outputsshallberemotelymonitored(addressreadable)andremotelycontrolled(addresswrit-able)viaanybuildingmanagementsystem(BMS)/localareanetwork(LAN)controlsystemthatcancommunicateviaaModBusprotocol.EachC-6000configuredforBMScommunicationshallincorporateanRS-485Se-rialCommunicationPortthatisfieldconnectedtoafactoryprovidedwallmountedMIBGateway.MIB-FS GATEWAY (Optional)C-6000Inputs&Outputsshallberemotelymonitored(addressread-able)andremotelycontrolled(addresswritable)viaabuildingmanagementsystem(BMS)/localareanetwork(LAN)controlsystem.AvailableProtocols,ModbusRTU,ModbusTCP/IP,BacnetIP,BacnetMSTP,BacnetEthernet,MetasysN-2,andLonworks.

EachC-6000configuredforBMScom-municationshallincorporateanRS-485SerialCommunicationPortthatisfieldconnectedtoafactoryprovidedwallmountedMIBGateway.TheMIB-FSrequiresfieldconfiguration.Numberofunits,typeofprotocolemployed,andindividualdata-pointsmonitoredmustbeconfiguredintheMIB-FSpriortouse.

Op

tion

al Features - M

icrop

rocesso

r Co

ntro

l Op

tion

s


3-9


Op

tion

al Features - G

uid

e Specifi

cation

s


3-10

SELECTED OPTIONS

Humidity Control

Canister Steam Humidification

Thehumidifiershallbeanelectrodesteamcanistertypeandshallhaveanadjustablehumidityoutputsettingfrom25to100%ofthefullratedhumidifiercapacity,anautomaticflushcyclethatsensesthecurrentconsumptionofthehumidifierandcontrolsmineralconcentrationofthewater.AChangeCylinderlightshallnotifyservicepersonnelwhenthehumidificationoutputisbelowratedrequirementsandwhenmainte-nanceisdue.

Dehumidification Cycle

Theceilingairconditionershallbeprovidedwitharefrigerationbaseddehumidificationmode.Moistureshallbecondensedonthecoolingcoilanddischargedthroughthecondensatedrain.

Reheat(electric,hotgas,hotwaterorsteam)shallbeprovidedtooffsetsensiblecoolingduringthedehumidi-ficationcycle.

Electric Reheat/Heat

Afactorymountedandwiredelectricresistanceheatershallbeincludedtoprovideautomaticsensiblereheatingmodeduringthedehumidificationcycleandautomaticheatingmodeasrequired.Electricheatersshallbeprovidedwiththermal/magneticcircuitbreakerswhichshallprotecteachconductor.Theheaterelementsshallbehousedwithinastainlesssteelframewithmountedsupports.Includedshallbeoneautomaticresettingover-temperaturesafetydevice(pilotduty),andanon-reset-tableover-temperaturesafetydevice(locatedinmainpowerline).

Heatersshallusefastreactingni-chromewireheaterelementswhichcoolquicklywhenturnedoffelimi-natingresidualheatproblems.

Hot Gas Reheat:(ModelsOHS-()-AS,AR,W&Gonly)

HP LP

FloodedHead PressureControl Valve

Equ

aliz

erLi

ne

SolenoidValve

RefrigerantReclaim Port

Liquid RefrigerantReceiver

ReliefValve Sight

Glass

RefrigerantDrier / Strainer

Thermal ExpansionValve

ScrollCompressor

Remote AirCooled Condenser

EvaporatorCooling Coil

FeelerBulb

Hot GasReheat Coil

AirFlow

Hot GasReheat Valve

Equ

aliz

erLi

ne

Afactoryinstalledcoppertube,alumninumfinhotgasreheatcoilandvalveshallbeprovidedforautomaticsensiblereheatingmodeduringdehumidificationcycle.Hotcompressordischargegasshallbedivertedfromthecondensertothehotgasreheatcoilprovidingenergyfreesensiblereheating.

(Note: Hot Gas Reheat is not available on systems incorporating Free-Cooling or Alternate Water Source, because no method of reheat would be available during non-compressorized FC or AWS operation.)

Hot Water Reheat/Heat

Afactoryinstalledcoppertube,aluminumfinheat/reheatcoiland2-waycontrolvalveshallbeprovidedtocontroltheflowofhotwaterforautomaticsensiblereheatingmodeduringthedehumidificationcycleandautomaticheatingmodeasrequired.

Steam Reheat/Heat

Afactoryinstalledcoppertube,alu-minumfinheat/reheatcoiland2-waycontrolvalveshallbeprovidedtocontroltheflowofsteamforautomaticsensiblereheatingmodeduringthedehumidificationcycleandautomaticheatingmodeasrequired.

(Note: Steam trap and steam piping specialities shall be provided by others not SATS.)

SCR Fired Reheat/Heat

Theelectricheat/reheatshallbecontrolledthroughaZeroFiringSiliconControlledRectifier(SCR)withanextrudedaluminumheatsinkandsolidstatelogicsystemtoprovideclosedrybulbtemperaturecontroloftheconditionedair.

A-Tech-20proportional(0-10Vdc)microprocessorcontrolsshallbeprovidedwiththeSCRFiredElectricReheatoption.

High Static Pressure Belt-Drive Blowers

TheCeilAiRceilingairconditionershallbeprovidedwithahighstaticpressurebelt-drivenevaporatorblowertoprovidestandardunitCFM@____"e.s.p.

(Note:DuetotheprobablechangeinstandardunitblowermotorhorsepowerfortheHighStaticBelt-DriveBlower



Op

tion

al Features - G

uid

e Specifi

cation

s


3-11

} 3-wayvalvesshiplooseforfieldinstallation.

option,pleaseconsultyourlocalSATSsalesrepresentativeforthefollowingunitspecificationchanges:

BlowerMotorHorsepower NetCoolingCapacity ElectricalData DischargeBlowerData

Unit AIr Flow Rate (CFM) will match the standard data as shown in Section 4 of this manual for each respective unit model.)

Filtration

CeilAiRceilingA/C'sareavailablewiththefollowingstandard(F1)andoptional(F2,F3&F4)highefficiencyIAQconsciousfiltration:

F1: 1",20%Eff.Filters(standard)F2: 2",30%Eff.FiltersF3: 4",60%Eff.FiltersF4: 2",30%Pre/4",60%Eff.FinalFilters

AirPatternType FiltersAvail.

DirectDrive012/040: w/SpotCooler: F1 w/DuctedReturn: F1,F2(n/a024)

Belt-DriveUnits: w/DuctedReturn: F1,F2,F3&F4

Filterratingsarebasedondustspotef-ficiencyratingsperASHRAETestStandard52-76.

(Note: F2, F3 & F4 optional filters create additional static pressure and may require the High Static Pressure Belt-Drive Option. Please consult your local Sales Represen-tative for details.)

Head Pressure Control

AIR COOLED - Low Ambient

0F, Fan Cycling / Fan Speed

Theaircooledsystemshallincor-poratealowambientfancycling/

fanspeedheadpressurecontrolforyear-roundairconditioningsystemoperationdownto0FDBminimumambientairtemperature.

(Note: 0F fan cycling head pressure con-trol is a standard feature for all CeilAiR air cooled condensers and condensing units incorporating direct drive condenser fans.)

-20F, Variable Speed Control(ModelWCS-()Condensers)

Theaircooledsystemshallincorpo-ratealowambientvariablespeedfanheadpressurecontrolforyear-roundsystemoperationdownto-20FDBminimumambientairtemperature.

-30F, Flooded Control

HP LP


Equa

lizer

Line

Liquid LineSolenoid Valve



ReliefValve Sight

Glass

RefrigerantDrier / Strainer Thermal Expansion

Valve

LowPressureSwitch

ScrollCompressor


(Optional)


FeelerBulb

HighPressure

Switch

Theaircooledsystemshallincor-poratealowambientfloodedheadpressurecontrolforyear-roundsystemoperationdownto-30FDBminimumambientairtemperature.

Thisoptionshallincludeafactoryinstalledcrankcaseheater,cold-startrelay,liquidrefrigerantreceiverwithreceiverliquidlevelsightglassandheadpressureregulatingvalveforfloodedcondenseroperation.

DXWaterCooledandGlycolCooledsystemsareavailablewithfollowingstandard(V1)andoptional(V2-V6)headpressureregulatingcontrolvalves:

V1: 2-way,150psig(standard)V2: 2-way,350psigV3: 2-way,450psig

V4: 3-way,150psigV5: 3-way,350psigV6: 3-way,450psig

Eachrefrigerantcircuit'sheadpres-sureshallbecontrolledbyafactory(orfield)installed____-waywater/glycolregulatingvalveratedfor____psig.w.w.p.

FREE-COOLING SYSTEMS

DXWater/GlycolCooledsystemswithFree-CoolingareavailablewiththefollowingstandardandoptionalDXheadpressureandFree-Coolingvalvecombinations:

150psigRatedSystem:(standard)

DXValves = 3-way,150psigFCValve = 3-way,300/400psig

300psigRatedSystem:(optional)

DXValves = 3-way,350psigFCValve = 3-way,300/400psig

400psigRatedSystem:(optional)

DXValves = 3-way,450psigFCValve = 3-way,400psig

Eachrefrigerantcircuit'sheadpres-sureshallbecontrolledbyafieldinstalled3-waywater/glycolregulat-ingvalveratedfor____psigw.w.p.Free-Coolingmodecoolingshallbecontrolledbyafactoryinstalled3-waymotorized(on/off)controlvalveratedfor____psig.w.w.p.

Note: Modulating (0-10 Vdc) Free-Cool-ing mode cooling control is optionally available via A-Tech-20 controls and modulating 3-way FC control valve.

DX - Capacity Modulation /Freeze-Protection

SNAP-ACTING, Hot Gas Bypass(ModelsOHS-()-AS,AR,W&Gonly)

TheCeilAiRceilingA/Cshallincor-porateasnapactinghotgasbypasssystemtoprovidemodulationoftheunitscoolingcapacityandevaporatorcoilfreezeprotectionunderlowloadconditions.


Op

tion

al Features - G

uid

e Specifi

cation

s


3-12

HP

LP


Equ

aliz

erLi

ne


RefrigerantReclaim PortLiquid Refrigerant

Receiver

ReliefValve Sight

Glass


Valve

LowPressureSwitch

ScrollCompressor


(Optional)


FeelerBulb

HighPressure

Switch

Hot GasRegulator Valve

(Optional)

FULL-FLOATING, Hot Gas Bypass(ModelsOHS-()-()AHU/SCOonly)

TheCeilAiRceilingA/Cshallincor-porateafullfloatinghotgasbypasssystemtoprovidemodulationoftheunitscoolingcapacityandevaporatorcoilfreezeprotectionunderlowloadconditions.

DUAL COMPRESSOR SYSTEMS(ModelsOHS-()-D())

Theairconditionershallbeadualscrollcompressorsystemwithtwoindependentrefrigerationcircuitstoprovide50%capacityunloading,aswellascomponentredundancy.

Theairconditionershallbeprovidedwitha2-Stagetemperaturecontrol-lerwithmicroprocessorbasedcontrollogicforautomaticstaging.

Chilled Water & AWSControl Valves

ChilledWaterandAlternateWaterSourcecoolingshallbecontrolledbythefollowingstandardandoptionalcontrolvalves:

ModelsOHS-012/060-C/AWS:

V1: 2-way,300psig(standard)V2: 2-way,400psigV3: 3-way,300psigV4: 3-way,400psig

ModelsOHS-072/120-C/AWS:

V5: 2-way,400psig(standard)

V6: 3-way,400psig

Standard (On/Off) Valve Control :A____-waymotorized(On/Off)CWorAWScoolingcontrolvalveratedforamaximum____psigw.w.p.shallbefactoryunitinstalled.Precisioncoolingcontrolshallbeaccomplishedviaaspringreturnslowopenandclosevalvedesign.

Optional (0-10 Vdc) Valve Control:A____-waymodulatingCWorAWScoolingcontrolvalveratedforamaximum____psigw.w.p.shallbefactoryinstalled.Precisioncoolingcontrolshallbeaccomplishedviaa0-10VdcA-Tech-20analogcontrolsignaltotheproportionalactuatingcontrolvalve.

ACCESSORIES

3 Phase Power Supply

HP LP


Equ

aliz

erLi

ne




ReliefValve Sight

Glass


Valve

LowPressureSwitch

ScrollCompressor


(Optional)


FeelerBulb

HighPressure

Switch

Three phase power supply is avail-able, as an option, on OHS-024, 032 & 040-() units.

Compressor,(belt-driveblowermotor(s)andelectricheat/reheatifapplicable)shallbethreephaseinlieuofstandardsinglephase.Allothercomponents(5/10lbhumidifieranddirectdrivemotor(s))shallbesinglephase,witheachlegofpowersupplybalancedascloselyaspossible.

(Note: Three phase power supply is a standard feature on models OHS-048 and larger units.)

277/1/60 Power Supply(ModelsOHS-012thru-040)

Amainpowerdistributionblockshallbelocatedintheairconditioner'selectricboxforsinglepointpowerconnectiontoa277/1/60powersup-plysource.Allsystemcomponents(motor,heater&humidifier,ifap-plicable)shallberatedforoperationwitha277/1/60powersupply.277Vto208Vmainpowerstep-downtransformersshallnotberequired.

Note-1: Fast delivery orders some-times require that the OHS system be shipped from stock as 208/1/60. In those cases, 277/1/60 applications are provided with a field installed 277 to 208 step-down transformer.

Condensate Pump

ALow-Profilecondensatepumpdesignedforlimitedheightceilingplenuminstallationshallbefactoryprovidedforautomaticremovalofcondensateandhumidifierflushwater(ifapplicable).Thecondensatepumpshallbefieldinstalledasastandard.

AheavydutyAll-Metalcondensatepumpshallbeprovidedforautomaticremovalofcondensateandhumidi-fierflushwater(ifapplicable).Thepumpshallbeconstructedwithacastaluminumreservoirandimpeller;aluminumreservoircoverandimpel-lerchambercover;stainlesssteelfastenersandastainlesssteelmotorshaft.Thecondensatepumpmeetsmostlocalcodesforcertificationasa"plenumrated"pump.Theconden-satepumpshallbefieldinstalledonly.



Op

tion

al Features - G

uid

e Specifi

cation

s


3-13

1to3TonModels:OHS-012/040-HAS,HAR,HAHU,HW,HG&HC

4to10TonModels:OHS-048/120-()AR,AHU,W,G&C

Factory Installed In-PanCondensate Pump

(Not Available w/ Humidifier)

Smoke Detector

Aphoto-electricsmokedetectorshallbefactoryinstalledintheCeilAiRevaporatorsectiononthesuctionsideoftheevaporatorblower.

Thesmokedetectorshallberatedforhighairvelocityapplications,andshallshutdowntheairconditioneruponsensingsmokeinthereturnairstream.

Firestat

Theairconditionershallbeprovidedwithafactorywiredandmountedfirestat.Thefirestatshallshutdowntheairconditioneruponsensingahighreturnairtemperature.

Remote Water DetectorsSingle (one) - Spot Type Detector:

Quantity1(one)remotespottype

water/leakdetectorperCeilAiRA/Cunitshallbefactoryprovidedforremotefieldinstallation.Uponsens-ingawaterleak,thenormallyclosedwaterdetectorcontrolcircuitshallopen,therebyshuttingdowntheairconditioner'swaterproducingopera-tions.

Dual (two) - Spot Type Detectors:Quantity2(two)remotespottypewater/leakdetectorsperCeilAiRA/Cunitshallbefactoryprovidedforremotefieldinstallation.Uponsensingawaterleak,thenormallyclosedwaterdetectorcontrolcircuitshallopen,therebyshuttingdowntheairconditioner'swaterproducingoperations.20 Ft. - Strip/Cable Type Detector:

A20Ft.inlengthremotestrip/cabletypewater/leakdetectorshallbefactoryprovidedforremotefieldinstallation.Inadditiontothe20ft.cable,a24Vpowerwaterdetec-torpowermoduleshallrequirefieldmountingandwiringtofactoryprovidedterminalconnection.Uponsensingawaterleak,thenormallyclosedwaterdetectorcontrolcircuitshallopen,therebyshuttingdowntheairconditioner'swaterproducingoperations.

Compressor Sound Jackets(AirCooled0FOHS-()-AS,andWater/GlycolCooledOnly!)

Eachcompressorshallbeprovidedwithafactoryinstalledacousticalsoundjacket.Eachsoundjacketshallhaveasnapclosuresystemforeaseofremovingandreinstallationduring

Thecondensatepumpshallbespecificallydesignedtooperatewiththehighercondensatetemperaturescausedbytheflushanddraincycleoftheelectrodecanisterhumidifiers.

DualOverflowSafetySwitches:Inadditiontothestandardconden-satepanoverflowsafetyfloat(s),thecondensatepumpshallincludeaninternaloverflowsafetyfloatswitchwhich,whenwiredtotheA/C'sre-motestop/startterminals,shallopentheA/C'scontrolcircuit,therebyshuttingtheA/Cdownintheeventofacondensateoverflow.

Factory Installed - Optional

Low-Profile Condensate PumpTheCeilAiRLow-Profilecondensatepumpcanbefactoryinstalledasanoptiononthefollowingmodels:

OHS-012/040-AS,AHU,AR,W,G&C

Factory Installed Low-ProfileCondensate Pump

In-PanCondensatePumpTheCeilAiRIn-Pancondensatepumpcanbefactoryinstalledasanoptioninthefollowingmodels:


Op

tion

al Features - G

uid

e Specifi

cation

s


3-14

maintenance.EachsoundjacketshallhaveaNoiseReductionCoefficientNRCof85perASTMC-423andaSoundTransmissionLossSTCof11perASTME-90.

Low Entering Condenser Water KitForWater/Glycolsystemsthatrequireenteringcondenserwatertempera-turesfrom65Fto45F,thesystemshallbeprovidedwithafactoryinstalledin-lineliquidrefrigerantreceivertohelpreducethenegativeeffectthelowcondensersourcecanhaveontheevaporator.Acompres-sorcrankcaseheatershallalsobeprovidedstandardwiththisoption.(CompressorSoundJacketsarenotavailablewiththisoptionduetothecrankcaseheater).

Main Power - ElectricNon-Fused Service SwitchThemainpowerserviceswitchshallbetheNEMA3RorNEMA-12non-fusedtype,dependingontheOHSmodelselected.Thedisconnectswitchshallhavealockablehandle.

(Note: Field installed main power service switches shall be the standard option, however, switches can be optionally fac-tory mounted on select CeilAiR systems. Factory mounting of disconnect switches is not available on models OHS-012, 018, 024 & 032-AS incorporating the "Ducted" Evaporator Connection option.)

Refrigerant Lines w/ Quick Disconnects(AHU/RCU-OSystemsOnly!)

Eachrefrigerantcircuitshallbesuppliedwithfactoryassembled,soft-copperrefrigerantlineset50ft.inlengthcompletewithquickdiscon-nectcouplingsandschraederserviceports.Thequickdisconnectcouplesshallbeindustrialgrade,self-sealing,reusabletypecouplings.Suctionlinesshallbeinsulated,liquidlinesshallbeuninsulated.

ENERGY $AVING COOLING OPTIONS

Free-Cooling Option(Water/Glycol Economizer Coil)

AFree-Coolingcycleshallbeprovidedtotakeadvantageoflowambientairtemperatureconditionstoprovidecompressor-lesscooling.

Whenoutdoortemperaturesaresufficientlylow(setpointadjustable),sourcecoolantshallbedivertedfromtheDX-WaterorGlycolCooledrefrigerantcondensertoachilledwater/glycolcoil(free-coolingcoil&controlvalve).Thedrycoolercapac-ityshallbeincreasedbyreversingthetypicaldrycoolerfan(s)cyclingsequenceofoperationtoprovidethemaximumcoolingeffectforthecool-antsolution.Thefree-coolingcoilshallbecloselysizedtomatchthere-frigerantcoolingcapacitytoincreasethenumberofhoursthatthesystemcanoperateinthefree-coolingmode,therebyincreasingtheoperatingsav-ingsoftheinstallation.

Alternate Water Source(Chilled Water by "Day"

and DX-Backup by "Night")

AnAlternateWaterSourcecool-ingcycleshallbeprovidedtoutilizebuildingchilledwatersupplywhenavailableastheprimarycoolingcyclewithDX-AirCooledrefrigerantcool-ingasabackup.

Theairconditionershallhavetwocoolingsystems:

1) Achilledwater/glycolcircuit (AWScoil&controlvalve);

2) AbackupDXcompressorized refrigerantcircuit.

Equ

aliz

erLi

ne


SightGlass

RefrigerantDrier / Strainer

ExpansionValve

ScrollCompressor DX - Cooling

Coil

Alternate WaterSource Cooling Coil

AWSControl

Valve

Remote Liquid Chiller(by others)

Pump(by others)

Alternate WaterSource Aqua-Stat

FeelerBulbHP LP

SolenoidValve

ReliefValve

Receiver

Remote Air CooledCondenser

T

FSFlow

Switch

FloodedHead Pressure Control Valve

Whenchilledwaterisavailable,thesystemshalloperateasachilledwaterunit,withoutthecompressoroperating.Whenthewatertempera-tureistoohigh,orthewaterflowrateisnotsufficient,theaircondi-tionershallautomaticallyswitchtotheDXcompressorizedrefrigerantoperation.



Perform

ance D

ata - Ind

ex

Performance Data - Equipment Schedule Data

4-1

Performance Data Index

DX - Air Cooled

Self-Contained Air Cooled:

1-3Ton,modelsOHS-012/040-AS................................... 4-2/3

Split Air Cooled Remote w/ Condenser:

1-5Ton,modelsOHS-012/060-AR................................... 4-2/3 4-10Ton,modelsOHS-048/120-DAR................................. 4-4

Split Air Cooled Air Handling w/ Condensing Unit:

1-5Ton,modelsOHS-012/060-AHU................................... 4-5 4-10Ton,modelsOHS-048/120-DAHU............................... 4-6

DX - Water Cooled

Self-Contained Water Cooled:

1-5Ton,modelsOHS-012/060-W....................................... 4-7 4-10Ton,modelsOHS-048/120-DW.................................. 4-8

DX - Glycol Cooled

Self-Contained Glycol Cooled:

1-5Ton,modelsOHS-012/060-G........................................ 4-9 4-10Ton,modelsOHS-048/120-DG................................. 4-10

Chilled Water

Chilled Water Air Handlers:

1-3Ton,modelsOHS-012/040-C................................. 4-11/12 4-10Ton,modelsOHS-048/120-C............................... 4-13/14

42FEWTPerformanceData............................................ 4-15 50FEWTPerformanceData............................................ 4-16

MODEL TYPE ...........................................page

DX with Free-Cooling

Self-Contained Glycol Cooled w/ FC:

1-5Ton,modelsOHS-012/060-G-FC........................... 4-17/19 4-10Ton,modelsOHS-048/120-DG-FC....................... 4-20/21

Self-Contained Water Cooled w/ FC:

1-5Ton,modelsOHS-012/060-W-FC........................... 4-22/23 4-10Ton,modelsOHS-048/120-DW-FC...................... 4-24/25

DX with Alternate Water Source

Alternate Water Source:

1-5Ton,modelsOHS-012/060-()-AWS............................ 4-26 4-10Ton,modelsOHS-048/120-D()-AWS......................... 4-27 42F/50FEWTPerformanceData.................................. 4-28


Perform

ance D

ata - Air C

oo

led (1 to

5 ton

Systems)

Air Cooled - 1 to 5 Ton "OHS" (Single Compressor), Self-Contained & Split

4-2

OHS Model 012-AS/AR 018-AS/AR 024-AS/AR 032-AS/AR 040-AS/AR 048-AR 060-ARNET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings)

80FDB/67FWB,50%RH

Total 13,985 19,465 25,740 32,770 35,800 59,970 65,975

Sensible 10,585 15,235 19,470 23,430 27,950 47,685 52,435

75FDB/62.5FWB,50%RH

Total 12,710 18,000 23,600 30,000 32,650 55,010 60,470

Sensible 10,645 15,400 19,025 22,920 27,430 46,960 51,630

72FDB/60FWB,50%RH

Total 12,000 17,160 22,465 28,500 31,050 52,400 57,580

Sensible 10,405 15,100 18,580 22,400 26,690 46,020 50,590

80FDB/65FWB,45%RH

Total 13,425 18,860 24,600 31,320 34,700 57,680 63,350

Sensible 11,840 16,990 20,900 24,905 30,900 52,080 57,325

75FDB/61FWB,45%RH

Total 12,270 17,490 23,030 28,895 32,080 53,415 58,620

Sensible 11,385 16,400 20,500 23,940 29,650 50,250 55,285

72FDB/58.5FWB,45%RH

Total 11,585 16,665 22,000 27,400 30,530 50,875 55,790

Sensible 11,110 16,065 20,060 23,600 28,990 49,180 54,080

Reheat/Heat - Performance Capacities Include Motor Heat, (Optional)

ELECTRIC REHEAT / HEAT - BTU/H (Kw)

@208V 17,135(5.0) 17,135(5.0) 17,135(5.0) 17,425(5.1) 17,955(5.3) 37,350(10.9) 38,900(11.4)

@230V 18,840(5.5) 18,840(5.5) 18,840(5.5) 19,130(5.6) 19,660(5.8) 43,140(12.6) 44,690(13.1)

@460V 17,355(5.1) 17,355(5.1) 17,355(5.1) 17,645(5.2) 18,175(5.3) 37,350(10.9) 38,900(11.4)

@277/480V 18,065(5.3) 18,065(5.3) 18,065(5.3) 18,355(5.4) 18,885(5.5) 38,835(11.4) 40,385(11.8)

HOT GAS REHEAT

BTU/H 11,390 17,030 21,190 25,650 30,920 49,310 54,210

HOT WATER REHEAT / HEAT - Reheat rated @ 180F Entering Water Temperature, EAT = 72F DB

BTU/H 20,690 32,420 34,880 50,360 55,320 97,140 111,220

GPM 1 2 2 3 3 4 5

PressureDrop,ft.wg 0.1 0.3 0.3 0.3 0.3 0.4 0.6

Control Motorized Motorized Motorized Motorized Motorized Motorized Motorized

STEAM REHEAT / HEAT - nominally Reheat rated @ 5 psig Steam, EAT = 72F DB

BTU/H(nominal) 12,000 18,000 24,000 32,000 40,000 48,000 60,000

Condensate(lb/hr) 13 19 25 34 42 50 63


Humidification - Electrode Steam Canister Humidifier with Adjustable Output, (Optional)

Lbs/Hr,(KwInput) 2-5,(1.7) 2-5,(1.7) 2-5,(1.7) 2-5,(1.7) 2-5,(1.7) 4-10,(3.4) 4-10,(3.4)

StdControl Cycling Cycling Cycling Cycling Cycling Cycling Cycling

EvaporatorBlower/Motor-DWDICentrifugal

Horsepower 1/4Hp 1/4Hp 1/4Hp 1/3Hp 1/2Hp 1Hp 1-1/2Hp

[email protected]. [email protected]" [email protected]" [email protected]" 1,[email protected]" 1,[email protected]" 2,[email protected]" 2,[email protected]"

Std.DriveMethod DirectDriven DirectDriven DirectDriven DirectDriven DirectDriven BeltDriven BeltDriven

Continued on next page



Air Cooled - 1 to 5 Ton "OHS" (Single Compressor), Self-Contained & Split

Perform

ance D

ata - Air C

oo

led (1 to

5 ton

Systems)

OHS Model 012-AS/AR 018-AS/AR 024-AS/AR 032-AS/AR 040-AS/AR 048-AR 060-ARNET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings)

Evaporator Coil - Aluminum Fin, Copper Tube

Rows/FaceArea(Ft2) 3/2.1 3/2.1 3/2.1 3/2.8 3/2.8 4/5.0 4/5.0

Compressor - Heat pump duty rated, HCFC Ozone Safe R-22

Type,(Qty.) Recip.,(1) Scroll,(1) Scroll,(1) Scroll,(1) Scroll,(1) Scroll,(1) Scroll,(1)

Watts-Input 1,405 1,614 2,092 2,711 2,842 4,415 4,959

Tot.HeatofRej.(BTU/H) 17,595 24,260 31,480 40,500 43,830 70,080 77,395

Filters - 1" deep throwaway

Nom.Size(in.),(Qty.) 20x20,(1) 20x20,(1) 20x20,(1) 20x20,(1) 20x20,(1) 20x16,(2) 20x16,(2)

Connection Sizes - Copper, (Please refer to CeilAiR IOM Manual for proper interconnecting refrigerant line sizing.)

Refrigerant: (OHS-012/060-()AR only)

LiquidLine,(Qty.) 3/8"OD,(1) 3/8"OD,(1) 3/8"OD,(1) 1/2"OD(1) 1/2"OD(1) 1/2"OD(1) 1/2"OD(1)

HotGasLine,(Qty.) 1/2"OD,(1) 1/2"OD,(1) 5/8"OD,(1) 5/8"OD(1) 7/8"OD(1) 7/8"OD(1) 7/8"OD(1)

CondensateDrain 7/8"OD 7/8"OD 7/8"OD 7/8"OD 7/8"OD 3/4"FPT 3/4"FPT

HumidifierInlet 1/4"OD 1/4"OD 1/4"OD 1/4"OD 1/4"OD 1/4"OD 1/4"OD

Physical Size - (Please refer to Section 6 for detailed dimensional data.)

Approx.Wt.(OHS-()-AS) 210lbs 215lbs 220lbs 255lbs 265lbs N/A N/A

Approx.Wt.(OHS-()-AR) 160lbs 165lbs 170lbs 205lbs 215lbs 370lbs 380lbs

Air Cooled Condenser Data - (Self Contained)OHS Model @ 95F Amb. 012-AS 018-AS 024-AS 032-AS 040-AS 048 060Integral Centrifugal Blower, Air Cooled Condenser Data for Self-Contained Model OHS-( )-AS

Condenser Blower Data

CFM @ e.s.p 750 @ 0.3" 1,400 @ 0.3" 1,400 @ 0.3" 2,000 @ 0.3" 2,000 @ 0.3" N/A N/A

Motor Horsepower 1/3 Hp. 1/2 Hp. 1/2 Hp. 1/2 Hp. 1/2 Hp. N/A N/A

Drive Method Direct Direct Direct Direct Direct N/A N/A

Condenser Coil

Rows/Face Area (ft2) 4 / 2.1 4 / 2.1 4 / 2.1 4 / 2.8 4 / 2.8 N/A N/A

Low Ambient Control

Std. Minimum Op. Amb. 0F 0F 0F 0F 0F N/A N/A

Head Pressure Method MotorSpeed MotorSpeed MotorSpeed MotorSpeed MotorSpeed N/A N/A

Note:

CompressorisintegraltotheOHS-()-ASSelf-ContainedUnit.

PleaserefertotheSATSHeat Rejection Engineering ManualforspecificationandperformancedataonRemoteOutdoorandIndoorAirCooledCondensersusedwithOHS-()-()ARSplitSystems.

4-3


OHS Model ( )-048-DAR ( )-072-DAR ( )-084-DAR ( )-120-DARNET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings)

80FDB/67FWB,50%RH

Total 53,740 73,870 92,065 130,435

Sensible 40,860 62,110 71,070 98,030

75FDB/62.5FWB,50%RH

Total 49,250 67,550 83,980 119,590

Sensible 40,290 61,525 70,840 96,230

72FDB/60FWB,50%RH

Total 46,950 64,275 79,760 113,380

Sensible 39,480 60,215 69,565 94,580

80FDB/65FWB,45%RH

Total 51,610 70,730 87,660 124,890

Sensible 44,310 68,085 79,060 106,480

75FDB/61FWB,45%RH

Total 47,860 65,590 80,770 115,540

Sensible 42,830 64,070 76,215 102,850

72FDB/58.5FWB,45%RH

Total 45,620 62,750 76,660 109,955

Sensible 42,040 61,910 73,710 100,920



@208V/460V 36,810(10.9) 38,900(11.4) 40,510(11.9) 43,580(12.8)

@230V 42,600(12.5) 44,690(13.1) 46,300(13.6) 49,370(14.5)

@480V 38,295(11.2) 40,385(11.8) 41,995(12.3) 45,065(13.2)

HOT GAS REHEAT

BTU/H 21,150 32,300 37,190 50,520


BTU/H 50,360 97,880 99,830 130,500

GPM 3 3 3 10

PressureDrop,ft.wg 0.3 0.3 0.3 2.2

Control Motorized Motorized Motorized Motorized


BTU/H(nominal) 48,000 72,000 90,000 120,000

Condensate(lbs/hr) 50 75 94 125



Lbs/Hr,(KwInput) 4-10,(3.4) 4-15,(5.1) 4-15,(5.1) 4-15,(5.1)

StdControl Cycling Cycling Cycling Cycling

EvaporatorBlower/Motor-DWDICentrifugal-BeltDriven,VariablePitchPulleys

Horsepower 3/4Hp 1-1/2Hp 2Hp 3Hp

[email protected]. 1,[email protected]" 3,[email protected]" 3,[email protected]" 4,[email protected]"

DriveMethod BeltDriven BeltDriven BeltDriven BeltDriven


Rows 3 4 4 4

FaceArea(Ft2) 4.1 6.7 6.7 10


Type,(Qty.) Scroll,(2) Scroll,(2) Scroll,(2) Scroll,(2)

WattsInput(percompressor) 2,054 2,797 3,848 4,959

TotalHeatofRejection,(BTU/H) 63,270 86,645 110,250 153,440


NominalSize(in.),(Qty.) 16x20,(2) 20x20,(2) 20x20,(2) 24x24,(2)


Refrigerant:

LiquidLine,(Qty.) 3/8"OD,(2) 1/2"OD,(2) 1/2"OD,(2) 1/2"OD,(2)

HotGasLine,(Qty.) 5/8"OD,(2) 5/8"OD,(2) 7/8"OD,(2) 7/8"OD,(2)

CondensateDrain,(w/In-PanPump) 3/4"FPT,(1/2"OD) 3/4"FPT,(1/2"OD) 3/4"FPT,(1/2"OD) 3/4"FPT,(1/2"OD)

HumidifierInlet 1/4"OD 1/4"OD 1/4"OD 1/4"OD


Approx.Weight 420lbs 450lbs 510lbs 580lbs

Air Cooled - 4 to 10 Ton "OHS" (Dual Compressors)Perfo

rman

ce Data - A

ir Co

oled

(4 to 10 To

n, D

UA

L Co

mp

ressor)

4-4



Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensers

4-5

Perform

ance D

ata - Air C

oo

led A

HU

/RC

U (1 to

5 ton

Systems)

Air Cooled AHU/RCU - 1 to 5 Ton "OHS"OHS Model 012-AHU 018-AHU 024-AHU 032-AHU 040-AHU 048-AHU 060-AHU

NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings)

80FDB/67FWB, 50% RH

Total 13,985 19,465 25,740 32,940 36,505 59,970 65,975

Sensible 10,585 15,235 19,470 24,595 30,065 47,685 52,435

75FDB/62.5FWB, 50% RH

Total 12,710 18,000 23,600 30,355 33,750 55,010 60,470

Sensible 10,645 15,400 19,025 24,235 29,300 46,960 51,630

72FDB/60FWB, 50% RH

Total 12,000 17,160 22,465 29,035 32,320 52,400 57,580

Sensible 10,405 15,100 18,580 23,680 28,500 46,020 50,590

80FDB/65FWB, 45% RH

Total 13,425 18,860 24,600 31,670 35,120 57,680 63,350

Sensible 11,840 16,990 20,900 27,560 33,385 52,080 57,325

75FDB/61FWB, 45% RH

Total 12,270 17,490 23,030 29,500 32,790 53,415 58,620

Sensible 11,385 16,400 20,500 26,251 31,530 50,250 55,285

72FDB/58.5FWB, 45% RH

Total 11,585 16,665 22,000 28,220 31,410 50,875 55,790

Sensible 11,110 16,065 20,060 25,570 30,525 49,180 54,080



@208V 17,135(5.0) 17,135(5.0) 17,135(5.0) 17,425(5.1) 17,955(5.3) 37,350(10.9) 38,900(11.4)

@230V 18,840(5.5) 18,840(5.5) 18,840(5.5) 19,130(5.6) 19,660(5.8) 43,140(12.6) 44,690(13.1)

@460V 17,355(5.1) 17,355(5.1) 17,355(5.1) 17,645(5.2) 18,175(5.3) 37,350(10.9) 38,900(11.4)

@277/480V 18,065(5.3) 18,065(5.3) 18,065(5.3) 18,355(5.4) 18,885(5.5) 38,835(11.4) 40,385(11.8)


BTU/H 20,690 32,420 34,880 50,360 55,320 97,140 111,220

GPM 1 2 2 3 3 4 5




BTU/H(nominal) 12,000 18,000 24,000 32,000 40,000 48,000 60,000

Condensate(lb/hr) 13 19 25 34 42 50 63


Humidification-ElectrodeSteamCanisterHumidifierwithAdjustableOutput,(Optional)

Lbs/Hr,(KwInput) 2-5,(1.7) 2-5,(1.7) 2-5,(1.7) 2-5,(1.7) 2-5,(1.7) 4-10,(3.4) 4-10,(3.4)


Evaporator Blower / Motor - DWDI Centrifugal




Opt.DriveMethod Belt-Driven Belt-Driven Belt-Driven Belt-Driven Belt-Driven N/A N/A


Rows/FaceArea(Ft2) 3/2.1 3/2.1 3/2.1 3/2.8 3/2.8 4/5.0 4/5.0

Filters-1"deepthrowaway

Nom.Size(in.),(Qty.) 20x20,(1) 20x20,(1) 20x20,(1) 20x20,(1) 20x20,(1) 20x16,(2) 20x16,(2)


Refrigerant:

Suction,(Qty.) 5/8"OD,(1) 3/4"OD,(1) 3/4"OD,(1) 3/4"OD(1) 7/8"OD(1) 7/8"OD(1) 7/8"OD(1)

LiquidLine,(Qty.) 3/8"OD,(1) 3/8"OD,(1) 3/8"OD,(1) 1/2"OD(1) 1/2"OD(1) 1/2"OD(1) 1/2"OD(1)

CondensateDrain 7/8"OD 7/8"OD 7/8"OD 7/8"OD 7/8"OD 3/4"FPT 3/4"FPT

HumidifierInlet 1/4"OD 1/4"OD 1/4"OD 1/4"OD 1/4"OD 1/4"OD 1/4"OD


Approx.Wt. 120lbs 120lbs 120lbs 155lbs 165lbs 270lbs 280lbs


Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensing Units

4-6

Air Cooled DAHU/DRCU - 4 to 10 Ton "OHS" (Dual)

OHS Model ( )-048-DAHU ( )-072-DAHU ( )-084-DAHU ( )-120-DAHU

NET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings)

80FDB/67FWB, 50% RH

Total 53,740 73,870 92,065 130,435

Sensible 40,860 62,110 71,070 98,030

75FDB/62.5FWB, 50% RH

Total 49,250 67,550 83,980 119,590

Sensible 40,290 61,525 70,840 96,230

72FDB/60FWB, 50% RH

Total 46,950 64,275 79,760 113,380

Sensible 39,480 60,215 69,565 94,580

80FDB/65FWB, 45% RH

Total 51,610 70,730 87,660 124,890

Sensible 44,310 68,085 79,060 106,480

75FDB/61FWB, 45% RH

Total 47,860 65,590 80,770 115,540

Sensible 42,830 64,070 76,215 102,850

72FDB/58.5FWB, 45% RH

Total 45,620 62,750 76,660 109,955

Sensible 42,040 61,910 73,710 100,920



@208V/460V 36,810(10.9) 38,900(11.4) 40,510(11.9) 43,580(12.8)

@230V 42,600(12.5) 44,690(13.1) 46,300(13.6) 49,370(14.5)

@480V 38,295(11.2) 40,385(11.8) 41,995(12.3) 45,065(13.2)


BTU/H 50,360 97,880 99,830 130,500

GPM 3 3 3 10

PressureDrop,ft.wg 0.3 0.3 0.3 2.2



BTU/H(nominal) 48,000 72,000 90,000 120,000

Condensate(lbs/hr) 50 75 94 125



Lbs/Hr,(KwInput) 4-10,(3.4) 4-15,(5.1) 4-15,(5.1) 4-15,(5.1)

StdControl Cycling Cycling Cycling Cycling

Evaporator Blower / Motor - DWDI Centrifugal - Belt Driven, Variable Pitch Pulleys

Horsepower 3/4Hp 1-1/2Hp 2Hp 3Hp

[email protected]. 1,[email protected]" 3,[email protected]" 3,[email protected]" 4,[email protected]"

DriveMethod BeltDriven BeltDriven BeltDriven BeltDriven


Rows/FaceArea(Ft2) 3/4.1 4/6.7 4/6.7 4/10.0


NominalSize(in.),(Qty.) 16x20,(2) 20x20,(2) 20x20,(2) 24x24,(2)


Refrigerant:

SuctionLine,(Qty.) 3/4"OD,(2) 7/8"OD,(2) 7/8"OD,(2) 7/8"OD,(2)

LiquidLine,(Qty.) 3/8"OD,(2) 1/2"OD,(2) 1/2"OD,(2) 1/2"OD,(2)

CondensateDrain,(w/In-PanPump) 3/4"FPT,(1/2"OD) 3/4"FPT,(1/2"OD) 3/4"FPT,(1/2"OD) 3/4"FPT,(1/2"OD)

HumidifierInlet 1/4"OD 1/4"OD 1/4"OD 1/4"OD


Approx.Weight 320lbs 350lbs 410lbs 480lbs

Perform

ance D

ata - Air C

oo

led D

AH

U/D

RC

U (4-10 To

n, D

UA

L Co

mp

ressor)



Please refer to the SATS Heat Rejection Engineering Manual for specification and performance data on Remote Outdoor and Indoor Air Cooled Condensing Units

4-7

Perform

ance D

ata - Water C

oo

led (1 to

5 Ton

Systems)

Water Cooled - 1 to 5 Ton "OHS"OHS Model ( )-012-W ( )-018-W ( )-024-W ( )-032-W ( )-040-W ( )-048-W ( )-060-WNET DX COOLING CAPACITY - BTU/H, (includes standard DX evaporator motor heat @ std CFM & e.s.p. ratings)

80FDB/67FWB, 50% RH

Total 16,394 21,125 27,990 35,550 39,115 64,250 70,665

Sensible 11,675 16,000 20,455 24,575 29,500 49,240 54,100

75FDB/62.5FWB, 50% RH

Total 14,850 19,345 25,750 32,700 35,830 58,820 64,690

Sensible 11,340 15,625 20,100 24,265 28,800 48,580 53,445

72FDB/60FWB, 50% RH

Total 14,000 18,380 24,560 31,150 34,109 56,070 61,650

Sensible 11,050 16,400 19,680 23,775 28,093 47,600 52,345

80FDB/65FWB, 45% RH

Total 15,570 20,430 26,840 34,170 37,355 61,635 67,730

Sensible 12,440 17,645 21,825 26,300 31,600 53,560 58,955

75FDB/61FWB, 45% RH

Total 14,380 18,950 24,920 31,600 35,120 57,130 62,760

Sensible 12,250 17,040 21,075 25,360 30,560 51,780 56,975

72FDB/58.5FWB, 45% RH

Total 13,620 18,065 23,685 30,060 33,460 54,460 59,795

Sensible 12,010 16,710 20,700 24,820 30,470 50,820 55,910



@208V 17,135(5.0) 17,135(5.0) 17,135(5.0) 17,425(5.1) 17,955(5.3) 37,350(10.9) 38,900(11.4)

@230V 18,840(5.5) 18,840(5.5) 18,840(5.5) 19,130(5.6) 19,660(5.8) 43,140(12.6) 44,690(13.1)

@460V 17,355(5.1) 17,355(5.1) 17,355(5.1) 17,645(5.2) 18,175(5.3) 37,350(10.9) 38,900(11.4)

@277/480V 18,065(5.3) 18,065(5.3) 18,065(5.3) 18,355(5.4) 18,885(5.5) 38,835(11.4) 40,385(11.8)

HOT GAS REHEAT

BTU/H 12,440 17,690 22,150 27,045 32,425 51,010 56,120


BTU/H 20,690 32,420 34,880 50,360 55,320 97,140 111,220

GPM 1 2 2 3 3 4 5




BTU/H(nominal) 12,000 18,000 24,000 32,000 40,000 48,000 60,000

Condensate(lb/hr) 13 19 25 34 42 50 63



Lbs/Hr,(KwInput) 2-5,(1.7) 2-5,(1.7) 2-5,(1.7) 2-5,(1.7) 2-5,(1.7) 4-10,(3.4) 4-10,(3.4)


Evaporator Blower / Motor - DWDI Centrifugal




Opt.DriveMethod Belt-Driven Belt-Driven Belt-Driven Belt-Driven Belt-Driven N/A N/A


Rows/FaceArea(Ft2) 3/2.1 3/2.1 3/2.1 3/2.8 3/2.8 4/5.0 4/5.0


Type,(Qty.) Recip.,(1) Scroll,(1) Scroll,(1) Scroll,(1) Scroll,(1) Scroll,(1) Scroll,(1)

WattsInput 1,245 1,239 1,633 2,118 2,222 3,451 3,867

Water Cooled Condenser Data - Based on 0% glycol solution

TotHeatofReject. 18,900Btu/h 24,350Btu/h 32,145Btu/h 41,325Btu/h 44,865Btu/h 70,600Btu/h 77,890Btu/h

GPM@85FEWT 3.8GPM 4.9GPM 6.4GPM 8.3GPM 9.0GPM 14.1GPM 15.6GPM

TotalUnitPD(Ft.ofH2O) 10.0Ft. 6.5Ft. 11.0Ft. 11.7Ft. 13.9Ft. 16.5Ft. 22.7Ft.

Type Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial Coaxial

Head Pressure Control

StandardControl-2-way,150psigWaterRegulatingValve,(

ceilair engineering manual

Documents

stulz air technology

ceilairair technology

information technology

worldclass quality

sats designs

addition of sats

dx compressorized systems

quality supplier