Trane Ysc Rooftop Unit
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Trane Ysc Rooftop Unit

Rtprc025en 072806
Preface and Warnings and Cautions 2006 American Standard Inc.All rights reservedRT-PRC025-ENPackaged Rooftop Air Conditioners Through the years, Trane has designed and developed the most complete line of Packaged Rooftop products available in the market today.Trane was the first to introduce the Micro—microelectronic unit controls—and has continued to improve and revolutionize this design concept.Electromechanical controls are available for simpler applications, and for the more sophisticated, ReliaTel™ microprocessor controls.The ReliaTel control platform offers the same great features and functionality as the original Micro, with additional benefits for greater application flexibility.With its sleek, compact cabinet, rounded corners and beveled top Precedent continues to provide the highest standards in quality and reliability, comfort, ease of service, and the performance of Trane light commercial products.Trane customers demand products that provide exceptional reliability, meet stringent performance requirements, and are competitively priced.Trane delivers with Precedent.Precedent features cutting edge technologies: reliable compressors, Trane engineered ReliaTel controls, computer-aided run Comfort™ Systems.

So, whether you’re the contractor, the engineer, or the owner you can be certain Precedent Products are built to meet your needs.It’s Hard To Stop A Trane.Packaged CoolingPackaged Features1” throwaway filters provided on 3-5 ton units2” throwaway filters provided on 6-10 ton units5-year Limited Compressor Warranty5-year Limited Heat Limited Parts WarrantyAnti-Short Cycle Timer (Standard with ReliaTel™)Belt Drive Motors (6-10 tons)Colored and Numbered WiringConvertible AirflowDirect Drive Motors (3-5 tons)Easy Access Low Voltage Terminal Board (LTB)Electromechanical or ReliaTel Foil-Faced and Edge Captured InsulationIAQ Dual Sloped and Removable Drain PansLiquid Line Refrigerant DrierLow Ambient Cooling to 0F on Low Ambient Cooling to 40F on Electromechanical ModelsOperating Charge of R-22Patented Hybrid Condenser Coil for easy cleaningProgressive Tubular Aluminized Steel Heat ExchangerProvisions for Through-the-Base Gas and Condensate Drain ConnectionsQuick Access PanelsQuick Adjust Fan Motor Mounting PlateSingle Point PowerSingle Side ServiceStandardized ComponentsTrane built Scroll Compressors on all 3-10 ton units except 3 ton Standard Efficiency Model (Reciprocating Compressor)Factory Installed OptionsBelt Drive Motors (3-5 tons)Black Epoxy Pre-Coated CoilsCompleteCoat™ Condenser CoilDehumidification OptionHigh Pressure CutoutHinged Access DoorsNovar Return Air SensorNovar Unit ControlsPhase MonitorPowered or Unpowered Convenience OutletStainless Steel Heat Exchanger with 10-year warrantySupply and/or Return Air Smoke DetectorThermal Expansion ValveThrough the Base Electrical

Through the Base Electrical with Circuit BreakerThrough the Base Electrical with Disconnect Switch2” Pleated FiltersFactory or Field Installed OptionsBarometric ReliefClogged Filter/Fan Failure Switch Crankcase HeatersDischarge Air Sensing Kit Economizer Electric HeatersFrostatLonTalk Communications Interface (LCI)Oversized Motors Reference or Comparative EnthalpyTool-less Hail GuardsTrane Communications Interface Field Installed OptionsCO SensingDigital Display Zone SensorDual Thermistor Remote Zone SensorHigh Altitude Kit High Static DriveHumidity SensorLP Conversion KitManual Outside Air DamperMotorized Outside Air DampersPowered ExhaustQuick Adapt CurbsQuick Start KitRemote Potentiometer Roof Curb Thermostat Ventilation Override AccessoryZone Sensor*Refer to Model Number Description for option availability.Cabinet design ensures water integrityEase of Service, Installation and MaintenanceMixed model build enables “fastest in the industry” ship Outstanding Airflow Distribution ReliaTel Controls Unmatched Product Support is one of our finest assets.Trane Sales Representatives are a Support Group that can assist –Product –Application –Service –Training –Special Applications –Specifications –Computer Programs and much moreFeatures and BenefitsRT-PRC025-ENStandard FeaturesAnti-Short Cycle Timer (Standard with ReliaTel)Provides a

3 minute minimum “ON” time and 3 minute “OFF” time for compressors to enhance compressor reliability by assuring proper oil return.Colored And Numbered WiringSave time and money tracing wires and diagnosing the unit.CompressorsPrecedent contains the best technology available to achieve the highest possible performance.Our includes Trane built ClimaTuffreciprocating and scrolls.Condenser CoilPrecedent boasts a patent-pending 1+1+1 condenser coil, permanently gapped for easy cleaning.Controls – ReliaTel or ElectromechanicalReliaTel microprocessor controls provide unit control for heating, cooling and ventilating utilizing input from sensors that measure indoor and outdoor temperature and other zone sensors.ReliaTel also provides outputs for building automation ed diagnostics.For a complete list of ReliaTel offerings, refer to the “Other Benefits” section within the Features and Benefits section of this catalog.For the simpler job that does not require a building automation system, or expanded diagnostics capabilities, Precedent offers electromechanical controls.This 24-volt control includes the control transformer and contactor pressure lugs for power wiring.Conver
Ysc
Packaged Gas/ElectricRooftop UnitsPrecedent™3 - 10 Tons — 60 HzRT-PRC006-ENFebruary ...The same Tranequality...

with added flexibility.Precedent is a flexible line of packagedunits that covers a wide variety ofElectromechanical controls are availablemore sophisticated, Reliatel™controls, Precedent offers many otheroutstanding features and option choices.corners and beveled top, it may just bepackaged unit on the planet.And, ofcourse, Precedent carries the Tranereputation for excellence, quality, andreliability.From simple applications, to the mostcomplex, Precedent has the and BenefitsApplication ConsiderationsSelection ProcedureModel Number DescriptionGeneral DataPerformance DataCooling PerformanceFan PerformanceHeat PerformanceControlsElectric PowerDimension and WeightsMechanical andBenefitscorners takes up less room and is lesscostly to ship.

The beveled and ribbeddesigned to prevent water from pooling.Single Point PowerA single electrical connection powers theCompressorsPrecedent™ contains the bestcompressor technology available toachieve the highest possibleincludes Trane built ClimatuffEasy Access Panelspossible water entry points.Low Ambient CoolingAll Precedent microprocessor units havestandard.Electromechanical modelsambient control (Frostat).For added water integrity, Precedent has" lip around the unit’swater from blowing into the ductwork.Sloped Drain PansEvery Precedent unit has a non-corrosive, removable, double-slopeddrain pan that’s easy to clean andreversible to allow installation of drainThrough the Base CondensateEvery unit includes provisions forconnections.

This allows the drain toFoil-Faced Insulationinsulation.All edges are eithercaptured or sealed to ensure no fibersget into the airstream.Convertible Unitsconfiguration.They can be easilyconverted to horizontal by simplymoving two panels.Units come complete with horizontalduct flanges so the contractor doesn’thave to field fabricate them.Theseduct flanges are a time and cost saver.Easy Access PanelsRemove two screws for access to thestandardized internal components andEasy-Adjust Idler ArmWith the Easy-Adjust Idler Arm, the beltand sheaves on belt drive units can bequickly adjusted without moving themounted fan motor.The result is a majorsavings in time and money.Patented Condenser CoilPrecedent boasts a patented 1+1+1Hybrid coil, permanently gapped forColored And Numbered WiringYou save time and money tracing wires5RT-PRC006-ENFeatures andBenefits?Only two roof curbs for the 3-10 tonPrecedent line...simplifies curbStandard or High Efficiency Cooling.Electromechanical or ReliaTelLow, medium or high gas heat?Airflow is outstanding.The Precedentcan replace an older machine with oldductwork and, in many cases, improvecomfort through better air distribution.?Belt or direct drive —standard oroversized supply fan motors meet a?Precedent offers ultimate flexibility.packaged at the factory
trane ysc rooftop unit
Rt-prc025-en (04/06) Packaged Cooling And Gas/electric Rooftop ...
Packaged Rooftop Air Conditioners ... first to introduce the Micro—microelect ronic unit controls—and has continued ... YSC units with gas heat: Fuel- natural gas. (trane.com)
Packaged Gas/electric Rooftop Units - Aire Acondicionado ...
commercial rooftop market. Designed with input from field contractors and ... reviewed with the local Trane sales personnel. Unit Pitch These units have reversible sloped (mgasociados.com)
Packaged Gas/electric Rooftop Units
with the local Trane sales personnel. Unit Pitch These units have reversible sloped ... ROOFTOP UNIT ZONE SENSOR OR THERMOSTAT Typical Number Of Wires Zone … (trane.com)
.Units are builtto order in our standard “shortest inStandardized Componentslocation on all Precedent™ units.Familiarize yourself with one PrecedentPrecedent.Easy Access Low Voltage Terminal BoardPrecedent’s Low Voltage Terminal Boardoperation of all unit functions.

This isLow Voltage Connectionsconnections to the unit and the zonesensors is as simple as 1-1, 2-2, and 3-3.This simplified system makes it easy forPrecedent units.Progressive Tubular Heat Exchangerheat exchanger in low, medium and highThe heat exchanger is fabricated usingstainless steel burners and corrosion-resistant aluminized steel tubes asdraft blower to pull the gas mixturethrough the burner tubes.

The heaterhas a direct spark ignition system whichdoubles as a safety device to prove theGas electric Precedent models exceed allCalifornia seasonal efficiencyrequirements.

They also perform betterRT-PRC006-ENFeatures andBenefitsMicro ControlsSeveral years ago, Trane was the first tothe Light Commercial Market.Thatexperience, has provided the technologyfor Trane’s second-generation ReliaTel™ReliaTel Micro:?Provides unit control for heating,input from sensors that measure?Improves quality and reliability ?Prevents the unit from short cycling,considerably improving compressor?Ensures that the compressor will runfor a specific amount of time, whichallows oil to return for betterthe compressor.?Reduces the number of components?Eliminates the need for field-installedcomponents with its built-in anti-short-cycle timer, time delay relay andminimum ‘’on’’ time controls.These?Requires no special tools to run thePrecedent unit through its pacesbetween Test 1 and Test 2 terminals onthe Low Voltage Terminal Board andthe unit will walk through itsoperational steps.The unitzone sensor after stepping through thejumper is left on the unit.?As long as the unit has power and theLED is lit, the Micro is operational.Thefunctioning properly.?Features expanded diagnosticcapabilities when used with Trane’sIntegrated ComfortSystems.?As an energy benefit, softens ; by staging on fans,compressors and heaters.?The Intelligent Fallback or Adaptiveoccupant.

If a component goes astray,?Intelligent Anticipation is a standardfeature of the Micro.Functioningconstantly, the Micro and zone sensorswork together in harmony, to providetight comfort control.Precedent offers electromechanicalcontrols.This 24-volt control includes7RT-PRC006-ENFeatures andBenefitsFactory-installed Optionsair ventilation.It reduces humidity levelswhile increasing comfort level in the airspace.

Cooling can operate without ademand for dehumidification.The hotgas reheat coil is designed to deliverpivot to allow for easy access cleaning.Hinged Access Doorsfilter, fan/heat, and reduce the potential roofThrough the Base Utility AccessPhase monitor shall provide 100%that provides an ON or FAULT indicator.that’s not working.The field installationcharges for these valuable feedbackmak
Rtprc017en r4
RT-PRC017-ENFebruary 2004RT-PRC017-ENPrecedent ...The same Tranequality...

with added flexibility.course, Precedent carries the Tranereputation for excellence, quality, andreliability.

It’s hard to stop a TraneIntroductionFeatures and BenefitsApplication ConsiderationsSelection ProcedureModel Number DescriptionGeneral DataPerformance DataZone ControlsElectrical DataJobsite ConnectionDimensional DataWeightsMechanical Trane built ClimatuffFor added water integrity, Precedent hasunit’s downflow supply and return todrain pan that’s easy to clean andConvertible Units?The units ship in a downflow?Units come complete with horizontalduct flanges so the contractor doesn’tduct flanges are a time and cost saver.without moving the mounted fan motor.money.You save time and money tracing wiresRT-PRC017-ENEasy Access Low Voltage TerminalPrecedent’s Low Voltage Terminal BoardLow Voltage ConnectionsProgressive Tubular Heat Exchangerheat exchanger in low, medium and high?Only two roof curbs for the 5-10 tonReliaTel microprocessor controls to?Airflow is outstanding.The Precedent?Belt drive —standard or oversized?Precedent offers ultimate flexibility.packaged at the factory.Units are builtRT-PRC017-ENSeveral years ago, Trane was the first tofor Trane’s second-generation ReliaTelReliaTel Micro:?Provides unit control for heating,?Improves quality and reliability ?Prevents the unit from short cycling,?Ensures that the compressor will runthe compressor.?Reduces the number of components?Eliminates the need for field-installedcycle timer, time delay relay andminimum ‘’on’’ time controls.

These?Requires no special tools to run thebetween Test 1 and Test 2 terminals onthe Low Voltage Terminal Board and?As long as the unit has power and thefunctioning properly.?Features expanded diagnosticcapabilities when used with Trane’s?As an energy benefit, softens ; by staging on fans,?The Intelligent Fallback or Adaptiveoccupant.If a component goes astray,?Intelligent Anticipation is a standardconstantly, the Micro and zone sensorswork together in harmony, to OptionsHinged Access Doorsfilter, fan/heat, and compressor/controlPhase monitor shall provide 100%that provides an ON or FAULT indicator.that’s not working.

The field installationmake such features a good investment.Available factory or field-installed.Thismodule, when applied with ReliaTeleasily interfaces with Trane’s Integrated—0 - 50% Manual or Motorized—Discharge Air Sensor—Hail Protection Quality Coil Guards—Wide array of Zone Sensors and—Liquid Propane Conversion Kits—Factory built Roof CurbTrane Sales Representatives are Programs and much morePrecedent…The same Tranequality…with added Trane’s changeover VAV Systemserved by VariTrac.?We perform a 100% coil leak test at thefactory.

The evaporator and condenser?All parts are inspected at the point offinal assembly.Sub-standard parts areidentified and rejected immediately.?The requirement for cycle testing oftest requirments.

Trane requires the?Every unit receives a 100% unit run testmake sure it lives up to rigorous TraneWe test designs at our factory not onQuality And Reliability Testing?All Precedentwater integrity.?Actual shipping tests were performed? Factory shake and drop tests were?Rigging tests include lifting a unit intoVariTracRT-PRC017-ENwith aluminized steel.To preventcondensation within the heat exchanger,do not exceed 50% outside air.Condensate Trapefficiency.

Actual clearances whichwith the local Trane sales personnel.-18C (0F).

Contact your local TraneECONOMIZING OPERATION IS SYSTEMRELATED.

PRESSURE DROP OF 1—Calculate the building’s totalconditions.Use the Trane calculationa.Electrical Characteristics: 380-415/50/3b.Summer Design Conditions: Enteringc.Total Cooling Load: 16.5 kWd.Sensible Cooling Load: 11.8 kWe.Airflow: 3400 mf.Downflow ConfigurationStep 2—Size the equipment using TableTable PD-1 shows that a YSC060AD hasWB air entering the evaporator.the notes in Table PD-8:specified by the engineer, Table PD-8Net Total Cooling =14.4 kW - 0.97 = 13.4 kW.—Calculate the building heatingload using the Trane calculation form or—Size the system heatinga.Total heating load of 17.6 kWb.3400 mc.Fuel - Natural gasTable PD-32.The output capacities ofrespectively.The high heat model withcalculated to be 150 Pa.Enter Table PD-motor will give the desired airflow.RT-PRC017-ENStep 1—Calculate the building’s totalconditions.Use the Trane calculationa.Electrical Characteristics: 380-415/50/3b.Summer Design Conditions: Enteringc.Total Cooling Load: 58 MBhd.Sensible Cooling Load: 42 MBhe.Airflow: 2000 cfm External Staticf.Downflow ConfigurationStep 2—Size the equipment using TableTable PD-1a shows that a YSC060AD hasWB air entering the evaporator.the notes in Table PD-8a:inches, specified by the engineer, TableNet Total Cooling =—Calculate the building heatingload using the Trane calculation form or—Size the system heatinga.Total heating load of 70.0 MBhb.2000 cfmc.Fuel - Natural gasMBh input models shown in Table PD-respectively.The high heat model withcalculated to be 0.6 inches of water.EnterTable PD-8a for a YSC060AD*H at 2000airflow.RT-PRC017-ENY=DX Cooling, Gas HeatS=Standard EfficiencyDigit 3 - 8 - Unit 10 - Heating CapacityL=LowH=HighDigit 11 - Minor Design SequenceA=First AssignedDigit 14 - Fresh Air Selection0=No Fresh AirA=Manual Outside Air Damper 0-50%B=Motorized Outside Air Damper 0-50%C=Economizer, Dry Bulb 0-100%D=Economizer, Dry Bulb 0-100%E=Economizer, Reference Enthalpy0-100% without Barometric ReliefF=Economizer, Reference Enthalpy0-100% with Barometric ReliefG=Economizer, Comparative Enthalpy0-100% without Barometric ReliefH=Economizer, Comparative Enthalpy0-100% with Barometric ReliefDigit 15 - Supply Fan/Drive Type/Motor0=Standard Drive1=Oversized
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