RT-PRC023AG-EN (07/14) Packaged Rooftop Air Conditioners .
Product CatalogPackaged Rooftop Air ConditionersPrecedent — Cooling and Gas/Electric3 to 10Tons – 60 HzJuly 2014RT-PRC023AG-EN
IntroductionPackaged Rooftop Air ConditionersTrane customers demand products that provide exceptional reliability, meet stringent performancerequirements, and are competitively priced.Trane delivers with Precedent .Precedent features cutting edge technologies: reliable compressors, Trane engineered ReliaTelcontrols, computer-aided run testing, and Integrated Comfort Systems. So, whether you’re thecontractor, the engineer, or the owner you can be certain Precedent products are built to meet yourneeds.Through the years, Trane has designed and developed the most complete line of Packaged Rooftopproducts available in the market today. Trane was the first to introduce the Micro—microelectronicunit 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, Precedent continues to provide the highest standards in qualityand reliability, comfort, ease of service, and the performance of Trane light commercial products.CopyrightThis document and the information in it are the property ofTrane, and may not be used orreproduced in whole or in part without written permission.Trane reserves the right to revise thispublication at any time, and to make changes to its content without obligation to notify any personof such revision or change.TrademarksAll trademarks referenced in this document are the trademarks of their respective owners.CompleteCoat, Frostat, Integrated Comfort Systems, Precedent, ReliaTel,Tracer,Tracker,Trane andtheTrane logo are trademarks ofTrane in the United States and other countries. BACnet andVariTrac are registered trademarks. All trademarks referenced in this document are the trademarksof their respective owners.Revision HistoryRT-PRC023AG-EN (11 July 2014) Updated Low Leak Economizer Factory and Field Installed OptionRT-PRC023AF-EN (01 February 2014) Added Low Leak Economizer Field Installed Option Multiple Zone VAV Control Verbiage Refresh Electrical Updates - 3Ton -Tables 147, 148, 149RT-PRC023-EN (04 September 2013) Added 575 volt to HIgh Efficiency Units 5GIII update - Cooling and Gas/Electric -T/YHC120 Human Interface - 5 inch ColorTouchscreen 2014Trane All rights reservedRT-PRC023AG-EN
Table of ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Packaged Rooftop Air Conditioners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Other Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Variety of Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Factory Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Factory or Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10101315Other Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Application Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Cooling Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Heating Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Air Delivery Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Dehumidification Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21222223Model Number Description - 3-10 Ton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Model Number Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26General Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Direct Drive - Evaporator Fan Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81Evaporator Fan Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87Fan Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191ReliaTel Controlled Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194Jobsite Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226Factory Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228Factory or Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232RT-PRC023AG-EN3
Features and BenefitsStandard Features 5-year Limited Compressor Warranty 5-year Limited Heat Exchanger Warranty 1-year Limited Parts Warranty Anti-Short CycleTimer (Standard with ReliaTel ) Colored and Numbered Wiring Convertible Airflow Crankcase Heaters1 Direct Drive Plenum Fan2 Easy Access Low VoltageTerminal Board (LTB) Electromechanical or ReliaTel Microprocessor Controls Filters are Standard on all Units Foil-Faced and Edge Captured Insulation High Pressure Control IAQ Dual Sloped, Plastic, Removable, Reversible Drain Pan Liquid Line Refrigerant Drier Low Ambient Cooling to 0 F on Microprocessor Models Low Ambient Cooling to 40 F on Electromechanical Models Low Pressure Control Microchannel Coils3 Multispeed Direct Drive Motors Operating Charge of R-410A Plastic Drain Pan Patent-Pending Hybrid Condenser Coil for easy cleaning Phase Loss Protection Phase Monitor Phase Reversal Protection Phase Balance Protection ProgressiveTubular Aluminized Steel Heat Exchanger Provisions forThrough-the-Base Gas and Condensate Drain Connections Quick Access Panels Quick Adjust Fan Motor Mounting Plate Single Point Power Single Side Service Standardized Components Thermal Expansion Valve123Crankcase heaters are optional on (T,Y)SC (036, 048, 060, 072, 090, 102, 120); standard on (T,Y)HC (036, 048, 060, 072, 092, 102, 120)Standard on: (T,Y)SC120F, (T,Y)HC092,102F, (T,Y)HC120EThe microchannel type condenser coil is standard for T/YSC(072,090,092,102,120)F and T/YHC(048,060,072,092,102)F models. Themicrochannel type condenser coil is not offered on the T/YHC(048,060)F dehumidification model.4RT-PRC023AG-EN
Features and Benefits Trane built Scroll CompressorsOptions1Factory Installed Options Belt Drive Motors2 (Three-phase) Black Epoxy Pre-Coated Coils3 CO2 Sensor (wiring only) CompleteCoat Condenser Coil Condensate Overflow Switch Crankcase Heaters Dehumidification Option Fault Detection & Diagnostics (FDD); Meets CATitle 24 Requirements Hinged Access Doors Human Interface - 5 inch ColorTouchscreen Multiple Zone VAV (Variable Air Volume) Novar Return Air Sensor Novar Unit Controls Powered or Unpowered Convenience Outlet Single Zone Variable Air Volume (SZVAV) Stainless Steel Drain Pan Stainless Steel Heat Exchanger with 10-year warranty Supply, Return or Plenum Air Smoke Detector Through-the-Base Electrical Access Multi-Speed Indoor Fan System Through-the-Base Electrical with Circuit Breaker Through-the-Base Electrical with Disconnect Switch 2” MERV 8 Filters or 2” MERV 13 Filters with Filter RemovalToolFactory or Field Installed Options1 Barometric Relief Clogged Filter/Fan Failure Switch Demand Control Ventilation Discharge AirTemperature Sensing Kit Economizer: Standard and Low Leak Electric Heaters Frostat LonTalk Communications Interface (LCI) BACnet Communications Interface (BCI)Refer to Model Number Description for option availability.2 Option on 3-5 Ton High Efficiency Units3 Not available on Microchannel coils.RT-PRC023AG-EN5
Features and Benefits Reference or Comparative Enthalpy Tool-less Hail Guards Trane Communications Interface (TCI)Field Installed Options CO2 Sensor1 DualThermistor Remote Zone Sensor Economizer: Low Leak High Altitude Kit High Static Drive Humidity Sensor/Humidistat 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 Wireless Zone Sensor Zone SensorOther Benefits Cabinet design ensures water integrity Ease of Service, Installation and Maintenance Mixed model build enables “fastest in the industry” ship cycle times Outstanding Airflow Distribution ReliaTel Controls Unmatched Product Support is one of our finest assets. Trane Sales Representatives are aSupport Group that can assist you with: Product Application Service Training Special Applications Specifications Computer Programs and much more16CO2 sensor always field installed; associated with demand control ventilationRT-PRC023AG-EN
Features and BenefitsStandard FeaturesAnti-Short Cycle Timer (Standard with ReliaTel)Provides a 3 minute minimum “ON” time and 3 minute “OFF” time for compressors to enhancecompressor reliability by assuring proper oil return.Direct Drive MotorsFor additional static requirements, single-phase units offer multi-speed, direct drive motors. All 10ton units and 7½-8½ high efficiency units offer variable speed direct drive motors.Colored And Numbered WiringSave time and money tracing wires and diagnosing the unit.CompressorsCondenser CoilPrecedent contains thebest compressortechnology available toachieve the highestpossible performance.Dual compressors areoutstanding for humiditycontrol, light load coolingconditions and systemback-up applications. Dualcompressors are available on 7½ to 10 tonmodels and allow for efficient cooling utilizing3-stages of compressor operation (highefficiency models only).Precedent boasts a patent-pending 1 1 1condenser coil, permanently gapped for easycleaning.Microchannel Condenser CoilsDue to flat streamlined tubes with small ports, andmetallurgical tube-to-fin bond, microchannel coil hasbetter heat transfer performance. Microchannelcondenser coil can reduce system refrigerant charge byup to 50% because of smaller internal volume, whichleads to better compressor reliability. Compact allaluminum microchannel coils also help to reduce the unitweight.These all aluminum coils are recyclable. Galvaniccorrosion is also minimized due to all aluminumconstruction. Strong aluminum brazed structureprovides better fin protection. In addition, flatstreamlined tubes also make microchannel coils moredust resistant and easier to clean.Controls – ReliaTel or ElectromechanicalReliaTel microprocessor controls provide unit control for heating, cooling and ventilating utilizinginput from sensors that measure indoor and outdoor temperature and other zone sensors. ReliaTelalso provides outputs for building automation systems and expanded diagnostics. For a completelist of ReliaTel offerings, refer to the “Other Benefits” section within the Features and Benefitssection of this catalog.For the simpler job that does not require a building automation system, or expanded diagnosticscapabilities, Precedent offers electromechanical controls.This 24-volt control includes the controltransformer and contactor pressure lugs for power wiring.RT-PRC023AG-EN7
Features and BenefitsConvertible UnitsThe units ship in a downflow configuration.They can be easily converted to horizontal bysimply moving two panels.Units come complete with horizontal ductflanges so the contractor doesn’t have to fieldfabricate them.These duct flanges are a timeand cost saver.CoolingStandard or High Efficiency cooling available.Crankcase Heaters1These band heaters provide improved compressor reliability by warming the oil to preventmigration during off-cycles or low ambient conditions.Easy Access Low Voltage Terminal BoardFoil Faced InsulationAll panels in theevaporator sectionof the unit havecleanable foil-facedinsulation. All edgesare either capturedor sealed to ensureno insulation fibersget into theairstream.Precedent’s Low VoltageTerminal Board is externalto the electrical controlcabinet. It is extremelyeasy to locate and attachthe thermostat wire andtest operation of all unitfunctions.This is anothercost and time savinginstallation feature.Heat ExchangerThe compact cabinet features a progressive tubular heat exchanger in low, medium and high heatcapacities.The heat exchanger is fabricated using stainless steel burners and corrosion-resistant aluminizedsteel tubes as standard on all models. It has an induced draft blower to pull the gas mixture throughthe burner tubes.The heater has a direct spark ignition system which doubles as a safety deviceto prove the flame.Gas/Electric Precedent models exceed all California seasonal efficiency requirements.They alsoperform better than required to meet the California NOx emission requirements.High Pressure ControlAll units include High Pressure Control as standard.IAQ Dual Sloped, Plastic, Removable,Reversible Drain PansEvery Precedent unit has a plastic, removable,dual-sloped drain pan that’s easy to clean andreversible to allow installation of drain trap oneither side of the unit.18Crankcase heaters are optional on (T,Y)SC (036, 048, 060, 072, 090, 102, 120); standard on (T,Y)HC (036, 048, 060, 072, 092, 102, 120)RT-PRC023AG-EN
Features and BenefitsLow Ambient CoolingAll Precedent microprocessor units have cooling capabilities down to 0 F as standard.Electromechanical models have cooling capabilities to 40 F as built, or to 0 F by adding the optionallow ambient control (Frostat ).Low Voltage ConnectionsThe wiring of the low voltage connections to the unit andthe zone sensors is as simple as 1-1, 2-2, and 3-3.Thissimplified system makes it easy for the installer to wire.Phase Monitoring ProtectionPrecedent units with 3-phase power are equipped with phase monitoring protection as standard.These devices protect motors and compressors against problems caused by phase loss, phaseimbalance and phase reversal indication.Plenum Fan1The following units are equipped with a direct drive plenum fan design (all 10 ton units and 7½8½ ton high efficiency units). Plenum fan design includes a backward-curved fan wheel along withan external rotor direct drive variable speed indoor motor. All plenum fan designs have a variablespeed adjustment potentiometer located in the control box.Quick-Access PanelsRemove two screws for access to the standardized internal components and wiring.Single Point PowerA single electrical connection powers the unit.Single Side ServiceSingle side service is standard on all units.Standardized ComponentsComponents are placed in the same location on all Precedent units.Due to standardized components throughout the Precedent line, contractors/owners can stockfewer parts.Thermal Expansion ValveThis feature is standard on all units.Through-the-Base CondensateEvery unit includes provisions for through-the-base condensate drain connections.This allows thedrain to be connected through the roof curb instead of a roof penetration.1RT-PRC023AG-ENStandard on: (T,Y)SC120F, (T,Y)HC092, 102F, (T/Y)HC120E9
Features and BenefitsVariety of OptionsFactory Installed Options1Black Epoxy Pre-Coated Coils2The pre-coated coils are an economical option for protection in mildly corrosive environments.CO2 Sensor WiringThis unit wiring for field installed C02 sensors. Factory-installed C02 sensor wiring saves time andensures proper unit connections for the field installed C02 sensor kits.CompleteCoat Condenser CoilThese coils provide excellent corrosion resistance as well as uniformity of coverage and coatingthickness.This option is available for both fin-tube and microchannel condenser coils.Condensate Overflow SwitchA condensate overflow switch is available to shut the unit down in the event that the condensatedrain line becomes clogged.This option protects the unit from water overflowing from the drainpan and entering the base of the units.Fault Detection & Diagnostics (FDD)This offering meets the mandatory requirement of CATitle 24 of fully configurable diagnosticsallowing fault history and reading fault codes at the unit.This option provides detection of thefollowing faults: Air temperature sensor failure/fault and notification of acceptable economizermode.The FDD system shall be certified by the Energy Commission as meeting the requirements.High Efficiency FiltrationPrecedent units offer a variety of high efficiency filtration options. MERV 8 and MERV 13 filtersprovide additional filtration beyond the capabilities of typical 2” throwaway filters. Also, whenMERV 8 or MERV 13 filters are ordered, units come equipped with a filter removal tool.Human Interface - 5 Inch Color TouchscreenThe 5 inch ColorTouchscreen Human Interface provides an intuitive user interface to the rooftopunit that speeds up unit commissioning, shortens unit troubleshooting times, and enhancespreventative maintenance measures.The human interface includes several features. Data trending capabilities by means oftime series graphs Historical alarm messages Real-time sensor measurements On board system setpoints USB port that enables the downloadingof component runtime information aswell as trended historical sensor data Customized reportsNote: Refer to RT-SVX49*-EN foradditional information.1Refer to Model Number Description for option availability.2 Not available on Microchannel condenser coils.10RT-PRC023AG-EN
Features and BenefitsNovar Unit ControlsNovar 3051 and 2024 are available for Precedent Gas and Electric Heat models.Belt Drive Motors (Three-phase)For additional static requirements,Precedent 3-5 ton units offer an optionalbelt drive motor to meet a wide range ofairflow needs.Dehumidification (Hot Gas Reheat) OptionThis option allows for increased outdoorair ventilation. It reduces humidity levelswhile increasing comfort level in the airspace. Cooling can operate without ademand for dehumidification.The hot gasreheat coil is designed to deliver maximumreheat temperatures.Disconnect Switch (Available on units equipped with Through-the-BaseElectrical)Factory installed 3-pole, molded
Packaged RooftopAir Conditioners Precedent — Cooling and Gas/Electric 3to10Tons–60Hz July 2014 RT-PRC023AG-EN . and are competitively priced.Trane delivers with Precedent . Precedent features cutting edge technologies: reliable compressors, Trane engineered ReliaTel . † Manual Outside Air Damper † Motorized Outside Air Dampers .
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