Air-Cooled Series R Rotary Liquid Chiller - Climas
Air-Cooled Series RRotary Liquid Chiller Model RTAC140 to 500Tons (60 Hz)140 to 400Tons (50 Hz)Built For the Industrial and Commercial MarketsNovember 2006RLC-PRC006-EN
IntroductionYou Figure 1. Cutaway of RTAC air-cooled chillerLike its chillers,Trane wants itsrelationships with customers to last.Traneis interested in maintaining long term,loyal relationships.This perspectivemeans the point in time that a customerpurchases a chiller is the beginning of arelationship, not the end.Your business isimportant, but your satisfaction isparamount.4Designed by Customers .1Trane’s RTAC was designed with the enduser’s requirements in mind. Reliability,sound, efficiency and physical size wereprimary design concerns with this latestgeneration machine. New technologieswere applied to literally every majorcomponent.The result is an unparalleledengineering achievement in chiller designand manufacturing.253What’s NewThe RTAC offers the same high reliabilityof Trane’s previous air-cooled helicalrotary design coupled with loweredsound levels, increased energy efficiency,reduced physical footprint due to itsadvanced design, low speed/direct drivecompressor and proven Series Rperformance.Some of the major advantages of theModel RTAC are: Lower sound levels Higher energy efficiency Smaller physical footprint HFC-134a optimized designThe Series R Model RTAC is an industrialgrade design built for both the industrialand commercial markets. It is ideal forschools, hospitals, retailers, officebuildings, Internet service providers andmanufacturing facilities. 2004 American Standard Inc. All rights reserved.5561. Flooded Style Evaporator2. Trane Helical-Rotary Compressor3. Oil Separator4. Low Sound Condenser Fans5. Factory Installed andTested UnitControls and Starter6. Smaller Physical FootprintRLC-PRC006-EN
ContentsIntroductionFeatures and Benefits24World Class Energy EfficiencySimple InstallationOptionsControls8Application Considerations12Model Number Description18General Data19Selection Procedure23Performance Data24Full LoadPart LoadAdjustment FactorsElectrical Data and Connection38Wire SizeTypical Wiring DiagramField LayoutRLC-PRC006-ENDimensions64Weights73Mechanical Specifications773
Features andBenefitsTable 1. RTAC efficiency vs Ashrae 90.1RTAC - Exceeding the Efficiency 0500ASHRAE 90.19.69.69.69.69.69.69.69.69.69.69.69.69.6Full Load Efficiency (EER*)Standard igh 10.1n/an/aASHRAE .410.4Part Load Efficiency (EER*)Standard 14.614.714.9High 14.5n/an/aCOP EER/3.414.Efficiencies given for 60 Hz unitsASHRAE Standard 90.1 andRTAC World Class EnergyEfficiency The importance of energy efficiencycannot be understated. Fortunately,ASHRAE has created a guidelineemphasizing its importance. Nonetheless,energy is often dismissed as anoperational cost over which the ownerhas little control.That perception results inmissed opportunities for energyefficiency, reduced utility bills, and higherprofits. Lower utility bills directly affectprofitability. Every dollar saved in energygoes directly to the bottom line.Trane’sRTAC is one way to maximize yourprofits.4ASHRAE Standard 90.1 & ExecutiveOrder - New technology applied to thedesign, controls, and manufacturing havecreated excellent efficiency levels in theRTAC that are helping to push industryminimums to new heights. AllTrane aircooled chillers meet the new efficiencylevels mandated by ASHRAE Standard90.1.This new standard requires higherefficiencies than past technologies candeliver. The US Federal Government hasadopted standard 90.1 and, in somecases, requires even higher efficiencies.Federal Executive Order mandatesenergy consuming devices procuredmust be in the top 25% of their class. Inthe case of chillers, that product standardis ASHRAE 90.1.Trane’s RTAC meets andexceeds the efficiency requirements of90.1, while the high efficiency RTAC canmeet the “stretch goals” of ExecutiveOrder.Precise Capacity Control. Trane’spatented unloading system allows thecompressor to modulate infinitely andexactly match building loads. At the sametime chilled water temperatures will bemaintained within /- 1/2ºF [0.28 C] ofsetpoint. Reciprocating and screw chillerswith stepped capacity control do well tomaintain chilled water temperatureswithin 2ºF [1.1 C] of setpoint. Steppedcontrol also results in overcooling yourspace because rarely does the capacityof the machine match the building load.The result can be 10% higher energy bills.Trane’s RTAC optimizes the part loadperformance of your machine for energyefficiency, precise control for processapplications, and your personal comfortregardless of the weather outside.RLC-PRC006-EN
Features andBenefitsFigure 2. Cutaway of a compressorExcellent Reliability A buildings environment is expected tobe comfortable. When it is, no one says aword. If it’s not that’s a different story.The same is true with chillers. No oneever talks about chillers, yet alonecompressors, until they fail, and tenantsare uncomfortable and productivity islost.Trane’s helical rotary compressorshave been designed and built to stayrunning when you need them.Fewer moving parts. Trane’s helical rotarycompressors have only two majorrotating parts: the male and female rotor.A reciprocating compressor can havemore than 15 times that number ofcritical parts. Multiples of pistons, valves,crankshafts, and connecting rods in areciprocating unit all represent differentfailure paths for the compressor. In fact,reciprocating compressors can easilyhave a failure rate four times of a helicalrotor. Combine that with two to threereciprocating compressors for eachhelical rotary compressor on chillers ofequal tonnage, and statistics tell you it’s amatter of time before you lose areciprocating compressor.RLC-PRC006-ENRobust components. Helical rotarycompressors are precisely machinedusing state of the art processes from solidmetal bar stock. Tolerances aremaintained within a micron or less than atenth of the diameter of a human hair.Theresulting compressor is a robust yethighly sophisticated assembly capable ofingesting liquid refrigerant without risk ofdamage. Contrast this to a reciprocatingcompressor, which can be destroyed by asingle slug of liquid.Condenser coils.Trane’s condensercoils are manufactured with the samephilosophy as the compressors; they’rebuilt to last. Even though manufacturingprocesses have allowed thinner andthinner materials in their assembly, withobvious material and manufacturingsavings,Trane’s coil material did notchange with the RTAC generation of aircooled chillers. Substantial condenserfins, that do not require additional coatingin non-corrosive environments,contribute to the highest reliabilitystandards for air-cooled chillers in theindustry.5
Features andBenefitsSuperior Control The Adaptive Control microprocessorsystem enhances the air-cooled Series Rchiller by providing the very latest chillercontrol technology. With the AdaptiveControl microprocessor, unnecessaryservice calls and unhappy tenants areavoided.The unit is designed not to trip orunnecessarily shut down. Only when theTracer chiller controllers haveexhausted all possible corrective actionsand the unit is still violating an operatinglimit will the chiller shut down. Controls onother equipment typically shut down thechiller, usually just when it is needed themost.For example:A typical five-year-old chiller with dirtycoils might trip-out on high pressurecutout on a 100 F [38 C] day in August. Ahot day is just when comfort cooling isneeded the most. In contrast, the aircooled Series R chiller with an AdaptiveControl microprocessor will stage fanson, modulate electronic expansion valve,and modulate slide valve position as itapproaches a high pressure cutout,thereby keeping the chiller on-line whenyou need it the most.Simple Installation Compact Physical Size.TheTrane ModelRTAC chiller averages a 20% reductionin physical footprint, while the greatestchange is actually 40% smaller whencompared against the previous design.This improvement makes the RTAC thesmallest air-cooled chiller in the industryand a prime candidate for installationsthat have space constraints. All physicalsizes were changed without sacrificingthe side clearances needed to supplyfresh airflow without coil starvation. Close Spacing Installation.The air-cooledSeries R Chiller has the tightestrecommended side clearance in theindustry, four feet for maximumperformance. In situations whereequipment must be installed with lessclearance than recommended, whichfrequently occurs in retrofit applications,restricted airflow is common.Conventional chillers may not work atall. However, the air-cooled Series Rchiller with Adaptive Control microprocessor will make as muchchilled water as possible given theactual installed conditions, stay on lineduring unforeseen abnormal conditions,and optimize the unit performance.Consult yourTrane sales engineer formore details. Factory Testing Means Trouble-FreeStart-Up. All air-cooled Series R chillersare given a complete functional test atthe factory.This computer-based testprogram completely checks the sensors,wiring, electrical components,microprocessor function,communication capability, expansionvalve performance and fans. In addition,each compressor is run and tested toverify capacity and efficiency. Whereapplicable, each unit is factory preset tothe customer’s design conditions; anexample would be leaving liquidtemperature setpoint.The result of thistest program is that the chiller arrives atthe job site fully tested and ready foroperation. Factory Installed and Tested Controls/Options Speed Installation. All Series Rchiller options, including main powersupply disconnect, low ambient control,ambient temperature sensor, lowambient lockout, communicationinterface and ice making controls, arefactory installed and tested. Somemanufacturers send accessories inpieces to be field installed. WithTrane,the customer saves on installationexpense and has assurance that ALLchiller controls/options have been testedand will function as intended.Figure 3. Minimum installation clearance requirements for no performance degradation6RLC-PRC006-EN
Features andBenefitsUnit Performance TestingThe ARI Certification Program has had acertification program covering air-cooledwater chillers for many years. With this inmind, customers may ask, “Do I need tofactory performance test my chiller?”Trane began promoting factoryperformance tests for water-cooled waterchillers in 1984 for the same reasons it isvalid today for air-cooled water chillers, toshow we stand behind the products wedesign and build.The benefits of a performance testinclude verification of performance,prevention of operational problems, andassurance of a smooth start-up. Only aperformance test conducted in alaboratory or laboratory grade facility willconfirm both performance and operationof a specific chiller.While most factory performance tests gosmoothly, should problems occur,Tranepersonnel can quickly correct them andthe chiller will ship as specified. Job sitediagnosis, ordering of parts, and waitingfor delivery of replacement componentsis significantly reduced.A factory performance test reduces startup time, thereby saving job site expense.A chiller that has been tested is operationand performance-proven.This allows theinstalling contractor to concentrate onproper electrical wiring and water piping,and the service technicians toconcentrate on proper refrigerant charge,safeties diagnosis and initial logging ofthe chiller. Means of obtaining full load onthe chiller and proving its performance donot have to be determined by engineersor contractors, thus saving time. Thecertified test report documentsperformance for the unit as built. Inaddition, factory testing significantlyreduces commissioning time and risk byre-introducing manufacturerresponsibility, where its mitigation shouldreside.When a factory performance test isrequested, the test can be conducted atthe specified design conditions for allpackaged chillers from 70 to 500 tons.The test facility has the capability tocontrol ambient test conditions to assureour customers that our chillers willperform as predicted.Figure 4. Air-cooled Run Test Facility shown with an RTAC 500 ton unitRLC-PRC006-EN7
Features andBenefitsHigh Efficiency/Performance OptionThis option provides oversized heatexchangers for two purposes. One, itallows the unit to be more energyefficient.Two, the unit will have enhancedoperation in high ambient conditions.Low Temperature BrineThe hardware and software on the unitare factory set to handle lowtemperature brine applications (less than40 F [4.4 C]).Ice MakingThe unit controls are factory set to handleice making for thermal storageapplications.Tracer Summit Communication InterfacePermits bi-directional communication tothe Trane Integrated Comfort system.LonTalk (LCI-C) CommunicationsInterfaceProvides the LonMark chiller profileinputs/outputs for use with a genericbuilding automation system.Remote Input OptionsPermits remote chilled liquid setpoint,remote current limit setpoint, or both byaccepting a 4-20 mA or 2-10 Vdc analogsignal.Remote Output OptionsPermits alarm relay outputs, ice makingoutputs, or both.Architectural Louvered PanelsLouvered panels cover the completecondensing coil and service area beneaththe condenser.Coil ProtectionLouvered panels protect the condensercoils only.Access ProtectionA coated wire mesh that covers theaccess area under the condenser coils.Wye-Delta Compressor Start TypeThis option provides a reduced inrushstarter. Wye-Delta starters are standardon 200-230 volt machines.Condenser Corrosion ProtectionCopper fins and CompleteCoat areavailable on all size units for corrosionprotection. Job site conditions should bematched with the appropriate condenserfin materials to inhibit coil corrosion andensure extended equipment life.TheCompleteCoat option provides fullyassembled coils with a flexible dip andbake epoxy coating.TEAO Condenser Fan MotorsTotally enclosed air-over (TEAO) motorscompletely seal the motor windings toprevent exposure to ambient conditions.Low Ambient OptionThe low ambient option provides specialcontrol logic and variable frequencydrives on the condenser fan circuits topermit low temperature start-up andoperation down to 0 F [-18 C].Single/Dual Incoming Power LineConnectionSingle or dual points of termination areavailable for incoming power lineconnections*. Units with 3-4 compressorsmust order circuit breakers with thesingle point connection option.*Some restrictions may apply.OptionsThis option offers the best performancewhen coupled with the high efficiencyperformance option.Non-Fused Power Disconnect SwitchThe non-fused molded case disconnectswitch (UL approved) is used todisconnect the chiller from main powerand comes pre-wired from the factorywith terminal block power connections.The external operator handle is lockable.Circuit BreakerA HACR rated molded case capacitycircuit breaker (UL approved) is available.The circuit breaker can also be used todisconnect the chiller from main powerwith a through-the-door handle andcomes pre-wired from the factory withterminal block power connections.Theexternal operator handle is lockable.Neoprene IsolatorsIsolators provide isolation between chillerand structure to help eliminate vibrationtransmission. Neoprene isolators aremore effective and recommended overspring isolators.Flange KitProvides a raised-face flange kit thatconverts the grooved pipe evaporatorwater connections to flange connectors.Convenience OutletProvides a 15 amp, 115 volt (60 Hz)convenience outlet on the unit.Remote EvaporatorThe remote evaporator option isavailable on the RTAC 140-250 ton units.This option provides a pre-engineeredmethod of installing the evaporator andall related components indoors. Remoteevaporator installations allow the waterloop to remain indoors to preventfreezing, thus eliminating the addition ofglycol to the system and the resultingperformance degradation. Please contactyour Trane Sales Representative for splitsystem design guidelines found inEngineering Bulletin RLC-PRB014-EN.High Ambient OptionThe high ambient option consists ofspecial control logic to permit highambient (up to 125 F [51 C]) operation.8RLC-PRC006-EN
Human InterfacesTheTrane air-cooled Model RTAC chilleroffers two easy-to-use operator interfacepanels, the EasyView and the DynaView.ControlsStandalone ControlsFigure C1. DynaView operator interfaceStandard Features External Auto/Stop — A jobsiteprovided contact closure will turn theunit on and off.DynaView is an LCD touchscreen displaythat is navigated by file tabs.This is anadvanced interface that allows the userto access any important informationconcerning setpoints, activetemperatures, modes, electrical data,pressures, and diagnostics. Chilled Waterflow Interlock — A jobsiteprovided contact closure from a chilledwater pump contactor or a flow switch isrequired and will allow unit operation if aload exists.This feature will allow theunit to run in conjunction with the pumpsystem.Adaptive Safety ControlsA centralized microcomputer offers ahigher level of machine protection. Sincethe safety controls are smarter, they limitcompressor operation to avoidcompressor or evaporator failures,thereby minimizing nuisance shutdown.Tracer Chiller Controls directly sensesthe control variables that govern theoperation of the chiller: motor currentdraw, evaporator pressure andcondenser pressure. When any one ofthese variables approaches a limitcondition where damage may occur tothe unit or shutdown on a safety,TracerChiller Controls takes corrective action toavoid shutdown and keep the chilleroperating.This happens throughcombined actions of compressor slidevalve modulation, electronic expansionvalve modulation and fan staging.TracerChiller Controls optimizes total chillerpower consumption during normaloperating conditions. During abnormaloperating conditions, the microprocessorwill continue to optimize chillerperformance by taking the corrective External Interlock — A jobsite suppliedcontact opening wired to this input willturn the unit off and require a manualreset of the unit microcomputer.Thisclosure is typically triggered by a jobsitesupplied system such as a fire alarm.RLC-PRC006-ENaction necessary to avoid shutdown.Thiskeeps cooling capacity available until theproblem can be solved. Wheneverpossible, the chiller is allowed to performits function; making chilled water. Inaddition, microcomputer controls allowfor more types of protection such as overand under voltage. Overall, the safetycontrols help keep the building or processrunning and out of trouble.Standalone ControlsInterface to standalone units is verysimple; only a remote auto/stop forscheduling is required for unit operation.Signals from the chilled water pumpcontactor auxiliary or a flow switch arewired to the chilled waterflow interlock.Signals from a time clock or some otherremote device are wired to the externalauto/stop input. Chilled Water Pump Control — Unitcontrols provide an output to control thechilled water pump(s). One contactclosure to the chiller is all that is requiredto initiate the chilled water system.Chilled water pump control by the chilleris a requirement on the Air-CooledSeries R. Chilled Water Temperature Reset —Reset can be based on return watertemperature or outdoor airtemperature.9
ControlsEasy Interface to A Generic BuildingManagement SystemControlling the air-cooled Series R chillerwith building management systems isstate-of-the-art, yet simple with either theLonTalk Communications Interface forChillers (LCI-C) or Generic BuildingManagement System Hardwire Points.What are LonTalk, Echelon, andLonMark?LonTalk is a communications protocoldeveloped by the Echelon Corporation.The LonMark association developscontrol profiles using the LonTalkcommunication protocol. LonTalk is a unitlevel communications protocol, unlikeBACNet used at the system level.LonTalk Chiller ControlsLonTalk Communications Interface forChillers (LCI-C) provides a genericautomation system with the LonMarkchiller profile inputs/outputs. In addition tothe standard points required by LonMark,Trane provides other commonly usednetwork output variables for greaterinteroperability with any automationsystem. Note: LonMark networkvariable names are in parentheses whendifferent from chiller naming convention.Chiller Inputs: Chiller Enable/Disable Chilled Liquid Setpoint (Cool Setpoint) Current Limit Setpoint (Capacity Limit) Ice Making (Chiller Mode)Chiller Outputs: On/Off Active Setpoint Average Percent RLA (Actual Capacity) Active Current Limit Setpoint Leaving Chilled Water Temperature Entering Chilled WaterTemperature Alarm Descriptor Chiller Status Evaporator Water Pump Request Evaporator Refrigerant Temperature Evaporator Refrigerant Pressure Condenser Refrigerant Temperature Condenser Refrigerant Pressure Outdoor Air Temperature Condenser Air Flow Compressor Running Maximum Capacity Status Current Per Line Voltage Per Phase Oil Temperature Per Compressor Compressor Starts Compressor RunTime10Generic Building AutomationSystem ControlsSystem LevelControllerPC WorkstationMP581 ProgrammableControllerAir-cooled SeriesR lerTrane controls or another vendor’ssystem can use these points with ease togive the operator a complete picture ofhow the system is running.Hardwire PointsGBAS may be achieved via hardwareinput/output as well.Chiller hardwire inputs include: Chiller enable/disable Circuit enable/disable External chilled water setpoint External current limit setpoint Ice making enableChiller hardwire outputs include: Compressor running indication Alarm indication (Ckt1/Ckt 2) Maximum capacity Ice making statusExternal Current Limit SetpointAllows the external setting independentof the front panel setpoint by one of twomeans:c) 2-10 VDC inputb) 4-20 mA inputAlarm Indication ContactsThe unit provides three single-pole/double-throw contact closures to indicate:a) Compressor on/off statusb) Compressor running at maximumcapacityc) Failure has occurred (Ckt 1/Ckt 2)These contact closures may be used totrigger jobsite supplied alarm lights oralarm bells.Ice Making ControlProvides interface with ice making controlsystems.External Chilled Water SetpointAllows the external setting independentof the front panel setpoint by one of twomeans:a) 2-10 VDC inputb) 4-20 mA inputRLC-PRC006-EN
Trane Integrated ComfortSystem ControlsControlsModemRemote PC WorkstationPC WorkstationNotebookPC WorkstationLANBuildingControl UnitBuildingControl UnitVariTrane Variable Air VolumeTerminalModular Climate Changer Air HandlerRoom temperaturesensorDiffuserVariTrane Variable Air VolumeTerminalExhaust FanRoom temperaturesensorDiffuserTracer Summit controls — Interface WithThe Trane Integrated Comfort System(ICS)Trane Chiller Plant ControlTheTracer Summit Chiller Plant BuildingManagement System with Chiller PlantControl provides building automation andenergy management functions throughstand-alone control.The Chiller PlantControl is capable of monitoring andcontrolling your entire chiller plantsystem.Application software available: Time-of-day scheduling Demand limiting Chiller sequencing Process control language Boolean processing Zone controlRLC-PRC006-ENAir-cooled Series R Chiller Reports and logs Custom messages Run time and maintenance Trend log PID control loopsAnd of course, theTrane Chiller PlantControl can be used on a stand-alonebasis or tied into a complete buildingautomation system.When the air-cooled Series R chiller isused in conjunction with aTraneTracer Summit system, the unit can bemonitored and controlled from a remotelocation.The air-cooled Series R chillercan be controlled to fit into the overallbuilding automation strategy by usingtime of day scheduling, timed override,demand limiting, and chiller sequencing.A building owner can completelymonitor the air-cooled Series R chillerfrom theTracer system, since all of themonitoring information indicated on theunit controller’s microcomputer can beread off theTracer system display. Inaddition, all the powerful diagnosticinformation can be read back at the Tracersystem. Best of all, this powerfulcapability comes over a single twistedpair of wires! Air-cooled Series R chillerscan interface with many differentexternal control systems, from simplestand-alone units to ice making systems.Each unit requires a single-source, threephase power supply and a single-phase115V/60Hz, [220V/50Hz] power supply.The added power supply powers theevaporator heaters.A single twisted pair of wires tied directlybetween the air-cooled Series R chillerand aTracer Summit system providescontrol, monitoring and diagnosticcapabilities. Control functions includeauto/stop, adjustment of leaving watertemperature setpoint, compressoroperation lockout for kW demand limitingand control of ice making mode.TheTracer system reads monitoringinformation such as entering and leavingevaporator water temperatures andoutdoor air temperature. Over 60individual diagnostic codes can be readby theTracer system. In addition, theTracer system can provide sequencingcontrol for up to 25 units on the samechilled water loop. Pump sequencingcontrol can be provided from theTracersystem.Tracer ICS is not available inconjunction with the remote display orthe external setpoint capability.Required OptionsTracer InterfaceExternal Trane Devices RequiredTracer Summit , Tracer 100 System orTracer Chiller Plant ControlAdditional Features That May Be UsedIce Making Control11
ControlsTrane Chiller Plant AutomationTrane’s depth of experience in chillers andcontrols makes us a well-qualified choicefor automation of chiller plants using aircooled Series R chillers .The chiller plantcontrol capabilities of theTraneTracerSummit building automation system areunequaled in the industry. Our chillerplant automation software is fully preengineered and tested. It is a standardsoftware application, not customprogramming which can prove to bedifficult to support, maintain, and modify.Energy EfficiencyTrane chiller plant automation intelligentlysequences starting of chillers to optimizethe overall chiller plant energy efficiency.Individual chillers are designated tooperate as base, peak, or swing based oncapacity and efficiency. Sophisticatedsoftware automatically determines whichchiller to run in response to currentconditions.The software alsoautomatically rotates individual chilleroperation to equalize runtime and wearbetween chillers.Trane chiller plant automation enablesunique energy-saving strategies. Anexample is controlling pumps, and chillersfrom the perspective of overall systemenergy consumption.The softwareintelligently evaluates and selects thelowest energy consumption alternative.Trane Integrated ComfortSystem ControlsKeeping Operators InformedA crucial part of efficiently running achiller plant is assuring that theoperations staff is instantly aware of whatis happening in the plant. Graphicsshowing schematics of chillers, piping,pumps, and towers clearly depict thechiller plant system, enabling buildingoperators to easily monitor overallconditions. Status screens display bothcurrent conditions and upcomingautomated control actions to add orsubtract chiller capacity. Series R andother chillers can be monitored andcontrolled from a remote location.Tracer Summit features standard reporttemplates listing key operating data fortroubleshooting and verifyingperformance. Reports for each type ofTrane chiller and three and six-chillersystems are also standard. Detailedreports showing chiller runtimes aid inplanning for preventative maintenance.Swift Emergency ResponseWe understand the importance ofmaintaining chilled water productionwhile protecting your chillers from costlydamage. If no water flow is detected to achiller’s piping, the start sequence isaborted to protect the chiller.The nextchiller in the sequence is immediatelystarted to maintain cooling.In the event of a problem, the operatorreceives an alarm notification anddiagnostic message to aid in quick andaccurate troubleshooting. A snapshotreport showing system status just prior toan emergency shutdown helps operatorsdetermine the cause. If emergencyconditions justify an immediate manualshutdown, the operator can override theautomatic control.Easy Documentation for RegulatoryComplianceComprehensive documentation ofrefrigerant management practices is nowa fact of life.Trane chiller plant automationgenerates the reports mandated inASHRAE Guideline 3.12Integrated Comfort CapabilitiesWhen integrated with aTracer Summitbuilding management systemperforming building control,Trane chillerplant automation coordinates withTracerSummit applications to optimize the totalbuilding operation. With this systemoption, the full breadth ofTrane’s HVACand controls experience are applied tooffer solutions to many facility issues. Ifyour project calls for an interface to othersystems, Tracer Summit can share datavia BACnet , the ASHRAE open systemsprotocol.Ice Making Systems ControlsSimple and smart control strategies areanother advantage the Model RTACchiller offers for ice storage applications.TraneTracer building managementsystems can actually anticipate howmuch ice needs to be made at night andoperate the system accordingly.Thecontrols are integrated right into thechiller.Two wires and preprogrammedsoftware dramatically reduce fieldinstallation cost and complexprogramming.When the ice making option is ordered,the air-cooled Series R chiller will havetwo operating modes, ice making andnormal daytime cooling. In the ice makingmode, th
Air-Cooled Series R Rotary Liquid Chiller Model RTAC 140 to 500 Tons (60 Hz) 140 to 400 Tons (50 Hz) Built For the Industrial and Commercial Markets . standards for air-cooled chillers in the industry. Features and Benefits Figure 2. Cutaway of a compressor. 6 RLC-PRC006-EN Simple Installation † Compact Physical Size. The Trane Model
Air Cooled Chiller Air Air 2 Air Air 6 AIR COOLED CHILLERS Air-cooled chillers are refrigeration machines that remove heat from cooling loads using chilled water and reject this heat into the atmosphere using refrigerant. THEY ALL HAVE fans, condenser coils, and compressors. Air-cooled chillers are used to provide cooling for human comfort and electronic equipment as well as industrial process .
Maximum Series portable chillers can be used on a variety of process applications that require 20 F to 80 F chilled water. MAXIMUM SERIES † Air & Water-Cooled † 1/4 to 40 Tons † 20 F to 80 F † Using Non-Ozone Depleting Refrigerants 10 ton air-cooled model 10 ton water-cooled model 2 ton water-cooled model 1 ton air-cooled model
The air-cooled Rotary chiller utilizes two, three, or four Trane Helirotor compres-sors that operate on two refrigeration cir-cuits. The tonnages of these compressors are 70, 85, and 100 ton, and they are grouped together in different configura-tions to make up the air-cooled product line from 125 to 400 tons. Trane air-cooled Helirotor compressors
ACH Air-Cooled, Horizontal Air Flow ACV Air-Cooled, Vertical Air Flow ACR Air-Cooled Remote Condenser WCC Water-Cooled Condenser Digit 6 — Chilled Water System P Recirculating System, Tank and Pump M Single Pass Chiller Unit (no tank and pump) Digit 7 — Cabinet Type H Horizontal Low Profile V Vertical Upright
Vanguard Air-Cooled V-Twin Specifications Performance Curves 14 HP Vanguard Air-Cooled V-Twin 16 HP Vanguard Air-Cooled V-Twin 15.0 5.2 Kilowatt 7.5 8.2 9.0 9.7 10.4 111.2 111.9 14.0 13.0 12.0 11.0 10.0 9.0 8.0 7.0 16.0 6.7 6.0 HP 1800 2000 2200 24002600 2800 3000 3200 3400 3600 17.0 12.7 REVOLUTIONS PER MINUTE RATED GROSS BHP MAXIMUM .
EWY Air-cooled chiller, heat pump EWL Remote condenser chiller ERA Air cooled condensing unit EWW Water-cooled chiller, cooling only EWC Air-cooled chiller, cooling only with centrifugal fan EWT Air-cooled chiller, cooling only with heat recovery Refrigerant D R-134a P R-407c Q R-410a Capacity class in kW (Cooling) Always 3 .
AIR-COOLED Air-Cooled chillers utilize plant ambient air to extract heat from the refrigeration circuit. Fan or blowers move the plant air across generously sized finned condenser coils to permit full rated capacity at design conditions. WATER-COOLED Water-Cooled chillers utilize a secondary plant water source such as cooling tower or city .
Air-Cooled Chiller The use of air-cooled chillers in process and comfort cooling applications has been steadily increasing in recent years. The air-cooled chiller has evolved from a packaged product, with few options, to a fully customizable unit that can be tailored to meet specific application and job site requirements. High-efficiency air-cooled
