Rlc-prc020-En 2006 11 Catalog

Series R™ Helical RotaryLiquid Chillers

Model RTHD

175-450 Tons (60 Hz)

125-450 Tons (50 Hz)

Built for Industrial and Commercial Applications

RLC-PRC020-ENNovember 2006

RLC-PRC020-EN© 2004 American Standard Inc. All rights reserved.

Introduction

To meet a wide range of applications inthe medium-tonnage, water-cooledmarket, Trane is proud to introduce themodel RTHD helical rotary liquid chiller.The introduction of this next-generationchiller an exciting step forward inapplication versatility, ease of installation,control precision, reliability, energy-efficiency, and operationalcost-effectiveness. The new RTHD chilleris designed to deliver proven Series Rperformance, plus all the benefits of anadvanced heat transfer design and a low-speed, direct-drive compressor.

Important Design Advancesand New Features

Major design advances include:• Higher full-load energy efficiency

reduces both operating and life-cyclecosts.

• CH530 controls enable:- scrolling access to inputs and operating

information via the LCD touch-screendisplay;

- freedom from interoperabilityconcerns with LonMarkcommunications;

- job-specific communication optionsthat allow greater reporting flexibility.

• Improved startup temperaturecapabilities and reduced sensitivity tocondenser water temperaturesalleviate the most common startupconcerns.

• Removed Liquid Vapor Separator,providing lighter unit weight andsimplified refrigerant piping, for lessexpensive handling, separation, andinstallation.

The industrial-grade design of the SeriesR helical rotary chiller is ideal for bothindustrial and commercial markets, inapplications such as office buildings,hospitals, schools, retail buildings, andindustrial facilities. The linear unloadingcompressor, wide operating temperaturerange, advanced controls, electronicexpansion valve, short anti-recycletimers, and industry-leading efficienciesmean that this latest Trane Series R chilleris the perfect choice for tight temperaturecontrol in almost any applicationtemperatures, and under widely varyingloads.

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Contents

Introduction

Features and Benefits

Options

Controls

Application Considerations

Selection Procedure

Model Nomenclature

General Data

Electrical Data and Connections

Dimensions and Weights

Mechanical Specifications

Conversion Table

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Features andBenefits

Application Versatility and HighPerformance• Screw compressor technology and theelectronic expansion valve providereliable performance in an expandedrange of operating temperatures.

• Tight water temperature control extendsto operation of multiple chillers inparallel or series configurations, offeringfurther system design flexibility formaximum efficiency.

• Advanced design enables chilled watertemperature control to +/- 0.5°F (.28°C)for flow changes up to 10 percent perminute, plus handling of flow changes upto 30 percent per minute for comfortcooling.

• Two-minute stop-to-start and five-minutestart-to-start anti-recycle timer allowstight chilled water temperature controlin constant or transient low-loadapplications.

• LonMark communications capabilityprovides excellent, trouble-freeinteroperability.

• Generic Building Automation Systempoints are available for easy access tooperational information.

• Extensive information on professionaldesign selection and layout is availablein a simple, highly readable electronicformat.

• Standard model RTHD configurationsare in stock and available for immediatedelivery, and Trane offers the fastestship cycles in the industry for built-to-order units.

• Industrial / Low Temperature ProcessCooling – Excellent operatingtemperature range and precise controlcapabilities enable tight control withsingle chiller or series configuration.

• Ice/Thermal Storage – Specifiers andoperators benefit from dual setpointcontrol and industry-leadingtemperature, efficiency, and controlcapabilities, plus outstanding supportthrough partnership with Calmac, astrong Trane partner providing proveninstallation examples, templates, andreferences that minimize design timeand energy costs.

• Heat Recovery – Maximum condensertemperature exceeds those of previoustechnologies, providing hot water andtight control that minimizes operatingcosts for the chilled water plant andboiler/hot water heater, and consistentdehumidification.

Simple, Economical Installation• Compact size makes the model RTHD

well suited for the retrofit andreplacement market.

• All units fit through standard double-width doors.

• Bolt-together construction makes forfast, easy unit disassembly.

• Small RTHD footprint saves valuableequipment room space and alleviatesaccess concerns for most retrofit jobs.

• Lightweight design simplifies riggingrequirements, further reducinginstallation time requirements andcosts.

• Full factory refrigerant or nitrogen andoil charges reduce required field labor,materials, and installation cost.

• Only evaporator and condenser waterpiping is required; no starter watercooling (with its associated safetyconcerns) or field piping is necessary.

• Oil cooler and purge systemconnections have been eliminated.

• Simple power connection simplifiesoverall installation.

• Standard unit-mounted starter forWye-Delta and Solid State eliminatesadditional jobsite installationconsiderations and labor requirements.

• Trane has conducted extensive factorytesting, and also offers options for in-person and/or documented systemperformance verification.

• CH530 controls easily interface withTracer Summit™ building automationsystems through single twisted-pairwire.

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Features andBenefits

State-of-the-Art, Precision Control• Microprocessor-based CH530 controls

monitor and maintain optimal operationof the chiller and its associated sensors,actuators, relays, and switches, all ofwhich are factory-assembled andextensively tested.

• Easy interface with computers hostingTracer Summit™ building automation/energy management systems allowsthe operator to efficiently optimizecomfort system performance andminimize operating costs.

• PID (proportional integral derivative)control strategy ensures stable, efficientchilled water temperature control,maintaining +/- 1°F (0.56°C) control byproactively reacting to instantaneousload changes of up to 50 percent.

• Adaptive Control™ attempts to maintainchiller operation under adverseconditions, when many other chillersmight simply shut down.

• Easy-to-use operator interface displaysall operating and safety messages, withcomplete diagnostics information, on ahighly readable panel with a scrollingtouch-screen display.

• The RTHD features a complete range ofchiller safety controls.

• Over 120 diagnostic and operatingpoints are available, with standarddisplays including chiller current draw,condenser pressure, and evaporatorpressure.

Reliability and Ease of Maintenance• Direct drive, low-speed compressor – a

simple design with only three movingparts – provides maximum efficiency,high reliability, and low maintenancerequirements.

• Electronic expansion valve, with fewermoving parts than alternative valvedesigns, offers highly reliable operation.

• Suction gas-cooled motor staysuniformly cool at lower temperaturesfor longer motor life.

• The Trane helical rotary compressor is aproven design resulting from years ofresearch and thousands of test hours,including extensive testing underextraordinarily severe operatingconditions.

• Trane is the world’s largestmanufacturer of large helical rotarycompressors, with tens of thousands ofcommercial and industrial installationsworldwide demonstrating a reliabilityrate of greater than 99 percent in thefirst year of operation.

Operating and Life CycleCost-Effectiveness• Electronic expansion valve enables

exceptionally tight temperature controland extremely low superheat, resultingin more efficient full-load and part-loadoperation than previously available.

• Precise compressor rotor tip clearanceensures optimal efficiency.

• Condenser and evaporator tubes usethe latest heat transfer technology forincreased efficiency.

• The RTHD includes optional electricaldemand limiting.

• Chilled water reset based on returnwater temperature is standard.

• High compressor lift capabilities andtight chilled water temperature controlallow highly efficient system design withminimal operational concerns.

Design capabilities include:• variable primary flow;• series chiller arrangements for

evaporator and/or condenser;• low evaporator and condenser flow.

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Options

InsulationAll low temperature surfaces arecovered with factory installed 3/4 inch(19.05 mm) Armaflex II or equal (k=0.28)insulation, including the evaporator andwater boxes, suction line, and motorhousing. 3/8" foam insulation is used onthe liquid level sensor and gas pumpassembly, including piping.

Low-Temperature EvaporatorAddition of an oil cooler to the oil circuitenables evaporator operation down tominimum leaving water temperature of10°F (-12.2°C).

High-Temperature CondenserAddition of an oil cooler to the oil circuitenables condenser operation up tomaximum leaving water temperature of114°F (45.6°C).

Smooth-Bore Condenser TubesSmooth-bore copper or premium cupro-nickel condenser tubes, 3/4" (19.05 mm) indiameter with .035" (0.889 mm) wallthickness, are available for high foulingwater applications.

Refrigerant Isolation ValvesFactory-installed condenser inlet andoutlet refrigerant valves allow isolation ofthe full refrigerant charge in thecondenser while servicing the chiller.

Marine Water BoxesAddition of marine water boxes for thecondenser allows tube cleaning withoutwater pipe interference.

300 psig Evaporator and CondenserWater BoxesWater boxes are designed for 300 psigmaximum waterside working pressure,and grooved pipe water connections areprovided for ease of installation.

2-Way Condenser Water Regulating ValveFor water regulation, a field-installed,2-way butterfly-type (lug-style) valve,with integral electrical operator andfactory-mounted valve actuator, isavailable. The single-phase, reversiblemotor can be factory-wired for 115 VAC,60 Hz or 220 VAC, 50 Hz; the 2-way valveis field-wired and controlled by the chillerregulating valve control output; valvesare available in 6" and 8" (152.4 and203.2 mm) sizes.

Nitrogen ChargeUnit is shipped with a nitrogen holdingcharge in lieu of refrigerant.

Seal Kit for ReassemblyIdeal for situations when the bolt-togetherconstruction of the RTHD will beseparated for installation, this seal kitprovides replacement gaskets and ringsfor reassembly.

Solid State StarterSolid State Starter is unit-mounted with aNEMA 1 gasketed enclosure. To extendstarter life, contactors bypass currentfrom the silicon control rectifiers (SCRs)after startup.

Under/Over-Voltage ProtectionUnit receives protection againstvariations in voltage (current lag andspike protection is standard).

Performance and Witness TestsARI-certified RTHD Performance andWitness Tests are available, based onrequested operating points, to certifychiller performance before delivery.

Main Power DisconnectOptions:

Non-fused DisconnectA UL-approved non-fused molded casedisconnect switch, factory pre-wired withterminal block power connections andequipped with a lockable externaloperator handle, is available todisconnect the chiller from main power.

Standard Interrupting Capacity CircuitBreakerA UL-approved standard interruptingmolded case capacity circuit breaker,factory pre-wired with terminal blockpower connections and equipped with alockable external operator handle, isavailable to disconnect the chiller frommain power.

High Interrupting Capacity CircuitBreakerA UL-approved high interrupting moldedcase capacity circuit breaker, factory pre-wired with terminal block powerconnections and equipped with a lockableexternal operator handle, is available todisconnect the chiller from main power.

Ground Fault Circuit BreakerA UL-approved standard interruptingmolded case capacity circuit breaker withground fault interrupting capability,factory pre-wired with terminal blockconnections and equipped with a lockableexternal operator handle, is available todisconnect the chiller from main power.

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Control Options:

Tracer Summit CommunicationsLink to factory-installed, testedcommunication board, via single twisted-pair wiring, adds Tracer Summitcommunications to the system.

LonTalk LCI-C InterfaceLonTalk (LCI-C) communicationscapabilities are available, withcommunication link via single twisted-pairwiring to factory-installed, testedcommunication board.

External Chilled Water SetpointExternal Chilled Water Setpoint iscommunicated to a factory-installed,tested communication board through a 2-10Vdc or 4-20mA signal.

External Current LimitingExternal Current Limit Setpoint iscommunicated to a factory-installed,tested communication board through a 2-10Vdc or 4-20mA signal.

External Base LoadingExternal Base Loading is communicatedto a factory-installed and testedcommunication board through a2-10Vdc or 4-20mA signal.

Ice Making ControlControls and safeties allow operationwith brine temperatures down to 20°F(-6.7°C) , and dual setpoints enable bothice making and daytime comfort cooling.

Options

Programmable RelaysDefault-set, factory-installed,programmable relays allow the operatorto select four relay outputs from a list ofeight. Available relays are: Alarm-Latching, Alarm-Auto Reset, GeneralAlarm, Warning, Chiller Limit Mode,Compressor Running, Head PressureRelief Request, and Tracer Control.

Chilled Water Reset – Outdoor AirTemperatureControls, sensors, and safeties allowreset of chilled water temperature, basedon temperature signal, during periods oflow outdoor air temperature (chilledwater reset based on return chilled watertemperature is standard).

Condenser-Regulating Valve ControlChiller applies a Proportional IntegrativeControl (PID) algorithm to control waterregulating valve via 0-10Vdc signal.

Percent of Full Run Load Amps OutputControl system indicates the active chillerpercent of full run load amps, based on a0-10Vdc signal.

Condenser Pressure OutputControl system indicates chillerdifferential pressure or condenserpressure, based on a 0-10Vdc signal.

Refrigerant Monitor InputControl system indicates refrigerantmonitor status of 0-100 or 0-1000 ppm(user selectable), based on a 2-10Vdc /4-20 mA signal.

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LCD Touch-Screen Displaywith Multi-Language Support

The standard DynaView display providedwith the CH530 control panel features anLCD touch-screen, allowing access to alloperational inputs and outputs. Thisdisplay supports eleven languages:English, Chinese, Dutch, French, German,Italian, Japanese, Korean, Portugese,Spanish and Thai.

Additional Display Features Include:• LCD touch-screen with LED backlighting,for scrolling access to input and outputoperating information

• Weather-proof enclosure for reliableoperation in non-standard indoorenvironments

• Spin value buttons to allow continuouslyvariable setpoints when applicable

• Radio and action buttons for easy, one-time actions and settings

• Single-screen, folder/tab-style display ofall available information on individualcomponents (evaporator, condenser,compressor, etc.)

• Automatic and immediate stopcapabilities for standard or immediatemanual shutdown

• Manual override indication• Password entry/lockout system toenable or disable display

Controls

• Fast, easy access to available chillerdata in tabbed format, including:— Modes of operation, including normal

cooling and icemaking— Water temperatures and setpoints— Loading and limiting status and

setpoints— Average line current— Outdoor air temperature— Start/stop differential timers— Auto/Manual mode for EXV, slide

valve, and head pressure control— Pump status and override— Chilled water reset, start point, ratio,

and outdoor start point— External setpoints, including:

- chilled water- current limit- ice building- base loading

— Display specifics, including:- date- format- time- display lockout- display units- language setting- Reports, listed on a single tabbed

screen for easy access, including:• ASHRAE, containing all guideline 3

report information• Evaporator• Condenser• Compressor

— Evaporator, condenser, andcompressor reports containing alloperational information on individualcomponents, including:- Water and air temperatures- Refrigerant levels, temperatures,

and approach- Oil pressure- Flow switch status- EXV position- Head pressure control command- Compressor starts and run-time- Line phase percent RLA, amps, and

volts— Alarm and diagnostic information,

including:- Flashing alarms with touch-screen

button for immediate address ofalarm condition

- Scrollable list of last ten activediagnostics

- Specific information on applicablediagnostic from list of over one-hundred

- Automatic or manual resettingdiagnostic types

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Controls

Trane Chiller Plant Automation

Trane’s depth of experience in chillers andcontrols makes us a well-qualified choicefor automation of chiller plants using air-cooled Series R® chillers®. The chiller plantcontrol capabilities of the Trane TracerSummit® building automation system areunequaled in the industry. Our chiller plantautomation software is fully pre-engineered 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.

Regulatory Compliance DocumentationComprehensive documentation ofrefrigerant management practices is nowa fact of life. Trane chiller plant automationgenerates the reports mandated inASHRAE Guideline 3.

Keeping Operators InformedA crucial part of efficiently running achiller plant is assuring that theoperations staff is instantly aware ofwhat is 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.

Integrated Comfort™ CapabilitiesWhen integrated with a Tracer Summitbuilding management systemperforming building control, Trane chillerplant automation coordinates with TracerSummit applications to optimize the totalbuilding operation. With this systemoption, the full breadth of Trane’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.

LonTalk Chiller Controls

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 Communications Interface forChillers (LCI-C) provides a genericautomation system with the LonMarkchiller profile inputs/outputs. In addition tothe standard points, Trane provides othercommonly used network output variablesfor greater interoperability with anyautomation system. The completereference list of Trane LonTalk points isavailable on the LonMark website. Tranecontrols or another vendor’s system canuse the predefined list of points with easeto give the operator a complete picture ofhow the system is running.

Hardwire Points

Remote devices wired from the controlpanel are another reliable method ofproviding auxiliary control to a buildingautomation system. Inputs and outputscan be communicated via a typical 4-20mA electrical signal (or an equivalent Vdcsignal of 0-10 or 2-10) or by utilizingcontact closures.

• External Chilled Water Setpoint

• External Current Limit Setpoint

• Condenser-Regulating Valve Control

• Percent of Full Run Load Amps Output

• Condenser Pressure Output

• Refrigerant Monitor Input

• Programmable RelaysAllows the selection of 4 relay outputsfrom a list of eight different defaultsettings: Alarm-Latching, Alarm-AutoReset, General Alarm, Warning, ChillerLimit Mode, Compressor Running, HeadPressure Relief Request, and TracerControl. These contact closures may beused to trigger jobsite supplied audible orvisual alarms

• Ice Making ControlProvides an interface with ice makingcontrol system and safeties, enablingboth ice making and daytime comfortcooling

• Chilled Water Temperature ResetSupplies controls, sensors and safeties toreset the chilled water temperaturesetpoint based upon return watertemperature (standard) or outdoor airtemperature (optional)

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Condenser Water TemperaturesReduced sensitivity to condenser waterstartup temperatures is one majorenhancement in the newest-generationwater-cooled Series R chiller. With themodel RTHD chiller, a condenser watercontrol method is necessary only if theunit starts with entering watertemperatures below 55°F (12.8°C), orbetween 45°F (7.2°C) and 55°F (12.8°C),when a temperature increase of 1°F(0.56°C) per minute to 55°F (12.8°) is notpossible.

When the application requires startuptemperatures below the prescribedminimums, a variety of options areavailable. To control a 2-way or 3-wayvalve, Trane offers a CondenserRegulating Valve Control option for theCH530 controls. This option enables theCH530 controls to send a signal foropening and closing the valve asnecessary to maintain chiller differentialpressure. The 2-way valves are availableas a ship-with option. Tower bypass isalso a valid control method if the chillertemperature requirements can bemaintained.

Trane Series R chillers start and operatesuccessfully and reliably over a range ofload conditions with controlled enteringcondenser water temperature. Reducingthe condenser water temperature is aneffective method of lowering chiller

ApplicationConsiderations

power input required, but the idealtemperature for optimizing total systempower consumption will depend on theoverall system dynamics. From a systemperspective, some improvements inchiller efficiency may be offset by theincreased tower fan and pumping costsrequired to achieve the lower towertemperatures. Contact your local Tranesystems solution provider for moreinformation on optimizing systemperformance.

The minimum acceptable refrigerantpressure differential between condenserand evaporator is 23 psid. The chillercontrol system will attempt to obtain andmaintain this differential at startup, but forcontinuous operation a design shouldmaintain a 25°F (13.9°C) differential fromevaporator leaving water temperature tocondenser leaving water temperature.

Variable Evaporator Flow and ShortEvaporator Water LoopsVariable evaporator flow is an energy-saving design strategy which has quicklygained acceptance as advances in chillerand controls technology have made itpossible. With its linear unloadingcompressor design and advanced CH530controls, the RTHD has excellentcapability to maintain leaving watertemperature control within +/-0.5°F(0.28°C) , even for systems with variableevaporator flow and small chilled watervolumes.

Some basic rules should be followedwhenever using these system design andoperational savings methods with theRTHD. The proper location of the chilledwater temperature control sensor is inthe supply (outlet) water. This locationallows the building to act as a buffer, andit assures a slowly changing return watertemperature. If there is insufficient watervolume in the system to provide anadequate buffer, temperature control canbe lost, resulting in erratic systemoperation and excessive compressorcycling. To ensure consistent operationand tight temperature control, the chilledwater loop should be at least twominutes. If this recommendation cannotbe followed, and tight leaving watertemperature control is necessary, astorage tank or larger header pipe shouldbe installed to increase the volume ofwater in the system.

For variable primary flow applications,the rate of chilled water flow changeshould not exceed 10 percent of designper minute to maintain +/-0.5°F (0.28°C)leaving evaporator temperature control.For applications in which system energysavings is most important and tighttemperature control is classified as+/-2°F (1.1°C), up to 30 percent changes inflow per minute are possible. Flow ratesshould be maintained between theminimum and maximum allowed for anyparticular chiller configuration.

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Series Chiller ArrangementsAnother energy-saving strategy is todesign the system around chillersarranged in series, on the evaporator,condenser, or both. The actual savingspossible with such strategies depends onthe application dynamics and should beresearched by consulting your TraneSystems Solutions Representative andapplying the Trane System Analyzerprogram. It is possible to operate a pair ofchillers more efficiently in a series chillerarrangement than in a parallelarrangement. It is also possible to achievehigher entering-to-leaving chillerdifferentials, which may, in turn, providethe opportunity for lower chilled waterdesign temperature, lower design flow,and resulting installation and operationalcost savings. The Trane screwcompressor also has excellentcapabilities for “lift,” which affords anopportunity for savings on theevaporator and condenser water loops.

ApplicationConsiderations

Like series arrangements on theevaporator, series arrangements on thecondenser may enable savings. Thisapproach may allow reductions in pumpand tower installation and operatingcosts. Maximizing system efficiencyrequires that the designer balanceperformance considerations for allsystem components; the best approachmay or may not involve multiple chillers,or series arrangement of the evaporatorsand/or condensers. This ideal balance ofdesign integrity with installation andoperating cost considerations can also beobtained by consulting a Tranerepresentative and applying the TraneSystem Analyzer program.

Water TreatmentThe use of untreated or improperlytreated water in chillers may result inscaling, erosion, corrosion, and algae orslime buildup. It is recommended that theservices of a qualified water treatmentspecialist be engaged to determine whattreatment, if any, is advisable. Traneassumes no responsibility for the resultsof using untreated or improperly treatedwater.

Water PumpsWhere noise limitation and vibration-freeoperation are important, Trane stronglyencourages the use of 1750-rpm (60 Hz),1450-rpm (50 Hz) pumps. Specifying orusing 3600-rpm (60 Hz), 3000-rpm (50 Hz)condenser water and chilled waterpumps must be avoided, because suchpumps may operate with objectionablelevels of noise and vibration. In addition, alow frequency beat may occur due to theslight difference in operating rpmbetween 3600-rpm (60 Hz), 3000-rpm(50 Hz) water pumps and Series R chillermotors. Important Note: The chilled waterpump must not be used to stop the chiller.

Acoustic ConsiderationsFor chiller sound ratings, installation tips,and considerations on chiller location,pipe isolation, etc., refer to the TraneWater-Cooled Series R Chillers SoundRatings and Installation Guide. Using theinformation provided in this bulletin,contact a certified sound consultant to aidin proper mechanical room design andtreatment.

Figure 1. Typical series chiller arrangement

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SelectionProcedure

Trane Series R chiller performance israted in accordance with the ARIStandard 550/590-2003 CertificationProgram. Chiller selection assistance andperformance information can beobtained by using the Series R chillerselection program, available throughlocal Trane sales offices.

PerformanceThe computerized Series R chillerselection program provides performancedata for each possible chiller selection atboth full-load and part-load design points,as required.

It should be noted that changing thenumber of water passes or the waterflow rates will generally alter theperformance of a particular chiller. Toattain maximum benefit from the widerange of chiller models and optionsavailable, designers are encouraged tofirst develop performance specificationsand then use the chiller selection programto optimize all selections. This will helpensure selection of the compressor-evaporator-condenser combination thatmost closely meets the job requirements.To optimize system performance, allselections should also be balanced withother system components.

Fouling FactorsARI Standard 550 includes a definition ofclean tube fouling. The recommendedstandard fouling adjustments are 0.0001hr-sq ft-deg F/Btu (0.0176 sq m-deg C/kW)for the evaporator and 0.00025 hr-sq ftdeg F/Btu (0.044 sq m-deg C/kW) for thecondenser, from an increment of 0.0000“clean.” Chiller specifications should bedeveloped using the most currentstandard fouling factors.

Part Load PerformanceActual air-conditioning system loads arefrequently less than full-load designconditions. Depending on the number ofchillers on the job and the load profile,chillers may operate at full load a smallpercentage of the time. With theirexcellent part-load performancecharacteristics and highly energy-efficientoperation, Series R chillers can providesignificant operating savings at thesepart-load conditions.

System ConsiderationsPart-load chiller operation is frequentlyassociated with reduced condenserwater temperatures. However, ratherthan focusing only on the chiller, it isimportant to balance these temperaturesto achieve the most efficient systemoperation possible. At part-loadoperation, the heat rejected to the coolingtower is less than at full-load operation.

Part-load chiller operation is also typicallyassociated with reduced outside wet bulbtemperatures, resulting in improvedcooling tower performance. The net resultof reduced heat rejection and lower wetbulb temperatures can be coolercondenser water entering the chiller,ultimately improving unit performance.However, this does not improve pump ortower efficiency. To achieve the mostefficient system operation possible, it isbest to minimize the total power draw ofthe chiller, tower, and pumps, which maynot mean limiting the condenser watertemperature to what the tower canprovide. To determine specific unit andsystem part-load performance for chillerselection purposes, use the Series Rchiller computer selection program orcontact the local Trane sales office.

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Electrical Data TablesCompressor motor electrical data isprovided in the data section for eachcompressor size. Rated load amperes(RLA), locked rotor wye amperes (LRA)and expected inrush for the Wye-deltaand Solid State Starter configurations areshown.

Although the terms “LRA” and “expectedinrush” are often used interchangeably,the distinction applied here is that LRA isthe rated inrush for the motor, butexpected inrush is that allowed by thestarter, based on the specificconfiguration.

Selecting starters in the Wye-delta orSolid State configuration lowersexpected inrush vs. the Delta (or “across-the-line”) configuration. A Solid StateStarter configuration lowers theexpected inrush by approximately 50percent, while Wye-Delta lowers it byapproximately 66 percent.

The RLA is based on the motor’sperformance when reaching full ratedhorsepower. The kW rating of the motorwill equal or exceed the kW requirementindicated by the Series R computerselection program at design conditions. Ifmotor kW draw at design conditions isless than the kW rating of the motor, theRLA at design conditions is determinedby multiplying the motor RLA (at thedesired voltage) by this ratio: design kW/motor kW rating. This calculation isperformed within the Series R chillercomputer selection program, makingRLA available as part of the designpredictions. Predicted values includepower factor variation from point to point.

A voltage utilization range is tabulated foreach voltage listed. Series R chillers aredesigned to operate satisfactorily over autilization range of ±10 percent of thestandard design voltages: (a) 200 V, 230 V,380 V, 460 V, and 575 V for 60 Hertz, 3-phase, and (b) 380 V, 400 V,415 V for 50 Hertz, 3-phase.

SelectionProcedure

Unit Performance with Fluid MediaOther Than WaterSeries R chillers can be provided with awide variety of fluid media other thanwater, including ethylene glycol andpropylene glycol— in the evaporator,condenser or both. Chillers using mediaother than water are excluded from theARI 550/590-2003 Certification Program,but are rated in accordance with ARIStandard 550/590-2003. Trane factoryperformance tests are only performedwith water as the cooling and heat-rejection media. When consideringselection of media other than water,contact the local Trane sales office forchiller selections and factoryperformance testing information.

Fluid media other than water lowers theheat transfer coefficient, and thereforereduces chiller performance. In general, itis good practice to hold the percent glycoladded to within the minimum allowed bythe Trane selection program, based oneither (a) unit operating temperatures, or(b) the operating temperatures theevaporator or condenser water willexperience under its full range ofconditions. Adding more glycol thanrequired for the specific application isequivalent to selecting a less efficientchiller. Lower-viscosity glycols such asethylene will have less adverse impacton chiller performance than higher-viscosity glycols such as propylene.

Evaporator and Condenser PressureDropPressure drop data is determined by theSeries R chiller computer selectionprogram available through local Tranesales offices.

Dimensional DrawingsDimensional drawings provided forselection purposes illustrate overallmeasurements of the unit. Therecommended service clearances arethose required to easily service theSeries R chiller.

All catalog dimensional drawings aresubject to change, and current submittaldrawings should be referenced for moredetailed dimensional information.Dimensional drawings are also availablefrom the selection program. Contact thelocal Trane sales office for submittalinformation.

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ModelNomenclature

RTH D U D 2 F 0 A0 U A G 3 A 4 L A L G 3 F 2 L A L1,2,3 4 5 6 7 8 9 10,11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

Digits 01, 02, 03 – Series R™

RTH = Series R

Digit 04 – Dev SequenceD = 4th Major Development

Digit 05 – Design ControlU = WCBU

Digit 06 – Compressor FrameB = B CompressorC = C CompressorD = D CompressorE = E Compressor

Digit 07 – Compressor Capacity1 = Smaller Capacity for Frame2 = Larger Capacity for Frame3 = 50Hz Capacity

Digit 08 – Unit Power SupplyA = 200V/60Hz/3Ph powerC = 230V/60Hz/3Ph powerD = 380V/60Hz/3Ph powerR = 380V/50Hz/3Ph powerT = 400V/50Hz/3Ph powerU = 415V/50Hz/3Ph powerF = 460V/60Hz/3Ph powerH = 575V/60Hz/3Ph power

Digit 09 – SpecialsX = No specialsC = All specials denoted by digits elsewhereS = Uncategorized special not denoted by

other digits

Digits 10, 11 – Design Sequence** = First Design, etc. increment when parts

are affected for service purposes

Digit 12 – Agency ListingX = No agency listingU = C/UL

Digit 13 – Pressure Vessel CodeA = ASMEL = Chinese Pressure Vessel Code

Digit 14 – Evaporator FrameB = B FrameC = C FrameD = D FrameE = E FrameF = F FrameG = G Frame

Digit 15 – Evaporator Capacity1 = Tube count #12 = Tube count #23 = Tube count #34 = Tube count #45 = Tube count #56 = Tube count #6

Digit 16 – Evaporator Tube TypeA = Enhanced Fin Copper

Digit 17 – Evaporator Water PassConfiguration2 = 2 pass3 = 3 pass4 = 4 pass

Digit 18 – Evaporator Water ConnectionL = Left Hand Evaporator ConnectionR = Right Hand Evaporator Connection

Digit 19 – Evaporator Connection TypeA = Standard Grooved Pipe

Digit 20 – Evaporator Waterside PressureL = 150 psiH = 300 psi

Digit 21 – CondenserB = B FrameD = D FrameE = E FrameF = F FrameG = G Frame

Digit 22 – Condenser Capacity1 = Tube count #12 = Tube count #23 = Tube count #34 = Tube count #45 = Tube count #5

Digit 23 – Condenser Tube TypeA = Enhanced Fin CopperB = Smooth Bore CopperC = Smooth Bore 90/10 CU/NI

Digit 24 – Condenser Passes2 = 2 Pass

Digit 25 – Condenser Water ConnectionL = Left Hand ConnectionR = Right Hand Connection

Digit 26 – Condenser Connection TypeA = Standard Grooved PipeC = Marine

Digit 27 – Condenser Waterside PressureL = 150 psiH = 300 psi

15RLC-PRC020-EN

ModelNomenclature

A V X Q X E X A A B D Y 444 D A X A 4 X X X R X V X28 29 30 31 32 33 34 35 36 37 38 39 40,41,42 43 44 45 46 47 48 49 50 51 52 53 54

Digit 28 – Condenser Leaving WaterTemperatureA = Standard

Digit 29 – Refrigerant SpecialtiesX = No Refrigerant Isolation ValvesV = With Refrigerant Isolation Valves

Digit 30 – Oil CoolerX = Without Oil CoolerC = With Oil Cooler

Digit 31 – Thermal InsulationX = No InsulationQ = Factory Installed Insulation

Digit 32 – Acoustic InsulationX = No InsulationA = Standard Insulation

Digit 33 – Label and Literature LanguageC = SpanishE = EnglishF = French

Digit 34 – Safety DevicesX = Standard

Digit 35 – Factory ChargeA = Factory Refrigerant Charge (134a)B = Factory Nitrogen Charge

Digit 36 – Shipping PackageA = No Skid (standard)B = Shrink WrapC = SkidD = Skid + Shrink WrapJ = Special

Digit 37 – Flow SwitchX = No Flow SwitchA = Evaporator (NEMA 1)B = Evaporator and Condenser (NEMA 1)C = Evaporator (NEMA 4)D = Evaporator and Condenser (NEMA 4)

Digit 38 – Factory TestX = Standard TestC = Witness TestD = Performance Test

Digit 39 – Starter TypeY = Wye Delta Closed Transition StarterA = Solid State Starter

Digits 40, 41, 42 – Design RLA (for starter)*** = Selection Assigned

Digit 43 – Power Line Connection TypeA = Terminal BlocksB = Mechanical Disconnect SwitchD = Circuit BreakerF = High Interrupt Circuit BreakerH = Ground Fault Circuit BreakerJ = Ground Fault High Interrupt Circuit

Breaker

Digit 44 – Enclosure TypeA = NEMA 1

Digit 45 – Under/Over Voltage ProtectionX = NoneU = With Under/Over Voltage Protection

Digit 46 – Operator Interface LanguageA = Dyna-View/EnglishB = Dyna-View/FrenchC = Dyna-View/ItalianD = Dyna-View/SpanishE = Dyna-View/GermanF = Dyna-View/DutchG = Dyna-View/Traditional ChineseH = Dyna-View/Simple ChineseJ = Dyna-View/JapaneseK = Dyna-View/PortugueseL = Dyna-View/KoreanM = Dyna-View/Thai

Digit 47 – Digital Communication InterfaceX = None4 = Tracer Interface5 = LCI-C (LonTalk)

Digit 48 – External Chilled Water and CurrentLimit SetpointX = None4 = 4-20mA input2 = 2-10Vdc

Digit 49 – External Base LoadingX = None4 = 4-20mA input2 = 2-10Vdc input

Digit 50 – IcemakingX = NoneA = Icemaking with RelayB = Icemaking without Relay

Digit 51 – Programmable RelaysX = NoneR = With

Digit 52 – Chilled Water ResetX = Chilled Water Reset – Return WaterT = Chilled Water Reset – Outdoor Air

Temperature

Digit 53 – Control OutputsX = NoneV = Condenser Regulating Valve Control &

Percent RLAP = Condenser Pressure (% HPC) & Percent

RLAD = Chiller Differential Pressure & Percent

RLA

Digit 54 – Refrigerant Monitor InputX = NoneA = 100 ppm / 4-20mAB = 1000 ppm / 4-20mAC = 100 ppm / 2-10VdcD = 1000 ppm / 2-10Vdc

RLC-PRC020-EN16

Nominal DataNominal Compressor B1 B2 C1 C2 D1 D2 D3 E3Tonnage (60 Hz) 175-200 200-225 225-275 275-325 325-400 375-450 N/A N/ATonnage (50 Hz) 125-150 150-175 175-225 225-275 275-325 300-350 325-375 375-450Notes:1. Chiller selections can be optimized through the use of the ARI-Certified Series R selection program and by contacting your localTrane sales office.

General Data

General DataEvaporator Condenser Refrigerant

Compressor Evaporator Condenser Water Storage Water Storage Refrigerant ChargeCode Code Code Gallons Liters Gallons Liters Type lb kgB1 B1 B1 41 155 28 106 HFC-134a 410 186B1 C1 D1 55 208 31 117 HFC-134a 490 222B2 B2 B2 45 170 29 110 HFC-134a 410 186B2 C2 D2 58 220 34 129 HFC-134a 490 222C1 D6 E5 45 170 29 110 HFC-134a 490 222C1 D5 E4 52 197 32 121 HFC-134a 490 222C1 E1 F1 82 310 60 226 HFC-134a 525 238C2 D4 E4 52 197 32 121 HFC-134a 490 222C2 D3 E3 78 295 47 178 HFC-134a 490 222C2 F2 F3 107 405 61 231 HFC-134a 625 284D1 D1 E1 69 261 44 166 HFC-134a 475 216D1 F1 F2 102 386 57 216 HFC-134a 625 284D11 G1 G1 136 515 79 299 HFC-134a --- ---D12 G2 G2 144 545 91 344 HFC-134a 700 318D2 D2 E2 74 280 47 178 HFC-134a 475 216D2 F2 F3 107 405 61 231 HFC-134a 625 284D21 G2 G1 144 545 79 299 HFC-134a --- ---D22 G3 G3 159 602 97 367 HFC-134a 700 318

D3/E31 D2 E2 74 280 47 178 HFC-134a 475 216D3/E31 F2 F3 107 405 61 231 HFC-134a 625 284D3/E31 G2 G1 144 545 79 299 HFC-134a --- ---

Notes:1. 50 Hz units only.2. 60 Hz units only.

17RLC-PRC020-EN

General Data

Minimum/Maximum Evaporator Flow Rates (Gallons/Minute )Two Pass Three Pass Four Pass

Evaporator Nominal Nominal NominalCode Min Max Conn Size (In.) Min Max Conn Size (In.) Min Max Conn Size (In.)B1 253 1104 8 168 736 6 —- —- —-B2 288 1266 8 192 844 6 —- —- —-C1 320 1412 8 213 941 6 —- —- —-C2 347 1531 8 232 1022 6 —- —- —-D1 415 1812 8 275 1206 8 —- —- —-D2 450 1980 8 300 1320 8 —- —- —-D3 486 2131 8 324 1417 8 —- —- —-D4 351 1542 8 234 1028 8 —- —- —-D5 351 1542 8 234 1028 8 —- —- —-D6 293 1287 8 196 860 8 —- —- —-E1 450 1980 8 300 1320 8 —- —- —-F1 563 2478 10 376 1655 8 —- —- —-F2 604 2667 10 404 1780 8 —- —- —-G1 —- —- —- 505 2218 10 379 1666 8G2 —- —- —- 550 2413 10 411 1807 8G3 —- —- —- 622 2732 10 466 2050 8

Notes:1. Minimum flow rates are based on water only.2. All water connections are grooved pipe.

Minimum/Maximum Evaporator Flow Rates (Liters/Second)Two Pass Three Pass Four Pass

Evaporator Nominal Nominal NominalCode Min Max Conn Size (mm) Min Max Conn Size (mm) Min Max Conn Size (mm)B1 16 70 200 11 46 150 —- —- —-B2 18 80 200 12 53 150 —- —- —-C1 20 89 200 13 59 150 —- —- —-C2 22 97 200 15 65 150 —- —- —-D1 26 114 200 17 76 200 —- —- —-D2 28 125 200 19 83 200 —- —- —-D3 31 134 200 20 89 200 —- —- —-D4 22 97 200 15 65 200 —- —- —-D5 22 97 200 15 65 200 —- —- —-D6 18 81 200 12 54 200 —- —- —-E1 28 125 200 19 83 200 —- —- —-F1 36 156 250 24 104 200 —- —- —-F2 38 168 250 25 112 200 —- —- —-G1 —- —- —- 32 140 250 24 105 200G2 —- —- —- 35 152 250 26 114 200G3 —- —- —- 39 172 250 29 129 200


Minimum/Maximum Condenser Flow Rates(Gallons/Minute)

Two PassCondenser Nominal

Code Min Max Conn Size (In.)B1 193 850 6B2 212 935 6D1 193 850 6D2 212 935 6E1 291 1280 8E2 316 1390 8E3 325 1420 8E4 245 1080 8E5 206 910 8F1 375 1650 8F2 355 1560 8F3 385 1700 8G1 444 1960 8G2 535 2360 8G3 589 2600 8


Minimum/Maximum Condenser Flow Rates (Liters/Second)


Code Min Max Conn Size (mm)B1 12 54 150B2 13 59 150D1 12 54 150D2 13 59 150E1 18 81 200E2 20 88 200E3 21 90 200E4 15 68 200E5 13 57 200F1 24 104 200F2 22 98 200F3 24 107 200G1 28 124 200G2 34 149 200G3 37 164 200


Water Flow Rates

RLC-PRC020-EN18

Minimum/Maximum Evaporator Flow Rates (GPM)Two Pass Three Pass Four Pass

Evaporator Nominal Nominal NominalCode Min Max Conn Size (In.) Min Max Conn Size (In.) Min Max Conn Size (In.)B1 303 1104 8 200 736 6 —- —- —-B2 346 1266 8 233 844 6 —- —- —-C1 346 1412 8 254 941 6 —- —- —-C2 375 1531 8 276 1022 6 —- —- —-D1 498 1812 8 330 1206 8 —- —- —-D2 541 1980 8 357 1320 8 —- —- —-D3 584 2131 8 389 1417 8 —- —- —-D4 422 1542 8 281 1028 8 —- —- —-D5 422 1542 8 281 1028 8 —- —- —-D6 352 1287 8 233 860 8 —- —- —-E1 487 1980 8 357 1320 8 —- —- —-F1 676 2478 10 454 1655 8 —- —- —-F2 725 2667 10 487 1780 8 —- —- —-G1 —- —- —- 606 2218 10 454 1666 8G2 —- —- —- 660 2413 10 492 1807 8G3 —- —- —- 747 2732 10 557 2050 8

Notes:1. Minimum flow rates are based on brine solution.2. All water connections are grooved pipe.

General Data

Minimum/Maximum Evaporator Flow Rates (Liters/Second)Two Pass Three Pass Four Pass

Evaporator Nominal Nominal NominalCode Min Max Conn Size (mm) Min Max Conn Size (mm) Min Max Conn Size (mm)B1 19 70 200 13 46 150 —- —- —-B2 22 80 200 15 53 150 —- —- —-C1 22 89 200 16 59 150 —- —- —-C2 23 97 200 17 65 150 —- —- —-D1 31 114 200 21 76 200 —- —- —-D2 34 125 200 23 83 200 —- —- —-D3 37 134 200 25 89 200 —- —- —-D4 27 97 200 18 65 200 —- —- —-D5 27 97 200 18 65 200 —- —- —-D6 22 81 200 15 54 200 —- —- —-E1 28 125 200 23 83 200 —- —- —-F1 43 156 250 29 104 200 —- —- —-F2 46 168 250 31 112 200 —- —- —-G1 —- —- —- 38 140 250 29 105 200G2 —- —- —- 42 152 250 31 114 200G3 —- —- —- 47 172 250 35 129 200


Minimum/Maximum Condenser Flow Rates(GPM)


Code Min Max Conn Size (In.)B1 230 850 6B2 255 935 6D1 230 850 6D2 255 935 6E1 350 1280 8E2 380 1390 8E3 390 1420 8E4 295 1080 8E5 250 910 8F1 450 1650 8F2 430 1560 8F3 460 1700 8G1 530 1960 8G2 650 2360 8G3 710 2600 8


Minimum/Maximum Condenser Flow Rates(Liters/Second)


Code Min Max Conn Size (mm)B1 15 54 150B2 16 59 150D1 15 54 150D2 16 59 150E1 22 81 200E2 24 88 200E3 25 90 200E4 19 68 200E5 16 57 200F1 28 104 200F2 27 98 200F3 29 107 200G1 33 124 200G2 41 149 200G3 45 164 200


Brine Flow Rates

19RLC-PRC020-EN

Electrical Dataand Connections

Compressor Motor Electrical Data (60 Hertz)Nominal Voltage 200 230 380 460 575

Compressor Voltage 180/ 208/ 342/ 414/ 516/Code Utilization Range 220 254 418 506 633

Max kW 174 174 174 174 174B1, B2 RLA @ Max kW 557 484 291 241 193

LRAY 970 818 488 400 329LRAD 3103 2617 1561 1280 1053

Max kW 249 249 249 249 249C1, C2 RLA @ Max kW 812 698 421 349 279

LRAY 1173 936 558 469 375LRAD 3634 2901 1727 1453 1162

Max kW 329 329 329 329 329D1, D2 RLA @ Max kW 888 888 549 455 367

LRAY 1690 1532 850 730 612LRAD 5477 4966 2755 2366 1984

Notes:1. See Selection Procedure Section for details.2. The RLA @ Max kW is based on the performance of the motor developing full rated horsepower.3. Electrical component sizing should be based on actual jobsite operating conditions. This factor can be obtained through the

use of the Series R chiller selection program available through local Trane sales offices.

Compressor Motor Electrical Data (50 Hertz)Nominal Voltage 380 400 415

Compressor Voltage 342/ 360/ 374/Code Utilization Range 418 440 457

Max kW 139 145 148B1, B2 RLA @ Max kW 233 233 233

LRAY 391 412 428LRAD 1229 1296 1348

Max kW 201 209 213C1, C2 RLA @ Max kW 349 349 349

LRAY 456 480 498LRAD 1414 1488 1544

Max kW 271 280 284D1, D2, D3 RLA @ Max kW 455 455 455

LRAY 711 748 776LRAD 2303 2424 2515

Max kW 288 301 306E3 RLA @ Max kW 488 488 488

LRAY 711 748 776LRAD 2303 2424 2515

Notes:1. See Selection Procedure Section for details.2. The RLA @ Max kW is based on the performance of the motor developing full rated horsepower.3. Electrical component sizing should be based on actual jobsite operating conditions. This factor can be obtained through theuse of the Series R chiller selection program available through local Trane sales offices.

Electrical ConnectionsStarter Panel Selection Lug SizeConnection RLA L1-L3 (Each Phase)

Terminals Only 000-760 (2) #4-500 MCM761-888 (4) 4/0-500 MCM

Main Circuit 000-185 (1) #4-350 MCMBreaker or 186-296 (2) 2/0-250 MCMNon-Fused 297-444 (2) 3/0-350 MCM

Disconnect Switch 445-592 (2) #1-500 MCM593-888 (4) 4/0-500 MCM

Note:1. Lug sizes are independent of starter type.

RLC-PRC020-EN20


21RLC-PRC020-EN


RLC-PRC020-EN22

Shipping and Operating WeightsCompressor Evaporator Condenser Operating Weight Shipping Weight

Code Code Code (lbs) (kg) (lbs) (kg)B1 B1 B1 9,867 4,476 9,292 4,215B1 C1 D1 10,554 4,787 9,837 4,462B2 B2 B2 10,019 4,545 9,402 4,265B2 C2 D2 10,653 4,832 9,953 4,515C1 D6 E5 13,397 6,077 12,780 5,797C1 D5 E4 13,673 6,202 12,973 5,884C1 E1 F1 15,818 7,175 14,718 6,676C2 D4 E4 13,672 6,201 12,972 5,884C2 D3 E3 15,044 6,824 14,002 6,351C2 F2 F3 17,560 7,965 16,168 7,334D1 D1 E1 15,385 6,978 14,443 6,551D1 F1 F2 17,537 7,955 16,187 7,342D1 G1 G1 20,500 9,299 18,600 8,437D1 G2 G2 21,065 9,555 19,107 8,667

D2, D3 D2 E2 15,570 7,062 14,562 6,605D2, D3 F2 F3 18,220 8,264 16,820 7,629D2, D3 G2 G1 20,700 9,389 18,700 8,482D2, D3 G3 G3 21,641 9,816 19,508 8,849

E3 D2 E2 15,728 7,134 14,720 6,677E3 F2 F3 18,356 8,326 16,956 7,691E3 G2 G1 20,800 9,435 18,800 8,528

E3 G3 G3 21,786 9,882 19,653 8,914Notes:1. All weights +- 3%.2. Shipping weights include standard 150 psig water boxes, refrigerant charge, and oil charge.3. Operating weights include refrigerant, oil, and water charges.

Dimensions andWeights

23RLC-PRC020-EN


BBB ConfigurationRecommended Clearances

Front 36" (914 mm)Back 36" (914 mm)Either End 36" (914 mm)Other End* 108" (2743 mm)Top 36" (914 mm)

* Clearance for tube removalNote:1. Dimensions are based on 3 Pass Evap / 2 Pass

Cond and LH/LH water connections. Refer tosubmittals for exact configuration.

2. Refer to the Nominal Capacity Data table in theGeneral Data section for capacity ranges of eachcompressor.

RLC-PRC020-EN24


BCD ConfigurationRecommended Clearances





25RLC-PRC020-EN


CDE, DDE, EDE ConfigurationRecommended Clearances





RLC-PRC020-EN26


CEF ConfigurationRecommended Clearances





27RLC-PRC020-EN


CFF, DFF, EFF ConfigurationRecommended Clearances





RLC-PRC020-EN28


DGG, EGG ConfigurationRecommended Clearances





29RLC-PRC020-EN

MechanicalSpecifications

GeneralExposed metal surfaces are painted withair-dry beige, direct-to-metal, single-component paint. Each unit ships with fulloperating charges of refrigerant and oil.Molded neoprene isolation pads aresupplied for placement under all supportpoints. Startup and operator instructionby factory-trained service personnel areincluded.

Compressor and MotorThe unit is equipped with a semi-hermetic, direct-drive, 3600-rpm (3000rpm @ 50 Hz) rotary compressor thatincludes a capacity control slide valve, oilsump heater, and differential pressurerefrigerant oil flow system. Fourpressure-lubricated, rolling-elementbearing groups support the rotatingassembly.

The motor is a suction gas-cooled,hermetically sealed, two-pole, squirrelcage induction-type.

Unit-Mounted StarterThe unit is supplied with a NEMA 1 typeenclosure with top power-wiring accessand three-phase, solid state overloadprotection. The starter is available in aWye-Delta configuration, factory-mounted and fully pre-wired to thecompressor motor and control panel. Afactory-installed, factory-wired 600VAcontrol power transformer provides allunit control power (120 VAC secondary)and CH530 module power (24 VACsecondary). Optional starter featuresinclude circuit breakers, ground faultcircuit breakers, and mechanical, non-fused disconnects.

Evaporator and CondenserShells are carbon steel plate. Theevaporator and condenser are designed,tested, and stamped in accordance withASME Code for refrigerant-side/working-side pressure of 200 psig.

All tube sheets are made of carbon steel;tubes are mechanically expanded intotube sheets and mechanically fastened totube supports. Evaporator tubes are 1.0-inch (25.4 mm) diameter and condensertubes are 0.75-inch(19.05 mm) diameter. Both types can beindividually replaced. Standard tubes areexternally finned, internally enhancedseamless copper with lands at all tubesheets.

All water pass arrangements areavailable with grooved connections (150or 300 psig waterside). All connectionsmay be either right- or left-handed.Waterside shall be hydrostatically testedat 1.5X design working pressure.

Refrigerant CircuitAn electronically controlled expansionvalve is provided to maintain properrefrigerant flow.

Unit Controls (CH530)The microprocessor-based control panelis factory-installed and factory-tested. Thecontrol system is powered by a controlpower transformer, and will load andunload the chiller through adjustment ofthe compressor slide valve.Microprocessor-based chilled water resetbased on return water is standard.

The CH530 microprocessor automaticallyacts to prevent unit shutdown due toabnormal operating conditionsassociated with low evaporatorrefrigerant temperature, high condensingtemperature, and/or motor currentoverload. If an abnormal operatingcondition continues and the protectivelimit is reached, the machine should shutdown.

The panel includes machine protectionshutdown requiring manual reset for thefollowing conditions:• low evaporator refrigerant temperature

and pressure• high condenser refrigerant pressure• low oil flow• critical sensor or detection circuit faults• motor current overload• high compressor discharge temperature• lost communication between modules• electrical distribution faults: phase loss,

phase imbalance, or phase reversal• external and local emergency stop• starter transition failure

The panel also includes machineprotection shutdown with automaticreset for the following correctableconditions:• momentary power loss• under/over voltage• loss of evaporator or condenser water

flow

When a fault is detected, the controlsystem conducts more than 100diagnostic checks and displays results.

The display will identify the fault, indicatedate, time, and operating mode at time ofoccurrence, and provide type of resetrequired and a help message. Thediagnostic history will display the last tendiagnostics with their times and dates ofoccurrence.

Clear Language Display PanelFactory-mounted to the control paneldoor, the operator interface has an LCDtouch-screen display for operator inputand information output. This interfaceprovides access to the followinginformation: evaporator report,condenser report, compressor report,ASHRAE Guideline 3 report, operatorsettings, service settings, service tests,and diagnostics. All diagnostics andmessages are displayed in “clearlanguage.”

Data contained in available reportsincludes:• Water and air temperatures• Refrigerant levels and temperatures• Oil pressure• Flow switch status• EXV position• Head pressure control command• Compressor starts and run-time• Line phase percent RLA, amps, and

volts

All necessary settings and setpoints areprogrammed into the microprocessor-based controller via the operatorinterface. The controller is capable ofreceiving signals contemporaneouslyfrom a variety of control sources, in anycombination, and priority order of controlsources can be programmed. The controlsource with priority determines activesetpoints via the signal it sends to thecontrol panel. Control sources may be:• the local operator interface (standard)• a hard-wired 4-20 mA or 2-10 VDC

signal from an external source(interface optional; control source notsupplied)

• Generic BAS (optional points; controlsource not supplied)

• LonTalk LCI-C (interface optional; controlsource not supplied)

• Trane Tracer Summit™ system (interfaceoptional)

RLC-PRC020-EN30

Conversion Table

31RLC-PRC020-EN

Trane has a policy of continuous product and product data improvement and reserves the right to change designand specifications without notice.

Literature Order Number

File Number

Supersedes

Stocking LocationTrane

A business of American Standard Companies

www.trane.com

For more information, contactyour local sales office ore-mail us at [email protected].

RLC-PRC020-EN

PL-RF-RLC-000-PRC020-EN-1106

RLC-PRC020-EN-00606

Electronic Only

Applications in this catalog specificallyexcluded from the ARI certificationprogram are:• Low temperature applications, including

ice storage• Glycol• 50Hz units below 200 nominal tons

Rlc-prc020-En 2006 11 Catalog

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