Air-Cooled Liquid Chillers - Trane

1 Air-CooledLiquid ChillersModels CGA and CGAF10 to 60 TonsCG-PRC007-ENJune 2006 2006 American Standard Inc. All rights reservedCG-PRC007-ENIntroduction10, 15 Tons20 60 TonsDesign and manufacturing excellencemakes Trane a leader in the air-cooledchiller marketplace. For over 40 years, Trane has been using the bestengineering available in development,manufacturing, and marketing toproduce quality products. This traditionof using excellence to meet marketdemands is illustrated with the Trane 10to 60-ton Air-Cooled and BenefitsControlsApplication ConsiderationsModel Number DescriptionGeneral DataSelection ProcedurePerformance Adjustment FactorsPerformance DataElectrical DataDimension DataWeightsMechanical Specifications24916212223242838404849CG- PRC007-EN4 Features andBenefitsInstallationSmall size, complete factory wiring, easylifting provisions, factory installedoptions and start-up control provide fast,easy installation.

2 A complete factory runtest is performed on each unit,eliminating potential start-up Comfort SystemsAll Trane Chillers are ICS compatible. Asimple twisted wire pair is all it takes tohook an Air-Cooled chiller into a Tracersystem. An ICS system provides themost advanced diagnostics, monitoring,and control that the industry can Trane can supply the entire provides comfort with one word Stock IncreasesProject FlexibilityTrane 10 to 60-ton Air-Cooled chillersare available through the most flexiblepacked stock program in the knows you want your units onthe jobsite, on time, when you needthem. To help meet this demand, Tranekeeps a multitude of unit sizes andvoltages in packed stock. Many ofthese include optional features such asisolators, low ambient head pressurecontrols and refrigerant gauge no longer have to settle for ascaled-down, basic unit to meet yourjob schedule.

3 In many cases, units canbe shipped directly to the jobsite frompacked stock!10 60 Ton5CG-PRC007-ENFeatures andBenefitsThe 10 and 15-ton Air-Cooled ColdGenerator Chillers , with Trane directdrive hermetic scroll compressors, hasoutstanding standard features andadditional benefits that make selection,installation, and servicing to the design of any project is theoperating envelope of the air-cooledpackaged chiller . With this in mind, Tranebuilds the Chillers to make the mostefficient use of the available installationspace. The Trane CGA model Chillers areextremely compact. They have thelightest weight, the smallest footprint,and the lowest silhouette of any chiller inthe WeightThese lightweight models afford lessstress on building supports and greaterhandling time and effort are reducedwhen dealing with a significantly smallerand lighter unit.

4 In addition, havingelectrical and water connections on thesame side of the unit and a single-pointmain power connection serves to makeinstallation easier. The unit arrives at thejobsite fully assembled, tested, chargedand ready to provide chilled of ServiceThe control panel and unit panels arecompletely removable for serviceaccessibility and InterfaceCommunication with Trane Tracer orTracker is possible through the ICSI nterface on the 10 and 15 ton ColdGenerator Features Hot Gas Bypass Allows unitoperation below the minimum step ofunloading. Low Ambient Head Pressure Control Modulates the rpm of the fan motorin response to outdoor ambienttemperature and unit head unit cooling operation downto outdoor temperatures of 0 F. Coil Guard Metal grille with PVCcoating to protect the condenser coil. Isolation Neoprene in shear orspring flex isolators.

5 Power Supply Monitor Providesprotection against phase loss, phasereversal, phase imbalance, incorrectphase sequence and low line voltage. Elapsed Time Meter/Number StartsCounter Records number ofcompressor starts and operatinghours. Flow Switch Required as a safetyinterlock to prevent operation of unitwithout evaporator flow (availableoption for field installation only). Integrated Comfort Systems (ICS)Interface Provides the ability tocommunicate with Trane Tracer orTracker building management systemsvia a Thermostat Control Module (TCM). Gauges Monitor suction anddischarge 15 TonCG-PRC007-EN6 Features andBenefits20 60 TonOther Standard Features Trane 3-D Scroll compressors Advanced motor protection 300 psi waterside evaporator Evaporator insulation ( -inchArmaflex II or equivalent) Evaporator heat tape (thermostatcontrolled) Condenser coil guards Operation down to 30 F withoutadditional wind baffles or headpressure control Loss of flow protection UL and CSA approval available Packed stock availability Control Power Transformer Low ambient lockout Plain English (Spanish/French)

6 Human Interface display Smart Lead/Lag operation Integrated chilled solution pumpcontrol Selectable process or comfort controlalgorithm External auto/stop Electronic low ambient dampercontrol integrated into UCM Flow switch Strainer/connection kitTrane s 20-60 ton Chillers offer the sametime-tested and proven controltechnology that is applied to theIntelliPak Air cooled control makes the IntelliPak atruly advanced FeaturesMicroprocessor ControlThe IntelliPak chiller s Unit ControlModule (UCM) is an innovative,modular microprocessor controldesign. It coordinates the actions of thechiller in an efficient manner andprovides stand-alone operation of theunit. A Human Interface (HI) Panel is astandard component of the IntelliPakChiller. Access to all unit controls is viathe Human Interface Run TestingIn addition to outstanding efficientperformance, IntelliPak Chillers haveestablished a reputation for reliableoperation.

7 Aside from the individualcomponent tests, all Trane 20 to 60-tonchillers are factory run tested withwater running through the evaporatorto confirm proper operation. Controloperation and current draw are bothmonitored to assure safe, Features Controls for ice making operationMiscellaneous Options Trane Communications InterfaceModule (TCI) Unit Mounted Disconnect Isolators Superheat/Sub-Cooling Module Hot Gas Bypass Generic B A S Modules with 0-10 vanalog input/output, 0-5 v analoginput/binary output Remote Human Interface Panel(RHI) Remote Set point Potentiometer Zone Sensor (Chilled SolutionReset) Copper Fin Condenser Coils Electronic Low Ambient Damper(s) Inter-Processor CommunicationBridge (IPCB) Ice building control Other optionsIn addition to all of these options, Tranecan offer in-house design for manyapplications, including special andBenefitsEnhanced ControlsIntelliPak chiller Unit Control Module(UCM)

8 The brain of the 20 to 60 ton air-cooledchiller is its Unit Control Module (UCM).Access to the unit controls is via aHuman Interface (HI) Panel, a standardcomponent of the IntelliPak chiller . Thispanel provides a high degree of monitoring capability andunmatched diagnostic information isprovided through a 2 line 40 characterper line, English language are no diagnostic codes requiring a translation key forinterpretation. All system statusinformation and control adjustmentscan be made from the onboard HumanInterface Integrated Comfort System The Industry s Most Advanced Comfort SystemICS gives you the most powerfulmonitoring and diagnostic systemavailable. Monitoring up to 30 individualpoints, the ICS can detect and correctproblems before a comfort level changeis even noticed. Advanced monitoringand diagnostics can help buildingowners to more effectively market theirbuildings to prospective ICS system is the most advancedcomfort system in the industry.

9 BecauseTrane has more experience with ICSthan all other equipment manufacturerscombined, you can feel secure knowingthat you are dealing with a proven trackrecord in building management. Trane isthe only brand that supplies the UCM allows the 20 to 60-tonIntelliPak chiller to be part of the factoryinstalled Integrated Comfort System(ICS). ICS joins the Trane Tracer buildingmanagement systems and Trane HVAC equipment by a single twisted wirepair. This allows bidirectionalcommunication between the Tracersystem and the unit mounted to the chiller s UCM, thissimple pair allows you to control,monitor, and diagnose your building scomfort system. The UCM is linked tothe Tracer system and theyelectronically talk to one ICS is factory-packaged, there isno need to install separate sensors tomonitor your chiller s operation.

10 All ofthe control points are on the controllerand ready to go when the unit hookup the Tracer system to theIntelliPak chiller with the twisted wirepair. This feature means lower installedcost, less chance for jobsite errors, lessdesign time on the front end of yourproject, and fewer control points forIntelliPak Chillers Chilled solution set point Default chilled solution set point Ice set point Default ice set point chiller enable point Failure mode Ice making enable point KW limit enable point Demand limiting cooling stages Default number of compressors Design delta temperature Control response set point Reset optionRemote Human Interface (RHI) The optional Remote Human Interface (RHI)performs the same functions as the Human Interface, with the exception of theservice mode. The RHI can be used with up to 4 Air-Cooled Chillers from a 60 TonCG-PRC007-EN8 Features andBenefitsTrane 3-D Scroll CompressorSimple Design with 70% Fewer PartsFewer parts than an equal capacityreciprocating compressor meanssignificant reliability and efficiencybenefits.