Page 2 - Introduction; Built For The Industrial Market
CTV-PRC007-EN ©American Standard Inc. 2001 What We Mean By Earth•WiseBreaking the .48 kW/TonEfficiency Barrier The Trane Earth • Wise CenTraVac has a proven track record as literally theworld’s most efficient, lowest emissionschiller. In fact, a portion of the productline is selectable at an unmatch...
Page 3 - Contents
3 CTV-PRC007-EN Contents Introduction Features and Benefits Components, Standard and Optional Features,Factory Performance Testing,Refrigeration Cycle, Control Panel Unit Options Unit Mounted Starter, Adaptive Frequency Drives,Free Cooling System Options Auxiliary Condenser, Ice Storage, Heat Recove...
Page 4 - A Tradition of Innovation; Unmatched Expertise
CTV-PRC007-EN 4 Introduction The first Trane centrifugal chiller, theTurbovac ™ was introduced in 1938. The simple, direct drive, slow speed designof the Turbovac revolutionized the airconditioning industry. The chiller wasattractive to customers because itshermetic design reduced frequentservice re...
Page 7 - Operator Control Panel; Capabilities include:
7 CTV-PRC007-EN Operator Control Panel Trane has multi-language support for allchillers controlled by the UCP2 ™ including but limited to: CVHE, CVHF,CVHG, GPC and LHCV alarm. Thestandard Clear Language Display (CLD)supports eight languages includingEnglish, French, German, Spanish,Katakana, Italian...
Page 8 - Components
CTV-PRC007-EN 8 Internally enhanced orsmooth bore tubes Various tube materialsand thicknesses Controls and paints for outdooruse or corrosive environments Marine or standardwaterboxes 1, 2, 3, pass evaporator Factory installed insulation UL label Full complement of electricalstarters and accessories...
Page 9 - Standard Features; CenTraVac Motor; Optional Features
9 CTV-PRC007-EN Standard Features The following features are provided asstandard with all Trane CenTraVac ™ chillers: • Motor-compressor assembly withintegral lubrication system. • Evaporator condenser assembly. • Two-stage economizer assembly onCVHE/CVHG style units (single-stage onCVHF style units...
Page 12 - CenTraVac
CTV-PRC007-EN 12 CenTraVac ™ Three-Stage P-H Diagram The pressure-enthalphy (P-H) diagramdescribes refrigerant flow through themajor CVHE/CVHG chiller components.This diagram confirms the superioroperating cycle efficiency of the three-stage compressor and two-stageeconomizer. Evaporator — A liquid-...
Page 13 - Unit-Mounted Starters; Benefits
13 CTV-PRC007-EN UnitOptions Unit-Mounted Starters Trane factory installed options makeinstallation of a CenTraVac ™ chiller easier, faster and less costly. Another exampleof the Trane packaged concept is thefactory installed unit-mounted star deltastarter available on CenTraVac chillers upto 1300 t...
Page 14 - Features
CTV-PRC007-EN 14 Figure O-2 – Typical Equipment Room Layout – Unit-Mounted Star-Delta Starter Figure O-1 – Typical Equipment Room Layout – Conventional Remote Star-Delta Starter • System Design Time Cost Savings System design time is reduced, sinceall starter components andinterconnecting wiring are...
Page 16 - To Avoid Mechanical Stress
CTV-PRC007-EN 16 UnitOptions AdaptiveFrequency Drives Figure O-4 — CVHE500 Part Load Efficiencies with/without AFD Benefits Trane Adaptive Frequency drives*provide motor control, but they aremuch more than just starters. They alsocontrol the operating speed of the chillercompressor motor by regulati...
Page 18 - Free Cooling
CTV-PRC007-EN 18 Benefits The Trane patented free coolingaccessory for Trane CenTraVac ™ chillers adapts the basic chiller so it mayfunction as a simple heat exchangerusing refrigerant as the working fluid.When condenser water is available attemperatures lower than the desiredchilled liquid temperat...
Page 19 - Operation
19 CTV-PRC007-EN Free Cooling UnitOptions Temperature and humidity controlrequirements are importantconsiderations when evaluating the useof CenTraVac free cooling. Lowtemperature outside air (from theoutside air economizer) often requires alarge amount of energy forhumidification purposes. Free coo...
Page 20 - Auxiliary Condenser
CTV-PRC007-EN 20 SystemOptions AuxiliaryCondenser Auxiliary Condenser The Trane auxiliary condenser provideseconomical heat recovery forapplications with small heating demand.It’s well-suited to preheat applicationsincluding domestic hot water, boilermakeup water and swimming pools. The Trane auxili...
Page 22 - Ice Storage
CTV-PRC007-EN 22 Ice Storage ProvidesReduced Electrical Demand Ice storage is the hottest thing in coolingtoday. It has been accepted by buildingowners and tenants who are concernedabout utility costs. An ice storage system uses a standardchiller to make ice at night when utilitiescharge less for el...
Page 23 - Heat Recovery
23 CTV-PRC007-EN Heat Recovery SystemOptions Heat Recovery Use of the Heat Recovery CenTraVac ™ can significantly reduce the energyoperating costs of many buildings byusing heat which normally would berejected to the atmosphere. Typical usesfor this heat are perimeter zone heating,reheat air conditi...
Page 24 - Simultaneous Heating and Cooling; System Design Considerations
CTV-PRC007-EN 24 Simultaneous Heating and Cooling The Trane Heat Recovery CenTraVac ™ chiller is an excellent choice forapplications requiring simultaneousheating and cooling. CenTraVac modelssave energy by recovering heat normallyrejected to the atmosphere and puttingthat energy to use providing sp...
Page 25 - Chilled Water Reset
25 CTV-PRC007-EN SystemOptions Chilled WaterReset Chilled Water Reset — Chilled water reset is often a practical means ofreducing energy consumption duringperiods of the year when heating loadsare high but cooling loads are reduced.Resetting the chilled water temperatureincreases the evaporator refr...
Page 27 - Condenser Water Limitations; Water Treatment; Electrical Information; Minimum Circuit Ampacity
27 CTV-PRC007-EN Condenser Water Limitations Trane CenTraVac ™ chillers start and operate over a range of load conditionswith controlled water temperatures.Reducing the condenser watertemperature is an effective method oflowering the chiller power input.However, the effect of lowering thecondenser w...
Page 28 - Selection; Trane Model Number; Performance
CTV-PRC007-EN 28 Selection The CenTraVac ™ centrifugal chiller product line provides more than 200,000individual unit selections over a capacityrange of 170 through 3500 tons. Chillerselections and performance data can beobtained through the use of theCenTraVac chiller selection programavailable in ...
Page 29 - Roughing-in Dimensions; Part Load Performance
29 CTV-PRC007-EN Roughing-in Dimensions The dimensional drawings illustrateoverall measurements of the chiller. Therecommended space envelope indicatesclearances required to easily service theCenTraVac chiller. A view of the unit issuperimposed on this drawing with unitsupport feet shown. All catalo...
Page 32 - Shipment and Assembly; Terminal lugs are field-
CTV-PRC007-EN 32 Figure J-1 — Electric Connections Shipment and Assembly All style hermetic CenTraVac ™ units ship as a factory assembled, factory testedpackage, ready to rig into place onfactory supplied isolation pads. JobsiteConnections Supply and Motor Lead Wiringand Connections Copper conductor...
Page 33 - Controls
33 CTV-PRC007-EN Controls Advanced Controls Trane set the standard for unitmicroprocessor controls in 1985 with thefirst generation Unit control panel.Associated with this standard have been: • Proportional Integral Derivative (PID)control strategies which provide stableoperation and higher accuracy...
Page 34 - Control of the auxiliaries:
CTV-PRC007-EN 34 Controls Building Automation and Chiller PlantControl For building automation and control ofchilled water plants, Trane hasdeveloped the Tracer Summit ™ . It can control the operation of the completeinstallation: chillers, pumps, coolingtowers, isolating valves, air handlers andterm...
Page 35 - Control Functions
35 CTV-PRC007-EN Controls Optimal Performance Regardless of the system level beingdesigned, the unit controls becomecritical not just in making every leveloperate reliably but in facilitating optimalperformance. UCP2 provides morecapability and more intelligence to makethis operation/ optimization p...
Page 39 - Weights
39 CTV-PRC007-EN 60 Hz Compressors(English & SI Units) Weights Operating Weight** Shipping Weight** TYPE NTON CPKW EVSZ CDSZ (lbs) (kg) (lbs) (kg) CVHE 230-320 287 032S 032S 14909 6763 13721 6224 CVHE 230-320 287 032S 032L 15548 7053 14265 6471 CVHE 230-320 287 032L 032L 16422 7449 14911 6764 CV...
Page 51 - Trane Adaptive Frequency; AFD Design Features
51 CTV-PRC007-EN Trane Adaptive Frequency ™ Drive (AFD) The Trane AFD is a closed-loop, liquid-cooled, microprocessor based PWMdesign that converts fixed utility voltageand frequency to a variable voltage andfrequency via a two-step operation. TheAFD is both voltage and currentregulated. Output powe...