installation, operation and maintenance cvhl water-cooled … · 2021. 1. 22. · cvhl water-cooled...

CVHL Water-Cooled CenTraVac™ ChillersWith Tracer® AdaptiView™ Control

Installation, Operation and Maintenance

March 2020 CVHL-SVX01J-EN

Model: CVHL

SAFETY WARNINGOnly qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

X39641241090

CVHL-SVX01J-EN

IntroductionRead this manual thoroughly before operating orservicing this unit.

Warnings, Cautions, and NoticesSafety advisories appear throughout this manual asrequired. Your personal safety and the properoperation of this machine depend upon the strictobservance of these precautions.

The three types of advisories are defined as follows:

WARNINGIndicates a potentially hazardous situationwhich, if not avoided, could result in death orserious injury.

CAUTIONIndicates a potentially hazardous situationwhich, if not avoided, could result in minor ormoderate injury. It could also be used to alertagainst unsafe practices.

NOTICEIndicates a situation that could result inequipment or property-damage onlyaccidents.

Important Environmental ConcernsScientific research has shown that certain man-made chemicals can affect the earth’s naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants-including industry replacements for CFCs and HCFCs such as saturated or unsaturated HFCs and HCFCs.

Important Responsible RefrigerantPracticesTrane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified according to local rules. For the USA, the Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

©2020 Trane

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CVHL-SVX01J-EN 3

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This Installation, Operation, and Maintenancemanualapplies to CenTraVac™ chillers with two differentrefrigerant and compressor oil systems:

• R-123 refrigerant and OIL00022 compressor oil

• R-514A refrigerant and OIL00334/OIL00335compressor oil

IImmppoorrttaanntt:: Verify proper refrigerant and compressoroil for your chiller before proceeding!

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Factory Warranty InformationCompliance with the following is required to preservethe factory warranty:

AAllll UUnniitt IInnssttaallllaattiioonnss

Startup MUST be performed by Trane, or an authorizedagent of Trane, to VALIDATE this WARRANTY.Contractor must provide a two-week startupnotification to Trane (or an agent of Trane specificallyauthorized to perform startup).

AAddddiittiioonnaall RReeqquuiirreemmeennttss ffoorr UUnniittss RReeqquuiirriinnggDDiissaasssseemmbbllyy aanndd RReeaasssseemmbbllyy

When a new chiller is shipped and received from ourTrane manufacturing location and, for any reason, itrequires disassembly or partial disassembly, andreassembly— which could include but is not limited tothe evaporator, condenser, control panel, compressor/motor, economizer, purge, factory-mounted starter orany other components originally attached to the fullyassembled unit— compliance with the following isrequired to preserve the factory warranty:

• Trane, or an agent of Trane specifically authorizedto perform start-up and warranty of Trane®products, will perform or have direct on-sitetechnical supervision of the disassembly andreassembly work.

• The installing contractor must notify Trane—or anagent of Trane specifically authorized to performstartup and warranty of Trane® products—twoweeks in advance of the scheduled disassemblywork to coordinate the disassembly andreassembly work.

• Start-up must be performed by Trane or an agent ofTrane specifically authorized to perform startup andwarranty of Trane® products.

Trane, or an agent of Trane specifically authorized toperform start-up and warranty of Trane® products, willprovide qualified personnel and standard hand tools toperform the disassembly and reassembly work at alocation specified by the contractor. The contractorshall provide the rigging equipment such as chain falls,gantries, cranes, forklifts, etc. necessary for thedisassembly and reassembly work and the requiredqualified personnel to operate the necessary riggingequipment.

IInnttrroodduuccttiioonn

4 CVHL-SVX01J-EN

Trane CopyrightThis document and the information in it are theproperty of Trane, and may not be used or reproducedin whole or in part without written permission. Tranereserves the right to revise this publication at any time,and to make changes to its content without obligationto notify any person of such revision or change.

TrademarksAll trademarks referenced in this document are thetrademarks of their respective owners.

Factory TrainingFactory training is available through Trane University™to help you learn more about the operation and

maintenance of your equipment. To learn aboutavailable training opportunities contact TraneUniversity™.

Online: www.trane.com/traneuniversity

Phone: 855-803-3563

Email: [email protected]

Revision History• Updated the Water weights table and Waterbox

rigging and lifting figure in the Waterbox Removaland Installation chapter.

• Running edits.

IInnttrroodduuccttiioonn

www.trane.com/traneuniversitymail to:[email protected]

CVHL-SVX01J-EN 5

Unit Nameplate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Model Number Descriptions. . . . . . . . . . . . . . . . 9

Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11ASHRAE Standard 15 Compliance . . . . . . . . 11

Unit Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installation Requirements andContractor Responsibilities . . . . . . . . . . . . . . . 11

Storage Requirements . . . . . . . . . . . . . . . . . . . 13

Unit Components. . . . . . . . . . . . . . . . . . . . . . . . 15

Unit Clearances and Weights . . . . . . . . . . . . . . 16Recommended Unit Clearances. . . . . . . . . . . 16

General Weights. . . . . . . . . . . . . . . . . . . . . . . . . 17Weights (lb) . . . . . . . . . . . . . . . . . . . . . . . . . 17Weights (kg) . . . . . . . . . . . . . . . . . . . . . . . . . 17

Installation: Mechanical . . . . . . . . . . . . . . . . . . . 19Operating Environment . . . . . . . . . . . . . . . . . . 19

Foundation Requirements . . . . . . . . . . . . . . . . 19

Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Standard Chiller Lift . . . . . . . . . . . . . . . . . . 19Special Lift Requirements. . . . . . . . . . . . . 21

Unit Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Isolation Pads . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Spring Isolators . . . . . . . . . . . . . . . . . . . . . . . . . 21

Leveling the Unit . . . . . . . . . . . . . . . . . . . . . . . . 23

Installation: Water Piping . . . . . . . . . . . . . . . . . . 24Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Water Treatment . . . . . . . . . . . . . . . . . . . . . . . . 24

Water Pressure Gauges . . . . . . . . . . . . . . . . . . 24

Valves—Drains and Vents . . . . . . . . . . . . . . . . 24

Strainers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Required Flow-Sensing Devices. . . . . . . . . . . 25Paddle Switches . . . . . . . . . . . . . . . . . . . . . 25Water Flow Detection Controller andSensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Evaporator and Condenser WaterPiping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Water Piping Connections . . . . . . . . . . . . . . . . 28

Waterbox Locations . . . . . . . . . . . . . . . . . . . . . 29

Grooved Pipe Coupling . . . . . . . . . . . . . . . . . . 29

Flange-connection Adapters . . . . . . . . . . . . . . 29

Victaulic Gasket Installation . . . . . . . . . . . . . . 30

Screw-Tightening Sequence for WaterPiping Connections . . . . . . . . . . . . . . . . . . . . . . 31

Flanges with 4, 8, or 12 Screws . . . . . . . . 32Flanges with 16, 20, or 24Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Flanges with More than 24Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Evaporator Waterbox Covers . . . . . . . . . 33

Pressure Testing Waterside Piping . . . . . . . . 33

Eddy Current Testing . . . . . . . . . . . . . . . . . . . . 33

Vent Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Refrigerant Vent Line . . . . . . . . . . . . . . . . . . . . 34

General Requirements. . . . . . . . . . . . . . . . 34Purge Discharge . . . . . . . . . . . . . . . . . . . . . 34Vent Line Materials. . . . . . . . . . . . . . . . . . . 34Vent Line Sizing. . . . . . . . . . . . . . . . . . . . . . 34

Vent Line Installation. . . . . . . . . . . . . . . . . . . . . 35

Vent Line Sizing Reference . . . . . . . . . . . . . . . 38

Insulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Unit Insulation Requirements . . . . . . . . . . . . . 41

Insulation Thickness Requirements . . . . . . . 41Factory-applied Insulation . . . . . . . . . . . . 41

Installation: Controls . . . . . . . . . . . . . . . . . . . . . . 43UC800 Specifications . . . . . . . . . . . . . . . . . . . . 43

Power Supply. . . . . . . . . . . . . . . . . . . . . . . . 43Wiring and Port Descriptions. . . . . . . . . . 43Communication Interfaces . . . . . . . . . . . . 44Rotary Switches . . . . . . . . . . . . . . . . . . . . . 44LED Description and Operation. . . . . . . . 44

Installing the Tracer AdaptiViewDisplay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Adjusting the Tracer AdaptiView DisplayArm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Electrical Requirements . . . . . . . . . . . . . . . . . . . 50Installation Requirements . . . . . . . . . . . . . . . . 50

Electrical Requirements . . . . . . . . . . . . . . . . . . 50

Table of Contents

6 CVHL-SVX01J-EN

Trane-supplied Starter Wiring . . . . . . . . . . . . 51

Customer-supplied Remote StarterWiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Current Transformer and PotentialTransformer Wire Sizing . . . . . . . . . . . . . . . . . 52

Power Supply Wiring . . . . . . . . . . . . . . . . . . . . . . 54Three-Phase Power . . . . . . . . . . . . . . . . . . . . . . 54

Circuit Breakers and FusedDisconnects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Power Factor Correction Capacitors(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Interconnecting Wiring. . . . . . . . . . . . . . . . . . . 55

Starter to Motor Wiring (Remote-Mounted Starters Only) . . . . . . . . . . . . . . . . . . 56

Ground Wire Terminal Lugs. . . . . . . . . . . 56Terminal Clamps. . . . . . . . . . . . . . . . . . . . . 57Wire Terminal Lugs . . . . . . . . . . . . . . . . . . 57Bus Bars . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Starter to Control Panel Wiring . . . . . . . . . . . 58

System Control Circuit Wiring (FieldWiring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Water Pump Interlock Circuits and FlowSwitch Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Chilled Water Pump . . . . . . . . . . . . . . . . . . 60Chilled Water Proof of Flow . . . . . . . . . . . 60Condenser Water Pump . . . . . . . . . . . . . . 60Condenser Water Proof of Flow . . . . . . . 60

Temperature Sensor Circuits . . . . . . . . . . . . . 60CWR—Outdoor Option . . . . . . . . . . . . . . . 60Optional Control and OutputCircuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Optional Tracer CommunicationInterface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Starter Module Configuration. . . . . . . . . . . . . 61

Schematic Wiring Drawings . . . . . . . . . . . . . . 61

Operating Principles . . . . . . . . . . . . . . . . . . . . . . . 62General Requirements . . . . . . . . . . . . . . . . . . . 62

Cooling Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . 62CVHL Low-Lift Compressor . . . . . . . . . . . 62

Oil and Refrigerant Pump . . . . . . . . . . . . . . . . 62

Compressor LubricationSystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Motor Cooling System . . . . . . . . . . . . . . . . . . . 64

Tracer AdaptiView Display . . . . . . . . . . . . . . . 64

Start-up and Shut-down . . . . . . . . . . . . . . . . . . . 65Sequence of Operation. . . . . . . . . . . . . . . . . . . 65

Software Operation OverviewDiagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65Start-up Sequence of Operation—Wye-delta . . . . . . . . . . . . . . . . . . . . . . . . . . . 66Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Control Panel Devices and Unit-MountedDevices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Unit Control Panel . . . . . . . . . . . . . . . . . . . 70User-defined Language Support . . . . . . 70

Unit Start-up and Shut-downProcedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Daily Unit Start-up . . . . . . . . . . . . . . . . . . . 71Seasonal Unit Start-up . . . . . . . . . . . . . . . 72Daily Unit Shut-down . . . . . . . . . . . . . . . . 72Seasonal Unit Shut-down. . . . . . . . . . . . . 72

Recommended Maintenance . . . . . . . . . . . . . . 73Record Keeping Forms . . . . . . . . . . . . . . . . . . . 73

Normal Operation . . . . . . . . . . . . . . . . . . . . . . . 73

Recommended Compressor OilChange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Purge System . . . . . . . . . . . . . . . . . . . . . . . . . . . 76Leak Checking Based on Purge PumpOut Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Long Term Unit Storage. . . . . . . . . . . . . . . . . . 76

Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . 77

Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Recommended SystemMaintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . 77Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . 78Waterbox and Tubesheet ProtectiveCoatings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78Sacrificial Anodes. . . . . . . . . . . . . . . . . . . . 78

Waterbox Removal and Installation . . . . . . . 80Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

TTaabbllee ooff CCoonntteennttss

CVHL-SVX01J-EN 7

Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . 81Torque Requirements and WaterboxWeights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Connection Devices Information . . . . . . . . . . 82

Appendix A: Forms and CheckSheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Unit Start-up/Commissioning. . . . . . . . . . . . . 83

Appendix B: CenTraVac™ ChillerInstallation Completion and Request forTrane Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Appendix C: CVHL CenTraVac™ Chiller Start-up Tasks to be Performed by Trane . . . . . . . . 86

Appendix D: CVHL CenTraVac™ ChillerAnnual Inspection List . . . . . . . . . . . . . . . . . . . . . 88

Appendix E: CVHL CenTraVac™ ChillerOperator Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

TTaabbllee ooff CCoonntteennttss

8 CVHL-SVX01J-EN

Unit Nameplate

The unit nameplate is located on the left side of thecontrol panel. A typical unit nameplate is illustrated inthe following figure and contains the followinginformation:

• Unit model and size descriptor

• Unit electrical requirements

• Correct operating charge and refrigerant type

• Unit test pressures and maximum operatingpressures

• Unit literature

SSeerriiaall NNuummbbeerr.. The unit serial number provides thespecific chiller identity. Always provide this serialnumber when calling for service or during partsidentification.

SSeerrvviiccee MMooddeell NNuummbbeerr.. The service model representsthe unit as built for service purposes. It identifies theselections of variable unit features required whenordering replacements parts or requesting service.

NNoottee:: Unit-mounted Adaptive Frequency™ Drives(AFDs) are identified by a separate numberfound on the AFD.

PPrroodduucctt DDeessccrriippttiioonn BBlloocckk.. The CenTraVac™ chillermodels are defined and built using the ProductDefinition and Selection (PDS) system. This systemdescribes the product offerings using a product codingblock which is made up of feature categories and codesthat identify all characteristics of a unit.

Figure 1. Typical unit nameplate (CVHF shown; CVHLis similar)

CVHL-SVX01J-EN 9

Model Number Descriptions

Digit 1, 2 — Unit Function

CV = CenTraVac™ Hermetic Chiller

Digit 3 — Drive

H = Direct Drive

Digit 4 — Development Sequence

L

Digit 5, 6, 7, 8 — Nominal CompressorTonnage0600 = 600 Tons—60 Hz0810 = 810 Tons—60 Hz1200 = 1200 Tons—60 Hz1800 = 1800 Tons—60 HzSSSS = Special

Digit 9 — Unit Motor Voltage

A = 440V-60HzB = 460V-60HzC = 480V-60HzD = 575V-60HzE = 600V-60HzS = Special

Digit 10, 11— Unit Function

L0

Digit 12— Unit Type

A = Cooling CondenserB = Separable Shells Cooling CondenserS = Special

Digit 13— Control Enclosure

A = Standard Control EnclosureB = Industrial Control Panel EnclosureC = Standard Control Enclosure with Tracer®SCS = Special

Digit 14, 15, 16, 17— CompressorMotor Power (kW)0 = See Unit Nameplate For Sales OrderSpecific CPKW Value0204 = 204 CPKW0231 = 231 CPKW0257 = 257 CPKW0361 = 361 CPKW0403 = 403 CPKW0453 = 453 CPKW0512 = 512 CPKW0588 = 588 CPKW0957 = 957 CPKWSSSS = Special

Digit 18, 19, 20 — CompressorImpeller CutbackS = Special

Note: 210 through 340; cutback is the sameas the FCOD for impeller cutback

Digit 21 — Evaporator Shell Size

A = 080S Short Evaporator ShellB = 080L Long Evaporator ShellC= 142L Long Evaporator ShellD = 210L Long Evaporator ShellE= 250E Extended Evaporator ShellS = Special

Digit 22 — EvaporatorWaterbox

1 = 300 psi Non-Marine—3-Pass ASMEA = 150 psi Marine—1-Pass STDB = 150 psi Marine—2-Pass STDC= 150 psi Marine—3-Pass STDD = 150 psi Non-Marine—1-Pass STDE= 150 psi Non-Marine—2-Pass STDF= 150 psi Non-Marine—3-Pass STDG = 300 psi Marine—1-Pass STDH= 300 psi Marine—2-Pass STDJ = 300 psi Marine—3-Pass STDK= 300 psi Non-Marine—1-Pass STDL = 300 psi Non-Marine—2-Pass STDM = 300 psi Non-Marine—3-Pass STDN = 150 psi Marine—1-Pass ASMEP = 150 psi Marine—2-Pass ASMEQ = 150 psi Marine—3-Pass ASMER = 150 psi Non-Marine—1-Pass ASMES = SpecialT= 150 psi Non-Marine—2-Pass ASMEU= 150 psi Non-Marine—3-Pass ASMEV= 300 psi Marine—1-Pass ASMEW = 300 psi Marine—2-Pass ASMEX= 300 psi Marine—3-Pass ASMEY = 300 psi Non-Marine—1-Pass ASMEZ = 300 psi Non-Marine—2-Pass ASME

Digit 23 — Condenser Shell Size

1 = 080S Short Condenser Shell2 = 080L Long Condenser Shell3 = 142L Long Condenser Shell4 = 210L Long Condenser Shell5 = 250L Long Condenser ShellS = Special

Digit 24— CondenserWaterbox

A = 150 psi Marine—2-Pass STDC = 150 psi Non-Marine—2-Pass STDE = 300 psi Marine—2-Pass STDG = 300 psi Non-Marine—2-Pass STDH = 150 psi Marine—1-Pass STDJ = 150 psi Non-Marine—1-Pass STDK = 300 psi Marine—1-Pass STDL = 300 psi Non-Marine—1-Pass STDS = Special

Digit 25— Unit Option

0 = NoneA = Insulation Package OnlyB = Insulation Package and 3-in.RuptureGuard™C = Insulation Package and 4-in.RuptureGuard™D = 3-in. RuptureGuard™ OnlyE = 4-in. RuptureGuard™ OnlyF = Extra-thick Insulation and 3-in.RuptureGuard™G = Extra-thick Insulation and 4-in.RuptureGuard™H = Extra-thick Insulation Only

Digit 26— Control: EnhancedProtection0 = None1 = Enhanced Protection

Digit 27— Control: Generic BAS

0 = NoneG = Generic BAS

Digit 28— Control: ExtendedOperation0 = None1 = Extended Operation

Digit 29— Tracer® CommunicationInterface0 = None4 = Tracer® Summit Interface Module5 = Tracer® Comm 56 = Tracer® MODBUS® (Tracer®AdaptiView™ Only)7 = Tracer® BACnet® (Tracer® AdaptiView™Only)

Digit 30— Control: CondenserRefrigerant Pressure0 = NoneC = Condenser Refrigerant Pressure

10 CVHL-SVX01J-EN

Digit 31— Special Options

0 = NoneS = Special Options

Digit 32— Control: Water FlowControl0 = NoneW =Water Flow Control

Digit 33— Control: ChilledWaterReset0 = None1 = Chilled Water Reset

Digit 34— Compressor Motor FrameSize1 = 400 Reliance2 = 440E Reliance3 = 5000 RelianceA = 440E RAMB = 5000 RAMC = 440E AO SmithD = 5000 AO SmithG = 440E RegalS = Special

Digit 35— Control: Operating Status

0 = None1 = Operating Status

Digit 36— Industrial Chiller Package(INDP)0 =Without INDPW =With INDP

Digit 37— Control Power Transformer(CPTR)0 =Without CPTR1 =With CPTRS = Special

Digit 38— Thermal DispersionWaterFlow Proving0 = None, Customer to Provide Device forCondenser and EvaporatorA = Thermal Dispersion Water Flow ProvingSelected for Condenser and EvaporatorB = Thermal Dispersion Water Flow ProvingSelected for Condenser OnlyC = Thermal Dispersion Water Flow ProvingSelected for Evaporator Only

Model Number NotesNote: 210 through 340; cutback is the same as the FCOD for impeller cutback.

MMooddeell NNuummbbeerr DDeessccrriippttiioonnss

CVHL-SVX01J-EN 11

Pre-InstallationASHRAE Standard 15ComplianceTrane recommends that indoor CenTraVac™ chillerinstallations fully meet or exceed the guidelines of thecurrent version of ASHRAE Standard 15, in addition toany applicable national, state, or local requirements.This typically includes:

• A refrigerant monitor or detector that is capable ofmonitoring and alarming within the acceptableexposure level of the refrigerant, and that canactuate mechanical ventilation.

• Audible and visual alarms, activated by therefrigerant monitor, inside the equipment room andoutside of every entrance.

• The equipment room should be properly vented tothe outdoors, using mechanical ventilation that canbe activated by the refrigerant monitor.

• The purge discharge and the rupture disk must beproperly piped to the outdoors.

• If required by local or other codes, a self-containedbreathing apparatus should be available in closeproximity to the equipment room.

Refer to the latest copy of ASHRAE Standard 15 forspecific guidelines. Trane assumes no responsibility forany economic, health, or environmental issues thatmay result from an equipment room’s design orfunction.

Unit ShipmentInspect unit while it is still on the truck for any shippingdamage. The chiller ships shrink-wrapped in a 0.010-in.(0.254 mm) recyclable film protective covering. Do NOTremove shrink-wrap for inspection! Inspect for damageto the shrink-wrap and determine if physical damagehas occurred.

Each chiller ships from the factory as a hermeticallyassembled package; it is factory-assembled, -wired,and -tested. All openings except for the waterbox ventand drain holes are covered or plugged to preventcontamination during shipment and handling.“UnitComponents,” p. 15 shows an illustration of a typicalunit and its components. As soon as the unit arrives atthe job site, inspect it thoroughly for damage andmaterial shortages. In addition:

1. Verify the hermetic integrity of the unit by checkingthe chiller pressure for an indication of holdingcharge pressure.

2. To prevent damaging moisture from entering theunit and causing corrosion, each chiller ispressurized with 3 to 5 psig (20.7 to 34.5 kPaG) ofdry nitrogen before shipment.

NNoottee:: The holding charge should registerapproximately 5 psig (34.5 kPaG) at 72°F (22.2°C).Place a gauge on the access valve provided(indicated by arrow and circle in the followingfigure) on the refrigerant pump discharge line toverify the holding charge. If the charge hasescaped, contact your local Trane sales office forinstructions.

3. The loose parts box and isolator pads ship on top ofthe control panel box.

4. Check the oil sump sight glasses to verify that thesump was factory-charged with 9 gallons (34.1 L) ofoil. If no oil level is visible, contact your local Tranesales office.

IImmppoorrttaanntt:: If isolation springs are installed, do NOTblock oil tank serviceability.

Figure 2. Refrigerant pump discharge line accessvalve

Installation Requirements andContractor ResponsibilitiesA list of the contractor responsibilities typicallyassociated with the unit installation process is providedin the following table.

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12 CVHL-SVX01J-EN

NNoottee:: The chiller should remain within its protectiveshrink-wrap covering during storage.

Type of Requirement Trane SuppliedTrane Installed

Trane SuppliedField Installed

Field SuppliedField Installed

Foundation • Meet foundation requirements

Rigging• Safety chains

• Rigging shackles

• Lifting beam

Disassembly/Reassembly(as required)

• Trane will perform or havedirect on-site supervisionof the disassembly andreassembly work (contactyour local Trane office forpricing)

Isolation • Isolation pads or springisolators

• Isolation pads or spring isolators

• Optional spring isolators, when required, areinstalled by others; do NOToverload springs and doNOT install isolation springs if they block serviceableparts such as the oil tank system, service valves,etc.

Electrical

• Circuit breakers or fusibledisconnects (optional)

• Adaptive Frequency™Drive (AFD)

• Power factor correctioncapacitors (PFCCs)(optional)

• Jumper bars

• Temperature sensor(optional outdoor air)

• Flow switches (may befield supplied); forinstallation instructionsfor the ifm efector®flow detection controllerand sensor, refer to“Water Flow DetectionController andSensor,” p. 25 or Traneliterature that shippedwith the device

• Circuit breakers or fusible disconnects (optional)

• Electrical connections to unit-mounted AFD

• Electrical connections to remote-mounted starter(optional)

• Wiring sizes per submittal and National Electric Code(NEC)

• Terminal lugs

• Ground connection(s)

• Jumper bars

• BAS wiring (optional)

• Inter-processor communication (IPC) wiring (AFDand remote-mounted starters only)

• Control voltage wiring (AFD and remote-mountedstarters only)

• Oil pump interlock wiring (AFD and remote mountedstarters only)

• High condenser pressure interlock wiring (AFD andremote-mounted starters only)

• Chilled water pump contactor and wiring includinginterlock

• Condenser water pump contactor and wiringincluding interlock

• Option relays and wiring

• Tracer® SC communication wiring (optional)

Water piping • Flow sensing devices(may be field supplied)

• Taps for flow sensing devices

• Taps for thermometers and gauges

• Thermometers

• Strainers (as required)

• Water flow pressure gauges

• Isolation and balancing valves in water piping

• Vents and drain on waterbox valves (one each perpass)

• Pressure relief valves (for waterboxes as required)

Relief • Rupture disk assembly

• RuptureGuard™(optional); refer toInstallation, Operation,and Maintenance:RuptureGuard PressureRelief System Option(CTV-SVX06*-EN)

• Vent line and flexible connector and vent line fromrupture disk to atmosphere

PPrree--IInnssttaallllaattiioonn

CVHL-SVX01J-EN 13

Type of Requirement Trane SuppliedTrane Installed

Trane SuppliedField Installed

Field SuppliedField Installed

Insulation • Insulation (optional)• Insulation

• Chiller feet insulation

Water Piping ConnectionComponents

Flanged (optional)

• Welded on flange for300 psig (2068.4 kPaG)waterboxes

Flanged (optional)

• Victaulic® to flangeadapter for 150 psig(1034.2 kPaG)waterboxes

Victaulic®

• Victaulic® coupling for 150 psig (1034.2 kPaG) and300 psig (2068.4 kPaG) waterboxes

• Fasteners for flanged-type connections (optional)

Other Materials

• Trace gas (1 lb [0.45 kg] maximum per machine asneeded to perform leak testing)

• Material and equipment to perform leak testing

• Dry nitrogen (8 psig [55.2 kPaG] maximum permachine as needed)

“Appendix B: CenTraVac™Chiller InstallationCompletion and Requestfor Trane Service,” p. 84(CTV-ADF001*-EN; referto “Appendix A: Forms andCheck Sheets,” p. 83)

• To be completed by installing contractor prior tocontacting Trane for start-up

Chiller start-upcommissioning(a)

• Trane, or an agent ofTrane specificallyauthorized to performstart-up of Trane®products

Post-commissioningtransport of emptyrefrigerant containers forreturn or recycling

• Move empty refrigerant containers to an easilyaccessible point of loading

(a) Start-up must be performed by Trane or an agent of Trane specifically authorized to perform start-up and warranty of Trane® products. Contractor shallprovide Trane (or an agent of Trane specifically authorized to perform start-up) with notice of the scheduled start-up at least two weeks prior to thescheduled start-up.

Storage RequirementsNNoottee:: If the chiller is stored outdoors for any amount of

time, ddoo NNOOTT rreemmoovvee AANNYY sshhiippppiinnggccoovveerriinnggss.. PPrrootteecctt tthhee cchhiilllleerr ffrroomm tthheeeelleemmeennttss aanndd pprrootteecctt aaggaaiinnsstt ffrreeeezziinngg,,especially if any shipping materials have beenremoved.

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Less than 1month 1–6months Greater than 6monthsLocation requirements:

• Solid foundation

• Vibration free

• Dry

• Temperature range -40°F to 158°F(-40°C to 70°C)

Location requirements:


• Vibration free

• Dry


Location requirements:


• Vibration free

• Dry


• Do not remove any plastic coverings • Do not remove any plastic coverings • Do not remove any plastic coverings

• Do not charge the chiller with refrigerant

• If additional refrigerant is on site, followmanufacturer’s storage requirements






14 CVHL-SVX01J-EN

Less than 1month 1–6months Greater than 6months

• Verify dry nitrogen pressure using gaugelocated on the evaporator shell reads3 to 5 psig (20.7 to 34.5 kPaG)

• Notify the local Trane office if charge hasescaped

• Verify dry nitrogen pressure using gaugelocated on the evaporator shell reads3 to 5 psig (20.7 to 34.5 kPaG)


• Verify dry nitrogen pressure using gaugelocated on the evaporator shell reads 3 to 5 psig(20.7 to 34.5 kPaG)


• Do not operate purge unit • Do not operate purge unit • Do not operate purge unit

• Verify waterbox and tube bundles areclean and dry

• Verify waterbox and tube bundles are clean anddry

• Conduct an oil analysis and verify no oilbreakdown(a)

• Repeat yearly

• Replace oil if breakdown has occurred

• If no oil analysis program has been followed,replace oil prior to start-up

• Every six months, check unit pressure orvacuum and take note of changes that couldindicate a leak; contact your local Trane office ifany leaks occur

• Every six months, start the oil pump and rotatecompressor shaft about 450° to preventpotential bearing issues (a); contact your localTrane Service Agency to perform this task

• If the chiller will be stored for more thansix months after production, contact your localTrane Service Agency for required extendedstorage actions to minimize impact to the chillerand preserve the warranty.

• Chillers stored five years or longer should beinspected for leaks every five years by aqualified service organization

(a) If the chiller will be stored for more than six months after production, contact your local Trane Service Agency for required extended storage actions tominimize impact to the chiller and preserve the warranty.


CVHL-SVX01J-EN 15

Unit ComponentsNNoottee:: The control panel side of the unit is always

designated as the front side of the unit.

Figure 3. Typical CVHL CenTraVac™ chiller

1 2

3

4

56

7

8

09

9

1. Suction Elbow

2. Compressor

3. Terminal Box

4. Control Panel

5. Condenser

6. Motor Housing

7. Oil Tank Assembly

8. Purge

9. Evaporator

10. Display Panel


16 CVHL-SVX01J-EN

Unit Clearances and WeightsRecommended Unit ClearancesAdequate clearances around and above the chiller arerequired to allow sufficient access for service andmaintenance operations. Specific unit clearancerequirements are indicated in the submittal packageprovided for your unit.

• Do NOT install piping or conduit above thecompressor motor assembly or behind the suctionelbow of the unit.

• Minimum vertical clearance above the unit is 3 ft(92 cm).

• Use a housekeeping pad to provide better serviceclearances; refer to submittal for more information.

Per National Electric Code (NEC) Article 110: Unitmounted starters from 0 to 600V require a 42 inch(107 cm) clearance, 601 to 2500V require a 48 inch(122 cm) clearance, and 2501 to 9000V require a 60 inch(152 cm) clearance. Refer to NEC and local electricalcodes for starter and control panel clearancerequirements.

Figure 4. Clearance requirements

C

3 ft. (92 cm)

A

18 in. (46 cm)

Cooling condenser

Evaporator

Motor

Right-hand tube pull shown, apply tube pull clearance dimension to left end for left-hand tube pull.

Optional unit-mounted starter

These dimensions per NEC Article 110

B

D

E

Table 1. Clearance requirements

Evaporator Size Shell ComboA B C D E

in. cm in. cm in. cm in. cm in. cm

080 Short/Long

Short/Short 53 134 141 358 329 835 36 91 76 193

Short/Long 85 215 219 556 439 1115 36 91 76 193

Long/Long 53 134 187 474 419 1064 36 91 76 193

142 Medium/Long/Extended210 Long

Medium/Long 78 198 207 525 444 1127 44 111 92 233

Long/Long 58 147 187 474 424 1076 44 111 92 233

Extended/Long 58 147 209 530 469 1191 44 111 92 233

Long/Long 59 149 187 474 426 1082 47 119 102 259

CVHL-SVX01J-EN 17

Table 1. Clearance requirements (continued)

Evaporator Size Shell ComboA B C D E

in. cm in. cm in. cm in. cm in. cm

250 Extended Extended/Long 63 160 209 530 475 1206 43 109 115 292

Note: All dimensions are approximate; refer to the unit submittal package for exact dimensions for your unit.

General WeightsWeights (lb)IImmppoorrttaanntt:: The weight information provided here

should be used for general informationonly. Trane does not recommend using thisweight information for considerationsrelative to chiller handling, rigging, orplacement. The large number of variancesbetween chiller selections drives variancesin chiller weights that are not recognized inthese tables. For specific weights for yourchiller, refer to your submittal package.

Table 2. Representative weights, 60 Hz chillers (lb)

ModelComp Size

CPKWEvap Size Cond Size Weights without Starters Weights with Starters

NTON EVSZ CDSZ Operating Shipping Operating Shipping

CVHL

600 257 080S 080S — — 30218 25861

600 231 080L 080L — — 34140 28677

810 360 080L 080L — — 35381 29760

810 360 080L 142L — — 44019 36968

1200 587 080L 142L — — 44786 37737

1200 587 210L 210L — — 60979 51107

1800 957 250E 250E — — 79132 66160

Notes:1. TECU tubes, 0.028 in. tube wall thickness.2. 300 psig marine waterboxes.3. Heaviest possible bundle and motor combination.4. Operating weights assume the largest possible refrigerant charge.5. Weights with starters assume the heaviest possible starter (AFD when it’s an allowed option).6. Industrial Control Panel (INDP) option, add 50 lb.7. Control Power Transformer (CPTR) option, add 130 lb.8. Supplemental Motor Protection (SMP) option, add 500 lb.

Weights (kg)IImmppoorrttaanntt:: The weight information provided here

should be used for general informationonly. Trane does not recommend using thisweight information for considerationsrelative to chiller handling, rigging, orplacement. The large number of variancesbetween chiller selections drives variancesin chiller weights that are not recognized inthese tables. For specific weights for yourchiller, refer to your submittal package.

UUnniitt CClleeaarraanncceess aanndd WWeeiigghhttss

18 CVHL-SVX01J-EN

Table 3. Representative weights, 60 Hz chillers (kg)

ModelComp Size

CPKWEvap Size Cond Size Weights without Starters Weights with Starters

NTON EVSZ CDSZ Operating Shipping Operating Shipping

CVHL

600 257 080S 080S — — 13707 11730

600 231 080L 080L — — 15486 13008

810 360 080L 080L — — 16049 13499

810 360 080L 142L — — 19967 16768

1200 587 080L 142L — — 20315 17117

1200 587 210L 210L — — 27660 23182

1800 957 250E 250E — — 35894 30010

Notes:1. TECU tubes, 0.71 mm tube wall thickness.2. 2068.4 kPaG non-marine waterboxes.3. Heaviest possible bundle and motor combination.4. Operating weights assume the largest possible refrigerant charge.5. Weights with starters assume the heaviest possible starter (AFD when it’s an allowed option).6. Industrial Control Panel (INDP) option, add 23 kg.7. Control Power Transformer (CPTR) option, add 59 kg.8. Supplemental Motor Protection (SMP) option, add 227 kg.

UUnniitt CClleeaarraanncceess aanndd WWeeiigghhttss

CVHL-SVX01J-EN 19

Installation: MechanicalOperating EnvironmentIImmppoorrttaanntt::

• The standard chiller is designed forINDOOR USE ONLY and as such hasNEMA Type 1 enclosures.

• For chillers in unheated equipmentrooms, contact your local Trane ServiceAgency for methods to ensure that theoil temperature is maintained suitablefor proper operation of the chiller.

NNOOTTIICCEEEEqquuiippmmeenntt DDaammaaggee!!FFaaiilluurree ttoo pprrootteecctt tthhee uunniitt ffrroomm ffrreeeezziinngg ccoouullddrreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee..IIff fflluuiidd hhaass bbeeeenn aaddddeedd ttoo tthhee ppiippiinngg,, tthhee uunniitt mmuussttbbee pprrootteecctteedd ffrroomm ffrreeeezziinngg.. FFrreeeezzee ddaammaaggee ffrroommaann uunnhheeaatteedd eeqquuiippmmeenntt rroooomm iiss nnoott tthhee TTrraanneeccoommppaannyy''ss rreessppoonnssiibbiilliittyy.. TThheessee aarree iinnddoooorr uunniittss..

NNOOTTIICCEEEEqquuiippmmeenntt FFaaiilluurree!!UUnniitt ooppeerraattiinngg aatt aammbbiieenntt tteemmppeerraattuurreess eexxcceeeeddiinngg110044°°FF ((4400°°CC)) ccoouulldd rreessuulltt iinn AAFFDD//ssttaarrtteerrccoommppoonneenntt ddaammaaggee dduuee ttoo tthhee ppaanneell’’ss iinnaabbiilliittyy ttooddiissssiippaattee hheeaatt aaddeeqquuaatteellyy.. FFoorr CCDDHHFF,, CCDDHHGG,, CCVVHHEE,,CCVVHHFF,, CCVVHHGG,, CCVVHHLL,, CCVVHHMM,, aanndd CCVVHHSS CCeennTTrraaVVaacccchhiilllleerrss,, uunniittss ooppeerraattiinngg aatt tthheessee tteemmppeerraattuurreessccoouulldd aallssoo ffaattiigguuee tthhee uunniitt’’ss rruuppttuurree ddiisskk,, ccaauussiinnggiitt ttoo bbrreeaakk aatt aa rreedduucceedd rreeffrriiggeerraanntt pprreessssuurree ((

20 CVHL-SVX01J-EN

points.

2. Attach the lifting chains or cables.

3. After the lifting cables are in place, attach a safetychain or cable between the first-stage casing of thecompressor and the lifting beam.

IImmppoorrttaanntt:: There should NOT be tension on thissafety cable; the cable is used only toprevent the unit from rolling during thelift.

4. Position isolator pads or spring isolators beneaththe chiller feet (refer to “Unit Isolation,” p. 21 forinstructions).

NNoottee:: Follow instructions provided by the springisolator manufacturer, being careful to notdamage isolator adjustment screw.

5. Once the isolators are in place, lower the chiller—working from end to end—in small increments tomaintain stability.

6. When lift is complete, detach the rigging shacklesand safety chain.

Figure 5. Typical rigging arrangements

Safety chain or cable

Jack slots

16 ft (4.9 m) minimum effective length

800 Short shells only—use rigging flange

IInnssttaallllaattiioonn:: MMeecchhaanniiccaall

CVHL-SVX01J-EN 21

Special Lift Requirements

NNOOTTIICCEEOOiill LLoossss!!FFaaiilluurree ttoo pprreevveenntt ooiill mmiiggrraattiioonn oouutt ooff tthhee ooiill ttaannkkccoouulldd rreessuulltt iinn eeqquuiippmmeenntt ffaaiilluurree oorr pprrooppeerrttyy--oonnllyyddaammaaggee..TToo pprreevveenntt ooiill mmiiggrraattiioonn oouutt ooff tthhee ooiill ttaannkk dduurriinngglliiffttiinngg pprroocceedduurreess,, rreemmoovvee tthhee ooiill ffrroomm tthhee ooiill ttaannkkiiff tthhee uunniitt wwiillll bbee lliifftteedd aatt aannyy aannggllee ggrreeaatteerr tthhaann1155°° ffrroomm hhoorriizzoonnttaall eenndd--ttoo--eenndd.. IIff ooiill iiss aalllloowweedd ttoorruunn oouutt ooff tthhee ooiill ttaannkk iinnttoo ootthheerr aarreeaass ooff tthheecchhiilllleerr,, iitt wwiillll bbee eexxttrreemmeellyy ddiiffffiiccuulltt ttoo rreettuurrnn tthhee ooiillttoo tthhee ooiill ttaannkk eevveenn dduurriinngg ooppeerraattiioonn..

NNOOTTIICCEEEEqquuiippmmeenntt DDaammaaggee!!MMoovviinngg tthhee cchhiilllleerr uussiinngg aa ffoorrkk lliifftt ccoouulldd rreessuulltt iinneeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy ddaammaaggee..DDoo nnoott uussee aa ffoorrkk lliifftt ttoo mmoovvee tthhee cchhiilllleerr!!

NNOOTTIICCEECCoommpprreessssoorr AAlliiggnnmmeenntt!!FFaaiilluurree ttoo pprreesseerrvvee ccoommpprreessssoorr aalliiggnnmmeenntt ccoouullddrreessuulltt iinn eeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy ddaammaaggee..LLiiffttiinngg tthhee ccoommpprreessssoorr//mmoottoorr aasssseemmbbllyy ffrroomm tthheesshheellllss wwiitthhoouutt ffaaccttoorryy--iinnssttaalllleedd ddoowweelliinngg iinn tthheeccoommpprreessssoorr ccaassttiinngg ffllaannggeess ccoouulldd rreessuulltt iinnmmiissaalliiggnnmmeenntt ooff tthhee ccoommpprreessssoorr ccaassttiinnggss..

If the chiller cannot be moved using a standard chillerlift, consider the following:

• When job site conditions require rigging of thechiller at an angle greater than 45° from horizontal(end-to-end), the unit may require removal of thecompressor. Contact Trane or an agent of Tranespecifically authorized to perform start-up andwarranty of Trane® products regarding thedisassembly and reassembly work. For moreinformation, refer to “Factory WarrantyInformation,” p. 3.

NNoottee:: Disassembly and reassembly work includesdowel-pinning the compressor and removingit from the unit. Contact Trane or an agent ofTrane specifically authorized to perform start-up and warranty of Trane® products forspecific rigging instructions. Do NOT attemptto rotate the chiller onto its side.

• When lifting the chiller is either impractical orundesirable, attach cables or chains to the jackingslots shown in the figure in “Standard ChillerLift,” p. 19; then push or pull the unit across asmooth surface. Should the chiller be on a shippingskid, it is not necessary to remove the skid from thechiller before moving it into place.

• If removal of the compressor assembly is necessaryto move the chiller to the operating location,

contact Trane. Also refer to “Factory WarrantyInformation,” p. 3.

Unit IsolationTo minimize sound and vibration transmission throughthe building structure and to ensure proper weightdistribution over the mounting surface, always installisolation pads or spring isolators under the chiller feet.

NNoottee:: Isolation pads (refer to the figure in “IsolationPads,” p. 21) are provided with each chillerunless spring isolators are specified on the salesorder.

Specific isolator loading data is provided in the unitsubmittal package. If necessary, contact your localTrane sales office for further information.

IImmppoorrttaanntt:: When determining placement of isolationpads or spring isolators, remember that thecontrol panel side of the unit is alwaysdesignated as the front side of the unit.

Isolation PadsWhen the unit is ready for final placement, positionisolation pads (18-in. [457.2-mm] sides) end for endunder the full length of the chiller leg. The padsmeasure 9 in. × 18 in. (228.6 mm x 457.2 mm) and onsome units there may be small gaps between pads.Pads are provided to cover entire foot. Place pad flushwith the outside edge of the chiller foot and leaveexcess material under the chiller.

Figure 6. Isolation pad and dimensions

A

B

C

A = 3/8 in. (9.5 mm)

B = 18 in. (457.2 mm)

C = 9 in. (228.6 mm)

Remember that the chiller must be level within 1/16 in.(1.6 mm) over its length and width after it is loweredonto the isolation pads. In addition, all pipingconnected to the chiller must be properly isolated andsupported so that it does not place any stress on theunit.

Spring IsolatorsSpring isolators should be considered whenever chillerinstallation is planned for an upper story location. Baseisolator placement is shown in the following figure.


22 CVHL-SVX01J-EN

Figure 7. Isolation spring placement by shell size, andevaporator and condenser length

Condenser

Evaporator

Condenser

Evaporator

leftrear

leftfront

rightrear

rightfront

leftrear

rightrear

leftcenter

rightfront

leftfront

080 S/S, S/L, L/L142 M/L, L/L210 L/L

142 E/L250 E/L

Spring isolators typically ship assembled and ready forinstallation. To install and adjust the isolators properly,follow the provided instructions.

NNoottee:: Do NOT adjust the isolators until the chiller ispiped and charged with refrigerant and water.

IImmppoorrttaanntt:: Do NOT block any serviceable componentssuch as the lubrication system with field-installed devices such as spring isolators.

1. Position the spring isolators under the chiller asshown in the preceding figure. Ensure that eachisolator is centered in relation to the tube sheet.

NNoottee:: Spring isolators shipped with the chiller maynot be identical. Compare the data providedin the unit submittal package to determineproper isolator placement.

2. Set the isolators on the sub-base; shim asnecessary to provide a flat, level surface at thesame elevation for the end supports.

IImmppoorrttaanntt:: Support the full underside of theisolator base plate; do NOT straddlegaps or small shims.

3. If required, screw the isolators to the floor throughthe slots provided, or cement the pads.

NNoottee:: Fastening the isolators to the floor is notnecessary unless specified.

4. If the chiller must be fastened to the isolators, insertcap screws through the chiller base and into holesdrilled and tapped in the upper housing of eachisolator.

IImmppoorrttaanntt:: Do NOT allow the screws to protrudebelow the underside of the isolatorupper housing, or interfere with theadjusting screws. An alternativemethod of fastening the chiller to theisolators is to cement the neoprenepads.

5. Set the chiller on the isolators; refer to “StandardChiller Lift,” p. 19. The weight of the chiller willforce down the upper housing of each isolator, andcould cause it to rest on the isolator’s lowerhousing (refer to the following figure).

6. Check the clearance on each isolator. If thisdimension is less than 1/4 in. (6.35 mm) on anyisolator, use a wrench to turn the adjusting screwone complete revolution upward.

NNoottee:: When the load is applied to the isolators(refer to Step 5), the top plate of each isolatormoves down to compress the springs untileither the springs support the load or the topplate rests on the bottom housing of theisolator. If the springs are supporting the load,screwing down on the adjusting screw (referto Step 7) will raise the chiller.

7. Turn the adjusting screw on each of the remainingisolators to obtain the required minimum clearanceof 1/4 in. (6.35 mm).

8. Once the minimum required clearance is obtainedon each of the isolators, level the chiller by turningthe adjusting screw on each of the isolators on thelow side of the unit. Work from one isolator to thenext.

IImmppoorrttaanntt:: The chiller must be level to within 1/16 in. (1.6 mm) over its length andwidth, and the clearance of eachisolator must be at least 1/4 in.(6.35 mm).


CVHL-SVX01J-EN 23

Figure 8. Chiller foot and isolator orientation

Side View of Unit End View of Unit

Center tube sheetsupport leg

Outside edge of

tube sheet

Center of isolator spring

Note: The spring isolator must be centered in relation to the tube sheet. Do not align the isolator with the flat part of the chiller foot since the tube sheet is often off center.

Note: The length of the isolator should be parallel to the leg.

IImmppoorrttaanntt:: Do NOT install spring isolators or bracketsin such a way that they could inhibit chillerservicing such as charging or evacuation,oil tank service, etc.

Leveling the UnitThe chiller must be set level within 1/16 in. (1.6 mm).

1. Measure and make a punch mark an equal distanceup from the bottom of each foot of the chiller.

2. Suspend a clear plastic tube along the length of thechiller as shown in the following figure.

3. Fill the tube with water until the level aligns withthe punch mark at one end of the chiller.

4. Check the water level at the opposite mark. If thewater level does not align with the punch mark, usefull length shims to raise one end of the chiller untilthe water level at each end of the tube aligns withthe punch marks at both ends of the chiller.

5. Once the unit is level across its length, repeat thefirst three steps to level the unit across its width.

Figure 9. Leveling the chiller

1

2

NNoottee:: Use of a laser level is an acceptable alternativemethod to level the unit.

IImmppoorrttaanntt:: Immediately report any unit damageincurred during handling or installation atthe job site to the Trane sales office.


24 CVHL-SVX01J-EN

Installation: Water PipingOverviewThe following water piping circuits must be installedand connected to the chiller:

• Pipe the evaporator into the chilled water circuit.

• Pipe the condenser into the cooling tower watercircuit.

NNoottee:: Piping must be arranged and supported to avoidstress on the equipment. It is stronglyrecommended that the piping contractor doesnot run pipe closer than 3 ft (0.9 m) minimum tothe equipment. This will allow for proper fit uponarrival of the unit at the job site. Any adjustmentthat is necessary can be made to the piping atthat time. Expenses that result from a failure tofollow this recommendation will NOT be paid byTrane.

Piping suggestions for each of the water circuits listedabove are outlined in “Evaporator and CondenserWater Piping,” p. 27. General recommendations for theinstallation of field-supplied piping components (e.g.,valves, flow switches, etc.) common to most chillerwater circuits are listed in the following sections.

Water TreatmentThe use of untreated or improperly treated water in aCenTraVac™ chiller may result in inefficient operationand possible tube damage.

IImmppoorrttaanntt:: Trane strongly recommends using theservices of a qualified water treatmentspecialist to determine necessary watertreatment. A label with a customerdisclaimer note is affixed to each unit.

NNOOTTIICCEEPPrrooppeerr WWaatteerr TTrreeaattmmeenntt RReeqquuiirreedd!!TThhee uussee ooff uunnttrreeaatteedd oorr iimmpprrooppeerrllyy ttrreeaatteedd wwaatteerrccoouulldd rreessuulltt iinn ssccaalliinngg,, eerroossiioonn,, ccoorrrroossiioonn,, aallggaaee oorrsslliimmee..UUssee tthhee sseerrvviicceess ooff aa qquuaalliiffiieedd wwaatteerr ttrreeaattmmeennttssppeecciiaalliisstt ttoo ddeetteerrmmiinnee wwhhaatt wwaatteerr ttrreeaattmmeenntt,, iiffaannyy,, iiss rreeqquuiirreedd.. TTrraannee aassssuummeess nnoo rreessppoonnssiibbiilliittyyffoorr eeqquuiippmmeenntt ffaaiilluurreess wwhhiicchh rreessuulltt ffrroomm uunnttrreeaatteeddoorr iimmpprrooppeerrllyy ttrreeaatteedd wwaatteerr,, oorr ssaalliinnee oorr bbrraacckkiisshhwwaatteerr..

Water Pressure GaugesLocate pressure gauge taps in a straight length of pipe.Place each tap a minimum of one pipe diameterdownstream of any elbow, orifice, etc. For example, fora 6 in. (16 cm) pipe, the tap would be at least 6 in. (16cm) from any elbow, orifice, etc.

Valves—Drains and VentsNNOOTTIICCEE

WWaatteerrbbooxx DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinnddaammaaggee ttoo tthhee wwaatteerrbbooxx..DDoo nnoott oovveerr--ttiigghhtteenn oorr uussee eexxcceessssiivvee TTeefflloonn®® ppiippeettaappee wwhheenn iinnssttaalllliinngg vvaallvveess,, ddrraaiinnss,, pplluuggss aannddvveennttss oonn wwaatteerrbbooxxeess..

1. Install field-supplied air vents and drain valves onthe waterboxes. Each waterbox is provided with aNational Pipe Thread Female (NPTF) vent and drainconnection; depending on the waterbox typesordered, the openings may be 1/4 in. (6.35 mm), 1/2 in. (12.7 mm), or 3/4 in. (19.05 mm).

NNOOTTIICCEEWWaatteerrbbooxx DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinnddaammaaggee ttoo tthhee wwaatteerrbbooxx dduuee ttoo hhyyddrroossttaattiicceexxppaannssiioonn..IInnssttaallll pprreessssuurree--rreelliieeff vvaallvveess iinn tthhee ccoonnddeennsseerraanndd eevvaappoorraattoorr wwaatteerr cciirrccuuiittss..

NNOOTTIICCEEEEqquuiippmmeenntt DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinneeqquuiippmmeenntt ddaammaaggee..DDoo NNOOTT aallllooww cchhiilllleerr ttoo ffrreeeezzee!! BBuunnddlleess mmuussttbbee ddrraaiinneedd aanndd aaiirr--bblloowwnn ddrryy iiff cchhiilllleerr iiss ssttoorreeddiinn aann uunnhheeaatteedd eeqquuiippmmeenntt rroooomm..

2. If necessary for the application, install pressure-relief valves at the drain connections on theevaporator and condenser waterboxes. To do so,add a tee with the relief valve attached to the drainvalve.

To determine whether or not pressure relief valvesare needed for a specific application, keep in mindthat:

a. Vessels with close-coupled shutoff valves maycause high potentially damaging hydrostaticpressures as fluid temperature rises.

b. Relief valves are required by American Societyof Mechanical Engineers (ASME) codes whenthe shell waterside is ASME. Follow ASMEguidelines or other applicable codes to ensureproper relief valve installation.

CVHL-SVX01J-EN 25

StrainersNNOOTTIICCEE

WWaatteerr BBoorrnn DDeebbrriiss!!TToo pprreevveenntt ccoommppoonneennttss ddaammaaggee,, ppiippee ssttrraaiinneerrssmmuusstt bbee iinnssttaalllleedd iinn tthhee wwaatteerr ssuupppplliieess ttoo pprrootteeccttccoommppoonneennttss ffrroomm wwaatteerr bboorrnn ddeebbrriiss.. TTrraannee iiss nnoottrreessppoonnssiibbllee ffoorr eeqquuiippmmeenntt--oonnllyy--ddaammaaggee ccaauusseeddbbyy wwaatteerr bboorrnn ddeebbrriiss..

Install a strainer in the entering side of each pipingcircuit to avoid possible tube plugging in the chillerwith debris.

Required Flow-Sensing DevicesUse flow paddle switches (refer to “PaddleSwitches,” p. 25), differential pressure switches, or ifmefector® flow detection controllers and sensors (referto “Water Flow Detection Controller and Sensor,” p.25) in conjunction with the pump interlocks to verifyevaporator and condenser water flows.

To ensure adequate chiller flow protection, wire thechiller water and condenser water proof of flow devicesper the as-built schematics and submittal, and inaccordance with associated notes.

Unless stated otherwise, all flow sensing devices mustbe field supplied. Be sure to follow the manufacturer’srecommendations for device selection and installation.

Also, review the following general flow switchinstallation guidelines.

Paddle SwitchesFigure 10. Flow paddle switch installation

1 2

3

4

5 51. Flow switch body

2. One (1) pipe size larger bushing to avoid paddleinterference

3. Pipe coupling

4. Flow switch paddle

5. Five (5) pipe diameters (no turns or fittings)

Paddle switch installation:

1. Mount the flow paddle switch upright in horizontalsection of pipe. Allow at least five pipe diameters ofstraight, horizontal run on each side of the switch.Whenever possible, avoid locations adjacent toelbows, orifices, and valves.

2. To ensure that the flow switch operates asdesigned, adjust the length of the flow switchpaddle to compensate for the pipe diameter and theheight of the coupling used to install the switch.

3. Install the flow switch using a coupling that is largeenough to allow the insertion of a bushing one pipediameter larger than the flow switch base as shownin the preceding figure. This will preventinterference with the flow switch paddle.

4. Verify that the direction-of-flow arrow on the switchpoints in the same direction as actual water flowthrough the piping circuit.

5. Remove all air from the piping circuit to preventpossible flow switch “fluttering”.

6. Adjust the flow switch to open when water flow isless than normal.

Water Flow Detection Controller andSensorIImmppoorrttaanntt:: Before installing the ifm efector® flow

detection controller and sensor, use amarker to draw a line on the probe at 3.5 in.(8.9 cm) from the end of the probe. Do NOTinsert more than 3.5 in. (8.9 cm) of theprobe length into the pipe. Refer to thefollowing figure.

IInnssttaallllaattiioonn:: WWaatteerr PPiippiinngg

26 CVHL-SVX01J-EN

Figure 11. Installation of ifm efector flow detectioncontroller and sensor

Components:A . E40174 – 1/2" NPT adapter (for ow probe)B . SF6200 – Flow probeC . SN0150 – Flow control monitorD . E70231 – Combicon connectors (quantity 5)E . E10965 – Micro DC cable, 10m length, PUR jacketF. F53003 – Din rail, 40mm length

Output tocontrol cabinet

Jumper N

LAC

JumperFlow monitoringWire break monitoringTemperature monitoringPower-on delay timeSelection liquid / gas

Temperature monitoring canalso be incorporated usingterminals 10, 11, and 12.

To wire the ow monitoringand wire-break monitoringrelay outputs in series, usethe wiring diagram at right.

Installation1. Install adapter (A) into pipe.

2. Mount ow probe (B) into adapter (A).

3. Install DIN rail (F) into control cabinet.

4. Install control monitor (C) onto DIN rail (F).

5. Connect cable (E) to ow probe (B), (hand tighten only).

6. Wire cable in combicon connectors (D) according towiring diagram.

7. Wire relay outputs for ow, wire-break, and/ortemperature monitoring, according to wiring diagram.

If factory-provided, located in control panel.

Do NOT insert more than 3.5 in. (8.9 cm) of the probe length into the pipe.

43

2

1

Use a marker to draw a line on the probe at 3.5 in. (8.9 cm) from the probe end.

1. Mount the 1/2-in. NPT adapter in a horizontal orvertical section of pipe. The maximum distancefrom the control panel must not exceed 29.5 ft (9 m)(see item labeled “1” in the preceding figure). Allowat least five pipe diameters straight run of pipeupstream of the sensor location, and three pipediameters straight run of pipe downstream of thesensor location.

NNoottee:: In the case of a horizontal pipe, mounting thesensor in the side of the pipe is preferred. Inthe case of a vertical pipe, mounting thesensor in a place where the water flowsupwards is preferred.

NNOOTTIICCEEOOvveerrttiigghhtteenniinngg!!DDoo nnoott eexxcceeeedd ttoorrqquuee ssppeecciiffiiccaattiioonnss aass iitt ccoouullddrreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee..

2. Insert the flow sensor probe (see item labeled “2”in the preceding figure) through the 1/2-in. NPTadapter so that 3 to 3.5 in. (7.6 to 8.9 cm) of theprobe’s length extends into the pipe. Tighten the 1/2-in. NPT adapter as needed to prevent leakage andkeep the probe from backing out under pressure.DDoo NNOOTT eexxcceeeedd 4400 fftt··llbb ((5544..22 NN··mm)) ooff ttoorrqquuee oonntthhee ffiittttiinngg.. SSeennssoorr ddaammaaggee ccaann ooccccuurr iiff iitt iissoovveerrttiigghhtteenneedd..

NNoottee:: When installed, the tip of the ifm efector®sensor probe must be at least 1 in. (2.54 cm)away from any pipe wall. Do NOT insert morethan 3.5 in. (8.9 cm) of the probe length intothe pipe.

3. Install the Micro DC Cable by inserting it throughthe wire openings on the back side of the controlpanel (see item labeled “3” in the preceding figure).Install the supplied Micro DC Cable (29.5 ft [9 m] inlength) to the Flow Probe and hand-tighten theconnector nut.

4. Plug the other end of the Micro DC Cable into theFlow Control Monitor with the Combicon connector(see item labeled “4” in the preceding figure). Referto the following figure for cable wiring.

NNOOTTIICCEEDDoo NNoott AAppppllyy EElleeccttrriiccaall PPoowweerr ttoo aaUUnniitt iinn aa VVaaccuuuumm!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouullddrreessuulltt iinn mmoottoorr aanndd ccoommpprreessssoorr ddaammaaggee..DDoo nnoott aappppllyy eelleeccttrriiccaall ppoowweerr ttoo aa mmoottoorr iinn aavvaaccuuuumm..FFoorr uunniittss wwiitthh iinnssiiddee--tthhee--ddeellttaa ssoolliidd ssttaatteessttaarrtteerrss,, ddiissccoonnnneecctt ppoowweerr ttoo uunniitt dduurriinnggeevvaaccuuaattiioonn oorr wwhheenn tthhee uunniitt iiss iinn aa ddeeeeppvvaaccuuuumm.. IInn aaddddiittiioonn,, oonn uunniittss wwiitthh iinnssiiddee--tthhee--ddeellttaa ssoolliidd ssttaattee ssttaarrtteerrss,, aallll ppoowweerr ttoo tthhee uunniittmmuusstt bbee ddiissccoonnnneecctteedd pprriioorr ttoo eevvaaccuuaattiinngg tthheeuunniitt aass lliinnee ppoowweerr iiss ddiirreeccttllyy aapppplliieedd ttoo tthheemmoottoorr tteerrmmiinnaallss 44,, 55,, aanndd 66..

5. Apply power to the chiller control panel to verify theFlow Control Monitor has power and the Low VoltBroken Wire Relay light is NOT lit.

6. Remove all air from the piping circuit prior toadjusting the low water flow setpoint.

7. Reduce the water flow to the minimum allowableflow and adjust the Flow setting on the FlowControl Monitor (see item labeled “7” in thefollowing figure). Adjusting the “Flow”potentiometer clockwise (+) reduces the flowsetting cutout and adjusting counterclockwise (-)increases the flow setting cutout.

NNoottee:: The “Temp” potentiometer on the ifmefector® control module has no effect inTrane application. It is NOT necessary tomake adjustments to the “Temp”potentiometer.

8. After the cutout setting is adjusted, the cutoutsetpoint will be indicated with a yellow light on theFlow Control Monitor LED bar graph display. Whenthe water flows are higher than the cutout, a greenlight will indicate proper flow status. If the flows fallbelow the cutout setpoint, a red light will indicatelow/no flow status.


CVHL-SVX01J-EN 27

Figure 12. ifm efector® flow sensing device terminalconnection

7

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Evaporator and condenser proof of flow switches(either flow or Delta-P) are required as shown on wiringdiagrams. These switches are used with control logic toconfirm flow prior to starting a unit and to stop arunning unit if flow is lost. For troubleshooting, aviewable diagnostic is generated if a proof of flowswitch does not close when flow is required.

Evaporator and CondenserWater PipingThe following two figures illustrate the recommended(typical) water piping arrangements for the evaporatorand condenser.

Figure 13. Typical evaporator water piping circuit

4

45

53

3

7

2

2 1

9

6

2

2

8

Outlet

Inlet

1. Balancing valve.

2. Gate (Isolation) valve or ball valve.

3. Thermometer (if field supplied).

4. Waterbox nozzle connection.

5. Drain, vent, and anode.

6. Strainer.

7. Chilled water flow switch (5S1). Flow switch 5S1may be installed in either the entering or leaving legof the chilled water circuit.

8. Pump.

9. Pressure gauge. It is recommended to pipe thegauge between entering and leaving pipes. Ashutoff valve on each side of the gauge allows theoperator to read either entering or leaving waterpressure.

Figure 14. Typical condenser water piping circuits

1 2

3

4 5

6

7 8

92

3

4 5

2

2

10

Outlet

Inlet

1. Balancing valve.

2. Gate (isolation) valve or ball valve.

3. Thermometer (if field supplied).

4. Waterbox nozzle connection.

5. Drain, vent, and anode.

6. Strainer.

7. Condenser water flow switch (5S2). Flow switch5S2 may be installed in either the entering orleaving leg of the chilled water circuit.

8. Three-way valve (optional).

9. Condenser water pump.

10. Pressure gauge. It is recommended to pipe a singlegauge between entering and leaving pipes.


28 CVHL-SVX01J-EN

NNootteess::

• Some type of field-supplied temperaturecontrol device may be required to regulatethe temperature of the heat-recoverycondenser water circuit. For applicationrecommendations, refer to Heat RecoverySeminar (Part 2): Systems/Equipment (AM-FND-8).

• Install a bypass valve system to avoidcirculating water through the auxiliary shellwhen the unit is shut down.

• On multiple-pass condensers, enteringcondenser water must enter at the lowestnozzle.

Piping must be arranged and supported to avoid stresson the equipment. It is strongly recommended that thepiping contractor does not run pipe closer than 3 ft(0.9 m) minimum to the equipment. This will allow forproper fit upon arrival of the unit at the job site. Anyadjustment that is necessary can be made to the pipingat that time. Expenses that result from a failure tofollow this recommendation will NOT be paid by Trane.

Water piping connection sizes and components areidentified in the tables in “Water PipingConnections,” p. 28 and “Grooved Pipe Coupling,” p.29. Remember that with many waterboxes, theentering and leaving evaporator water can be piped toeither waterbox connection when the tube bundles aresplit vertically. However, large evaporator waterboxeswith entering and leaving connections not at the samelevel must be connected with the entering water at thebottom and the leaving water at the top.

Waterboxes with multiple pass arrangements utilize abaffle to separate the passes. These baffles aredesigned for a maximum pressure of 20 psid(137.9 kPaD). If larger pressure drops are expected inthe application, contact your local Trane representativeto discuss special waterbox options.

IImmppoorrttaanntt:: Water flows must be piped in accordancewith nameplate designation.

Field-provided isolation valves for the evaporator andcondenser water lines should be installed upstreamand downstream of the heat exchangers, and beinstalled far enough away from the chiller to alsoprovide practical service isolation for flow sensingdevices, field thermometers, flexible connectors, andany removable pipe spools.

Ensure that the evaporator water piping is clear; checkit after the chilled water pump is operated but beforeinitial chiller start-up. If any partial blockages exist, theycan be detected and removed to prevent possible tubedamage resulting from evaporator freeze-up orerosion.

For condenser and large evaporator connections,arrange the water piping so that the water supplyenters the shell at the lower connection and exits fromthe top connection. Operational problems may result if

this piping is not correct. Some shells may be piped asdesired since both connections are at the same level.

For applications that include an “infinite source” or“multiple-use” cooling condenser water supply, installa valved bypass “leg” (optional) between the supplyand return pipes. This valved bypass allows theoperator to short-circuit water flow through the coolingcondenser when the supply water temperature is toolow.

NNoottee:: System refrigerant pressure differential must bemaintained above 3 psid (20.7 kPaD) at all times.Failure to do so could result in operatingproblems.

Water Piping ConnectionsAll standard units use grooved-pipe connections.These are grooved-end NSP (Victaulic® style) pipeconnections. Flanged connections are optional.

Piping joined using grooved type couplings, like alltypes of piping systems, requires proper support tocarry the weight of pipes and equipment. The supportmethods used must eliminate undue stresses on joints,piping, and other components, allow movement whererequired, and provide for any other specialrequirements (i.e., drainage, etc.).

NNoottee:: If needed, plug-type sensor extension cables areavailable for purchase from Trane Parts Service.These sensor extension cables may be necessaryif the waterboxes are changed or if thetemperature sensors are moved out into the unitpiping for better mixed temperature readings.

Table 4. Evaporator water piping connection sizes

EVSZ(a)Nominal Pipe Size

1-Pass 2-Pass 3-Pass

in. mm in. mm in. mm

080 12 323.9 10 273.0 8 219.1

142 16 406.4 12 323.9 10 273.0

210 16 406.4 14 355.6 12 323.9

250 16 406.4 14 355.6 12 323.9(a) EVSZ = Evaporator Shell Size; S = Short Shell, L = Long Shell, E =

Extended Shell

Table 5. Condenser water piping connection sizes

CDSZ(a)Nominal Pipe Size

2-Pass

in. mm

080 10 273.0

142 12 323.9

210 14 355.6

250 14 355.6(a) CDSZ =Condenser Shell Size; S = Short Shell, L = Long Shell, E =

Extended Shell


CVHL-SVX01J-EN 29

Figure 15. Typical grooved pipe connection

Waterbox LocationsIImmppoorrttaanntt:: Do NOT exchange positions of marine-style

waterboxes. Proper unit operation andproper water flow could be affected byrepositioning marine-style waterboxes.Contact CenTraVac™ Chiller TechnicalService for more information.

If necessary, the non-marine-style waterboxes on eachshell—whether evaporator or condenser—can beswitched end-for-end to obtain the desired pipingarrangement.

If removal of waterboxes is necessary, refer to“Waterbox Removal and Installation,” p. 80.

If the waterboxes on any of the shells are exchangedend-for-end, be sure to reinstall them right-side up tomaintain the correct baffle arrangements. Use a newgasket with each waterbox cover.

Grooved Pipe CouplingA customer-supplied, standard flexible grooved pipecoupling (Victaulic® Style 77 or equivalent) should beused to complete the Victaulic® connection for both150 psig (1034.2 kPaG) and 300 psig (2068.4 kPaG)waterboxes.

When a flexible coupling such as this is installed at thewaterbox connections, other flexible piping connectors(i.e., braided-steel, elastomeric arch, etc.) are notusually required to attenuate vibration and/or preventstress on the connections.

Table 6. Water piping connection components

UnitModel

Unit ConnectionType

Customer Piping Connection

Victaulic® Flanged

CVHL

Flanged(Condenser 032–050 150 psig[1034.2 kPaG]non-marine only)

CustomerprovidedVictaulic®coupling

No adapterrequired

CVHLVictaulic® (all

others)

CustomerprovidedVictaulic®coupling

Trane providedVictaulic®-to-flange adapter

Figure 16. Customer piping connection types

Flanged Victaulic®Waterbox Waterbox

Customer

Flange AdaptorTrane provided

Style 77 FlexibleCustomer provided

NNootteess::

• Refer to the coupling manufacturer’sguidelines for specific informationconcerning proper piping system designand construction methods for groovedwater piping systems.

• Flexible coupling gaskets require properlubrication before installation to provide agood seal. Refer to the couplingmanufacturer’s guidelines for properlubricant type and application.

Flange-connection AdaptersNNOOTTIICCEE

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30 CVHL-SVX01J-EN

When flat-face flange connections are specified, flange-to-groove adapters are provided (Victaulic® Style 741for 150 psig [1034.2 kPaG] systems; Style 743 for300 psig [2068.4 kPaG] systems). The adapters areshipped screwed to one of the chiller end-supports.Adapter descriptions are given in the tables in“Victaulic Gasket Installation,” p. 30. The flangeadapters provide a direct, rigid connection of flangedcomponents to the grooved-pipe chiller waterboxconnections.

Figure 17. Typical shipping location for flange

Leg support

Screw Adapter

In this case, the use of flexible type connectors (i.e.,braided steel, elastomeric arch, etc.) are recommendedto attenuate vibration and prevent stress at thewaterbox connections. Flange adapters are notprovided for CVHL CenTraVac™ chillers with 300 psig(2068.4 kPaG) waterboxes that have 14 in. (355.6 mm)and 16 in. (406.4 mm) piping connections.

All flange-to-flange assembly screws must be providedby the installer. Hex head screw sizes and numberrequired are included in the tables in “Victaulic GasketInstallation,” p. 30. The four draw-bolts needed for the14 in. (355.6 mm) and 16 in. (406.4 mm) Style 741(150 psig [1034.2 kPaG]) adapters are provided. TheStyle 741 (150 psig [1034.2 kPaG]) flange adapterrequires a smooth, hard surface for a good seal.

Connection to other type flange faces (i.e., raised,serrated, rubber, etc.) requires the use of a flangewasher between the faces. Refer to the flange adaptermanufacturer’s guidelines for specific information.

The Style 743 (300 psig [2068.4 kPaG]) flange adaptersare designed to mate with raised-face flanges. Theycan be used with flat-faced flanges, but only if theraised projections on the outside face of the adapterare removed; refer to the following figure. The flange-adapter gasket must be placed with the color-coded lipon the pipe and the other lip facing the mating flange.

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Figure 18. Modifying 300 psig (2068.4 kPaG) flangeadaptors for flat-faced flange application

Remove to mateto flat-faced flanges

Victaulic Gasket Installation1. Inspect supplied gasket to be certain it is suited for

intended service (code identifies gasket grade).Apply a thin coat of silicone lubricant to gasket tipsand outside of gasket.

2. Install gasket, placing gasket over pipe end andmaking sure gasket lip does not overhang pipe end.Refer to the following figure for gasketconfiguration.

3. Align and bring two pipe ends together and slidegasket into position centered between the grooveson each pipe. No portion of the gasket shouldextend into the groove on either pipe.

4. Open fully and place hinged Victaulic® flangearound the grooved pipe end with the circular keysection locating into the groove.

5. Insert a standard hex head screw through themating holes of the Victaulic® flange to secure theflange firmly in the

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