installation, operation, and maintenance€¦ · cvhe-svx02m-en 3 warning follow ehs policies!...

X39641075120

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

March 2017 CCVVHHEE--SSVVXX0022MM--EENN

CVHE, CVHF, and CVHG Water-Cooled CenTraVac™™ChillersWith Tracer® AdaptiView™ Control

CVHECVHFCVHG

Installation, Operation,and Maintenance

©2017 Ingersoll Rand All rights reserved CVHE-SVX02M-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:

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

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

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

Important Environmental ConcernsScientific research has shown that certain man-madechemicals can affect the earth’s naturally occurringstratospheric ozone layer when released to theatmosphere. In particular, several of the identifiedchemicals that may affect the ozone layer arerefrigerants that contain Chlorine, Fluorine and Carbon(CFCs) and those containing Hydrogen, Chlorine,Fluorine and Carbon (HCFCs). Not all refrigerantscontaining these compounds have the same potentialimpact to the environment. Trane advocates theresponsible handling of all refrigerants-includingindustry replacements for CFCs and HCFCs such assaturated or unsaturated HFCs and HCFCs.

Important Responsible RefrigerantPracticesTrane believes that responsible refrigerant practicesare important to the environment, our customers, andthe air conditioning industry. All technicians whohandle refrigerants must be certified according to localrules. For the USA, the Federal Clean Air Act (Section608) sets forth the requirements for handling,reclaiming, recovering and recycling of certainrefrigerants and the equipment that is used in theseservice procedures. In addition, some states ormunicipalities may have additional requirements thatmust also be adhered to for responsible managementof refrigerants. Know the applicable laws and followthem.

WWAARRNNIINNGGPPrrooppeerr FFiieelldd WWiirriinngg aanndd GGrroouunnddiinnggRReeqquuiirreedd!!FFaaiilluurree ttoo ffoollllooww ccooddee ccoouulldd rreessuulltt iinn ddeeaatthh oorrsseerriioouuss iinnjjuurryy..AAllll ffiieelldd wwiirriinngg MMUUSSTT bbee ppeerrffoorrmmeedd bbyy qquuaalliiffiieeddppeerrssoonnnneell.. IImmpprrooppeerrllyy iinnssttaalllleedd aanndd ggrroouunnddeeddffiieelldd wwiirriinngg ppoosseess FFIIRREE aanndd EELLEECCTTRROOCCUUTTIIOONNhhaazzaarrddss.. TToo aavvooiidd tthheessee hhaazzaarrddss,, yyoouu MMUUSSTT ffoolllloowwrreeqquuiirreemmeennttss ffoorr ffiieelldd wwiirriinngg iinnssttaallllaattiioonn aannddggrroouunnddiinngg aass ddeessccrriibbeedd iinn NNEECC aanndd yyoouurr llooccaall//ssttaattee//nnaattiioonnaall eelleeccttrriiccaall ccooddeess..

WWAARRNNIINNGGPPeerrssoonnaall PPrrootteeccttiivvee EEqquuiippmmeenntt ((PPPPEE))RReeqquuiirreedd!!FFaaiilluurree ttoo wweeaarr pprrooppeerr PPPPEE ffoorr tthhee jjoobb bbeeiinngguunnddeerrttaakkeenn ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..TTeecchhnniicciiaannss,, iinn oorrddeerr ttoo pprrootteecctt tthheemmsseellvveess ffrroommppootteennttiiaall eelleeccttrriiccaall,, mmeecchhaanniiccaall,, aanndd cchheemmiiccaallhhaazzaarrddss,, MMUUSSTT ffoollllooww pprreeccaauuttiioonnss iinn tthhiiss mmaannuuaallaanndd oonn tthhee ttaaggss,, ssttiicckkeerrss,, aanndd llaabbeellss,, aass wweellll aass tthheeiinnssttrruuccttiioonnss bbeellooww::

•• BBeeffoorree iinnssttaalllliinngg//sseerrvviicciinngg tthhiiss uunniitt,,tteecchhnniicciiaannss MMUUSSTT ppuutt oonn aallll PPPPEE rreeqquuiirreedd ffoorrtthhee wwoorrkk bbeeiinngg uunnddeerrttaakkeenn ((EExxaammpplleess;; ccuuttrreessiissttaanntt gglloovveess//sslleeeevveess,, bbuuttyyll gglloovveess,, ssaaffeettyyggllaasssseess,, hhaarrdd hhaatt//bbuummpp ccaapp,, ffaallll pprrootteeccttiioonn,,eelleeccttrriiccaall PPPPEE aanndd aarrcc ffllaasshh ccllootthhiinngg))..AALLWWAAYYSS rreeffeerr ttoo aapppprroopprriiaattee MMaatteerriiaall SSaaffeettyyDDaattaa SShheeeettss ((MMSSDDSS))//SSaaffeettyy DDaattaa SShheeeettss((SSDDSS)) aanndd OOSSHHAA gguuiiddeelliinneess ffoorr pprrooppeerr PPPPEE..

•• WWhheenn wwoorrkkiinngg wwiitthh oorr aarroouunndd hhaazzaarrddoouusscchheemmiiccaallss,, AALLWWAAYYSS rreeffeerr ttoo tthhee aapppprroopprriiaatteeMMSSDDSS//SSDDSS aanndd OOSSHHAA//GGHHSS ((GGlloobbaallHHaarrmmoonniizzeedd SSyysstteemm ooff CCllaassssiiffiiccaattiioonn aannddLLaabbeelllliinngg ooff CChheemmiiccaallss)) gguuiiddeelliinneess ffoorriinnffoorrmmaattiioonn oonn aalllloowwaabbllee ppeerrssoonnaall eexxppoossuurreelleevveellss,, pprrooppeerr rreessppiirraattoorryy pprrootteeccttiioonn aannddhhaannddlliinngg iinnssttrruuccttiioonnss..

•• IIff tthheerree iiss aa rriisskk ooff eenneerrggiizzeedd eelleeccttrriiccaallccoonnttaacctt,, aarrcc,, oorr ffllaasshh,, tteecchhnniicciiaannss MMUUSSTT ppuuttoonn aallll PPPPEE iinn aaccccoorrddaannccee wwiitthh OOSSHHAA,, NNFFPPAA7700EE,, oorr ootthheerr ccoouunnttrryy--ssppeecciiffiicc rreeqquuiirreemmeennttssffoorr aarrcc ffllaasshh pprrootteeccttiioonn,, PPRRIIOORR ttoo sseerrvviicciinnggtthhee uunniitt.. NNEEVVEERR PPEERRFFOORRMM AANNYY SSWWIITTCCHHIINNGG,,DDIISSCCOONNNNEECCTTIINNGG,, OORR VVOOLLTTAAGGEE TTEESSTTIINNGGWWIITTHHOOUUTT PPRROOPPEERR EELLEECCTTRRIICCAALL PPPPEE AANNDDAARRCC FFLLAASSHH CCLLOOTTHHIINNGG.. EENNSSUURREEEELLEECCTTRRIICCAALL MMEETTEERRSS AANNDD EEQQUUIIPPMMEENNTT AARREEPPRROOPPEERRLLYY RRAATTEEDD FFOORR IINNTTEENNDDEEDDVVOOLLTTAAGGEE..

CVHE-SVX02M-EN 3

WWAARRNNIINNGGFFoollllooww EEHHSS PPoolliicciieess!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinnddeeaatthh oorr sseerriioouuss iinnjjuurryy..

•• AAllll IInnggeerrssoollll RRaanndd ppeerrssoonnnneell mmuusstt ffoolllloowwIInnggeerrssoollll RRaanndd EEnnvviirroonnmmeennttaall,, HHeeaalltthh aannddSSaaffeettyy ((EEHHSS)) ppoolliicciieess wwhheenn ppeerrffoorrmmiinngg wwoorrkkssuucchh aass hhoott wwoorrkk,, eelleeccttrriiccaall,, ffaallll pprrootteeccttiioonn,,lloocckkoouutt//ttaaggoouutt,, rreeffrriiggeerraanntt hhaannddlliinngg,, eettcc.. AAllllppoolliicciieess ccaann bbee ffoouunndd oonn tthhee BBOOSS ssiittee.. WWhheerreellooccaall rreegguullaattiioonnss aarree mmoorree ssttrriinnggeenntt tthhaanntthheessee ppoolliicciieess,, tthhoossee rreegguullaattiioonnss ssuuppeerrsseeddeetthheessee ppoolliicciieess..

•• NNoonn--IInnggeerrssoollll RRaanndd ppeerrssoonnnneell sshhoouulldd aallwwaayyssffoollllooww llooccaall rreegguullaattiioonnss..

WWAARRNNIINNGGRReeffrriiggeerraanntt MMaayy BBee UUnnddeerr PPoossiittiivveePPrreessssuurree!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinnaann eexxpplloossiioonn wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorrsseerriioouuss iinnjjuurryy oorr eeqquuiippmmeenntt ddaammaaggee..SSyysstteemm ccoonnttaaiinnss rreeffrriiggeerraanntt aanndd mmaayy bbee uunnddeerrppoossiittiivvee pprreessssuurree;; ssyysstteemm mmaayy aallssoo ccoonnttaaiinn ooiill..RReeccoovveerr rreeffrriiggeerraanntt ttoo rreelliieevvee pprreessssuurree bbeeffoorreeooppeenniinngg tthhee ssyysstteemm.. SSeeee uunniitt nnaammeeppllaattee ffoorrrreeffrriiggeerraanntt ttyyppee.. DDoo nnoott uussee nnoonn--aapppprroovveeddrreeffrriiggeerraannttss,, rreeffrriiggeerraanntt ssuubbssttiittuutteess,, oorr nnoonn--aapppprroovveedd rreeffrriiggeerraanntt aaddddiittiivveess..

NNOOTTIICCEEEEqquuiippmmeenntt DDaammaaggee!!MMiixxiinngg rreeffrriiggeerraannttss oorr ooiillss ccoouulldd rreessuulltt iinneeqquuiippmmeenntt ddaammaaggee iinncclluuddiinngg bbeeaarriinngg ddaammaaggee,,iinnttrroodduuccttiioonn ooff aacciiddss iinnttoo tthhee cchhiilllleerr,, oorr ccoonnttiinnuuoouussppuurrggee ppuummpp--oouutt iinn hhiigghh--hheeaadd//hhiigghh aammbbiieennttaapppplliiccaattiioonnss..CCeennTTrraaVVaacc cchhiilllleerrss aarree mmaannuuffaaccttuurreedd wwiitthhddiiffffeerreenntt rreeffrriiggeerraanntt//ooiill ssyysstteemmss:: RR--112233 cchhiilllleerrssuussiinngg OOIILL0000002222 aanndd RR--551144AA cchhiilllleerrss uussiinnggOOIILL0000333344//OOIILL0000333355..VVeerriiffyy pprrooppeerr rreeffrriiggeerraanntt aanndd ooiill ffoorr yyoouurr cchhiilllleerraanndd ddoo NNOOTT mmiixx rreeffrriiggeerraannttss oorr ooiillss!!

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

• R-123 and OIL00022

• R-514A and OIL00334/OIL00335

IImmppoorrttaanntt:: Verify proper refrigerant and oil for yourchiller before proceeding!

NNOOTTIICCEEDDoo NNoott UUssee NNoonn--CCoommppaattiibbllee PPaarrttss oorrMMaatteerriiaallss!!UUssee ooff nnoonn--ccoommppaattiibbllee ppaarrttss oorr mmaatteerriiaallss ccoouullddrreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee..OOnnllyy ggeennuuiinnee TTrraannee®® rreeppllaacceemmeenntt ccoommppoonneennttsswwiitthh iiddeennttiiccaall TTrraannee ppaarrtt nnuummbbeerrss sshhoouulldd bbee uusseeddiinn TTrraannee CCeennTTrraaVVaacc cchhiilllleerrss.. TTrraannee aassssuummeess nnoorreessppoonnssiibbiilliittyy ffoorr ddaammaaggeess rreessuullttiinngg ffrroomm tthhee uusseeooff nnoonn--ccoommppaattiibbllee ppaarrttss oorr mmaatteerriiaallss..

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

https://home.ingerrand.com/sites/bosondemand/Lists/Playbook%20Item/DispForm.aspx?ID=58&k=EHS

4 CVHE-SVX02M-EN

Revision HistoryUpdates to:

• “Water Flow Detection Controller and Sensor,” p.28 (ifm efector® flow detection sensor)

• “CenTraVac™ Chiller Installation Completion andRequest for Trane Service,” p. B–1

• “CVHE, CVHF, and CVHG CenTraVac™ ChillerAnnual Inspection List,” p. D–1

• Running edits

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.

IInnttrroodduuccttiioonn

CVHE-SVX02M-EN 5

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

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

Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10ASHRAE Standard 15 Compliance . . . . . . . . 10

Unit Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Installation Requirements andContractor Responsibilities . . . . . . . . . . . . . . . 10

Storage Requirements . . . . . . . . . . . . . . . . . . . 12

Unit Components. . . . . . . . . . . . . . . . . . . . . . . . 14

Unit Clearances and Weights . . . . . . . . . . . . . . 15Recommended Unit Clearances. . . . . . . . . . . 15

General Weights. . . . . . . . . . . . . . . . . . . . . . . . . 16Weights (lb) . . . . . . . . . . . . . . . . . . . . . . . . . 16Weights (kg) . . . . . . . . . . . . . . . . . . . . . . . . . 19

Installation: Mechanical . . . . . . . . . . . . . . . . . . . 22Operating Environment . . . . . . . . . . . . . . . . . . 22

Foundation Requirements . . . . . . . . . . . . . . . . 22

Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Standard Chiller Lift . . . . . . . . . . . . . . . . . . 22Special Lift Requirements. . . . . . . . . . . . . 24

Unit Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Isolation Pads . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Spring Isolators . . . . . . . . . . . . . . . . . . . . . . . . . 24

Leveling the Unit . . . . . . . . . . . . . . . . . . . . . . . . 26

Installation: Water Piping . . . . . . . . . . . . . . . . . . 27Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Water Treatment . . . . . . . . . . . . . . . . . . . . . . . . 27

Pressure Gauges . . . . . . . . . . . . . . . . . . . . . . . . 27

Valves—Drains and Vents . . . . . . . . . . . . . . . . 27

Strainers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Required Flow-Sensing Devices. . . . . . . . . . . 28Paddle Switches . . . . . . . . . . . . . . . . . . . . . 28Water Flow Detection Controller andSensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Evaporator and Condenser WaterPiping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Water Piping Connections . . . . . . . . . . . . . . . . 31

Waterbox Locations . . . . . . . . . . . . . . . . . . . . . 32

Grooved Pipe Coupling . . . . . . . . . . . . . . . . . . 32

Flange-connection Adapters . . . . . . . . . . . . . . 32

Victaulic Gasket Installation . . . . . . . . . . . . . . 33

Bolt-Tightening Sequence for WaterPiping Connections . . . . . . . . . . . . . . . . . . . . . . 34

Flanges with 4, 8, or 12 Bolts . . . . . . . . . . 35Flanges with 16, 20, or 24 Bolts. . . . . . . . 35Flanges with More than 24 Bolts. . . . . . . 35Evaporator Waterbox Covers . . . . . . . . . 36

Pressure Testing Waterside Piping . . . . . . . . 36

Vent Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Refrigerant Vent Line . . . . . . . . . . . . . . . . . . . . 37

General Requirements. . . . . . . . . . . . . . . . 37Purge Discharge . . . . . . . . . . . . . . . . . . . . . 37Vent Line Materials. . . . . . . . . . . . . . . . . . . 37Vent Line Sizing. . . . . . . . . . . . . . . . . . . . . . 37

Vent Line Installation. . . . . . . . . . . . . . . . . . . . . 38

Vent Line Sizing Reference . . . . . . . . . . . . . . . 41

Insulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Unit Insulation Requirements . . . . . . . . . . . . . 44

Insulation Thickness Requirements . . . . . . . 44Factory Applied Insulation . . . . . . . . . . . . 44

Installation: Controls . . . . . . . . . . . . . . . . . . . . . . 46UC800 Specifications . . . . . . . . . . . . . . . . . . . . 46

Power Supply. . . . . . . . . . . . . . . . . . . . . . . . 46Wiring and Port Descriptions. . . . . . . . . . 46Communication Interfaces . . . . . . . . . . . . 47Rotary Switches . . . . . . . . . . . . . . . . . . . . . 47LED Description and Operation. . . . . . . . 47

Installing the Tracer AdaptiViewDisplay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Adjusting the Tracer AdaptiView DisplayArm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Electrical Requirements . . . . . . . . . . . . . . . . . . . 53Installation Requirements . . . . . . . . . . . . . . . . 53

Electrical Requirements . . . . . . . . . . . . . . . . . . 53

Trane-supplied Starter Wiring . . . . . . . . . . . . 54

Table of Contents

6 CVHE-SVX02M-EN

Customer-supplied Remote StarterWiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Current Transformer and PotentialTransformer Wire Sizing . . . . . . . . . . . . . . . . . 55

Power Supply Wiring . . . . . . . . . . . . . . . . . . . . . . 57Three-Phase Power . . . . . . . . . . . . . . . . . . . . . . 57

Circuit Breakers and FusedDisconnects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Power Factor Correction Capacitors(Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Interconnecting Wiring. . . . . . . . . . . . . . . . . . . 58

Starter to Motor Wiring (Remote-Mounted Starters Only) . . . . . . . . . . . . . . . . . . 59

Ground Wire Terminal Lugs. . . . . . . . . . . 59Terminal Clamps. . . . . . . . . . . . . . . . . . . . . 60Wire Terminal Lugs . . . . . . . . . . . . . . . . . . 60Bus Bars . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Starter to Control Panel Wiring . . . . . . . . . . . 61

10 to 13.8kV Medium Voltage Motor . . . . . . . 62Motor Terminal Box . . . . . . . . . . . . . . . . . . . . . 62

Motor Supply Wiring. . . . . . . . . . . . . . . . . . . . . 63Motor Terminals . . . . . . . . . . . . . . . . . . . . . 63Ground Wire Terminal Lug. . . . . . . . . . . . 63

System Control Circuit Wiring (FieldWiring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Water Pump Interlock Circuits and FlowSwitch Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Chilled Water Pump . . . . . . . . . . . . . . . . . . 65Chilled Water Proof of Flow . . . . . . . . . . . 65Condenser Water Pump . . . . . . . . . . . . . . 65Condenser Water Proof of Flow . . . . . . . 65

Temperature Sensor Circuits . . . . . . . . . . . . . 65CWR—Outdoor Option . . . . . . . . . . . . . . . 66Optional Control and OutputCircuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66Optional Tracer CommunicationInterface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Starter Module Configuration. . . . . . . . . . . . . 66

Schematic Wiring Drawings . . . . . . . . . . . . . . 66

Operating Principles . . . . . . . . . . . . . . . . . . . . . . . 67

General Requirements . . . . . . . . . . . . . . . . . . . 67

Cooling Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . 67CVHE and CVHG 3-StageCompressor . . . . . . . . . . . . . . . . . . . . . . . . . 67CVHF 2-Stage Compressor. . . . . . . . . . . . 67

Oil and Refrigerant Pump . . . . . . . . . . . . . . . . 68Compressor LubricationSystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Motor Cooling System . . . . . . . . . . . . . . . . . . . 70

Tracer AdaptiView Display . . . . . . . . . . . . . . . 70

Start-up and Shut-down . . . . . . . . . . . . . . . . . . . 71Sequence of Operation. . . . . . . . . . . . . . . . . . . 71

Software Operation OverviewDiagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71Start-up Sequence of Operation—Wye-delta . . . . . . . . . . . . . . . . . . . . . . . . . . . 72Power Up Diagram . . . . . . . . . . . . . . . . . . . 76

Ice Machine Control. . . . . . . . . . . . . . . . . . . . . . 76

Free Cooling Cycle . . . . . . . . . . . . . . . . . . . . . . . 78Free Cooling (FRCL) . . . . . . . . . . . . . . . . . . 79

Hot Gas Bypass (HGBP) . . . . . . . . . . . . . . . . . . 79

Hot Water Control . . . . . . . . . . . . . . . . . . . . . . . 79

Heat Recovery Cycle . . . . . . . . . . . . . . . . . . . . . 80

Auxiliary Condensers . . . . . . . . . . . . . . . . . . . . 80

Control Panel Devices and Unit-MountedDevices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Unit Control Panel . . . . . . . . . . . . . . . . . . . 80User-Defined LanguageSupport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Unit Start-up and Shut-downProcedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Daily Unit Start-up . . . . . . . . . . . . . . . . . . . 81Seasonal Unit Start-up . . . . . . . . . . . . . . . 82Daily Unit Shut-down . . . . . . . . . . . . . . . . 82Seasonal Unit Shut-down. . . . . . . . . . . . . 82

Recommended Maintenance . . . . . . . . . . . . . . 83Record Keeping Forms . . . . . . . . . . . . . . . . . . . 83

Normal Operation . . . . . . . . . . . . . . . . . . . . . . . 83

Recommended Compressor OilChange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Purge System . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

TTaabbllee ooff CCoonntteennttss

CVHE-SVX02M-EN 7

Leak Checking Based on Purge PumpOut Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Long Term Unit Storage. . . . . . . . . . . . . . . . . . 86

Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . 87

Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Recommended SystemMaintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . 87Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . 88Waterbox and Tubesheet ProtectiveCoatings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88Sacrificial Anodes. . . . . . . . . . . . . . . . . . . . 88

Waterbox Removal and Installation . . . . . . . 89Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . 90

Torque Requirements and WaterboxWeights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Connection Devices Information . . . . . . . . . . 91

Forms and Check Sheets . . . . . . . . . . . . . . . . .A–1Unit Start-up/Commissioning. . . . . . . . . . . . A–1

CenTraVac™ Chiller InstallationCompletion and Request for TraneService . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B–1

CVHE, CVHF, and CVHG CenTraVac™Chiller Start-up Tasks to be Performed byTrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C–1

CVHE, CVHF, and CVHG CenTraVac™Chiller Annual Inspection List. . . . . . . . . . . . .D–1

CVHE, CVHF, and CVHG CenTraVac™Chiller Operator Log . . . . . . . . . . . . . . . . . . . . . . E–1

TTaabbllee ooff CCoonntteennttss

8 CVHE-SVX02M-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 starters are identified by aseparate number found on the starter.

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

CVHE-SVX02M-EN 9

Model Number Descriptions

Digit 1, 2, 3 — Unit Function

Digit 4 — Development Sequence

Digit 5, 6, 7 — Nominal Tonnage

Digit 8 — Unit Voltage

Digit 9 — Unit Type

Digit 10, 11 — Design Sequence

Digit 12 — Hot Gas Bypass

Digit 13 — Starter Type

Digit 14 — Control Enclosure

Digit 15 — Compressor Motor Power(CPKW)

Digit 16, 17, 18— Compressor ImpellerCutback

Digit 19 — Evaporator Shell Size

Digit 20 — Evaporator Tube Bundle(Nominal Tons)

Digit 21 — Evaporator Tubes

Digit 22 — EvaporatorWaterbox

Digit 23 — Condenser Shell Size

Digit 24 — Condenser Tube Bundle(Nominal Tons)

Digit 25 — Condenser Tubes

Digit 26 — CondenserWaterbox

Digit 27 — Heat Recovery CondenserShell Size

Digit 28 — Heat Recovery CondenserTube Bundle (Nominal Tons)

Digit 29 — Heat Recovery Tubes

Digit 30 — Heat Recovery CondenserWaterbox

Digit 31 — Auxiliary Condenser Size andWaterbox

Digit 32— Auxiliary Condenser Tubes

Digit 33— Orifice Size

Digit 34— Orifice Size

Digit 35— Unit Option: Insulation andRuptureGuard™™

Digit 36— Enhanced Protection

Digit 37— Generic BAS

Digit 38— Extended Operation

Digit 39— Tracer CommunicationInterface

Digit 40— Condenser RefrigerantControl

Digit 41—Manufacturing Location

Digit 42— Special Options

Digit 43—Water Flow Control

Digit 44— ChilledWater Reset

Digit 45— Heat Recovery TemperatureSensors

Digit 46— Gas Powered Chiller

Digit 47— Compressor Motor Frame Size

Digit 48— Volute Discharge Angle

Digit 49— Operating Status

Digit 50— Industrial Chiller Package

Digit 51— Control Power Transformer

Digit 52—Motor and Terminal BoardConfiguration

10 CVHE-SVX02M-EN

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. Figure3, p. 14 shows an illustration of a typical unit and itscomponents. As soon as the unit arrives at the job site,inspect it thoroughly for damage and materialshortages. 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 isprovided.

WWAARRNNIINNGGCCoommbbuussttiibbllee MMaatteerriiaall!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinnddeeaatthh oorr sseerriioouuss iinnjjuurryy oorr eeqquuiippmmeenntt ddaammaaggee..SShhrriinnkk--wwrraapp iiss aa ccoommbbuussttiibbllee mmaatteerriiaall.. AAvvooiidd ooppeennffllaammeess aanndd hhoott ssppaarrkkss..

CVHE-SVX02M-EN 11

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

• Clevis connectors

• 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)

• Unit-mounted starter(optional)

• 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. 28 or Traneliterature that shippedwith the device

• Remote-mountedstarter (optional)

• Circuit breakers or fusible disconnects (optional)

• Electrical connections to unit-mounted starter(optional)

• Electrical connections to remote-mounted starter(optional)

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

• PFCCs (remote mounted starter optional only)

• 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)

PPrree--IInnssttaallllaattiioonn

12 CVHE-SVX02M-EN

Type of Requirement Trane SuppliedTrane Installed

Trane SuppliedField Installed

Field SuppliedField Installed

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

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)

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

“CenTraVac™ ChillerInstallation Completionand Request for TraneService,” p. B–1 (CTV-ADF001*-EN; refer to“Forms and CheckSheets,” p. A–1)

• 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 RequirementsNNOOTTIICCEE

IInnssuullaattiioonn DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww tthheessee iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinniinnssuullaattiioonn ddaammaaggee..TToo pprreevveenntt ddaammaaggee ttoo ffaaccttoorryy iinnssttaalllleedd iinnssuullaattiioonn::•• DDoo nnoott aallllooww tthhee iinnssuullaattiioonn ttoo bbee eexxppoosseedd ttooeexxcceessssiivvee ssuunnlliigghhtt.. SSttoorree iinnddoooorrss oorr ccoovveerr wwiitthhccaannvvaass ttoo pprreevveenntt eexxppoossuurree..•• DDoo nnoott uussee tthhiinnnneerrss aanndd ssoollvveennttss oorr ootthheerr ttyyppeessooff ppaaiinntt.. UUssee oonnllyy wwaatteerr bbaassee llaatteexx..

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






CVHE-SVX02M-EN 13

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.


14 CVHE-SVX02M-EN

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

designated as the front side of the unit.

Figure 3. Typical CVHF CenTraVac™™ chiller

1. Suction Elbow

2. Compressor

3. Terminal Box

4. Control Panel

5. Condenser

6. Motor Housing

7. Economizer

8. Oil Tank Assembly

9. Purge

10. Evaporator

11. Display Panel


CVHE-SVX02M-EN 15

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

Table 1. Clearance requirements

Evaporator Size Shell ComboA B C D E

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

032 Short/Long

Short/Short 45 114 141 358 321 815 34 86 53 134

Short/Long 77 195 219 556 431 1094 34 86 53 134

Long/Long 45 114 187 474 411 1043 34 86 53 134

050 Short/Long

Short/Short 45 114 141 358 321 815 40 101 62 157

Short/Long 78 198 219 556 431 1094 40 101 62 157

Long/Long 45 114 187 474 411 1043 40 101 62 157

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

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

16 CVHE-SVX02M-EN

Table 1. Clearance requirements (continued)

Evaporator Size Shell ComboA B C D E

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

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

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

NNoottee:: 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

CVHE

230–320233

032S 032S14828 13469 — —

289 — — 16508 15149

230–320 289 032S 032L 15433 13924 17113 15604

230–320 289 032L 032L 16277 14574 17957 16254

230–320 289 050S 050S 20035 17599 21715 19279

230–320 289 050S 050L 21001 18356 22681 20036

230–320 289 050L 050L 22352 19304 24032 20984

360–500 455 050S 050S 20717 18281 22397 19961

360–500 455 050S 050L 21683 19038 23363 20718

360–500 455 050L 050L 23034 19986 24714 21666

360–500 455 050S 080S 23200 20265 24880 21945

360–500 455 050L 080L 26793 22976 28473 24656

360–500 455 080S 080S 29854 25634 31534 27314

360–500 455 080S 080L 31442 26917 33122 28597

360–500 455 080L 080L 33463 28333 35143 30013

CVHF

350–570 588 050S 050S 20487 17984 22167 19664

350–570 588 050S 050L 21453 18741 23133 20421

350–570 588 050L 050L 22703 19567 24383 21247

350–570 588 050S 080S 22970 19968 24650 21648

350–570 588 050L 080L 26512 22557 28192 24237

350–570 588 080S 080S 31845 26997 32173 27715

UUnniitt CClleeaarraanncceess aanndd WWeeiigghhttss

CVHE-SVX02M-EN 17

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

ModelComp Size



350–570 588 080S 080L 32131 27318 33811 28998

350–570 588 080L 080L 34319 28855 35999 30535

350–910 957 080S 080S 32843 28385 35843 31385

350–910 957 080S 080L 34481 29668 37481 32668

350–910 957 080L 080L 36669 31205 39669 34205

350–910 957 080L 142L 44814 37663 47814 40663

350–910 957 142M 142L 48446 40540 51446 43540

350–910 957 142L 142L 49667 41453 52667 44453

1070–1300 1062 080L 142L 45710 38559 48710 41559

1070–1300 1062 142M 142L 49116 41210 52116 44210

1070–1300 1062 142L 142L 50337 42123 53337 45123

1070–1300 1062 142E 142L 51762 43109 54762 46109

1070–1300 1062 142M 210L 55062 46057 58062 49057

1070–1300 1062 142L 210L 56333 46970 59333 49970

1070–1300 1062 142E 210L 57758 47956 60758 50956

1070–1300 1062 210L 210L 61899 51929 64899 54929

1070–1300 1062 250E 250L 76152 63330 79152 66330

1470 1340 210L 210L 64550 54580 67550 57580

1470–1720 1340 142L 210L 58984 49621 61984 52621

1470–1720 1340 250E 250L 78803 65981 81803 68981Notes:

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.

Table 3. Representative weights, 50 Hz chillers (lb)

ModelComp Size



CVHE

190–320215

032S 032S14785 13426 — —

231 — — 16456 15097

190–320215

032S 032L15390 13881 — —

231 — — 17061 15552

190–320215

032L 032L16234 14531 — —

231 — — 17905 16202

190–320215

050S 050S19696 17195 — —

231 — — 21419 18918

190–320215

050S 050L20712 17952 — —

231 — — 22435 19675

190–320215

050L 050L21829 18682 — —

231 — — 23636 20502

300–500 360 050S 050S 21307 18806 — —


18 CVHE-SVX02M-EN

Table 3. Representative weights, 50 Hz chillers (lb) (continued)

ModelComp Size



379 — — 22608 20107

300–500360

050S 050L22323 19563 — —

379 — — 23624 20864

300–500360

050L 050L23524 20390 — —

379 — — 24825 21691

300–500360

050S 080S24923 21589 — —

379 — — 26224 22890

300–500360

080S 080S30740 26520 — —

379 — — 32041 27821

300–500360

080S 080L32328 27803 — —

379 — — 33629 29104

300–500360

080L 080L34349 29219 — —

379 — — 35650 30520

CVHG

480–565 489 050S 050S 22258 19747 22815 20304

480–565 489 050S 050L 23274 20504 23831 21061

480–565 489 050L 050L 24391 21244 24948 21801

480–565 489 050S 080S 25874 22538 26431 23095

480–565 489 050L 080L 28712 24647 29269 25204

480–565 489 080S 080L 33279 28754 33836 29311

670–780 621 080S 080S 32952 28732 33509 29289

670–780 621 080S 080L 34540 30015 35097 30572

670–780 621 080L 080L 36561 31431 37118 31988

670–780 621 080L 142L 45020 38203 45577 38760

670–780 621 142M 142L 49518 41562 50075 42119

670–780 621 142L 142L 50789 42475 51346 43032

920–1100 621 080L 142L 46086 39269 46643 39826

920–1100 892 142M 142L 50988 43032 51545 43589

920–1100 892 142L 142L 52259 43945 52816 44502

920–1100 892 142M 210L 56984 47879 57541 48436

920–1100 892 142L 210L 58205 48792 58762 49349

920–1100 892 142E 210L 59630 49778 60187 50335

920–1100 892 210L 210L 63821 53751 64378 54308Notes:

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.


CVHE-SVX02M-EN 19

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, or

placement. 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 4. Representative weights, 60 Hz chillers (kg)

ModelComp Size



CVHE

230–320233

032S 032S6726 6109 — —

289 — — 7488 6871

230–320 289 032S 032L 7000 6316 7762 7078

230–320 289 032L 032L 7383 6611 8145 7373

230–320 289 050S 050S 9088 7983 9850 8745

230–320 289 050S 050L 9526 8326 10288 9088

230–320 289 050L 050L 10139 8756 10901 9518

360–500 455 050S 050S 9397 8292 10159 9054

360–500 455 050S 050L 9835 8635 10597 9398

360–500 455 050L 050L 10448 9065 11210 9828

360–500 455 050S 080S 10523 9192 11285 9954

360–500 455 050L 080L 12153 10422 12915 11184

360–500 455 080S 080S 13542 11627 14304 12389

360–500 455 080S 080L 14262 12209 15024 12971

360–500 455 080L 080L 15179 12852 15941 13614

CVHF

350–570 588 050S 050S 9293 8157 10055 8919

350–570 588 050S 050L 9731 8501 10493 9263

350–570 588 050L 050L 10298 8875 11060 9637

350–570 588 050S 080S 10419 9057 11181 9819

350–570 588 050L 080L 12026 10232 12788 10994

350–570 588 080S 080S 14445 12246 14593 12571

350–570 588 080S 080L 14574 12391 15336 13153

350–570 588 080L 080L 15567 13088 16329 13850

350–910 957 080S 080S 14897 12875 16258 14236

350–910 957 080S 080L 15640 13457 17001 14818

350–910 957 080L 080L 16633 14154 17994 15515

350–910 957 080L 142L 20327 17084 21688 18444

350–910 957 142M 142L 21975 18389 23336 19749

350–910 957 142L 142L 22529 18803 23889 20164

1070–1300 1062 080L 142L 20734 17490 22094 18851

1070–1300 1062 142M 142L 22279 18693 23639 20053

1070–1300 1062 142L 142L 22832 19107 24193 20467

1070–1300 1062 142E 142L 23479 19554 24840 20915

1070–1300 1062 142M 210L 24976 20891 26336 22252

1070–1300 1062 142L 210L 25552 21305 26913 22666

1070–1300 1062 142E 210L 26199 21752 27559 23113

1070–1300 1062 210L 210L 28077 23555 29438 24915


20 CVHE-SVX02M-EN

Table 4. Representative weights, 60 Hz chillers (kg) (continued)

ModelComp Size



1070–1300 1062 250E 250L 34542 28726 35903 30087

1470 1340 210L 210L 29279 24757 30640 26118

1470–1720 1340 142L 210L 26755 22508 28115 23868

1470–1720 1340 250E 250L 35744 29928 37105 31289Notes:

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.

Table 5. Weights, 50 Hz chillers (kg)

ModelComp Size



CVHE

190–320215

032S 032S6706 6090 — —

231 — — 7464 6848

190–320215

032S 032L6981 6296 — —

231 — — 7739 7054

190–320215

032L 032L7364 6591 — —

231 — — 8122 7349

190–320215

050S 050S8934 7800 — —

231 — — 9715 8581

190–320215

050S 050L9395 8143 — —

231 — — 10176 8924

190–320215

050L 050L9901 8474 — —

231 — — 10721 9300

300–500360

050S 050S9665 8530 — —

379 — — 10255 9120

300–500360

050S 050L10126 8874 — —

379 — — 10716 9464

300–500360

050L 050L10670 9249 — —

379 — — 11260 9839

300–500360

050S 080S11305 9793 — —

379 — — 11895 10383

300–500360

080S 080S13943 12029 — —

379 — — 14534 12619

300–500360

080S 080L14664 12611 — —

379 — — 15254 13201

300–500360

080L 080L15580 13254 — —

379 — — 16171 13844

CVHG

480–565 489 050S 050S 10096 8957 10349 9210

480–565 489 050S 050L 10557 9300 10810 9553

480–565 489 050L 050L 11064 9636 11316 9889


CVHE-SVX02M-EN 21

Table 5. Weights, 50 Hz chillers (kg) (continued)

ModelComp Size



480–565 489 050S 080S 11736 10223 11989 10476

480–565 489 050L 080L 13024 11180 13276 11432

480–565 489 080S 080L 15095 13043 15348 13295

670–780 621 080S 080S 14947 13033 15199 13285

670–780 621 080S 080L 15667 13615 15920 13867

670–780 621 080L 080L 16584 14257 16836 14510

670–780 621 080L 142L 20421 17329 20673 17581

670–780 621 142M 142L 22461 18852 22714 19105

670–780 621 142L 142L 23038 19266 23290 19519

920–1100 621 080L 142L 20904 17812 21157 18065

920–1100 892 142M 142L 23128 19519 23380 19772

920–1100 892 142L 142L 23704 19933 23957 20186

920–1100 892 142M 210L 25848 21718 26100 21970

920–1100 892 142L 210L 26401 22132 26654 22384

920–1100 892 142E 210L 27048 22579 27300 22832

920–1100 892 210L 210L 28949 24381 29201 24634These representative chiller weight values are based on the following: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.


22 CVHE-SVX02M-EN

Installation: MechanicalOperating EnvironmentIImmppoorrttaanntt::

• The standard chiller is designed forindoor use only and as such has NEMAType 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 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,, aanndd CCVVHHSS CCeennTTrraaVVaacc cchhiilllleerrss,,uunniittss ooppeerraattiinngg aatt tthheessee tteemmppeerraattuurreess ccoouulldd aallssooffaattiigguuee tthhee uunniitt’’ss rruuppttuurree ddiisskk,, ccaauussiinngg iitt ttoo bbrreeaakkaatt aa rreedduucceedd rreeffrriiggeerraanntt pprreessssuurree ((<<1155 ppssiigg [[<<110033..44kkPPaaGG]]))..IIff aannyy ooff tthheessee aaddvveerrssee ooppeerraattiinngg ccoonnddiittiioonnss aarreepprreesseenntt,, ttaakkee nneecceessssaarryy aaccttiioonn ttoo iimmpprroovvee tthheeeeqquuiippmmeenntt rroooomm eennvviirroonnmmeenntt..

To ensure that electrical components operate properly,do NOT locate the chiller in an area exposed to dust,dirt, corrosive fumes, or excessive heat and humidity.The maximum ambient temperature for chilleroperation is 104°F (40°C).

Foundation RequirementsChiller mounting surface must be:

• rigid non-warping mounting pads or a concretefoundation, and

• able to support the chiller at its full operatingweight (including completed piping and fulloperating charges of refrigerant, oil, and water).

For proper unit operation, the chiller must be levelwithin 1/16 in. (1.6 mm) over its length and width whenset into place on the mounting surface. “Weights(lb),” p. 16 and “Weights (kg),” p. 19 showapproximate weights for various chiller sizes andoptions in pounds and kilograms, respectively.

NNoottee:: For specific weight information, refer to the unitsubmittal package.

IImmppoorrttaanntt:: Trane will not assume responsibility forequipment problems resulting from animproperly designed or constructedfoundation.

RiggingLifting is the recommended method for movingchillers. Suggested lifting arrangements for standardunits are described in “Standard Chiller Lift,” p. 22.

NNoottee:: The lifting beam used for CVHE, CVHF, andCVHG CenTraVac™ chillers must be at least 16 ft(4.9 m) long.

WWAARRNNIINNGGHHeeaavvyy OObbjjeecctt!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinnuunniitt ddrrooppppiinngg wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorrsseerriioouuss iinnjjuurryy,, aanndd eeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyyddaammaaggee..EEnnssuurree tthhaatt aallll tthhee lliiffttiinngg eeqquuiippmmeenntt uusseedd iisspprrooppeerrllyy rraatteedd ffoorr tthhee wweeiigghhtt ooff tthhee uunniitt bbeeiinngglliifftteedd.. EEaacchh ooff tthhee ccaabblleess ((cchhaaiinnss oorr sslliinnggss)),, hhooookkss,,aanndd sshhaacckklleess uusseedd ttoo lliifftt tthhee uunniitt mmuusstt bbee ccaappaabblleeooff ssuuppppoorrttiinngg tthhee eennttiirree wweeiigghhtt ooff tthhee uunniitt.. LLiiffttiinnggccaabblleess ((cchhaaiinnss oorr sslliinnggss)) mmaayy nnoott bbee ooff tthhee ssaammeelleennggtthh.. AAddjjuusstt aass nneecceessssaarryy ffoorr eevveenn uunniitt lliifftt..

WWAARRNNIINNGGIImmpprrooppeerr UUnniitt LLiifftt!!FFaaiilluurree ttoo pprrooppeerrllyy lliifftt uunniitt ccoouulldd rreessuulltt iinn uunniittddrrooppppiinngg aanndd ppoossssiibbllyy ccrruusshhiinngg ooppeerraattoorr//tteecchhnniicciiaann wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouussiinnjjuurryy,, aanndd eeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy ddaammaaggee..TTeesstt lliifftt uunniitt aapppprrooxxiimmaatteellyy 2244 iinncchheess ((6611 ccmm)) ttoovveerriiffyy pprrooppeerr cceenntteerr ooff ggrraavviittyy lliifftt ppooiinntt.. TToo aavvooiiddddrrooppppiinngg ooff uunniitt,, rreeppoossiittiioonn lliiffttiinngg ppooiinntt iiff uunniitt iissnnoott lleevveell..

NNOOTTIICCEEWWiirriinngg DDaammaaggee!!DDaammaaggee ttoo uunniitt wwiirriinngg ccoouulldd rreessuulltt iinn eeqquuiippmmeennttffaaiilluurree..CCaarree mmuusstt bbee ttaakkeenn dduurriinngg rriiggggiinngg,, aasssseemmbbllyy aannddddiissaasssseemmbbllyy ttoo aavvooiidd ddaammaaggiinngg uunniitt wwiirriinngg..

Standard Chiller Lift1. Insert clevis connections at the points indicated in

the following figure. A 2 in. (50.8 mm) diameterlifting hole is provided at each of these points.

2. Attach the lifting chains or cables.

3. Once 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.

CVHE-SVX02M-EN 23

4. Position isolator pads or spring isolators beneaththe chiller feet (refer to “Unit Isolation,” p. 24 forinstructions).

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

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 clevis connectionsand safety chain.

Figure 5. Typical rigging arrangements for CVHE, CVHF, and CVHG CenTraVac™™ chillers

IInnssttaallllaattiioonn:: MMeecchhaanniiccaall

24 CVHE-SVX02M-EN

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 Figure 5, p. 23; then push or pull theunit across a smooth surface. Should the chiller beon a shipping skid, it is not necessary to remove theskid from the chiller before moving it into place.

• If removal of the compressor or economizerassembly is necessary to move the chiller to the

operating location, contact Trane. Also refer to“Factory Warranty Information,” 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 Figure 6, p. 24) areprovided with each chiller unless spring isolatorsare specified on the sales order.

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 = 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.


CVHE-SVX02M-EN 25

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

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, bolt 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, insertcapscrews 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 bolts. An alternative methodof fastening the chiller to the isolators isto cement the neoprene pads.

5. Set the chiller on the isolators; refer to “Standard

Chiller Lift,” p. 22. 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 bolt onecomplete 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 bolt (refer toStep 7) will raise the chiller.

7. Turn the adjusting bolt 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 bolt 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).


26 CVHE-SVX02M-EN

Figure 8. Chiller foot and isolator orientation 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

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.


CVHE-SVX02M-EN 27

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.

• Optional: A heat-recovery condenser water circuit.

• Optional: An auxiliary condenser water circuit.

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. 30. 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..

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, for

a 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..

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.

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..

28 CVHE-SVX02M-EN

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. 28), differential pressure switches, or ifmefector® flow detection controllers and sensors (referto “Water Flow Detection Controller and Sensor,” p.28) 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. 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 the

height 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.

Figure 11. Installation of ifm efector®® flow detectioncontroller and sensor

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 pipe

IInnssttaallllaattiioonn:: WWaatteerr PPiippiinngg

CVHE-SVX02M-EN 29

upstream 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 ssoolliiddssttaattee ssttaarrtteerrss,, 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.

Figure 12. ifm efector®® flow sensing device terminalconnection

NNOOTTIICCEEPPrrooooff ooff FFllooww SSwwiittcchh!!FFaaiilluurree ttoo pprroovviiddee ffllooww sswwiittcchheess oorr jjuummppiinngg--oouutt ooffsswwiittcchheess ccoouulldd rreessuulltt iinn sseevveerree eeqquuiippmmeennttddaammaaggee..EEvvaappoorraattoorr aanndd ccoonnddeennsseerr wwaatteerr cciirrccuuiittss rreeqquuiirreepprrooooff ooff ffllooww sswwiittcchheess..•• FFaaiilluurree ttoo iinncclluuddee tthhee pprrooooff ooff ffllooww ddeevviicceess aanndd//oorr jjuummppiinngg oouutt tthheessee ddeevviicceess ccoouulldd ccaauussee tthhee uunniittttoo ssttoopp oonn aa sseeccoonnddaarryy lleevveell ooff pprrootteeccttiioonn..•• FFrreeqquueenntt ccyycclliinngg oonn tthheessee hhiigghheerr lleevveellddiiaaggnnoossttiicc ddeevviicceess ccoouulldd ccaauussee eexxcceessssiivvee tthheerrmmaallaanndd pprreessssuurree ccyycclliinngg ooff uunniitt ccoommppoonneennttss ((OO--rriinnggss,,ggaasskkeettss,, sseennssoorrss,, mmoottoorrss,, ccoonnttrroollss,, eettcc..)) aanndd//oorrffrreeeezzee ddaammaaggee,, rreessuullttiinngg iinn pprreemmaattuurree ffaaiilluurree oofftthhee cchhiilllleerr..

Evaporator and condenser proof of flow switches


30 CVHE-SVX02M-EN

(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

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. 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.

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 Table 6, p. 31, Table 7, p. 31, and Table 8,p. 32. 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 same


CVHE-SVX02M-EN 31

level 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 ifthis 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. For additional application information, refer toEngineering Bulletin: Condenser Water TemperatureControl - For CenTraVac Centrifugal Chiller Systemswith Tracer AdaptiView Controls (CTV-PRB006*-EN).

NNootteess::

• System refrigerant pressure differentialmust be maintained above 3 psid(20.7 kPaD) at all times. Failure to do socould result in operating problems.

• Whenever a CVHE, CVHF, or CVHGCenTraVac™ chiller is equipped with anauxiliary condenser, use a bypass valvesystem to avoid circulating water throughthe auxiliary shell during unit shut-down.

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 to

carry 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 6. Evaporator water piping connection sizes

EVSZ(a)Nominal Pipe Size

1-Pass 2-Pass 3-Pass

in. mm in. mm in. mm

032 8 219.1 6 168.3 5 141.3

050 10 273.0 8 219.1 6 168.3

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 7. Condenser water piping connection sizes

CDSZ(a)Nominal Pipe Size

2-Pass

in. mm

032 6 168.3

050 8 219.1

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


32 CVHE-SVX02M-EN

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. 89.

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 8. Water piping connection components

UnitModel

Unit ConnectionType

Customer Piping Connection

Victaulic®® Flanged

CVHE andCVHG

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

CustomerprovidedVictaulic®coupling

No adapterrequired

CVHE,CVHF, andCVHG

Victaulic® (allothers)

CustomerprovidedVictaulic®coupling

Trane providedVictaulic®-to-flange adapter

Figure 16. Customer piping connection types

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

NNeevveerr WWeelldd ttoo CCaasstt BBooxxeess!!WWeellddiinngg ttoo ccaasstt bbooxxeess wwiillll rreessuulltt iinn eeqquuiippmmeennttddaammaaggee..AAddaapptteerrss mmuusstt bbee uusseedd ttoo ccoonnvveerrtt ffllaannggeess..


CVHE-SVX02M-EN 33

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 bolted to one of the chiller end-supports.Adapter descriptions are given in Table 9, p. 34 andTable 10, p. 34. The flange adapters provide a direct,rigid connection of flanged components to thegrooved-pipe chiller waterbox connections.

Figure 17. Typical shipping location for flange

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 CVHE, CVHF, or CVHG CenTraVac™chillers with 300 psig (2068.4 kPaG) waterboxes thathave 14 in. (355.6 mm) and 16 in. (406.4 mm) pipingconnections.

All flange-to-flange assembly bolts must be providedby the installer. Bolt sizes and number required areincluded in Table 9, p. 34 and Table 10, p. 34. The fourdraw-bolts needed for the 14 in. (355.6 mm) and 16 in.(406.4 mm) Style 741 (150 psig [1034.2 kPaG]) adaptersare provided. The Style 741 (150 psig [1034.2 kPaG])flange adapter requires a smooth, hard surface for agood 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.

NNOOTTIICCEEPPiippiinngg CCoonnnneeccttiioonn LLeeaakkss!!FFaaiilluurree ttoo pprroovviiddee eeffffeeccttiivvee sseeaall ccoouulldd rreessuulltt iinneeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy ddaammaaggee..TToo pprroovviiddee eeffffeeccttiivvee sseeaall,, ggaasskkeett ccoonnttaacctt ssuurrffaacceessooff aaddaapptteerr mmuusstt bbee ffrreeee ooff ggoouuggeess,, uunndduullaattiioonnss oorrddeeffoorrmmiittiieess..

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

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 bolt through the mating holes ofthe Victaulic® flange to secure the flange firmly inthe groove.

6. Tighten fasteners alternately and equally untilhousing bolt pads are firmly together (metal-to-metal); refer to “Bolt-Tightening Sequence forWater Piping Connections,” p. 34. Do NOTexcessively tighten fasteners.

NNoottee:: Uneven tightening may cause gasket to pinch.


34 CVHE-SVX02M-EN

Figure 19. Typical Victaulic®® flange gasketconfiguration

Table 9. Installation data for 150 psig (1034.2 kPaG) flange adapters (Style 741)

Nominal Pipe Size Assembly BoltSize(a) Number of Assembly

Bolts RequiredBolt Pattern Diameter Weight

in. mm in. in. mm lb kg

4 114.3 5/8 x 3 8 7.5 191 7.7 3.5

5 141.3 3/4 x 3-1/2 8 8.5 216 9.3 4.2

6 168.3 3/4 x 3-1/2 8 9.5 241 10.3 4.7

8 219.1 3/4 x 3-1/2 8 11.75 298 16.6 7.5

10 273.0 7/8 x 1/4 12 14.25 362 24.2 11.0

12 323.9 7/8 x 1/4 12 17 432 46.8 21.2

14 355.6 1 x 4-1/2 12 18.75 476 75 34.0

16 406.4 1 x 4-1/2 16 21.25 540 90 40.8(a) Bolt size for conventional flange-to-flange connection. Longer bolts are required when flange washer must be used.

Table 10. Installation data for 300 psig (2068.4 kPaG) flange adapters (Style 743)

Nominal Pipe Size Assembly BoltSize(a) Number of Assembly

Bolts RequiredBolt Pattern Diameter Weight

in. mm in. in. mm lb kg

4 114.3 3/4 x 3-3/4 8 7.88 200 15.3 6.9

5 141.3 3/4 x 4 8 9.25 235 17.7 8.0

6 168.3 3/4 x 4-1/2 12 10.63 270 23.4 10.6

8 219.1 3/4 x 4-3/4 12 13 330 34.3 15.6

10 273.0 1 x 5-1/4 16 15.25 387 48.3 21.9

12 323.9 1-1/8 x 5-3/4 16 17.75 451 70.5 32.0(a) Bolt size for conventional flange-to-flange connection. Longer bolts are required when flange washer must be used.

Bolt-Tightening Sequence forWater Piping ConnectionsThis section describes a bolt-tightening sequence forflanges with flat gaskets or O-rings. Remember thatimproperly tightened flanges may leak.

NNoottee:: Before tightening any of the bolts, align theflanges. Flange bolt torque requirements areprovided in the following table.

Table 11. Flange bolt torque recommendations for O-ring and flat-gasket piping connections

Bolt SizeGasket Type

O-Ring Flat

in. mm ft·lb N·m ft·lb N·m

3/8 9.5 25 34 12–18 16–24

1/2 13 70 95 33–50 45–68

5/8 16 150 203 70–90 95–122

3/4 19 250 339 105–155 142–210

NNoottee:: Bolt size is determined by the diameter of bolt shank.


CVHE-SVX02M-EN 35

Flanges with 4, 8, or 12 BoltsTighten all bolts to a snug tightness, following thenumerical sequence for the appropriate bolt pattern asshown in the following figure. Repeat this sequence toapply the final torque to each bolt.

Figure 20. Flange bolt tightening sequence (4, 8, or 12bolts)

Flanges with 16, 20, or 24 BoltsTighten only the first half of the total number of bolts toa snug tightness, following the numerical sequence forthe appropriate bolt pattern as shown in the followingfigure. Next, sequentially tighten the remaining half ofthe bolts in numerical order.

Figure 21. Flange bolt tightening sequence (16, 20, or24 bolts)

Flanges with More than 24 BoltsSequentially tighten the first 12 bolts to a snugtightness, following the numerical sequence as shownin the following figure. Tighten the next12 consecutively numbered bolts in sequence to thefinal torque. Then, apply final torque to the first12 bolts and the bolts not yet tightened (i.e.,unnumbered bolts in the following figure). Start withbolt “1” and move progressively around the flange in aclockwise direction.

Figure 22. Flange bolt tightening sequence (morethan 24 bolts)


36 CVHE-SVX02M-EN

Evaporator Waterbox CoversEnsure that the waterbox head rests tightly against thetube sheet, and then snugly tighten the 26 bolts insequential order as shown in the following figure. Ifexcessive tube sheet crown prevents the head fromcontacting the tube sheet, tighten the bolts locatedwhere the greatest gaps occur. Be sure to use an equalnumber of bolt turns from side to side. Then, applyfinal torque to each bolt in sequential order.

Figure 23. Evaporator waterbox cover bolt tighteningsequence

Pressure Testing WatersidePiping

NNOOTTIICCEEEEqquuiippmmeenntt DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww tthheessee iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinneeqquuiippmmeenntt ddaammaaggee..DDoo nnoott oovveerr pprreessssuurriizzee tthhee ssyysstteemm oorr eexxcceeeeddddeessiiggnn pprreessssuurree.. AAllwwaayyss ppeerrffoorrmm aa hhyyddrroo pprreessssuurreetteesstt wwiitthh wwaatteerr pprreesseenntt iinn ppiippiinngg aanndd wwaatteerrbbooxxeess..

Waterside design pressure is either 150 psig(1034.2 kPaG) or 300 psig (2068.4 kPaG); refer to unitnameplate or to submittal documentation.


CVHE-SVX02M-EN 37

Vent PipingRefrigerant Vent LineGeneral RequirementsState and local codes, and ASHRAE Standard 15contain requirements for venting the relief device onthe chiller to the atmosphere outside of the building.These requirements include, but are not limited to,permitted materials, sizing, and proper termination.

NNoottee:: The following information is a general outline ofvent-line installation requirements based onASHRAE Standard 15. Most codes containsimilar requirements but may vary in somesignificant areas. The installer must check stateand local codes and follow the specificrequirements applicable to the location.

Purge DischargeTo comply with ASHRAE Standard 15, the dischargepiping from purge units that remove non-condensablegas from refrigerating systems must conform to theASHRAE Standard 15 requirements for relief piping. Tohelp meet this requirement, the purge discharge isfactory-piped to the relief device assembly.

Vent Line MaterialsAll materials in the relief device vent system must becompatible with the refrigerant in use. Commonly usedand accepted piping materials include steel and drain/waste/vent (DWV) copper. Consult local codes forrestrictions on materials. Consult with themanufacturers of any field-provided components ormaterials for acceptable material compatibility.

NNoottee:: PVC piping is compatible with the refrigerant butthe glue that joins the sections of plastic pipemay not be. When considering a vent systemconstructed of plastic piping such as PVC, ensurethat both the pipe material and the adhesivehave been tested for refrigerant compatibility. Inaddition, verify that the local codes permit PVCfor refrigerant vent lines; even though ASHRAEStandard 15 doesn’t prohibit its use, some localcodes do.

Testing conducted in Trane laboratories has qualifiedthe following materials for PVC pipe construction asbeing compatible with the refrigerant:

Primer/Cleaner:

• Hercules—PVC Primer #60-465

• RECTORSEAL® PVC Cleaner—Sam™ CL-3L

Adhesives:

• Hercules—Clear PVC, Medium Body/Medium Set,#60-020

• RECTORSEAL®—PVC Cement, Gene™ 404L

Flexible connection devices for vibration isolation mustalso be compatible with the vented refrigerant. Aflexible stainless-steel pump connector (such as thestainless-steel type MFP, style HNE, flexible pumpconnector from Vibration Mounting and Control, Inc.)or equivalent is recommended.

Vent Line SizingVent line size must conform to local codes andrequirements. In most cases, local codes are based onASHRAE Standard 15. ASHRAE Standard 15 providesspecific requirements for the discharge piping thatallows pressure-relief devices to safely vent refrigerantto the atmosphere if over-pressurization occurs. In part,the standard mandates that:

• The minimum pipe size of the vent line must equalthe size of the discharge connection on thepressure-relief device. A larger vent line size maybe necessary, depending on the length of the run.

• Two or more relief devices can be piped togetheronly if the vent line is sized to handle all devicesthat could relieve at the same time.

• When two or more relief devices share a commonvent line, the shared line must equal or exceed thesum of the outlet areas of all upstream reliefdevices, depending on the resulting back pressure.

ASHRAE Standard 15 provides guidance fordetermining the maximum vent line length. It alsoprovides the equation (shown in Figure 27, p. 42) anddata necessary to properly size the vent line at theoutlet of a pressure-relief device or fusible plug.

The equation accounts for the relationship betweenpipe diameter, equivalent pipe length, and the pressuredifference between the vent line inlet and outlet to helpensure that the vent line system provides sufficientflow capacity.

Table 12, p. 41 provides additional information basedon ASHRAE Standard 15, including:

• Capacities of various vent line sizes and lengths.However, this data applies only to conventionalpressure-relief valves and NOT to balanced reliefvalves, rupture members (as used on Trane®centrifugal chillers), fusible plugs, or pilot-operatedvalves.

• A simplified method to determine the appropriatevent-line size, with Figure 27, p. 42. Enter the figurewith the total CC value, read across to a pipe curveand down to find the maximum allowable lengthfor that size pipe.

38 CVHE-SVX02M-EN

NNoottee:: To determine the total CC value for a specificunit, add the appropriate CC values for theevaporator, standard condenser, andeconomizer. If the unit is equipped with anyoptions (e.g., heat recovery, free cooling, oran auxiliary condenser), add the applicable CCvalue(s) for those options to the total as well.

NNoottee:: Table 12, p. 41 and Figure 27, p. 42 areapplicable only for non-manifolded vent-lineruns connected to a 15 psig (103.4 kPaG) rupturedisk relief device. The pipe length provided bythe table is in “equivalent feet.” The vent-linelength in equivalent feet is the sum of the linearpipe length plus the equivalent length of thefittings (e.g., elbows).

Vent Line InstallationIImmppoorrttaanntt:: Before constructing the rupture disk vent

line, consult local codes for applicableguidelines and constraints.

All CenTraVac™ centrifugal chillers are equipped withrupture disks. If refrigerant pressure within theevaporator exceeds 15 psig (103.4 kPaG), the rupturedisk breaks and shell pressure is relieved as refrigerantescapes from the chiller.

A cross-section of the rupture disk assembly appears inFigure 24, p. 39 along with an illustration indicating thelocation of the rupture disk on the suction elbow.

IImmppoorrttaanntt:: If a RuptureGuard™ is to be installed,remove and discard the factory-installedrupture disk; for more information, refer toInstallation, Operation, and Maintenance:RuptureGuard Pressure Relief SystemOption (CTV-SVX06*-EN).

Several general recommendations for rupture disk ventline installation are outlined as follows.

NNoottee:: If the rupture disk was removed for service orvent-line piping installation, the rupture diskmust be reinstalled (as shown in Figure 24, p. 39).Refer to the following procedure and contactCenTraVac™ Chiller Technical Service whenreinstalling the rupture disk.

• Verify that the vacuum support side of the rupturedisk is positioned as shown in the cross-sectionview that appears in Figure 24, p. 39.

– Install the two bottom bolts though the pipeflanges.

– Install the rupture disk with a gasket on eachside between the pipe flanges. Orient the diskwith the reference arrow or vacuum support barfacing the chiller side as shown in Figure 24, p.39.

– Install the two top bolts.

– Center the disk and gaskets to the flange bore.

– Hand-tighten all bolts assuring equal pressure.

– Use a torque wrench set to 240 in·lb (27.1 N·m)with a 9/16-in. socket.

– Tighten bolts in a star pattern, one half turneach, to maintain even pressure on the disk.

– Final torque on all bolts should be 240 in·lb(27.1 N·m).

• When attaching the vent line to the chiller, do NOTapply threading torque to the outside pipe of therupture disk assembly.

NNOOTTIICCEERRuuppttuurree DDiisskk DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonn ccoouulldd rreessuulltt iinnddaammaaggee ttoo tthhee rruuppttuurree ddiisskk aasssseemmbbllyy..DDoo nnoott aappppllyy tthhrreeaaddiinngg ttoorrqquuee ttoo tthhee oouuttssiiddee ppiippee..

• Provide support as needed for the vent line. DoNOT use the rupture disk assembly to support thevent-line piping.

• Use a flexible connection between the vent line andthe rupture disk assembly to avoid placing stress onthe rupture disk. (Stress can alter rupture pressureand cause the disk to break prematurely.) Theflexible connector used to isolate the rupture diskfrom excessive vent line vibration must becompatible with the refrigerant in use. Use aflexible, steel connector (such as the stainless-steeltype MFP, style HNE, flexible pump connector fromVibration Mounting and Control, Inc.), orequivalent. Refer to Figure 25, p. 40 for arecommended relief piping arrangement.

• An individual vent line is normally installed for eachrelief device. It is permissible to manifold therupture disks of several machines into a commonvent line provided that the appropriate ASHRAEStandards and local code requirements formanifolded relief devices are followed.

NNoottee:: Figure 25, p. 40 does NOT apply formanifolded vent lines.

WWAARRNNIINNGGPPrreessssuurree--RReelliieeff DDeevviiccee DDiisscchhaarrggeeHHaazzaarrdd!!AAnn iimmpprrooppeerr vveenntt--lliinnee tteerrmmiinnaattiioonn ccoouulldd rreessuulltt iinnddeeaatthh oorr sseerriioouuss iinnjjuurryy oorr eeqquuiippmmeenntt ddaammaaggee..WWhheenn aa pprreessssuurree--rreelliieeff ddeevviiccee ooppeerraatteess,, iitt ccoouullddddiisscchhaarrggee aa llaarrggee aammoouunntt ooff fflluuiidd aanndd//oorr vvaappoorr..UUnniittss MMUUSSTT bbee eeqquuiippppeedd wwiitthh aa vveenntt--lliinneetteerrmmiinnaattiioonn tthhaatt ddiisscchhaarrggeess oouuttddoooorrss iinn aann aarreeaatthhaatt wwiillll nnoott sspprraayy rreeffrriiggeerraanntt oonn aannyyoonnee..

VVeenntt PPiippiinngg

CVHE-SVX02M-EN 39

NNOOTTIICCEEPPrrooppeerr RReeffrriiggeerraanntt VVeenntt LLiinneeTTeerrmmiinnaattiioonn!!FFaaiilluurree ttoo pprrooppeerrllyy tteerrmmiinnaattee aa rreeffrriiggeerraanntt vveennttlliinnee ccoouulldd rreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee..IImmpprrooppeerrllyy tteerrmmiinnaattiinngg aa rreeffrriiggeerraanntt vveenntt lliinneeccoouulldd aallllooww rraaiinn ttoo eenntteerr tthhee lliinnee.. AAccccuummuullaatteeddrraaiinnwwaatteerr ccoouulldd ccaauussee tthhee rreelliieeff ddeevviiccee ttoommaallffuunnccttiioonn;; oorr,, iinn tthhee ccaassee ooff aa rruuppttuurree ddiisskk,, tthheerraaiinnwwaatteerr pprreessssuurree ccoouulldd ccaauussee tthhee ddiisskk ttoo rruuppttuurree,,aalllloowwiinngg wwaatteerr ttoo eenntteerr tthhee cchhiilllleerr..

• Route the vent-line piping so that it dischargesoutdoors in an area that will not spray refrigeranton anyone. Position the vent-line discharge at least15 ft (4.6 m) above grade level and at least 20 ft(6.1 m) from any building opening. Provide a vent-line termination that cannot be blocked by debris oraccumulate rainwater.

• Provide a drip leg on the vent line (refer to Figure25, p. 40). Provide a standard 1/4-in. FL x 1/4-in.NPT, capped refrigerant service valve to facilitateliquid removal.

NNOOTTIICCEEEEqquuiippmmeenntt DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinneeqquuiippmmeenntt ddaammaaggee..AAllll vveenntt lliinneess mmuusstt bbee eeqquuiippppeedd wwiitthh aa ddrriipp lleegg ooffssuuffffiicciieenntt vvoolluummee ttoo hhoolldd tthhee eexxppeecctteeddaaccccuummuullaattiioonn ooff wwaatteerr aanndd//oorr rreeffrriiggeerraanntt.. TThhee ddrriipplleegg mmuusstt bbee ddrraaiinneedd ppeerriiooddiiccaallllyy ttoo aassssuurree tthhaatt iittddooeess nnoott oovveerrffllooww aanndd aallllooww fflluuiidd ttoo ffllooww iinnttoo tthheehhoorriizzoonnttaall ppoorrttiioonn ooff tthhee vveenntt lliinnee.. TTrraannee aassssuummeessnnoo rreessppoonnssiibbiilliittyy ffoorr eeqquuiippmmeenntt ddaammaaggee ccaauusseedd bbyyiinnssuuffffiicciieenntt ddrraaiinnaaggee ooff ddrriipp lleegg..

• Consult local regulations and codes for anyadditional relief line requirements and refer toappropriate refrigerant handling guidelines. For R-123 chillers, refer to Installation, Operation, andMaintenance: R-123 Low-Pressure RefrigerantHandling Guidelines Conservation and SafeHandling of R-123 Refrigerant in Trane Chillers forService Technicians (CTV-SVX05*-EN). For R-514Achillers, refer to Installation, Operation, andMaintenance: R-514A Low-Pressure RefrigerantHandling Guidelines Conservation and SafeHandling of R-514A Refrigerant in Trane Chillers forService Technicians (CTV-SVX008*-EN).

Figure 24. Rupture disk location and cross section ofrupture disk

NNoottee:: Pipe connection is 3 in. (76.2 mm) NPT, except250E evaporator/250L condenser units with heatrecovery which have a 4 in. (101.6 mm) NPT pipeconnection.


40 CVHE-SVX02M-EN

Figure 25. Arrangement for rupture disk relief piping

IImmppoorrttaanntt:: On the purge discharge vent line, the purgeexhaust connection point MUST be lowerthan the purge height. Do NOT create a U-trap; extend to drip leg if necessary toavoid a trap.

NNootteess::

• If a RuptureGuard™ is to be installed,remove and discard the factory-installedrupture disk; for more information, refer toInstallation, Operation, and Maintenance:RuptureGuard Pressure Relief SystemOption (CTV-SVX06*-EN).

• The rated flow capacity of theRuptureGuard™ disk/valve assembly isbased on having straight pipe extendingpast the spring mechanism downstream ofthe valve. Be sure there are no crosses (aderate on the rated flow capacity for thisconfiguration is published in EngineeringBulletin: RuptureGuard Selection Guide [E/CTV-EB-10]), elbows, tees or any otherobstructions within the first 9 in. (228.6 mm)of valve discharge. Refer to ASHRAEStandard 15 for additional requirements onpiping rupture disk and relief valve ventlines.

Figure 26. RuptureGuard™™ external vent line anddrip leg (not provided)

NNootteess::

• Use Loctite® 242 or Loctite® 277 on allthreaded joints on chillers charged withrefrigerant; use of other pipe thread sealantsis NOT recommended. Ensure all threadedpipe joints are properly cleaned andprepared before assembly. An alternative tothe use of Loctite® is to thread and weld theinlet adapter to the pipe. Care must be takento ensure that the flange mating surfaceremains flat. Do NOT weld on the InletAdapter flange while connected to theRuptureGuard™.

• The drip leg is required and must be drainedperiodically for proper chiller purgeoperation.

IImmppoorrttaanntt:: If a RuptureGuard™ is to be installed, itMUST be installed properly. Failure toproperly install RuptureGuard™ will likelyresult in a start-up delays and requiredrework and expenses that result from afailure to properly install RuptureGuard™will NOT be paid by Trane.


CVHE-SVX02M-EN 41

Vent Line Sizing ReferenceTable 12. “C” values used to determine rupture disk

vent line sizes; for use with the followingfigure

Evap.Size(EVSZ)

Cond.Size(CDSZ)

“C” Values for Unit ComponentsTotal“C”Value

ShortH.R.Cond.

Long H.R.

Cond.

Aux.Cond.

FreeCoolingEcon.

032S 032S 50.00

18.87 25.19 15.30 3.66032S 032L 61.32

032L 032L 65.09

050S 050S 64.20

23.55 31.45 15.30 5.50050S 050L 72.10

050L 050L 83.17

050S 080S 69.71N/A N/A N/A N/A

050L 080L 90.52

080S 080S 86.48

29.06 38.80 15.30 5.38080S 080L 96.22

080L 080L 111.50

080L 142L 117.53 N/A N/A N/A N/A

142M 142L 127.49

51.01 56.80 15.30 7.13142L 142L 134.89

142E 142L 143.11

210L 210L 149.91

Table 12. “C” values used to determine rupture diskvent line sizes; for use with the following figure(continued)

Evap.Size(EVSZ)

Cond.Size(CDSZ)

“C” Values for Unit ComponentsTotal“C”Value

ShortH.R.Cond.

Long H.R.

Cond.

Aux.Cond.

FreeCoolingEcon.

250E 250L 175.74 N/A 62.12 15.30 N/A

210D 210D 112.93

N/A N/A

15.30 7.13250D 250D 122.62

250M 250M 146.3615.30 N/A

250X 250X 164.74Notes:

1. Rupture disk diameter is 3 in. (76.2 mm), with the exception of250E evaporator/250L condenser units with heat recovery whichhave a rupture disk diameter of 4 in. (101.6 mm).

2. To determine the total “C” value for a specific unit, add theappropriate “C” values for the evaporator, standard condenser, andeconomizer. If the unit is equipped with any options (e.g., heatrecovery, free cooling, or an auxiliary condenser), add theapplicable “C” values to this total. With this new sum, refer to thefollowing figure to determine the vent-line pipe diameter.

3. If piping multiple rupture disks to a common vent line, firstdetermine the total “C” value for each rupture disk, then add all “C”values together and apply the result to the following figure.

4. RuptureGuard™ size based on “C” value:3-in. (76.2 mm) valve: “C” value 0 to 104.204-in. (101.6 mm) valve: C value 104.21 to 223.9RuptureGuard™ is not available for 250E evaporator/250Lcondenser units with heat recovery.


42 CVHE-SVX02M-EN

Figure 27. Rupture disk vent pipe sizing; for use with the preceding table

NNoottee:: The preceding figure, provided as a reference, is based on ASHRAE Standard 15. Vent line size is typicallydictated by state or local code which may be different from ASHRAE Standard 15 requirements.


CVHE-SVX02M-EN 43

For CenTraVac™ chillers using a rupture disk relief:

• L = equivalent length of discharge piping, ft (m)

• Cr = rated capacity as stamped on the relief devicein lb/min (kg/s), or SCFM multiplied by 0.0764 lb/min (convert multiplier in lb/min to kg/s for SI)

Cr = CC value from the preceding table (convert CCin lb/min to kg/s for SI)

• f = Moody friction factor in fully turbulent flow

• d = inside diameter of pipe or tube, in. (mm)

• ln = natural logarithm

• P2 = absolute pressure at outlet of discharge piping,psi (kPa)

• P0 = allowed back pressure (absolute) at the outletof pressure relief device, psi (kPa)

P0 = (0.50 P) + atmospheric pressure

NNoottee:: For rupture disks on CenTraVac™ chillers, Pis 15 lb (6.8 kg). Atmospheric pressure is atthe elevation of the installation above sealevel; a default value is the atmosphericpressure at sea level, 14.7 psi (101.34 kPa).


44 CVHE-SVX02M-EN

InsulationUnit Insulation RequirementsFactory-installed insulation is available as an option forall units. Factory installation does NOT includeinsulation of the chiller feet; if required, insulation forchiller feet is provided by others. In applications wherethe chiller is not factory-insulated, install insulationover the areas outlined and highlighted with dashedlines as shown in Figure 28, p. 45.

Insulate all 1/4-in. (6.35-mm) eductor lines, one fromthe suction cover and one from the evaporator, toprevent sweating.

The quantities of insulation required based on unit sizeand insulation thickness are listed in the followingtable. Insulation thickness is determined at normaldesign conditions which are:

• Standard comfort-cooling leaving chilled watertemperature

• 85°F (29.4°C) dry bulb ambient temperature

• 75 percent relative humidity

Operation outside of normal design conditions asdefined in this section may require additionalinsulation; contact Trane for further review.

NNoottee:: If the unit is not factory-insulated, installinsulation around the evaporator bulbwells andensure that the bulbwells and connections forthe waterbox drains and vents are still accessibleafter insulation is applied. The sensor modules(Low Level Intelligent Devices [LLIDs]) andinterconnecting four-wire cable inter-processorcommunication (IPC) bus must be raised upabove the field-installed insulation. Secure theIPC bus to the insulation top/outer surface afterinsulation is completed.

IImmppoorrttaanntt:: Do NOT insulate the motor housing, unitwiring, or sensor modules.

NNOOTTIICCEEEEqquuiippmmeenntt DDaammaaggee!!FFaaiilluurree ttoo rreemmoovvee tthhee ssttrraaiinn rreelliieeff wwiitthh tthhee sseennssoorrccoouulldd rreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee..DDoo NNOOTT aatttteemmpptt ttoo ppuullll sseennssoorr bbuullbb tthhrroouugghh tthheessttrraaiinn rreelliieeff;; aallwwaayyss rreemmoovvee tthhee eennttiirree ssttrraaiinn rreelliieeffwwiitthh tthhee sseennssoorr..

Table 13. Evaporator insulation requirements

EVSZ(a)Standard Unit Free Cooling

3/4 in. (19.05mm)(a)Insulation(Square

Feet)

3/8 in. (9.525mm)Insulation(b) (Square

Feet)

3/4-in. (19.05mm)Insulation(a)(Square Feet)

3/8 in. (9.525mm)Insulation(b) (Square

Feet)032 Short 337 52 347 74

032 Long 365 52 377 74

050 Short 385 63 398 72

050 Long 420 63 436 72

080 Short 505 84 515 97

080 Long 553 84 566 97

142 Medium 555 98 555 133

142 Long 578 98 578 133

142 Extended 603 104 629 133

210 Long 700 98 710 133

250 Extended 770 97 780 133

NNoottee:: Chillers equipped with refrigerant pumps are NOT insulated on the motor or refrigerant drain lines.

(a) 3/4-in. (19.05-mm) sheet insulation is installed on the evaporator, evaporator waterboxes, suction elbow, and suction cover.(b) 3/8-in. (9.525-mm) sheet insulation is installed on all economizers. All liquid lines and other pipes require the use of 1/2-in. (12.7-mm) pipe insulation or

3/8-in. (9.525-mm) sheet insulation. Copper oil eductor tube lines require pipe insulation.

Insulation ThicknessRequirementsFactory Applied InsulationAll low-temperature surfaces are covered with 3/4 in.(19.05 mm) Armaflex® II or equal (thermal conductivity= 0.28 Btu/h-ft2 [1.59 W/m2-K]), including the

evaporator, waterboxes, and suction elbow. Theeconomizer and motor cooling lines are insulated with3/8 in. (9.525 mm) and 1/2 in. (12.7 mm) insulation,respectively.

The insulation is Armaflex® or equivalent closed cellelastomeric insulation to prevent the formation ofcondensation up to a dew point rating of 74°F (23.3°C),K = 0.25. Chillers in high humidity areas or ice storage,

CVHE-SVX02M-EN 45

low leaving water temperature (less than 36°F [2.2°C]chilled water temperature/glycol) units, may requiredouble thickness to prevent formation of condensation.

NNOOTTIICCEEIInnssuullaattiioonn DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww tthheessee iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinniinnssuullaattiioonn ddaammaaggee..TToo pprreevveenntt ddaammaaggee ttoo ffaaccttoorryy iinnssttaalllleedd iinnssuullaattiioonn::•• DDoo nnoott aallllooww tthhee iinnssuullaattiioonn ttoo bbee eexxppoosseedd ttooeexxcceessssiivvee ssuunnlliigghhtt.. SSttoorree iinnddoooorrss oorr ccoovveerr wwiitthhccaannvvaass ttoo pprreevveenntt eexxppoossuurree..•• DDoo nnoott uussee tthhiinnnneerrss aanndd ssoollvveennttss oorr ootthheerr ttyyppeessooff ppaaiinntt.. UUssee oonnllyy wwaatteerr bbaassee llaatteexx..

Figure 28. Recommended area for unit insulation

NNootteess::

• Bulbwells, drain, and vent connections must be accessible after insulating.

• All units with evaporator marine waterboxes wrap waterbox shell insulation with strapping and securestrapping with seal.

• Evaporators with ASME nameplates must have insulation cut out around the nameplate. Do NOT glueinsulation to the nameplate.

• Apply 2-in. (50.8-mm) wide black tape on overlap joints. Where possible apply 3-in. (76.2-mm) wide strip of0.38-in. (9.7-mm) thick insulation over butt joint seams.

• Insulate all economizer supports.

IInnssuullaattiioonn

46 CVHE-SVX02M-EN

Installation: ControlsThis section covers information pertaining to theUC800 controller hardware. For information about theTracer® AdaptiView™ display, which is used tointerface with the internal chiller data and functionsprovided by the UC800, refer to Tracer AdaptiViewDisplay for Water-Cooled CenTraVac ChillersOperations Guide (CTV-SVU01*-EN).

UC800 SpecificationsPower Supply

NNOOTTIICCEECCuussttoommeerr WWiirriinngg!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinneeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy ddaammaaggee..OOnnllyy uussee fflleexxiibbllee ccoonndduuiitt oorr mmeettaall--ccllaadd ccaabbllee wwhheennwwiirriinngg tthhee ccoonnttrrooll ppaanneell aanndd mmoottoorr tteerrmmiinnaall bbooxx ttooeennssuurree aa vviibbrraattiioonn--ffrreeee iinnssttaallllaattiioonn..

The UC800 (1A22) receives 24 Vac (210 mA) powerfrom the 1A2 power supply located in the chiller controlpanel.

Wiring and Port DescriptionsThe following figure illustrates the UC800 controllerports, LEDs, rotary switches, and wiring terminals. Thenumbered list following the figure corresponds to thenumbered callouts in the illustration.

CVHE-SVX02M-EN 47

Figure 29. UC800 wiring locations and connectionports

1. Rotary Switches for setting BACnet® MAC addressor MODBUS® ID.

2. LINK for BACnet® MS/TP, or MODBUS® Slave (twoterminals, ±). Field wired if used.

3. LINK for BACnet® MS/TP, or MODBUS® Slave (twoterminals, ±). Field wired if used.

4. Machine bus for existing machine LLIDs (IPC3Tracer bus 19.200 baud). IPC3 Bus: used for Comm4 using TCI or LonTalk® using LCI-C.

5. Power (210 mA at 24 Vdc) and ground terminations(same bus as Item 4). Factory wired.

6. Not used.

7. Marquee LED power and UC800 Status indicator(Table 14, p. 48).

8. Status LEDs for the BAS link, MBus link, and IMClink.

9. USB device Type B connection for the service tool(Tracer® TU).

10. The Ethernet connection can only be used with theTracer® AdaptiView™ display.

11. USB Host (not used).

Communication InterfacesThere are four connections on the UC800 that supportthe communication interfaces listed. Refer to Figure29, p. 47 for the locations of each of these ports.

• BACnet® MS/TP

• MODBUS® Slave

• LonTalk® using LCI-C (from the IPC3 bus)

• Comm 4 using TCI (from the IPC3 bus)

Rotary SwitchesThere are three rotary switches on the front of theUC800 controller. Use these switches to define a three-digit address when the UC800 is installed in a BACnet®or MODBUS® system (e.g., 107, 127, etc.).

NNoottee:: Valid addresses are 001 to 127 for BACnet® and001 to 247 for MODBUS®.

LED Description and OperationThere are ten LEDs on the front of the UC800. Thefollowing figure shows the locations of each LED andthe following table describes their behavior in specificinstances.

IInnssttaallllaattiioonn:: CCoonnttrroollss

48 CVHE-SVX02M-EN

Figure 30. LED locations Table 14. LED behavior

LED UC800 Status

Marquee LED

Powered. If the Marquee LED is green solid, theUC800 is powered and no problems exist.Low power or malfunction. If the Marquee LEDis red solid, the UC800 is powered but there areproblems present.Alarm. The Marquee LED blinks red when an alarmexists.

LINK, MBUS,IMC

The TX LED blinks green at the data transfer ratewhen the UC800 transfers data to other devices onthe link.The RX LED blinks yellow at the data transfer ratewhen the UC800 receives data from other deviceson the link.

Ethernet Link

The LINK LED is solid green if the Ethernet link isconnected and communicating.The ACT LED blinks yellow at the data transfer ratewhen data flow is active on the link.

ServiceThe Service LED is solid green when pressed. Forqualified service technicians only. Do NOTuse.

IImmppoorrttaanntt:: Maintain at least 6 in. (16 cm) between low-voltage (less than 30V) and high voltagecircuits. Failure to do so could result inelectrical noise that could distort thesignals carried by the low-voltage wiring,including inter-processor communication(IPC).


CVHE-SVX02M-EN 49

Figure 31. Standard control panel: Tracer®® AdaptiView™™ main unit assembly (showing low voltage and highervoltage areas for proper routing of field wiring)


50 CVHE-SVX02M-EN

Figure 32. Optional control panel: Tracer®® AdaptiView™™ main unit assembly (showing low voltage and highervoltage areas for proper routing of field wiring)


CVHE-SVX02M-EN 51

Installing the Tracer AdaptiViewDisplayDuring shipment, the Tracer® AdaptiView™ display isboxed, shrink-wrapped, and located behind the controlpanel. The display must be installed at the site.

IImmppoorrttaanntt:: For best results, Trane, or an agent ofTrane, must install the Tracer®AdaptiView™ display and display arm.

1. Unwrap the control panel and display arm. Locatethe box containing the Tracer® AdaptiView™display behind the control panel (labeled A inFigure 33, p. 51).

2. After the box containing the display has beenremoved, remove the shipping bracket from theback of the control panel (labeled B in Figure 33, p.51).

3. Remove the display from the box.

NNoottee:: Screws are M4 (metric size 4), 6 to 8 mm long,and are shipped with the display.

4. Plug the power cable (labeled C in Figure 34, p. 51)and the Ethernet cable (labeled D in Figure 34, p.51) into the bottom of the display.

NNoottee:: Both cables are already present and extendfrom the end of the display arm.

5. Adjust the Tracer® AdaptiView™ display supportarm so the base plate that attaches to the display ishorizontal.

CCAAUUTTIIOONNTTeennssiioonn iinn DDiissppllaayy SSuuppppoorrtt AArrmm!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouullddrreessuulltt iinn uunneexxppeecctteedd mmoovveemmeenntt ooff tthhee sspprriinngg--llooaaddeedd ssuuppppoorrtt aarrmm wwhhiicchh ccoouulldd rreessuulltt iinn mmiinnoorrttoo mmooddeerraattee iinnjjuurryy..EEnnssuurree tthhaatt tthhee ssuuppppoorrtt aarrmm iiss iinn tthhee ffuulllluupprriigghhtt ppoossiittiioonn wwhheenn rreemmoovviinngg tthhee TTrraacceerrAAddaappttiiVViieeww ddiissppllaayy ffrroomm tthhee ssuuppppoorrtt aarrmm..

NNoottee:: Review “Adjusting the Tracer AdaptiViewDisplay Arm,” p. 52 before attaching thedisplay as some adjustments may berequired prior to attaching the display to thesupport arm base.

6. Position the Tracer® AdaptiView™ display—withthe LCD screen facing up—on top of the displaysupport arm base plate.

NNoottee:: Ensure the Trane logo is positioned so that itwill be at the top when the display is attachedto the display support arm.

IImmppoorrttaanntt:: Use care when positioning the Tracer®AdaptiView™ display on top of the supportarm base plate and do NOT drop thedisplay.

7. Align the four holes in the display with the bolt

holes in the display support arm base plate.

8. Attach the Tracer® AdaptiView™ display to thedisplay support arm base plate (labeled E in Figure35, p. 52) using the M4 (metric size 4) screwsreferenced in “Step 3,” p. 51.

Figure 33. Tracer®® AdaptiView™™ shipping location

Figure 34. Power cable and Ethernet cableconnections


52 CVHE-SVX02M-EN

Figure 35. Display attachments to the support armbase plate

Adjusting the Tracer AdaptiViewDisplay ArmThe Tracer® AdaptiView™ display arm may becometoo loose or too tight and may need adjustment. Thereare three joints on the display arm that allow thedisplay to be positioned at a variety of heights andangles (refer to items labeled 11, 22, and 33 in thefollowing figure).

Figure 36. Joint locations on the display arm

To adjust the tension on the display arm:

• At each joint in the display arm, there is either a hexbolt (11 and 22) or hex screw (33). Turn the hex bolt orscrew in the proper direction to increase ordecrease tension.

NNoottee:: Each hex bolt or screw is labeled withlloooosseenn/ttiigghhtteenn or ++/-- indicators.

• Joint 33 has a 6 mm hex screw controlling thetension on a gas spring, which allows the Tracer®AdaptiView™ display to tilt up and down.

• Joints 11 and 22 are covered by a plastic cap. Removethe plastic cap to access the hex bolt. Adjust using a13 mm wrench as necessary.

• To adjust the swivel rotation tension of the Tracer®AdaptiView™ display, adjust the hex bolt located inthe support arm base plate, as described in the finalstep in “Installing the Tracer AdaptiViewDisplay,” p. 51. This adjustment must be done priorto attaching the display to the support arm base.Use a 14 mm wrench to adjust the tension.

• To adjust the left/right swivel of the entire displayarm, use a 13 mm wrench to adjust the bolt labeled44 in the preceding figure.


CVHE-SVX02M-EN 53

Electrical RequirementsInstallation Requirements


Unit-mounted starters are available as an option onmost units. While this option eliminates most field-installed wiring requirements, the electrical contractormust still complete the electrical connection for thefollowing:

• power supply wiring to the starter,

• other unit control options present, and

• any field-supplied control devices.

As you review this manual along with the wiringinstructions presented in this section, keep in mindthat:

• All field-installed wiring must conform to NationalElectric Code (NEC) guidelines, and any applicablelocal, state, and national codes. Be sure to satisfyproper equipment grounding requirements perNEC.

• Compressor motor and unit electrical data(including motor kW, voltage utilization range,rated load amps, and locked rotor amps) is listed onthe chiller nameplate.

• All field-installed wiring must be checked for properterminations, and for possible shorts or grounds.

NNoottee:: Always refer to the actual wiring diagramsthat shipped with the chiller or the unitsubmittal for specific as-built electricalschematic and connection information.

NNOOTTIICCEEAAddaappttiivvee FFrreeqquueennccyy DDrriivvee ((AAFFDD))//SSttaarrtteerr CCoommppoonneenntt DDaammaaggee!!FFaaiilluurree ttoo rreemmoovvee ddeebbrriiss ffrroomm iinnssiiddee tthhee AAFFDD//ssttaarrtteerr ppaanneell ccoouulldd rreessuulltt iinn aann eelleeccttrriiccaall sshhoorrtt aannddccoouulldd ccaauussee sseerriioouuss AAFFDD//ssttaarrtteerr ccoommppoonneennttddaammaaggee..

Do NOT modify or cut enclosure to provide electricalaccess. Removable panels have been provided, andany modification should be done away from theenclosure. If the starter enclosure must be cut to

provide electrical access, exercise care to preventdebris from falling inside the enclosure. Refer toinstallation information shipped with the starter orsubmittal drawings.

Electrical RequirementsBefore wiring begins, observe the following electricalrequirements:

• Follow all lockout/tagout procedures prior toperforming installation and/or service on the unit.

• Always wear appropriate personal protectiveequipment.

• Wait the required time to allow the capacitor(s) todischarge; this could be up to 30 minutes.

• Verify that all capacitors are discharged prior toservice using a properly rated volt meter.

• Use appropriate capacitor discharge tool whennecessary.

• Comply with the safety practices recommended inPROD-SVB06*-EN.

WWAARRNNIINNGGHHaazzaarrddoouuss VVoollttaaggee ww//CCaappaacciittoorrss!!FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr aanndd ddiisscchhaarrggeeccaappaacciittoorrss bbeeffoorree sseerrvviicciinngg ccoouulldd rreessuulltt iinn ddeeaatthh oorrsseerriioouuss iinnjjuurryy..DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmootteeddiissccoonnnneeccttss aanndd ddiisscchhaarrggee aallll mmoottoorr ssttaarrtt//rruunnccaappaacciittoorrss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerrlloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerrccaannnnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. FFoorr vvaarriiaabblleeffrreeqquueennccyy ddrriivveess oorr ootthheerr eenneerrggyy ssttoorriinnggccoommppoonneennttss pprroovviiddeedd bbyy TTrraannee oorr ootthheerrss,, rreeffeerr ttootthhee aapppprroopprriiaattee mmaannuuffaaccttuurreerr’’ss lliitteerraattuurree ffoorraalllloowwaabbllee wwaaiittiinngg ppeerriiooddss ffoorr ddiisscchhaarrggee ooffccaappaacciittoorrss.. VVeerriiffyy wwiitthh aann aapppprroopprriiaattee vvoollttmmeetteerrtthhaatt aallll ccaappaacciittoorrss hhaavvee ddiisscchhaarrggeedd..FFoorr aaddddiittiioonnaall iinnffoorrmmaattiioonn rreeggaarrddiinngg tthhee ssaaffeeddiisscchhaarrggee ooff ccaappaacciittoorrss,, sseeee PPRROODD--SSVVBB0066**--EENN..

WWAARRNNIINNGGPPeerrssoonnaall PPrrootteeccttiivvee EEqquuiippmmeenntt ((PPPPEE))RReeqquuiirreedd!!FFaaiilluurree ttoo wweeaarr PPPPEE aanndd ffoollllooww pprrooppeerr hhaannddlliinngggguuiiddeelliinneess ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..AAllwwaayyss wweeaarr aapppprroopprriiaattee ppeerrssoonnaall pprrootteeccttiivveeeeqquuiippmmeenntt iinn aaccccoorrddaannccee wwiitthh aapppplliiccaabblleerreegguullaattiioonnss aanndd//oorr ssttaannddaarrddss ttoo gguuaarrdd aaggaaiinnssttppootteennttiiaall eelleeccttrriiccaall sshhoocckk aanndd ffllaasshh hhaazzaarrddss..

54 CVHE-SVX02M-EN

WWAARRNNIINNGGLLiivvee EElleeccttrriiccaall CCoommppoonneennttss!!FFaaiilluurree ttoo ffoollllooww aallll eelleeccttrriiccaall ssaaffeettyy pprreeccaauuttiioonnsswwhheenn eexxppoosseedd ttoo lliivvee eelleeccttrriiccaall ccoommppoonneennttss ccoouullddrreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..WWhheenn iitt iiss nneecceessssaarryy ttoo wwoorrkk wwiitthh lliivvee eelleeccttrriiccaallccoommppoonneennttss,, hhaavvee aa qquuaalliiffiieedd lliicceennsseedd eelleeccttrriicciiaannoorr ootthheerr iinnddiivviidduuaall wwhhoo hhaass bbeeeenn pprrooppeerrllyy ttrraaiinneeddiinn hhaannddlliinngg lliivvee eelleeccttrriiccaall ccoommppoonneennttss ppeerrffoorrmmtthheessee ttaasskkss..

Trane-supplied Starter WiringTable 15. Standard field power wiring requirements

Power SupplyWiringto Starter Panel

Starter PanelTerminals

3-Phase Line Voltage 2X3-L1, L2, L3, and Ground(a)

3-Phase Line Voltage: Circuit Breaker 2Q1-L1, L2, L3, and Ground

Starter to Motor PowerWiring Starter Motor

Remote Starter to Chiller Motor Junction Box T1 through T6 T1 through T6Starter to Control Panel120 Vac Control Wiring


Unit Control PanelTerminations

Max Terminal WireSize (AWG)(b)

Minimum CircuitAmpacity

120 Vac Power Supply (from Starter toControl Panel)

2X1-1, 2X1-22X1-20 (Ground)

1X1-1, 1X1-121X1-18 (Ground) 8 40

High Pressure Cutout to Starter 2X1-4 1X1-4 14 20

1Q1 Circuit Breaker to Starter (c) 1X1-3 14 20

Oil Pump Interlock 2X1-7, 2X1-8 1A7-J2-4, 1A7-J2-2 14 20Low Voltage CircuitsLess Than 30 Vac


Unit Control PanelTerminations

Standard Circuits

Inter-processor Communications (IPC)Remote-Mounted(d)

2A1-J3-3-4, or2X1-12 to 13 if Present (DoNOT Ground Shield at Starter)

1A1-J5-1-2, 3-4Shield Ground at1X1-22 (GND) Only

2-wire with GoundComm Link

Notes:1. All wiring to be in accordance with National Electrical Code (NEC) and any local codes.2. Oil pump motor: 1 Ph, 3/4 HP, 11.7 full load amps at 115 Vac.3. Auxiliary equipment must be powered from other sources as the chiller control panel power supplies are sized for the chiller loads only.

(a) Ground lug for a unit-mounted solid state starter or wye-delta starter is sized to accept 14 AWG solid to 8 AWG strand wire. If local codes require differentlug size, it must be field-supplied and -installed.

(b) Wires, lugs, and fuses/breakers are sized based on National Electric Code NEC [NFPA 70] and UL 1995.(c) 1Q1 Circuit Breaker to Starter connects to 2X16 Starter Panel Terminal for all starter types except the AFDG (Trane-supplied remote Danfoss AFD); for the

AFDG, 1Q1 Circuit Breaker to Starter connects to 2X13 Starter Panel Terminal.(d) Must be separated from 120 Vac and higher wiring.

NNoottee:: Control Power Transformer (CPTR, EnhancedElectrical Protection Package option): A unit-mounted, factory-wired, separate enclosurepositioned next to the control panel is availablewhen separate source control power is required.This permits the controls to remain poweredwhile the three-phase line voltage isdisconnected. Contact your local Tranerepresentative for more information.

EElleeccttrriiccaall RReeqquuiirreemmeennttss

CVHE-SVX02M-EN 55

Customer-supplied Remote Starter WiringTable 16. Standard customer-supplied remote field wiring requirements

Power SupplyWiring to Starter Panel Starter Panel Terminals

Starter by Others 3-phase Power Wiring See Starter by OthersSchematic

Starter to Motor PowerWiring Starters Motor

Remote Starter to Chiller Motor Junction Box T1 through T6 Terminals T1 through T6Terminals

Starter to Control Panel 120 Vac ControlWiring Starter Panel Terminals Unit Control Panel

TerminationsMax Terminal WireSize (AWG)(a)

Minimum CircuitAmpacity

120 Vac Power Supply (from Starter toControl Panel)

See Starter by OthersSchematic 5X1-1, 5X1-2, 5X1-

20 (Ground)

1X1-1, 1X1-12, 1X1-18(Ground) 8 40

Power from Control Panel 1Q1 5X1-3 1X1-3, 1A23-J6-3 14 20

Interlock Relay Signal 5X1-4 1A23-J10-1 14 20

Start Contactor Signal 5X1-5 1A23-J8-1 14 20

Oil Pump Interlock 5X1-7, 5X1-8 1A7-J2-4, 1A7-J2-2 14 20

Run Contactor Signal 5X1-10 1A23-J6-12 14 20

Transition Complete 5X1-14 1A23-J12-2 14 20

Low Voltage Circuits Less than 30 Vac Starter Panel Terminals Unit Control PanelTerminations

Standard Circuits

Current Transformers (refer to Table 17, p.55) (Required)(b)

5CT4-white, black5CT5-white, black5CT6-white, black

1A23-J7-1,21A23-J7-3,41A23-J7-5,6

Note: Phasing mustbe maintained.

Potential Transformers (Required)(b)5T17-236,2375T18-238,2395T19-240,241

1A23-J5-1,21A23-J5-3,41A23-J5-5,6

Note: Phasing mustbe maintained.

Solid State Stater Fault(c) 5X1-115X1-12

1A24-J2-11A24-J2-2

Notes:1. All wiring to be in accordance with National Electrical Code (NEC) and any local codes.2. Starter by Others Specification available from your local Trane sales office.

(a) Wires, lugs, and fuses/breakers are sized based on National Electric Code (NEC) [NFPA 70] and UL 1995.(b) Must be separated from 120 Vac and higher wiring.(c) Solid State Starter Fault input is used with low- and medium-voltage, customer-supplied solid state starters only.

Current Transformer andPotential Transformer WireSizingFor customer-supplied starter-to-chiller unit controlpanel starter module 1A23; these wires must beseparated from 120 Vac or higher wiring.

Table 17. Maximum recommended wire length forsecondary current transformer (CT) leads indual CT system

Wire AWG(a)MaximumWire LengthSecondary CT Leads

Feet Meters

8 1362.8 415.5

10 856.9 261.2

12 538.9 164.3

14 338.9 103.3

16 213.1 65.0

17 169.1 51.5

18 134.1 40.9

20 84.3 25.7Notes:

1. Wire length is for copper conductors only.2. Wire length is total one-way distance that the CTcan be fromthe starter module.

(a) Wires, lugs, and fuses/breakers are sized based on National ElectricCode (NEC) [NFPA 70] and UL 1995.

56 CVHE-SVX02M-EN

Table 18. Maximum recommended total wire lengthfor potential transformers (PTs) in a singlePT system

Wire AWG(a)Maximum Lead Length

Feet Meters

8 5339 1627

10 3357 1023

12 2112 643

14 1328 404

16 835 254

17 662 201

18 525 160

20 330 100

21 262 79

22 207 63Notes:

1. Wire length is for copper conductors only.2. Wire length is maximum round trip wire length. The maximumdistance the PTcan be located from the starter module is half of thelisted value.


Table 19. Maximum recommended total wire length(to and from) for PT leads in a dual PTsystem

Wire AWG(a)

MaxWire LengthPrimary

MaxWire LengthSecondary

Feet Meters Feet Meters

8 3061 933 711 217

10 1924 586 447 136

12 1211 369 281 85

14 761 232 177 53

16 478 145 111 33

17 379 115 88 26

18 301 91 70 21

20 189 57 44 13

21 150 45 34 10

22 119 36 27 8Notes:

1. Wire length is for copper conductors only.2. Wire length is maximum round trip wire length. The maximumdistance the PTcan be located from the starter module is half of thelisted value.


CCuussttoommeerr--ssuupppplliieedd RReemmoottee SSttaarrtteerr WWiirriinngg

CVHE-SVX02M-EN 57

Power Supply WiringWWAARRNNIINNGG

PPrrooppeerr FFiieelldd WWiirriinngg aanndd GGrroouunnddiinnggRReeqquuiirreedd!!FFaaiilluurree ttoo ffoollllooww ccooddee ccoouulldd rreessuulltt iinn ddeeaatthh oorrsseerriioouuss iinnjjuurryy..AAllll ffiieelldd wwiirriinngg MMUUSSTT bbee ppeerrffoorrmmeedd bbyy qquuaalliiffiieeddppeerrssoonnnneell.. IImmpprrooppeerrllyy iinnssttaalllleedd aanndd ggrroouunnddeeddffiieelldd wwiirriinngg ppoosseess FFIIRREE aanndd EELLEECCTTRROOCCUUTTIIOONNhhaazzaarrddss.. TToo aavvooiidd tthheessee hhaazzaarrddss,, yyoouu MMUUSSTT ffoolllloowwrreeqquuiirreemmeennttss ffoorr ffiieelldd wwiirriinngg iinnssttaallllaattiioonn aannddggrroouunnddiinngg aass ddeessccrriibbeedd iinn NNEECC aanndd yyoouurr llooccaall//ssttaattee//nnaattiioonnaall eelleeccttrriiccaall ccooddeess..

Three-Phase PowerReview and follow the guidelines in this section toproperly install and connect the power supply wiring tothe starter panel:

• Verify that the starter nameplate ratings arecompatible with the power supply characteristicsand with the electrical data on the unit nameplate.


NNOOTTIICCEEUUssee CCooppppeerr CCoonndduuccttoorrss OOnnllyy!!FFaaiilluurree ttoo uussee ccooppppeerr ccoonndduuccttoorrss ccoouulldd rreessuulltt iinneeqquuiippmmeenntt ddaammaaggee aass uunniitt tteerrmmiinnaallss aarree nnoottddeessiiggnneedd ttoo aacccceepptt ootthheerr ttyyppeess ooff ccoonndduuccttoorrss..

• Do NOT modify or cut enclosure to provideelectrical access. Removable panels have beenprovided and any modification should be doneaway from the enclosure. If the starter enclosuremust be cut to provide electrical access, exercisecare to prevent debris from falling inside theenclosure.

• Use copper conductors to connect the three-phasepower supply to the remote- or unit-mountedstarter panel.

• Flexible conduit connections are recommended toenhance serviceability and minimize vibrationtransmission.

• Size the power supply wiring in accordance withNational Electric Code (NEC), using the RLA valuestamped on the chiller nameplate and transformerload on L1 and L2.

• Confirm that wire size is compatible with lug sizestated in unit submittal.

• Make sure that the incoming power wiring isproperly phased; each power supply conduit run tothe starter must carry the correct number ofconductors to ensure equal phase representation.

NNoottee:: Connect L1, L2, and L3 (shown in thefollowing figure) per starter diagramprovided with chiller.

• When installing the power supply conduit, ensurethat the position of the conduit does not interferewith the serviceability of any of the unitcomponents, or with structural members andequipment. Ensure that the conduit is long enoughto simplify any servicing that may be necessary inthe future (e.g., starter).

• Electrical wire torque specifications—follow startermanufacturer’s torque specifications.

Figure 37. Proper phasing for starter power supplywiring

Circuit Breakers and FusedDisconnectsAny field-supplied circuit breaker or fused disconnectinstalled in power supplied to the chiller must be sizedin compliance with National Electric Code (NEC) orlocal guidelines.

Power Factor CorrectionCapacitors (Optional)Power factor correction capacitors (PFCCs) aredesigned to provide power factor correction for thecompressor motor. PFCCs are available as an optionfor unit- and remote-mounted starters.

58 CVHE-SVX02M-EN

NNootteess::

• Verify PFCC voltage rating is greater than orequal to the compressor voltage ratingstamped on the unit nameplate.

• Refer to the wiring diagrams that shippedwith the unit for specific PFCC wiringinformation.

NNOOTTIICCEEMMoottoorr DDaammaaggee!!FFaaiilluurree ttoo wwiirree PPFFCCCCss iinnttoo tthhee ssttaarrtteerr ccoorrrreeccttllyyccoouulldd ccaauussee mmiissaapppplliiccaattiioonn ooff tthheessee ccaappaacciittoorrssaanndd rreessuulltt iinn aa lloossss ooff mmoottoorr oovveerrllooaadd pprrootteeccttiioonnaanndd ssuubbsseeqquueennttllyy ccaauussee mmoottoorr ddaammaaggee..

PPFFCCCCss mmuusstt bbee wwiirreedd oonnee ooff ttwwoo wwaayyss aass sshhoowwnn aasseexxppllaaiinneedd iinn tthhee ffoolllloowwiinngg ffiigguurreess aannddaaccccoommppaannyyiinngg tteexxtt ((OOppttiioonn 11 aanndd OOppttiioonn 22))..

Figure 38. Option 1—PFCCs installed downstream ofstarter contactor, upstream of current transformers

WWAARRNNIINNGGHHaazzaarrddoouuss VVoollttaaggee ww//CCaappaacciittoorrss!!FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr aanndd ddiisscchhaarrggeeccaappaacciittoorrss bbeeffoorree sseerrvviicciinngg ccoouulldd rreessuulltt iinn ddeeaatthh oorrsseerriioouuss iinnjjuurryy..DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmootteeddiissccoonnnneeccttss aanndd ddiisscchhaarrggee aallll mmoottoorr ssttaarrtt//rruunnccaappaacciittoorrss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerrlloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerrccaannnnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. FFoorr vvaarriiaabblleeffrreeqquueennccyy ddrriivveess oorr ootthheerr eenneerrggyy ssttoorriinnggccoommppoonneennttss pprroovviiddeedd bbyy TTrraannee oorr ootthheerrss,, rreeffeerr ttootthhee aapppprroopprriiaattee mmaannuuffaaccttuurreerr’’ss lliitteerraattuurree ffoorraalllloowwaabbllee wwaaiittiinngg ppeerriiooddss ffoorr ddiisscchhaarrggee ooffccaappaacciittoorrss.. VVeerriiffyy wwiitthh aann aapppprroopprriiaattee vvoollttmmeetteerrtthhaatt aallll ccaappaacciittoorrss hhaavvee ddiisscchhaarrggeedd..FFoorr aaddddiittiioonnaall iinnffoorrmmaattiioonn rreeggaarrddiinngg tthhee ssaaffeeddiisscchhaarrggee ooff ccaappaacciittoorrss,, sseeee PPRROODD--SSVVBB0066**--EENN..

Simultaneously disconnect capacitors and load fromline power. If the capacitors are not switched offlinewhen the load is disconnected, they continue to addcapacitance to the electrical distribution system. Aleading power factor—too much capacitance—may

eventually develop. This overprotection causes poorvoltage regulation (i.e., voltage is high when the circuitis unloaded, then drops as loads are added).

Figure 39. Option 2—PFCC wires routed throughcurrent transformers

Size motor overload protection to account forcapacitor-supplied current. Overloads are typically setto measure the total current drawn by the motor. WhenPFCCs are used, they become the source of part of thatcurrent. If the current they provide is not registered bythe overload protectors, potentially damagingamperage can reach the motor. The simplest way toensure that the overloads detect all current supplied tothe motor is to position the PFCCs upstream of thecurrent transformers as shown in Figure 38, p. 58. If thecapacitor connection points are downstream of thecurrent transformers, route the PFCC leads through thecurrent transformers as shown in Figure 39, p. 58. Thisensures that the overloads register both line andcapacitor-supplied current.

Interconnecting WiringTypical equipment room conduit layouts with andwithout unit-mounted starters are shown in thefollowing two figures.

IImmppoorrttaanntt:: The interconnecting wiring between thestarter panel, compressor, and controlpanel is factory-installed with unit-mountedstarters. However, when a remote-mountedstarter is used, the interconnecting wiringmust be field-installed.

NNoottee:: Refer to starter submittal drawing for location ofincoming wiring to the starter.

PPoowweerr SSuuppppllyy WWiirriinngg

CVHE-SVX02M-EN 59

Figure 40. Typical equipment room layout for unitswith unit-mounted starters

1. Line side power conduits

2. Unit-mounted starter

3. Unit control panel

Figure 41. Typical equipment room layout for unitswith remote-mounted starters

1. Line side power conduits

2. Remote-mounted starter

3. Unit control panel

4. Inter-processor communication (IPC) circuit conduitless than 30V (and current transformer/potentialtransformer [CT/PT] wiring for starters by others)

NNoottee:: Must enter the low voltage Class 2 portion of theunit control panel (1000 feet [304.8 m]maximum).

5. Motor terminal box

6. 115V control conduit

NNoottee:: Must enter the higher than 30 Vdc Class 1 portionof the until control panel.

7. Lead power wiring

NNoottee:: Refer to the unit field connection diagram forapproximate unit control panel knock outlocations. To prevent damage to the unit controlpanel components, do NOT route control conduitinto the top of the box.

Starter to Motor Wiring(Remote-Mounted Starters Only)Ground Wire Terminal LugsGround wire lugs are provided in the motor terminalbox and in the starter panel.


60 CVHE-SVX02M-EN

Terminal Clamps

NNOOTTIICCEEUUssee CCooppppeerr CCoonndduuccttoorrss OOnnllyy!!FFaaiilluurree ttoo uussee ccooppppeerr ccoonndduuccttoorrss ccoouulldd rreessuulltt iinneeqquuiippmmeenntt ddaammaaggee aass uunniitt tteerrmmiinnaallss aarree nnoottddeessiiggnneedd ttoo aacccceepptt ootthheerr ttyyppeess ooff ccoonndduuccttoorrss..

Terminal clamps are supplied with the motor terminalsto accommodate either bus bars or standard motorterminal wire lugs. Terminal clamps provide additionalsurface area to minimize the possibility of improperelectrical connections.

Wire Terminal Lugs

NNOOTTIICCEECCoommppoonneenntt DDaammaaggee!!FFaaiilluurree ttoo eennssuurree tthhee ppoowweerr ssuuppppllyy wwiirriinngg aannddoouuttppuutt ttoo mmoottoorr wwiirriinngg aarree ccoonnnneecctteedd ttoo tthheepprrooppeerr tteerrmmiinnaallss ccoouulldd ccaauussee ccaattaassttrroopphhiicc ffaaiilluurreeooff tthhee ssttaarrtteerr aanndd//oorr mmoottoorr..

Wire terminal lugs must be field supplied.

• Use field-provided, crimp-type wire terminal lugsproperly sized for the application.

NNoottee:: Wire size ranges for the starter line and load-side lugs are listed on the starter submittaldrawings supplied by the startermanufacturer or Trane. Carefully review thesubmitted wire lug sizes for compatibilitywith the conductor sizes specified by theelectrical engineer or contractor.

• On 4160V and below, a terminal clamp with a3/8-in. (9.525-mm) bolt is provided on each motorterminal stud; use the factory-supplied Bellevillewashers on the wire lug connections. The followingfigure illustrates the junction between a motorterminal stud and terminal lug.

• Torque for this assembly is 24 ft·lb (32.5 N·m).

• Install but do NOT connect the power leadsbetween the starter and compressor motor. (Theseconnections will be completed under supervision ofa qualified Trane service engineer after the pre-startinspection.)

Figure 42. Terminal stud, clamp, and lug assembly(4160V and below)

1. Belleville washer

2. Terminal lugs

3. Terminal clamp

4. Motor terminal stud

5. 3/8-in. bolt

Bus Bars

NNOOTTIICCEECCoommppoonneenntt DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd ccaauussee aanneelleeccttrriiccaall sshhoorrtt wwhhiicchh ccoouulldd rreessuulltt iinn ccoommppoonneennttddaammaaggee..RReemmoovvee ddeebbrriiss ffrroomm iinnssiiddee tthhee CCPPTTRR ooppttiioonneenncclloossuurree ppaanneell bbeeffoorree ttuurrnniinngg tthhee ppoowweerr oonn..

Bus bars and extra nuts are available as a Trane option.

Install the bus bars between the motor terminals whenusing a starter that is:

• A low-voltage Adaptive Frequency™ Drive (AFD)

• Across-the-line

• Primary reactor/resistor

• Autotransformer

• Customer-supplied

Connect T1 to T6, T2 to T4, and T3 to T5.

NNoottee:: Bus bars are not needed in medium-voltage orhigh-voltage applications since onlythree terminals are used in the motor and starter.

When attaching starter leads to 6.6 to 7kV motorterminals, the 1/2-in.-13 brass jam nuts should betightened to a maximum torque of 18 to 22 ft·lb (24.4 to29.8 N·m). Always use a second wrench to backup the


CVHE-SVX02M-EN 61

assembly and prevent applying excessive torque to theterminal shaft.

Starter to Control Panel WiringThe unit submittal includes the field wiring connectiondiagram and the starter-to-control-panel connectiondiagram (showing the electrical connections requiredbetween the remote-mounted starter and the controlpanel).

NNoottee:: Install separate conduit into the low voltage(30 volts) section of the control panel.

When sizing and installing the electrical conductors forthese circuits, follow the guidelines listed. Use 14 AWGfor 120V control circuits unless otherwise specified.


IImmppoorrttaanntt:: Maintain at least 6 in. (16 cm) between low-voltage (less than 30V) and high-voltagecircuits. Failure to do so could result inelectrical noise that may distort the signalscarried by the low-voltage wiring, includingthe inter-processor communication (IPC)wiring.

To wire the starter to the control panel, use theseguidelines:

• If the starter enclosure must be cut to provideelectrical access, exercise care to prevent debrisfrom falling inside the enclosure. Do NOT cut theAdaptive Frequency™ Drive (AFD) enclosure.

• Use only shielded, twisted-pair wiring for the inter-processsor communication (IPC) circuit betweenthe starter and the control panel on remote-mounted starters.

NNoottee:: Recommended wire is Beldon Type 8760,18 AWG for runs up to 1000 ft (304.8 m). Thepolarity of the IPC wiring is critical for properoperation.

• Separate low-voltage (less than 30V; refer to Table15, p. 54 and Table 16, p. 55) wiring from the 115Vwiring by running each in its own conduit.

• When routing the IPC circuit out of the starterenclosure, ensure that it is at least 6 in. (16 cm) fromall wires carrying a higher voltage.


IImmppoorrttaanntt::

• The IPC wiring shield should begrounded on one end only at controlpanel end. The other end should be un-terminated and taped back on the cablesheath to prevent any contact betweenshield and ground.

• Oil Pump Interlock: All starters mustprovide an interlock (normally open)contact with the chiller oil pumpconnected to the control panel atterminals 1A7-2-4 and 1A7-J2-2(14 AWG) The purpose of this interlockis to maintain the oil pump signal in theevent that a starter failure, such aswelded contacts, keeps the chillermotor running after the controllerinterrupts the run signal.


62 CVHE-SVX02M-EN

10 to 13.8kV Medium Voltage MotorWWAARRNNIINNGG

HHaazzaarrddoouuss VVoollttaaggee!!FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr bbeeffoorree sseerrvviicciinngg ccoouullddrreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmootteeddiissccoonnnneeccttss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerrlloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerrccaann nnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. VVeerriiffyy tthhaatt nnooppoowweerr iiss pprreesseenntt wwiitthh aa vvoollttmmeetteerr..

All electrical circuits shall be treated as energized untilall lockout/tagout procedures are in place and thecircuit has been tested to verify that it is de-energized.The medium-voltage motor terminal box cover mustNOT be removed if power is present, or if there is apossibility that power may be present. Working onenergized medium-voltage circuits is not an approvedpractice for normal HVAC maintenance or service.

The motor is suitable for remote-mounted across-the-line (including circuit breaker starting), primary reactor,autotransformer, or solid-state starting. Refer to theunit nameplate for motor data including RLA, LRA, etc.

In all cases of non-Trane supplied starters, the TraneEngineering Specification for UC800 Starter By Others(available through your local Trane office) must befollowed in order to ensure proper function andprotection of the chiller. A disconnecting means andshort-circuit protection must be installed ahead of thestarter, unless they are included as part of the starter.

NNoottee:: Trane assumes no responsibility for the design,documentation, construction, compatibility,installation, start-up, or long term support ofstarters provided by others.

Motor Terminal BoxA large steel motor terminal box is provided to allowfor the field connection of the motor power supply wireto the motor.

Figure 43. Motor terminal box dimensions, in. (mm)

• Motor terminal box cover-only weight is 55 lb(25 kg).

• Two 7/8-in. (22.225 mm) lifting holes are providedin the cover.

• Motor terminal box weight without the cover is215 lb (97.5 kg).

• Two 3/8-in.–16 weld nuts are provided on the top ofthe terminal box to allow the use of properly ratedlifting D-rings if removal is needed for clearancepurposes.

NNoottee:: If the box is removed for installationpurposes, the motor terminals MUST beprotected against impact or stress damage.Field fabrication of a cover or guard isrequired.

• The motor terminal box is large enough toaccommodate the use of stress cones.

• If conduit is applied, a flexible connection of theconduit to the box should be made to allow for unitserviceability and for vibration isolation. The cableshould be supported or protected against abrasionand wear on any edges or surfaces. Cable orconduit openings can be cut at any location in thebox sides, top, or bottom for cable entry. Alwaysensure that NO debris remains in the box aftercutting cable entry holes.

CVHE-SVX02M-EN 63

Motor Supply Wiring


Motor circuit wire sizing by the installer must be madein accordance with the National Electric Code (NEC) orany other applicable codes. All wiring to theCenTraVac™ chiller motor must be shielded copper,with insulation rated to a minimum of 15kV.

Three terminals are provided on the chiller for theconnection of power to the motor from the starter.Power leads to motors must be in multiples of three,with equal phase representation in all conduits or wiretrays. To limit the effects of corona or ionization withcables carrying more than 2000V, Trane requires thatthe power cable have a metallic shield, unless the cableis specifically listed or approved for non-shielded use.If the cable is shielded, the shielding must be groundedat one end (grounding is typically done at the starter orsupply end).

Care must be taken while routing the incoming cablesto ensure that cable loads or tensions are not applied tothe terminal or premature terminal failure could result.

Motor TerminalsField-provided, ring-type lugs, with no sharp edges orcorners, must be used by a qualified installer toconnect the power wiring to the motor terminals.

Follow all instructions provided with the field-providedlugs to ensure proper connections.

IImmppoorrttaanntt:: The use of stress cones is highlyrecommended to reduce and controllongitudinal and radial electrical stresses atthe cable ends.

Prior to assembly the terminal stud, nuts, and lugshould be inspected and cleaned to ensure they are notdamaged or contaminated.

The terminal has a copper shaft that is threaded 9/16-in.-18 UNF2A. Brass nuts are provided on the motorterminals to retain the lugs, and the final connectionshould be tightened to 22 to 25 ft·lb (29.8 to 33.9 N·m)using a 7/8-in. (22.225-mm) socket on a torque wrench.

NNOOTTIICCEEMMoottoorr TTeerrmmiinnaall DDaammaaggee!!AAppppllyyiinngg ttoorrqquuee ttoo tthhee mmoottoorr tteerrmmiinnaall wwhheennttiigghhtteenniinngg lluuggss ccoouulldd rreessuulltt iinn eeqquuiippmmeenntt oorrpprrooppeerrttyy--oonnllyy ddaammaaggee..AAllwwaayyss uussee aa sseeccoonndd wwrreenncchh ttoo bbaacckk--uupp tthheeaasssseemmbbllyy aanndd pprreevveenntt tthhee aapppplliiccaattiioonn ooff ttoorrqquuee ttootthhee tteerrmmiinnaall sshhaafftt..

Before beginning wiring and torquing, ensure propermotor terminal care and do NOT apply any excessstress.

Ground Wire Terminal LugA ground wire lug is provided in the motor terminalbox to allow the field connection of an earth ground.The lug will accept a field-supplied ground wire of #8 to#2 AWG. After completing the field connection ofwiring, inspect and clean the motor terminals andmotor housing, and remove any debris beforereinstalling the motor terminal box cover. The covermust be re-installed onto the motor terminal box andall bolts installed. Do NOT operate the chiller with themotor terminal box cover removed or with any loose ormissing cover bolts.

1100 ttoo 1133..88kkVV MMeeddiiuumm VVoollttaaggee MMoottoorr

64 CVHE-SVX02M-EN

System Control Circuit Wiring (Field Wiring)Table 20. Unit control panel wiring 120 Vac

Standard Control Circuits: UnitControl Panel Control Wiring

(120 Vac)Unit Control Terminations Input or Output Type Contacts

Chilled Water Flow Proving Input(a) 1X1-5 to 1A6-J3-2 Binary Input Normally Open, Closure with FlowCondenser Water Flow Proving

Input(b) 1X1-6 to 1A6-J2-2 Binary Input Normally Open, Closure with Flow

Chilled Water Pump Relay Output 1A5-J2-4 to 6 Binary Output Normally OpenCondenser Water Pump Relay

Output 1A5-J2-1 to 3 Binary Output Normally Open

Optional Control Circuits (120Vac) Note: Defaults are factory programmed; alternates can be selected at start-up using the service tool.

Alarm Relay MAR (Non-Latching)Output 1A8-J2-1 to 3 Binary Output Normally Open

Limit Warning Relay Output 1A8-J2-4 to 6 Binary Output Normally Open

Alarm Relay MMR (Latching) Output 1A8-J2-7 to 9 Binary Output Normally Open

Compressor Running Relay Output 1A8-J2-10 to 12 Binary Output Normally Open

Maximum Capacity Relay Output 1A9-J2-1 to 3 Binary Output Normally Open

Head Relief Request Relay Output 1A9-J2-4 to 6 Binary Output Normally Open

Purge Alarm Relay Output 1A9-J2-7 to 9 Binary Output Normally Open

Ice Making Relay Output 1A5-J2-10 to 12 Binary Output Normally Open

Free Cooling Relay Output 1A11-J2-4 to 6 Binary Output Normally OpenStandard Low Voltage Circuits

(Less than 30 Vac)(c) Unit Control Panel Terminations Input or Output Type Contacts

External Auto Stop Input 1A13-J2-1 to 2 Binary Input Closure Required for NormalOperation

Emergency Stop Input 1A13-J2-3 to 4 Binary Input Closure Required for NormalOperation

Optional Low Voltage Circuits

External Base Loading Enable Input 1A18-J2-1 to 2 Binary Input Normally OpenExternal Hot Water Control Enable

Input 1A18-J2-3 to 4 Binary Input Normally Open

External Ice Machine ControlEnable Input 1A19-J2-1 to 2 Binary Input Normally Open

External Free Cooling Input EnableInput 1A20-J2-1 to 2 Binary Input Normally Open

% RLA Compressor Output 1A15-J2-1 to 3 Analog Output 2–10 VdcExternal Condenser Pressure

Output 1A15-J2-4 to 6 Analog Output 2–10 Vdc

Evaporator/Condenser DifferentialPressure Output 1A15-J2-4 to 6 Analog Output 2–10 Vdc

Condenser Head Pressure Control 1A15-J2-4 to 6 Analog Output 2–10 VdcExternal Current Limit Setpoint

Input 1A16-J2-2 to 3 Analog Input 2–10 Vdc, or 4–20 mA

External Chilled Water SetpointInput 1A16-J2-5 to 6 Analog Input 2–10 Vdc, or 4–20 mA

External Base Loading SetpointInput 1A17-J2-2 to 3 Analog Input 2–10 Vdc, or 4–20 mA

Generic Refrigerant Monitor Input 1A17-J2-5 to 6 Analog Input 2–10 Vdc, or 4–20 mA

Outdoor Air Temperature Sensor Inter-processor Communication(IPC) Bus Connection and Sensor Communication and Sensor

Tracer® Comm Interface orLonTalk®

1A14-J2-1(+) to 2(-)1A14-J2-3(+) to 4(-)

Communication to Tracer®or LonTalk® (As Ordered; See Sales Order)

BACnet® or MODBUS® 1A22, 5(+) to 6(-) Communication to BACnet® orMODBUS® (As Ordered; See Sales Order)

Tracer® SC Module 1A10 Communication to Tracer® SCModule

NNoottee:: All wiring to be in accordance with National Electrical Code (NEC) and any local codes.

(a) If the Chilled Water Flow Proving Input is a factory-installed ifm efector® flow-sensing device, the secondary field device (recommended with 38°F [3.3°C] and lower leaving chilled water temperatures) for proof of flow connects from 1X1-5 to 1K26-4 (binary input; normally open, closure with flow).Remove factory jumper when used.

CVHE-SVX02M-EN 65

Table 20. Unit control panel wiring 120 Vac (continued)(b) If the Condenser Water Flow Proving Input is a factory-installed ifm efector® flow-sensing device, the secondary (optional) field device for proof of flow

connects from 1X1-6 to 1K27-4 (binary input; normally open, closure with flow). Remove factory jumper when used.(c) Standard low-voltage circuits (less than 30 Vac) must be separated from 120 Vac or higher wiring.

Water Pump Interlock Circuitsand Flow Switch Input

WWAARRNNIINNGGHHaazzaarrddoouuss VVoollttaaggee!!FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr bbeeffoorree sseerrvviicciinngg ccoouullddrreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmootteeddiissccoonnnneeccttss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerrlloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerrccaann nnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. VVeerriiffyy tthhaatt nnooppoowweerr iiss pprreesseenntt wwiitthh aa vvoollttmmeetteerr..

NNoottee:: The circuits for the chilled water proof of flowand the condenser water proof of flow do NOTrequire external power. Refer to the wiringdiagrams that shipped with the chiller.

Chilled Water Pump1. Wire the evaporator water pump contactor (5K1) to

a separate 120 volt single-phase power supply with14 AWG, 600V copper wire.

2. Connect circuit to 1A5-J2-6.

3. Use 1A5-J2-4 120 Vac output to allow the controlpanel to control the evaporator water pump, or wirethe 5K1 contactor to operate remotely andindependently of the control panel.

Chilled Water Proof of FlowWhen this circuit is installed properly and theevaporator pump is running and providing the requiredminimum flow, this circuit will prove the evaporatorwater flow for the chiller controls. Proof of evaporatorwater flow is required before the start sequence will beallowed to proceed and a loss of evaporator water flowduring chiller operation will result in a chiller shut-down.

Refer to as-built schematics on the inside of the controlpanel for field wiring. This is a dry binary input;normally-open, closure for flow. Apply no externalpower.

1. With factory-installed ifm efector® flow-sensingdevices, a field-provided secondary flow-sensingdevice is recommended with applications having38°F (3.3°C) and below leaving evaporator watertemperatures. When a secondary flow-sensingdevice is used, remove the factory jumper andinstall its contacts between 1X1-5 to 1K26-4; thisplaces the secondary flow sensing device in serieswith the ifm efector® flow-sensing device.

2. For field-provided primary proof of flow devices,

connect the primary proof of flow device betweenterminals 1X1-5 to 1A6-J3-2. A secondary fielddevice is recommended with applications having38°F (3.3°C) and below leaving evaporator watertemperatures, and must be field-wired in serieswith the primary proof of flow device.

Condenser Water Pump1. Wire the condenser water pump contactor (5K2) to

a separate 120-volt, single-phase power supply with14 AWG, 600-volt copper wire.

2. Connect circuit to control panel terminals 1A5-J2-3.

3. Use 1A5-J2-1 120 Vac output to allow the controlpanel to control the condenser pump.

Condenser Water Proof of FlowWhen this circuit is installed properly and thecondenser pump is running and providing the requiredminimum condenser water flow, this circuit will provethe condenser water flow for the chiller controls. Proofof condenser water flow is also required for the startsequence will be allowed to proceed and a loss ofcondenser water flow during chiller operation willresult in a chiller shut-down.

Refer to as-built schematics on the inside of the controlpanel for field wiring. This is a dry binary input;normally-open, closure for flow. Apply no externalpower.

1. With factory-installed ifm efector® flow-sensingdevices, a secondary field-provided flow-sensingdevice is optional. When a secondary flow-sensingdevice is used, remove the factory jumper, andinstall its contacts between 1X1-5 to 1K27-4; thisplaces the secondary flow sensing device in serieswith the ifm efector® flow-sensing device.

2. For field-provided primary proof of flow devices,connect the primary proof of flow device betweenterminals 1X1-6 to 1A6-J2-2. The secondary fieldprovided flow sensing device is optional; however,when it is present, it must be field-wired in serieswith the primary proof of flow device.

Temperature Sensor CircuitsAll temperature sensors are factory installed except theoptional outdoor air temperature sensor. This sensor isrequired for the outdoor air temperature type of chilledwater reset. Use the following guidelines to locate andmount the outdoor air temperature sensor. Mount thesensor probe where needed; however, mount thesensor module in the control panel.

SSyysstteemm CCoonnttrrooll CCiirrccuuiitt WWiirriinngg ((FFiieelldd WWiirriinngg))

66 CVHE-SVX02M-EN

CWR—Outdoor OptionThe outdoor temperature sensor is similar to the unit-mounted temperature sensors in that it consists of thesensor probe and the module. A four-wire inter-processor communication (IPC) bus is connected to themodule for 24 Vdc power and the communications link.Trane recommends mounting the sensor modulewithin the control panel and the sensor two wire leadsbe extended and routed to the outdoor temperaturesensor probe sensing location. This ensures the four-wire inter-processor control (IPC) bus protection andprovides access to the module for configuration atstart-up.

The sensor probe lead wire between the sensor probeand the module can be separated by cutting the two-wire probe lead leaving equal lengths of wire on eachdevice: the sensor probe and the sensor module.

NNoottee:: This sensor and module are matched and mustremain together or inaccuracy may occur.

These wires can then be spliced with two 14 to 18 AWG600V wires of sufficient length to reach the desiredoutdoor location with a maximum length 1000 ft(304.8 m). The module four-wire bus must beconnected to the control panel four-wire bus using theTrane-approved connectors provided.

The sensor will be configured (given its identity andbecome functional) at start-up when the Trane servicetechnician performs the start-up configuration. It willNOT be operational until that time.

NNoottee:: If shielded cable is used to extend the sensorleads, be sure to cover the shield wire with tapeat the junction box and ground it at the controlpanel. If the added length is run in conduit, doNOT run them in the same conduit with othercircuits carrying 30 or more volts.

IImmppoorrttaanntt:: Maintain at least 6 in. (15.24 cm) betweenlow-voltage (less than 30V) and highvoltage circuits. Failure to do so couldresult in electrical noise that may distort thesignals carried by the low-voltage wiring,including the IPC.

Optional Control and Output CircuitsInstall various optional wiring as required by theowner’s specifications (see Table 20, p. 64).

Optional Tracer CommunicationInterfaceThis control option allows the control panel toexchange information—such as chiller status andoperating set points—with a Tracer® system.

NNoottee:: The circuit must be run in separate conduit toprevent electrical noise interference.

Additional information about the Tracer®communication interface option is published in theInstallation and Operationmanual that ships with theTracer® communication interface

Starter Module ConfigurationThe starter module configuration settings will bechecked (and configured for remote starters) duringstart-up commissioning.

NNoottee:: To configure starter modules and perform otherstarter checks, it is recommended that the linevoltage three-phase power be turned off andsecured (locked out), and then that a separatesource control power (115 Vac) be utilized topower up the control circuits.

Use the as-built starter schematic to ensure correctfuse and terminals. Verify that the correct fuse isremoved and that the control circuit connections arecorrect; then apply the 115 Vac separate source powerto service the controls.

Schematic Wiring DrawingsPlease refer to the submittals and drawings thatshipped with the unit. Additional wiring drawings forCenTraVac™ chillers are available from your localTrane office.

SSyysstteemm CCoonnttrrooll CCiirrccuuiitt WWiirriinngg ((FFiieelldd WWiirriinngg))

CVHE-SVX02M-EN 67

Operating PrinciplesGeneral RequirementsOperation and maintenance information for CVHE,CVHF, and CVHG CenTraVac™ chillers are covered inthis section. This includes both 50 and 60 Hz centrifugalchillers equipped with the Tracer® AdaptiView™UC800 control system. This information pertains to allchiller types unless differences exist, in which case thesections are listed by chiller type as applicable anddescribed separately. By carefully reviewing thisinformation and following the instructions given, theowner or operator can successfully operate andmaintain a CenTraVac™ chiller. If mechanical problemsdo occur, however, contact a Trane service technicianto ensure proper diagnosis and repair of the unit.

IImmppoorrttaanntt:: Although CenTraVac™ chillers can operatethrough surge, it is NOT recommended tooperate them through repeated surges overlong durations. If repeated surges of longdurations occur, contact your Trane ServiceAgency to resolve the issue.

Cooling CycleWhen in the cooling mode, liquid refrigerant isdistributed along the length of the evaporator andsprayed through small holes in a distributor (i.e.,running the entire length of the shell) to uniformly coateach evaporator tube. Here, the liquid refrigerantabsorbs enough heat from the system water circulatingthrough the evaporator tubes to vaporize. The gaseousrefrigerant is then drawn through the eliminators(which remove droplets of liquid refrigerant from thegas) and the first-stage variable inlet guide vanes, andinto the first-stage impeller.

CVHE and CVHG 3-Stage CompressorCompressed gas from the first-stage impeller flowsthrough the fixed, second-stage inlet vanes and intothe second-stage impeller. Here, the refrigerant gas isagain compressed, and then discharged through thethird-stage variable guide vanes and into the third-stage impeller. After the gas is compressed a thirdtime, it is discharged into the condenser. Baffles withinthe condenser shell distribute the compressedrefrigerant gas evenly across the condenser tubebundle. Cooling tower water circulated through thecondenser tubes absorbs heat from the refrigerant,causing it to condense. The liquid refrigerant thenpasses through an orifice plate and into theeconomizer.

The economizer reduces the energy requirements ofthe refrigerant cycle by eliminating the need to pass allgaseous refrigerant through three stages ofcompression (refer to Figure 45, p. 67). Notice thatsome of the liquid refrigerant flashes to a gas becauseof the pressure drop created by the orifice plates, thus

further cooling the liquid refrigerant. This flash gas isthen drawn directly from the first and second stages ofthe economizer into the third- and second-stageimpellers of the compressor, respectively. Allremaining liquid refrigerant flows through anotherorifice plate to the evaporator.

Figure 44. Pressure enthalpy curve, 3-stage

Figure 45. Refrigerant flow, 3-stage

CVHF 2-Stage CompressorCompressed gas from the first-stage impeller isdischarged through the second-stage variable guidevanes and into the second-stage impeller. Here, therefrigerant gas is again compressed, and thendischarged into the condenser. Baffles within thecondenser shell distribute the compressed refrigerantgas evenly across the condenser tube bundle. Coolingtower water circulated through the condenser tubesabsorbs heat from the refrigerant, causing it tocondense. The liquid refrigerant then flows out of thebottom of the condenser, passing through an orificeplate and into the economizer.

The economizer reduces the energy requirements ofthe refrigerant cycle by eliminating the need to pass all

68 CVHE-SVX02M-EN

gaseous refrigerant through both stages ofcompression (refer to Figure 47, p. 68). Notice thatsome of the liquid refrigerant flashes to a gas becauseof the pressure drop created by the orifice plate, thusfurther cooling the liquid refrigerant. This flash gas isthen drawn directly from the economizer into thesecond-stage impellers of the compressor. Allremaining liquid refrigerant flows out of theeconomizer, passing through another orifice plate andinto the evaporator.

Figure 46. Pressure enthalpy curve

Figure 47. Refrigerant flow, 2-stage

Oil and Refrigerant PumpCompressor Lubrication SystemA schematic diagram of the compressor lubricationsystem is illustrated in the following figure. Oil ispumped from the oil tank (by a pump and motorlocated within the tank) through an oil pressureregulating valve designed to maintain a net oilpressure of 18 to 22 psid (124.1 to 151.7 kPaD). It is thenfiltered and sent to the oil cooler located in theeconomizer and on to the compressor motor bearings.From the bearings, the oil drains back to the manifoldand separator under the motor and then on to the oiltank.

OOppeerraattiinngg PPrriinncciipplleess

CVHE-SVX02M-EN 69

Figure 48. Oil refrigerant pump

1. Motor coolant return to condenser, 2.125 in. (53.975 mm) OD

2. Oil tank vent to evaporator

3. Oil separator and tank vent manifold

4. Tank vent line

5. Condenser

6. High pressure condenser gas to drive oil reclaim eductors, 0.375 in. (9.525 mm) OD

7. Oil return to tank

8. Oil tank

9. Oil cooler within economizer 0.625 in. (15.875 mm) OD coiled tubing

10. Oil reclaim from evaporator (second eductor), 0.25 in. (6.35 mm) OD

11. Liquid refrigerant to pump, 1.625 in. (41.275 mm) OD

12. Economizer

13. Oil supply to bearings, 0.625 in. (15.875 mm) OD

14. Purge

15. Compressor

16. Liquid refrigerant motor coolant supply, 1.125 in. (28.575 mm) OD

17. Liquid refrigerant to economizer

18. Liquid refrigerant to evaporator

19. Evaporator


70 CVHE-SVX02M-EN

20. Oil reclaim from suction cover (first eductor), 0.25 in. (6.35 mm) OD

21. Motor coolant filter

CCAAUUTTIIOONNHHoott SSuurrffaaccee!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinnmmooddeerraattee iinnjjuurryy..SSuurrffaaccee tteemmppeerraattuurreess ccaann rreeaacchh 115500°°FF ((6666°°CC)).. TTooaavvooiidd ppoossssiibbllee sskkiinn bbuurrnnss,, ssttaayy cclleeaarr ooff tthheesseessuurrffaacceess.. IIff ppoossssiibbllee,, aallllooww ssuurrffaacceess ttoo ccooooll bbeeffoorreesseerrvviicciinngg.. IIff sseerrvviicciinngg iiss nneecceessssaarryy wwhhiillee ssuurrffaacceetteemmppeerraattuurreess aarree ssttiillll eelleevvaatteedd,, yyoouu MMUUSSTT ppuutt oonnaallll PPeerrssoonnaall PPrrootteeccttiivvee EEqquuiippmmeenntt ((PPPPEE))..

To ensure proper lubrication and prevent refrigerantfrom condensing in the oil tank, a 750-watt heater is ina well in the oil tank. The heater is used to warm the oilwhile the unit is off. With the default settings for R-123,the oil heater is de-energized when the unit starts. Withthe default settings for R-514A, Running OilTemperature Control is enabled, and the Running OilTemperature Setpoint is factory-programmed at 100°F(37.8°C). With either refrigerant, the heater energizes asneeded to maintain 140°F to 145°F (60.0°C to 62.8°C)when the chiller is not running.

With R-123 and mineral oil, when the chiller isoperating, the temperature of the oil tank is typically100°F to 160°F (37.8°C to 71.1°C). With R-514A, solidstate oil heater control is installed and enabled. The oilreturn lines from the thrust and journal bearingstransport oil and some seal leakage refrigerant. The oilreturn lines are routed into a manifold and separatorunder the motor. Gas flow exits the top of the manifoldand is vented to the evaporator. Oil exits the bottom ofthe manifold and returns to the tank. Separation of theseal leakage gas in the separator keeps this gas out ofthe tank.

A dual eductor system is used to reclaim oil from thesuction cover and the evaporator, and deposit it backinto the oil tank. These eductors use high-pressurecondenser gas to draw the oil from the suction coverand evaporator to the eductors and then discharge intothe oil tank. The evaporator eductor line has a shut-offvalve mounted by the evaporator.The shut-off valvewill be set during commissioning, but may be adjusted

later by a qualified technician as necessary for oilreturn. A normal operating setting for the valve mayrange from full closed to two turns open.

NNoottee:: Depending on operating conditions, the oilsump’s normal operating oil level may vary fromjust below the bottom sight glass to near the topof the upper sight glass.

Liquid refrigerant is used to cool the oil supply to boththe thrust bearing and journal bearings. On refrigerantpump units, the oil cooler is located inside theeconomizer and uses refrigerant passing from thecondenser to evaporator to cool the oil. Oil leaves theoil cooler and flows to both the thrust and journalbearings.

Motor Cooling SystemCompressor motors are cooled with liquid refrigerant(refer to Figure 48, p. 69). The refrigerant pump islocated on the front of the oil tank (motor inside the oiltank). The refrigerant pump inlet is connected to thewell at the bottom of the condenser. The connection ison the side where a weir ensures a preferential supplyof liquid refrigerant. Refrigerant is delivered to themotor via the pump. An in-line filter is installed (replacethe in-line filter only with major service). Motorrefrigerant drain lines are routed to the condenser.

Tracer AdaptiView DisplayInformation is tailored to operators, servicetechnicians, and owners.

When operating a chiller, there is specific informationyou need on a day-to-day basis—setpoints, limits,diagnostic information, and reports.

Day-to-day operational information is presented at thedisplay. Logically organized groups of information—chiller modes of operation, active diagnostics, settings,graphs, and reports put information conveniently atyour fingertips. For more information, refer to TracerAdaptiView Display for Water-Cooled CenTraVacChillers Operations Guide (CTV-SVU01*-EN).


CVHE-SVX02M-EN 71

Start-up and Shut-downThis section provides basic information on chilleroperation for common events.

Sequence of OperationAdaptive control algorithms are used on CenTraVac™chillers. This section illustrates common controlsequences.

Software Operation Overview DiagramThe following figure is a diagram of the five possiblesoftware states. This diagram can be thought of as astate chart, with the arrows and arrow text, depictingthe transitions between states:

• The text in the circles are the internal softwaredesignations for each state.

• The first line of text in the circles are the visible toplevel operating modes that can be displayed inTracer® AdaptiView™.

• The shading of each software state circlecorresponds to the shading on the time lines thatshow the state that the chiller is in.

There are five generic states that the software can bein:

• Power Up

• Stopped

• Starting

• Running

• Stopping

Figure 49. Software operation overview

72 CVHE-SVX02M-EN

Figure 50. Sequence of operation: Tracer®® AdaptiView™™ power up

In the following diagrams:

• The time line indicates the upper level operatingmode, as it would be viewed in the Tracer®AdaptiView™.

• The shading color of the cylinder indicates thesoftware state.

• Text in parentheses indicates sub-mode text asviewed in the Tracer® AdaptiView™.

• Text above the time line cylinder is used to illustrateinputs to the UC800. This may include user input tothe Tracer® AdaptiView™ touch screen, controlinputs from sensors, or control inputs from ageneric BAS.

• Boxes indicate control actions such as turning onrelays, or moving the inlet guide vanes.

• Smaller cylinders indicate diagnostic checks, textindicates time-based functions, solid double arrowsindicate fixed timers, and dashed double arrowsindicate variable timers.

Start-up Sequence of Operation—Wye-deltaLogic circuits within the various modules will

determine the starting, running, and stoppingoperation of the chiller. When operation of the chiller isrequired, the chiller mode is set at “Auto.” Usingcustomer-supplied power, the chilled water pump relayis energized and chilled water flow must be verifiedwithin 4 minutes and 15 seconds. The UC800 decides tostart the chiller based on the differential to startsetpoint. With the differential to start criteria met, theUC800 then energizes condenser water pump relaywith customer-supplied power (refer to Figure 51, p.73).

Based on the Restart Inhibit function and theDifferential to Start setpoint, the oil and refrigerantpump is energized. The oil pressure must be at least12 psid (82.7 kPaD) for 60 continuous seconds andcondenser water flow verified within 4 minutes and15 seconds for the compressor start sequence to beinitiated.

The compressor motor starts in the “Wye”configuration and then, after the compressor motor hasaccelerated and the maximum phase current hasdropped below 85 percent of the chiller nameplate RLAfor 1.5 seconds, the starter transitions to the “Delta”configuration.

SSttaarrtt--uupp aanndd SShhuutt--ddoowwnn

CVHE-SVX02M-EN 73

Figure 51. Sequence of operation: power up to starting

Now that the compressor motor is running in the“Delta” configuration, the inlet guide vanes willmodulate, opening and closing to the chiller loadvariation by operation of the stepper vane motoractuator to satisfy chilled water setpoint. The chillercontinues to run in its appropriate mode of operation:Normal, Softload, Limit Mode, and so on (refer toFigure 52, p. 74).

If the chilled water temperature drops below the chilledwater setpoint by an amount set as the differential tostop setpoint, a normal chiller stop sequence isinitiated as follows:

1. The inlet guide vanes are driven closed (up to

50 seconds).

2. After the inlet guide vanes are closed, the stop relayand the condenser water pump relays open to turnoff. The oil and refrigerant pump motor willcontinue to run for 3 minutes post-lube while thecompressor coasts to a stop. The chilled waterpump will continue to run while the UC800monitors leaving chilled water temperature,preparing for the next compressor motor startbased on the differential to start setpoint.

Figure 53, p. 74 illustrates this sequence.


74 CVHE-SVX02M-EN

Figure 52. Sequence of operation: running

Figure 53. Sequence of operation: satisfied setpoint

If the STOP key is pressed on the operator interface, thechiller will follow the same stop sequence as describedearlier except the chilled water pump relay will alsoopen and stop the chilled water pump after the chilledwater pump delay timer has timed out aftercompressor shut down (see Figure 55, p. 76).

If the immediate stop is initiated, a panic stop occurswhich follows the same stop sequence as pressing theSTOP key once, except the inlet guide vanes are notsequence-closed and the compressor motor isimmediately turned off.


CVHE-SVX02M-EN 75

Figure 54. Sequence of operation: Fast restart within postlube


76 CVHE-SVX02M-EN

Figure 55. Sequence of operation: normal shut-down to stopped and run inhibit

Power Up DiagramFigure 51, p. 73 illustrates Tracer® AdaptiView™during a power up of the UC800. This process takesfrom 30 to 50 seconds depending on the number ofinstalled options.

Ice Machine ControlThe control panel provides a service level Enable orDisable menu entry for the Ice Building feature whenthe Ice Building option is installed. Ice Building can beentered from Front Panel or, if hardware is specified,the control panel will accept either an isolated contactclosure 1A19 Terminals J2-1 and J2-2 (Ground) or aremote-communicated input (BAS) to initiate the icebuilding mode where the unit runs fully loaded at alltimes. Ice building will be terminated either by openingthe contact or based on entering evaporator fluidtemperature. The control panel will not permit the IceBuilding mode to be entered again until the unit is

switched to the non-ice building mode and back intothe ice building mode. It is not acceptable to reset thechilled water setpoint low to achieve a fully loadedcompressor. When entering ice building, thecompressor will be loaded at its maximum rate andwhen leaving ice building, the compressor will beunloaded at its maximum rate. While loading andunloading the compressor, all surge detection will beignored. While in the ice building mode, current limitsetpoints less than the maximum will be ignored. IceBuilding can be terminated by one of the followingmeans:

• Front panel disable

• Opening the external ice contacts/remote-communicated input (BAS)

• Satisfying an evaporator entering fluid temperaturesetpoint (default is 27°F [-2.8°C])

• Surging for seven minutes at full open inlet guidevanes (IGV)


CVHE-SVX02M-EN 77

Figure 56. Sequence of operation: ice making: running to ice making


78 CVHE-SVX02M-EN

Figure 57. Sequence of operation: ice making: stopped to ice to ice building complete

Free Cooling CycleBased on the principle that refrigerant migrates to thecoldest area in the system, the free cooling optionadapts the basic chiller to function as a simple heatexchanger. However, it does not provide control of theleaving chilled water temperature.

If condenser water is available at a temperature lowerthan the required leaving chilled water temperature,the operator interface must remain in AUTO and theoperator starts the free cooling cycle by enabling theFree Cooling mode in the Tracer® AdaptiView™Feature Settings group of the operator interface, or bymeans of a BAS request. The following componentsmust be factory- or field-installed to equip the unit forfree cooling operation:

• a refrigerant gas line, and electrically-actuatedshutoff valve, between the evaporator andcondenser,

• a valved liquid return line, and electrically-actuatedshutoff valve, between the condenser sump and theevaporator,

• a liquid refrigerant storage vessel (largereconomizer), and

• additional refrigerant.

When the chiller is changed over to the free coolingmode, the compressor will shut down if running andthe shutoff valves in the liquid and gas lines open; unitcontrol logic prevents the compressor from energizingduring free cooling. Liquid refrigerant then drains (bygravity) from the storage tank into the evaporator andfloods the tube bundle. Since the temperature andpressure of the refrigerant in the evaporator are higherthan in the condenser (i.e., because of the difference inwater temperature), the refrigerant in the evaporatorvaporizes and travels to the condenser, cooling towerwater causes the refrigerant to condense on thecondenser tubes, and flow (again, by gravity) back tothe evaporator.

This compulsory refrigerant cycle is sustained as longas a temperature differential exists between condenserand evaporator water. The actual cooling capacityprovided by the free cooling cycle is determined by thedifference between these temperatures which, in turn,determines the rate of refrigerant flow between theevaporator and condenser shells.

If the system load exceeds the available free coolingcapacity, the operator must manually initiatechangeover to the mechanical cooling mode bydisabling the free cooling mode of operation. The gasand liquid line valves then close and compressoroperation begins (refer to Figure 51, p. 73, beginning at


CVHE-SVX02M-EN 79

Auto mode). Refrigerant gas is drawn out of theevaporator by the compressor, where it is thencompressed and discharged to the condenser. Most ofthe condensed refrigerant initially follows the path ofleast resistance by flowing into the storage tank. Thistank is vented to the economizer sump through a smallbleed line; when the storage tank is full, liquidrefrigerant must flow through the bleed line restriction.Because the pressure drop through the bleed line isgreater than that of the orifice flow control device, theliquid refrigerant flows normally from the condenserthrough the orifice system and into the economizer.

Free Cooling (FRCL)To enable Free Cooling mode:

1. Install and commission Free Cooling.

2. Enable the Free Cooling mode in the Tracer®AdaptiView™ Settings menu.

3. Press AUTO, and if used, close the external binaryinput switch (connected to 1A20 J2-1 to 2) while thechiller is in AUTO.

NNoottee:: Free Cooling cannot be entered if the chiller is in“STOP”.

If the chiller is in AUTO and not running, the condenserwater pump will start. After condenser water flow isproven, Relay Module 1A11 will energize operating theFree Cooling Valves 4B12 and 4B13. The Free CoolingValves End Switches must open within 3 minutes, or anMMR diagnostic will be generated. Once the FreeCooling Valves End Switches open, the unit is in theFree Cooling mode. If the chiller is in AUTO andrunning powered cooling, the chiller will initiate afriendly shut down first (Run: Unload, Post Lube, anddrive vanes closed). After the vanes have beenoverdriven closed and condenser water flow proven,the Free Cooling relays will be energized. To disableFree Cooling and return to Powered Cooling, eitherdisable the Free Cooling Mode in the Tracer®AdaptiView™ Settings menu if used to enable FreeCooling, or OPEN the external binary input switch tothe 1A20 Module if it was used to enable Free Cooling.Once Free Cooling is disabled, the Free Cooling relaysRelay Module 1A11 will de-energize allowing the FreeCooling valves to close. The Free Cooling valves’ endswitches must close within 3 minutes or an MMRdiagnostic is generated. After the end switches close,the chiller will return to AUTO and powered coolingwill resume if there is a call for cooling based on thedifferential to start.

NNootteess::

• The manual control of the inlet guide vanesis disabled while in the Free Cooling modeand the compressor is prevented fromstarting by the control logic.

• The relay at 1A11-J2-4 to 6 is a FC auxiliaryrelay and can be used as required.

Hot Gas Bypass (HGBP)The hot gas bypass (HGBP) control option is designedto minimize machine cycling by allowing the chiller tooperate stably under minimum load conditions. Inthese situations, the inlet guide vanes are locked at apreset minimum position, and unit capacity isgoverned by the HGBP valve actuator. Control circuitryis designed to allow both the inlet guide vanes and theHGBP valve to close for unit shut-down. After a chillerstarts and is running, the inlet guide vanes will passthrough the HGBP Cut-In-Vane position as the chillerstarts to load. As the chiller catches the load and startsto unload, the inlet guide vanes will close to the HotGas Bypass Cprsr Ctrl Command position. At this point,the movement of the inlet guide vanes is stopped andfurther loading/unloading of the chiller is controlled bythe opening/closing of the HGBP Valve (4M5). Whenthe control algorithm determines the chiller to be shutdown, the inlet guide vanes will be driven fully closedand the HGBP valve will be driven closed. After theinlet guide vanes are fully closed, the chiller will shutdown in the Friendly mode. Chillers with HGBP have adischarge temperature sensor (4R16) monitoring thedischarge gas temperature from the compressor. If thistemperature exceeds the High Cprsr Rfgt DischargeTemp Cutout 200°F (93.3°C) default, the chiller will shutoff on a MAR diagnostic. The chiller will resetautomatically when this temperature drops 50°F (10.0°C) below the trip-point. HGBP is enabled in the FeaturesMenu Settings group of the Tracer® AdaptiView™menus by enabling the option. The setting of the HGBPCut-In Vane Position is set-up at unit commissioningvia the service tool.

Hot Water ControlOccasionally, CenTraVac™ chillers are selected toprovide heating as a primary mission. With hot watertemperature control, the chiller can be used as aheating source or cooling source. This feature providesgreater application flexibility. In this case, the operatorselects a hot water temperature and the chiller capacityis modulated to maintain the hot water setpoint.Heating is the primary mission and cooling is a wasteproduct or is a secondary mission. This type ofoperation requires an endless source of evaporatorload (heat), such as well or lake water. The chiller hasonly one condenser.

NNoottee:: Hot Water Temperature Control mode does NOTconvert the chiller to a heat pump. Heat pumprefers to the capability to change from a cooling-driven application to a heating-driven applicationby changing the refrigerant path on the chiller.This is impractical for centrifugal chillers as itwould be much easier to switch over the waterside.

This is NOT heat recovery. Although this feature couldbe used to recover heat in some form, a heat recovery


80 CVHE-SVX02M-EN

unit has a second heat exchanger on the condenserside.

The Tracer® AdaptiView™ provides the Hot WaterTemperature Control mode as standard. The leavingcondenser water temperature is controlled to a hotwater setpoint between 80°F and 140°F (26.7°C and60.0°C). The leaving evaporator water temperature isleft to drift to satisfy the heating load of the condenser.In this application, the evaporator is normally pipedinto a lake, well, or other source of constanttemperature water for the purpose of extracting heat.In Hot Water Temperature Control mode, all the limitmodes and diagnostics operate as in normal coolingwith one exception: the leaving condenser watertemperature sensor is an MMR diagnostic when in HotWater Temperature Control mode. (It is aninformational warning in the Normal Cooling mode.)

In the Hot Water Temperature Control mode, thedifferential-to-start and differential-to-stop setpointsare used with respect to the hot water setpoint insteadof with the chilled water setpoint. The control panelprovides a separate entry at the Tracer® AdaptiView™to set the hot water setpoint; Tracer® AdaptiView™ isalso able to set the hot water setpoint. In the Hot Watermode, the external chilled water setpoint is the externalhot water setpoint; that is, a single analog input isshared at the 1A16-J2-5 to 6 (ground).

An external binary input to select external Hot WaterControl mode is on the EXOP OPTIONAL module 1A18terminals J2-3 to J2-4 (ground). Tracer® AdaptiView™also has a binary input to select chilled water control orhot water temperature control. There is no additionalleaving hot water temperature cutout; the HPC andcondenser limit provide for high temperature andpressure protection.

In Hot Water Temperature Control, the softloadingpulldown rate limit operates as a softloading pulluprate limit. The setpoint for setting the temperature ratelimit is the same setpoint for normal cooling as it is forhot water temperature control. The hot watertemperature control feature is not designed to run withHGBP, AFD, free cooling, or ice making.

The factory set PID tuning values for the leaving watertemperature control are the same settings for bothnormal cooling and hot water temperature control.

Heat Recovery CycleHeat recovery is designed to salvage the heat that isnormally rejected to the atmosphere through thecooling tower and put it to beneficial use. For example,a high-rise office building may require simultaneousheating and cooling during the winter months. With theaddition of a heat recovery cycle, heat removed fromthe building cooling load can be transferred to areas ofthe building that require heat.

NNoottee:: The heat recovery cycle is possible only if acooling load exists to act as a heat source.

To provide a heat recovery cycle, a heat-recoverycondenser is added to the unit. Though physicallyidentical to the standard cooling condenser, the heat-recovery condenser is piped into a heat circuit ratherthan to the cooling tower. During the heat recoverycycle, the unit operates just as it does in the coolingonly mode except that the cooling load heat is rejectedto the heating water circuit rather than to the coolingtower water circuit. When hot water is required, theheating water circuit pumps energize. Water circulatedthrough the heat-recovery (or auxiliary) condenser tubebundle by the pumps absorbs cooling load from thecompressed refrigerant gas discharged by thecompressor. The heated water is then used to satisfyheating requirements.

Auxiliary CondensersUnlike the heat-recovery condenser (which is designedto satisfy comfort heating requirements), the auxiliarycondenser serves a preheat function only and is used inthose applications where hot water is needed for use inkitchens, lavatories, etc. While the operation of theauxiliary condenser is physically identical to that of theheat-recovery condenser, it is comparatively smaller insize and its heating capacity is not controlled. Tranedoes not recommend operating the auxiliarycondenser alone because of its small size.

Control Panel Devices and Unit-Mounted DevicesUnit Control PanelSafety and operating controls are housed in the unitcontrol panel, the starter panel, and the purge controlpanel. The control panel operator interface and UC800is called Tracer® AdaptiView™ and is located on anadjustable arm connected to the base of the controlpanel. For more information about operating Tracer®AdaptiView™, refer to Tracer AdaptiView Display forWater-Cooled CenTraVac Chillers Operations Guide(CTV-SVU01*-EN).

The control panel houses several other controlsmodules called panel-mounted Low Level IntelligentDevices (LLIDs), power supply, terminal block, fuse,circuit breakers, and transformer. The inter-processorcommunication (IPC) bus allows the communicationsbetween LLIDs and the UC800. Unit-mounted devicesare called frame-mounted LLIDs and can betemperature sensors or pressure transducers. Theseand other functional switches provide analog andbinary inputs to the control system.

User-Defined Language SupportTracer® AdaptiView™ is capable of displaying Englishtext or any of 26 other languages. Switching languagesis simply accomplished from a Language Settingsmenu. The following languages are available:


CVHE-SVX02M-EN 81

• Arabic (Gulf Regions)

• Chinese—China

• Chinese—Taiwan

• Czech

• Dutch

• English

• French

• French (Canada)

• German

• Greek

• Hebrew

• Hungarian

• Indonesian

• Italian

• Japanese

• Korean

• Norwegian

• Polish

• Portuguese (Portugal)

• Portuguese (Brazil)

• Russian

• Romanian

• Spanish (Europe)

• Spanish (Latin America)

• Swedish

• Thai

Unit Start-up and Shut-downProcedures

WWAARRNNIINNGGLLiivvee EElleeccttrriiccaall CCoommppoonneennttss!!FFaaiilluurree ttoo ffoollllooww aallll eelleeccttrriiccaall ssaaffeettyy pprreeccaauuttiioonnsswwhheenn eexxppoosseedd ttoo lliivvee eelleeccttrriiccaall ccoommppoonneennttss ccoouullddrreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..WWhheenn iitt iiss nneecceessssaarryy ttoo wwoorrkk wwiitthh lliivvee eelleeccttrriiccaallccoommppoonneennttss,, hhaavvee aa qquuaalliiffiieedd lliicceennsseedd eelleeccttrriicciiaannoorr ootthheerr iinnddiivviidduuaall wwhhoo hhaass bbeeeenn pprrooppeerrllyy ttrraaiinneeddiinn hhaannddlliinngg lliivvee eelleeccttrriiccaall ccoommppoonneennttss ppeerrffoorrmmtthheessee ttaasskkss..

WWAARRNNIINNGGTTooxxiicc HHaazzaarrddss!!AA ssiiggnniiffiiccaanntt rreelleeaassee ooff rreeffrriiggeerraanntt iinnttoo aa ccoonnffiinneeddssppaaccee dduuee ttoo aa rruuppttuurree ddiisskk ffaaiilluurree ccoouulldd ddiissppllaacceeaavvaaiillaabbllee ooxxyyggeenn ttoo bbrreeaatthhee aanndd ccaauussee ppoossssiibblleeaasspphhyyxxiiaattiioonn.. FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeelloowwccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..SShhoouulldd aa rruuppttuurree ddiisskk ffaaiill,, eevvaaccuuaattee tthhee aarreeaaiimmmmeeddiiaatteellyy aanndd ccoonnttaacctt tthhee aapppprroopprriiaattee rreessccuuee oorrrreessppoonnssee aauutthhoorriittyy..WWhhiillee tthhee uunniitt iiss ooffff,, ddoo nnoott aallllooww tthhee cchhiilllleerr ttooeexxcceeeedd 111100°°FF ((4433..33°°CC)) ffoorr mmooddeellss CCDDHHFF,, CCDDHHGG,,CCVVHHEE,, CCVVHHFF,, CCVVHHGG,, CCVVHHSS,, oorr CCVVHHLL oorr aabboovvee 113300°°FF((5544..44°°CC)) ffoorr mmooddeellss CCDDHHHH aanndd CCVVHHHH.. FFaaiilluurree ttoopprreevveenntt hhiigghh cchhiilllleerr tteemmppeerraattuurree wwiillll ccaauussee tthheeiinnssiiddee pprreessssuurree ttoo rriissee::•• DDoo nnoott rruunn eevvaappoorraattoorr wwaatteerr ppuummpp lloonnggeerr tthhaann3300 mmiinnuutteess aafftteerr tthhee cchhiilllleerr iiss sshhuutt ddoowwnn..•• EEnnssuurree tthhaatt tthhee eevvaappoorraattoorr iiss iissoollaatteedd ffrroomm tthheehhoott wwaatteerr lloooopp bbeeffoorree cchhaannggeeoovveerr ttoo hheeaattiinnggmmooddee..TThhee rruuppttuurree ddiisskk iiss ddeessiiggnneedd ttoo rreelliieevvee aannddddiisscchhaarrggee tthhee rreeffrriiggeerraanntt ffrroomm tthhee uunniitt iiff tthheepprreessssuurree iinn tthhee eevvaappoorraattoorr eexxcceeeeddss 1155 ppssiigg ((110033..44kkPPaaGG)) ffoorr mmooddeellss CCDDHHFF,, CCDDHHGG,, CCVVHHEE,, CCVVHHFF,,CCVVHHGG,, CCVVHHSS,, oorr CCVVHHLL oorr 5500 ppssiigg ((334444..77 kkPPaaGG)) ffoorrmmooddeellss CCDDHHHH aanndd CCVVHHHH..

Daily Unit Start-up1. Verify the chilled water pump and condenser water

pump starter are in ON or AUTO.

2. Verify the cooling tower is in ON or AUTO.

3. Check the oil tank oil level; the level must be visiblein or above the lower sight glass. Also, check the oiltank temperature; normal oil tank temperaturebefore start-up is 140°F to 145°F (60.0°C to 62.8°C).

NNootteess::

• The oil heater is energized during thecompressor off cycle. During unitoperation, the oil tank heater may be de-energized.

• If the chiller is equipped with the freecooling option, ensure that the freecooling option is disabled in the ChillerSettings menu.

4. Check the chilled water setpoint and readjust it, ifnecessary, in the Chiller Settings menu.

5. If necessary, readjust the current limit setpoint inthe Chiller Setpoints menu.

6. Press AUTO.

The control panel also checks compressor motorwinding temperature and a start is initiated after aminimum restart inhibit time if the windingtemperature is less than 265°F (129.4°C). The chilledwater pump relay is energized and evaporator water


82 CVHE-SVX02M-EN

flow is proven. Next, the control panel checks theleaving evaporator water temperature and compares itto the chilled water setpoint. If the difference betweenthese values is less than the start differential setpoint,cooling is not needed.

If the control panel determines that the differencebetween the evaporator leaving water temperature andchilled water setpoint exceeds the start differentialsetpoint, the unit enters the initiate Start Mode and theoil refrigerant pump and the condenser water pumpare started. If flow is not initially established within4 minutes 15 seconds of the condenser pump relayenergization, an automatically resetting diagnostic“Condenser Water Flow Overdue” shall be generated,which terminates the prestart mode and de-energizesthe condenser water pump relay. This diagnostic isautomatically reset if flow is established at any latertime.

NNoottee:: This diagnostic does NOT automatically reset ifTracer® AdaptiView™ is in control of thecondenser pump through its condenser pumprelay, since it is commanded off at the time ofthe diagnostic. It may reset and allow normalchiller operation if the pump was controlled fromsome external source.

When less than 5 seconds remain on the restart inhibit,the pre-start starter test is conducted on wye-deltastarters. If faults are detected, the unit’s compressorwill not start and a diagnostic will be generated. If thecompressor motor starts and accelerates successfully,Running appears on the display. If the purge is set toAUTO, the purge will start running and will run as longas the chiller is running.

NNoottee:: If a manual reset diagnostic condition is detectedduring start-up, unit operation will be locked outand a manual reset is required before the start-up sequence can begin again. If the faultcondition has not cleared, the control panel willnot permit restart.

When the cooling requirement is satisfied, the controlpanel originates a Shutting down signal. The inletguide vanes are driven closed for 50 seconds, thecompressor stops, and the unit enters a 3-minute post-lube period. The evaporator pump may continue to runfor the amount of time set using Tracer® AdaptiView™.

After the post-lube cycle is done, the unit returns toauto mode.

Seasonal Unit Start-up1. Close all drain valves, and reinstall the drain plugs

in the evaporator and condenser headers.

2. Service the auxiliary equipment according to thestart-up and maintenance instructions provided bythe respective equipment manufacturers.

3. Fill and vent the cooling tower, if used, as well asthe condenser and piping. At this point, all air mustbe removed from the system (including each pass).Then, close the vents in the condenser waterboxes.

4. Open all of the valves in the evaporator chilledwater circuit.

5. If the evaporator was previously drained, fill andvent the evaporator and chilled water circuit. Afterall air is removed from the system (including eachpass), close the vent valves in the evaporatorwaterboxes.

6. Lubricate the external vane control linkage asneeded.

7. Check the adjustment and operation of each safetyand operating control.

8. Close all disconnect switches.

9. Perform instructions listed in “Daily Unit Start-up,” p. 81.

Daily Unit Shut-downNNoottee:: Also refer to Figure 53, p. 74.

1. Press STOP.

2. After compressor and water pumps shut down, theoperator may turn Pump Contactors to OFF or openpump disconnects.

Seasonal Unit Shut-downIImmppoorrttaanntt:: Control power disconnect switch must

remain closed to allow oil sump heateroperation. Failure to do this will allowrefrigerant to condense in the oil pump.

1. Open all disconnect switches except the controlpower disconnect switch.

2. Drain the condenser piping and cooling tower, ifused. Rinse with clean water.

3. Remove the drain and vent plugs from thecondenser headers to drain the condenser. Air-drybundle of residual water.

4. Once the unit is secured for the season, themaintenance procedures described Table 22, p. 84and Table 23, p. 85 should be performed byqualified Trane service technicians.

NNoottee:: During extended shut-down periods, be sure tooperate the purge unit for a two-hour periodevery two weeks. This will prevent theaccumulation of air and non-condensables in themachine. To start the purge, change the purgemode to ON in the unit control “Settings Purge”menu. Remember to turn the purge mode to“Adaptive” after the two-hour run time.


CVHE-SVX02M-EN 83

Recommended MaintenanceWWAARRNNIINNGG

HHaazzaarrddoouuss VVoollttaaggee ww//CCaappaacciittoorrss!!FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr aanndd ddiisscchhaarrggeeccaappaacciittoorrss bbeeffoorree sseerrvviicciinngg ccoouulldd rreessuulltt iinn ddeeaatthh oorrsseerriioouuss iinnjjuurryy..DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmootteeddiissccoonnnneeccttss aanndd ddiisscchhaarrggee aallll mmoottoorr ssttaarrtt//rruunnccaappaacciittoorrss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerrlloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerrccaannnnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. FFoorr vvaarriiaabblleeffrreeqquueennccyy ddrriivveess oorr ootthheerr eenneerrggyy ssttoorriinnggccoommppoonneennttss pprroovviiddeedd bbyy TTrraannee oorr ootthheerrss,, rreeffeerr ttootthhee aapppprroopprriiaattee mmaannuuffaaccttuurreerr’’ss lliitteerraattuurree ffoorraalllloowwaabbllee wwaaiittiinngg ppeerriiooddss ffoorr ddiisscchhaarrggee ooffccaappaacciittoorrss.. VVeerriiffyy wwiitthh aann aapppprroopprriiaattee vvoollttmmeetteerrtthhaatt aallll ccaappaacciittoorrss hhaavvee ddiisscchhaarrggeedd..FFoorr aaddddiittiioonnaall iinnffoorrmmaattiioonn rreeggaarrddiinngg tthhee ssaaffeeddiisscchhaarrggee ooff ccaappaacciittoorrss,, sseeee PPRROODD--SSVVBB0066**--EENN..

NNOOTTIICCEECChheecckk PPuurrggee RRuunn--TTiimmee ffoorr UUnniittHHeerrmmeettiicc IInntteeggrriittyy!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinncchhiilllleerr ddaammaaggee..IIff ffrreeqquueenntt ppuurrggiinngg iiss rreeqquuiirreedd,, mmoonniittoorr ppuurrggeeppuummppoouutt rraattee,, aanndd iiddeennttiiffyy aanndd ccoorrrreecctt ssoouurrccee ooffaaiirr oorr wwaatteerr lleeaakk aass ssoooonn aass ppoossssiibbllee ttoo pprreevveennttmmooiissttuurree ccoonnttaammiinnaattiioonn ccaauusseedd bbyy lleeaakkaaggee..

NNOOTTIICCEEDDoo NNoott UUssee NNoonn--CCoommppaattiibbllee PPaarrttss oorrMMaatteerriiaallss!!UUssee ooff nnoonn--ccoommppaattiibbllee ppaarrttss oorr mmaatteerriiaallss ccoouullddrreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee..OOnnllyy ggeennuuiinnee TTrraannee®® rreeppllaacceemmeenntt ccoommppoonneennttsswwiitthh iiddeennttiiccaall TTrraannee ppaarrtt nnuummbbeerrss sshhoouulldd bbee uusseeddiinn TTrraannee CCeennTTrraaVVaacc cchhiilllleerrss.. TTrraannee aassssuummeess nnoorreessppoonnssiibbiilliittyy ffoorr ddaammaaggeess rreessuullttiinngg ffrroomm tthhee uusseeooff nnoonn--ccoommppaattiibbllee ppaarrttss oorr mmaatteerriiaallss..

This section describes the basic chiller preventivemaintenance procedures, and recommends theintervals at which these procedures should beperformed. Use of a periodic maintenance program isimportant to ensure the best possible performance andefficiency from a CenTraVac™ chiller.

For R-123 chillers, recommended purge maintenanceprocedures are detailed in Operation and MaintenanceGuide: EarthWise Purge System with TracerAdaptiView Control for Water-Cooled CenTraVacChillers with R-123 Refrigerant (PRGD-SVX01*-EN). ForR-514A chillers, recommended purge maintenanceprocedures are detailed in Operation and MaintenanceGuide: Purge System with Tracer AdaptiView Controlfor Water-Cooled CenTraVac Chillers with R-514ARefrigerant (PRGE-SVX001*-EN).

Record Keeping FormsAn important aspect of the chiller maintenanceprogram is the regular completion of records. Refer to“Forms and Check Sheets,” p. A–1 for copies of therecommended forms. When filled out accurately by themachine operator, the completed logs can be reviewedto identify any developing trends in the chiller’soperating conditions. For example, if the machineoperator notices a gradual increase in condensingpressure during a month’s time, she can systematicallycheck and then correct the possible cause of thiscondition.

Normal OperationTable 21. Normal operation

Operating Characteristic Normal ReadingApproximate EvaporatorPressure

6 to 9 psia (41.4 to 62.1 kPaA) /-9 to -6 psig (-62.1 to -41.4 kPaG)

Approximate CondenserPressure(a) , (b)

17 to 27 psia (117.2 to 182.2 kPaA) /2 to 12 psig (13.8 to 82.7 kPaG)(standard condenser)

Oil Sump TemperatureUnit not running 140°F to 176°F (60.0°C to 80.0°C)

Oil Sump TemperatureUnit running 95°F to 162°F (35.0°C to 72.2°C)

Oil Sump DifferentialOil Pressure(c) 18 to 22 psid (124.1 to 151.7 kPaD)

Table 21. Normal operation (continued)(a) Condenser pressure is dependent on condenser water temperature,

and should equal the saturation pressure of the refrigerant at atemperature above that of leaving condenser water at full load.

(b) Normal pressure readings for ASME condenser exceed 12 psig(82.7 kPaG).

(c) Oil tank pressure: -9 to -6 psig (-62.1 to -41.4 kPaG). Discharge oilpressure: 7 to 15 psig (48.3 to 103.4 kPaG).

84 CVHE-SVX02M-EN

NNOOTTIICCEEEEqquuiippmmeenntt DDaammaaggee!!FFaaiilluurree ttoo rreemmoovvee tthhee ssttrraaiinn rreelliieeff wwiitthh tthhee sseennssoorrccoouulldd rreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee..DDoo NNOOTT aatttteemmpptt ttoo ppuullll sseennssoorr bbuullbb tthhrroouugghh tthheessttrraaiinn rreelliieeff;; aallwwaayyss rreemmoovvee tthhee eennttiirree ssttrraaiinn rreelliieeffwwiitthh tthhee sseennssoorr..

Table 22. Recommended maintenance

Daily Every 3months Every 6months Annually(a) , (b)

Check the chiller’s evaporator andcondenser pressures, oil tankpressure, differential oil pressure,and discharge oil pressure.Compare the readings with thevalues provided in the precedingtable.Check the oil level in the chiller oilsump using the two sight glassesprovided in the oil sump head.When the unit is operating, the oillevel should be visible in the lowersight glass.

Complete logs on a daily basis.

Clean all water strainers in thewater piping system.

Lubricate the vane control linkagebearings, ball joints, and pivotpoints.Lubricate vane operator tang O-rings.Operate the tang operatorsmanually and check for anyabnormalities.Lubricate the oil filter shutoff valveO-rings.Drain contents of the rupture diskand purge discharge vent-linedrip-leg into an evacuated wastecontainer. Do this more often if thepurge is operated excessively.Apply oil to any exposed metalparts to prevent rust.

Shut down the chiller once each year to check theitems listed on the “CVHE, CVHF, and CVHGCenTraVac™ Chiller Annual Inspection List,” p. D–1 (refer to “Forms and Check Sheets,” p. A–1).For R-123 chillers, perform the annualmaintenance procedures referred to in Operationand Maintenance Guide: EarthWise Purge Systemwith Tracer AdaptiView Control for Water-CooledCenTraVac Chillers with R-123 Refrigerant(PRGD-SVX01*-EN). For R-514A chillers, performthe annual maintenance procedures referred to inOperation and Maintenance Guide: Purge Systemwith Tracer AdaptiView Control for Water-CooledCenTraVac Chillers with R-514A Refrigerant(PRGE-SVX001*-EN).Use an ice water bath to verify the accuracy of theevaporator refrigerant temperature sensor(4R10). If the sensor is exposed to temperatureextremes outside its normal operating range (0°Fto 90°F [-17.8°C to 32.2°C]), check its accuracyat six-month intervals.Inspect the condenser tubes for fouling; clean ifnecessary.Inspect and clean the ifm efector® flow detectionsensors. Use Scotch-Brite® or other non-abrasivematerial to clean scale; do NOTuse steel wool,which could cause the probe to rust.

RReeccoommmmeennddeedd MMaaiinntteennaannccee

CVHE-SVX02M-EN 85

Table 22. Recommended maintenance (continued)

Daily Every 3months Every 6months Annually(a) , (b)

Submit a sample of the compressor oil to a Trane-qualified laboratory for comprehensive analysis.Measure the compressor motor windingresistance to ground; a qualified servicetechnician should conduct this check to ensurethat the findings are properly interpreted. Contacta qualified service organization to leak-test thechiller; this procedure is especially important ifthe system requires frequent purging.

(a) Every three years, use a non-destructive tube test to inspect the condenser and evaporator tubes. It may be desirable to perform tube tests on thesecomponents at more frequent intervals depending upon chiller application. This is especially true of critical process equipment.

(b) Contact a qualified service organization to determine when to conduct a complete examination of the unit to discern the condition of the compressor andinternal components. Check the following: chronic air leaks (which can cause acidic conditions in the compressor oil and result in premature bearing wear)and evaporator or condenser water tube leaks (water mixed with the compressor oil can result in bearing pitting, corrosion, or excessive wear).

Table 23. Recommended maintenance of optional features

Feature Every 3months Every 6months Annually

Waterbox Coatings

Inspect waterbox coatings within thefirst 1–3 months to determine arequired maintenance schedule for yourjob site. Refer to “Waterbox andTubesheet Protective Coatings,” p. 88for more information.

Waterbox Anodes

Inspect waterbox anodes within the first1–3 months to determine a requiredmaintenance schedule for your job site.Refer to “Sacrificial Anodes,” p. 88 formore information.

GantriesLubricate the gantries annually. Use ConocoPhillipsMegaPlex® XD3 (gray in color), LPS®MultiPlex Multi-Purpose (blue in color), or equivalent.

HingesLubricate the hinges annually. Use ConocoPhillipsMegaPlex® XD3 (gray in color), LPS®MultiPlex Multi-Purpose (blue in color), or equivalent.

Recommended Compressor OilChange


This manual applies to CenTraVac™ chillers with twodifferent refrigerant and oil systems:

• R-123 and OIL00022

• R-514A and OIL00334/OIL00335


After the first six months of accumulated operation orafter 1000 hours operation—whichever comes first—it

is recommended to change the oil and filter. After thisoil change, it is recommended to subscribe to the Traneannual oil analysis program rather than automaticallychange the oil as part of scheduled maintenance.Change the oil only if indicated by the oil analysis.Using an oil analysis program will reduce the chiller’soverall lifetime waste oil generation and minimizerefrigerant emissions. The analysis determines systemmoisture content, acid level, and wear metal content ofthe oil, and can be used as a diagnostic tool. The oilanalysis should be performed by a qualified laboratorythat is experienced in refrigerant and oil chemistry andin the servicing of Trane® centrifugal chillers.

In conjunction with other diagnostics performed by aqualified service technician, oil analyses can providevaluable information on the performance of the chillerto help minimize operating and maintenance costs andmaximize its operating life. A valve is installed next tothe oil filter for the purpose of obtaining oil samples.


86 CVHE-SVX02M-EN

NNootteess::

• Use only Trane oil and verify properrefrigerant and oil for your chiller beforeproceeding! A full oil change is 9 gallons(34.1 L) of oil.

– For R-123 chillers, use OIL00022(2.5 gallon [9.5 L] containers).

– For R-514A chillers, use OIL00334(1 gallon [3.8 L] containers)/OIL00335(5 gallon [18.9 L] containers).

• One spare oil filter is provided with eachnew chiller. If not used earlier, use at firstrecommended oil and filter change.

• This recommended oil change is NOTcovered by factory warranty.

Purge SystemThe use of low-pressure refrigerant in CenTraVac™chillers permits any section of the unit to be belowatmospheric pressure, regardless of whether the unit isrunning. This creates an environment in which air ormoisture could enter the unit. If these non-condensables are allowed to accumulate while thechiller is running, they become trapped in thecondenser; this situation increases condensingpressure and compressor power requirements, andreduces the chiller’s efficiency and cooling capacity.Therefore, proper maintenance of the purge system isrequired.

The purge is designed to remove non-condensablegases and water from the refrigeration system. For R-123 chillers, purge operation, maintenance, andtroubleshooting procedures are detailed in Operationand Maintenance Guide: EarthWise Purge System withTracer AdaptiView Control for Water-CooledCenTraVac Chillers with R-123 Refrigerant (PRGD-SVX01*-EN). For R-514A chillers, purge operation,maintenance, and troubleshooting procedures aredetailed in Operation and Maintenance Guide: PurgeSystem with Tracer AdaptiView Control for Water-Cooled CenTraVac Chillers with R-514A Refrigerant(PRGE-SVX001*-EN).

Leak Checking Based on Purge Pump OutTimeUse the following formula to calculate the annualrefrigerant leakage rate based on the daily purgepump-out time and the unit refrigerant charge.

Formula: % annual leakage rate = [(X min/day)*(0.0001 lb of refrigerant/min)/(Y lb)]*100

• X = minutes/day of purge pump out operation

• Y = initial refrigerant charge

The following figure has been developed to aid indetermining when to do a leak check of a chiller basedon the purge pump-out time and unit size. This figure

depicts normal purge pump-out times, small leaks, andlarge leaks based on chiller tonnage.

If the purge pump-out time is in the small leak region,then a leak check should be performed and all leaksrepaired at the earliest convenience. If the purge pump-out time is in the large leak region, a thorough leakcheck of the unit should be performed immediately tofind and fix the leaks.

Figure 58. Purge operation under typical and leakconditions

Long Term Unit StorageIf the chiller will be stored for more than six monthsafter production, contact your local Trane ServiceAgency for required extended storage actions tominimize impact to the chiller and preserve thewarranty. In addition, contact your local Trane ServiceAgency for recommendations for storage requirementsfor chillers to be removed from service in excess of anormal seasonal shut-down.


NNOOTTIICCEECChhiilllleerr DDaammaaggee!!FFaaiilluurree ttoo eennssuurree tthhaatt wwaatteerr iiss nnoott pprreesseenntt iinn ttuubbeessdduurriinngg eevvaaccuuaattiioonn ccoouulldd rreessuulltt iinn ffrreeeezziinngg ttuubbeess,,ddaammaaggiinngg tthhee cchhiilllleerr..


CVHE-SVX02M-EN 87

Refrigerant Charge



This manual applies to CenTraVac™ chillers with twodifferent refrigerant and oil systems:

• R-123 and OIL00022

• R-514A and OIL00334/OIL00335


For R-123 chillers, refer to Installation, Operation, andMaintenance: R-123 Low-Pressure Refrigerant HandlingGuidelines Conservation and Safe Handling of R-123Refrigerant in Trane Chillers for Service Technicians(CTV-SVX05*-EN). For R-514A chillers, refer toInstallation, Operation, and Maintenance: R-514A Low-Pressure Refrigerant Handling Guidelines Conservationand Safe Handling of R-514A Refrigerant in TraneChillers for Service Technicians (CTV-SVX008*-EN).

Leak Testing

WWAARRNNIINNGGEExxpplloossiioonn HHaazzaarrdd!!FFaaiilluurree ttoo ffoollllooww ssaaffee lleeaakk tteesstt pprroocceedduurreess bbeelloowwccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy oorreeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy--ddaammaaggee..NNeevveerr uussee aann ooppeenn ffllaammee ttoo ddeetteecctt ggaass lleeaakkss.. UUssee aalleeaakk tteesstt ssoolluuttiioonn ffoorr lleeaakk tteessttiinngg..

WWAARRNNIINNGGHHaazzaarrddoouuss PPrreessssuurreess!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinnaa vviioolleenntt eexxpplloossiioonn,, wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorrsseerriioouuss iinnjjuurryy..IIff aa hheeaatt ssoouurrccee iiss rreeqquuiirreedd ttoo rraaiissee tthhee ttaannkkpprreessssuurree dduurriinngg rreemmoovvaall ooff rreeffrriiggeerraanntt ffrroommccyylliinnddeerrss,, uussee oonnllyy wwaarrmm wwaatteerr oorr hheeaatt bbllaannkkeettss ttoorraaiissee tthhee ttaannkk tteemmppeerraattuurree.. DDoo nnoott eexxcceeeedd aatteemmppeerraattuurree ooff 115500°°FF.. DDoo nnoott uunnddeerr aannyycciirrccuummssttaanncceess aappppllyy ddiirreecctt ffllaammee ttoo aannyy ppoorrttiioonn oofftthhee ccyylliinnddeerr..

IImmppoorrttaanntt:: If leak testing is required, contact a TraneService Agency.

Recommended SystemMaintenance

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..

CondenserCondenser tube fouling is indicated when the approachtemperature (the difference between the condensingrefrigerant temperature and the leaving condenserwater temperature) is higher than predicted.

If the annual condenser tube inspection indicates thatthe tubes are fouled, two cleaning methods—mechanical and chemical—can be used to rid the tubesof contaminants. Use the mechanical cleaning methodto remove sludge and loose material from smooth-boretubes.

To clean other types of tubes including internally-enhanced types, consult a qualified serviceorganization for recommendations.


88 CVHE-SVX02M-EN

Figure 59. Typical chemical cleaning setup

1. Follow all instructions in “Waterbox Removal andInstallation,” p. 89 to remove waterbox covers.

2. Work a round nylon or brass bristled brush(attached to a rod) in and out of each of thecondenser water tubes to loosen the sludge.

3. Thoroughly flush the condenser water tubes withclean water.

4. Scale deposits are best removed by chemicalmeans. Be sure to consult any qualified chemicalhouse in the area (one familiar with the local watersupply’s chemical mineral content) for arecommended cleaning solution suitable for thejob.

NNoottee:: A standard condenser water circuit iscomposed solely of copper, cast iron, andsteel.

NNOOTTIICCEEUUnniitt CCoorrrroossiioonn DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinnccoorrrroossiioonn ddaammaaggee ttoo tthhee uunniitt aanndd ttuubbeess..FFoollllooww pprrooppeerr pprroocceedduurreess wwhheenn uussiinngg ccoorrrroossiivveecchheemmiiccaallss ttoo cclleeaann wwaatteerr ssiiddee ooff uunniitt.. IIff uunnssuurree,, iittiiss rreeccoommmmeennddeedd tthhaatt tthhee sseerrvviicceess ooff aa qquuaalliiffiieeddcchheemmiiccaall cclleeaanniinngg ffiirrmm bbee uusseedd..

IImmppoorrttaanntt:: All of the materials used in the externalcirculation system, the quantity of thesolution, the duration of the cleaningperiod, and any required safety precautionsshould be approved by the companyfurnishing the materials or performing thecleaning. Remember, however, thatwhenever the chemical tube cleaningmethod is used, it must be followed upwith mechanical tube cleaning, flushing,and inspection.

EvaporatorSince the evaporator is typically part of a closed circuit,it may not accumulate appreciable amounts of scale orsludge. Normally, cleaning every three years issufficient. However, periodic inspection and cleaning isrecommended on open evaporator systems, such as airwashers.

Waterbox and Tubesheet ProtectiveCoatingsTrane recommends that coated waterboxes/tubesheets—regardless of the type of protective coating included—be taken out of service within the first one to threemonths of operation for inspection. Any voids ordefects identified upon inspection must be repaired. Ifthe water quality is known to be highly supportive ofcorrosion (i.e., sea water, etc.), inspect the coatingsystem at one month; if the water quality is known tobe relatively benign (i.e., normal treated and cleancondenser water), inspect the coating system withinthree months. Only when initial inspections show noproblems are present should subsequent maintenanceintervals be increased.

Sacrificial AnodesThe replacement schedule for the optional zinc ormagnesium anodes can vary greatly with theaggressiveness of the water that is in the system. Somesites could require anode replacement every two tothree months while other sites may require anodereplacement every two to three years. Tranerecommends inspection of anodes for wear sometimewithin the first several months of the anodes beingplaced into service. If the observed loss of anodematerial is small, then the interval between subsequentinspections can be lengthened. Replace the anode and/or shorten the inspection interval if the anode has lost50 percent or more of its original mass. If anodedepletion occurs very quickly, consult a watertreatment specialist to determine if the anode materialselected is correct for the application.

NNOOTTIICCEEEEqquuiippmmeenntt DDaammaaggee!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinneeqquuiippmmeenntt ddaammaaggee..DDoo NNOOTT uussee TTeefflloonn--bbaasseedd ttaappee oorr ppaassttee oonn aannooddee;;aa ssmmaallll aammoouunntt ooff lliiqquuiidd sseeaallaanntt ((LLooccttiittee®® 224422 oorreeqquuiivvaalleenntt)) mmaayy bbee aapppplliieedd ttoo pprreevveenntt lleeaakkaaggeewwhheenn iinnssttaalllliinngg aann aannooddee,, bbuutt ddoo nnoott aappppllyy ssoommuucchh sseeaallaanntt tthhaatt iitt pprreevveennttss tthhee nneecceessssaarryyeelleeccttrriiccaall ccoonnnneeccttiioonn bbeettwweeeenn tthhee aannooddee aanndd tthheewwaatteerrbbooxx..

As needed after draining the waterbox, use a 2-1/2 in.(63.5 mm) wrench to remove/install Trane-suppliedwaterbox anodes.


CVHE-SVX02M-EN 89

Waterbox Removal and InstallationIImmppoorrttaanntt:: Only qualified technicians should perform

the installation and servicing of thisequipment.

DiscussionThis section will discuss recommended hoist ring/clevises and lifting. Proper lifting technique will varybased on mechanical room layout.

• It is the responsibility of the person(s) performingthe work to be properly trained in the safe practiceof rigging, lifting, securing, and fastening of thewaterbox.

• It is the responsibility of the person(s) providingand using the rigging and lifting devices to inspectthese devices to ensure they are free from defectand are rated to meet or exceed the publishedweight of the waterbox.

• Always use rigging and lifting devices inaccordance with the applicable instructions for suchdevice.

ProcedureWWAARRNNIINNGG

HHeeaavvyy OObbjjeeccttss!!FFaaiilluurree ttoo pprrooppeerrllyy lliifftt wwaatteerrbbooxx ccoouulldd rreessuulltt iinnddeeaatthh oorr sseerriioouuss iinnjjuurryy..EEaacchh ooff tthhee iinnddiivviidduuaall ccaabblleess ((cchhaaiinnss oorr sslliinnggss))uusseedd ttoo lliifftt tthhee wwaatteerrbbooxx mmuusstt bbee ccaappaabbllee ooffssuuppppoorrttiinngg tthhee eennttiirree wweeiigghhtt ooff tthhee wwaatteerrbbooxx.. TThheeccaabblleess ((cchhaaiinnss oorr sslliinnggss)) mmuusstt bbee rraatteedd ffoorroovveerrhheeaadd lliiffttiinngg aapppplliiccaattiioonnss wwiitthh aann aacccceeppttaabblleewwoorrkkiinngg llooaadd lliimmiitt.. RReeffeerr ttoo tthhee ttaabbllee ffoorr wwaatteerrbbooxxwweeiigghhttss..

NNoottee:: Refer to Table 25, p. 90 for waterbox weights.

WWAARRNNIINNGGSSttrraaiigghhtt VVeerrttiiccaall LLiifftt RReeqquuiirreedd!!FFaaiilluurree ttoo pprrooppeerrllyy lliifftt wwaatteerrbbooxx iinn ssttrraaiigghhtt vveerrttiiccaalllliifftt ccoouulldd ccaauussee tthhee eeyyeebboollttss ttoo bbrreeaakk wwhhiicchh ccoouullddrreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy ffrroomm oobbjjeeccttddrrooppppiinngg..TThhee pprrooppeerr uussee aanndd rraattiinnggss ffoorr eeyyeebboollttss ccaann bbeeffoouunndd iinn AANNSSII//AASSMMEE ssttaannddaarrdd BB1188..1155.. MMaaxxiimmuummllooaadd rraattiinngg ffoorr eeyyeebboollttss aarree bbaasseedd oonn aa ssttrraaiigghhttvveerrttiiccaall lliifftt iinn aa ggrraadduuaallllyy iinnccrreeaassiinngg mmaannnneerr..AAnngguullaarr lliiffttss wwiillll ssiiggnniiffiiccaannttllyy lloowweerr mmaaxxiimmuummllooaaddss aanndd sshhoouulldd bbee aavvooiiddeedd wwhheenneevveerr ppoossssiibbllee..LLooaaddss sshhoouulldd aallwwaayyss bbee aapppplliieedd ttoo eeyyeebboollttss iinn tthheeppllaannee ooff tthhee eeyyee,, nnoott aatt ssoommee aannggllee ttoo tthhiiss ppllaannee..

Review mechanical room limitations and determine thesafest method or methods of rigging and lifting the

waterboxes.

1. Determine the type and size of chiller beingserviced. Refer to Trane® nameplate located onchiller control panel.

IImmppoorrttaanntt:: This section contains rigging and liftinginformation only for Trane CenTraVac™chillers built in La Crosse. For TraneCenTraVac™ chillers built outside theUnited States, refer to literatureprovided by the applicablemanufacturing location.

2. Select the proper lift connection device from Table26, p. 91. The rated lifting capacity of the selectedlift connection device must meet or exceed thepublished weight of the waterbox. Verify thewaterbox weight from the latest publishedliterature.

3. Ensure that the lift connection device has thecorrect connection for the waterbox (e.g., threadtype [course/fine, English/metric] and bolt diameter[English/metric]).

4. Properly connect the lift connection device to thewaterbox. Refer to the following figure and ensurethat the lift connection device is securely fastened.

Install hoist ring on to the lifting connection on thewaterbox. Torque to 100 ft·lb (135.6 N·m) for 3/4-in.(19.05-mm) threaded connections and 28 ft·lb(38.0 N·m) for 1/2-in. (12.7-mm) threadedconnections.

5. Disconnect water pipes, if connected.

6. Remove waterbox bolts.

7. Lift the waterbox away from the shell.

WWAARRNNIINNGGOOvveerrhheeaadd HHaazzaarrdd!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinnddeeaatthh oorr sseerriioouuss iinnjjuurriieess..NNeevveerr ssttaanndd bbeellooww oorr iinn cclloossee pprrooxxiimmiittyy ttoohheeaavvyy oobbjjeeccttss wwhhiillee tthheeyy aarree ssuussppeennddeedd ffrroomm,,oorr bbeeiinngg lliifftteedd bbyy,, aa lliiffttiinngg ddeevviiccee iinn ccaassee tthheeoobbjjeecctt ddrrooppss..

8. Store waterbox in a safe and secure location andposition.

NNoottee:: Do NOT leave waterbox suspended fromlifting device.

90 CVHE-SVX02M-EN

Figure 60. Waterbox rigging and lifting—condenserand evaporator connections

ReassemblyOnce service is complete, the waterbox should bereinstalled on the shell following all previousprocedures in reverse. Use new O-rings or gaskets onall joints after thoroughly cleaning each joint.

IImmppoorrttaanntt:: Torque waterbox bolts (refer to Table 24, p.90).

Torque Requirements and Waterbox Weights

Table 24. CenTraVac™™ chiller bolt torques

Bolt Size Gasket type O-ring Flat

in. mm ft·lb N·m ft·lb N·m

3/8 9.525 25 33.9 12–18 16.3–24.4

1/2 12.7 70 94.9 33–50 44.7–67.8

5/8 15.875 150 203.4 70–90 94.9–122.0

3/4 19.05 250 339.0 105–155 142.4–210.2

Table 25. Waterbox weights

ShellSize

Description

Fabricated Non-MarineWaterbox, Welded Flat

Plate

Non-Marine CastWaterbox

Fabricated Non-MarineWaterboxWelded Dome

Marine StyleWaterboxCover

Weight LiftingConnection



Weight LiftingConnectionlb kg lb kg lb kg lb kg

032

Evaporator, 150 psig(1034.2 kPaG)

265 120 3/4 - 10 — — — — 176 80 1/2 - 13Evaporator, 300 psig(2068.4 kPaG)

Condenser, 150 psig(1034.2 kPaG) — — 176 80 1/2 - 13 — — 176 80 1/2 - 13

Condenser, 300 psig(2068.4 kPaG) 265 120 3/4 - 10 — — — — 221 100 1/2 - 13

050Evaporator, 150 psig(1034.2 kPaG) 397 180 3/4 - 10 397 180 Lifting Fixture — — 265 120 1/2 - 13

WWaatteerrbbooxx RReemmoovvaall aanndd IInnssttaallllaattiioonn

CVHE-SVX02M-EN 91

Table 25. Waterbox weights (continued)

ShellSize

Description

Fabricated Non-MarineWaterbox, Welded Flat

Plate

Non-Marine CastWaterbox

Fabricated Non-MarineWaterboxWelded Dome

Marine StyleWaterboxCover




Weight LiftingConnectionlb kg lb kg lb kg lb kg

Evaporator, 300 psig(2068.4 kPaG) 353 160 3/4 - 10 — — — — 265 120 1/2 - 13

Condenser, 150 psig(1034.2 kPaG) 265 120 1/2 - 13 265 120 1/2 - 13 — — 265 120 1/2 - 13


080

Evaporator, 150 psig(1034.2 kPaG) 662 300 3/4 - 10 662 300 Lifting Fixture — — 441 200 3/4 - 10


Condenser, 150 psig(1034.2 kPaG) 551 250 3/4 - 10 551 250 3/4 - 10 — — 441 200 1/2 - 13


142



Condenser, 150 psig(1034.2 kPaG) 1543 700 3/4 - 10 — — 441 200 3/4 - 10 1323 600 3/4 - 10


210





250





NNoottee:: Refer to product block identifier on the model number plate which identifies the evaporator and condenser shell sizes and the rated pressure. Thedesignators are as follows:Weights shown are maximum for waterbox size. Verify the waterbox from the latest published literature.

Connection Devices InformationTable 26. Connection devices

Unit Product PartNumber Order Information

CTVSafety HoistRing 3/4-10 RNG01884

Contact Trane PartsDepartment

CTVSafety HoistRing 1/2-13 RNG01885


CTV Evap LiftingFixture BAR00400


WWaatteerrbbooxx RReemmoovvaall aanndd IInnssttaallllaattiioonn

CVHE-SVX02M-EN A–1

Appendix A. Forms and Check SheetsThe following forms and check sheets are included foruse with Trane start-up of CVHE, CVHF, and CVHGCenTraVac™ chillers. Forms and check sheets are used,as appropriate, for installation completion verificationbefore Trane start-up is scheduled, and for referenceduring the Trane start-up.

Where the form or check sheet also exists outside ofthis publication as standalone literature, the literatureorder number is also listed.

• “CenTraVac™ Chiller Installation Completion andRequest for Trane Service,” p. B–1 (CTV-ADF001*-EN)

• “CVHE, CVHF, and CVHG CenTraVac™ Chiller Start-up Tasks to be Performed by Trane,” p. C–1

• “CVHE, CVHF, and CVHG CenTraVac™ ChillerAnnual Inspection List,” p. D–1

• “CVHE, CVHF, and CVHG CenTraVac™ ChillerOperator Log,” p. E–1

Unit Start-up/Commissioning

IImmppoorrttaanntt:: Start-up must be performed by Trane or anagent of Trane specifically authorized toperform start-up and warranty of Trane®products. Contractor shall provide Trane(or an agent of Trane specificallyauthorized to perform start-up) with noticeof the scheduled start-up at least two weeksprior to the scheduled start-up.

CVHE-SVX02M-EN B–1

Appendix B. CenTraVac™™ Chiller InstallationCompletion and Request for Trane ServiceIImmppoorrttaanntt:: A copy of this completed form must be

submitted to the Trane Service Agency thatwill be responsible for the start-up of thechiller. Start-up will NOT proceed unlessapplicable items listed in this form havebeen satisfactorily completed.

TO:TRANE SERVICE OFFICE:S.O. NUMBER:SERIAL NUMBERS:

JOB/PROJECT NAME:

ADDRESS:

The following itemsare being installedand will be completed by:

IImmppoorrttaanntt:: Start-up must be performed by Trane or anagent of Trane specifically authorized toperform start-up and warranty of Trane®products. Contractor shall provide Trane(or an agent of Trane specificallyauthorized to perform start-up) with noticeof the scheduled start-up at least two weeksprior to the scheduled start-up. EEqquuiippmmeennttnnoott ssttaarrtteedd bbyy TTrraannee iiss nnoott wwaarrrraanntteedd bbyyTTrraannee..

NNootteess:: Improper installation of CenTraVac™ chillers,including optional components, can result instart-up delay and required rework. Follow allprovided instructions and in use particular carewith optional devices:

• Follow installation procedures forRuptureGuard™; refer to CTV-SVX06*-ENfor CDHF, CDHG, CVHE, CVHF, CVHG, CVHL,and CVHS models, refer to CDHH-SVX001*-EN for CDHH models, and refer to CVHH-SVX001*-EN for CVHH CenTraVac™ chillermodels.

• Do NOT over-insert or over-torque the probeof the ifm efector™ flow detection controllerand sensor; refer to PART-SVN223*-EN orthe CenTraVac™ chiller Installation,Operation, and Maintenancemanual.

• Do NOT block serviceable parts wheninstalling isolation springs.

Expenses that result in improper installation ofCenTraVac™ chillers, including optionalcomponents, will NOT be paid by Trane.

Check box if the task is complete or if the answer is“yes”.

1. CCeennTTrraaVVaacc™™ CChhiilllleerr

In place and piped.

NNoottee:: Do not insulate the CenTraVac™ chiller oradjacent piping prior to the chillercommissioning by Trane service personnel.The contractor is responsible for any foreignmaterial left in the unit.

2. PPiippiinngg

Chilled water piping connected to:

CenTraVac™ chiller

Air handling units

Pumps

Optional ifm efector® flow detection controllerand sensor properly installed

Condenser and heat recovery condenser (asapplicable) piping connected to:

CenTraVac™ chiller

Pumps

Cooling tower

Heating loop (as applicable)

Additional piping:

Make-up water connected to cooling tower

Water supply connected to filling system

Systems filled

Pumps run, air bled from system

Strainers cleaned

Rupture disk or RuptureGuard™ ventilationpiping properly installed

Optional RuptureGuard™ properly installed

3. FFllooww bbaallaanncciinngg vvaallvveess iinnssttaalllleedd

Leaving chilled water

Leaving condenser water

Optional heat recovery or auxiliary condenserwater

4. GGaauuggeess,, tthheerrmmoommeetteerrss,, aanndd aaiirr vveennttss

Installed on both sides of evaporator

Installed on both sides of condenser and heatrecovery condenser (as applicable)

5. WWiirriinngg

Compressor motor starter has been furnishedby Trane, or has been configured and installedin compliance with the appropriate TraneEngineering Specification for Starter by Others(available from your local Trane Sales Office)

Full power available

B–2 CVHE-SVX02M-EN

Interconnecting wiring, starter to panel (asrequired)

External interlocks (flow switch, pumpsauxiliary, etc.)

Chiller motor connection (remote starters)

NNoottee:: Do not make final remote starter-tocompressor motor connections untilrequested to do so by the Trane servicerepresentative!

Chilled water pump (connected and tested)

Condenser water pump (connected and tested)

Optional ifm efector® flow detection controllerand sensor cable properly installed and securedfor non-stress at probe connector

Cooling tower fan rotation checked

Heat recovery condenser water pump (asapplicable)

115 Vac power available for service tools

All controls installed and connected

All magnetic starters installed and connected

6. TTeessttiinngg

Dry nitrogen available for pressure testing (fordisassembled units)

Material and equipment available for leaktesting, if necessary

7. RReeffrriiggeerraanntt

For CDHH and CVHH chillers: Verify suppliedrefrigerant is “Solstice ZD” Refrigeration Gradeby checking certificates provided with tanks.

Refrigerant on job site and in close proximity tochiller.

Total amount in cylinders/drums:___________ (specify lb or kg) and fill inspecifics below:

Number of cylinders/drums _____ of size_____ (specify lb or kg)

Number of cylinders/drums _____ of size_____ (specify lb or kg)

NNoottee:: After commissioning is complete, it is theinstaller’s responsibility to transportempty refrigerant containers to an easilyaccessible point of loading to facilitatecontainer return or recycling.

8. SSyysstteemm

Systems can be operated under load conditions

9. AAvvaaiillaabbiilliittyy

Electrical, control man, and contractor’srepresentative are available to evacuate, charge,

and test the CenTraVac™ chiller underserviceman’s supervision

10. EEqquuiippmmeenntt rroooomm

Does the equipment room have a refrigerantmonitor/sensor capable of monitoring andalarming within the allowable exposure level ofthe refrigerant?

Does the installation have properly placed andoperating audible and visual refrigerant alarms?

Does the equipment room have propermechanical ventilation?

If it is required by local code, is a self-containedbreathing apparatus available?

11. OOwwnneerr aawwaarreenneessss

Has the owner been fully instructed on theproper use and handling of refrigerant?

Does the owner have a copy of the MSDS forrefrigerant?

NNoottee:: Additional time required to properly completethe start-up and commissioning, due to anyincompleteness of the installation, will beinvoiced at prevailing rates.

This is to certify that the Trane equipment has beenproperly and completely installed, and that theapplicable items listed above have been satisfactorilycompleted.

Checklist Completed by(Print Name):

SIGNATURE:DATE:

In accordance with your quotation and our purchaseorder number ______________, we therefore require thepresence of Trane service on this site, for the purposeof start-up and commissioning, by ______________(date).

NNoottee:: Minimum of two week advance notification isrequired to allow for scheduling of the chillerstart-up.

ADDITIONAL COMMENTS/INSTRUCTIONS

CCeennTTrraaVVaacc™™ CChhiilllleerr IInnssttaallllaattiioonn CCoommpplleettiioonn aanndd RReeqquueesstt ffoorr TTrraannee SSeerrvviiccee

CVHE-SVX02M-EN C–1

Appendix C. CVHE, CVHF, and CVHG CenTraVac™™Chiller Start-up Tasks to be Performed by Trane

WWAARRNNIINNGGSSaaffeettyy AAlleerrtt!!FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinnddeeaatthh oorr sseerriioouuss iinnjjuurryy..IInn aaddddiittiioonn ttoo tthhee ffoolllloowwiinngg ttaasskkss,, yyoouu MMUUSSTT::

•• FFoollllooww aallll iinnssttrruuccttiioonnss iinn tthhee uunniitt’’ssIInnssttaallllaattiioonn,, OOppeerraattiioonn,, aanndd MMaaiinntteennaanncceemmaannuuaall,, iinncclluuddiinngg wwaarrnniinnggss,, ccaauuttiioonnss,, aannddnnoottiicceess..

•• PPeerrffoorrmm aallll rreeqquuiirreedd ttaasskkss iinn aannyy aapppplliiccaabblleeSSeerrvviiccee AAlleerrttss aanndd SSeerrvviiccee BBuulllleettiinnss..

•• RReevviieeww aanndd uunnddeerrssttaanndd aallll iinnffoorrmmaattiioonnpprroovviiddeedd iinn SSuubbmmiittttaallss aanndd DDeessiiggnnSSppeecciiffiiccaattiioonnss..

1. GGeenneerraall

Inspect chiller for damage (shipping or rigging).

Verify and record unit nitrogen holding chargepressure.

Inspect water piping for proper installation.

Inspect strainers, flow sensing devices,isolation valves, pressure gauges,thermometer wells, flow balancing valves,vent cocks, and drains.

Inspect cooling tower piping.

Verify proper clearances.

Power wiring meets size requirement.

Verify proper voltage and amperage rating.

Verify proper foundation installation.

Verify unit isolator pads/springs have beeninstalled.

Verify low voltage circuits are isolated fromhigh voltage circuits.

Check equipment room for ventilation,refrigerant monitor, rupture disk piping, andPersonal Protective Equipment (PPE).

NNoottee:: All conditions which do not conform to theestablished requirements for unit installationMUST be corrected prior to start-up. Any non-conforming condition which is not correctedprior to start-up must be noted in the Non-Compliance Form (PROD-ADF001*-EN) by thestart-up technician; this information must also besigned by responsible site personnel beforestart-up and the completed Non-ComplianceForm will become part of the start-up record,submitted with a Start-up Check Sheet and aChiller Service Report.

2. PPrree--SSttaarrtt OOppeerraattiioonnss

Verify nitrogen holding charge.

Calibrate the high pressure cutout control(HPC).

Meg compressor motor.

Confirm proper oil pump operation.

Evacuate unit.

Check condenser installation.

Check evaporator installation.

NNOOTTIICCEEDDoo NNoott AAppppllyy EElleeccttrriiccaall PPoowweerr ttooaa UUnniitt 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--ddeellttaassoolliidd ssttaattee ssttaarrtteerrss,, ddiissccoonnnneecctt ppoowweerr ttoouunniitt dduurriinngg eevvaaccuuaattiioonn oorr wwhheenn tthhee uunniitt iiss iinnaa ddeeeepp vvaaccuuuumm.. IInn aaddddiittiioonn,, oonn uunniittss wwiitthhiinnssiiddee--tthhee--ddeellttaa ssoolliidd ssttaattee ssttaarrtteerrss,, aallllppoowweerr ttoo tthhee uunniitt mmuusstt bbee ddiissccoonnnneecctteeddpprriioorr ttoo eevvaaccuuaattiinngg tthhee uunniitt aass lliinnee ppoowweerr iissddiirreeccttllyy aapppplliieedd ttoo tthhee mmoottoorr tteerrmmiinnaallss 44,, 55,,aanndd 66..

Check electrical and controls.

Inspect motor starter and control panel.

Confirm all wiring connections are tight, freeof abrasion and have no sharp bends inpanel and on compressors.

Inspect contactors and relays.

Verify unit wiring (low and high voltage) iscorrectly isolated, phased, and properlygrounded.

Connect external 120 Vac power to power upthe control panel.

Run the oil pump to verify pump can provide

C–2 CVHE-SVX02M-EN

18 to 22 psid (124.1 to 151.7 kPaD) netpressure.

Verify and record control parameters.

Verify all control interlocks are installed andproperly functioning.

Dry run starter (non-Adaptive Frequency™Drive [AFD]).

Measure condenser pressures and flow.

Adjust condenser flow sensing device.

Measure evaporator pressures and flow.

Adjust evaporator flow sensing device.

Inspect motor starter panel and perform starterpanel checkout procedures.

Confirm proper phase check incoming power.

Inspect control panel.

Apply separate source 120 Vac power to controlto perform control panel checkout procedure.

Review and record unit configurationparameters.

Confirm oil pump pressure—regulating valvesetting.

Verify vane operator is working properly andmoves without binding.

Dry run test starter (non-AFD).

Remove separate source power and reconnectwiring.

3. PPrreeppaarraattiioonn ffoorr SSttaarrtt--uupp

Relieve nitrogen holding charge.

Evacuate and charge the system.

Apply power to the starter panel.

Verify current to the oil sump heater.

4. CChhiilllleerr SSttaarrtt--uupp

Set Purge mode to “On.”

Bump-start the compressor and verifycompressor motor rotation.

Start chiller.

Verify no unusual noises or vibrations andobserve operating conditions.

If necessary, adjust oil pressure regulatorbetween 18 to 22 psid (124.1 to 151.7 kPaD) net.

Measure and verify refrigerant pump pressure.

When chiller is stable, take system log threetimes at 15-minute intervals.

Set Purge mode to “Adaptive.”

Reset the “Starter Energy Consumption”resettable.

Record a Chiller Service Report.

Review “AdaptiView Display Customer TrainingChecklist.”

Equipment Description

Stopping/Starting Chiller Operation

Alarms

Reports

Data Graphs

Equipment Settings

Display Settings

Security Settings

Basic Troubleshooting

CCVVHHEE,, CCVVHHFF,, aanndd CCVVHHGG CCeennTTrraaVVaacc™™ CChhiilllleerr SSttaarrtt--uupp TTaasskkss ttoo bbee PPeerrffoorrmmeedd bbyy TTrraannee

CVHE-SVX02M-EN D–1

Appendix D. CVHE, CVHF, and CVHG CenTraVac™™Chiller Annual Inspection ListFollow the annual maintenance instructions providedin the text of this manual, including but not limited to:

1. CCoommpprreessssoorr//MMoottoorr

Motor continuity.

Motor meg test.

Check motor terminals.

Inspect motor terminal board.

Check inlet guide vanes (IGV) for abnormalities.

2. SSttaarrtteerr oorr AAddaappttiivvee FFrreeqquueennccyy™™ DDrriivvee

Inspect starter contacts.

Check all connections per manufacturerspecifications.

Follow all manufacturer recommendations forstarter or Adaptive Frequency™ Drive (AFD)maintenance.

Inspect/clean/service the AFD cooling system(water- or air-cooled AFD).

Record all applicable starter or startercomponent settings.

3. OOiill SSyysstteemm

Annual oil analysis (follow recommendations).

Clean and lubricate oil system as required.

Electrical inspection.

Pump motor continuity check.

Run oil pump and check differential oil pressure.

4. CCoonnddeennsseerr

Inspect for fouling and scaling in tubes.

Check operation of condenser water flowsensing device.

Factory recommendation to eddy current testtubes every three years.

5. EEvvaappoorraattoorr

Inspect for fouling and scaling in tubes.

Check operation of evaporator water flowsensing device.

Factory recommendation to eddy current testtubes every three years.

6. CCoonnttrrooll CCiirrccuuiittss

Verify control parameters.

Test appropriate sensors for accuracy.

Ensure sensors are properly seated in wells withthermopaste installed.

Check evaporator leaving water temperaturelow temperature cutout setpoint.

Condenser high pressure switch check-out.

Check adjustment and operation of the inletguide vane actuator.

7. LLeeaakk TTeesstt CChhiilllleerr

Check purge times and unit performance logs. Ifwarranted, pressure leak test.

Review oil analysis. If required, submitrefrigerant sample for analysis.

Inspect unit for any signs of refrigerant or oilleakage.

Check unit for any loose bolts on flange,volutes, or casing.

8. PPuurrggee UUnniitt

Review the purge Installation, Operation, andMaintenancemanual and follow maintenanceand/or inspection items identified.

Review purge pump-out data.

Review overall operation of purge and serviceas necessary.

9. EExxtteerriioorr

Inlet guide vane linkage.

Clean and touch-up painted surfaces as needed.

Repair deteriorated, torn, or missing insulation.

10. OOppttiioonnaall AAcccceessssoorriieess

If applicable, lubricate factory-installed gantries.

After the first month of operation, inspectHeresite® or Belzona® coated waterboxes;thereafter, inspect as needed.

Inspect anodes.

Inspect and lubricate hinged waterboxes.

With water flow sensing option, bleed tubingfrom waterboxes to transformers.

CVHE-SVX02M-EN E–1

Appendix E. CVHE, CVHF, and CVHG CenTraVac™™Chiller Operator LogWater-Cooled CVHE, CVHF and CVHG CenTraVac™™ Chillers with UC800 Controller

Tracer®® AdaptiView™™Reports—Log Sheet Log 1 Log 2 Log 3Evaporator

Entering

Leaving

SaturatedRefrig. Press

Approach

Flow Sw Status

CondenserEntering

Leaving

SaturatedRefrig. Press

Approach

Flow Sw StatusCompressor

StartsRunning Time

Oil Tank PressOil Discharge Press

Oil Diff PressOil Tank Temp

IGV Position %IGV Steps

Motor%RLA L1, L2, L3

Amps L1, L2, L3

Volts AB, BC, CA

Power KW

Load PFWinding #1 Temp

Winding #2 Temp

Winding #3 Temp

IGV Steps

With AFD only

AFD Freq

AFD Speed

AFD Transistor Temp

Purge

Time Until Next Purge Run

Daily Pumpout—24 hrs

Avg. Daily Pumpout—7 days

Daily Pumpout Limit/Alarm

Chiller On—7 days

Pumpout Chiller On—7 days

Pumpout Chiller Off—7 days

Pumpout—Life

E–2 CVHE-SVX02M-EN

Water-Cooled CVHE, CVHF and CVHG CenTraVac™™ Chillers with UC800 Controller

Tracer®® AdaptiView™™Reports—Log Sheet Log 1 Log 2 Log 3Purge Rfgt Cprsr Suction Temp.

Purge Liquid Temp.

Carbon Tank Temp. (if present)

Date:

Technician:Owner:

CCVVHHEE,, CCVVHHFF,, aanndd CCVVHHGG CCeennTTrraaVVaacc™™ CChhiilllleerr OOppeerraattoorr LLoogg

Ingersoll Rand (NYSE: IR) advances the quality of life by creating comfortable, sustainable and efficientenvironments. Our people and our family of brands — including Club Car®, Ingersoll Rand®, Thermo King® andTrane® —work together to enhance the quality and comfort of air in homes and buildings; transport and protectfood and perishables; and increase industrial productivity and efficiency. We are a global business committed to aworld of sustainable progress and enduring results.

ingersollrand.com

Ingersoll Rand has a policy of continuous product and product data improvements and reserves the right to change design and specificationswithout notice.We are committed to using environmentally conscious print practices.

CVHE-SVX02M — EN 27 Mar 2017

Supersedes CVHE-SVX02L-EN (November 2016) ©2017 Ingersoll Rand | all rights reserved

installation, operation, and maintenance€¦ · cvhe-svx02m-en 3 warning follow ehs policies!...

Documents