TRAIIE-

CG\ryD Lieuid crri[e.rsrowater cooted

CCUD Ilvo independent circuits.

Fitted with a microprocessor-based leaving chilledwater temperature controller.Exiensive remote control and communicationcapabilities.Nominal cooling capacities 135 kW io 601 kW (50 Hz),11 unit sizes.Two independent refrigeranl circuits.All water cooled models factory run tested.Model CGWD with built-in, water cooled condensers,model CCUD for use with remote air cooled condenser,Designed and manufactured in accordance with TraneQuality Management System approved to BS 5750,Part l.

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"#fri"Brs CA oor E

t he new Tlane CGWD reciprorating liquid chillers makexse- of nroven comDonents rvhich have contributed to establish

the reputation of superió. reliàbility and performance of the T|ànereciprocating chillers.Thê Trane wàter chillers typ€ CGWD and compr€ssor chillers type CCUDare equipped with the latêst microprocessor conuol technology. Micropro-cessor chillêr control means smooth, accurate and losicà] chiller control.That translates into even sreater reliability and chiller perïormance.All unit sizês ar€ exc€ptionally compact and ïully accê$ible for service and

The liquid chillers are available with built in waier cooled condensem orwithout condens€r for use with a remotely installed air cooled condenser.All water cooled chillers arê fuily factory run tested before shipment.

Control module specifications

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Microprocessor basedchilled water controlThe RCM controls Írom the leavingor supply rvatêr side of thê chiller.With this temperature as a compo'nent of input, its programmed logicestablish€s the appropriat€ contrclresponse needed to produce a stableand àccuntê lealjng {ater temper-ature condiiion. The PID (propor'tional plus intesral plus derivative)control àciion works as follows :Proportional control produces adegrêê of comprêssor loadins orunloadins that is proportional iothe djfference betveen the leavingwater temperature and the set

This is vhere int€gral controlaction takes over ; so long as thetemperature difference pe.sisis, thecontroll€r integrates thê €rro. ove.time and continues to load orunload the compressor, as neces-sary, in an €ffort to r€turn thetemperature to the set point. Inte'gral cont.ol looks backwards intime, tberefore it cannot anticipatethê need lor futurê control action.The derivative function aniicipat€sluture control action by taking intoconsideration the rai€ of tempem'ture change or the slope of thechange. Il ihe slope is st€êp, thecompressor is loaded or unloaded ata fast rate. If the slop is shallow,the loadins or unloading ràte is

PID control produces accumte,responsive control action, etimlnating steady sÈte êrror lrom thechiller leaving rvater temperature.

Operating modecontrol. Afii-rccycle tindng

Based on tim€ between compres-sor starts, this provides opêra'tional stability. Before stoppinsthe lag compressor runnina oniis last capacity stàg€, the RCMcontrol module unloads the firstcapacity step of the leàdcom])Iessnr.ln mrs way, excessLvê comprês-sor cyclins at 50 percent load isavoided.

. Operating time barancingEach time the chiller stops, theRCM module automaticallyfevêrses the compre$ols stall-ins ord€r, thus balancing operat'ing time on each circuit.

System protectionAll the safety parameters a?êchecked before the chiller startsand durins chiller operation. If oneof the following probl€ms isdetected the RCM module stops thechiller and provides trouble shoot'ins information via LEDs located

. Chilled water set point too closêto lo\í têmperature cutoutserDng.

. Malfunction of the RCM modul€.

. Low leaving chilled watêriemperatur€. This prevenisfteezing while avoidins the nui-sànce of low temperature trips.

. Water temperàture sensor isdêf ective or shortcircuited.

. l-oss o{ water flow in the evapo-rator. Onli' the relevant circuit isshuidown if one of the lollowinsproblems occurs :

. Inw evàporating pressure belowset point.

. Oil pressureàelow set poini.

. Motor windjng temperaiur€ ioohish.

. Motor current drawn too high.

Loed ltmttingAfter starting the chiller, thelàst compressor step is loadedonl)' when the leà'ving chilledwater tempêraiure falls belowthe p?eset point, tbuspreventingnuisance motor overload tdps.Pedodtc pump.domDuring shui-down pefiods, evà-pofator pressure is checkedhourly. U the pfêssLrre risesabove a safêty limit, a pumpdowr cycle is initiated. Periodicpump-down avoids liquid sluggrng ar stall up,I-ow pressue stfft rogicWh€n ihe chiller is stalted, thelow pressure sisnal is isnoredfor 3 minutes until p.essures inthe chiller are stabilized.Autometic restart after e power

Afier a power loss, the moduleautomatically restarts ihêchill€r, provided no fault condi'tion is detect€d.

BCM Ba.se Module (Circuit A) RCM Ext€nÊion Module(Circuit B)

Communication

The RCM module offers severalpossibiiities of communication.These different systeme of commun-ication considerably simplify thefault diagïostic and provide statug

Operator interfaceThe RCM module has a displayboard with LEDS providing the fol-lowing information:. Compr€ssor loading status.. Evaporator water pump on.. Control power suppLy on.. Safeties satisfied (oil preseure,

motor temperature, condensingpre$ure...).

Should a saf€ty device t p out, thecorrespondins fault indicating LEDand the general fault LED areenergized,When the defect is repaired thereset button must be d€pressed toenable th€ chille? to restart.The leaving chilled water t€mpela-ture set Doint can be adjusted onthe fac€;f the RCM module.

Remote control andcommunicationinterfaceThe RCM module is equipped withterminal strips for the connection ofthe following .inputs :. Rernot€ On/Off contol by meang

of a pot€ntial-free contact.. Renote chilled water reset

through an analogical input (0 to10 volis).

Opiional relay cards - one percircuit - can be connected to iheRCM module providing potentialftee contach fo? remote status andfailure indication :. Chiller r€ady for start.. Machine (circuit)-in operation.. Oil pressure trip-out.. Fre€ze protection tuip'out.. Motor winding tempe*ture trip-

. Condensing pressure trip-out.

. Motor overload trip-out.

Remote controlthÍough e seriallinkThe RCM module is fiti€d with aserial comnunication connectionwhich allows the chiller to beintegràted in a Buildins Manage-ment or Àutomation Syst€m.All information requiÈd to conholth€ chiller ftom a remot€ location isconverted into binary sisnals andtraNmitted through a serial com-munication link.Up to 16 chillers can be connectedto the same link.The RCM module uses a TTY typeserial communicat;on link. Thislink is compatible with almost allB.A. Systems available on themarket. Its sensibility to intefer€n-ces is very low, transmission speedreaches 4800 bauds. The maximumlength of the link is 1500 meters.The RCM is a "slave system" con-troll€d tuon the higher ievel Build-

ins Àutomation System which cansend the followins commands :. Change oÍ the chilled water set

point.. Start or stop the chiller.The B.A. System can also extractftom the RCM such information

. Chilled \Íater s€t point.

. Freeze protection set point.

. I€avins chilled water

. Number of loaded capacity step3.

. Hot gas bypass in operation(chillers equipped with hot gasbypass only).

Should the unit trip out on a Bafety

. Type of iault.The information obtàined throwhthe serial link can be displayed on acomput€r cpntrol monitor.The local Tran€ sales office willprovide the protocol specification

Coollng capecities and power lnput (60 Hz)

codeuler ledrg mter teD!êEt{r€ (rc)

(rc) (LwJhprn Coolhg hput(rff) (llt ) (kw)(Lf) (lrrJ

CoolingGw)

C@ltrg(LY)

3't.438.4

34.235.136.0

123.2 31.9131.1 32.1139.4 33.5

129.5 29.8l3?.9 30.4146_6 31.1

57I

1lri.2t23.7131.5

108.5115.8123.3

2A5 Z

39.8 128.1 .11.940.8 136.8 43.241,.7 145.8 44.8

38.339.1

35.857206 z

751.2161.01?1.1

144.0153.4163.0

136.3145.3154.6

49.5 159.3 52.450.8 171.0 53.951.9 183.2 55.4

179.9192.7206.2

207 Z190.3203.62t7.4

43.944.145.ó 48.7

169.6181.9194.9

57

2rJ3.4 68.2?18.1 69.2233.4 7t.9

60.?61.363.4

56.5

58.8

57208 R

240.6

2'12.8

228.4244,0260.2

216.323t.2247.7

64.565.4

74.37ri.077.9

?0.371.873.4

66.167.368.6

267.4 61.5244.4 62.6302.0 63.6

579

254.2274.9288.2

240,7257. l274.0

226.9242.8259.2

2X9 R

82.084.085.8

79.380.8

290.0 ?3.0309.0 ?4.3328.5 '15.6

579

?09 R305.132!.t841.2

68.069.1?0.1

274,6293.0312.0

258_6276.4294.8

299.3 85.8 282.9 90.?318.,1 87.4 301.3 52.733?.9 89.0 320.2 94.7

210 R330.8350.8371.4

315.3334.9355.0

80.581.783.0

74.876.976.9

5,|9

2 1 1 R365.6387.3409.5

94E.9369.9391,3

331.6351,9372.6

96.39?.098.?

313_8333.43ó3.4

100.9103.1t05.2

89.290.692.0

82.984.185.2

57

21t E4ts5.7463.9493.0

4t2.9444.2468.3

390.2416.5413.7

102.E105.1L07.2

392.8419,0

109.0111.?114.3

96.398.r99.8

89.490.?92.0

57

2r4 E501.ó533.2565.9

102,3ta3.7104.8

476.8507.7539.7

110.2112.0114.0

451.8481.9512.9

117.9120.3t22.7

426.6454.7485.8

125.1128.0130.9

57

215 Eó?5.8611.8648.8

116.4118.0119.5

à48.6564.0620.6

125.7127.9129.8

134.613?.3139.8

t42.9L46.2149.4

492.4526.0560.8

520.8

591.37

Evaporator water side preÊsure drop Condenser water side preagure dmp150

150

1009080706050

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4 2 0

3È 1 0

I87

100908070ri050

? 4 0

g

: 2 0

ËÈ r 0

9

7

4 6 4 1 0 30 40 6030 40 ó0

Electrical and general data (50 Hz)

Model cGwD 2052 2Q6Z 2Q7Z 20AR 2X9 R 209R 210R 211R 213E 2148 2t5ENo óí 2/2 2/22/2 2/2 2/2 2/2 2/2 2/2 2/2 2/2 2/2

75-5U 7t5LL 83-5t!25 25 33

81-44-22 83-5G 8144-29or 33

7&5S37 8S55-37

71-4ï21 7í5Gat 25

7957-29

75-5G25

7S5G25

83-5&33

74 90 112 1,62 166 t7a 2t2 30E267226t91

Stafting 144 218 385 389 443 744 742530178

114 102 88 164 140 188 25332816488103

524522 20 29 32 45 52 60 62 73

48 48 12010830

weisht (4)2280 2340 2950

oÀ : r ccbued r *d !e i 4a 32(, ^t 4li/3/i0 d s bá sudor pEsule(3) a ldddhs sbÊ one compresor ar tul ]oad, d,ê k.ond otu $diq. or 3rè z\e i, 2$ n ed 2r4 n dr.odp(1)4lapacr!\'ddvetht&h4È1ybJresgiescGÍEu0i6(9i$buiInv,€rcooledconden*d'IoI*IisccLDuni6({ithoutedeNtfolukyirh1

OdeiX

Dimensions

Model CGIID 2o5z 2062 2ozz 2oaR 2tgR 2OgR 21OR 211R 2138 2 l4E 2158Lencth À {Im) 2080 20E0 2254 2400 2440 2850 2850 2880 4050 4050

B (Im) 1050 1070 7220 1220 t27A m601050 1360 r22Q 1370 l37AHèight C (m) 1700 1700 1750 1750 t75A1700 18001800 1850 1850 1850

6m) 2000 2000 2000 2050 24502450 2450 2450 245Q 4000

600 600 600 600 600 6006003 l

o tunged @m<dotrs or a[ sizes(r) comstioG ld3lc pjoc rsr^? dn s;ë 205 z, ,06 z, ,07 z ad :03 R all oth{ siz* haye naêd driiarionsCl) Mnidd de@ce oD al tour sides Jdoval on Ihe tuht or lsfr h and side or tlre unir(a) ro.arioi ol*dor cotu&lióls deperds or nodel rd size rdtr to cerdied subDifrlr dEdoF(t DÉvjls ad dimeBions aeDmximiè ccdncd dtuiqs oí qlsl

Mechanical specifi cations

Dual circuit liquid chiller unit,factory assembled and wircd, con-sisting of I

Two semi-hermedc reciprocatinscomprcssors with capacity contloland reduced load startins. Positivedisplacement oil pump, oil filte?,sisht glass and crankcase heater.Suction gas cooled motor protectedby winding temperature sensomand extenal overload relay.Water @ol€d condenser(except oedes CCIID)Shell-and-tube design with twoseparàte refrigerant circuits. St€elshell welded tó hêavy tube sheets.Seamless integrally finned coppertubes mechanically e$anded iniog"ooved tube sheets. Built-in liquidsubcooler. Remo!€b]e heads ofclosed srain cast iron. Water connections female pipe threàd IS0 R7on sízes 205 Z, 206 Z,207 Z and208 R, flansed connections on all

Safeiy relief valve. Màxinum operatins pressure refrigdant side2.5MPa, water side 1.4 MPà.

Shell-and-tube desisn with twoseparate refriserant circuits.Retuiserant inside the tubes andwatff circulatins in the shell ; steelshêll welded to heaw steel tubesheeis. Rêfrisêrant heads of hishstrensth cast steel bolted to thetube sheets. SeU enersizine typesàskels requirins low bolttorquê. Wàter connections flangedon all sizes. Thêrmal insulation ofevapomtor of flexible closed cellpolyvinylchloride. Maximum oper,atins pressure refriserànt side1.4MPa, water side 1.4 MPa.

Contlol ànd starter panel 'Panel vith sepàràte compartmêntsJor motor starters and contlols.Starter panel section includes:Part winding moior contactors. Overload relay. Terminal stripsConuol panel section includinsTrane RCM microprocessor'basedcontrol and communication moduleprovidins the ïollovins functions :. Evaporator leàvinc wàtêr

PID temperature control. Control of thê operating mode. System protection. Communication ànd remote

Operator level : LEDS on thefront panel oí the module pro-vide operating status, fauli indi-cation and diagnosticsinformation.Parallel conmunicàiion andremote control :Remotê chàng€ of set point, andremote o4/off conirol. Optionàlrelay cards provide potential frê€contàcls for sêven stàtus andfault indicàtors p€r circuit.Serial communicaiion and

A TTY seriàl communicationpoÉ allows binary operating status inlormation and commandtransmission and intesration o{thê chiller into Buildins Màn-asement Systems.

The control panel section furthêrincludes oil pressure, dischargepressure and low p.essure pressostats ànd terminal strips. The RCMnodule js visible throush a windowin the control pànel access door.0jl pressure, low pressure and hishpressure gauses are provided onthe panel.

Two retuigerànt circuitsEàch circuii including Íilter dryer,sight glass, solenoid valve and ther-mostàtic expansion vàlve. Compressor discharse service valve andiiquid iine shut-off solenoid valve.Reft igerant circuit factory pr€ssurêànd leak testêd, dehydrated andcharged with refrigerant charge.Accessori€s and options. Rubber,in-sbear or sprinc type

. Hot sàs muffler (stàndàrd onCGWD 205 Z to 201 Z).

. Disconnect switch.

. Condenser and evàporator mixmàtch arràngements.

. Facto.y-installed hot gas bypàss.

. R€lay card for .emot€ siatus andfailure indication (one càrd percircuit).

Factory testingCGWD are fully factory run tested.Unit operation and all controls arethomughly checked out before

Shipment.CGWD ship on a wóodên skid withthe refris0ant and oil opelating

CCUD compressor-chiller units shipon a wooden skid with oil opentinEcharse and reftiserànt holdjnscharge,

Quality AssuraÍceThe Quality Manasement Systemapplied by Trane has been subjectto independent third party assess-ment and approval ió BS 5?50Part 1, I.S.O. 9001, and N.E.N.2646.The products described in this càialogïe are designed, mànrÍactured,and têsted in accordance rÍith theapproved sysiem requrremenrs asdefined in the Tran€ Quality

Subject ín nodíficdií%.

TRIIITE-

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3 Th. Mà , Lucàn, Co. Dublinrhone : (000t 239966 .rel* i 721 4?2 E

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