Download - Technical YK

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YK CENTRIFUGALLIQUID CHILLER

R134a REFRIGERANT

COOLING CAPACITIES750 kW to 7030 kW

The YK range of chillers are designed forwater or water/glycol cooling. The centrifugalcompressor is open drive and close coupledto the motor. Heat exchangers are theflooded type with refrigerant passing throughthe cooler and condenser shells and water inthe tubes.

Capacity selection is computerised so thatchiller components can be custom-matchedto meet individual building load energyrequirements.

A Cooling Tower or Dry Cooler is required forheat rejection.

All units are designed for plant roominstallation.

CONTENTSSpecification

Accessories and Options

Identification

Dimensions

Unit Weight & Refrigerant Charges

Nozzle Arrangements

Solid State Starter Location

Motor/Compressor Dimensions

Refrigerant Piping Diagram

Installation Conditions - Limits

FEATURES BENEFITSManufactured to ISO 9001/EN 29001 High standard of quality control

High full load and part load efficiency. Low operating costs at all load conditions.

Operates at low condenser water temperatures. Reduced energy costs during winter and capitalcost savings.

Open drive motor. More efficient than refrigerant cooled motor.

Mixed-matched components. Satisfies exact capacity/energy requirements.

Industrial type centrifugal compressor. Long life reliability.

Microprocessor control with OptiView Graphic ControlCentre.

Ease of operation with graphical representation ofsystem operation and historical data.

Unit remote alarm contacts. Warning notification.

Remote water temperature and current limit reset. To improve operating efficiency.

Building Management Interface. For central data logging and single point systemmonitoring and control.

SPECIFICATIONCompressorThe compressor is a single-stage centrifugal type powered by an open-drive electricmotor. The housing is fully accessible with vertical circular joints, with the completeoperating assembly removable from the compressor and scroll housing. Compressorcastings are designed for 18 bar working pressure and hydrostatically pressure tested at27,5 bar. The rotor assembly consists of a heat-treated alloy steel drive shaft andimpeller shaft with a cast aluminium, fully shrouded impeller. The impeller is designed forbalanced thrust, dynamically balanced and overspeed tested for smooth, vibration-freeoperation. Insert-type journal and thrust bearings shall be fabricated of aluminium alloy,precision bored and axially grooved.

Internal single helical gears with crowned teeth are designed so that more than one toothis in contact at all times to provide even distribution of compressor load and quietoperation. Each gear is individually mounted in its own journal and thrust bearings toisolate it from impeller and motor forces. The shaft seal is a spring-loaded carbon ringwith precision lapped collar cooled by oil during operation. A gravity-fed oil reservoir isbuilt into the top of the compressor to provide lubrication during coastdown in the event ofa power failure.

Capacity control is achieved by use of pre-rotation vanes to provide fully modulatingcontrol from full load to minimum load. The unit is capable of operating with lowertemperature cooling tower water during part-load operation. Pre-rotation vane position isautomatically controlled by an external electric actuator to maintain constant leavingchilled water temperature.

Lubrication SystemLubrication oil is force-fed to all bearings, gears and rotating surfaces by an oil pumpwhich operates prior to startup, continuously during operation and during coastdown. Anoil reservoir, separate from the compressor, contains a submersible oil pump andimmersion-type oil heater, thermostatically controlled to remove refrigerant from the oil.Oil is filtered by an externally mounted ½ micron replaceable cartridge oil filter equippedwith service valves. Oil cooling is via a refrigerant cooled oil cooler, with all piping factoryinstalled. Due to the possibility of refrigerant contamination and the requirement for fieldwater piping, water cooled oil coolers are not acceptable. Both the refrigerant and oil sideof the oil cooler are provided with service valves. An automatic oil return system torecover any oil that may have migrated to the evaporator is provided. Oil piping iscompletely factory installed and tested

Page E.1Doc. No. PC119/11.01/GB

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SPECIFICATION (CONTINUED)Motor DrivelineThe compressor motor is an opendrip-proof, squirrel cage, induction typeoperating at 2950 tr/min.

The open motor is provided with a D-flange,bolted to a cast iron adaptor mounted on thecompressor to allow the motor to be rigidlycoupled to the compressor to providefactory alignment of motor and compressorshafts. For units with high power motor ormotor without D-flange, the compressor/motor is mounted on a rigid base frame.

Motor drive shaft is directly connected to thecompressor shaft with a flexible disccoupling. The coupling is of all metalconstruction with no wearing parts to assurelong life, and no lubrication requirements toprovide low maintenance. For units utilizingremote electro-mechanical starters, a largesteel terminal box with gasketed frontaccess cover is provided for field connectedconduit. Overload/overcurrent transformersare furnished for all units with low voltagemotor.

CoolerThe cooler is of the shell-and-tube, floodedtype designed for 12.5 bar working pressureon the refrigerant side, and be tested at 25bar. The shell is fabricated from rolledcarbon steel plate with fusion weldedseams; having carbon steel tube sheets,drilled and reamed to accommodate thetubes; and intermediate tube supportsspaced no more than 0.90 m apart. Therefrigerant side is designed, tested andstamped in accordance with the requiredcodes. Tubes are of the high-efficiency,externally and internally enhanced type.Each tube is roller expanded into the tubesheets providing a leak-proof seal, and beindividually replaceable. Water velocitythrough the tubes shall not exceed 3.6 m/s.Two liquid level sight glasses are located onthe side of the shell to aid in determiningproper refrigerant charge. A suction baffle orstainless mesh eliminators are locatedabove the tube bundle to prevent liquidrefrigerant carryover to the compressor. Thecooler has a refrigerant relief device sized tomeet the requirements of required codes.

Water boxes are removable to permit tubecleaning and replacement. Stub-out waterconnections, having victaulic grooves, areprovided. Water boxes are designed for 10bar design working pressure and be testedat 15 bar. Vent and drain connections withplugs are provided on each water box.

CondenserThe condenser is of the shell-and-tube type,designed for 12.5 bar working pressure onthe refrigerant side, and be tested at 25 bar.The shell is fabricated from rolled carbonsteel plate with fusion welded seams;having carbon steel tube sheets, drilled andreamed to accommodate the tubes; andintermediate tube supports spaced no morethan 1.2 m apart.

A refrigerant sub-cooler is provided forimproved cycle efficiency. The refrigerantside is designed, tested and stamped inaccordance with required codes.

The tubes are high-efficiency, externally andinternally enhanced type. Each tube is rollerexpanded into the tube sheets providing aleak-proof seal, and is individuallyreplaceable. Water velocity through thetubes shall not exceed 3.6 m/s.

Water boxes are removable to permit tubecleaning and replacement. Stub-out waterconnections having victaulic grooves areprovided. Water Boxes are designed for 10bar design working pressure and tested at15 bar. Vent and drain connections withplugs are provided on each water box.

Refrigerant Flow ControlRefrigerant flow to the cooler is controlled byeither a variable or fixed orifice. The variableorifice control is automatically adjusted tomaintain proper refrigerant level in thecondenser and evaporator. This iscontrolled by monitoring refrigerant liquidlevel in the condenser, assuring optimalsubcooler performance.

OptiView Control CentreThe YORK OptiView Control Panel is amicroprocessor based control system for YKcentrifugal chillers. It controls the leavingchilled liquid temperature via pre-rotationvane (PRV) controls and has the ability tolimit motor current via control of the PRV. Itis compatible with the standardelectro-mechanical starter, optional YORKSolid State Starter (SSS) and optionalOptiSpeed Variable Speed Drive (VSD)applications.

The panel has a full screen LCD graphicdisplay with a keypad interface. The graphicdisplay allows the presentation of severaloperating parameters at once. In addition,the operator may view a graphicalrepresentation of the historical operation ofthe unit as well as the present operation.

For ease of use the locations of displayedparameters are clearly and intuitivelymarked and instructions for specificoperations are provided on many of thescreens. Information can be displayed inboth metric (SI - temperatures in °C andpressures in kPa) or English (Imperial -temperatures in °F and pressures in PSIG)units in a number of languages.

The control panel also displays the unitoperation using status and warningmessages and records the cause of anyshutdowns (Safety, Cycling or Normal). Thisinformation is stored in battery backed forviewing.

Home

The 'HOME SCREEN' is displayed bydefault (at the 'VIEW ACCESS LEVEL')when the unit is powered on. This screenshows the main operating values, enablessystem access and permits furthernavigation to the sub screens.

System

The 'SYSTEM SCREEN' displays pressuresand temperatures for the evaporator,condenser, compressor and oil system.Electrical load and current limit are alsoshown.

Evaporator

The 'EVAPORATOR SCREEN' displays acutaway view of the unit evaporator showingcurrent operating temperatures andpressures, status of the flow switch andliquid pump signal and the control setpoints.

The local leaving chilled liquid temperature'SETPOINT' and 'RANGE', and leavingchilled liquid temperature cycling offset'SHUTDOWN' and 'RESTART' values arealso programmed on this screen.


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Condenser

The 'CONDENSER SCREEN' displays acutaway view of the unit condenser showingcurrent operating temperatures andpressures, status of the high pressure andflow switches and cooling liquid pump signaland the refrigerant level position andsetpoint.

Compressor

The 'COMPRESSOR SCREEN' displays acutaway view of the unit compressorshowing current operating temperaturesand pressures and status of the switchesand solenoids.

Oil Sump

The 'OIL SUMP SCREEN' displays the unitoil sump showing current operatingtemperatures and pressures and status ofthe oil pump run signal and solenoid. Thescreen will also provide data for the variablespeed oil pump (VSOP) when fitted.

Motor - Standard York Electro-Mechanical Starter (E/M)

Motor - Optional York Solid StateStarter (SSS)

Motor - Optional York OptiSpeed VSD

The 'MOTOR SCREEN' shows the motorcurrent as a percentage of full load amps(FLA), the current limit setpoint (set locallyor remotely) and the pulldown demand timeremaining, when pulldown demand limitingis active. The 'LOCAL MOTOR CURRENTLIMIT' and 'PULLDOWN DEMAND LIMIT'and 'TIME' are also programmed on thisscreen.

The 'SOLID STATE STARTER SCREEN'shows the SSS rating and operating voltageand current per phase.

The 'VSD SCREEN' shows the outputvoltage, frequency and phase current to themotor, total and cumulative input Kilowattsand PRV position. In addition, supply kVA,power factor and voltage and current totalharmonic distortion are shown on modelswith harmonic filters.

Setpoints

The 'SETPOINTS SCREEN' displays thecurrent operating leaving chilled liquidtemperature setpoint and remote range, lowleaving chilled liquid temperature cyclingshutdown and restart values and thereoffset and the current limit setpoint.

The local leaving chilled liquid temperature'SETPOINT' and 'RANGE', low leavingchilled liquid temperature cycling'SHUTDOWN' and 'RESTART' values,'LOCAL MOTOR CURRENT LIMIT' and'PULLDOWN DEMAND LIMIT' and 'TIME'and 'REMOTE ANALOGUE INPUT RANGE'should be programmed on this screen.

Setup

The 'SETUP SCREEN' displays generalconfiguration parameters as set by themicroprocessor board jumpers and programswitches. In addition, it allows the real timeclock to be enabled, setting of the time anddate and specification of the time format.

History

The 'HISTORY SCREEN' displays details ofthe last normal shutdown, last safety orcycling shutdown and a chronological listingof the last 10 safety or cycling shutdowns.


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Inrush Current

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Time (seconds)

Star Delta Starter

OptiSpeed VSD

Factory Installed Solid StateCompressor Motor Starter(Option) (max. 670 kW, low voltage)Reduced-voltage solid state starter for thecompressor motor. Starter isfactory-mounted and wired on the chiller.The starter provides, through the use ofsilicon controlled rectifiers, a smoothacceleration of the motor without currenttransitions or transients. The starterenclosure is IP 54, with a hinged accessdoor with lock and key. Electrical lugs forincoming power wiring are provided.

Protective devices include: phase rotationprotection; single phase failure protection;momentary power interruption protection;and high/low line voltage protection. Startershall include: three leg sensing overloads;120 volt control transformer for all unitcontrols; and a non-fused disconnect switch.Three-phase voltage and current readingsare coordinated with the unit OptiViewGraphic Control Centre, with digital readouton the display.

OptiSpeed VSD OptionThe OptiSpeed variable speed drive isfactory packaged and mounted on the unit. Itis designed to vary the compressor motorspeed by controlling the frequency andvoltage of the electrical power to the motor.

The adaptive capacity control logicautomatically adjusts motor speed andcompressor pre-rotation vane positionindependently for maximum part loadefficiency by analysing information fromsensors located throughout the unit.

The OptiSpeed VSD eliminates the need fora starter and has a soft startingcharacteristic that never exceeds 100% fullload amps. It also provides automatic powerfactor correction.

An optional harmonic filter limits electricalpower supply distortion from the variablespeed drive and further improves powerfactor correction.

Reduce Energy Costs with AdvancedVariable-Speed TechnologyThe OptiSpeed VSD can dramaticallyreduce energy costs. Annual savings cantypically average 30%. These savings arepossible because no constant-speed chillercan match a OptiSpeed VSD where it reallycounts in real-world energy performance.Real-world energy performance means atoff-design conditions as well as designconditions.

The graph shows typical energy savingswhen a OptiSpeed VSD is installed on anexisting constant-speed chiller. Note thedecrease in energy use as the loaddecreases (off-design condition). Energysavings can reach 75% at light loads.

Pressure Vessel Codes (Option)Pressure vessels can be supplied inconformance with the following codes :

T.U.V. (Germany & Austria)I.S.P.E.S.L. (Italy)D.R.I.R.E. (France)S.A. (Sweden)S.V.D.B. (Switzerland)ASME

Remote Electro-MechanicalCompressor Motor Starter (Option)A remote electro-mechanical starter can besupplied for the compressor motor. Thestarter is supplied in accordance with themanufacturer's starter specifications.

Portable RefrigerantStorage/Recycling System (Option)A portable, self-contained refrigerantstorage/ recycling system consisting of arefrigerant compressor with oil separator,storage receiver, water-cooled condenser,filter drier and necessary valves and hosesto remove, replace and distill HCF-134a. Allnecessary controls and safety devices shallbe a permanent part of the system.

ACCESSORIES & OPTIONS

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Load

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Variable Speed

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YK CB CB G4 5 CM E S

Model

Cooler Code

Condenser Code

Compressor Code

Power Supply (5 for 50Hz)

Motor Code

Design level

Special Modifications

COMPRESSOR COOLER CONDENSERCODE CODE CODE

CB, CC, CD, CE CB, CC, CD, DB, DC, DDDD, DE CB, CC, CD, DB, DC, DD, EB, EC, EDDB, DC, DD DB, DC, DD, EB, EC, EDEC, ED DB, DC, DD, EB, EC, ED, FB, FC, FDFC, FD EB, EC, ED, FB, FC, FDEB EB, EC, ED, FB, FC, FDFB, FC, FD EB, EC, ED, FB, FC, FD, GB, GC, GDGC, GD FB, FC, FD, GB ,GC, GDFB, FC FA, FB, FC, FD, GB, GC, GDGB, GC, GD FA, FB, FC, FD, GB, GC, GDHB, HC GB, GC, GDGB, GC, GD FB, FC, FD, GB, GC, GDHB, HC GB, GC, GDGF, GH GB, GC, GD, HB, HC, HDHF, HH GB, GC, GD, HB, HC, HD, JB, JC, JDJF, JG, JH HB, HC, HD, JB, JC, JDTF, TG, TH TB, TC, TDHF, HH HB, HC, HD, JB, JC, JDJF, JG, JH HB, HC, HD, JB, JC, JDTF, TG, TH TB, TC, TD, VB, VC, VDVF, VH TB, TC, TD, VB, VC, VDWF, WH VB, VC, VDJF, JG, JH JB, JC, JD 5DA – 5DHTF, TG, TH TB, TC, TD, VB, VC, VDVF, VH TB, TC, TD, VB, VC, VDWF, WH VB, VC, VDAB, AC, AD AB, AC, ADBB, BC, BD BB, BC, BD

P1/P2/P3/P4

5CK – 5CU

5DA – 5DH

5DA - 5OJ

MOTOR CODES

5CS – 5DH

5CE – 5CO

5CE – 5CR

5CK – 5CU

5CK – 5CU

H8

J1/J2

J3

J4

G4

H4

H5

H6/H7

IDENTIFICATION

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GRAPHIC CONTROL PANEL


MOTOR TERMINAL BOX

FLOOR LINE(see note 4)

COMPRESSOR

COOLER

COOLER

CONDENSER

CONDENSER

RELIEFVALVES

DIMENSIONS: G & H COMPRESSORS

C–C C–D D–C D–D D–E D–D D–E E–D E–E E–F F–E F–FA 1854 1854 1930 1930 1930 1930 1930 1981 1981 2057 2108 2184B 2400 2451 2400 2451 2464 2451 2464 2451 2464 2527 2464 2527C 483 483 521 521 521 521 521 546 546 546 610 610D 445 445 445 445 445 445 445 445 445 483 445 483E 143 143 143 143 143 143 143 149 149 149 149 149F 521 521 521 521 521 521 521 521 521 521 521 521G 1803 1854 1803 1854 1848 1854 1848 1854 1867 1930 1867 1930H 1111 1111 1264 1264 1264 1264 1264 1264 1264 1264 1289 1289J 359 359 359 359 359 359 359 359 359 359 359 359K 330 330 330 330 330 330 330 330 330 330 330 330L 438 438 438 438 438 438 438 438 438 438 438 464M 965 965 1041 1041 1041 1041 1041 1092 1092 1092 1219 1219N 889 889 889 889 889 889 889 889 889 965 889 965

E–E E–F F–E F–F F–G G–F G–G F–F F–G G–F G–G H–G G–F G–G H–GA 1981 2057 2108 2184 2286 2248 2350 2184 2286 2248 2350 2438 2248 2350 2438B 2464 2527 2464 2527 2628 2527 2628 2527 2628 2527 2628 2686 2527 2628 2628C 546 546 610 610 610 641 641 610 610 641 641 686 641 641 686D 445 483 445 483 533 483 533 483 533 483 533 533 483 533 533E 149 149 149 149 149 159 159 149 149 159 159 159 159 159 159F 521 521 521 521 521 521 521 521 521 521 521 521 521 521 521G 1867 1930 1867 1930 2032 1930 2032 1940 2029 1940 2029 2029 1940 2029 2029H 1264 1264 1289 1289 1289 –––– –––– 1289 1289 ––– ––– ––– ––– ––– –––J 359 359 359 359 359 359 359 359 359 359 359 359 359 359 359K 330 330 330 330 330 330 330 356 356 356 356 356 356 356 356L 438 438 438 464 438 464 438 464 464 464 464 464 464 464 464M 1092 1092 1219 1219 1219 1283 1283 1219 1219 1283 1283 1372 1283 1283 1372N 889 965 889 965 1067 965 1067 965 1067 965 1067 1067 965 1067 1067

Notes:1 All dimensions are approximate. Certified dimensions are available on request.23 Water nozzles can be located on either end of unit. Add 13 mm to nozzle length for flanges connections.4 To determine overall height, add 22 mm for isolators.5 Use of motors with motor hoods may increase overall unit dimensions.

H8 COMPRESSORCLR. – COND.

For compact water boxes (shown above), determine overall unit length by adding water box depth to tube sheet length.

H5 COMPRESSOR H6/H7 COMPRESSORCLR. – COND. SHELL CODES CLR. – COND. SHELL CODES

G4 COMPRESSOR H4 COMPRESSORCLR. – COND. SHELL CODES CLR. – COND. SHELL CODES

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COMPRESSOR

COOLER

MOTOR TERMINAL BOX

CONDENSER

RELIEFVALVE

COMPRESSOR

MOTOR


COOLER

(Shipping width)

CONDENSER

DIMENSIONS: J COMPRESSORS

DIMS. G-G G-H H-G H-H H-J J-H J-J T-T H-H H-J J-HA 2286 2388 2400 2502 2604 2667 2769 2769 2502 2604 2667B 2838 2838 2838 2838 2838 2838 2838 2985 2965 3067 2965C 610 610 667 667 667 749 749 749 667 667 749D 533 584 533 584 635 584 635 635 584 635 584E 4267 4267 4267 4267 4267 4267 4267 4877 4267 4267 4267F 552 552 552 552 552 552 552 552 603 603 603G 375 375 375 375 375 375 375 375 375 375 375M 495 495 495 495 495 495 495 1105 495 495 495N 2108 2261 2108 2261 2261 2261 2261 2261 2153 2254 2153P 381 381 381 381 381 381 381 381 359 359 359R 520 520 520 520 520 520 520 520 622 622 622S 1219 1219 1336 1336 1336 1499 1499 1499 1336 1336 1499T 1067 1168 1067 1168 1270 1168 1270 1270 1168 1270 1168

DIMS. PASS G H J T VDIMS. J-J T-T T-V V-T V-V W-V H 1, 2, 3 149 295 318 318 346

A 2769 2769 2896 2769 2896 3023 1 349 530 549 549 584B 3067 3067 3194 3067 3194 3194 J 2 349 460 495 495 559C 749 749 749 749 749 813 3 349 422 476 476 495D 635 635 699 635 699 699 1 349 530 549 549 584E 4267 4877 4877 4877 4877 4877 K 2 349 460 495 495 559F 603 603 603 603 603 629 3 349 508 559 559 591G 375 375 375 375 375 419M 495 1105 1105 1105 1105 1105N 2254 2254 2381 2254 2381 2381P 359 664 664 664 664 664R 622 622 622 622 622 622S 1499 1499 1499 1499 1499 1626T 1270 1270 1397 1270 1397 1397

Notes:1 All dimensions are approximate. Certified dimensions are available on request.234 To determine overall height, add 22 mm for isolators.5 Use of motors with motor hoods may increase overall unit dimensions.

J1/J2 COMPRESSORS J3 COMPRESSORS

Water nozzles can be located on either end of unit. Add 13 mm to nozzle length for flanges connections.

J3/J4 COMPRESSORSCLR. – COND. SHELL CODES


CLR. – COND.CLR. – COND. SHELL CODES

COOLER – CONDENSER CODES

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MOTOR TERMINAL BOX


COMPRESSOR

COOLER

COOLER

CONDENSER

CONDENSER

RELIEFVALVES

A

B

C D

L

FE

G

JH

M

K

L

DIMENSIONS: P COMPRESSORS

A-A B-B A-A B-BA 1676 1676 1676 1676B 2127 2127 2127 2127C 445 445 445 445D 394 394 394 394E 3657 4876 3657 4876F 370 370 370 370G 370 370 370 370H 370 370 370 370J 370 370 370 370L 1687 1687 1687 1687

A-A B-B A-A B-BA 1676 1676 1676 1676B 2127 2127 2127 2127C 445 445 445 445D 394 394 394 394E 3657 4876 3657 4876F 370 370 370 370G 370 370 370 370H 370 370 370 370J 370 370 370 370L 1687 1687 1687 1687

Notes:1 All dimensions are approximate. Certified dimensions are available on request.23 Water nozzles can be located on either end of unit. Add 13 mm to nozzle length for flanges connections.4 To determine overall height, add 22 mm for isolators.5 Use of motors with motor hoods may increase overall unit dimensions.

CLR. – COND. SHELL CODES


P1 COMPRESSOR P2 COMPRESSORCLR. – COND. SHELL CODESCLR. – COND. SHELL CODES

P3 COMPRESSOR P4 COMPRESSORCLR. – COND. SHELL CODES

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Shipping Operating Refrigerant Loading per Shipping Operating Refrigerant Loading perWeight Weight Charge Isolator Weight Weight Charge Isolator

(kg) (kg) (kg) (kg) (kg) (kg) (kg) (kg)CBCB 7512 8673 465 2168 EBFB 9793 11871 719 2968CBCC 7534 8709 465 2177 EBFC 9866 11971 719 2993CBCD 7598 8800 465 2200 EBFD 9934 12075 719 3019CCCB 7611 8813 465 2203 ECFB 9893 12011 719 3003CCCC 7634 8850 465 2212 ECFC 9966 12111 719 3028CCCD 7698 8940 465 2235 ECFD 10034 12215 719 3054CDCB 7725 8972 465 2243 EDFB 9997 12161 719 3040CDCC 7747 9008 465 2252 EDFC 10070 12256 719 3064CDCD 7811 9099 465 2275 EDFD 10138 12361 719 3090CECB 7829 9122 465 2280 FCEB 9703 11726 748 2931CECC 7852 9158 465 2290 FCEC 9798 11862 748 2965CECD 7915 9249 465 2312 FCED 9839 11925 748 2981CBDB 7752 8995 465 2249 FDEB 9807 11875 748 2969CBDC 7874 9117 465 2279 FDEC 9907 12016 748 3004CBDD 7757 9058 465 2265 FDED 9943 12075 748 3019CCDB 7852 9131 465 2283 FBFA 10020 12170 819 3043CCDC 7974 9258 465 2314 FBFB 10183 12415 819 3104CCDD 7856 9194 465 2299 FBFC 10256 12515 819 3129CDDB 7965 9294 465 2324 FBFD 10324 12619 819 3155CDDC 8088 9417 465 2354 FCFA 10152 12356 819 3089CDDD 7970 9358 465 2339 FCFB 10315 12601 819 3150CEDB 8070 9439 465 2360 FCFC 10392 12705 819 3176CEDC 8192 9566 465 2392 FCFD 10445 12805 819 3201CEDD 8074 9503 465 2376 FDFB 10424 12755 819 3189DDCB 8228 9589 465 2397 FDFC 10496 12850 819 3213DDCC 8251 9625 465 2406 FDFD 10564 12995 819 3239DDCD 8314 9716 465 2429 FBGB 11018 13463 819 3366DECB 8301 9689 465 2422 FBGC 11213 13740 819 3435DECC 8324 9725 465 2431 FBGD 11308 13889 819 3472DECD 8387 9816 465 2454 FCGB 11149 13653 819 3413DBDB 8228 9625 522 2406 FCGC 11345 13926 819 3481DBDC 8346 9743 522 2436 FCGD 11440 14075 819 3519DBDD 8228 9684 522 2421 FDGB 11258 13803 819 3451DCDB 8328 9766 522 2442 FDGC 11453 14080 819 3520DCDC 8451 9893 522 2473 FDGD 11544 14225 819 3556DCDD 8333 9830 522 2457 GBFA 10936 13313 862 3328DDDB 8469 9966 522 2491 GBFB 11104 13563 862 3391DDDC 8591 10088 522 2522 GBFC 11177 13658 862 3414DDDD 8473 10029 522 2507 GBFD 11245 13762 862 3441DEDB 8541 10065 522 2516 GCFA 11091 13531 862 3383DEDC 8664 10188 522 2547 GCFB 11254 13776 862 3444DEDD 8564 10129 522 2532 GCFC 11326 13871 862 3468DBEB 8773 10333 522 2538 GCFD 11394 13975 862 3494DBEC 8868 10474 522 2618 GDFA 11295 13821 862 3455DBED 8909 10533 522 2633 GDFB 11458 14066 862 3517DCEB 8872 10478 522 2620 GDFC 11535 14166 862 3541DCEC 8968 10614 522 2654 GDFD 11603 14270 862 3568DCED 9008 10678 522 2669 GBGB 11939 14610 862 3653DDEB 9013 10673 522 2668 GBGC 12134 14887 862 3722DDEC 9108 10814 522 2703 GBGD 12225 15032 862 3758DDED 9149 10873 522 2718 GCGB 12088 14824 862 3706DEEB 9086 10773 522 2693 GCGC 12283 15100 862 3775DEEC 9181 10909 522 2727 GCGD 12379 15245 862 3811DEED 9222 10973 522 2743 GDGB 12279 15118 862 3780ECDB 8736 10415 635 2604 GDGC 12488 15391 862 3848ECDC 8854 10533 635 2633 GDGD 12583 15536 862 3884ECDD 8736 10474 635 2618 HBGB 12900 15944 1014 3986EDDB 8841 10560 635 2640 HBGC 13095 16221 1014 4055EDDC 8959 10678 635 2669 HBGD 13186 16366 1014 4091EDDD 8841 10619 635 2655 HCGB 13159 16311 1014 4078EBEB 9176 10977 635 2744 HCGC 13354 16588 1014 4147EBEC 9276 11118 635 2779 HCGD 13449 16733 1014 4183EBED 9317 11181 635 2795ECEB 9281 11122 635 2781ECEC 9376 11258 635 2815ECED 9417 11322 635 2830EDEB 9380 11263 635 2816EDEC 9480 11408 635 2852EDED 9521 11467 635 2867

Cooler –CondenserShell Codes


D-D

D-E

C-D

D-C

E-D

E-E

C-C

H-G

G-G

G-F

F-G

F-F

F-E

E-F

UNIT WEIGHTS: G & H COMPRESSORS (Less Motor)

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100



(kg) (kg) (kg) (kg) (kg) (kg) (kg) (kg)GFGB 11748 14538 1095 3634 TFTB 16901 21424 1812 5356GFGC 11943 14787 1095 3697 TFTC 17123 21759 1812 5440GFGD 12039 14923 1095 3731 TFTD 17241 21922 1812 5481GHGB 11925 14792 1095 3698 TGTB 17092 21605 1812 5401GHGC 12120 15114 1095 3778 TGTC 17314 22031 1812 5508GHGD 12215 15218 1095 3805 TGTD 17436 22199 1812 5550GFHB 12392 15400 1161 3850 THTB 17287 21972 1812 5493GFHC 12474 15540 1161 3885 THTC 17509 22308 1812 5577GFHD 12578 15676 1161 3919 THTD 17627 22471 1812 5618GHHB 12569 15654 1161 3913 TFVB 18793 23773 1946 5943GHHC 12651 15794 1161 3949 TFVC 18883 23941 1946 5985GHHD 12755 16379 1161 4095 TFVD 19255 24454 1946 6113HFGB 12710 15459 1191 3865 TGVB 18988 24050 1946 6012HFGC 12900 16094 1191 4023 TGVC 19078 24218 1946 6054HFGD 12996 16239 1191 4060 TGVD 19450 24730 1946 6183HHGB 12950 16162 1191 4040 THVB 19178 24322 1946 6081HHGC 13145 16438 1191 4110 THVC 19269 24490 1946 6122HHGD 13241 16588 1191 4147 THVD 19641 25456 1946 6364HFHB 13349 16674 1281 4169 VFTB 17972 22943 1733 5736HFHC 13272 16819 1281 4205 VFTC 18194 23279 1733 5820HFHD 13540 16956 1281 4239 VFTD 18316 23447 1733 5862HHHB 13594 17024 1281 4256 VHTB 18244 23329 1733 5832HHHC 13676 17001 1281 4250 VHTC 18462 23664 1733 5916HHHD 13780 17300 1281 4325 VHTD 18584 23832 1733 5958HFJB 14211 17817 1365 4454 VFVB 19369 24798 1882 6200HFJC 14402 18108 1365 4527 VFVC 19459 24966 1882 6242HFJD 14511 18257 1365 4564 VFVD 19831 25479 1882 6370HHJB 14456 18167 1365 4542 VHVB 19636 25184 1882 6296HHJC 14642 18452 1365 4613 VHVC 19727 25347 1882 6337HHJD 14751 18602 1365 4651 VHVD 20099 25860 1882 6465JFHB 14701 18407 1501 4602 WFVB 20947 27148 2023 6787JFHC 14783 18548 1501 4637 WFVC 21038 27311 2023 6828JFHD 14887 18679 1501 4670 WFVD 21410 27824 2023 6956JGHB 14869 18643 1501 4661 WHVB 21569 28028 2023 7007JGHC 14951 18784 1501 4696 WHVC 21655 28191 2023 7048JGHD 15055 18920 1501 4730 WHVD 22031 28708 2023 7177JHHB 15032 18879 1501 4720JHHC 15118 19024 1501 4756 Note:JHHD 15209 19160 1501 4790 Weights for J Compressor Units for Shell Codes G-G through T-TJFJB 15563 19550 1585 4888 are based on J1/J2 Compressors.JFJC 15749 19836 1585 4959 Add 454 kg to Shipping Weight and Operating Weight, and 113 kg to LoadingJGJD 15858 19981 1585 4995 per Isolator if J3/J4 Compressor is furnished.JGJB 15822 19786 1585 4947JGJC 15917 20072 1585 5018JGJD 16026 20221 1585 5055JHJB 15894 20022 1585 5005JHJC 16080 20312 1585 5078JHJD 16194 20462 1585 5115

W-V

G-G

G-H

H-G

H-H



H-J

J-H

J-J

T-T

T-V

V-T

V-V

UNIT WEIGHTS: J COMPRESSORS (Less Motor)

Code (kg) Code (kg) Code (kg) Code (kg) Code (kg) Code (kg) Code (kg)5CE 1211 5CM 1678 5CU 2630 5DE 3402 5CE 427 5CM 1195 5CU 26085CF 1406 5CN 1678 5CV 2630 5DF 3402 5CF 653 5CN 1195 5CV 26085CG 1406 5CO 2041 5CW 3084 5DG 3583 5CG 653 5CO 1195 5CW 30845CH 1406 5CP 2041 5CX 3084 5DH 3583 5CH 771 5CP 1329 5CX 30845CI 1406 5CQ 2041 5DA 3198 5OJ * 5CI 771 5CQ 1329 5DA 33115CJ 1678 5CR 2041 5DB 3311 * Contact York 5CJ 771 5CR 1329 5DB 33115CK 1678 5CS 2041 5DC 3311 5CK 771 5CS 13295CL 1678 5CT 2630 5DD 3311 5CL 1195 5CT 2608

High Voltage Low Voltage

MOTOR WEIGHTS (Approximate)


(kg) (kg) (kg) (kg) (kg) (kg) (kg) (kg)ABAB 5001 6012 568 1503 BBBB 5589 6876 704 1719ABAC 5120 6189 568 1547 BBBC 5709 7072 704 1768ABAD 5266 6405 568 1601 BBBD 5856 7314 704 1828ACAB 5083 6130 568 1532 BCBB 5701 7035 704 1759

A-A ACAC 5202 6306 568 1577 B-B BCBC 5821 7231 704 1808ACAD 5348 6523 568 1631 BCBD 5968 7473 704 1868ADAB 5187 6279 568 1570 BDBB 5845 7239 704 1810ADAC 5306 6455 568 1614 BDBC 5965 7435 704 1859ADAD 5452 6672 568 1668 BDBD 6112 7677 704 1919



UNIT WEIGHTS: P COMPRESSORS (Less Motor)

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100


P Q

C CCOND. COND.

CC CC

REAROF

UNIT

REAROF

UNIT

GG GGFLOOR LINECOMPRESSOR END MOTOR END

22 22

L L

F N

G P

W Y

V XC C

C C

COOLER COOLER

COND. COND.BB BB

DD DD

FF FF

DD DD

BB BB

FRONTOPTIVIEW

REAROF

UNIT

REAROF

UNIT

GG GGFLOOR LINE COMPRESSOR END MOTOR ENDFLOOR LINE

COMPRESSOR END MOTOR END22 2222 22

L L

L L

S U

R T

C CCOND. COND.

DD DD

BB BB

REAROF

UNIT

REAROF

UNIT

GG GGFLOOR LINECOMPRESSOR END MOTOR END

22 22

L L

CONDENSERS COOLERS

A H

C CCOOLER COOLER

AA AA

FF FF

FRONTOPTIVIEW

COMPRESSOR END MOTOR ENDFLOOR LINE

22 22

L L

1-PASS

1-PASS

B K

D M

C J

E L

C C

COOLER

COOLER

COOLER

COOLER

BB BBDD DD

FF FF

EE EEEE EE

FRONTOPTIVIEW

COMPRESSOR END MOTOR END

FLOOR LINE22 22

L L

2-PASS C, D, E, F, G & H SHELL

2-PASS

3-PASS3-PASS

2-PASS A & B SHELL

B KC J

BB BB

FF FF

EE EEEE EE

22 22

COOLER COOLERFRONTOPTIVIEW


FLOOR LINE

WATER BOX NOZZLE ARRANGEMENTS: G, H & P COMPRESSORS

No.of Passes In OutAA FF BB DD EE FF BB DD FF 1 2 3 A H

A, B 635 444.5 432 838 444.5 432 838 444.5 DN 250 DN 200 DN 150 H AC 467 483 365 568 178 483 318 616 483 DN 300 DN 200 DN 150 2 D C

DB, DC, DD 473 521 346 600 229 521 295 651 521 DN 300 DN 200 DN 200 A , B Shell E BDE 502 521 375 629 229 521 324 679 521 DN 300 DN 200 DN 200 2 D CE 489 546 362 616 229 546 311 667 546 DN 350 DN 250 DN 200 C, D E BF 521 610 394 648 229 610 343 699 610 DN 350 DN 250 DN 200 E, F L KG 549 641 397 702 273 641 321 778 641 DN 400 DN 300 DN 250 G, H Shell M JH 578 686 425 730 273 686 349 807 686 DN 400 DN 300 DN 250 G N

P F

1

3

COOLER NOZZLE POSITIONS COOLER NOZZLE DIMENSIONS COOLER NOZZLE ARRANGEMENTS

No. of PassesShell Code

1-Pass 2-Pass 3-Pass

No. of Passes In OutCC GG BB DD GG BB DD GG 1 2 3 P Q

A, B 787 393.5 590 984 393.5 590 984 393.5 DN 300 DN 200 DN 150 Q PC 908 445 730 1086 445 756 1099 445 DN 250 DN 200 DN 150 R SD 908 445 730 1086 445 756 1111 445 DN 300 DN 200 DN 150 T UE 946 445 743 1162 445 768 1175 445 DN 350 DN 250 DN 200 V YF 984 483 737 1232 483 768 1257 483 DN 400 DN 300 DN 250 X WG 1035 533 762 1308 533 794 1314 533 DN 400 DN 350 DN 250

1

2

3

ShellCode

CONDENSER NOZZLE POSITIONS CONDENSER NOZZLE DIMENSIONS

No. of PassesCONDENSER NOZZLE ARRANGEMENTS

1-Pass 2-Passes 3-Passes

NotesA. Standard water nozzles are furnished as welding stub-outs with Victaulic grooves, allowing

the option of welding, flanges, or use of Victaulic couplings. Factory installed PN10 or PN20round slip-on water flanged nozzles are optional. Companion flanges, nuts, bolts andgaskets are not furnished.

B. One, two and three pass nozzle arrangements are available only in pairs shown and for allshell codes. Any pair of cooler nozzles may be used in combination with any pair ofcondenser nozzles.

C. Condenser water must enter the water box through the bottom connection for properoperation of the subcooler to achieve rated performance.

D. Connected piping should allow for removal of compact water box for tube access andcleaning.

E. Allow 4267mm tube pulling space either end.

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100


1-PASS1-PASS

2-PASS

3-PASS3-PASS

A H

AA AA

FF22 22

F N

BB BB

FF FF22 22

P Q

COND. COND.

CC CC

GG GG22 22

S U

R T

COND. COND.

DD DD

BB BB

GG GG22 22

W Y

V X

COND. COND.

DD DD

BB BB

GG GG22 22

REAROF

UNIT

REAROF

UNIT

REAROF

UNIT

REAROF

UNIT

REAROF

UNIT

REAROF

UNIT

FLOOR LINE

FLOOR LINE

FLOOR LINE

COMPRESSOR END

COMPRESSOR END

COMPRESSOR END

MOTOR END

MOTOR END

MOTOR END

CONDENSERS COOLERS

COOLER

COOLER

COOLER

COOLER

FRONTOPTIVIEW

FRONTOPTIVIEW

COMPRESSOR END

COMPRESSOR END

MOTOR END

MOTOR END

FLOOR LINE

2-PASS

B KC J

BB BB

FF FF

EE EEEE EE

22 22

COOLER COOLERFRONT

OPTIVIEW


FLOOR LINE

FLOOR LINE

WATER BOX NOZZLE ARRANGEMENTS: J COMPRESSORS

No.of Passes In OutAA FF BB EE FF BB FF 1 2 3 A H

G 587 610 587 279 610 587 610 DN 350 DN 250 DN 200 H AHF 629 667 629 279 667 629 667 DN 400 DN 300 DN 250 B CHH 648 667 648 279 667 648 667 DN 400 DN 300 DN 250 C BJ 654 749 654 279 749 654 749 DN 450 DN 350 DN 300 J KT 654 749 654 279 749 654 749 DN 450 DN 350 DN 300 K JV 743 749 743 330 749 743 749 DN 500 DN 400 DN 350 F NW 794 813 794 381 813 794 813 DN 500 DN 450 DN 350 N F

1

2

3

Shell Code

COOLER NOZZLE DIMENSIONS

No. of PassesCOOLER NOZZLE ARRANGEMENTSCOOLER NOZZLE POSITIONS


No. of Passes In OutCC GG BB DD GG BB DD GG 1 2 3 P Q

G 1035 533 762 1308 533 794 1314 533 DN 400 DN 350 DN 250 Q PH 1086 584 806 1365 584 794 1410 584 DN 500 DN 400 DN 300 R SJ 1137 635 819 1454 635 845 1492 635 DN 500 DN 400 DN 350 T UT 1137 635 819 1454 635 845 1492 635 DN 500 DN 400 DN 350 V YV 1200 699 857 1543 699 895 1597 699 DN 500 DN 450 DN 350 X W

1

2

3

CONDENSER NOZZLE POSITIONS

ShellCode


CONDENSER NOZZLE DIMENSIONS

No. of PassesCONDENSER NOZZLE ARRANGEMENTS

NotesA. Standard water nozzles are furnished as welding stub-outs with Victaulic grooves, allowing

the option of welding, flanges, or use of Victaulic couplings. Factory installed PN10 or PN20round slip-on water flanged nozzles are optional. Companion flanges, nuts, bolts andgaskets are not furnished.

B. One, two and three pass nozzle arrangements are available only in pairs shown and for allshell codes. Any pair of cooler nozzles may be used in combination with any pair ofcondenser nozzles.

C. Condenser water must enter the water box through the bottom connection for properoperation of the subcooler to achieve rated performance.

D. Connected piping should allow for removal of compact water box for tube access andcleaning.

E. Allow 4267mm tube pulling space either end.

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100


SOLID STATE STARTER / VSD LOCATION (Optional)

COMPRESSOR MOTOR POWERCONNECTION ENTRANCE

POWER WIRING ENTRANCE COVER WITH 22mm DIA.KNOCKOUTS USED AS LEAD HOLES FOR POWERWIRING CONDUIT CONNECTORS

SOLID STATESTARTER

OF POWERCONNECTION LOCATION

CL

FRONT OFUNIT

FRONT OF UNIT

CONDENSER

POWER WIRINGENTRANCE LOCATION

VA VJ

VB

VD

A102mm

C

VF

VHVG

VE

CONDENSER

VARIABLE SPEEDDRIVE

COMPRESSOR MOTOR POWERCONNECTION ENTRANCE

FRONT OFUNIT

FRONT OF UNIT

B

SA (mm) 864 889 VA (mm) 1372 1499 1499SB (mm) 543 645 VB (mm) 1118 1194 1295SC (mm) 432 533 VC (mm) 533 533 558SD (mm) 279 305 VD (mm) 483 483 670SF (mm) 559 584 VE (mm) 200 175 378SG (mm) 138 151 VF (mm) 762 889 915SH (mm) 421 433 VG (mm) 194 206 241

Weight (kg) 91 136 VH (mm) 568 682 508VJ (mm) 114 — —

Weight (kg) 520 590 1043

Solid StateStarter Model

7 LK to14 LK

26 LK to33 LK

CF-CN, 5CC-5CI

CP-CT, 5CJ-5CM

CU-CZ, 5CN-5CS

Model VSD

COMPRESSOR DIMENSIONS

Compressor A (mm) B (mm) C (mm) D (mm) Weight (kg)G4/H4/H5 1026 949 854 171 1588

H3/H6/H7/H8 1067 949 854 171 1588J1/J2 1216 1121 933 178 1814J3/J4 1416 1207 1035 178 2268

P1/P2/P3/P4 761 570 894 175 647

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100


REFRIGERANT FLOW DIAGRAM

R3/

8

DN

350

DN

350

R3/4

R3/

8

R3/

4

R3/

4

R1/

4

R1/

4

R1/

4

DN

350

A

BC

DN200

Ø3/

4ac

(Ø19

,1)

5

DN

300

DN

300

R4

R3/

8R

4

6

712

8

13

11

1

DN65

3/8"

cu

OU

M39

x2D

IN23

53M

24x1

,510

R20

SG

041

SG

042

SG

010

PR

V

010

TC

V

040

MP

H

040

2

ZT

040

TT

040

PT

042

ZS

L

010

TE

030

OY

040

PT

030

TE

092

TE

091

PT

010

PT

041

TE

040

OH

041

TS

H

041

WATER

WATER

+32

°C

°C+2

7

+12

°C

°C+6

DN

20

Ø3/8"cu

R4

Ø1/

4"cu

3/4

ac(Ø

19,1

)

Ø3/

4ac

(Ø19

,1)

Ø3/4ac(Ø19,1)

14R

3/4

PW

030

PW

010

R3/

4

14

SG

030

Ø1ac(Ø25,4)

R3/4

R1/

4

13

3/8"cu

XY

030

R3/

8

PY

040

3-4

DN100

DN

80D

N15

0

PS

V

032 ba

r16

,2

PS

V

031 ba

r16

,2

DN

40 DN32

DN

1"5/

8

PS

V

010 ba

r12

,4

DN

50

DN40

DN

1"5/

8

TE

094

TE

093

PS

H

031

DN6

PS

H

032

DN

20

DN

25

LCV

030

LT 030

Cus

tom

erYo

rk

Cus

tom

erYo

rk

York

York

York

Cus

tom

er

Cus

tom

er

PT30 CONDENSER PRESSURE LCV EXPANSION VALVE 1 COMPRESSOR 8 FILTERPT41/42 OIL PRESSURE PCV PRESSURE CONTROL VALVE 2 MOTOR 9 ORIFICE

PT10 COOLER PRESSURE TCV TEMP. CONTROL VALVE 3 CONDENSER 10 CHARGEPSH31/32 HIGH PRESSURE CUTOUT MPH OIL MOTO-PUMP 4 SUB-COOLER 11 EDUCTOR

TE TEMPERATURE SENSOR OH OIL HEATER 5 COOLER 12 3 WAY VALVEPRV PRE-ROTATION PSV SAFETY VALVES 6 OIL COOLER 13 FILTER DRYER

XY/OY/PY SOLENOID VALVE TT HIGH SPEED DRAIN TEMP. 7 OIL RECEIVER 14 TRANSFERLT LEVEL TRANSMITTER TCV030HOT GAS BY-PASSSG SIGHT GLASS PGD PROX. GAP DISTANCE

LEGEND

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100

0

5

25

75

95

100

INSTALLATION CONDITIONS - LIMITSThe following discussion is a user guide in the application andinstallation of chillers to ensure the reliable, trouble-free life forwhich this equipment was designed. While this guide is directedtowards normal, water-chilling applications, the YORK salesrepresentative can provide complete recommendations on othertypes of applications.

LocationThe chillers are virtually vibration free and may generally be locatedat any level in a building where the construction will support the totalsystem operating weight.

The unit site must be a floor, mounting pad or foundation which islevel within 6mm and capable of supporting the operating weight ofthe chiller.

Sufficient clearance to permit normal service and maintenance workshould be provided all around and above the unit. Additional spaceshould be provided at one end of the unit to permit cleaning of coolerand condenser tubes as required. A doorway or other properlylocated opening may be used.

The chiller should be installed in an indoor location wheretemperatures range from 4° to 43°C.

Water CircuitsFlow Rate - For normal water chilling duty, cooler and condenserflow rates are permitted to any velocity level between 1 m/s and 3.6m/s. Flow should be maintained constant at all loads.

Temperature Ranges - For normal water chilling duty, leavingchilled water temperatures may be selected between 4° and 10°Cfor water temperature ranges between 2° and 11°C.

Water Quality - The practical and economical application of liquidchillers requires that the quality of the water supply for thecondenser and cooler be analysed by a water treatment specialist.Water quality may affect the performance of any chiller throughcorrosion, deposition of heat-resistant scale, sedimentation ororganic growth. These will hurt chiller performance and increaseoperating and maintenance costs. Normally, performance may bemaintained by corrective water treatment and periodic cleaning oftubes. If water conditions exist which cannot be corrected by properwater treatment, it may be necessary to provide a larger allowancefor fouling, and/or to specify special materials of construction.

General Piping - All chilled water and condenser water pipingshould be designed and installed in accordance with acceptedpiping practice. Chilled water and condenser water pumps shouldbe located to discharge through the chiller to assure positivepressure and flow through the unit. Piping should include offsets toprovide flexibility and should be arranged to prevent drainage ofwater from the cooler and condenser when the pumps are shutdown. Piping should be adequately supported and bracedindependent of the chiller to avoid the imposition of strain on chillercomponents. Hangers must allow for alignment of the pipe. Isolatorsin the piping and in the hangers are highly desirable in achievingsound and vibration control.

Convenience Considerations - With a view to facilitating theperformance of routine maintenance work, some or all of thefollowing steps may be taken by the purchaser. Cooler andcondenser water boxes are equipped with plugged vent and drainconnections. If desired, vent and drain valves may be installed withor without piping to an open drain. Pressure gauges with stop cocks,and stop valves, may be installed in the inlets and outlets of thecondenser and chilled water line as close as possible to the chiller.An overhead monorail or beam may be used to facilitate servicing.

Connections - The standard chiller is designed for 10 bar designworking pressure in both the chilled water and condenser watercircuits. The connections (water nozzles) to these circuits arefurnished with grooves for Victaulic couplings. Piping should bearranged for ease of disassembly at the unit for performance of suchroutine maintenance as tube cleaning. All water piping should bethoroughly cleaned of all dirt and debris before final connections aremade to the chiller.

Chilled Water - The chilled water circuit should be designed forconstant flow. A flow switch must be installed in the chilled water lineof every unit. The switch must be located in the horizontal pipingclose to the unit, where the straight horizontal runs on each side ofthe flow switch are at least five pipe diameters in length. The switchmust be electrically connected to the chilled water interlock positionin the unit OptiView Control Centre. A water strainer of maximum3.2 mm mesh must be field-installed in the chilled water inlet line asclose as possible to the chiller. If located close enough to the chiller,the chilled water pump may be protected by the same strainer. Theflow switch and strainer assure chilled water flow during unitoperation. The loss or severe reduction of water flow could seriouslyimpair the chiller performance or even result in tube freeze up.

Condenser Water - The chiller is engineered for maximumefficiency at both design and part load operation by takingadvantage of the colder cooling tower water temperatures whichnaturally occur during the winter months. Appreciable powersavings are realized from these reduced heads. Exacting control ofcondenser water temperature, requiring an expensive cooling towerbypass, is not necessary for most applications.

When equipped with the variable orifice, the chiller only requires thatthe minimum entering condenser water temperature be equal to orhigher than 5°C above the leaving chilled water temperature at theusual full load design of 5°C condenser water temperature range.When equipped with the variable orifice, the minimum enteringcondenser water temperature for other full and part load conditionsis provided by the following equation:

Min. ECWT = LCHWT - C RANGE + 9,5°C

Where:ECWT = entering condenser water temperatureLCHWT = leaving chilled water temperatureC RANGE = condenser water temperature range

At initial startup, entering condensing water temperature may be asmuch as 14°C colder than the standby chilled water temperature.Cooling tower fan cycling will normally provide adequate control ofentering condenser water temperature on most installations.


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NOTES1. Do not scale. Do not use for construction unless certified.

Dimensions symmetrical around except as shown.

2. Overall dimensions shown do not include external piping.Piping clearances must be provided as required. Serviceclearance must be provided as follows: 600 mm at rear andoverhead, 1000 mm at front. If a clear space is not available atone end for compressor removal, allow a minimum clearancewidth (at unit front or rear) of 1100 mm. Tube removal spacemust be provided at either end.

3. No special foundation required. Floor must be flat and levelwithin 6 mm, capable of carrying the operating weight.Standard unit is provided with neoprene vibration isolatormounts (shims for leveling by others) Add 22 mm to unit heightfor neoprene mounts to obtain installed height.

All units for upper floor location require optional (at extra cost)level-adjusting spring type vibration isolators and brackets; add25 mm to unit height for spring isolator mounts to obtaininstalled height.

4. Dimension "B" is height of factory assembled unit - add 150 mmfor shipping skids (optional at extra cost). Add 180 kg toshipping weight for skids.

5. Standard water nozzles are furnished as welding shut-outs withgrooves, allowing the option of welding, flanges, or use ofVictaulic couplings.

6. Dimensions shown in "Dimensions" section are factoryassembled units. Consult York for units shipped in separatedmodules (compressor/motor assembly, cooler and/orcondenser modules).

7. Factory insulation of cooler surface is optional at extra cost.Factory insulation does not include cooler water boxes. Add 57kg to the unit weight, when this option is chosen.

8. For flanges (optional) water nozzles, add to overall length ofunit :26 mm when nozzles are on both ends of unit;13 mm when nozzles are on one end only.

9. Connected piping should allow for removal of compact waterboxes for tube access and cleaning.

10. Remove protective fittings from relief connections. The reliefconnections should be vented outside the building by means ofa properly sized line in accordance with European standardsand national Safety and Health codes.

11. For Microcomputer OptiView Graphic Control Centre WiringDiagram, see Product Dwg. No. 213968 (units with Solid StateStarter) or Dwg. No. 214099 (units having remoteElectro-Mechanical Starter).

12. The unit should be connected in a workmanlike manner. Use noaluminium-core cables. Copper-core cabling alone isacceptable. Disconnect switches and fuses should be sized asa function of service.

13. Consult York for control panel supply modifications.

Weights14a. Shipping Weights - Indicates heaviest single piece of

equipment to rig. Weights include OptiView Graphic ControlCentre, oil charge and isolator pads. Weights shown DO NOTinclude:Motor: see Unit Weights and Refrigerant Charges;Refrigerant: see Unit Weights and Refrigerant Charges;Thermal Insulation: add 57 kg;Shipping Skid: add 181 kg;Solid State Starter: add 91kg (7L, 14L) or 137 kg (26L, 33L).

14b. Operating Weights: Weights shown include OptiView GraphicControl Centre, oil, water, refrigerant operating charge andfactory insulation of cooler. Weights shown DO NOT includemotor or Solid State Starter - add weight for motor andweights shown above for Solid State Starter.

14c. Loading Per Isolator - Equals Operating Weight divided by 4.Add motor weight divided by 4. If Solid State Starter suppliedadd weights shown above divided by 4.

14d. Motor Weights - Not included in Shipping Weights orOperating Weights. Add weights given in Unit Weights andRefrigerant Charges.

15. Floor layout shown is for neoprene vibration isolator pads. Ifoptional level-adjusting spring type vibration isolators are tobe applied see "Floor Layout - Spring Isolators".

16. When neoprene isolators are ordered, mounting plates arefactory installed as shown in Neoprene Isolators. Neopreneisolator pads are field installed between foot support andfloor.

17. For a given chiller, all four neoprene isolator pads areidentical. Pads are 25 mm thick with nominal 4 mm staticdeflection. Floor contact dimension depends upon operatingweight; determine operating weight, (see Note 14b) and referto "Neoprene isolator" section for pad size.

18. When spring isolators are ordered, mounting brackets arefactory installed as shown in Spring Isolators.

19. 22 mm Dia. knockouts are located on the top cover for leadhole of the Solid State Starter (when furnished) for field powerwiring conduit (flexible) connections (holes to be sized and cutby others).

20. Dimensions and weights shown on this drawing apply only tocooler and condenser shells having 10 bar water side.


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