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York STYLE A YCWS User's Manual

1. to service the unit are as follows 5 J 8 Rear to Wall 1 8 TM WE Front to Wall 2 8 VIEW SHOWING CUSTOMER POWER ENTRY Top 18 LOCATIONS ON UNDERSIDE OF PANEL Tube cleaning and removal 8 either end 56 91 4 2 Shipping skids not shown will increase the height of the by 6 but MUST be removed upon in if 2 10 stallation 3 Spring and neoprene isolators will increase the over Le E g all height of the unit by approximately 3 VIEW SHOWING DIMENSIONS FOR 200 230V PANEL YORK INTERNATIONAL 33 Mounting Dimensions mm BB GC 603 603 603 654 654 654 654 162 4 HOLES 19mm DIA FOR MOUNTING BOLTS Y ORIGIN 6 X Eft i CC ged VIEW SHOWING ISOLATOR MOUNTING LOCATIONS gt X TO RIGGING HOLE Center of gravity mm T 2 YCWS0100SC 1442 862 RIGGING YCWS0120SC 1464 866 HOLES YCWS0140SC 1443 870 gt M YCWS0180SC 2031 920 K YCWS0200SC 2026 925 L WATER OUTLET YCWS0220SC 2034 928 2 COE ON YCWS0240SC 2029 932 152 24 d T V CONDENSER WATER INL
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3. 51 a YORK Baca BAD Vk Peeper LSA 1756 13 fola EEA BOD Subject in charge aera Penne irs LEA Copyright O by York eration Conor APR veri ALL PE SERVED Form 201 24 EG1 701 RPC 3M 701 4 16 New Release Codes DXS ET
4. 500 KCM 4 3 0 AWG YCWS0220SC 2 0 500 4 3 0 AWG 250 500 KCM 4 3 0 AWG 250 500 KCM 4 3 0 AWG te Ade YCWS0240 H i H 4 3 0 AW YCWS0100SC 6 1 0 AWG 8 2AWG 14 1 0 AWG 8 2AWG 4 300 KCM 8 2AWG YCWS0120SC 2 4 0 AWG 8 2AWG 4 300 KCM 8 2AWG 4 300 KCM 6 1 0 AWG YCWS0140SC 2 4 0 AWG 8 2AWG 4 300 KCM 8 2AWG 4 300 KCM 6 1 0 AWG YCWS0180SC 2 4 0 AWG 8 2 AWG 4 300 KCM 8 2 AWG 4 300 KCM 6 1 0 AWG YCWS0200SC 2 4 0 AWG 8 2 AWG 4 300 KCM 8 2 AWG 4 300 KCM 6 1 0 AWG YCWS0220SC 2 4 0 AWG 8 2AWG 4 300 KCM 6 1 0 AWG 6 350 KCM 6 1 0 AWG YCWS0240SC 2 4 0 AWG 8 2 ANG 4 300 KCM 6 1 0 AWG 6 350 KCM 6 1 0 AWG YCWS0100SC 6 1 0 AWG 8 2 AWG 14 1 0 AWG 8 2 AWG 14 1 0 AWG 8 2AWG YCWS0120SC 6 1 0 AWG 8 2AWG 4 300 KCM 8 2AWG 4 300 KCM 8 2AWG YCWS0140SC 6 1 0 AWG 8 2AWG 4 300 KCM 8 2AWG 4 300 KCM 8 2AWG YCWS0180SC 2 4 0 AWG 8 2AWG 4 300 KCM 8 2AWG 4 300 KCM 6 1 0 AWG YCWS0200SC 2 4 0 AWG 8 2AWG 4 300 KCM 8 2AWG 4 300 KCM 6 1 0 AWG YCWS0220SC 2 4 0 AWG 8 2AWG 4 300 KCM 8 2AWG 4 300 KCM 6 1 0 AWG oe YCWS0240SC 2 4 0 AWG 8 2AWG 4 300 KCM 8 2AWG 4 300 KCM 6 1 0 AWG YCWS0100SC 18 2 AWG 8 2AWG 14 1 0 AWG 8 2AWG 14 1 0 AWG 8 2AWG YCWS0120SC 6 1 0 AWG 8 2AWG 14 1 0 AWG 8 2AWG 2 4 0 AWG 8 2AWG YCWS0140SC 6 1 0 AWG 8 2AWG 14 1 0 AW
5. tered facility including all interconnecting refrigerant pip ing and internal wiring of controls mounted on a steel base which accommodates the condenser compressor s and evaporator Operating test shall in clude operation with water flowing through the evapora tor Unit shall be painted with Caribbean Blue enamel The unit shall be shipped with a full operating charge of R 22 The unit shall contain two separate refrigerant cir cuits each with a single compressor for standby opera tion All units shall be designed and constructed in ac cordance with the applicable sections of the following American Society of Heating Refrigeration and Air Con ditioning Engineers ANSI ASHRAE 15 Safety Code for Mechanical Refrigeration American Society of Mechani cal Engineers ASME Pressure Vessel Code National Electrical Code National Fire Protection Association NFPA 70 The unit shall be produced at an ISO 9001 registered facility All chillers are rated in accordance with ARI Standard 550 590 COMPRESSORS Compressors shall be direct drive semi hermetic ro tary twin screw type including internal muffler tempera ture actuated off cycle heater terminal box internal dis charge check discharge and suction shutoff service valves and precision machined cast iron housing De sign working pressure of entire compressor suction to discharge shall be 31 bar 450psig Motors shall feature refrigerant suction gas cooled two pole a
6. 1 CHILLER MODEL YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC 2 4 0 AWG 2 4 0 AWG 2 0 500 KCM 2 0 500 KCM 2 0 500 KCM 500 KCM 2 82 4 0 AWG 2 4 0 AWG 2 4 0 AWG 2 300 KCM 2 300 KCM 2 0 500 KCM 2 0 500 KCM 2 0 500 KCM 6 1 0 AWG 6 1 0 AWG 2 4 0 AWG 2 4 0 AWG 2 4 0 AWG 2 4 0 AWG 2 4 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 2 4 0 AWG 2 4 0 AWG 2 4 0 AWG 18 2 AWG 18 2 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 2 4 0 AWG TERMINAL BLK CUSTOMER GROUND 8 2AWG 8 2AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 2 6 1 0 AWG 8 2AWG 8 2AWG 6 1 0 AWG 6 1 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG NOTES for Electrical Data on pages 26 28 4 300 KCM
7. A doorway or win dow can sometimes provide space for tube removal Units should be installed indoors where they are not ex posed to rain or water splash Chillers should be located near a drain The use of chillers in corrosive dusty or explosive atmospheres should be avoided unless the unit is properly protected A unit located in a clean room will run best require least maintenance and last long est Heat or ventilation may be required to maintain the ambient between 40 F and 115 F 4 4 C and 46 1 UNIT ISOLATION The chiller foundation must be rigid to reduce vibration transmission to a minimum All upper story installations should use vibration isolators under the unit base To maintain isolator efficiency no mechanical ties should be made to the building Properly selected flexible con nectors and piping isolators are recommended All the above recommendations will help to reduce vibration transmission and result in a quieter operation FIELD CONNECTED WATER PIPING Piping must comply in all respects with applicable local plumbing codes and ordinances In no case should the unit support the weight of connecting piping Since el bows tees and valves increase pressure drop all pip ing should be kept as simple as possible Hand stop valves should be installed where required to facilitate servicing Piping to the inlet and outlet connections of the cooler and condenser may include high pressure rubber hose or piping loo
8. C stomer Wiring Data a i S 42 Typical Control Panel Wiring 44 ee 46 GUIDE 5 sissies 47 Nomenclature S 0140 S 46 W Y A YC York Chiller Design W Water cooled Type Start Y Star Delta S Screw Compressor Voltage Code 17 200 3 60 28 230 3 60 40 380 3 60 46 460 3 60 Nominal Capacity in Tons Refrigerant C 22 5g 575 3 60 S Standard Efficiency 2 YORK INTERNATIONAL FORM 201 24 EG1 Introduction York YCWS Water Cooled Screw Chillers YORK YCWS Water Cooled models provide chilled water for all air conditioning applications that use central station air handling or terminal units They are completely self contained and are designed for indoor new or retrofit installation Each unit includes accessible semi hermetic screw compressors a liquid cooler water cooled condenser and a user friendly diagnostic Microcomputer Control Center all mounted on a rugged steel base The units are produced at an ISO 9001 registered facility The YCWS chillers have certified ratings in accordance with Standard 550 590 YORK INTERNATIONAL Specifications GENERAL The Liquid Chiller will be completely assembled with all interconnecting refrigerant piping and internal wiring ready for field installation The unit will be pressure tested evacuated an
9. YCWS0120SC YCWS0220SC Load COP Load 100 45 100 75 47 75 50 6 2 50 25 4 1 25 5 32 YOWSU0sSC YCWS0240SC Load kwo kWi Load kWo kwi 100 10096 7596 75 50 i 50 25 2596 5 65 6 21 YCWS0180SC Load 100 75 50 25 Rated in accordance with ARI Standard 550 590 YORK INTERNATIONAL 27 Physical Data MODEL YCWS General Unit Data Nominal Unit Capacity Tons Number of Independent R efrigerant Circuits Refrigerant Charge R22 Ckt 2 Ibs Oil Charge Ckt 1 Ckt 2 gal Shipping Weight Ibs Operating Weight Ibs Compressors Semi Hermetic Twin Screw Quantity per Chiller Nominal Size Ckt 1 Ckt 2 Condenser Code Water Volume gal Maximum Water Side Pressure psig Maximum Refrigerant Side Pressure psig Dia X Length inches Water Nozzle Connection Size inches Evaporator Direct Expansion Code Water Volume gals Maximum Water Side Pressure psig Maximum Refrigerant Side Pressure psig Dia X Length inches Water Nozzle Connection Size inches MODEL YCWS General Unit Data Nominal Unit Capacity kW Number of Independent R efrigerant Circuits Refrigerant Charge R22 Ckt 1 Ckt 2 kgs Oil Charge Ckt 1 Ckt 2 I Shipping Weight kg Operating Weight kg Compressors Semi Hermetic Twin Screw Quantity per Chiller Nominal Size Ckt 1 Ckt 2 Condenser Code Water Volume I Maximum Water Side Pressure barg Maximum Refrigerant Si
10. YCWS0140SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 YCWS0180SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 NOTES 1 Tons Unit Cooling Capacity Output 2 kW Compressor Input Power 3 MBH Condenser heat rejection 4 EER Chiller Energy Efficiency Ratio Capacity Tons x 12 kW 5 LOWT Leaving Chilled Water Temperature 6 Ratings based on 2 4 GPM cooler water per ton 7 Ratings certified in accordance with ARI Standard 550 590 98 up to 200 tons 8 For ratings other than 3096 glycol refer to the design 03 dxchill program 22 YORK INTERNATIONAL FORM 201 24 EG1 LEAVING CONDENSER WATER TEMPERATURE F __ 9 1 0 9 KW TONS KW EER TONS KW MBH YCWS0200SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 YCWS0220SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 YCWS0240SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 NOTES Tons Unit Cooling Capacity Output kW Compressor Input Power MBH Condenser heat rejection EER Chiller Energy Efficiency Ratio Capacity Tons x 12 kW LCWT Leaving Chilled Water Temperature Ratings based on 2 4 GPM cooler water per ton Ratings certified in accordance with ARI Standard 550 590 98 up to 200 tons For ratings other than 30 glycol refer to the design 03 dxchill program YORK INTERNATIONAL 23 Ratings Brine 30 Propylene Glycol R 22 SI LEAVING CONDENSER WATER TEMPE
11. but MUST be removed upon installation Spring and neoprene isolators will increase the over all height of the unit by approximately 76mm 35 Electrical Data 36 MULTIPOINT POWER SUPPLY SEE Fic 9 PAGE 30 Each of the two field provided power supply circuits individually protected with branch circuit protection Field connections to factory provided Terminal Block std Non Fused Disconnects opt or individual system Circuit Breakers opt in each of the two motor control centers CHILLER MODEL YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC VOLT CODE 17 MIN CIR MCA SYSTEM 1 MIN NF MIN DISC SW DUAL FUSE MAX DUAL FUSE MAX CB 404 404 591 591 708 708 708 354 354 481 481 642 642 642 219 219 285 285 343 343 343 174 174 228 228 280 280 280 138 138 182 182 224 224 224 YORK INTERNATIONAL FORM 201 24 EG1 CHILLER MODEL YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC
12. 0140SC 0180SC 0200SC 0220SC 0240SC Q FIGURE 4 CONDENSER WATER PRESSURE DROP CURVES 51 1000 g x U 100 2 3 S 10 1 10 Flow 1 5 100 0100SC 0120SC 0140SC S 0180SC 0200SC U 0220SC 0240SC YORK INTERNATIONAL 11 Selection Data GUIDE TO SELECTION Complete water chilling capacity ratings for YORK YCWS chillers are shown on the following pages to cover the majority of job requirements For any application be yond the scope of this Engineering Guide consult your nearest YORK Office SELECTION RULES 1 RATINGS YCWS 200 230 380 460 amp 575 3 60 rat ing are certified in accordance with ARI standard 550 590 at the ARI standard condition Rating not at stan dard ARI conditions are rated in accordance with ARI rating procedures These ratings may be interpolated but should not be extrapolated 2 COOLING WATER QUANTITY Ratings are based on 10 F chilled water range Use the chilled water correction factors below for other ranges except as limited by water pressure drop minimum or maximum water flows for the cooler 3 CONDENSER WATER QUANTITY Rating are ap plicable from 2 to 4 gpm ton as limited by water pres sure drop or minimum or maximum water flows for the condenser Using the tabulated MBH the Cond GPM is calculated as follows MBHx2 Cond GPM Cond
13. 300 KCM 4 300 KCM CKT BRKER CUSTOMER GROUND 6 1 0 AWG 6 1 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 2 2 4 0 AWG 6 1 0 AWG 6 1 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 8 2 AWG 8 2 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 6 1 0 AWG 6 1 0 AWG it 6 1 0 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 1 Minimum Circuit Ampacity MCA is based on 125 of the rated load amps for the largest motor plus 100 of the rated load amps for all other loads included in the circuit per N E C Article 430 24 If the optional Factory Mounted Control Transformer is provided add the following MCA values to the electrical tables for the system providing power to the transformer 50 add 5 amps 2 The minimum recommended disconnect switch is based on 115 of the rated load amps for all loads included in the circuit per N E C Article 440 3 Minimum fuse size is based upon 150 of the rated load amps for the largest motor plus 100 of the rated load amps for all other loads included in the circuit to avoid nuisance trips at start up due to lock rotor amps It is not recommended in applications where brown outs frequent starting and stopping of the unit and or opera tion at ambient temperatures in excess of 35 C 95 F is anti
14. 4 300 KCM 6 350 KCM 4 300 KCM 8 350 KCM 250 500 KCM 2 3 0 250 KCM 4 300 KCM 4 300 KCM 4 300 KCM 4 300 KCM 6 350 KCM 250 500 KCM 250 500 KCM 14 1 0 AWG 14 1 0 AWG 4 300 KCM 4 300 KCM 4 300 KCM 4 300 KCM 4 300 KCM 14 1 0 AWG 14 1 0 AWG 4 300 KCM 14 1 0 AWG 4 300 KCM 4 300 KCM 4 300 KCM 14 1 0 AWG 14 1 0 AWG 14 1 0 AWG 14 1 0 AWG 14 1 0 AWG 14 1 0 AWG 4 300 KCM N F DIS SW CUSTOMER GROUND 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 6 1 0 AWG 8 2 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 4 3 0 AWG 4 3 0 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 6 1 0 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG 8 2 AWG CKT BRKR 6 350 KCM 4 300 KCM 250 500 KCM 250 500 KCM 250 500 KCM 250 500 KCM 3 2 0 400 KCM 4 300 KCM 4 300 KCM 4 300 KCM 250 500 KCM 250 500 KCM 250 500 KCM 250 500 KCM 4 300 KCM 4 300 KCM 4 300 KCM 4 300 KCM 4 300 KCM 4 300 KCM 6 350 KCM 14 1 0 AWG 14 1 0 AWG 4 300 KCM 4 300 KCM 4 300 KCM 4 300 KCM 4 300 KCM 14 1 0 AWG 14 1 0 AWG 2 4 0 AWG 2 4 0 AWG 4 300 KCM 4
15. 552 2 552 YCWS0240SC 2 552 2 552 2 552 2552 1 Isolator Selections VMC Type CP 4 X 26 26 26 31 31 31 31 YORK INTERNATIONAL Neoprene VMC Type RD 4 Selections Model B D YCWS0100SC Green YCWS0120SC Green YCWS0140SC Green YCWS0180SC Gray YCWS0200SC Gray YCWS0220SC Gray YCWS0240SC Gray 29 Isolator Details 1 ISOLATOR DETAILS FF 712 9 1 4 10 1 4 1 2 POSITIONING PIN V 6 1 4 FREE HT ENGLISH amp SIZE CP 4 26 CP 4 81 ISOLATOR MOUNTING BRACKET gt lt gt e e D 7 Y L B _ ISOLATOR BRACKET DIMENSIONS rem A B c D Eng 3 638 1014 518 s 76 162 260 130 rem E F G Eng 138 34 516 si 8 35 19 MAX B ER M EE EE E 1088 6 Se 29 7 4400 1995 8 0 83 21 0 13 POSITIONING PIN 159 FREE HT SPRING COLOR Purple Gra NEOPRENE ISOLATOR DETAILS C X V2 13NC 2B 1 mii 4 Mounting molded in Neoprene R 4 or RD 4 14mm e YORK INTERNATIONAL FORM 201 24 EG1 Isolator Details Cont SEISMIC ISOLATOR DETAILS SEISMIC ISOLATORS Type amp
16. SIZE MAXLOAD DEFL lbs mm in 8 AWMR 2 530 1043 2300 51 2 2 AWMR 2 552 1724 3800 51 2 7 MNTG HOLES ADJ BOLT 7 6 Eu Po M BOLTS AWMR DIMENSIONS N X AWMR 2 19mm 50 5XX 16mm AWMR 2 50 5XX Sound Data Sound Pressure Levels SPL dB re 20 microPa in accordance with ARI Standard 575 94 Octave Band Hz MODEL TEESE eighte son to zooo soon YCWS0100SC 79 YCWS0120SC 76 72 72 77 76 73 64 62 80 YCWS0140SC 81 YCWS0180SC 82 YCWS0200SC 76 73 735 80 795 76 6 62 83 YCWSO220SC 84 YCWS0240SC 85 Note All A weighted sound pressure data dBA YORK INTERNATIONAL 31 Dimensions English Mounting Dimensions 115 5 8 Model YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC CC 23 3 4 23 3 4 23 3 4 25 3 4 25 3 4 25 3 4 25 3 4 Center of gravity inches 2 34 34 34 36 36 37 37 51 8 104 i BB LI 4 HOLES FOR Y MOUNTING BOLTS ORIGIN X VIEW SHOWING MOUNTING LOCATIONS N P TO RIGGING HOLE 1 1 2 RIGGING HOLES 2 V CONDENSER WATER OUTLET VICTAULIC CONNECTION V CONDENSER WATER
17. YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YORK INTERNATIONAL MIN CIR MCA SYSTEM 2 MIN NF DISC SW MIN DUAL FUS 37 Electrical Data Cont SINGLE POINT POWER SUPPLY SEE FIG 10 amp 11 PAGE 30 8 31 One field provided power supply circuit to the control panel Field connections to factory provided Terminal Blocks opt or Non Fused Disconnect opt Individual system Circuit Breakers Non Fused Disconnects or Class J Fuse Fuse Blocks in each motor control center SYSTEM 2 CHILLER VOLT MIN WIN NF MONDE MODELS CODE CIR pisc sw PUSE Y D HZ MCA MAX CB YCWS0100SC 404 YCWS0120SC 591 YCWS0140SC 591 YCWS0180SC 708 YCWSO200SC 708 YCWS0220SC 708 YCWS0240SC 708 YCWS0100SC 354 YCWS0120SC 481 YCWS0140SC 481 YCWSO180SC 28 642 YCWS0200SC 642 YCWS0220SC 642 YCWS0240SC 642 501005 219 YCWS0120SC 285 YCWS0140SC 285 YCWSO180SC 40 343 YCWSO200SC 343 YCWS0220SC 343 YCWS0240SC 343 YCWS0100SC 174 YCWS0120SC 228 YCWS0140SC 228 YCWSO180SC 46 280 YCWSO200SC 280 YCWS0220SC 280 YCWS0240SC 280 YCWS0100SC 138 YCWS0120SC 182 YCWS0140SC 182 YCWSO180SC 58 224 YCWSO200SC 224 YCWS0220SC 224 YCWS0240SC 224 38 YORK INTERNATIONAL MODEL NUMBER YCWS0100SC YCWS0120SC YCWS0140SC YCWS018
18. or ther mal storage automatic pumpdown run signal contacts demand load limit from external building automation sys tem input remote reset liquid temperature reset input unit alarm contacts chilled liquid pump control automatic YORK INTERNATIONAL FORM 201 24 EG1 reset after power failure automatic system optimization to match operating conditions software stored in non volatile memory EPROM to eliminate chiller failure due to AC power failure The microprocessor can be directly connected to a YORK ISN Building Automation System via the standard on board RS485 communications port This option also pro vides open system compatibility with other communica tions networks Programmed Setpoints shall be retained in a lithium bat tery backed RTC with a memory of five years Display In Imperial F and PSIG or SI C and BAR units and for each circuit Return and leaving chilled liquid Day date and time Daily start stop times Holiday and Manual Override status Compressor operating hours and starts Automatic or manual lead lag Lead compressor identification Run permissive status No cooling load condition Compressor run status Anti recycle timer and anti coincident start timer sta tus per compressor Suction and suction superheat discharge and oil pressures and temperatures per System Percentfull load compressor motor current per phase and average per phase Compressor capacity co
19. 0SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC YCWS0100SC YCWS0120SC YCWS0140SC YCWS0180SC YCWS0200SC YCWS0220SC YCWS0240SC VOLT CODE 2 0 500 KCM 2 2 300 KCM 2 2 300 KCM 2 2 0 500 KCM 2 2 0 500 KCM 2 2 0 500 KCM 2 2 0 500 KCM 32 0 500 KCM 2 0 500 KCM 2 2 4 0 AWG 2 42 300 KCM 2 2 300 KCM 2 2 0 500 KCM 2 2 0 500 KCM 32 4 0 AWG 2 300 KCM 2 300 KCM 40 2 0 500 KCM 2 0 500 KCM 2 0 500 KCM 32 0 500 2 4 0 AWG 42 4 0 AWG 42 4 0 AWG 46 42 300 KCM 42 300 KCM 2 0 500 KCM 2 0 500 KCM 2 0 500 KCM 2 2 4 0 AWG 2 2 300 KCM 58 2 2 0 500 KCM 2 2 0 500 KCM 2 2 0 500 KCM 2 17 2 2 0 500 YORK INTERNATIONAL SYSTEM 18 2 TERM BLK CUST GROUND 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 2 2 8 2AWG 6 1 0 AWG 6 1 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 8 2AWG 8 2AWG 8 2AWG 6 1 0 AWG 6 1 0 AWG 4 3 0 AWG 4 3 0 AWG 8 2 AWG 8 2 AWG 8 2 AW
20. 4 and reduce the possibility of cooler damage due to freezing during chiller operation the unit microprocessor automatically unloads the compressors at abnor mally low suction temperature pressure conditions prior to safety shutdown Process Brine Option Process or other applications requir ing chilled fluid below 40 F 4 4 C risk water freezing in the evaporator typically overcome by using antifreeze For these applications the chiller system incorporates brine ethylene or propylene glycol solution and the system design Leaving Chilled Fluid Temperature must be provided on the order form to ensure proper factory configuration Thermal Storage Option Thermal Storage equires special capabilities from a chiller including the ability to charge an ice storage tank then possibly automatically reset for operation at elevated Leaving Chilled Fluid Temperatures as required by au tomatic building controls The Thermal Storage Option provides Ice Storage duty Leaving Chilled Fluid setpoints from 25 F to 15 F 4 C to 10 C minimum during charge cycle with a Reset range of 36 F 20 C supply fluid temperature Design Parameters English YCWS 02205C 02405 Min Cooler Water Flow GPM 300 Max Cooler Water Flow GPM 506 506 506 695 695 830 830 Min Cond Water Flow GPM 330 Max Cond Water Flow GPM 645 645 645 1050 1050 1050 1050 Min Lvg Liquid Temp F 40 40 Max Lvg Liquid Temp F 50 50 50 50 50
21. 50 50 Min Ent Cond Water Temp F 75 Max Ent Cond Water Temp F 95 95 95 95 95 95 95 40 40 40 115 115 Min Equipment Room Temp F 40 40 40 40 Max Equipment Room Temp F 115 115 115 115 115 YCWS 0100SC 0220SC 0240SC Min Cooler Water Flow l sec 16 4 18 9 Max Cooler Water Flow l sec 31 9 31 9 31 9 43 8 43 8 524 524 Min Cond Water Flow l sec 20 8 Max Cond Water Flow I sec 40 7 40 7 40 7 66 2 66 2 66 2 66 2 Max Liquid Temp 10 0 10 0 10 0 10 0 10 0 10 0 10 0 Min Ent Cond Water Temp C 23 8 Max Ent Cond Water Temp 35 0 35 0 35 0 35 0 35 0 35 0 35 0 Min Equipment Room Temp 44 44 44 44 44 44 44 46 1 46 1 46 1 46 1 46 1 Max Equipment Room Temp 46 1 46 1 8 YORK INTERNATIONAL FORM 201 24 EG1 Relief Valve Oil gt Separators n O Condenser Compressor TI Oil Cooling Liquid Injection Relief l Valve Refrigerant Circuit No 2 EB o High Pressure Subcooled Liquid Low Pressure Superheated Vapour Low Pressure Liquid High Pressure Superheated Vapour SV Solenoid Valve SG Sight Glass TEV Thermostatic Expansion Valve Low pressure liquid refrigerant enters the cooler tubes and is evaporated and superheated by the heat energy absorbed from the chilled liquid passing through the cooler shell Low pressure vapor enters the compressor where pressure and superheat are increased High pre
22. 7 Ratings Brine 30 6 Ethylene Glycol R 22 English LEAVING CONDENSER WATER TEMPERATURE F YCWS0120SC YCWS0140SC mo KW Toys KW eer TONS KW MBH YCWS0100SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 16 0 20 0 24 0 28 0 32 0 36 0 40 0 16 0 20 0 24 0 28 0 32 0 36 0 40 0 YCWS0180SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 NOTES B Cos ct Tons Unit Cooling Capacity Output kW Compressor Input Power MBH Condenser heat rejection EER Chiller Energy Efficiency Ratio Capacity Tons x 12 kW LCWT Leaving Chilled Water Temperature Ratings based on 2 4 GPM cooler water per ton Ratings certified in accordance with ARI Standard 550 590 98 up to 200 tons For ratings other than 3096 glycol refer to the design 03 dxchill program 18 YORK INTERNATIONAL FORM 201 24 EG1 LEAVING CONDENSER WATER TEMPERATURE F e xw we mx kw kw YCWS0200SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 YCWS0220SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 YCWS0240SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 NOTES Co EO Ot Tons Unit Cooling Capacity Output kW Compressor Input Power MBH Condenser heat rejection EER Chiller Energy Efficiency Ratio Capacity Tons x 12 kW LCWT Leaving Chilled Water T
23. ET All dimensions are in mm unless otherwise noted IS oii EXTENSION BOX U COOLER CONN TH B 8 D T OO Ik ool E SYSTEM SYSTEM LIQUID OUTLET VICTAULIC 1 2 VICTAULIC CONNECTION CONNECTION RELIEF VALVE 20 7 BAR EAC SYSTEM TI LL IT E RELIEF VALVE RELIEF VALVE L K 22 8 BAR 22 8 BAR H T L 2 ORIGIN H 1 J F G 34 YORK INTERNATIONAL FORM 201 24 EG1 REF NO YCWS0100 YCWS0120 YCWS0140 YCWS0180 YCWS0200 YCWS0220 YCWS0240 gt x x i ici4ajio oivioizizirixici rx ioimim oljol o 457 457 457 457 203 203 203 203 REVISED DIMENSIONS FOR 200 230V CHILLERS REF YCWS0100 YCWS0120 YCWS0140 YCWS0180 YCWS0200 YCWS0220 YCWS0240 C 1422 D 1791 Q 659 R 1219 1270 1 635 203 p5 254 127 L 203 203 VIEW SHOWING CUSTOMER POWER ENTRY LOCATIONS ON UNDERSIDE OF PANEL L 1422 zi F 787 FF 356 51 FF 254 127 J 203 203 VIEW SHOWING DIMENSIONS FOR 200 230 PANEL YORK INTERNATIONAL NOTES CLEARANCES Recommended YORK clearances to service the unit are as follows Rear to Wall 508mm Front to Wall 813mm 508 cleaning removal 2438mm eitherend Shipping skids not shown will increase the height of the unit by 152mm
24. FORM 201 24 EG1 701 al YORK YCWS WATER COOLED LIQUID CHILLER 91 TONS THROUGH 216 TONS 320 kW THROUGH 760 kW g 60Hz STYLE A BUILDINGS ALLY Table of Contents P 3 Specifications as 4 Accessories amp Options MT 7 Design ad Iz Tz 1 REPRE 8 c 10 Selection DL a ai i i i aa 12 Ratings R 22 rei E 14 Ratings R222 SI 16 Ratings Brine 30 96 Ethylene Glycol R 22 18 Ratings Brine 30 Ethylene Glycol R 22 SN 20 Ratings Brine 30 Propylene Glycol R 22 English 0 042 24 0 0 0000 22 Ratings Brine 30 Propylene Glycol R 22 SI eene nennen nennen tren innen 24 Load Ratinga c 26 Physical Data RET 28 Isolator Selection Er 29 Isolator Detalls Lm 30 SUBIRE EU 31 Dimensions English bres aera aate Fe i il ede bu pa axe dap ed egeo redde e uda da 32 ini a ii es i 36 Incoming Wire Range 39
25. G 8 2 AWG 8 2 AWG 6 1 0 AWG 6 1 0 AWG 2 6 1 0 AWG 2 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 2 4 3 0 AWG N F DIS SW 250 500 KCM 2 250 500 KCM 2 250 500 KCM 2 250 500 KCM 2 250 500 KCM 2 250 500 KCM 2 250 500 KCM 250 500 KCM 250 500 KCM 2 250 500 KCM 2 250 500 KCM 2 250 500 KCM 2 250 500 KCM 2 250 500 KCM 4 300 KCM 4 300 KCM 6 350 KCM 250 500 KCM 250 500 KCM 250 500 KCM 250 500 KCM 4 300 KCM 4 300 KCM 4 300 KCM 6 350 KCM 250 500 KCM 250 500 KCM 250 500 KCM 2 4 0 AWG 2 4 0 AWG 6 350 KCM 6 350 KCM 6 350 KCM 6 350 KCM 6 350 KCM FORM 201 24 EG1 Incoming Wire Range Selections SINGLE POINT POWER SUPPLY N F DIS SW CUST GROUND 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 2 4 4 0 AWG 2 4 4 0 AWG 4 3 0 AWG 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 2 4 3 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 4 3 0 AWG 4 3 0 AWG 4 3 0 AWG 8 2 AWG 8 2 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 6 1 0 AWG 39 Incoming Wire Range Selections Cont MULTIPOINT WIRING SYSTEM
26. G 8 2AWG 2 4 0 AWG 8 2AWG YCWS0180SC 6 1 0 AWG 8 2AWG 14 1 0 AWG 8 2AWG 4 300 KCM 8 2AWG YCWS0200SC 6 1 0 AWG 8 2AWG 14 1 0 AWG 8 2AWG 4 300 KCM 8 2AWG YCWS0220SC 6 1 0 AWG 8 2AWG 4 300 KCM 8 2AWG 6 350 KCM 6 1 0 AWG YCWS0240SC 2 4 0 AWG 8 2AWG 4 300 KCM 8 2AWG 6 350 KCM 6 1 0 AWG MULTIPOINT WIRING SYSTEM 2 FORM 201 24 EG1 5 Circuit breakers supplied by third party vendors must be certified by local electrical standards Maximum size is based on 225 of the rated load amps for the largest motor plus 100 of the rated load amps for all other loads included in the circuit 6 The INCOMING WIRE RANGE is the minimum and maximum wire size that can be accommodated by the unit wiring lugs The 2 preceding the wire range indicates the number of termination points available per phase of the wire range specified Actual wire size and number of wires per phase must be determined based on the National Electrical Code using copper connectors only Field wiring must also comply with local codes 7 A ground lug is provided for each compressor system to accommodate a field grounding conductor per N E C Table 250 95 A control circuit grounding lug is also supplied 8 The supplied disconnect is a Disconnecting Means as defined in the N E C 100 and is intended for isolating the unit for the available power supply to perform maintenance and troubleshooting This disconnect is not inten
27. INLET VICTAULIC CONNECTION 20 SINGLE POINT EXTENSION BOX U TO COOLER CONN j T E La B 8 MIB T C TOO Is OO W COOLER W COOLER LIQUID INLET SYSTEM SYSTEM LIQUID OUTLET VICTAULIC 1 2 ee CONNECTION RELIEF VALVE 20 7 BAR EACI SYSTEM I LI E t RELIEF VALVE RELIEF VALVE K 22 8 BAR 22 8 BAR k F 2 ORIGIN x HW 1 J J 32 YORK INTERNATIONAL FORM 201 24 EG1 DIMENSIONS REF YCWS0240 188 sane erus o o o o s mm ET 81716 5713167 5713167 eum om om o gt gt VE Tum 122337 peus 2215167 20 718 E 7 lt 22 gt 13 1 4 13 1 4 13 1 4 14 1 4 14 1 4 14 1 4 14 1 4 REVISED DIMENSIONS FOR 200 230 CHILLERS REF YCWS0100 YCWS0120 YCWS0140 50180 50200 50220 YCWS0240 s ur 3014 56 D 70 1 2 70 1 2 70 1 2 a 1 2 a 1 2 1 2 70 1 2 a 20 7 8 20 7 8 20 7 8 25 15 16 25 15 16 25 15 16 25 15 16 R 18 NOTES 1 CLEARANCES Recommended YORK clearances
28. RATURE NOTES 1 KWo Unit kW Cooling Capacity Output 2 KWi Compressor kW Input 3 COP Coefficient of Performance 4 LCWT Leaving Chilled Water Temperature 5 Ratings based on 0 047 l s cooler water per kW 6 For ratings other than 30 glycol refer to the design 03 dxchill program 24 YORK INTERNATIONAL LEAVING CONDENSER WATER TEMPERATURE C NOTES 1 KWo Unit kW Cooling Capacity Output 2 KWi Compressor kW Input 3 COP Coefficient of Performance 4 LCWT Leaving Chilled Water Temperature 5 Ratings based on 0 047 l s cooler water per kW 6 For ratings other than 30 glycol refer to the design 03 dxchill program YORK INTERNATIONAL FORM 201 24 EG1 25 Part Load Ratings English YCWS0100SC YCWS0200SC EER Load EER 15 2 1 0 17 5 16 0 0 8 18 4 22 3 0 5 26 1 15 8 0 3 18 1 IPLV 18 8 IPLV 21 8 YCWS0120SC YCWS0220SC Load EER Load Tons EER 1 0 15 4 1 0 199 6 17 3 0 8 16 2 0 8 149 7 18 2 0 5 21 2 0 5 99 8 24 5 0 3 14 1 0 3 49 9 16 6 IPLV 18 2 IPLV 20 8 YCWS0140SC YCWSO0240SC Load EER EER 1 0 15 6 17 0 0 8 16 5 18 0 0 5 22 8 25 3 0 3 16 0 17 5 IPLV 19 3 IPLV 21 2 YCWS0180SC Load EER 1 0 17 2 0 8 18 2 0 5 24 6 0 3 40 1 28 7 16 8 IPLV 20 9 Rated in accordance with ARI Standard 550 590 26 YORK INTERNATIONAL FORM 201 24 EG1 SI YCWS0100SC YCWS0200SC Load COP Load 100 4 5 100 75 47 75 50 6 5 50 25 80 3 174 4 6 25 5 51 6 40
29. SNUSI UN3931 51 YORK INTERNATIONAL 44 FORM 201 24 EG1 03553 4 38 LSnA QVO qdvogd Av I3H 8HOV NOILONALNOD NI ONIHIM IWILL U1130 3AM 708 7545 3A18 01083105 831002 110 2708 SAS 108 3NI1 0 0 2 ON SAS 183 UOSS3UdHO2 0311 15 1 SU311IHO 220v H NO AINO 31114 SHOSN3S LINVH39IH3J3H L3TNI 30 991 8 S81 JYV SLOVLNOD HOLVHOdV 3 HOLVHOdVA3 H3T1IHO 31VH3dO OL GASN 38 AVN LINDYID JHL 1 01 LIN3ANdIno3 1IVNOILdO O3TIVLSNI LON SI HOLV 1OSI N3HM H31002 701 4351 Ad 3124105 LV 804 1 SLOVINOD 6 STOHLNOO H3HLlO HLIM 612 1 002 dAnd YOLVYOdVAR 78 u3qdwnr v A INO QVO 3AILSIS3H OVAGII 45 0 608 AUT3H GHOV JO tal ONY SEL 3HV SIOVINOO NNY MOSN3S 431 SI W31SAS HOSS3HdAOO ANY N3HM 1 210 1 SLOVINOO 4 MEE 0l r XI 5 S 1N3AdIn03 gir 158 2 Ir vg d TVNOILdO N3HM TVnNVA ONY NOILVH3dO NOILVTIVISNI 335 79 augi dle creo 40 2 W31SAS 281 WN31SAS 891 SLndLno NdVTY NOLLons 2802 D 8 40 OL 1
30. STIA 1 9 fms wossauan0s 22 2 psig COSMAE SG o 105 3 11 011 1 aav 108 1 duvog LL EI ECCE o 52371 TT 6 E Anddns 2 2 01 BO CST soss 50440uo 1 par NERI3S zv 9 ST 3 eti ee pee umet 207 1 or 7 6 Che Clndlng ES3 I ied MED i 43834 8018881 du H nnysiawis e 2 1 6 3 1 AZT P nd 13938 1 4 719130 335 Av138 1N3HN 310438 OI 3LON 335 253 r t anas p 2 dWal nny 304 1 7T 7 25 1NU339 13438 25 1 1 c 1 039 L 131 1 831002 NA 1 2 ON SAS E 0 ool 9 18128 2 ir Arau 10 7 21 YX IINI xnd Tos 1 7 P 1820 1 o 8017801 2 ONIY jy neat 1A4NI 25 431003 o Ar 1 P 1 ON SAS G 2 2 T 18128 1 891 t 820 u3HN0JSNUN1 703109 1231039 0104 er 1 HU30JSN3T 105109 ad09 071 N 111 1ddns_ H31SAS 01 Kr V 310N 335 5 H o 5 SET JSNENI 1031N0 SYJH10 AG SIN3NOdHO0J SO QUNU ONISIM 1 18 01140 43804 AG SIN3N0dN0J ONY ONISIM AINO SNOIL23NNOJ 4H0A X04 420178 TUNIHS3I 181 72 310 336 5 01123 02 2 558712 398110 83401502 804 2018 8122X SNUI L23NNOJ 43401902 N04 42018 IWNIWYSL 01553 405 39U110A IN3I
31. Water Range F 4 FOULING FACTORS Rating are based on 0 0001 evaporator and 0 00025 condenser fouling factor For other fouling factors consult the table below or con tact your YORK representative EVAP FOULING FACTORS x TVT Tons Compr kW 0 9980 1 0001 0 9982 1 0001 0 9978 1 0001 0 9979 1 0001 Note Temperature split factors 44 F Leaving Chilled Liquid Temp LCLT 12 COND FOULING FACTORS X 0 0005 Compr Tons KW 0 9957 1 0072 0 9959 1 0068 0 9961 1 0065 0 9965 1 0060 Note Temperature split factors 95 F Leaving Condenser Water Temp LCWT METHOD OF SELECTION If the duty requires a 10 F range on both the cooler and condenser see Ratings For water ranges other than 10 F use the following procedure 1 Determine capacity required from the following for mula Capacity tons GPM x Chilled Water Range F 2 After applying any fouling factor corrections the ac tual condenser heat rejection may be determined as follows Heat Rejection Btuh Tons x 12 000 KW x 3415 Heat Rejection Btuh Heat Rejection MBH 1000 Tons x 12 kW x 3 415 3 Determine condensing water requirements for water cooled models as follows Heat Rejection MBH x 1000 Ti Condenser Tons 15 000 Condenser Tons x 30 Cond Water GPM O Condenser Water Range F Or combine the two formulas MBH x 2 Cond Water GPM Condenser Water Range F
32. YORK INTERNATIONAL SAMPLE SELECTION Water Cooled Condenser YCWS GIVEN Chill 200 GPM of water from 56 F to 44 F and 0 0001 evaporator fouling factor with 85 F to 95 F con densing water available Fouling factor of 0 0005 spe cial field for the condenser FIND The required unit size capacity kW EER and water pressure drop SOLUTION 1 Chilled water range 56 F 44 12 F and correc tion factors are 1 0133 for Tons and 0 9993 for kW for the cooler GPM x Chilled Water Range 2 Capacity tons 54 200 x 12 2 From the rating a model YCWS0120SC has a ca pacity range reguired For the cooler leaving water temperature of 44 F and a condenser leaving water temperature of 95 F the unit capacity rating table in dicates Tons 110 3 KW 862 EER 15 4 Correcting for the 12 F chilled water range and the 0 0005 condenser fouling factor Tons 110 3 1 0133 x 0 9961 111 3TR KW 86 2 x 0 9993 x 1 0065 86 7 The unit is suitable 3 Determine the average full load kW and EER at 95 0 Tons 95 0 X 86 7 74KW 111 3 YORK INTERNATIONAL FORM 201 24 EG1 Tonsx12 95 0 12 15 4 Kw 74 EER 4 Determine the cond Heat rejection as follows Heat Rejection MBH Tons x 12 KW x 3 415 95 0 x 12 74 x 3 415 1140 253 1393 5 Determine GPM condensing water as follows MBH x2 GPM Condenser Water Cond Water Range Range 6 From curves on pages 10 and 11 t
33. and tested in accordance with section VII division 1 of the ASME pressure vessel code The water side is ex empt per paragraph U 1 c of section VIII division 1 of the ASME pressure vessel code The condenser is equipped with relief valves and will hold the full refriger ant charge for pumpdown REFRIGERANT CIRCUIT Two independent refrigerant circuits will be furnished on each unit All piping will be copper with brazed joints The liquid line will include a shutoff valve with charging port sightglass with moisture indicator thermal expan sion valve solenoid valve and high absorption remov able core filter drier The entire suction line and the liq uid line between the expansion valve and the cooler will be insulated with flexible closed cell foam insulation POWER AND CONTROL PANELS All controls and motor starting equipment necessary for unit operation shall be factory wired and function tested The panel enclosures shall be designed to NEMA 1 IP 32 and manufactured from powder painted galvanized steel YORK INTERNATIONAL The Power and Control Panel shall be divided into a power section for each electrical system a common input sec tion and a control section Each power panel shall contain Compressor starting contactors control circuit serving compressor capacity control compressor contactor coils and compressor motor overloads The compressor motor overloads contain current trans formers which sense each pha
34. ccessible hermetic compressor motor full suction gas flow through a mesh screen with inherent internal thermal overload protection and external current over load on all three phases Motor stator shall employ YORK INTERNATIONAL APT2000 type magnet wire Lubrication shall feature external oil separators with no moving or fragile parts 31 bar 450psig design working pressure and UL listing Refrigerant system differential pressure shall provide oil flow through service replace able 0 5 micron full flow cartridge type oil filter internal to compressor Filter bypass less restrictive media or oil pump not acceptable Compressors shall start at minimum load position Ca pacity control range from 100 to 10 of chiller full load using continuous function slide valves and without hot gas bypass Step unloading unacceptable Provide Mi croprocessor controlled output pressure regulating ca pacity control valve to command compressor capacity independent of control valve input pressure and balance compressor capacity with cooling load CAPACITY CONTROL SYSTEM Continuous function microprocessor controlled 3 way proportional Capacity Control Valve provides regulated output pressure independent of valve input pressure for a stable smooth and precise match of compressor ca pacity to cooling load to 10 of chiller capacity COOLER The cooler shall be a direct expansion shell and tube type with refrigerant in the tubes and liqu
35. cipated 4 Maximum fuse size is based upon 225 of the rated load amps for the largest motor plus 100 of the rated load amps for all other loads included in the circuit per N E C Article 440 22 40 YORK INTERNATIONAL CHILLER TERMINAL BLK N F DIS SW CKTBRKER MODEL CUSTOMER CUSTOMER CKTBRKR CUSTOMER WE GROUND GROUND GROUND YCWS0100SC 32 4 0 AWG 8 2AWG 4 300 KCM 6 1 0 AWG 6 350 KCM 6 1 0 AWG YCWS0120SC 2 0 500 KCM 4 3 0 AWG 6 350 KCM 6 1 0 AWG 250 500 4 3 0 AWG YCWS0140SC 2 0 500 KCM 4 3 0 AWG 6 350 KCM 6 1 0 AWG 250 500 KCM 4 3 0 AWG YCWS0180SC 2 0 500 KCM 4 3 0 AWG 250 500 KCM 4 3 0 AWG 250 500 KCM 4 3 0 AWG YCWS0200SC 2 0 500 KCM 4 3 0 AWG 250 500 KCM 4 3 0 AWG 250 500 KCM 4 3 0 AWG YCWS0220SC 2 2 4 0AWG 2 6 1 0 AWG 2 3 0 250 KCM 4 3 0 AWG 3 2 0 400 KCM 2 2 4 0 AWG renee 171 YCWS0240SC 2 2 4 0 2 6 1 0 AWG 2 3 0 250 KCM 4 3 0 AWG 3 2 0 400 KCM 2 2 4 0 AWG YCWS0100SC 2 4 0 AWG 8 2AWG 4 300 KCM 6 1 0 AWG 4 300 KCM 6 1 0 AWG YCWS0120SC 2 300 KCM 6 1 0 AWG 4 300 KCM 6 1 0 AWG 4 300 KCM 4 3 0 AWG YCWS0140SC 2 300 KCM 6 1 0 AWG 4 300 KCM 6 1 0 AWG 4 300 KCM 4 3 0 AWG YCWS0180SC 2 0 500 KCM 4 3 0 AWG 6 350 KCM 6 1 0 AWG 250 500 KCM 4 3 0 AWG YCWS0200SC 2 0 500 KCM 4 3 0 AWG 6 350 KCM 6 1 0 AWG 250
36. city Output kW Compressor Input Power MBH Condenser heat rejection EER Chiller Energy Efficiency Ratio Capacity Tons x 12 kW LCWT Leaving Chilled Water Temperature Ratings based on 2 4 GPM cooler water per ton Ratings certified in accordance with ARI Standard 550 590 98 up to 200 tons YORK INTERNATIONAL 15 Ratings R 22 SI LEAVING CONDENSER WATER TEMPERATURE ew co ww ww YCWS0100SC 3 5 3 7 3 8 3 9 4 1 4 2 YCWS0120SC 3 6 3 7 3 8 4 0 4 1 4 2 3 6 3 8 3 9 4 0 4 2 4 3 4 0 4 1 4 3 4 4 4 6 4 7 NOTES 1 KWo Unit kW Cooling Capacity Output 2 KWi Compressor kW Input 3 COP Coefficient of Performance 4 LCWT Leaving Chilled Water Temperature 5 Ratings based on 0 047 l s cooler water per kW 16 YORK INTERNATIONAL FORM 201 24 EG1 LEAVING CONDENSER WATER TEMPERATURE o me xw KWo ww mw YCWS0200SC 5 0 6 0 7 0 8 0 9 0 10 0 YCWS0220SC 5 0 6 0 7 0 8 0 9 0 10 0 YCWS0240SC 5 0 6 0 7 0 8 0 9 0 10 0 NOTES 1 KWo Unit kW Cooling Capacity Output 2 KWi Compressor kW Input 3 COP Coefficient of Performance 4 LCWT Leaving Chilled Water Temperature 5 Ratings based on 0 047 l s cooler water per kW YORK INTERNATIONAL 4 0 4 2 4 3 4 5 4 6 4 8 4 0 4 1 4 3 4 4 4 6 4 8 4 0 4 1 4 2 4 4 4 5 4 7 1
37. d charged with Refrigerant 22 and York L POE synthetic oil There will be an operational test with water flowing through the cooler to check that each control device operates correctly The unit will be covered with a coat of Caribbean Blue enamel Units are designed in accordance with NFPA 70 National Electric Code U L and cU L Standards ASHRAE ANSI 15 Safety Code for Mechanical Refrig eration All units are produced at an ISO 9001 regis tered facility All YCWS chillers are rated and certified in accordance with ARI Standard 550 590 at ARI condi tions SEMI HERMETIC YORK SCREW COMPRESSORS Continuous function microprocessor controlled 3 way proportional Capacity Control Valve provides regulated output pressure independent of valve input pressure for a stable smooth and precise match of compres sor capacity to cooling load to 10 of chiller capacity Automatic spring return of capacity control valve to minimum load position ensures compressor starting at minimum motor load Internal discharge check to prevent rotor backspin upon shutdown Acoustically tuned internal discharge gas path elimi nates objectionable noise at the source while optimiz ing flow for maximum performance Reliable suction gas cooled high efficiency acces sible hermetic motor with APT2000 type magnet wire and redundant overload protection using both ther mistor and current overload protection Suction gas screen and serviceabl
38. ddns H3MOd 3114405 83401502 SLOVLNOD WHV7V G 158 1 1 ir 8199X 40 ONY S VNINH2L N33M138 512 1 02 YO HOLIMS 9015 3 NV bo pe gt 6 11 15 1 ANY IAM ddAnr 3AOW3H 4015 AON3OU3W3 ATLVIO3AW LINN 4015 OL SNOILV2IJIO3dS 9NIHIM ONY 9NILV3 LOVLNOD HOJ Z 310N 33S 1 ON AS Quu08 IGLX 40 v2 9 GL HOLIMS JHL 531535 NI 391430 sir 408 1 1ddnS H3MOd 310N ONITOAD V TIVISNI NMOHS LOVINOD HLIM ATIVOILVWOIDnV 440 ANY NO LINN 31942 Ol gr ora 336 SSV10 JOVLIOA 3NI1 ANY HLIM LINGNOD 3AVS NI NOY 38 LON T1VHS ONIYIM 181X T Q130N3AWO23H 512 1 02 0109 00 vZ ONIHOLIMS JIGVLINS 38 LSNW SIOVINOO 2 408 Z S aE SNOILVOIJIO3dS GNV 53002 318V2lddV 6 123NN02 V 1 H3HLO SV T13M SV 3002 1 21812313 1VNOILVN 30 D 33155339 a o NOILIGA JHL HLIM NI 38 OL 314 gae su aa OUS S3LON ne 408 2 1 T 2 704545 01 N 28 dS9 n 6 zi L xU 332n sNuu1 M 3dnSS3yd 1 ON sac fi 223525 pe 408 1 6 LU nc 1 yd3Ing0SNby1 L 1 ON Sus Qu08 dS9 1 4416 u3MOg i gt 155 336 L UOSN3S 181 e E Ana 2 1 32 82 eI y re 5
39. de Pressure barg Di a X Length mm Water Nozzle Connection Size inches Evaporator Direct Expansion Code Water Volume I s Maximum Water Side Pressure barg Maximum Refrigerant Side Pressure barg Dia X Length mm Water Nozzle Connection Size inches 28 English 02205 02405 qe epo wx S nm ao wo w 26 h m oec rue guise ien secs dr s 240 240 12006 13502 ou nc cc ca x AB ns cde EXT NEUE T 1 so so x 30o 18 x 156 pes gt me i os i BA T e 56 4 4 9 9 107 0 1 wo 30 3 21 14 x 156 Lie i a es SI 0240SC ame ig se se eu me 109 109 14 4 5446 6124 LEES ENERO DIES BEC SEHE EUM s a 230 100 224 457 x 3963 a e pe NM NEN 406 10 227 540 x 3963 E UT EE YORK INTERNATIONAL Isolator Selection Data FORM 201 24 EG1 Weight Distribution by Model 3333 3355 Unit Panel Sesmic Isolator AWMR X Selections Model D YCWS0100SC 2 530 YCWS0120SC 2 530 YCWS0140SC 2 530 YCWS0180SC 2 552 YCWS0200SC 2 552 YCWS0220SC 2 552 2
40. ded to be a Load Break Device 9 Field Wiring by others which complies to the National Electrical Code amp Local Codes YORK INTERNATIONAL 41 Customer Wiring Data Standard Factory Power Supply Options Options Term Block Term Block Circuit Brkr Circuit Brkr NF Disc Sw NF Disc Sw Option Box Control Transformer FIGURE 9 MULTIPOINT POWER SUPPLY CONNECTION STANDARD UNIT Standard Factory Power Supply gd Circuit Brkr Circuit Brkr or or NF Disc Sw NF Disc Sw Option Box Terminal Block or NF Disc p Switch N Control Transformer FIGURE 10 SINGLE POINT POWER SUPPLY WITH INTERNAL CIRCUIT BREAKER OR NON FUSED DISCONNECT SWITCH 42 YORK INTERNATIONAL FORM 201 24 EG1 Class J Class J Fuse Fuse Block Fuse Fuse Block Standard Factory Circuit 1 Micropanel Circuit 2 115V Micropanel Power Supply Option Box Non Fused Disconnect 5 end Control Transformer FIGURE11 OPTIONAL SINGLE POINTPOWER SUPPLY WITH INTERNAL CLASS J FUSES BLOCK Notes 1 Dashed line indicates field provided wiring 2 The above recommendations are based upon the National E
41. e 0 5 micron full flow oil filter within the compressor housing Cast iron compressor housing precisely machined for optimal clearances and superb efficiency Entire com pressor from suction to discharge has a Design Work ing Pressure of 450psig 31 bar 350W compressor body cartridge heater Each compressor will be mounted on isolator pads to reduce transmission of vibration to the rest of the unit COOLER The dual circuit cooler will be the direct expansion type with refrigerant in the tubes and chilled liquid flowing through the baffled shell The design working pressure of the shell liquid side will be 150 PSIG 10 3 bar and 300 PSIG 26 7 bar for the tube refrigerant side The cooler will be constructed and tested in accordance with the applicable sections of the ASME Pressure Ves sel Code Section VIII Division 1 The water side will be exempt per paragraph U 1 c 6 The water baffles will be constructed of galvanized steel to resist corrosion The removable heads will allow ac cess to the internally enhanced seamless copper tubes Vent and drain connections will be included The cooler will be covered with 3 4 19 1 mm flexible closed cell foam insulation K 0 25 CONDENSER The condenser is a cleanable thru tube type with steel shell copper tubes removable water heads and includes integral subcooling Refer to PHYSICAL DATA for de sign working pressures The shell will be constructed
42. e supplied in conformance with the following pressure codes A S M E Standard CHICAGO CODE RELIEF VALVES Factory Mounted Unit will be provided with relief valves to meet Chicago Code requirements ACCESSORIES FLANGES Weld Type Consists of 150 PSI 10 5 bar standard cooler 150 Ib R F flanges to convert to flanged cooler connec tions and includes companion flanges Field mounted FLANGES Victaulic Type Consists of 2 Flange adapter for grooved end pipe standard 150 PSI 10 5 bar cooler Includes companion flanges Field mounted VIBRATION ISOLATION Neoprene Isolators Recommended for normal installations Provides very good performance in most applications for the least cost Field mounted 1 Spring Isolators Level adjustable spring and cage type isolators for mounting under the unit base rails 1 nominal de flection may vary slightly by application Field mounted 2 Seismic Spring Isolators Restrained Spring Flex Mountings incorporate a rugged welded steel housing with vertical and horizontal limit stops Housings designed to withstand a mini mum 1 0g accelerated force in all directions to 2 Level adjust able deflection may vary slightly by application Field mounted ALTERNATIVE CHILLED FLUID APPLICATIONS Standard water chilling application range is 40 F to 50 F 4 4 C to 10 C Leaving Chilled Water Temperature To protect against nui sance safety trips below 40 4
43. emperature Ratings based on 2 4 GPM cooler water per ton Ratings certified in accordance with ARI Standard 550 590 98 up to 200 tons For ratings other than 30 glycol refer to the design 03 dxchill program YORK INTERNATIONAL 19 Ratings Brine 30 Ethylene Glycol 22 SI LEAVING CONDENSER WATER TEMPERATURE ae MS mm 400 KWo KW cop kwo j cop kwo kwi KW YCWS0100SC NOTES 1 KWo Unit kW Cooling Capacity Output 2 KWi Compressor kW Input 3 COP Coefficient of Performance 4 LCWT Leaving Chilled Water Temperature 5 Ratings based on 0 047 l s cooler water per kW 6 For ratings other than 3096 glycol refer to the design 03 dxchill program 20 YORK INTERNATIONAL LEAVING CONDENSER WATER TEMPERATURE NOTES 1 KWo Unit kW Cooling Capacity Output 2 KWi Compressor kW Input 3 COP Coefficient of Performance 4 LCWT Leaving Chilled Water Temperature 5 Ratings based on 0 047 l s cooler water per kW 6 For ratings other than 3096 glycol refer to the design 03 dxchill program YORK INTERNATIONAL FORM 201 24 EG1 21 Ratings Brine 30 Propylene Glycol R 22 English LEAVING CONDENSER WATER TEMPERATURE F __ 9 9 7 KW cer TONS KW eer TONS KW MBH YCWS0100SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0 YCWS0120SC 16 0 20 0 24 0 28 0 32 0 36 0 40 0
44. en 133NN02 6 S 310N 33S s RI 181 sq sues 2 nue VNOLLdO Z CIVNOLLdO T Warexs 18 13638 310438 ON QuvOS AV13N MOSN3S du 431UM 03111H23 8 9NIAU31 1318 6 63108 336 17 is db 151 p TE A org KEF gt 01 DUNT EENET r 64 gt 6 277 4 T dd 5 gt 83401602 PIS lot 54 uiu 5 6 8 81 sr S Ir 16 01140 roll 136 22 oz 4 0 135 4 450 390915 d E lt mr IO 2 lt pi ae lt 401 o 14 2d lt ols qu 753 2 Y B O i 4 er E 812 26254 t 4 81 2 Seir 2 L Oi ASA Z 58712 1 e e L8 587 te AS204 2 526 9 310N dual E 33 kivi o Su8 318 11Hg S88 9 pir n 208 le e S8ySy ASA T AS114 2Z Laa zy ONW Or INANI 9019881 gt 54 e 423 2 6 CAS Application Data UNIT LOCATION Chillers may be placed on the ground floor or upper floor of the building The floor must be level and capable of supporting 150 of the operating weight of the unit Units should be located away from noise critical areas Ser vice clearance must be allowed and include space for removing cooler or condenser tubes
45. foam insulation MICROCOMPUTER CONTROL CENTER Each unit shall contain a Microcomputer Control Center All logic and controls shall be contained within a IP 32 NEMA 1 cabinet with hinged outer door with positive acting latches Inside shall be contained the user friendly and interactive inputs and outputs as follows LCD display with light emitting diode back lighting for easy viewing of data and input buttons for DISPLAY tem peratures pressure etc ENTRY enter cancel inputs advance day change AM PM SETPOINTS change CLOCK set time and schedule PRINT calling up op erating and shutdown data PROGRAM change inputs from special conditions such as brine chilling and UNIT ON OFF The Microcomputer Control Center shall be capable of displaying the following return and leaving liquid tem perature return and leaving condenser water tempera ture optional low leaving liquid temperature cutout set ting system 1 and 2 percent full load motor current and suction discharge optional and oil differential pressures liquid pulldown control range selectable for 0 6 C to 1 1 C 1 F to 2 F in one tenth increments above the set point liquid pull down rate sensitivity 0 3 C to 3 0 C 0 5 F to 5 F minute in 0 05 C 0 1 F increments anti 48 recycle timer status compressor run status no cooling load condition day date time out of range message daily and holiday scheduling of start stop times auto ma
46. he pressure drops with 200GPM through the cooler and 288 through the condenser of the Model YCWS120SC Cooler Pressure Drop at 200 GPM 2 9ft Condenser Pressure Drop at 288 GPM 5 5ft 13 Ratings R 22 English LEAVING CONDENSER WATER TEMPERATURE F __ 9 1 TONS KW TONS KW eer TONS KW YCWSO0100SC IPLV 18 8 40 0 117 42 0 122 44 0 127 45 0 12 9 46 0 13 2 48 0 13 7 50 0 142 YCWS0120SC IPLV 18 2 IPLV 19 3 IPLV 20 9 13 2 13 7 14 3 14 5 14 8 15 4 16 0 NOTES Tons Unit Cooling Capacity Output kW Compressor Input Power MBH Condenser heat rejection EER Chiller Energy Efficiency Ratio Capacity Tons x 12 kW LCWT Leaving Chilled Water Temperature Ratings based on 2 4 GPM cooler water per ton Ratings certified in accordance with ARI Standard 550 590 98 up to 200 tons 14 YORK INTERNATIONAL FORM 201 24 EG1 LEAVING CONDENSER WATER TEMPERATURE F __ 9 9 TONS KW TONS KW eer TONS KW YCWS0200SC IPLV 21 8 40 0 13 4 42 0 13 9 44 0 14 5 45 0 14 8 46 0 15 0 48 0 15 6 50 0 16 2 YCWS0220SC IPLV 20 8 40 0 133 42 0 13 8 44 0 14 3 45 0 14 6 46 0 14 9 48 0 15 5 50 0 16 0 YCWS0240SC IPLV 21 2 40 0 131 42 0 13 6 44 0 14 1 45 0 144 46 0 14 7 48 0 15 3 50 0 15 8 NOTES NO ORO D Tons Unit Cooling Capa
47. id to be chilled in the shell The design working pressure of the cooler shell liquid side shall be 150 PSIG for the tube refrig erant side Refrigerant heads shall be removable The cooler shall be covered with 3 4 flexible closed cell foam insulation 0 25 maximum to prevent sweating The cooler shall be constructed and tested in accordance with ASME Code requirements Vent and drain connec tions shall be included The water connections shall be fully accessible and grooved to accept victaulic couplings if used by others CONDENSER The condenser is a cleanable thru tube with steel shell copper tubes removable water heads and includes in tegral subcooling Refer to PHYSICAL DATA for design working pressures The shell will be constructed and tested in accordance with section VIII division 1 of ASME pressure vessel code The condenser is equipped with relief valves and will hold the full refrigerant charge for pumpdown REFRIGERANT CIRCUITS Two independent refrigerant circuits will be furnished on 47 Guide Specifications Cont each unit All piping will be ACR copper with brazed joints The liquid line will include a shutoff valve with charging port sightglass with moisture indicator thermal expan sion valve solenoid valve and high absorption remov able core filter drier The entire suction line and the liq uid line between the expansion valve and the cooler will be insulated with flexible closed cell
48. lectric Code and the use of copper connectors only Field wiring must comply with local codes 3 Single point Non Fused Disconnect Switch is not offered with additional separate Non Fused Disconnect Switchs VOLTAGE CODE 17 200 3 60 28 230 3 60 40 380 3 60 46 460 3 60 58 575 3 60 LEGEND TERM BLOCK TERMINAL BLOCK FACTORY MOUNTED C B CIRCUIT BREAKER FACTORY MOUNTED NF DISC SW NON FUSED DISCONNECT SWITCH FACTORY MOUNTED D F DUAL FUSE DISC SW DISCONNECT SWITCH HZ HERTZ MAX MAXIMUM MCA MINIMUM CIRCUIT AMPACITY MIN MINIMUM MIN NF MINIMUM NON FUSED RLA RATED LOAD AMPS Y D LRA WYE DELTA INRUSH LOCKED ROTOR AMPS YORK INTERNATIONAL 43 rin I Control Panel Wi 2 ON SAS 22 4 N7 7 1 153 2 1 n 5 Mz n 222 8 tz mh e is2 9 1 To 9 28 1NINd 2 i
49. n trol valve input steps Cutout status and setpoints for supply fluid tempera ture low suction pressure high discharge pressure and temperature high oil temperature low and high current phase rotation safety and low leaving liquid temperature Unloading limit setpoints for high discharge pressure and compressor motor current Liquid pull down rate sensitivity 0 5 F to 5 F 0 3 C to 3 0 C minute in 0 1 0 05 increments Status of evaporator heater load and unload timers chilled water pump Outof range message Up to 6 fault shut down conditions Standard Display Language is English with an Op tion for Spanish Entry Enter set point changes cancel inputs advance day change AM PM Set Points Chilled liguid temperature chilled liguid range remote reset temperature range Clock Time daily or holiday start stop schedule manual Specifications Continued override for servicing Print Operating data or system fault shutdown history for last six faults Printouts through an RS 232 port via a separate printer by others Program Low leaving liquid temperature cutout 300 to 600 second anti recycle timer lag compressor start time delay and average motor current unload point Lig uid temperature setpoint reset signal from YORK ISN or building automation system by others via Pulse width modulated PWM input for up to 40 F 22 total reset as standard Optional B
50. ps to ensure against water pump transmission of vibration Facilities should be provided for measuring temperature and pressure in the cooler and condenser field water piping Drain connections should be provided at all low points to permit complete drainage of the cooler s condenser s and system piping This is especially im portant if the unit is located in an unheated room where freezing could prevail Water lines subjected to ambient temperatures below freezing may require heater cables or antifreeze by others Water loops should contain provisions for venting A strainer preferably 40 mesh should be installed in the cooler and condenser inlet lines and located where it will protect the circulating pump and the heat exchanger tube bundles It should be determined that the maximum water pressure at the cooler or condenser does not ex 46 ceed the maximum design working pressure of the cooler or condenser The water circulating pumps should be located on the inlet side of the heat exchangers If however space does not permit this the pumps may be located in the outlet water piping The net positive suction head must be con sidered when applying pumps PARALLEL CHILLER APPLICATION Multiple chillers are often used to provide increased reli ability reserve capacity or to divide the design capac ity The standard factory packaged chiller is most com patible with parallel chilled liquid flow Series flow arrange ment
51. ptional to the Terminal Blocks for field power connection are Non Fused Disconnects or Circuit Breaker Switches with external lockable handles SINGLE POINT POWER CONNECTION Factory Mounted An optional configuration for field connection of a single electrical cir cuit to either Terminal Block or Non Fused Disconnect Switch with lockable external handle in compliance with Article 440 of N E C to isolate unit power supply for service Factory wiring is pro vided from the Terminal Block or Disconnect Switch to Factory supplied individual system Circuit Breakers Non Fused Disconnect Switch with external lockable handle or J Class Fuses Fuse Block in each of the two compressor motor control centers Note Single Point Non Fused Disconnect Switch will not be supplied with indi vidual system Non Fused Disconnect Switches with external lock able handles in each of the two compressor motor control cen ters 65 Ka HIGH VOLTAGE PROTECTION Non Fused Disconnect Switch with fuses 200 amp 575V or Circuit Breakers 230 380 amp 460V are used for applications where customers have a require ment for single point wiring with high fault current withstanding capability This option provides between 50Ka and 65Ka withstand protection to the equipment BUILDING AUTOMATION SYSTEM INTERFACE Factory Mounted Provides means to reset the leaving chilled liquid temperature or percent full load amps current limiting from the BAS Facto
52. ry Mounted Printed circuit board to accept 4 to 20 milliamp 0 to 10 VDC or dry contact closure input from the BAS AYORKISN Building Automation System can provide a Pulse Width Modulated PWM signal directto the standard control panel via the standard onboard RS485 port FLOW SWITCH The flow switch or its equivalent must be fur nished with each unit 150 PSIG 10 5 bar DWP For standard units Johnson Controls model F61MG 1C Vapor proof SPDT NEMA 4X switch 150 PSIG 10 5 bar DWP 20 F to 250 F 29 C to 121 C with 1 NPT connection for upright mounting in horizontal pipe Field mounted DIFFERENTIAL PRESSURE SWITCH Alternative to the above men tioned Flow Switch Pretemco Model DPS 300A P40PF 82582 S 20 7bar max working pressure SPDT 5 amp 125 250 VAC switch Range 0 2 8bar deadband 0 003 0 005bar with 1 4 NPTE pres sure connections LANGUAGE LCD AND KEYPAD Standard display language and YORK INTERNATIONAL keypad is in English Spanish is available as an option PRINTER KIT Printer for obtaining printout of unit operating and history data Field Mounted MULTIPLE UNIT SEQUENCE CONTROL Field Mounted Se quencing Control with automatic unit sequencing Necessary items for operation and control of up to eight units with parallel water circuits Includes software and mixed liquid temperature sensor interconnecting wiring by others PRESSURE VESSEL CODES Coolers and condensers can b
53. s are less desirable for pre engineered packaged units due to excessive chilled liquid flow rate and higher pressure drops YORK recommends that standard pack age chillers be arranged for parallel chilled liquid flow FIELD WIRING All field wiring must comply with the National Electric Code and all applicable local codes YORK liquid chiller units are factory wired for optimum reliability Therefore the unit controls must not be modified without expressed written consent by YORK The use of a simple switch or timer from a remote point is permitted but it must be connected to the YORK unit panel at points expressly indicated for that purpose YORK INTERNATIONAL Guide Specifications FORM 201 24 EG1 YORK Model YCWS Packaged Chiller s The each unit shall have a cooling capacity of tons with Compressor kW when cooling GPM of water from F C to F C and with GPM of condensing water entering at F C and leaving at F and a cooler fouling factor of and condenser water fouling factor of The water pressure drop shall not exceed feet kPa of water through the cooler and feet kPa of water through the condenser The unit overall dimensions shall not exceed feet mm ins in length feet mm ins in width and feet mm in height The unit operating weight shall not exceed lbs Kg GENERAL The Each Packaged Water Cooled Screw Chiller shall be completely factory assembled in an ISO 9001 regis
54. se as an input to the microprocessor to protect the compressor motors from damage due to low input current high input cur rent unbalanced current single phasing phase reversal and compressor locked rotor The common input section shall contain The control supply transformer providing 115V cus tomer relay board and control circuit switch discon nect emergency stop device The control section shall contain On Off rocker switch microcomputer keypad and dis play microprocessor board I O expansion board relay boards and 24V fused power supply board MICROPROCESSOR CONTROLS Fuzzy Logic control will be incorporated in the YCWS range of chillers Fuzzy Logic allows the control system to monitor several key variables to provide tighter more stable chilled water temperature control The control sys tem monitors the leaving chilled water temperature to track where it has been where it is now how fast it is moving and accurately adjusts the chiller operation in anticipation of expected performance to minimize hunt ing and save energy The microprocessor shall have the following functions and displays Aliquid crystal 40 character display with text provided on two lines and light emitting diode backlighting for outdoor viewing color coded 35 button sealed keypad with sec tions for Display Entry Setpoints Clock Print Pro gram and Unit On Off Switch The standard controls shall include brine chilling
55. ssure vapor is passed through the oil separator where heat is rejected to the con denser water passing through the tubes The fully condensed and subcooled liquid leaves the condenser and enters the expansion valve where pressure reduction and further cooling take place The low pressure liquid refrigerant then returns to the cooler Each refrigerant circuit utilizes liquid injection maintaining efficient oil temperature operation within the compressor YORK INTERNATIONAL 9 Pressure Drops FIGURE 1 COOLER WATER PRESSURE DROP CURVES ENGLISH 100 Q I P 9 2 10 a O 1 100 1000 Flow GPM YCWS Model Number Cooler 0100SC 0120SC 0140SC O 0180SC 0200SC 0220SC 0240SC Q FIGURE CONDENSER WATER PRESSURE DROP CURVES ENGLISH 100 U e a 5 10 o 5 1 100 1000 10000 Flow GPM YCWS Model Number Cooler 0100SC 0120SC 0140SC S 0180SC 0200SC 0220SC 0240SC U 10 YORK INTERNATIONAL FORM 201 24 EG1 FIGURE 2 COOLER WATER PRESSURE DROP CURVES SI 1000 A Q 6 rj 100 Q 9 2 10 1 10 100 Flow l s YCWS Model Number Cooler 0100SC 0120SC
56. tic or manual lead lag status lead compressor defini tion number of compressor starts and running hours status of hot gas bypass valves option liquid line sole noid valves and water pump last three fault shutdowns data number of unloading steps compressor load and unload timer status The operating program shall be stored in nonvolatile memory EPROM to eliminate chiller failure due to AC power failure battery discharge Programmed setpoints are retained in lithium battery backed RTC memory for 5 years minimum Provisions shall be included for pumpdown at shutdown and recycling pumpdown a hard copy printout from a printer by others via an RS 232 electrical output two steps of demand load limiting and remote chilled liquid reset from an external building automation system unit alarm contacts chilled water pump or remote air cooled condenser control or Remote Control with printout ca pability up to 2000 feet via an RS 485 electrical output POWER PANEL The power panel shall contain the compressor power terminals U L recognized compressor motor starting contactors which meet I E C requirements current trans former sensing for each compressor power source for protection against under current over current imbal anced current single phasing compressor stall and voltage spikes YORK INTERNATIONAL YORK INTERNATIONAL FORM 201 24 EG1 49 50 YORK INTERNATIONAL YORK INTERNATIONAL FORM 201 24 EG1
57. uilding Automation System interface input card for up to 20 F 11 1 C reset using a 4 to 20 mA to 10 input or discrete reset input NOTE The Standard MicroPanel can be directly con nected to a YORK ISN Building Automation System via the standard onboard RS485 communication port This Option also provides open system compatibility with other communications networks BACnet amp LONMARK via interface through standard onboard 485 or 232 port and an external YorkTalk Translator Additional functions password protected for program ming by a qualified service technician Cutouts for low suction pressure high discharge pressure high oil temperature Refrigerant type High discharge pressure unload setpoint Compressor motor current percent limit YORK INTERNATIONAL Accessories amp Options FORM 201 24 EG1 ALTERNATIVE REFRIGERANTS Contact your nearest YORK of fice for information and availability on alternative HFC refrigerants ELECTRICAL OPTIONS MULTIPLE POINT POWER SUPPLY CONNECTION Standard field power wiring connection on all models is Multiple Point Power Connection to factory provided Terminal Blocks Two field supplied electrical power circuits with appropriate branch cir cuit protection provide power to each of two motor control center cabinets located on either side of the Control panel on the front of the chiller Each cabinet contains starter elements for one com pressor O

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