York YCAS0130 manuale d’uso

INST ALLA TION, OPERA TION & MAIN TE NANCE AIR-COOLED SCREW LIQUID CHILLERS New Release Form 201.19-NM1 (204) YCAS AIR-COOLED LIQUID CHILLERS YCAS0130 THROUGH YCAS0230 STYLE G YCAS 2 SYSTEM EPROM 031-01798-001 (ST ANDARD, BRINE & METRIC MODELS COM BINED) 028971-G 60 Hz 035-20319-000[...]

2 YORK INTERNA TIONAL FORM 201.19-NM1 (204) CHANGEABILITY OF THIS DOCUMENT In complying with YORK’s policy for continuous prod uct improvement, the information contained in this doc u ment is subject to change without notice. Literature updates that may occur will be printed on the Revision Sheet and included with the Installation, Operation &[...]

3 YORK INTERNA TIONAL FORM 201.19-NM1 (204) This equipment is a relatively complicated ap pa ra tus. Dur ing installation, operation, maintenance or service, in di vid u als may be exposed to certain com po nents or conditions in clud ing, but not limited to: re frig er ants, oils, materials un der pressure, rotating com po nents, and both high and[...]

4 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T ABLE OF CONTENTS SECTION 1 - GENERAL CHILLER INFORMA TION & SAFETY INTRODUCTION ........................................................... 9 W ARRANTY ................................................................... 9 SAFETY .......................................................................[...]

5 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T ABLE OF CONTENTS (CONT’D) Units with Single-Point Power Supply W iring .... 34 1 15V AC CONTROL SUPPL Y TRANSFORMER ........ 34 Remote Emergency Stop Device.......................... 35 CONTROL P ANEL WIRING........................................ 35 VOL TS FREE CONT ACTS .............................[...]

6 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T ABLE OF CONTENTS (CONT’D) SECTION 8 - MICRO P ANEL CONTENTS CHILLERLER CONTROL P ANEL PROGRAMMING AND DA T A ACCESS KEYS ....... 122 DISPLA Y AND ST A TUS INFORMA TION KEYS .... 122 ON / OFF ROCKER SWITCH .................................... 122 PROGRAM & SETUP KEYS ...............................[...]

7 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T ABLE 1 – Motor Protector Dip Switch Setting .......... 18 T ABLE 2 – Programmable V alues T able (minimum/maximum) ............................... 175 T ABLE 3 – Condenser Fan Control and Fan Contactor Data for DXST Units with 4 Fans/System ............................................. 178 T ABLE [...]

8 YORK INTERNA TIONAL FORM 201.19-NM1 (204) LIST OF FIGURES FIG. 23 – MODEL YCAS0130 - 0180 DIMENSIONS (ENGLISH) ......................... 82 FIG. 25 – MODEL YCAS0200 - YCAS0230 DIMENSIONS (ENGLISH) ......................... 86 FIG. 26 – MODEL YCAS0200 - YCAS0230 DIMENSIONS (SI) ....................................... 88 FIG. 27 – CLEARANCE[...]

9 YORK INTERNA TIONAL FORM 201.19-NM1 (204) INTRODUCTION YORK YCAS chillers are manufactured to the high est design and construction standards to en sure high performance, reliability and adaptability to all types of air conditioning installations. The unit is intended for cooling water or glycol so lu tions and is not suitable for purposes other t[...]

10 YORK INTERNA TIONAL FORM 201.19-NM1 (204) RESPONSIBILITY FOR SAFETY Every care has been taken in the design and man u fac ture of the unit to ensure compliance with the safety require- ments listed above. However , the individual op er at ing or working on any machinery is primarily re spon si ble for: • Personal safety , safety of other perso[...]

11 YORK INTERNA TIONAL FORM 201.19-NM1 (204) per son nel. No attempt should be made to gain access to the con trol panel or electrical enclosures during nor mal op er a tion of the unit. Rotating Parts Fan guards must be fi tted at all times and not removed unless the power supply has been isolated. If ductwork is to be fi tted, requiring the wir[...]

12 YORK INTERNA TIONAL FORM 201.19-NM1 (204) INTRODUCTION YORK YCAS chillers are designed for water or wa- ter-glycol cooling. All units are designed to be lo cat ed outside on the roof of a building or at ground level. The units are completely assembled with all in ter con - nect ing refrigerant piping and internal wiring, ready for fi eld instal[...]

13 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Refrigerant gas is drawn into the void created by the unmeshing of the fi ve lobed male and seven lobed fe male rotor . Further meshing of the rotors closes the ro tor threads to the suction port and progressively com press es the gas in an axial direction to the discharge port. The gas is compressed in[...]

14 YORK INTERNA TIONAL FORM 201.19-NM1 (204) stag gered rows and mechanically expanded into cor ro sion resistant aluminum alloy fi ns with full height fi n col lars. They have a design working pressure of 450 PSIG (31 bar). Each coil is rested to 495 PSIG (34 bar). Multiple fans move air through the coils. They are dy nam i cal ly and statically[...]

15 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Each power compartment contains: Compressor and fan starting contactors, fan motor ex ter nal overloads, control circuit serving compressor ca pac i ty control, compressor and fan contactor coils and compressor motor overloads. (Fig #1, page 12) Current transformers in the 2ACE module provide compressor [...]

16 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Motor Pr otection Modules (2ACE) The mechanical motor protector is a T exas In stru ments 2ACE Three Phase Protection Module (Fig. 45, page 127), provides thermal and cur rent motor overload pro- tec tion. This mod ule also pro tects against phase to phase cur rent im bal ance, over cur rent, under curre[...]

17 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Thermal Overload Three PTC (positive temperature co ef fi cient) ther mistors in the motor windings provides thermal pro tec tion. The sensor re sis tance stays rel a tive ly con stant at 1k Ω until a tem per a ture of 266°F (130°C) is sensed. The sensor ex pe ri enc es a rapid rise in re sis tance [...]

18 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T ABLE 1 – MOTOR PROTECTOR DIP SWITCH SETTING * Indicates one lead/phase through motor protector . YCAS STYLE G, ACROSS-THE-LINE – 60 HZ MODEL VOL T CHILLER NO. MO TOR PROTECTOR NO. CODE NAMEPLA TE LEADS RLA PER MP PHASE DISPLA Y DIP SWITCH SETTINGS ON MP (“1” INDICA TES ON) HA XXX 128 64 32 16 8[...]

19 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T ABLE 1 – MOTOR PROTECTOR DIP SWITCH SETTING (CONT’D) * Indicates one lead/phase through motor protector 2 YCAS STYLE G, ACROSS-THE-LINE – 60 HZ MODEL VOL T CHILLER NO. MO T OR PROTECTOR NO. CODE NAMEPLA TE LEADS RLA PER MP PHASE DISPLA Y DIP SWITCH SETTINGS ON MP (“1” INDICA TES ON) HA XXX 12[...]

20 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T ABLE 1 – MOTOR PROTECTOR DIP SWITCH SETTING (CONT’D) * Indicates one lead/phase through motor protector . YCAS STYLE G, WYE DEL T A ST ART – 60 HZ MODEL VOL T CHILLER NO. MO TOR PROTECTOR NO. CODE NAMEPLA TE LEADS RLA PER MP PHASE DISPLA Y DIP SWITCH SETTINGS ON MP (“1” INDICA TES ON) HA XXX [...]

21 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T ABLE 1 – MOTOR PROTECTOR DIP SWITCH SETTING (CONT’D) YCAS STYLE G, WYE DEL T A ST ART – 60 HZ MODEL VOL T CHILLER NO. MO T OR PROTECTOR NO. CODE NAMEPLA TE LEADS RLA PER MP PHASE DISPLA Y DIP SWITCH SETTINGS ON MP (“1” INDICA TES ON) HA XXX 128 64 32 16 8 4 2 1 17 321 *4 126 1 0 0 0 0 0 1 0 2[...]

22 YORK INTERNA TIONAL FORM 201.19-NM1 (204) MOTOR ST ARTING T wo types of compressor motor starting are available: Across-the-Line and optional W ye-Delta Open T ran- si tion Start er . Across-the-Line starters will utilize one contactor and one start relay per compressor . The optional W ye-Delta start er utilizes 4 motor contactors, a transition[...]

23 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Single-Point Power Connection with Combined Cir cuit Pr otection A single-point supply circuit with field provided pro tec tion is connected to a factory provided circuit break er with lockable external handle located in the options com part ment. Factory wiring is provided from the cir cuit breaker to f[...]

24 YORK INTERNA TIONAL FORM 201.19-NM1 (204) The following options provide added protection: Black fi n condenser coils – Condenser coils con struct ed using black epoxy coated Aluminum fi n stock for cor- ro sion resistance comparable to copper fin coils in typ i cal seashore locations. Copper fi n condenser coils – Coils constructed with c[...]

25 YORK INTERNA TIONAL FORM 201.19-NM1 (204) UNIT NOMENCLA TURE NAMEPLA TE ENGINEERING DA T A 2 OPTIONS MODEL NUMBER MP = Multiple Point SP = Single-Point NF = Non-Fused TB = T erminal Block Ser . = Service TS = Thermal Storage Ind. Sys. Brkr . & L. Ext. Handles = Individual System Breaker & Lockable External Handle : Standard Power Option [...]

26 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Product Description PRODUCT IDENTIFICA TION NUMBER (PIN) EXAMPLES: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 X X X X X X X X L X X X X X X X X X X X X X X X X X A X X X X X X X X X X X X X S D T C A T S R L X P R S 2 5 C X 1 X [...]

27 YORK INTERNA TIONAL FORM 201.19-NM1 (204) HANDLING AND STORAGE DELIVER Y AND STORAGE T o ensure consistent quality and maximum reliability , all units are tested and inspected before leaving the fac to ry . Standard units are shipped completely assembled and con tain ing refrigerant under pressure. Units are shipped with out export crating unles[...]

28 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 88" (2250mm) UNIT RIGGING CORRECT! WRONG! LD03514 FIG. 3 – UNIT RIGGING CORRECT! WRONG! LD03515 FIG. 4 – LIFTING LUGS CORRECT! WRONG! ✓ ✗ Handling and Storage[...]

29 YORK INTERNA TIONAL FORM 201.19-NM1 (204) INST ALLA TION LOCA TION REQUIREMENTS T o achieve optimum performance and trouble-free ser vice, it is essential that the proposed installation site meets with the location and space requirements for the model being installed. For dimensions, weight and space requirements, including service access, refer[...]

30 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Installation COMPRESSOR FEET BOL T REMOV AL After the chiller is placed in the fi nal location, remove the four bolts, 1 , attaching the compressor feet to the frame rails. These bolts are only used for shipping purposes. The bolts are screwed into the compressor feet from the bottom side of the frame r[...]

31 YORK INTERNA TIONAL FORM 201.19-NM1 (204) VIBRA TION ISOLA TORS Optional sets of vibration isolators can be supplied loose with each unit. Using the Isolator tables, refer to the T echnical Data Section , identify each mount and its cor rect lo ca tion on the unit. Installation Place each mount in its correct position and lower the unit carefull[...]

32 YORK INTERNA TIONAL FORM 201.19-NM1 (204) FIG. 6 – PIPEWORK ARRANGEMENT Pipework and fi ttings must be separately supported to prevent any loading on the evaporator . Flexible con- nec tions are recommended which will also minimize transmission of vibrations to the building. Flexible connections must be used if the unit is mounted on anti-vib[...]

33 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 4 Optional Flanges One of two types of fl anges may be fi tted depending on the customer or local Pressure V essel Code re quire ments. These are V ictaulic-Adapter fl anges, normally supplied loose, or weld fl anges which may be supplied loose or ready fi tted. V ictaulic-Adapter and weld fl ange [...]

34 YORK INTERNA TIONAL FORM 201.19-NM1 (204) If the ducts from two or more fans are to be combined into a common duct, back- fl ow dampers should be fi t- ted in the individual fan ducts. This will prevent re cir - cu la tion of air when only one of the fans is running. Units are supplied with outlet guards for safety and to prevent damage to the[...]

35 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 4 Removing high voltage power to the chill er will re move the 1 15V AC sup- ply voltage to the mi cro pro ces sor cir- cuit ry and the evap o ra tor heater . In cold weath er , this could cause serious dam age to the chill er due to evap o ra tor freeze-up. Do not re move power un less alternate means a[...]

36 YORK INTERNA TIONAL FORM 201.19-NM1 (204) POWER P ANEL LA YOUTS (TYPICAL) FIG. 9 – POWER P ANEL SECTION 028972-G Installation (WYE-DEL T A - TYPICAL) ( ACROSS THE LINE - TYPICAL) 028973-G OPTIONAL DISCONNECT SWITCH OPTIONAL CIRCUIT BREAKER SWITCH[...]

37 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 4 FIG. 10 – OPTION P ANEL SECTION OPTION P ANEL LA YOUT (TYPICAL) 00246VIP LOGIC P ANEL OPTION P ANEL WITH SINGLE POINT TERMINAL BLOCK (OPTIONAL)[...]

38 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Installation 60 Hz Models: PHOTOGRAPH OF 60 HZ MODEL LOGIC SECTION FIG. 1 1 – LOGIC SECTION LA YOUT LOGIC SECTION LA YOUT 028975-G ITEM 1 2 3 4 5 6 7 8 DESCRIPTION Microprocessor Board Back of Display I/O Expansion Board #1 Power Supply Board Relay Output Board #1 Relay Output Board #2 Flow Switch &[...]

39 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 4 FIG. 12 – LOGIC SECTION LA YOUT WITH CONTROL P ANEL LOGIC SECTION LA YOUT WITH CONTROL P ANEL 028976-G[...]

40 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Installation FIG. 13 – CUSTOMER CONNECTIONS CUST OMER CONNECTIONS LD03502 CONNECTION POINTS FOR EMERGENCY STOPS TERMINALS 13-34 028977-G Print T emperature PWM Current PWM Flow Switch System No . 1 Run System No . 2 Run 14 15 16 17 18 19 23 24 25 26 27 28 29 30 System No . 1 Alarm Contacts Chilled Liqu[...]

41 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 4 FIG. 14 – CUSTOMER CONNECTIONS CUST OMER CONNECTIONS 2028978-G CIRCUIT BREAKERS CB1, CB2, CB3 CUSTOMER CONNECTIONS (FLOW SWITCH, ALARM, RUN, ETC.) 1 15 V AC SUPPL Y MICROPROCESSOR CIRCUIT BOARD RELA Y BOARDS I/O EXP ANSION BOARD TRANSFORMERS SYSTEM SWITCHES[...]

42 YORK INTERNA TIONAL FORM 201.19-NM1 (204) or cop per line, but do not tighten the fl are nut. Using clean oil of the correct type (“L” oil), pump oil until all air has been purged from the hose then tight en the nut. Stroke the oil pump to add oil to the oil sys tem. The oil level should be between the mid dle of the low er and mid dle of t[...]

43 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 5 Check that the tapping used conforms to the site sup ply voltage. After the tapping is veri fi ed, replace the lid. Switch Settings Ensure that the unit ON/OFF switch on the display door and the micro board system switch es S2 through S5 are set to “0” (OFF). Set the red han dled emergency stop de[...]

44 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Commissioning FIRST TIME ST ART -UP During the commissioning period there should be suf fi cient heat load to run the unit under sta ble full load op er a tion to enable the unit con trols, and sys tem op er a tion to be set up cor- rect ly and a com mis sion ing log tak en. Be sure that the Micro Panel[...]

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46 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Op er a tion GENERAL DESCRIPTION The units are designed to work independently , or in con junc tion with other equipment via a YORK ISN build ing management system or other automated con- trol sys tem. When operating, the unit controls monitor the chilled liquid system temperature at the unit and take th[...]

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48 YORK INTERNA TIONAL FORM 201.19-NM1 (204) TECHNICAL DA T A The evaporator is designed in accordance with ARI-590- 92 which allows for an increase in pres sure drop of up to 15% above the design value given above. Debris in the water may also cause additional pressure drop. When using glycol solutions, pressure drops are high er than with water ([...]

49 YORK INTERNA TIONAL FORM 201.19-NM1 (204) TEMPERA TURE AND FLOWS (ENGLISH UNITS) Excessive fl ow, above the max GPM, will damage the evaporator . MODEL NUMBER YCAS LEA VING W A TER TEMPERA TURE (°F) EV APORA TOR FLOW (GPM 3 ) AIR ON CONDENSER (°F) MIN. 1 MAX. 2 MIN. MAX. MIN. MAX 0130EC 40 55 138 525 0 125 0140EC 40 55 138 525 0 125 0150EC 40[...]

50 YORK INTERNA TIONAL FORM 201.19-NM1 (204) TEMPERA TURE AND FLOWS (SI UNITS) T echnical Data MODEL NUMBER YCAS LEA VING W A TER TEMPERA TURE (°C) Evaporator FLOW (l/s 3 ) AIR ON CONDENSER (°C) MIN. 1 MAX. 2 MIN. MAX. MIN. MAX 0130EC 4.4 12.8 8.7 33.1 -17.7 51.7 0140EC 4.4 12.8 8.7 33.1 -17.7 51.7 0150EC 4.4 12.8 12.6 37.9 -17.7 51.7 0160EC 4.4 [...]

51 YORK INTERNA TIONAL FORM 201.19-NM1 (204) PHYSICAL DA T A ENGLISH UNITS 7 MODEL NUMBER YCAS 0130EC 0140EC 0150EC 0160EC 0170EC 0180EC 0200EC 0210EC 0230EC General Unit Data Unit Capacity at ARI Conditions, T ons 121.1 130.1 145.3 157.1 164.3 171.6 186.7 194.8 209.1 Number of Independent Refrigerant Circuits 222222222 Refrigerant Charge, R-22, Ck[...]

52 YORK INTERNA TIONAL FORM 201.19-NM1 (204) PHYSICAL DA T A SI UNITS T echnical Data 1 Optional 300 PSIG Waterside available MODEL NUMBER YCAS 0130EC 0140EC 0150EC 0160EC 0170EC 0180EC 0200EC 0210EC 0230EC General Unit Data Unit Capacity at 6.7°C water & 35°C ambient, kW 425.7 457.6 510.9 552.6 578.0 603.4 656.6 685.2 735.2 Number of Indepen[...]

53 YORK INTERNA TIONAL FORM 201.19-NM1 (204) OPERA TING LIMIT A TIONS AND SOUND POWER DA T A 7 OPERA TING LIMIT A TIONS – ENGLISH UNITS * Maximum Ambient w/ High Ambient Kit is 130°F . MIN MAX LEA VING CHILLED LIQUID TEMP ( °F) 40.1 59 CHILLED WA TER TEMP DIFFERENCE ( °F) 5.5 18 WA TER SIDE PRESSURE (PSIG) 150 REFRIGERANT SIDE PRESSURE (PSIG) [...]

54 YORK INTERNA TIONAL FORM 201.19-NM1 (204) ELECTRICAL DA T A T echnical Data MUL TIPLE POINT POWER SUPPL Y CONNECTION T wo fi eld provided power sup ply cir cuits to the unit. Field Power W iring connections to fac to ry provided, Non-Fused Dis con nect Switches (Opt), Circuit Breakers (Opt) or T er mi nal Blocks (Opt). Suitable for: Y - ∆ Sta[...]

55 YORK INTERNA TIONAL FORM 201.19-NM1 (204) ELECTRICAL DA T A 7 SYSTEM #2 FIELD-SUPPLIED WIRING MODEL VOL TS MIN NF F ACTOR Y PROVIDED (LUGS) WIRE RANGE 7 COMPRESSOR F ANS 1 1, 12 YCAS MCA 1 DISC SW 2, 9 STD. TERMINAL OPT . NF . OPT . C.B. RLA Y -LRA X-LRA QTY FLA LRA MIN. 3, 5 MAX. 4, 6 BLOCK DISC SW . (EA.) (EA.) 200 343 400 450 500 (2) 1/0 - 30[...]

56 YORK INTERNA TIONAL FORM 201.19-NM1 (204) ELECTRICAL DA T A T echnical Data One fi eld provided power supply circuit to the unit. Field con nec tions to factory pro vid ed Non-Fused Dis con nect Switch (Opt), or T erminal Block (Opt). Factory con nec tions to Circuit Breakers on T er mi nal Blocks in each of the two Power Panels. OPTIONAL SINGL[...]

57 YORK INTERNA TIONAL FORM 201.19-NM1 (204) ELECTRICAL DA T A 7 SYSTEM #1 SYSTEM #2 MODEL VOL TS COMPRESSOR DA T A F AN DA T A 1 1, 12 COMPRESSOR DA T A F AN DA T A 11, 12 YCAS RLA Y-LRA X-LRA QTY FLA LRA RLA Y -LRA X-LRA QTY FLA LRA (EA.) (EA) (EA) (EA) 200 246.1 591 1866 4 8.2 38.0 246.1 591 1866 4 8.2 38.0 230 214.0 481 1518 4 7.8 33.0 214.0 48[...]

58 YORK INTERNA TIONAL FORM 201.19-NM1 (204) ELECTRICAL DA T A One fi eld provided power supply circuit to the unit. Field con nec tions to fac to ry pro vid ed Non-Fused Dis con nect Switch (Opt), or T er mi nal Block (Opt). Factory con nec tions to T erminal Blocks in each of the two Pow er Pan els. OPTIONAL SINGLE-POINT POWER SUPPL Y CONNECTION[...]

59 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 ELECTRICAL DA T A SYSTEM #1 SYSTEM #2 MODEL VOL TS COMPRESSOR DA T A F AN DA T A 1 1, 12 COMPRESSOR DA T A FAN DA T A 11,12 YCAS RLA X-LRA QTY FLA LRA RLA X-LRA QTY FLA LRA (EA.) (EA) (EA) (EA) 0130EC 460 107 719 4 4.0 19.0 107 719 4 4.0 19.0 575 86 574 4 3.1 15.2 86 574 4 3.1 15.2 0140EC 460 116 719 4[...]

60 YORK INTERNA TIONAL FORM 201.19-NM1 (204) ELECTRICAL DA T A T echnical Data Suitable for: Across-The-Line-Start One fi eld provided power supply circuit to the unit. Field con nec tions to factory pro vid ed Circuit Breaker in the Options Panel. Factory con nec tions to Terminal Blocks in each of the two Power Pan els. OPTIONAL SINGLE-POINT POW[...]

61 YORK INTERNA TIONAL FORM 201.19-NM1 (204) ELECTRICAL DA T A COMPRESSOR DA T A MAXIMUM kW AND AMPERAGE V ALUES FOR DXST COMPRESSORS COMPRESSOR MODEL AN D VOL T AGE CODE DXS45LA – MOT OR CODE A DXS36LA – MOTOR CODE A DXS24LA – MOTOR CODE (TBD) (B5N, B5E, B6N, B6E) (A5N, A5E, A6N, A6E) (C5N, C5E, C6N, C6E) VOL T AGE CODE - -17 -28 -40 -46 -50[...]

62 YORK INTERNA TIONAL FORM 201.19-NM1 (204) ELECTRICAL NOTES NOTES: 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 a Factory Mounted Control T ransformer is pro vid ed, add the following to th[...]

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64 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data WIRING DIAGRAM A CROSS-THE-LINE ST AR T NOTES: 1. Field wiring to be in accordance with the current edi tion of the National Electrical Code as well as all oth er ap pli ca ble codes and speci fi cations. 2. Numbers along the right side of a diagram are line iden ti - fi ca tion numbers[...]

65 YORK INTERNA TIONAL FORM 201.19-NM1 (204) LD09233 WIRING DIAGRAM A CROSS-THE-LINE ST AR T FIG. 18 – WIRING DIAGRAM – ACROSS-THE-LINE ST ART 7[...]

66 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data ELEMENT AR Y DIAGRAM FIG. 19 – ELEMENT ARY DIAGRAM – ACROSS-THE-LINE ST ART 3 4 6 5 LD09234[...]

67 YORK INTERNA TIONAL FORM 201.19-NM1 (204) CAUTION: No Contr ols (r elays, etc.) should be mount ed in the Smart Panel en clo sur e or con nect ed to pow er sup plies in the contr ol pan el. Additionally , con trol wir ing not con nect ed to the Smart Panel should not be run thr ough the cabinet. This could r e sult in nui sance faults. CAUTION: [...]

68 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data WIRING DIAGRAM WYE-DEL T A ST ART FIG. 20 – WIRING DIAGRAM – WYE-DEL T A ST ART NOTES: 1. Field wiring to be in accordance with the current edi tion of the National Electrical Code as well as all oth er ap pli ca ble codes and speci fi cations. 2. Numbers along the right side of a di[...]

69 YORK INTERNA TIONAL FORM 201.19-NM1 (204) WIRING DIAGRAM WYE-DEL T A ST ART FIG. 21 – ELEMENT ARY DIAGRAM – WYE-DEL T A ST ART 7 LD09236[...]

70 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data ELEMENT AR Y DIAGRAM FIG. 22 – ELEMENT ARY DIAGRAM – WYE-DEL T A ST ART 3 4 6 5 LD09234[...]

71 YORK INTERNA TIONAL FORM 201.19-NM1 (204) CAUTION: No Contr ols (r elays, etc.) should be mount ed in the Smart Panel en clo sur e or con nect ed to pow er sup plies in the contr ol pan el. Additionally , con trol wir ing not con nect ed to the Smart Panel should not be run thr ough the cabinet. This could r e sult in nui sance faults. CAUTION: [...]

72 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data FIG. 22A – POWER P ANEL (SYSTEM #1) COMPONENT LO CA TIONS LD09238[...]

73 YORK INTERNA TIONAL FORM 201.19-NM1 (204) LD09239 FIG. 22B – CONTROL P ANEL COMPONENT LOCA TION 7[...]

74 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data FIG. 22C – POWER P ANEL (SYSTEM #2) COMPONENT LO CA TIONS LD09240[...]

75 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 LEGEND LD09241[...]

76 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data LD03282 LD03283 2 ACE MOTOR PROTECTOR MODULE LD03284[...]

77 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 CONNECTION DIAGRAM (SYSTEM WIRING) LD09242[...]

78 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data COMPRESSOR TERMINAL BOX LD09243[...]

79 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 LD09373 ELEMENT AR Y DIAGRAM CONTROL CIRCUIT[...]

80 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data #3/#4 #5/#6 #3/#4 #5/#6 #7/#8 #5/#6 #3/#4 #7/#8 #9/#10 LD06840 ELEMENT AR Y DIAGRAM[...]

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82 YORK INTERNA TIONAL FORM 201.19-NM1 (204) FIG. 23 – MODEL YCAS0130 - 0180 DIMENSIONS (ENGLISH) T echnical Data DIMENSIONS – YCAS0130 - YCAS0180 (ENGLISH) NOTES: 1. Placement on a level surface free of obstructions (including snow, for winter op er a tion) or air re cir cu la tion en sures rated per for mance, reli- able operation and ease of[...]

83 YORK INTERNA TIONAL FORM 201.19-NM1 (204) DIMENSIONS – YCAS0130 - YCAS0180 (ENGLISH) 7 LD03744 CO NTRO L / OP TI O N S AB C D EF G H LD03743 CENTER OF GRA VITY (Cop per) YCAS X Y Z 0130 103.5" 44.4" 40.7" 0140 103.5" 44.4" 40.7" 0150 108.2" 43.0" 39.2" 0160 108.4" 43.1" 39.1" 0170 108[...]

84 YORK INTERNA TIONAL FORM 201.19-NM1 (204) FIG. 24 – MODEL YCAS0130 - 0180 DIMENSIONS (SI) T echnical Data DIMENSIONS – YCAS0130 - YCAS0180 (SI) All dimensions ar e in mm un less oth er wise not ed. LD03745a NOTES: 1. Placement on a level surface free of obstructions (including snow, for winter operation) or air recirculation ensures rated pe[...]

85 YORK INTERNA TIONAL FORM 201.19-NM1 (204) DIMENSIONS – YCAS0130 - YCAS0180 (SI) 7 CENTER OF GRA VITY (Alum.) YCAS X Y Z 0130 2573.0 1 127.8 960.1 0140 2573.0 1 127.8 960.1 0150 2710.2 1087.1 919.5 0160 2717.8 1092.2 919.5 0170 2717.8 1092.2 919.5 0180 2717.8 1092.2 919.5 CENTER OF GRA VITY (Cop per) YCAS X Y Z 0130 2628.9 1 127.8 1033.8 0140 2[...]

86 YORK INTERNA TIONAL FORM 201.19-NM1 (204) FIG. 25 – MODEL YCAS0200 - YCAS0230 DIMENSIONS (ENGLISH) T echnical Data DIMENSIONS – YCAS0200 - YCAS0230 (ENGLISH) NOTES: 1. Placement on a level surface free of obstructions (including snow, for win ter operation) or air recirculation ensures rated performance, reli- able operation and ease of main[...]

87 YORK INTERNA TIONAL FORM 201.19-NM1 (204) DIMENSIONS – YCAS0200 - YCAS0230 (ENGLISH) 7 LD03750 CENTER OF GRA VITY (Alum.) YCAS X Y Z 0200 1 19.4" 43.2" 38.0" 0210 1 19.4" 43.2" 38.0" 0230 1 19.4" 43.2" 38.0" CENTER OF GRA VITY (Copper) YCAS X Y Z 0200 122.3" 43.3" 41.0" 0210 122.3&quo[...]

88 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data FIG. 26 – MODEL YCAS0200 - YCAS0230 DIMENSIONS (SI) DIMENSIONS – YCAS0200 - YCAS0230 (SI) All dimensions ar e in mm un less oth er wise not ed. NOTES: 1. Placement on a level surface free of obstructions (including snow, for winter operation) or air recirculation ensures rated perform[...]

89 YORK INTERNA TIONAL FORM 201.19-NM1 (204) DIMENSIONS – YCAS0200 - YCAS0230 (SI) 7 $"& $"& LD03753 LD03752 CENTER OF GRA VITY (Copper) YCAS X Y Z 0200 3106.4 1099.8 1041.4 0210 3106.4 1099.8 1041.4 0230 3106.4 1099.8 1041.4 CENTER OF GRA VITY (Alum.) YCAS X Y Z 0200 3032.8 1097.3 965.2 0210 3032.8 1097.3 965.2 0230 3032.8 1097[...]

90 YORK INTERNA TIONAL FORM 201.19-NM1 (204) (1.3 m) (2 m) (2 m) (2 m) TECHNICAL DA T A CLEARANCES NOTES: 1. No obstructions allowed above the unit. 2. Only one adjacent wall may be higher than the unit. 3. Adjacent units should be 10 feet (3 meters) apart. LD0701 1 FIG. 27 – CLEARANCES T echnical Data[...]

91 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 Aluminium and Black Fin Condenser Coils WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS LD09472 A F BD C E GH ALUMINUM FIN COIL WEIGHT DISTRIBUTION BY MODEL ( LBS ) YCAS A B C D E F G H I J K L M N O P TOT AL 0130 1,956 1,633 1,309 986 1,908 1,593 1,277 962 –– –– –– –– –– –?[...]

92 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data Aluminium and Black Fin Condenser Coils WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS ISOLA TOR MAX LOAD DEFL. SPRING TYPE & SIZE lbs. kg in. mm COLOR CP-2-26 1,200 544.3 1.17 29.7 Purple CP-2-27 1,500 680.4 1.06 26.9 Orange CP-2-28 1,800 816.4 1.02 25.9 Green CP-2-31 2,200 99[...]

93 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 LD02973 A WMR-1-XXX LD02974 A WMR-2-XXX Aluminium and Black Fin Condenser Coils WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS FIG. 29 – TYPE A WMR ISOLA TOR DET AILS A B C D E F G H I J K L M N/X A WMR-1 10-1/2 6 3 5/8 3/4 3-1/2 1-3/4 1/2 9 5/8 8-1/2 4-1/4 10-1/2 3/4 50-553 1 1NC 5/8 A WMR-2 [...]

94 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data LD04033 TYPE R OR RD IF BOL TING IS PREFERRED– T ype R or RD mountings are furnished with a tapped hole in the center . This enables the equipment to be bolted securely to the mounting. TYPE R OR RD NO BOL TING IS PREFERRED– T ype R or RD mountings are may be used without bolting unde[...]

95 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 Copper Fin Condenser Coils WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS COPPER FIN CONDENSER COILS WEIGHT DISTRIBUTION BY MODEL (LBS) YCAS A B C D E F G H I J K L M N O P T otal 0130 2,066 1,774 1,483 1,192 2,020 1,735 1,450 1,165 --- --- --- --- --- --- --- --- 12,885 0140 2,072 1,779 1,487 1[...]

96 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data FIG. 30 – CP-2-XX Copper Fin Condenser Coils WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS ISOLA TOR MAX LOAD DEFL. SPRING TYPE & SIZE lbs. kg in. mm COLOR CP-2-26 1,200 544.3 1.17 29.7 Purple CP-2-27 1,500 680.4 1.06 26.9 Orange CP-2-28 1,800 816.4 1.02 25.9 Green CP-2-31 2[...]

97 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS FIG. 31 – TYPE A WMR ISOLA TOR DET AILS A B C D E F G H I J K L M N/X A WMR-1 10-1/2 6 3 5/8 3/4 3-1/2 1-3/4 1/2 9 5/8 8-1/2 4-1/4 10-1/2 3/4 50-553 1 1NC 5/8 A WMR-2 15 6 3 3/4 1 7-1/2 3-3/4 1/2 9-1/2 5/8 14-1/2 7-1/4 17 3/4 50-553 10NC 5/8 Coppe[...]

98 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data DEFLECTION COLOR MAX. LOAD ins. (mm) TYPE CODE lbs. (kg) R RD R-3 BLACK 250 (1 13.5) 0.25 0.50 OR RED 525 (238.3) (6.3) (12.7) RD-3 GREEN 750 (340.5) GRA Y 1,100 (499.4) R-4 BLACK 1,500 (681.0) 0.25 0.50 OR RED 2,250 (1021.5) (6.3) (12.7) RD-4 GREEN 3,000 (1362.0) GRA Y 4,000 (1816.0) Cop[...]

99 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 Aluminium Fin Condenser Coils with Silencer Kit WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS ALUMINUM FIN COIL WEIGHT DISTRIBUTION BY MODEL ( LBS ) YCAS A B C D E F G H I J K L M N O P T otal 0130 2,066 1,774 1,483 1,192 2,020 1,735 1,450 1,165 --- --- --- --- --- --- --- --- 12,885 0140 2,072[...]

100 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data Aluminium Fin Condenser Coils with Silencer Kit WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS ISOLA TOR MAX LOAD DEFL. SPRING TYPE & SIZE lbs. kg in. mm COLOR CP-2-26 1,200 544.3 1.17 29.7 Purple CP-2-27 1,500 680.4 1.06 26.9 Orange CP-2-28 1,800 816.4 1.02 25.9 Green CP-2-31[...]

101 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 LD02973 A WMR-1-XXX LD02974 A WMR-2-XXX WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS FIG. 33 – TYPE A WMR ISOLA TOR DET AILS A B C D E F G H I J K L M N/X A WMR-1 10-1/2 6 3 5/8 3/4 3-1/2 1-3/4 1/2 9 5/8 8-1/2 4-1/4 10-1/2 3/4 50-553 1 1NC 5/8 A WMR-2 15 6 3 3/4 1 7-1/2 3-3/4 1/2 9-1/2 5/8 [...]

102 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data DEFLECTION COLOR MAX. LOAD ins. (mm) TYPE CODE lbs. (kg) R RD R-3 BLACK 250 (1 13.5) 0.25 0.50 OR RED 525 (238.3) (6.3) (12.7) RD-3 GREEN 750 (340.5) GRA Y 1,100 (499.4) R-4 BLACK 1,500 (681.0) 0.25 0.50 OR RED 2,250 (1021.5) (6.3) (12.7) RD-4 GREEN 3,000 (1362.0) GRA Y 4,000 (1816.0) Al[...]

103 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 Copper Fin Condenser Coils with Silencer Kit WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS COPPER FIN CONDENSER COILS WITH SILENCER KIT WEIGHT DISTRIBUTION BY MODEL (LBS) YCAS A B C D E F G H I J K L M N O P T otal 0130 2,131 1,916 1,701 1,486 2,089 1,878 1,667 1,457 --- --- --- --- --- --- --[...]

104 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data FIG. 34 – CP-2-XX Copper Fin Condenser Coils with Silencer Kit WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS ISOLA TOR MAX LOAD DEFL. SPRING TYPE & SIZE lbs. kg in. mm COLOR CP-2-26 1,200 544.3 1.17 29.7 Purple CP-2-27 1,500 680.4 1.06 26.9 Orange CP-2-28 1,800 816.4 1.02 2[...]

105 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS FIG. 35 – TYPE A WMR ISOLA TOR DET AILS A B C D E F G H I J K L M N/X A WMR-1 10-1/2 6 3 5/8 3/4 3-1/2 1-3/4 1/2 9 5/8 8-1/2 4-1/4 10-1/2 3/4 50-553 1 1NC 5/8 A WMR-2 15 6 3 3/4 1 7-1/2 3-3/4 1/2 9-1/2 5/8 14-1/2 7-1/4 17 3/4 50-553 10NC 5/8 LD02[...]

106 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T echnical Data Copper Fin Condenser Coils with Silencer Kit WEIGHT DISTRIBUTION AND ISOLA T OR MOUNTING POSITIONS DEFLECTION COLOR MAX. LOAD ins. (mm) TYPE CODE lbs. (kg) R RD R-3 BLACK 250 (1 13.5) 0.25 0.50 OR RED 525 (238.3) (6.3) (12.7) RD-3 GREEN 750 (340.5) GRA Y 1,100 (499.4) R-4 BLACK 1,500 (68[...]

107 YORK INTERNA TIONAL FORM 201.19-NM1 (204) INST ALLA TION INSTRUCTIONS FOR VMC SERIES A WR/A WMR AND CP RESTRAINED MOUNTINGS 1. Floor should be level and smooth. 2. For indoor applications, isolators do not nor mal ly re quire bolting. If necessary , anchor iso la tors to fl oor through bolt holes in base plate. IM POR T ANT : Iso la tors must [...]

108 YORK INTERNA TIONAL FORM 201.19-NM1 (204) REFRIGERANT FLOW DIAGRAM Low pressure liquid refrigerant enters the evaporator and is evaporated and superheated by the heat energy ab sorbed from the chilled water passing through the evaporator shell. Low pressure vapor enters the compressor where pres sure and superheat are increased. High pres sure [...]

109 YORK INTERNA TIONAL FORM 201.19-NM1 (204) PROCESS AND INSTRUMENT A TION DIAGRAM FIG. 37 – PROCESS AND INSTRUMENT A TION DIAGRAM LD09429 7 OC CDR AIR FLOW DV HTC LT C DV DIF DV HTC OS T P PS T P DV HTC DV HPC HPL DPF COMP HTR P T SHV HTR T DV CHT LT C FS CLR CHILLED W A TER FLOW T DV S P P T FS PS HTR SYSTEM COMPONENTS MICROPROCESSOR CONTROL F[...]

11 0 YORK INTERNA TIONAL FORM 201.19-NM1 (204) COMPONENT LOCA TIONS FIG. 38 – COMPONENT LOCA TIONS LD07012 T echnical Data Control P anel BAMB 1-BDP 1-BO T EEH1 1-ZCPR 1-CCCV 1-ECH 1-XCMTB 2-YELSSV EEH1 - BAMB AMBIENT - BCL T COLD LEA VING TEMPERA TURE - BCRT COLD RETURN TEMPERA TURE - BDP DISCHARGE PRESSURE - BDT DISCHARGE TEMPERA TURE - BOP OIL[...]

111 YORK INTERNA TIONAL FORM 201.19-NM1 (204) COMPRESSOR COMPONENTS FIG. 39 – COMPRESSOR COMPONENTS SUCTION GAS IN MOTOR TERMINALS LIFTING LUG THREADED HOLE OIL HEA TER ECONOMIZER GAS IN DISCHARGE CASE OIL INLET FROM CONDENSER COOLING COIL DISCHARGE GAS OUT OIL FIL TER BLEED & EV ACUA TION POINT OIL FIL TER COVER PLA TE CAP ACITY CONTROL SOLE[...]

11 2 YORK INTERNA TIONAL FORM 201.19-NM1 (204) COMPRESSOR COMPONENTS – CONT’D FIG. 40 – COMPRESSOR COMPONENTS LD03669 T echnical Data[...]

11 3 YORK INTERNA TIONAL FORM 201.19-NM1 (204) COMPRESSOR COMPONENTS – CONT’D FIG. 41 – COMPRESSOR COMPONENTS LD03670 7[...]

11 4 YORK INTERNA TIONAL FORM 201.19-NM1 (204) COMPRESSOR COMPONENTS – CONT’D FIG. 42 – COMPRESSOR COMPONENTS T echnical Data LD06079 MALE ROTOR RELIEF V AL VE DISCHARGE CHECK V AL VE OIL FIL TER OIL FIL TER O-RING[...]

11 5 YORK INTERNA TIONAL FORM 201.19-NM1 (204) COMPRESSOR COMPONENTS – CONT’D NO. P ART NAME 1 O-RING 2 SUCTION COVER 3 SUCTION STRAINER 4 ROTOR SCREW 5 ROTOR LOCK W ASHER 6 ROTOR CLAMP W ASHER 7 ROTOR 8 ST A TOR 9 MALE INLET BEARING 10 MALE ROTOR RET AINING RING 1 1 MALE ROTOR 12 ROTOR CASE 13 O-RING 14 DOWEL PIN 15 DISCHARGE CASE 16 LIP SEAL [...]

11 6 YORK INTERNA TIONAL FORM 201.19-NM1 (204) COMPRESSOR COMPONENTS – CONT’D FIG. 44 – COMPRESSOR COMPONENTS O-RING MOTOR ROT OR / MALE ROTOR LOCKING KEY MALE ROTOR FEMALE ROTOR O-RING RELIEF VA LV E ECONOMIZER PLUG SUPPORT RINGS LD03672 SLIDE V AL VE RETURN SPRING SLIDE V AL VE T echnical Data[...]

11 7 YORK INTERNA TIONAL FORM 201.19-NM1 (204) SYSTEM ST ARTUP CHECKLIST op er ate the pump until oil drips from the fl are nut joint, al low ing the air to be expelled, and tight en the fl are nut. Open the oil charg ing valve on the oil separator and pump in oil un til it reach es the prop er lev el as de scribed above.  6. Assure water pump[...]

11 8 YORK INTERNA TIONAL FORM 201.19-NM1 (204)  5. Program the required op er at ing val ues into the mi cro for cut-outs, safe ties, etc. and record them in the chart be low . See Page 166 for details. Record programmed values in the chart below . PROGRAMMED V ALUES Displa y Language = _________________________ Discharge Press Cutout = ________[...]

11 9 YORK INTERNA TIONAL FORM 201.19-NM1 (204)  4. Check the system operating parameters. Do this by selecting various displays such as pres sures and tem per a tures. Compare these to test gauge readings. CHECKING SUBCOOLING AND SUPERHEA T The subcooling should always be checked when charg- ing the system with refrigerant and/or before setting [...]

120 YORK INTERNA TIONAL FORM 201.19-NM1 (204) If equipped with an economizer , the economizer will provide approxi- mately an additional 20ºF (1 1.1ºC) subcooling at the expansion valve in ambients above 90ºF (32ºC). Below 90ºF (32ºC), the economizer will not provide additional subcooling. After the subcooling is set, the suction superheat sh[...]

121 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 7 This page intentionally left blank.[...]

122 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 29023A CHILLER CONTROL P ANEL PROGRAMMING AND DA T A ACCESS KEYS CLOCK SETPOINTS PROGRAM & SETUP KEY ON / OFF DISPLA Y INFORMA TION KEYS ST A TUS PRINT DISPLA Y AND ST A TUS INFORMA TION KEYS Status Key - see Section 2 This key provides a display of the current operational and/or fault status of the[...]

123 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 1. INTRODUCTION & PHYSICAL DESCRIPTION 29023A 1.1 GENERAL The YORK Screw Chiller Control Panel is a mi cro pro - ces sor based control system fi tted to YCAS liq uid chill- ers. It is capable of multi-re frig er ant system con trol to maintain chilled liquid tem per a ture within pro grammed limits[...]

124 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 1.3 UNIT (CHILLER) ON / OFF SWITCH A master UNIT (Chill er) ON / OFF switch is lo cat ed just below the keypad. This switch allows the op er a tor to turn the entire chiller OFF , if desired. The switch must be placed in the ON po si tion for the chiller to op er ate. Any time the switch is in the OFF p[...]

125 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Included on the I/O Expansion Board are the outputs for the slide valve control. This control consists of a Digital to Analog Converter (DAC) and power tran sis tors to modulate current through the slide valve so le noids. Relay Output Boards One Relay Output Board per system operates the mo tor contact[...]

126 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Internally , the (3) on-board C.T .s and internal circuitry allow the Motor Protection Module to protect against high motor current as programmed on the Motor Pro- tec tor dip switches. These switches are set at the fac to ry ac cord ing to motor speci fi cations. The module also provides phase rotatio[...]

127 YORK INTERNA TIONAL FORM 201.19-NM1 (204) FIG. 45 – MOTOR PROTECTION MODULE SIDE VIEW 291 19A 8 * DISPLA Y *NORMAL FLASHES HA _ _ _. WHEN IDLE, AND FLASHING CIRCLE WHEN SYSTEM IS RUNNING. ON NUMERICAL V ALUES 29121A TOP VIEW TOP VIEW 29121A INTEGRAL C.T .'S (3) SWITCH PUSHED T O LEFT INDICA TES ON. SWITCHES PLACED IN THE ON POSITION ADD [...]

128 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 1.10 EMS/BAS CONTROLS The microprocessor system can accept remote signals to Start/Stop the chiller , adjust maximum allowable run- ning current for each compressor , and adjust the chilled liquid leaving temperature setpoint. These func tions can easily be controlled by connecting user sup plied “dry[...]

129 YORK INTERNA TIONAL FORM 201.19-NM1 (204) W iring from remote “dry” contact (for re set func tions) should not ex ceed 25 ft. (8 m) and should be run in ground ed con duit that does not carry any wir ing oth er than con trol wiring or shield ed cable. If an in duc tive de vice (relay , contactor) is sup ply ing these con tacts, the coil of [...]

130 YORK INTERNA TIONAL FORM 201.19-NM1 (204) ITEM 1 2 3 4 5 DESIGNA TION J18 RTC (U13) EPROM S1 S2 to S5 DESCRIPTION Clock Enable/Disable Jump Contact Real T ime Clock and Battery Backup I.C. Microprocessor I.C. (label shows version) NOTE : Dimple is positioned at top edge (3A) Dip Switch Set (8 switches) System Switches S2 = System 1 S3 = System [...]

131 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 1.12 LOGIC SECTION LA YOUT 60 Hz Models : FIG. 47 – LOGIC SECTION LA YOUT 028980-G 1 2 5 6 4 3 7 8 60 HZ MODEL LOGIC SECTION ITEM 1 2 3 4 5 6 7 8 DESCRIPTION Microprocessor Board Back of Keypad I/O Expansion Board # 1 Power Supply Board Relay Output Board #1 Relay Output Board #2 Flow Switch & Cus[...]

132 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 1.13 ANTI-RECYCLE TIMER The programmable Anti-Recycle T imer allows the user to select the compressor anti-recycle time to best suit their needs. Motor heating is a result of inrush current when the motor is started. This heat must be dissipated before another start takes place or motor damage may resul[...]

133 YORK INTERNA TIONAL FORM 201.19-NM1 (204) low suction pres sure cutout setting or for 180 seconds, whichever comes fi rst. Pump down occurs on “normal” shut downs where cool ing demand has been satis fi ed or when a system switch is turned off, a fl ow switch opens, run per mis sive is lost or a Daily Schedule or a Remote Shut down is ca[...]

134 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents MANUAL Lead/Lag selection will be automatically overridden by the micro to allow the lag compressor to automatically become the lead anytime the selected lead compressor shuts down due to a lock-out, lead system faults and is waiting to restart, system switch on the micro board is i[...]

135 YORK INTERNA TIONAL FORM 201.19-NM1 (204) PROCESS AND INSTRUMENT A TION DIAGRAM FIG. 47A – PROCESS AND INSTRUMENT A TION DIAGRAM LD03486 8 ECONOMIZER HX[...]

136 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 2. ST A TUS KEY : GENERAL ST A TUS MESSAGES & F AUL T W ARNINGS 2.1 GENERAL Pressing the Status key displays the current chiller or individual system operational status. The messages dis- played include running status, cooling demand, fault sta tus, external cycling device status, load limiting, and[...]

137 YORK INTERNA TIONAL FORM 201.19-NM1 (204) System Switches OFF: This message indicates that the system switch on the Microprocessor Board for the respective system is in the OFF position. A system can only run if the system switch is in the ON position. The switch for System 1 and System 2 should normally be in the ON position for all models. Se[...]

138 YORK INTERNA TIONAL FORM 201.19-NM1 (204) The U13 R TC chip should be re placed as soon as pos si ble with Part # 031-00955-000. Otherwise, the chill er will shutdown and lose all programmed points, and re quire a MANUAL OVERRIDE restart, if a power fail ure occurs. Pump Down: This message indicates that both refrigerant systems are in a pumpdo[...]

139 YORK INTERNA TIONAL FORM 201.19-NM1 (204) S Y S # C U R R L I M I T I N G S Y S # C U R R L I M I T I N G S Y S # S U C T L I M I T I N G S Y S # S U C T L I M I T I N G ning of the chiller is not economical compared to the use of “free” cooling techniques (see also Section 8.2 / Low Ambient T emperature Cutout [page 168]). The fault will c[...]

140 YORK INTERNA TIONAL FORM 201.19-NM1 (204) High Discharge Pressur e Cutout: The Discharge Pressure Safety prevents system pres sure from exceeding safe working limits. This safety is a backup for the mechanical High Pres sure Cutout in each system. The Dischar ge Pressure Safety is pro gram ma ble for a range of values below the system up per li[...]

141 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Low Suction Pressur e Cutout: The Low Suction Pressure Cutout aids in protecting the evaporator from damage due to ice build up caused by operation at low refrigerant charge or restricted re frig - er ant fl ow . A transient timer feature pre vents nuisance trips during start-up, compressor load ing, e[...]

142 YORK INTERNA TIONAL FORM 201.19-NM1 (204) S Y S # L O W C U R R / M P / H P S Y S # L O W C U R R / M P / H P After 225 seconds of operation with suction pressure op er at ing above the cut-out, a 30 second transient tim er pre vents short term fl uctuations in suction pressure due to load ing or fan cycling from causing shutdown. If suc tion [...]

143 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 407C units. If the refrigerant temperature falls below 20°F (1 1.1°C) in water cooling mode, the system will be shut down. If the refrigerant temp falls 15°F (8.3°C) below the leaving chilled liquid temp in gly col cooling mode, the system will shut down. If a malfunctioning or missing evaporator in[...]

144 YORK INTERNA TIONAL FORM 201.19-NM1 (204) is unlikely to occur unless a problem exists in the mea- sur ing sensors or during extreme conditions. The Display keys and the data available from each is as follows: 3.2 CHILLED LIQUID TEMPS KEY When the Chilled Liquid T emperatures key is pressed a display of chilled liquid temperatures leaving the c[...]

145 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 3.3 SYSTEM # DA T A KEYS Pressing one of the System # Data keys a number of times scrolls through displays of differential oil pres sure (OIL), suction pressure (SP) and dischar ge pres sure (DP), oil temperature, suction temperature (ST), dis char ge temperature (DT), saturated suction tem per a ture, [...]

146 YORK INTERNA TIONAL FORM 201.19-NM1 (204) the switches is important during the com mis sion ing of the chiller . The Options key can be used to verify the Dip Switch positions without looking at or handling the Microprocessor Board. Each press of the key will scroll to the next option/dip switch setting. Option Switch Messages (S1-1 to S1- 8) w[...]

147 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Closed: Low Ambient Mode allows the Low Ambient Cut-Out to be programmed from 0 to 50 °F (-18 to 10°C). V al ues above 25°F (-4°C) can be used to automatically shut down the chiller when direct cooling methods be come operational. SWITCH 3: Refrigerant Open: The R-407C Mode MUST be selected for mode[...]

148 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents Closed: Placing the switch in the CLOSED position, disables motor current averaging protection at start-up. It is rec- ommended that this option be selected to avoid nuisance start-up trips especially at extreme ambient/operating conditions. SWITCH 6: Heat Recovery Open: Placing the[...]

149 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Information available using the Operating Data key is de- scribed in the following sections. In example displays “ # ” is used to indicate system number where appropriate. 4.3 OPERA TING DA T A – LOCAL DISPLA Y MESSAGES YCAS 2 System Models : When the Operating Data key is pressed, the following m[...]

150 YORK INTERNA TIONAL FORM 201.19-NM1 (204) System Data: The following sequence of three displays are provided fi rst for System 1, then for System 2, and then for Sys- tems 3 and 4 as applicable. This message indicates whether the compressor on this system is ON or OFF . This message indicates the compressor motor current in amps and as a perce[...]

151 YORK INTERNA TIONAL FORM 201.19-NM1 (204) S Y S # F A N S T A G E 3 C O M P H E A T E R I S O N S Y S # R U N T I M E 1 - 3 - 4 8 - 1 7 D - H - M - S S Y S # L L S V I S O N E C O N T X V S O L I S O N 8 This message indicates the EEV preheat % and the suc- tion superheat. This message displays the accumulated Run T ime since the last start in [...]

152 YORK INTERNA TIONAL FORM 201.19-NM1 (204) The System Evaporator Inlet Refrig- erant Tem per a ture will be printed if the unit is in R407C mode. SUCTION SUPERHEAT 3.4 DEGF SAT DISCHARGE TEMP 74.5 DEGF DISCHARGE SUPERHEAT 6.3 DEGF SLIDE VALVE STEP 0 EEV OUTPUT 0.0 % EVAPORATOR INLET REFRIG 44.6 DEGF LIQUID LINE SOLENOID OFF ECONOMIZER TXV SOLENO[...]

153 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 Repetitively pressing the  Keys allows scrolling through the information available in the Safety Shut- down buf fer . This is divided into Chill er Data and Indi- vidual System Data displays as follows: Chiller Data: This message indicates the fault that caused the shut- down; in this case, a hi[...]

154 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents This message shows whether remote or local com mu - ni ca tions was selected at the time of the fault. This message displays the lead/lag selection pro- grammed at the time of the fault. This message indicates the leaving and return chilled liquid temperature at the time of the faul[...]

155 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 This message indicates the system oil pressure, suc- tion pressure, and discharge pressure at the time of the fault. This message shows the system oil temperature, suction temperature, and discharge temperature at the time of the fault. These messages indicate compressor suction gas sat- u ra tion tem[...]

156 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents 4.7 F AUL T HISTOR Y DA T A – REMOTE PRINTOUT A printout history of unit and system operating con di - tions, at the time of the fault, can be obtained by press ing the HISTOR Y Key with an optional printer in stalled. 2 compressor chillers will provide a history printout on the l[...]

157 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 5. ENTR Y KEYS 5.1 GENERAL The Entry keys allow the user to change numerical val ues programmed in as chiller setpoints, cutouts, clock, etc. 5.2 NUMERICAL KEYP AD The Numerical keypad provides all keys necessary to program numerical values into the Micro Panel. The “*” key is used to designate ho[...]

158 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents de scribed as the maximum acceptable + and - deviation from Setpoint. The minimum acceptable temperature is the Lower Range Limit and is calculated by subtracting the “-” Range from the Setpoint. The Lower Range Limit is the lowest ac cept able leaving temperature. The highest a[...]

159 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 to the Setpoint T emperature. The amount of load ing is var ied by changing the amount of DC V oltage signal to the slide valve solenoid of each compressor . V oltage increases with load (0 - approximately 9VDC at full load). Slide V alve Control The slide valve of each compressor can be moved 75 step[...]

160 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents Whenever chilled liquid leaving temperature is above the Setpoint plus the control range, loading voltage will increase to allow oil pressure to push against the internal slide valve return spring and move the slide valve to increase capacity . Every 10 seconds, when the load timer [...]

161 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 cooling mode, the saturated suction temperature unload point is 24ºF (-4.42ºC). In glycol cooling mode, the control is inactive. The load limiting thresholds are shown in the following table: T emperature Difference Between Saturated Suc- tion T emperature and the Unload T emperature Maximum Steps o[...]

162 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 6.3 LOCAL COOLING SETPOINTS KEY The Local Cooling Setpoints key is used to program the required Leaving Chilled Liquid control tem per a tures for the application. When the key is pressed, the fol- low ing message will be displayed: Key in the desired Chilled Liquid Setpoint and the al low able deviatio[...]

163 YORK INTERNA TIONAL FORM 201.19-NM1 (204) “0” for times before 10 o’clock. e.g. 08:31. The cursor will then advance to the AM/PM designation. If neces- sary press the  or  key to change to the opposite time pe ri od. Next, key in the day of the month (the cursor will au- to mat i cal ly skip from AM/PM to the fi rst digit of the da[...]

164 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Programming the DAIL Y SCHED ULE will not affect the holiday sched ule. If the chiller is not required to run on a given day , the Start time should be pro grammed for 00:00 AM and the Stop time pro grammed for 12:00 AM. Continue to program each day as needed. After SUN has been entered, the Holiday mes[...]

165 YORK INTERNA TIONAL FORM 201.19-NM1 (204) If an error is made while programming or a change is required, press Cancel. This will clear the programmed (*) “Holiday” days (the “0” key will not cancel out a “ * ” and cannot be used for correcting a programming error). 7.4 MANUAL OVERRIDE KEY When the Manual Override key is pressed, the[...]

166 YORK INTERNA TIONAL FORM 201.19-NM1 (204) If an unacceptable value is entered at any stage, the fol- lowing message is displayed for a few seconds and the entered value is ignored: The following section shows examples of each pro gram - ma ble value display in the order in which they appear after pressing the Program key , along with guidance o[...]

167 YORK INTERNA TIONAL FORM 201.19-NM1 (204) should have the cutout set at 395 PSIG (27 bar) for R22 and R407C models. The micro will, however, accept val ues between 200 - 399 PSIG (14 - 28 bar). T o program the Discharge Pressure Cutout, key in the desired value and press the Enter key to store the value into memory and scroll to the next displa[...]

168 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T o program the Low Ambient Cutout, key in the re quired setting and press the Enter key to store the value into memory and scroll to the next display . Low Leaving Liquid T emperature Cutout The Low Leaving Liquid T emperature Cutout protects the evaporator from damage due to ice build up caused by ope[...]

169 YORK INTERNA TIONAL FORM 201.19-NM1 (204) The EEV superheat setpoint is programmable. The setpoint can be programmed for 9.0ºF (5.0ºC) to 15ºF (8.3ºC) with 12.0ºF (6.6ºC) as the default. Local/Remote Communications The panel can be programmed for “Local” or “Re mote” communications. “Local” mode allows monitoring only through [...]

170 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Press the Program key again, key in the numbers “6140”, then press Enter . As the code is being keyed in, the digits are not displayed but are shown as “*” as shown: When the Enter key is pressed, the following message will appear: Key in a “1” for if default setpoints are required, or a “[...]

171 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 Program V alue Mode Low Limit High Limit Default Display Language -- NA NA English Discharge Pressure Cutout -- 200 PSIG 399 PSIG 399 PSIG 13.8 Bars 27.5 Bars 27.5 Bars Discharge Pressure Unload -- 200 PSIG 399 PSIG 375 PSIG 13.8 Bars 27.5 Bars 25.9 Bars Suction Pressure Cutout W ater Cooling 44.0 PSI[...]

172 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents 8.4 ELECTRONIC EXP ANSION V AL VE ELECTRONIC EXP ANSION V AL VE The Electronic Expansion V alve (EEV) is an electroni- cally controlled expansion valve. The control algo- rithms to control the EEV reside in the micorprocessor software. The superheat setpoint can be programmed on the[...]

173 YORK INTERNA TIONAL FORM 201.19-NM1 (204) EEV OPERA TION The EEV is an electronically controlled expansion valve that meters a fl ow of liquid re frig er ant into the evapora- tor to control superheat. The re frig er ant fl ow di rec tion is des ig nat ed by an ar row on the ex pan sion valve body . 24V AC HEA T MOTOR The 24V AC Heat Motor is[...]

174 YORK INTERNA TIONAL FORM 201.19-NM1 (204) The Pilot Solenoid is also used as a low su per heat safety de vice when EEV is selected as the ex pan sion valve type, for YCAL units only . While the sys tem is run ning and not in a pumpdown mode the Pilot So le noid will close if the suction su per heat falls be low 4.0º F . The Pilot Solenoid will[...]

175 YORK INTERNA TIONAL FORM 201.19-NM1 (204) PROGRAM MODE DISPLA YS The following value is programmable under the PRO- GRAM key (See T able 2). · System Suction Superheat Setpoint (9.0°F to 15.0°F) (5.0ºC to 8.3ºC) EXP ANSION V AL VE OPTIONS DISPLA Y When the expansion valve type is set to ther mo stat ic by opening DIP switch #7, the EEV con[...]

176 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8.7 EEV TROUBLESHOOTING TROUBLESHOOTING Below are problems and possible so lu tions or items to check. ● The system shuts down on Low Suction Pres sure · V erify that all refrigerant valves are open. · V erify that the system is not low on char ge. · V erify that the Expansion V alve T ype is set t[...]

177 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 The chiller is equipped with 8 or 10 condenser fans, with 4 or 5 fans per system as given below . Fan control is via Outside Ambient T emperature (OA T) and Discharge Pressure (DP). There are 4 or 5 stages of fan control, utilizing 3 outputs per system. The fan stages will work according to T able 3 a[...]

178 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Fan ON * ** OFF * Fan Wire Relay Stage Fans Conditions Conditions Contactor Number Board DP DP & OA T Output* S 1 1 >230 PSIG <160 PSIG & <60°F 9M 130 15 Y 2 5 & 7 >250 PSIG <180 PSIG & <65°F 1 1M & 12M 132 10 S 3 1, 5, & 7 >265 PSIG <195 PSIG & <[...]

179 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8.9 SERVICE MODE: UNIT SETUP The Service Mode allows programming unit set-up values. These values are programmed before the chiller leaves the factory and typically should never be changed. Catastrophic failure of chiller compo- nents can occur if the set-up values are improperly programmed. If for some[...]

180 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents T ABLE 6 – YCAS STYLE G, ACROSS THE LINE ST ART - 60 HZ. MODEL NO. VOL T AGE CODE CHILLER NAMEPLA TE RLA NO. OF LEADS PER PHASE THRU CT . 100% FLA OF SYSTEM MP INPUT VOL T AGE 130 17 246 *2 266 3.65 28 214 *2 231 3.2 40 130 2 140 3.89 46 107 1 1 16 3.2 58 86 1 93 2.58 140 17 267 *[...]

181 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 T ABLE 6 – YCAS STYLE G, ACROSS THE LINE ST ART - 60 HZ. (CONT'D) MODEL NO. VOL T AGE CODE CHILLER NAMEPLA TE RLA NO. OF LEADS PER PHASE THRU CT . 100% FLA OF SYSTEM MP INPUT VOL T AGE 200 17 342 *4 369 2.55 28 298 *4 322 2.24 40 181 *2 195 2.71 46 149 2 161 4.46 58 1 19 1 129 3.58 210 SYS 1 17[...]

182 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents T ABLE 7 – YCAS STYLE G, WYE DEL T A ST ART - 60 HZ. MODEL NO. VOL T AGE CODE CHILLER NAMEPLA TE RLA NO. OF LEADS PER PHASE 100% FLA OF SYSTEM MP SET POINT VOL T AGE 130 17 246 *4 266 2.13 28 214 *2 231 3.71 40 130 2 140 3.89 46 107 2 1 16 3.20 58 86 2 93 2.58 140 17 267 *4 288 2.[...]

183 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 T ABLE 7 – YCAS STYLE G, WYE DEL T A ST ART - 60 HZ. (CONT'D) MODEL NO. VOL T AGE CODE CHILLER NAMEPLA TE RLA NO. OF LEADS PER PHASE THRU CT . 100% FLA OF SYSTEM MP INPUT VOL T AGE 200 17 342 *4 369 2.98 28 298 *4 322 2.60 40 181 *2 195 3.15 46 149 2 161 4.47 58 1 19 2 129 3.58 210 SYS 1 17 374[...]

184 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents SERVICE MODE: VIEWING INPUTS AND OUTPUTS All digital and analog inputs and digital outputs can be viewed by pressing the FUNCTION key and the press- ing of the OPER DA T A key . The UP and DOWN arrow keys can then be used to scroll through the inputs and outputs. Each analog input w[...]

185 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 Ambient T emperature Sensor T emperature V oltage °F (°C) VDC 14° (-10°) 0.97 23° (-5°) 1.20 32° (0.0°) 1.45 41° (5°) 1.72 50° (10°) 2.00 59° (15°) 2.29 68° (20°) 2.58 77° (25°) 2.85 86° (30°) 3.1 1 95° (35°) 3.35 104° (40°) 3.57 TEST POINTS: Leaving W ater ....................[...]

186 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents T ables 8 through 14 are a quick reference list providing the connection points and a description of the inputs and outputs respectively . All input and output connections pertain to the connections at the microboard, relay , or I/O Board. T ABLE 8 - DIGIT AL OUTPUTS Microboard / Re[...]

187 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 ANALOG INPUTS Not all of the sensors are installed in every unit as some of them are optional. However , the software must still be able to read the sensors if the optional ones are installed. T able 9 lists all of the analog inputs and whether they are on the Microboard or the I/O Expansion Board. T [...]

188 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents DIGIT AL INPUTS T able 10 lists all of the digital inputs and whether they are on the Microboard or the I/O Expansion Board. T ABLE 10 - DIGIT AL INPUTS ANALOG OUTPUTS T able 1 1 lists all the analog outputs and what output board they are on. T ABLE 1 1 - ANALOG OUTPUTS Microboard J[...]

189 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 RECEIVED DA T A (CONTROL DA T A) The microprocessor receives 8 data values from the ISN. The fi rst 4 are analog values and the last 4 are digital values. These 8 data values are used as con trol pa ram e ters when in RE MOTE mode. When the unit is in LO CAL mode, these 8 values are ignored. If the u[...]

190 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents ISN Page Character T ype DXST Chiller Data P27 72-75 A Sys 2 Oil Pressure P28 76-79 A Sys 2 Suction Pressure P29 80-83 A Sys 2 Discharge Pressure P30 84-87 A Sys 2 % Full Load Amps P31 88-91 A Sys 2 T otal Run Hours P32 92-95 A Sys 2 T otal Number of Starts P33 96-99 A Sys 2 Anti-Re[...]

191 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 ISN Page Character T ype DXST Chiller Data P66 138-141 Analog Leaving Chilled Liquid Setpoint P67 142-145 A Low Leaving Chilled Liquid T emp Cutout P68 146-149 A Sys 1 EEV Output % P69 150-153 A Sys 2 EEV Output % P70 154-157 A Low Suction Pressure Cutout P71 158-161 A High Discharge Pressure Cutout P[...]

192 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Micro Panel Contents P56/58 C1 Operational Code P57/59 C1 Fault Code 0 No Abnormal Condition 0 No Fault 1 Unit Switch Off 1 V AC Under V oltage 2 System Switch Off 2 Low Ambient T emperature 3 Lock - Out 3 High Ambient T emperature 4 Unit Fault 4 Low Leaving Chilled Liquid T emp 5 System Fault 5 High Di[...]

193 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 8 This page intentionally left blank.[...]

194 YORK INTERNA TIONAL FORM 201.19-NM1 (204) GENERAL REQUIREMENTS The units have been designed to operate continuously , provided they are regularly maintained and operated with in the limitations given in this manual. Each unit should be included in a routine schedule of daily main- te nance checks by the operator/customer , backed up by regular [...]

195 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 9 "L" T ype POE oil. Always add oil from a new unopened container . Dispose of the remaining oil using environ- mentally friendly procedures. Refrigerant charge : When a system starts up, or some- times after a change of capacity , a fl ow of bub bles will be seen in the liquid line sight gla[...]

196 YORK INTERNA TIONAL FORM 201.19-NM1 (204) Operating Log COMPRESSOR UNIT OPERA TION YORK Order No. ________________________ Compr . Ser . No. _________________________ Unit Ser . No. ___________________________ Refrigerant _____________________________ CHILLER/COMPRESSOR Operating Log Date T ime Hour Meter Reading Equipment Room T emp./Outdoor T[...]

197 YORK INTERNA TIONAL FORM 201.19-NM1 (204) PROCEDURE WEEKL Y QUARTERL Y SEMI-ANNUALL Y YEAR LY EVER Y ___ HOURS Check oil level in oil separator sight glass X Check liquid line sight glass / moisture indicator X Record system operating pressures and temperatures X Check programmable operating setpoints and safety cutouts and assure they are corr[...]

198 YORK INTERNA TIONAL FORM 201.19-NM1 (204) GENERAL PERIODIC MAINTENANCE CHECKS ST ANDARD UNITS SERVICE SCHEDULE MINOR SERVICE MAJOR SERVICE All items under Minor Service plus: Unit general: Check thermal insulation. Check main structure. Check vibration isolators. Check paint-work. Refrigerant systems general: Check relief valves. Check solenoid[...]

199 YORK INTERNA TIONAL FORM 201.19-NM1 (204) SP ARE P ARTS Recommended Spares It is recommended that the following common spare parts are held for preventative of cor rec tive main te nance op er a tions. Description Part Number Pressure T ransducer 200PSI (14 Bar) 025-29583-000 Pressure T ransducer 400PSI (28 Bar) 025-29139-001 Sensor , High T em[...]

200 YORK INTERNA TIONAL FORM 201.19-NM1 (204) TROUBLESHOOTING GUIDE T roubleshooting PROBLEM POSSIBLE CAUSE ACTION POSSIBLE CAUSE ACTION No display on panel - Main supply to control system OFF . Switch on main supply if safe to do so. unit will not start Emergency stop device off. Check if control panel emergency stop switch and any remote emergenc[...]

201 YORK INTERNA TIONAL FORM 201.19-NM1 (204) TROUBLESHOOTING GUIDE - CONT’D 11 PROBLEM POSSIBLE ACTION SYS # HIGH DSCH displayed (High discharge pressure trip) Poor air fl ow through condenser coils. Check for air fl ow restrictions caused by blockages on intake faces of air coils. Check for damaged fi ns/return bends. Check for correct fan o[...]

202 YORK INTERNA TIONAL FORM 201.19-NM1 (204) T roubleshooting LIMITED W ARRANTY YORK AMERICAS ENGINEERED SYSTEMS W ARRANTY ON NEW EQUIPMENT Y ork International Corporation (“YORK”) warrants all equip- ment and associated factory supplied materials, or start- up services performed by YORK in connection therewith, against defects in workmanship [...]

203 YORK INTERNA TIONAL FORM 201.19-NM1 (204) 11 T emperature Conversion Chart - Actual T emperatures TEMPERA TURE CONVERSION CHART T emperature Conversion Chart - Differential T emperatures Pressure Conversion Chart - Gauge or Differential ° F = ° C °C = °F 0 -17.8 -18 -0.4 4 -15.6 -16 3.2 8 -13.3 -14 6.8 12 -1 1.1 -12 10.4 16 -8.9 -10 14 20 -[...]

T ele. 800-861-1001 www .york.com P .O. Box 1592, Y ork, Pennsylvania USA 17405-1592 Subject to change without notice. Printed in USA Copyright © by Y ork International Corporation 2004 ALL RIGHTS RESER VED Form 201.19-NM1 (204) New Release[...]