York YCAS0130 - Manuals - manualsarea.com

Page 2 - CHANGEABILITY OF THIS DOCUMENT; ed since manufacture.; Web address for the Revision Sheet

2 YORK INTERNATIONAL 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...

Page 3 - READ BEFORE PROCEEDING!; GENERAL SAFETY GUIDELINES

3 YORK INTERNATIONAL 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 p...

Page 4 - TABLE OF CONTENTS; SECTION 1 - GENERAL CHILLER

4 YORK INTERNATIONAL FORM 201.19-NM1 (204) TABLE OF CONTENTS SECTION 1 - GENERAL CHILLER INFORMATION & SAFETY INTRODUCTION ........................................................... 9WARRANTY ................................................................... 9SAFETY...............................

Page 5 - SECTION 5 - COMMISSIONING

5 YORK INTERNATIONAL FORM 201.19-NM1 (204) TABLE OF CONTENTS (CONT’D) Units with Single-Point Power Supply Wiring .... 34 115VAC CONTROL SUPPLY TRANSFORMER ........ 34 Remote Emergency Stop Device.......................... 35 CONTROL PANEL WIRING........................................ 35VOLTS FREE ...

Page 6 - SECTION 8 - MICRO PANEL CONTENTS; INTRODUCTION & PHYSICAL DESCRIPTION 123

6 YORK INTERNATIONAL FORM 201.19-NM1 (204) TABLE OF CONTENTS (CONT’D) SECTION 8 - MICRO PANEL CONTENTS CHILLERLER CONTROL PANEL PROGRAMMING AND DATA ACCESS KEYS ....... 122DISPLAY AND STATUS INFORMATION KEYS .... 122ON / OFF ROCKER SWITCH.................................... 122PROGRAM & SETUP KE...

Page 7 - SECTION 9 - MAINTENANCE; LIST OF TABLES

7 YORK INTERNATIONAL FORM 201.19-NM1 (204) TABLE 1 – Motor Protector Dip Switch Setting .......... 18TABLE 2 – Programmable Values Table (minimum/maximum) ............................... 175TABLE 3 – Condenser Fan Control and Fan Contactor Data for DXST Units with 4 Fans/System ........................

Page 8 - LIST OF FIGURES

8 YORK INTERNATIONAL FORM 201.19-NM1 (204) LIST OF FIGURES FIG. 23 – MODEL YCAS0130 - 0180 DIMENSIONS (ENGLISH) ......................... 82FIG. 25 – MODEL YCAS0200 - YCAS0230 DIMENSIONS (ENGLISH) ......................... 86FIG. 26 – MODEL YCAS0200 - YCAS0230 DIMENSIONS (SI) ..........................

Page 9 - INTRODUCTION; Standards for Safety; GENERAL CHILLER INFORMATION & SAFETY

9 YORK INTERNATIONAL 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 ...

Page 10 - RESPONSIBILITY FOR SAFETY; General Chiller Information & Safety

10 YORK INTERNATIONAL 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 f...

Page 11 - Rotating Parts; fl; High Temperature and Pressure Cleaning; EMERGENCY SHUTDOWN

11 YORK INTERNATIONAL 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. ...

Page 12 - General Description; Compressor; ciencies and reliable per-; PRODUCT DESCRIPTION; COMPONENT LOCATIONS; Product Description

12 YORK INTERNATIONAL 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 pipi...

Page 13 - Evaporator; SCREW COMPRESSOR

13 YORK INTERNATIONAL 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 ...

Page 14 - Economizer; Oil Cooling

14 YORK INTERNATIONAL 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...

Page 15 - Each power compartment contains:

15 YORK INTERNATIONAL 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 tr...

Page 16 - HAXXX; rst start, the modules’ contacts; Current Overload; ed that the set tings are

16 YORK INTERNATIONAL FORM 201.19-NM1 (204) Motor Protection Modules (2ACE) The mechanical motor protector is a Texas 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 c...

Page 17 - Thermal Overload; unloaded compressor condition; Improper Phase Sequence

17 YORK INTERNATIONAL 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 e...

Page 18 - TABLE 1 –; MOTOR PROTECTOR DIP SWITCH SETTING

18 YORK INTERNATIONAL FORM 201.19-NM1 (204) TABLE 1 – MOTOR PROTECTOR DIP SWITCH SETTING * Indicates one lead/phase through motor protector. YCAS STYLE G, ACROSS-THE-LINE – 60 HZ MODEL VOLT CHILLER NO. MO TOR PROTECTOR NO. CODE NAMEPLATE LEADS RLA PER MP PHASE DISPLAY DIP SWITCH SETTINGS ON MP (“1” ...

Page 19 - MOTOR PROTECTOR DIP SWITCH SETTING (CONT’D)

19 YORK INTERNATIONAL FORM 201.19-NM1 (204) TABLE 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 VOLT CHILLER NO. MO TOR PROTECTOR NO. CODE NAMEPLATE LEADS RLA PER MP PHASE DISPLAY DIP SWITCH SETTINGS O...

Page 20 - YCAS STYLE G, WYE DELTA START – 60 HZ

20 YORK INTERNATIONAL FORM 201.19-NM1 (204) TABLE 1 – MOTOR PROTECTOR DIP SWITCH SETTING (CONT’D) * Indicates one lead/phase through motor protector. YCAS STYLE G, WYE DELTA START – 60 HZ MODEL VOLT CHILLER NO. MO TOR PROTECTOR NO. CODE NAMEPLATE LEADS RLA PER MP PHASE DISPLAY DIP SWITCH SETTINGS ON...

Page 22 - MOTOR STARTING; Display

22 YORK INTERNATIONAL FORM 201.19-NM1 (204) MOTOR STARTING Two types of compressor motor starting are available: Across-the-Line and optional Wye-Delta Open Tran- si tion Start er. Across-the-Line starters will utilize one contactor and one start relay per compressor. The optional Wye-Delta start er...

Page 23 - ACCESSORIES AND OPTIONS

23 YORK INTERNATIONAL FORM 201.19-NM1 (204) Single-Point Power Connection with Combined Cir cuit Protection 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 w...

Page 24 - DX EVAPORATOR AND STARTER OPTIONS; UNIT ENCLOSURES OPTIONS

24 YORK INTERNATIONAL 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 ...

Page 25 - UNIT NOMENCLATURE; OPTIONS MODEL; YCAS; BASIC P

25 YORK INTERNATIONAL FORM 201.19-NM1 (204) UNIT NOMENCLATURE NAMEPLATE ENGINEERING DATA 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 & Lock...

Page 27 - HANDLING AND STORAGE; DELIVERY AND STORAGE; Unit must be “blocked” so that the base is not; INSPECTION; Lifting Weights

27 YORK INTERNATIONAL FORM 201.19-NM1 (204) HANDLING AND STORAGE DELIVERY AND STORAGE To 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. Un...

Page 28 - UNIT RIGGING; Handling and Storage

28 YORK INTERNATIONAL 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

Page 29 - INSTALLATION; LOCATION REQUIREMENTS

29 YORK INTERNATIONAL FORM 201.19-NM1 (204) INSTALLATION LOCATION REQUIREMENTS To 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 ...

Page 30 - Installation; COMPRESSOR FEET BOLT REMOVAL; After the chiller is placed in the; – COMPRESSOR MOUNTING

30 YORK INTERNATIONAL FORM 201.19-NM1 (204) Installation COMPRESSOR FEET BOLT REMOVAL 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 compr...

Page 31 - VIBRATION ISOLATORS; Technical Data; SHIPPING BRACES; General Requirements; The maximum

31 YORK INTERNATIONAL FORM 201.19-NM1 (204) VIBRATION ISOLATORS Optional sets of vibration isolators can be supplied loose with each unit. Using the Isolator tables, refer to the Technical Data Section , identify each mount and its cor rect lo ca tion on the unit. Installation Place each mount in it...

Page 32 - PIPEWORK ARRANGEMENT; Flexible; WATER TREATMENT

32 YORK INTERNATIONAL 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 mu...

Page 33 - Optional Flanges; VICTAULIC GROOVE

33 YORK INTERNATIONAL 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 Vessel Code re quire ments. These are Victaulic-Adapter fl anges, normally supplied loose, or weld fl anges which may be supplied loose or ready fi t...

Page 34 - ELECTRICAL CONNECTION; Units with Single-Point Power Supply Wiring; Units require only one 3-phase supply plus ground.; 15VAC CONTROL SUPPLY TRANSFORMER

34 YORK INTERNATIONAL 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 ...

Page 35 - CONTROL PANEL WIRING

35 YORK INTERNATIONAL FORM 201.19-NM1 (204) 4 Removing high voltage power to the chill er will re move the 115VAC 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. D...

Page 36 - POWER PANEL SECTION; OPTIONAL DISCONNECT SWITCH

36 YORK INTERNATIONAL FORM 201.19-NM1 (204) POWER PANEL LAYOUTS (TYPICAL) FIG. 9 – POWER PANEL SECTION 028972-G Installation (WYE-DELTA - TYPICAL) ( ACROSS THE LINE - TYPICAL) 028973-G OPTIONAL DISCONNECT SWITCH OPTIONAL CIRCUIT BREAKER SWITCH

Page 37 - OPTION PANEL SECTION

37 YORK INTERNATIONAL FORM 201.19-NM1 (204) 4 FIG. 10 – OPTION PANEL SECTION OPTION PANEL LAYOUT (TYPICAL) 00246VIP LOGIC PANEL OPTION PANELWITH SINGLEPOINT TERMINAL BLOCK(OPTIONAL)

Page 38 - PHOTOGRAPH OF; LOGIC SECTION LAYOUT; ITEM

38 YORK INTERNATIONAL FORM 201.19-NM1 (204) Installation 60 Hz Models: PHOTOGRAPH OF 60 HZ MODEL LOGIC SECTION FIG. 11 – LOGIC SECTION LAYOUT LOGIC SECTION LAYOUT 028975-G ITEM 12345678 DESCRIPTION Microprocessor BoardBack of DisplayI/O Expansion Board #1Power Supply BoardRelay Output Board #1Relay ...

Page 39 - LOGIC SECTION LAYOUT WITH CONTROL PANEL

39 YORK INTERNATIONAL FORM 201.19-NM1 (204) 4 FIG. 12 – LOGIC SECTION LAYOUT WITH CONTROL PANEL LOGIC SECTION LAYOUT WITH CONTROL PANEL 028976-G

Page 40 - CUSTOMER CONNECTIONS; CUSTOMER

40 YORK INTERNATIONAL FORM 201.19-NM1 (204) Installation FIG. 13 – CUSTOMER CONNECTIONS CUSTOMER CONNECTIONS LD03502 CONNECTIONPOINTS FOREMERGENCYSTOPS TERMINALS 13-34 028977-G Print Temperature 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 S...

Page 42 - or cop per line, but do not tighten the; COMMISSIONING; PREPARATION; Millennium; PREPARATION – POWER OFF; Commissioning

42 YORK INTERNATIONAL 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 betwee...

Page 43 - The machine is now live!

43 YORK INTERNATIONAL 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” (...

Page 44 - cient heat load

44 YORK INTERNATIONAL FORM 201.19-NM1 (204) Commissioning FIRST TIME START-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 sio...

Page 45 - This page intentionally left blank.

45 YORK INTERNATIONAL FORM 201.19-NM1 (204) 5 This page intentionally left blank.

Page 46 - Op er a tion; GENERAL DESCRIPTION; NORMAL RUNNING AND CYCLING; ciency while main tain ing suf-; SHUTDOWN; OPERATION

46 YORK INTERNATIONAL 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 li...

Page 48 - TECHNICAL DATA; FLOW RATE AND PRESSURE DROP CHARTS; Excessive; GLYCOL CORRECTION FACTORS; GLYCOL CORRECTION EXAMPLE:

48 YORK INTERNATIONAL FORM 201.19-NM1 (204) TECHNICAL DATA 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...

Page 49 - TEMPERATURE AND FLOWS

49 YORK INTERNATIONAL FORM 201.19-NM1 (204) TEMPERATURE AND FLOWS (ENGLISH UNITS) Excessive fl ow, above the max GPM, will damage the evaporator. MODEL NUMBER YCAS LEAVING WATER TEMPERATURE (°F) EVAPORATOR FLOW (GPM 3 ) AIR ON CONDENSER (°F) MIN. 1 MAX. 2 MIN. MAX. MIN. MAX 0130EC 40 55 138 525 0 12...

Page 51 - PHYSICAL DATA; ENGLISH UNITS

51 YORK INTERNATIONAL FORM 201.19-NM1 (204) PHYSICAL DATA ENGLISH UNITS 7 MODEL NUMBER YCAS 0130EC 0140EC 0150EC 0160EC 0170EC 0180EC 0200EC 0210EC 0230EC General Unit Data Unit Capacity at ARI Conditions, Tons 121.1 130.1 145.3 157.1 164.3 171.6 186.7 194.8 209.1 Number of Independent Refrigerant C...

Page 52 - SI UNITS

52 YORK INTERNATIONAL FORM 201.19-NM1 (204) PHYSICAL DATA SI UNITS Technical 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...

Page 53 - OPERATING LIMITATIONS AND SOUND POWER DATA; OPERATING LIMITATIONS –

53 YORK INTERNATIONAL FORM 201.19-NM1 (204) OPERATING LIMITATIONS AND SOUND POWER DATA 7 OPERATING LIMITATIONS – ENGLISH UNITS * Maximum Ambient w/ High Ambient Kit is 130°F. MIN MAX LEAVING CHILLED LIQUID TEMP ( °F) 40.1 59 CHILLED WATER TEMP DIFFERENCE ( °F) 5.5 18 WATER SIDE PRESSURE (PSIG) 150 R...

Page 54 - ELECTRICAL DATA; MULTIPLE POINT POWER SUPPLY CONNECTION; Two; Start and

54 YORK INTERNATIONAL FORM 201.19-NM1 (204) ELECTRICAL DATA Technical Data MULTIPLE POINT POWER SUPPLY CONNECTION Two fi eld provided power sup ply cir cuits to the unit. Field Power Wiring connections to fac to ry provided, Non-Fused Dis con nect Switches (Opt), Circuit Breakers (Opt) or Ter mi nal...

Page 56 - One; COMPRESSOR UNITS

56 YORK INTERNATIONAL FORM 201.19-NM1 (204) ELECTRICAL DATA Technical 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 Terminal Block (Opt). Factory con nec tions to Circuit Breakers on Ter mi nal Blocks in e...

Page 61 - COMPRESSOR DATA; MAXIMUM kW AND AMPERAGE VALUES FOR DXST COMPRESSORS

61 YORK INTERNATIONAL FORM 201.19-NM1 (204) ELECTRICAL DATA COMPRESSOR DATA MAXIMUM kW AND AMPERAGE VALUES FOR DXST COMPRESSORS COMPRESSOR MODEL AND VOLTAGE CODE DXS45LA – MOTOR CODE A DXS36LA – MOTOR CODE A DXS24LA – MOTOR CODE (TBD) (B5N, B5E, B6N, B6E) (A5N, A5E, A6N, A6E) (C5N, C5E, C6N, C6E)VOL...

Page 62 - ELECTRICAL NOTES; CONTROL MCA MAX DUAL NON-FUSED

62 YORK INTERNATIONAL 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 Tr...

Page 64 - WIRING DIAGRAM

64 YORK INTERNATIONAL FORM 201.19-NM1 (204) Technical Data WIRING DIAGRAM ACROSS-THE-LINE START 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...

Page 66 - ELEMENTARY DIAGRAM; ELEMENTARY DIAGRAM – ACROSS-THE-LINE START

66 YORK INTERNATIONAL FORM 201.19-NM1 (204) Technical Data ELEMENTARY DIAGRAM FIG. 19 – ELEMENTARY DIAGRAM – ACROSS-THE-LINE START 3 4 6 5 LD09234

Page 67 - CONTR

67 YORK INTERNATIONAL FORM 201.19-NM1 (204) CAUTION: No Controls (relays, etc.) should be mount ed in the Smart Panel en clo sure or con nect ed to pow er sup plies in the control pan el. Additionally, con trol wir ing not con nect ed to the Smart Panel should not be run through the cabinet. This co...

Page 68 - WIRING DIAGRAM – WYE-DELTA START

68 YORK INTERNATIONAL FORM 201.19-NM1 (204) Technical Data WIRING DIAGRAM WYE-DELTA START FIG. 20 – WIRING DIAGRAM – WYE-DELTA START 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....

Page 69 - ELEMENTARY DIAGRAM – WYE-DELTA START

69 YORK INTERNATIONAL FORM 201.19-NM1 (204) WIRING DIAGRAM WYE-DELTA START FIG. 21 – ELEMENTARY DIAGRAM – WYE-DELTA START 7 LD09236

Page 73 - CONTROL PANEL COMPONENT LOCATION

73 YORK INTERNATIONAL FORM 201.19-NM1 (204) LD09239 FIG. 22B – CONTROL PANEL COMPONENT LOCATION 7

Page 78 - COMPRESSOR TERMINAL BOX

78 YORK INTERNATIONAL FORM 201.19-NM1 (204) Technical Data COMPRESSOR TERMINAL BOX LD09243

Page 83 - YCAS X Y Z

83 YORK INTERNATIONAL FORM 201.19-NM1 (204) DIMENSIONS – YCAS0130 - YCAS0180 (ENGLISH) 7 LD03744 CONTROL/ OPTIO NS A B C D E F G H LD03743 CENTER OF GRAVITY (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"...

Page 90 - CLEARANCES

90 YORK INTERNATIONAL FORM 201.19-NM1 (204) (1.3 m) (2 m) (2 m) (2 m) TECHNICAL DATA 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. LD07011 FIG. 27 – CLEARANCES Technical Data

Page 91 - Aluminium and Black Fin Condenser Coils; WEIGHT DISTRIBUTION AND ISOLATOR MOUNTING POSITIONS

91 YORK INTERNATIONAL FORM 201.19-NM1 (204) 7 Aluminium and Black Fin Condenser Coils WEIGHT DISTRIBUTION AND ISOLATOR MOUNTING POSITIONS LD09472 A F B D C E G H 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 TOTAL 0130 1,956 1,633 1,309 986 1,908 1,593 1...

Page 92 - ISOLATOR MAX LOAD DEFL. SPRING; ISOLATOR DETAILS

92 YORK INTERNATIONAL FORM 201.19-NM1 (204) Technical Data Aluminium and Black Fin Condenser Coils WEIGHT DISTRIBUTION AND ISOLATOR MOUNTING POSITIONS ISOLATOR 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...

Page 93 - TYPE AWMR ISOLATOR DETAILS; ISOLATOR

93 YORK INTERNATIONAL FORM 201.19-NM1 (204) 7 LD02973 AWMR-1-XXX LD02974 AWMR-2-XXX Aluminium and Black Fin Condenser Coils WEIGHT DISTRIBUTION AND ISOLATOR MOUNTING POSITIONS FIG. 29 – TYPE AWMR ISOLATOR DETAILS A B C D E F G H I J K L M N/X AWMR-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...

Page 95 - Copper Fin Condenser Coils

95 YORK INTERNATIONAL FORM 201.19-NM1 (204) 7 Copper Fin Condenser Coils WEIGHT DISTRIBUTION AND ISOLATOR 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 Total 0130 2,066 1,774 1,483 1,192 2,020 1,735 1,450 1,165 --- --- --- --- -...

Page 99 - Aluminium Fin Condenser Coils

99 YORK INTERNATIONAL FORM 201.19-NM1 (204) 7 Aluminium Fin Condenser Coils with Silencer Kit WEIGHT DISTRIBUTION AND ISOLATOR 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 Total 0130 2,066 1,774 1,483 1,192 2,020 1,735 1,450 1,165 ---...

Page 101 - Aluminium Fin Condenser Coils with Silencer Kit

101 YORK INTERNATIONAL FORM 201.19-NM1 (204) 7 LD02973 AWMR-1-XXX LD02974 AWMR-2-XXX WEIGHT DISTRIBUTION AND ISOLATOR MOUNTING POSITIONS FIG. 33 – TYPE AWMR ISOLATOR DETAILS A B C D E F G H I J K L M N/X AWMR-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 11NC 5/8 AWMR-2 15...

Page 102 - Aluminum Fin Condenser Coils

102 YORK INTERNATIONAL FORM 201.19-NM1 (204) Technical Data DEFLECTION COLOR MAX. LOAD ins. (mm) TYPE CODE lbs. (kg) R RD R-3 BLACK 250 (113.5) 0.25 0.50 OR RED 525 (238.3) (6.3) (12.7) RD-3 GREEN 750 (340.5) GRAY 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-...

Page 103 - Copper Fin Condenser Coils with Silencer Kit

103 YORK INTERNATIONAL FORM 201.19-NM1 (204) 7 Copper Fin Condenser Coils with Silencer Kit WEIGHT DISTRIBUTION AND ISOLATOR 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 Total 0130 2,131 1,916 1,701 1,486 2,08...

Page 107 - INSTALLATION INSTRUCTIONS FOR

107 YORK INTERNATIONAL FORM 201.19-NM1 (204) INSTALLATION INSTRUCTIONS FOR VMC SERIES AWR/AWMR 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 ba...

Page 108 - REFRIGERANT FLOW DIAGRAM

108 YORK INTERNATIONAL 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 ...

Page 109 - PROCESS AND INSTRUMENTATION DIAGRAM; SYSTEM COMPONENTS

109 YORK INTERNATIONAL FORM 201.19-NM1 (204) PROCESS AND INSTRUMENTATION DIAGRAM FIG. 37 – PROCESS AND INSTRUMENTATION DIAGRAM LD09429 7 OC CDR AIR FLOW DV HTC LTC DV DIF DV HTC OS T P PS T P DV HTC DV HPC HPLDPF COMP HTR P T SHV HTR T DV CHT LTC FS CLR CHILLED WATER FLOW T DV S P P T FS PS HTR SYST...

Page 110 - Control Panel

110 YORK INTERNATIONAL FORM 201.19-NM1 (204) COMPONENT LOCATIONS FIG. 38 – COMPONENT LOCATIONS LD07012 Technical Data Control Panel BAMB 1-BDP 1-BOT EEH1 1-ZCPR 1-CCCV 1-ECH 1-XCMTB 2-YELSSV EEH1 - BAMB AMBIENT - BCLT COLD LEAVING TEMPERATURE - BCRT COLD RETURN TEMPERATURE - BDP DISCHARGE PRESSURE -...

Page 111 - COMPRESSOR COMPONENTS

111 YORK INTERNATIONAL FORM 201.19-NM1 (204) COMPRESSOR COMPONENTS FIG. 39 – COMPRESSOR COMPONENTS SUCTION GAS IN MOTOR TERMINALS LIFTING LUG THREADED HOLE OIL HEATER ECONOMIZER GAS IN DISCHARGE CASE OIL INLET FROM CONDENSER COOLING COIL DISCHARGE GAS OUT OIL FILTER BLEED &EVACUATION POINT OIL F...

Page 112 - COMPRESSOR COMPONENTS – CONT’D

112 YORK INTERNATIONAL FORM 201.19-NM1 (204) COMPRESSOR COMPONENTS – CONT’D FIG. 40 – COMPRESSOR COMPONENTS LD03669 Technical Data

Page 115 - NO. PART NAME

115 YORK INTERNATIONAL FORM 201.19-NM1 (204) COMPRESSOR COMPONENTS – CONT’D NO. PART NAME 1 O-RING 2 SUCTION COVER 3 SUCTION STRAINER 4 ROTOR SCREW 5 ROTOR LOCK WASHER 6 ROTOR CLAMP WASHER 7 ROTOR 8 STATOR 9 MALE INLET BEARING 10 MALE ROTOR RETAINING RING 11 MALE ROTOR 12 ROTOR CASE 13 O-RING 14 DOW...

Page 117 - SYSTEM STARTUP CHECKLIST

117 YORK INTERNATIONAL FORM 201.19-NM1 (204) SYSTEM STARTUP 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 ...

Page 118 - PROGRAMMED VALUES; Range =; PANEL CHECKS; SWITCH

118 YORK INTERNATIONAL 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 VALUES Display Language = ___________________...

Page 119 - CHECKING SUBCOOLING AND SUPERHEAT; SYS 1 SYS 2

119 YORK INTERNATIONAL 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 SUPERHEAT The subcooling should always be checked when charg- ing the sys...

Page 120 - Record the suc tion tem per a ture, suction pres sure,; LEAK CHECKING; ttings, and pip ing to; SYS 1 SYS 2

120 YORK INTERNATIONAL FORM 201.19-NM1 (204) If equipped with an economizer, the economizer will provide approxi-mately an additional 20ºF (11.1ºC) subcooling at the expansion valve in ambients above 90ºF (32ºC). Below 90ºF (32ºC), the economizer will not provide additional subcooling. After the sub...

Page 122 - DISPLAY AND STATUS INFORMATION KEYS; keys are also used for scrolling through in for -; Micro Panel Contents

122 YORK INTERNATIONAL FORM 201.19-NM1 (204) 29023A CHILLER CONTROL PANEL PROGRAMMING AND DATA ACCESS KEYS CLOCK SETPOINTS PROGRAM &SETUP KEY ON / OFF DISPLAYINFORMATION KEYS STATUS PRINT DISPLAY AND STATUS INFORMATION KEYS Status Key - see Section 2 This key provides a display of the current op...

Page 124 - MICROPROCESSOR BOARD; System Switches 1 - 4; ANCILLARY CIRCUIT BOARDS; Power Sup ply Board

124 YORK INTERNATIONAL 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 t...

Page 125 - Relay Output Boards; CIRCUIT BREAKERS; for control sys tem cir cuit ry ser vic ing: spe ci; MOTOR PROTECTION MODULES

125 YORK INTERNATIONAL 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 Ou...

Page 127 - MOTOR PROTECTION MODULE; TOP VIEW; SIDE VIEW

127 YORK INTERNATIONAL FORM 201.19-NM1 (204) FIG. 45 – MOTOR PROTECTION MODULE SIDE VIEW 29119A 8 * DISPLAY *NORMAL FLASHESH A _ _ _ . W H E N IDLE, AND FLASHING CIRCLE WHEN SYSTEM IS RUNNING. ON NUMERICAL VALUES 29121A TOP VIEW TOP VIEW 29121A INTEGRAL C.T.'S (3) SWITCH PUSHED TO LEFT INDICATESON. ...

Page 128 - CONTROLS; Nev er bypass a; Remote Current Reset; Closing the input contact for a de; rst press any

128 YORK INTERNATIONAL 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 ...

Page 129 - Remote Setpoint Temperature Reset; To determine the new setpoint; , add the reset to the; the; This new; rst press any oth er dis play

129 YORK INTERNATIONAL FORM 201.19-NM1 (204) Wiring 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) i...

Page 130 - DESCRIPTION; MICROPROCESSOR BOARD LAYOUT; COMPONENT LAYOUT

130 YORK INTERNATIONAL FORM 201.19-NM1 (204) ITEM 12 3 4 5 DESIGNATION J18 RTC (U13) EPROM S1 S2 to S5 DESCRIPTION Clock Enable/Disable Jump ContactReal Time 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...

Page 131 - 0 HZ MODEL LOGIC SECTION

131 YORK INTERNATIONAL FORM 201.19-NM1 (204) 1.12 LOGIC SECTION LAYOUT 60 Hz Models : FIG. 47 – LOGIC SECTION LAYOUT 028980-G 1 2 5 6 4 3 7 8 60 HZ MODEL LOGIC SECTION ITEM 12345678 DESCRIPTION Microprocessor Board Back of Keypad I/O Expansion Board # 1 Power Supply Board Relay Output Board #1 Relay...

Page 132 - cient time to cool before it is restarted.; TIMER

132 YORK INTERNATIONAL FORM 201.19-NM1 (204) 1.13 ANTI-RECYCLE TIMER The programmable Anti-Recycle Timer 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 ano...

Page 133 - LEAD / LAG COMPRESSOR SELECTION

133 YORK INTERNATIONAL 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 ...

Page 134 - ECONOMIZER SOLENOID CONTROL; For the

134 YORK INTERNATIONAL 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 ...

Page 136 - GENERAL STATUS MESSAGES

136 YORK INTERNATIONAL FORM 201.19-NM1 (204) 2. STATUS KEY: GENERAL STATUS MESSAGES & FAULT WARNINGS 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 ...

Page 137 - Run Permissive Contacts OPEN:; System Loading Requirement:; WARNINGS; Low Battery Warning

137 YORK INTERNATIONAL 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 ...

Page 138 - Incorrect Unit Type Warning:; ANTICIPATION CONTROL STATUS; Discharge Pressure Limiting:; See; Incorrect Refrigerant Warning:; nitely on power res to ra tion and the chiller

138 YORK INTERNATIONAL FORM 201.19-NM1 (204) The U13 RTC 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 indicat...

Page 139 - High Ambient Temperature Cutout:; UNIT FAULT STATUS MESSAGES; ed and cooling demand requires; Low Ambient Temperature Cutout:; Suction Temperature Limiting:

139 YORK INTERNATIONAL 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 Temp...

Page 140 - High Discharge Pressure Cutout:; Never bypass a; MESSAGES; S Y S # N O R U N P E R M

140 YORK INTERNATIONAL FORM 201.19-NM1 (204) High Discharge Pressure 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 Discharge Pressure Safety is pro gram ma ble f...

Page 141 - Low Suction Pressure Cutout:; Low Oil Differential Pressure Cutout:; AMBIENT TEMP RAMP TIME; High Oil Temperature Cutout:; Suction Pressure Cutout With; SUCTION PRESSURE CUTOUT; S Y S # L O W O I L D I F F

141 YORK INTERNATIONAL FORM 201.19-NM1 (204) Low Suction Pressure 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 ...

Page 142 - Low Motor Current Safety prevents

142 YORK INTERNATIONAL FORM 201.19-NM1 (204) S Y S # L O W C U R R / M P / H PS 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 ...

Page 143 - PRINTOUT ON FAULT SHUTDOWN; ciencies; Motor Protection Module

143 YORK INTERNATIONAL FORM 201.19-NM1 (204) 407C units. If the refrigerant temperature falls below 20°F (11.1°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. ...

Page 144 - CHILLED LIQUID TEMPS KEY; L C H L T = 4 4 . 2 ° F

144 YORK INTERNATIONAL 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 Temperatures key is pressed a disp...

Page 145 - Slide valve position is AP PROX I MATE; AMBIENT TEMP KEY

145 YORK INTERNATIONAL FORM 201.19-NM1 (204) 3.3 SYSTEM # DATA 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 discharge pres sure (DP), oil temperature, suction temperature (ST), dis charge tempera...

Page 146 - rst Option Switch message.; OPERATING HRS / START COUNTER KEY; Maximum; DIP SWITCH SETTINGS

146 YORK INTERNATIONAL 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 s...

Page 147 - SWITCH 3: Refrigerant; ENLARGED PHOTOGRAPH OF DIP; DO NOT USE THIS POSITION.

147 YORK INTERNATIONAL 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). Val 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 Ope...

Page 148 - Placing the switch in the OPEN position, con; KEY; Standard Options Enabled.

148 YORK INTERNATIONAL 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 condi...

Page 149 - OPERATING DATA –; YCAS 2 System Models :; Repetitively pressing the; OPER DATA KEY; L O A D T I M E R 1 0 S E C

149 YORK INTERNATIONAL 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 OPERATING DATA – LOCAL DISPLAY MESSAGES YCAS 2 System Models : When the Operati...

Page 150 - The following sequence of three displays are provided; PWM CURR – EMS PWM Current Limiting Enabled

150 YORK INTERNATIONAL 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 ...

Page 151 - S Y S # F A N S T A G E 3; SOFTWARE VERSION; S O F T W A R E V E R S I O N

151 YORK INTERNATIONAL 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 NE 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...

Page 152 - HISTORY KEY; S H U T D O W N O C C U R R E D

152 YORK INTERNATIONAL 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 DEGFSAT DISCHARGE TEMP 74.5 DEGFDISCHARGE SUPERHEAT 6.3 DEGFSLIDE VALVE STEP 0EEV OUTPUT 0.0 %EVAPORATOR INLET REFRIG 44.6 DEGFLIQU...

Page 153 - (HEAT RECOVERY MUST BE

153 YORK INTERNATIONAL FORM 201.19-NM1 (204) 8 Repetitively pressing the Keys allows scrolling through the information available in the Safety Shut- down buffer. This is divided into Chill er Data and Indi-vidual System Data displays as follows: Chiller Data: This message indicates the fault that ca...

Page 154 - rst for

154 YORK INTERNATIONAL 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 ch...

Page 156 - FAULT HISTORY DATA –

156 YORK INTERNATIONAL FORM 201.19-NM1 (204) Micro Panel Contents 4.7 FAULT HISTORY DATA – 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 HISTORY Key with an optional printer in stalled. 2 compressor chillers ...

Page 157 - KEYPAD; rst character to be programmed in the; KEYS; The

157 YORK INTERNATIONAL FORM 201.19-NM1 (204) 8 5. ENTRY 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 KEYPAD The Numerical keypad provides all keys necessary to program numerical values into the Micro...

Page 158 - SETPOINTS KEYS & CHILLED LIQUID CONTROL; cien cy by spreading the cooling load be-; CHILLED LIQUID TEMPERATURE

158 YORK INTERNATIONAL 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...

Page 159 - Slide Valve Control; Load Timers; • Load Timers are always set at 10 seconds be tween; Slide Valve Position; ERROR; Negative Unload Unload Hold; RATE; Negative Zero Positive

159 YORK INTERNATIONAL FORM 201.19-NM1 (204) 8 to the Setpoint Temperature. The amount of load ing is var ied by changing the amount of DC Voltage signal to the slide valve solenoid of each compressor. Voltage increases with load (0 - approximately 9VDC at full load). Slide Valve Control The slide v...

Page 160 - Compressor Unloading and Shutdown Sequence; ANTICIPATORY LOAD LIMITING CONTROLS; c system, even though there is a need for addi-; Percentage of Motor

160 YORK INTERNATIONAL 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 ...

Page 161 - ANTICIPATORY UNLOADING CONTROLS

161 YORK INTERNATIONAL 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: Temperature Difference Between Saturated Suc- tion Temperatur...

Page 162 - LOCAL COOLING SETPOINTS KEY; rst digit of the Range as shown:; REMOTE COOLING SETPOINTS KEY; ned period of time and allows reset of the set point

162 YORK INTERNATIONAL 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 Chi...

Page 163 - rst digit of the; O U T O F R A N G E -; SET TIME KEY; rst digit of the time as shown:; T O D A Y I S M O N 1 1 . 1 2 A M

163 YORK INTERNATIONAL 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...

Page 164 - When the display appears, the cursor will; SET SCHEDULE / HOLIDAY KEY

164 YORK INTERNATIONAL FORM 201.19-NM1 (204) Programming the DAILY 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 need...

Page 165 - MANUAL OVERRIDE KEY; M A N U A L

165 YORK INTERNATIONAL 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 th...

Page 166 - High Discharge Pressure Cut-Out; rst 5 seconds of operation after which if the cut out point; P R O G R A M M O D E

166 YORK INTERNATIONAL 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 p...

Page 167 - High Discharge Pressure Unload Point; S U C T I O N P R E S S U R E; Programmed

167 YORK INTERNATIONAL 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). To program the Discharge Pressure Cutout, key in the desired value and press the Enter key to store the...

Page 168 - Low Leaving Liquid Temperature Cutout; L O W A M B I E N T T E M P

168 YORK INTERNATIONAL FORM 201.19-NM1 (204) To 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 Temperature Cutout The Low Leaving Liquid Temperature Cutout protects the evaporator ...

Page 169 - Local/Remote Communications

169 YORK INTERNATIONAL 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 ...

Page 170 - To program the default values into memory,; Automatic/Manual Power Failure Restart

170 YORK INTERNATIONAL 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 defa...

Page 171 - Program Value

171 YORK INTERNATIONAL FORM 201.19-NM1 (204) 8 Program Value 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...

Page 172 - ELECTRONIC EXPANSION VALVE; ELECTRONIC EXPANSION VALVE; IN

172 YORK INTERNATIONAL FORM 201.19-NM1 (204) Micro Panel Contents 8.4 ELECTRONIC EXPANSION VALVE ELECTRONIC EXPANSION VALVE The Electronic Expansion Valve (EEV) is an electroni-cally controlled expansion valve. The control algo-rithms to control the EEV reside in the micorprocessor software. The sup...

Page 173 - EEV OPERATION; 4VAC HEAT MOTOR

173 YORK INTERNATIONAL FORM 201.19-NM1 (204) EEV OPERATION 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...

Page 174 - LOW SUPERHEAT CUTOUT SAFETY; SENSOR FAILURE CUTOUT SAFETY; S U C T S H E A T = X X X . X o F; OPERATING DATA PRINTOUT

174 YORK INTERNATIONAL 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 hea...

Page 175 - PROGRAM MODE DISPLAYS; PROGRAM VALUE MODE LOW LIMIT HIGH LIMIT DEFAULT; TABLE 2

175 YORK INTERNATIONAL FORM 201.19-NM1 (204) PROGRAM MODE DISPLAYS The following value is programmable under the PRO-GRAM key (See Table 2).· System Suction Superheat Setpoint (9.0°F to 15.0°F) (5.0ºC to 8.3ºC) EXPANSION VALVE OPTIONS DISPLAY When the expansion valve type is set to ther mo stat ic b...

Page 176 - EEV TROUBLESHOOTING; TROUBLESHOOTING; The system shuts down on Low Suction

176 YORK INTERNATIONAL 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 · Verify that all refrigerant valves are open.· Verify that the system is not low on charge.· Verify th...

Page 177 - CONDENSER FAN LAYOUT FOR DXST 2; CONDENSER FAN CONTROL

177 YORK INTERNATIONAL 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 Temperature (OAT) and Discharge Pressure (DP). There are 4 or 5 stages of fan control, utilizing 3 outputs per system. Th...

Page 178 - TABLE 3 –; TABLE 4 –; CONDENSER FAN CONTROL AND FAN CONTACTOR DATA FOR DXST UNITS

178 YORK INTERNATIONAL FORM 201.19-NM1 (204) Fan ON * ** OFF * Fan Wire Relay Stage Fans Conditions Conditions Contactor Number Board DP DP & OAT Output* S 1 1 >230 PSIG <160 PSIG & <60°F 9M 130 15 Y 2 5 & 7 >250 PSIG <180 PSIG & <65°F 11M & 12M 132 10 S 3 1, 5,...

Page 179 - ** The chiller must always be programmed for YCAS; TABLE 5 –; SERVICE MODE

179 YORK INTERNATIONAL 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-...

Page 180 - TABLE 6 –

180 YORK INTERNATIONAL FORM 201.19-NM1 (204) Micro Panel Contents TABLE 6 – YCAS STYLE G, ACROSS THE LINE START - 60 HZ. MODEL NO. VOLTAGE CODE CHILLER NAMEPLATE RLA NO. OF LEADS PER PHASE THRU CT. 100% FLA OF SYSTEM MP INPUT VOLTAGE 130 17 246 *2 266 3.65 28 214 *2 231 3.2 40 130 2 140 3.89 46 107 ...

Page 181 - TABLE 6 –

181 YORK INTERNATIONAL FORM 201.19-NM1 (204) 8 TABLE 6 – YCAS STYLE G, ACROSS THE LINE START - 60 HZ. (CONT'D) MODEL NO. VOLTAGE CODE CHILLER NAMEPLATE RLA NO. OF LEADS PER PHASE THRU CT. 100% FLA OF SYSTEM MP INPUT VOLTAGE 200 17 342 *4 369 2.55 28 298 *4 322 2.24 40 181 *2 195 2.71 46 149 2 161 4....

Page 182 - TABLE 7 –

182 YORK INTERNATIONAL FORM 201.19-NM1 (204) Micro Panel Contents TABLE 7 – YCAS STYLE G, WYE DELTA START - 60 HZ. MODEL NO. VOLTAGE CODE CHILLER NAMEPLATE RLA NO. OF LEADS PER PHASE 100% FLA OF SYSTEM MP SET POINT VOLTAGE 130 17 246 *4 266 2.13 28 214 *2 231 3.71 40 130 2 140 3.89 46 107 2 116 3.20...

Page 183 - TABLE 7 –

183 YORK INTERNATIONAL FORM 201.19-NM1 (204) 8 TABLE 7 – YCAS STYLE G, WYE DELTA START - 60 HZ. (CONT'D) MODEL NO. VOLTAGE CODE CHILLER NAMEPLATE RLA NO. OF LEADS PER PHASE THRU CT. 100% FLA OF SYSTEM MP INPUT VOLTAGE 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 ...

Page 184 - SERVICE MODE: VIEWING INPUTS AND OUTPUTS; S Y S 1 R U N P E R M

184 YORK INTERNATIONAL 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 DATA key. The UP and DOWN arrow keys can then be used to scroll throug...

Page 185 - Ambient Temperature Sensor; SENSOR CALIBRATION CHARTS; Pressure Transducers

185 YORK INTERNATIONAL FORM 201.19-NM1 (204) 8 Ambient Temperature Sensor Temperature Voltage °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°) 3.11 95° (35°) 3.35 104° (40°) 3.57 TEST POINTS: Leaving Water ...

Page 186 - DIGITAL OUTPUTS

186 YORK INTERNATIONAL FORM 201.19-NM1 (204) Micro Panel Contents Tables 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 Boar...

Page 187 - ANALOG INPUTS

187 YORK INTERNATIONAL 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. Table 9 lists all of the analog inputs and whether they are o...

Page 188 - DIGITAL INPUTS; ANALOG OUTPUTS

188 YORK INTERNATIONAL FORM 201.19-NM1 (204) Micro Panel Contents DIGITAL INPUTS Table 10 lists all of the digital inputs and whether they are on the Microboard or the I/O Expansion Board. TABLE 10 - DIGITAL INPUTS ANALOG OUTPUTS Table 11 lists all the analog outputs and what output board they are o...

Page 189 - rst 4 are analog values and the last 4 are; TRANSMITTED DATA; ISN RECEIVED DATA; ISN TRANSMITTED DATA

189 YORK INTERNATIONAL FORM 201.19-NM1 (204) 8 RECEIVED DATA (CONTROL DATA) 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 CA...

Page 192 - ISN OPERATIONAL AND FAULT CODES; * The operational and fault codes are de

192 YORK INTERNATIONAL 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 VAC Under Voltage 2 System Switch Off 2 Low Ambient Temperature 3 Lock - Out 3 High Ambient Temperature 4 Unit Fault 4 Low Leaving ...

Page 194 - GENERAL REQUIREMENTS; ed Service Engineer.; ca tions or ancillary equipment; Daily/Weekly Maintenance; : Press the ‘STATUS’ key on the keypad; Refrigerant Leaks; compressors and pipework for damage and gas leaks.; CONDENSER COILS; Operating conditions; : Read the operating pressures and; Compressor oil level; : Check the compressor oil level; MAINTENANCE; Maintenance

194 YORK INTERNATIONAL 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 ...

Page 195 - Refrigerant charge; times after a change of capacity, a; Chiller / Compressor Operating Log; OVERALL UNIT INSPECTION

195 YORK INTERNATIONAL FORM 201.19-NM1 (204) 9 "L" Type 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...

Page 196 - Operating Log; COMPRESSOR UNIT OPERATION

196 YORK INTERNATIONAL FORM 201.19-NM1 (204) Operating Log COMPRESSOR UNIT OPERATION YORK Order No. ________________________ Compr . Ser . No. _________________________ Unit Ser . No. ___________________________ Refrigerant _____________________________ CHILLER/COMPRESSOR Operating Log Date T ime Ho...

Page 197 - MAINTENANCE REQUIREMENTS FOR

197 YORK INTERNATIONAL 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 setp...

Page 198 - GENERAL PERIODIC MAINTENANCE CHECKS; SERVICE SCHEDULE MINOR SERVICE

198 YORK INTERNATIONAL FORM 201.19-NM1 (204) GENERAL PERIODIC MAINTENANCE CHECKS STANDARD 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 syst...

Page 199 - SPARE PARTS; Recommended Spares; Description; Recommended Compressor Oils; REFRIGERANT COMPRESSOR OIL

199 YORK INTERNATIONAL FORM 201.19-NM1 (204) SPARE PARTS 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 Transducer 200PSI (14 Bar) 025-29583-000Pressure Transducer 400P...

Page 200 - TROUBLESHOOTING GUIDE; Troubleshooting; PROBLEM POSSIBLE CAUSE ACTION

200 YORK INTERNATIONAL FORM 201.19-NM1 (204) TROUBLESHOOTING GUIDE Troubleshooting 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 pane...

Page 201 - TROUBLESHOOTING GUIDE - CONT’D; PROBLEM

201 YORK INTERNATIONAL FORM 201.19-NM1 (204) TROUBLESHOOTING GUIDE - CONT’D 11 PROBLEM POSSIBLE ACTION SYS # HIGH DSCHdisplayed (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 f...

Page 202 - LIMITED WARRANTY YORK AMERICAS ENGINEERED SYSTEMS; WARRANTY ON NEW EQUIPMENT

202 YORK INTERNATIONAL FORM 201.19-NM1 (204) Troubleshooting LIMITED WARRANTY YORK AMERICAS ENGINEERED SYSTEMS WARRANTY 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 t...

Page 203 - TEMPERATURE CONVERSION CHART

203 YORK INTERNATIONAL FORM 201.19-NM1 (204) 11 Temperature Conversion Chart - Actual Temperatures TEMPERATURE CONVERSION CHART Temperature Conversion Chart - Differential Temperatures 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....