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AIR-COOLED SCREW LIQUID CHILLERS INSTALLATION, OPERATION & MAINTENANCE New Release Form 201.19-NM1 (204) 035-20319-000 YCAS AIR-COOLED LIQUID CHILLERS YCAS0130 THROUGH YCAS0230 STYLE G
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  INSTALLATION, OPERATION & MAIN TE NANCE AIR-COOLED SCREW LIQUID CHILLERS New ReleaseForm 201.19-NM1 (204)  YCAS AIR-COOLED LIQUID CHILLERS YCAS0130 THROUGH YCAS0230STYLE G  YCAS 2 SYSTEM EPROM031-01798-001(STANDARD, BRINE & METRIC MODELS COM BINED) 028971-G 60 Hz 035-20319-000  2 YORK INTERNATIONALFORM 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 & Maintenance (IOM) man, which is provided with new equipment. If not found with the manual, the current Revision Sheet containing any applicable revisions, and the manual, can be found on the internet at www.york.com. The Renewal Parts (RP) manual and revision sheet for this equipment can also be found at this internet site.It is the responsibility of installing/operating/service personnel to determine prior to working on the equip- ment, that they have all of the applicable literature, that it is current and that the equipment has not been modi fi ed since manufacture. Revision Sheets are available for the IOM and Renewal PartsEach update will be assigned a sequential Rev. Level with the date it was introducedThe Description/Change will explain the change. If necessary it will refer the reader to an additional supplement or bulletin.YORK part number for the Revision Sheet to aid manufacturing and distributionWeb address for the Revision Sheet035-XXXXX-XXXwww.york.com  3 YORK INTERNATIONALFORM 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 low voltage. Each of these items has the  po ten tial, if misused or handled im  prop er ly, to cause  bodi ly injury or death. It is the obligation and re spon - si  bil i ty of operating/service per son nel to iden ti fy and rec og nize these inherent hazards, protect them selves, and pro ceed safely in completing their tasks. Failure to com  ply with any of these requirements could re sult in se ri ous dam age to the equipment and the prop er ty in IMPORTANT! READ BEFORE PROCEEDING! GENERAL SAFETY GUIDELINES which it is sit u at ed, as well as severe personal injury or death to them selves and people at the site.This document is intended for use by owner-authorized operating/service personnel. It is expected that this in- di vid u al possesses independent training that will en able them to perform their assigned tasks properly and safe ly. It is essential that, prior to performing any task on this equipment, this individual shall have read and un der -stood this document and any referenced materials. This in di vid u al shall also be familiar with and comply with all ap  pli ca  ble governmental standards and regulations  per tain ing to the task in question. SAFETY SYMBOLS The following symbols are used in this document to alert the reader to areas of potential hazard: CAUTION identi    fi es a hazard which could lead to damage to the ma chine, damage to other equip ment and/or en vi ron men tal pollution. Usually an in struc tion will be given, together with a brief ex  pla na tion.  NOTE is used to highlight ad di tion al information which may be helpful to  you. DANGER indicates an im mi nent ly hazardous situation which, if not avoid ed, will re sult in death or se ri ous injury.WARNING indicates a potentially haz ard ous sit u a tion which, if not avoid ed, could result in death or se- ri ous in  ju ry.  External wiring, unless speci    fi ed as an optional connection in the man u  fac tur er’s prod uct line, is NOT to be connected inside the micro pan el cab i net. De vic es such as re lays, switch es, transducers and controls may NOT be installed inside the mi cro pan el. NO external wiring is al lowed to be run through the micro panel. All wir ing must be in ac cor dance with YORK’s  pub lished spec i   fi  ca tions and must be per  formed ONLY by qual i   fi ed YORK personnel. YORK will not be re spon si ble for dam ag es/problems re sult ing from im  prop er con nec tions to the con trols or ap  pli ca tion of im  prop er con trol sig nals. Failure to fol low this will void the man u  fac tur er’s warranty and cause serious dam age to property or injury to per sons.  4 YORK INTERNATIONALFORM 201.19-NM1 (204) TABLE OF CONTENTS SECTION 1 - GENERAL CHILLER INFORMATION & SAFETY INTRODUCTION...........................................................9WARRANTY...................................................................9SAFETY...........................................................................9Standards for Safety...............................................9RESPONSIBILITY FOR SAFETY...............................10ABOUT THIS MANUAL..............................................10MISUSE OF EQUIPMENT...........................................10Suitability for Application....................................10Structural Support................................................10Mechanical Strength.............................................10General Access.....................................................10Pressure Systems..................................................10Electrical...............................................................10Rotating Parts.......................................................11Sharp Edges..........................................................11Refrigerants and Oils............................................11High Temperature and Pressure Cleaning............11Emergency Shutdown...........................................11 SECTION 2 - PRODUCT DESCRIPTION INTRODUCTION.........................................................12General Description..............................................12Compressor...........................................................12Evaporator............................................................13Condenser.............................................................13Economizer...........................................................14Oil Separator/System............................................14Oil Cooling...........................................................14Capacity Control..................................................14Power and Control Panel......................................14Each power compartment contains:.....................15The control section contains:................................15The options sections contain:...............................15Microprocessor Controls......................................15Motor Current Protection.....................................15Motor Protection Modules (2ACE)......................16Current Overload..................................................16Thermal Overload................................................17Current Imbalance (Loaded & Unloaded)............17Loss of Phase........................................................17Improper Phase Sequence....................................17MOTOR STARTING.....................................................22KEYPAD CONTROLS..................................................22Display.................................................................22Program................................................................23ACCESSORIES AND OPTIONS.................................23Multiple Point Power Connection (Standard)......23Single-Point Power Connection with Individual Circuit Protection.................................................23Single-Point Power Connection with Combined Circuit Protection ................................................23Single-Point Power Connection without Circuit Protection ............................................................23Control Circuit Terminal Block............................23Building Automation System (BAS) Interface.....23Condenser Coil Protection ..................................23DX EVAPORATOR AND STARTER OPTIONS.........24UNIT ENCLOSURES OPTIONS.................................24FAN OPTIONS..............................................................24SOUND REDUCTION OPTIONS................................24VIBRATION ISOLATION ...........................................24UNIT NOMENCLATURE............................................25 NAMEPLATE ENGINEERING DATA........................25PRODUCT IDENTIFICATION NUMBER (PIN)........26 SECTION 3 - HANDLING AND STORAGE DELIVERY AND STORAGE.......................................27INSPECTION................................................................27MOVING THE CHILLER............................................27Lifting Weights.....................................................27UNIT RIGGING............................................................28 SECTION 4 - INSTALLATION LOCATION REQUIREMENTS....................................29OUTDOOR INSTALLATIONS....................................29INDOOR INSTALLATIONS........................................29LOCATION CLEARANCES........................................29COMPRESSOR FEET BOLT REMOVAL...................30VIBRATION ISOLATORS ..........................................31Installation............................................................31SHIPPING BRACES.....................................................31PIPEWORK CONNECTION........................................31General Requirements..........................................31WATER TREATMENT..................................................32PIPEWORK ARRANGEMENT....................................33CONNECTION TYPES & SIZES.................................33EVAPORATOR CONNECTIONS................................33Optional Flanges..................................................33REFRIGERANT RELIEF VALVE PIPING..................33DUCTWORK CONNECTION.....................................33General Requirements..........................................33ELECTRICAL CONNECTION....................................34POWER WIRING..........................................................34STANDARD UNITS WITH MULTI POINT POWER SUPPLY WIRING.........................................................34
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