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It explains system construction, monitored parameters, programmed timed start/stop scheduling, and message displays. The manual details operating procedures, system components, preventive maintenance tasks, troubleshooting scope, and servicing practices for refrigerant circuits and motor insulation testing. It also includes safety warnings about refrigerant pressure and requirements for qualified service technicians.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/form-16048-o1-system-operation-and-maintenance-manual/641310/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/form-16048-o1-system-operation-and-maintenance-manual/641310.png","ImageObject",300,407,{"name":92,"@type":93},"CatatanPagi","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-31","2026-10-22",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What does the MicroComputer Control Center manage for the chiller?","Question",{"text":112,"@type":113},"It monitors chiller operation, displays key operational status and readings, and supports operator programming for job specifications including automatic timed start-ups and shutdowns.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What safety warning is included before servicing?",{"text":117,"@type":113},"The system contains refrigerant under pressure, and serious injury could result if proper procedures are not followed; all service work must be performed by a qualified service technician.",{"name":119,"@type":110,"acceptedAnswer":120},"What maintenance areas does the document cover?",{"text":121,"@type":113},"It includes operational maintenance and preventive maintenance topics such as oil return and oil charging, troubleshooting, renewal parts, refrigerant circuit service, motor megger testing, and checks for electrical controls and condensers/coolers.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},641310,1792876414,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},962090894170,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","| | MILLENNIUM CHQWULIXJDO /LTXLG &KLOOHUV |  |  |\n| --- | --- | --- | --- |\n| OSHUDWLQJDQG MDLQWHQDQFH | Supersedes: 1􀀙0 .48-21 􀀋424􀀌 | 425 | FORM 160.48-O1 |\n\nMRGHOYT G0 A1 B1 thrRXJKYT L6 D8 F2 (SW\\OH H)  \nHCFC-123 (cooling only)  \nWLWK MLFURFRPSXWHU CRQWURO CHQWHUV PDUW \\#371-01200-002, \\#371-01200-007 􀀏 DQG 371-01200-014 FRU EOHFWURPHFKDQLFDO SWDUWHU, SROLG SWDWH SWDUWHU􀀏 DQG 9DULDEOH 6SHHG 'ULYH  \n26874A  \nWARNING  \nSYSTEM CONTAINS REFRIGERANT UNDER PRESSURE.  \nSERIOUS INJURY COULD RESULT IF PROPER PROCEDURES ARE NOT FOLLOWED WHEN SERVICING SYSTEM. ALL SERVICEWORKSHALL BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN IN ACCORDANCE WITH YORK INSTALLATION/OPERATION MANUAL.  \n􀂋 2􀀓25-RKQVRQ &RQWUROV􀀑 $OO ULJKWV UHVHUYHG􀀑  \nTABLE OF CONTENTS  \nSection 1: Description of System and Operational Fundamentals .......................... 4  \nSection 2: MicroComputer Control Center ................................................................. 6  \nIntroduction ................................................................................................... 6  \nControl Center .............................................................................................. 7  \nOperation ...................................................................................................... 8  \nProgramming the MicroComputer Control Center ...................................... 13  \nService Keys .............................................................................................. 18  \nOperating Modes ........................................................................................ 20  \nCompressor Switch .................................................................................... 21  \nDisplay Messages ...................................................................................... 21  \nSection 3: System Operating Procedures ................................................................ 28  \nSection 4: System Components Description-Compressor/Motor Assembly ...... 35  \nSection 5: Operational Maintenance ......................................................................... 39  \nUse of Pump Assisted Turboguard Purge Unit ........................................... 39  \nOil Return System ...................................................................................... 42  \nCharging the Unit With Oil .......................................................................... 44  \nSection 6: Trouble Shooting ...................................................................................... 46  \nSection 7: Maintenance .............................................................................................. 52  \nRenewal Parts ............................................................................................ 52  \nRefrigerant Circuit Service.......................................................................... 52  \nMegging the Motor ...................................................................................... 52  \nCondensers and Coolers ............................................................................ 53  \nCompressor ................................................................................................ 55  \nElectrical Controls ...................................................................................... 55  \nSection 8: Preventive Maintenance ........................................................................... 56  \nNOTE: This instruction covers operation of chillers equipped with Electro-Mechanical or Solid State Starters. If chiller is equipped withVariable Speed Drive, Form 160. 00-O1 isto be used in conjunction with this manual.  \nREFERENCE LITERATURE  \n\n| DESCRIPTION | FORM NO |\n| --- | --- |\n| INSTALLATION\u003Cbr>OPERATION – VARIABLE SPEED DRIVE RENEWAL PARTS – UNIT\u003Cbr>RENEWAL PARTS – CONTROL PANEL RENEWAL PARTS – B & C COMPRESSOR RENEWAL PARTS – E COMPRESSORS\u003Cbr>RENEWAL PARTS – F COMPRESSORS\u003Cbr>RENEWAL PARTS – C3 COMPRESSORS WIRING (WITH EM S","cbCaic19s0DoTtKZ","https://ap.wps.com/l/cbCaic19s0DoTtKZ","pdf",1692445,58,"English","# Section 1: Description of System and Operational Fundamentals\n# Section 2: MicroComputer Control Center\n## Introduction\n## Control Center\n## Operation\n## Programming the MicroComputer Control Center\n## Service Keys\n## Operating Modes\n## Compressor Switch\n## Display Messages\n# Section 3: System Operating Procedures\n# Section 4: System Components Description-Compressor/Motor Assembly\n# Section 5: Operational Maintenance\n## Use of Pump Assisted Turboguard Purge Unit\n## Oil Return System\n## Charging the Unit With Oil\n# Section 6: Trouble Shooting\n# Section 7: Maintenance\n## Renewal Parts\n## Refrigerant Circuit Service\n## Megging the Motor\n## Condensers and Coolers\n## Compressor\n## Electrical Controls\n# Section 8: Preventive Maintenance\n## Note: Instruction scope and related forms","[{\"question\":\"What does the MicroComputer Control Center manage for the chiller?\",\"answer\":\"It monitors chiller operation, displays key operational status and readings, and supports operator programming for job specifications including automatic timed start-ups and shutdowns.\"},{\"question\":\"What safety warning is included before servicing?\",\"answer\":\"The system contains refrigerant under pressure, and serious injury could result if proper procedures are not followed; all service work must be performed by a qualified service technician.\"},{\"question\":\"What maintenance areas does the document cover?\",\"answer\":\"It includes operational maintenance and preventive maintenance topics such as oil return and oil charging, troubleshooting, renewal parts, refrigerant circuit service, motor megger testing, and checks for electrical controls and condensers/coolers.\"}]","FORM 160.48-O1 - System Operation and Maintenance Manual | PDF",1792713509,146]