[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-668999-105":59,"doc-detail-668999-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","mechanical-symbols-and-abbreviations-symbols","MECHANICAL SYMBOLS AND ABBREVIATIONS SYMBOLS","","Mechanical symbols and abbreviations glossary defining sheet, plan, elevation, section, detail, and room naming conventions for HVAC/MEP drawings. Includes guidance for equipment schedules, continuation references, construction bulletins, revision and keynote references, and drawing symbols for ductwork, piping connections, fittings, dampers, fire/smoke ratings, and diffuser/grille notation. Provides air/water temperature and flow/size abbreviations plus common term definitions and failure-position damper codes.",{"@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":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/mechanical-symbols-and-abbreviations-symbols/668999/",{"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/mechanical-symbols-and-abbreviations-symbols/668999.png","ImageObject",300,407,{"name":92,"@type":93},"Bintang","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-04","2026-11-01",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What do the top and bottom indicators mean for equipment designations and sections?","Question",{"text":112,"@type":113},"The document states that the top indicates the equipment abbreviation, and the bottom indicates the equipment number. For sections, the top indicates the section number and the bottom indicates which sheet the section appears on.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How are continuation references and line types described?",{"text":117,"@type":113},"It includes plan continuation references and notes what determines where continuation appears. It also defines line indicators such as halftone light lines for existing work and heavy dashed lines with hatch for existing work to be demolished.",{"name":119,"@type":110,"acceptedAnswer":120},"What abbreviations and notation are provided for HVAC air and duct/diffuser identification?",{"text":121,"@type":113},"The glossary defines air and equipment-related abbreviations (e.g., constant air volume and air temperature terms) and explains diffuser/grille notation such as neck size in inches and airflow quantity in CFM, along with diffuser air pattern arrows.","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},668999,1793522684,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"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":129,"read_time":144},962085564381,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","| DATE: 1 1/30/2020 7 : 05 : 20 AM\u003Cbr>FILE: C:\\Users\\caugustyn\\Documents\\Revit 2020 Local Copy\\AEI_JJC_MEP_R20_caugustyn . rvt | E\u003Cbr>D C B\u003Cbr>A\u003Cbr>1 2 3\u003Cbr>4 5 6 MECHANICAL SYMBOLS AND ABBREVIATIONS SYMBOLS INDICATED HERE AND NOT USED IN THE CONTRACT DOCUMENTS DO NOT APPLY TO THIS PROJECT. ADDITIONAL SYMBOLS MAY BE INDICATED IN THE CONTRACT DOCUMENTS. SHEET SYMBOLS DUCTWORK SPECIALTIES DUCTWORK PIPING ABBREVIATIONS-GENERAL \u003Cbr>SCHEDULED EQUIPMENT DESIGNATION.\u003Cbr>-TOP INDICATES EQUIPMENT  ABBREVIATION \u003Cbr>-BOTTOM INDICATES EQUIPMENT NUMBER\u003Cbr>REFER TO EQUIPMENT SCHEDULES SPECIALTY ITEMS\u003Cbr>(I. E. GAUGE FILTER, ETC.)\u003Cbr>REFER TO EQUIPMENT LIST\u003Cbr>\u003Cbr>PLAN CONTINUATION REFERENCE.\u003Cbr>-BOTTOM INDICATES ON WHICH SHEET CONTINUATION APPEARS\u003Cbr>\u003Cbr>\u003Cbr>ELEVATION DESIGNATION. REFERENCE OFFICIAL PROJECT DATUM\u003Cbr>\u003Cbr>REVISION REFERENCE.\u003Cbr>\u003Cbr>REFER TO SHEET REVISION\u003Cbr>\u003Cbr>BLOCK\u003Cbr>\u003Cbr>SHEET KEYNOTE REFERENCE\u003Cbr>\u003Cbr>ROOM NAME\u003Cbr>101\u003Cbr>ROOM NAME & NUMBER\u003Cbr>\u003Cbr>DESIGNATION\u003Cbr>\u003Cbr>1001\u003Cbr>\u003Cbr>CONSTRUCTION BULLETIN\u003Cbr>\u003Cbr>REVISION NUMBER SINGLE  DOUBLE\u003Cbr>RECTANGULAR/ROUND BRANCH TAKE-OFF\u003Cbr>\u003Cbr>OR\u003Cbr>ROUND/ROUND BRANCH TAKE-OFF\u003Cbr>\u003Cbr>45° LATERAL BRANCH\u003Cbr>\u003Cbr>DOUBLE-LINE\u003Cbr>\u003Cbr>ELBOW DOWN\u003Cbr>\u003Cbr>ELBOW UP\u003Cbr>\u003Cbr>BOTTOM CONNECTION\u003Cbr>(45° OR 90°)\u003Cbr>\u003Cbr>TOPCONNECTION\u003Cbr>(45° OR 90°)\u003Cbr>45° PIPE RISE(R) / DROP(D) ADJAFFALALTAP AVG\u003Cbr>BE BHP BOD BOP BTU BTUH\u003Cbr>BWE\u003Cbr>CA CAP - ADJUSTABLE\u003Cbr>- ABOVE FINISHED FLOOR\u003Cbr>- ALUMINUM\u003Cbr>- ALTERNATE\u003Cbr>- ACCESS PANEL\u003Cbr>- AVERAGE\u003Cbr>- BATTERY EXHAUST\u003Cbr>- BRAKE HORSEPOWER\u003Cbr>- BOTTOM OF DUCT\u003Cbr>- BOTTOM OF PIPE\u003Cbr>- BRITISH THERMAL UNIT\u003Cbr>- BRITISH THERMAL UNITS PER HOUR\u003Cbr>- BAKED WHITE ENAMEL\u003Cbr>- COMBUSTION AIR\u003Cbr>- CAPACITY\u003Cbr>L - LENGTH\u003Cbr>LAT - LEAVING AIR TEMPERATURE\u003Cbr>LB - POUND\u003Cbr>LBS - POUNDS\u003Cbr>LEA - LABORATORY EXHAUST AIR\u003Cbr>LP - LOW POINT\u003Cbr>LSA - LABORATORY SUPPLY AIR\u003Cbr>LWT - LEAVING WATER TEMPERATURE\u003Cbr>MAX - MAXIMUM\u003Cbr>MBH - THOUSANDS OF BTU PER HOUR\u003Cbr>MC - MECHANICAL CONTRACTOR\u003Cbr>MEP - MECHANICAL, ELECTRICAL,\u003Cbr>AND PIPING\u003Cbr>MER - MECHANICAL EQUIPMENT ROOM\u003Cbr>MIN - MINIMUM\u003Cbr>NA - NOT APPLICABLE 2\u003Cbr>M-1\u003Cbr>\u003Cbr>SECTION DESIGNATION.\u003Cbr>\u003Cbr>-TOP INDICATES SECTION NUMBER,-BOTTOM INDICATES ON WHICH SHEET SECTION APPEARS\u003Cbr>\u003Cbr>DETAIL REFERENCE.\u003Cbr>\u003Cbr>-TOP INDICATES SECTION NUMBER,-BOTTOM INDICATES ON WHICH\u003Cbr>\u003Cbr>SHEET SECTION APPEARS\u003Cbr>\u003Cbr>\u003Cbr>POINT OF NEW\u003Cbr>\u003Cbr>CONNECTION TO EXISTING\u003Cbr>\u003Cbr>HALFTONE LIGHT LINE\u003Cbr>INDICATES EXISTING WORK\u003Cbr>\u003Cbr>HEAVY DASHED LINE WITH\u003Cbr>HATCH INDICATES EXISTING WORK TO BE DEMOLISHED VENTURI VALVE WITH CONTROLLER LOCATED ON SIDE OF VALVE\u003Cbr>\u003Cbr>OR\u003Cbr>\u003Cbr>VENTURI VALVE WITH\u003Cbr>CONTROLLER ANGLED DOWN,\u003Cbr>\u003Cbr>SEE DETAIL \u003Cbr>SQUARE TEE (FOR LOW\u003Cbr>PRESSURE SA DIVERGING ONLY)\u003Cbr>\u003Cbr>BULLHEAD TEE (FOR LOW\u003Cbr>PRESSURE SA DUCTWORK ONLY) \u003Cbr>TEE (REFER TO\u003Cbr>\u003Cbr>SPECIFICATION FOR SIDE, TOP OR BOTTOM TEE)\u003Cbr>\u003Cbr>\u003Cbr>\u003Cbr>EXISTING PIPING TO REMAIN\u003Cbr>\u003Cbr>EXISTING PIPING TO BE REMOVED CAV CECFCI\u003Cbr>CFHCFM CLCLG COND - CONSTANT AIR VOLUME\u003Cbr>- CAGEWSH EXHAUST\u003Cbr>- CONTRACTOR FURNISHED, CONTRACTOR INSTALLED\u003Cbr>- CUBIC FEET PER HOUR\u003Cbr>- CUBIC FEET PER MINUTE\u003Cbr>- CENTERLINE\u003Cbr>- CEILING\u003Cbr>- CONDENSATE / CONDENSER\u003Cbr>NC - NORMALLY CLOSED\u003Cbr>NIC - NOT IN CONTRACT\u003Cbr>NO - NORMALLY OPEN\u003Cbr>NOM - NOMINAL\u003Cbr>NPS - NOMINAL PIPE SIZE\u003Cbr>NPT - NATIONAL PIPE THREAD\u003Cbr>NTS - NOT TO SCALE\u003Cbr>OA - OUTSIDE AIR\u003Cbr>OC - ON CENTER A/15B-6\u003Cbr>\u003Cbr>DETAIL REFERENCE.\u003Cbr>\u003Cbr>-TOP INDICATES SECTION NUMBER,-BOTTOM INDICATES ON WHICH\u003Cbr>\u003Cbr>SHEET SECTION APPEARS\u003Cbr>\u003Cbr>HEAVY LINE INDICATES\u003Cbr>\u003Cbr>NEW WORK\u003Cbr>\u003Cbr>MATCHLINE DESIGNATION\u003Cbr>\u003Cbr>FIELD MOUNTED CONTROLS\u003Cbr>\u003Cbr>COMMON INSTRUMENTATION DEVICES\u003Cbr>SINGLE LINE-HARD OR FLEXIBLE CONNECTION\u003Cbr>\u003Cbr>\u003Cbr>DUCTWORK AT DIFFUSERS & GRILLES\u003Cbr>\u003Cbr>DOUBLE LINE-HARD OR FLEXIBLE CONNECTION\u003Cbr>\u003Cbr>\u003Cbr>SUPPLY DIFFUSER OR GRILLE (HORIZONTAL MOUNT)\u003Cbr>\u003Cbr>ROUND DIFFUSER\u003Cbr>\u003Cbr>RETURN REGISTER OR\u003Cbr>GRILLE (HORIZONTAL MOUNT)\u003Cbr>\u003Cbr>EXHAUST REGISTER OR GRILLE\u003Cbr>(HORIZONTAL MOUNT)\u003Cbr>\u003Cbr>EXHAUST OR RETURN REGISTER OR GRILLE (VERTICAL MOUNT)\u003Cbr>SU","cbCaipdHWUAE8rOn","https://ap.wps.com/l/cbCaipdHWUAE8rOn","pdf",10761825,34,"English","# Mechanical symbols and abbreviations\n## Drawing designation references\n## Ductwork, piping connections, and specialties\n## Abbreviations glossary","[{\"question\":\"What do the top and bottom indicators mean for equipment designations and sections?\",\"answer\":\"The document states that the top indicates the equipment abbreviation, and the bottom indicates the equipment number. For sections, the top indicates the section number and the bottom indicates which sheet the section appears on.\"},{\"question\":\"How are continuation references and line types described?\",\"answer\":\"It includes plan continuation references and notes what determines where continuation appears. It also defines line indicators such as halftone light lines for existing work and heavy dashed lines with hatch for existing work to be demolished.\"},{\"question\":\"What abbreviations and notation are provided for HVAC air and duct/diffuser identification?\",\"answer\":\"The glossary defines air and equipment-related abbreviations (e.g., constant air volume and air temperature terms) and explains diffuser/grille notation such as neck size in inches and airflow quantity in CFM, along with diffuser air pattern arrows.\"}]","MECHANICAL SYMBOLS AND ABBREVIATIONS SYMBOLS | PDF",86]