[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-662366-105":59,"doc-detail-662366-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","systems-design-manual-non-condensing-tankless-two-unit-circ-logic","Systems Design Manual - Non-Condensing Tankless - Two Unit Circ Logic","","Systems Design Manual - Non-Condensing Tankless - Two Unit Circ Logic provides proprietary, confidential guidance for configuring and sizing components in a Rinnai Hot Water circulation loop. The manual specifies pump sizing requirements to maintain circulation temperature and overcome pressure loss across the tankless water heater, supply, and return plumbing, and references the Rinnai Circ-Logic guide and Hot Water System Design Manual. Construction material guidance, controller connection constraints, and installation responsibilities are included, along with stated tolerances and drafting conventions.",{"@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/systems-design-manual-non-condensing-tankless-two-unit-circ-logic/662366/",{"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/systems-design-manual-non-condensing-tankless-two-unit-circ-logic/662366.png","ImageObject",300,407,{"name":92,"@type":93},"dhado","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-28",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},"How should the pump be sized for the circulation loop?","Question",{"text":112,"@type":113},"The pump should be sized to maintain the circulation loop temperature and to overcome pressure loss through the tankless water heater, supply, and return plumbing.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What guidance is referenced for pump sizing?",{"text":117,"@type":113},"Reference the Rinnai Circ-Logic Guide and the Rinnai Hot Water System Design Manual for pump sizing guidelines.",{"name":119,"@type":110,"acceptedAnswer":120},"What materials are recommended for the pump?",{"text":121,"@type":113},"The pump should be made of bronze or stainless construction.","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},662366,1793213104,{"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":8,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":81},5909893218464,"https://ap-avatar.wpscdn.com/davatar_085a072bc5b1113ac321206ff7593b45","8  \n7  \n6  \n5  \n4  \n2  \n1  \n3  \n\n| Applies to HE+Models  \u003Cbr>Note:  \u003Cbr>Reference Rinnai Circ-Logic Guide for Rinnai Circ-  \u003Cbr>Logic description and installation instructions  \u003Cbr>Pump should be sized to maintain circulation loop  \u003Cbr>temperature.  \u003Cbr>Pump should be sized to overcome the pressure  \u003Cbr>loss through the tankless water heater,supply,and  \u003Cbr>return plumbing.Reference the Rinnai Hot Water  \u003Cbr>System Design Manualfor pump sizing guidelines.  \u003Cbr>Pump should be of bronze or stainless construction.  \u003Cbr>PVA to remain at factory default setting.Circulation  \u003Cbr>unit should not be connected electronically to MSB  \u003Cbr>Connection  \u003Cbr>Rinna circ Logic  \u003Cbr>Controller or EZ Connect Cord  \u003Cbr>Gas Supply  \u003Cbr>PVA  \u003Cbr>六  \u003Cbr>Cold Water Supply  \u003Cbr>3/4\"Return Line Minimum  \u003Cbr>Hot Water Supply  \u003Cbr>Recommended  \u003Cbr>Building Outlets   |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- |\n|  | THIRDANGLEPROJECTION  \u003Cbr>RINNAI AMERICA CORPORATION  \u003Cbr>103 INTERNATIONAL DRIVE  \u003Cbr>PEACHTREE CITY,GA 30269  \u003Cbr>1-800-621-9419  \u003Cbr>PROPRIETARY AND CONFIDENTIAL  \u003Cbr>THE INFORMATION CONTAINED IN  \u003Cbr>THIS DRAWING IS THE SOLE  \u003Cbr>REPPOBUCTIERNINNAIRAMRIAS.ANY  \u003Cbr>WHOLE WITHOUT THE WRITTEN  \u003Cbr>PERMISSIONOF RINNAI AMERICA IS  \u003Cbr>PROHIBITED.   | LAST REVISION COMMENTS  \u003Cbr>UNLESS OTHERWISE SPECIFIED  \u003Cbr>TOLERANCES:  \u003Cbr>This is not an engineering drawing;it is intended only as a guide and not  \u003Cbr>Sheet Metal XXX=±0.030  \u003Cbr>as a replacement for professional engineering project drawings.This  \u003Cbr>XXXX=±0.010  \u003Cbr>Fraction=±1/32  \u003Cbr>drawing is not intended to describe a complete system.It is up to the  \u003Cbr>Angle=±1.0°  \u003Cbr>contractor or engineer to determine the necessary components and  \u003Cbr>MACHINEDX.XXX=±0.005  \u003Cbr>Angle=±0.010°  \u003Cbr>configuration of the particular system to be installed.The drawing does  \u003Cbr>INTERPRET GEOMETRIC  \u003Cbr>not imply compliance with local building code requirements.It is the  \u003Cbr>TOLERANCING PER:  \u003Cbr>responsibility of the engineer or contractor to ensure that the installation is  \u003Cbr>MATERIAL  \u003Cbr>in accordance with all local building codes.Confer with local building  \u003Cbr>officials before installation.  \u003Cbr>FINISH  \u003Cbr>DO NOT SCALE DRAWING   | DATE  \u003Cbr>NAME  \u003Cbr>11.16.2018  \u003Cbr>DRAWN  \u003Cbr>AB  \u003Cbr>CHECKED  \u003Cbr>ENG APPR.  \u003Cbr>MFG APPR.  \u003Cbr>Q.A.  \u003Cbr>COMMENTS:   | TITLE:  \u003Cbr>Systems Design Manual  \u003Cbr>Non-Condensing Tankless  \u003Cbr>Two Unit Circ Logic   |  |\n|  |  |  |  | SIZE DWG.NO.  \u003Cbr>WH-2-CL  \u003Cbr>B  \u003Cbr>SCALE:NTS WEIGHT:     SHEE   | REV  \u003Cbr>T 1 OF1   |\n\nD  \nD  \nC  \nC  \nB  \nB  \nA  \nA  \n6  \n8  \n7  \n2  \n6  \n4  \n3  \n1","cbCaijXZRvhYmuIc","https://ap.wps.com/l/cbCaijXZRvhYmuIc","pdf",738170,"English","# Systems Design Manual - Non-Condensing Tankless - Two Unit Circ Logic\n## Circulation loop and pump sizing requirements\n## Installation notes, controller connection constraints, and references","[{\"question\":\"How should the pump be sized for the circulation loop?\",\"answer\":\"The pump should be sized to maintain the circulation loop temperature and to overcome pressure loss through the tankless water heater, supply, and return plumbing.\"},{\"question\":\"What guidance is referenced for pump sizing?\",\"answer\":\"Reference the Rinnai Circ-Logic Guide and the Rinnai Hot Water System Design Manual for pump sizing guidelines.\"},{\"question\":\"What materials are recommended for the pump?\",\"answer\":\"The pump should be made of bronze or stainless construction.\"}]","Systems Design Manual - Non-Condensing Tankless - Two Unit Circ Logic | PDF"]