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The material enumerates case, cover, main and terminal PCBs, front panel, air duct assemblies, filters, brackets, power transformer, heating adapters, handles, and air pressure sensors. 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caps.","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},657610,1793065294,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":34,"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},962090768658,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","12.6 Component Assembly Diagrams and Part Lists  \n12.6.1 Case Assembly-NFB-301C  \n120 Appendixes  \n\n| \\# | Description | Part \\# | Remark |\n| --- | --- | --- | --- |\n| 1 | Case Upper | 20042573A |  |\n|  | (SET) Case Upper | 30023701A | NFB-301C SERVICE KIT |\n|  | Case Middle | 20042572A |  |\n|  | Case Lower | 20042571A |  |\n|  | (SET) Case Lower | 30023702A | NFB-301C SERVICE KIT |\n| 2 | Cover | 30020590A |  |\n|  | (SET)Cover | 30023383A | NFB-301C SERVICE KIT |\n| 3-1 | Main PCB | 30020431A |  |\n| 3-2 | Terminal PCB | 30020433A |  |\n| 4 | Front Panel | 30019786A |  |\n| 5 | Exhaust Duct Assembly | 30020520A |  |\n| 6 | Intake Air Duct Assembly | 30020519A |  |\n| 7-1 | Air Filter Case | 20046047A |  |\n| 7-2 | Air Filter | 20046201A |  |\n| 8 | PCB Lower Bracket | 20040181A |  |\n| 9 | Rubber Ring | 20041970A |  |\n| 10 | 24 V Power Transformer | 30019688A |  |\n| 11 | Heating Supply Adapter (Air Vent Adapter) | 20043650A |  |\n| 12 | Base Packing | 20042901A |  |\n| 13 | Drain Pan Adapter Lower Bracket | 20043583A |  |\n| 14 | Handle | 20044467A |  |\n| 15 | Air Pressure Sensor | 30013265A |  |\n\nAppendixes 121  \n12.6.2 Case Assembly-NFB-399C  \n122 Appendixes  \n\n| \\# | Description | Part \\# | Remark |\n| --- | --- | --- | --- |\n| 1 | Case Upper | 20042659A |  |\n|  | (SET) Case Upper | 30023699A | NFB-399C SERVICE KIT |\n|  | Case Middle | 20042521A |  |\n|  | Case Lower | 20042517A |  |\n|  | (SET) Case Lower | 30023700A | NFB-399C SERVICE KIT |\n| 2 | Cover | 30020590A |  |\n|  | (SET)Cover | 30023383A | NFB-399C SERVICE KIT |\n| 3-1 | Main PCB | 30020431A |  |\n| 3-2 | Terminal PCB | 30020433A |  |\n| 4 | Front Panel | 30019786A |  |\n| 5 | Exhaust Duct Assembly | 30020520A |  |\n| 6 | Intake Air Duct Assembly | 30020519A |  |\n| 7-1 | Air Filter Case | 20046047A |  |\n| 7-2 | Air Filter | 20046201A |  |\n| 8 | PCB Lower Bracket | 20040181A |  |\n| 9 | Rubber Ring | 20041970A |  |\n| 10 | 24 V Power Transformer | 30019688A |  |\n| 11 | Heating Supply Adapter (Air Vent Adapter) | 20043267A |  |\n| 12 | Base Packing | 20042901A |  |\n| 13 | Drain Pan Adapter Lower Bracket | 20043583A |  |\n| 14 | Handle | 20044467A |  |\n| 15 | Air Pressure Sensor | 30013265A |  |\n\nAppendixes 123  \n12.6.3 Heat Exchanger and Waterway Assembly-NFB-301C  \n124 Appendixes  \n\n| \\# | Description | Part \\# | Remark |\n| --- | --- | --- | --- |\n| 1 | Heat Exchanger Assembly | 30021565A |  |\n|  | (SET) Heat Exchanger Assembly | 30023358A | NFB-301C SERVICE KIT |\n| 2 | Drain Pan Assembly | 30020747A |  |\n| 3 | Supply Pipe (Upper) | 30020985A |  |\n| 4 | Packing | 20041401A |  |\n| 5 | Heat Exchanger Outlet Adapter | 30021367A |  |\n| 6 | Supply Pipe (Lower) | 30020986A |  |\n| 7 | Fastener | 20040255A |  |\n| 8 | Supply/Return Pipe (Lower) Adapter | 20040244A |  |\n| 9 | LWCO (Pressure sensor) | 30022672A |  |\n| 10 | LWCO (Pressure sensor) Packing | 20006873A |  |\n| 11 | Heat Exchanger Inlet Adapter | 30020587A |  |\n| 12 | Return Pipe (Lower) | 30022921A |  |\n| 13 | Thermistor | 30012907A |  |\n| 14 | Return Pipe (Upper) | 30022922A |  |\n| 15 | Drain Pan Packing | 20040241A |  |\n| 16 | Exhaust Duct (Lower) | 20040242A |  |\n| 17 | Exhaust Duct Clip | 20042741A |  |\n| 18 | Exhaust Duct Packing (G90) | 20022326A |  |\n| 19 | Exhaust Duct Packing (P85) | 20042823A |  |\n| 20 | Exhaust Duct (Upper) | 20042575A |  |\n| 21 | Exhaust Duct Cap | 20029712A |  |\n| 22 | Exhaust Duct Packing (Upper) | 20043021A |  |\n| 23 | Thermistor (Exhaust) | 30020489A |  |\n| 24 | Heat Exchanger Drain Cap | 20042237A |  |\n| 25 | High Limit Switch | 30002558A |  |\n| 26 | O-ring (V32) | 20041403A |  |\n| 27 | O-ring (P34) | 20042298A |  |\n| 28 | Drain Pan Adapter | 20043016A |  |\n| 29 | Drain Pan Adapter Packing | 20043017A |  |\n| 30 | Screw (M4X10L) | 20038753A |  |\n| 31 | Screw (M4X20L) | 20042814A |  |\n| 32 | Bolt (M4X10L) | 20038757A |  |\n\nAppendixes 125  \n12.6.4 Heat Exchanger and Waterway Assembly-NFB-399C  \n126 Appendixes  \n\n| \\# | Description | Part \\# | Remark |\n| --- | --- | --- | --- |\n| 1 | Heat Exchanger Assembly ","cbCaitorXppTYagD","https://ap.wps.com/l/cbCaitorXppTYagD","pdf",1037932,14,"English","# 12.6 Component Assembly Diagrams and Part Lists\n## 12.6.1 Case Assembly - NFB-301C\n## 12.6.2 Case Assembly - NFB-399C\n## 12.6.3 Heat Exchanger and Waterway Assembly - NFB-301C\n## 12.6.4 Heat Exchanger and Waterway Assembly - NFB-399C\n## 12.6.5 Combustion Parts Assembly - NFB-301C","[{\"question\":\"What assemblies are covered in the component assembly diagrams?\",\"answer\":\"The document covers case assemblies, heat exchanger and waterway assemblies, and combustion parts assemblies for NFB-301C and NFB-399C.\"},{\"question\":\"How is part information organized in the tables?\",\"answer\":\"Each table lists an item number, a description, a part number, and a remark field that often indicates service kit compatibility.\"},{\"question\":\"What types of components are included in the heat exchanger and waterway assembly sections?\",\"answer\":\"They include a heat exchanger assembly, drain pan components, supply and return pipes and adapters, thermistors, LWCO pressure sensor parts, switches, exhaust ducts, O-rings, fasteners, and related packing and caps.\"}]","Component Assembly Diagrams and Part Lists - 12.6 Appendixes | PDF",1792984943,35]