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Provides technician-oriented guidance on important safety information, hazards, model/serial identification, and system specifications including room-size limits, indoor and outdoor clearances, and dimensional data for supported 115V and 230V models. Covers indoor unit installation steps, electrical wiring, leak check, evacuation and charging, startup and operation, detailed operational functions, maintenance procedures, and troubleshooting with diagnostic codes, protection circuit fault isolation, compressor and component fault guidance. Also includes sealed system repair and wiring diagrams, plus appendices such as parts viewer and 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is this service manual intended for?","Question",{"text":112,"@type":113},"The manual is intended for use by a qualified technician familiar with required safety procedures and equipped with proper tools and test instruments for servicing the product.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What are the key safety risks highlighted in the manual?",{"text":117,"@type":113},"It warns that installation or repairs by unqualified persons can lead to serious or fatal injury and hazards such as electrical shock, and it emphasizes reading and obeying safety messages throughout.",{"name":119,"@type":110,"acceptedAnswer":120},"Which systems and models does the manual cover?",{"text":121,"@type":113},"It covers the ductless Floating Air single-zone system using R-454B refrigerant, including specified 115V and 230V wall mounted indoor and outdoor units listed by model numbers in the table of contents.","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},641549,1792720173,{"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":19,"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},962094249103,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","1  \nService Manual  \nDuctless  \nFloating Air ® Single Zone R-454B Refrigerant  \nSystem  \n115Volt: FPHW091C, FPHW121C  \n230-Volt: FPHW093D, FPHW123D, FPHW183D, FPHW243D  \nWall Mounted Unit  \nOutdoor Unit  \n115Volt: FAHFW09A1C, FAHFW121C  \n230-Volt: FAHFW09A3D, FAHFW12A3D, FAHFW18A3D, FAHFW24A3D  \n115Volt: FPHSR09A1C, FPHSR12A1C  \n230-Volt: FPHSR09A3D, FPHSR12A3D, FPHSR18A3D, FPHSR24A3D  \n96112001_00  \nTABLE OF CONTENTS  \nINTRODUCTION 4  \nImportant Safety Information 4  \nPersonal Injury Or Death Hazards 5  \nModel And Serial Number Location 8  \nModel Identification Guide 9  \nSerial Number Reference Guide 9  \nSPECIFICATIONS 10  \n9-12K BTU 115v (System C Models) 10  \n9-24k (230v) (System D Models) 13  \nRoom Size Restriction 16  \nIndoor Unit Clearances 17  \nOutdoor Unit Clearances 17  \nDimensions Indoor Unit 18  \nFAHSW09A1C, FAHSW12A1C, FAHFW09A3D, FAHFW12A3D 18  \nFAHFW18A3D, FAHFW24A3D 19  \nDimensions Outdoor Unit 20  \nFPHSR09A1C, FPHSR12A1C, FPHSR09A3D, FPHSR12A3D 20  \nFPHSR18A3D 21  \nFPHSR24A3D 22  \nINSTALLATION OF THE INDOOR UNIT 23  \nPre-Installation Checkpoints 23  \nInstall Mounting Plate 24  \nDrill Hole for Piping 25  \nPiping Provisions 26  \nIndoor Unit Installation 27  \nElectrical 31  \nIndoor Unit Wiring Connection Diagram 32  \nTools 33  \nClearances 34  \nPre-Installation Checkpoints 35  \nInstall Condensate Drain 36  \nSpecifications 37  \nWiring Diagrams 38  \nLeak Check, Evacuation and Charging 39  \nStartup And Operation 41  \nOPERATION 42  \nOperation Range (Cooling and Heating) 42  \nRemote Control 43  \nUnit Function 52  \nSpecial Function Instruction 55  \nMAINTENANCE 66  \nTROUBLESHOOTING 69  \nOutdoor Unit 69  \nDiagnostic Codes _ Unit Not Running 69  \nIndoor Unit 72  \nDiagnostic Codes 72  \nProtection Circuit Fault Isolation 75  \nCompressor Fault Isolation 76  \nUnit Does Not Run 77  \nError Code 39-DC Fan 78  \nError Code 9 79  \nError Code 13 80  \nError Code 8 80  \nError Code 16 81  \nError Code 11 EEPROM Fault 81  \nError Code 20 82  \nError Code 33 83  \nError Code 34 83  \nError Code 14 83  \nError Code 1 83  \nError Code 2 83  \nError Code 6 83  \nError Code 19 84  \nError Code 36 (or 7) 86  \nBlank Display/ Indoor Micro Switch 89  \nTABLE OF CONTENTS  \nCOMPONENTS TESTING 91  \nRefrigerant Flow 91  \nEEV Stepper Coil 93  \nIndoor Fan Motor 94  \nOutdoor Fan Motor 95  \nReversing Valve 96  \nChecking the Reversing Valve 96  \nChecking The Reversing Valve Solenoid 96  \n115v Indoor Unit Main PCB 97  \nFPHSR09A1C, FPHSR12A1C 97  \n230v Indoor Unit Main PCB Terminal ID (No A2L Sensor Capability) 98  \nFPHFR09A3B, FPHFR12A3B, FPHFR18A3B, FPHFR24A3B 98  \n230v Indoor Unit Main PCB Terminal ID (With A2L Sensor Capability) 99  \nFPHFR09A3B, FPHFR12A3B, FPHFR18A3B, FPHFR24A3B 99  \n115 Outdoor Unit-Main PCB ID 100  \nFPHSR09A1C, FPHSR12A1C 100  \n230v Outdoor Unit-Main PCB ID 101  \nFPHSR09A3D, FPHSR12A3D, FPHSR18A3D, FPHSR24A3D 101  \nR-454B SEALED SYSTEM REPAIR 102  \nGeneral Information 102  \nRequired Equipment 104  \nRefrigerant Removal, Recovery, and Evacuation 105  \nComponent Replacement/Brazing 106  \nRefrigerant Charging 107  \nTriple Evacuation 108  \nCompressor Replacement 109  \nReplace The Reversing Valve 110  \nWIRING DIAGRAMS 111  \n115v Indoor Unit 111  \nFAHSW091AC, FAHSW12A1C 111  \n230v Indoor Unit with A2L Sensor Capability 112  \nFAHFW09A3A, FAHFW12A3A, FAHFW18A3A, FAHFW24A3A 112  \n230v Indoor Unit with A2L Sensor Capability 113  \nFAHFW09A3A, FAHFW12A3A, FAHFW18A3A, FAHFW24A3A 113  \n115v Outdoor Unit 114  \nFPHSR09A1C, FPHSR12A1C 114  \nFPHSR09A3D, FPHSR12A3D, FPHSR18A3D, FPHSR24A3D 115  \nAPPENDIX 116  \nInteractive Parts Viewer 116  \nLimited Warranty 116  \nThermistor Resistance Values 117  \nFriedrich Authorized Parts Depots 121  \nINTRODUCTION  \nImportant Safety Information  \nThe information in this manual is intended for use by a qualified technician who is familiar with the safety procedures required for installation and repair, and whois equipped with the proper tools and test instruments required to service this product.  \nInstallation or repairs made by u","cbCaih86hSIDm0iE","https://ap.wps.com/l/cbCaih86hSIDm0iE","pdf",37039071,117,"English","# INTRODUCTION\n## Important Safety Information\n## Model And Serial Number Location\n# SPECIFICATIONS\n## Room Size Restriction\n## Indoor Unit Clearances\n## Outdoor Unit Clearances\n# INSTALLATION OF THE INDOOR UNIT\n## Pre-Installation Checkpoints\n## Electrical\n## Leak Check, Evacuation and Charging\n# OPERATION\n## Remote Control\n## Unit Function\n## Special Function Instruction\n# MAINTENANCE\n# TROUBLESHOOTING\n## Diagnostic Codes\n## Protection Circuit Fault Isolation\n## Compressor Fault Isolation\n# COMPONENTS TESTING\n## Refrigerant Flow\n## EEV Stepper Coil\n# R-454B SEALED SYSTEM REPAIR\n## Refrigerant Removal, Recovery, and Evacuation\n## Refrigerant Charging\n## Compressor Replacement\n# WIRING DIAGRAMS\n## 115v Indoor Unit\n## 230v Indoor Unit with A2L Sensor Capability\n# APPENDIX\n## Interactive Parts Viewer\n## Limited Warranty","[{\"question\":\"Who is this service manual intended for?\",\"answer\":\"The manual is intended for use by a qualified technician familiar with required safety procedures and equipped with proper tools and test instruments for servicing the product.\"},{\"question\":\"What are the key safety risks highlighted in the manual?\",\"answer\":\"It warns that installation or repairs by unqualified persons can lead to serious or fatal injury and hazards such as electrical shock, and it emphasizes reading and obeying safety messages throughout.\"},{\"question\":\"Which systems and models does the manual cover?\",\"answer\":\"It covers the ductless Floating Air single-zone system using R-454B refrigerant, including specified 115V and 230V wall mounted indoor and outdoor units listed by model numbers in the table of contents.\"}]","Floating Air - Single Zone R-454B Refrigerant Ductless Service Manual | PDF",1792714536,295]