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The guide explains that improper installation, adjustment, service, or maintenance can lead to fire, electrical shock, property damage, personal injury, or death. It provides structured coverage from safety and general information through electrical wiring, airflow performance, ductwork, refrigerant connections, air filtration, operating sequence, calculations, pre-start checks, maintenance, and replacement parts.",{"@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/air-handlers-featuring-industry-standard-r-410a-refrigerant-installation-instructions/641241/",{"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/air-handlers-featuring-industry-standard-r-410a-refrigerant-installation-instructions/641241.png","ImageObject",300,407,{"name":92,"@type":93},"Jordan Avery","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-13","2026-10-22",true,{"@type":102,"interactionType":103,"userInteractionCount":39},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Who are these air handler installation instructions intended for?","Question",{"text":112,"@type":113},"They are intended as an aid to qualified licensed service personnel responsible for proper installation, adjustment, service, and operation of the unit.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What are the consequences of not following the installation and maintenance instructions?",{"text":117,"@type":113},"Failure to follow the instructions may result in improper installation or service, potentially leading to fire, electrical shock, property damage, personal injury, or death.",{"name":119,"@type":110,"acceptedAnswer":120},"What electrical safety steps are required before installing or servicing?",{"text":121,"@type":113},"Disconnect all power to the unit before installing or servicing. More than one disconnect switch may be required to fully de-energize the equipment.","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},641241,1792723374,{"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":39,"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},1099523882367,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","INSTALLATION INSTRUCTIONS  \nAIR HANDLERS  \nFEATURING INDUSTRY STANDARD R-410A REFRIGERANT:   \ne frig er ant  \nRHLL High Efficiency  \nRHSL Standard Efficiency  \nThese instructions are intended as an aid to qualified licensed service personnel for proper installation, adjustment and operation of this unit. Read these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance possibly resulting in fire, electrical shock, property damage, personal injury or death.  \n92-20521-32-19  \nSUPERSEDES 92-20521-32-18  \nTABLE OF CONTENTS  \n1.0 SAFETY INFORMATION ............................................ 3  \n2.0 GENERAL INFORMATION .......................................... 5  \n2.1 Important Information About Efficiency and Indoor Air Quality............ 5  \n2.2 Receiving .................................................... 6  \n2.3 Clearances ................................................... 6  \n2.4 Model Number Explanation ...................................... 7  \n2.4A Available Models .......................................... 8  \n2.5 Dimensions and Weights ........................................ 9  \n3.0 APPLICATIONS .................................................. 10  \n3.1 Vertical Upflow ............................................... 10  \n3.2 Vertical Downflow............................................. 10  \n3.3 Horizontal ................................................... 11  \n3.4 Installation in an Unconditioned Space ............................ 12  \n3.5 Installation in Mobile/Manufactured Homes ......................... 13  \n4.0 ELECTRICAL WIRING ............................................. 14  \n4.1 Power Wiring ................................................ 14  \n4.2 Control Wiring ............................................... 14  \n4.3 Grounding .................................................. 14  \n4.4 Electrical Wiring .............................................. 15  \n4.5 Blower Motor Electrical Data .................................... 15  \n4.5A Blower Motor Electrical Data: (-)HSL.......................... 15  \n4.5B Blower Motor Electrical Data: (-)HLL .......................... 15  \n4.6 Electric Heat Electrical Data .................................... 16  \n4.6A Electric Heat Electrical Data: (-)HSL .......................... 16  \n4.6B Electric Heat Electrical Data: (-)HLL .......................... 19  \n4.6C Heater Kit Supplemental Information ......................... 22  \n5.0 AIRFLOW PERFORMANCE ........................................ 24  \n5.1 Airflow Operating Limits (-)HSL .................................. 24  \n5.2 240V Airflow Performance Data (-)HSL ............................ 25  \n5.3 115/208/480V Airflow Performance Data (-)HSL ..................... 27  \n5.4 115/208/240V Airflow Performance Data (-)HLL ..................... 29  \n6.0 DUCTWORK..................................................... 32  \n7.0 REFRIGERANT CONNECTIONS .................................... 32  \n7.1 TEV Sensing Bulb ............................................ 32  \n7.2 Condensate Drain Tubing ...................................... 33  \n7.3 Duct Flanges ................................................ 34  \n8.0 AIR FILTER ..................................................... 34  \n9.0 SEQUENCE OF OPERATION ....................................... 35  \n9.1 Cooling ..................................................... 35  \n9.2 Heating (electric heat only) ..................................... 35  \n9.3 Heating (heat pump) .......................................... 35  \n9.4 Blower Time Delay (heating or cooling) ............................ 35  \n9.5 Defrost (defrost heat control) .................................... 35  \n9.6 Emergency Heat (heating heat pump) ............................. 36  \n9.7 Room Thermostat (anticipator setting) ............................. 36  \n10.0 CALCULATIONS ..............................","cbCaisPqPEl0Yfyc","https://ap.wps.com/l/cbCaisPqPEl0Yfyc","pdf",1457181,44,"English","# Safety information\n# General information\n## Important information about efficiency and indoor air quality\n# Applications\n# Electrical wiring\n# Airflow performance\n# Ductwork\n# Refrigerant connections\n# Air filter\n# Sequence of operation\n# Calculations\n# Pre-start checklist\n# Maintenance\n# Replacement parts\n# Accessories-kits-parts","[{\"question\":\"Who are these air handler installation instructions intended for?\",\"answer\":\"They are intended as an aid to qualified licensed service personnel responsible for proper installation, adjustment, service, and operation of the unit.\"},{\"question\":\"What are the consequences of not following the installation and maintenance instructions?\",\"answer\":\"Failure to follow the instructions may result in improper installation or service, potentially leading to fire, electrical shock, property damage, personal injury, or death.\"},{\"question\":\"What electrical safety steps are required before installing or servicing?\",\"answer\":\"Disconnect all power to the unit before installing or servicing. More than one disconnect switch may be required to fully de-energize the equipment.\"}]","AIR HANDLERS - FEATURING INDUSTRY STANDARD R-410A REFRIGERANT - Installation Instructions | PDF",1792713292,111]