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Includes mandatory safety precautions, installer responsibility notes, unpacking and inspection steps, and California-approved usage guidance. Provides detailed heater descriptions and specifications, including models 4LX55 through 4LX68, gas types, thermal efficiency, performance data (input/output, airflow, temperature rise), electrical and motor data, and dimensional measurements for installation planning.",{"@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":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/dayton-tubular-gas-fired-direct-spark-propeller-unit-heaters-operating-instructions-and-parts-manual-version-2-2015/646009/",{"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/dayton-tubular-gas-fired-direct-spark-propeller-unit-heaters-operating-instructions-and-parts-manual-version-2-2015/646009.png","ImageObject",300,407,{"name":92,"@type":93},"dhado","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-27","2026-10-23",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 safety precautions are emphasized before installing or operating the heaters?","Question",{"text":112,"@type":113},"Follow all safety information, protect yourself and others, and avoid improper installation, adjustment, alteration, service, or maintenance. Read installation, operating, and maintenance instructions thoroughly before work starts.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What should the installer do immediately after receiving the shipment?",{"text":117,"@type":113},"Inspect the shipment immediately to determine whether damage occurred. After uncrating, check for visible damage; if found, have the consignee note the damage on the bill of lading and file a claim with the transportation company.",{"name":119,"@type":110,"acceptedAnswer":120},"What does the manual state about fuel and combustion byproducts in California?",{"text":121,"@type":113},"Install, operate, and maintain the unit according to the manufacturer’s instructions to avoid exposure to fuel substances and substances from incomplete combustion. The manual notes that California has determined these substances may cause cancer, birth defects, or other reproductive harm.","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},646009,1793091187,{"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":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":144,"read_time":145},5909893218464,"https://ap-avatar.wpscdn.com/davatar_085a072bc5b1113ac321206ff7593b45","Operating Instructions and Parts Manual 4LX55 thru 4LX68  \nRead carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference. Installation by qualified professional technician only. Not for residential use.  \nDayton® Tubular Gas Fired  \nDirect Spark Propeller Unit Heaters  \nDescription  \nTubular gas fired unit heaters are factory assembled, power vented, low static pressure type propeller fan unit heaters designed to be suspended within the space to be heated. THESE HEATERS ARE NOT TO BE CONNECTED TO DUCTWORK. The designs are certified by ETL as providing a minimum of 83% thermal efficiency, and approved for use in California. Do not alter these units in any way. If you have any questions after reading this manual, contact the manufacturer.  \nInstaller’s Responsibility Installer Please Note: This equipment has been test fired and inspected. It has been shipped free from defects from our factory. However, during shipment and installation, problems such as loose wires, leaks, or loose fasteners may occur. It is the installer’s responsibility to inspect and correct any  \nFOR YOUR SAFETY The use and storage of gasoline or other flammable vapors and liquids in open containers in the vicinity of this appliance is hazardous.  \nFOR YOUR SAFETY If you smell gas:  \n1.Open windows.  \n2. Don’t touch electrical switches.  \n3.Extinguish any open flame.  \n4.Immediately contact your gas supplier.  \n Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment.  \nAPPROVED FOR USE IN CALIFORNIA  \n Install, operate and maintain unit in accordance with manufacturer’s instructions to avoid exposure to fuel substances or substances from incomplete combustion which can cause death or serious illness. The state of California has determined that these substances may cause cancer, birth defects, or other reproductive harm.  \nproblem that may be found.  \nFigure 1 – Tubular Propeller Uni Heater Unpacking  \nInspect shipment immediately when received to determine if any damage has occurred to the unit during shipment. After the unit has been uncrated, check for any visible damage to the unit. If any damage is found, the consignee should sign the bill of lading indicating such damage and immediately file claim for damage with the transportation company.  \nCM  \nERIFIE  \nTERTE  \nN  \nD  \nI  \nK  \nV  \nENERGY PERFORMANCE VERIFIED  \nRENDEMENTENERGETIQUEVERIFIE  \nForm 5S6900  \nPrinted in U.S.A. 08262 Version 2 01/2015  \n®  \nE  \nN  \nG  \nL I  \nS  \nH  \nE  \nN  \nG  \nL I  \nS  \nH  \nDayton® Tubular Gas Fired  \nDirect Spark Propeller Unit Heaters  \nSpecifications  \nTable 1 – Tubular Propeller Unit Heater (Refer to Figure 2)  \n\n| Unit Size | 150 | 175 | 200 | 250 | 300 | 350 | 400 |\n| --- | --- | --- | --- | --- | --- | --- | --- |\n| Model Numbers | L.P. 4LX55 | 4LX57 | 4LX59 | 4LX61 | 4LX63 | 4LX65 | 4LX67 |\n| Type of Gas | Nat. 4LX56 | 4LX58 | 4LX60 | 4LX62 | 4LX64 | 4LX66 | 4LX68 |\n| PERFORMANCE DATA† |  |  |  |  |  |  |  |\n| Input – BTU/Hr. | 150,000 | 175,000 | 200,000 | 250,000 | 300,000 | 350,000 | 400,000 |\n| (kW) | (43.9) | (51.2) | (58.6) | (73.2) | (87.8) | (102.5) | (117.1) |\n| Output – BTU/Hr. | 124,500 | 145,250 | 166,000 | 207,500 | 249,000 | 290,500 | 322,000 |\n| (kW) | (36.4) | (42.5) | (48.6) | (60.7) | (72.9) | (85.1) | (97.2) |\n| Thermal Efficiency (%) | 83 | 83 | 83 | 83 | 83 | 83 | 83 |\n| Free Air Delivery – CFM | 2,400 | 2,850 | 3,200 | 3,450 | 5,000 | 5,600 | 5,800 |\n| (cu. m/s) | (1.133) | (1.346) | (1.511) | (1.629) | (2.361) | (2.644) | (2.738) |\n| Air Temperature Rise – °F | 47 | 46 | 47 | 54 | 45 | 47 | 51 |\n| (°C) | (26) | (26) | (26) | (30) | (24) | (26) | (28","cbCaie3loH1k3nNw","https://ap.wps.com/l/cbCaie3loH1k3nNw","pdf",1569318,32,"English","# Installer and Safety Information\n## Before Installation and General Safety Rules\n## Installer Responsibility and Notes\n## For Your Safety: If You Smell Gas\n## Approved for Use in California\n# Product Description and Unpacking\n## Description of Tubular Gas-Fired Unit Heaters\n## Unpacking and Shipment Inspection\n# Model and Specifications\n## Table 1: Tubular Propeller Unit Heater Models\n## Performance Data and Operating Parameters\n## Motor and Electrical Data\n## Dimensional Data","[{\"question\":\"What safety precautions are emphasized before installing or operating the heaters?\",\"answer\":\"Follow all safety information, protect yourself and others, and avoid improper installation, adjustment, alteration, service, or maintenance. Read installation, operating, and maintenance instructions thoroughly before work starts.\"},{\"question\":\"What should the installer do immediately after receiving the shipment?\",\"answer\":\"Inspect the shipment immediately to determine whether damage occurred. After uncrating, check for visible damage; if found, have the consignee note the damage on the bill of lading and file a claim with the transportation company.\"},{\"question\":\"What does the manual state about fuel and combustion byproducts in California?\",\"answer\":\"Install, operate, and maintain the unit according to the manufacturer’s instructions to avoid exposure to fuel substances and substances from incomplete combustion. The manual notes that California has determined these substances may cause cancer, birth defects, or other reproductive harm.\"}]","Dayton Tubular Gas Fired Direct Spark Propeller Unit Heaters - Operating Instructions and Parts Manual - Version 2 - 2015 | PDF",1792745660,81]