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Includes an installation checklist used before troubleshooting, covering gas supply, electrical wiring, venting, combustion air, furnace installation clearances, temperature rise, external static pressure, and ducting requirements. Provides safety information emphasizing approved gas type, outdoor vent discharge, leak testing with soap solution, proper temperature-rise range, sealed return-air ducting, and residential garage burner elevation requirements.","INSTALLATION INSTRUCTIONS FOR UPFLOW, UPFLOW/HORIZONTAL,  \nAND DOWNFLOW INDUCED DRAFT GAS FURNACES (-)GPH,(-)GPJ,(-)GLH & (-)GLJ SERIES  \n92-24161-08-03  \nSUPERSEDES 92-24161-08-02  \nBefore beginning any troubleshooting procedure, complete the following installation checklist. A furnace malfunction is sometimes caused by an improper installation. By completing this checklist, the problem may be found and corrected. Make copies of the checklist and complete one for every Low Profile Furnace service call for your records.  \nINSTALLATION CHECKLIST  \n(Refer to this manual for specifics.)  \nGAS SUPPLY  \n  Adequate pipe size   No gas leaks  \n  Proper supply and manifold gas pressure (check with an accurate U-tube manometer with the furnace and all other gas appliances operating.)  \nELECTRICAL  \n  Correct thermostat and subbase   Thermostat model   Subbase model   Correct thermostat mode and setting  \n  Correct line supply voltage  \n  Correct power supply polarity is required with electronic ignition   Correct furnace ground to electrical panel  \n  DC microamp (µA) flame signal (hot surface ignition units) ~~ ~~ Correct control voltage  \n  Measure and set heat anticipator amperage  \n  Air conditioning low voltage wires connected to terminals “Y”“C” -not with wire nuts  \nVENTING  \n  Correct vent pipe diameter and length (according to CSA tables)   Vent connection size   Correct venting material (according to CSA tables)  \n  Correct lining for masonry chimneys   Adequate clearance from combustibles   Proper negative pressure reading in the vent   Vent pipe secured to induced draft blower housing  \nCOMBUSTION AIR  \n  Proper source of combustion air   Correct combustion air opening size  \nFURNACE INSTALLATION  \n  Adequate clearance from combustibles   Adequate clearance for service  \n  Proper air temperature rise (See furnace rating plate)  \n  External static pressure   inches w.c.  \n  Correct filter(s)  \n  Correct cooling coil or accessories (if equipped)  \n  Adequate supply and return air ducting   Return Air Duct Size   Supply Air Duct Size   Air ducts sealed to prevent leakage  \n\n| CONTENTS\u003Cbr>Safety Precautions ...................................................................................................4\u003Cbr>Installation Check List ..............................................................................................2\u003Cbr>General Information ..................................................................................................5\u003Cbr>Location Requirements and Considerations ............................................................5\u003Cbr>Combustion and Ventilation Air ..............................................................................10\u003Cbr>Vent Pipe Installation .............................................................................................. 13\u003Cbr>Gas Supply and Piping ........................................................................................... 16\u003Cbr>Electrical Wiring......................................................................................................20\u003Cbr>Accessories ............................................................................................................21\u003Cbr>Start-Up Procedures...............................................................................................24\u003Cbr>Air Flow ...................................................................................................................26\u003Cbr>Maintenance...........................................................................................................30\u003Cbr>Troubleshooting......................................................................................................33\u003Cbr>Wiring Diagrams .....................................................................................................35 |\n| --- |\n| IMPORTANT: TO INSURE PROPER INSTALLATION AND OPERATION OF THIS PRODUCT, COMPLETELY READ ALL INSTRUCTIONS PRIOR TO ATTEMPTING TO ASSEMBLE, INSTALL, OPERATE, MAINTA","cbCaiccbu60Ey24l","https://ap.wps.com/l/cbCaiccbu60Ey24l","pdf",1387589,12,36,"English","en",105,"# Installation Checklist\n## Gas Supply\n## Electrical\n## Venting\n## Combustion Air\n## Furnace Installation\n# Safety Precautions\n## Approved gas type and location\n## Venting requirements and leak testing\n## Temperature-rise and duct system limits","[{\"question\":\"What should be completed before troubleshooting a furnace malfunction?\",\"answer\":\"Complete the installation checklist first. An improper installation is a common cause, and completing the checklist can help identify and correct the problem.\"},{\"question\":\"How should gas leaks be tested according to these instructions?\",\"answer\":\"Never test for gas leaks with an open flame. Use a commercially available soap solution specifically made to detect leaks and check all connections.\"},{\"question\":\"What venting requirement is emphasized for combustion products?\",\"answer\":\"Combustion products must be discharged outdoors, and the furnace must be connected to an approved vent system as specified in the vent pipe installation section.\"}]","Upflow, Upflow/Horizontal, and Downflow Induced Draft Gas Furnaces Installation Instructions - GPH, GPJ, GLH & GLJ Series - Installation checklist and safety precautions | PDF",1792714772,91,{"code":4,"msg":83,"data":84},"ok",{"site_id":76,"language":75,"slug":85,"title":65,"keywords":86,"description":66,"schema_data":87,"social_meta":141,"head_meta":143,"extra_data":145,"updated_unix":146},"upflow-upflowhorizontal-and-downflow-induced-draft-gas-furnaces-installation-instructions-gph-gpj-glh-glj-series-installation-checklist-and-safety-precautions","",{"@graph":88,"@context":140},[89,103,123],{"@type":90,"itemListElement":91},"BreadcrumbList",[92,96,98,101],{"item":93,"name":94,"@type":95,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":97,"name":9,"@type":95,"position":14},"https://docshare.wps.com/document/",{"item":99,"name":35,"@type":95,"position":100},"https://docshare.wps.com/document/healthcare/",3,{"item":102,"name":65,"@type":95,"position":19},"https://docshare.wps.com/document/upflow-upflowhorizontal-and-downflow-induced-draft-gas-furnaces-installation-instructions-gph-gpj-glh-glj-series-installation-checklist-and-safety-precautions/641567/",{"url":102,"name":65,"@type":104,"image":105,"author":110,"headline":65,"publisher":112,"fileFormat":115,"inLanguage":75,"description":66,"dateModified":116,"datePublished":117,"encodingFormat":115,"isAccessibleForFree":118,"interactionStatistic":119},"DigitalDocument",{"url":106,"@type":107,"width":108,"height":109},"https://docshare.wps.com/thumbnails/upflow-upflowhorizontal-and-downflow-induced-draft-gas-furnaces-installation-instructions-gph-gpj-glh-glj-series-installation-checklist-and-safety-precautions/641567.png","ImageObject",300,407,{"name":63,"@type":111},"Person",{"url":93,"name":113,"@type":114},"DocShare","Organization","application/pdf","2026-11-13","2026-10-23",true,{"@type":120,"interactionType":121,"userInteractionCount":72},"InteractionCounter",{"@type":122},"ViewAction",{"@type":124,"mainEntity":125},"FAQPage",[126,132,136],{"name":127,"@type":128,"acceptedAnswer":129},"What should be completed before troubleshooting a furnace malfunction?","Question",{"text":130,"@type":131},"Complete the installation checklist first. An improper installation is a common cause, and completing the checklist can help identify and correct the problem.","Answer",{"name":133,"@type":128,"acceptedAnswer":134},"How should gas leaks be tested according to these instructions?",{"text":135,"@type":131},"Never test for gas leaks with an open flame. Use a commercially available soap solution specifically made to detect leaks and check all connections.",{"name":137,"@type":128,"acceptedAnswer":138},"What venting requirement is emphasized for combustion products?",{"text":139,"@type":131},"Combustion products must be discharged outdoors, and the furnace must be connected to an approved vent system as specified in the vent pipe installation section.","https://schema.org",{"og:url":102,"og:type":142,"og:title":65,"og:site_name":113,"og:description":66},"article",{"robots":144,"canonical":102},"index,follow",{"doc_id":61,"site_id":76},1792876105]