. 440 01 4542 00 11/18/19INSTALLATION INSTRUCTIONSSingle--Stage, 35--in. (889 mm) TallHigh Efficiency Condensing Gas FurnaceN92ESN(Series A)NOTE: Read the entire instruction manual before starting the installation.SECTIONSSAFETY CONSIDERATIONS 4. . . . . . . . . . . . . . . . . . . . . . . . .INTRODUCTION 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CODES AND STANDARDS 6. . . . . . . . . . . . . . . . . . . . . . . . . . .ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 7. . .ACCESSORIES 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .LOCATION 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIR FOR COMBUSTION AND VENTILATION 8. . . . . . . . . .CONDENSATE TRAP 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CONDENSATE DRAIN 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .INSTALLATION 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIR DUCTS 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GAS PIPING 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ELECTRICAL CONNECTIONS 26. . . . . . . . . . . . . . . . . . . . . . .VENTING 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .START--UP, ADJUSTMENT, AND SAFETY CHECK 53. . . . . .SERVICE AND MAINTENANCE PROCEDURES 61. . . . . . . .SEQUENCE OF OPERATION 71. . . . . . . . . . . . . . . . . . . . . . . .PARTS REPLACEMENT GUIDE 73. . . . . . . . . . . . . . . . . . . . . .Use of the AHRI Certified TM Mark indicates amanufacturer’s participation in the program.For verification of certification for individualproducts, go to www.ahridirectory.org .Portions of the text and tables are reprinted from current edition ofNFPA 54/ANSI Z223.1, with permission of National FireProtection Association, Quincy, MA 02269 and American GasAssociation, Washington DC 20001. This reprinted material is notthe complete and official position of the NFPA or ANSI on thereferenced subject, which is represented only by the standard in itsentirety.TABLESLoose Parts Bag 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Minimum Clearances to Combustible Materials 5. . . . . . . . . . . . .Minimum Free Area Required 9. . . . . . . . . . . . . . . . . . . . . . . . . .Minimum Space Volumes 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Opening Dimensions 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Filter Size Information 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Air Delivery CFM 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Maximum Capacity of Pipe 25. . . . . . . . . . . . . . . . . . . . . . . . . . .Electrical Data 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Vent Termination Kit for Direct Vent (2--Pipe) System 34. . . . . . .Maximum Equivalent Vent Length 43. . . . . . . . . . . . . . . . . . . . . .Deductions from Maximum Equivalent Vent Length 43. . . . . . . .Maximum Allowable Exposed Vent Lengths Insulation 47. . . . . .Hangar Spacing 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Combustion--Air Vent Pipe, Fitting & Cement Material.. 51. . . . .Altitude Derate Multiplier for U.S.A. 54. . . . . . . . . . . . . . . . . . . .Blower Off Delay Setup Switch 56. . . . . . . . . . . . . . . . . . . . . . . .Orifice Size and Manifold Pressure 58. . . . . . . . . . . . . . . . . . . . .Gas Rate 61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .