Carrier 58M 11SI Gas Furnace Owners Manual

Primary Cell Inlet Panel Kit Cancels: New IIK 350M-35-6 8-15-93 Part No. 320720-751, -753, -754, -755, -756, -757, -758, and -760 NOTE: Read the entire instruction manual before starting the installation. INTRODUCTION This instruction covers installation of the primary cell inlet panel kit Part No. 320720-751, -753, -754, -755, -756, -757, -758, and -760 in multipoise 40-in. tall, condensing gas furnaces.

NOTE: A releasing agent (Pam cooking spray) and RTV sealant (G.E. 162 or Dow-Corning 738) are needed before starting installation. DO NOT substitute any other type or RTV sealant. SAFETY CONSIDERATIONS Installing and servicing of heating equipment can be hazardous due to gas and electrical components. Only trained personnel should install or service heating equipment. Untrained personnel can perform basic maintenance functions such as cleaning and replacing filters. All other operations should be performed by trained service personnel. When working on heating equipment, observe precautions in the literature, on tags, and on labels attached to the unit. Follow all safety codes. Wear safety glasses and work gloves. Have a fire extinguisher available. Installation Instructions Table 1–Kit Usage MODEL KIT PART NO. -754 320720-755 320720-756 320720-757 320720-758 320720-760 5. Remove 2 screws securing J-box. 6. Remove 2 screws securing top filler panel and rotate panel upwards to remove or allow the heat exchanger to be removed from front of furnace. 7. Disconnect combustion-air intake pipe from intake housing and move pipe out of furnace casing. 8. Disconnect gas supply pipe from gas valve using backup wrench. 9. Disconnect vent pipe from inducer housing by loosening clamp, and move pipe out of furnace casing. 10. Disconnect drain tubes and relief port tube from condensate trap. 11. Remove motor leads, transformer wires, door switch wires, and auxiliary limit switch wires (if present) from control center and pull wires through blower shelf. 12. Remove 2 screws securing blower to blower shelf. 13. Remove 2 screws adjacent to blower mounting screws that secure blower shelf to cell panel. 14. Remove 3 screws from each side of cell panel. 15. Remove control center by removing screw and pressing tabs inward. 16. Secure control center and J-box to manifold for removal purposes only. 17. Remove whole cell panel assembly with heat exchanger, burner box, inducer assembly, J-box, and control center attached through front of furnace. Turn off gas and electrical supplies to unit before beginning any installation or modification. Follow operating instructions on label attached to furnace.