How to read a furnace wiring diagram. In this video I show how to "read" or follow the wires on a gas furnace wiring diagram. I go over a schematic diagram a.. The furnace wiring schematic is a diagram that provides a visual representation of the electrical connections and components within the furnace system. This guide will help you understand the different elements of the furnace wiring schematic and how to troubleshoot common issues. Understanding the Furnace Wiring Schematic:
Field Wiring Diagrams 29 Gas Piping 32 Combustion Input Checks 33 Start Up and Adjustment 36 Preliminary Inspections 36 Lighting Instructions 36. the floor and the furnace must be located or protected to avoid physical damage from vehicles. IMPORTANT: The furnace must be installed level. The only allowable varia-. 18 - Separate Thermostats, Same Furnace Wiring Diagram 12. 1 - Electric Furnace Model Specifications. 2 - Model Nomenclature. 3 - Optional Cooling Cabinets and Return Air Grille. 4 - Clearances to Combustibles.. Use two screws to secure the furnace to the floor. Figure 10: Return Air Grille Frame Assembly MORTEX PRODUCTS INC FORT WORTH, TX.