How is an oil furnace transformer wiring diagram structured?

An oil furnace transformer troubleshooting requires an understanding of wiring diagrams, which typically illustrate the connections between various components of the oil furnace system. The transformer is usually the first point of electrical connection, converting standard voltage into a lower voltage suitable for the ignition system. In the wiring diagram, you will find the primary side of the transformer wired to the main power supply, with input terminals clearly marked. The secondary side connects to the ignition transformer, providing the necessary voltage for creating a spark. Additionally, safety devices such as limit switches and control boards may be depicted, showing their critical role in preventing overheating or high-pressure conditions. Understanding the layout allows for effective oil furnace transformer troubleshooting by identifying potential faults in the wiring or component interactions.