What is the role of the ignition transformer in the boiler startup sequence?

The ignition transformer plays a crucial role during the boiler startup sequence by generating a high-voltage spark that is essential for igniting the pilot flame. This pilot flame is necessary for establishing combustion before the main burner is activated.

By energizing the pilot gas valve, the ignition transformer allows gas to flow to the pilot burner, where it can be ignited. This process is fundamental for ensuring that there is a reliable flame to detect before the main burner can safely operate. The pilot flame not only ensures the ignition of the main burner once the boiler is in operation, but it also helps to monitor overall system safety.

In this sequence, the ignition transformer acts as the key component that initiates the combustion process by ensuring the pilot flame is lit, which serves as an indicator for the system to proceed to full operation safely. Thus, understanding the ignition transformer's function is essential for maintaining operational integrity and safety in boiler systems.