How does a photoelectric cell function in an oil burner system?

A photoelectric cell plays a crucial role in an oil burner system by detecting the presence of flame in the combustion chamber. This device operates by utilizing a light-sensitive element that can monitor the intensity of light produced by the flame. When the burner operates correctly and a flame is present, the cell generates a signal indicating that combustion is taking place. If the flame goes out or is insufficient, the photoelectric cell will not detect the necessary light, sending a signal to ensure that safety protocols are followed, potentially shutting down the burner to prevent unsafe conditions, such as the release of unburned fuel.

The other functions mentioned—regulating fuel pressure, measuring temperature, and controlling fan speed—are typically managed by different components of the oil burner system. Each of these functions is essential for overall operation; however, it is the photoelectric cell that specifically serves to ensure that there is a reliable flame, making it critical for safety and efficiency.