What is the purpose of using a pressure reset in heating systems?

Using a pressure reset in heating systems is primarily designed to handle latch-up conditions. Latch-up can occur when there is an electrical or control issue that causes the heating system's burner to remain in an active state, potentially leading to unsafe conditions or inefficient operation. By implementing a pressure reset, the system can automatically adjust pressure levels, preventing the burner from getting stuck in a continuous firing state. This function is critical for maintaining safety and efficient operation within the heating system.

Additionally, a pressure reset can help in ensuring that the system remains responsive to changes in operational demand, thereby promoting safe and stable performance. By preventing situations where the burner remains on when it shouldn’t, the pressure reset plays a crucial role in the overall safety and reliability of heating systems.