Which statement is true about System controls according to the ASME code?

System controls are critical for ensuring the safe and efficient operation of automatically fired boilers. According to the ASME code, these controls are designed to monitor and adjust the boiler's operation to maintain safe pressure and temperature levels. The correct answer highlights that these controls must be applied to automatically fired boilers, as automatic systems require specific control mechanisms to prevent hazardous conditions. This is particularly essential in preventing situations like overheating or pressure buildup that could lead to catastrophic failures.

The design of these controls helps ensure that the boiler operates within its intended parameters and responds appropriately to changes in system demands or environmental conditions. This requirement enhances safety and efficiency, making it a fundamental aspect of the ASME code regarding boiler operations.