What type of systems require specialized sensing and shut-off procedures?

Class A Systems require specialized sensing and shut-off procedures because they are typically associated with more advanced technologies or applications that deal with specific health and safety standards. These systems may handle complex processes or potentially hazardous substances where precise monitoring is crucial to prevent accidents or contamination.

In a Class A System, the specialized sensing equipment is necessary to detect any anomalies or changes in conditions that could indicate a failure or risk, prompting an automatic shut-off to ensure safety and compliance. This level of operational safety is essential in environments where the integrity of water treatment and distribution can directly impact public health.

Other systems, such as standard, economy, or advanced systems, might not have the same stringent requirements for sensing and shut-off. Standard systems may rely on basic mechanical features without a comprehensive automated monitoring system, while economy systems typically prioritize cost-efficiency over complex safety measures. Advanced systems, although more sophisticated, may not always necessitate the same level of dedicated sensing and shut-off protocols as Class A Systems, depending on their specific applications and contexts.