The CSA B52 code requires what type of devices shall be provided on all states operating above atmospheric pressure?

The CSA B52 code specifies that pressure limiting devices are necessary on all systems operating above atmospheric pressure to ensure safety and compliance with industry standards. These devices serve a critical function in monitoring and regulating the pressure within refrigeration systems, preventing excessive pressure buildup that could lead to dangerous conditions, equipment failure, or even catastrophic incidents such as explosions.

Pressure limiting devices trigger automatic shutdowns or venting actions when pressure exceeds safe thresholds, thereby protecting both the equipment and personnel working with or near the system. This requirement aligns with broader safety measures in the refrigeration industry, which prioritize the management of pressures to prevent accidents and ensure safe operation.

Implementing such devices is essential not only for regulatory compliance but also for ensuring that the refrigeration systems operate efficiently within their designed safety margins. Thus, their presence is fundamental in systems that operate above atmospheric pressure, reflecting the CSA B52 code's emphasis on safety in refrigeration practices.