What primary function does a pressure limiting device serve in a refrigerant system?

The primary function of a pressure limiting device in a refrigerant system is to reduce pressure, thus ensuring the safety and proper functioning of the system. This device acts as a safeguard to prevent excessive pressure buildup that could lead to system failure or safety hazards. By allowing the system to release or control pressure at certain levels, it helps maintain the integrity of components such as compressors and piping, which can be compromised under high pressure.

The functionality of pressure limiting devices is crucial in various refrigeration systems, including both commercial and industrial applications. They help in maintaining operational efficiency by preventing conditions that might lead to inefficiencies or damage.

While options like increasing flow, monitoring temperature, and controlling humidity are important functions within refrigeration systems, they are not directly related to the role of a pressure limiting device, which is specifically designed to manage pressure levels.