What is the primary purpose of a refrigerant filter drier in a refrigeration system?

The primary purpose of a refrigerant filter drier in a refrigeration system is to remove moisture and impurities. This component is crucial for the efficient and safe operation of the system. Moisture in the refrigerant can lead to the formation of acids and sludges which can damage the components, such as the compressor and expansion device, over time. By filtering out these contaminants, the filter drier helps maintain the integrity of the refrigerant, ensuring smooth operation and extending the lifespan of the system.

In addition, the filter drier often contains desiccant materials specifically designed to absorb any moisture present, thus preventing it from causing harm. Its functionality is vital for maintaining the overall health and efficiency of the refrigeration cycle.