How would you remove moisture from refrigerant in a system?

Using a filter drier is the correct method to effectively remove moisture from refrigerant in a system. A filter drier contains desiccants that are specifically designed to absorb moisture and contaminants from the refrigerant. This is crucial because moisture can lead to various problems within a refrigeration system, such as acid formation, corrosion, and decreased efficiency.

When refrigerant passes through the filter drier, the moisture is trapped by the desiccant material, ensuring that only clean, dry refrigerant continues through the system. This helps maintain the reliability and efficiency of the system, which is essential for optimal operation.

In contrast, while a vacuum pump can remove air and some moisture when the system is evacuated, it’s not specifically designed to remove moisture from refrigerants in a running system—it’s primarily used during the initial evacuation or maintenance stages. A moisture meter can indicate the presence of moisture but does not have the ability to remove it. A refrigerant reclaim tank is designed for recovering and storing refrigerant, not for moisture removal. Therefore, a filter drier is the most appropriate choice for this purpose.