Final answer:
Liquid line filter-driers are necessary in systems using HFC refrigerants because they remove moisture and contaminants that can damage the system, the POE oil used with this refrigerant is hygroscopic, and the cleaner system can lead to improved efficiency. By preventing compressor failure and other potential errors, these filter-driers play a vital role in extending the life of the refrigeration system.
Step-by-step explanation:
The reason why liquid line filter-driers are required for all systems using HFC refrigerant range from moisture removal to system efficiency-enhancement. First, the POE oil used with HFC refrigerant is notably hygroscopic, which means it readily absorbs water. This can be detrimental as it invites moisture into the system. Second, filter-driers work to remove contaminants and moisture that have the potential to harm the system. If left unchecked, these unwanted substances can lead to system malfunctions or complete failure.
Lastly, a cleaner system thanks to the liquid line filter-driers can improve the efficiency of the HFC refrigerant and can significantly reduce the risk of compressor failure in HFC systems. Just like other parts of the air conditioning system, such as the condenser and the evaporator, the filter plays a critical role in the system's overall functionality and health.
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