HVAC - EPA Certification Practice Exam

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What does recycling refrigerant involve?

Storing refrigerant in a sealed container
Changing the refrigerant's chemical structure
Cleaning refrigerant by separating oil and removing moisture
Disposing of refrigerant as hazardous waste

The correct answer is: Cleaning refrigerant by separating oil and removing moisture

Recycling refrigerant involves the process of cleaning the refrigerant so that it can be reused. This includes separating any oil that may have mixed with the refrigerant and removing moisture that can compromise the refrigerant’s effectiveness and safety. Moisture in refrigerants can lead to acid formation and damage the HVAC system. By properly cleaning and purifying refrigerant, it can be safely reused in the system, reducing environmental impact and conserving resources. While storing refrigerant in a sealed container is important for its safety and to prevent leaks, it does not constitute the recycling process itself. Changing the refrigerant's chemical structure is not part of recycling; rather, it's more about purifying the existing refrigerant. Disposing of refrigerant as hazardous waste is a different action, usually taken when refrigerants can no longer be reused or are contaminated beyond safe reuse.