What is a ternary blend?

• A. Two refrigerants blended together.
• B. A single refrigerant with additives.
• C. Three refrigerants blended together.
• D. A triple-acting refrigerant mechanism.

Answer: (C)

A ternary blend is a mixture that uses three different refrigerants blended together to create a single refrigerant with tailored properties. The term ternary means three parts, so this combination is designed to tune performance characteristics like pressure, temperature glide, and efficiency while balancing environmental considerations. This differs from a binary blend, which mixes only two refrigerants, and from a single refrigerant with additives, which is still just one component with additives rather than three distinct components. A triple-acting refrigerant mechanism isn’t a standard concept in this context. So a ternary blend is three refrigerants blended together.