Refrigerant blends take on the ASHRAE number of the main refrigerant in the blend.

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Prepare for the SkillCat EPA Type 2 Test with interactive flashcards and multiple-choice questions. Each question is accompanied by hints and explanations. Get ready to pass your exam!

Multiple Choice

Refrigerant blends take on the ASHRAE number of the main refrigerant in the blend.

Explanation:
Refrigerant blends are identified by their own ASHRAE/R-number, not by the largest component in the mix. The designation is assigned to the exact mixture, so blends like R-407C or R-410A are named for the specific combination of components and their proportions, regardless of which component is present in the greatest amount. For example, R-407C is a blend of R-32, R-125, and R-143a, and R-410A is a 50/50 mix of R-32 and R-125. Their numbers (407C and 410A) reflect the blend itself, not the main component, so the statement is false.

Refrigerant blends are identified by their own ASHRAE/R-number, not by the largest component in the mix. The designation is assigned to the exact mixture, so blends like R-407C or R-410A are named for the specific combination of components and their proportions, regardless of which component is present in the greatest amount. For example, R-407C is a blend of R-32, R-125, and R-143a, and R-410A is a 50/50 mix of R-32 and R-125. Their numbers (407C and 410A) reflect the blend itself, not the main component, so the statement is false.

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