Refrigeration & Air Conditioning Mechanic Red Seal · Question
A refrigeration system is operating with R-410A. The suction line pressure entering the compressor is 825 kPa gauge and the temperature is -3°C. The saturated suction temperature for R-410A at 825 kPa gauge is -8°C. What is the superheat of the refrigerant?
Superheat is the difference between the actual suction line temperature and the saturated suction temperature. In this case, -3°C - (-8°C) = 5 K. This indicates
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Question: A refrigeration system is operating with R-410A. The suction line pressure entering the compressor is 825 kPa gauge and the temperature is -3°C. The saturated suction temperature for R-410A at 825 kPa gauge is -8°C. What is the superheat of the refrigerant?
Answer options: ✅ 5 K
- 8 K
- 11 K
- 13 K
Correct answer: 5 K
Explanation: Superheat is the difference between the actual suction line temperature and the saturated suction temperature. In this case, -3°C - (-8°C) = 5 K. This indicates the amount of heat added above the saturation point.
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