When refrigerant enters the compressor, what state is it in?

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Multiple Choice

When refrigerant enters the compressor, what state is it in?

Explanation:
When refrigerant enters the compressor, it should be a superheated vapor. On the suction side, the refrigerant has boiled off in the evaporator and is drawn in as vapor, but it’s kept above its saturation temperature for the low pressure to ensure no liquid enters the compressor. This “superheat” means the vapor temperature is higher than the point at which it would start to condense; keeping it superheated prevents liquid slugging, which can damage the compressor and impede operation. After compression, that same vapor becomes high-pressure vapor.

When refrigerant enters the compressor, it should be a superheated vapor. On the suction side, the refrigerant has boiled off in the evaporator and is drawn in as vapor, but it’s kept above its saturation temperature for the low pressure to ensure no liquid enters the compressor. This “superheat” means the vapor temperature is higher than the point at which it would start to condense; keeping it superheated prevents liquid slugging, which can damage the compressor and impede operation. After compression, that same vapor becomes high-pressure vapor.

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