Superheat
Superheat refers to the temperature of a vapor above its boiling point (saturation temperature) at a given pressure. In HVAC systems, it specifically describes the difference between the temperature of the refrigerant vapor at the evaporator outlet and the saturation temperature of the refrigerant inside the evaporator. Proper superheat is essential for ensuring that only vapor (not liquid) enters the compressor, protecting it from damage and optimizing system efficiency.
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