What is subcooling at the condenser outlet, and how does it inform refrigerant charge and performance?

What is subcooling at the condenser outlet, and how does it inform refrigerant charge and performance?

• A. Subcooling is the difference between condenser liquid temperature and its saturation temperature; higher subcooling indicates proper charge and efficient condenser operation.
• B. Subcooling is the temperature rise of refrigerant vapor.
• C. Subcooling measures humidity within the condenser.
• D. Subcooling is the same as superheat.

Answer: (A)