What is the main purpose of the condenser in a refrigeration system?

• A. to absorb heat from the room
• B. to compress the refrigerant gas
• C. to cool the outdoor air
• D. to reject the heat absorbed by the refrigerant of the evaporator

Answer: (D)

In a refrigeration cycle, the condenser’s job is to reject the heat absorbed by the refrigerant in the evaporator to the outside air. After the refrigerant absorbs heat in the evaporator and is compressed to a high temperature, it carries that heat to the condenser. There, heat flows from the hot refrigerant to the cooler outdoor air, causing the refrigerant to condense back into a liquid so the cycle can continue. The outdoor air is simply the medium that carries away the heat; the condenser itself isn’t meant to cool the outdoor environment. The evaporator absorbs room heat, and the compressor handles compression—that’s why the condenser’s main purpose is heat rejection from the refrigerant to the outdoors.