This diagram illustrates the refrigeration cycle and airflow in an air conditioning system, showing the flow of refrigerant and air through key components. Outdoor air (A) is drawn over the condenser coil (6) by the condenser fan (7), where high-pressure liquid refrigerant releases heat and condenses. The refrigerant passes through the receiver drier (5) and expansion valve (3), dropping to low pressure and temperature before entering the evaporator coil (2). The evaporator blower (1) moves recirculated air (B) over the evaporator coil, cooling it before releasing cool, fresh air (C) into the room. The compressor (4) compresses low-pressure gas refrigerant to high pressure, completing the cycle. The color-coded lines depict the refrigerant's pressure states, enabling efficient heat exchange and cooling.