•  The cooling unit consists of an evaporator, expansion valve, high pressure pipe, cooler case and thermistor.

•  The cooling unit cools and dehumidifies the airflow from the blower unit.

•  The thermistor is built into the cooling unit and controls the A/C compressor.

•  The evaporator vaporizes the refrigerant flowing inside it. The latent heat of the vaporized refrigerant cools the air passing through the evaporator. At the same time, moisture in the air condensates. In this way, dehumidified air is supplied to the passenger compartment.

•  The evaporator is a single tank drawn cup type. Because refrigerant flows through several separate tubes, flow path resistance is kept low and the surface area for heat exchange is increased, improving air conditioning efficiency.

•  The expansion valve causes a sudden decrease in the pressure of the liquid refrigerant. This atomizes the refrigerant, making it easier for the evaporator to vaporize it. The expansion valve also regulates the flow volume of the refrigerant sent to the evaporator.

•  An internal pressure equalizer expansion valve is used. It regulates the flow volume of the refrigerant supplied to the evaporator so that the heat absorption process of the evaporator is utilized efficiently.