When it comes to the comfort and functionality of our vehicles, one crucial system that often goes unnoticed is the HVAC system. This system is responsible for regulating the temperature, humidity, and air quality inside the vehicle, ensuring a pleasant driving experience regardless of the weather conditions. Outside. At the center of the automotive HVAC system is the compressor often referred to as the heart of the system. The compressor plays a crucial role in the cooling process by pressurizing the refrigerant, allowing to absorb heat from the cabin and release it outside. Driven by the engine through a belt or electrically powered the compressor, takes in low pressure refrigerant vapor from the evaporator, and compresses it into a high pressure, high temperature gas. This compression raises the temperature of the refrigerant to prepare it for the next stage of the cooling process. Once the refrigerant leaves the compressor as a hot high pressure gas, it travels to the condenser.