Here Refrigerator component details The condenser's main job is to cool down the refrigerant. The condenser coils hold hot refrigerant. Air flows over the condenser coils and heat transfers from the hot condenser coils to the cool air. This heat transfer takes heat away from the refrigerant, so it cools it down.he compressor is the pump that enables the flow of the refrigerant. The compressor works by increasing the pressure and temperature of the vaporized refrigerant. There are different types of compressors for refrigeration applications in The compressor pressurizes the refrigerant, turning it into a hot, high-pressure gas. This gas leaves the compressor and flows into the condenser coils. This is where the refrigerant releases much of the heat that was absorbed in the evaporator.