The cooling system is one of the most useful machines ever invented by humans. It cools the surrounding air to make you feel comfortable. But how does a cooling system work? A cooling system is a system that dissipates heat energy from one place and transfers it to another place through coolant. This is done by evaporating the coolant and extracting the heat energy. During evaporation, the coolant absorbs the warm air in the room and the warm air is transported to the outdoor unit, where it is cooled down. After the heat energy has been released, the coolant returns to its liquid state. Finally, the cooled air is returned to the room and this is how a cooling system works and there is no doubt that cooling systems make a significant contribution to a more comfortable life.