What does sync mean on a car?

[Autumn]

The sync on a car's air conditioning refers to the synchronization button of the dual-zone automatic air conditioning. When the button light is on, the temperature of the air outlets on both sides of the car is the same and adjusted synchronously. That is, when adjusting the temperature on one side, the air outlets on both sides will have the same temperature. After deactivating the sync, you can set different temperatures for the left and right dual-zone air conditioning. Dual-zone automatic air conditioning means there are two temperature zones, allowing independent temperature adjustments for the left and right sides of the front cabin. Vehicles equipped with dual-zone automatic air conditioning can meet the different temperature requirements of passengers in two different positions inside the car. The independent temperature zones allow for flexible adjustment between different temperature differences. The car air conditioning system consists of a compressor, condenser, throttle element, evaporator, fan, and necessary control components, used to regulate the temperature and humidity inside the car. When the compressor is working, it sucks in low-temperature, low-pressure gaseous refrigerant from the evaporator. After compression, the temperature and pressure of the refrigerant increase, and it is sent to the condenser. In the condenser, the high-temperature, high-pressure gaseous refrigerant transfers heat to the outside air passing through the condenser and liquefies into a liquid. The liquid refrigerant flows through the throttle device, where its temperature and pressure decrease, and then enters the evaporator. In the evaporator, the low-temperature, low-pressure liquid refrigerant absorbs heat from the inside air passing through the evaporator and evaporates into a gas. The gas is then sucked into the compressor for the next cycle. In this way, through the refrigerant circulating in the system, the heat from the inside air is continuously absorbed and discharged to the outside air, gradually lowering the temperature inside the car.