Condenser is a heat dissipation component in cold air conditioning system. Just like the water tank, it is used for cooling water, and the condenser is used for cooling refrigerant. Its heat dissipation directly affects the air conditioning effect. The heater box is only a heating component in the hot air conditioning system. When the water in the engine passes through the warm air tank, the warm air tank is heated, and when the blower blows, it is warm air.