Is it necessary to add fluorine to the heating air tank of Chery Fengyun 2?

Required. According to relevant information, Chery Fengyun 2 must discharge fluorine into the heating water tank. The heating water tank is a heating component in the thermal air conditioning system. When the water in the engine flows through the heating water tank, it heats the heating water tank and the fan works. , blowing air against the heater water tank, the wind is heated when passing through the heater water tank, then the warm air comes out of the air outlet.