Gac Hechuang z03 plus R134 snow
The correct operation method of charging refrigerant, suppress to 120 to detect leakage, wait for 20 minutes to see whether the pressure gauge drops, such as normal pressure and vacuum, pumped to the lowest negative number can be filled with refrigerant, first vent and then shake the air conditioning, the car to open the air conditioning, check whether the compressor is suction, electronic fan rotation is normal, general low pressure pipeline charging 500 grams on the line.