How Often Should Car Air Conditioning Refrigerant Be Replenished?
1 Answers
Car air conditioning refrigerant should be replenished every 5 years. The process of replenishing is as follows: 1. Evacuate the system, close the manual valves on the pressure gauge and the high and low pressure manual valves; 2. Connect one end of the hose to the injection valve joint of the refrigerant tank; 3. Open the refrigerant tank, loosen the nut on the pressure gauge hose, allow some gas to escape, then close it; 4. Open the high-pressure side manual valve and invert the tank; 5. Inject the specified amount of liquid refrigerant, then close the refrigerant injection valve and the high-pressure manual valve. Methods to determine if the car air conditioning refrigerant is insufficient include: 1. When the air conditioning is operating normally and continuously, if there are continuous bubbles in the sight glass, it indicates insufficient refrigerant; 2. When the air conditioning is operating normally and continuously, if there are no bubbles in the sight glass, but brief bubbles appear when the air conditioning stops, it indicates the refrigerant level is normal.