Does Car Air Conditioning Refrigerant Recharge Require Vacuuming?
1 Answers
Car air conditioning refrigerant recharge requires vacuuming. The steps for refrigerant recharge are: 1. System vacuuming, 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 connector of the refrigerant tank; 3. Open the refrigerant tank, loosen the nut of the pressure gauge hose, allow some gas to escape, then close it; 4. Open the high-pressure side 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. Car air conditioning is used to adjust and control the temperature, humidity, air cleanliness, and air flow inside the car compartment to an optimal state. Its components include the refrigeration system, heating system, air purification device, and control system.