Information: Name: R22 Refrigerant for Household Air Conditioning Adding Car Air Conditioning Tool Kit Supported Refrigerant Gas Meter Note: Don't use too much force when charging the bottle opener. This will deform the rubber pad inside the bottle opener and the gas will not come out. Tighten with normal force. If refrigerant is added, the pressure gauge indicator is about 8-13, that is, the air conditioning compressor is not working and the air conditioner needs to be checked.1. The air conditioner can be in cooling state normally. Do the two external connectors have water drops when the air conditioner runs for a while? Yes, normal.2. Open the inner cover, remove the filter, the inside of the copper pipe has water drops, normal; White mroacute;z. R22 filling pressure value: spoacute; look at the outermost wheel (0-15) black dial number, add pressure to 4-5 pressure! R134A filling pressure value: spoacute; look at the outermost wheel (0-15 ) black dial number, add pressure to 2.5 pressure! Instructions: 1. Set the air conditioner to cooling mode and the temperature to the lowest.2. Check if the air conditioner is working properly.3. Check if the compressor starts normally.4. After checking, connect the fluoride-adding equipment to the side of the low-pressure air conditioner.5. Check your blood pressure. If it is not normal, please repair it. Packing list: 466 inch fluorine addition meter * 1 fluorine addition tube * 2 adapter * 1 universal bottle opener * 1