The low pressure of the air conditioning fluoridation of Yutong bus is increased to about 1.5 to 2.5 kg, and the high pressure is increased to about 13.5 to 15.5 kg. What to pay attention to automotive air conditioning fluoridation:
1. Before vacuuming, the refrigerant that is not the same product must be completely replaced, otherwise the effect is not good.
2. When replacing air conditioning related parts such as compressors, high and low pressure pipes, dry bottles, etc., the pipe mouth should be sealed;
3. Check the leakage before filling the refrigerant, replace the disassembled sealing ring as much as possible, check the amount of refrigerated oil, and add if necessary;
4. Fill refrigerant quantity as required, with, - value range, not too much or too little.
5. Pay attention to the difference of refrigerant models, there are r12 (Freon) and r134a (environmental protection refrigerant)