Car air conditioner vacuuming is high pressure or low pressure

Whether the vacuuming of the car air conditioner is low pressure or high pressure is a question that many car owners want to know. Why do car air conditioners need to be vacuumed? Because the air contains a lot of non-condensable gas and moisture, the non-condensable gas and moisture cannot be dissolved into the refrigerant, and will affect the operation effect of the air conditioner. Therefore, the purpose of vacuuming the air conditioner is to improve the cooling effect and operating efficiency of the air conditioner by removing non-condensable gases and moisture.

As for whether the vacuuming of the car air conditioner is low pressure or high pressure, it is related to the specific car model and air conditioning system, and it needs to be determined according to the actual situation. In fact, both low pressure and high pressure are acceptable. If you want the effect of evacuation to be more significant, you can also perform vacuuming at both low and high pressure. When carrying out the vacuuming operation of the air conditioner, it is also necessary to pay attention to the correct operation, and it is recommended to hand it over to professional technicians. Generally, the best pumping value of automobile air conditioners is 98.7 to 99.9kpa. After the car air conditioner is vacuumed, the refrigerant can be added.

It should be noted that the amount of refrigerant added should also be carried out according to the label of the vehicle air conditioner. If the vehicle has undergone maintenance and replacement of air-conditioning pipes and compressors, it is also necessary to complete the vacuuming operation before adding refrigerant, so as not to affect the cooling effect of the air conditioner and the life of the compressor.