How much is the appropriate amount of car air conditioning refrigerant


Automobile air-conditioning refrigerants are also calle […]

Automobile air-conditioning refrigerants are also called automobile refrigerants. Automobile refrigerants are commonly called refrigerants and ice types. They are classified into environmentally friendly (134a) and non-environmental (R12 is rarely used in car models). The refrigerant used in the automobile refrigeration system generally needs to be filled with refrigerant when the summer arrives. The following two problems should be paid attention to when supplementing the refrigerant: one is the problem of non-interchangeable refrigerants, and the other is vacuuming problem.

There are currently two main types of Car Refrigerant charging pipe, one is R12 and the other is 134a (HFC-134a). R12 has a long history and is widely used, but chlorine molecules can destroy the ozone layer in the atmosphere and cause the greenhouse effect. A few years ago, representatives from all over the world gathered in Montreal to sign the protocol, stipulating that the production and use of Freon products should be stopped in recent years, of which R12 bears the brunt. 134a is a product that started to be used in the 1990s. As the non-chlorine molecules have no damaging effect on the ozone layer, there are few changes to the car air conditioning system. Now many new car air conditioning systems at home and abroad use 134a refrigerant.

Filling amount of different models

Vehicles with displacement below 1.6L (500g-750g) 2 bottles

1.6L-3.0L vehicles (750g-1000g) 3 bottles

4 bottles for vehicles with displacement above 3.0L (1000g-1250g)

The specific filling amount is subject to the mark of the vehicle compressor or the pressure gauge.

Generally speaking, the automobile air conditioning system is composed of many metal pipes, and there are small gaps between the pipes. Therefore, the refrigerant in the air conditioning system is leaking in the strict sense. However, the leakage is generally very small. The cooling effect has little effect. However, when the amount of refrigerant in the air conditioning system is reduced to a certain level, it will lead to insufficient air conditioning.

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