What is the general pressure for adding refrigerant to a car air conditioner?

[ElleMarie]

Here is the pressure range for adding refrigerant to a car air conditioner: 1. When the compressor is running at 1500-2000 rpm, the high pressure should be around 1.5-2.0 MPa, and the low pressure should be around 0.15-0.35 MPa under normal conditions. The exact values depend on the matching of the air conditioning system in different vehicles and the ambient temperature. 2. In high ambient temperatures at idle, the high pressure may be slightly higher. The maximum high pressure can reach around 2.5-2.8 MPa, but it generally does not exceed 3.1 MPa. Below is some related knowledge about car air conditioner refrigerant: Car air conditioner refrigerant, commonly referred to as Freon, is known as "refrigerant" or "coolant" in the market. It is mainly used to measure the pressure values of the refrigerant at different stages of the system, allowing operators to monitor the equipment's operating status. Currently, the national requirement for the accuracy of refrigerant pressure gauges is to reach level 2.5.