What is the normal pressure value for car air conditioning?

1 Answers
Aragorn
07/30/25 10:57am
Under normal operating conditions of the air conditioning system, the low pressure typically ranges between 1.0-2.5 bar, while the high pressure ranges between 15-18 bar. Below are specific details about car air conditioning pressure values: 1. The normal range for car air conditioning pressure detection is generally that the high pressure should not exceed 1.7 MPa or be lower than 1.3 MPa. 2. The normal range for low pressure is generally not lower than 1.15 MPa and not higher than 1.25 MPa. If the low pressure is higher or lower than this normal range, it indicates abnormal expansion valve adjustment. 3. The air conditioning gauge usually has two dials: a blue one for low pressure and a red one for high pressure. If the ambient temperature is higher, the pressure should be slightly higher, and if the ambient temperature is lower, the low pressure should also be appropriately lower.
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