What is the general pressure for car air conditioning pressure testing?

1 Answers
VanMadison
07/29/25 3:04pm
Car air conditioning pressure testing is generally performed with low-pressure charging, within 15 kilograms, but it is best to charge both high and low pressure simultaneously. This prevents the low-pressure gas from being unable to enter the high-pressure pipeline if the dryer bottle becomes blocked. When charging both high and low pressure, it is necessary to monitor the pressure on the high-pressure gauge because the low pressure has already been fully charged. The pressure in a car air conditioning system is influenced by various external conditions, such as ambient temperature, engine speed, and the cooling conditions of the condenser. Therefore, the standard for testing the pressure of a car air conditioning system is based on a specific ambient temperature, compressor speed within a certain range, and condenser cooling under certain conditions, rather than a fixed standard.
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