What is the normal pressure range for car air conditioning?

[HoldenDella]

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. Additional information: 1. Normal pressure range: The standard range for car air conditioning pressure is generally that the high pressure should not exceed 1.7 MPa or fall below 1.3 MPa, while the low pressure should normally be no lower than 1.15 MPa and no higher than 1.25 MPa. If the low pressure is higher or lower than this normal range, it indicates improper adjustment of the expansion valve. 2. Evaporator wear: The car air conditioning evaporator, fan, and other components are often in a closed and dark state, creating a high-temperature and humid internal environment. Impurities, dust, bacteria, and viruses from the air enter the air conditioning system and combine with condensed water, clogging components such as the evaporator. Over time, this leads to the accumulation of dirt, nicotine, mold, fungi, and other contaminants.