What are pressure readings for r12 ac system?

Pressure readings for an R-12 AC system typically vary based on the ambient temperature and operating conditions. Generally, the low-side pressure should be around 28-36 psi, while the high-side pressure can range from 180-250 psi. These values can fluctuate depending on the specific vehicle and environmental conditions, so it's important to refer to the manufacturer's specifications for the most accurate readings. Always ensure proper service practices are followed when handling refrigerants.