Where can I get Freon Charts for commercial vehicles?

Answer 1

If you're talking about temperature/pressure relationship charts, they're no different than they are on a standard vehicle. If you're recharging the system on a Class 8 truck, you're not going to find any such chart, because there isn't one set amount for each type of truck.. various applications will require different tonnage systems, so you could have two trucks in the exact same configuration, but one which was shipped to a desert environment and one which was shipped to a subarctic one, and the systems they use can vary greatly, as can their refrigerant capacity. If you're not sure, you can call the parts department of a dealership, give them the last six digits of the VIN, and they can tell you how much it needs.