Retrofitting an older Subaru A/C system to ozone-friendly R-134a refrigerant makes good sense, especially when other A/C repairs are necessary. Here, we detail the factory-recommended retrofit procedures.
How does air conditioning cool the interior of a vehicle on a hot day. Like a lot of things, it all comes down to basic science. That’s why a good understanding of air conditioning theory begins with the Basic Principles of Heat Transfer.