Here's something you may not have thought about before: how do you test the efficacy of an air conditioner? Air conditioners are surprisingly complex pieces of technology, as they need to carefully ...

Designed for use in charging and evacuating systems, the DM 4-3 4 valve digital manifold combines a superheat/subcooling gauge with a four-valve charging and testing manifold and temperature gauge.

In principle, air conditioners and refrigeration units don't produce cold air. These systems transfer heat from one place to another and therefore reduce temperature in a confined area (passenger ...