In HVAC systems, liquid and vapor will exist at the same time and place. We call that condition saturation, or we say that the refrigerant is “at saturation.” Phase changes occur in the evaporator and condenser, so these are spots where liquid and vapor coexist while the system is running. Saturated conditions occur whenever liquid […]

The old adage goes: “When all you have is a hammer, everything looks like a nail.”  For some techs I know, even having a hammer can be challenging. I was pretty new in business, and my first real “employee” hire in the HVAC part of Kalos was my brother, Nathan. Many of you know him, […]

In order to wrap my head around diagnostic issues, it helps me engage in thought experiments where I think of more extreme examples of an issue or situation or consider the ideal to find the “edges” of a concept. Once I find the extreme edges, I can begin to sort down to a more exact […]