Latest / HVAC School - For Techs, By Techs
What is DX? - Short #185
In this short podcast episode, Bryan tackles the following question: What is DX?
In short, DX stands for "direct expansion," which means that you cool the end product via the refrigeration cycle. We blow air over an evaporator coil, which allows the refrigerant to take up heat from the air and directly expand. Chillers, boilers, and chilled water systems are NOT direct expansion systems; they use a secondary fluid like water or glycol to move the heat throughout the structure, not an evaporator to take up heat directly. They also have heat exchangers to move heat from the refrigerant to the…
The skinny
The skinny isn't ready yet — notes appear once the transcript is processed.