The relationship between refrigerant pressure and temperature is a core data point with performing diagnostics on any refrigeration system. This lecture demonstrates how to read and interpret a Temperature/Pressure chart that we will use in the following lessons. 

In order to diagnose problems in a refrigeration system, the technician must be able to accurately measure operating pressures. This lecture provides the technician with solid basics on the types of pressure measurements systems available. 

As with reading pressure (in Lecture #4) reading temperature accurately also very important. This lesson provides the technician on information the type of temperature measurement system needed to perform refrigeration system diagnostics.  

Now with you have a basic understanding of the key refrigeration system components, the refrigeration cycle, the relationship between refrigerant pressure/temperature and the tools you need, its time to start the process of learning solid refrigeration diagnostic skills. 

Similar to the human body, you can't see inside of a refrigeration system. You can however take specific readings such as Super Heat to determine performance issues within the refrigeration cycle. Super Heat calculations demonstrated in this lesson will  focuse on the evaporator (or heat absorption) side of the refrigeration cycle.