Refrigerants and Refrigerant Oils
Covers the physical properties of refrigerants, including pressure-temperature relationships. Discusses various kinds of refrigerant and their safe handling. Examines the effects of refrigerants on the atmosphere and related EPA requirements. Discusses filters, driers, leak detection equipment, gauge manifold set. Explains system charging, evacuation and dehydration, refrigerant recovery/recycling, and oil maintenance and servicing. This course has no prerequisites. Refrigerants and Refrigerant Oils is available in online maintenance training and course manual formats. Lesson 1 - Physical Properties of Refrigerants Topics: Pressure-temperature relationship; Enthalpy; Pressure-enthalpy diagrams; Liquid subcooling Learning Objectives: – Explain the relationship between pressure and boiling point in a liquid. – Define the term enthalpy, and differentiate between the enthalpy of saturated liquid, the enthalpy of evaporation, and the enthalpy of saturated