This course is an introduction to basic refrigeration systems. Topics include terminology, the refrigeration cycle, safety, refrigerants, lubricants, and environmental issues. Presents applications of HVAC components, refrigeration controls, condensers, heat exchangers, dampers, blowers, and compressors. Use common and high tech tools of HVAC industry to aid in preventive maintenance/repair. Use of virtual interactive troubleshooting programs to reinforce troubleshooting skills. Reinforce documentation of work procedures and complete refrigerant tracking reports. Cover in depth existing and newly developed refrigerants. The learner will operate, evacuate, charge and repair basic refrigeration units.