1. Job safety & health 2. Use and care of tools 3. Rigging and signaling 4. Pipe materials, fittings, valves, hangers, supports, and fasteners 5. Soldering, brazing, threading, and make up

1. Principles of refrigeration 2. Heat transfer 3. Refrigerants, properties, and characteristics 4. Defrost Systems, Hot Gas, Electric & Off time 5. Oil system types, operation, diagnostics 6. Leak detection 7. Compressors & condensers 8. Evaporators, metering devices, desiccants, and dryers 9. Refrigeration system piping 10. Refrigeration system operating and safety devices

1. Basic electricity 2. Testing and recording instruments 3. Wiring diagrams and circuits 4. Switches, controls, and internal components 5. Solid state fundamentals 6. Installation, testing, and trouble shooting