Oct 03, 2024  
2021-2022 Course Catalog 
    
2021-2022 Course Catalog [ARCHIVED CATALOG]

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HCR 307 - Fundamentals of Refrigeration

Credits: 5
Lecture Hours: 2
Lab Hours: 6
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech
This course covers the principles of refrigeration, domestic systems and equipment.
Competencies
  1. Explain the principles of the refrigeration system
    1. Define what makes a good refrigerant
    2. Define the function of the four basic components of the refrigerant system
  2. Explain safety procedures in working with refrigeration systems
  3. Demonstrate those procedures
  4. Explain the relationship between gage pressure, absolute pressure and a vacuum
    1. Define gage pressure
    2. Define absolute pressure
    3. Define a vacuum
    4. Outline the relationship between gage pressure, absolute pressure and vacuum
  5. Identify the relationship between temperature, pressure, heat, and enthalpy
  6. Explain temperature
  7. Explain pressure
  8. Define heat
  9. Define enthalpy
  10. Define sensible and latent heat
  11. Distinguish between sensible and latent heat
  12. Determine the proper operating temperatures and pressures of a refrigeration system
  13. Successfully pass the EPA requirement test for Universal Certification
  14. Explain the correlation between outdoor ambient temperatures and condensing temperature
  15. Explain the correlation between the indoor or box temperature and evaporator temperature
  16. Demonstrate the ability to set the superheat of the thermostatic expansion valve
    1. Use an electronic thermometer
    2. Read a Temperature/Pressure Chart
    3. Read a pressure gage
  17. Install refrigerant gage-manifold assembly properly, using a service valve wrench
  18. Remove refrigerant gage-manifold assembly properly, using a quick disconnect coupler
  19. Demonstrate the proper methods to charge a system
  20. Demonstrate the ability to leak check a refrigeration unit, using
  21. Demonstrate the correct methods to braze and solder copper tubing
    1. Clean tubing and fittings
    2. Operate the torch set safely
  22. Identify mechanical and electrical malfunctions in a refrigeration system
  23. Solve problems with electrical test instruments
  24. Describe the failure or problem given a condition
  25. Correct the malfunction



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