<p> HIBBING COMMUNITY COLLEGE COURSE OUTLINE</p><p>COURSE TITLE & NUMBER: Residential Refrigeration: HCT 1510 CREDITS: 2 (0 Lec / 2 Lab) PREREQUISITES: HCT 1500, HCT 1505</p><p>CATALOG DESCRIPTION:</p><p>Residential refrigeration technology covers residential refrigeration systems, refrigerants, electrical components, refrigeration system construction, proper methods of evacuation and charging. Procedural troubleshooting and repair skills for electrical and sealed system repair of domestic refrigerators and freezers. </p><p>OUTLINE OF MAJOR CONTENT AREAS:</p><p>I. Refrigerator/Freezer A. Component identification B. Component location C. Component function D. Types of condensers E. Types of evaporators F. Types of compressors G. Methods of defrost H. Wiring diagrams interpretation I. Types of relays II. Troubleshooting of equipment A. Proper flow of paperwork B. Diagnostic procedures C. Physical replacement of components D. Methods of evacuation E. Methods of charging F. Recording & Billing procedures G. Recovery of Refrigerant</p><p>HCT1510 1</p><p>Hibbing Community College, a technical & community college, is an equal opportunity educator & employer COURSE GOALS/OBJECTIVES/OUTCOMES:</p><p>Students will: 1. interpret detailed instruction for wiring circuits. 2. identify principles of solid state relays. 3. define & explain the use and function of current relays. 4. define & explain the use and function of defrost timers. 5. differentiate between the two types of defrost systems. 6. explain the operation of a capacitor start, capacitor run type motor. 7. explain the operation of shade pole motor. 8. explain the function of the defrost termination thermostat. 9. describe the refrigeration cycle for household refrigerators. 10. explain the method of defrost water drainage. 11. explain air circulation within the refrigerator cabinet. 12. measure pressures with a refrigeration manifold gauge set. 13. analyze the causes of frost build up on evaporator coil. 14. demonstrate proper usage of a direct start kit. 15. develop a written estimate for repair. 16. wire actual electrical circuits using wiring diagrams. 17. charge a refrigeration system to manufacturers specifications. 18. determine refrigerant amount and type. 19. use nitrogen with a trace gas to locate a leak. 20. demonstrate brazing technique using a nitrogen purge. 21. check leaks using a soap bubble solution. 22. check for leaks with an electronic leak detector. 23. determine if door gaskets are sealing properly. 24. change compressor on a domestic refrigerator. 25. test compressor winding for a shortened/open/grounded circuit. 26. identify start, run and common terminals on compressor. 27. describe the characteristics of a accumulative run type defrost timer. 28. address the importance of keeping the condenser clean. 29. record the fresh food and freezer temperatures using data loggers. 30. determine the correct head pressure for a sealed system. 31. describe the various styles of domestic refrigerator. 32. identify various parts of a domestic refrigerator. 33. perform a diagnoses and repair of a defrost problem. 34. demonstrate the ability to properly follow the flow of refrigerant. 35. explain how thermistors operate as temperature controls.</p><p>HCT1510 2</p><p>Hibbing Community College, a technical & community college, is an equal opportunity educator & employer MNTC GOALS AND COMPETECIES MET: N/A</p><p>HCC COMPETENCIES MET: </p><p>Working Productively and Cooperatively Thinking Creatively and Critically</p><p>STUDENT CONTRIBUTIONS:</p><p>The student is expected to attend all lectures and working sessions, participate in activities and discussion, listen to and follow direction, complete assignments on time and request assistance when needed. Each student is expected to spend the necessary time to become adept at the procedures and their applications. At all times the student is expected to demonstrate and exercise safety skills and procedures.</p><p>STUDENT ASSESSMENT SHALL TAKE PLACE USING INSTRUMENTS SECLECTED/DEVELOPED BY THE COURSE INSTRUCTOR.</p><p>SPECIAL INFORMATION: (SPECIAL FEES, DIRECTIVES ON HAZARDOUS MATERIALS, ETC.)</p><p>AASC APPROVAL DATE: March 20, 2013</p><p>REVIEW DATE: March 2018</p><p>HCT1510:so 032013</p><p>HCT1510 3</p><p>Hibbing Community College, a technical & community college, is an equal opportunity educator & employer</p>