HVAC 103 - Refrigeration I

1. Demonstrate safe practices and procedures with tools, refrigerants, torches, and test equipment covered in the course.
2. Define key terms associated with refrigeration such as superheated refrigerant, subcooled refrigerant, and saturated refrigerant.
3. Identify the basic components of mechanical refrigeration systems that were covered in the course.
4. Describe the basic refrigeration cycle identifying where the refrigerant is superheated, subcooled, saturated, under high pressure, and under low pressure.
5. Use a temperature/pressure chart to determine saturation temperatures and pressures.
6. Using data supplied, calculate/determine superheat, subcooling, evaporator coil TD, evaporator coil ΔT condenser split, saturated suction temperature and condensing temperature. [TD = EAT - BP where EAT is evaporator entering air temperature and BP is refrigerant boiling point temperature in the evaporator; ΔT = EAT - LAT where EAT is the evaporator’s entering air temperature and LAT is the evaporator’s leaving air temperature].
7. Explain the basic principles of heat transfer.
8. Demonstrate the proper use of refrigeration tools introduced in the course.
9. Demonstrate the fluxing, brazing, and/or soldering, flaring and swaging techniques introduced in the course.
10. Describe the operation/function of compressors, metering devices, condensers and evaporators.
11. Describe the use of vacuum pumps, manifold gauges and refrigerant recovery/recycling equipment.
12. Explain the basics of ozone depletion, the link between refrigerants and ozone depletion and the effects of ozone depletion.
13. Attain readiness to take the Esco EPA 608 Reclamation Certification exam.

CERTIFICATION STATEMENT:

Ivy Tech cannot guarantee that any student will pass a certification or licensing exam. Your success will be determined by several factors beyond the instruction you are given in the classroom including your test-taking skills, your willingness to study outside of class, and your satisfactory completion of appropriate practice exams. Certification and licensure exam questions are drawn from databases of hundreds of possible questions; therefore, a thorough understanding of the subject matter is required. Ivy Tech’s coursework is designed to assist you in understanding the material sufficiently to provide a firm foundation for your studies as you prepare for the exam.

COURSE CONTENT: Topical areas of study include -  

• Basic principles of heat transfer
• Gas Laws
• Mechanical refrigeration cycle
• Refrigeration and A/C terminology
• Major components of a mechanical refrigeration system [compressors, metering devices, condensers, and evaporators]
• Additional refrigeration and A/C system components such as filter/driers, solenoid valves, liquid receivers, suction line accumulators, and check valves
• Safety procedures for the use of refrigerants, refrigeration tools and torches
• Working with copper [swaging, flaring, soldering and brazing]
• Superheat, subcooling, evaporator coil TD, evaporator coil, condenser split, saturated suction temperature [evaporator boiling point temperature] and condensing temperature
• Introduction to refrigerant recovery and charging
• System evacuation
• Refrigeration access valves
• Manifold gauge sets
• Using a temperature/pressure chart
• Ozone depletion, basics of EPA regulations and CFC, HCFC and HFC refrigerants
• A/C installation basics

 
GRADING POLICY

 
Course Addendum - Syllabus (Click to expand)