Course

Course Summary
Credit Type:
Course
ACE ID:
CNGE-0012
Organization's ID:
GES793
Organization:
Cengage Group/ed2go
Location:
Online
Length:
330 hours (12 months)
Dates Offered:
Credit Recommendation & Competencies
Level Credits (SH) Subject
Lower-Division Baccalaureate 3 Introduction to Refrigeration
Lower-Division Baccalaureate 3 Commercial Refrigeration Systems
Description

Objective:

This course is intended for those who are looking to obtain foundational air-conditioning knowledge as well as those who are exploring the possibility of enrolling in a more intense (A.A.S., certificate, or B.S.) program.

By course completion, learners will be fully prepared to sit for the HVAC Excellence Core and Professional Technician exams, the NATE Core and Specialty Test exams, and the EPA 608 certification exam.

Learning Outcomes:

  • Discuss safety issues that air conditioning and refrigeration technicians must concern themselves with in order to remain safe on the job.
  • Discuss the latest advances and trends in green technology.
  • Identify the four major system components and explain their functions in refrigeration and air-conditioning systems.
  • Explain the concepts of recovering, recycling, reclaiming, and retrofitting refrigerants.
  • Explain the concepts of recovering, recycling, reclaiming, and retrofitting refrigerants.
  • Describe the tools and equipment used to measure voltage, current, and resistance in electric circuits.
  • Explain the operation of heat-pump systems and chilled-water systems.
  • Demonstrate piping, zoning, and ductwork operations typically performed by the HVACR technician.
  • Troubleshoot electrical problems in refrigeration and air-conditioning systems.
  • Troubleshoot electrical and mechanical problems in heat-pump systems.
  • Explain the concepts of heat transfer, Btu, temperature, heat content, sensible heat, latent heat, pressure, gas laws, and work, and describe how they apply to air-conditioning and refrigeration systems.
  • Explain the concepts of air-conditioning theory, including indoor air quality, airflow and filtering principles, ventilation, and dehumidification.
  • Measure voltage, current, and resistance in electric circuits.
  • Construct series and parallel circuits.
  • Conduct a residential energy audit.
  • Describe the four basic components that make up the vapor-compression refrigeration cycle.
  • Explain the functions and desired characteristics of system refrigerants.
  • Discuss the EPA laws governing safe refrigerant handling and transport.
  • Describe the characteristics of electricity.
  • Explain Ohm's law.
  • Explain the differences between series and parallel circuits.
  • Describe the motors and controls commonly found on refrigeration and air-conditioning systems.
  • Properly leak test, evacuate, and charge refrigeration and air-conditioning systems.
  • Properly install a refrigeration and air-conditioning system and put them into operation.
  • Troubleshoot mechanical problems in refrigeration and air-conditioning systems.

General Topics:

  • Theory of Heat
  • Safety, Tools and Equipment, and Shop Practices
  • Automatic Controls
  • Electric Motors
  • Commercial Refrigeration
  • Air Conditioning (Heating and Humidification)
  • Air Conditioning (Cooling)
  • All-Weather Systems
  • Domestic Appliances
  • Commercial Air-Conditioning and Chilled-Water Systems
  • Soft Skills and the HVACR Technician
  • Simulation Challenges
Instruction & Assessment

Instructional Strategies:

  • Audio Visual Materials
  • Case Studies
  • Discussion
  • Laboratory
  • Practical Exercises
  • Project-based Instruction

Methods of Assessment:

  • Case Studies
  • Examinations
  • Performance Rubrics (Checklists)
  • Quizzes
  • Written Papers

Minimum Passing Score:

70%
Supplemental Materials