ENT-105: Introduction to Refrigeration, Air Conditioning, and Heating (RACH)

Business, Entrepreneurship, & Professional Development
Energy Technology
Academic Level
Course Subject
Energy Technology
Course Number
Course Title
Introduction to Refrigeration, Air Conditioning, and Heating (RACH)
Credit Hours
Instructor Contact Hours Per Semester
62.00 (for 15-week classes)
Student Contact Hours Per Semester
62.00 (for 15-week classes)
Grading Method
Catalog Course Description

Introductory course in refrigeration, air conditioning, and heating (RACH) covering refrigeration components and operation of those components, the refrigeration charging and recovery process, and provides an orientation related to jobs in service and maintenance. Labs involve installing copper tubing, using test instruments, tools, and a variety of equipment.

Goals, Topics, and Objectives

Goal Statement
  • To better help studies apply knowledge to the Heating and Cooling, Alternative Energy, Multi-skilled Facility Maintenance and Power Engineering Basic Certificates, Advanced Certificates, or Associate Degree.
  • To help students learn the refrigeration system components and their operation.
  • To help students demonstrate the refrigeration system charging and recovery process.
Core Course Topics

Upon successful completion of this course, students should be able to:

  1. Refrigeration systems
  2. Refrigeration systems components
  3. Psychometrics
  4. Latent and sensible heat
  5. Refrigerant identification
  6. Charging and recovery of refrigerants
Core Course Learning Objectives (Separated)
  1. Describe and explain the basic Refrigeration System.
  2. Describe and explain the purpose of the basic Refrigeration Components.
  3. Explain the process of the basic Refrigeration Cycle.
  4. Explain the difference between Sensible and Latent Heat.
  5. Describe the different refrigeration and heating systems, refrigerators, window units, and split systems.
  6. Demonstrate an understanding of refrigeration compound gages.*
  7. Explain and be able to perform refrigeration recovery/recycling.
  8. Explain what refrigeration accomplishes (dehumidification and cooling).
  9. Determine/demonstrate/identify refrigerant states pressures and temperatures at various points in the refrigeration system per assigned refrigerant exercise and standardized final exams.*

Assessment and Requirements

Assessment of Academic Achievement
  1. Tests will be given throughout the semester. Test scores represent 20% of the course grade.
  2. Laboratory activities are 20% of the grade; leaving early relates to major deduction of this grade.
  3. Final exam will be given, which will represent 20% of the course grade.
  4. Attendance is accounted for 20% of the grade. Absences from class will result in a deduction of the final grade.
  5. Term paper -- 20 % of the course grade.

Approval Dates

Effective Term
Fall 2016
ILT Approval Date
AALC Approval Date
Curriculum Committee Approval Date