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CCOG for APR 131 Fall 2022

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Course Number:
APR 131
Course Title:
Refrigeration I
Credit Hours:
Lecture Hours:
Lecture/Lab Hours:
Lab Hours:

Course Description

Covers refrigeration principles and different basic cycles which include heat transfer, temperature, and basic physics and gas laws. Lab includes the use of tools and instruments used for charging and evacuation and recovery methods. APR 131 and FMT 101 both cannot be taken for credit. Prerequisites: MTH 20; (WR 90 or IRW 90 or ESOL 262); (RD 90 or IRW 90 or ESOL 260). Audit available.

Intended Outcomes for the course

Explain types of heat and heat movement, pressure/temperature relation-
ships, Celsius and Metric terms, and pressure calculations and terms.
Explain physics used refrigeration, magnetism, work energy, electrical
power, and the British Thermal Unit.
 Demonstrate knowledge of the history of how refrigeration was developed
and rated, refrigeration process, pressure/temperature relationships,
components, refrigerant characteristics, recovery of refrigerant, and
plotting the cycle.
Explain which tools and instruments are used, demonstrate how to use
them, and explain the advantages and disadvantages.
Explain the various fasteners used in the industry.
 Demonstrate knowledge of refrigeration tubing, working with tubing,
soldering and brazing, and heat sources.  Lab practice working with
tubing, flaring, swaging, soldering, and bending.  Discuss steel and wrought
iron pipe, joining pipe, and plastic pipe.
 Explain purpose of system evacuation, theory involved, and measuring
vacuum.  Discuss vacuum pumps, deep vacuum, multiple evacuation, leak
detection, and refrigerant recovery.  Discuss moisture, procedures, Schrader
valves, and gauge hoses.  Discuss system valves and use of dry nitrogen.
 Discuss various ways of charging a system.
 Demonstrate the ways and needs of instrument calibration.
 Discuss the various dangers pertaining to the refrigeration industry.

Course Activities and Design

Class activities are comprised of lecture, discussion, and teaching aids.  Laboratory activities include use of tools, instruments, and training units.  Students required to work on training units and to guild soldering project.  Safety in the workplace will be stressed. 


Outcome Assessment Strategies

Procedures will be discussed at the first class session and the instructor's grading policy will be referenced on the class syllabus.  Assessment will be based on attendance, weekly quizzes, and the final examination.

 A Pass - No/Pass grading option is not available for any APR (Apprenticeship) course.