Academic Catalog

APPR 185A: BASIC REFRIGERATION FOR SHEET METAL AIR CONDITIONING SERVICE

Foothill College Course Outline of Record

Foothill College Course Outline of Record
Heading Value
Units: 4.5
Hours: 30 lecture, 78 laboratory per quarter (108 total per quarter)
Prerequisite: Per California Code of Regulations, this course is limited to students admitted to the Sheet Metal-Air Conditioning Service Mechanic Program.
Degree & Credit Status: Degree-Applicable Credit Course
Foothill GE: Non-GE
Transferable: None
Grade Type: Letter Grade (Request for Pass/No Pass)
Repeatability: Not Repeatable

Student Learning Outcomes

  • A successful student will be able to demonstrate the use of refrigeration gauges.
  • A successful student will be able to describe and use high vacuum evacuation equipment in a refrigeration circuit.

Description

Introduction to the use of refrigeration evacuation service equipment, charging refrigeration systems, and to the use of oxy-acetylene brazing equipment.

Course Objectives

The student will be able to:
A. Demonstrate knowledge in reading refrigeration gauges and charging refrigerant.
B. Describe and use high vacuum evacuation equipment.
C. Assemble refrigerant piping using acetylene torch equipment.

Course Content

A. Demonstrate knowledge in reading refrigeration gauges and charging refrigerant
1. Review of refrigerant cycle
2. Definition of the British thermal unit
3. Interpretation of sensible and latent heat
4. Verify refrigerant charge
5. Diagnosing refrigerant leaks; locating and correcting cooling problems
6. Charging a refrigeration system
B. Describe and use high vacuum evacuation equipment
1. Evacuation procedures and techniques
2. Importance of removing moisture from refrigeration systems
3. Evaluation of vacuum service equipment
C. Assemble refrigerant piping using acetylene torch equipment
1. Safe uses of oxy-acetylene and other brazing equipment

Lab Content

A. Practice in using refrigerant gages and other instruments to evaluate refrigerant charge
B. Practice in properly evacuating and charging refrigerant systems
C. Preparation and practice in safely using torches to braze and solder refrigerant piping

Special Facilities and/or Equipment

Laboratory equipped with air conditioning equipment.

Method(s) of Evaluation

A. Results of written quizzes and tests, and comprehensive written final examination
B. Shop participation
C. Assignments that may include outside readings, reports and worksheets
D. Maintenance of a workbook of student's daily work activities

Method(s) of Instruction

A. Lecture
B. Discussion
C. Laboratory
D. Demonstration

Representative Text(s) and Other Materials

Whitman, B., B. Johnson, J. Tomczyk, and E. Silberstein. Refrigeration and Air Conditioning Technology. Delmar, Cengage Learning, 2009.

International Training Institute for the Sheet Metal and Air Conditioning Industry. Service Work Lab Manual. IDI Multimedia, 2008.



NOTE: These are the standard Sheet Metal textbooks/workbooks used for this course. Although they may not be within 5 years of the required published date, they are the most current books used when teaching this course.

 

Types and/or Examples of Required Reading, Writing, and Outside of Class Assignments

A. An example of a reading assignment is to read Lesson 3 of the Servicing Environmental Systems text, "Measuring Refrigeration Cycle Vital Signs"

B. An example of a written assignment is to answer the review questions at the end of Unit 7, "Tubing and Piping," in the Refrigeration and Air Conditioning Technology text.

 

Discipline(s)

Air Conditioning, Refrigeration, Heating