AUSTIN COMMUNITY COLLEGE Heating, Air Conditioning & Refrigeration Technology HART1407 REFRIGERATION PRINCIPLES

00 Syllabus

(Rev. 01/06/2014)

Course Title: Refrigeration Principles; 4 semester credit hours Course Level: introductory Course Description: an introduction to the refrigeration cycle, basic thermodynamics, heat transfer, temperature/pressure relationship, safety, refrigerant containment, and refrigeration components. Learning Outcomes: the student will identify the components and explain the application and operation of the basic refrigeration cycle; explain the theories of thermodynamics and heat transfer; demonstrate proper application and use of tools, test equipment, and safety procedures; and demonstrate accepted refrigeration applications. Textbooks/Materials: Modern Refrigeration and Air Conditioning ISBN: 1-59070-280-8; store at the riverside ACC bookstore. Course packet sold in the HART Department. Tools/equipment: provided. Dress: casual work attire How the course is presented: Refrigeration Principles is a series of lessons that are computer and textbook based theory learning, and hands-on skills applications. Your instructor will present videos and conduct discussions and demonstrations. This packet contains the course syllabus including a progress record and all the lessons for this course. For loss protection, your legal photo I.D. will be required to use CD-ROM’s in the classroom or the LRS computer lab. Replacement cost for each title is hundreds of dollars! An ACC Student I.D. is required each semester to access the campus library (LRS). Lab Policy: • a class must be in session for any lesson or other work requiring power is performed • shop clean up begins at least 10 minutes before end of class. All lab work should stop at that time. A student must clean up spills or mess he creates and remove trash • students must pass the welding tests before using torches • students must wear safety glasses or goggles when using grinder, drill, brazing, brazing, soldering or working with refrigerant. Grading Policy: Grade of A - an average grade of 90% to 100% Grade of B - an average grade of 80% to 89.9% Grade of C - an average grade of 70% to 79.9% Grade of D - an average grade of 60% to 69.9% Grade of F - an average grade below 60% To receive a grade of A, B, C or D, the student must complete all tests. Lessons that receive a grade but not completed will be figured into the course grade average with a grade of zero.

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Grade of I (Incomplete): students may receive a grade of “I” if the student has no unexcused absences and has completed at least 75% of the required course work. The student must meet with the instructor and request the grade of incomplete. Grade of W (Withdrawal): when a student is unable to complete the course and does not qualify for a grade of "I", the student should consider withdrawing from the course. It is the student's responsibility to initiate withdrawal procedures. Do not rely on the instructor to perform this service for you. If a student stops attending, or otherwise fails to complete the course, and does not withdraw, the student may receive a grade of F. Absences: your instructor may initiate withdrawal procedures and assign a grade “W” if you accumulate as many as four unexcused absences. Absences can be made up-your instructor will work with you in arranging to make up absences. To make up an absence, you must attend a class other than the one you are registered in. You should request permission of the instructor whose class you wish to attend. At the close of the class, present the instructor with a "Class Attendance Form". Have the form filled out so that the instructor need only sign the form. Return the signed form to your official instructor. Excused Absences: verifiable family emergencies, illness or hospitalization constitute excused absences. A prolonged illness or situation which will prevent attendance of many classes may require the student to withdraw rather than receive a grade of “I”. These situations should be discussed with your instructor. Progress Record: lists each lesson title, the sequence of lessons in the course, which lessons receive grades, and where tests are given. A scoring formula is included to compute the grade you will earn in the course. Lessons are to be submitted upon completion unless required for test preparation. Theory lessons have an answer key for you to check before submitting the work. Answer keys are reserved for HART students at the main desk of the Riverside Campus Library only. Present your student I.D. and legal photo I.D. at the library main desk. I.D.’s will be returned when the answer key is returned. Lessons to be graded do not have an answer key available to you. Your instructor will grade these. All lessons will be returned at the next class meeting. Notes: keep all of your course material in a 3-ring binder and bring all lessons with you each class. Many lessons build upon the foundation of prior lessons and must be available for immediate reference. All items brought to class (textbook, multimeter, etc.) should also have your name attached. Absences: if you unable to attend class, because of work or illness, etc., or you need extra assistance in completing the course work, talk to your instructor. He will not be very receptive to your problems if you say nothing until the last week of the semester. Testing: tests will be given as you progress thru each course. Be sure to check with your instructor for his specific testing requirements. The tests may be multiple choice, true or false, or fill-in-the-blank type questions. Performance of skills may also be required. C all tests are to be taken during your normal scheduled assigned class times C all tests are to be administered only by your assigned instructor C tests are to be turned in at the end of the scheduled class, regardless if it is completed or not

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What Each Test Covers: each section test covers the material presented since the previous section test. The final exam covers the entire course. This course and the following Air Conditioning courses are highly technical. Because of their technical nature, technical terms must be used. It is important that you learn the meaning of the technical terms and use them correctly. Misinterpretation or misuse of the terms can result in your work begin graded "incorrect." Study Tips: review completed lessons regularly until you can anticipate each question and answer. Importance of Good Grades: the grade you earn in this and any other courses you take are recorded on your transcript. You must maintain passing grades to be allowed to continue in college. A grade of F must be offset by a grade of A to average a "C" (assuming equal credit hours in each course). If you are unable to complete this or any other course, you should withdraw from the course. A grade of W is not used to calculate your grade point average (GPA). Improving Your Grade: the minimum acceptable grade for skill (hands-on) lessons is 70. These type lessons with grades below 70 can be repeated. Your new grade will be calculated by averaging the two scores, the final grade will not exceed 70. The HART Program considers skill levels below a “C” to be unemployable and therefore require improvement. State of Texas License: the Texas Legislature has passed a bill authorizing state licensing of Air Conditioning/Heating personnel. The license became mandatory in January 1986. Cities presently requiring licensing may elect to continue or discontinue municipal licensing. If a municipality continues their licensing, the work can be done within that municipality with only the city license. The State License authorizes work anywhere within the state, regardless of city licensing. The state requires a minimum of three years experience before applying for the state examination for licensing. The state recognizes time in the ACC HART courses as credit toward work experience. Since their rules are subject to change, contact the Department of Licensing and Regulation for complete information. The telephone number is: (512) 463-5522. L.P. Gas License: a separate license is required for anyone working on liquid petroleum (L.P.) systems such as butane or propane. The license is issued through the Texas Railroad Commission. Their telephone number is: (512) 463-6931. Federal Requirement for Technician Certification: In April, 1993 the Environmental Protection Agency approved the final rule on refrigerant recovery and recycling. The final rule includes mandatory technician certification. The certification includes four levels; Type I - for servicing small appliances Type II - for servicing or disposing of high or very high pressure appliances Type III- for servicing or disposing of low-pressure appliances Universal Certification is awarded to technicians that achieve Types I, II, and III. This certification is obtained by passing an examination approved by the EPA. Seminars, are provided by various agencies. The seminars prepare you to take the exam.

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General academic and workforce skills necessary for entry-level employment for all American workers are the topic of a 1990 report by the Secretary of Labor's Commission on Achieving Necessary Skills (SCANS). Those skills applicable to Electricity Principles are listed here. The State of Texas Higher Education Coordinating Board requires they be included in our curriculum. They are as follows: SCANS Competencies for HART1407 Refrigeration Principles Refrigeration Principles

HART-1407

Refrigeration Principles

HART-1407

1.0 Resources

5.0 Technology

1.1 Manages Time

5.1 Selects Technology

1.2 Manages Money

5.2 Applies Technology to Task

1.3 Manages Materials and Facility Resources

5.3 Maintains and Troubleshoots Technology

1.4 Manages Human Resources

6.0 Basic Skills

2.0 Interpersonal

6.1 Reading

X

6.2 Writing

X

2.2 Teaches Others

6.3 Arithmetic

X

2.3 Serves Clients/Customers

6.4 Mathematics

X

2.4 Exercises Leadership

6.5 Listening

X

2.5 Negotiates to Arrive at a Decision

6.6 Speaking

X

2.1 Participates as a Member of a Team

2.6 Works with Cultural Diversity

X

X

3.0 Information

7.0 Thinking Skills 7.1 Creative Thinking

3.1 Acquires and Evaluates Information

X

7.2 Decision Making

3.2 Organizes and Maintains Information

X

7.3 Problem Solving

3.3 Uses Computers to Process Information

X

7.4 Mental Visualization

X

7.5 Knowing How to Learn

X

7.6 Reasoning

X

4.0 Systems 4.1 Understands Systems

X

4.2 Monitors and Corrects Performance

8.0 Personal Qualities

4.3 Improves and Designs Systems

8.1 Responsibility

X

8.2 Self Esteem

X

8.3 Sociability

X

8.4 Self-Management

X

8.5 Integrity/Honesty

X

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The Air Conditioning and Refrigeration Institute (ARI) has identified certain professional knowledge and skill competencies for the Heating, Air Conditioning and Refrigeration Technology industry. Those competencies are listed in each appropriate lesson. Here are the categories those competencies fall under. Professional Service-Character Education Introduction to Air-Conditioning Matter and Heat Behavior Fluids and Pressure Refrigeration Cycle/Diagrams Measurement Systems Safety-Handling of Pressurized Fluids Handling of Hazardous Substances Hand Tools and Accessories Refrigerant System Components: Metering Devices, Evaporators, Compressors, Condensers Refrigerant Recovery: Introduction and Safety Refrigerants and Lubricants Regulations

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HART1407 Refrigeration Principles - Progress & Evaluation Record Name

ID

Lesson

Synonym

Title

Semester

Date

1

Introduction to Refrigeration Theory (computer)

2

Safety

3

Introduction to Air Conditioning (video)

4

Temperature & Pressure Zones of an Air Conditioner (lab)

5

Fundamentals of Air Conditioning (video)

6

Properties of Matter and Heat (lab)

7

SECTION TEST 1 - REFRIGERATION THEORY

8

Fluid Pressure and Gas Laws (video)

9

Fluid Pressure Behaviors (lab)

10

Refrigeration Basics, Fundamental Principles (computer)

11

SECTION TEST 2 - FUNDAMENTALS OF REFRIGERATION

12

System Components and Operation (video)

13

Refrigerant Cycle (video/computer)

14

Refrigerant System Operation (lab)

15

Typical Operating Conditions (computer)

16

SECTION TEST 3 - REFRIGERATION CYCLE

17

Refrigerant Characteristics (video)

18

Refrigerants (computer)

19

Handling Refrigerants (lab)

20

Refrigerant Physical Properties (computer)

21

SECTION TEST 4 - REFRIGERANTS

22

Tools and Equipment (video)

23

Brazing (video)

24

Oxyacetylene Welding Rig (lab)

25

SECTION TEST 5 - OXYACETYLENE CERTIFICATION

26

Installing ACR Tubing

27

Soldering ACR Tubing (lab)

28

Brazing ACR Tubing (lab)

29

Connecting a Gauge Manifold (video) (lab)

30

Recovery and Evacuation

31

SECTION TEST 6 - TOOLS AND EQUIPMENT

32

FINAL EXAM

Labs total points =

÷9

x 40% =

Section tests total =

÷6

x 40% =

Final exam total =

x 20% =

100-90 = A; 89.9 - 80 = B; 79.9-70 = C; 69.9-60 = D

GPA =

(Rev. 4/27/06)

Labs

Grade =

Instructor’s Signature: ___________________________________ Date: _____________

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Tests