VEM-114 Refrigeration II

Course Description: This course primarily covers operation principles, installation, preventive maintenance and repair of split type air conditioning systems.

  • This course also meets PLO #(s) 1, 2, 3, 4, 5 and 6 of CA in Refrigeration and Air Conditioning program.
  • Pre-requisite Course(s): Refrigeration I/VEM 113

A.  PROGRAM LEARNING OUTCOMES (PLOs): 
 The student will be able to:

  1. Identify safety and occupational health requirements in the air conditioning and refrigeration   industry.
  2. Use specified hand and power tools for refrigeration and air conditioning.
  3. Perform basic hand skills in maintaining refrigeration and air conditioning system to a given specifications.
  4. Read and interpret basic electrical drawing and symbols related to A/C and refrigeration systems.
  5. Perform basic troubleshooting and repair to residential A/C units and refrigerators.
  6. Participate in the air conditioning and refrigeration profession.

B.  STUDENT LEARNING OUTCOMES (SLOs)- GENERAL: 
The student will be able to:

  1. Discuss fundamentals of air conditioning.
  2. Install split type air conditioning system.
  3. Perform servicing and maintenance of split type air conditioning system.
  4. Recover and recycle refrigerant in the system.
  5. Troubleshoot defects of split type air conditioning system.
  6. Repair mechanical and electrical defects of split type air conditioning system.

SLO

PLO 1

PLO 2

PLO 3

PLO 4

PLO 5

PLO 6

1

M

 

 

 

ID

M

2

M

D

D

D

D

DM

3

M

D

D

 

M

M

4

M

 

I

 

D

M

5

D

 

IM

 

M

D

6

M

D

D

M

M

M

I = Introduced
D = Demonstrated
M = Mastered

C.  STUDENT LEARNING OUTCOMES (SLOs)-SPECIFIC: 
      The student will be able to: 

General SLO 1. Discuss fundamentals of air conditioning.


Student Learning Outcome

Assessment Strategies

1.1 Describe the principles of air conditioning

Short answer questions
Multiple choice questions
Quizzes & Test

1.2 Discuss the different designs of air conditioning unit
1.3 List the classification of air conditioning units
1.4 Explain precisely the operation and application of air conditioning unit

General SLO 2.  Install split type air conditioning system.


Student Learning Outcome

Assessment Strategies

2.1. Select suitable installation places

Short answer questions
Multiple choice questions
Practical task
Quizzes & Test

2.2. Identify troubles related with the installation work

2.3. Determine the procedures in the installation of split type unit

2.4. Install indoor and outdoor unit.

2.5. Lay out refrigerant and water drain pipes

2.6. Connect electrical wirings of the system

2.7. Perform start-up and commissioning

2.8. Observe safety in handling materials, tools and equipment

General SLO 3.  Perform services and maintenance of split type air conditioning unit.


Student Learning Outcome

Assessment Strategies

3.1. Analyze mechanical parts and electrical controls operation

Short answer questions
Multiple choice questions
Practical task
Quizzes & Test

3.2. Perform general cleaning of the system

3.3. Demonstrate checking of refrigerant charge

3.4.Check air distribution

3.5. Observe personal and equipment safety in servicing and maintaining air conditioning unit.

General SLO 4.  Recover and recycle refrigerant in the system.


Student Learning Outcome

Assessment Strategies

4.1. Assess unit for refrigerant recovery

Short answer questions
Multiple choice questions
Practical task
Quizzes & Test

4.2. Enumerate the steps in setting up  refrigerant recovery and recycling equipment

4.3.Demonstrate the steps in refrigerant recovery and recycling

4.4. Follow personal and equipment safety

General SLO 5.  Troubleshoot defects of split type air conditioning unit.


Student Learning Outcome

Assessment Strategies

5.1. Introduce  trouble shooting decision aid

Short answer questions
Multiple choice questions
Practical task
Quizzes & Test

5.2. Diagnose the unit with refrigeration manifold gauges

5.3. Discuss major troubles with the aid of refrigeration cycle

5.4. Determine troubles and countermeasures

5.5. Demonstrate safety in troubleshooting units.

General SLO 6.  Repair mechanical and electrical defects of split type air conditioning units.


Student Learning Outcome

Assessment Strategies

6.1. Evaluate system operating condition

Short answer questions
Multiple choice questions
Practical task
Quizzes & Test

6.2. Analyze a lack of refrigerant in the system

6.3. Demonstrate replacement of mechanical parts of the system

6.4. Analyze electrical diagrams

6.5. Test electrical components

6.6. Replace defective electrical components

6.7. Follow personal and equipment safety in repairing split type air conditioning unit.

D.  COURSE CONTENT

  1. Fundamentals of air conditioning
  2. Install split type air conditioning unit.
  3. Service and maintain split type air conditioning unit.
  4. Recover and recycle refrigerant in split type air conditioning unit.
  5. Troubleshoot split type air conditioning unit.
  6. Repair split type air conditioning unit.

E.  METHODS OF INSTRUCTION

  1. Computer Aided Instruction
  2. Practical/Experimentation
  3. Lecture/Demonstration

F.  REQURIED TEXT(S) AND COURSE MATERIALS
Althouse, A., Turnquist, C., & Bracciano, A. (2004). Modern Refrigeration and Air Conditioning. 18th Edition. Tinley Park, IL: The Goodheart-Wilcox Co., Inc (or most recent edition).

    1. CAI classroom with whiteboard
    2. Laboratory workshop, equipment and  tools of the trade
    3. Text, Teacher’s Resource Guide, workbook
    4. Multi-media projector

G.  REFERENCE MATERIALS

  1. National Center for Construction Education and Research, Heating Ventilating and Air Conditioning. Upper Saddle River, New Jersey Columbus, Ohio, USA.Prentice Hall, 2001 (or most recent edition)

  2.  Scaringe, R. P. Environmentally Safe Refrigerant Service Techniques for the Next Generation. Mainstream Engineering Corporation, Rockledge, Florida, USA. 12th Edition, 2004 (or most recent edition)
  3. Air Conditioning Hand Out

H.  INSTRUCTIONAL COSTS
None

I.   EVALUATION
The student must achieve a grade of C to pass the course.

J.   CREDIT BY EXAMINATION
None

 

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