Vehicle Air Conditioning Course Code : 3360204
GUJARAT TECHNOLOGICAL UNIVERSITY, AHMEDABAD, GUJARAT
COURSE CURRICULUM
COURSE TITLE: VEHICLE AIR CONDITIONING
(COURSE CODE:3360204)
Diploma Programme in which this course is offered Semester in which offered
Automobile Engineering Sixth
1. RATIONALE
Vehicle air conditioning is the important feature of any modern vehicle. This course is
designed to learn the fundamental principles and basic concept of vehicle air conditioner
system. Also this will help the students in understanding the troubles occurring in vehicle air
conditioner system, its possible causes and required measures. The student will develop the
ability to use the instruments and tools to check and service the system.
2. COMPETENCY
The course content should be taught and implemented with the aim to develop different types
of skills leading to the achievement of the following competency:
Troubleshoot using standard procedures for maintaining vehicle air conditioning
and heating systems.
3. COURSE OUTCOMES
Students will be able to:
i. Identify various components of Vehicle Air conditioning and heating system.
ii. Apply various concepts related to Air conditioning and heating system.
iii. Operate manually and automatic Air conditioning and heating system.
iv. Diagnose various faults in air conditioning system by using suitable tools and
instruments.
v. Follow safety rules while servicing of Air conditioning and heating system.
4. TEACHING AND EXAMINATION SCHEME
Examination Scheme
Teaching Scheme Total Credits
Theory Total
(In Hours) (L+T+P) Practical Marks
Marks Marks
L T P C ESE PA ESE PA
150
3 0 2 5 70 30 20 30
Legends: L-Lecture; T – Tutorial/Teacher Guided Student Activity; P - Practical; C – Credit;
ESE - End Semester Examination; PA - Progressive Assessment.
GTU/ NITTTR Bhopal/14 Gujarat State
Vehicle Air Conditioning Course Code : 3360204
5. DETAILED COURSE CONTENTS
Unit Major Learning Topics and Sub-topics
Outcomes (Course
Outcomes in Cognitive
Domain according to
NBA terminology)
Unit – I 1a.Explain concepts of 1.1 Fundamental principles and various Definitions
VEHICLE air conditioning.
AIR- 1b.Describe Air (i) Heat and Modes of heat transfer.
CONDITI Conditioning Cycle. (ii) Latent Heat, Sensible Heat.
ONING 1c.Describe functions (iii) Various Refrigerants and its properties.
FUNDAM of various (iv) Air circulation and Humidity.
ENTALS. components of air- (v) Cooling the air.
conditioning, & (vi) Drying and cleaning the air.
heating system. (vii) Due Point Temperature, Wet bulb/Dry bulb
Temperature, Humidity, Relative Humidity.
1.2 Air-conditioning principle with Schematic layout
(Vapour Compression Refrigeration cycle)
1.3 Basic Air-conditioning systems and operation of
basic components
(i) Magnetic clutch.
(ii) Types of compressors.
(iii) Condensers.
(iv) Receiver Drier and Filter.
(v) Different types of expansion valves and suction
valves.
(vi) Evaporator and heat sensing tube.
(vii) Thermostats switch, Evaporator Pressure
Regulator.
(viii)Automotive air-conditioning controls.
1.4 Working of different automotive heaters.
Unit – II 2a.Describe various 2.1 Manually controlled air-conditioner heater
VEHICLE automotive Air- systems.
AIR- conditioner & (i) Different types of air-conditioner heater systems.
CONDITI Heater systems. (ii) Working and its operating modes.
ONING 2.2 Automatically controlled Air-conditioning
AND systems.
HEATER (i) Automatic temperature control.
SYSTEMS. (ii)Operating modes.
(iii) Different parts of automatic controlled air
conditioning system.
(iv) Humidity Control (Humidifier and Dehumidifier)
2.3 Field installed air-conditioners.
2.4 Automatic climate control.
GTU/ NITTTR Bhopal/14 Gujarat State
Vehicle Air Conditioning Course Code : 3360204
Unit Major Learning Topics and Sub-topics
Outcomes (Course
Outcomes in Cognitive
Domain according to
NBA terminology)
Unit– III 3a.Explain Diagnosis 3.1 Safety in the shop.
HEATER & Testing of (i) Fire prevention
AND AIR- Automotive air- (ii) Shop safety rules
CONDITI conditioner (iii) Air-conditioner service safety rules
ONER system. 3.2 Servicing heating system
TROUBLE 3b. Describe fire (i) Car heater system, trouble diagnosis chart
SHOOTIN prevention & shop 3.3 Causes of Air-conditioner failure
G. safety. 3.4 Trouble shooting the Air-conditioner system.
(i) Checking out a trouble
(ii) Air-conditioner trouble - diagnosis chart
3.5 Checking the refrigeration system.
(i) Checking system with sight glass
(ii) Using the Leak detector
(iii) Checking pressures with the gauge set
Unit– IV 4a.Explain 4.1 Air-conditioner maintenance and service.
SERVICIN Maintenance & (i) Periodic maintenance
G OF service of various (ii) Vacuum pump service
VEHICLE components of air- (iii) Discharging the system
AIR conditioner (iv) Adding oil
CONDITIO system. (v) Evacuating the system
NING
(vi) Vapour charging and Liquid charging Methods.
SYSTEMS.
4b.Explain Charging (vii) Use of Recovery recharging unit.
& Discharging of 4.2 Different types of air-conditioner service.
air- conditioner 4.3 Removing and replacing components.
system. (i) O - rings
(ii) Hose clamps
(iii) Compressor drive belts
(iv) Removing and replacing the compressor
(v) Removing and replacing other components
4.4 Servicing Air-conditioner compressors.
(i) Servicing different types compressors
(R-4, R-6, V-type etc.)
GTU/ NITTTR Bhopal/14 Gujarat State
Vehicle Air Conditioning Course Code : 3360204
6. SUGGESTED SPECIFICATION TABLE WITH HOURS & MARKS (THEORY)
Distribution of Theory Marks
Unit Unit Title Teaching (Duration – 42 Hours)
No. Hours R U A Total
Level Level Level
I. Vehicle air-conditioning
13 11 10 0 21
fundamentals.
II. Vehicle air-conditioning heater
09 07 07 0 14
systems.
III. Heater and air-conditioner trouble
10 0 05 12 17
shooting.
IV. Servicing of vehicle air
10 0 05 13 18
conditioning systems.
Total 42 18 27 25 70
Legends:
R = Remembrance; U = Understanding; A = Application and above levels (Revised Bloom’s
taxonomy
Note: This specification table shall be treated as a general guideline for students and teachers.
The actual distribution of marks in the question paper may vary slightly from above table.
7. SUGGESTED LIST OF EXPERIMENTS
The tutorial/practical/exercises should be properly designed and implemented with an attempt
to develop different types of cognitive and practical skills(Outcomes in cognitive,
psychomotor and affective domain) so that students are able to acquire the competencies.
Sr. Unit Practical Exercises (Any Seven) Hours
No. No. (Outcomes’ in Psychomotor Domain) (Total 28 hrs)
1 III Test the Air Conditioning System for refrigerant leaks. 4
2 IV Perform Evacuation of the Air-conditioner system 4
3 IV Perform Recharging the Air-conditioner system 4
4 IV Perform Air Conditioning system Recharging with 4
Recovery unit.
5 III Trouble shooting the Air-conditioner system 4
6 IV Service Air-conditioner 4
7 I Service Air-conditioner compressors 4
8 II Service Heating systems 4
8. SUGGESTED LIST OF PROPOSED STUDENT ACTIVITIES
Following is the list of proposed student activities like: course/topic based seminars, internet
based assignments, teacher guided self learning activities, course/library/internet/lab based
mini-projects, Demonstration, Industrial Visits, Transparency, Video collection, Chart or
Model preparation by students etc. These could be individual or group-based.
GTU/ NITTTR Bhopal/14 Gujarat State
Vehicle Air Conditioning Course Code : 3360204
9. SPECIAL INSTRUCTIONAL STRATEGIES (if any)
i. Case studies of typical maintenance/installation problems in ACs for different makes
of automobiles and problem based learning
ii. Arrange expert lectures of executives of different vehicle ACs companies
iii. Visit of authorized workshop of four wheelers.
iv. Collection of animation or video clips and presentation using same.
v. Internet based assignments, teacher guided self learning activities,
course/library/internet/lab based mini-projects etc.
10. SUGGESTED LEARNING RESOURCES
A. List of Books
S.No. Author Title of Books Publication
1 Anil Chhikara Automobile Engineering Satya Prakashan.
(Volume – VI)
2 William H. Automotive Air- Tata McGraw-Hill Co., Ltd.,
Carouse & Donald conditioning New Delhi
L. Anglin
3 Clifford L.Samuels Automotive Air- Prentice Hall Int.
conditioning -
4 Steven Daly Automotive Air- Butterworth-Heinemann
conditioning &
Climate control system.
5 Mark Schnubel Automotive heating and Cengage Publication
air conditioning
B. List of Major Equipment/ Instrument
1. Leak Detector
(a) Halide Torch complete set (Propane Cylinder, torch, etc)
(b) Electric Leak Detector complete set
(Detector probe, Amplifier/tester, 12V battery, test liquid, etc)
2. Vacuum pump – Model for demonstration
3. High/Low Pressure (Vacuum) gauge manifold (unit cm of Hg & kg/cm2)
4. Refrigerant container
5. Oil Inducer (A Long tube with connectors at ends and with a Manual valve)
6. Magnetic clutch – Model for demonstration
7. Expansion valve – Model for demonstration
8. Compressor – cut section for demonstration
9. Evaporator Pressure regulator Valve – for demonstration
10. Car Heater Blower Motor and wheel assembly – for demonstration.
11. V.C.R. Cycle – Model for Demonstration
12. Evaporator – Cut section model for demonstration
13. Air conditioning Recovery Recharging Unit
GTU/ NITTTR Bhopal/14 Gujarat State
Vehicle Air Conditioning Course Code : 3360204
C. List of Software/Learning Websites
Sample Video for Practical:
Sr
Topic Sample Video URL Address
No.
How To Find and Repair AC <1> https://www.youtube.com/watch?v=e31HCvckZAU
1 Leaks EricTheCarGuy <2> http://youtu.be/e31HCvckZAU
How To Recharge an AC <1> https://www.youtube.com/watch?v=lN55uStu8Xs
2 System EricTheCarGuy <2> http://youtu.be/lN55uStu8Xs
Using AC Pressure Gauges To <1> https://www.youtube.com/watch?v=PdQGS6mJjQ8
3 Fix Car AC Problems <2> http://youtu.be/PdQGS6mJjQ8
Quick automotive a c system <1> https://www.youtube.com/watch?v=1-R8k0Rf76M
4 leak detection using uv dye <2> http://youtu.be/1-R8k0Rf76M
How to Troubleshoot your <1> https://www.youtube.com/watch?v=QsxzcoYFWTk
Car's AC System NBC
Consumer Watch Advance
5 Auto Parts <2> http://youtu.be/QsxzcoYFWTk
How to Recharge an Auto A C <1> https://www.youtube.com/watch?v=orflU-cvxco
System Removing Connecting
6 Refrigerant Cans to a Car <2> http://youtu.be/orflU-cvxco
How to test for refrigerant <1> https://www.youtube.com/watch?v=2XjAZjqSC-k
7 leaks <2> http://youtu.be/2XjAZjqSC-k
How to pull vacuum on an <1> https://www.youtube.com/watch?v=FiHr5V04dnc
8 R134a car AC system <2> http://youtu.be/FiHr5V04dnc
How to evacuate and pull <1> https://www.youtube.com/watch?v=8Yom2jLiKGA
vacuum on an R134a car AC
9 system <2> http://youtu.be/8Yom2jLiKGA
Evacuate vacuum down your <1> https://www.youtube.com/watch?v=8kTyLkcu0dA
Auto AC system w inexpensive
10 tools <2> http://youtu.be/8kTyLkcu0dA
Air Conditioning <1> https://www.youtube.com/watch?v=WncHNLdU4EA
11 Troubleshooting <2> http://youtu.be/WncHNLdU4EA
<1> https://www.youtube.com/watch?v=tcQ3HVVHXm4
12 A C Troubleshootingpart 2of 2 <2> http://youtu.be/tcQ3HVVHXm4
<1> https://www.youtube.com/watch?v=l5oqzuFNHx4
13 A C Troubleshootingpart 1of 2 <2> http://youtu.be/l5oqzuFNHx4
OR Complete Video Play-list available on below single URL address
http://www.youtube.com/playlist?list=PLssHExVflgpF63EPqNhDZhNGewONk8UGs
11. COURSE CURRICULUM DEVELOPMENT COMMITTEE
Faculty Members from Polytechnics
Mr.D.A.Dave, H.O.D., Automobile Engg. , Sir Bhavsinhji Polytechnic Inst., Bhavnagar.
Mrs.M.N.Vibhakar, Lecturer, Automobile Engg. DR.S&SS Gandhi Polytechnic, Surat
Mr.A.K.Nanavati, Lecturer, Automobile Engg. G.P., Ahmadabad
Mr.V.B.Patel, Lecturer, Automobile Engg. Dr. J.N.Mehta Government Polytechnic,
Amreli
Coordinator and Faculty Members from NITTTR Bhopal
Prof.K.K.Jain, Professor, Deptt of Mechanical Engineering, NITTTR Bhopal
Dr.C. K. Chugh, Professor, Deptt of Mechanical Engineering, NITTTR Bhopal
GTU/ NITTTR Bhopal/14 Gujarat State
