1. PIMPRI CHINCHWAD POLYTECHNIC
PROGRAM: MECHANICAL ENGINEERING COURSE: AUTOMOBILE (17526)

2. 5.Automobile A.C. systems.
CO501.1: Identify various components of Automobile. C501.4 : Describe battery constructional details, charging system, starting system, lighting system.

3. Layout of Car A.C. system

4. Components of A.C. system
Compressor
Condensor
Expansion Valve
tempereture

5. Parameter control
Tempereture
Humidity
Motion
Purity

6. Precautions to be taken while using A.C. system
1. Do not use A/C with fresh air mode open.
2. Never operate a/c with heater on.
3. Never run a/c without refrigerant.
4. Do not leak test a/c with more than 2 MPa pressure.
5. Do not leave a/c joint open.
6. Do not charge refrigerant in a/c system before flushing.