Air conditioning fundamentals: Fundamentals of refrigeration, basics of vehicle air
conditioning system, location of air conditioning component in a car – schematic
layout of a refrigeration system, component like compressor, condenser, fan blower,
expansion device – expansion valve calibration , evaporator pressure regulator ,low and
high pressure switch.
Air conditioning heating system: Automotive heaters – manually controlled air conditioner
– heater system –automatically control air conditioner – air conditioning protection with
heater diagnosis chart.
Refrigerants: Introduction, classification, properties, selection criteria, commonly used
refrigerants, eco-friendly refrigerants, global warming and ozone forming potential of
refrigerants, containers, handling of refrigerants.
Psychrometry: Introduction, Psychometric properties, Inside and outside design
conditions of air conditioning system. Air distribution: introduction, factors affecting
design of air distribution system, types of air distribution system, air flow through the
dashboard recalculating unit, duct system, ventilation, vacuum reserve.
Air conditioning maintenance and service: Cause of air conditioner failure, trouble
shooting of air conditioning system, servicing heater system, removing and replacing
components, leak testing, compressor service, charging and discharging, performance
testing.