Automotive Air Conditioning Training Manual - (I) Theory - (IV) Retrofitting - (VI) Servicing

Oct 24, 2026

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Automotive Air Conditioning Training Manual covers core theory and practical service workflows for vehicle A/C systems. It explains heat, state change, and pressure-temperature relationships, then introduces refrigerant R134a properties and air conditioning principles. The manual details system types (expansion valve and orifice tube variants), major components such as compressors, condensers, evaporators, thermal expansion valves, and electronic controls, plus retrofitting procedures. It also includes equipment for recovery and recycling, evacuation and charging stations, safety, leak detection, servicing steps, testing conditions, and troubleshooting for poor performance, noise, and odours.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages88

Reading Time3 h 42 min

AccessFree to download

Theory

Understanding heat

Change of state

Pressure & temperature relationship

The Ozone Layer

R134a properties

Principles of air conditioning

System types

Expansion block valve system

Parallel flow condenser system

Orifice tube system

Expansion valve dual system

Components

Compressors

Clutches

Lubrication

Condensers

Evaporators

Thermal expansion valve

Super heat

Filter drier receiver

Accumulators

O rings

Hoses

Charging ports

Wiring A/C systems

Blower speed control

Compressor cycling control

Protective sensors

Temperature control

Mode control

Electronic temperature control (ECC)

Retrofitting

Introduction

Procedures

Equipment

Recovery & Recycling equipment

Evacuation equipment

Charging stations

Combination units

Refrigerant safety

Leak detections & detectors

Servicing

Lubrications

Flushing a contaminated systems

Preparations

Testing conditions

A/C performance check

Faulty performance of A/C systems

A/C system to noisy

A/C system emits unpleasant odours

Automotive Air Conditioning Training Manual (I) Theory The four major function..........................................................................................3 Understanding heat................................................................................................4 Change of state......................................................................................................7 Pressure & temperature relationship......................................................................8 The Ozone Layer....................................................................................................9 R134a properties................................................................................................... 10 Principles of air conditioning.................................................................................. 12 (II) System types Expansion block valve system............................................................................... 13 Parallel flow condenser system............................................................................. 14 Orifice tube system................................................................................................ 15 Expansion valve dual system.................................................................................16 (III) Components Compressors..........................................................................................................17 Clutches................................................................................................................. 22 Lubrication............................................................................................................. 23 Condensers...........................................................................................................24 Foam seals............................................................................................................ 25 Condenser electric fans......................................................................................... 25 Evaporators............................................................................................................26 Thermal expansion valve.......................................................................................27 Super heat............................................................................................................. 29 Orifice tube............................................................................................................ 30 Filter drier receiver................................................................................................. 31 Accumulators.........................................................................................................32 “O” rings.................................................................................................................33 Hoses.....................................................................................................................34 Charging ports....................................................................................................... 35 Wiring A/C systems................................................................................................36 Blower speed control............................................................................................. 37 Compressor cycling control....................................................................................38 Protective sensors................................................................................................. 42 Temperature control...............................................................................................48 Mode control.......................................................................................................... 49 Electronic temperature control (ECC)............

FAQs

What theoretical topics are covered in the manual for automotive air conditioning?

It covers understanding heat, change of state, pressure-temperature relationship, the ozone layer, R134a properties, and the principles of air conditioning.

Which vehicle A/C system types are included?

The manual includes expansion block valve system, parallel flow condenser system, orifice tube system, and expansion valve dual system.

What does the servicing section cover when troubleshooting A/C performance issues?

It covers lubrications, flushing contaminated systems, preparations, testing conditions, A/C performance checks, and fault diagnosis for noisy operation and unpleasant odours.

Oct 24, 2026

Upload by Ezra