Grant Hand will present the OEX 2024 automotive air conditioning training courses.

OEX has unveiled its 2024 automotive air conditioning training courses, presented by leading automotive trainer Grant Hand.

The three courses for 2024 include the basic course, the advanced diagnostic course, and the earthmoving and agricultural air conditioning systems course.

Basic course

Fundamentals of automotive air conditioning
This one-day course is crucial for all automotive technicians, whether you are new to the industry, or just haven’t had the opportunity to undertake comprehensive system pressure/temperature diagnostic training before.

With the large variation of systems currently on the market, gauge recognition alone can no longer be relied upon to analyse charge rates, or perform system diagnostics.

Course content

• Componentry and system layout
• Full pressure and temperature analysis of the system
• Reading and analysing gauges correctly (both pressure and temperature)
• Basic fault diagnosis of systems
• Full servicing procedures
• Servicing equipment, recommendations and guidelines
• Critical charging of systems (when the charge quantity is not known)
• Analysing charge rates by pressure/ temperature analysis and pipe feel
• Overviews of system types – TX valve, expansion tube, variable pumps and full electronic clutchless systems
• Full training manuals are provided with this course
• R1234yf systems

Advanced diagnostic course

Analysis of automotive air conditioning systems
This one-day course is an extension of the basic fundamentals course. It covers full diagnostic techniques for all automotive and air conditioning systems currently fitted to road vehicles. This is essential for anybody involved in the service and repair of automotive air conditioning systems.

Comprehensive diagnostic manuals are provided, which will specifically address TX valve, expansion (orifice) tube systems and variable displacement compressors. This course also utilises a considerable amount of supervised practical and group work.

Course content

• A review of pressure and temperature analysis of systems
• Detailed operation of the cycling clutch thermostatic expansion valve system
• Detailed operation of the expansion/ orifice tube systems (there are three variations of the basic system)
• Detailed operation of mechanical variable displacement compressor systems
• Full diagnosis of all three systems including system (component) faults, charge analysis and performance analysis
• Special attention is given to the correct analysis of variable displacement compressor failures (a large number of compressors are replaced unnecessarily due to other system faults)
• R1234yf systems

Earthmoving and agricultural air conditioning systems course

This course follows the basic and advanced courses. Dedicated to the diagnosis and evaluation of mobile air-conditioning systems that are used in off-road applications.

These systems are in many cases different from ‘ordinary’ automotive systems, as they can often suffer from pressure drops, flow restrictions, incorrect pipe sizing and/or poor design, which limit the capacity especially in high humidity conditions.

In this course, we specifically address diagnostic procedures, pressure/temperature analysis, performance evaluation, capacity and efficiency analysis.

You may have systems that lack performance, or that suffer from low capacity that you cannot repair without a component replacement/modification.

Course content

• A review of pressure/temperature analysis of systems
• Capacity, efficiency, performance evaluation and diagnosis
• Flow analysis, pressure drop analysis, hose sizing
• Gauge analysis to identify excessive pressure drops, incorrect hose size, etc
• Data logging of performance
• Correct pump sizing
• TX valve sizing, superheat and correct system matching
• Identifying condenser limitations, correct sizing, sub-cool and pressure analysis
• Identifying evaporator limitations, blockages, and flow analysis.

For more information on the courses and a booking form please contact Paul Findlater at pfindlater@gpcasiapac.com or 0272 640 486.