This series of 9 training modules continues building on the basic knowledge from GTAC-II and is intended to provide additional knowledge on topics every new technician needs to understand. Like the GTAC-II these modules are in simple language and concentrate on presenting the concepts in ways that can be easily understood. After completing these modules a student should posses the understanding of processes used in installing and servicing air conditioning systems. Each module contains a quiz with reference to the appropriate section of the module allowing students to evaluate their understanding of the concepts presented.

This class is the complete 9 modules and includes a mid-term test and a comprehensive final exam.

This module describes current refrigerants, along wit their basic properties and applications.

In this module, you will learn how oils are used, selected, and handled. Problems with oils will also be discussed. 

The goal of this module is to familiarize you with refrigerant piping designs so you will be able to spot and modify obvious field piping errors caused by improper design and/or installation. These types of errors lead to system service problems and event to system failure. 

New field-piped systems and systems that have been opened for repair must be dehydrated before try are placed in operation. If dehydration is not performed properly, the safe operation and life expectancy of the system will be jeopardized. the goals of this module are to familiarize you with the system dehydration and to show you how to properly dehydrate a system.

The goal of this module is to train you to charge, recover and recycle refrigerant used in refrigeration and air conditioning systems. If the charging and recovery of the refrigerant and other fluids within the system is not performed properly, the safer operation and life expectancy of the system are jeopardized. This course focuses on halocarbon refrigerants because they are most commonly used in refrigeration ad comfort air conditioning systems. 

The goal of this module is to train you in the techniques required to install a field-piped air conditioning system. Planning and safety considerations are covered first. These are followed by guidance on equipment placement, vibration control, and connection to the ductwork and piping systems. System inspection, start-up and checkout procedure, as well as customer courtesies, are also provided. 

In this module, you will learn how heat pumps work and how their energy differs from that of cooling-only systems. You will also learn about the different types of heat pumps and the special considerations associated with selecting, installing and servicing heat pumps. 

The goal of this module is to help you understand how changing loads affect system operation and how systems are designed to cope with changing loads. You will also learn how improper capacity control can cause problems in the system. 

The goal of this module is to teach you the basic concepts of troubleshooting. The module will stress the importance of following a logical, structured approach, and will provide examples of such an approach.