The technical aspects of gas heating and air conditioning are easily understood using:
- Wiring diagrams and symbols as a good representation of what the technician will see on equipment manufacturers schematics.
- Voltage readings and what the readings mean to the technician.
- Sequences of operations of furnaces and boilers.
- Basic knowledge of furnaces, boilers, and their operating controls and accessories.
- Air conditioning systems service techniques and explanations of refrigerant handling.
- EPA 608 practice tests with answers for exam preparation.
This book is written from an HVAC instructors' point of view who was also an installer and technician and is intended to seem as if the instructor is with you, guiding you every step of the way