Resources
Build Your Foundation.
Our course focuses on complex exam logic. To build your baseline theory fast, we recommend this specific path.
The 3-Week Textbook Strategy
Do not read all 1,600 pages. Spend 2–3 weeks focusing strictly on diagrams, charts, and end-of-chapter quizzes.
Option 1 — Detailed Foundation
Refrigeration and Air Conditioning Technology (9th Edition)
Best for deep dives and electrical basics.
Option 2 — Quick Review
Modern Refrigeration and Air Conditioning
A more concise guide for experienced field techs.
Get the Answer Keys
Doing the textbook quizzes? Join our private Discord to download verified answer keys and check your logic instantly.
Top Video Resources
The best free visual explanations for foundational HVAC concepts. We highly recommend subscribing to:
HV
HVAC SchoolDeep dives into HVAC/R theory and industry best practices.
ACAC Service Tech LLCClear visual guides on refrigerant charging and system diagnostics.
WOWord of Advice TVPractical troubleshooting tips and straightforward field advice.
THThe Engineering MindsetBrilliant 3D animations explaining chillers, electricity, and thermodynamics.
HVHVACR VideosReal-world, first-person commercial refrigeration troubleshooting.
TYTy BranamanMasterclass on HVAC electrical fundamentals and control wiring diagrams.