About This Resource 

Welcome to HVAC Training Manuals, an online training hub built specifically for HVAC/R apprentices looking to build a strong foundation in the trade. Whether you're just starting out or working through your apprenticeship hours, this site is designed to give you clear, practical knowledge you can apply on the job.

Who's Behind It

My name is Sam Bilamjian, and I've spent over 20 years working in the HVAC/R industry. Over that time, I've worked across residential, commercial, and industrial systems, gaining hands-on experience in installation, service, and diagnostics. That experience showed me how big the gap can be between classroom theory and real-world application, and that's exactly what this resource is built to close.

Why I Built This

Good training materials that are free, accessible, and written by people who've actually done the work are hard to come by. I created this site to give apprentices a reliable place to learn at their own pace, without the noise.