Basic Fundamentals of HVAC

Engineering Academy Engineer

This course turned out to be more technical than I anticipated. Coming from a general facilities background, the breakdown of the refrigeration cycle and basic load calculations helped fill a gap that usually gets glossed over on job sites. The sections on heat pumps and airflow fundamentals were especially useful, since those come up constantly during equipment selection meetings.One challenge was getting comfortable with the terminology early on. Psychrometrics, sensible vs. latent loads, and how they tie back to real comfort issues took a bit of rewatching before it clicked. That said, the beginner pacing made it manageable without feeling watered down.What stood out was the practical framing. Understanding how ventilation requirements relate to indoor air quality, rather than just code compliance, changed how current retrofit projects are being reviewed. A clear takeaway was being able to look at a basic HVAC schematic and follow refrigerant flow and air paths without guessing.

Trinergy Engineering DIRECTOR

Coming into this course, I had some prior exposure to the subject, mostly from field coordination and reviewing HVAC submittals rather than formal training. The course does a decent job laying out the basics of the refrigeration cycle and air distribution, and it introduces psychrometrics in a way that beginners can at least follow, even if mastery takes more time. The section on heat pumps versus conventional split systems was especially relevant given where the industry is heading. One challenge was that some concepts, like load calculations and airflow balancing, were presented at a high level without many real-world edge cases. In practice, odd building envelopes, part-load conditions, and poor duct layouts drive most problems, and that nuance only came through indirectly. Compared to how things are handled on actual projects, the course leans more idealized than messy. A practical takeaway was the emphasis on proper sizing and understanding system interactions before selecting equipment. Too often in industry, oversizing is still treated as a safety net, and this course at least pushes back on that habit. The content felt aligned with practical engineering demands.

sunil singhal Manager

Coming into this course, I had some prior exposure to the subject, mostly from field coordination and reviewing HVAC submittals rather than formal training. The course does a decent job laying out the basics of the refrigeration cycle and air distribution, and it introduces psychrometrics in a way that beginners can at least follow, even if mastery takes more time. The section on heat pumps versus conventional split systems was especially relevant given where the industry is heading. One challenge was that some concepts, like load calculations and airflow balancing, were presented at a high level without many real-world edge cases. In practice, odd building envelopes, part-load conditions, and poor duct layouts drive most problems, and that nuance only came through indirectly. Compared to how things are handled on actual projects, the course leans more idealized than messy. A practical takeaway was the emphasis on proper sizing and understanding system interactions before selecting equipment. Too often in industry, oversizing is still treated as a safety net, and this course at least pushes back on that habit. The content felt aligned with practical engineering demands.

Vicko Peović Engineer

This course turned out to be more technical than I anticipated. For a beginner track, it went beyond buzzwords and actually touched on load calculations and basic psychrometrics, which is where a lot of entry-level HVAC folks usually get tripped up. The overview of the vapor-compression refrigerant cycle was solid, especially the explanation of superheat and subcooling, though it stayed conceptual rather than diagnostic, which makes sense at this level. One challenge was the pacing around ventilation standards. ASHRAE 62.1 was mentioned, but the edge cases—like mixed-use spaces or high-occupancy scenarios—were glossed over. In industry, those exceptions drive a lot of redesign and rework, so even a brief nod to them would help set expectations. Compared to how we train junior engineers in-house, this course is lighter on controls integration and system-level interactions, such as how HVAC sizing impacts energy modeling and commissioning outcomes. A practical takeaway was a simple framework for thinking through system selection: start with load, then airflow, then equipment type, rather than jumping straight to tonnage. That mindset alone can prevent common mistakes seen on early projects. The content felt aligned with practical engineering demands.