HVAC Equipment Sizing & Selection

Engineering Academy Engineer

This course turned out to be more technical than I anticipated. Coming in with field experience on HVACR projects, the deeper dive into ventilation rates, ASHRAE 62.1 interpretation, and duct sizing methods filled a real gap for me. The sections tying airflow calculations to fan energy and energy utilities costs were especially relevant, since utility penalties and peak demand are constant concerns on our commercial jobs.One challenge was keeping up with the psychrometrics portion. But this course is really helpful alot.

Riju Abraham MECHANICAL DESIGNER

This course doesn’t assume you need hand-holding, which I liked since I’m usually flipping between calc sheets and prod work. The chapter on looped systems stuck with me, especially the walk-through where he balances a three-node loop and checks the most remote head after adding equivalent length for fittings. That mirrors how I actually sanity-check sprinkler calcs before a PR, and it shaved time the next time I had to review a submittal for a mixed sprinkler/standpipe job. Wasn’t sold on the pacing in the standpipe section; I wished there was a bit more on combined demand cases and how folks reconcile hand calcs with software outputs. still, the friction loss examples felt grounded, not academic, and the hvacr crossover notes helped frame why certain assumptions keep showing up. I’ve been doing these calcs for a while, but it finally clicked why the numbers land where they do under the hood.

Suresh Mohan Manager

Few classes spell out the tradeoffs without sugarcoating; this one mostly does, which matters when the deliverable is a building that has to behave in prod. The pacing fit how I work as a freelancer: skim the arch, grab the infra implications, move on, no fluff. The moment that stuck was the alarm management section where they walk through deadband math for a chilled water loop and show why a 0.5°C choice explodes obs noise at scale; I’ve seen that exact mess at 2am. There’s practical stuff too, like the BACnet scheduling vs local controller clocks comparison and how it affects maintenance windows. wasn't sold on the brief PLC aside, and I wished there was more on commissioning checklists and energyutilities handoff, but that’s minor. I’ve already shared notes in our repo and flagged it as prereading before we lock the next BMS platform.

Aryan Raj Pandey Social Media Manager

it felt closer to a mentorship than a canned class, with the instructor thinking out loud through decisions. The moment in Section 5 where he rebuilds a duct layout using annotative blocks and layer states, then fixes a plotting issue in Paper Space, stuck with me. As someone bridging legacy CAD habits to modern workflows, it mapped well to how we refactor arch and infra in prod—it's small PRs, fewer surprises, cleaner obs. Mostly great, though I wasn't sold on the brief load calc aside and wished for a bit more on coordination with energyutilities.