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.

Jose Jesus Corrales Escalona Project Mechanical Engineering Manager

Gave me a sharper vocabulary for design reviews, though module 2 dragged a bit and the quizzes assume you’ve already got NFPA tables bookmarked. Past that, it was practical. As a freelancer, I care about getting calcs right without babysitting them in prod. The walkthrough in Chapter 5 where they hand-calc a looped grid, then sanity-check it against software stuck. Seeing the Hazen-Williams assumptions called out, not hand-waved. The standpipe section tying residual pressure back to pump selection helped me clean up a PR comment the same week. Coverage leans sprinkler-heavy; I wished for five more minutes on mixed-use infra. still, the back third tightens up fast and spends time where reviews actually get contentious.

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.

Premshankar Singh

Reads like margin notes from someone who’s been through late-night revisions and redlines, not a sales pitch. As a TeamLead, I’m thinking about how fast juniors can get useful in the repo, and this mostly helps; the habits map well to how we review PRs and keep arch decisions boring so prod doesn’t wobble. The bit that stuck was Chapter 6 on layer standards and blocks, especially the moment he fixes a return-air tag that breaks xrefs across sheets and shows why naming upfront saves hours later. I wasn’t sold on the short AutoCAD UI tour, and I wished there was a little more on coordinating with energyutilities constraints, but the tradeoffs were explained. mostly the pacing works, and I’ve already folded a few checks into our informal CI for drawings. It nudged me past a plateau I’d been circling without adding infra bloat or extra cost.