Step 1 – Understand air and heat
Learn heat transfer, sensible and latent heat, tonnage and the psychrometric chart. These ideas explain every later calculation.
Step 2 – Learn the systems
Study the vapour-compression cycle, refrigerants and the main system types: split, package, VRF and chilled water. Knowing why a system is chosen is what separates a designer from a draughtsman.
Step 3 – Estimate the load
Practise heat load estimation with a worksheet method and then with software such as HAP. Compare the two so you can sanity-check software results.
Step 4 – Size the air side and draw it
Use duct sizing methods such as equal friction, then produce layouts in AutoCAD. A clean drawing with correct sizes is the deliverable most employers check first.
Step 5 – Move to BIM
When you are comfortable, model the same project in Revit MEP to see how loads, systems and drawings connect in one model.
Written by the CareerKraft training team. Course details change; confirm current syllabus, fee and batch dates on WhatsApp.