Hands-On: Two Quick Diagnostics

Two short factory call-outs: washdown water heated by gas while the refrigeration plant throws heat away, and a freezer defrosting on a timer nobody questioned. Calculate, diagnose and prescribe the fix.

12 min read · Jacob Willis, Net Zero Lead · Last reviewed July 2026

Time to put this module and the foundations course's cold-plant levers to work on two short, concrete call-outs: the same investigate → calculate → diagnose → prescribe → verify loop as every other deep-dive capstone on this platform, just two cases instead of eight, sized for a quick check of what you've just learned rather than a full assessment.

In this lesson

01What these two cases test
02Sources and further reading