Uploaded August 2026 | Updated September 2026, 3 weeks ago
Roman Baugh supplies the memorable analogy while HVAC School cross-checks the chemistry: in this simplified, electrically connected Zn–Cu couple sharing a conductive electrolyte, zinc is the anode and oxidizes while electrons travel through metal toward cathodic copper. This is a teaching model—not a product schematic—and visible corrosion alone does not confirm a refrigerant leak.
#HVACSchool #Corrosion #CathodicProtection #HVACTech #Shorts
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KEEP LEARNING
Start here:
hvacrschool.com/start
Free HVAC/R training, tech tips, quizzes, calculators, courses, and more:
hvacrschool.com
Listen to the HVAC School podcast:
hvacrschool.com/podcast
Get the HVAC School app:
hvacrschool.com/apps-page
HVAC School provides free HVAC/R training—primarily for techs, by techs. The goal is not just to collect facts. It is to understand the system well enough to apply what you know in the field.
Questions or corrections? Leave a comment and include the equipment model, measurements, and source when you can. None of us gets everything right, and good measurements beat confident guesses.
This content is educational. Follow manufacturer instructions, use proper PPE and safe work practices, and comply with the codes and standards that apply to your equipment and jurisdiction.
Roman Baugh supplies the memorable analogy while HVAC School cross-checks the chemistry: in this simplified, electrically connected Zn–Cu couple sharing a conductive electrolyte, zinc is the anode and oxidizes while electrons travel through metal toward cathodic copper. This is a teaching model—not a product schematic—and visible corrosion alone does not confirm a refrigerant leak.
#HVACSchool #Corrosion #CathodicProtection #HVACTech #Shorts
---
KEEP LEARNING
Start here:
hvacrschool.com/start
Free HVAC/R training, tech tips, quizzes, calculators, courses, and more:
hvacrschool.com
Listen to the HVAC School podcast:
hvacrschool.com/podcast
Get the HVAC School app:
hvacrschool.com/apps-page
HVAC School provides free HVAC/R training—primarily for techs, by techs. The goal is not just to collect facts. It is to understand the system well enough to apply what you know in the field.
Questions or corrections? Leave a comment and include the equipment model, measurements, and source when you can. None of us gets everything right, and good measurements beat confident guesses.
This content is educational. Follow manufacturer instructions, use proper PPE and safe work practices, and comply with the codes and standards that apply to your equipment and jurisdiction.
