Hennepin Technical College
Class confirmed
HVAC1090
Fall 2026 · 2 sections
You found HVAC 1090.
Low Global Warming Potential (GWP) Refrigerant Certification Exam
Harbor turns your HVAC 1090 notes into a readiness map so you can see what looks solid, shaky, or missing.
Built from this class—not a generic study guide.
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