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NATE Low-GWP Refrigerant Certification

Complete study program for the NATE Low-GWP Refrigerant Certification. Progress through 8 structured modules covering all exam topics.

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🇺🇸 United States 8 modules ~3-5 hours 120 exam questions
  • Compare GWP values of low-GWP refrigerants to legacy HFC refrigerants they replace
  • Identify the safety classification (A1, A2L, A3) of common low-GWP refrigerants
  • Explain how temperature glide affects system design and charging for zeotropic low-GWP blends
  • Describe the operating characteristics of R-32, R-454B, R-1234yf, and R-290
  • Explain the ASHRAE 34 safety classification system for refrigerants (A1, A2L, A2, A3)
  • Define lower flammability limit (LFL) and burning velocity for A2L refrigerants
  • Compare A2L ignition characteristics to A1 (non-flammable) and A3 (highly flammable) refrigerants
  • Identify which common low-GWP refrigerants carry the A2L classification

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