Category: HVAC

  • November 27, 2025
    WHAT TYPE III COVERSType III applies to low-pressure appliances:• Operate below atmospheric pressure• Common refrigerants: R-11, R-123, R-113, R-245fa• Typical…

  • November 27, 2025
    TYPE II SYSTEM SCOPEMedium, High, and Very-High Pressure systems.Common refrigerants: R-22, R-404A, R-407C, R-410A, R-717. LEAK CATEGORIES & MAXIMUM LEAK…

  • November 27, 2025
    WHAT TYPE I COVERSThis certification applies only to small appliances:• Factory-charged and sealed systems• Contain 5 pounds or less of…