Who must be certified? Any person that services Motor Vehicle Air Conditioning (mvac)

requires 95% recovery of refrigerant from an MVAC system

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609 exam manual

requires 95% recovery of refrigerant from an MVAC system. Effective January 29, 1998, the EPA adopted rulings for recover/recycle equipment where CFC and HFC‐134a shares a common refrigerant circuit. These single circuit machines contain special features to prevent cross‐
contamination in the refrigerant circuit and must meet SAE standard J. Other dual refrigerant units are essentially two recycling machines in one cabinet that do not share a common refrigerant circuit. These units must meet SAE J and SAE J standards.
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Equipment manufactured to SAE standards is capable of cleaning recyclable refrigerants, such as CFC and HFC‐
134a, to an acceptable level only if it was removed from a MVAC. Refrigerants from other types of systems may contain impurities that the equipment cannot remove, such as acids from a hermetically sealed compressor that has experienced a "burnout. Do not attempt to recover or recycle refrigerants from any system other than a
MVAC.

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