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



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609 exam manual
SAE J2064
. This SAE standard covers hose and hose assemblies intended for Ra refrigerant systems. The hose must minimize permeation of Ra, contamination of the system, and be functional within the temperature range of –22° F. to
257° F. (‐30° C. to 125° Ci b













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RETROFITTING TO HFC-134a
The process of retrofitting a CFC vehicle to HFC‐134a may vary from vehicle to vehicle. Much of what you do will depend on the integrity of the system. Although there are certain general procedures that must be followed when retrofitting, you should consult the vehicle manufacturer and follow their recommendations.

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