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Honeywell - R-1234yf vs. R-134a: Servicing R-1234yf Systems
Technician A says even if they are already Section 609 certified, technicians must obtain a new certification to legally work on R-1234yf systems. Technician B says technicians who work on R-1234yf systems must acquire SAE J2845 training. Who is correct?
*
Technician A Only
Technician B Only
Both technicians A and B
Neither technicians A or B
Electronic leak detectors for use with R-1234yf must meet SAE Standard J2913.
*
True
False
Technician A says a SAE J2843-spec. R/R/R machine will perform a vacuum decay check before delivering a full refrigerant charge to a system. Technician B says a SAE J2843-spec. R/R/R machine will deliver a partial charge, and direct the technician to perform a leak check before delivering a full refrigerant charge to a system. Who is correct?
*
Technician A Only
Technician B Only
Both technicians A and B
Neither technicians A or B
The PAG (polyalkylene glycol) oils used in R-1234yf systems will always be the exact same ones used in R-134a systems.
*
True
False
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