Author Question: Nothing is seen in the sight glass (R-12 system). Technician A says that the system may be ... (Read 72 times)

Engineer · **on:** Aug 13, 2021

Nothing is seen in the sight glass (R-12 system). Technician A says that the system may be completely empty of refrigerant. Technician B says that the system may be completely charged. Which technician is correct?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B