Using the device shown in the illustration, which of the following statements is true when adding refrigerant as a vapor to the low side of the refrigeration system. GS-RA-01

Correct Answer: Option A — The hose labeled "H" should be connected to the suction service valve service port, the hose labeled "J" should be connected to the vapor valve on the refrigerant cylinder and the valve labeled "G" should be open.

Charging vapor into the low side of a refrigeration system requires manifold valve G to remain open, connecting the refrigerant cylinder vapor valve via hose J to the manifold and subsequently through hose H to the compressor suction service port for controlled superheated entry.