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 D — 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 to the low side requires manifold low-pressure hose connection to the compressor suction service port, cylinder vapor valve connection, and opening the manifold low-side valve.