Concerning the arrangement of equipment and associated hoses shown in the illustration, what statement is true? Illustration GS-RA-58 Illustration GS-RA-58: the U.S. Coast Guard has not released this illustration.

Correct Answer: Option D — When recovering refrigerant from the centrifugal chiller using this method, it minimizes the risk of chiller tube freeze-up.

Recovery methods utilizing a chiller's own pressure differential or auxiliary recovery units must prevent the refrigerant from reaching the freezing point of the water inside the chiller tubes. Proper recovery techniques ensure the refrigerant pressure remains high enough to prevent ice formation, which could rupture the tubes.