As shown in the illustrated flow diagram for a self-contained recovery unit designed for the recovery of refrigerants from high pressure appliances as defined by the EPA Clean Air Act rules, what is the functional purpose of the item labeled "FS2"? Illustration GS-RA-32

Illustration GS-RA-32: the U.S. Coast Guard has not released this illustration.

Question

As shown in the illustrated flow diagram for a self-contained recovery unit designed for the recovery of refrigerants from high pressure appliances as defined by the EPA Clean Air Act rules, what is the functional purpose of the item labeled "FS2"? Illustration GS-RA-32

Illustration GS-RA-32: the U.S. Coast Guard has not released this illustration.

Accepted Answer

Option D: It automatically transitions the recovery unit from the direct liquid recovery mode to the direct vapor recovery mode.. Float switch FS2 in a high-pressure recovery unit detects the phase change boundary or liquid level transition, automatically shifting the unit from direct liquid recovery to direct vapor recovery to protect the compressor from liquid slugging.