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 |
A) It automatically shuts down the recovery unit compressor when the recovery cylinder becomes 80% full. |
B) It automatically transitions the recovery unit from the direct liquid recovery mode to the direct vapor recovery mode. |
C) It automatically shuts down the recovery unit compressor when the discharge pressure becomes excessive. |
D) It automatically shuts down the recovery unit compressor when the refrigeration system has reached a depth of 15" Hg. |