Then the vaporous refrigerant is directed from {TAIL ~ conduit} 43 through ports 42 and 50 of valve 35 which connects conduit 43 to a conduit 51 associated with suction line 19 of {HEAD ~ compressor} 10 
Then the vaporous refrigerant is directed from { TAIL ~ conduit } 43 through ports 42 and 50 of valve 35 which connects conduit 43 to a conduit 51 associated with suction line 19 of { HEAD ~ compressor } 10
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH