Ports 23, 24 direct the flow of {HEAD ~ the vaporized refrigerant} to {TAIL ~ suction line} 19 of compressor 10 
to
Ports 23 , 24 direct the flow of { HEAD ~ the vaporized refrigerant } to { TAIL ~ suction line } 19 of compressor 10
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH