The refrigerant separates into {HEAD ~ a vapor phase} and {TAIL ~ a liquid phase} in this vessel 84 
The refrigerant separates into { HEAD ~ a vapor phase } and { TAIL ~ a liquid phase } in this vessel 84
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH