Then the refrigerant flows downwardly through {HEAD ~ header} 54 and enters the two tubes forming the second tube circuit 32b arranged in {TAIL ~ series} with the upper tube circuit 32a 
Then the refrigerant flows downwardly through { HEAD ~ header } 54 and enters the two tubes forming the second tube circuit 32b arranged in { TAIL ~ series } with the upper tube circuit 32a
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH