Air conditioner 24, wherein the U shaped tube is provided with {HEAD ~ a bore} in the proximity of {TAIL ~ the floor} of the collector 
Air conditioner 24 , wherein the U shaped tube is provided with { HEAD ~ a bore } in the proximity of { TAIL ~ the floor } of the collector
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH