In a cooling mode of operation {HEAD ~ the high pressure discharge gas} is routed through {TAIL ~ ports} 21 and 22 of four way valve 16 to conduit 17 and then to header 26 of the outdoor coil 12 which operates as a condenser during the cooling cycle 
is routed through
In a cooling mode of operation { HEAD ~ the high pressure discharge gas } is routed through { TAIL ~ ports } 21 and 22 of four way valve 16 to conduit 17 and then to header 26 of the outdoor coil 12 which operates as a condenser during the cooling cycle
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL 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 OTH OTH OTH OTH OTH OTH OTH