In a cooling mode of operation {HEAD ~ the high pressure discharge gas} is routed through ports 21 and {TAIL ~ 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 
In a cooling mode of operation { HEAD ~ the high pressure discharge gas } is routed through ports 21 and { TAIL ~ 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
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