Daikin RQYQ140-180PY1 Service Manual page 42

Refrigerant Flow for Each Operation Mode
Simultaneous cooling / Heating operation
Indoor unit operation "ON" (Cooling)
"High temperature,
high pressure gas"
"High temperature,
high pressure liquid"
"Low temperature,
low pressure"
33
+
Thermostat "ON"
Heat exchanger
Fan "ON"
(Setting)
Filter Electronic expansion valve Filter
(Normal)
Indoor unit operation "ON" (Heating)
+
Thermostat "ON"
Heat exchanger
Fan "ON"
(Setting)
Filter Electronic expansion valve Filter
(Normal)
SiBE341001
Indoor unit operation "ON" (Heating)
+
Thermostat "ON"
Heat exchanger
Fan "ON"
(Setting)
Filter Electronic expansion valve Filter
(Normal)
Fan
M
Fan
M
Refrigerant Circuit