Refrigerant Circuit - Daikin RQYQ140-180PY1 Service Manual

Refrigerant Flow for Each Operation Mode
Cooling oil return / Heating oil return / Defrost operation
"High temperature, high pressure gas"
"High temperature, high pressure liquid"
"Low temperature, low pressure"
25
Indoor unit operation "ON" (Cooling) Indoor unit operation "OFF" (Cooling)
+
Thermostat "ON"
Heat exchanger
Fan "ON"
Electronic expansion valve
(Superheated control)
Filter Filter
Indoor unit operation "ON" (Cooling)
Heat exchanger
Fan "OFF"
Electronic expansion valve Electronic expansion valve
(224 pls)
Filter Filter
SiBE341001
+
Thermostat "OFF"
Heat exchanger
Fan "ON"
(224 pls)
Filter Filter
Fan
M

Refrigerant Circuit