Daikin VRV EMERION RXYQ-AATJA Service Manual page 72

Refrigerant Flow for Each Operation Mode
Heating Oil Return & Defrost Operation
High temperature, high pressure, gas
High temperature, high pressure, liquid
Low temperature, low pressure
65
Fan OFF
ON
Heat exchanger
Fan
EV: Normal
control
Filter Filter
Electronic expansion valve Electronic expansion valve
Indoor unit
Thermostat ON
Indoor unit operation
Fan OFF
OFF
Heat exchanger Heat exchanger
Fan
EV: 224 pulses
Filter Filter Filter
Electronic expansion valve
Indoor unit
Thermostat OFF
SiUS342303E
Fan OFF
ON
Fan
EV: 224 pulses
Filter
Indoor unit
C: 3D143019A
Part 2 Refrigerant Circuit