Daikin VRV II RXYQ5MATL Service Manual page 67

Refrigerant Flow for Each Operation Mode
Heating Operation
"High temperature, high pressure gas"
"High temperature, high pressure liquid"
"Low temperature, low pressure"
56
Fan ON
Fan OFF
" ON "
Heat exchanger
Fan
EV:Nomal
control
Filter Filter
Electronic expansion valve
Indoor unit
Thermostat "ON"
Heat
exchanger
pipe
Gauge port
Stop valve(with service port on on-site piping side
Indoor unit operation
" OFF "
Heat exchanger
Fan
EV:224pls
Filter Filter
Electronic expansion valve
Indoor unit
Filter
Solenoid
Fusible plug
valve
Filter
Filter
Solenoid
valve
Capillary
tube
4-way valve
Pressure regulating
valve
(check valve type)
Gauge port
Solenoid
valve
Filter
φ 7.9 flare connection)
Si39-504
Fan
LL
" ON "
Heat exchanger
Fan
EV:224pls
Filter Filter
Electronic expansion valve
Indoor unit
Thermostat "OFF"
Electronic
expansion valve
Filter
High pressure
sensor
High pressure
switch
Compressor
Refirgerant Circuit