Daikin VRV II RXYQ5MY1B Service Manual page 78

SiE39-404
Heating Operation
High temperature, high pressure gas
High temperature, high pressure liquid
Low temperature, low pressure
Refirgerant Circuit
Fan ON
Heat exchanger
Fan
Electronic expansion valve
Filter Filter
Indoor unit
Thermostat "ON"
Pressure
regulating
valve
Check
valve
Solenoid
valve
Check
valve
High pressure
switch
Compressor
INV
Check
valve
Capillary
tube
Filter
Stop valve (With service port on on-site piping side ø7.9mm flare connection)
Oil equalizing pipe to other outdoor units
S
S Liquid piping to other outdoor units
Gas piping to other outdoor units
S
Refrigerant Flow for Each Operation Mode
Indoor unit operation
Fan OFF
Heat exchanger
Fan
Electronic expansion valve
Filter Filter
Indoor unit
Solenoid
valve
Filter
Heat
exchanger pipe
Filter
Electronic
expansion
valve
Four way
valve
High pressure
sensor
Check Check
valve valve
Solenoid
valve
Filter
Filter
Low pressure
sensor
Check valve
Solenoid
valve
Fan LL
Heat exchanger
Fan
Electronic expansion valve
Filter Filter
Indoor unit
Thermostat "OFF"
Capillary
Check
tube
valve
Filter Electronic
expansion valve
Filter
Fan
Heat exchanger
Pressure
regulating
valve
High pressure
switch
Compressor
STD
4D044808
67