Daikin RQYQ140-180PY1, Service Manual, Page: 32 / 231

Functional Parts Layout SiBE341001
23 Refrigerant Circuit
2. Functional Parts Layout
2.1 RQYQ140 · 180PY1, RQEQ140 ~ 212PY1
Plan
Front View
Electronic expansion valve
(Refrigerant charge)
(Y2E)
Solenoid valve (Refrigerant
regulator liquid pipe)
(Y2S)
Solenoid valve (Refrigerant
regulator hot gas)
(Y1S)
Solenoid valve (Refrigerant
regulator gas vent pipe)
(Y3S)
Thermistor (Discharge pipe)
(R2T)
Electronic expansion valve
(Subcooling)
(Y3E)
Electronic expansion valve
(Main)
(Y1E)
Four way valve (Mixing unit)
(Y8S)
Inverter fan
(M1F)
Solenoid valve (Mixing unit inlet)
(Y9S)
High pressure sensor
(S1NPH)
Thermistor (Suction pipe)
(R5T)
Solenoid valve (Hot gas)
(Y4S)
Solenoid valve (Circuit of oil return)
(Y5S)
High pressure switch (For INV.)
(S1PH)
Thermistor (Outdoor air: Ta)
(R1T)
Service port (Air tight and vacuum drying)
Service port
Inverter compressor (INV.)
(M1C)
Crankcase heater
(E1HC)
Thermistor (Liquid pipe)
(R9T)
Thermistor (Subcooling heat
exchanger gas pipe)
(R7T)
Thermistor (Heat exchanger liquid
pipe)
(R3T)
Thermistor (Subcooling heat
exchanger liquid pipe)
(R8T)
Thermistor (Heat exchanger gas
pipe)
(R4T)
Service port (Liquid pipe)
Service port (Gas pipe)
Service port (Suction gas pipe)
Thermistor (Heat exchanger
deicer)
(R6T)
Four way valve (Dual pressure gas
pipe)
(Y7S)
Four way valve
(Heat exchanger)
(Y6S)
Low pressure sensor
(S1NPL)
· Charge at check operation
· Air tight and vacuum drying