Daikin RXYQ96PYDN Service Manual page 55

Refrigerant Flow for Each Operation Mode
Operation of refrigerant regulator
1. Recovery of refrigerant
2. Discharge of refrigerant
3. Pressure regulating valve (Refrigerant regulator)
40
Surplus refrigerant is recovered to refrigerant regulator by opening of SVL and SVG when the
indoor unit load is small.
Liquid
Pipe
S1NPH
Equalizing
Pipe
SVP
Suction Pipe
Refrigerant is discharge from the refrigerant regulator by opening of SVC when the load of the
outdoor unit is large.
Liquid
Pipe
S1NPH
Equalizing
Pipe
SVP
Suction Pipe
The circuit will be closed when SVL, SVO, SVG are all closed. In this case, the increased
pressure in the refrigerant regulator will be transferred to the liquid refrigerant pipe side, to
regulate the pressure.
Tsc
TL
Tsh
Tg
20SA
Ta
S1PH
Tdi
INV
S2NPL
TS_A
Tsc
TL
Tsh
Tg
20SA
Ta
S1PH
Tdi
INV
S2NPL
TS_A
EVT
SVE
Tb
Pressure
regulating valve
Tf
EVM
SVL
Refrigerant
Regulator
SVO
EVT
SVE
Tb
Pressure
regulating valve
Tf
EVM
SVL
Refrigerant
Regulator
SVO
VRVIII R-410A Heat Pump 60Hz
SiUS34-801A_b
Right
SVG
Right
SVG