Toshiba MMY-MAP1006FT8(J)P-E Service Manual page 57

Flow Selector unit
Single port FS unit
RBM-Y1123FE/FE2
Liquid
pipe
Capillary
Check
valve
To indoor
liquid side
RBM-Y2803FE/FE2
Liquid
pipe
Check valve
Capillary
To indoor
liquid side
Multi port FS unit
(To Outdoor unit)
Suction gas pipe
Discharge gas
Liquid pipe
PMV
(To Indoor unit)
Liquid pipe
Functional par ts name
Solenoid valve
Pulse motor
valve
Temp. sensor
Suction
Discharge
gas pipe
gas pipe
Check valve
Strainer
Strainer
Capillary
Capillary
(SVS)
Strainer
To indoor
gas side
Discharge Suction
gas pipe gas pipe
Strainer
Strainer
Capillary
Capillary
(SVS)
Strainer
To indoor
gas side
TCS
SVS SVS
SVD
SVSS
SVDD
(To Indoor unit) (To Indoor unit)
Gas pipe Liquid pipe
Branch unit
F4PE/F4PE2: 4 units
F6PE/F6PE2: 6 units
(Discharge gas b lock valve)
SVD
1) ) High-pressure gas circuit at heating operation
(Suction gas b lock valve)
SVS
1) ) Low-pressure gas circuit at cooling operation
(Pressure valve)
SVDD
1) To increase pressure when No. of indoor heating units are increased
(Regulator v alve)
SVSS
1) To recover refrigerant in the stopped cooling thermostat-OFF indoor unit
2) To decrease pressure when No. of indoor heating units are decreased
PMV
1) Controls flow volume of the double-pipes bypass circuit
(Only Multi port FS unit)
TCS
1) Detects refrigerant temp. at outlet of the double-pipes bypass circuit
to check an abnormality of PMV
RBM-Y1803FE/FE2
Liquid
pipe
Capillary
Check
valve
To indoor
liquid side
PMV
TCS
SVS
SVD
SVSS
SVDD
(To Indoor unit)
Gas pipe
Function outline
− 56 −
Suction
Discharge
gas pipe gas pipe
Check valve
Strainer
Strainer
Capillary
Capillary
Strainer
To indoor
gas side
PMV
TCS
SVS
SVD
SVDD
(To Indoor unit)
Liquid pipe
(SVS)
SVS SVS
SVSS
(To Indoor unit)
Gas pipe