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5
Application Information
Refrigerant Circuit Diagrams
Model: FTK25JXV19 – RK25FXV19 / FTK35JXV19 – RK35FXV19 / FTK50JXV19 – RK50CXV19 /
FTK60JXV19 – RK60CXV19
PIPING
GAS
3 WAY
VALVE
MUFFLER
COOLING OPERATION
PIPING
LIQUID
RETURN AIR SENSOR
HEA
T EX
CHANGER
(INDOOR UNIT
)
PIPE TEMPERA
TURE
SENSOR
DISCHARGE
A
C
CUMULA
TOR
COMPRESSOR
STRAINER
OUTDOOR UNIT
INDOOR UNIT
3 WAY
VALVE
ELECTRONIC EXPANSION
VALVE
PIPE TEMPERA
TURE
SENSOR
RETURN AIR SENSOR
HEA
T EX
CHANGER
(OUTDOOR UNIT
)
Model: FTXN25JXV1 – RXN25FXV1 / FTXN35JXV1 – RXN35FXV1 / FTXN50JXV1 – RXN50CXV1 /
FTXN60JXV1 – RXN60CXV1
3 WAY VALVE
MUFFLER
MUFFLER
4 W
A
Y V
A
LV
E
Cooling operation
Heating operation
PIPING
LIQUID
ELECTRONIC EXPANSION
VALVE
RETURN AIR SENSOR
HEA
T EX
CHANGER
(OUTDOOR UNIT
)
PIPE TEMPERA
TURE
SENSOR
DISCHARGE PIPE
SENSOR
PIPE TEMPERA
TURE
SENSOR
RETURN AIR SENSOR
HEA
T EX
CHANGER
(OUTDOOR UNIT
)
COMPRESSOR
ACCUMULATOR
STRAINER
STRAINER
OUTDOOR UNIT
INDOOR UNIT
2 WAY VALVE
PIPING
GAS