Service Manual

Refrigerant Flow for Each Operation Mode SiUS181631EA
46 Refrigerant Circuit
3. Refrigerant Flow for Each Operation Mode
3.1 Cooling Operation
EV
H
: Full closeEV
C
: Full closeEV
B
: SH control
OUTDOOR UNIT INDOOR UNIT
FILTER FILTER
EVH
EVC
EVB EVA
FILTER FILTER FILTER
FILTER FILTER
EVH
EVA EVB
FILTER FILTER
EVH
EVA EVB
FILTER FILTER
FIELD PIPING
FIELD PIPING
SIROCCO FAN SIROCCO FAN SIROCCO FAN SIROCCO FAN SIROCCO FAN SIROCCO FAN SIROCCO FAN
FAN MOTOR
M
HEAT EXCHANGER
M M
M
M M
M
BP UNIT
(R15416)
EV
A
: Full close EV
H
: Full closeEV
B
: Full close
EV
H
: Full closeEV
B
: Full close
EV
A
: SH control
EV
A
: SH control
: High pressure liquid refrigerant : High pressure high temp. gas refrigerant : Low pressure low temp. liquid or gas refrigerant
FIELD PIPING
FIELD PIPING
FAN MOTOR
HEAT EXCHANGER
FIELD PIPING
FIELD PIPING
FAN MOTOR
HEAT EXCHANGER
FIELD PIPING
FIELD PIPING
FAN MOTOR
HEAT EXCHANGER
FIELD PIPING
FIELD PIPING
FAN MOTOR
HEAT EXCHANGER
FIELD PIPING
FIELD PIPING
FAN MOTOR
HEAT EXCHANGER
FIELD PIPING
OFF OFF OFF OFF
ON ON ON
FIELD PIPING
FAN MOTOR
HEAT EXCHANGER
Y1E Y3E Y2S
480 pulse PI control OFF
ELECTRONIC
EXPANSION VALVE (BYPASS)
ELECTRONIC
EXPANSION VALVE (ROOM A)
ELECTRONIC
EXPANSION VALVE (ROOM B)
FILTER FILTER
ELECTRONIC
EXPANSION VALVE (BYPASS)
ELECTRONIC
EXPANSION VALVE (ROOM A)
ELECTRONIC
EXPANSION VALVE (ROOM B)
ELECTRONIC
EXPANSION VALVE (ROOM A)
ELECTRONIC
EXPANSION VALVE (ROOM B)
ELECTRONIC
EXPANSION VALVE (ROOM C)
LIQUID SIDE
THERMISTOR (DLA)
LIQUID SIDE
THERMISTOR (DLB)
GAS SIDE
THERMISTOR (DGA)
GAS SIDE
THERMISTOR (DGB)
LIQUID SIDE
THERMISTOR (DLA)
LIQUID SIDE
THERMISTOR (DLB)
GAS SIDE
THERMISTOR (DGA)
GAS SIDE
THERMISTOR (DGB)
GAS SIDE
THERMISTOR (DGA)
GAS SIDE
THERMISTOR (DGB)
GAS SIDE
THERMISTOR (DGC)
LIQUID SIDE
THERMISTOR (DLA)
LIQUID SIDE
THERMISTOR (DLC)
LIQUID SIDE
THERMISTOR (DLB)
ELECTRONIC
EXPANSION VALVE (BYPASS)
SV
SV
SERVICE PORT
FILTER
FILTER
FILTER
FILTER
FILTER
HEAT EXCHANGER
COMPRESSOR
ACCUMULATOR
SOLENOID VALVE (Y2S)
CAPILLARY TUBE
HIGH PRESSURE SWITCH
CAPILLARY TUBE
SOLENOID VALVE
OIL
SEPARATOR
HIGH PRESSURE SENSOR
FOUR WAY VALVE
SERVICE PORT
PRESSURE REGULATING VALVE
ELECTRONIC EXPANSION VALVE (Y1E)
DOUBLE PIPE HEAT EXCHANGER
ELECTRONIC EXPANSION VALVE (Y3E)
LOW PRESSURE SENSOR
CAPILLARY TUBE
GAS LINE STOP VALVE
LIQUID LINE STOP VALVE
HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR HEAT EXCHANGER THERMISTOR