Refrigerant Flow for Each Operation Mode
SiBE18-821_C
72
Refrigerant Circuit
3.2
Heating Operation
SOLENOID
V
A
LVE)
OUTDOOR UNIT
INDOOR UNIT
FIELD PIPING
FIELD PIPING
SIR
OCCO F
A
N
SIR
OCCO F
A
N
SIR
OCCO F
A
N
SIR
OCCO F
A
N
SIR
OCCO F
A
N
SIR
OCCO F
A
N
SIR
OCCO F
A
N
M
M
M
M
M
M
M
(R13064)
EV
A
: 80 pulse
EV
H
: Full close
EV
B
: 80 pulse
EV
H
: Full close
EV
B
: 80 pulse
EV
A
: SC control
FIELD PIPING
FIELD PIPING
FIELD PIPING
FIELD PIPING
FIELD PIPING
FIELD PIPING
FIELD PIPING
FIELD PIPING
FIELD PIPING
FIELD PIPING
FIELD PIPING
"OFF"
"OFF"
"OFF"
"OFF"
"ON"
"ON"
"ON"
FIELD PIPING
: High pressure liquid refr
iger
ant
: High pressure high temp
. gas refr
iger
ant
: Lo
w pressure lo
w temp
. liquid or gas refr
iger
ant
Y1E PI control
Y3E PI control
Y2S OFF
EV
A
: SC control EV
B
: SC control EV
C
: 80 pulse EV
H
: Full close
SV
SV
SER
VICE POR
T
FIL
TER
FIL
T
ER
FIL
T
ER
FIL
TER
FIL
T
ER
HEA
T EXCHANGER
COMPRESSOR
A
CCUMULA
T
OR
CAPILLAR
Y
TUBE
HIGH PRESSURE
SWITCH
SOLENOID
VA
LV
E
CAPILLAR
Y
TUBE
CAPILLAR
Y
TUBE
LO
W PRESSURE
SENSOR
HIGH PRESSURE
SENSOR
FOUR W
A
Y
VA
LV
E
SER
VICE
POR
T
OIL
SEP ARA
TO
R
ELECTR
ONIC
EXP
ANSION V
A
LVE
(Y1E)
DOUBLE PIPE
HEA
T EXCHANGER
ELECTR
ONIC
EXP
ANSION V
A
LVE
(Y3E)
PRESSURE
REGULA
T
ING V
A
LV
E
LIQ
UID LINE
ST
OP V
A
LV
E
GAS LINE
ST
OP V
A
LV
E
BP UNIT
ELECTR
ONIC
EXP
ANSION V
A
LVE(BYP
ASS)
FIL
TER
ELECTR
ONIC
EXP
ANSION V
A
LVE(R
OOM
A)
GAS SIDE
THERMIST
OR(DGB)
LIQ
U
ID SIDE
THERMIST
O
R(DLB)
LIQ
U
ID SIDE
THERMIST
O
R(DLA)
GAS SIDE
THERMIST
OR(DGA)
FIL
TER
FIL
TER
ELECTR
ONIC
EXP
ANSION V
A
LVE(R
OOM
B)
FIL
TER
FIL
TER
FIL
TER
FIL
TER
FIL
TER
LIQ
UID SIDE
THERMIST
O
R(DLB)
LIQ
UID SIDE
THERMIST
O
R(DLA)
GAS SIDE
THERMIST
OR(DGA)
GAS SIDE
THERMIST
OR(DGB)
ELECTR
ONIC
EXP
ANSION V
A
LVE(R
OOM
B)
ELECTR
ONIC
EXP
ANSION V
A
LVE(BYP
ASS)
ELECTR
ONIC
EXP
ANSION V
A
LVE(R
OOM
A)
FIL
TER
FIL
TER
FIL
TER
FIL
TER
LIQ
U
ID SIDE
THERMIST
OR(DLA)
LIQ
U
ID SIDE
THERMIST
OR(DLB)
LIQ
U
ID SIDE
THERMIST
OR(DLC)
GAS SIDE
THERMIST
OR(DGA)
GAS SIDE
THERMIST
OR(DGB)
GAS SIDE
THERMIST
OR(DGC)
ELECTR
ONIC
EXP
ANSION V
A
LVE(R
OOM
A)
ELECTR
ONIC
EXP
ANSION V
A
LVE(R
OOM
B)
ELECTR
ONIC
EXP
ANSION V
A
LVE(R
OOM
C)
ELECTR
ONIC
EXP
ANSION V
A
LVE(BYP
ASS)
FIL
TER
EV
H
EV
A
EV
B
EV
H
EV
A
EV
B
EV
H
EV
C
EV
B
EV
A
HEA
T EXCHANGER
F
AN MO
T
O
R
F
A
N MO
T
O
R
F
A
N MO
T
O
R
F
A
N MO
T
O
R
F
A
N MO
T
O
R
F
A
N MO
T
O
R
F
AN MO
T
O
R
HEA
T EXCHANGER
HEA
T EXCHANGER
HEA
T EXCHANGER
HEA
T EXCHANGER
HEA
T EXCHANGER
HEA
T
EXCHANGER
THERMIST
OR
HEA
T
EXCHANGER
THERMIST
OR
HEA
T
EXCHANGER
THERMIST
OR
HEA
T
EXCHANGER
THERMIST
OR
HEA
T
EXCHANGER
THERMIST
OR
HEA
T
EXCHANGER
THERMIST
OR
HEA
T
EXCHANGER
THERMIST
OR
HEA
T EXCHANGER
(Y2S)