4. ELECTRICAL WIRING DIAGRAMS
DATA G10
OUTDOOR UNITS
2 - 70
Y
4. ELECTRICAL WIRING DIAGRAMS
+
-
+
+
+
+
2
1
+
+
+
+
+
3
3
2
2
Heat exchanger capacity control
Cooling/Heating switching
21S4b,c
*7
63HS1
SV9
SV5b,c
For opening/closing the bypass
circuit under the O/S
21S4a
4-way valve
Explanation
Symbol
63H1
63LS
Pressure
sensor
Pressure
switch
High pressure protection for the
outdoor unit
Discharge pressure
Low pressure
72C
Magnetic relay(inverter main circuit)
Current sensor(AC)
Crankcase heater(for heating the compressor)
CH1
1
CT12,22,3
HIC bypass,Controls refrigerant
flow in HIC circuit
Solenoid
valve
Linear
expansion
valve
LEV1
LEV2SV1a
DCL
DC reactor
Pressure control,Refrigerant flow
rate control
TB1
TB3
TB7
T
erminal
block
Central control transmission
cable
Indoor/Outdoor transmission
cable
Power supply
TH2
TH3
TH4
TH5
TH6
TH7
THHS
Function setting connector
IPM temperature
OA
temperature
Subcooled liquid refrigerant
temperature
ACC inlet pipe temperature
Discharge pipe temperature
Subcool bypass outlet
temperature
Thermistor
Z24,25
Pipe temperature
Outdoor unit heat exchanger
capacity control
For opening/closing the bypass
circuit
21S4c
X08
1
5
X07
SV5c
3
CN507
red
6
P200/P250/P300
EP200
Appliance
*7.Dif
ference of appliance
Model name
*7 do not exist
*7 exist
P350/P400
EP250
3
CN3
green
1
N
N
L
N
TB24
*1.Single-dotted lines indicate wiring not supplied with the unit.
*2.Dot-dash lines indicate the control box boundaries.
*3.Refer to the Data book for connecting input/output signal connectors.
*4.Daisy-chain terminals (TB3) on the outdoor units in the
same refrigerant system together
.
*5.Faston terminals have a locking function.
Make sure the terminals are securely locked
in place after insertion. Press the tab
on the terminals to remove them.
*6.Control box houses high-voltage parts.
Before inspecting the inside of the
control box,turn of
f the power
,keep
the unit of
f for at least 10 minutes,
and confirm that the voltage between
FT
-P
and FT
-N on INV Board has dropped
to DC20V or less.
L3
L1
L2
Power Source
3N~
50/60Hz
380/400/415V
21S4b
CN501
X01
1
3
X09
3
6
CN508
black
Unit address
setting
CN504
green
CT12
C31
C33
CN5
red
D1
R4
Z5
1
SV9
R631
white
TH2
t
°
C8
red
CNIT
yellow
CNS2
t
°
1
1
LED1
Display
setting
CN51
12V
Function
setting
SW1
10
1
CN212
CNTYP4
green
F4AC250V
6.3A
T
R5
F3
F1
Z4
R2
F2
*3
3
2
Compressor ON/OFF output
Error detection output
CN201
Z25
1
4
1
1
1
TH3
Z3
3
Z2
U
ON
OFF
SW2
10
1
SWU2
LED1
C4
C35
C37R31R33
R30
ON
SW3
10
Control Board
TH7
CN40
63HS1
CN41
TH6
t
°
t
TH4
3
2
2
2
1
SW5
LED3:Lit when powered
1
3
4
R32
2
Z1
1
DSA
C10
R34
R35
LEV1
LEV2
C36
3
C34
SC-V
CT22
SC-U
V
1
CN4
blue
red
1
M
1
1
t
LED3:CPU in
operation
black
4
1
CNTYP2
black
3
6
yellow
CN3K
*3
3
M
C3
TB21
C1
R3
3
CN1A
5
U
CN2
blue
CN3N
5
6
C7
U
4
4
R1
CN21
blue
TB1
1
CN1B
3
TB7 Power
selecting
connector
CN102
CNVDC
3
2
1
IPM
2
1
U
4
TP1
W
L3
DCL
V
black
72C
white
red
3
2
1
ON
OFF
1
M-NET
power
supply circuit
1
2
3
C6
M-NET
Board
1
2
1
Power failure
detection circuit
1
CNAC2
black
CN502
5
Indoor/Outdoor
transmission
cable
INV Board
red
3
CNT01
TB23
L2
L1
U
4
1
ON
1
2
1'sdigit
THHS
1
CNIT
red
S
2
1
1
CN990
1
3
W
TB3
10's
digit
OFF
LED2:CPU in operation
5
2
CNS2
yellow
TB7
1
CNDC
pink
M1
2
2
red
6
MS
3~
1
1
t
C100
*5
3
3
U
1
4
LED1:Power supply to
Indoor/Outdoor
transmission line
ZNR01
M2
32
M1
black
Central control
transmission
cable
*6
SC-L1
1
4
C2
C9
ON
C5
OFF
FT
-N
R5
M3~
Motor
(Compressor)
°
CN5V
yellow
5
2
3
3
3
red
CN3S
1
1
CN04
red
1
CN2
2
3
CN4
X05
2
2
Fan motor
(Heat exchanger)
SC-P2
P
1
CN21
1
CN202
red
TH5
°
N
CN1
M2
2
TP2
LED1:Normal operation(Lit)
/ Error(Blink)
2
CN503
blue
5
X04
4
*4
SC-W
U
C32
SC-L3
CH1
1
CN506
1
2
CN72
red
3
P
63H1
CN801
yellow
1
2
CN332
blue
F1,F2,F3
AC250V
6.3A
T
2
1
OFF
SW4
10
1
CNT02
1
1
CN3D
4
3
2
1
2
1
CPU power
supply circuit
CNAC
red
2
1
F01
AC250V
3.15A
T
1
t
ON
OFF
10
SWU1
white
CN213
red
SC-L2
3
Z24
7
4
°
3
2
1
1
2
2
7
1
2
CN5
1
CN4
red
CNINV
3
4
R630
1
1
C630
3
CN22
red
C631
5
F01
DC700V
4A
T
1
CNTYP5
green
4
LED2:Error
21S4a
1
LED1:Normal
operation
2
3
2
U
X02
X03
CN18V
blue
5
1
7
CN4
3
CN6
2
°
IPM
4
SC-P1
FT
-P
black
C30
red
DB1
CT3
72C
C1
CN2
CNTYP
black
R1
black
TB22
6
3
RSH1
CN102
3
R6
C1
1
1
1
1
F
AN Board
63LS
ZNR1
U
3
Noise
Filter
SV5b
red
CNL
V
A
CNL
VB
red
1
2
3
4
5
6
white
black
SV1a
6
4
3
2
1
2
1
L1
L2
L3
CN215
black
<Symbol explanation>
PUHY
-P200, 250, 300, 350, 400YJM-A(-BS)
PUHY
-EP200, 250YJM-A(-BS)
