Installation manual
[ V Electrical Wiring Diagram ]
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HWE10050 GB
(2) PURY-EP350, P450YJM-A
+
-+
++
+
2
1
+
++
++
23
23
L3L2L1
CN3
green
1
3
Noise
Filter
C11
R6
3
TB22
DB1
U
F1,F2,F3
AC250V
6.3A T
U
C5
C9
C2
1
1
1
L1 L2
TB23
5
C6
L3
U
3
CN1B
TB1
R1
U
C7
6
CN2
CN1A
R3
C1
TB21
C3
3
3
1
black
red
CN4
blue
C10
DSA
1
Z1
4
C4
U
Z2 Z3
F2
R2
Z4
F1
F3
R5
F4
AC250V
6.3A T
C8
white
Z5
R4
D1
CN5
red
Power Source
3N~
50/60Hz
380/400/415V
L2
L1
L3
N
TB24
L
N
N
Contactor
Box
1
2
black
8
7
5
red
white
U
M
3~
V
W
4
8
Heat exchanger capacity control
Cooling/Heating switching
21S4b
A2
A1
5
red
white
black
7
CN12
2
1
CN11
M
3~
U
V
W
Fan motor 2
(Heat exchanger)
Fan motor 1
(Heat exchanger)
U
V
W
red
white
black
52F
T
S
R
Contactor Box
*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 off the power,keep
the unit off 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.
Magnetic contactor(FAN)
52F
X11
X12
3
5
6
1
CN509
blue
X06
1
5
SV5b
SV5c
1
X01
CN510
yellow
52F
X09
3
6
5
1
CN508
black
Unit address
setting
CN504
green
CT12
C31
C33
SV4b
CN501
3
R631
1
1
6
red
CNIT
yellow
CNS2
t
°
1
1
LED1
Display
setting
CN51
12V
Function
setting
SW1
10
1
CN212
CNTYP4
green
*3
3
2
Compressor ON/OFF output
Error detection output
CN201
Z25
1
4
1
1
1
TH3
3
ONOFF
SW2
10
1
SWU2
LED1
C35
C37
R31
R33
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
R32
2
R34 R35
C36
3
C34
SC-V
CT22
SC-U
V
1
1
1
1
t
LED3:CPU in
operation
4
CNTYP2
black
6
yellow
CN3K
*3
3
5
U
blue
CN3N
544
CN21
blue
1
3
TB7 Power
selecting
connector
CN102
CNVDC
2
1
IPM
2
1
4
TP1
DCL
black
72C
white
red
321
ON
OFF
1
M-NET power
supply circuit
123
M-NET Board
12
1
Power failure
detection circuit
1
CNAC2
black
CN502
Indoor/Outdoor
transmission
cable
INV Board
red
3
CNT01
4
ON
2
1's
digit
THHS
1
CNIT
red
S
2
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
SV4d
ZNR01
M2
32
M1
black
Central control
transmission
cable
*6
SC-L1
1
4
ONOFF
FT-N
R5
Motor
(Compressor)
°
CN5V
yellow
5
2
3
3
3
red
CN3S
1
CN04
red
1
CN2
2
3
CN4
X05
2
2
SC-P2
P
1
CN211
CN202
red
TH5
°
N
CN1
M2
2
TP2
SV4c
LED1:Normal operation(Lit)
/ Error(Blink)
2
CN503
blue
5
X04
4
*4
SC-W
C32
SC-L3
CH11
CN506
1
2
CN72
red
3
P
63H1
CN801
yellow
1
2
CN332
blue
21
OFF
SW4
10
black
1
CNT02
11
CN3D
432
1
21
CPU power
supply circuit
CNAC
red
2
1
F01
AC250V
3.15A T
1
t
CN507
red
ONOFF
10
SWU1
white
CN213
red
SC-L2
3
Z24
7
4
°
3 21122
7
1
2
CN5
1
CN4
red
CNINV
3
R630
1
1
C630
white
3
red
CN22
red
C631
5
F01
DC700V
4A T
1
CNTYP5
green
4
LED2:Error
21S4a
1
LED1:Normal
operation
2
3
2
X02
X03
CN18V
blue
5
1
7
CN4
3
CN6
2
°
IPM
4
SC-P1
FT-P
black
C30
red
CT3
72C
C1
CN2
CNTYP
black
R1
black
6
3
RSH1
CN102
1
1
1
FAN Board
63LS
ZNR1
U
3
X08
SV4a
SV9
X07
3
5
6
SV1a
21S4b
X14
DCL
SV1a
SV4a,b,c,d
CT12,22,3
CH11
72C
63LS
63HS1
63H1
Symbol
21S4a
Z24,25
THHS
TH7
TH6
TH5
TH4
TH3
TB1
DC reactor
Solenoid
valve
Crankcase heater(for heating the compressor)
Current sensor(AC)
Magnetic relay(inverter main circuit)
Low pressure
Discharge pressure
High pressure protection for the
outdoor unit
Pressure
switch
Pressure
sensor
Explanation
4-way valve
For opening/closing the bypass
circuit under the O/S
Heat exchanger capacity control
Liquid pipe temperatureThermistor
Discharge pipe temperature
ACC inlet pipe temperature
OA temperature
IPM temperature
Function setting connector
Power supply
Terminal
block
Heat exchanger inlet pipe
temperature
For opening/closing the bypass circuit
SV5b
Heat exchanger low pressure bypass
SV5c
For opening/closing the bypass circuit
SV9
Indoor/Outdoor transmission cable
TB3
Central control transmission cable
TB7
<Symbol explanation>
PURY P450YJM A( BS)
PURY-EP350YJM-A(-BS)