13
5. Electrical Wiring Diagrams
PUHY-P250YGM-A (Connected with PFD series)
*1
*1
–
~ ~
+
~
+
+
X01
Compressor
CN3D
OPEN
SHORT
ON
OFF
CN3D
1-2P
SHORT
OPEN
ON
OFF
NIGHT
MODE
1-3P
ON/OFF
Radiator panel temp. detect(Fan)
THHS5
CNCT
yellow
orange
red
brown
A2
A1
TH11
TH5
TH6
TH7
TH8
Z20
DC Current Sensor
DCCT
1 2 3 4
Power selection connector
CN41
CN40
1 2 3 4
1 2 3 4
1 2 3 4
DCCT
5
9
1
1 2
2 3
4
1
6
5
CNINV
LED1 operation
LED2 error
Compressor ON/OFF
Trouble
Low pressure sensor
CNRS3A
High pressure sensor
CN3S
red
CNVCC1
CN3D
SW1
Earth terminal
SW2
SW3
SW4
LD1
ON
ON
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
SW5
1
Radiator panel temp. detect (Compressor)
Control circuit board
10
2
1
5 6
9
13 14
SWU2
Address setting
SWU1
CN52C
yellow
green
red
X09
CNS2
blue
CNS1
blue
3
CN20
CN21
blue
13
F02
250VAC
6.3A T
1 2 3 4 5
1 2 3
3
TB1
(Terminal Block)
Power source
3N
~
380/400/415V
50/60Hz
black
red
52C1
DCL
C2
red
14
DS1
(Diode stack)
white
black
10
CNDC2
N
IPM
P
C4
MC1
Gate amp board 1
ACCT
-W
9
ACCT
ACCT-U
X52
U V W
FAN control board
CNVDC
10
C1
R4
R3
R1
R2
ACNF1
(Noise Filter)
E
Filter board
CNFG
blue
L2
CNL1
CNL2
CNOUT
green
CNIN
blue
C5
ZNR4
SWU3
0
1
2
CN15V1
CNDC1
black
CNDR1
bypass outlet temp.detect at Sub-cool coil
CNVCC1
CNAC2
MF1
CNFAN
red
SW2
SW1
1 4
1 6
CNAC3
LED1 operation
LED2 error
CNFG
blue
CNCT2
blue
black
CNTH
green
THHS1
red
7
CNRS1
Power circuit board 1
CNDC2
CN15V2
CNDR2
TB3
(Terminal Block)
M1
M2
S
M2
M1
TB7
(Terminal Block)
1
1 2
shield
F02
700VDC
2A T
red
white
black
blue
red
white
black
blue
red
black
Motor
(Compressor)
F01
250VAC
2A T
Refer to the service handbook
about the switch operations.
CENTRAL CONTROL
TRANSMISSION LINE
CNRS2
Inverter controller box
Function device
liquid outlet temp.detect at Sub-cool coil
Discharge pipe temp. detect
OA temp.detect
Pipe temp.detect(Hex outlet)
Choke coil(Transmission)
Thermistor
High pressure switch
4-way valve
Electronic expansion valve (SC coil)
Solenoid valve (Heat exchanger capacity control)
Solenoid valve (Discharge-suction bypass)
Magnetic contactor (Inverter main circuit)
Crank case heater(Compressor)
Z20
L1,L2
63LS
DC reactor (Power factor improvement)
63HS
63H1
THHS1
TH5
CN35
<Symbol explanation>
TH11
TH8
LEV1
1
THHS5
L3
L2
CNTH
green
1 2
2
3
2
1
1 2
ON
OFF
4
ON
OFF
1 2
4
8
3
L1
1
1
L3
L2
L1
2
1
1
2
2
1 2
3
1 2
3 4 5
1
9
1
N
1
2
3
4
1 2 3
4
1
9
2
1
3
2
1
CNRS3B
CNTR
Symbol
CN38
black
SV5b
21S4a,b
CH11
MF1
52C1
DCL
SV1
ACCT
1
Name
3
63H1
INDOOR/OUTDOOR
TRANSMISSION LINE
CN04
AC Current Sensor
1
12V
CN51
2 1
W
3 2
V
Function setting
5
1 2 3
1 2 3
4
3
CH11
X03
X08
CN32
X02
CN33
CN36
SV
5b
2
1
21S
4a
21S
4b
2
7
1
7
8
1
3
1
1
10
1
10
1
10
1
1
10
3
2
N
L3
F01
250VAC
6.3A T
red
white
black
CNTYP5
CNH
CNTYP4
CN01
CNL
black
CNTYP1
red
CN02
1
R23
63HS
R22
63LS
7
2 1
6
3
2 1
3 2 1
2 1
2 1
U
CNLVB
red
detection
circuit
LEV1
7
L1
54
12
2
3
32
1
black
white
red
Function setting
detection
circuit
6
5
4
1
3
LD2
Maintenance
setting
8
N
red
white
blue
4
2
4 3
2
3
1
8 7
6 5
white
detection
circuit
MF
Fan motor
(Heat exchanger)
W
1
3
2
TH7
SV1
shield
PE
L1
SW4-7:OFF (Compressor ON/OFF
and NIGHT MODE)
TH6
8
1
1
V
U
X11
123
NOTE:The broken lines indicate field wiring.
X01
*1: Function according to switch operation.
(SW4-7,CN3D 1-2P,and CN3D 1-3P)
1
52
C1
2
Fan motor (Radiator panel)
T01
(Transformer)
black
Compressor ON/OFF
NIGHT MODE
SNOW
1
L2
1
