Mitsubishi P120 Air Conditioner User Manual


 
[ V Electrical Wiring Diagram ]
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HWE09120 GB
V Electrical Wiring Diagram
[1] Electrical Wiring Diagram of the Outdoor Unit
1. Electrical wiring diagram of the outdoor unit
(1) PUHY-P72TJMU-A
HIC bypass,Controls refrigerant
flow in HIC circuit
G
Ground
G
Explanation
Symbol
<Symbol explanation>
1
SV5b
X05
3
6
CN506
1
6
3
X09
CN508
black
SV9
L3L2
L1
1
SV1a
For opening/closing the bypass
circuit
Subcooled liquid refrigerant
temperature
Terminal
block
Central control transmission
cable
Indoor/Outdoor transmission
cable
Power supply
Function setting connector
IGBT temperature
OA temperature
ACC inlet pipe temperature
Discharge pipe temperature
Thermistor
Pipe temperature
Outdoor unit heat exchanger
capacity control
4-way valve
Explanation
CN504
green
3
1
CH11
3
1
X03
CN503
blue
72C
2
1
X02
CN502
3
1
X01
CN02
Motor
(Compressor)
TB21
F2
AC250V
6.3A T
CN5V
yellow
CN22
red
31
Fan motor
(Heat exchanger)
U
21
CNT01
V
M
3
W
21
CN18V
blue
CNDC
pink
CN4
12 45
1
2
3
4
CN21
blue
1
2
3
4
5
CPU power
supply circuit
1
F01
AC250V
3.15A T
CN03
black
1313
6
2
M-NET power
supply
circuit
12
2
M-NET Board
*4
7
4
TH2
TH4
t
t
3
2
1
Indoor/Outdoor
transmission
cable
Central control
transmission
cable
63HS1
5
red
CNAC
63LS
3
TP2
2
CN2
1
Control Board
LEV1
LEV2
3
TH5
M
TP1
TH6
TH7
M
TH3
TB3
M1 M2 M1 M2 S
TB7
123
6
t
4512
1234
t
1
21S4b
t
2
FAN Board
LED1
Unit address setting
t
LED1Power supply to
ޓIndoor/Outdoor
ޓtransmission line
CN102
CNS2
yellow
SWU2
10's digit
SWU1
1's digit
10
1
10
1
10
1
10
1
SW4 SW3 SW2 SW1
ON
OFFON
OFFONOFF ON
X04
*3
LED3:Lit when powered
CN01
red
5
black
3
CNINV
1
3
CNVDC
CNIT
red
F01
AC250V
15A T
1
1
R630
3
6
5
4
3
1
2
C630
IPM
2
1
2
1
LED3:CPU in
operation
1
LED1:Normal
operation
2
1
1
OFF
2323123
blue
CN3N
yellow
CN3K
F01
AC250V
3.15A T
4521
OFF
432112 431
2
1
2
3
4
6
21
CNLVA
122131
CN801
yellow
CNT02
CN332
blue
CN4
2
1
2
2
3
3123
CN41CN102CN3D
4
1
red
CN3S
red
CNIT
yellow
CNS2
CN202
red
CN201
CN215
black
CN211
4321
Power selecting
connector
2
1
Z24
Z25
3
CNLVB
red
ON
CNTYP5
green
CNTYP4
green
CN990
CN40
LED2CPU in operation
CN212
CN213
red
TB1
L3L2
whitered
Noise Filter
F1
AC250V
6.3A T
W
CX6
CY3
V
black
SC-V
7
t
black
INV Board
RSH2
3
ZNR1
C32
red
black
CN6
SC-U
CN2
SC-T
MS
3
*5
CX5
C1
U
CN4
black
red
white
U
72C
31
R30
TB23
TB22
1
CT22
DSA1
black
1
CX2
CY1
CX1
Z3
CX3
Z4
Z1
U
SC-P2
3
CY2
CX4
black
white
*5
red
red
CT12
black
SC-W
1
SC-S
red
CT3
SC-R
red
R1
DCL
2
5
C31
C1
RSH1
U
C30
IGBT
CNDC
pink
LED1:Normal operation(Lit)
/Error(Blink)
2
1
2
THHS
1
L
TB-P
44
33
34
*5
13
14
23
43
24
white
red
white
CN501
21S4a
TB-N
SC-P1
1
P
63H1
Power supply
3
60Hz
208/230V
CN04
red
LED2:Error
U
Z2
U
ONOFF
1
10
SW5
12V
5
4
3
1
CN51
*3
Function setting
LED1
Display
setting
Compressor ON/OFF output
Error detection output
L1
Pressure
sensor
Pressure
switch
High pressure protection for the
outdoor unit
Discharge pressure
Low pressure
Magnetic relay(inverter main circuit)
Current sensor(AC)
Crankcase heater(for heating the compressor)
Linear
expansion
valve
DC reactor
SV9
TB1
TB3
TB7
TH3
TH4
TH5
TH6
TH7
THHS
Z24,25
21S4a
Symbol
63H1
63HS1
63LS
72C
CH11
CT12,22,3
LEV1
DCL
SV5b
Cooling/Heating switching
Heat exchanger capacity control
21S4b
TH2
Subcool bypass outlet
temperature
LEV2
Pressure control,Refrigerant flow
rate control
SV1a
Solenoid
valve
For opening/closing the bypass
circuit under the O/S
white
CNAC2
black
1
3
2
1
X72
CN505
black
A1
A2
Power
failure
detection
circuit
*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.