Mitsubishi P120 Air Conditioner User Manual


 
[ V Electrical Wiring Diagram ]
- 80 -
HWE09120 GB
(2) PUHY-P96TJMU-A
LED1:Normal operation(Lit)
/Error(Blink)
LED4:CPU in
operation
ON
CN5V
yellow
3
1
OFF
SW1
6
1
Function
setting
HIC bypass,Controls refrigerant
flow in HIC circuit
G
G
Ground
G
Explanation
Symbol
DCCT1 Current sensor(DC)
21S4b
X01
1
CN502
X02
1
2
CN503
blue
X03
1
3
CH11
CN501
3
X04
21S4a
CN504
green
3
1
1
6
3
X05
CN506
SV5b
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
CN04
red
4-way valve
LED2:CPU in operation
CN3D
2
CN40
ON
LED3:Lit when powered
2
1
1
2
3
2
1
3
2
1
CN202
red
1
2
1
63HS1
CN211
TH4
3
1
TH2
1
2
2
3
4
1
2
1
TH5
CN990
CN212
CN213
red
Z25
Z24
CNTYP4
green
CNLVB
red
1
13
red
CNIT
4
Explanation
CN03
black
yellow
CNS2
*3
3
2
OFF
1
2
red
CN3S
51232132
yellow
CN3K
1
2
33
3
4
F01
AC250V
3.15A T
LEV1
21 1
blue
CN3N
Pressure
sensor
M
M
LEV2
CNLVA
1
2
2
Pressure
switch
CN102
2
CN18V
blue
High pressure protection for the
outdoor unit
LED3:CPU in
operation
F01
AC250V
15A T
LED3:Charge
2
4
1
C630
W
IPM
72C
CN03
black
~~~
C41
black
DSA1
IPM
FAN Board
CY2
Z4
U
CY3
CY1
CX6
CX4
U
Z2
Z3
TB23
U
CX1
-
1
Discharge pressure
F3
AC250V
6.3A T
CNDC2
1
*5
INV Board
SC-P1
CN02
Z5
Noise
Filter
TB42
3
CNCT
31
R2R1
DCL
72C
red
+
+
Diode Stack
U
*4
U
CX3
ACCT3
CNTYP
1
3
CN505
black
LED1
Power
failure
detection
circuit
CNDC
pink
X72
5
1
CNT02
black
CNIPM
W
F02
AC250V
3.15A T
ACCT1
V
C008
CNDC1
N
P
C007
U
white
1
1
TB3
red
V
IPM power
supply
circuit
CN2
CNCT3
black
LED1:Normal
operation
CN4
Power supply
3~
60Hz
208/230V
11
CNDC3
pink
2
CNFG
blue
3
Low pressure
SWU2
Central control
transmission
cable
4
4
25
Indoor/Outdoor
transmission
cable
10's digit
1
CNIT
red
S
TP2
CNS2
yellow
12
TP1
2
Magnetic relay(inverter main circuit)
TB7
3
F01
AC250V
3.15A T
45
M-NET power
supply
circuit
12
1
CN102
black
black
Current sensor(AC)
M-NET Board
4
3
2
Crankcase heater(for heating the compressor)
3
4
CNINV
2
6
1
CNTYP5
green
2
4
CN4
3
2
3
Error detection output
1
1
CN215
black
CN201
63LS
3
1
CN4
LED2:Error
TH6
CN41
CN21
blue
THHS
Z26
4
black
3121
SWU1
2
1
CNTH
green
3
7
5
2
1
white
U
1
red
1's digit
CX2
3
Compressor ON/OFF output
SW5
M
3~
U
Control Board
23
3
41
CNAC
red
1
7
5
2
63H1
CN801
yellow
*3
2
LED1
Display
setting
3
Function setting
CN51
12V
10
1
5
3
6
TH7
P
CN2
5
TH3
Unit address setting
1
CN332
blue
211131
12
4
3
2
4
2
1
Linear
expansion
valve
R630
2
1
CNVDC
2
Power selecting
connector
Fan motor
(Heat exchanger)
1
3
DC reactor
1
SV9
TB31
1
6
5
4
3
R01
2
2
CNCT2
blue
4
Motor
(Compressor)
TB1
C1
DCCT1
ACCT2
FT-N
TB3
TB7
Z1
TB21
TH3
TH4
TB22
L
F2
AC250V
6.3A T
1
F1
AC250V
6.3A T
5
blackwhitered
TH5
TH6
TH7
THHS
3
Z24,25,26
CN01
L3
L3
L2
L2
L1
TB1
W
CNAC2
black
*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.
L1
21S4a
Symbol
63H1
63HS1
63LS
72C
CH11
ACCT1,2,3
LEV1
DCL
<Symbol explanation>
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
SW1
OFF
10
ON OFF
CNT01
CX5
ON
10
1
SW2
OFF
10
ON
1
SW3
OFF ON
10
1
SW4
OFF ON
4
1
1
LED1:Power supply to
Indoor/Outdoor
transmission line
4
2
1
1
V
red
MS
3~
CN22
red
1
2
4
6
1
6
3
SV9
CN508
black
X09
M1 M2 M1 M2
CPU power
supply circuit
Outdoor unit heat exchanger
capacity control
SV5b
SV1a