Mitsubishi P120 User Manual

[ 

V  Electrical Wiring Diagram ]

- 80 -

HWE09120

GB

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

CH1

1

CN501

3

X04

21S4a

CN504 green

3

1

1

6

3

X05

CN506

SV5b

For opening/closing the bypass

circuit

Subcooled liquid refrigerant temperature

T

erminal

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

t°

1

1

2

3

2

1

3

2

1

CN202

 red

1

2

1

63HS1

CN21

1

TH4

3

1

TH2

1

2

2

3

4

1

2

1

TH5

t°

CN990

CN212

CN213

  red

Z25

Z24

CNTYP4

green

CNL

VB

 red

1

1

3

red

CNIT

4

Explanation

CN03

black

yellow

 CNS2

*3

3

2

OFF

1

2

red

CN3S

5

123

21
32

yellow

 CN3K

1

2

33

3

4

F01

AC250V

3.15A

 T

LEV1

21

1

blue

CN3N

Pressure sensor

M

M

LEV2

CNL

V

A

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

F

AN 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

3
1

R2

R1

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

1

1

CNDC3

pink

2

CNFG

blue

3

t°

Low pressure

SWU2

Central control

transmission

cable

4

t°

4

25

Indoor/Outdoor

transmission

cable

10's digit

1

CNIT

red

S

TP2

 CNS2

yellow

1

2

TP1

2

Magnetic relay(inverter main circuit)

TB7

3

F01

AC250V

3.15A

 T

4

5

M-NET

 power

supply  circuit

1

2

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

t°

3

1

CN4

LED2:Error

TH6

CN41

CN21

blue

t°

THHS

Z26

4

black

31

21

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

t°

LED1

Display

setting

3

Function setting

CN51

12V

10

1

5

3

6

TH7

P

CN2

5

TH3

Unit address setting

1

CN332

blue

2

1

1

1

3

1

1

2

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

black

white

red

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

CH1

1

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