10-2. Outdoor unit

Positions to be checked on the interface P.C. board (MCC-1429)

BUS terminal Terminator resistor select SW30

SV61

CN309

SW41/42

CN311

SV51

CN310

SV2

CN312

SV3A

CN324

SV3B

CN313

SV3C

CN314

SV11

CN322

Dina-doctor connecting terminal CN800

SV12

CN319

Case heater 1

Case heater 2

Accumulator heater

SV3D SV3E

CN323

 

 

CN03 backup

For outdoor unit cable

CN01

between outdoor units

For inter-unit cable between

CN03

indoor and outdoor units

Pressure sensor (Ps)

 

 

 

Pressure sensor (Pd)

 

 

CN01 backup

UART

 

 

RMV

 

 

communication

 

 

CN300,301

CN600

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-way valve

Comp. case

 

 

CN317

 

SW06 to 14

thermo 2 input

Comp. case thermo

 

 

SW01,02,03

CN307

1 input

 

 

SW04,05,15

CN305

 

 

 

7-segment LED

Option input/output CN508,509,510, 515,501,512

Jumper select

Sensor input

TD1 ,CN502

TD2 ,CN503

TK1 ,CN514

TK2 ,CN515

TK3 ,CN516

TK4 ,CN523

TE1 ,CN505

TL ,CN521

TS1 ,CN504

TO ,CN507

TS2 ,CN522

5V

GND

12V

3.3V

Connection of power supply transformer CN100

Option input/output CN511

High pressure swith1

High pressure swith2

For transformer power supply CN401,402

For expansion BUS power supply CN325

L1, L2, L3, N-phase input CN400

184

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Image 184
Toshiba MMU-AP0091H service manual 184, SV3D SV3E, Uart, Rmv, Gnd