Mitsubishi Electric PKFY-P50VGM-A Service Manual download pdf (Page 19)

19

8-3. TEST POINT DIAGRAM

8-3-1. Indoor controller board

PKFY-P32VHM-E PKFY-P32VHM-ER1

PKFY-P40VHM-E PKFY-P40VHM-ER1

PKFY-P50VHM-E PKFY-P50VHM-ER1

CN3A

Connected to the termial

block (TB15)

(MA-Remote controller

connecting wire)

1 - 3 : 8.7-13V DC

(Pin1 (+))

CN44

Pipe temperature thermistor

1-2 : Liquid (TH22)

3-4 : Gas1 (TH23)

SW4

Model selection

CND

Power supply for

indoor controller board

1-3 : 220-240AC

SW2

Capacity setting

LED1

Main power supply

(Indoor unit :

220-240V)

CN20

Room temperature

thermistor (TH21)

LED2

Power supply for

MA-Remote controller

CN32

Remote switch

Jumper wire J41, J42

Pair No. setting for wireless

remote controller

LDSWE(A)

Connect to the

wireless remote

controller board

(S.B)

CN2M

Connect to the

terminal block (TB5)

(M-NET transmission

connecting wire)

24-30VDC (non-polar)

Power supply from

outdoor unit

SW3

Function setting

CN2G

Pipe temperature

thermistor

Gas2 (TH24)

CN4F

Drain float switch

(FS)

CN51

Centrally control-

led

CN60

Liner expansion

valve (LEV) output

12VDC pluse output

CN52

Remote indicator

CNRU

Connect to the

wireless remote

controller board

(W.B)

CN151

Vane motor output

12VDC pluse

CNP

Drain pump output

(DP)

1-3 : 220-240AC

FUSE

3.15A 250V

CNMF

Connect to the fan motor (MF)

1-3 : DC310~340V

4-3 : DC15V

5-3 : DC0~6V

6-3 : DC0 or DC15V (Stop)

DC7.5V (Operation)

(12VDC pluse)

LD SWE (B)

Connect to the indoor

controller board (I.B)

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