Mitsubishi Electronics PKH18FL, PKH36FL, PKH24FL, PKH30FL service manual Wiring Diagram

7

WIRING DIAGRAM

MODELS PKH18FL, PKH24FL, PKH30FL, PKH36FL WIRING DIAGRAM

I.B

H

FS2 FS1

MF

MV

1 2 3

C

RED WHT BLK BLK WHT RED BLU

88H

1	RED 5		3 RED
2	BLU	6	4 BLU	TB2
			RED	L1	POWER SUPPLY
			BLU	L2	~(1PHASE)
			GRN/YLW	GR	AC208/230V 60Hz
(AC208/230V)		(DC13.1V)		GROUND
CNSK(RED)		CN2S (WHT) P.B
3	TRANS
			2		W.B
2
			1
1				BZ
					LED1
		6		LED2
			CNB		RU
					SW2
BLK WHT			9	SW1

(WHT)FAN 1 3 5

POWER

POWER

1 3 CNDK 1 3 CND

1 2

VANE

W.R

(WHT)

(RED) CN2D

CN6V

F2

F1

(WHT)

(WHT)

REMOTE

X4

CONTROLLER

LED1 LED2 WIRELESS

9

FC

X4

ZNR

CN90

4

(WHT)

SW3

SW9

CENTRALLY REMOCON

3

REMOCON

ON

ON

POWER

CONTROL

CN40

2

CN22

2

OFF

OFF

CN51

(BLU)

1

12

(WHT)

1

2345

BRN 3TB4 TRANSMISSION WIRES DC12V

SW2

SW5

SW8

SW1

SW6

SW7

HEATER

DRAIN

PIPE

INTAKE LOSSNAY

OUT

3

3

ON

ON

ON

CN24

CN31

CN21

CN20

DOOR

2

ORN 2

2

OFF

OFF

OFF

(YLW)

(WHT)

(WHT)

(RED)

CN2L CN30

YLW 1

1

1 2

1 2 3

1 2

1 2

(BLU)

1

123456 1

234

123456 12345678910

1234

123

YLW BWN

TB3

MODELS 18FL

24FL

30FL

36FL

OUTDOOR UNIT

SW7

ON

ON

ON

ON

RT2 RT1

OFF

OFF

OFF

OFF

26H

12 3

12 3

12 3

12 3

8 88H 7

5

GRY

[LEGEND]

6

GRY

SYMBOL

NAME

SYMBOL

NAME

P.B

INDOOR POWER BOARD

MV

VANE MOTOR

I.B

INDOOR CONTROLLER BOARD

TB2~TB6

TERMINAL BLOCK

CN2L

CONNECTOR(LOSSNAY)

RT1

ROOM TEMPERATURE THERMISTOR

CN51

CONNECTOR(CENTRALLY CONTROL)

(32˚F /15kΩ , 77˚F /5.4kΩ DETECT)

FC

FAN PHASE CONTROL

RT2

PIPE TEMPERATURE THERMISTOR/LIQUID

SW1

SWITCH(FUNCTION SELECTOR)

(32˚F /15kΩ , 77˚F /5.4kΩ DETECT)

SW2

SWITCH(ADDRESS SELECTOR)

W.R

WIRELESS REMOTE CONTROLLER

SW3

SWITCH(EMERGENCY OPERATION)

W.B

WIRELESS REMOTE CONTROLLER BOARD

SW5

SWITCH(MODEL SELECTOR)

RU

RECEIVING UNIT

SW6

SWITCH(TWIN/TRIPLE SELECTOR)

BZ

BUZZER

SW7

SWITCH(MODEL SELECTOR)

LED1

LED(RUN INDICATOR)

SW8

SWITCH(OPTION)

LED2

LED(HOT ADJUST)

SW9

SWITCH(MODEL SELECTOR)

SW1

SWITCH(HEATER ON/OFF)

X4

RELAY(FAN MOTOR)

SW2

SWITCH(COOLING ON/OFF)

F1,F2

FUSE(6A/250V)

HEATER

ZNR

VARISTOR

FS1,2

THERMAL FUSE

LED1

LED(DC12V POWER)

243˚F ,10A(18,24FL)/16A(30,36FL)

LED2

LED(DC5V POWER)

H

HEATER

C

CAPACITOR(FAN MOTOR)

26H

HEATER THERMAL SWITCH

MF

FAN MOTOR

88H

HEATER CONTACTOR

NOTES:

1.Since the indoor fan motor(MF)is connected with 230V power,if 208V power is used,change the dip switch(SW8)on

the indoor controller board as shown in fig:*1.

fig:*1

SW8

ON

SW8

Indoor fan motor(MF)for 208V.

ON

OFF

OFF

123456

123456

2.Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing. 3.Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers.

4.Symbols used in wiring diagram above are, :Connector, :Terminal block. 5.Emergency operation

If remote controller or microcomputer fails but there is no other trouble emergency operation is possible by setting dip switch(SW3<I.B>) on the indoor controller board.

[Check items]

(1)Make sure that no other trouble exist in the outdoor unit.Trouble with the outdoor unit prevents emergency operation.

(2)Make sure that there is no trouble with the indoor fan.

Emergency operation will be continuous run with the power ON/OFF(ON/OFF with the remote controller is not possible).

[Emergency operation procedure]

(1) Set the dip switch(SW3<I.B>)on the indoor controller board to 1 on and 2 off for cooling and 1 • 2 on for heating.

(2)Turn on outdoor unit side circuit breaker,then indoor unit side circuit breaker.

(3)During emergency operation indoor fan runs at high speed but auto-vane does not work.

(4)Thermostat will not function.Cold air blows out for defrosting during heating thus do not operate defrosting for a long time.

(5)Emergency cooling should be limited to 10 hours maximum (the indoor unit heat exchanger may freeze).

(6)After every emergency operation,set all dip switches(SW3<I.B>) to OFF.

(7)Movement of the vanes does not work in emergency operation,therefore you have to slowly set them manually to the appropriate position.

	RG79J693H02
19	The drawing has been revised as some errors in
	WIRING DIAGRAM have been modified.

The former drawing number is RG79J693H01.