PMFY-NBMU TechService OC341E 6-10 · 9 9 9 9 10 10 10 10 ON OFF Mark Meaning Function Power supply for MA-Remote controller Main power supply (Indoor unit:208-230V)

10

6W

IRIN

G D

IAG

RA

M

Note

1. At servicing for outdoor unit, always follow the wiring diagram of outdoor unit.

2. In case of using MA-Remote controller, please connect to TB15. (Remote controller wire is non-polar.)

3. In case of using M-NET, please connect to TB5. (Transmission wire is non-polar.)

4. Symbol [S] of TB5 is the shield wire connection.

5. Symbols used in wiring diagram above are, : terminal block, :connecter.

6. The setting of the SW2, SW3 dip switches differs in the capacity. For the detail, refer to fig. 1.

7.Please set the switch SW5 according to the power supply voltage.

CN51

CN52

SW2

SW3

SW4

A.B Address board

SW1

SW5

SW11

SW12

Mode selection

Voltage selection

Address setting 1s digit

Address setting 10ths digit

SW14 Branch No.

Centrally control

Remote Indication

Switch

Switch

Capacity code

Mode selection

Model selection

ZNR Varistor

X1 Aux.relay Drain pump

FUSE Fuse (6A / 250V)

LED1 Power supply (I.B)


T Transformer

TH21

MF

MV

Thermistor Room temp. detection

(32ûF/15k , 77ûF/5.4k )

Pipe temp. detection / Liquid

(32ûF/15k , 77ûF/5.4k )

Pipe temp. detection / Gas

(32ûF1/15k , 77ûF/5.4k )

LEV Linear expansion valve

TH22

TH23Fan motor (with inner thermo)

Vane motor

TB15 MA-Remote Controller

[Legend]

Symbol Name

I.B Indoor controller board

CN25

CN27

CN32

Connector Humidifier

Damper

Remote switch

Symbol Name Symbol Name

DS

DP

Drain sensor

Drain pump

TB2

TB5 Transmission

Terminal

block

Power supply

Models

P06

P08

P12

P15

SW2

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

SW3

1 2 3 4 5 6 7

ONOFF

1 2 3 4 5 6 7

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

7

7

8

8

8

8

9

9

9

9

10

10

10

10

ONOFF

<fig. 1>

Mark Meaning Function

Power supply forMA-Remote controller

Main power supply (Indoor unit:208-230V)Power on Lamp is lit.

LED on indoor board for service

LED1 Main power supply

Power supply for MA-Remote controlleron Lamp is lit.

LED2

12345

5

6

MF FAN(WHT)

LED2

LED1

21 (BLU)

(M-NET)CN2M

BLU

BLU

TB5

M1

M2

TB2

PULL BOX

FUSE(15A)

BREAKER

(15A)

L1

L2

S(SHIELD)TO OUTDOOR UNIT

BC CONTROLLER

REMOTE CONTROLLER

DC24-30V

23

1 CN3A(BLU)

ORN

ORN

TB151

2

TO MA-REMOTE

CONTROLLER

DC8.7-13V

POWER SUPPLY

~ / N 208—230V 60Hz

TO NEXT INDOOR UNIT

3 2 1(BLK)GASCN29

2 1(WHT)LIQUIDCN21

2 1

DS TH23 TH22

(RED)INTAKECN20

(WHT)LEV

CN60

(GRN)REMOTE

INDICATIONCN52

2 1 6 5 4 3 2 1

15

(GRN)VANECN6V

6 5 4 3 2 1 2 1

1 2 3 4 5

TH21

(WHT)DRAINCN31

6

LEV MV

CN25

2 1

CN27

876543

43

3

21

1

21

12

34

56

78

910

SW

3

12

34

56

SW

2

12

34

5

SW

4O

N

OF

F

ON

OF

F

ON

OF

F

(RED)ADDRESS

CN81

(RED)ADDRESS

CN42

(WHT)REMOTESWITCH

CN32

3212 13

DP

X1

X1

(WHT)CNP

CND(RED)

FUSE250V

6A

T

BR

N

RE

D

OR

N

YLW

GR

N

BLU

BR

N

OR

N

YLW

RE

D

WH

T

(WHT)CENTRALLYCONTROL

CN51

15

RED

BLU

GRN / YLW

See fig. 1

8 7 6 5 4 3 2 1

4 3 2 1

8

4

0

SW

14

SW

C

BR

AN

CH

No.

0

SW

11

1s

DIG

IT

0

SW

12

10th

sD

IGIT

12

34

56

78

910

SW

1

SW

5

230V

208V

(RED)ADDRESS

CN82

(RED)ADDRESS

CN43

A.B

I.B

GR

< 2>

( 2) Use copper supply wire.

PM

FY

-P06N

BM

U-E

PM

FY

-P08N

BM

U-E

PM

FY

-P12N

BM

U-E

PM

FY

-P15N

BM

U-E

11

Note



3. In case of using M-NET, please connect to TB5. (Transmission line is non-polar.)


5. Symbols used in wiring diagram above are, : terminal block, :connector.

6. The setting of the SW2, SW3 dip switches differs in the capacity. For the detail, refer to fig. 1.

7. Please set the switch SW5 according to the power supply voltage.

CN51

CN52

SW2

SW3

SW4

A.B Address board

SW1

SW5

SW11

SW12

Mode selection

Voltage selection



SW14 Branch No.

Centrally control

Remote Indication

Switch

Switch

Capacity code

Mode selection

Model selection

ZNR Varistor


FUSE Fuse (6A / 250V)

LED1 Power supply(I.B)

LED2 Power supply(I.B)

T Transformer

TH21

MF

MV


(32ûF/15k , 77ûF/5.4k )


(32ûF/15k , 77ûF/5.4k )


(32ûF/15k , 77ûF/5.4k )


TH22

TH23Fan motor

Vane motor


[Legend]

Symbol Name


CN25

CN27

CN32


Damper

Remote switch

Symbol Name Symbol Name

DS

DP

Drain sensor

Drain pump

TB2

TB5 Transmission

Terminal

block

Power supply

Models

P06

P08

P12

P15

SW2

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

SW3

1 2 3 4 5 6 7

ONOFF

1 2 3 4 5 6 7

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

7

7

8

8

8

8

9

9

9

9

10

10

10

10

ONOFF

<fig. 1>



Main power supply (Indoor unit:208-230V)Power on Lamp is lit.



Power supply for MA-Remote controlleron Lamp is lit.

LED2

6

1

3MS3~MF FAN

(WHT)

LED2

LED1

2

1 (BLU)(M-NET)CN2M

BLU

BLU

TB5

TB2

PULL BOX

FUSE

(15A)

BREAKER

(15A)

(SHIELD)

TO OUTDOOR UNIT

BC CONTROLLER

REMOTE CONTROLLER

DC24-30V

CN3A(BLU)

ORN

ORN

TB15TO MA-REMOTE

CONTROLLER

DC8.7-13V

POWER SUPPLY

~ / N 208-230V 60Hz

TO NEXT INDOOR UNIT

(BLK)GASCN29

(WHT)LIQUIDCN21

DS TH23 TH22

(RED)INTAKECN20

(WHT)LEVCN60

(GRN)REMOTE

INDICATIONCN52

15

(GRN)VANECN6V

6 16 1

1 5

2 12 12 12 13 1

TH21

(WHT)DRAINCN31

LEV

M M

MV

CN252 1CN27 8

4

1

1

12

34

56

78

910

SW

3

12

34

56

SW

2

12

34

5

SW

4O

N

OF

F

ON

OF

F

ON

OF

F

(RED)ADDRESS

CN81

(RED)ADDRESS

CN42

(WHT)REMOTESWITCH

CN32

M1~

DP

X1

(WHT)CNP

CND(RED)

FUSE

T

BR

N

RE

D

OR

N

YLW

GR

N

BLU

BR

N

OR

N

YLW

RE

D

WH

T

(WHT)CENTRALLYCONTROL

CN51

15

RED

BLU

GRN / YLW

See fig. 1

8 1

4 1

8

4

SW

14

SW

C

BR

AN

CH

No.

SW

11

1s

DIG

IT

SW

12

10th

sD

IGIT

12

34

56

78

910

SW

1

SW

5

230V

208V

(RED) ADDRESSCN82

(RED)ADDRESS

CN43

A.B

I.B

< 2>

< 2>Use Copper Supply Wire.

t° t° t° t°

3

1

3

1

313 1

1

2

L1

L2

GR

U

M1

M2

S

01

2

3456 78

9A

BCDEF

01

2 3

45

6

78

90

1

2 3

45

6

78

9

PM

FY

-P06N

BM

U-E

1 PM

FY

-P08N

BM

U-E

1 PM

FY

-P12N

BM

U-E

1 PM

FY

-P15N

BM

U-E

1

12

Note

1. At servicing for outdoor unit, always follow the wiring diagram

of outdoor unit.

2. In case of using MA-Remote controller, please connect to

TB15. (Remote controller wire is non-polar.)

3. In case of using M-NET, please connect to TB5.

(Transmission line is non-polar.)


5. Symbols used in wiring diagram above are, : terminal

block, :connector.

6. The setting of the SW2, SW3 dip switches differs in the capacity.

For the detail, refer to fig. 1.

7. Please set the switch SW5 according to the power supply

voltage.

CN51

CN52

SW2

SW3

SW4

SWE A.B Address board

SW1

SW5

SW11

SW12

Mode selection

Voltage selection



SW14 Branch No.

Centrally control

Remote Indication

Switch

Switch

Capacity code

Mode selection

Model selection

DRAIN UP MACHINE(TEST MODE)

ZNR Varistor


FUSE Fuse (T6.3AL 250V)



TH21

MF

MV


(32°F/15k , 77°F/5.4k )


(32°F/15k , 77°F/5.4k )


(32°F/15k , 77°F/5.4k )


TH22

TH23

Fan motor

Vane motor


[Legend]

Symbol Name


CN25

CN27

CN32


Damper

Remote switch

Symbol Name

DS

DP

Drain sensor

Drain pump

TB2

TB5 Transmission

Terminal

block

Power supply

Models

P06

P08

P12

P15

SW2

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

SW3

1 2 3 4 5 6 7

ONOFF

1 2 3 4 5 6 7

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

7

7

8

8

8

8

9

9

9

9

10

10

10

10

ONOFF

<fig. 1>



Main power supply (Indoor unit:208-230V)Power on Iamp is lit



Power supply for MA-Remote controlleron Iamp is lit

LED2

< 2> Use Copper Supply Wire.

SWE

ON OFF

GR

CN2M(BLU)

M-NET

CN3A(BLU)

REMOCON

TB5

(SHIELD)

M1 M2TB2

TB15

1 S

TH23

TH22

CN20(RED)

INTAKE

CN60(WHT)

LEV

CN52(GRN)

REMOTEINDICATION

CN6V1(GRN)

VANE

TH21

CNMF2(WHT)

CNMF1(WHT)

CN31(WHT)

DRAIN

CN44(WHT)

LIQUID/GAS

CN25(WHT)

CN27(RED)

ADDRESS

CN81 (RED)

CN42(RED)

ADDRESS

CN32 (WHT)

REMOTE SWITCH

X1

CNP(YLW)

D.U.M

CND (BLK)

FUSE

DSA

ZNR01DC311~339V

ZNR02U

CN51 (WHT)

CENTRALLYCONTROL

CN41(WHT)

HA

48

5

5

LEV

M

DS

DP

t°

t°

t°

t°

2L1 L2

1 2 3 4 5 6 7 8 910

SW3

1 2 3 4 5 6

SW2

1 2 3 4 5

SW481

5 1

51 3

6

1

6

1

5

1

4

1

2

1

2

1

2

1

4

1

1

3

3

1

3

1

31

21

2 1

1

4

1357

8 6 4 2

I.B

M1~

M

U

MS3~

PULL BOXFUSE(15A)

BREAKER(15A)

POWER SUPPLY~ / N208-230V 60Hz

TO NEXTINDOORUNIT

BLU

BRN

ORN

YLW

RED

WHT

SW14SWC

BRANCH

No.

SW11

1s

DIGIT

SW12

10ths

DIGIT

1 2 3 4 5 6 7 8 910

SW1

SW5

230V208V

(RED)

ADDRESS

CN82

(RED)

ADDRESS

CN43

A.B

8

1

4

1

01234

5

6789AB

CD

EF0 1

23

456

78

90 1

23

456

78

9

TO MA-REMOTECONTROLLERDC8.7-13V

TO OUTDOOR UNITBC CONTROLLERREMOTE CONTROLLERDC24-30V

RED BL

U

GR

N/Y

LW

MF

MV

ORN

*See fig. 1

ORN

BLU

BLU

BLU

BLU

LED2

LED1

GRNYLWORNREDBRN

BLK

PM

FY

-P06N

BM

U-E

#2

PM

FY

-P08N

BM

U-E

#2

PM

FY

-P12N

BM

U-E

#2

PM

FY

-P15N

BM

U-E

#2

PM

FY

-P06N

BM

U-E

R3

PM

FY

-P08N

BM

U-E

R3

PM

FY

-P12N

BM

U-E

R3

PM

FY

-P15N

BM

U-E

R3

PM

FY

-P06N

BM

U-E

R4

PM

FY

-P08N

BM

U-E

R4

PM

FY

-P12N

BM

U-E

R4

PM

FY

-P15N

BM

U-E

R4

13

REFRIGERANT SYSTEM DIAGRAM7

Strainer (#100mesh)

Strainer pipe (#100mesh)

Strainer(#100mesh)

Strainer(#50mesh)

Heat exchanger

Thermistor TH21<Room temperature detection>

Thermistor TH23<Gas pipe temperature detection>

Thermistor TH22 <Liquid pipe temperature detection>

Linear expansion valve

1 2

Gas pipe

Liquid pipe

Flare connection

PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E

PMFY-P06NBMU-E1 PMFY-P08NBMU-E1 PMFY-P12NBMU-E1 PMFY-P15NBMU-E1

PMFY-P06NBMU-E#2 PMFY-P08NBMU-E#2 PMFY-P12NBMU-E#2 PMFY-P15NBMU-E#2

PMFY-P06NBMU-ER3 PMFY-P08NBMU-ER3 PMFY-P12NBMU-ER3 PMFY-P15NBMU-ER3

PMFY-P06NBMU-ER4 PMFY-P08NBMU-ER4 PMFY-P12NBMU-ER4 PMFY-P15NBMU-ER4

PMFY-P06/P08/P12/P15NBMU-EPMFY-P06/P08/P12/P15NBMU-E1

PMFY-P06/P08/P12/P15NBMU-E#2PMFY-P06/P08/P12/P15NBMU-ER3PMFY-P06/P08/P12/P15NBMU-ER4

Gas pipe [1/2"(12.7)

Liquid pipe [1/4"(6.35)

Unit: in.(mm)

Service Ref.

Item.

PMFY-P06/P08NBMU-EPMFY-P06/P08NBMU-E1

PMFY-P06/P08NBMU-E#2PMFY-P06/P08NBMU-ER3PMFY-P06/P08NBMU-ER4

PMFY-P12/P15NBMU-EPMFY-P12/P15NBMU-E1

PMFY-P12/P15NBMU-E#2PMFY-P12/P15NBMU-ER3PMFY-P06/P08NBMU-ER4

Capillary tube W1 O.D.[4.6 × I.D.Ø3.4 ×R200 O.D.[3.6 × I.D.Ø2.4 ×R200

Capillary tube W2 O.D.[3.6 × I.D.Ø2.4 ×R80

Unit: mm

30

DISASSEMBLY PROCEDURE10

OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS

Be careful when removing heavy parts.

PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-EPMFY-P06NBMU-E1 PMFY-P08NBMU-E1 PMFY-P12NBMU-E1 PMFY-P15NBMU-E1

PMFY-P06NBMU-E#2 PMFY-P08NBMU-E#2 PMFY-P12NBMU-E#2 PMFY-P15NBMU-E#2PMFY-P06NBMU-ER3 PMFY-P08NBMU-ER3 PMFY-P12NBMU-ER3 PMFY-P15NBMU-ER3PMFY-P06NBMU-ER4 PMFY-P08NBMU-ER4 PMFY-P12NBMU-ER4 PMFY-P15NBMU-ER4

1. Removing the grille

Opening the air intake grille

(1) Press the PUSH of the air intake grille. (See Figure 1)(2) Put your fingers on the both ends of nut of the air intake

grille and put it down after the grille clicked.

Removing the air intake grille

(1) Press the PUSH of the air intake grille, and pull down the both ends of nut with your fingers after the grille clicked.

(See Figure 1)

(2) Pull out the handle of air intake grille strongly toward you.

(See Figure 2)

(3) Draw the string of the air intake grille to prevent the air

intake grille from dropping. (See Figure 3)

Photo 1

Figure 1

Air filter

Figure 2

Figure 3

Points for securing the grille



Drainage pan

Ceiling surface

Make sure these surfaces are ß ush with each other (0-3 mm).

Checks before setting the grille in place

(1) Before installing the grille, make sure the indoor unit is

square with the ceiling opening (or parallel to the angle

between the wall and the ceiling).

(2) Check that the 4 points where the grille will be secured are

in contact with the ceiling surface.

(3) Check that the insulation for the refrigerant pipes, drain-

age pipes, etc. is in place and that wiring connections and

arrangements are complete.

Air intake grille

Air outlet

grille

Nozzle

PUSH

String for dropping prevention

Figure 4

Figure 5

31


Figure 6

Figure 7

Figure 8

Removing the grille

(1) Open the intake grille by pressing PUSH of the air intake grille and remove the air Þ lter (× 2). (See Figure 1)

(2) Remove the screw cover in the middle of the air outlet. (See

Figure 7)

(3) Open the upper and lower ß aps on the indoor unit com-

pletely. (See Figure 7)

(4) Remove the securing screws (× 7).

(A: M5 × 0.8 × 16, 6pcs)

(B: 4 × 16, 1pc)

(5) Remove the temporary holding tabs on the grille to the

hooks on the indoor unit.

Attaching the grille

(1) Open the upper and lower ß aps on the indoor unit com-

pletely.

(2) Hook the temporary holding tabs on the front panel to the

hooks on the indoor unit.

(3) Adjust the grille so that it Þ ts properly in the angle between

the ceiling and the wall, and install the securing screws A

(supplied with this grille) in their 4 places at left and right,

leaving them slightly loose.

(4) Tighten the securing bolts A and securing screws B in the

centre 3 places. (See Figure 6)

(5) Tighten the securing bolts A in the 4 places at left and right.

* Make sure there are no gaps between the indoor unit and

the grille, and between the grille and the ceiling surface.

If there are gaps, the wind may come in and it may cause

water to drip. (See Figure 8)

* Tighten the securing bolts A and securing screws B com-

pletely.

(6) Replace the air Þ lter and screw cover, and press PUSH of the intake grille until you hear it snap into place.

Checks after setting the grille

(1) Check that there are no gaps between the indoor unit and

the grille, between the grille and the ceiling surface. If there

are gaps, the wind may come in and condensation may

result.

(2) Check that the air Þ lter is in place.

Hooks

Temporary holding tabs

BA

AA

A

AA

Hooks Upper and lower ß aps* Open completely



Screw cover

Indoor unit

No gaps between the indoor unit and the grille

GrilleCeiling surface

32

3. Removing the nozzle

Note when the nozzle is removed.

· The insulation material (white) which prevents water

drop is mounted to the side of vane motor. Remove the

insulation material before removing nozzle.

(See Figure 4)

· After completing the service, re-mount the insulation

material as before as shown in right figure.

· After service, mount the double layer insulation without

fail.

The hard material side should be faced toward the nozzle.

(See Figure 4)

(1) Remove the panel.

(2) Remove the room temperature thermistor.

(3) Unhook the claws in the middle of nozzle and remove the

drain pan. (5 screws) (See Photo 2)

(4) Remove the nozzle side of the heat exchanger. (2 screws)

(5) Remove the address board cover. (See Photo 3)

(6) Remove the electrical parts cover. (See Photo 3)

(7) Disconnect the connector of vane motor.

(8) Remove the insulation material (white) on the right side of

nozzle.

(9) Remove the nozzle. (6 screws)


2. Removing the electrical parts box


(2) Remove the address board cover.

(3) Remove the electrical parts cover.

(4) Disconnect the connectors of

fan motor, vane motor,

drain pump, room temperature thermistor,

pipe temperature thermistor (Liquid. Gas),

condenser/evaporator temperature thermistor,

and drain sensor on the electrical controller board.

(5) Disconnect the lead wire and earth wire from terminal

block.

(6) Remove the electrical parts box.

4. Removing the vane motor

(1) Remove the nozzle. Refer to above-mentioned

3. Removing the nozzle.

(2) Remove the vane motor from the nozzle.

Photo 5

Photo 4

Photo 3

Photo 2

Vane motor

Nozzle

Vane motor

Nozzle

Drain pan

Hard side of insulation

Insulation material

Electrical parts

Soft side of insulation

Room temperature thermistor

NozzleClaw in middle

of nozzle

Electrical parts

cover

Figure 9

Heat exchanger

Address board

cover

Vane motor

33


5. Removing the drain pump


(2) Unhook the claw in the middle of nozzle and remove the

drain pan. (See Photo 2)



(5) Disconnect the connector of drain pump.

(6) Remove the drain hose.

(7) Remove the drain pump.(2 screws)

6. Removing the fan motor and line flow fan


(2) Unhook the claw in the middle of nozzle and remove the

drain pan. (See Photo 2)

(3) Unscrew 2 screws at the nozzle side of the heat exchanger.



(6) Disconnect the connector of vane motor, fan motor and

drain pump.

(7) Remove the nozzle side of the heat exchanger.(2 screws)

(8) Remove the nozzle.

(9) Remove the drain pump.

(10) Unscrew 2 screws in the motor support.

(11) Remove the fan motor and line flow fan. (The fan motor

and line flow fan can be removed without removing the

heat exchanger.)

Photo 6 Drain pump

Fan motor

Drain sensor

Photo 7

Fan motorLine flow fan

7. Removing the thermistor<Room temperature detection>




(4) Remove the thermistor. <intake temperature detector>

(5) Disconnect the lead wire from the cord clamp. (5 points)

(6) Disconnect the connector (CN20) on the indoor controller

board.

8. Removing the thermistor

<Liquid pipe temperature detection>

<Gas pipe temperature detection>




(4) Remove the drain pan.

(5) Remove the thermistor <Gas pipe temperature detection>/

<Liquid pipe temperature detection>.

(6) Disconnect the lead wire from the cord clamp.

(7) Disconnect the connector (CN21)/(CN29), (CN44) on the

indoor controller board.

Connector (CN21) / Liquid (NBMU(1))

(CN29) / Gas (NBMU(1))

(CN44) / Liquid and Gas (NBMU#2, NBMUR3,

NBMUR4)

12

WIRING DIAGRAM7

PLFY-P08NCMU-E.TH PLFY-P12NCMU-E.TH PLFY-P15NCMU-E.TH

PLFY-P08NCMU-E1.TH PLFY-P12NCMU-E1.TH PLFY-P15NCMU-E1.TH

DP

WHT(DRAIN)

WHT

FAN(FAN)

See Fig.1

MODELS

P08

P12

P15

<Fig.1>

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

SW2

Power supply for MA-Remote controller on Lamp is lit.

Main power supply(Indoor unit:208-230V) power on Lamp is lit.Main power supply


LED2

LED1

Mark Meaning

LED on indoor controller board for service

Function

CN

32(R

EM

OT

E S

WIT

CH

) W

HT

32

1

DC24-30VCONTROLLER

TO NEXT INDOOR UNIT

PULL BOX

FUSE(15A)

BREAKER (15A)

60Hz

HA

1234

WHT

CN41 CN51

WHT(CENTRALLY CONTROL)

5 4 3 2 1

CN52

(REMOTE INDICATION)

GRN

12345

REMOTE SWITCHCN32

X7 FAN MOTOR (Me)X6 FAN MOTOR (Hi)X5 FAN MOTOR (Lo)

SW1 SWITCH MODE SELECTION

CONNECTION No.SW14SW12SW11 ADDRESS SETTING 1ST DIGIT

ADDRESS SETTING 2ND DIGIT

MODEL SELECTIONMODE SELECTIONCAPACITY CODE

SW4SW3SW2

(32 F/15k 77 F/5.4k )

(32 F/15k 77 F/5.4k )

DP DRAIN PUMPDS DRAIN SENSORH2 DEW PREVENTION HEATER

FAN MOTOR (LL)DRAIN PUMP/DEW PREVENTION HEATERX1 AUX. RELAY

SYMBOL NAME

VARISTOR

INDOOR POWER BOARDP.B

ZNR

X4

I.B

CN41CN51CN52FUSE FUSE (6.3A/250V)

REMOTE INDICATIONCENTRALLY CONTROLHA TERMINAL-A

CONNECTORINDOOR CONTROLLER BOARD

[LEGEND]

NAMESYMBOL

PIPE TEMPERATURE DETECTION/GASTH23

TRANSMISSIONTERMINALBLOCK

POWER SUPPLYTB5TB15

TB2

(32 F/15k 77 F/5.4k )THERMISTOR ROOM TEMPERATURE DETECTION

TH22

TH21

LEV LINEAR EXPANSION VALVE

MVMF

VANE MOTORFAN MOTOR (WITH THERMAL FUSE)

CAPACITOR (FAN MOTOR)C1

PIPE TEMPERATURE DETECTION/LIQUID

MA-REMOTE CONTROLLER

LED2

LED1

31 1 3CND

(POWER)

YLW

21

YLW

1 3 BLU

(D•U•M)CNC

(D•HEATER) RED ORN

FUSE

ZNR

CNP

X1

RED

ORN

GRILLE

BLU

5

WHT

BLU

RED

ORN

YLW

REDRED

1

10

7

2

3

6

4

5

8

9

3

5

5

5

5

C1

1 5

BLK

YLW

WHTBR

N

7 9

X6 X5 X4 X7

X4 X7X5X6

MF

I.B

CN20

CN31

123

BLU

WHT

ORN

RED

YLW 6

6 5 4 3 2 1

(VANE)CN6V

GRN

RED

ORN

BLU

6 5 4 3 2 1

(LEV)CN60

WHT

WHT

YLW

BRN

BLK

2 2 11

(LIQUID)(INTAKE)CN21

RED WHT

2 1

(GAS)CN29

(RE

MO

CO

N)

WH

T

13

RE

DP.B

RED

CNDK

(POWER BORD)

123

AC208-230VCNSK(RED)

TB2L1

L2

GR

RED

BLU

GRN/YLW

~/N 208-230V POWER SUPPLY

TRANSDC13.1VCN2S(WHT)

21

21

(PO

WE

R B

OR

D)

CN

2D

WH

T

WHT

BLK

M1

1

2CONTROLLERDC8.7-13V

TO MA-REMOTE

CN

2M(M

-NE

T) 1

23

1

CN

3A

BLU

BLU

M2

TB15

S(SHIELD)

M-NET REMOTE

TO OUTDOOR UNITBC CONTROLLERTB5

X1

TH23TH22TH21DSLEV

5

3RDDIGIT

0

O0

0N0FF

SW1

1 2 3 4 5 6 7 8 9 10

SW12 SW11

1STDIGIT

0

2NDDIGIT

SW14

CONNECTIONNo.

1 2 3 4 50FF0N

SW4SW2

654321 109876543210FF

0NSW3

MV

H2

MV

MV

MV

Notes:



3. In case of using M-NET, please connect to TB5. (Transmisson wire is non-polar.)

4. Symbol[S] of TB5 is the shield wire connection.

5. Symbols used in wiring diagram above are, :terminal block, :connecter.

6. The setting of the SW2 dip switch differs in the capacity. For the detail, refer to Fig.1.

7. Use copper supply wire.

13

(RED)

(RED)

MODELS

P08

P12

P15

<Fig.1>

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

ONOFF

1 2 3 4 5 6

SW2

Power supply for MA-Remote controller on Lamp is lit.

Main power supply(Indoor unit:208-230V) power on Lamp is lit.Main power supply


LED2(RED)

LED1(RED)

Mark Meaning

LED on indoor controller board for service

Function

Notes:



3. In case of using M-NET, please connect to TB5. (Transmisson wire is non-polar.)


5. Symbols used in wiring diagram above are, : terminal block, :connecter.

6. The setting of the SW2 dip switch differs in the capacity. For the detail, refer to Fig.1.

7. Use copper supply wire.

Fig.1

PLFY-P08NCMU-ER2.TH PLFY-P12NCMU-ER2.TH PLFY-P15NCMU-ER2.TH

14

REFRIGERANT SYSTEM DIAGRAM8

Strainer (#50mesh)

Strainer (#100 mesh)

Strainer1 (#50 mesh)Strainer2 (#100 mesh)

Heat exchanger

Room temperature thermistor TH21

Gas pipe thermistor TH23

Liquid pipe thermistor TH22

Linear expansion valve

Gas pipe

Liquid pipe

Flare connection

Gas pipe

Liquid pipe

1/2

1/4

Refrigerant flow in coolingRefrigerant flow in heating

Unit : inch

PLFY-P08NCMU-E.TH PLFY-P12NCMU-E.TH PLFY-P15NCMU-E.TH

PLFY-P08NCMU-E1.TH PLFY-P12NCMU-E1.TH PLFY-P15NCMU-E1.TH

PLFY-P08NCMU-ER2.TH PLFY-P12NCMU-ER2.TH PLFY-P15NCMU-ER2.TH

29

DISASSEMBLY PROCEDURE11


1. Removing the air intake grille

(1) Slide the knob of air intake grille to the direction of the

arrow 1 to open the air intake grille.

(2) Remove the string hook from the panel to prevent the grille

from dropping.

(3) Slide the hinge of the intake grille to the direction of the

arrow 2 and remove the air intake grille.

4. Removing the electrical parts

(1) Remove the 2 screws and the control box cover.

<Electrical parts in the control box>

• Indoor controller board (I.B)

• Indoor power board (P.B)

• Fan motor capacitor (C1)

• Fuse (FUSE)

• Varistor (ZNR)

• Terminal block (TB)

Be careful when removing heavy parts.

Photo 3

Figure 1

Air intake grille

Grille

2. Removing the fan guard

(1) Open the air intake grille.

(2) Remove the 3 screws of fan guard.

Air intake grille knob

3. Removing the panel

(1) Remove the air intake grille. (Refer to 1)

Corner panel (See Figure 2)

(1) Remove the screw of the corner.

(2) Slide the corner panel to the direction of the arrow 3, and

remove the corner panel.

Panel (See Photo 2)

(1) Disconnect the connector that connects with the unit.

(2) Remove the 2 screws from the panel and loose other

2 screws, which are fixed to the oval hole, have different

diameter.

(3) Rotate the panel a little to remove the screws.(Slide the

panel so that the screw comes to a larger diameter of the

oval hole, which has two different diameters.)

Photo 1

Screws

Air intake grille

Photo 2

Figure 2

Corner

panel

ScrewCorner

panel Panel

Panel

Screws

Connector

Screws

Fan guard

Indoor controllerboard (I.B)

Fuse(FUSE)

Indoor powerboard(P.B)

Terminalblock(TB2)

Indoor controllerbox

PLFY-P08/12/15NCMU-E.TH PLFY-P08/12/15NCMU-E1.TH

PLFY-P08/12/15NCMU-ER2.TH

Terminalblock(TB5)

Varistor (ZNR)

Fan motor Capacitor(C1)

Terminalblock(TB15)

30


7. Removing the pipe temperature detection/liquid (TH22)

and pipe temperature detection/gas (TH23)

(1) Remove the panel. (Refer to 3)

(2) Remove the drain pan. (Refer to 6)

(3) Disconnect the liquid or gas from the holder.

(4) Remove the 3 screws fixed to the piping cover, and remove

the piping cover. (See Photo 9)

(5) Remove the 2 screws fixed to the control box cover, and

remove the control box cover.

Pipe temperature detection/liquid (TH22)

(6) Remove the connector (CN21) from the indoor controller

board, and disconnect the pipe temperature detection/Liquid.

Pipe temperature detection/gas (TH23)


board, and disconnect the pipe temperature detection/Gas

with its holder.

8. Removing the fan motor (MF)



(3) Remove the nut and the washer from the turbo fan, and

remove the turbo fan.



(5) Disconnect the connectors of the (FAN) from the indoor

controller board.


the piping cover. (See photo 9)

(7) Remove the 6 screws fixed to the flat plate, and remove

the flat plate.

(8) Disconnect the lead wires to the direction of the fan motor,

and remove 3 nuts of the fan motor.

Photo 5

6. Removing the drain pan


(2) Remove the room temperature detection and the 2 lead

wires held with fastener; wireless controller board relay

connector (9P red) and panel relay connector (10P white).

(3) Remove the 4 screws fixed to the drain pan, and remove

the drain pan.

(4) Remove the fan guard. (Refer to 2)

Photo 4

Control box

Thermistor

(Pipe temperature

detection/ Liquid)

(TH22)

Screw

Screw

ScrewScrew

Room

temperature

detection

(TH21)

Drain pan

Control box

Photo 6

Fanmotor(MF)

Nuts

Flat plate

Screws

Lead wires

Nut

Screws

Screws

5. Removing the room temperature detection (TH21)


(2) Pull out the room temperature detection from the drain pan.




board, and disconnect the room temperature detection.

Fan guard

Drain plug

Connectors

Thermistor

(Pipe temperature

detection/ Gas)

(TH23)

LEV

31


10. Removing the heat exchanger

(1) Remove the panel. (Refer to 3 )


(3) Remove the nut and the washer from the turbo fan, and

remove the turbo fan.



(5) Disconnect the connectors of the (FAN) from the indoor

controller board.


the piping cover. (See photo 9)

(7) Remove the pipe temperature thermistor/liquid and

condenser/evaporator temperature thermistor. (Refer to 7)

(8) Disconnect the lead wires to the direction of the fan motor.

(9) Remove 1 coil support screw, 2 inside coil screws (See

photo 10), and 4 outside coil screws (See photo 9) from the

heat exchanger, and remove the heat exchanger.

9. Removing the drain pump (DP) and drain sensor (DS)

(1) Remove the panel. (Refer to 3 )




(4) Remove the connectors of the (CNP) and the (CN31)

from the indoor controller board.

(5) Remove the 1 screw fixed to the cover, and remove the

cover.(See photo 7)

(6) Disconnect the lead wires to the direction of the drain

pump.

(7) Remove the 3 screws of the drain pump.(See photo 8)

(8) Cut the drain hose fixing band, pull out the drain hose

from the drain pump.

(9) Pull out the drain pump.

(10) Remove the drain sensor and the holder.

Photo 7

Screw

Screws

Drain sensor (DS) Drain pump (DP)

Drain hose

Fixing band

Photo 9

Photo 10

Heat exchanger

Coil screws

Coilsupport

Coilsupport Screw

Control box

Cover

Screw

Control box

Photo 8

Screws of

piping coverControl box

Piping cover Lead wires

Coil

screws

Lead wires

Documents

PMFY-NBMU TechService OC341E 6-10 · 9 9 9 9 10 10 10 10 ON OFF Mark Meaning Function Power supply for MA-Remote controller Main power supply (Indoor unit:208-230V)