SPLIT TYPEROOM AIR CONDITIONER

WALL MOUNTED type

ERROR CONTENTS . . . . . . . . . . . . . . . . . .

Models

Indoor unit Outdoor unit

MW18C3F MR18C3F

CONTENTS

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . .1

OUTLINE AND DIMENSIONS. . . . . . . . . . . . 2

STANDARD ACCESSORIES . . . . . . . . . . . . 16

REFRIGERANT SYSTEM DIAGRAM . . . . . . 3

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . 4

INDOOR PCB CIRCUIT DIAGRAM 5

OUTDOOR PCB CIRCUIT DIAGRAM 8

10

. . . . .

. . . . . . .

DISASSEMBLY ILLUSTRATION . . . . . . . . . 11

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . 14

2006.03.06 1

INDOOR UNIT H x W x D

H x W x D

275 x 790 x 215 mm

OUTDOOR UNIT578 x 790 x 300 mm

10-13/16 x 31-1/8 x 8-7/16 inch

22-3/4 x 31-1/8 x 11-13/16 inch

DIMENSIONS

INDOOR UNIT Gross / Net

Gross / Net

26 lbs. / 20 lbs. (12 kg / 9 kg)

OUTDOOR UNIT 97 lbs. / 88 lbs. (44 kg / 40 kg)

WEIGHT

SPECIFICATIONS

TYPE COOLING ONLY INVERTER

INDOOR UNIT MW18C3F

OUTDOOR UNIT MR18C3F

COOLING CAPACITY 18,000 Btu/h (5.28 kW)

POWER SOURCE 208 - 230 V

FREQUENCY 60 Hz

RUNNING CURRENT 7.7 A

INPUT WATTS 1.73 kW

E.E.R. 3.05 kW /kW

MOISTURE REMOVAL 5.9 Pt/h (2.8 L/hr)

AIR CIRCULATION -High 412 cfm (700 m3/hr)

FAN MOTOR

TYPEHermetic type, 4 pole, 3 phase,

DC inverter motor, Rotary

DISCRIMINATION DA130A1F-25F

REFRIGERANT R410A 2-9/16 lbs. (1,150 g)

POWER SOURCE 208 - 230 V

HIGH-SPEED 1,480 r.p.m.

INDOOR UNITMED-SPEED 1,260 r.p.m.

LOW-SPEED 1,040 r.p.m.

QUIET 850 r.p.m.

OUTDOOR UNIT 860 r.p.m.

ELECTRICAL DATA

COMPRESSOR

INDOOR UNIT

25 dB

OUTDOOR UNIT 50 dB

44 dB

32 dB

38 dB

NOISE LEVEL

REFRIGERANT (R410A)

Pipe Length 49 ft. (15 m) 2-9/16 lbs. (1,150 g)

FULL CHARGE 66 ft. (20 m)

HIGH

MED

LOW

QUIET

2-3/4 lbs. (1,250 g)

ADDITIONAL REFRIGERANT 3/16 oz./ft. (20 g/m)

DIMENSIONS

Models : MW18C3F / MR18C3F

unit : inch (mm)

2006.03.06 2

10-13/16(275)

31-1/8 (790)8-7/16(215)

13-11/16(347)

22-3/4(578)

1-7/8(48)

3/8(10)

12-5/8(320)

20 (508)

21-1/4 (540)

13/16 (20)

11-13/16(300)

4-15/16 (125)

2-5/8

(66)31-1/8 (790)

REFRIGERANT SYSTEM DIAGRAM

2-Way valve

Strainer

Strainer

Sub-heatexchanger( INDOOR )

3-Way valveMuffler

4-Way valve Expansion valve

Heat exchanger( INDOOR )

Heat exchanger( OUTDOOR )

Sub

-acc

umul

ator

Com

pres

sor

Cooling

Refrigerant pipe diameter

Liquid : 1/4" (6.35 mm)

Gas : 1/2" (12.7 mm)

Model : MW18C3F / MR18C3F

2006.02.28 3

CIRCUIT DIAGRAM

INDOOR UNIT

OUTDOOR UNIT

Model :

MW18C3F / MR18C3F

2006.02.28 4

REDWHITEBLACK

RED

WHITE

BLACK

RED

BLACKWHITEYELLOWBLUE

REDBROWNBLUEORANGEYELLOWWHITE

BLACK

BLACK

WHITERED

YE

LLO

W

YE

LLO

W

BLACKBLACK

BROWNBROWN

BLACK

BLACK

WHITE

WHITE

RED

BLACK

BLA

CK

BLA

CK

BLA

CK

GR

EE

N

CN71

W10W11

W7

W9W8

CN801

W4

W2

W1

W3

CN40

CN30

CN70 1

5432

6

1

5432

6

1

5432

6

1

5432

1

32

1

32

6

1

432

1

432

1

32

1

32

1

32

1

32

22 1

1

5(N)

4(L)

321

FUSE5A-250V

TO INDOOR UNIT POWER SUPPLY

GTERMINAL

FUSE 20A-250V

PIPE TEMP. THERMISTOR

DISCHARGE PIPE TEMP. THERMISTOR

OUTDOOR TEMP. THERMISTOR

REACTOR

FAN MOTOR

COMPRESSOR

EXPANSION VALVE

4-WAY VALVE4WV

E V

F M

C MS(S)

C(T)

R(R)

CONTROLLER PCB ASSY

ORANGERED

YELLOWPINKBLUE

BLACK

BLACKBLACK

BLACK

YELLOWBLUE

WHITEBLACK

RED

RED

WHITEWHITEWHITEWHITEWHITEWHITE

GRAY

GRAY

WH

ITE

BLA

CK

RE

D

GR

EE

N/

YE

LLO

WG321

1

65432

1

65432

1

5432

1

5432

1

5432

1

5432

1

5432

1

65432

1

65432

1

65432

7 7 7

12

12

1

32

1

32

CN

1

CN

7

CN

5C

N6

CN

2

CN

3

CN

10

CN201

W1

W3

W2

THERMAL FUSE102

TERMINAL

TO OUTDOOR UNIT

VARISTOR

FUSE3.15A

FAN MOTOR

STEP MOTOR

PIPE TEMPERATURETHERMISTOR

ROOM TEMPERATURETHERMISTOR

SWPOWER CIRCUIT

FM

M

CO

NT

RO

LLE

RP

CB

AS

SY

IND

ICAT

OR

PC

BA

SS

Y

CN3-1 BLACK

CN3-2 BLACK

CN2-1 BLACK

CN2-2 BLACK

CN7-1 RED

CN7-2 ORANGE

CN7-3 YELLOW

CN7-4 PINK

CN7-5 BLUE

CN4-6 RED

CN4-4 BLACK

CN4-3 WHITE

CN4-2 YELLOW

CN4-1 BLUE

CN3-1

CN3-2

CN3-3

CN3-4

CN3-5

CN10-2 WHITE

CN10-1 RED

CN10-3 BLACK

CN3-2 WHITE

CN3-1 RED

CN3-4 WHITE

CN3-5 WHITE

CN3-7 WHITE

CN3-8 WHITE

CN3-9 WHITE

1

7

6

5

4

3

2

1

7

6

5

4

3

2

1

5

4

3

2

1

5

4

3

2

6

2

3

4

5

1

1

3

1

3

1

2

CN11

B2B-XH

W1WHITE

W2BLACK

W3RED

CN12

B3B-XH

CN6

2P-SCN

1

5

4

3

2

1

2

1

2

CN5

2P-SAN

CN2

53325-0510

CN3

S7B-ZR-3.4 ZHR-07

CN7

B3B-XASK

CN10

B5B-XASK

CN8

BS5P-SHF-1AA

TEST

CN1

S5 (6-5) B-XARK

FAN MOTORLOUVER

PIPE TEMPERATURE THERMISTOR

ROOM TEMPERATURE THERMISTOR

REMOTE CONTROL UNIT

CONTROLLER PCB ASSY

K04CP-0504WSE-C1

INDICATOR PCB ASSY

K02CB-0300HSE-D0

CN201

JB20-07HG

EX-OUT

EX-I N

OUTDOOR UNIT

TERMINAL BOARD

TERMINAL FUSE

103

N

L

SERIAL

EARTH EARTH

TERMINAL

N

L

3

F. M. M

EXTERNAL COMMUNICATION CONNECTOR

CONTROL UNIT

EZ-005EWSE

INDOOR PCB CIRCUIT DIAGRAM

Model : MW18C3F

2006.02.28 5

VA1 270V

<TNR>

VA2 270V

<TNR>

F13.15A - 250V

W2BLACK

W1WHITE

W3RED

W4GREEN

GND

TERMINAL BOARD3 N L

C3

0.22

<LE>

1

1

5

7

8

4

4

3

2

1

6 10

75

4

1

2

2

3

2

4

3

L1

D1

R2 2.2

<RGG-5W>

160V

5V

5V

20V

++

+

C5

100/

420V

D2

1NH42 D3

D1FL20U

R4 100K

<RS - 2W>

R41 10K

<1/10W>

(1%)

R42 49.9K

<1/10W>

(1%)

R43 1K

<1/10W>

R44 1K

<1/10W>R39 10K

<1/10W>R28 10K

<1/10W>

R29 10K

<1/10W>

C7 0.01

<ECQE>

C11 0.01

<F>

I C5

TNY266P

R52.0M<1/2W>

R718K

<1/10W>

D4

D2FL20U

C13

330/25V

EN / UVD

S

S

S

S

BP

C10

100/

35VC6

0.1

<F> C12

4700P

<E>

C15

0.01

<B>

C45

0.1

<F>

C46

0.1

<F>

T1

ETS19AB1P8AG

CN51

1

2

2

ROOM TEMPERATURE

THERMISTOR

HEAT EXCHANGER

THERMISTOR

13.5V

C

A

REF

I C8

TL431 I LP

I C11

PS2501L-1

<KD / KE>

R9

8.25K

<1/10W>

(1%)

R11

1K

<1/10W>

R8

34K

<1/10W>

(1%)

R10

47K

<1/10W>

A

A

1

2

4

3

A

18

14

10

5

4

3

2

1

IC10

8

7

6

5

4

3

3

3

2

2

2

1

1

1

5V

D7

DAN202K

20V 15V

R3 1K

<1/2W>

IC7

78M15

C16

0.1

<F>

C18

0.1

<F>

C17

330/

25V

+

1

2

3IG

O

R27 390

<1/10W>C34

0.01

<B>

C33

0.01

<B>

5V

Q2

DTC124EUA

Q1

DTC124EUA

R25 10K

<1/10W> R26 390

<1/10W>

13.5V 12V 5V5V

5V5V

5V

CN7

B3B-XASK

1 12

2

3 3

+ + +

IGO

D6

D1F60

C19

330/

25V

IC6

NJM7805

2

1

3

4

5

VDD NC

NC

VOUT

GND

IC2

BD4842

C20

0.1

<F>

C24

0.1

<F>

C26

0.1

<F>

C25

0.1

<F>C23

10/

25V

C22

330/

25V

IC1

UPD780058

REM

WIR

61

62

63

64

65

66

73

72

76

77

78

79

80

60

27

28

29

30

31

32

34

35

1

2

3

11

12

13

14

36

37

38

39

40

41

42

15 43

16

17

18

44

45

46

47

48

8

9

10

52

53

54

55

56

49

50

51

19

20

21

22

57

58

59

5

6

71

70

23

24

25

26

69

4

67

33

74

68

75

7

P00

P01

P02

P03

P04

VDD0

VDD1

AVRF0

AVRF1

RST

P05

XT1

XT2

P10

P11

P12

P13

P14

P15

P16

P17

P50

P51

P52

P53

P54

P55

P56

P57

P60

P61

P62

P20

P21

P22

P23

P24

P25

P26

P27

P63

P64

P65

P66

P67

P70

P71

P72

P30

P31

P32

P33

P34

P35

P36

P37

P40

P41

P120

P121

P122

P123

P124

P125

P126

P127

P130

P131

P42

P43

P44

P45

P46

P47

IC

X1

X2

AGND

GND0

GND1

RXD

TXD

VPP

13

2

X1

5.00MHz

<CSTS>

5V

5V

R21 1K

<1/10W>

R22

10K

<1/10W>

R24 10K

<1/10W>

C27

0.1

<F>

IC3

8

4

6

5

1

2

3

7

VCC

D0

TEST

GND

CS

SK

D1

NC

12V

BZ

R38 10K<1/10W>

BZ1PKM13EPY-4000

IC4-6 LN2003

11 6

RXD

TXD

VPP

R23

5V

R80

R81 R82 R83 10K <1/10W> x4

330 <1/10W> x6

R84

R85

R86

R87

R89

5VR15 R20

R16 R17

R18

R19

10K <1/10W> x6

5V

JM7

JM6

JM5

JM4

JM3

JM2

R37

R36

R35

R34

330 <1/10W> x4

5V

R33 R30

R32R31

10K <1/10W> x41

2

3

4

5

CN8BS5P-SHF

TIMER SHORT CIRCUIT

CLOCK

DO

DI

TEST

IC13

PS2501L-1

<KD / KE>

IC12

PS2501L-1

<KD / KE>

1

2

3

R50 330<1/10W>

R53 1K<1/10W>

R54 10K<1/10W>

R56 6.8K<1/4W>

R55 4.7K<1/10W>

Q6DTC124EUA

5V 15V

15V5V

C501000P<R>

C620.1<F>

1

2

4

3

4

3

1

2

R51 1K<1/4W>(1%)

R66 390<1/4W>(1%)

R65 10K<1/10W>

R64 28K<1/10W>(1%)

R63 15.4K<1/10W>(1%)

R68 1K<1/10W>

R62 10K<1/10W>

R67 10K<1/10W>

R52 820<1/4W>(1%) A A

+

C53

100 / 16V

DC FAN MOTOR

CN1

S5 (6-5) B-XARK

CN2

53325-0510

CN10

B5B-XASK

15V

160V

D50

RD27M

<B>A

12

34

56

IC4-4 LN2003

IC4-5 LN2003

IC4-3 LN2003

IC4-2 LN2003

IC4-1 LN2003

4

3

2

1

13

14

15

16

12V

54

32

1

5 12

5VJP5

D61DAN217U

D60D1F6012V

12V

12V

12V

12V

IC9

8

4

12V

IC4

9

8

WIR

5V

IC9-2BA10393F

IC9-1BA10393F

76

5-

+

12

3-

+

54

32

1 RED

WHITE

BLACK

REMC601000P<R>

C810.01<B>

C80100 / 16V

R61 10K<1/10W>

R60 47<1/10W>

5V

+

76

54

32

1

CN3

S7B-ZR-3.4

MANUALAUTOSWITCH(KSM0632B)

LOUVER

ROOM TEMPERATURECORRECTION 1

ROOM TEMPERATURECORRECTION 2

AUTO RESTART

HOME AUTOMATION

CUSTOM CODE 2

CUSTOM CODE 1

CONTROLLER PCB ASSEMBLY

K04CP-0504WSE-C1

Model : MW18C3F

C35 0.1 <F>C36 0.1 <F>C37 0.01 <B>C38 0.1 <F>

CN6

C29 10K

C30 1000P <R>

C31 1000P <R>

IC4-7 LN2003

5 12

JP SETTING

REMOTECONTROLUNIT

INDICATOR PCB

JP2 JP3JP4

JP1

R6 100K<1/10W>

2006.02.28 6

72006.02.28

Model : MW18C3F

+

5V

C201

0.1

<F>

R201

47

<1/4W>

C202

47/

10V

I C201

GP1UM261R

5V5V

CN201

1

1

1

1

2

2

2

2

2

1

3

VCC

OUT

GND

D206 SLR-325

D204 SLR-325

D203 SLR-325

D201 SLR-325

1

6

8

7

5

4

3

2

9

Model : MR18C3F

2006.02.28 8

INVERTER ASSEMBLYEZ-005SHUE

OUTDOOR PCB CIRCUIT DIAGRAM

TOINDOORUNIT

F20120A-250V

F2025A-250V

UL1015 AWG14

W101 BLACK

UL1015 AWG20

W102 BLACK

UL1015 AWG20

W103 BLACK

UL1015 AWG20

W100 WHITE

TERMINAL

UL1015 AWG14BLACK

UL1015 AWG14WHITE

UL1015 AWG20RED

UL1015 AWG16GREEN

W1( A-1 )

W2( B-1 )

W4( D-1 )

W3( C-1 )

B

B

B

B

BB

W10 W11

W7

W9

W8

B

B

B

UL3271 AWG16BLACK

UL3271 AWG14WHITE

UL3271 AWG14RED

UL3271 AWG16RED

UL3271 AWG16WHITE

EMI FILTER

U

V

W

BLACK

BLACK

RED

BLACK

WHITE

YELLOW

YELLOW

BROWN

WHITE

ORANGE

BLUE

BROWN

RED

1

6

5

4

3

2

1

6

5

4

3

2

1

3

2

BLACK

WHITE

RED

CN30B2P3-VH-B-C

BLACK

CN801B5P6-VH-B-L

WHITE

CN40B6B-XARK-1-A

RED

CN71B04B-PASK-1WHITE

CN70B03B-PASK-1WHITE

1

4

3

2

1

3

2

BLACK

BLACK

BLACK

BLACK

BROWN

BROWN

DISCHARGE TEMPERATURE THERMISTOR

PIPE TEMPERATURE THERMISTOR

OUTDOOR TEMPERATURE THERMISTOR

N

L

SERIAL

1

2

3

4

5

AC208-230V

60Hz

REACTOR

EXPANTION VALVE

DC FAN MOTOR

4-WAY VALVE

COMPRESSOR

A

C. M.

F. M.

M

CONTROLLER PCB ASSY

K05CM-0507HUE-C1

PFC5000-0702F

PFC5000

-0702F

C1

0.1/

275V

C6

3.3/275VC4

0.01/250V

C5

0.01/250VL1

RCH4716-070PF07

LL25XB60 x 2

D100

D101

AOUS09LAC

AOUS12LAC

15V

L300

ELC0607RA

C209

0.1<F>

+

C210

0.1<F>

C211

0.1<F>

C212

0.1<F>

C221

0.1<F>

C222

1.0<B>

D203

MTZJT-7724B

C220

47/35V

W7 W8 W9

I C200

FSBS20CH60

C214

2200P

<B>

R210 1.0K

DC V

U V W

W V U

R307 195K

<RN-1/2W>

R308 195K

<RN-1/2W>

15V5V5V5V5V

-12V

5V

C213

0.022

<F>

C219

1000P

<B>

5V

5V

R339

10KR334

10K

1%

R220

1.0K

C320

0.15

<ECQB>

R336

10K

1%

R335

10K

1%

R333

10K

1%

D304

DAN217U

D303

DAN217U

C86

470P

<B>

C84

0.1 <F>

C206-C208 C215-C217

2200P <B> x 6

195K<RN-1/2W>1%x6

R306

R305

R304

R303

R301

R302

U / 50P

V / 52P

W / 54P

X / 51P

Y / 53P

Z / 55P

I PM-TRIP / 33P

I PM-G

I PM-G

I PM-G

I PM-G

POW_GND

P63 VCC17

16

2

35

3

59

58

60

21

34

47

27

28

29

30

31

32

33

57

41

42

43

44

10

9

8

7

5

6 48

19

1

61

62

63

64

20

18

15

14

55

54

53

52

51

50

46

45

12

39

38

37

36

40

26

25

11

56

P62

P46

P12

P50

P37

P36

P40

MD2

P11

P26

P02

P03

P04

P05

P06

P07

P10

C

P20

P21

P22

P23

P57

P56

P55

P54

P52

P53

AVCC

P00

P01

P17

P13

P14

P15

P16

AVR

P24

P25

P30

P31

P32

P33

P34

P35

P60

P61

MD0

MD1

P44

P43

P42

P41

P45

RSTX

P27

15V DC V - F

T60

RPZ-1F1

5

4

3

2

10

9

8

7

6

+C64

330/

25V

D60

D1FL20U

D61

D1FL20U

D62

D1FL20U

D63

1SS355 +C65

470/

25V

12V

5V

+C68

100/

25V

C67

0.1

<F>

R61

1.0K

-12V

+C69

100/

25V

D64

1SS355

1

2

3I O

G

I C60

BA7805

+C66

100/

25VI C50

TOP243P1

2

3

4 5

7

8M

S

S

S

S

C D

+

R51

47

C50

47/

35V

C300

100P

<CH>

R83 27K

<1/10W>

R81

1.0K

<1/16W>

+

I C302-2

BA2903F

C85

10/

25V

15V

-+

2

31

12

1314

+

-

15V

-12V

C115

0.1

<F>

C116

0.1

<F>

5V

R135

10K

1%

R504 10K

<1/10W>

I C500

MB90460

JM501

R500

10K

R502

1.0K JM500

R503

10K

C51

1.0

<B>

D53

UF4005

R57

0R0

C52

2200P

<E>

R56

150K

<2W>

R52

470K

<1/8W>

1%

R53

510K

<1/8W>

x 3

R54

R55

L51

D52

1SS355

D50

1SS355

D51

UDZS8.2B

-6

57

3 3

2 1 2 1

7 +5

6

3

21

+

-

-

C306

0.1

<F>

C305

0.1

<F>C330

1000P

<B>

I C300-2

BA4560

R332

4.7K

1%

R329 47K 1% R330

4.7K

1%I C300-1

BA4560

R331

47K 1%

D302 RB751V

R328

1.0KC311

1000P

<B>

R327

22K

D301

DAN217U12

3

3

1

2 12

3+-

R338

1%

I C302-1

BA2903F

Q300

DTC114EUA

C339

0.01

<F>

R337

100K 1%

C87

330P <B>

15V

R311

8.66K

1%

R309

5.76K

1%

R310

143

1%

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1 21

22

23

24

25

26

27

VCC

COM

I N

I N

I N

VFO

CFOD

CSC

I N

VCC

VB

VS

I N

VCC

VB

VS

I N

VCC

VB

VS

NU

NV

NW

U

V

W

P

C218

0.1

<HCP>

R211

R212

R213

R214

R215

R216

R217

<1W>

1%

x 7

6

U V W

-12V

D105

DAN217U

2

R155

100K

1%

W10 W11

W5 W6R1

ZPR0RCH400

R152

4.7K

1%

R149

4.7K

1%

3

2

3

2

4

1

2

3

1

4

2

1

3

2

3

1

3

2 1

+5V

15V

R803

10K

<1/10W>

R802

560

<1/4W>

15V

5V

R804

1.0K

C801

0.01

<F>

D600

DAN217U

Q801

DTA143EUA

Q800

DTC143EUAR801 1.0K

<1/4W>

C800

100/

25V

L800

BL02Rn1

C802

0.1

<F>

CR30

RE1201

JM32

JM31

C137

0.1

<F>

K1

G4A-1A

or

DW12D1

+

+

-

-

5V

18 14 10 5 4 3 2 11234578

SA1

RA-302M

VA1 470V

<TNR>

VA2 470V

<TNR>

W1

W2

W3

4 3

1 2

-0

W4

HY I C1

HU2001 or GK30434

R75

10K

R76

10K

R77

10K

C73

0.1

<F>

C71

0.1

<F>

C72

0.1

<F>

12V 12V

I C40

TD62064

12V

I C80

uLN2003

D80

SLR-332<RED>

R80

2.2K

12V

2

7

9

16

4

5

12

13

3

6

11

14

1

8

10

15

O1

O4

O3

O2

GND1

I 1

I 4

I 3

I 2

COM1

COM2

NC1

NC2GND4

GND3

GND21.5K <1/10W> x 4

R40

R43R42R41

16

15

14

13

12

11

10

9

1

5

8

7

6

4

3

2

1C

7C

6C

5C

4C

3C

2C

COM

1B

7B

6B

5B

4B

3B

2B

E

L40

5mmJP1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

1

2

3

1

2=3

L

N

R156

100K

1%

+

C20

0.1

<F>

15V

5V

15V

5VR162

68K

1%

I C5-2

BA2903F

C130

0.1

<F>

C129

1000P

<B>

R159

4.7K

R161

1.5K

1%

I C105-1

BA2903F

R160

68K

1%

R163

10K 1%

+

+

6

57

12

3

-

-

R137 10K 1% R136 10K 1%

R138 10K 1%

D109

RB751VR140

10K

1%-+

6

57

R134

10K

1%

R133

10K

1%

I C104-1

BA2904F

I C104-4

BA2902FR141

10K

1%

I C104-2

BA2902F

D108

RB751V

R139

10K

1%

R146

39K

1%

I C104-3

BA2902F

- 8+

9

10

3

2 1

-12V R143

39K

1%R144

22K 1%

R145

22K 1%

C124

2200P

<B>

C123

2200P

<B>

3

2 1

3

1

4

2

12V

JM30

K30

FTR-F3

or

G5NB-1A

R22 1.0K <1/10W>

C21

0.047

<B>

R23

27K

<1/10W>

R20 1.0K

<1/10W>

R21

10K

<1/10W>

R157

4.7KC138

2.2/50V

195K <RN-1/2W>

1% x 4

R147

R148

R150

R151

D111 DAN217U

D110

DAN217U

I C3-1

BA4560

R126

100K

1%

C119

0.1

<F>

15V

3

1

R154

120K

5V

R131

10

1%

R142

1.2K

1%

C117

1.0

<B>R132

2.2K

-

-+

+

2

31

12

3

+5

67

4

1

I C3-2

BA4560

R153

120K 1% 10K 1% x 2

R127R128

I C103-1

BA4560

R129

100K 1%

2

1

3

2

1

3

0.20 <1W> 1% x 8

Q103

DTC143EUA

Q102

DTC143EUA

DC VR200 39

<1/2W>

D200

U1JU44 x 3

D201 D202

DC V

R105 195K

<RN-1/2W>

1%

F100

15A-250V

F50

3A

+FH1

FH2

F4

BET 3.15A-250V

R104

220K

<2W>

R203330K

C2050.1<F>

C20447/35V

R202330K

C2030.1<F>

C20247/35V

+ +

R201330K

C2010.1<F>

C20047/35V

5V

L130

ELC0607RA

5V

C140

0.1

<F>

5V-2

15V

+C139

2.2/

50V

I C103-2

BA4560

-12V

C120

0.1

<F>

R171

4.7K3 3

1 12 2

1310

11+

-I C102-4

BA2901F

I C102-2

BA2901F

-+

75

6

R121

100K

1%

C113

2700P

<B> C142

0.1

<F>

I C100

TA8316

C105

0.1

<F>R124

4.7K

R1254.7K

R1204.7K1%

R1663.9K

R1583.9K

4.7K

1% x 2

R122

R123

5V

R106 195K

<RN-1/2W>

1%

15V

+C104

10/

25V

15V-2

D102

1NH42

R103

100

<1/2W>

R102

47K

Q100

GT30J1223

21

C103

0.1

<HCP>

R167

10K

C106

0.1 <F>5V-2 D106

DAN217UR219

1.0K

R206

R209

R208

R207

R205

R204

390 <1/10W> x 6

R218 4.7K

<1/10W>

R107

3.83K

1%

3

2 1

+48

9

-

+

R113 4.7K

1% R110

6.8K

C107

0.1

<F>

C108

2.2/

50V

R1

15K

1%

C136

0.01

<F>

I C102-3

BA2901F

15V

C110

0.1

<F>

C112

0.1

<F>

+C109

2.2/50V

R111

10K

1

5

7

3

2

6

4

GAT I N

S I

D I

NCGND

SO

VCC

+7

61

-

D115

DAN217UD114

DAN217U5V-2

L100 BL02Rn1

R10847

<1/4W>

R10922

<1/4W>

4

22

23

1 3

2

49

24

13P51

X0

X1

AGND

GND

GND

X500

8.00MHz

<CSTS>

C500

0.1

<F>

5V

5V

C570

0.1

<F>

5VI C570

BR93LC46

1

2

3

6

8

4

7

5

CS

SK

D I

NC

VCC

DO

NC

GND

5V

R570

10K

5VI C101

TC 74HC00AF1

2

3

4

5

6

7

14

13

12

11

10

9

8

1

2

3

4

5

6

7 8

9

10

11

12

13

14

R168

22KR169

22K

R165

22K

5VC128

0.1

<F>

C127

2.2/

50V

++

R164

22K

C126

2.2/

50V

C125

0.1

<F>D112

DAN217U

3

1 2

3

1 2

D113

DAN217U

5V

+ C134

0.1

<F>

C132

2.2/

50V

+

C133

2.2/

50V

C131

0.1

<F>

R170

68K

C580

0.1

<F>

R584

22K

R583

1.0K

R582

10KR581

10K

+C502

0.1

<F>

C503

0.1

<F>

C501

10/25V

I C560

S80842

2

1

3

4

VDD

OUT

NC

GND

JM101JM102JM103JM100

TEST

10K x 4

R90R91R92R93

L50

BLm21AG610

x 2

R585

1.0K

-I C102-1

BA2901F

4

52+

D107

RB751V

R118

10K 1%

D119

10K

1%

R116

15K

1%

R117

22K

1% C135

1000P <B>

C111

4700P

<B>

R115

22K 1%

R112

10K

1%

C141

1000P

<B>

R101

4.7K5V-2

REACTOR

EARTH

AC208 - 230V

60Hz

SERIAL

V4-AC / I C80-3

SO / I C80-2

PR / I C80-5

TD / 4PTA / 6PTE / 5PACV / 7PDCV / 8PI PM-CR / 9P

ACFAN / 28PPR / 31P

V4-DC / 29PV4-AC / 27PSO / 32P

LED / 30P EPV3 / 44PEPV4 / 43PEPV2 / 42P

E2CS / 41P

I PM-TRIP / 33PSO / 32PPR / 31PLED / 30PV4-DC / 29PACFAN / 28PV4-AC / 27PCP-POS / 47P

T AUX3 / 21PT TXD / 60PPFC / 58PTEST / 59P

CT / 3PPFCSW / 35PFANPWM / 2P

FAN IN / 17P

FAN IN / 17P

EPV3 / 44PEPV4 / 43PEPV2 / 42PEPV1 / 45P

ACFAN / I C80-6PR / I C80-5V4-DC / I C80-4V4-AC / I C80-3SO / I C80-2

TE / 5P

TD / 4P

TA / 6P

FANPWM / 2P

PIPE TEMP.

THERMISTOR

DISCHARGE TEMP.

THERMISTOR

OUTDOOR TEMP.

THERMISTOR

CN70

EXPANSION VALVE

CN40

B6B-XARK-1-ARED

CN801

B5P6-VH-B-LWHITE

FAN MOTOR

DCV-F POW_GND

POW_GND

CN30

B2P3-VH-B-C

4-WAY VALVE

GREEN

WHITE

BLACK

SERVICE

RED

5V

L70

BL02Rn1

C40

0.1

<F>

R71

4.75K

1%

R72

6.65K

1%

R73

38.3K 1%

C75

0.1

<F>

CN71

12V

5V

R130

220

1%

C572

0.01 <F>

R560

100K

C561

0.01

<F>

R561

1.0K

1

2

3

4

5

6

7

8

9

10

PFC-TRIP / 46P

PFCEN / 14P

PFCAW / 35P

I PM-CR / 9P

DCV / 8P

CT / 3P

ACV / 7P

CP-POS / 47P

/ T ICS

/ T RES

T CK

T AUX3

T MODE

T RXD

T TXD

T AUX

PFCEN / 14P

PFC / 58P

ZXL / 37P

S I / 48P

ZXH / 36P

TEST / 59PMD2 / 63P

MD1 / 64PMD0 / 1P

E2CS / 41P

E2SK / 40PE2D I / 39P

T MODE / 18P

MD1 / 64PMD2 / 63PTCK / 62PTRXD / 61PMD0 / 1P

/ T RES / 19PS I / 48P

PFCEN / 14P

Z / 55PW / 54PY / 53PV / 52PX / 51PU / 50P

PFC-R RIP / 46PEPV1 / 45P

E2D I / 39P

ZXL / 37PZXH / 36PE2SK / 40P

T AUX / 25P

/ T RES / 19P

T CK / 62P

T AUX3 / 21P

T MODE / 18P

T RXD / 61P

T TXD / 60P

T AUX / 25P

DCV-F

POW_GND

POW_GND

POW_GND

CN580

B10B-PASK-1WHITE

COMP

COMP

SERVICE

C100-C102

660/450V x 3

+ +

JM101JM102JM103JM100

TEST

+

R407

R406

R405

R403

R404

R400

R401

R402

CONTROLLER PCB ASSY

K05CM-0507HUE-C1

Model : MR18C3F

2006.02.28 9

ERROR CONTENTS

Model : MW18C3F

2006.04.07 10

Error Operation

LEDTimer LED

Serial signal error Normal

2 flash

3 flash

4 flash

5 flash

Serial signal (reverse) error, at operation start up

Serial signal (reverse) error, during oeration

Serial signal (forward) error, at operation start up

Serial signal (forward) error, during operation

Indoor unit thermistor error 2 flash

2 flash

Outdoor unit thermistor error 3 flash

3 flash

2 flash

3 flash

4 flash

Indoor unit control error 4 flash

2 flash

3 flash

7 flash

4 flash

8 flash

Display

Error

Outdoor unit control error 5 flash

2 flash

3 flash

5 flash

Indoor fan motor error 6 flash

2 flash

3 flash

Abnormal lock

Abnormal rotation

CT abnormal

Outdoor unit fan drive system abnormal

2 flash

Refrigerant cycle error 7 flash

3 flash

Optional function error

Model information error

8 flash

0.1 sec on/off 0.1 sec on/off

4 flash

6 flash

Current trip error

Main relay welded

Outdoor temperature thermistor open / short

Indoor temperature thermistor open / short

Heat exchanger thermistor open

Heat exchanger middle thermistor open / short

Discharge thermistor open / short

VDD permanent stop protection

reverse VDD permanent stop protection

Forced automatic SW welded

Power interruption error

Compressor location detection error

Model information error

Discharge Temperature abnormal

Cooling high pressure abnormal rise

PFC circuit error

DISASSEMBLY ILLUSTRATION

51

2

2

16

7

1

4

Option

5

5

Model : MW18C3F

2006.05.12 11

32

24

29

20

43

46

48

236

37

28

26

3052

36

40

39

3338

27

61-1

61-2

31

Model : MW18C3F

2006.06.08 12

21

1

2

7

18

5

19

29

10

2024

26

32

12

13

6

39

3

35

22

21

25

14

36

37

3711

4

34

8

16

15

Model : MR18C3F

2006.04.07 13

40

PARTS LIST

INDOOR UNIT.drO.oN traP.feR

yt'QF3C81WMoN00210276retliF riA165210276)retliF( redloH475210276)ellirG( repmalC503210276lenaP tnorF6

7 Intake Grille Assy 6720120260210276A-raeG0233210276yssA gnisaC12

24 Crossflow Fan Assy 6720091885210276)rotoM( pmalC62

27 Shaft Holder-C Assy 6720092295210276yssA esoH niarD8211210276yssA paC niarD9206210276repmalC eriW0373210276)hctiwS( revoC23

33 Evaporator Total Assy 6720121483210276yssA epiP tnioJ63

37 Insulation (Pipe)-E 6720121738 Holder (Evaporator)-L Assy 6720123939 Holder (Evaporator)-R 67201219

02210276laeS retaW0451210276laeS riA2422210276lanimreT3452210276rotoM petS6486210276yssA rotoM naF84

51 Remote Control Unit 6720154824210276lenaP tekcarB25

61-1 Flow Control Panel-U 6720120361-2 Flow Control Panel-Z 67201243236 Controller PCB Assy 67201261

(K04CP-0504WSE-C1)--- Pipe Temperature Thermistor 67201245--- Room Temperature Thermistor 67201246--- Indicator PCB Assy 67201247--- Evaporator B Assy 67201255

Description

2006.06.08 14

OUTDOOR UNITRef. Part No. Ord.No MR18C3F Q'ty1 Top Panel Assy 672014002 Top Panel Seal 672014013 Cabinet Sub Assy 672014024 Blow Down Grille 672014035 Cabinet Right Assy 672014726 Fan Ring 672014057 Grip 672014068 Switch Cover Assy 6720140710 4-Way Valve 6720140811 Expansion Valve Assy 6720140912 Strainer 6720141013 Condenser Assy 6720141114 Thermistor Spring-A 6720640015 Thermistor Spring-A 6720141216 Propeller Fan 6720141318 Motor Bracket 6720141419 Separator 6720141520 Base Assy 6720141621 3-Way Valve Assy 6720141722 2-Way Valve Assy 6720141824 Cord Clamp 6720141925 Terminal 6720133226 Inverter PCB Assy 6720142029 Fuse 6720142132 Expansion Valve Coil 6720142234 Fan Motor 6720142335 Compressor Assy 6720142436 Emblem Rear 6720147337 Heat Exchanger Thermistor39 Solenoid Coil 67201427--- IPM 67201428--- Outdoor Temp. Thermistor 67201429--- Thermistor 67201430--- Thermistor Assy 67201431

Description

2006.06.15 15

9305642045

Remote controlunit holder

Name and ShapePart No.

MW18C3F

9310001004

9315027061

0600185534

0700076046

9310519004

9312153015

9311925033

Remote controlunit

Battery (penlight)

Cloth tape

Tapping screw (big)

Wall hook bracket

STANDARD

ACCESSORIES

9306602017

9304536000

Tapping screw (small)( 3 x 12)

( 4 x 25)

0700019036

Air cleaning filter

Air cleaning filter

Seal A

frame

2006.03.06 16

0511G2949