Friedrich M18CF Service Manual

SPLIT TYPE
ROOM AIR CONDITIONER

WALL MOUNTED

Models

Indoor unit Outdoor unit

MW18C3F MR18C3F

type

CONTENTS

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

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

REFRIGERANT SYSTEM DIAGRAM ......3

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

INDOOR PCB CIRCUIT DIAGRAM 5
OUTDOOR PCB CIRCUIT DIAGRAM 8

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

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

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

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

.......

.....

10

SPECIFICATIONS

TYPE

INDOOR UNIT

OUTDOOR UNIT

COOLING CAPACITY

ELECTRICAL DATA

POWER SOURCE

FREQUENCY

RUNNING CURRENT

INPUT WATTS

E.E.R.

MOISTURE REMOVAL

AIR CIRCULATION -High

COMPRESSOR

TYPE

DISCRIMINATION

REFRIGERANT

R410A

COOLING ONLY INVERTER

MW18C3F

MR18C3F

18,000 Btu/h (5.28 kW)

208 - 230 V

60 Hz

7.7 A

1.73 kW

3.05 kW /kW

5.9 Pt/h (2.8 L/hr)

412 cfm (700 m3/hr)

Hermetic type, 4 pole, 3 phase,
DC inverter motor, Rotary

DA130A1F-25F

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

FAN MOTOR

POWER SOURCE

INDOOR UNIT

OUTDOOR UNIT

DIMENSIONS

INDOOR UNIT

OUTDOOR UNIT

WEIGHT

INDOOR UNIT

OUTDOOR UNIT

NOISE LEVEL

INDOOR UNIT

OUTDOOR UNIT

HIGH-SPEED

MED-SPEED

LOW-SPEED

QUIET

HxWxD

HxWxD

Gross / Net

Gross / Net

HIGH

MED

LOW

QUIET

208 - 230 V

1,480 r.p.m.

1,260 r.p.m.

1,040 r.p.m.

850 r.p.m.

860 r.p.m.

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

275 x 790 x 215 mm

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

578 x 790 x 300 mm

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

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

44 dB

38 dB

32 dB

25 dB

50 dB

REFRIGERANT (R410A)

Pipe Length

FULL CHARGE

ADDITIONAL REFRIGERANT

2006.03.06 1

49 ft. (15 m)

66 ft. (20 m)

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

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

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

DIMENSIONS

Models : MW18C3F / MR18C3F

unit : inch (mm)

10-13/16 (275)

31-1/8 (790)

8-7/16

(215)

13-11/16 (347)

1-7/8 (48)

21-1/4 (540)

31-1/8 (790)

20 (508)

13/16 (20)

12-5/8 (320)

4-15/16 (125)

2-5/8
(66)

11-13/16

(300)

22-3/4 (578)

3/8 (10)

2006.03.06 2

REFRIGERANT SYSTEM DIAGRAM

Model : MW18C3F / MR18C3F

Heat exchanger

3-Way valve

Muffler

Compressor

( INDOOR )

2-Way valve

Sub-heat

exchanger

( INDOOR )

Strainer

Sub-accumulator

Cooling

Refrigerant pipe diameter
Liquid : 1/4" (6.35 mm)
Gas : 1/2" (12.7 mm)

4-Way valve

Heat exchanger

( OUTDOOR )

Expansion valve

Strainer

2006.02.28 3

CIRCUIT DIAGRAM

Model :
MW18C3F / MR18C3F

INDOOR UNIT

CN201

1

WHITE

2

WHITE

3

WHITE

4

WHITE

5

WHITE

6

WHITE

777

INDICATOR PCB ASSY

BLUE

YELLOW

WHITE
BLACK

FM

FAN M OTO R

GRAY

3
2

GRAY

1

RED

1

1

2

2

3

3

4

4

CN3

5

5

6

6

1

1

2

2

3

3

4

4

CN1

5

5

RED

6

6

SW

POWER CIRCUIT

3
2

CN7

1

VARISTOR

CONTROLLER PCB ASSY

FUSE

3.15A

1
2
3

CN10

4
5

1
2
3
4
5

1
2

1
2

CN5 CN6 CN2

RED

1

ORANGE

2

YELLOW

3

PINK

4

BLUE

5

BLACK
BLACK

PIPE TEMPERATURE
THERMISTOR

BLACK
BLACK

ROOM TEMPERATURE
THERMISTOR

1

1

2

2

3

3

4

4

5

5

STEP MOTOR

M

OUTDOOR UNIT

REACTOR

YELLOW

YELLOW

2

1

2

1

WHITE

PIPE TEMP. THERMISTOR

DISCHARGE PIPE TEMP. THERMISTOR

OUTDOOR TEMP. THERMISTOR

WHITE

FUSE

5A-250V

FUSE 20A-250V

BLACK

BLACK

BLACK

BLACK

BLACK
BROWN
BROWN

BLACK

BLACK

RED

WHITE

RED

BLACK

GREEN

W1

THERMAL FUSE

102

TERMINAL

TO OUTDOOR UNIT

W10
W11

1

1

2

2

CN71

3

3

4

4

CONTROLLER PCB ASSY

1

1

2

2

CN70

3

3

W4

W2

W1

W3

WHITE

CN801

CN40

CN30

W2

W3

RED

BLACK

G

321

GREEN /

YELLOW

RED

W7
W8
W9

RED
WHITE
BLACK

RED

1

1
2

2

BLACK

3

3

WHITE

4

4

YELLOW

5

5

BLUE

6

6

RED

1

1

BROWN

2

2

BLUE

3

3

ORANGE

4

4

YELLOW

5

5

WHITE

6

6

BLACK

1

1

2

2

BLACK

3

3

1

1

2

2

3

3

WHITE

BLACK

FM

EV

4WV

R(R)

COMPRESSOR

CM

S(S)

C(T)

FAN MOTOR

EXPANSION VALVE

4-WAY VALVE

TERMINAL

TO INDOOR UNIT

1

3

2

(L)

POWER SUPPLY

(N)

G

5

4

2006.02.28 4

INDOOR PCB CIRCUIT DIAGRAM

Model : MW18C3F

REMOTE CONTROL UNIT

OUTDOOR UNIT

TERMINAL FUSE

103

CN10-1 RED
CN10-2

WHITE

CN10-3 BLACK

N

L

SERIAL

EARTH

CN7
B3B-XASK

1

3

CN10
B5B-XASK

1
2
3
4
5

CONTROL UNIT

EZ-005EWSE

TERMINAL BOARD

N

L

3

EARTH
TERMINAL

W3

RED

W2

BLACK

W1

WHITE

CN11

B2B-XH

1
2

CN12

B3B-XH

1

3

EX-OUT

EXTERNAL COMMUNICATION CONNECTOR

EX-I N

FAN MOTOR

F. M.

TEST

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

CN8
BS5P-SHF-1AA

1
2
3
4
5

CN1
S5 (6-5) B-XARK

6

5
4
3
2

1

CONTROLLER PCB ASSY

K04CP-0504WSE-C1

CN3

S7B-ZR-3.4

1
2
3
4
5
6
7

CN6

2P-SCN

CN5

2P-SAN

1
2

CN2

53325-0510

1

2
3
4
5

1
2

ZHR-07

CN3-1 RED
CN3-2 WHITE

CN3-4 WHITE

CN3-5 WHITE
CN3-7 WHITE
CN3-8 WHITE
CN3-9 WHITE

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

CN201
JB20-07HG

1
2
3
4

INDICATOR PCB ASSY

5

K02CB-0300HSE-D0

6
7

PIPE TEMPERATURE THERMISTOR

ROOM TEMPERATURE THERMISTOR

M

LOUVER

2006.02.28 5

Model : MW18C3F

GND

3N L

W1

W3

W4

GREEN

WHITE

RED

VA1 270V
<TNR>

C3

0.22

<LE>

1

2

L1

8

18

R3 1K

2W>

/

<1

7

14

6

10

IC10

5

5

4

4

3

3

2

2

5V

R27 390

1

1

<1/10W>

TERMINAL BOARD

W2

BLACK

F1

3.15A - 250V

R2 2.2
<RGG-5W>

4

3

R6 100K
<1/10W>

D7
DAN202K

2

HEAT EXCHANGER
THERMISTOR

ROOM TEMPERATURE
THERMISTOR

D1

2

4

3

123

C16

0.1
<F>

IC7
78M15

20V

5V

R25 10K
<1/10W>

3

Q1

1

DTC124EUA

C34

0.01
<B>

160V

R4 100K

<RS - 2W>

1

+

C5

100/

420V

A

I

O

G

A

Q2
DTC124EUA

3

1

R26 390
<1/10W>

2

CN6

CN5

D2
1NH42

5

D

7

S

S

8

TNY266P

C18

0.1
<F>

1

2

C7 0.01
<ECQE>

EN/UV

IC5

15V

+

C33

0.01
<B>

BP

1

2

S
S

C17
330/
25V

5V

5V

4
3
2
1

20V

R7 18K

<1/10W>

R5 2.0M <1/2W>

C6

0.1

<F>

MANUAL AUTO
SWITCH
(KSM0632B)

R42 49.9K

<1/10W>

(1%)

R41 10K

<1/10W>

(1%)

C11 0.01

<F>

D3
D1FL20U

+

C10
100/
35V

5V

R44 1K

<1/10W>

R43 1K

<1/10W>

ETS19AB1P8AG

A

R22
10K
<1/10W>

R21 1K
<1/10W>

6

5
4
1
2

C12
4700P
<E>

4

3

IC11
PS2501L-1
<KD / KE>

CONTROLLER PCB ASSEMBLY

K04CP-0504WSE-C1

CN7
B3B-XASK

13.5V

R10
47K
<1/10W>

VA2 270V
<TNR>

1 1223

R8
34K
<1/10W>
(1%)

R9

8.25K
<1/10W>
(1%)

C46

0.1

<F>

C45

0.1

<F>

T1

13.5V

10
7

D4

D2FL20U

C13

330 / 25V

1

2

C15

0.01
<B>

+

C

REF

A

IC8
TL431 I LP

R11
1K
<1/10W>

5V

R24 10K
<1/10W>

BZ1

12V

PKM13EPY-4000

R38 10K
<1/10W>

C27

0.1
<F>

BZ

IC3

8

CS

VCC

4

SK

D0

6

D1

TEST

5

NC

GND

IC4-6 LN2003

11 6

1
2
3
7

C29 10K
C30 1000P <R>
C31 1000P <R>

12V

D6
D1F60

C19
330/
25V

IC6
NJM7805

O

I

G

+

5V

3

C20

0.1
<F>

C22
330/
25V

REM

WIR

C23

++

10/
25V

IC1

UPD780058

61

P00

62

P01

63

P02

64

P03

65

P04

66

P05

73

XT1

72

XT2

76

P10

77

P11

78

P12

79

P13

80

P14

1

P15

2

P16

3

P17

11

P20

12

P21

13

P22

14

P23

15 43

P24

16

P25

17

P26

18

P27

44

P30

45

P31

46

P32

47

P33

48

P34

49

P35

50

P36

51

P37

19

P40

20

P41

21

P42

22

P43

23

P44

24

P45

25

P46

26

P47

VDD0

VDD1

AVRF0

AVRF1

RST

P50

P51

P52

P53

P54

P55

P56

P57

P60

P61

P62

P63

P64

P65

P66

P67

P70

P71

P72

P120

P121

P122

P123

P124

P125

P126

P127

P130

P131

IC

X1

X2

AGND

GND0

GND1

C24

0.1
<F>

5V

74

68

75

7

60

27

28

29

30

31

32

34

35

36

37

38

39

40

41

42

8

RXD

9

TXD

10

52

53

54

55

56

57

58

59

5

6

71

VPP

70

69

4

1

3

67

33

2

R16 R17

R15 R20

X1

5.00MHz
<CSTS>

JP1

R18

R39 10K

<1/10W>

C26

0.1
<F>

5V

R19

IC2
BD4842

2

VDD NC

1

VOUT

3

NC

GND

10K <1/10W> x6

AUTO RESTART

JM7
JM6

HOME AUTOMATION

JM5

ROOM TEMPERATURE
CORRECTION 1

ROOM TEMPERATURE

JM4

CORRECTION 2
CUSTOM CODE 1

JM3

CUSTOM CODE 2

JM2

12V

8

IC9

4

IC4-5 LN2003

5V

4

C25

0.1

5

<F>

C62

0.1
<F>

WIR

512

R80

12V

9

IC4

8

5V

R65 10K
<1/10W>

R66 390
<1/4W>

(1%)

IC4-4 LN2003

IC4-3 LN2003

IC4-2 LN2003

R28 10K

<1/10W>

5V

IC9-1
BA10393F

IC4-1 LN2003

IC12

5V 15V

R32R31

R33 R30

R37
R36
R35
R34

330 <1/10W> x4

5V

10K <1/10W> x4

CN8
BS5P-SHF

1

TIMER SHORT CIRCUIT

2

CLOCK

3

DO

4

DI

5

TEST

Q6
DTC124EUA

C50
1000P
<R>

PS2501L-1
<KD / KE>

5V

1

2

4

3

IC13
PS2501L-1
<KD / KE>

3

2

R50 330
<1/10W>

1

R54 10K
<1/10W>

R53 1K
<1/10W>

1

2

4

3

15V

R51 1K
<1/4W>

R55 4.7K
<1/10W>

5V

RXD
TXD
VPP

R23

R81 R82 R83

REM

IC9-2
BA10393F

6

-

7

5

+

2

-

1

3

+

(1%)

R52 820
<1/4W>

(1%)

R56 6.8K
<1/4W>

R29 10K

<1/10W>

5V

10K <1/10W> x4

R61 10K
<1/10W>

C60
1000P
<R>

IC4-7 LN2003

12V

R63 15.4K
<1/10W>

R64 28K
<1/10W>

R68 1K
<1/10W>

13

4

14

3

15

2

1

16

C53
100 / 16V

A

(1%)

(1%)

+

A

R84
R85
R86

R87

R89

330 <1/10W> x6

5V

R60 47
<1/10W>

512

12V

R62 10K
<1/10W>

12V

5432 1

D50
RD27M
<B>

JP2

12V

D61
DAN217U

CN2
53325-0510

15V

JP3JP4

R67 10K
<1/10W>

160V

5V

+

C80
100 / 16V

C81

0.01
<B>

D60
D1F60

5V

JP5

LOUVER

CN1
S5 (6-5) B-XARK

123456

A

CN3
S7B-ZR-3.4

INDICATOR PCB

765 43 21

12V

CN10
B5B-XASK

54321

DC FAN MOTOR

RED
WHITE
BLACK

JP SETTING

REMOTE
CONTROL
UNIT

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

2006.02.28 6

Model : MW18C3F

5V5V

D206 SLR-325

1

D204 SLR-325

1

D203 SLR-325

1

D201 SLR-325

1

I C201
GP1UM261R

2

2

2

2

VCC

OUT

GND

CN201

1

2

3

4

5

6

7

C201

0.1

8

9

<F>

5V

R201
47

2
1

3

<1/4W>

C202

+

47/
10V

72006.02.28

OUTDOOR PCB CIRCUIT DIAGRAM

Model : MR18C3F

N

TO
INDOOR
UNIT

AC208-230V
60Hz

SERIAL

1

L

2

3

4

5

UL1015 AWG20
W100

WHITE

UL1015 AWG20

BLACK

W103

UL1015 AWG20

BLACK

W102
UL1015 AWG14

BLACK

W101

F202
5A-250V

F201
20A-250V

UL1015 AWG14

BLACK

UL1015 AWG14

WHITE

UL1015 AWG20

RED

UL1015 AWG16

GREEN

W1
( A-1 )

W2
( B-1 )

W4
( D-1 )

W3
( C-1 )

INVERTER ASSEMBLY

EZ-005SHUE

EMI FILTER

RED

WHITE

BLACK

4-WAY VALVE

A

C. M.

COMPRESSOR

REACTOR

B

B

B

B

B

W7

W8

W9

U

V

W

UL3271 AWG16

RED

UL3271 AWG16

WHITE

UL3271 AWG16

BLACK

B

1

CN30

BLACK

2

3

B

UL3271 AWG14

WHITE

W10 W11

UL3271 AWG14

RED

BB

B2P3-VH-B-C

BLACK

BLACK

CONTROLLER PCB ASSY

K05CM-0507HUE-C1

TERMINAL

DISCHARGE TEMPERATURE THERMISTOR

PIPE TEMPERATURE THERMISTOR

OUTDOOR TEMPERATURE THERMISTOR

BLACK

BLACK

BROWN

BROWN

BLACK

BLACK

1

2

CN71
B04B-PASK-1

3

WHITE

4

1

CN70

2

B03B-PASK-1

WHITE

3

CN801

B5P6-VH-B-L

WHITE

CN40

B6B-XARK-1-A

RED

1

2

3

4

5

6

1

2

3

4

5

6

RED

BLACK

YELLOW

RED

BROWN

BLUE

ORANGE

YELLOW

WHITE

WHITE

BROWN

EXPANTION VALVE

M

F. M .

DC FAN MOTOR

2006.02.28 8

Model : MR18C3F

AC208 - 230V
60Hz

W1

L

BLACK

VA1 470V

<TNR>

VA2 470V

<TNR>

W2

N

EARTH

SERIAL

CN30
B2P3-VH-B-C

4-WAY VALVE

CN801
B5P6-VH-B-L

WHITE

FAN MOTOR

CN40
B6B-XARK-1-A

RED

EXPANSION VALVE

PIPE TEMP.
THERMISTOR

DISCHARGE TEMP.
THERMISTOR

OUTDOOR TEMP.
THERMISTOR

WHITE

GREEN

RED

CN71

CN70

RA-302M

W3

W4

1

2=3

DCV-F

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

1

2

3

18

SA1

C802

0.1

<F>

L40
5mmJP

5V

POW_GND

L800

BL02Rn1

12V

L70
BL02Rn1

4.75K

R72

6.65K
1%

C75

0.1

<F>

R73

38.3K 1%

15V

R71

1%

14

78

CR30
RE1201

C800

100/
25V

TD62064

2

7

9

16

4

5
12
13

+

POW_GND

O1
O2
O3
O4
GND1
GND2

GND3
GND4

1

C1

0.1/
275V

43

RCH4716-070PF07

HU2001 or GK30434

R801 1.0K

<1/4W>

R802
560
<1/4W>

12V

I C40

3

I1

6

I2

11

I3

14

I4

1

COM1

8

COM2

10

NC1

15

NC2

R75
10K

C71

R76
10K

<F>

C72

R77

0.1

10K

<F>

C73

0.1

<F>

2

L1

HY I C1

10

6

JM32

JM31

15V

1

3

Q801
DTA143EUA

5V

R803
10K
<1/10W>

R40
R41
R42
R43

1.5K <1/10W> x 4

C40

0.1

<F>

TE/5P

0.1

TD/4P

TA / 6P

5V

2

5V

2

3

C4

0.01/250V

C5

0.01/250V

5

1

3

K30

FTR-F3

G5NB-1A

3

1

1

D600
DAN217U

R804

1.0K

EPV3 / 44P
EPV4 / 43P
EPV2 / 42P
EPV1 / 45P

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

43

4

5

V4-AC / I C80-3

2

4

or

Q800
DTC143EUA

C801

0.01
<F>

12V

C6

3.3/275V

21

3

SO / I C80-2

JM30

12V

FANPWM / 2P

2

FANIN/17P

D80
SLR-332

<RED>

R80

2.2K

12V

12

I C80

uLN2003

16

1C

15

2C

14

3C
4C

13

5C

12

6C

11

7C

10

9

COM

R1

ZPR0RCH400

-0

12V

231

K1

G4A-1A

or

DW12D1

PFC / 58P

5V

R21
10K
<1/10W>

R22 1.0K <1/10W>

R23
27K

<1/10W>

R147

R148

C123
2200P
<B>

R149

4.7K
1%

1

1B

2

2B

V4-AC / 27P

3

3B

V4-DC / 29P

4

4B
5B

5

ACFAN / 28P

6

6B

7

7B

8

E

REACTOR

W10

W5

W6

4

PR / I C80-5

R157

4.7K

R20 1.0K

<1/10W>

C21

0.047
<B>

R150

195K <RN-1/2W>
1%x4

R151

D110
DAN217U

21

21

-12V

R144

22K 1%

R145

22K 1%

C124
2200P
<B>

R152

4.7K
1%

LED / 30P

SO / 32P

PR / 31P

LL25XB60 x 2

W11

2

3

2

3

D105

DAN217U

-12V

C137

0.1

<F>

+

C138

2.2/50V

PFCEN / 14P

15V

3

3

D111 DAN217U

R143

39K

9

10

I C104-3

BA2902F

R146
39K
1%

FANIN/17P

FANPWM / 2P
PFCSW / 35P

CT / 3P

TEST / 59P
PFC / 58P
T TXD / 60P
T AUX3 / 21P

CP-POS / 47P

V4-AC / 27P
ACFAN / 28P
V4-DC / 29P
LED / 30P
PR / 31P
SO / 32P
I PM-TRIP / 33P

E2CS / 41P
EPV2 / 42P
EPV4 / 43P
EPV3 / 44P

I PM-CR / 9P
DCV/8P
ACV/7P
TE/5P
TA / 6P
TD/4P

1%

-

+

D100

D101

C20

0.1
<F>

C130

R159

4.7K

1000P

+

-

+

-

R155
100K

1%

R156
100K

1%

ZXL / 37P

SI/48P

DTC143EUA

15V

0.1

<F>

C129

<B>

8

C500

0.1

<F>

1

4

1

4

15V

2

1

3

120K 1%

Q103

2

R160

R161

1.5K

R140

SERVICE

JM501

6

5

I C3-2

BA4560

68K

1%

10K

1%

R139

R400

R401

R402

R403

R404

R405

R406

R407

R127
R128

R153

10K 1% x 2

7

R142

+

1.2K
1%

R154
120K

5V

R132

2.2K

2

3

1

5V

R162

68K

1%

3

+

2

-

I C105-1

BA2903F

1%

R137 10K 1%

R138 10K 1%

RB751V

6
5

I C104-2

BA2902F

10K

1%

R504 10K

<1/10W>

I C500

MB90460

P63

17

P62

16

P46

2

35

P12
P50

3

59

P37

58

P36
P40

60
21

MD2

34

P11
P26

47
27

P02
P03

28
29

P04
P05

30

P06

31
32

P07

33

P10

57

C

41

P20

42

P21

43

P22

44

P23

10

P57

9

P56

8

P55

7

P54
P52

5

P53

6

4

P51
X0

22
23

X1

13

X500

8.00MHz

2

<CSTS>

0.20 <1W> 1% x 8

R130

R131

220

10

1%

1%

3

Q102

1

5V

R163
10K 1%

ZXH / 36P

1

6

-

5

+

I C5-2

BA2903F

R136 10K 1%

D109

-

7

+

D108

RB751V

5V

R500

56

VCC

11

AVCC

25

P00

26

P01

40

P17

36

P13

37

P14

38

P15

39

P16

AVR

12

P24

45

P25

46
50

P30

51

P31

52

P32

53

P33

54

P34

55

P35

14

P60

15

P61

18

MD0

20

MD1

64

P44

63

P43

62

P42

61

P41
P45

1

19

RSTX

48

P27

13

AGND

24

GND

49

GND

R126

C119

100K

1%

I C103-1

BA4560

2

-

1

3

+

R129
100K 1%

I C3-1

BA4560

2

-

1

3

+

C117

1.0
<B>

DTC143EUA

7

R135

10K

1%

R141

10K

1%

R502

1.0K

10K

+

C502

0.1
<F>

C501

10/25V

CONTROLLER PCB ASSY

K05CM-0507HUE-C1

Q100

GT30J122

15V

0.1

<F>

-12V

6
5

R166 3.9K

D107

RB751V

R134

10K
1%

I C104-1

BA2904F

2
3

C503

0.1

<F>

C120

0.1
<F>

-

7

+

R122

R123

R158 3.9K

11

D115

DAN217U

10K 1%

R133

10K

1%

-

1

+

I C104-4

BA2902F

13

-

12

+

R503

10K

PFCEN / 14P

R561

C561

0.01
<F>

C139

I C103-2
BA4560

4.7K
1%x2

33

22

R118

D119

10K

1%

14

SERVICE

JM500

T AUX / 25P

PFC-R RIP / 46P

T MODE / 18P

TRXD / 61P

/ T RES / 19P

1.0K

5V-2

2.2/
50V

D114
DAN217U

R116

15K

1%

C111

4700P

<B>

R164

22K

C125

<F>

C115

0.1

<F>

C116

0.1

<F>

-12V

E2SK / 40P

ZXH / 36P
ZXL / 37P

E2D I / 39P

EPV1 / 45P

U / 50P
X / 51P
V / 52P
Y / 53P

W / 54P

Z / 55P

MD1 / 64P
MD2 / 63P
TCK / 62P

MD0/1P

SI/48P

R560
100K

5V

C140

+

0.1
<F>

R121
100K

1%

I C102-2

BA2901F

7

+

6

-

C113
2700P
<B>

5V-2

R117
22K
1%

0.1

15V

5V

L130
ELC0607RA

1

C142

0.1

<F>

22K 1%

5
4

C135
1000P <B>

C126

+

2.2/
50V

R168

22K

COMP

T AUX / 25P

T TXD / 60P

T RXD / 61P

T MODE / 18P

T AUX3 / 21P

T CK / 62P

/ T RES / 19P

2

VDD

1

OUTNCGND

I C560

S80842

R120 4.7K 1%

11

10

R115

+

­I C102-1
BA2901F

R165

22K

D102

1NH42

R103

100

<1/2W>

1

R102

47K

5V

R125 4.7K

+

13

-

I C102-4
BA2901F
R171

4.7K

5V-2

2

C127

2.2/
50V

C131

R170
68K

3
4

2

3

R109 22

1

GAT I N

5

SI

7

DI

3

NC

TA8316

R124

4.7K

TC 74HC00AF

1
2
3

4
5
6

7

R112
10K
1%

+

0.1

<F>

+

R581
10K

E2CS / 41P
E2SK / 40P
E2D I / 39P

MD0/1P
MD1 / 64P

MD2 / 63P
TEST / 59P

C103

0.1
<HCP>

<1/4W>

I C100

I C101

1

2

3

4

5

6

7

R101

4.7K

C141

1000P

<B>

I C102-3

BA2901F

C110

0.1

<F>

C128

0.1
<F>

C132

2.2/
50V

R585

1.0K

VCC

SO

GND

R169

R582
10K

R108 47

15V

22K

R93

2
6

4

15V

<1/4W>

C105

0.1

<F>

14

14

13

13

12

12

11

11

10

10

9

9

8

8

R113 4.7K

4

C136

0.01
<F>

C112

0.1

<F>

5V

C133

2.2/
50V

+

R583

1.0K

C572

0.01 <F>

10Kx4

C100-C102
660/450V x 3

+

++

L100 BL02Rn1

15V-2

C104

+

10/
25V

5V

C106

5V-2

0.1 <F>

1%

9

+

8

-

3

D112
DAN217U

2

1

C134

0.1
<F>

R584
22K

1
2
3

6

R91R92

R90

R167
10K

DAN217U

R1

15K

1%

5V

1

C580

0.1

<F>

I C570

BR93LC46

VCC

CS
SK

DO

DI

NC

NC

GND

R570

10K

5V

F100

15A-250V

BET 3.15A-250V

PFC5000

-0702F

R104
220K

<2W>

PFC5000-0702F

R107

3.83K
1%

POW_GND

PFCAW / 35P
PFCEN / 14P
PFC-TRIP / 46P

5V

D106

21

3

C108

+

2.2/
50V

R111

10K

+

ACV/7P

3

D113
DAN217U

2

5V

1

2

3

4

5

6

7

8

9

10

5V

8

4

7

C570

5

0.1
<F>

AOUS09LAC
JM101
JM102
JM103
JM100

AOUS12LAC
JM101
JM102
JM103
JM100

F4

FH2

FH1

DC V

R105 195K
<RN-1/2W>
1%

R106 195K
<RN-1/2W>
1%

R110

6.8K

C107

<F>

DCV/8P

C109

2.2/50V

CT / 3P

CN580
B10B-PASK-1

WHITE

T AUX

T TXD

T RXD

T MODE

T AUX3

TCK

/ T RES

/ T ICS

BLm21AG610

TEST

TEST

F50

3A

DCV-F

POW_GND

0.1

COMP

UDZS8.2B

L50

x2

L51

DC V

D200

R203 330K

C205 0.1 <F>

390 <1/10W> x 6

U / 50P

V / 52P

W / 54P

X / 51P

Y / 53P

Z / 55P

I PM-TRIP / 33P

C219
1000P
<B>

I PM-CR / 9P

CP-POS / 47P

15V

D50

1SS355

D51

D52

1SS355

R51

47

C50

+

47/

35V

POW_GND

U1JU44 x 3

+

R202 330K

C204 47 / 35V

R218 4.7K

<1/10W>

R204

R205

R206

R207

R208

R209

R219

1.0K

R220

1.0K

5V

R339
10K

3

1

Q300
DTC114EUA

DCV-F

R52

470K

<1/8W>

1%

R53

510K

<1/8W>

x3

R54

R55

C51

1.0

<B>

D201

150K

<2W>

C203 0.1 <F>

5V

<ECQB>

R334

10K

1%

R56

1

4

R200 39

<1/2W>

D202

+

R201 330K

C202 47 / 35V

C201 0.1 <F>

C206-C208

5V

D301

1

2

DAN217U

3

C320

0.15

R327

5V

22K

R337

100K 1%

21

I C302-1
BA2903F

C300
100P

<CH>

C52

2200P

<E>

R57
0R0

D53

UF4005

I C50

TOP243P

MSS

S

2

S

3

C

D

+

C200 47 / 35V

D302 RB751V

C311
1000P
<B>

2

-

3

+

C339

0.01
<F>

<1/16W>

R83 27K
<1/10W>

8
7

5

C209 0.1 <F>

I PM-G

2200P <B> x 6

5V

R335

10K

1%

R81

1.0K

T60

RPZ-1F

1
2

3
4

5

C210 0.1 <F>

R328

1.0K

5V

R336

10K

1%

R338
1%

5V

7

I C302-2

BA2903F

10

9

8

7
6

15V

C212 0.1 <F>

C211 0.1 <F>

C221 0.1 <F>

C215-C217

R329 47K 1%

I C300-1

BA4560

2

-

1

3

+

R331

47K 1%

5

+

7

6

-

I C300-2

BA4560

R333

10K
1%

C330
1000P
<B>

C85

+

10/

25V

6

-

5

0.1 <F>

D60

D1FL20U

D61

D1FL20U

D62

D1FL20U

C66
100/
25V

D64

1SS355

L300
ELC0607RA

C222 1.0 <B>

I PM-G

C306

<F>

C305

<F>

15V

C86

470P

<B>

C84

+

+

D203 MTZJ T-77 24B

C220 47 / 35V

C213

0.022
<F>

R330

4.7K
1%

R332

4.7K

1%

15V

0.1

0.1

-12V

D304

DAN217U

C87
330P <B>

C64

+

330/
25V

1SS355

1

-12V

I C200

FSBS20CH60

1

VCC

2

COM

IN

3
4

IN

5

IN

6

VFO

7

CFOD

8

CSC

IN

9

VCC

10

VB

11

VS

12

IN

13
14

VCC

15

VB

16

VS
IN

17
18

VCC

19

VB

20

VS

R210 1.0K

C214
2200P
<B>

I PM-G

WVU

R305

R306

195K <RN-1/2W> 1% x 6

D303

DAN217U

21 21

33

I C60

BA7805

D63

C65

+

470/
25V

3IO

G

2

C69

+

100/
25V

NU

NV

NW

R303

R304

U

V

W

P

R301R302

R309

5.76K
1%

R310
143
1%

C67

0.1
<F>

21

22

23

24

25

26

27

UVW

W7

W8 W9

UVW

R211

R212

R213

R214

R215

R216

R217

<1W>

1%
x7

I PM-G

R307 195K
<RN-1/2W>

R308 195K
<RN-1/2W>

R311

8.66K
1%

15V

12V

5V

R61

1.0K

POW_GND

C68

+

100/
25V

DC V

C218

0.1

<HCP>

2006.02.28 9

ERROR CONTENTS

Model : MW18C3F

Error

Operation
LED

Display

Timer LED

Error

Serial signal error Normal

Indoor unit thermistor error 2 flash

Outdoor unit thermistor error 3 flash

Indoor unit control error 4 flash

2 flash

3 flash

4 flash

5 flash

2 flash

3 flash

2 flash

3 flash

4 flash

2 flash

3 flash

4 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 temperature thermistor open / short

Heat exchanger middle thermistor open / short

Discharge thermistor open / short

Heat exchanger thermistor open

Outdoor temperature thermistor open / short

Forced automatic SW welded

Main relay welded

Power interruption error

Outdoor unit control error 5 flash

Indoor fan motor error 6 flash

Refrigerant cycle error 7 flash

Optional function error

Model information error

8 flash

0.1 sec on/off 0.1 sec on/off

7 flash

8 flash

2 flash

3 flash

5 flash

6 flash

2 flash

3 flash

2 flash

3 flash

4 flash

VDD permanent stop protection

reverse VDD permanent stop protection

Current trip error

CT abnormal

Compressor location detection error

Outdoor unit fan drive system abnormal

Abnormal lock

Abnormal rotation

Discharge Temperature abnormal

Cooling high pressure abnormal rise

PFC circuit error

Model information error

2006.04.07 10

DISASSEMBLY ILLUSTRATION

Model : MW18C3F

5

51

6

5

4

1

1

2

2

Option

2006.05.12 11

7

Model : MW18C3F

236

26

52

24

48

29

20

46

28

32

30

43

39

27

40

31

36

37

61-2

61-1

21

38

33

2006.06.08 12

Model : MR18C3F

40

14

37

8

26

19

25

29

13

35

24

20

11

32

15

37

10

12

5

22

21

39

1

2

16

18

34

2006.04.07 13

3

6

7

4

36

PARTS LIST

4

INDOOR UNIT

Description

7 Intake Grille Assy 67201202

24 Crossflow Fan Assy 67200918

27 Shaft Holder-C Assy 67200922

33 Evaporator Total Assy 67201214

37 Insulation (Pipe)-E 67201217
38 Holder (Evaporator)-L Assy 67201239
39 Holder (Evaporator)-R 67201219

oM petS64

51 Remote Control Unit 67201548

61-1 Flow Control Panel-U 67201203
61-2 Flow Control Panel-Z 67201243

236 Controller PCB Assy 67201261

(K04CP-0504WSE-C1)

--- Pipe Temperature Thermistor 67201245

--- Room Temperature Thermistor 67201246

--- Indicator PCB Assy 67201247

--- Evaporator B Assy 67201255

.drO.oN traP.feR

yt'QF3C81WMoN

00210276retliF riA1

65210276)retliF( redloH4

75210276)ellirG( repmalC5
03210276lenaP tnorF6

60210276A-raeG02
33210276yssA gnisaC12

85210276)rotoM( pmalC62

95210276yssA esoH niarD82
11210276yssA paC niarD92
06210276repmalC eriW03

73210276)hctiwS( revoC23

83210276yssA epiP tnioJ63

02210276laeS retaW04
51210276laeS riA24
22210276lanimreT34
52210276rot
86210276yssA rotoM naF84

24210276lenaP tekcarB25

2006.06.08 1

OUTDOOR UNIT

5

Ref. Part No. Ord.

No MR18C3F Q'ty

1 Top Panel Assy 67201400
2 Top Panel Seal 67201401
3 Cabinet Sub Assy 67201402
4 Blow Down Grille 67201403
5 Cabinet Right Assy 67201472
6 Fan Ring 67201405
7 Grip 67201406

8 Switch Cover Assy 67201407
10 4-Way Valve 67201408
11 Expansion Valve Assy 67201409
12 Strainer 67201410
13 Condenser Assy 67201411
14 Thermistor Spring-A 67206400
15 Thermistor Spring-A 67201412
16 Propeller Fan 67201413
18 Motor Bracket 67201414
19 Separator 67201415
20 Base Assy 67201416
21 3-Way Valve Assy 67201417
22 2-Way Valve Assy 67201418
24 Cord Clamp 67201419
25 Terminal 67201332
26 Inverter PCB Assy 67201420
29 Fuse 67201421
32 Expansion Valve Coil 67201422
34 Fan Motor 67201423
35 Compressor Assy 67201424
36 Emblem Rear 67201473
37 Heat Exchanger Thermistor
39 Solenoid Coil 67201427

--- IPM 67201428

--- Outdoor Temp. Thermistor 67201429

--- Thermistor 67201430

--- Thermistor Assy 67201431

Description

2006.06.15 1

STANDARD
ACCESSORIES

Name and Shape

Wall hook bracket

Remote control
unit

Remote control
unit holder

Part No.

MW18C3F

9310001004

9315027061

Battery (penlight)

Cloth tape

Tapping screw (big)

( 4 x 25)

Tapping screw (small)
( 3 x 12)

Air cleaning filter

9305642045

0600185534

9310519004

0700076046

0700019036

9312153015

Air cleaning filter
frame

Seal A

2006.03.06 16

9311925033

9306602017

9304536000

0511G2949