Friedrich MR18Y3F, MW18Y3F User Manual

SPLIT TYPE ROOM AIR CONDITIONER

WALL MOUNTED

Models

Indoor unit Outdoor unit

MW18Y3F MR18Y3F

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 . . . . . . . . 12

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . 15

STANDARD ACCESSORIES . . . . . . . . . . . 17

. . . . . .

. . . .

10

SPECIFICATIONS

TYPE

INDOOR UNIT

OUTDOOR UNIT

COOLING CAPACITY

HEATING CAPACITY

ELECTRICAL DATA

POWER SOURCE

FREQUENCY

RUNNING CURRENT

INPUT WATTS

E.E.R.

COP

MOISTURE REMOVAL

AIR CIRCULATION -High

COMPRESSOR

TYPE

COOLING

HEATING

COOLING

HEATING

COOLING

HEATING

COOL & HEAT INVERTER

MW18Y3F

MR18Y3F

5.28 kW

6.30 kW

208 - 230 V

60 Hz

7.7 A

8.6 A

1.73 kW

1.93 kW

3.05 kW/kW

3.28 kW/kW

2.8 L/hr

Cool 700 m3/hr Heat 700 m3/hr

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

DISCRIMINATION

REFRIGERANT

FAN MOTOR

POWER SOURCE

INDOOR UNIT

OUTDOOR UNIT

DIMENSIONS

INDOOR UNIT

OUTDOOR UNIT

WEIGHT

INDOOR UNIT

OUTDOOR UNIT

NOISE LEVEL

INDOOR UNIT

OUTDOOR UNIT

R410A

HIGH-SPEED

MED-SPEED

LOW-SPEED

QUIET

H x W x D

GROSS / NET

DA / 30A / F-25F

1,150 g

208 - 230 V

Cool 1,480 r.p.m. Heat 1,480 r.p.m.

Cool 1,260 r.p.m. Heat 1,300 r.p.m.

Cool 1,040 r.p.m. Heat 1,110 r.p.m.

Cool 850 r.p.m. Heat 950 r.p.m.

Cool 860 r.p.m. Heat 820 r.p.m.

275 x 790 x 215 mm

578 x 790 x 300 mm

12 / 9 kg

44 / 40 kg

C 44 dB H 42 dB

C 50 dB H 50 dB

REFRIGERANT (R410A)

Pipe Length

FULL CHARGE AMOUNT

ADDITIONAL REFRIGERANT

15 m

20 m

2006.02.20 1

1,150 g

1,250 g

20 g / m

DIMENSIONS

Model : MW18Y3F / MR18Y3F

(unit : mm)

790

275

508

48

20

215

347

540

790

578

10

125

66

320

300

2006.02.20 2

REFRIGERANT SYSTEM DIAGRAM

Model : MW18Y3F / MR18Y3F

Muffler

Compressor

3-Way

valve

4-Way valve

Heat exchanger

( INDOOR )

Sub-heat

exchanger

( INDOOR )

2-Way

valve

Strainer

Expansion valve

Sub-accumulator

Cooling Heating

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

Heat exchanger ( OUTDOOR )

Strainer

2006.02.20 3

CIRCUIT DIAGRAM

Model : MW18Y3F / MR18Y3F

INDOOR UNIT

OUTDOOR UNIT

CN201

1 2 3 4 5 6 7 7 7

INDICATOR PCB ASSY

FM

FAN MOTOR

GRAY

THERMAL FUSE

TERMINAL

RED

1

WHITE

2

WHITE

3

WHITE

4

WHITE

5

WHITE

6

WHITE

BLUE

1

YELLOW

2

WHITE

3

BLACK

4 5

RED

6

POWER CIRCUIT

3

2

CN7

1

W1

102

1 2 3 4 5 6

WHITE

CN3

CN1

SW

W2

BLACK

CN10

CONTROLLER PCB ASSY

CN5 CN6 CN2

VARISTOR

FUSE

3.15A

W3

RED

321

1 2 3 4 5

1 2

G

RED

1

ORANGE

2

YELLOW

3

PINK

4

BLUE

5

BLACK BLACK

PIPE TEMPERATURE THERMISTOR

BLACK BLACK

ROOM TEMPERATURE THERMISTOR

GREEN /

YELLOW

1

2

2 3

M

4 5

STEP MOTOR

3 4 5

REACTOR

YELLOW

2

1

2

1

WHITE

PIPE TEMP. THERMISTOR

BLACK

BLACK BROWN BROWN

DISCHARGE PIPE TEMP. THERMISTOR

OUTDOOR TEMP. THERMISTOR

BLACK

WHITE

RED

FUSE

WHITE

5A-250V

FUSE 20A-250V

BLACK

RED

BLACK

GREEN

W10 W11

1

2

CN71

3

4

CONTROLLER PCB ASSY

1

2

CN70

3

W4

W2

W1

W3

TO OUTDOOR UNIT

RED

W7

WHITE

W8

BLACK

W9

1

2

3

CN801

CN40

CN30

3

4

5

6

1

2

3

4

5

6

1

2

3

RED

BLACK WHITE YELLOW BLUE

RED BROWN BLUE ORANGE YELLOW WHITE

BLACK

RED

WHITE

BLACK

F M

E V

4WV

R(R)

COMPRESSOR

C M

S(S)

C(T)

FAN MOTOR

EXPANSION VALVE

4-WAY VALVE

1

2

3

TERMINAL

TO INDOOR UNIT

1

3

2

(L)

POWER SUPPLY

(N)

G

5

4

2006.02.20 4

INDOOR PCB CIRCUIT DIAGRAM

Model : MW18Y3F

CONTROL UNIT

EZ-0051FHSE

TERMINAL BOARD

OUTDOOR UNIT

N

L

SERIAL

N

L

3

TERMINAL FUSE

REMOTE CONTROL UNIT

103

CN10-1 RED CN10-2 WHITE

CN10-3 BLACK

EARTH

CN7 B3B-XASK

1

3

CN10 B5B-XASK

1 2 3 4 5

EARTH TERMINAL

CONTROLLER PCB ASSY

K04CP-0504WSE-C1

CONTROLLER PCB ASSY

K04CP-0500HSE-C1

W3

RED

W2

BLACK

W1

WHITE

CN11

B2B-XH

1 2

CN12

B3B-XH

1

3

CN3

S7B-ZR-3.4

1 2 3 4 5 6 7

EX-OUT

EX-I N

ZHR-07

CN3-1 RED CN3-2 WHITE

CN3-4 WHITE

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

EXTERNAL COMMUNICATION CONNECTOR

CN201 JB20-07HG

1

2 3 4

INDICATOR PCB ASSY

5

K02CB-0300HSE-D0

6 7

CN8 BS5P-SHF-1AA

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

1 2 3 4 5

CN1 S5 (6-5) B-XARK

6 5 4 3 2

1

2006.02.20 5

CN6

2P-SCN

CN5

2P-SAN

CN2

53325-0510

1 2 3 4 5

1 2

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

PIPE TEMPERATURE THERMISTOR

ROOM TEMPERATURE THERMISTOR

M

LOUVER

Model : MW18Y3F

GND

3 N L

W1

W3

W4

GREEN

WHITE

RED

VA1 270V <TNR>

C3

0.22

<LE>

1

2

L1

8

18

3

R

/2W>

<1

7

14

6

10

IC10

5

4

3

2

5V

R27 390

1

<1/10W>

TERMINAL BOARD

W2

BLACK

3.15A - 250V

R2 2.2 <RGG-5W>

4

3

1K

R6 100K <1/10W>

D7 DAN202K

HEAT EXCHANGER THERMISTOR

F1

ROOM TEMPERATURE THERMISTOR

D1

4

20V

C16

0.1 <F>

5V

R25 10K <1/10W>

3

2

Q1

1

DTC124EUA

C34

0.01

160V

2

1

C5

3

100/

420V

IC7 78M15

123

I

O

G

Q2 DTC124EUA

3

1

R4 100K <RS - 2W>

+

A

2

R26 390 <1/10W>

CN6

CN5

D2 1NH42

5

D

7

S

8

I C5

TNY266P

C18

0.1 <F>

1

2

C7 0.01 <ECQE>

EN / UV

BP

15V

+

C33

0.01

1

2

S S

C17 330/ 25V

5V

R5 2.0M <1/2W>

4 3 2 1

R42 49.9K <1/10W> (1%)

R41 10K <1/10W> (1%)

20V

D3 D1FL20U

R7 18K

<1/10W>

+

C10 100/ 35V

C6

0.1 <F>

MANUAL AUTO SWITCH (KSM0632B)

C11 0.01 <F>

5V

R22 10K <1/10W>

R44 1K <1/10W>

R43 1K <1/10W>

ETS19AB1P8AG

6

5 4 1 2

4

3

A

I C11 PS2501L-1 <KD / KE>

R21 1K <1/10W>

T1

C12 4700P <E>

C46

0.1 <F>

C45

0.1 <F>

10 7

1

2

D4

C13

R24 10K <1/10W>

12V

13.5V

D2FL20U

+

C

A

330 / 25V

C27

0.1 <F>

BZ1 PKM13EPY-4000

BZ

R38 10K <1/10W>

13.5V

R10

C15

47K

0.01 <1/10W>

REF

I C8 TL431 I LP

R11 1K <1/10W>

5V

8

VCC

4

D0

6

TEST

5

GND

IC4-6 LN2003

11 6

CONTROLLER PCB ASSEMBLY

K04CP-0500HSE-C1

CN7 B3B-XASK

1 1223

VA2 270V <TNR>

IC3

CS SK D1 NC

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

R9

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

1 2 3 7

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

12V

D6 D1F60

IC6 NJM7805

I

C19

+

330/ 25V

R37 R36 R35 R34

330 <1/10W> x4

5V

3

O

G

C20

0.1 <F>

5V

R32R31

R33 R30

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

10K <1/10W> x4

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

9

10

52

53

54

55

56

57

58

59

5

6

71

70

69

4

67

33

CN8 BS5P-SHF

1

2

3

4

5

R16 R17

R15 R20

RXD

TXD

VPP

1

3

X1

2

5.00MHz <CSTS>

TIMER SHORT CIRCUIT CLOCK DO DI

TEST

R39 10K <1/10W>

JP1

R18

R19

C26

0.1 <F>

5V

Q6 DTC124EUA

C50 1000P <R>

IC2 BD4842

2

VDD NC

1

VOUT

3

GND

10K <1/10W> x6

JM7 JM6

JM5

JM4

JM3

JM2

IC4-5 LN2003

3

2

1

R53 1K <1/10W>

5V

4

C25

0.1

5

NC

<F>

AUTO RESTART

HOME AUTOMATION

ROOM TEMPERATURE CORRECTION 1

ROOM TEMPERATURE CORRECTION 2

CUSTOM CODE 1

CUSTOM CODE 2

12V

8

C62

0.1

IC9

<F>

4

WIR

5 12

5V 15V

R50 330 <1/10W>

5V

R54 10K <1/10W>

IC12 PS2501L-1 <KD / KE>

1

2

4

3

IC13 PS2501L-1 <KD / KE>

R80

12V

9

IC4

8

5V

R65 10K <1/10W>

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

IC4-4 LN2003

IC4-3 LN2003

IC4-2 LN2003

IC4-1 LN2003

4

3

15V

1

2

R28 10K <1/10W>

RXD TXD VPP

5V

R81 R82 R83

REM

IC9-2 BA10393F

7

1

IC9-1 BA10393F

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

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

R55 4.7K <1/10W>

5V

R23

6

5

+

2

3

+

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> (1%)

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

R68 1K <1/10W>

13

4

14

3

15

2

1

16

C53 100 / 16V

+

A

R84 R85 R86

R87

R89

5V

R62 10K <1/10W>

330 <1/10W> x6

R60 47 <1/10W>

5 12

12V

5 4 3 2 1

D50 RD27M

JP2

12V

D61 DAN217U

CN2 53325-0510

15V

JP3JP4

R67 10K <1/10W>

160V

5V

+

C80 100 / 16V

C81

0.01

D60 D1F60

5V

JP5

LOUVER

CN1 S5 (6-5) B-XARK

1 2 3 4 5 6

A

CN3 S7B-ZR-3.4

INDICATOR PCB

7 6 5 4 3 2 1

12V

CN10 B5B-XASK

5 4 3 2 1

DC FAN MOTOR

RED WHITE BLACK

JP SETTING

REMOTE CONTROL UNIT

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

2006.02.20 6

Model : MW18Y3F

INDICATOR PCB ASSY K03DV-0400WSE-D0

5V

D206 SLR-325

D204 SLR-325

D203 SLR-325

D201 SLR-325

I C201 GP1UM261R

5V

CN201

1

2

C201

0.1

1

2

<F>

1

2

3

4

5

6

7

8

9

5V

R201 47

VCC

OUT

GND

2 1

3

<1/4W>

C202

+

47/ 10V

72006.02.20

OUTDOOR PCB CIRCUIT DIAGRAM

Model : MR18Y3F

N

TO INDOOR UNIT

AC208-230V 60Hz

SERIAL

1

L

2

3

4

5

UL1015 AWG20 W100 WHITE

UL1015 AWG20 W103 BLACK

UL1015 AWG20 W102 BLACK UL1015 AWG14 W101 BLACK

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

W7

W8

W9

U

V

W

UL3271 AWG16

WHITE

UL3271 AWG16

BLACK

RED

B

1

CN30

BLACK

2

3

B

UL3271 AWG14

WHITE

W10 W11

UL3271 AWG14

RED

BB

B2P3-VH-B-C

BLACK

CONTROLLER PCB ASSY

K05CM-0507HUE-C1

TERMINAL

DISCHARGE TEMPERATURE THERMISTOR

PIPE TEMPERATURE THERMISTOR

OUTDOOR TEMPERATURE THERMISTOR

BLACK

BROWN

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

WHITE

YELLOW

BROWN

RED

BROWN

BLUE

ORANGE

YELLOW

WHITE

EXPANTION VALVE

M

F. M.

DC FAN MOTOR

2006.02.20 8

Model : MR18Y3F

AC208 - 230V 60Hz

W1

L

BLACK

VA1 470V

<TNR>

VA2 470V

<TNR>

W2

N

WHITE

RA-302M

GREEN

RED

CN71

CN70

W3

W4

DCV-F

1

2=3

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

1

2

3

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

18

SA1

C802

0.1

<F>

5V

POW_GND

L800

BL02Rn1

L40 5mmJP

L70 BL02Rn1

R72

6.65K 1%

C75

0.1

<F>

R73

38.3K 1%

15V

12V

R71

4.75K 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

R75 10K

R76 10K

R77 10K

1

C1

0.1/ 275V

4 3

RCH4716-070PF07

HY I C1

HU2001 or GK30434

10

R801 1.0K

<1/4W>

R802 560 <1/4W>

12V

I C40

3

I 1

6

I 2

11

I 3

14

I 4

1

COM1

8

COM2

10

NC1

15

NC2

C71

0.1

<F>

C72

0.1 <F>

C73

0.1

<F>

2

L1

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

TD / 4P

TA / 6P

C4

0.01/250V

C5

0.01/250V

5V

2

5V

2

3

5

1

3

K30

FTR-F3

or

G5NB-1A

3

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

C6

3.3/275V

4 3

2 1

4

3

SO / I C80-2

V4-AC / I C80-3

2

12V

4

Q800 DTC143EUA

FANPWM / 2P

2

FAN IN / 17P

C801

0.01 <F>

12V

D80 SLR-332

<RED>

R80

2.2K

12V

JM30

12

I C80

uLN2003

16

1C

15

2C

14

3C 4C

13 12

5C 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

R149

4.7K 1%

1

1B

2

2B

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>

0.047

R150

195K <RN-1/2W> 1% x 4

R151

D110 DAN217U

-12V

R144

22K 1%

R145

22K 1%

C124 2200P

R152

4.7K 1%

LED / 30P

SO / 32P

V4-AC / 27P

PR / 31P

LL25XB60 x 2

W11

2

3

2

3

DAN217U

C137

0.1

<F>

+

C138

2.2/50V

C21

PFCEN / 14P

15V

2 1

3

2 1

3

D111 DAN217U

9

10

I C104-3

BA2902F

R146 39K 1%

FAN IN / 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

D105

-12V

R143

39K

1%

-

+

D100

+

-

D101

+

-

R155 100K

1%

R156 100K

1%

ZXL / 37P

S I / 48P

C20

0.1 <F>

C130

0.1

<F>

R159

4.7K

C129

1000P

8

C500

1

4

1

4

15V

2

1

3

R153

120K 1%

6

5

I C3-2

BA4560

R154 120K

Q103

DTC143EUA

2

15V

R160

68K

1%

R161

1.5K 1%

R137 10K 1%

R140

10K

1%

R139

SERVICE

JM501

0.1

<F>

+

R132

2.2K

10K

1%

1 3

5V

2

R400

0.20 <1W> 1% x 8

R401

R402

R403

R404

R405

R406

R407

R127 R128

10K 1% x 2

7

R142

1.2K 1%

R131

10

5V

1%

2

3

1

R162

68K

1%

3

+

2

-

I C105-1

BA2903F

R138 10K 1%

D109

RB751V

6

-

5

+

I C104-2

BA2902F

R504 10K

<1/10W>

I C500

MB90460

P63

17

VCC

P62

16

AVCC

P46

2

35

P12 P50

3

59

P37

58

P36 P40

60 21

MD2

34

AVR

P11

47

P26

27

P02

28

P03

29

P04

30

P05

31

P06

32

P07

33

P10

57

C

41

P20

42

P21

MD0

43

P22

MD1

44

P23

10

P57

9

P56

8

P55

7

P54 P52

5

RSTX

P53

6

4

AGND

P51

22

X0

GND

23

GND

X1

X500

8.00MHz <CSTS>

R130

220

1%

3

Q102

1

5V

R163 10K 1%

1

6

5

BA2903F

R136 10K 1%

7

D108

RB751V

5V

56

11 25

P00

26

P01

40

P17

36

P13

37

P14

38

P15

39

P16

12

P24

45

P25

46 50

P30

51

P31

52

P32

53

P33

54

P34

55

P35

14

P60

15

P61

18 20 64

P44

63

P43

62

P42

61

P41 P45

1 19 48

P27

13 24 49

R126 100K

I C103-1

BA4560

2

3

R129 100K 1%

I C3-1

BA4560

2 3

DTC143EUA

ZXH / 36P

-

+

I C5-2

R500

10K

C502

0.1 <F>

1%

-

+

-

+

C117

1.0

7

R135

10K

1%

R141

10K

10/25V

CONTROLLER PCB ASSY

K05CM-0507HUE-C1

GT30J122

1%

C501

C119

<F>

1

R502

1.0K

+

15V

0.1

-12V

6 5

R166 3.9K

DAN217U

D107

RB751V

R134

10K

1%

I C104-1

BA2904F

2

-

3

+

I C104-4

BA2902F

13 12

C503

0.1

<F>

C120

0.1 <F>

-

7

+

R122

R123

R158 3.9K

1 1

D115

10K 1%

R133

10K

1%

1

-

+

R503

10K

PFCEN / 14P

R561

C561

0.01 <F>

C139

I C103-2 BA4560

4.7K 1% x 2

3 3

2 2

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

R164

22K

C125

0.1

<F>

15V

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

S I / 48P

R560 100K

5V

C140

0.1 <F>

R121 100K

1%

I C102-2 BA2901F

7

+

6

-

C113 2700P

5V-2

R117 22K 1%

COMP

5V

Q100

L130 ELC0607RA

R120 4.7K 1%

1

C142

0.1

<F>

R115

22K 1%

5

+

4

I C102-1 BA2901F

C135 1000P

C126

+

2.2/ 50V

R168

22K

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

D102

1NH42

R103

<1/2W>

R102

R125 4.7K

11

+

10

-

I C102-4 BA2901F R171

4.7K

2

R165

22K

C127

50V

R170 68K

3 4

100

1

47K

13

5V-2

2.2/

5V

R112 10K 1%

C131

0.1

<F>

2

3

1

5 7 3

R124

4.7K

+

R581 10K

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

MD0 / 1P MD1 / 64P MD2 / 63P TEST / 59P

C103

0.1 <HCP>

<1/4W>

R108 47

R109 22

2

VCC

GAT I N

6

SO

S I

D I

4

GND

NC

I C100

TA8316

I C101

TC 74HC00AF

1

14

2

13

3

12

4

11

5

10

6

7

R101

4.7K

C141

1000P

I C102-3

BA2901F

C110

0.1 <F>

15V

C112

0.1

<F>

5V

C128

0.1 <F>

R169

22K

C132

+

2.2/ 50V

R582 10K

R585

1.0K

0.01 <F>

R93

+

15V

C105

0.1

<F>

14 13 12 11 10

9

8

0.1 <F>

R113 4.7K

+

4

-

C136

0.01 <F>

1

C133

2.2/ 50V

+

R583

1.0K

C572

10K x 4

R91R92

C100-C102 660/450V x 3

+ +

L100 BL02Rn1

15V-2

C104

+

10/ 25V

5V

C106

5V-2

1%

9 8

R1

15K

1%

3

D112 DAN217U

2

5V

C134

0.1 <F>

C580

R584 22K

I C570

BR93LC46

1

CS

2

SK D I

3

NC

6

5V

R90

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

R167 10K

DAN217U

R111

10K

3

1

0.1

<F>

VCC

DO NC

GND

R570

10K

F100

15A-250V

F4

BET 3.15A-250V

PFC5000

-0702F

R104 220K

<2W>

PFC5000-0702F

DC V

R107

3.83K 1%

POW_GND

5V

D106

2 1

R110

3

6.8K

C108

+

2.2/ 50V

DCV / 8P

C109

+

2.2/50V

CT / 3P

ACV / 7P

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

FH2

F50

3A

FH1

DCV-F

POW_GND

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

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

C107

0.1

<F>

COMP

CN580 B10B-PASK-1

WHITE

T AUX

T TXD

T RXD

T MODE

T AUX3

T CK

/ T RES

/ T ICS

UDZS8.2B

L50

BLm21AG610

L51

TEST

DC V

D200

R203 330K

390 <1/10W> x 6

U / 50P

V / 52P

W / 54P

X / 51P

Y / 53P

Z / 55P

I PM-TRIP / 33P

C219 1000P

I PM-CR / 9P

CP-POS / 47P

15V

D50

1SS355

D51

x 2

D52

1SS355

R51

47

C50

47/

35V

POW_GND

U1JU44 x 3

+

C204 47 / 35V

C205 0.1 <F>

R218 4.7K

<1/10W>

470K

<1/8W>

510K

<1/8W>

+

D201

R202 330K

R204

R205

R206

R207

R208

R209

R219

1.0K

R220

1.0K

5V

R339 10K

3

1

Q300 DTC114EUA

DC V - F

R52

1%

R53

x 3

R54

R55

C51

1.0

C203 0.1 <F>

5V

R334

R56

150K

<2W>

R200 39

<1/2W>

+

C202 47 / 35V

2

C320

0.15

<ECQB>

5V

10K

1%

2 1

I C302-1 BA2903F

UF4005

TOP243P

1

MSS

2

S

3

C

4

5V

3

C300 100P <CH>

2200P

I C50

D202

R201 330K

C201 0.1 <F>

C206-C208

D301

1

DAN217U

R327

22K

R337

100K 1%

-

+

C339

C52

<E>

R57 0R0

D53

8

S

7

5

D

+

C200 47 / 35V

D302 RB751V

C311 1000P

5V

2

3

0.01 <F>

<1/16W>

R83 27K <1/10W>

RPZ-1F

1 2

3 4

5

C210 0.1 <F>

C209 0.1 <F>

I PM-G

2200P x 6

R328

1.0K

5V

R336

R335

10K

1%

R338 1%

5V

R81

1.0K

7

I C302-2

BA2903F

T60

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

C85

+

10/

25V

6

-

5

C84

0.1 <F>

D60

D1FL20U

D61

D1FL20U

D62

D1FL20U

C66 100/ 25V

D64

1SS355

L300 ELC0607RA

C222 1.0

D203 MTZJ T-77 24B

C213

0.022 <F>

I PM-G

R330

4.7K 1%

R332

4.7K 1%

15V

C306

0.1

<F>

C305

0.1

<F>

-12V

D304

15V

DAN217U

C86

470P

C87 330P

C64

+

330/ 25V

+

C220 47 / 35V

I PM-G

2 1 2 1

3 3

I C60

BA7805

D63

1SS355

1

G

2

C69

+

100/ 25V

-12V

I C200

FSBS20CH60

1

VCC

2

COM

I N

3 4

I N

5

I N

6

VFO

7

CFOD

8

CSC

9

I N

10

VCC

11

VB

12

VS I N

13 14

VCC

15

VB

16

VS I N

17 18

VCC

19

VB

20

VS

R210 1.0K

C214 2200P

W V U

R305

R306

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

D303

DAN217U

C65

+

470/ 25V

3IO

R303

R304

NU

NV

NW

U

V

W

P

R309

5.76K 1%

R310 143 1%

C67

0.1 <F>

21

22

23

24

25

26

27

R301R302

U V W

W7

W8 W9

U V W

<1W>

I PM-G

R307 195K <RN-1/2W>

R308 195K <RN-1/2W>

R311

8.66K 1%

R61

1.0K

R211

R212

R213

R214

R215

R216

R217

1% x 7

15V

12V

5V

POW_GND

C68

+

100/ 25V

DC V

C218

0.1

<HCP>

2006.02.20 9

ERROR CONTENTS

Model : MW18Y3F / MR18Y3F

Self-diagnosis function table (Flashing LED Display)

* Detailed Trouble Display (secondary level) can be indicated by pressing Test Operation button.

Trouble Display (primary)

Error Operation Timer Error Operation Timer

Serial signal error

Indoor unit thermistor error

Normal 1 sec

blinking

0.5sec 2 times

0.1sec blinking

Detailed Trouble Display (by Test Button)

Serial reverse signal error at operation start up

Signal reverse signal error during operation

Serial forward signal error at operation start up

Serial forward signal error during operation

Indoor temperature thermistor open

Pipe thermistor open or short

0.1sec blinking

0.5sec 2 times

0.5 sec 4 times

0.5sec 5 times

0.5sec 2 times

0.5sec 3 times

Detailed Error Item

When a signal is not read continuously for 10 secs from power relay ON immediately after operation starts >>Cooling 0 code transmission, automatic reset When a signal is not read for 20 secs thereafter >>Trouble display continues and power relay OFF >>Permanent stop

Normal Serial Forward Signal can not be received more than 10 secs

>>Releases when it becomes normal

Normal Serial Forward Signal can not be received more than 10 secs ( after receiving effective forward transfer signal)

>>Releases when it becomes normal

Thermistor detection value is open when AC plug is inserted

IndoorIndoorIndoorIndoorIndoor OutdoorOutdoorOutdoor

>>Releases when value becomes normal Thermistor detection value is open or short

when AC plug is inserted

Outdoor unit thermistor error

Indoor unit control error

0.5sec 3 times

0.5sec 4 times

0.1sec blinking

Discharge thermistor open or short

Heat exchanger thermistor open

Outdoor temperature thermistor open or short

Forced automatic SW welded

Main relay welded

Power interruption error

0.1sec blinking

0.5sec 2 times

0.5sec 3 times

0.5sec 4 times

0.5sec 2 times

0.5sec 3 times

0.5sec 4 times

>>Releases when value becomes normal

Thermistor detection value is open or short

>>Outdoor unit stops

Releases when it becomes normal

Thermistor detection value is open

>>Outdoor unit stops

Releases when it becomes normal

Thermistor detection value is open or short

>>Outdoor unit stops

Releases when it becomes normal

Forced Auto SW is ON for more than 10 secs continuously

>>Error is indicated while it is ON Normal Operation other than error indication

Serial Reverse Signal is received 1 min. after Main relay becomes OFF

>>Error is indicated while serial reverse signal is input on normal operation Normal operation except error indication

50/60Hz is not detected after 4 secs of power ON.

2006.02.20 10

>>Error is indicated and unit is stopped

Trouble Display (primary)

Error Operation Timer Error Operation Timer

Outdoor unit control error

Indoor fan motor error

Refrigerant cycle error

Optional function error

0.5sec 5 times

0.5sec 6 times

0.5sec 7 times

0.5sec 8 times

1 sec blinking

0.1sec blinking

Detailed Trouble Display (by Test Button)

Current trip Current trip error is 2nd time within

CT abnormal Current detection value is 0A for more

Compressor rotation error

Outdoor unit fan drive system abnormal

Abnormal lock Detected rotation is 0 r.p.m. at start up or

Abnormal rotation Detected rotation is 1/3 of target r.p.m. at

Discharge temperature abnormal

Cooling high pressure abnormal rise

Active filter voltage abnormal (3rd time)

Active filter foltage abnormal (1st time)

0.1sec blinking

0.5sec 2 times

0.5sec 3 times

0.5 sec 5 times

0.5sec 6 times

0.5sec 2 times

0.5sec 3 times

0.5sec 2 times

0.5sec 3 times

0.5sec 2 times

0.5sec 3 times

Detailed Error Item

start up

>>Permanent stop

than 1 sec when compressor is operated at more than 56rps

>>Automatic release after 3 min. ST

Compressor location detection error (incl. failed start up) for 3 times

>>Permanent stop

When outdoor fan abnormal fan motor duty abnormal operated 5 times

>>Permanent stop

at 56 secs after Fan mode is selected

Indoor

>>Permanent stop

start up or at 56 secs after Fan mode is selected

IndoorOutdoorOutdoor Outdoor Outdoor Outdoor Outdoor Outdoor

>>Permanent stop

Discharge Temperature protection (Discharge temperature is 110degC) operated 2 times

>>Permanent stop High pressure rise protection (Outdoor

heat exchanger temperature is 65degC) operated

>>Comp. OFF (releases after 3min.ST)

Outdoor

Error is indicated while 3 min.ST

Active Filter voltage error operated 3 times

>>Permanent stop Active Filter Module error or open

detection protection operated

2006.02.20 11

>>Automatic release after 3 min. ST

DISASSEMBLY ILLUSTRATION

Model : MW18Y3F

5

51

6

5

4

2

1

2006.02.20 12

2

7

Model : MW18Y3F

236

26

48

52

20

24

29

27

39

40

37

28

46

43

21

32

30

61-2

61-1

36

32

38

42

33

2006.02.20 13

Model : MR18Y3F

14

37

13

11

19

32

10

29

25

24

37

8

5

22

12

21

15

26

35

1

2

18

34

20

3

6

36

39

16

2006.02.20 14

7

4

PARTS LIST

INDOOR UNIT

Ref.

No.

20 Gear-A 9309994003

21 Casing Assy 9311354079

24 Crossflow Fan Assy 9307836015

26 Clamp (Motor) 9310102008

27 Shaft Holder-C Assy 9306628017

28 Drain Hose Assy 9314147012

29 Drain Cap Assy 9314493010

30 Wire Clamper 9311946014

32 Cover (Switch) 9313943011

33 Evaporator Total Assy 9313099015

Description

1 Air Filter 9309997011

2 Filter (Electric + ION) 9312152018

4

Holder (Filter) 9306602017

5

Clamper (Grille) 9306755010

6 Front Panel 9309999053

7 Intake Grille Assy 9313566043

Part No.

MW18Y3F

Ord. Q'ty

36 Joint Pipe Assy 9313792015

37 Insulation (Pipe)-E 9304607007

38 Holder (Evaporator)-L Assy 9313174019

39 Holder (Evaporator)-R 9309983014

40 Water Seal 9312912018

42 Air Seal 9310611005

43 Terminal 9701955114

46 Step Motor 9900139025

48 Fan Motor Assy 9602109012

51 Remote Control Unit 9315260017

52 Bracket Panel 9310001004

61-1 Flow Control Panel-U 9309991033

61-2 Flow Control Panel-Z 9309992030

236 Controller PCB Assy 9707193015

(K04CP-0500HSE-C1)

--- Pipe Temperature Thermistor 9702039042

---

--- Indicator PCB Assy 9705039032

---

Room Temperature Thermistor

Evaporator B Assy 9311275022

9700801108

2006.02.20

15

When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column.

OUTDOOR UNIT

Ref.

No.

1 Top Panel Assy 9309230057

2 Top Panel Seal 9309228016

3 Cabinet Sub Assy 9314809040

4 Blow Down Grille 9308884015

5 Cabinet Right Assy 9309236011

6 Fan Ring 9308885012

7 Grip 9308880017

8 Switch Cover Assy 9309237049

10 4-Way Valve 9970056017

11 Expansion Valve Assy 9311641018

12 Strainer 9311440017

13 Condenser Assy 9311382027

14 Thermistor Spring-A 313728262708

15 Thermistor Spring-A 9300089012

16 Propeller Fan 9309909014

18 Motor Bracket 9308872012

Description

Part No.

MR18Y3F

Ord.

Q'ty

19 Separator 9312971015

20 Base Assy 9308869081

21 3-Way Valve Assy 9315159014

22 2-Way Valve Assy 9313064013

24 Cord Clamp 9307271014

25 Terminal 9703874024

26 Inverter PCB Assy 9707039085

29 Fuse 0600382018

32 Expansion Valve Coil 9900057039

34 Fan Motor 9602133017

35 Compressor Assy 9313764012

36 Emblem Rear 9312661015

37 Heat Exchanger Thermistor 9900148027

39 Solenoid Coil 9970033025

--- IPM 9705720015

---

Outdoor Temp. Thermistor 9900210045

Thermistor

Thermistor Assy--- 9900148027

9900041014

2006.02.20

16

When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column.

STANDARD ACCESSORIES

Name and Shape

Wall hook bracket

Remote control unit

Remote control unit holder

Part No.

MW18Y3F

9312752010

9314990038

9305642014

Battery (penlight)

Cloth tape

Tapping screw (big)

( 4 x 25)

Tapping screw (small) ( 3 x 12)

Air cleaning filter

Air cleaning filter frame

0600185534

9310519004

0700076046

0700019036

9312153015

9311925033

9306602017

Seal A

2006.02.20 17

9304536000

0511G2952

Friedrich MR18Y3F, MW18Y3F User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual