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MODEL RAS-25CNH2

RAC-25CNH2

A

B

TERMINAL
BOARD

BLK

WHT

GRN

15A FUSE

SURGE-
ABSORBERA

VARISTOR1

VARISTOR3

0V

CT1

C502

C507

C513

C508

C514

C506

R504

C001

C503

C512

NF COIL1

NF COIL2

RED

RED

COIL

3.15A

 FUSE

V

ARIST

OR2

SCP

 RELA

Y

POWER RELA

Y

BLU

YEL

POWER RELAY

RCP RELAY

C505

R503 R502

TUB8

TUB2

TR1

DIODE
STACK

TR2

TUB4

TUB3

TUB1

TUB5

TR3

TUB7

TUB6

TB7

TB6

C21

R1

R6

R12

C1

1

C12

C15

C13

C14

R20

R29

R14

C18

C1

R7

C6

R9

R10

C8

R16

C10

R17

R1

1

R31

R30

R25

R3

R4

C9

C17

R22

C16

R19

R21

R13

R26

R2

C19

R5

R27

R28

C20

R24

D1

R15

POWER P. W. B.

REACTOR

7

9 8

12 11 10

16 15 14 13

6 5 4 3

8

10

7

13

14

12

9

11

15

16

4

1

5

2

6

3

1

2

Q3

Q4

0V

0V

0V

0V

0V

C7

R18

R23

0V

REP (5V) OUT

VCC

GND

ON/OFF SYNC

CS

VC

IDET

CT

IFB

OVP

IIN

VFB

VDET

VIN

C5

IC1

C2

R8

C4

C51

1

C510

R51

1

R510

R505

+12V

+12V

Q2

Q5

Q1

C3

18

17

19

20

21

2

2

1

1

5

3

1

2 1 3 6 7 4

5 2 1 3 6 7 4

3

3

4

4

5

5

6

6

11

12

13

14
15

16
17

18

19

20

10

8

5

3

9

7

6

2

1

4

3

5

1

2

+

–

+

+

+

+

+

+

+

+

+

+

+

+

0V

0V

0V

0V

JW1

CN10 WHT
(PH-7P)

C032

JW041

R041

R042

Q042

Q041

+5V

JW042

(5-H)

(5-H) (5-H)

(5-H)

E

H

F

G

J
K

L

M

N

BICID

TRANS

R217

R218

C218

R214

D213

+17V

D210

C207

D209

C214

(8-C)

(8-C)

(8-C)

(9-C)

(9-C)

(9-C)

(10-C)

(11-C)

+12V

5V

– 5V

LD304

C221

R213

C212

C210

R210

R209

D208

C213

D204

C215

D205

C208

D208

C209

R305

0V

C227

D207

REG1

1

2

1

2

4

3

3

4

PQ8

R211

C230

C711
C712

C224

PQ9

Q202

C208

REG2

R201

R202

R204

R203

D201

C201

D202

R208

IC1

FB1

C232

R226

C231

PQ9

D203

R223

D215 R224

C233

R215

C219

C223

R216

D216

CN3
(VH-2P)

C

D

6
5
4
3
2

1

2

1
2

3

1

2

1

2

1

3

1

4

3

2

1

2
3

1

2

3

4

8

7

6

5

4
5
6
7
8

1

+5V

+12V

R512

R513

R514

R515

CN4 WHT

(XH-2P)

CN5 BLU

(XH-2P)

CN6 RED

(XH-2P)

0V

0V

0V

OVER HEAT THERMISTOR

DEFROST THERMISTOR

OUTSIDE THERMISTOR

32

33

41

42

40

50

54

53
52
51

55

45

70

71
72

69

68

67

66

65

64

63

62

61

60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41

11

39

1

12

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

73
74

75

76

78

79

47

48

49

77

80

31

30
29

32

33

34

35

36

37

38

39

40

18

19

20

21

22

28
27

26

25

23

22

24

21

43

44

38

36

37

35

34

31

+

+

56 57 58 59 60

46 1 2 3 4

10

9

8

7

5

13

27

28

29

30

6

14

15

16

17

+

+

+

12V

12V

5V

5V

5V

5V

5V

+5V

0V

0V

0V

0V

0V

0V

-5V

-5V

C331

C332

C333

JW1

R301

COOLING

NORMAL

DRIVER1

SERVICE SW

+

–

+

–

+

–

+

–

+5V

+12V

+12V

+12V

0V

0V

0V

-5V

26

25

24

23

+

+

+

+

+

+

C106

C104

C105

R103

R102

R101

C103

C102

C101

R106

R105

R104

2

1

6

5

8

7

PQ2

+

C404

0V

(11-G)

R407

R401

R508

R507

R404

D402

D401

C401

1

2

2

1

6

5

8

7

PQ3

+

C405

R408

(4-E)

R402

R405

D404

D403

C402

4

5

2

1

6

5

8

7

PQ4

2

1

6

5

(4-E)

8

7

PQ5

+

C406

R409

R403

R406

D406

D405

C403

7

8

2

11

4

6

H

(4-E)

L

(4-E)

K

(4-B)

N

U

Q

(4-D)

(6-H)

M

S

(4-E)

J

8

9

3

5

7

1

U

WHT

YEL

RED

V

W

C504

R533

R534

R531

C501

R532

+

WHT

BLK

BLK

BLK

WHT

BRN

BRN

BRN

GLY

ACT-MODULE

MAIN P. W. B.

(5-E)

JW

CN11 WHT
(PH-6P)

P

A

Q

R

(2-J)

(2-J)

(7-C)

JW001

+5V

5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

5V

R323

D009

R550

C515

R038

C031

0V

0V

0V

0V

0V

0V

D002

0V

0V

0V

0V

0V

(7-E)

A

(5-F)

–

+

–

+

XTAL

+5V

+5V

+5V +5V

R802 Q802

C801

C802

C803

R813

R801

0V

0V

0V 0V

+12V

PQ701

R233

R705

R706

+12V

C708

C710

C709

NF COIL3

L701

0V

Q701

D701

1

4

2

3

REVERSING
VALVE

CN2  RED
(VH-2P)

BRN

RED

GRN

TERMINAL
BOARD

INTERFACE
RELAY

TACHOMETER

CN13  WHT

(E1-3P)

TEST

E

2

PROM

E

2

PROM

CN18 WHT

(PH-8P)

CN17 WHT

(PH-4P)

+5V

+5V

+5V

+5V

+5V

-5V

+12V

+12V

0V

0V

0V

0V

5V

R520

R519

C517

R521

R522

D502

D503

D501

D504

(9-F)

(5-E)

(5-D)

T

P

R

0V

0V

0V 0V

0V

0V

0V

0V

0V

0V

+5V

+5V

+5V

+5V

+12V

D

S

B
C
E

(3-D)

(8-C)

(3-D)

(3-D)

(3-D)

T

(2-J)

LD302

LD301

LD303

F

(4-E)

G

R41

1

R414

R424

R421

2

1

6

5

8

7

PQ6

R412

R415

R425

R422

2

1

1

6

5

8

7

PQ7

R413

R416

R426

R423

+

R417

D412

D41

1

C41

1

2

3

4

CN28

(XH-4P)

10

COMPRESSOR

POWER MODULE

CN27

(XH-6P)

+

–

OUTSIDE TEMP.

DEF

OH

I

s

ROM SERECTION

AVcc

AVcc
SDI

SDO

Vcc

ø60

U 

+

V 

+

W 

+

U 

–

V 

–

W 

–

POR

Vss

CHNG

15/20

COOLING

HEATING

SELF CHECK 2

SELF CHECK 1

PAM/PWM

60

°

 el BEFORE CORRECTION

FAN A

RESET

NMI

STBY

EXT

AL

XT

AL

Vcc

A

Vss

V

d

I

d

Vss

MD1

MD0

WDT

FAN D

FAN C

FAN
B

Ip

ACT-ERR

ACT

-CHOP

2

-W

AY

 VA

LV

E

REVERSING V

A

LV

E

STICK RELA

Y

INRUSH CURRENT

 PROTECTION RELA

Y

POWER RELA

Y

IF-CLOCK

SDA

 (EEPROM)

SCL

 (EEPROM)

FORCED COOLING

F

AN-ER

A

B

C

A
B

ACT ON/OFF
100/200V

FANCHOP

100/200V

A

B

+

–

+

–

+

–

+

–

19

21

23

26

25

30

29

28

27

3

32

8

29

28

27

15

30

18

19

21

22

23

24

2

25

18

17

35

8

12

11

10

9

5

33

34

20

1

3

4

7

36

11

8 13 14 28 31

13

31

9

20

22

24

14

+

1

V

W

X

10

7

6

5

17

11

12

18

2

+

–

+

–

+

–

+

–

+

+

+

+

4

33

16

15

+

+

+

+

+

+

+

7

6

5

4

3

8

1

2

3

2

V

5

4

W

7

6

X

U

1

8

5

3

1

M

ZD901

R908

+12V

C901

F-0V

F-0V

+5V

R925

R909

C905

F-0V

F-0V

F-0V

+12V

+5V

-5V

C904

F-0V

F-0V

F-0V

F-0V

F-0V

F-0V

C903

C902

C906

Q901

IC3

R926

R910

C920

IC4

R927

IC1

IC2

C908

F-0V

C911

C912

C913

C907

C909

Q908

Q909

Q910

C916

R918

R920

R922

R923

R924

C914

C915

R911

R912

R913

R914

R915

R916

F-0V

C917

D901

C918

C919

D902

D903

D904

D905

D906

3.15A

 FUSE

(7-C)

FAN MOTOR

CN24  WHT

(VH-3P)

R917

F-0V

DRIVER2

+12V

+5V

+5V

+5V

+5V

+5V+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

+5V

-5V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

+12V

+12V

+12V

+12V

+12V

-5V

FAN-HIC

VREF

AVSS

AVDD

VDD

VB (F2)

VA (F1)

VC (F0)

(F3)

A+

B+

C+

A–

B–

C–

RES

60

°

el

Xin

Xin1

Ncom

HU
HV
HW
S3
IP
CNTR
CNVSS
VSS
CHOP

IP

POR

M34225M2 (   : M50927)

– 29 –

R101

180K

0.5%

1/2

A

R210

1.8K

5%

1/4

A

R211

1K

5%

1/4

A

R213

3.3K

5%

2

H

R214

1.2K

5%

1

H

R215

680

5%

1/4

A

R216

0.39

5%

1

H

R217

1.8

5%

1/6

A

R218

1.8

5%

1/6

A

R223

2.7K

5%

1/4

A

R224

2.7K

5%

1/4

A

R226

3.3K

5%

1/4

A

R233

1.6K

5%

1/6

A

R301

1K

5%

1/6

A

R305

R323

130K

1%

1/6

A

R401

6.2

5%

1/2

A

R706

10K

5%

1/6

A

NO MARK… MAIN P. W. B
                 … POWER P. W. B
                 … ACT P. W. B

ACT

P

R102

180K

0.5%

1/2

A

R103

180K

0.5%

1/2

A

R104

47K

1%

1/6

A

R105

47K

1%

1/6

A

R106

47K

1%

1/6

A

R201

430K

5%

1/2

A

R202

430K

5%

1/2

A

R203

200K

5%

1/2

A

R204

200K

5%

1/2

A

R208

10

5%

1/4

A

R209

1K

5%

1/4

A

R402

6.2

5%

1/2

A

R403

6.2

5%

1/2

A

R404

3.9

5%

1/2

A

R405

3.9

5%

1/2

A

R406

3.9

5%

1/2

A

R407

1k

5%

1/6

A

R408

1k

5%

1/6

A

R409

1k

5%

1/6

A

R411

10

5%

1/4

A

R412

10

5%

1/4

A

R413

10

5%

1/4

A

R414

10

5%

1/4

A

R415

10

5%

1/4

A

R416

10

5%

1/4

A

R417

1K

5%

1/6

A

R421

10

5%

1/4

A

R422

10

5%

1/4

A

R423

10

5%

1/4

A

R424

10

5%

1/4

A

R425

10

5%

1/4

A

R426

10

5%

1/4

A

R502

100

5%

10

H

R503

100

5%

10

H

R504

470K

5%

1/2

A

R505

2.2

5%

5

H

P

P

P

P

R507

180K

1%

1/2

A

R508

180K

1%

1/2

A

R510

470K

5%

1/2

H

R511

470K

5%

1/2

H

R512

3.74K

1%

1/6

A

R513

3.01K

1%

1/6

A

P

P

R514

3.01K

1%

1/6

A

R515

2.7K

5%

1/6

A

SYMBOL

W

LIMIT

Ω

RETER VALUE

RESISTOR (

Ω

)

FORM

SYMBOL

W

LIMIT

Ω

RETER VALUE

RESISTOR (

Ω

)

FORM

R801

39

5%

1/4

A

R802

39

5%

1/4

A

R813

1K

5%

1/6

A

R908

3K

2%

1/6

A

R909

26.7K

1%

1/6

A

R910

5.1K

1%

1/6

A

R911

47K

1%

1/6

A

R912

47K

1%

1/6

A

R913

47K

1%

1/6

A

R914

180K

0.5%

1/2

A

R915

180K

0.5%

1/2

A

R916

180K

0.5%

1/2

A

R917

2.2

2%

2

A

R918

30K

5%

1

H

R705

7.5K

5%

1/2

A

R920

30K

5%

1

H

R922

15K

5%

1/2

A

R923

15K

5%

1/2

A

R924

620

2%

1/4

A

R925

10K

5%

1/6

A

R926

1.5K

1%

1/6

A

R041

R042

R927

68K

5%

1/6

A

R038

825

1%

1/6

A

C101

1.5

100

D

R

SYMBOL

TYPE

V

µ

F

RETER VALUE

CAPACITOR (F)

C102

1.5

100

D

R

C103

1.5

100

D

R

C104

2.2

100

D

R

C105

2.2

100

D

R

C106

2.2

100

D

R

C201

0.01

AC250

C

H

C206

1000P

AC300

C

H

C207

330

10

D

R

C208

330

25

D

H

C209

220

10

D

R

C210

390

63

D

H

C212

180

10

D

R

C213

180

10

D

R

C214

180

10

D

R

C215

180

10

D

R

C218

220

25

D

R

C219

1

450

D

R

C221

0.1

50

C

R

C222

C223

470P

1KV

C

H

C224

0.1

50

C

R

C227

C230

C231

100

25

D

H

C232

470P

50

C

H

C233

1000PF

50

C

H

C331

100

25

D

R

C332

180

10

D

R

C333

180

10

D

R

C401

68

6.3

D

R

C402

68

6.3

D

R

C403

68

6.3

D

R

C404

0.1

50

C

R

C405

0.1

50

C

R

C406

0.1

50

C

R

C411

68

6.3

D

R

C501

740

475

D

C502

0.01

AC300

C

H

C503

0.01

AC300

C

H

C504

0.01

AC300

C

H

C505

0.56

630

F

H

C506

0.68

AC300

F

H

C507

0.01

AC300

C

R

C508

0.01

AC300

C

R

C509

C510

100

250

D

H

C511

100

250

D

H

C512

0.68

AC300

F

H

C513

0.01

AC300

C

H

C514

0.01

AC300

C

H

C515

47

6.3

D

R

C517

0.1

50

C

R

C708

0.15

50

F

R

C709

0.01

AC300

C

H

C710

0.01

AC300

C

H

C711

0.01

AC300

C

H

C712

0.01

AC300

C

H

C801

0.15

50

F

R

C802

0.022

50

F

R

C803

0.15

50

F

R

R519

390

5%

1/6

A

R520

390

5%

1/6

A

R521

5.1K

5%

1/6

A

R522

5.1K

5%

1/6

A

R531

180K

5%

1/2

A

R532

180K

5%

1/2

A

R533

180K

5%

1/2

A

R534

180K

5%

1/2

A

R550

FORM

P

P

P

P

P

P

P

P

P

P

P

P

TRANSISTOR

SYMBOL

TYPE

FORM

Q701

2SC1214CT

R

C901

22

10

D

VR

SYMBOL

TYPE

V

µ

F

RETER VALUE

CAPACITOR (F)

C902

100

25

D

PF

C903

180

10

D

PF

C904

180

10

D

PF

C905

1

50

D

VR

C906

4700PF

50

F

R

C909

0.1

50

F

R

C914

4.7

100

D

R

C915

4.7

100

D

R

C916

4.7

100

D

R

C917

4700PF

50

C

R

C918

4700PF

50

C

R

C920

220

10

D

R

C001

4

AC400

F

H

FORM

P

C907

0.1

50

F

R

C908

0.1

50

F

R

C911

10

100

D

R

C912

10

100

D

R

C913

10

100

D

R

C919

4700PF

50

C

R

Q202

AA1A4M

R

Q802

2SC1214CT

R

Q901

AA1A4M

R

Q908

2SC3632

H

Q909

2SC3632

H

Q910

2SC3632

H

Q001

Q041

Q042

C031

100

10

D

R

C032

0.1

50

C

R

JUMPER WIRE

SYMBOL

TYPE

FORM

JW001

J/W1

JW

A

JW041

JW042

JW1

JW

A

P

IC

SYMBOL

TYPE

FORM

REG2

SE012N

H

REG1

MC7805CT

H

IC1

STR-F6523

H

E

2

PROM

BR24C01A

B

FAN-HIC

HX-2474A

H

DRAIVER1

STA305A

H

DRAIVER2

STA305A

H

ZENER DIODE

SYMBOL

TYPE

FORM

ZD901

HZ7A1

R

LED

SYMBOL

TYPE

FORM

LD303

RED

R

LD302

RED

R

LD301

RED

R

LD304

INDUCTOR

SYMBOL

TYPE

FORM

L701

100

µ

H

H

FB1

BL01RN1

A

CT1

TC21U1003

H

P

PHOTO COUPLER

SYMBOL

TYPE

FORM

PQ2

PC922

B

PQ701

PS2501

B

PQ3

PC922

B

PQ6

PC922

B

PQ7

PC922

B

PQ8

PS2501

B

PQ9

PS2501

B

PQ4

PC922

B

PQ5

PC922

B

DIODE

SYMBOL

TYPE

FORM

D202

1GH46

A

D201

RU1P

A

D203

1SS120

A

D206

AK04

A

D207

RN3Z

H

D208

AK04

A

D209

AK04

A

D204

AK04

A

D205

RN2Z

H

D210

AK04

A

D213

1GH46

A

D215

1SS120

A

D216

1S2473

A

D401

1GH46

A

D501

1SS120

A

D502

1SS120

A

D503

1SS120

A

D504

1SS120

A

D701

1SS120

A

D901

D1NL40

A

D902

D1NL40

A

D903

D1NL40

A

D904

RU1P

A

D905

RU1P

A

D906

RU1P

A

D002

1SS120

A

D009

1SS120

A

D402

1GH46

A

D403

1GH46

A

D404

1GH46

A

D405

1GH46

A

D406

1GH46

A

D411

1GH46

A

D412

1GH46

A

Содержание RAC-25CNH2

Страница 1: ...2 REFER TO THE FOUNDATION MANUAL INDOOR UNIT RAS 25CNH2 OUTDOOR UNIT RAC 25CNH2 WALL TYPE SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT APRIL 1998 H A P M TYPE MODEL 1ø 220V 240V 50Hz POWER SOURCE 910 190 1 150 COOL 1 250 160 1 350 HEAT TOTAL INPUT 4 20 3 85 COOL 5 75 5 25 HEAT TOTAL AMPERES RATED MAX COOLING CAPACITY HEATING CAPACITY ...

Страница 2: ...r use in repairs or inspection should be accurately calibrated in advance 7 In installing the unit having been repaired be careful to prevent the occurence of any accident such as electrical shock leak of current or bodily injury due to the drop of any part 8 To check the insulation of the unit measure the insulation resistance between the power cord plug and grounding terminal of the unit The ins...

Страница 3: ...of parts Even rejected goods should be handled in the same way Fig 1 Conductive Container 2 When any part is handled uncovered in counting packing and the like the handling person must always use himself as a body earth Make yourself a body earth by passing one M ohm earth resistance through a ring or bracelet 3 Be careful not to touch the parts with your clothing when you hold a part even if a bo...

Страница 4: ... the screwed part using a rag plate Soldering iron Grounding wire Fig 4 Grounding a soldering iron Use a high insulation mode 100V 10M or higher when ordinary iron is to be used 7 In checking circuits for maintenance inspection or some others be careful not to have the test probes of the measuring instrument shortcircuit a load circuit or the like Metal plate of aluminium stainless steel etc Stapl...

Страница 5: ...peration and then re started in a moment cooling operation does not start for 3 minutes it is not abnormal and this is the result of the operation of IC delay circuit This IC delay circuit ensures that there is no danger of blowing fuse or damaging parts even if operation is restarted accidentally 4 This room air conditioner should not be used at the cooling operation when the outside temperature ...

Страница 6: ...POWER RELAY STICK RELAY POWER SWITCH TEMPORARY SWITCH SERVICE SWITCH TRANSFORMER VARISTOR NOISE SUPPRESSOR REMOTE CONTROL SWITCH LIQUID CRYSTAL THERMOSTAT FUSE CAPACITY RAS 25CNH2 20 W NO NO NO NO NO NO NO NO YES YES NO NO NO NO YES YES IC SPECIFICATIONS NO 690g UNIT PIPES 690g for piping set of 5 8m REFRIGERANT CHARGING VOLUME Refrigerant 22 WITHOUT REFRIGERANT BECAUSE COUPLING IS FLARE TYPE P 10...

Страница 7: ...oor unit Refer page 18 POWER PLUG NOT PROVIDED INDOOR UNIT INDICATORS Light indicator showing the operating condition Refer page 7 SUCTION GRILL AIR INLET HORIZONTAL DEFLECTOR VERTICAL DEFLECTOR AIR OUTLET Refer page 14 REMOTE CONTROL Send out operation signal to the indoor unit So as to operate the whole unit Refer page 8 DRAIN PIPE Condensed water drain to outside CONNECTING CORD AIR INLET BACK ...

Страница 8: ...e in automatic mode OPERATION INDICATOR OPERATION LAMP This lamp lights during operation The OPERATION LAMP flashes in the following cases during heating 1 During preheating For about 2 3 minutes after starting up 2 During defrosting Defrosting will be performed about once an hour when frost forms on the heat exchanger of the outdoor unit for 5 10 minutes each time TIMER LAMP This lamp lights when...

Страница 9: ...ng it make sure the unit can be controlled by the remote control unit at the fixing position REMOTE CONTROLLER HOLDER START STOP Button Press this button to start operation Press it again to stop operation SLEEP Button Use this button to set the sleep timer Page 12 Reserve Button Timer setting reservation OFF TIMER Button Select the turn OFF time ON TIMER Button Select the turn ON time Transmissio...

Страница 10: ...y 1 C for each 1 time press Up Down You can raise or lower the temperature setting by a maximum of 3 C The display does not indicate the preset temperature in the Automatic mode Device will receive the setting by a beep You can slightly adjust the room temperature 1 C C CONDITION OF AUTOMATIC OPERATION The selected mode of operation will not change during the operation even though the room tempera...

Страница 11: ...SETTING Every time you press the button fan speed will change as the below sequence HEATING AUTO HIGH MED LOW COOLING DEHUMIDIFYING LOW FIXED 4 Press the START STOP button Operation start with a signal received sound beep Press the START STOP button As the settings are stored in memory in the remote control unit you only have to press the Start Stop button in order to use the same setting next tim...

Страница 12: ...the beginning of setting time 6 hours was set Setting time will change according to the below sequence The value change more quickly if you keep pressing the button ON Timer Reservation 0 5 1 0 1 5 9 5 10 11 12 0 5 hour interval 1 hour interval 1 Press the Cancel button As the time settings are stored in remote controller memory you only have to press the Reserve button in order to use the same se...

Страница 13: ... controller toward the indoor unit and press the SLEEP button The timer information will be displayed on the remote controller The TIMER lamp lights with a beep from the indoor unit How to Cancel Reservation Point the signal window of the remote controller toward the indoor unit and press the CANCEL button The RESERVED sign goes out with a beep and the TIMER lamp turns off on the indoor unit NOTE ...

Страница 14: ...e and circulation are not varied The FAN SPEED will be set to LOW immediately Fan Heating The room temperature will be controlled 5 C below the temperature setting 30 minutes after the setting of the sleep timer The FAN SPEED will be set to LOW immediately Operation with the sleep timer The room temperature is kept at about 12 C minimum The room temperature is kept at about 25 28 C Sleep timer set...

Страница 15: ...r deflector as shown in the figure and adjust the conditioned air to the left and right If the AUTO SWING button is pressed once the horizontal air deflector swings up and down If the button is pressed again the deflector stops in its current position Several seconds about 6 seconds may be required before the deflector starts to move Use the horizontal air deflector within the adjusting range show...

Страница 16: ...tall the new batteries The direction of the batteries should match the marks in the case 1 Do not use new and old batteries or different kinds of batteries together 2 Take out the batteries when you do not use the remote controller for 2 or 3 months 3 The batteries must be of the LR03 type CAUTION Push and pull to the direction of arrow ...

Страница 17: ...with your wake up time in the morning This will enable you to enjoy a comfortable room temperature Please use the timer effectively Dusty air filter will reduce the air volume and the cooling efficiency To prevent from wasting electric energy please clean the filter every 2 weeks Please pay attention to the room temperature and air flow direction when operating the unit for baby children and old f...

Страница 18: ...cannot be achieved When the power is resumed after a power failure the indoor unit will still remain OFF To operate the unit please press the ON OFF button again When the indoor unit is not to be used for a long period of time please switch off the power from the mains If the power from mains remains ON the indoor unit still consumes about 8W in the operation control circuit even if it is in OFF m...

Страница 19: ...lift the filter and release the claws 4 locations at the lower part of the front cover and remove the filter from the lower side 2 Remove dust from the filter using a vacuumcleaner If there is too much dust use neutral detergent After using neutral detergent wash with clean water and dry in the shade 3 Install the filter Set them with FRONT mark facing front Be sure to hold the front grille with b...

Страница 20: ...e suction grille with both hands to detach and attach it CAUTION Do not splash or direct water to the body of the unit when cleaning it as this may cause short circuit Never use hot water above 40 C benzine gasoline acid thinner or a brush because they will damage the plastic surface and the coating Removing the Suction Grille Arm When the suction grille is fully opened with both hands push the ri...

Страница 21: ...sconnect the power plug 1 2 3 REGULAR INSPECTION PLEASE CHECK THE FOLLOWING POINTS EVERY EITHER HALF YEARLY OR YEARLY CONTACT YOUR SALES AGENT SHOULD YOU NEED ANY HELP Is the plug of power line firmly plugged into the socket Please ensure no loose contact between them Is the earth line disconnected or broken Is the mounting frame seriously affected by rust and is the outdoor unit tilted or unstabl...

Страница 22: ...flowing noise of refrigerant in the refrigerating cycle 2 Slight rubbing noise from the fan casing which is cooled and then gradually warmed as operation stops The odor will possibly be emitted from the room air conditioner because the various odor emitted by smoke foodstuffs cosmetics and so on sticks to it So please clean the air filter and the evaporator regularly to reduce the odor Please cont...

Страница 23: ...2 16 55 570 428 700 243 53 236 210 10 482 517 135 75 77 P Air suction grill Top air suction grill Mounting plate Wireless remote controller Cabinet Front cover VIEWED FROM BACK PIPE LEAD OUT Discharge grill Vertical air deflector Horizontal air deflector Hole on the wall for ø65 mm pipe Line cord Connecting cable Narrow pipe ø6 35 Wide pipe ø9 52 Drain cap connection part When piping is drawn hori...

Страница 24: ...C 167 F TEMPERATURE C F INDICATION 16 INDICATION 24 INDICATION 32 MODEL RAS 25CNH2 THERMOSTAT MODEL IC ON 17 6 63 7 OFF 16 6 61 8 ON 25 6 78 1 OFF 24 6 76 3 ON 33 6 92 5 OFF 32 6 90 7 M RESISTANCE VALUE MODEL RAS 25CNH2 RAC 25CNH2 RATED VOLTAGE DC0 35V DC230V OUTPUT 20W 20W RED YELLOW BLUE 0 30V 5V U V W WHITE YELLOW RED ...

Страница 25: ...ecifications CONNECTION 20 C 68 F 75 C 167 F RESISTANCE VALUE ORANGE RED WHITE CAUTION When the refrigerating cycle has been operated for a long time with the capillary tubes clogged or crushed or with too little refrigerant check the color of the refrigerating machine oil inside the compressor If the color has been changed conspicuously replace the compressor 2M 3 21 2M 3 90 U V W WHITE YELLOW RE...

Страница 26: ...D901 C B 35V E C803 R802 C802 IC401 64 R404 D403 R405 CN4 4 1 5 48 IC1 33 BLACK R403 R406 49 1 1 1 C940 I G 9 IF HIC OSC1 R205 C201 32 CN7 1 16 17 REG2 O C805 C801 L901 Q903 L102 ZD101 REG1 C109 ORZK23355A C105 CN10 5 1 C901 1 C103 D902 6 CN2 5V ZD201 1 ZD202 C933 R904 R905 CN6 C401 1 1 4 3 CN8 4 1 D401 CN1 X2 X1 ID R702 R703 Y BZ1 12V HA A B C D E F G ...

Страница 27: ... D E F G R510 C510 C511 3 15A FUSE POWER RELAY VS2 C001 R503 R502 R502 JW1 CN3 3 D STACK C505 R505 RCP RELAY RED YEL CN10 CT1 WHT VS3 BLK VS1 GRN C503 NF1 R504 NF2 RED C508 GRN C507 C506 C502 C512 1 7 1 R511 BLU COIL ORZK23354A SA 15A FUSE ...

Страница 28: ...9 Q908 Q910 R926 R909 R927 C920 ZD901 PQ7 PQ6 PQ5 WH4 BLACK WH13 BROWN C403 RED W YEL V C406 R406 R106 R104 R105 D405 D406 C402 R409 R102 5 8 4 1 PQ4 5 8 4 1 PQ3 5 8 4 1 PQ2 R405 D403 D404 C405 C404 WHT U R408 WHITE GLAY WH1 WH6 C504 R101 R404 BROWN WH13 R534 R533 R531 R532 R407 D401 D402 SW T C201 C231 D202 D203 R208 R224 C233 D215 R210 R209 PQ8 1 2 4 3 3 4 2 1 5 1 7 12 L701 C712 RED WH9 GREEN GR...

Страница 29: ...V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 12V 12V 12V 12V 12V 5V FAN HIC VREF AVSS AVDD VDD VB F2 VA F1 VC F0 F3 A B C A B C RES 60 el Xin Xin1 Ncom HU HV HW S3 IP CNTR CNVSS VSS CHOP IP POR M34225M2 M50927 29 R101 180K 0 5 1 2 A ...

Страница 30: ...SYMBOL MOUTING FORM INSERT BY HAND CHIP C H R101 1 0 5 1 4W C SYMBOL POWER TOLE RANCE Ω RETER VALUE RESISTOR R102 10K 2 1 16W C R103 1 2K 2 1 16W C R104 1 0 5 1 4W C R201 5 1K 5 1 10W C R204 5 1K 5 1 16W C R208 5 1K 5 1 10W C R210 12K 5 1 10W C R211 12K 5 1 10W C R303 10K 5 1 16W C R307 1K 5 1 16W C FORM R202 10K 5 1 10W C R203 2 7K 5 1 16W C R205 1M 5 1 16W C R206 10K 5 1 10W C R302 1K 5 1 16W C ...

Страница 31: ...ehumidifying Indoor micro computer AX 7J01 Outdoor micro computer AX 8J01 LCD wireless Room temperature thermistor Wireless receive circuit DC current signal Rotor magnetic pole position detection circuit Peak current cut off circuit Overload control circuit Voltage amplification circuit Over heat thermistor Defrost thermistor Outdoor temperature thermistor Indoor Outdoor interface circuit Power c...

Страница 32: ... computer Fig 1 2 shows the waveforms in each circuit when power is ON and OFF When the power is supplied the voltages on the 35V and 5V DC lines rise and when the 35V DC line becomes approx 24V ZD201 turns on and the voltage at the base of Q201 rises to turn Q201 on Since the collector of Q201 goes Lo at this time Q202 turns on and the reset input of the micro computer goes Hi The 5V DC line has ...

Страница 33: ...Micro computer When the buzzer sounds an approx 3 9kHz square signal is output from buzzer output pin q of the micro computer After the amplitude of this signal has been set to 12Vp p by a transistor it is applied to the buzzer The piezoelectric element in the buzzer oscillates to generate the buzzer s sound Fig 3 1 Buzzer Circuit Sound wave Metal diaphragm V Pizoelectric element V Fig 3 2 Buzzer ...

Страница 34: ...utput from pins k A of the micro computer Micro computer pins Step width Horizontal air deflectors 10ms 1 2 3 4 5 6 7 8 Horizontal air deflectors 51 50 49 48 Fig 4 2 Micro computer Output Signals As the micro computer s outputs change as shown in Fig 4 2 the core of the auto sweep motor is excited to turn the rotor Table 4 1 shows the rotation angle of horizontal air deflectors Rotation angle per ...

Страница 35: ...erature input R308 A 5 4 3 2 1 0 0 10 10 Heat exchanger temperature C Fig 6 2 20 30 40 Voltage at V A 6 Heat exchanger temperature thermistor circuit The voltage at A depends on the room temperature as shown in Fig 5 2 The circuit detects the indoor heat exchanger temperature and controls the following 1 Preheating 2 Low temperature defrosting during cooling and dehumidifying operation 3 Detection...

Страница 36: ... operation Fig 7 1 8 DC Fan Motor Drive Circuit Fig 8 1 shows the indoor DC fan motor drive circuit Fig 8 1 The circuit produces the fan motor drive voltages 8 33V from 35V DC supplied from the outdoor unit and controls the fan motor speed Q903 is switched on and off according to the signal at fan PWM output pin J to control the voltage which is smoothed by D901 L901 and C901 to drive the fan moto...

Страница 37: ...between blue and red Characteristics Mode Fan Speed Connector blue red voltage V Rotation Speed min 1 SS 9 8 714 S 16 6 950 OVERLOAD 19 1 1 040 LO 19 1 1 040 HI 27 7 1 350 SUPER HI 27 7 1 350 S 16 0 930 LO 18 7 1 020 HI 20 9 1 100 SUPER HI 20 9 1 100 S 16 0 930 INDOOR FAN SPEED HEATING COOLING DEHUMIDIFYING ...

Страница 38: ...9 1 DC 35V supplied from the outdoor unit is controlled by switching of regulator 1 and is smoothed by D102 L102 and C102 to produce 12V Output voltage is divided by R102 and R103 and input to output dividing pin 5 to control switching so that output voltage is 12V Fig 9 2 Waveform at A Waveform at Out put Voltage B ...

Страница 39: ... DC power supply Reference In case of malfunction or defective connection Immediately after the compressor starts it may stop due to abnormally low speed active error etc The compressor may continue to operate normally but the power factor will decrease the operation current will increase and the overcurrent breaker of the household power board will probably activate In case of active module fault...

Страница 40: ...oothes averages the voltage rectified by the diode stacks A DC voltage is generated in the same way as in Fig 1 3 5 C507 C508 C512 C513 C506 NF COIL1 NF COIL2 C502 C503 C514 These absorb electrical noise generated during operation of compressor and also absorb external noise entering from power line to protect electronic parts 6 Surge absorber varistor 1 2 3 These absorbs external power surge 7 In...

Страница 41: ...utputs an approx 38 kHz high frequency signal via pin 11 and continues the output intermittently according to the request signal This high frequency signal is amplified by a transistor superimposed on the DC 36V line via C801 and L701 and supplied to the indoor unit To prevent erroneous reception the outdoor microcomputer is designed so that it cannot receive a signal while it is outputting a requ...

Страница 42: ...0V I F 0V 0V IF transmit output SDO IF receive input SDI MICRO COMPUTER 5V 5V 5V 12V 5V 5V 5V 5V 5V 5V 5V C805 R812 R813 C808 64 19 IF transmit output SDO IF receive input SDI MICRO COMPUTER AX 8J00 70 11 32 69 33 0V L701 C801 R802 Q802 R801 R813 0V 0V 0V 0V 0V 0V 0V C710 NF COIL3 C708 C709 Interface relay 36V Communications from indoor micro computer to outdoor micro computer Communications from ...

Страница 43: ...ndoor micro computer 4 95ms Transmit receive switching time 33ms 1 frame Outdoor micro computer AX 8J0I 11 Pin 0V 69 Pin 5V 0V 64 Pin 5V 0V 19 Pin 5V 0V 36V DC line 36V Fig 2 2 Voltages Waveforms of indoor Outdoor Micro computers Outdoor to Indoor Communications Fig 2 3 Voltages Waveforms of indoor Outdoor Micro computers Indoor to Outdoor Communications ...

Страница 44: ... 100ms 33 3ms x 8 4 95ms 371 35ms Outdoor message Indoor message Example When the outdoor message is all 0s and indoor message is all 1s 37 V 36 V 35 V When reset approx 10ms Transmit receive switching time 4 95ms Character No 0 33 3ms 1 33 3ms 2 33 3ms 3 33 3ms Character No 0 33 3ms 1 33 3ms 2 33 3ms 3 33 3ms Bit No 0 Bit No 0 0 7 0 7 0 7 0 7 7 0 7 0 7 7 Leader 100ms When reset approx 10ms Leader...

Страница 45: ...ation Multi bit Contents 0 1 2 3 1 Outdoor message 7 1 0 6 1 0 5 1 0 4 1 0 3 1 0 2 0 1 1 0 0 1 0 7 1 0 6 1 0 5 1 0 4 1 0 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 1 0 3 1 0 2 1 0 1 1 0 0 1 0 Character No Bit No Data 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0 OVL up Compressor command speed 0 LSB Compressor ON Prohibit the compressor Reversing valve 2 way valve Fan 2 MSB Fan 1 Fan 0 LSB Capaci...

Страница 46: ...called the upper arm and the three transistors on the negative d side the lower arm W U V W W V V U U A DC Compressor motor U coil V coil W coil Power module 6D115S C501 R24 0 35mH Power relay R503 R502 Inrush current protection relay C001 R504 Noise filter coil A B Terminal board FUSE 15A Fig 3 1 Power module circuit U is ON V is ON ...

Страница 47: ...to ON OFF by 3 2kHz chopper signal Rotation speed of the compress is proportional to duty ratio ON time ON time OFF time of this chopper signal Time T in Fig 3 2 shows the switching period and relation with rotation speed N of the compressor is shown by formula below Fig 3 2 Switching order of power module N 60 2 X 1 T Fig 3 3 shows voltage waveform at each point shown in Figs 3 1 and 3 4 Fig 3 3 ...

Страница 48: ... may indicate as shown below Simplified check of power module Lighting mode when operated with compressor leads disconnected 1 Disconnect connector of 3 pole WHT YEL RED lead wire connecting to compressor located at the lower part of electric parts box 2 Set to compressor operation state other than FAN mode and press Start stop switch of remote control 3 If normal operation continues for more than...

Страница 49: ...uit for P W B In the power circuit for P W B power voltage for microcomputer peripheral circuits and power module drive and as well as DV39V are produced by switching power circuit Switching power circuit performs voltage conversion effectively by switching transistor IC1 to convert DC300V voltage to high frequency of about 70kHz to 200kHz Transistor IC1 operates as follows 1 Shifting from OFF to ...

Страница 50: ...circuit for P W B seems to be faulty 1 Make sure that 5V and 12V on the control P W B upper arm U V and W and the lower arm power voltage are the specified values 2 When only the 5V output is low REG 1 regulator faulty 5V 0V shorted output is too high or REG 1 is abnormal 3 When 12V and 5V are abnormal The following defects can be considered 1 Fan operation power rush prevention relay shorting in ...

Страница 51: ...e on the terminal board By reversing valve control circuit you can switch reversing valve ON OFF according to instruction from indoor microcomputer and depending on operation condition Voltage at each point in each operation condition is approximately as shown below when measured by tester When collector voltage of Q701 is measured 3 1 56 5 I F 0V Fig 5 1 D701 CN2 Q701 DC voltmeter or tester Rever...

Страница 52: ...ng of R101 R104 and C101 to make triangular wave voltage at point B In HIC 3 phases of this triangular wave are synthesized to produce composite wave voltage at point C This composite wave becomes a triangular wave with period of 1 3 times compared with original triangular wave Voltages at points B and C are compared by comparator to make voltage at point D Voltage at point D is taken into microco...

Страница 53: ...current OA When pin e of the micro computer goes HI LO a photocoupler between PQ2 pins 1 and 2 turns on and current flows to terminal A R401 PQ2 R404 power module s Bu terminals Eu terminals D402 D401 terminal B and drives the upper arm transistors Fig 7 2 As described in the rotor magnetic pole position detecting circuit the upper arm drive circuit supplies current to the bases of the transistors...

Страница 54: ...s Eu terminals Bu terminals R404 PQ2 to cut off the upper arm transistors Fig 7 3 5 6 1 8 2 PQ2 7 b a 1 Bu Eu Power module U phase A 2 R401 R404 D401 D402 C401 R407 A Current at point Reverse bias current OA Fig 7 3 Waveform of Transistor Base Current Reverse Current at Point A R407 is used to charge C401 initally The operation is the same for V and W phases ...

Страница 55: ...y of the micro computer goes HI LO a photocoupler between PQ5 pins 1 and 2 turns on and current flows to terminal C R411 PQ5 R414 power module s BU terminals Ew terminals D412 D411 terminal D and drives the lower arm transistors Fig 7 4 The signals which turn on or off according to the position detection signals are output from pins y ui of the micro computer in the same way as in the upper arm dr...

Страница 56: ... with set voltage value in microcomputer and controls overload when set value exceeds input voltage Voltage amplifies DC current level detected by the detection resistor and inputs this to microcomputer Internal or external overload is judged in microcomputer Produces reset voltage Modulates chopper signal to drive signal and stops according to presence ab sence of lp signal or reset signal 48 29 ...

Страница 57: ...8 B C 71 POR I p 8J HIC Fig 8 3 Peak Current Cut off Circuit and Waveforms at Each Section The Ip cut off circuit detects an instantaneous high level current and stops the inverter to protect components including the power module If a current exceeding 15A flows as shown in the diagram the voltage at point A detected by the detecation resistor is input to the positive e terminal of COM 2 and when ...

Страница 58: ...tion speed internal judgement value Judgement OVL with respect to externally set value A D converter A D converter Judgement OVL according to the rotation speed Selects data according to the rotation speed and DC voltage OVL start current data Rotation speed data Motor control process AX 8J01 micro computer Detection resistor Fig 8 4 Overload Control System Configuration Fig 8 5 DC current Rotatio...

Страница 59: ...his the micro computer converts it to a digital signal and compares it with the internal data to judge whether or not overload control is required During overload control The filter consisting of R2 and C515 removes high harmonic components from the voltage generated from the DC current flowing to the detection resistor and supplies it to OP1 pin 5 OP1 forms a non inverting voltage amp circuit tog...

Страница 60: ...t varies when the supply voltage varies This control method copes with variations in the voltages as follows 1 Turns on the power module s U and V transistors so the current flows to the motor windings as shown in Fig8 9 2 Varies the turn ON time of the W transistor according to the DC voltage level and the start is controlled so the start current is approx 10A as shown in Fig 8 10 Fig 8 8 DC curr...

Страница 61: ... PQ2 PQ4 to which voltage is supplied with high frequencies to let current flow to them to transfer the upper arm drive signal When the reset voltage is Lo the current operating PQ5 P07 is stopped and the lower arm transistor drive signal is turned off The peak current cut off Ip cut off signal fixes the voltage at upper and lower arm drive circuits to Lo via D301 and D304 and turns off the drive ...

Страница 62: ...ndition command to the indoor microcomputer via the SDO pin IF transfer output of the interface The microcomputer always reads the outdoor temperature via a thermistor microcomputer pin vvoltage and transfers it to the indoor unit thus controlling the compressor rotation speed according to the value set at the EEPROM in the indoor unit and switching the operation status outdoor fan on off etc in t...

Страница 63: ...in k of microcomputer is set to Hi By ZD501 reset voltage maintains input of pin k at Lo until Vdd of microcomputer rises to 5V to obtain operable status When power is shut off and potential of 12V is lowered ZD501 is shifted to OFF However since reset voltage is feed back to Q301 by R312 maintains ON state until 12V line voltage drops to about 7 6V This prevents reset voltage from chattering due ...

Страница 64: ...3 4 minutes until it is defrosted If the air conditioner operates in cooling mode when it is cold the evaporator may get frosted Normal sound when refrigerant flows in pipe Compressor may not operate when room temperature is 10 C or less It also stops when the humidity is preset humidity or less It occurs during defrost ing Wait for 5 10 minutes until the condenser is defrosted At the beginning of...

Страница 65: ...y before stopping operation At this point fan speed is automatic This is because Nice temperature reservation function is operating This function starts operation earlier so the preset temperature is reached at the preset time Operation may start maximum 60 minutes before the preset time It does not work It works only during cooling and heating This is because Nice temperature reservation function...

Страница 66: ...ling capability so noise becomes slightly louder This does not indicate a fault Noise from the outdoor unit occasionally changes The compressor rotation speed changes according to the difference between the thermostst set temperature and room temperature This does not indicate a fault There is a difference between the set temperature and room temperature There may be a difference between the set t...

Страница 67: ...vel 2 Also note that it takes about 10 minutes until the voltage fall after the power switch is turned off DANGER Across a b 0V line Across a ground Across b 0V line ground approx 260 380V approx 155 170V approx 155 170V When using an oscilloscope never ground it Don t forget that high voltages as noted above may apply to the oscilloscope DANGER Always keep your hands and metallic things away from...

Страница 68: ...r turning power switch off wait for at least 10 minutes and then remove the electrical unit cover Fit a 30 75 W soldering iron to the receptacles of white and black lead wires on the smoothing capacitor for at least 15 seconds to discharge the voltage at the smoothing capacitor F Cabel ø2 single lead Plug Soldering iron of 30 75W Do not use a soldering iron with built in transformer the fuse built...

Страница 69: ... blinks Check the outdoor electrical parts Timer lamp Dehumidifying lamp No No Yes Yes No Is approx 3V DC being generated Is the polarity correct Remove the outdoor unit cover and electrical parts cover and check self diagnosis lamp LD301 Does LD301 blink one time Repeats 0 25 second on and 2 second off Check to see whether the F cable is connected incorrectly or disconnected Set the service switc...

Страница 70: ...links 10 times Half voltage error If the 15A fuse has blown be aware that other parts may alsobe defective mainly varister 2 diode stack smoothing capacitors power module etc Is the switching power circuit OK Has the 3A fuse blown See the self diagnosis lamp lighting mode Are the cords etc of terminal board reactor diodes smoothing capacitors etc connected Replace any defective parts Check to see ...

Страница 71: ...C being output across R213 Is 12V DC being supplied across the control side coil terminal of interface relay Is a voltage at least 10V being generated between the contact terminals of interface relay D207 and C210 may be defective There is a defective section between the 12V output of switching power supply on the main P W B and interface relay also check for contact with solder etc Replace the in...

Страница 72: ...after serving Is the continuty of thermistor normal Is the thermistor circuit normal No No Yes No No Replace the power module Replace any defective parts Connect the thermistor Replace the thermistor Replace parts in the thermistor circuit Check continuity of pattern and lead wires according to the P W B and schematic diagrams Check continuity of pattern and lead wires according to the P W B and s...

Страница 73: ...tor circuit normal Are R503 R541 R542 R549 and peripheral circuits normal Replace the main P W B Is the power module normal Is the drive circuit normal Replace parts in the thermistor circuit Replace any defective parts Replace the power module Replace any defective parts No No No Check continuity of new parts Check continuity of pattern and lead wires according to the P W B and schematic diagrams...

Страница 74: ...normal Are R503 and peripheral circuits normal Is the microcomputer IP input signal normal Normally pin Z is approx 5V Is the reset circuit normal Normally pin k is approx 5V Yes Yes No No No No Replace the power module Replace any defective parts Replace any defective parts Replace any defective parts Operate the unit again Is it normal Perform final operation check Make sure again that connector...

Страница 75: ...faulty 15 times blinking Removing the ACT module 1 Disconnect the connector and remove the 8 receptacles Caution The resin sleeve can be removed by pulling it up but the PVC sleeve or receptacle without sleeve cannot be removed this way remove it by the procedure on the right It cannot be removed unless the positive lock is released Do not pull or lift it forcibly this could break PWB or terminals...

Страница 76: ... 79 Be sure to replace the rainproof cover after checking rainwater would enter if it is not installed Reinproof cover transparent ...

Страница 77: ... 80 PARTS LIST AND DIAGRAM MODEL RAS 5CNH2 11 2 18 8 20 19 12 63 1 4 60 3 7 14 15 6 5 16 13 88 61 17 9 62 10 ...

Страница 78: ...AS 25CNH2 011 1 FRONT COVER ASS Y 12 PMRAS 25CNH2 012 1 MOUNTING PLATE 13 PMRAS 25CNH2 013 1 REMOTE CONTROL 14 PMRAS 25CNH2 014 3 EVAPORATOR 15 PMRAS 25CNH2 015 3 UNION 2 16 PMRAS 5100C 017 1 UNION 3 17 PMRAS 25CNH2 016 1 STEP MOTOR 60 PMRAS 25CNH2 017 1 REMOTE CONTROL HOLDER 61 PMRAS 25CNH2 018 1 FILTER 62 PMRAS 25CNH2 019 2 CAP 63 PMRAS 25CNH2 020 1 PIPE SUPPORT 18 PMRAS 07C1 006 3 TERMINAL BOAR...

Страница 79: ... 82 MODEL RAC 5CNH2 55 22 59 16 26 24 23 20 25 21 19 13 52 58 53 56 57 2 3 51 15 14 18 4 5 9 6 8 54 17 7 11 10 12 ...

Страница 80: ...7 PMRAC 07CHV1 904 1 2S VALVE 18 PMRAC 05CV 914 1 3S VALVE 51 PMRAC 07CHV1 920 1 REVERSING VALVE 52 PMRAC 07CHV1 921 1 COIL REVERSING VALVE 53 PMRAC 07CHV1 922 1 CHECK VALVE 54 PMRAC 25CNH2 906 1 BASE 55 PMRAC 25CNH2 907 1 SILENT COVER 56 PMRAC 25CNH2 908 1 THERMISTOR OH 57 PMRAC 25CNH2 909 1 THERMISTOR OH SUPPORT 58 PMRAC 25CNH2 910 1 THERMISTOR 59 PMRAC 25CNH2 911 1 THERMISTOR SUPPORT 19 PMRAC 2...

Страница 81: ...RAS 25CNH2 RAC 25CNH2 PM NO 0081E Printed in Malaysia HITACHI ...

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