background image

– 23 –

RAC-E10H2

MODEL

1 

2 

   2K 

   2K 

5% 

 

 

 

1/4 

5%

1/4 

 

 

R401    100 

  100 

A 

5% 1/4 

M 

M 

   2K 

   2K 

R403
R404 

 

 

 

 

 

 

 

5%

5% 1/4 

1/4 

   2K 

   2K 

   2K 

   2K 

M 

   100 

C401 

 

 

 

   100 

   100  25

 

 

 

 

 

 

 

 

 

 

 

 

R25 

 100K 

 100K  5% 1/4  A  M 

M 

H 

D22 

JW008 

124 

M 

H 

TD62064APG 

IC6 

GRAY(S2) 

RN2Z 

CN1 
PK6P(WHT)

RL4 

CAPACITOR 

CAPACITOR 

(W) 

RELATING 

VALUE(Ω) LIMIT

POWER 

SYMBOL 

SYMBOL 

RELATING 

VALUE(Ω) LIMIT 

POWER 

(W) 

VALUE(μF) 

(V) 

VOLT

SYMBOL 

RELATING 

SYMBOL 

RELATING 

VALUE(μF) 

VOLT

(V) 

SYMBOL 

 

MODEL 

RESISTER 

M0UNTING 

BOARD

PART NO. 

M0UNTING 

BOARD

PART NO. 

RESISTER 

M0UNTING 

BOARD

PART NO. 

TYPE 

TYPE 

M0UNTING 

BOARD

PART NO. 

M0UNTING 

BOARD

PART NO. 

SYMBOL 

SYMBOL

M0UNTING 

BOARD 

PART NO. 

SYMBOL 

SYMBOL

M0UNTING 

BOARD 

PART NO. 

SYMBOL 

SYMBOL

M0UNTING 

BOARD 

PART NO. 

SYMBOL 

M0UNTING 

BOARD 

PART NO. 

NSE/UNUSE

SYMBOL 

MODEL

M0UNTING 

BOARD 

PART NO. 

SYMBOL 

RATING 

M0UNTING 

BOARD 

PART NO. 

SYMBOL 

RATING

M0UNTING 

BOARD 

PART NO. 

SYMBOL 

MODEL 

M0UNTING 

BOARD 

PART NO. 

SYMBOL 

MODEL 

M0UNTING 

BOARD 

PART NO. 

SYMBOL 

 

RATING

M0UNTING 

BOARD 

PART NO. 

SYMBOL 

M0UNTING 

BOARD 

PART NO. 

MODEL/DROWING 

COMMENT 

COMMENT 

COMMENT 

COMMENT 

COMMENT 

COMMENT 

COMEMNT 

COMMENT 

COMMENT 

COMMENT 

COMMENT 

COMMENT 

COMMENT 

COMMENT 

COMMENT 

COMMENT 

TRANSISTORS 

PHOTO COUPLERS 

COIL・INDUCTORS 

SURGE ABSORBERS 

SWITCH 

LED 

IC         

ZENER DIODE 

JUMPER 

RELAY 

DIODES 

TAB TERMINAL 

 8

 6

11 

13

 9

 4

 4

RL5 

RL4 

4 

4 

3 

3 

1 

1 

2 

2 

JW004 

R703 

JW005 

D702 

WAY 

VALVE 

COOLING   and  HEATING 
EXCHANGER 

RELAY 

WAY  VALVE 

RELAY 

WAY 

VALVE 

COOLING   and  HEATING

EXCHANGER  OF

4 

4 

4 

CN2 
VH2P 

RELAY COIL(RL5) 

Q401 

Q402 

Q403 

Q404 

C008 

R41 

C41 

+ 

R002 

3A FUSE 

VS2 

C013 

C012 

B 

A 

C011 

R007 

 CT1 

 CT1 

C003 

C002 

L001 

RL1 

RL2 

0V 

POWER 

SA1 

VS3 

VS1 

L101 

B 

A 

(3−E) 

(2−E) 

L002 

JW001 

L003 

GREEN1 

GREEN3 

0V 

C010

0V 

D001 

+ 

R006

R005 

C009 

0V 

+ 

8 

8 

8 

6 

6 

6 

1 

1 

1 

3 

2 

2 

2  3 

3 

3 

10 

10 

7 

7 

+ 

12V 

3 

4 

+ 

1 

2 

5V 

+15V 

C−35V 

15−0V 

D 

(3−F) 

C05 

D22 

D02 

D03 

R07 

D04 

SW−TRANS 

STR−L472 

R20 

IC1 

R25 

C23 

C21 

D30 

C10 

R24 

R23 

R03 

D24 

REG1 

R01 

D21 

D20 

C04 

R02 

(7) 

(12) 

(1) 

(20) 

(22) 

(17) 

(18) 

(13) 

(19) 

(16) 

(14) (15) 

(21) 

0V 

R46 

R45 

C31 

D31 

C32 

D32 

B−0V 

PQ2 

3 

R10 

5V 

5V 

R34 

PQ1 

2 

2 

1 

Q106 

C11 

R13 

2 

3 

1 

1 

PQ2 

R11 

REG2 

R05 

R15 

TERMINAL 
BOARD 

BLACK 

WHITE 

ORANGE(S2) 

15A FUSE 

D33 

JW013 

RELAY

C023

R008 

+ 

C022 

+ 

C021 

YELLOW

BLUE 

DB2 

L2 

L1 

L1 

L1

TAB05 

TAB11 

L1 

TAB11 

L2 

12V 

C804 

C803 

L802 

(2−B) 

B 

(2−B) 

A 

C 

D 

0V 

L801 

0V 

RL3 

R35 

C 

(3−D) 

D 

(3−D) 

6,7 

6,7 

10 

5 

2 

BROWN 

RED 

TERMINAL 
BOARD 

L803

+ 

C820 

D801 

    45 

 AC 
230 

F  H 

C023

※ 

※ 

 DC 
1KV 

C  R 

C100

JW012 

JW011 

RCR 

RCR 

KMX 

18×35.5 

IEC 

IEC 

IEC 

APPROVAL 

APPROVAL 

APPROVAL
IEC 
APPROVAL
IEC 
APPROVAL

IEC 
APPROVAL
IEC 
APPROVAL

IEC 
APPROVAL
IEC 
APPROVAL
IEC 
APPROVAL

IEC 
APPROVAL
IEC 
APPROVAL

ZD901 

MTZJT−22B 

A  M  101 

C806

C807 

C808 

C810 

C809

R801 

R802 

R803 

C801 

C802 

Q801 

0V 

 5V 

C219 

R283 

0V 

+ 

0V 

12V 

12V 

12V 

+5V 

12V 

R407 

R408 

R409 

R410 

POWER RELAY COIL 

(RL1) 

(RL2) 

ICP RELAY COIL 

ICP RELAY 

ICP RELAY 

(3−G) 

R 

R004

 

R003 

C110 

W 

C217 

R245 

+ 

(3−G) 

Q 

C100 

MAIN P.W.B.

COM 

VB 

VCC 

VCC 

COM 

COM 

VS 

HO 

HO 

VB 

HO 

VB 

VS 

12 

12 

6 

6 

VCC 

FO

25 

25 

VCC 

GND 

23

23 

 

 

 

 

 

24 

24 

24 

24  7 

7 

18

18

22

22

21

21

26

26

Uout 

VS 

Wout 

35

31

20

34 

Vout 

IPM 

CIN 

H 

H 

H 

UN

VN

WN

CFO

VNO 

JW010 

R001

R906

R905

 0V 

R901 

D901 

R903 

D903 

C921 

C922 

C923 

R902 

D902 

C916 

C910 

R615

R616

R617

C900 

C901 

C906 

C902 

C903 

C904 

C905 

 0V 

 0V 

 0V 

 0V 

RESET 

Id 

φ60 

RXD 

TXD 

0V 

NMI 

 15V 

IP 

G 

(6−D) 

R278 

0V 

SW1 

  5V 

 12V 

0V 

R307 

0V 

5V 

C917 

ZD901 

C920 

SURVICE 

SWITCH 

NORMAL 

COOLING 

4 

7 

5 
6 

FM 

3 

1 
2 

1AFUSE 

R107 

C102 

5V 

R102 

R101 

R106 

R106 

Q101 

R104 

R103 

R103 

R105 

C101 

+15V 

Q 

R 

(5−A) 

(7−B) 

15−0V 

CN24 
XH−7P 
(WHT) 

2 

2 

2 

XA−2P 

CN10 

1 

XA−2P 

R35:1.433kΩ±2% 

1 

B0/70:3400K±2% 

XA−2P 

B0/25:3400±2%

R110:1.28kΩ±5% 

B100/110:
  4400K±150K 

CN9 

1 

CN8 

5V 

R0:5.9kΩ±5% 

TH1 

OH THERMISTOR 

DEF THERMISTER 

OUTDOOR 
THERMISTER 

(WHT) 

(BLK) 

(RED) 

1 

2 

4 

CN17 
CT−4P 

3 

FOR E 

2 

PROM 

(WHT) 

7 

5 

8 

11 

11 

2 

6 

9 

CN18 
CT−10P 

10 

4 

1 

3 

12 

12 
13 

13 

TEST PIN

LD301 

LD302 

R300

LD303 

5V 

G 

(9−J) 

45  44 

18 

17 

20 

19 

47  46 

48 

43 

35  34 

56 

57 

42 

U 

+ 

54 

55 

53 

61 

63 

59 

60 

41 40 

27 

26 

37  36 

39  38 

62 

32 

64 

29 

28 

31 

30 

RESET 

V 

d 

W 

− 

V 

− 

IP CUT 

W 

+ 

58 

V 

+ 

23 

21 

33 

25 

51 

52 

49 

50 

8 

10 

6  7 

12  13 

9 

11 

24 

22 

3 

5 

1  2 

16 

14  15 

4 

SDA(EEPROM) 

SCL(EEPROM) 

AV 

CC 

X2 

X1 

V 

CL 

OSC2 

OSC1 

V 

CC 

A 

B 

C 

U 

− 

NMI 

OH 

I 

S 

I 

d 

DEF 

POWER 

15/20A 

IP RES 

ACT ON/OFF 

SDO 

TXD 

RXD 

FM−60 

° 

el 

° 

° 

V 

SS 

SDI 

ACT PWM 

φ60 

DEBUG2・CHNG 

TEST 

P85 

FAN 

CURRENT 

UNUSE(A/D) 

MAIN POWER ON/OFF 

STANDBY 

OUTPUT 

I/F  RELAY 

(NORMAL)

OPERATION RELAY

RELAY 

FAN PWM 

4  WAY  VALVE 

4  WAY  VALVE)

(CONVENTIONAL 

SELF 

DIAGNOSIS2 

DIAGNOSIS1 

SELF 

OUTDOOR
TEMP 

AC  FAN(S) 

AC  FAN(L) 

VALVE1 

VALVE2 

VALVE3 

VALVE4 

UNUSE 

MODE/ 

SELF 

 C/ 

SELF 

MAICON(M1) 

AX-8V10

FORCED COOLING 

ZERO CROSS 

DEBUG1・BEFORE COMPENSATIONφ60 

DEBUG3・RESERVE 

4 WAY VALVE ENERGIZATION 

HIC 

C606 

R241 

R220 

C605 

C210

C607 

0V 

R221 

R203 

R222 

C206

R276 

R234 

R238 

R239 

C209 

R242 

R204 

0V 

C222 

C218 

R252

0V

5V 

R226 

C207 

C204 

0V 

Q202

0V 

R250 

R281 

R200

5V 

0V

R201 

R202 

Q201 

R306 

0V 

C304 

0V 

R305 

R304 

C303 

C302 

R293 

R295 

R298 

R297 

R294 

R296 

R301 

0V 

R279

R302 

R280 

R197

R198

R303 

R290 

R267

D202

C502 

C503 

C505 

C504 

C501 

C506 

R207
R208

R209

R206 

C203 

R236 

R235 

R240 

R237 

C205

R233 

R199

R224

R219

R205

7 

15 

1 

4 

12 

12V 

10 

14 

9 

16 

6 

5 

8 

IC2

0V 

11 

2 

13 

3 

IC4 

6 

7 

− 

1 

3 

+ 

8 

2 

C224 

0V 

C223 

5V 

R244 

D204 

0V 

4 

R249 

R246 

R247 

R243 

12V 

5 

+ 

R248 

C208 

0V 

− 

0V 

0V 

0V 

C228 

C227 

0V 

0V 

7 

2 

14 

1 

13 

4 

R502 

R503 

R511 

R512 

R501 

R510 

 0V 

 0V 

 0V 

 0V 

 0V 

 0V 

R509 

C202 

D500 

R506 

R504 

R505 

5V 

D501 

R256 

+5V 

0V 

0V 

C213 

R255 

Q205 

R254

R257 

C214 

6 

0V 

5V 

R261 

C216 

R260 

R259 

R262 

R263 

4 

IC5(1/2)

D206 

R258 

+5V 

R601 

R602 

R603 

+ 
− 

+ 
− 

+12V 

+ 
− 

1 

12 

3 

2 

13 

7 

6 

5 

4 

11 

10 

C608

R608 

R609 

R610 

R611 

C604 

C603 

C602 

C601 

R604

R605 

R606 

R607 

+ 
− 

14 

9 

8 

IC3 

R612

R613

D208 

C225 

R287

0V 

C226 

1 

0V 

12V 

0V 

R284 

R292 

0V 

C215 

8 

 5V 

R286 

R288

R289 

0V 

0V 

0V 

R268 Q204 

5V 

0V 

12V 

5V 

C200

C201

26 

23 

25 

25 
24 

28 

27 

46 

47 

45 

44 

31 
30 

20 
21 
22 

32 
33 
34 

35 

16 
15 

14 

13 

19

36

40

37

38

39

1  2  3 

12

4 

5 

29 

 

 

 

 

 

 

43 

42  4

  4

  4

  4

  4

  4

  41 

6 

7 

8 

9 

11

10

A:Axialinsertion
R:Radialinsertion
H:Handinsertion
C:Chip surface mounting
S:In addition surface mounting

Mounting form

COMPRESOR 
MORTOR 

WHITE

YELLOW 

RED 

H:HIC

PCB SET
M:M A I N   P . W . B .

R404 

R403 

PQ401 

PQ402 

PQ403 

PQ404 

4 

3 

1 

2 

14

C401 

+ 

8 

11 

1 

6 

13 

3 

R401 

6 

IC6 

B−0V 

5 

3 

4 

2 
1 

B−12V 

ELCTRIC 
EXPANSION 
VALUE 

CN15 
XA−6P 
(WHT) 

 1k 

1/4 

1%

R001 

3%

11 

47 

0.025 

 5 

H 

41 

26 

17 

39 

31 

5%

M 
M 

M 

M 

M 

M 

M 

M 

1/4  A 

5% 

 

 

 

1/4 

 47 

1/4 

 

 

2.2k 

2%

M 

7.5K

5% 1/6 

2%

1/6 

 390

R107 

2%

21 

M 

16 
48 

43 

M 

M 

M 

R105 

R103 

 4.7K 

 4.7K 

1/6 

38 

25 

37 

1/6 

 2 

A 

1/6 

R102     3K 

   3K 

A 

A 

5%

18 

0.5%
0.5%

360K

1/2 

R101 

360K

M 

A 

1/2 

M 

R004 

49 
49 

A  M 

R003 

 0.27 

 0.27 

5% 

 

 

 

A 

A 

1/6 

1/6 

M 

R104 

20 

5%

A 

  10K 

  10K 

2%

  3.6K 

  3.6K 

1/4 

42 

R106 

H 

M 

A 

R01 

R03 

A 

R07 

R04 

R02 

1/4 

R007 

5% 

 

1/6 

5%

 

 

  100 

  100 

1/2 

R006 

1.96K 

 240K 

 240K 

R008 

5% 

 

 

 

1/2 

1/2 

1/6 

R005 

   1K 

   1K 

1.5M

 33 

A 

5%

1/4 

R15 

R05 

1% 1/4 

A 

R10 

A 

5%

A 

680 

5%

0.68  5

  5% 

R 

1/4  A 

390 

R13 

1  R 

R35 

6.8k  5

  5% 

M 

M 
M 

M 

M 

45 

29 

10 

M 

34 
35 

R23 

1% 

 

 

 

1/6 

1/6 

CEMENT 

10 

A 
H 

1%

R002 

R24 

2.2 

5% 

 

 

 

1/6 

 

 

R245    10K 

  10K 

16 

M 

  453 

  453 

33 

1/6 

M  36 

R905 

 

 

 

 

1/6 

1/6 

 

 

 

 

  453 

  453 

  453 

  453 

1%

  100 

  100 

1%

 

 

1/6 

R906

 

 

A 

M 

R901

M 

1/6 

14 

5%

M 

R902

A 
A 

5%

5%

1/6 

R903

   20 

   20 

A 

14 

   20 

   20 

14 

1/6 

   20 

   20 

1/2 

360K

R615

1/2 

360K

1/2 

0.5%

R617

R616 

0.5% 

0.5% 

360K 

49 

49 

49 

A 

A 

A 

M 

M 
M 

   39 

   39 

A 

   39 

   39 

1/4 

A 

   3K 

   3K 

A 

5%
5%
5%

24 

24 

15 

M 
M 

1/6 

R803

1/4 

R802

R801

M 

M 

R307 

 

 

 

 

 

1/6 

 

 

 

 

13 

5%

 

 

R407 

 

5% 

M 

1/6  A 

M 

1/6  A 

12 

   2K  5%

R300

M  16 

R283

1/6  A 

5%

  10K 

  10K 

M  19 

1/6 

  100 

  100 

A 

R278 

 

 

 

  100 

  100 

  100 

  100 

% 

C910

C02 

50

   10 

D  R 
C  R 

50

 1500p 

R 

R 

50

C03 

C 

C01 

C05 

50

D 

C10 

R 

2k C 

C04 

  470p 

 470p 

R 

D 

R 

  0.01 

 0.01 

C803

  0.01 

250 

 AC 
250 

 AC 
250 

C805

R 

 AC 
250 

R 

 AC 

 0.01 

C  R 

 DC 

R 

 DC 
250 

R 
R 

C 

C 

C804

 0.47 

D 

   68 

C41 

H 

C31 

R 

C 

R 

450 

D 

C06 

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  0.1 

C 

50

25

C21 

C 

2k

C24 

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H 

  375 

C021 

 

 

 

  375 

  375 

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C 

F 

C001
C002
C003

  375 

420 

 

 


D 

C022

C009 

 

50  C 

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250 

250 

 AC 

C012

420 

250 

 0.01 
 0.01 

C 

250 

H 

 0.47 

D  R 

50

  0.15 

    68  50

C802

 0.022 

F 
F 

50

  0.15 

C 

R 

C801

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50

C806 

 

 

 

50

50

  0.15 

  0.15 

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C008

10

C011

R 

D  R 

C 

C010

 AC 

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88

72
72
58

72
72
67
83
58

54
54

61
62
72
72
87
61

M 

M 

M 

M 
M 

M 

M 
M 

M 

M 

M 

M 
M 

M 

M 
M 

M 

M 
M 

M 

M 
M 

M 
M 

M 

M 
M 

M 

LXZ 

25

  330 

C11 

C  R  M 

  0.1 

 100 

 0.1 

 

 

81

 0.01 

  470p 

64

67

78

78

77

64

63

74

76

72

M 

R 

C 

 0.01 

C809

C101
C102 

 

50 

M 

R 

   0.1 

 

 

67

C 

50 

 

 1200p

 

 

C903

C905

C904

 0.056

C906

R 

F 

M 

M 

C900

C901

69

65

69

M 

M  69

R 

50  F

  F

50

C902

 1200p

F  R 

 1200p

50

C217

    22  10 D  R  M  80

C219

    22  10 D  R  M  80

A 

JW010 

M 

   Unuse 

120 

125 

C913
C914
C915

    22 

    22 

    22  35 

35 
35  D 

D 

D  R 

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R  M 

M 

M 

KRE 

KRE 

KRE 

C917

50 

M 

 0.022 

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62 

C919

C922

C921

C923

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67 

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   0.1 

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M 

2SC1214CTZ 

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M 

Q101 

 

115 

2SC1815GR 

 

 

H 

TLP421 

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PQ1 

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112 

112 

L801 

H 

CT1 

BEZE 

BEZE 

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H 

L002 

L001 

A 

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L802 

A 

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H 

H  M 

M 

M 

M 

M 

M 

M 

M 

155 

154 

152 

155 

153 

153 

153 

151 

RRMH3884 
RRMH3884 

RRMF3787 

RRMF3484

H  M 

RRMF3797

R 

R 

R 
R 

RA−102M−C6−Y 

M 

M 

M 

149 

149 

149 

VS2 

VS1 

VS3 

M  147 

450NR−12D 

AS1 

143 

IC1 

H 

PQ05RD08 

H 

REG1 

STR−L472

TH1 

92
92

LD302

LD301

92

M 

R 

M 
M 

R 

LD303

R 

90

PS21564 

H 

IPM 

M 

140 

JW001 

   Unuse 

A  M 

RL3 

RL2 

RL5 

RL1 

H 

H 
H 

H 

M 

M 
M 

M 

137 

135 

137 

G4A 

SW1 

M 

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EVQPAE07K 

RL4Z 

1SS120 

1SS120 

D30 

D04 

D02 

A 
A 

DB2 

D2SB60 

H 

A 

D10XB60H 

H 

A 

A 

DB1 

H 

D21 

D03 

D24 

D001 

A 

D20 

M 

M 

M 

M 

M 

M 

M 

M 

M 

M 

107 

95

107 

107 

108 

105 

106 

106 

A 

AG01Z 

103 

D801 

 

A  M

  M 106 

M 
M 
M 

A 

A 

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1JU42 
1JU42 
1JU42 

D903

D902

D901

1GH46 

110 
110 
110 

M 

H 

157 

82 
82 
82 

R703

JW004 

A  M 

JW005 

A  M 

M  107 

A 

D702

1GH46 

RL4 

A  M 

JW008 

TLP421 

H  M  112 

PQ401 

112 

PQ402 

H  M 

TLP421 

112 

PQ403 

H  M 

TLP421 

112 

PQ404 

H  M 

TLP421 

1/6  A  M 

R408 

 

5% 

  390 

 

 

1/6  A  M 

R409 

 

5% 

  390 

 

 

1/6  A  M 

R410 

 

5% 

  390 

 

 

  390 

 

 

Q401 

 

 

 

Q402 

 

 

 

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Q404 

 

 

 

AL01Z 

3.3k

118 
118 
118 
118 

137 

104 

84

72

30 
23 
23 

18 
18 
18 
18 

27 

50 

C920

JW011 
JW012 

   Unuse 

   Unuse 

A  M 

M 

A 

1W 

R11 

 1k 

1% 1/4  A  M 

R34 

R41 

 1M 

5% 

 

 

 

A  M

  M

1/4 

 

 

R45 

220k  5

  5% 

A  M 

2 

R46 

220k  5

  5%  2  A  M 

R47 

470k  5

  5% 

A  M 

1/6 

R20 

2.2k  5

  5%  1/4  A  M 

  560 

C07 

  330 

25 D  R  M 

  330 

  

50

  

  

C23 

  470 

10 D  R  M 

DC 

1KV 

C32 

 0.01 

C  R  M 

50

 0.01 

C013

 0.01 

 AC 
250 

C  R  M 

 AC 
250 

C810

 0.01 

 AC 
250 

C  R  M 

C820

  100 

D  R  M 

  

25

  

  

1GH46 
1GH46 

D31 

EG01V1 

A  M 

D32 

AG01Z 

A  M 

1SS120 

 

 

Q106

DTC114YSA 

R  M 

450NR−12D 
450NR−12D 

REG2 

H 

SE012 

L003 

A  M 

J/W 
2mH 15A

L101 

L803 
L804 

31 

11 

9 

46 
46 
28 

78

67

60

66

72

M 

 0.01 

81

C110

72
84

DB3 

D10XB60H 

H  M  95

99

98
99

D33 

JUMPER 

116 

M 

128 

SW−TRANS 

VS1 
VS2 
VS3 

SA1 

CEMENT 

VR 

LXZ 

LXZ 

LXZ 

RRPJ2539 

TAB05

TAB11

RRPJ2303 

H  M  138 

BL01RN1−F 
BL01RN1−F 

BL01RN1−F 

JW013 

A  M 

RN2207 

 

 

RN2207 

 

 

RN2207 

 

 

RN2207 

 

 

NIKEMI

NIKEMI

NIKEMI

CEMENT 

NIHON 
CEMICON 
NIHON 
CEMICON

NIHON 
CEMICON 

NIHON 
CEMICON

NIHON 
CEMICON

   Use 
   Use 

   Use 

   Use 

    SEL1120R 
    SEL1120R 
    SEL1120R 

ALD112W 
ALD112W 

ALD112W 

OUTDOOR UNIT ELECTRIC ASSEMBLY

Summary of Contents for RAC-E10H2

Page 1: ...UIT OPERATION 37 SERVICE CALL Q A 67 TROUBLE SHOOTING 70 PROCEDURE FOR DISASSEMBLY AND REASSEMBLY 94 PARTS LIST AND DIAGRAM 96 CONTENTS AW NO 0015E RAS E10H2 RAC E10H2 RAS E10H2 RAC E10H2 RAS E10H2 RAC E10H2 W A kW B T U h W A kW B T U h W H D kg DC INVERTER WALL TYPE TYPE MODEL POWER SOURCE TOTAL INPUT TOTAL AMPERES CAPACITY TOTAL INPUT TOTAL AMPERES CAPACITY DIMENSIONS mm NET WEIGHT COOLING HEAT...

Page 2: ...uch 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 To check the insulation of the unit measure the insulation resistance between the power cord plug and T grounding terminal of the unit The insulation resistance should be 1MΩ or more as measured by a 500V DC meg...

Page 3: ...ds should be handled in the same way 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 body earth is being taken 4 Be sure to place a part on ...

Page 4: ...rcuits 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 Bare copper wire for body earth Metal plate of Al stainless steel etc Working table Resistor 1MΩ 1 2W Earth wirte Staple Fig 3 Grounding of the working table soldering iron Grounding wire Screw stop at the screwed part using a rag plate 2 ...

Page 5: ...is occasion that the cooling and heating 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 5 This room air conditioner should not be used at the cooling operation when the outside temperature is below...

Page 6: ...H TEMPORARY SWITCH SERVICE SWITCH TRANSFORMER VARISTOR NOISE SUPPRESSOR THERMOSTAT REMOTE CONTROL SWITCH LIQUID CRYSTAL 40 W NO NO NO ASC092CD YES YES 3 0A G4A NO NO YES NO 450NR YES YES IC NO WITHOUT REFRIGERANT BECAUSE COUPLING IS FLARE TYPE UNIT PIPES MAX 20m REFRIGERANT CHARGING VOLUME Refrigerant 410A RAC E10H2 820g RAS E10H2 PWM DC35V NO NO NO NO NO NO NO YES NO NO NO NO YES IC YES YES 4 ...

Page 7: ...ket where this cab k le is plugged In addition wire the cable with some allowances to prevent the cable from stretching Not doing so will cause an electrical shock heat generation or fire PROHIBITION Do not put objects like thin rods into the panel of blower and suction side because the high speed fan inside may cause danger an inside may cause danger an inside ma Do not bundle the power cable pul...

Page 8: ...idifying operation is performed warm air blows RAC E14H2 RAC E10H2 5 INDOOR UNIT INDICATIONS TIMER LAMP Orange This lamp lights when the timer is working FILTER LAMP Green FILTER LAMP Green FIL When the device is operated for a total of about 200 hours the FILTER FILTER FIL lamp lights indicates that it is time to clean the filter The lamp goes out when the AUTO SWING button is pressed while the o...

Page 9: ...ut 3 minutes unless you turn the power switch off and on or unplug the power cord and plug it in again This is to protect the device and does not indicate a failure If you press the FUNCTION selector button during operation the device may stop for about 3 minutes for protection AUTO HEAT DEHUMIDIFY COOL FAN FAN SPEED LOW MED HI SLEEPING STOP CANCEL START RESERVE START STOP TIME TIMER SET TIMER SEL...

Page 10: ...ost forms on the heat exchange of the outdoor unit for 5 10 minutes each time During defrosting operation the operation lamp blinks in cycle of 3 seconds on and 0 5 second off The maximum time for defrosting is 20 minutes If the piping length used is longer than usual frost will likely to form 9 DEHUMIDIFYING OPERATION Use the device for dehumidifying when the room temperature is over 16 C When it...

Page 11: ...EMPERATURE TEMPERA buttons the display indicates the setting The temperature setting and the actual room temperature may may ma vary somewhat depending on conditions 3 As the settings are stored in memory in the remote controller you only have to press the STAR STAR ST T STOP button next time 11 Press the STAR STAR ST T STOP button Fan operation starts with a beep Press the button again to stop op...

Page 12: ...t time setting press the TIME button twice The setting of the current time is now complete AM PM PM PM Example The current time is 1 30p m 2 Set the turn off time with the TIMER control button PM 3 Point the signal window of the remote controller toward the indoor unit and press the RESERVE button The OFF mark starts lighting instead of flashing and the RESERVED sign lights A beep occurs and the T...

Page 13: ...ard and downward directions The horizontal air deflector is automatically set to the proper angle suitable for each operation The deflector can be swung up and down continuously and also set to the desired angle using the AUTO SWING button In Cooling operation do not keep the horizontal air deflector swinging for a long time Some dew may form on the horizontal air deflector and dew may drop w may ...

Page 14: ...2 CLEANING OF FRONT PANEL ONT PANEL ONT P Remove the front panel and wash with clean water Wash it with a soft sponge After using neutral detergent wash thoroughly with clean water When front panel is not removed wipe it with a soft dry cloth Wipe the remote controller thoroughly with a soft dry cloth Wipe the water thoroughly If water remains at indicators or signal receiver of indoor unit it cau...

Page 15: ...the fan speed sets to LOW regardless of the preset speed The remote controller display indication will remain unchanged even with the LOW setting TIMER PROGRAMMING SLEEP TIMER OPERATION PROHIBITION 19 REGULAR INSPECTION PLEASE CHECK THE FOLLOWING POINTS EVERY EITHER HALF YEARLY YEARLY YEARL OR YEARLY YEARLY YEARL CONTAC CONTAC CONT T YOUR SALES A YOUR SALES A Y GENT SHOULD YOU NEED ANY HELP YOU NE...

Page 16: ...hanges due to power variations according to room temperature changes Mist is generated as the air within the room is suddenly cooled by conditioned air Water Water W generated during defrosting operation evaporates and steam is emitted Caused as the smells and particles of smoke food cosmetics etc present in room air become attached the unit and blown off into the room again Defrosting is underway...

Page 17: ...Mounting plate Wireless remote controller Cabinet 280 50 22 60 60 190 400 70 70 190 Vertical air deflector Drain Drain hose Drain cap connection port When piping is drawn from the left side exchange the drain hose for the drain cap Narrow pipe φ6 35 Wide pipe φ9 52 About 370 About 108 About 70 Power cord Connecting cable 30 56 17 5 81 5 47 47 147 210 47 5 60 11 60 5 47 15 ...

Page 18: ...700 498 7 30 Fixing hole Holed for anchor bolt 2 ø12x16slots for ø8 0 bolt Notch for anchor bolt for 2 ø8 bolt 100 500 Drain hole 9 9 282 300 68 768 768 Air suction Air outlet Air suction 100 100 Service space Rear side 150 More than More than More than 200 More than 400 OUTDOOR UNIT 16 ...

Page 19: ...5 OFF 32 0 89 6 35 3 95 5 RED WHT YEL 35V 5V 0V 0 5V FG MODEL NAME RATING APPLICABLE MODELS REVERSING VALVE COIL 135Ω 20 C RAC E10H2 REACTOR L1 13 mH 0 224Ω RAC E10H2 REACTOR L2 25 5 mH 0 37Ω RAC E10H2 FILM CAPACITOR 45 µF RAC E10H2 RAS E10H2 POWER SOURCE DC 5V 35V OUTPUT 25W 40W Control circuit built in BLU BLUE YEL YELLOW BRN BROWN WHT WHITE GRY ORN ORANGE GRN GREEN RED RED BLK BLACK PNK VIO VIO...

Page 20: ... 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 1 40 2M 1 15 U V W M M M WHITE WHITE COMPRESSOR YELLOW YELLOW RED RED FRONT SIDE OF OUTDOOR UNIT RAC E10H2 ASC092CD 800W DC 220 350 V Compressor Motor Specifications 18 ...

Page 21: ...APACITOR 375μF 2 ICP RELAY POWER RELAY R007 3A FUSE C011 L101 C003 C002 C001 VS1 SA1 15A FUSE WHT YEL ORN BLU BRN RED DIODE STACK DB1 SWITCHING POWER SUPPLY WHT BLK RED RED RED RED GRY GRY GRY GRY BLK BLK EXPANSION VALVE ELECTRIC BLK WHT BRN RED GRN1 REVERSING VALVE OVERHEAT THERMISTOR DEFROST THERMISTOR INDOOR UNIT TERMINAL BOARD DIODE STACK TERMINAL BOARD THERMISTOR BLK WHT GRN YEL BRN RED INDOO...

Page 22: ...42 SEG41 SEG40 P40 P41 P42 P43 P00 P01 P02 P03 P10 P11 P12 P13 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 BEEP P20 P30 P31 NCVL C1 VL C2 VL C3 XC IN XC OUT VDD X OUT X IN RESET CARR P23 P22 P21 VSS IC 1 M3455OM6A 504FP LCD 1 C8 50v 1u K 1 D3 RB425D 1 2 K2K3 K4 K5 P10 P11 P12 K6 K7 K8 K9 K10 K11K12 K18 K17 K15 K16 K13 K14 D0 D1 D2 D3 R1 100k SW1 R2 P 100k R3 100k R4 100k R5 Q1 2SC3443 or 2SC2982 R6 R7 R9 D2 D1 ...

Page 23: ... 21 RAS E10H2 MODEL Control P W B Auto sweep motor Indicating P W B Light receiving unit ...

Page 24: ...01 R256 5V 0V 0V C213 R255 Q205 R254 R257 C214 6 0V 5V R261 C216 R260 R259 R262 R263 4 IC5 1 2 D206 R258 5V R601 R602 R603 12V 1 12 3 2 13 7 6 5 4 11 10 C608 R608 R609 R610 R611 C604 C603 C602 C601 R604 R605 R606 R607 14 9 8 IC3 R612 R613 D208 C225 R287 0V C226 1 0V 12V 0V R284 R292 0V C215 8 5V R286 R288 R289 0V 0V 0V R268 Q204 5V 0V 12V 5V C200 C201 26 23 25 25 24 28 27 46 47 45 44 31 30 20 21 2...

Page 25: ...tection circuit HARMONICS IMPROVEMENT CIRCUIT IPM Rotor magnetic pole position detection circuit lp ld ls Buzzer circuit Indicating lamp Indoor Outdoor interface circuit DC fan moter drive circuit Microcomputer clock circuit Indoor DC fan moter Overheat thermistor Defrost thermistor Outdoor temperature thermistor Indoor Outdoor interface circuit Reversing valve coil Power circuit Reset circuit Out...

Page 26: ... 27 button MODEL RAS E10H2 BASIC MODE 29 31 31 31 35 33 ...

Page 27: ...1 CMAX 3200 min 1 CMAX2 3200 min 1 CSTD 2900 min 1 CKYMAX 2700 min 1 CJKMAX 2500 min 1 CBEMAX 2300 min 1 WMIN 2200 min 1 CMIN 2200 min 1 STARTMC 90 Seconds DWNRATEW 80 DWNRATEC 60 SHIFTW 2 00 C SHIFTC 1 33 C CLMXTP 30 00 C YNEOF 25 00 C TEION 5 00 C TEIOF 9 00 C SFTDSW 1 00 C DFTIM1 43 Minutes DFTIM2 60 Minutes ...

Page 28: ...minutes 5 During normal cooling mode compressor maximum rpm CMAX will maintain for 60 minutes if indoor temperature is lower than CLMXTP No time constrain if indoor temperature is higher than CLMXTP 6 7 When fan is set to Med compressor rpm will be limited to CJKMAX 8 When fan is set to Lo compressor rpm will be limited to CBEMAX 9 During Cool Dashed when room temperature reaches set temperature 1...

Page 29: ... is cleared 1 33 C 0 66 C Notes 1 The operation is done assuming as the preset temperature room temperature at the time 2 C 2 The indoor fan is operated in the Lo mode During thermo OFF indoor fan will be OFF for 5 3 When the operation is started by the themostat turning ON the start of the indoor fan is delayed 32 seconds after the start of compressor operation 4 The compressor is operated forced...

Page 30: ...rature SFTDSW ii Thermo off 3 During Hot Dashed operation thermo off temperature is set temperature with shift value 3 C After thermo off operation continue in Fuzzy control mode 4 Compressor minimum ON time and OFF time is 3 minutes 5 During normal heating mode compressor maximum rpm WMAX will maintain for 120 minutes if indoor temperature is higher than 18 C No time limit constrain if outdoor te...

Page 31: ...resh defrosting 5 Auto refresh defrosting cannot be engaged within 15 minutes after operation is started or defrosting is finished Sleep Lo Notes 1 The sleep operation starts when the sleep button is pressed 2 When the sleep button is set the maximum compressor speed is limited to WBEMAX and the indoor fan is set to sleep Lo 3 The indoor fan speed does not change even when the fan speed mode is ch...

Page 32: ... 36 REFRIGERATING CYCLE DIAGRAM MODEL RAS E10H2 RAC E10H2 φ9 52 φ8 0 φ8 0 φ7 0 φ6 35 φ6 35 φ4 76 φ9 52 φ8 0 φ8 0 φ7 0 φ6 35 φ6 35 φ4 76 SUCTION TANK SUCTION TANK ...

Page 33: ...ON ON ON 5V voltage rises and reaches 4 4V 4 4V 4 4V pin 1 of IC521 is set to Hi At this time the microcomputer starts operation When power OFF voltage drops and reaches 4 2V 4 2V 4 2V pin 1 of IC521 is set to Low This will RESET the microcomputer Power OFF Power ON Reset enter at 4 2V Reset release at 4 4V Voltage Voltage Voltage supply to pin 2 of IC521 Voltage at pin 7 of microcomputer 5 0V Fig...

Page 34: ...quare signal is output from buzzer output pin 30 of the microcomputer After the amplitude of this signal has been set to 12Vp p by IC711 it is applied to the buzzer The piezoelectric element in the buzzer oscillates to generate the buzzer s sound GND VOUT C212 C211 R212 0V 0V 0V R211 0V ZD141 R141 R611 C611 0V RECEIVER I P Microcomputer 13 BZ1 R721 12V IC711 Microcomputer Buzzer output 16 1 30 BZ ...

Page 35: ...ite to turn the rotor Table 4 1 shows the rotation angle of horizontal air deflectors Microcomputer 18 17 16 15 11 10 12 6 7 5 13 4 IC711 12V CN4 Rotor Auto sweep motor for horizontal air defectors Micro computer pins Step width 10ms Horizontal air deflectors 15 16 17 18 1 2 3 4 5 6 7 8 Table 4 1 Auto sweep Motor Rotation Rotation angle per step Time per step ms 0 0882 10 Horizontal air deflectors...

Page 36: ...C DC converter and the 35 V power supply from the outdoor unit to generate 12 V control power which drives the stepping motor during the operation In addition use the regulator IC 121 to generate 5 V power required for driving the micro computer and controlling fan motor If the terminal block was overheated due to a connecting cable improper connection the thermal fuse built in the terminal block ...

Page 37: ...pulse of the speed which is input into the pin 14 on the micro computer This pulse is equivalent to a frequency of 12 60 speed Example 1000 min 1 x 12 60 200 Hz The micro computer monitors the frequency and adjusts command speed stopped temporarily as fan lock error After 10 seconds restart the output of the pulse If fan lock error is detected twice within 30 minutes all units are stopped and the ...

Page 38: ...rent When the current runs through the L1 is taken for I1 and the current runs through the L2 is taken for I2 as shown in Fig 1 2 I1 becomes an input current to the capacitor which peak value was crushed by the L1 and I2 becomes a resonance current which causes the LC resonance using the L2 and C023 By combining the I1 and I2 the input current from the main power shapes a waveform shown in the rig...

Page 39: ...ring operation of compressor and also absorb external noise entering from power line to protect electronic parts Be sure to connect the earth cable between the indoor unit and the outdoor unit Otherwise the noise filter circuit won t operate properly 6 SA1 and VS1 to VS3 These surge absorber and varistors absorb external power surge such as induced thunder Be sure to connect the earth cable betwee...

Page 40: ...on the outdoor microcomputer is designed so that it cannot receive a signal while it is outputting a request signal The receiving circuit in the indoor unit consists of a comparator and transistor The interface signal from the outdoor unit on the DC 35V line is supplied to C821 where DC components are eliminated and is then shaped by the comparator The shaped signal is detected by diode amplified ...

Page 41: ...1 4 R 2 5 6 R R 2 5 5 C 2 1 3 D 2 0 6 R 2 5 7 R 2 5 4 Q 2 0 5 Ⅰ C 5 1 2 5 V R 2 6 3 3 5 1 4 4 8 8 2 8 8 2 7 Micro Computer HIC TERMINAL BOARD Communications from indoor microcomputer to outdoor microcomputer Communications from outdoor microcomputer to indoor microcomputer Fig 2 1 Indoor Outdoor interface circuit 5 5 Fig 2 1 shows the interface circuit used for the indoor and outdoor microcomputer...

Page 42: ...in 50 Pin 49 Fig 2 2 Voltages Waveforms of Indoor Outdoor Microcomputers Outdoor to Indoor Communications Fig 2 3 Voltages Waveforms of Indoor Outdoor Microcomputers Indoor to Outdoor Communications Outdoor microcomputer Pin 48 Pin 51 Indoor microcomputer Pin 50 Pin 49 Outdoor microcomputer Pin 48 Pin 51 Indoor microcomputer Pin 50 Pin 49 Outdoor microcomputer Pin 48 Pin 51 Indoor microcomputer Pi...

Page 43: ...0ms Leader 100ms When reset approx 100ms When reset approx 10ms 35 V 34 V 36 V 0 7 0 7 7 7 0 33 3ms 3 2 1 NO 0 Bit No 0 7 0 7 0 7 0 7 Bit No 0 3 2 1 33 3ms 33 3ms 33 3ms Transmit receive switching time 4 95ms 33 3ms 33 3ms Outdoor message Indoor message 33 3ms 33 3ms 0 Character No 1 frame 100ms 33 3ms 8 4 95ms 371 35ms 2 Indoor microcomputer to outdoor microcomputer HIC 2 Indoor microcomputer to ...

Page 44: ...n bit Capacity code 0 LSB Capacity code 1 Capacity code 2 Capacity code 3 MSB During forced operation Defrost request signal Self diagnosis 1 Self diagnosis 0 LSB Outside temperature 0 LSB Actual compressor rotation speed 0 LSB Compressor command speed 0 LSB Compressor minimum rotation speed 0 LSB Compressor minimum rotation speed 1 Compressor minimum rotation speed 2 Compressor minimum rotation s...

Page 45: ... 3 L 2 D B 3 R 0 0 8 C 0 2 2 C 0 2 1 C 1 0 0 R 0 0 1 Intelligent power module U coil V coil W coil DC compressor motor Fig 3 1 System power module circuit U is ON V is ON 3 Intelligent power module circuit IPM circuit Fig 3 1 shows peripheral circuits of intelligent power module IPM In the diagram U V and W are called the upper arm U V and W the lower arm 49 ...

Page 46: ... U transistor is ON U transistor U coil V coil V transistor transistor DC current detection resistor Point B Fig 3 3 2 When U transistor is OFF by inductance of motor coil U coil V coil V transistor transistor V Time W T V U V Upper arm transistor Lower arm transistor W W U E F E F W W V V Fig 3 2 Switching order of power module Fig 3 3 Voltage waveform at each point U transistor chopped Chopping ...

Page 47: ...rrent waveform at point B point B becomes intermittent waveform as shown in Fig 3 3 Since current at point B is approximately proportional to the input current of the air conditioner input current is controlled by using DC current Id y using DC current Id y Table 3 1 Ip peak current cut LD301 Blinks 2 times Blinks 3 times Blinks 4 times LD301 LD301 Self diagnosis Self diagnosis lamp and mode Abnor...

Page 48: ...rter drives and the peak current is detected IPM outputs Fail signal Pin 24 Active Lo and lower arm IGTB is forcibly turned off inside IPM at the same time At this time all microcomputer signals of upper and lower arms are shut off by IC9 and D501 4 6 5 2 3 1 3 3 4 4 3 3 2 2 3 3 3 3 3 1 3 3 5 5 R 0 0 1 6 Ⅰ P M H Ⅰ C 7 8 9 1 1 0 0 1 1 7 2 1 1 1 4 5 0 V Ⅰ C 9 C 2 0 2 5 V R 5 0 7 R 5 0 8 R 5 0 9 D 5 ...

Page 49: ... 5V 0V V W U U 15V 0V U V W V W V W 5V 0V V W U U 15V 0V U V W V W V W Fig 4 2 Fig 4 3 In low speed operation In high speed operation Drive signal at point A Internal drive signal of IGBT Drive signal at point A Internal drive signal of IGBT 120 120 120 120 120 53 ...

Page 50: ...g 5 1 peripheral circuits and IPM driver circuit and as well as DC 35V are produced ell as DC 35V are produced ell as DC 35V by switching power circuit Switching power circuit performs voltage conversion effectively by switching transistor IC1 to convert DC 330V voltage to high frequency of about 20kHz to 200kHz AC220 230V C012 C013 14 54 ...

Page 51: ... power circuit is normal Check the removed loads If any error is found in this step the power circuit has any failure Replace the MAIN P Replace the MAIN P Replace the MAIN W P W P B A short circuited load may cause an output error not only in the load but also in the others Be sure to check all outputs of the loads k all outputs of the loads k all outputs of the loads Be sure to wait 15 minutes o...

Page 52: ... 6 6 4 4 4 4 7 7 7 2 2 4 4 4 1 1 2 2 5 6 Peripheral circuits of microcomputer Fig 6 1 shows the microcomputer and its peripheral circuits Table 6 1 shows the basic operation of each circuit block and Fig 6 2 shows the system configuration IPM Intelligent Power Module Detection resistor DC current DC voltage Fig 6 1 Peripheral circuits of microcomputer Table 6 1 Circuit block Peak current cutoff ci...

Page 53: ...3 shows the peak current cutoff circuit and waveforms at each section Voltage at point Voltage at point Main P W B HIC Outdoor microcomputer Ip cut circuit detects instantaneous large current and operates to protect various parts such as IPM by stopping inverter When current exceeding 25A flows as shown in the diagram voltage at point A detected by detection resistor is divided by R906 and R905 an...

Page 54: ...m air conditioner system through the current sensor CT1 in order to keep the maximum rating of components by reading total operating current ID OVL is watching and limits the compressor current through the detection resistor which is built in IPM in order to control the compressor reliability reliability reliability Since the compressor reliability is related with its curve All of OVL operation va...

Page 55: ...alues which vary according to the rotation speed When the DC current level exceeds the set value the microcomputer enters the overload control state The set Value is determined by the amplification of the voltage amp circuit Amplification high DC current low Amplification low DC current high Fig 6 7 2 ID OVL Fig 6 5 The filter consisting of R245 and C217 removes high harmonic frequencies from the ...

Page 56: ... DC voltage multiplied by DC current R247 R248 R249 are provided to perform the same overload judgement even when the voltage varies It is required to maintain the start current DC current constant to smooth the start of the DC motor of the compressor RAC E10H2 uses software to control the start current The start current varies when supply voltage varies This control method copes with variations i...

Page 57: ...e and 5V line voltages rise and 12V line voltage reaches 10 9V an reset voltage input to pin 7 of microcomputer is set to Hi Reset voltage will be hold Hi until the 12V line voltage drops to 9 90V even though the power shuts down Fig 6 10 Fig 6 11 HIC Microcomputer RESET OUT RESET 19 7 C204 0V R252 1 0V 8 2 3 IC5 1 2 5V D208 R287 C215 R284 R286 C225 R285 C226 R292 R289 R288 0V 0V 0V 0V 12V 12V lin...

Page 58: ...ol During defrosting operation the microcomputer transfers the defrosting condition command to the indoor microcomputer via the circuit interface 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 switching s the operation status outdoor fan on off etc in the dehumidifying mode The follo The follo...

Page 59: ...ally ON close Table 6 3 shows the circuit operation of each operation mode If the following result is not obtained reversing valve control circuit may be defective Table 6 3 Point Operation mode Cooling In normal cooling operation In normal heating operation In defrosting operation approx 35 V approx 35 V 0V Hi 0V Hi 12V Lo 0V not fixed Heating Between Pin 29 of microcomputer and 0V Between Pin 32...

Page 60: ...ve Microcomputer Valve 4 Valve 3 Valve 2 Valve 1 Electric expansion valve is driven by B 12V Opening of the valve is controlled by feeding power to 1 or 2 phases of the 4 phase coil to switch the polarity of the coil The relation between the conducting phase switching direction and open close direction is as shown below When the power is turned on approx 0 9 V is applied to CN15 pins 1 to 4 when n...

Page 61: ... feedback Slower Instruction Faster Increase pulse width FG pulse is also used for Fan Motor failure detection Microcomputer will monitor FG pulse 30 seconds after start the fan motor If there is no signal detected it will consider that the Fan Motor was malfunction and stop the operation In this case LD302 on main R107 and IC4 are used for Fan Motor over current Vsp high Faster Vsp low Vsp low V ...

Page 62: ...or unit by snowing unit will be restart again after a while In case of Fan Lock Stop even though the DC Fan Motor is rotating correctly correctly correctly the possible cause in Fan Motor problem or control board problem Stop after the Fan motor runs 2 minutes Fan Motor may be broken Caution Please take care for the electrical shock by high voltage of DC Fan Motor power source which is common with...

Page 63: ... is preset at 30 Check if the indoor heat exchanger is frosted Wait for 3 4 minutes until it is defrosted If the air conditioner operates in cooling mode when it is cold the evaporator may get frosted It occurs during defrost ing Wait for 5 10 minutes until the condenser is defrosted At the beginning of heating the fan speed remains LOW for 30 seconds If HIGH is selected it switches to LOW and aga...

Page 64: ...fore 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 is ...

Page 65: ...st the temperature within a range of 3 C by pressing the Room Temperature button If the temperature is 1 C higher than the auto preset temperature 1 C will appear If the temperature is 1 C lower than the auto preset temperature 1 C will appear heard when operation is started When operation is started the compressor rotation speed goes to maximum to increase the heating or cooling capability so noi...

Page 66: ...round it Don t forget that high voltage as noted in the figure above may apply to the oscilloscope Remember that voltage of 175 V is applied to the 0V line on the P W B or the like as shown in the right diagram Indoor Controller Outdoor Controller Power Switch Point 400 F I P M Compressor motor Point line Control P W B Main P W B Voltage at point A Ground voltage Grounding 350V Point B 0V line Pow...

Page 67: ... smoothing capacitors Discharge Procedure 1 Turn off the power of the indoor unit or pull out the power supply plug 2 After power is turned off wait for 10 minutes or more Then remove electrical parts cover and apply soldering iron of 30 to 75 W for 15 seconds or more to TAB05 and R001 TAB05 and R001 T terminals on the main P W P W P B as shown in the figure below in order to dischargevoltage in s...

Page 68: ...ctors from the CN1 heat exchange thermistor CN4 stepping motor and CN10 fan motor 3 Remove two lock screws 4 Remove the electrical parts in the direction of arrow Removing control P W B W B W 1 Remove the connectors from the CN2 and CN3 2 Remove the P W B from the P W B support MODEL RAS E10H2 STRUCTURE OF AN INDOOR UNIT ELECTRIC PARTS ELEC COVER P W B SUPPORTER P W B SUPPORTER P W B SUPPORTER P W...

Page 69: ...edance When a probe such as a multimeter circuit causing the ICP1 blowout and Q111 failure 4 During power feeding to the P W B do not remove and insert the CN10 fan motor connector 2 The CN3 power supply and CN10 fan motor are the connectors with lock mechanism Press the lock with your fingers to unlock and remove the connector 3 When checking the voltage and waveform do not connect the probes to ...

Page 70: ...modes only the retry operation is repeated without lamp indication Failure modes that will repeat a retry operation without the indoor unit lamp indication are as follows OH thermistor temperature rise Outdoor unit communication error Power voltage abno wer voltage abno wer v rmal Less frequent defects The LD301 indicates a mode of failure detected on the outdoor unit side by blinking frequency li...

Page 71: ...hanger thermistor disconnected only in the heating mode Note The malfunction mode is entered the 3rd time this abnormal indication appears read every 3 minutes Electrical parts in the outdoor unit 1 Indoor interface circuit 2 Outdoor Outdoor unit electrical components For details operate again using remote comtroller and check from self diagnosis display of outdoor unit interface circuit 1 Room th...

Page 72: ...EXPOSED TO DIRECT 1 OUTDOOR UNIT IS EXPOSED TO DIRECT 1 SUNLIGHT OR ITS AIRFLOW BLOCKED 4 THE VOLTAGE IS EXTREMELY LOW 6TIMES OH THERMISTOR TEMP RISE 7TIMES THERMISTOR ABNORMAL 1 THERMISTOR 2 CONNECTION OF THERMISTOR DEFECTIVE 3 THERMISTOR CIRCUIT 8TIMES 1 LEAK OF REFRIGERANT 2 COMPRESSOR 13TIMES 10TIMES EXAMPLE OF BLINKING 5 TIMES 2SEC LIGHTS FOR 0 25 LIGHTS FOR 0 25 SEC AT INTERVAL SEC AT INTERV...

Page 73: ...frigerating cycle Normal No Yes Check the drive circuit IMP using the PRD checker Check the position sensor circuit With the unit set in the operating state press the start stop button Does the unit operate for approximately 2 seconds the LD303 coming on and then stop due to a failure of switching the lamp blinking 4 times OUTDOOR UNIT LD303 LD302 LD301 MAIN P W B SERVICE SWITCH HIC IPM 77 ...

Page 74: ...ing cable connected incorrectly inserted incompletely or disconnected Not running Running Open the outdoor unit and observe the self diagnosis lamp LD301 Count how many times the lamp blinks Blinks other than 1 time Blinks 1 time Can the unit be operated using the outdoor unit service switch See the nameplate on the outdoor unit for operating instructions Check the outdoor electrical parts Check t...

Page 75: ...door unit connection cable and correct any defective section wrong connection incomplete insertion Is AC220 230V being generated between terminals A and B on the outdoor unit terminal board Is DC35V or 20V being generated between terminals C and D on the indoor unit terminal board Is the microcomputer reset input pin 7 Hi Is the microcomputer clock signal generated normally Is DC35V is being gener...

Page 76: ...ation check Are pulse signals output at microcomputer pins 15 18 when auto swing is turned on in the fan mode Replace the microcomputer Is a voltage over 15 or below 10V being generated on the 12V line No No No No Perform final operation check output at pin 24 is 1 5V Check IC711 If it is normal replace the air deflector motor Replace IC111 3 Air deflector does not move others are normal Yes Yes Y...

Page 77: ... board Insert the connection cable securely Replace IC121 Check if a short occurs in the 5V line If the 5V line is shorted ICP1 will be open again Check to see if the connection cables are disconnected or reversed If normal check the outdoor unit P W B Has the terminal board thermal fuse blown open Replace Q111 and IC111 Is DC5V being generated Perform final operation check When the unit is not in...

Page 78: ...e sensible area should flash in orange when you operate the remote control unit if it is good Ultra redray test card Sensible area Within 2 cm Check functions again If it does not work replace the remote controller Buzz Within 15 cm AM radio Check the LED D1 with a multimeter Replace the battery Install the battery in the correct polarity Yes Yes No No No Yes Does the radio buzz noisily Is battery...

Page 79: ...o be defective Replace defective parts Is the power circuit normal See the description on power circuit for details Is the switching power circuit OK Has the 3A fuse blown Check to see if C and D cables are connected correctly If reversed or incompletely inserted correct the cable connection Replace any defective parts If the 3A fuse has blown the varistor 2 etc may also be defective With the pipi...

Page 80: ...after the fan operates for 2 minutes Is the voltage between 4 and 6 at CN24 normal Normally the voltage is above approx DC1 7V Connect the connector Remove any obstructions Replace the fan motor and main P W B Is the voltage between 4 and 7 at CN24 normal Check to see if the voltage is within 2 5V 0 5V using a tester In effect the output voltage is alternately switched between 5V and 0V Replace th...

Page 81: ...erminals A and B on the terminal board Apply AC220 230V Check the interior wiring TAB05 TAB11 reactor and C023 yellow green connected properly Connect properly Replace the main P W B Possible causes include Power relay malfunction Defective microcomputer terminal Yes Yes Yes No No No 85 ...

Page 82: ... Is DC35V being output between terminals C and D Normal DC32V 39V Is DC35V being output at both ends of R35 Connect properly Replace the main P W B Defective SW power supply Replace the main P W B NF coils IF coils etc may be broken Check the interface circuit and replace the main P W B if needed No No No No Yes Yes Yes Yes 86 ...

Page 83: ...ting to connect after servicing Is the continuity of the thermistor normal Is the thermistor circuit normal 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 Yes Yes Yes No No No No 87 ...

Page 84: ...lter Check the outdoor unit for defective shielding LD301 blinks 4 times Failure of switching Is the 15V power supply output normal Main P W B display Is the intelligent power module IPM normal Inverter section The intelligent main module may be defective Replace the main P W B See System Power Module Diagnosis With CN3 and CN4 disconnected is the 15V output between 15V and 15 0V on the main P W B...

Page 85: ... W B LD301 blinks 1 time Reset stop However the unit always resets and stops just after power is supplied this does not indicate a fault Is the reset circuit normal Normally pin 7 of CN18 is approx 5V Replace the main P W B Make sure again that connectors are connected securely Perform final operation check Yes Yes Yes No No 89 ...

Page 86: ...If the compressor checker for an inverter type air conditioner is available re check using it JUDGING BETWEEN GAS LEAKAGE AND COMPRESSOR DEFECTIVE Blinking off Time until the lamp lights Approx 10 seconds Approx 10 seconds Approx 10 seconds Within Approx 30 seconds Compressor Compressor Gas leakage Possible malfunctioning part LD301 Self diagnosis lamp Lighting mode Blinks 2 times Blinks 3 times B...

Page 87: ...mall dia pipe side service valve using a pipe Parts to be prepared 1 Reducing union 2 8 6 35 mm 3 8 9 52 mm 2 Copper pipe 2 8 and 3 8 Connect the small diameter service value and the large diameter service valve using the reducing union and copper pipe as shown on the right Charge refrigerant of 300g The operation method is the same as How to operate using the connector to servicing the outdoor un...

Page 88: ...ule Terminal symbols of power module 6 PGU 12 PGV 18 PGW 21 NGU 22 NGV 23 NGW 24 Fail signal 31 P 32 U 33 V 34 W 35 N NGW NGV NGU PGW PGV PGU P U V W L I N 2 F O L I N 3 H S H I N L O 3 3 4 L O 1 L I N 1 H S H O H O H I N H I N H O 3 3 L O 2 H S 3 2 N 28 26 24 22 20 18 16 12 10 6 4 1 27 25 35 34 33 32 31 N W V U P 23 21 15 13 9 7 3 2 4 3 5 2 3 2 2 2 1 1 8 1 2 6 3 1 Model 92 ...

Page 89: ...s performed it is normal When a digital multimeter is used and terminals will be reversed since the orientation of built in battery is inverted Note If internal circuit of power module is disconnected open and pointer of the mutimeter does not swing it may be assumed to be normal If the pointer swings when and terminals are connected in reverse it is normal Compare swing statuses for U V and W pha...

Page 90: ...ng two screws pull the center of the front cover forward and release the claws 2 Hold the front cover at both lower sides and pull them forward to remove Fig 3 Indicating P W B Control P W B Support hook 3 Control P W P W P B and Indicating P W B 1 Remove each connector from the lead wire P W B 3 Pull the support hook at the upper side of the indication lamp of the Indicating P W B Fig 4 Procedure...

Page 91: ... screws 2 locations and radiation fin fixing screws 5 locations and remove the P W B from the support 1 Electrical Parts 1 Remove the upper cover fixing screws and lift the cover to remove it 2 Remove the service valve cover 3 Remove the terminal plate cover 4 Remove the right side cover 3 Remove the screws from the upper and lowerbearing covers 4 Remove the locking hook of the lower bearingcover ...

Page 92: ...INDOOR UNIT MODEL RAS E10H2 1 39 13 9 17 38 18 14 12 11 10 23 20 15 16 37 36 35 34 33 41 40 32 19 22 43 21 29 30 25 31 24 26 42 28 27 7 6 2 3 4 8 PARTS LIST AND DIAGRAM 96 ...

Page 93: ...SWICHI 20 1 P W B MAIN 21 HWRAS 25YH4 922 1 P W B INDICATION 22 HWRAS 25YH4 923 1 CONNECTING CORD 12PIN 23 HWRAS 25YH4 924 1 ELECTRIC PARTS COVER 24 HWRAS 25YH4 925 1 COVER TERMINAL 25 HWRAS 25YH5 907 1 DRAIN PAN 26 HWRAS 25YH5 908 1 HORIZONTAL AIR DEFLECTOR 27 HWRAS 25YH4 928 2 DEFLECTOR SUPPORT 28 HWRAS 25YH4 929 1 AUTO SWEEP MOTOR 29 HWRAS 25YH4 930 1 DRAIN CAP 30 HWRAS 25YH4 931 1 HEAT INSULAT...

Page 94: ...OUTDOOR UNIT MODEL RAC E10H2 2 19 18 50 4 3 6 17 20 12 16 8 13 14 7 35 36 39 25 33 30 40 38 35 29 41 51 39 36 46 44 37 27 45 32 31 47 42 10 5 9 43 1 24 23 22 21 28 98 ...

Page 95: ...PORT 22 HWRAC E10H2 915 1 FAN MOTOR 47W 1 4kg 23 HWRAC 25YH4 923 1 PROPELLER FAN 24 HWRAC 25YH4 924 1 NUT PROPELLER FAN 25 HWRAC E10H2 916 1 SIDE COVER L HWRAC E10H2 917 27 1 FRONT COVER 28 HWRAC E10H2 918 1 DISCHARGE GRILL 29 HWRAC E10H2 919 1 ELECTRIC PARTS PLATE 30 HWRAC E10H2 920 1 ELECTRIC PARTS COVER 31 HWRAC E10H2 921 1 TERMINAL PLATE 32 HWRAC 25YH4 932 2 TERMINAL BOARD 2P 33 HWRAC E10H2 92...

Page 96: ...UIT OPERATION 37 SERVICE CALL Q A 67 TROUBLE SHOOTING 70 PROCEDURE FOR DISASSEMBLY AND REASSEMBLY 94 PARTS LIST AND DIAGRAM 96 CONTENTS AW NO 0015E RAS E10H2 RAC E10H2 RAS E10H2 RAC E10H2 RAS E10H2 RAC E10H2 W A kW B T U h W A kW B T U h W H D kg DC INVERTER WALL TYPE TYPE MODEL POWER SOURCE TOTAL INPUT TOTAL AMPERES CAPACITY TOTAL INPUT TOTAL AMPERES CAPACITY DIMENSIONS mm NET WEIGHT COOLING HEAT...

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