Fujitsu ASU24CL, AOU24CL, ASU24RL, AOU24RL Service Manual

SPLIT TYPE
ROOM AIR CONDITIONER

WALL MOUNTED

Models

Indoor unit Outdoor unit

ASU24CL AOU24CL
ASU24RL AOU24RL

type

CONTENTS

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

DIMENSIONS ....................... 2

REFRIGERANT SYSTEM DIAGRAM .... 3

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

5INDOOR PCB CIRCUIT DIAGRAM .....

8OUTDOOR PCB CIRCUIT DIAGRAM . . .

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

DISASSEMBLY ILLUSTRATION ....... 14

PARTS LIST ....................... 20

STANDARD ACCESSORIES

..........

13

22

SPECIFICATIONS

INDOOR UNIT

OUTDOOR UNIT

COOLING CAPACITY

HEATING CAPACITY

ELECTRICAL DATA

POWER SOURCE

FREQUENCY

COOLING

RUNNING CURRENT

HEATING

COOLING

INPUT WATTS

HEATING

SEER

ASU24CL ASU24RL

AOU24CL AOU24RL

24,200 BTU/hr 24,200 BTU/hr

--- 27,600 BTU/hr

208 V / 230 V 208 V / 230 V

60Hz 60Hz

10.1 A 10.1 A

--- 10.8 A

2,310 W 2,310 W

--- 2,470 W

18.0 18.0

NOISE LEVEL

C47dB / H45dB

C41dB / H41dB

C36dB / H36dB

C32dB / H32dB

C52dB / H53dB

INDOOR UNIT

OUTDOOR UNIT

HIGH

MED

LOW

QUIET

47 dB

41 dB

36 dB

32 dB

52 dB

REFRIGERANT CHARGE (R410A)

Pipe Length

FULL CHARGE
AMOUNT

ADDITIONAL CHARGE

15 m

20 m

25 m

30 m

3 lb. 8 oz. (1,600 g)

3 lb. 12 oz. (1,700 g)

3 lb. 15 oz. (1,800 g)

4 lb. 3 oz. (1,900 g)

0.2 oz./ft. (20g/m)

MOISTURE REMOVAL

AIR CIRCULATION -High

COMPRESSOR

TYPE

DISCRIMINATION

POWER SOURCE

REFRIGERANT R410A

FAN MOTOR

POWER SOURCE

INDOOR UNIT

OUTDOOR UNIT

HIGH

MED

LOW

QUIET

COOL

HEAT

6.3 Pts/hr
(3.0 L/hr)

647 cfm

(1,100 m

1,000 r.p.m.

3

/hr)

Hermetic motor compressor,

4 poles, Involute scroll type

5CS160XAA23

208 V / 230 V 60Hz

3 lb. 8 oz ( 1,600 g )

208 V / 230 V

1,310 r.p.m.

1,120 r.p.m.

940 r.p.m.

830 r.p.m.

--- 1,050 r.p.m.

6.3 Pts/hr
(3.0 L/hr)

647 cfm

(1,100 m3/hr)

1,000 r.p.m.

DIMENSIONS

INDOOR UNIT HxWxD

OUTDOOR UNIT

HxWxD

12-5/8 x 39-1/4 x 9 inch

320 x 998 x 228 mm

22-3/4 x 31-1/8 x 12-3/8 inch

578 x 790 x 315 mm

WEIGHT

INDOOR UNIT

OUTDOOR UNIT

Gross / Net

Gross / Net

40 / 31 lbs. (18 / 14 kg )

106 / 97 lbs. (48 / 44 kg )

12006.03.20

OUTLINE AND DIMENSIONS

Unit : inch (mm)

INDOOR UNIT

12-5/8"

(320)

OUTDOOR UNIT

39-1/4" (998)

13-11/16" (347)

1-7/8" (48)

23-1/4" (540)

31-1/8" (790)

20" (508)

3/4" (20)

9" (228)

12-5/8" (320)

4-15/16" (125)

2-3/8"
(60)

11-13/16" (300)

22-3/4" (578)

3/8"

(10)

2006.02.23

2

REFRIGERANT SYSTEM DIAGRAM

Models :

Muffler

ASU24CL / AOU24CL
ASU24RL / AOU24RL

3-Way

valve

Compressor

4-Way valve

Heat exchanger

( INDOOR )

2-Way

valve

Strainer

Sub-accumulator

Strainer

Cooling
Heating

Refrigerant pipe diameter
Liquid : 1/4" (6.35 mm)
Gas : 5/8" (15.88 mm)

Heat exchanger

( OUTDOOR )

Expansion valve

Strainer

2006.02.02 3

Controller PCB Assy

Capacitor PCB

TR PCB Assy

(IPM)

Power Supply PCB Assy

4

Controller PCB Assy

INDOOR UNIT OUTDOOR UNIT

CIRCUIT DIAGRAM

Indicator PCB Assy

2006.05.31

CONTROL UNIT

ASU24CL : EZ-005CWSE

ASU24RL : EZ-00523HSE

TERMINAL BOARD

O

THERMAL

N

K05CY-0500HSE-D0

INDICATOR PCB ASSY

CN201

JB20-07HG

123

456

7

PIPE TEMPERATURE

THERMISTOR

BLACK

BLACK

ROOM TEMPERATURE

THERMISTOR

XARR-03VF XAP-03V-1

WHITE

BLACK

CN2-2

CN2-1 BLACK

2

1

2

CN1

2P-SAN

CN13

CN13-1

123

CN13-2

TEST

CN13-3

CN13-4

4

CN13-5

5

B5P-SHF-1AA

6

CN10

B06B-XARK

RED

CN10-6

12345

WHITE

BLACK

CN10-3

CN10-4

YELLOW

CN10-2

6

BLUE

CN10-1

OUTPUT COMUNICATION (OUT)

2

CN8

B06B-PASK

RED

CN3

2P-SCN

12345

CN3-1

CN3-2

1

CN11-1 RED

CN11-2 WHITE

CN11-3 WHITE

CN11-6 WHITE

CN11-7 WHITE

CN11-4 WHITE

CN11-5 WHITE

OUTPUT COMUNICATION (IN)

CN11

123

456

B07B-9ASK

WHITE

TM1

22007

BLACK

TM4

22007

RED

22007

GREEN

W5 TM2

CONTROLLER PCB ASSY

ASU24RL : K05CX-0506HSE-C1

ASU24CL : K05CX-0507WSE-C1

123

4

12345

C

FUSE 102

2

1

EARTH TERMINAL

3

CN6

B05B-XASK

5

CN2

SJH20-05WS

CN14

7

CN5

SJH20-06WS

123

B2B-XH

12345

CN16

6

B3B-XH

1

EARTH

L

SERIAL

CN6-1 BLACK

CN6-1 RED

CN6-1 WHITE

CN2-1 RED

CN2-2 ORANGE

CN2-3 YELLOW

CN2-4 PINK

CN2-5 BLUE

CN5-1 RED

CN5-2 ORANGE

CN5-3 YELLOW

CN5-4 PINK

CN5-5 BLUE

CN8-1 RED

CN8-2 ORANGE

CN8-3 YELLOW

CN8-4 PINK

CN8-5 BLUE

OUTDOOR UNIT

INDOOR PCB CIRCUIT DIAGRAM

Models :

ASU24CL

ASU24RL

REMOTE CONTROL UNIT

AR-3TATYPE

M

LOUVER

( RIGHT / LEFT )

M

LOUVER

( UP / DOWN )

M

DIFFUSER

F. M .

FAN MOTOR

2006.03.23 5

5V

H I C FOR SERIAL COMMUNICATIONS

1

21

2

3

3

4

4

5

5

10

6

I C26-10

IC26

1.0K

R106

</2W>8

14

27

VA6

470V

<TNR>

18

8

(3)

TM2

5V

R114 390

<1/10W>

3

3

2

I C26-14

R105

10K

OFGERING POWER

D14

DAN202K

2

1

1

2

3

<1/10W>

R103

C50

I C1-6

Q11

DTC124EUA

Q10

1

(95)

390

<1/10W>

<B>

0.01

C54

0.01

<B>

DTC124EUA

I C1-47

I C1-46

R111 330K

<1/2W>

R111 330K

<1/2W>

280V

D15

MTZJ30B

5V

(90)

5V

10K

R108

<1/10W>

ABNOMAL VOLTAGEDETECTOR

W3

(4)

K1-4

POWER RELAY

(20)

15V

3

O

G

2

I C20

I

78M15

1

Q9

2

JM9

13

15V LINE ON-OFF CONTROL

0.1

<F>

C25

20V

(18)

I C17

<KD / KE>

D4

D1FL20U

35V

270

R42

<1/10W>

+

47/

16V

C27

A

C21

0.1

<F>

C20

0.1

<F>

(76)

5V

C18

10/

25V

+

VA5

470V

<TNR>

C17

330/

25V

+

VA4

470V

<TNR>

C12

0.1

<F>

3

2

G

IC2

IO

NJM7805

1

7V

(96)

(97)

TM1

(77)

JM3

C22

0.1

<F>

+

C19

330/

25V

T1-12

5V

R79, R81 - R84

10K <1/10W> x 5

CONTROLLER PCB ASSY

ASU24RL : K05CX-0506HSE-C1

ASU24CL : K05CX-0507WSE-C1

T1-12

12V

D12 D2F20U

D10 D1FL20U

8

9

T2

MY064

2

543

6

D9 D1FL20U

20V

D7

1NH42

280V

TH1

5D-11

W5

POWER SUPPLY CIRCUIT

Models :

ASU24CL

ASU24RL

C4

R45 100K

R67

10

1

C6

R70

1.2K

150

100P

C32

<RS - 2W>

150/

I C26-10

I C26-14

TEMPERATURECORRECTION-1

AUTO RESTART/ PLUG ON

JM5

I C1-76

<1/10W>

<1/10W>

C35

<D>

0.01

<ECQE>

3

315V

1

2

(2)

TEMPERATURECORRECTION-2

JM7

JM6

I C1-42

I C1-41

R48

34K

R53

5.6K

R64

1.8K

0.01 <F>

D8

1SS355

R46

+

4

T1

3

L1

4

F1

K1-4

REMOTE CONTROL SWITCHING-1

JM8

I C1-75

<1/10W>

<1/10W>

C38

<1/10W>

VA3

470V

VA2

470V

1

Q7

2SA1037AK

47

<1/2W>

IC8

TOP243

D6

0.7A - 5.0MH

C13 0.01

250V

C8 0.47

FH2

FH1

<Q>

GS I B460L

VA1

REMOTE CONTROL SWITCHING-2

JM10

JP SETTING

I C1-74

R76 7.87K

<1/10W>

1%

0.1 <F>

1

I C19

TL431 I LPR

REF

2

3

A

C

C37

820/

25V

+

2

1

I C15

<TNR>

4

3

<TNR>

C33

3

0.1

<F>

C29

2

15K

R38

2

1

L

X

C

DFS

R34 6.8K

6

5

43

2

1

250V

C14 0.01

275V

470V

<TNR>

TM4

PS2501L-1

33/

+

R49 10K <1/10W>

<1/10W>

<1/10W>

(1)

R112 62K

<1/2W>

2

1

4

3

2

3

R107

C52

I C1-38

12V

K1

C56

0.1

+

C42

330/

R77 10K

+

C39

100/

PS2501L-1

5V

I C18-5

5V

5V

(91)

CN9

A

LUVER OPERATING CIRCUIT

I C27

<KD / KE>

PS2501L-1

CN8

5

6

Q12

DTC144EUA

1

12V

1.0K

1000P

DW12D1

<F>

<1/10W>

<R>

3

4

(48)

2

I C7-3 uLN2003

1

14

3

(19)

25V

R8 1.0K <RS - 2W>

2SA1036(R)

R78 10K

<1/10W>

<1/10W>

35V

R72 100K <1/10W>

A

4

3

<KD / KE>

1

2

5V

9

31

<1/10W>

R65 330

P51

P50

VDD

EVDD

IC1

P00

P01

P02

P03

uPD780148

512

4443424140393818192021222324258079787776757473

uLN2003

I C1-43

I C1-42

R37 10K <1/10W>

R40 10K <1/10W>

5V

VPP

RESET

R35

(93)

(94)

(92)

2

3

1

5

6

4

DIFFUSER

4

3

(50)

(49)

I C7-5 uLN2003

12

I C7-4 uLN2003

13

5

4

53

545556

P52

P53

P04

P05

I C1-40

I C1-41

EEPROM

CN2

2

(51)

6

I C7-6 uLN2003

51

52

P55

P54

P06

P10

I C1-39

I C1-38

IC6

R39 10K <1/10W>

5V

ROOM TEMP. PIPE TEMP. THERMISTOR

5V

RIGHT / LEFT

5

4

1

(52)

(53)

I C16-1 uLN2003

16

I C7-7 uLN2003

1

10

7

ALAM

334950

P60

P57

P56

P11

P13

P12

CS

BR93LC46

632

1

CS

SKDINC

VCC

DONCGND

7

4

8

0.1

C26

R14 1.0K

CN1

3

2

(54)

I C16-2 uLN2003

215

RC

32

28

29

P61

P62

P14

P15

R52

5

<F>

C15

<1/10W>

1

1

(55)

14

3

I C16-3 uLN2003

I C18-6 uLN2003

11

6

I C1-28

48

P63

P64

P16

P17

R1

100K

100K

0.1

R2 10K

2

ROOM TEMPERATURE

6

(56)

I C1-47

I C1-46

47

P66

P65

P20

P21

<1/10W>

<1/10W>

<F>

1%

<1/10W>

5

P67

P22

4

(57)

I C18-1 uLN2003

16

1

724546

P71

P70

P23

P24

I C1-76

L6

UP / DOWN

3

2

(58)

I C18-3 uLN2003

I C18-2 uLN2003

15

314

2

P72

P73

P26

P25

I C1-75

I C1-74

<1/10W>

R13 1.0K

BLm18

<BD102>

(36)

CN3

PIPE TEMPERATURE

I C18-4 uLN2003

13

4

P74

P27

I C1-73

REMOTE CONTROL COMMUNICATION

1

1

9

12V

I C16

CN5

1

12V

I C18

IC7

12V

(59)

I C16-6 uLN2003

I C16-5 uLN2003

I C16-4 uLN2003

12

611

5

413

I C1-3

CS

3

65

66

27

26

6768697071

17

P76

P77

P75

P141

P140

P130

P120

P41

P40

P42

P30

P32

P31

P33

654

7

64636261605958571412131516

I C1-6

I C1-4

I C1-64

I C1-63

8

12V

I C5-2

0.1

<F>

C16

<1/10W>

R6 49.9K

L7

BLm18

<BD102>

2

(37)

3

8

899

8

I C16-7 uLN2003

710

34

P143

P142

P43

P44

IC5

0.1

C23

5V

BA10393F

6

12V

P144

P45

<F>

7

-

5

R21 15.4K

+

12V

R95 10K <1/10W>

5V

BEN

5V

1

373635

P145

AVREF

P46

P47

4

R30

10K

I C5-1

1%

<1/10W>

12VD2

12V

BUZZER

I C18-7

R97 10K <1/10W>

R98 10K <1/10W>

R7 100K

VPP

8

11

10

IC

GND

REGC

X1

X2

RST*

3

2

(75)

RESET

<1/10W>

1

BA10393F

-

+

3

2

<1/10W>

R22 28K

D3

D1F60

(86)

CN6

REMOTE CONTROL UNIT

BZ

BZ1

10

uLN2003

7

12345

(31)

R99 10K <1/10W>

<1/10W>

2

30

AGND

EGND

XT1

XT2

1

X1

R54 10K

5V

16 1

1%

3

DAN217U

JP5

(87)

2

1

<RED>

R109 10K

(72)

TEST

(33)

(32)

I C1-4

8.38MHz

<CSTLS>

<1/10W>

I C1-28

I C7-1

<1/4W>

R31 390

10K

R17

5V

(89)

(88)

3

4

<WHITE>

<BLACK>

R9

C31

2

1

<1/10W>

CN13

(35)

(34)

R90 - R93

330 <1/10W> x 4

C47 0.1 <F>

C59 0.1 <F>

C48 0.1 <F>

C49 0.1 <F>

5V

R110 10K

RESET

0R0

0.1

<F>

C34

2

1

VDD

GND

VOUT

IC11

BD4842

NC

NC

4

53

0.1

<F>

I C1-73

uLN2003

1%

R20 1.0K <1/10W>

<1/10W>

12V

R4 10K

<1/10W>

5

JP SWITCHING

5V

CN11

<1/10W>

R101 330

7

(65)

<1/10W>

L3

MANUAL AUTO SWITCH

6

(66)

LED

R57 330 <1/10W>

BLm11

CN14

(43)

3

<A601>

OUTSIDE COMMUNICATION

5V

5

(67)

R60 330 <1/10W>

OUTSIDE COMMUNICATION

INPUT

2

1

C51

(44)

1

I C25

4

32

PS2561L-1-V

(101)

<1/10W>

R33 1.0K

(73)

<1/10W>

R32 10K

(74)

3

2

4

(68)

(69)

(70)

(71)

I C1-3

R58 330 <1/10W>

R59 330 <1/10W>

I C1-40

1

R113 47

0.01

C28

SW1

C40

C53

1000P

<1/10W>

<B>

L3

0.01

C41

+

BLm11

R88 1.0K

<B>

0.01

100/

<R>

R102 390 <1/10W>

R104 10K <1/10W>

<A601>

<1/10W>

I C1-64

<B>

16V

LED FOR INDICATOR & REMOTE CONTROL UNIT

12V

R94 330

I C7-2

THE SWITCH FOR OPENING

AND CLOSING OF A PANEL

THE CIRCUIT FOR FAN MOTERS

R51 1.0K

15V

I C10

PS2501L-1

5V

I C22

<1/10W>

15

2

uLN2003

I C1-63

5V

R115

DC FAN

340V

C36

100/36V

1%

<1/4W>

4

<KD / KE>

1

<1/10W>

R43 330

OUTSIDE COMMUNICATION

CN16

2

(42)

(45)

3

4

2

1

PS2561L-1-V

1

K10

G5N-1A

4

I C1-39

10K

<1/10W>

(79)

1

2

CN10

6

543

(14)

(15)

C1

0.1

A

+

820

R55

3

2

Q6

3

2

I C1-43

OUTPUT

1

(46)

3

2

C55

0.01

<1/10W>

R116 1.0K

(78)

CN20

A

<HCP>

15V

15V

A

<1/4W>

R47 10K

5V

DTC124EUA

1

<B>

2

1

(13)

<1/10W>

(100)

(11)

(12)

<1/4W>

R63 6.8K

R56

4.7K
<1/10W>

1

2

I C14

<KD / KE>

PS2501L-1

4

3

R44

1.0K
<1/10W>

C30

<R>

1000P

2006.02.21 6

Models :
ASU24CL
ASU24RL

INDICATOR PCB ASSY

K05CY-0500HSE-D0

5V

D201

SLR-325

D202

SLR-325

D203

SLR-325

I C201

GP1UM261R

2

VCC
OUT

1

GND

3

C201

0.1

<F>

5V

R201

<1/4W>

+ C202

5V

CN201

1

2

3

4

5

6

7

47

47/

10V

2006.02.21 7

C. M.

COMPRESSOR

EMI FILTER

BLACK

WHITE

RED

UL1015 AWG14 x 3

TM305

TM304

TM303

21

WHITE

CN303

B2B-XH-AM

PEAK LOAD CURRENT

10

9

8

W13

VIOLET

CN301

B

WHITE

B10B-XASK-1

I PM CONTROL

B

W307

W306

7

56

4

23

1

B

-

+

D100

D25XB60

B

W17

W16

TM102

TM101

EMI FILTER

UL1015 AWG14 RED

UL1015 AWG14 BLACK

K05CZ-0500HUE-TR0

TR PCB ASSY ( I P M )

B

TM301

UL1015

AWG14

YELLOW

B

K05DG-0500HUE-P0

CAPACITOR PCB ASSY

UL1015

UL1015

AWG14

AWG14

TM302

BLUE

W12

WHITE

B

B

UL1015

AWG14

1

UL1007 AWG24 BROWN

2

UL1007 AWG24 RED

C42

WHITE

B2B-XH

PEAK LOAD CURRENT

10

UL1007 AWG24 WHITE

9

UL1007 AWG24 BLACK

8

UL1007 AWG24 GRAY

7

UL1007 AWG24 PURPLE

UL1007 AWG24 BLUE

56

UL1007 AWG24 GREEN

4

UL1007 AWG24 YELLOW

UL1007 AWG24 ORANGE

UL1007 AWG24 RED

UL1007 AWG24 RED

UL1007 AWG24 BROWN

CN40

23

WHITE

I PM CONTROL

B10B-XASK-1

11

UL1015 AWG20 WHITE

4

UL1015 AWG20 BLACK

03VH/SIN 1015 L250

CN200

DC VOLT I N

WHITE

B2P4-VH-B-M

EZ-0050AHUE

INVERTER ASSY

B

UL1015

AWG14

BLACK

EMI FILTER

UL1015

AWG14

WHITE

UL1015

AWG14

BLACK

N

W1

F200

UL1015

L

UL1015 AWG14 ORANGE

W28

TLC 25A - 250V, B

AWG20

RED

B

B

W2

UL1015

3

AWG20

BLACK

UL1015

2

UL1015 AWG14 BROWN

B

W29

K05CW-0500HUE-FL0

POWER SUPPLY PCB

F100

B

B

W18

W17

EMI FILTER

AWG20

WHITE

1

FSL 3.15A - 250V (EM)

UL1015

AWG16

GREEN

EMI FILTER x 2

N1

N2

IO

1

432

56

1

UL1007 AWG24 BROWN

UL1007 AWG24 RED

UL1007 AWG24 ORANGE

432

CN400

ACTPM CONTROL

WHITE

UL1007 AWG24 YELLOW

CHOKE COIL

-

+

UL1015

AWG14

WHITE

L2

UL1015

AWG14

L1

WHITE

L = 0.3MH 30A

I C 404

ACTPM

P

SACT32010F1

B4B-XASK-1-A

CN100

1

2

1

UL1007 AWG24 WHITE

2

UL1007 AWG24 WHITE

CN1

BLACK

POWER RELAY CONTROL

B2B-XH-AM BLK

B

W21EARTH

BB

W9

CT I N / OUT

B

B

W19 W20

W3

UL1015 AWG14 GRAY

TM600

UL1015 AWG14 BLACK

UL1015 AWG20 WHITE

UL1015 AWG20 BLACK

TM601

31

YELLOW

CN110

B2P3-VH-B-Y

CT I N / OUT

AC VOLT I N

SERIAL

RED

B

W4

K05CU-0507HUE-C1

CONTROLLER PCB ASSY

DC FAN MOTOR

CN700

B6B-XARK-1-A

B5P6-VH-B-L

WHITE

5

6

234

WHITE

BROWN

YELLOW

BLACK

F. M .

RED

5

6

234

1

WHITE

YELLOW

ORANGE

BLUE

BROWN

RED

M

CN801

1

RED

CN500

B2P3-VH-B-C

WHITE

3

1

BLACK

BLACK

CN60

B2B-XH-AM YEL

1

BROWN

YELLOW

2

BROWN

CN61

B2B-XH-AM RED

121

BLACK

BLACK

RED

CN62

B2B-XAEK-1-A

2

BLUE

BLUE

BLUE

OUTDOOR PCB CIRCUIT DIAGRAM

Models :

AOU24CL

AOU24RL

POWER SOURCE

AC220 - 240V

50 / 60Hz

INDOOR UNIT

4-WAYVALVE

DC FAN MOTOR

EXPANSION VALVE

OUTDOOR TEMP. THERMISTOR

DISCHARGE TEMP. THERMISTOR

PIPE TEMP. THERMISTOR

2006.02.21 8

K05CU-0507HUE-C1

CONTROLLER PCB ASSY

C64

10K

C64

10K

<1/10W>

<1/10W>

Models :

AOU24CL

AOU24RL

2006.02.21 9

K05CW-0500HUE-FL0

POWER SUPPLY PCB

Models :

AOU24CL

AOU24RL

2006.02.21 10

K05CZ-0500HUE-TR0

TR PCB ASSY ( I P M )

Models :

AOU24CL

AOU24RL

2006.02.21 11

Models :
AOU24CL
AOU24RL

CAPACITOR PCB ASSY

K05DG-0500HUE-P0

W12

WHITE

W13

VIOLET

YELLOW

B

BLUE

B

SMOOTHING CIRCUIT

B

R200
220K

<2W>

C200

++

660/

450V

C201

660/

450V

+

C202

660/

450V

B

P

N

W7

YELLOW

B

W8

BLUE

B

POWER_G

2006.02.21 12

ERROR CONTENTS

Error

Operation
LED

Display

Timer LED

Error

Serial signal error Normal

Indoor unit thermistor error 2 flash

Outdoor unit thermistor error 3 flash

2 flash

3 flash

4 flash

5 flash

8 flash

2 flash

3 flash

2 flash

3 flash

4 flash

8 flash

2 flash

3 flash

Serial signal (reverse) error, at operation start up

Serial signal (reverse) error, during oeration

Serial signal (forward) error, at operation start up

Serial signal (forward) error, during operation

Wired remote controller error

Indoor temperature thermistor open / short

Heat exchanger middle thermistor open / short

Discharge thermistor open / short

Heat exchanger thermistor open

Outdoor temperature thermistor open / short

Compressor temperature thermistor open / short

Forced automatic SW welded

Main relay welded

Indoor unit control error 4 flash

Outdoor unit control error

Indoor fan motor error 6 flash

Refrigerant cycle error 7 flash

5 flash

4 flash

7 flash

8 flash

2 flash

3 flash

5 flash

6 flash

2 flash

3 flash

2 flash

3 flash

5 flash

2 flash

Power interruption error

VDD permanent stop protection

reverse VDD permanent stop protection

Current trip error

CT abnormal

Compressor location detection error

Outdoor unit fan drive system abnormal

Abnormal lock

Abnormal rotation

Discharge Temperature abnormal

Cooling high pressure abnormal rise

Pressure switch trouble

Active filter voltage trouble (second time)

Optional function error

Model error

2006.01.20 13

8 flash

Blinking Blinking

3 flash

4 flash

Active filter voltage trouble (first time)

PFC circuit error

Model error

DISASSEMBLY ILLUSTRATION

Models : ASU24CL, ASU24RL

5

5

4

1

6

4

2

2

2006.02.10 14

Models : ASU24CL, ASU24RL

33

29

30

34

28

8

36

27

32

2006.02.22 15

31

9

35

Models : ASU24CL, ASU24RL

10

26

2006.05.31 16

23

22

Models : ASU24CL, ASU24RL

42

38

37

39

53

41

40

52

55

46

48

47

2006.05.31

17

Models : AOU24CL, AOU24RL

14

12

13

33

24

11

37

32

38

10

50

8

5

22

53

21

54

51

39

52

20

35

3

1

2

18

34

6

36

16

2006.03.20 18

7

4

Models : AOU24CL, AOU24RL

44

43

40

46

45

55

41

42

25

2006.03.20 19

PARTS LIST

INDOOR UNIT

Part No

Ref No Descriprion Ord. Q'ty

ASU24CL ASU24RL

1 Front Panel Total Assy 9315335036 9315335029

2 Intake Grille Assy 9315336026 9315336026

4 Air Filter 9315014016 9315014016

5 Clamper Grille 9306755010 9306755010

6 Receiver Window 9315010018 9315010018

8 Crossflow Fan Assy 9315024015 9315024015

9 Bearing C Assy 9306628017 9306628017

10 Casing Assy 9315331014 9315331014

22 R and L Louver 9311997016 9311997016

23 Spacer B 9312441013 9312441013

26 Drain Cap 9367677009 9367677009

27 Evaporator Assy 9315347015 9315347015

28 Evaporator Assy B 9315349019 9315349019

29 Connection Pipe Assy 9315354013 9315354013

30 Distributor Assy 9315350015 9315350015

31 Water Seal 9315251015 9315251015

32 Evaporater Holder R 9314994012 9314994012

33 Evaporater Holder L 9314995019 9314995019

34 Rear Bracket 9315022011 9315022011

35 Filter Guide 9315013019 9315013019

36 Filter Guard 9315411013 9315411013

37 Controller PCB Assy 9707090086 9707090079

38 Control Box 9314996023 9314996023

39 Control Cover 9314997020 9314997020

40 Motor Case 9314998027 9314998027

41 Terminal Earth 9315028013 9315028013

42 DC Brushless Motor 9602163014 9602163014

46 Motor, Step 9900384029 9900384029

47 Motor, Step 9900384036 9900384036

48 Motor, Step 9900139063 9900139063

52 Gear A 9309994003 9309994003

53 Terminal 9900385019 9900385019

55

- Remote Controller 9315027160 9315027153

Indicator PCB Assy 9707210019 9707210019

2006.05.31 20

OUTDOOR UNIT

Ref
No

10 99001630134-Way Valve
11 9900056018Pulse Motor Valve
12 9315303011Condenser Assy B
13 9315302014Condenser Assy 9315302014
14 313728262708Thermistor Spring A
16 9309909014Propeller Fan
18 9313432027Motor Bracket Assy
20 9315296023Base Assy

21 93154140143-Way Valve Assy
22 93130620192-Way Valve Assy
24 9307271014Cord Clamp
25 9703874024Terminal, 5 Pin
32 9900057039Expansion Valve Coil
33 9703516108Outdoor Temp. Thermistor
34 9602110018DC Brushless Motor
35 9315297013

Descriprion

1 9309230064Top Panel Assy
2 9309228016Seal (Top)
3 9314809019Cabinet Sub Assy
4 9308884015Blow Grill
5 9309236028Cabinet Right Assy
6 9308885012Fan Ring
7 9308880017Grip
8 9309237049Switch Cover Assy

AOU24CL AOU24RL

9309230064
9309228016
9314809019
9308884015
9309236028
9308885012
9308880017
9309237049

9900163013
9900056018
9315303011

313728262708
9309909014
9313432027
9315296023

9315414014
9313062019
9307271014
9703874024
9900057039
9703516108
9602110018
9315297013Compressor Assy

Part No

Ord.
Q'ty

36
37
38
39 9970055010Solenoid
40 9707121124Controller PCB Assy
41 9707128055Power Supply PCB Assy
42 9707129052Capacitor PCB Assy
43

44
45
46
50
51
52
53
54
55

Emblem Rear
Heat Exchanger Thermistor
Discharge Thermistor

TR PCB Assy (IPM)

ACTPM
Fuse Holder
Fuse
Pulse Motor Valve Assy
Joint Pipe (3WV) Assy
Pipe (Cond Outlet) Assy
Pipe (Cond Inlet) Assy
Discharge Pipe Assy
Chock Coil

9315261014
9704220059
9704219091
9970055010
9707121124
9707128055
9707129052
9707125054

9703457012
0500158072
0600086039
9315310019
9315308016
9315304018
9315305015
9315312013
9900366018

9315261014
9704220059
9704219091

9707125054

9703457012
0500158072
0600086039
9315310019
9315308016
9315304018
9315305015
9315312013
9900366018

2006.06.09

21

STANDARD
ACCESSORIES

Name and Shape Part No.

Wall hook bracket

9315023018

Remote control unit

Remote control
unit holder

Battery (penlight)

Cloth tape

Tapping screw (big)

9315027160

(for cooling only)

9315027153

(for heat and cool)

9305642045

0600185534

9310519004

0700076046

Tapping screw (small)

Air cleaning filter

Air cleaning filter
frame

Drain pipe

2006.02.13

0700019036

9312153060

9311925071

9368568009

9301102000

(for heat and cool)

22

Parts Orders

Parts maybe ordered from

FUJITSU GENERAL AMERICA, INC
353 RTE 46 W.

FAIRFIELD NJ 07004 PHONE [phone]

FAX [phone]

Specify complete Parts No., Model & Descripation to ensure
correct parts are supplied.

0512G2976

FUJITSU GENERAL AMERICA, INC.
353 ROUTE 46W., FAIRFIELD, N.J. 07004