General AWHZ24L, AWHZ24LBC, AOHZ24LBT Service Manual

SPLIT TYPE ROOM AIR CONDITIONER

CEILING WALL

INVERTER

Models

Indoor unit Outdoor unit

AWHZ24LBC AOHZ24LBT

type

CONTENTS

SPECIFICATIONS OUTLINE AND DIMENSIONS REFRIGERANT SYSTEM DIAGRAM CIRCUIT DIAGRAM INDOOR PCB CIRCUIT DIAGRAM OUTDOOR PCB CIRCUIT DIAGRAM ERROR CONTENTS DISASSEMBLY ILLUSTRATION PARTS LIST

STANDARD ACCESSORIES . . . . . . . . . . 25

. . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . 1

. . . . . . . . . . 2

. . . . 4

. . . . . . . . . . . . . . . . . . 5

. . . . . . 7

. . . 10

. . . . . . . . . . . . . . . .

. . . . . . .

15 16 23

SPECIFICATIONS

TYPE

INDOOR UNIT

OUTDOOR UNIT

COOLING CAPACITY

Cooling and heating inverter

AWHZ24LBC

AOHZ24LBT

7.1 kW

COMPRESSOR

TYPE

DISCRIMINATION

REFRIGERANT

Hermetic type, DC Inverter,

Twin rotary

5KD240XAD21

R410A 1,900 g

HEATING CAPACITY

8.5 kW

ELECTRICAL DATA

POWER SUPPLY

RUNNING CURRENT

INPUT WATTS

E.E.R.

MOISTURE REMOVAL

AIR CIRCULATION HIGH

COOLING

HEATING

COOLING

HEATING

COOLING

HEATING

COOLING

HEATING

230 V 50 Hz

9.7 A

10.3 A

2.21 kW

2.35 kW

3.21 kW/kW

3.62 kW/kW

3.0 L/hr

880 m3/hr

980 m3/hr

FAN MOTOR

POWER SOURCE 230 V

HIGH2 1,700 r.p.m. / 1,850 r.p.m.

HIGH SPEED

INDOOR UNIT ( cool / heat )

OUTDOOR UNIT ( cool / heat )

MED SPEED

LOW SPEED

QUIET

SUPER QUIET

1,500 r.p.m. / 1,700 r.p.m.

1,370 r.p.m. / 1,540 r.p.m.

1,250 r.p.m. / 1,390 r.p.m.

1,130 r.p.m. / 1,260 r.p.m.

1,030 r.p.m. / 1,120 r.p.m.

850 r.p.m. / 900 r.p.m.

REFRIGERANT CHARGE (R410A)

Pipe Length

FULL CHARGE

ADDITIONAL CHARGE

MAX PIPE LENGTH

15 m

20 m

25 m

30 m

1,900 g

2,000 g

2,100 g

2,200 g

20 g/m

30 m

DIMENSIONS and WEIGHT

INDOOR UNIT

OUTDOOR UNIT

INDOOR UNIT Gross / Net

H x W x D

Gross / NetOUTDOOR UNIT 70 kg / 62 kg

250 x 899 x 298 mm

830 x 900 x 330 mm

17.5 kg / 14 kg

NOISE LEVEL

HIGH2 49 dB / 49 dB

HIGH SPEED

INDOOR UNIT ( cool / heat )

OUTDOOR UNIT ( cool / heat )

MED SPEED

LOW SPEED

QUIET

SUPER QUIET

HIGH2 53 dB / 54 dB

HIGH SPEED

Note : Noise was measured in accordance with JIS standards, Japan.

"HIGH2" means when ability measurement.

2006.10.31 1

47 dB / 47 dB

43 dB / 43 dB

40 dB / 40 dB

36 dB / 36 dB

32 dB / 32 dB

53 dB / 54 dB

DIMENSIONS

INDOOR UNIT (Unit : mm)

300

899

298

250

40

170

2006.10.20 2

OUTDOOR UNIT (unit : mm)

77900

33031 12

830

21

9

400

650

Air Flow

370

2006.10.18 3

147

170

99

196

REFRIGERANT SYSTEM DIAGRAM

Heat exchanger

3-Way valve (Large)

Muffler

( INDOOR )

3-Way valve (Small)

Pressure switch

Compressor

Sub-accumulator

Cooling Heating

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

4-Way valve

Heat exchanger

( OUTDOOR )

Strainer

Expansion valve

Strainer

2006.10.18 4

CIRCUIT DIAGRAM

INDOOR UNIT

AIR FILTER (RIGHT)

THERMAL FUSE 102

SW (RIGHT)

M

THERMAL FUSE 102

3

1

AIR FILTER (LEFT)

M

WHITE

RED

ORANGE

YELLOW

BROWN

1 2 3 4 5 1 2 1 2

3 4 5

SW (LEFT)

3

1

WHITE

RED

1 2

INDICATOR PCB

CN208

3 4 5

678

1 2

CONNECTOR (RED)

LOUVER U

CONNECTOR (WHITE)

LOUVER Z

CONNECTOR (WHITE)

LOUVER (RIGHT-LEFT)

CONNECTOR (RED)

DIFFUSER

BROWN

1

RED

M

2

ORANGE

3

YELLOW

4

GREEN

5

BLUE

1

PURPLE

2

M

GRAY

3

WHITE

4

BLACK

5

RED

1

WHITE

M

2

WHITE

3

WHITE

4

WHITE

5

RED

1

WHITE

2

M

WHITE

3

WHITE

4

WHITE

5

FAN MOTOR

F M

10 11 12 13 14 15 16 17 18 19 20

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20

YELLOW

WHITE

BLACK

BLUE

RED

WHITE

RED

WHITE

BROWN

RED

ORANGE

1 2

CN206

3 4 5 6 7 8 9

10

1 2 3 4 5 6 7 8 9

10

CN205

1 2 3 4 5

CN201

WHITE

CN11

CN15

CN9

CN16

10

WHITE

9

WHITE

8

WHITE

7

WHITE

6

WHITE

5

4

WHITE

3

WHITE

2

RED

1

RED

1

WHITE

2

WHITE

3

WHITE

4 5

WHITE

6

WHITE

7

WHITE

8

WHITE

9

WHITE

10

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18

RED

WHITE

1

WHITE

2

WHITE

3

WHITE

4

WHITE

5

WHITE

6

WHITE

7 8

WHITE

9

10

RED

11

WHITE

12 13

WHITE

14

WHITE

15

WHITE

16

WHITE

17

WHITE

18

WHITE

1 2 3 4 5 6 7 8

9 10 11

1

2

3

4

5

6

7

8

9 10 11

1

2

3

CN4

4

5

6

TEST

1 2 3 4 5

CN3

CONTROLLER PCB

RED

YELLOW

1 1

CN200

WHITE

THERMAL FUSE 102

TERMINAL

WHITE

RED

2

1 2 3 4 5

21 2 3 4 5

CN203

CONNECTOR PCB

TM1

N

OUTDOOR UNIT

WHITE

TM4

BLACK

L

6

RED

3

WHITE

RED

1 2 3 4

WHITE

RED

1 2 3 4 567 1 2 3 4 567

CN202 CN204

TM2

WHITE

8 8

ROOM TEMP. THERMISTOR

PIPE TEMP. THERMISTOR

CN6

CN7

1 2 1 2

BLACK

1 2 3 4 5

RED

WHITE

1 2 3 4 1 2 3 4

RED

BLUE

WHITE

BLACK

UV-LED UNIT

CN12CN17

1 2 3

RED

WHITE

1 2

3

1 2 3

CN210

RECEIVER PCB

W3

2006.10.18 5

OUTDOOR UNIT

V

BROWN

RED

W305

U

CN40CN42

321 321

ORANGE

321 321

87654 87654

YELLOW

GREEN

BLUE

PURPLE

GRAY

87654 87654

W306

W307

BLUE

W302

YELLOW

W301

BLACK

W17

RED

W16

BROWN

TM102

ORANGE

TM101

RED RED

WHITE

BLACK BLACK

CONNECTOR

BLACK

CONNECTOR

21 21

BROWN

RED

21 21

CN303 CN301

I P M PCB

W304

W303

W

109 109

WHITE

109 109

YELLOW

COMPRESSOR

C M

R

CN200

321

4

321

4

BLACK

WHITE

CAPACITOR PCB

BLUE

W8

PURPLE

W13

W7

W12

CHOKE COIL

S

C

WHITE

POSISTOR

CN400

BROWN

I O

N2

N1

P

+

321

4

321

4

RED

ORANGE

YELLOW

321 321

CN11

ACTPM

L2 L1

WHITE

ORANGE

HIGH PRESSUR SWITCH

RED

2

CN90

CN64

CN62

CN61

CONTROLLER PCB

( MAIN PCB )

654 654

CN60

CN500

CN700

CN801

TM601

TM600

21 21

WHITE

1 2

W29

CN100

W28 W25

POWER SUPPLY PCB

W26

CN110CN1

GRAY

BLACK

W21 W20

W9

WHITE

W19

321 321

BLACK

W3

W17 W18 W2

W1

RED

1

BROWN

212

BROWN

1

BLUE

212

BLUE

1

BLACK

2

BLACK

1

BROWN

2

BROWN

121

BLACK

3

2

BLACK

1

WHITE

6

YELLOW

5

ORANGE

4

BLUE

3

BROWN

2

RED

1

BROWN

7

YELLOW

6

WHITE

5

BLACK

4

3

2

RED

1

RED

W4

GREEN BLACK

WHITE WHITE

BLACK

FUSE 250V 25A

TERMINAL

COMPRESSOR TEMP. THERMISTOR

OUTDOOR TEMP. THERMISTOR

PIPE TEMP. THERMISTOR

DISCHARGE TEMP. THERMISTOR

4-WAY VALVE

4WV

EXPANSION VALVE

PMV

FAN MOTOR

F M

BLACK

3 L

1 2

N

POWER SOURCE

TO INDOOR UNIT

2006.10.18 6

INDOOR PCB CIRCUIT DIAGRAM

CONTROL UNIT : EZ-0060BHSE

UV-LED UNIT

BLUE

WHITE

BLACK

RED

F. M.

FAN MOTOR

NH5

RMH-4

RED

BLACK

WHITE

YELLOW

BLUE

RED

WHITE

TEST

CN17 JB-5

1

2

3

4

5

CN3

1

2

3

4

5

CN4 S5 (6-5) B-XARK

6

5

4

3

2

1

POWER SOURCE

AC230V 50Hz

OUTDOOR UNIT

CONTROLLER PCB ASSY K05DS-0600HSE-C1

CN11

JC-10

10

WHITE

9

WHITE

8

WHITE

7

WHITE

6

WHITE

5

4

3

WHITE

2

WHITE

RED

1

CN9

JC-10

CN15 JZ-11

CN16 JZ-11

RED

1

WHITE

2

WHITE

3

WHITE

4

5

6

WHITE

7

WHITE

8

9

WHITE

10

WHITE

RED

1

2

WHITE

3

WHITE

4

WHITE

5

WHITE

6

WHITE

7

WHITE

8

9

WHITE

10

11

WHITE

RED

1

WHITE

2

WHITE

3

4

WHITE

5

WHITE

6

WHITE

7

WHITE

8

WHITE

9

WHITE

10

WHITE

11

TERMINAL

N

THERMAL

FUSE 102

CN7

2P-SCN

CN6

2P-SAN

1

BLACK

2

BLACK

1

BLACK

2

BLACK

PIPE TEMPERATURE THERMISTOR

ROOM TEMPERATURE THERMISTOR

L

3

WHITE

RED

TM2

TM1

22007

CN206 JB-10

RJW-18

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

RJW-20

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

RED

WHITE

RED

WHITE

BROWN

RED

ORANGE

YELLOW

GREEN

BLUE

PURPLE

GRAY

WHITE

BLACK

RED

WHITE

RED

WHITE

CN205 JB-10

ZHR-5

1

2

3

4

5

6

7

8

9

10

1

2

3

4

5

6

7

8

9

10

M

BLACK

TM4 22007

CONNECTOR PCB

K05DS-0500HSE-CN0

LOUVER-U ( UP / DOWN )

LOUVER-Z ( UP / DOWN )

LOUVER ( RIGHT / LEFT )

DIFFUSER

B3B-PASK

CN201

B5B-XASK

CN200

B2B-XASK

CN203

JB-6

CN202

JB-4

CN204

S8B-PASK

CN12

WHITE

BROWN

RED

ORANGE

YELLOW

RED

WHITE

RED

WHITE

RED

WHITE

RED

WHITE

RED

WHITE

ZHR-5

1

2

3

1

2

3

4

5

1

2

1

2

3

4

5

6

1

2

3

4

1

2

3

4

5

6

7

8

M

LIMIT SWITCH-R

JB-8

1

2

3

4

5

6

7

8

CN208

CN210 JB-3

1

RECEIVER PCB ASSY

2

3

K05DS-0500HSE-S0

CLEAN FILTER-R

B5B-XASK

B2B-XASK

WHITE

BROWN

RED

ORANGE

YELLOW

RED

WHITE

ZHR-5

INDICATOR PCB ASSY

K04DU-0500HSE-D0

M

LIMIT SWITCH-L

CLEAN FILTER-L

2006.10.18 7

INDOOR UNIT CONTROLLER PCB ASSEMBLY K05DS-0600HSE-C1

280V

L1

9mH

4 3

1

W3

2

R15

100K

<1/10W>

RESET I C

R1

2.2

GS I B460L

2 1

C21

0.1 <F>

VDD OUT

I C2

D1

GND

D3

20V

1

3

C5 0.01

<ECQE>

R6 47

<1/2W>

C32 47P

D4 D1FL20U

R3 5.6K

+

C12

1SS355

330/ 25V

47/35V

Q2 2SA1037AK <Q>

D15

C6

+

R5 100K

C L X

R19 15K

1NH42

R4

270

1 2 3

C22

0.22 <B>

2

+

C10 47/35V

POWER SWITCH

1

2

4

C4

3

+

100/ 420V

A

TOP244

6

D

5

F

S

4

I C5

R18 12K

5V

C20

3

NC

0.1

4

<F>

POWER SOURCE AC230V 50Hz

POWER SUPPLY CIRCUIT

K1-4

TM1

BUZZER

CN17

5

4

3

2

1

FH1

F1

VA1 470V

<TNR>

12V

R71 10K

12V

FL4

I C8-10I C8-14

FH2

BZ1

B Z

R212

R205

R206

R213

180 <1/4W> x 4

Q24 DTC124EUA

3

2

1

14

10

0.33

3

7

C1

I C18-3

I C16-7

C70 4700P <KH>

C69 4700P <KH>

SSB11V-R13090A

UV - LED

I C16-6

11

UP / DOWN 1

CN15

UP / DOWN 2

LOUVER (RIGHT / LEFT)

CN16

DIFFUSER

CN9

CN11

12V

1

2

3

4

5

6

7

8

9

10

11

12V

13

1

2

3

4

5

6

7

8

9

10

11

10

9

8

7

6

5

4

3

2

1

10

9

8

7

6

5

4

3

2

1

14

15

16

13

14

15

16

R200

R201

R202

R203

R204 R211

1.0K <1/10W> x 10

FL3

FLS1

FLS2

6

12

5

4

13

14

3

10

7

6

11

5

12

13 4

I C15-4

4

I C15-3

3

I C15-2

2

I C15-1

1

I C14-4

4

I C14-3

3

I C14-2

2

I C14-1

1

INDICATION LED

R207

10

R208

11

R209

12

R210

13

14

12V

I C16-5

I C16-4

I C16-3

I C18-7

I C18-6

I C18-5

I C18-4

7

6

5

4

3

I C22-7

I C22-6

I C22-5

I C22-4

I C22-3

FLS1

DTC143EUA

2

FLS2

FILTER CLEAN 1

FILTER CLEAN 2

2

R77 10K

<1/10W>

2

Q11

3

Q12 DTC143EUA

1

X1

8.00MHz

5V

R36 10K <1/10W>

3

1

3

76

77

78

79

80

81

82

TAUX

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

5V

R78 10K <1/10W>

FILTER LIMIT SWITCH

R94

1.0K

<1/10W>

R80

1.0K

<1/10W>

*RST PA0

X1A

X0A

GND

X0

X1

VCC

P00

P01

P02

P03

P04

P05

P06

P07

P10

P11

P12

P13

P14

P15

P16

P17

P20

P21

75

P22

C7 1000P <R>

C8 1000P <R>

TP97

FAN

66

P87

I C18-2

2

I C18-1

1

I C16-2

2

I C16-1

1

I C15-7

7

I C15-6

I C14-7

7

I C14-6

636465

P85 P84 P83 P82 P81

P86

I C 1

P33P32GND

P34

12

13

1110

62

P37

P36P35

14

15

TEST TIMER

TEST CLK

TEST OUT TEST I N

P80 P77

P40

16

17

73

74

72

P94P93 P92

P96P95

67

68697071

P90

P91

MB90438LSPFV-G-423-BNDE1

P23

321

P31

P26P25P24

P30P27

4

98

765

15

16

15

16

10

11

6

10

11

6

5556

5758596061

P76 P75 P74 P73

VCCP44P43P42P41

21

201918

5V

CLKTTXD

TRXD

R30 10K <1/10W> R29 10K <1/10W> R28 10K <1/10W> R27 10K <1/10W>

53

54

P72

P71

P45

P47P46

23

22

TEST

C27 - C30 1000P <F> x 4

52

AGND

P70

HST*

MD2

MD1

MD0

GND

AVRL

AVRH

AVCC

51

P57

P56

P67

P66

P65

P64

P63

P62

P61

P60

P55

P54

P53

P52

P51

P50 C

2524

C37

0.1 <F>

5V

R9 10K

TEST TIMER

5V

TEST I N

TEST OUT

TEST CLK

FAN

<1/10W>

1

50

49

48

47

46

45

44

43

42

41

40

39

38 37

36

35

34

33

32

31

30

29

28

27

26

I C22-1

C33

1000P

<R>

1

2

3

4

5

CN3

2006.10.20 8

C65

0.01

<KH>

T1

MY064

6 5 4 3 2 1

D16 D1FL20U

4

3

I C20

PS2561-1

MODE2

MODE0

R35 330 <1/10W>

16

R43 1.0K

<1/10W>

D7 D1FL20U

C13

+

1000/

25V

8

9

10

1

2

5V

FAN MOTOR CONTROL

R41 10K

I C6

TL431 I LP

I C9

PS2561-1

1

2 3

5V

PS2561-1

4

3

R11

1.8K

4

I C12

C

A

15V

R34 1.0K

<1/4W>

R7 150

C14

<B>

3

REF

2

C34

0.1

<F>

R16 100K

<1/10W>

8

R21 390 <1/10W>

20V

R8 1.0K

A

H I C FOR SERIAL COMMUNICATION

GK-LV3011E

27

R2 1.0K <1/2W>

5V

I C8-14

R20 10K <1/10W>

3

1

2SC2411K

R95

4.7K

<1/10W>

2

Q3 DTC124EUA

DAN217U

Q19

3

<Y>

2

1

R96 10K

<1/10W>

DTC124EUA

D10

I C 19

I C8-10

12V

1

78M15

1

101418

6

Q4

2

3

THERMAL FUSE

12V

D6 D1FL20U

C15

+

R13

330/

200K (1%)

R14 47K (1%)

25V

R59 10K <1/10W>

R63 10K

<1/10W>

5V

R12

0.1

5.6K

1

R17 10K <1/10W>

7V

I C3

TA4805AS

1

O

G

2

C44

0.1

<F>

C16

JM4

0.1

<F>

AUTO RESTART

REMOTE CONTROL SIGNAL INPUT

5V

VCC

GND

DO NC

R60 47 <1/10W>

5V

8 4 7

C55

0.1

<F>

C45 1000P <R>

I C13

1

CS

2

SK

3

D I NC

6 5

5V

3I

C17

+

330/ 25V

C19

C18

+

10/

25V

0.1

<F>

C2

0.1

<F>

5V

R25 10K <1/10W>

JM1

5V

AUTO RESTART

1

2

3

CN12

TM2

C23

0.01 <B>

POWER RELAY

EEPROM

I C17

I

2

G

3

1

3

O

DAN202K

1

K1-4

+

D13

3

15V

C66 100/ 25V

(B-1)

2

C67

0.1

<F>

3 2

5 4

5 4 3 2 1

R22 390 <1/10W>

C24

0.01 <B>

TM4

1

5V

R33 820

<1/4W>

A A

ROOM TEMP. & PIPE TEMP. THERMISTOR

123

CN202

1

2 3

R53 10K <1/10W>

(1%)

R54 49.9K

<1/10W>

(1%)

CN200

4

CN203

2

1

2

10

R50 1.0K

C35

<1/10W>

0.1

<F>

R26 10K

<1/10W>

5V

REMOTE CONTROL SIGNAL SELECT

JM2

C36

0.1

<F>

R51 1.0K

<1/10W>

CN204

C31

+

100/

25V

280V

4

6

8

7

10

8

9

23

5

1

567

4

FL7

BLM21

<A102>

FL1

BL02Rn1

3

4 5 6

9

8

1

2

7 6 5

CN6

1

2

1

CN201

2

4 3

ROOM TEMP.

CN7

3 4

5

2

1

PIPE TEMP.

15V

R39

15V

4.7K

1

<1/10W>

2

R37 6.8K

<1/4W>

A

MANUAL AUTO SWITCH

6

5

4

3

2

1

R92 1.0K

<1/10W>

CN4

5V

R82 10K <1/10W>

SW1

CN205

CONNECTOR PCB ASSY

K05DS-0500HSE-CN0

I C200

GP1UM261R

RECEIVER PCB ASSY

K05DS-0500HSE-S0

R220 47 <1/10W>

2

VCC

1

OUT

3

C201

+

GND

47/ 10V

CN206

C200

0.1

<F>

CN210

1

2

3