General ASH24L, ASH24LBA-W, AOH24LMAL, ASH30L, ASH30LBA-W Service Manual

SPLIT TYPE
ROOM AIR CONDITIONER

W A L L M O U N T E D

Models Indoor unit Outdoor unit

ASH24LBA-W AOH24LMAL

ASH30LBA-W AOH30LMAL

ty p e

CONTENTS

SPECIFICATIONS

OUTLINE AND DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 3

REFRIGERANT SYSTEM DIAGRAM . . . . . . . . . . . . . . . . . . . . 4

ERROR CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

CIRCUIT DIAGRAM
INDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM . . 7
OUTDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM 8

DISASSEMBLY ILLUSTRATION . . . . . . . . . . . . . . . . . . . . . . . 12

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

STANDARD ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

SPECIFICATIONS

TYPE COOL & HEAT

INDOOR UNIT ASH30LBA-W

OUTDOOR UNIT AOH30LMAL

COOLING CAPACITY

HEATING CAPACITY 8.5

(kW)

(kW)

COOL & HEAT

ASH24LBA-W

AOH24LMAL

6.8

7.0

8.0

ELECTRICAL DATA

POWER SOURCE (V) 230

FREQUENCY (Hz) 50

RUNNING CURRENT (A)

INPUT WATTS (kW)

E.E.R. (kW/kW)

MOISTURE REMOVAL ( /hr) 3.6

AIR CIRCULATION-Hi (m3/hr) 1,020

COOLING 13.3

HEATING 12.3

COOLING 3.04

HEATING 2.81

COOLING 2.63

HEATING 3.02

9.3

8.5

2.12

1.94

3.21

3.61

3.0

1,020

COMPRESSOR

TYPE

Hermetic type, Inverter, 4 poles,

DC motor, Rotary

DISCRIMINATION

REFRIGERANT R410A (g)

FAN MOTOR

POWER SOURCE (V)

DISCRIMINATION

HI-SPEED (r.p.m.)

INDOOR UNIT MED-SPEED (r.p.m.)

LO-SPEED (r.p.m.)

QUIET (r.p.m.)

OUTDOOR UNIT

DISCRIMINATION

DIMENSIONS

INDOOR UNIT H x W x D (mm)

OUTDOOR UNIT

H x W x D (mm)

(r.p.m.)

TNB220FPCM9

1,850

230

MFA-30HTT

1,290

1,100

870

730

MFB-30NTAT

730

320 x 1,120 x 220

900 x 900 x 350

WEIGHT

INDOOR UNIT GROSS / NET (kg)

GROSS / NET (kg)OUTDOOR UNIT

22 / 16

78 / 70

12004.08.12

TYPE

INDOOR UNIT

OUTDOOR UNIT

NOISE LEVEL

INDOOR UNIT

OUTDOOR UNIT

HI-SPEED

MED-SPEED

LO-SPEED

QUIET-SPEED

(dB)

(dB)

(dB)

(dB)

(dB)

COOL & HEAT COOL & HEAT

ASH24LBA-W ASH30LBA-W

AOH24LMAL AOH30LMAL

COOL 47 / HEAT 45

COOL 41 / HEAT 41

COOL 36 / HEAT 36

COOL 32 / HEAT 32

COOL 52 / HEAT 53

REFRIGERANT CHARGE

PIPE LENGTH

FULL CHARGE AMOUNT

Additional refrigerant

(R410A)

10 m

(33 ft.)

15 m

(49 ft.)

20 m

(66 ft.)

25 m

(82 ft.)

1,850 g (65.1 oz)

2,100 g (73.9 oz)

2,350 g (82.7 oz)

2,600 g (91.7 oz)

50 g / m (1.76 oz / 3.3 ft.) (over 10 m)

22004.08.12

OUTLINE AND DIMENSIONS

80448

48

350

333 ~ 352

373

11

900

900

30

Packed Valve
(Liquid)

9.52

Packed Valve
(Gas)

15.88

Models : ASH24LBA-W

ASH30LBA-W

Unit : mm

321

Models : AOH24LMAL

AOH30LMAL

1,120

224

626

711

626

711

Unit : mm

32004.06.29

REFRIGERANT SYSTEM DIAGRAM

Models : ASH24LBA-W / AOH24LMAL

ASH30LBA-W / AOH30LMAL

OUTDOOR UNIT

HEAT EXCHANGER

HEAT COOL

COMPRESSOR

4-WAY VALVE

ACCUMULATOR

3-WAY
VALVE

CAPILLARY
TUBE

RECEIVER

HEAT EXCHANGER

EXPANSION
VALVE

STRAINER

2-WAY
VALVE

2004.06.29

INDOOR UNIT

HEAT EXCHANGER

4

ERROR CONTENTS

The OPERATION, TIMER and SWING lamps operate
as follows according to the error contents.

Error contents

Indoor unit circuit board error

OPERATION TIMER SWING

Error display

(RED) (GREEN) (ORANGE)

Indoor unit room temperature sensor wire opened

Indoor unit room temperature sensor wire short circuited

Indoor unit piping sensor wire opened

Indoor unit piping sensor short circuited

Serial error

Outdoor unit circuit board error or miswiring
between outdoor unit and indoor unit

Indoor unit fan error

Outdoor unit piping sensor

Outdoor unit outdoor temperature sensor error

Outdoor unit discharge temperature sensor error

Outdoor unit compressor temperature sensor error

IPM error

Current transformer error

2 times

2 times

3 times

3 times

5 times

5 times

6 times

3 times

4 times

5 times

9 times

10 times

11 times

Active filter module error

Compressor location error

Outdoor fan motor error

Fast flashing

:

Slow flashing

:

DIP switch

12 times

13 times

14 times

Off

:

DIP-SW

1 2

OFF OFF

ON OFF

OFF ON OFF 12.0A

ON ON

3

OFF 16.5A

OFF 14.5A

OFF 9.5A

Current

(Max.)

Model

AOH30LMAL

AOH24LMAL

52004.06.29

Models : ASH24LBA-W / AOH24LMAL

ASH30LBA-W / AOH30LMAL

CIRCUIT DIAGRAM

OUTDOOR UNIT

GREEN/
YELLOW

EMI FILTER

1T

CN2

DISPLAY BOARD

CN201

TRANSFORMER

FAN MOTOR
CAPACITOR

WHITE

YELLOW

FM

RED

BLUE

2211334455667

GRAY

8

8

GRAY

7

7

GRAY

6

6

GRAY

5

5

GRAY

4

4

GRAY

3

3

GRAY

2

2

PURPLE

1

1

PURPLE

PURPLE

RED

RED

INDOOR UNIT

WHITE

22113

3

BLACK

FAN
MOTOR

GREEN

WHITE

7

9
8
7
6
5
4
3
2
1

3
2
1

2
1

CN4CN5CN9CN7

9
8
7
6
5
4
3

CONTROL BOARD

2
1

CN10CN16 CN1

3
2
1

2
1

E1

W1

W2 W6

WHITE

BLACK

123

(N)(L)

GRAY

2

2

GRAY

1

1

BLACK

2

2

BLACK

1

1

GRAY

5

5

GRAY

4

4

GRAY

3

3

GRAY

2

2

PINK

1

1

GRAY

10

10

GRAY

9

9

GRAY

8

8

GRAY

7

7

GRAY

6

6

GRAY

5

5

GRAY

4

4

GRAY

3

3

GRAY

2

2

PINK

1

1

FUSE T 3. 15A 250V

RED

THERMISTOR

(PIPE TEMP.)

THERMISTOR

(ROOM TEMP.)

5

5

4

4

M

3

3

2

2

1

1

5

5

4

4

M

3

3

2

2

1

1

5

5

4

4

3

3

M

2

2

1

1

3
2

CN17

1

THERMAL
FUSE 102

TERMINAL

STEPPING
MOTOR

(RIGHT/ LEFT)

STEPPING
MOTOR

(UP/DOWN)

STEPPING
MOTOR

(DIFFUSER)

3
2
1

GRAY

RED

COMPRESSOR

U

W

BLACK BLACK

CONNECTOR

WHITE

V

WHITE

VWU

CN 301

CN 302

CN 303

PRINTED CIRCUIT BOARD (TRANSISTOR)

P

N

ACTIVE
FILTER
MODULE

L2

N1

RED

1
2
3
4
5
6
7
8
9

10

1
2
3
4
5
6

1
2
3
4
5
6
7

1
2
3
4
5
6

L1

P

WHITE

WHITE

CHOKE

COIL

BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
VIOLET
GRAY
BLACK

ORANGE
YELLOW

RED
BROWN

GRAY
VIOLET

GREEN
BLUE

BROWN
RED
ORANGE
YELLOW

WHITE
VIOLET

THERMISTOR

(OUTDOOR)

THERMISTOR

(PIPE)

THERMISTOR

(DISCHARGE)

1
2
3
4
5

CN 14

6
7
8
9

1
2
3

CN 15

4
5
6

1
2
3
4

CN 16

5
6
7

1
2

CN 407

3
4

W105

BROWN

TM101

TM104
TM105

TM2

BROWN

W10 W21

EMI FILTER 2T

BLACK

GRAY

-

RED

+

BLUE
YELLOW

TM103
TM102

TM107
TM110

BLUE

BLACK

BROWN

12

CN 21

12 12

CN 22 CN 23

CN 30

FUSE

F2 T 3.15A 250V

PRINTED
CIRCUIT
BOARD
(MAIN)

CN 27

CN 42 CN 35 CN 34

12 123 123

BLUE

YELLOW

VIOLET

WHITE

W20 W27 W25 W23 W22

WHITE

FUSE

F4 T 5A 250V

PRINTED CIRCUIT
BOARD (POWER)

BLACK

WHITE

BLACK

25A

FUSE

W102

W103

TM1

BLACK

WHITE

1
2
3

1
2
3
4
5
6
7

1
2
3
4
5
6

W8

W9

W3W2W1W33W31

GREEN

EARTH

BLUE

BLUE

CONNECTOR

BLUE

RED

WHITE

BLACK

BLACK

BLACK

RED
BROWN
BLUE
ORANGE
YELLOW
WHITE

ORANGE

ORANGE

POSISTOR

4WV

RED

SOLENOID
COIL

FAN

FM

MOTOR

FAN
CAPACITOR

ELECTRIC

EV

VALVE COIL

TERMINAL

(L) (N)

2

LN31

TO POWER SOURCE

62004.06.29