General AUG18A, AUG18ABAB, AOG18ANCKL, AUG18R, AUG18RBAB Service Manual

SPLIT TYPE
AIR CONDITIONER

CASSETTE

Models Indoor unit Outdoor unit

AUG18ABAB AOG18ANCKL
AUY18ABAB AOY18ANCKL
AUT18ABAB AOT18ANCKL

AUG18RBAB AOG18RNCKL
AUY18RBAB AOY18RNCKL
AUT18RBAB AOT18RNCKL

type (50Hz)

2004.03.05

CONTENTS

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

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

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

REFRIGERANT SYSTEM DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . 7

ERROR CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

INDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM . . . . . 9

DISASSEMBLY ILLUSTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

SPECIFICATIONS

TYPE COOL COOL & HEAT

INDOOR UNIT

OUTDOOR UNIT

COOLING CAPACITY (kW) 4.95 - 5.10 5.10 4.85 - 5.00 5.00

HEATING CAPACITY (kW) --------- --------- 5 .3 0 - 5 . 45 5.45

ELECTRICAL DATA

POWER SOURCE (V) 220 - 240V

FREQUENCY (Hz) 50

RUNNING CURRENT (A)

INPUT WATTS (kW)

E.E.R. (kW/kW)

STARTING CURRENT (A) 42

MOISTURE REMOVAL ( /hr) 2.1

AIR CIRCULATION-Hi (m3/hr) 650

COOLING 8.5 - 8.0 8.0 8.5 - 8.0 8.0

HEATING --------- --------- 9.0 - 8.5 8.5

COOLING 1.80 - 1.90 1.83 1.75 - 1.85 1.80

HEATING --------- --------- 1 . 85 - 1. 9 5 1.95

COOLING 2.55- 2.68 2.79 2.77 - 2.70 2.78

HEATING --------- --------- 2 . 86 - 2. 7 9 2.79

AUG18ABAB AUT18ABAB AUG18RBAB AUT18RBAB

AUY18ABAB AUY18RBAB

AOG18ANCKL AOT18ANCKL AOG18RNCKL AOT18RNCKL

AOY18ANCKL AOY18RNCKL

COMPRESSOR

TYPE Hermetic type

CODE

REFRIGERANT R-22 (g) 1,150 1,500

2JS318D5BA02

220 - 240V 50Hz

FAN MOTOR

POWER SOURCE (V) 240

TYPE MFA-18GTT MFA-18GTBT

INDOOR UNIT

OUTDOOR UNIT

HI-SPEED (r.p.m.) 820

MED-SPEED (r.p.m.) 740

LO-SPEED (r.p.m.) 620

TYPE MFB-24JTBT

HI / LO (r.p.m.) 800 / 400

DIMENSIONS

INDOOR UNIT 235 x 580 x 580 +70

OUTDOOR UNIT H x W x D (mm) 650 x 830 x 320

GRILLE 35 x 650 x 650

2004.03.05

WEIGHT

INDOOR UNIT 23 / 18

OUTDOOR UNIT GROSS / NET (kg) 55 / 51 60 / 56

GRILLE 4.3 / 2.2

- 1 -

AUG18ABAB AUT18ABAB AUG18RBAB AUT18RBAB

MODELS

DISCHARGE
PRESSURE

SUCTION
PRESSURE

DISCHARGE
TEMP.

REFRIG. PIPE LENGTH m 7.5

DISCHARGE

REFRIGERANT CIRCUIT

AIR TEMP.

INDOOR
ENTERING
AIR TEMP.

OUTDOOR
ENTERING

CONDITION

AIR TEMP.

PIPE DIA.
SIZE

CONNECTION METHOD Flare

PIPING

BETWEEN

REFRIGERANT TYPE R-22

kg/cm2G

kg/cm2G

DB/WB

DB/WB

LIQUID

GAS 12.7

HEIGHT

PIPE LENGTH

COOLING 21.0 21.0 22.0 20.0

HEATING --------- --------- --------- 22.0

COOLING 5.5 5.0 4.6 4.8

HEATING --------- --------- --------- 4 . 2

COOLING 73 75 81 85

HEATING --------- --------- --------- 7 5

COOLING 13

HEATING --------- --------- --------- 4 4

COOLING 27.0 / 19.0

HEATING 20.0 / ----

COOLING 35.0 / 24.0

HEATING 7.0 / 6.0

mm

m

AUY18ABAB AUY18RBAB

AOG18ANCKL AOT18ANCKL AOG18RNCKL AOT18RNCKL

AOY18ANCKL AOY18RNCKL

6.35

Max. 8

Max. 20

REFRIGERANT CHARGE

PIPE LENGTH

FULL CHARGE

ADDITIONAL CHARGE

NOISE LEVEL

INDOOR UNIT

OUTDOOR UNIT

7.5 m

10 m

15 m

20 m

HIGH

MED

LOW

1,150 g

1,188 g

1,263 g

1,338 g

15 g / m

44 dB

41 dB

37 dB

52 dB

1,500 g

1,575 g

1,725 g

1,875 g

30 g / m

Cool 44 dB / Heat 45 dB

Cool 41 dB / Heat 41 dB

Cool 37 dB / Heat 37 dB

Cool 52 dB / Heat 53 dB

2006.09.22

- 2 -

OUTLINE AND DIMENSIONS

20

235

66

250

440

580650

( 650) (Grille measurement)

650

(Hanging bolt position)

400

(Hanging bolt position)

606

650

580 66

440

35

600

(Ceiling opening measurement)

250

60

86

Drain pipe (I.D. 32)

54

46

131

111

47

INDOOR UNIT

(unit : mm)

2004.03.05

- 3 -

OUTDOOR UNIT

350

830

650

12

Air flow

Bottom

603

343

(unit : mm)

- 4 -

2004.03.05

CIRCUIT DIAGRAM

THERMISTOR (PIPE TEMP.)

THERMISTOR (ROOM TEMP.)

RED

CONTROL BOARD

STEP

MOTOR

FAN MOTOR
CAPACITOR

WHITE

BROWN

RED

ORANGE

YELLOW

WHITE

BLACK

GRAY

GRAY

GRAY

GREEN/YELLOW

BLUE

DISPLAY BOARD

PURPLE

WHITE

WHITE

GREEN

CN13

CN10

1

2

21

3

4 5

12

CN4

12

CN6 CN2

21 13

CN19

CN15

1

BLACK

BLACK

BLACK

BLACK

87654321

CN201

M

CN1

BLACK

BLACK

BLACK

N

L

BLACK

BLACK

WHITE

WHITE

YELLOW

YELLOW

WHITE

M

FAN

MOTOR

DRAIN PUMP

MOTOR

FLOAT
SWITCH

FILTER BOARD

TERMINAL

CN5

123456

412536

FM

345

1

(L)

2

(N)

Use T3.15A-250V

Fuse on F101

3

CN712CN8

12

3

1

13

BROWN

RED

ORANGE

YELLOW

WHITE

BLUE

GRAY

PURPLE

TO OUTDOOR UNIT

12345

87654321

87654321

Models :

AUG18ABAB / AOG18ANCKL
AUY18ABAB / AOY18ANCKL
AUT18ABAB / AOT18ANCKL

INDOOR UNIT

2004.03.05

OUTDOOR UNIT

1

4

MAIN RELAY

TO POWER SUPPLY

INTERNAL
OVERLOAD
PROTECTOR

BLACK

COMPRESSOR

R

C

6

5

S

BLACK

WHITE

COMPRESSOR
CAPACITOR

RED

BROWN

BROWN

WHITE

BLACK

WHITE

LN1(L) 2(N) 3

- 5 -

WHITE

RED

4 5

BLUE

TERMINAL

WHITE

FAN MOTOR
CAPACITOR

FUSE 5A

THERMAL
PROTECTOR

BLACK

FAN MOTOR

BLACK

TO INDOOR UNIT

Models :

THERMISTOR (PIPE TEMP.)

THERMISTOR (ROOM TEMP.)

RED

CONTROL BOARD

STEP

MOTOR

FAN MOTOR
CAPACITOR

WHITE

BROWN

RED

BROWN

RED

ORANGE

YELLOW

YELLOW

WHITE

BLACK

GRAY

GRAY

GRAY

GREEN/YELLOW

BLUE

BLUE

DISPLAY BOARD

PURPLE

PINK

GREEN

CN13

CN10

1

2

21

3

4 5

12

CN6 CN2

21 2 13

CN19

CN15

1

BLACK

BLACK

BLACK

BLACK

87654321

CN201

M

CN1

BLACK

BLACK

N

L

BLACK

BLACK

WHITE

WHITE

YELLOW

YELLOW

M

FAN

MOTOR

DRAIN PUMP

MOTOR

FLOAT

SWITCH

FILTER BOARD

TERMINAL

CN5

123456

412536978

FM

Use T3.15A-250V

Fuse on F101

3

CN712CN8

12

3

1

13

BROWN

RED

ORANGE

YELLOW

WHITE

BLUE

GRAY

PURPLE

3456

1

(L)

2

(N)

TO OUTDOOR UNIT

12345

87654321

87654321

AUG18RBAB / AOG18RNCKL
AUY18RBAB / AOY18RNCKL
AUT18RBAB / AOT18RNCKL

INDOOR UNIT

OUTDOOR UNIT

INTERNAL
OVERLOAD
PROTECTOR

BLACK

1

4

MAIN RELAY

TO POWER SUPPLY

C

COMPRESSOR

6

5

R

S

BLACK

WHITE

COMPRESSOR
CAPACITOR

RED

BROWN

BROWN

WHITE

BLACK

WHITE

LN1(L) 2(N) 3

RED

WHITE

4 56

-6 -

BLUE

FAN MOTOR
CAPACITOR

BLACK

FUSE 5A

THERMAL
PROTECTOR

WHITE

BLACK

TERMINAL

FAN MOTOR

BLACK

4-WAY
VALVE COIL

SV

BLACK

TO INDOOR UNIT

2004.03.05

REFRIGERANT SYSTEM DIAGRAM

Refrigerant pipe

12.7mm(1/2")

Refrigerant pipe

6.53mm(1/4")

Capillary tube

Charging valve

Compressor

Dryer

OUTDOOR UNITINDOOR UNIT

Condenser

Evaporator

Capillary tube

Strainer

Refrigerant pipe

12.7mm(1/2")

Refrigerant pipe

6.35mm(1/4")

Charging valve

Cooling Check valve

Heating

: Flare coupling

4-Way
valve

Compressor

Capillary tube

Dryer

Strainer

OUTDOOR UNITINDOOR UNIT

Condenser

Evaporator

Accumulator

Muffler

Models :

AUG18ABAB / AOG18ANCKL
AUY18ABAB / AOY18ANCKL
AUT18ABAB / AOT18ANCKL

Models :

AUG18RBAB / AOG18RNCKL
AUY18RBAB / AOY18RNCKL
AUT18RBAB / AOT18RNCKL

2004.03.05

- 7 -