General ASG18AJ, ASG18ABAJ, AOG18ANAKH, ASG18RJ, ASG18RBAJ Service Manual
...
SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
type
Models Indoor unit Outdoor unit
ASG18ABAJ AOG18ANAKH
AOG18ANAK
ASG18RBAJ AOG18RNAKH
ASG24ABAJ AOG24ANAKH
AOG24ANAK
ASG24RBAJ AOG24RNAKH
ASG30RBAJ AOG30RMADH
2004.10.19
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
OUTLINE AND DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
REFRIGERANT SYSTEM DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . 4
ERROR CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
INDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM . . . . 14
DISASSEMBLY ILLUSTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
STANDARD ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
SPECIFICATIONS
INDOOR UNIT ASG18ABAJ ASG18RBAJ ASG24ABAJ ASG24RBAJ ASG30RBAJ
OUTDOOR UNIT AOG18ANAKH AOG18RNAKH AOG24ANAKH AOG24RNAKH AOG30RMADH
AOG18ANAK AOG24ANAK
TYPE COOL COOL & HEAT COOL COOL & HEAT COOL & HEAT
COOLING CAPACITY
HEATING CAPACITY ----- 5.50 - 5.60 ----- 7 . 6 0 - 7 . 8 0 8. 5 5 - 8 . 8 0
(kW)
ELECTRICAL DATA
POWER SOURCE (V) 220 - 240
FREQUENCY (Hz) 50
RUNNING
CURRENT
INPUT
WATTS
E.E.R. (kW/kW)
MOISTURE REMOVAL ( /hr) 2.0 2.5 3.0
AIR CIRCULATION (m3/hr) 750 - 840 880 - 950 1,020 - 1,050
COOLING 8.4 - 8.4 8.5 - 8.5 12.2 - 12.8 12.0 - 12.2 13.7 - 13.5
(A)
HEATING ----- 7.8 - 7.8 ----- 1 2 . 0 - 1 2 . 4 14 . 5 - 1 4 . 4
COOLING 1.84 - 1.89 1.83 - 1.91 2.53 - 2.67 2.53 - 2.56 2.93 - 3.05
(kW)
HEATING ----- 1 . 7 0 - 1 . 7 5 ----- 2.53 - 2.68 3 . 1 3 - 3 . 2 5
COOLING 2.93 - 2.91 2.90 - 2.83 2.69 - 2.58 2.61 - 2.56 2.66 - 2.62
HEATING ----- 3 . 2 4 - 3 . 2 0 ----- 3.00 - 2.91 2 . 7 3 - 2 . 7 1
COMPRESSOR
TYPE Hermetic type, Deposit electrode condenser, 2 poles, Single phase, Induction motor, Recipro
CODE 2JS318D5DA02 2JS438D5DA02 NHT52VAAT
REFRIGERANT R-22 (g) 1,300 1,900 1,950 2,200 2,450
5.40 - 5.50 5.30 - 5.40 6.80 - 6.90 6.60 - 6.80 7.80 - 8.00
FAN MOTOR
POWER SOURCE (V) 220 - 240
TYPE MFA-30HTT
INDOOR
UNIT
OUTDOOR
UNIT
HI-SPEED ( r.p.m. ) 990 - 1,080 1,170 - 1,230 1,290 - 1,320
MED-SPEED ( r.p.m. ) 840 - 940 970 - 1,070 1,140 - 1,210
LO-SPEED ( r.p.m. ) 710 - 810 830 - 930 930 - 1.030
TYPE MFB-24JTT MFB-24JTBT MFB-24JTT MFB-24JTBT MFB-30NTAT
HI-SPEED ( r.p.m. ) 800 730
LO-SPEED ( r.p.m. ) ----- 4 00 ----- 4 00 45 0
DIMENSIONS
INDOOR UNIT H x W x D 320 x 1,120 x 220
OUTDOOR UNIT (mm) 650 x 830 x 320 900 x 900 x 350
WEIGHT
INDOOR UNIT GROSS / NET 22 / 16
OUTDOOR UNIT (kg) 55 / 51 60 / 56 63 / 59 64 / 60 92 / 80
REFRIGERANT CHARGE (R-22)
PIPE LENGTH 7.5 m 10 m 15 m 20 m 25 m Additional
MODELS (25 ft) (33 ft) (49 ft) (66 ft) (82 ft) refrigerant
ASG18ABAJ
ASG18RBAJ
FULL CHARGE
AMOUNT (68.8 oz) (70.6oz) (74.1 oz) (77.6 oz) (over 7.5 m)
ASG24ABAJ
ASG24RBAJ
ASG30RBAJ
1,300 g 1,350 g 1,450 g 1,550 g
(45.9 oz) (47.6 oz) (51.2 oz) (54.7 oz) (over 7.5 m)
1,900 g 2,000 g 2,200 g 2,400 g
(67.0 oz) (70.6 oz) (77.6 oz) (84.7 oz) (over 7.5 m)
1,950 g 2,000 g 2,100 g 2,200 g
2,200 g 2,300 g 2,500 g 2,700 g
(77.6 oz) (81.1 oz) (88.2 oz) (95.2 oz) (over 7.5 m)
2,450 g 2,550 g 2,750 g 2,950 g 3,150 g 40 g (1.41 oz)/3.3 ft (1 m)
(86.4 oz) (90.0 oz) (97.0 oz) (104.1 oz) (111.1 oz) (over 7.5 m)
-----
-----
-----
-----
20 g (0.71 oz)/3.3 ft (1 m)
40 g (1.41 oz)/3.3 ft (1 m)
20 g (0.71 oz)/3.3 ft (1 m)
40 g (1.41 oz)/3.3 ft (1 m)
- 1 -
2004.10.19
INDOOR UNIT
OUTLINE AND DIMENSIONS
Models : ASG18ABAJ, ASG18RBAJ
ASG24ABAJ, ASG24RBAJ
ASG30RBAJ
321
1,120
Unit : mm
224
626
711
711
626
2004.10.19
- 2 -
350
830
650
12
Air flow
Bottom
603
343
OUTDOOR UNIT
Models : AOG18ANAKH, AOG18ANAK, AOG18RNAKH
AOG24ANAKH, AOG24ANAK, AOG24RNAKH
Model : AOG30RMADH
350
900
900
930
333
19
804
- 3 -
2004.10.19
Refrigerant pipe
15.88mm(5/8")
Refrigerant pipe
9.52mm(3/8")
Capillary
tube
Pressure
switch
Compressor
3-Way
valve
2-Way
valve
Dryer
Thermistor
(Pipe)
OUTDOOR UNIT
Distributor
INDOOR UNIT
Evaporator
Condenser
Refrigerant pipe
15.88mm(5/8")
Refrigerant pipe
9.52mm(3/8")
Capillary
tube
Compressor
3-Way
valve
2-Way
valve
Dryer
Thermistor
(Pipe)
OUTDOOR UNIT
Distributor
INDOOR UNIT
Evaporator
Condenser
REFRIGERANT SYSTEM DIAGRAM
Models : ASG18ABAJ / AOG18ANAKH
Models : ASG18ABAJ / AOG18ANAK
2004.10.19
- 4 -
Models : ASG18RBAJ / AOG18RNAKH
Refrigerant pipe
15.88mm(5/8")
Refrigerant pipe
9.52mm(3/8")
Capillary tube
Capillary
tube
Compressor
4-Way
valve
3-Way
valve
2-Way
valve
Dryer
Check valve
Strainer
Accumulator
Thermistor
(Pipe)
Muffler
OUTDOOR UNIT
Distributor
INDOOR UNIT
Evaporator
Cooling
Heating
Condenser
Refrigerant pipe
15.88mm(5/8")
Refrigerant pipe
9.52mm(3/8")
Capillary
tube
Pressure
switch
Compressor
3-Way
valve
2-Way
valve
Dryer
Thermistor
(Pipe)
OUTDOOR UNIT
Distributor
INDOOR UNIT
Evaporator
Condenser
Accumulator
Models : ASG24ABAJ / AOG24ANAKH
- 5 -
2004.10.19
Models : ASG24ABAJ / AOG24ANAK
Refrigerant pipe
15.88mm(5/8")
Refrigerant pipe
9.52mm(3/8")
Capillary tube
Capillary
tube
Compressor
4-Way
valve
3-Way
valve
2-Way
valve
Dryer
Check valve
Strainer
Accumulator
Thermistor
(Pipe)
Muffler
OUTDOOR UNIT
Distributor
INDOOR UNIT
Evaporator
Cooling
Heating
Condenser
Distributor
Refrigerant pipe
15.88mm(5/8")
Refrigerant pipe
9.52mm(3/8")
Capillary
tube
Compressor
3-Way
valve
2-Way
valve
Dryer
Thermistor
(Pipe)
OUTDOOR UNIT
Distributor
INDOOR UNIT
Evaporator
Condenser
Models : ASG24RBAJ / AOG24RNAKH
2004.10.19
- 6 -
Models : ASG30RBAJ / AOG30RMADH
Refrigerant pipe
15.88mm(5/8")
Refrigerant pipe
9.52mm(3/8")
Capillary tube
Capillary
tube
Compressor
4-Way
valve
Pressure
check valve
3-Way
valve
2-Way
valve
Dryer
Check valveStrainer
Accumulator
Thermistor
(Pipe)
OUTDOOR UNIT
Distributor
INDOOR UNIT
Evaporator
Cooling
Heating
Condenser
Distributor
- 7 -
2004.10.19
Error
The OPERATION, TIMER and SWING lamps operate as follows according to the error contents.
Error display
OPERATION TIMER SWING
(RED) (GREEN) (ORANGE)
Error contents
Indoor unit circuit board error
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 wire short circuited
Indoor unit fan error
2 times
2 times
3 times
3 times
6 times
:
Fast flashing
:
Slow flashing
:
Off
ERROR CONTENTS
2004.10.19
- 8 -
Thermistor resistance values <Indoor unit side>
1) Room temperature thermistor (THIA)
Room
temperature 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30
(°C)
Resistance
value 33.6 29.5 25.9 22.8 20.2 17.9 15.8 14.1 12.5 11.2 10.0 9.0 8.0
(kΩ)
Room
temperature 32.5 35 37.5 40 42.5 45 47.5 50
(°C)
Resistance
value 7.2 6.5 5.9 5.3 4.8 4.3 3.9 3.6
(kΩ)
2) Indoor heat exchanger temperature thermistor (THHM, THHI)
Heat exchanger
temperature 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30
(°C)
Resistance
value 176.0 153.5 134.2 117.6 103.3 91.0 80.3 71.0 62.9 55.9 49.7 44.3 39.6
(kΩ)
Heat exchanger
temperature 32.5 35 37.5 40 42.5 45 47.5 50 52.5 55 57.5 60
(°C)
Resistance
value 35.4 31.7 28.5 25.6 23.1 20.8 18.8 17.1 15.5 14.1 12.8 11.6
(kΩ)
- 9 -
2004.10.19
CIRCUIT DIAGRAM
WHITE
WHITE
WHITE
BROWN
BROWN
WHITE
C
R
S
WHITE
BLACK
BLACK
BLACK
BLACK
BLACKBLACK
RED
RED
(PIPE TEMP.)
GRAY
GRAY
WHITE
GREEN
GRAY
GRAY
GRAY
FM
(ROOM TEMP.)
(RIGHT/ LEFT)
(UP/DOWN)
BLACK
BLACK
WHITE
WHITE
WHITE
BLACK
BLUE
RED
RED
BLACK
GRAY
GRAY
GRAY
GRAY
YELLOW
PINK
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
PURPLE
PURPLE
PURPLE
GRAY
GRAY
GRAY
GRAY
GRAY
(DIFFUSER)
GRAY
GRAY
GRAY
GRAY
RED
PINK
M
M
M
GREEN/
YELLOW
L
N
5
6
4
1
OUTDOOR UNIT
INDOOR UNIT
FAN
MOTOR
FUSE 5A
TERMINAL
FAN MOTOR
CAPACITOR
PRESSURE
SWITCH
COMPRESSOR
CAPACITOR
COMPRESSOR
FAN MOTOR
CAPACITOR
THERMISTOR
FAN
MOTOR
TERMINAL
THERMISTOR
STEP
MOTOR
STEP
MOTOR
STEP
MOTOR
TRANSFORMER
CONTROL BOARD
DISPLAY BOARD
CN4
CN5
CN11CN10CN7CN6
CN3
CN9CN2 CN1
CN201
THERMAL
FUSE 102
(L) (N)LN 312
THERMAL
PROTECTOR
INTERNAL
OVERLOAD
PROTECTOR
2
2
1
1
21
3
3
4
4
5
5
6
6
7
7
2
2
1
1
3
3
22113
3
221
1
776
6
221133445
5
7
7
8
8
8
8
6
6
221133445
5
22113
3
221133445
5
221
1
889910
10
776
6
221133445
5
221
1
221133445
5
221133445
5
221133445
5
(N)
123
TO POWER SOURCE
FUSE T 3.15A 250V
MAIN RELAY
Models : ASG18ABAJ / AOG18ANAKH
ASG24ABAJ / AOG24ANAKH
2004.10.19
- 10 -
WHITE
WHITE
WHITE
BROWN
BROWN
WHITE
C
R
S
WHITE
BLACK
BLACK
BLACK
BLACK
BLACK
RED
RED
(PIPE TEMP.)
GRAY
GRAY
WHITE
GREEN
GRAY
GRAY
GRAY
FM
(ROOM TEMP.)
(RIGHT/ LEFT)
(UP/DOWN)
BLACK
BLACK
WHITE
WHITE
WHITE
BLACK
BLUE
RED
RED
BLACK
GRAY
GRAY
GRAY
GRAY
YELLOW
PINK
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
PURPLE
PURPLE
PURPLE
GRAY
GRAY
GRAY
GRAY
GRAY
(DIFFUSER)
GRAY
GRAY
GRAY
GRAY
RED
PINK
M
M
M
GREEN/
YELLOW
L
N
5
6
4
1
OUTDOOR UNIT
INDOOR UNIT
FAN
MOTOR
FUSE 5A
TERMINAL
FAN MOTOR
CAPACITOR
COMPRESSOR
CAPACITOR
COMPRESSOR
FAN MOTOR
CAPACITOR
THERMISTOR
FAN
MOTOR
TERMINAL
THERMISTOR
STEP
MOTOR
STEP
MOTOR
STEP
MOTOR
TRANSFORMER
CONTROL BOARD
DISPLAY BOARD
CN4
CN5
CN11CN10CN7CN6
CN3
CN9CN2 CN1
CN201
THERMAL
FUSE 102
(L) (N)LN 312
THERMAL
PROTECTOR
INTERNAL
OVERLOAD
PROTECTOR
2
2
1
1
21
3
3
4
4
5
5
6
6
7
7
2
2
1
1
3
3
22113
3
221
1
776
6
221133445
5
7
7
8
8
8
8
6
6
221133445
5
22113
3
221133445
5
221
1
889910
10
776
6
221133445
5
221
1
221133445
5
221133445
5
221133445
5
(N)
123
TO POWER SOURCE
FUSE T 3.15A 250V
MAIN RELAY
Models : ASG18ABAJ / AOG18ANAK
ASG24ABAJ / AOG24ANAK
- 11 -
2004.10.19
C
R
S
WHITE
BLACK
WHITE
WHITE
BLACK
BLACK
BLACK
BLACK
SV
BLACK
RED
BLUE
BLACK
BROWN
BROWN
RED
(PIPE TEMP.)
GRAY
GRAY
WHITE
BROWN
GREEN
GRAY
GRAY
GRAY
FM
(ROOM TEMP.)
(RIGHT/ LEFT)
(UP/DOWN)
BLACK
BLACK
WHITE
WHITE
WHITE
BLACK
BLUE
RED
BLUE
RED
RED
BLACK
GRAY
GRAY
GRAY
GRAY
YELLOW
PINK
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
PURPLE
PURPLE
PURPLE
GRAY
GRAY
GRAY
GRAY
GRAY
(DIFFUSER)
GRAY
GRAY
GRAY
GRAY
RED
PINK
4 5 6
M
M
M
GREEN/
YELLOW
L
N
5
6
4
1
FUSE
5A
TERMINAL
COMPRESSOR
CAPACITOR
COMPRESSOR
FAN MOTOR
CAPACITOR
THERMISTOR
FAN
MOTOR
TERMINAL
THERMISTOR
STEP
MOTOR
STEP
MOTOR
STEP
MOTOR
TRANSFORMER
CONTROL BOARD
DISPLAY BOARD
CN4
CN5
CN11CN10CN7CN6
CN3
CN9CN2 CN1
CN201
THERMAL
FUSE 102
(L) (N)
LN 312
INTERNAL
OVERLOAD
PROTECTOR
2
2
1
1
21
3
3
4
4
5
5
6
6
7
7
2
2
1
1
3
3
22113
3
221
1
776
6
221133445
5
7
7
8
8
8
8
6
6
221133445
5
22113
3
221133445
5
221
1
889910
10
776
6
221133445
5
221
1
221133445
5
221133445
5
221133445
5
(N)
123
TO POWER SOURCE
FUSE T 3.15A 250V
4-WAY
VALVE COIL
456
OUTDOOR UNIT
INDOOR UNIT
MAIN RELAY
FAN
MOTOR
THERMAL
PROTECTOR
FAN MOTOR
CAPACITOR
WHITE
WHITE
Models :
ASG18RBAJ / AOG18RNAKH
ASG24RBAJ / AOG24RNAKH
2004.10.19
- 12 -
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