Page 1
INVERTER SPLIT TYPE
AIR CONDITIONER (50Hz)
DUCT
Models
Indoor unit Outdoor unit
ARH18LUAD AOH18LMAKL
ARH24LUAN AOH24LMAKL
type
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . .
ERROR CONTENTS . . . . . . . . . . . . . . . . . . . . . . . .
DISASSEMBLY ILLUSTRATION . . . . . . . . . . . . . . . 12
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
STANDARD ACCESSORIES . . . . . . . . . . . . . . . . . . 22
10OUTDOOR PCB CIRCUIT DIAGRAM
11
5REFRIGERANT SYSTEM DIAGRAM . . . . . . . . . . . .
6
8INDOOR PCB CIRCUIT DIAGRAM
Page 2
SPECIFICATIONS
TYPE
INDOOR UNIT ARH18LUAD ARH24LUAN
OUTDOOR UNIT
COOLING CAPACITY
HEATING CAPACITY (kW)
(kW)
AOH18LMAKL AOH24LMAKL
COOLING & HEATING
5.20 7.10
6.20 8.00
ELECTRICAL DATA
POWER SOURCE (V) 230
FREQUENCY (Hz)
RUNNING
CURRENT
INPUT WATTS (kW)
E.E.R. (kW/kW)
STARTING CURRENT (A)
MOISTURE REMOVAL 1.7 1.5
Note : The above list shows values at the external static pressure of
0Pa [ARH18L] / 30Pa [ARH24L] , setting the fan speed high notch.
COOLING 7.4 11.1
(A)
HEATING 8.3 10.6
COOLING
HEATING
COOLING 3.06 2.81
HEATING 3.26 3.29
( /hr)
1.70 2.53
1.90
50
2.43
10
COMPRESSOR
TYPE
DISCRIMINATION TNB220FPCM
REFRIGERANT R410A (g) 1,500 1,800
DISCRIMINATION MFA-18NTT MFA-30PTT
HIGH 1,040 980
FAN SPEED INDOOR
(r.p.m.) LOW 750 810
OUTDOOR HI / LO 780 / 400
AIR FLOW
DIMENSIONS
H x W x D
WEIGHT
GROSS / NET
MAX PIPE LENGTH / HEIGHT (m) 25 / 15
REMOTE CONTROLLER TYPE
INDOOR 800 1,490
(m3/ h)
OUTDOOR 2,800
INDOOR 217 x 953 x 595 270 x 1,135 x 700
(mm) OUTDOOR 650 x 830 x 320
INDOOR 29 / 25 48 / 41
(kg) OUTDOOR 58 / 54
MED 890 890
Hermetic type, 4 poles, DC motor,
Twin Rotary
WIRED
Note : The above list shows values at the external static pressure of
0Pa [ARH18L] (10mm Ag) / 30Pa [ARH24L] (10mm Ag),
setting the fan speed high notch.
12005.10.20
Page 3
TYPE
INDOOR UNIT
OUTDOOR UNIT
ARH18LUAD ARH24LUAN
AOH18LMAKL
NOISE LEVEL
HI-SPEED (dB)
INDOOR UNIT
OUTDOOR UNIT (dB)
Note : Static pressure : 0Pa [ARH18L], 30Pa [ARH24L]
Duct length : Inlet 1m, Outlet 2m
MED-SPEED (dB) 34 32
LO-SPEED (dB) 30 29
COOL 50 / HEAT 52
COOLING & HEATING
38
AOH24LMAKL
34
COOL 52 / HEAT 54
Pipe Length
FULL CHARGE
AMOUNT
ADDITIONAL REFRIGERANT 20 g / m 40 g / m
When you dismantle indoor units which are installed,
take care not to make parts fall down, especially motors.
7.5 m 1,500 g 1,800 g
10.0 m 1,500 g 1,800 g
15.0 m 1,600 g 2,000 g
20.0 m 1,700 g 2,200 g
25.0 m 1,800 g 2,400 g
22005.10.20
Page 4
DIMENSIONS
INDOOR UNIT
Model : ARH18LUAD
390
(Unit : mm)
886
850
150
Model : ARH24LUAN
32
240
953
920
600
139
264 264 264
132
1,177
605
57520
114
66
32
168
217
240
281
121
200
477
161
173
1,015
1,135
54
107
700
283
40
39
240
270
16
32005.11.14
Page 5
OUTDOOR UNIT
Models :
AOH18LMAKL
AOH24LMAKL
830
(Unit : mm)
350
320
650
12
Bottom
Air flow
343
603
42005.10.20
Page 6
REFRIGERANT SYSTEM DIAGRAM
Models : ARH18LUAD / AOH18LMAKL
OUTDOOR UNIT NDOOR UNIT
Muffler
High
Pressure
Switch
4-Way
Valve
Refrigerant Pipe
12.7mm (1/2")
Condenser
Compressor
Expansion
Valve
Accumulator
Strainer
Refrigerant Pipe
6.35mm (1/4")
Evaporator
Models : ARH24LUAN / AOH18LMAKL
OUTDOOR UNIT NDOOR UNIT
Muffler
High
Pressure
Switch
4-Way
Valve
Refrigerant Pipe
15.88mm (5/8")
Condenser
Cool
Heat
Compressor
Expansion
Valve
Accumulator
Strainer
Evaporator
Refrigerant Pipe
9.52mm (3/8")
52005.10.27
Page 7
CIRCUIT DIAGRAM
Model : ARH18LUAD
FAN MOTOR
CAPACITOR
Model : AOH18LMAKL
FAN MOTOR
GREEN / YELLOW
GRAY
2
1
CN6
2
(DRAIN PUMP)
CN11
1
(FRESH AIR)
2
1
(INDICATOR)
CN15
2
(FLOAT SW)
3
WHITE
1
CN4
WHITE
2
BLACK
1
WHITE
2
RED
3
CN5
PINK
4
PURPLE
5
BLUE
6
CN1
2
1
3
RED
BLACK
WHITE
Use T3.15A-250V
Fuse on F101
ACTIVE FILTER MODULE
1
GRAY
BLACK
BLACK
2
11
CN8CN7
CN10
(HEATER)
CN13
CN17
CONTROLLER
PCB BOARD
CN14
(HA)
POWER SUPPLY
PCB BOARD
CN11
2
3 456
1
2
1
2
3
4
5
6
7
8
3
2
1
1
2
3
4
BLACK
WHITE
RED
WHITE
BLACK
GREEN
-
PIPE TEMPERATURE THERMISTOR
ROOM TEMPERATURE THERMISTOR
3
2
(N)
1
3
2
1
TO OUTDOOR UNIT
OUTDOOR
UNIT
TO REMOTE CONTROL UNIT
REMOTE
CONTROL
TERMINAL
WHITE
L1
WHITE
L2
N1P+
CHOKE COIL
COMPRESSOR
PRESURE SWITC
COMPRESSOR
THERMAL SWITC
RED
BROWN
DISCHARGE TEMP. THERMISTOR
BROWN
PIPE TEMP. THERMISTOR
BLACK
OUTDOOR TEMP. THERMISTOR
BLUE
HEAT SINK TEMP. THERMISTOR
BROWN
RED
BROWN
123
CN407
1
CN37
2
FUSE
1
CN38
2
F2 T3.15A-250V
PRINTED CIRCUIT BOARD
1
CN21
2
1
CN22
2
1
CN23
2
1
CN25
2
FUSE
F4 T5A 250V
TERMINAL
ORANGE
RED
YELLOW
4
W10
W11
W4W5W8 W1
RED
BLACK
WHITE
FUSE 25A
2(N)
1
3
BLACK
BLACK BLACK
TM104
L
WHITEYELLOW
+
CN30
CN11
W2
WHITE
N
PURPLEBLUE
CAPACITOR
TM105
TM305
TM304
TM303
1
2
3
1
2
3
4
5
6
7
W102
W103
1
2
3
CN27
4
5
6
W3
GREEN
RED
WHITE
V
BLACK
BLACK
BLACK
CONNECTOR
BLUE
RED
WHITE
BLACK
BLACK
BLACK
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
U
W
4WV
FM
EV
COMPRESSOR
4-WAY VALVE
FAN MOTOR
FAN CAPACITOR
EXPANSION
VALVE COIL A
62005.10.27
Page 8
Model : ARH24LUAN
GREEN
E101
CN109
1
2
FAN MOTOR
Model : AOH24LMAKL
TRANSFORMER
PURPLE
PURPLE
2
1
1
2
CN103 CN104
POWER SUPPLY PCB
CN108CN107
3
4
2
5
6
2
5
3
4
6
REDRED
BLUEBLUE
3
1
2
5
6
2
5
3
1
6
WHITE WHITE
PINK PINK
PURPLE PURPLE
2
1
1
1
1
2
Use T3.15A-250V
Fuse on F101
WHITE
WHITE
BLACK
4
4
FAN
BLACK
CAPACITOR
TERMINAL
RED
RED
2
1
1
2
CN101
1
1
BLACK
1
3
2
1
CN114
2
1
CN115
W105
2
2
RED
WHITE
32
TO OUTDOOR UNIT
2
1
CN106CN105CN116
4
4
3
3
2
2
1
1
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
2
2
1
1
CN113
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
2
1
CN5
4
45
3
3
2
2
1
1
10
10
9
9
8
8
7
7
6
6
5
CN2 CN1
4
4
3
3
2
2
1
1
MAIN PCB
2
2
CN6 CN14 CN15
1
1
CN4
2
3
1
2
1
WHITE
BLACK
RED
2331
PIPE TEMP. THERMISTOR
ROOM TEMP. THERMISTOR
BLACK
BLACK
2
2
2
TERMINAL
GRAY
GRAY
2
11
11
2
CN7CN8
31
2
CN9
2
11
REMOTE CONTROL UNIT
ACTIVE FILTER MODULE
WHITE
CN11
1 2 3 4 5 6
L1
WHITE
L2
N1P+
-
CHOKE COIL
COMPRESSOR
PRESURE SWITC
COMPRESSOR
THERMAL SWITC
RED
BROWN
DISCHARGE TEMP. THERMISTOR
BROWN
PIPE TEMP. THERMISTOR
BLACK
OUTDOOR TEMP. THERMISTOR
BLUE
HEAT SINK TEMP. THERMISTOR
BROWN
RED
BROWN
123
CN407
1
CN37
2
FUSE
1
CN38
2
F2 T3.15A-250V
PRINTED CIRCUIT BOARD
1
CN21
2
1
CN22
2
1
CN23
2
1
CN25
2
FUSE
F4 T5A 250V
TERMINAL
RED
YELLOW
ORANGE
4
W10
W11
W4W5W8 W1
RED
BLACK
WHITE
FUSE 25A
1
2(N)
3 L N
BLACK
BLACK BLACK
TM104
W2
WHITE
WHITEYELLOW
+
CN30
CN11
PURPLEBLUE
TM105
TM305
TM304
TM303
W102
W103
CN27
W3
GREEN
CAPACITOR
RED
WHITE
V
BLACK
BLACK
1
2
BLACK
3
CONNECTOR
BLUE
1
2
RED
3
4
WHITE
5
6
BLACK
7
BLACK
BLACK
RED
1
BROWN
2
BLUE
3
ORANGE
4
YELLOW
5
WHITE
6
U
W
4WV
FM
EV
COMPRESSOR
4-WAY VALVE
FAN MOTOR
FAN CAPACITOR
EXPANSION
VALVE COIL A
72005.10.28
Page 9
INDOOR PCB CIRCUIT DIAGRAM
Model :
ARH18LUAD
TM101
N
TM102
UL1015 AWG14 BLACK
UL1015 AWG14 WHITE
UL1015 AWG14 RED
FAN MOTOR
YELLOW / GREEN
TERMINAL BOARD
REMOTE
CONTROL
UNIT
R1 3.3
<RC - 5W>
FH101
F101
L
3.15A - 250V
<BET>
SA101
RA-362M
E101 W103
GREEN
UL1015 AWG16
FAN CAPACITOR
2.3uF
450V
F M
1
2(N)
3
1
2(N)
3
POWER SOURCE
230V
50Hz
E
D1
D3SB60
C5
+
100/
450V
FH102
VA102 470V
<TNR>
VA101 470V
<TNR>
W104
UL1015
AWG18
BLACK
UL1015 AWG18 WHITE
UL1015 AWG20 WHITE
UL1015 AWG20 WHITE
BLACK
WHITE
RED
PINK
PURPLE
BLUE
TO CONNECTOR No.17
C6 4700P
<ECQM>
R4 330K
<SPRH - 2W>
Q1
2SC4236
R3 100
<1/10W>
R2 1.5
<RS - 2W>
ELF17N015A
Q2
2SC1815
C103
0.022
<YE>
C104
0.022
<YE>
D5
1SR139-600
D10
1SR139-600
C7 0.047
<ECQB>
D2
D1FL20U
D3
MTZJ5.1B
R7
330
<1/4W>
C105
0.01
<F>
C106
0.01
<F>
LF101
POWER SUPPLY PCB
K01AL-040YHSE-P0
CN1 B3P5-VH-B-C BLACK
CN1-1
CN1-2
CN1-3
CN4
B2P3-VH-B-Y YELLOW
CN4-1
CN4-2
CN5-1
CN5-2
CN5-3
CN5-4
CN5-5
CN5-6
CN5 B6P11-VH-B WHITE
CN6-2
DRAIN PUMP
CN6 B2P3-VH-B-E BLUE
CN6-1
C3 0.22 <RE>
R88 120 <1/2W>
R6 100
<1/2W>
D4
D1FL20U
C8
100/6.3V
+
JM6
C101
0.22
<RE>
K2
G5SB-14
K4
G5NB-1A
R5 62K
<RS - 2W>
K1
G5SB-14
K3
G5SB-14
No.1
No.2
No.3
SW1
DSS803
C9
1000
/25V
VA1 470V
<TNR>
C
JM1
JM2
JM3
D6
D2FL20U
+
R8 10K
<1/10W>
C54
0.01
<F>
CUSTOM CODE
CUSTOM CODE
CUSTOM CODE
SWITCHING TRANSFORMER
T1
ZFT29B01
PRIMARY SECONDARY
SW2 DRS4016-5
18
14
10
5V
SSR1
G3MC-201PL-VD
DC12V
+
-
VA2 470V
<TNR>
5V
R21 - R24
10K <1/10W> x 4
CN9-1
CN9-2
AUTO RESTART
CN9-3
CN9-4
CN9-5
CN9
B5P-SHF-1AA
WHITE
R39 R38
TEST
ROOM TEMPERATURE CORRECTION
( HEATING OPERATION )
ROOM TEMPERATURE CORRECTION
( HEATING OPERATION )
10K <1/10W> x 3
R16
R17
14V
5V
10K <1/10W> x 4
R30 R31
R29
8
4
2
1
I C 10 H I 2002
R93 10K <1/10W>
R94 10K <1/10W>
R95 10K <1/10W>
R96 10K <1/10W>
14V
I C6 (4/7)
uPA2003GR
5V
5V
R15
I C2
7812
IO
G
C11
10/
25V
I C3
7805
IO
G
C13
0.1
<F>
I C5 (5/7)
uPA2003GR
11 6
12
K 2
13 4
K 1
14 3
K 3
15 2
K 4
12
13
14 3
15
R37
10K <1/10W> x 3
R42 1.0K <1/10W>
R41 1.0K <1/10W>
R40 1.0K <1/10W>
R18 1.0K <1/10W>
R19 1.0K <1/10W>
R20 1.0K <1/10W>
12V
+
R59 R97
5V
C14
100/
6.3V
R32
R33 - R36
1.0K <1/10W> x 4
5V
1
C26 - C29
0.01 <F>
x 4
10
5
2
3
4
C17
0.01
<F>
14V
9
5
5
4
R25 - R28
1.0K <1/10W> x 4
C22 - C25
0.01 <F> x 4
0.01 <F> x 3
C21
0.01
<F>
R98 R99
10K <1/10W> x 4
C15
+
0.1
<F>
NC
I C5 (1/7)
7
uPA2003GR
8
R14 10K
<1/10W>
5V
R10
10K
<1/10W>
Q3
DTC124EKA
C10 C12
C20
0.01
<F>
C47
0.1
<F>
R9 390
<1/10W>
C30
CR1
0.01
<F>
CR6
0.01
<F>
C19
0.01
<F>
1
2
3
54
55
66
65
74
68
75
7
4
67
33
72
56
57
58
59
41
42
63
40
39
38
37
36
52
51
49
48
43
44
45
46
19
20
21
P15
P16
I C 1
P17
uPD780058BGC
-131-8BT-A
P122
P123
P05
P04
VDD0
VDD1
AVRF0
AVRF1
AVSS
VSS0
VSS1
XT2
P124
P125
P126
P127
P65
P66
P02
P64
P63
P62
P61
P60
P120
P37
P35
P34
P67
P30
P31
P32
P40
P41
P42
X1 X2
70 69
1
2
P10
76
77
P11
8
P70
P71
9
10
P72
P131
6
73
XT1
25
P46
26
P47
35
P57
34
P56
50
P36
P33
47
27
P50
P27
18
P26
17
16
P25
13
P22
12
P21
11
P20
P130
5
28
P51
29
P52
30
P53
31
P54
32
P55
62
P01
61
P00
53
P121
64
P03
78
P12
79
P13
80
P14
24
P45
P44
23
22
P43
C31
71
I C
P24
15
14
P23
60
RESET
3
X1
CSTS0500MG03-T
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
K01AL-040YHSE-C1
C32
1000P
<R>
C35
1000P
<R>
5V
Q5
2SC2712
I C6 (1/7)
uPA2003GR
CR7
0.01
<F>
C16 C43
5V
C44
0.1
<F>
R44 1.0K
<1/10W>
R46 1.0K
<1/10W>
R50 10K <1/10W>
4
3
2
1
R77 - R79
10K <1/10W> x 3
611
1
I C5 (1/7)
7
10
6
5
12
4
3
14
2
1
16
5V
R60
10K
<1/10W>
3
Q6
1
2SC2712
2
R67 1.0K
<1/10W>
CR2 - CR4
10K <1/10W> x 3
R81 1.0K <1/10W>
R72 1.0K <1/10W>
R71 1.0K <1/10W>
0.01 <F> x 3
R55
10K
<1/10W>
I C8
PST600C
VCC
DO
NC
D I
CK
NC
CS
GND
I C7
BR93L46RF
I C6 (2/7)
16
uPA2003GR
uPA2003GR
161
11
I C4 (7/7)
14V
uPA2003GR
9
13
8
15
C40
0.01
<F>
R61
10K
<1/10W>
3
1
2
R65 390 <1/10W>
107
5V
R68 10K
<1/10W>
C1
0.1
R70 R69
<F>
5V
1
3
2
8
7
6
5
R56
R62 4.7K
<1/10W>
C45
0.1
<F>
R43 10K
<1/10W>
(1%)
R45 49.9K
<1/10W>
(1%)
5V
C39
0.1
<F>
R57 1.0K
<1/10W>
B Z
BZ1
PKM13EPY-4000
R51 0.1 <1/10W>
R54 47 <1/10W>
CR5
1000P
<R>
12V
+
7
ÂI C11-2
BA10358
5V
10K <1/10W> x 3
R80
SW4
DSS803
R76
10K
<1/10W>
R58, R100
10K <1/10W>
x 2
14V
R53
10K
<1/10W>
12V
5
6
12V
D7
DA226U
No.3
No.2
No.1
JM10
C34
0.1
<F>
C37
0.1
<F>
5V
Q4
DTC124EKA
C38
0.01
<F>
14V
5V
R63 15.4K
<1/10W>
(1%)
R64 28K
<1/10W>
(1%)
R66 10K
<1/10W>
I C11-1
BA10358
1
FUN DELEY SHIFT
FAN MOTOR TYPE SHIFT
REMOTE CONTROL UNIT TYPE SHIFT
5V
R75
10K
<1/10W>
C49
0.01
<F>
R52
10K
<1/10W>
12V
L2 0.022
<DSS306>
L4 0.022
<DSS306>
L3 0.022
<DSS306>
3
+
2
-
R49 1.0K
<1/10W>
5V
C41
+
10/
25V
5V
5V
RJ2
10K
RJ1 1.0K
<1/10W>
R48 10K
<1/10W>
<1/10W>
CN15-1
CN15-2
CN15-3
5V
5V
R47 390
<1/10W>
CN10-1
CN10-2
CN10 B2B-XAMK-1-A
CN11 B2B-XARK-1-A RED
CN11-1
CN11-2
CN13 B8B-XASK-1-A
CN13-1
CN13-2
CN13-3
CN13-4
CN13-8
CN13-5
C42
0.01
<F>
CN13-7
CN13-6
CN17 B3B-XAKK-1-A BLACK
CN17-1
UL1430 AWG22 RED
CN17-2
UL1430 AWG22 WHITE
CN17-3
UL1430 AWG22 BLACK
CN8 B2B-XASK-1-A ROOM TEMPERATURE THERMISTOR
CN8-1 BLACK
CN8-2 BLACK
CN7-1
CN7-2 GRAY
PIPE TEMPERATURE THERMISTOR
GRAY
CN7 B2B-XAKK-1-A BLACK
FLOAT SWITCH
CN15 B3B-XARK-1-A
RED
CN14 B4B-XH-AM
CN14-4
CN14-3
JEM-A HA
CN14-2
CN14-1
HEATER
GREEN
FRESH AIR
DISPLAY BOARD
TOTERMINAL BOARD
1 PIN
2 PIN
3 PIN
82005.10.28
Page 10
Model :
ARH24LUAN
SECONDARY
PRIMARY
POWER TRANSFORMER
EZ-0970WWE-T
CN103
B2P3-VH-B-R
RED
UL1015 AWG22 VIOLET
UL1015 AWG22 VIOLET
2
1
FH102
F101
3.15A
<BET>
FH101
CN101
B2P3-VH-B-C
BLACK
AC I N
L
TERMINAL BOARD
CN104
B2B-XARK-1-A
RED
UL1430 AWG22 RED
UL1430 AWG22 RED
C102 0.22
<RE>
C103
C104
0.01
0.01
<YE>
<YE>
LF101
ELF17N015A
2
1
C105
C106
0.01
0.01
<YE>
<YE>
C101
0.22 <RE>
VA101
470V
<ERZV>
12
E101
N
GREEN
UL1015 AWG16
UL1015 AWG18 BLACK
UL1015 AWG18 WHITE
1
2(N)
3
3
4
W105
SERIAL
UL1015 AWG20 RED
POWER SUPPLY PCB
K04CW-0405HSE-P0
JM103
2
1
D101
D2SB20
2
431
R102
10K
<1/4W>
I C101
NJM7805
5V
3
OGI
+
2
I C102
NJM7812
OGI
3
2
18
14
10
CR105
120 / 0.2
BLUE
PURPLE
1
1
K110
G2R-1A
DC12V
WHITE
PINK
RED
C112
0.1
<F>
C111
10/
25V
VA103
470V
<ERZV>
VA102
470V
<ERZV>
SA101
RA
-362M
12V
FAN
MOTOR
5V
C107
+
1000
/50V
+
PC102
TLP621
<GB>
4
3
FL102 BL02Rn1
I C 103 H I 2002
K101
G5SB-14
DC12V
K103
G5SB-14
DC12V
CN107
B6P11-VH-B
WHITE
123456
FAN MOTOR
BLACK
UL1015 AWG20 x 6
12V
14V
Q101
2SD1932
R103
1.0K
<1/2W>
D102
C108
MTZJ
10/
15C
25V
C114
0.01
<B>
1
2
R108 330
<1/4W>
14V
K102
K101
K103
K110
K104
G5NB-1A
14V
3
1
K102
G5SB-14
DC12V
12
UL1015 AWG20 WHITE
UL1015 AWG20 WHITE
FAN CAPACITOR
5.0uF 450V
CN105
B04B-PASK-1
WHITE
1
2
3
4
14V
+
C109
10/
25V
R107 330
FL101
BL02Rn1
14V
1
2
PC103
TLP621
<GB>
5V
1
5
2
3
4
1
2
3
4
K104
5
6
7
8
9
I NT
10
2
4
CR101
120 / 0.2
CN108
B2P3-VH-B-Y
YELLOW
FAN CAPACITOR
TEST
CN3
B5P-SHF-1AA
WHITE
DC SUPPLY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
CN1
B04B-PASK-1
WHITE
CN114
B3B-XH-AM
WHITE
1
2
3
5V
1
<1/4W>
2
4
3
11
22
1
2
CN113
B02B-PARK-1
RED
RELAY DRIVE
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
CN116
B10B-PASK-1
WHITE
12
CN109
B2P3-VH-B-E
BLUE
DRAIN PUMP
1
2
3
4
5
R25 R26 R27 R28
SW3
4
8
4
3
2
2
5
1
1C
EX. I N
EX. OUT
CN115
B2B-XH-AM
WHITE
CN106
B02B-PAKK-1
BLACK
EX. SIGNAL
SERIAL
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
R29 R30 R31
5V
10K <1/10W> x 4
14V
12V
1
2
3
4
C42 - C44
0.1 <F> x 3
SW1
8
7
6
5
5V
+
CN5
B02B-PAKK-1
BLACK
CN4
B02B-PARK-1
RED
NEW SERIAL
CN16
B02B-PASK-1
WHITE
1
2
3
4
5
6
7
8
9
10
CN2
B10B-PASK-1
WHITE
14V
BZ1
PKM13EPY-4000-TF01
5V
10K <1/10W> x 4
R21 - R24
1.0K <1/10W> x 4
5V
SW2
3
6
2
5
1
4
AUTO RESTART
EX. SIGNAL FUNCTION
ROOM TEMP. CORRECTION
( HEATING OPERATION )
C4
0.1
<F>
4
3
2
1
REMOTE CONTROL UNIT
CUSTOM CODE SWHITCHING
REMOTE CONTROL UNIT
CUSTOM CODE SWHITCHING
FAN CHANGER
FAN CHANGER
5V
1
2
1
2
R37 1.0K
<1/10W>
C3
0.1
<F>
R73
10K
<1/10W>
5V
R76 10K
<1/10W>
5V
R55
10K
<1/10W>
R54 180
<1/10W>
Q1
DTA143
I C2 (6/7)
uPA2003GR
12145
C1
100/6.3V
B Z
R32
C28 - C31
0.01 <F> x 4
C24
0.1
<F>
5V
R15 - R17
10K <1/10W> x 3
R18 - R20
1.0K <1/10W> x 3
5V
R11 - R14
10K <1/10W> x 4
R7 - R10
1.0K <1/10W> x 4
C17 - C20
0.1 <F> x 4
R74 1.0K
<1/10W>
R75 10K
<1/10W>
C34
0.01
<F>
3
1
14V
9
11 6
13
3
15
1
5V
C33
0.01
<F>
R38 1.0K
<1/10W>
R33 - R36
1.0K <1/10W> x 4
C25
0.1
<F>
C35
0.01
<B>
I C3 (1/7)
uPA2003GR
R56 1.0K
<1/10W>
C38
0.01
<F>
2
I C4 (4/7)
uPA2003GR
15132
4
2
R77 10K
<1/10W>
1
Q2
DTC124EKA
C26
0.1
<F>
C21 - C23
0.1 <F>
x 3
FAN SPEED
FAN SPEED
1
16
10
I C2 (1/7)
uPA2003GR
5V
R53
10K
<1/10W>
14V
14
16
4
8
R78 390
<1/10W>
3
2
I C3 (1/7)
uPA2003GR
12 5
C27
0.1
<F>
7
9
C32
0.01
<F>
3
1
P15
1
P16
2
3
P17
P130
5
P131
6
P72
10
11
P20
VDD0
74
VDD1
68
75
AVRF0
AVRF1
7
4
AVSS
67
VSS0
33
VSS1
P31
45
P32
46
P53
30
25
P46
P70
8
9
P71
P51
28
27
P50
26
P47
29
P52
24
P45
P44
23
22
P43
21
P42
20
P41
19
P40
P02
63
50
P36
P30
44
P67
43
42
P66
41
P65
P21
12
P22
13
P25
16
P26
17
1
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
K03BZ-040EHSE-C1
I C 1
uPD780058BGK
-A42-9EU-A
X1 X2
70 69
2
65
P04
P05
66
P07
73
80
P14
79
P13
78
P12
P10
76
P11
77
P127
59
P126
58
P125
57
P124
56
P123
55
P122
54
P121
53
P120
52
JM4
71
I C
14
P23
P24
15
40
P64
P60
36
P61
37
P62
38
P63
39
62
P01
5V
61
P00
I C3 (1/7)
uPA2003GR
51
P37
47
P33
P34
48
49
P35
72
XT2
P57
35
31
P54
32
P55
34
P56
18
P27
64
P03
R72
10K
<1/10W>
60
RESET
3
X1
CSTS0500MG03-T
C16
0.1
<F>
14V
9
10
7
11
6
12
5
13
4
14
3
15
2
16
1
8
C39
0.01
<F>
I C6-2
R71
BA10393F
10K
<1/10W>
I C6-1
BA10393F
611
14V
9
2
3
4
8
NC
R45
10K <1/10W> x 3
D1
5V
DAN202K
2
C11
0.1
<F>
C14
C15
0.1
0.1
<F>
<F>
I C5 (7/7)
uPA2003GR
5V
R49
10K
<1/10W>
R41 1.0K <1/10W>
C41
1000P
<R>
12V
6
-
7
5
+
2
1
-
3
+
R67 390
<1/10W>
15
14
I C3 (3/7)
13
uPA2003GR
R46
3
1
I C9
BD4742G
5
VCC
VOUT
4
GND
3
R47
SUB
2
1
NC
R4 1.0K <1/10W>
R5 1.0K <1/10W>
R6 1.0K <1/10W>
R62 - R64
10K <1/10W> x 3
R50
10K
<1/10W>
R42 47
<1/10W>
R68
15.4K
<1/10W>
R69
28K
<1/10W>
R70
10K
<1/10W>
5V
C12
0.1
<F>
R57 - R59
1.0K <1/10W> x 3
5V
R43
10K
<1/10W>
12V
D2
DA226U
12
R48 10K
<1/10W>
1
CS
VCC
DO
2
SK
NC
3
D I
6
NC
GND
I C7
BR93LC46
C36
0.01
<F>
C37
0.01
<F>
R3 R2
R44
10K
<1/10W>
C2
10/
25V
3
5V
8
4
7
5
R40 1.0K
<1/10W>
R80
10K
<1/10W>
R79 1.0K
<1/10W>
12V
C13
0.1
<F>
5V
+
D3
D1FS4A
5V
5V
5V
R1
7
C40
0.01
<F>
14V
14V
R39
10K
<1/10W>
C10
0.1
<F>
10K <1/10W> x 3
ROOM TEMP. CORRECTION
JM1
( COOLING OPERATION )
JM2
COMMERCIAL MODE
FAN DELAY CHANGE
JM3
( HEATING OPERATION )
C8
0.1
<F>
C9
0.1
<F>
10
I C3 (1/7)
uPA2003GR
1
2
3
4
5
6
7
8
1
2
3
1
2
1
2
1
2
3
1
2
3
R60 1.0K
<1/10W>
R61 1.0K
<1/10W>
CN13
B8B-XASK-1-A
WHITE
CN6
B3B-XAKK-1-A
BLACK
CN14
B02B-PAMK-1
GREEN
CN15
B02B-PAOK-1
ORANGE
CN9
B3B-XARK-1-A
RED
CN10
B3P-VH-B
WHITE
R65
10K
<1/10W>
R66
49.9K
<1/10W>
14V
INDICATOR
REMOTE
FRESH AIR
HEATER
FLOAT SWITCH
FEED BACK
JP
Function
JP
Room temp. revise (cooling)
JP1
Commercial mode
JP2
Fan delay change (heating operation)
JP3
CN8
5V
B2B-XASK-1-A
WHITE
CN7
B2B-XAKK-1-A
BLACK
CN11
B5B-XASK-1-A
WHITE
LOUVER ( U / D )
CN12
B5B-XARK-1-A
RED
LOUVER ( R / L )
UL1430 AWG22 WHITE
UL1430 AWG22 BLACK
321
BLACK
BLACK
GRAY
GRAY
UL1430 AWG22 RED
TERMINAL BOARD
1
2
1
2
1
2
3
4
5
1
2
3
4
5
EARTH WIRE
REMOTE CONTROL UNIT
Remote controller custom code switching
SW1-3 SW1-4 Wired remote controller
off
off
on off
off
on
"with thermistor" type
weekly type
on
EZ-098YHSE-R series
on
EZ-09503HSE-R series
SW1 & SW2
SW1-1 Fan changer
SW1-2
Fan changer
Room temp. revise (heating)SW2-1
SW2-2
Ex. signal function changer
SW2-3
Auto restart
off
on
+2 deg.
o deg.
normal
commercial
Delay
No delay
ROOM TEMPERATURE THERMISTOR
PIPE TEMPERATURE THERMISTOR
on offSW Function
---
---
---
---
+4 deg.
0 deg.
edge
pulse
not auto
auto
92005.10.28
Page 11
OUTDOOR PCB CIRCUIT DIAGRAM
Models : AOH18LMAKL
AOH24LMAKL
CONTROLLER PCB ASSEMBLY
AOH18LMAKL : K03AV-0401HUE-C1
AOH24LMAKL : K03AV-0402HUE-C1
POWER SOURCE
230V
50Hz
TO
INDOOR UNIT-A
FAN CAPACITOR
C200
450V
3.5uF
FAN MOTOR
F M 1
4-WAY VALVE
PRESSURE SWITCH
COMP. THERMOSTAT
EXPANSION VALVE-A
M
HEATSINK
TEMP. TH.
DISCHARGED
TEMP. TH.
PIPE
TEMP. TH.
OUTDOOR
TEMP. TH.
UL1015
EMI FILTER
AWG14
BLACK
RFC-8
F201 TLC
1T
25A - 250V
L
N
L
N
WHITE
BLACK
WHITE
B
3
UL1015
AWG16
GREEN
EARTH
RED
UL1015
AWG20 x 4
UL1015
AWG20
BLACK
UL1015
AWG20
BLACK
BLACK
WHITE
RED
BLUE
CN11 B4P7-VH-B
BLACK
BROWN
BROWN
BROWN
BROWN
BLACK
BLACK
BLUE
BLUE
BLACK
RED
RED
BROWN
BROWN
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
CN30 179844-1 WHITE
CN37 B2B-XARK-1-A RED
CN38 B2B-XAMK-1-A GREEN
CN27 B6B-XARK-1-A RED
CN25 B2B-XAKK-1-A BLACK
CN21 B2B-XH-AM YELLOW
CN22 B2B-XH-AM RED
CN23 B2B-XAEK-1-A BLUE
W1
BLACK
W4
BLACK
W2
BLACK
W5
BLACK
W3
W8
W103
BLACK
W102 B
4
3
2
1
CR5
2
RE1202
1
1
2
1
2
12V
1
2
3
4
5
6
1
2
1
2
1
2
1
2
B
B
B
B
BLACK
VA101
470V
<TNR>
VA102
470V
<TNR>
SA100
RA-302M
GREEN
RED
B
5V
R91
L202
BL02Rn1
L201
BL02Rn1
SERIAL A
CR1
RE1202
K11
G5SB-14
3
4
5
R90
2.2K x 2
C70C71
0.1 <F> x 2
5V
R63 6.65K
<1/10W>
(1%)
R65 56K
<1/10W>
(1%)
R67 38.3K
<1/10W>
(1%)
C101
1.0
<LE>
2
23
12V
4
+
1
G5NB-1A
3
12V
1
1.0K <1/10W> x 2
<1/10W>
R93
R92
C73
L1
RCV2515-010PF05
2
1
4
3
K13
12V
1
2
4
K17
G5NB-1A
C72
0.01 <F> x 2
R62 10K
<1/10W>
R64 10K
<1/10W>
R66 10K
<1/10W>
C104
0.033
<YE>
C106
C105
1.0
0.033
<LE>
<YE>
PFC5000-0502
x 2
FH1
F4
250V - 5A
<BET>
1418
8
7
12V
D28
SLR-332
<RED>
R43
2.2K <1/10W>
C37
0.1
<F>
C38
0.1
<F>
C39
0.1
<F>
C43
0
C44
0
C45
0
C46
0
TM100
FH2
HY I C1
HU2001
2
O1
7
O2
9
O3
16
O4
4
GND1
5
GND2
12
GND3
13
GND4
I C4
TD62064
3
10
6
5V
I C3-5 M54523
I C3-6 M54523
I C3-4 M54523
I C3-2 M54523
I C3-1 M54523
I C3-7 M54523
I C3-3 M54523
3
I 1
6
I 2
11
I 3
14
I 4
1
COM1
8
COM2
10
NC1
15
NC2
R47
2.94K
<1/10W>
(1%)
R45 10K
<1/10W>
R44 6.65K
<1/10W>
(1%)
L2
N200500K
54
CT1
CT-1B
R60 1.0K
<1/10W> (1%)
1
432
5
3
4
5
21
12V
1.5K <1/10W> x 4
5V
R46
2.87K
<1/10W>
(1%)
I C14-1
uPC393
1
C107
3.3
<LE>
R97
R96
R95
R94
C74
0.1
<F>
12
11
13
15
16
10
14
5V
5V
R51 4.7K
<1/10W>
5V
C75
0.1
<F>
2
-
3
+
5V
L4
RCV2515-010PF05
D60
DAN217U
1
3
2
C60
220/16V
<PJ>
1
5V
R50
10K
<1/10W>
R52 1.0K
<1/10W>
R53
10K
<1/10W>
5
6
4
2
1
7
3
5V
5V
1
R42 1.0K
<1/10W>
C76
0.1
<F>
R11
10K
<1/10W>
R55 1.0K
<1/10W>
3
2
R49
10K
<1/10W>
12
C111
1.0
<LE>
34
R68 22K
<1/10W>
+
VR1
B2K
R61 3.74K
<1/10W> (1%)
R56 27K <1/10W>
Q51
2SC2412K
<BQ>
C51
0.022 <F>
C40
0.1
<F>
C77
0.1
<F>
C53
0.022
<F>
C64
0.1
<F>
12V
4
1
K101
DW12D1
MB90462PFM-G
-167-BN0-E1
1
2
R200
ZPR0RCH400
3
2
C114
1.0 <LE>
R437 270
<1/10W> (1%)
R438 270
<1/10W> (1%)
5V
R404
510
<1/10W>
2
I C 1
VCC
17
AVCC
P62
16
2
P00
P46
P01
P12
35
P50
3
P17
59
P13
P37
58
P14
P36
60
P40
P15
21
MD2
P16
AVR
P11
34
P24
P26
47
P25
27
P02
28
P30
P03
29
P31
P04
P32
30
P05
P33
31
P06
32
P34
P07
P35
P10
33
P60
57
C
P61
41
P20
42
P21
MD0
43
P22
MD1
44
P44
P23
P57
10
P43
P42
P56
9
P41
8
P55
P45
P54
7
5
RSTX
P52
6
P27
P53
AGND
4
P51
22
GND
X0
23
X1
GND
3
X1
8.00MHz
<EF0EC>
2
3
D101
D25XB60
1
2
3
I C402
PS2561L-1-V
Q401
1
DTC114EKA
0.1 <F> x 2
C19 C18
56P63
11
R608 10K
25
<1/10W>
26
40
36
37
38
39
12
45
46
50
51
52
53
54
55
14
15
18
20
64
63
62
61
1
19
48
13
24
49
+
-
A
U
X
V
Y
W
Z
C415
0.01
<F>
18V
4
3
5V
A
+
1
4
18V
C413
0.01
<F>
C20 <PS>
5V
R19 10K
<1/10W>
W10
RED
C115
0.1
<HCP>
W11
BLACK
1
2
A
3
4
CN407
B4B-XASK
-1-A WHITE
ACTPM CONTROL
I C201
BR93LC46
1
CS
4.7/50V
2
SK
3
D I
6
NC
JM207
R79
5V
R72 1.0K
<1/10W>
C17
+
0.01
<F>
2
1
CHOKE COIL
L=0.3MH 30A
UL1015
AWG14
RED
BLACK
UL1015
AWG14
BROWN
RED
ORANGE
YELLOW
UL1007
AWG24
10K
<1/10W>
x 2
035
0.01
<F>
C95
100P
<CH>
8
VCC
4
DO
7
NC
5
GND
R78
R77
R73 82K
<1/10W>
C16
4.7/50V
<PS>
SUBNCVCC
VOUT
GND
I C6
BD4742G
+
-
R205 10K
R76
5
4
3
R113
1.0K
<1/10W>
R114 27K
<1/10W>
R75
L1
I C414
SACT32010A
ACTPM
5V
R407
R403
036
0.01
<F>
5V
5V
C91
0.01
<F>
<1/10W>
5V
R74
10K
<1/10W> x 6
5V
TERMINAL 2P
EMI FILTER
TFC-25
-15-12
2T
L2
P
N1
18V
1
4
23
I C401
PS2561L-1-V
18V
1
4
2
3
I C404
PS2561L-1-V
5V
R103 4.7K
<1/10W>
Q91
2SC2412K
<BQ>
3
1
2
560 <1/10W>
x 6
C204
1200 450V
WHT
PURPLE
UL1015 AWG14
I C400-1
uPC393
R436
1
3.3K
<1/4W>
I C400-2
uPC393
7
R442
3.3K
<1/4W>
8
6
5
I C13
PS8602
I C11-2
uPC393
R310 - R315
100 <1/10W> x 6
R316 - R321
100 <1/10W> x 6
R85
R84
R83
R82
R81
R80
I C301 - I C306
PS2561L-1-V x 6
R605 22K
<1/10W>
EMI FILTER
RFC-8
1T
YEL
+
BLUE
C409
10/
25V
<PS>
D402
18V
RD3.3ES <B2>
8
C411
2
-
0.01 <F>
3
+
6
-
5
+
A
C412
0.1
<F>
15V
R102
1.6K
<1/4W>
2
1
3
I C11-1
uPC393
6
-
7
+
5V
1
2
1
2
1
2
1
2
1
2
1
2
10K <1/10W> x 5
R604
R20
10K
<1/10W>
TM104
TM105
18V
+
R402 S3.3K
A
R435
R441
A
1.0K
<1/10W> x 2
A
C414
0.01
<F>
C87
470P
<CH>
2
-
3
+
5
5V-2
4
3
4
3
4
3
4
3
4
3
4
3
R322
R21
R602
R603
R201 220K
<2W>
A
<1/4W>
R400
R440
R406
2.87K
R401
2.94K
A
<1/10W>
(1%) x 2
C89
470P
<CH>
R323
R325
R324
330 <1/10W> x 6A
5V
R601
180K <RN - 1/2W>
15V
R326
5V
C116
0.1 <HCP>
(1%) x 2
C88
0.1
<F>
A
R327
1
2
3
4
5
6
7
8
9
10
R140
1.2
<1/2W>
1
1
1
1
1
L100
BARE WIRE
SN-PLATED
DIA 0.65MM
Q1
2SC4236
2
3
D1
DAN217U x 2
D81 D82
2
112
3
R105 2.49K
<1/10W> (1%)
R108 2.87K
<1/10W>
(1%)
5V-2
3
2
3
2
3
2
3
2
3
2
3
Q301
2
Q302
Q303
Q304
Q305
Q306
2SC2412K
<BQ> x 6
CN601
B10B-PASK-1
TAUX
TTXD
TRXD
TMODE
TAUX3
TCK
/ TRES
/ TICS
FH3 PFC5000-0502
F2 250V
<BET> 3.15A
FH4 PFC5000-0502
R2 1.0K
<RS - 3W>
R1
220K
C1 220P
<2W>
<BN>
R3 100
<1W>
1
D2
D1FL20U
D10
RD5.6ES
<B2>
D1FL20U
R4 330
<1/4W>
R104
195K x 6 (1%)
<RN - 1/2W>
R106
3
R328 - R333
1.0K <1/10W> x 6
A
C316
2200P <B> x 6
WHITE
FLASH
C2 0.047
<ECQB>
C3
100/16V
<PJ>
R111
R112
R110
R87 2.94K
<1/10W>
(1%)
R107 680
<1/10W>
(1%)
A
R360
39
<1/2W>
C314
C315
C4
T1
D8
JPZ-200
D1FL20U
1
16
2
15
13
12
10
9
15V
D100
D1FL20U
+
R86
R89
I C101
TA7805
C7
220/
+
35V
<PJ>
195K x 6 (1%)
<RN - 1/2W>
13
3
6
7
8
I
O
G
2
C10
100/16V <PS>
R5 10K
<1/10W>
D7
D1FL20U
+
C406
220/50V
<PJ>
5V-2
C11
0.1
<F>
A
470/25V
<PJ>
D401
D1FL20U
++
+
C5
220/16V
<PJ>
I C8
TA7 805
1
I
2
1
O
G
2
I C407
uPC24M18
12V
5V
O
C6
G
+
100/16V
<PS>
18V
33I
C418
+
10/35V
<PS>
A
R88
5V
I C307
R33
PS2561L-1-V
10K
R40 1.0K
<1/10W>
<1/10W>
C34
15V
330K <1/10W> x 3
U1JU44 x 3
0.1 <F> x 3
R361
D301
C323
C322
D302
R363
C321
R362
D303
15V
A
15V
A
15V
C312
C313
C311
A
C324 - C326
0.1 <F> x 3
C33
0.01
0.01
<F>
<F>
47/35V <PJ> x 3
+
C305C304
+
+
C303
1
2
3
4
5
6
7
8
9
10
11
12
13
I C310
PS21246
UP
VNC
VP I
VUFB
CFO
VUFS
VP
VP I
VVFB
VVFS
WP
VP I
VPC
VWFB
VWFS
R303
4.7K
<1/10W>
C332
0.1
14
VN I
<F>
15
16
C IN
17
18
FO
19
UN
C327
20
VN
0.022
21
WN
<F>
P
22
23
U
24
V
25
W
26
N
A
15V
4
3
5V-2
A
A
5V-2
1
2
R301
R302 1.0K
<1/10W>
C328
2200P
<B>
A
R304
560
<1/10W>
0.02
<5W>
x 2
TM303
W
BLACK
R305
A
TM304
TM305
V
U
RED
WHITE
C M
102005.10.28
Page 12
ERROR CONTENTS
(1) Stop the air conditioner operation.
(2) Press the master control button and the fan control button simultane-
ously for 2 seconds or more to start the test run.
Test run display
(3) Press the start/stop button to stop the test run.
[SELF-DIAGNOSIS]
When the error indication E:EE is displayed, follow the following items
to perform the self-diagnosis. E:EE indicates an error has occurred.
REMOTE CONTROLLER DISPLAY
1) Stop the air conditioner operation.
2) Press the set temperature buttons simultaneously for 5 secÂonds or more to start the self-diagnosis.
Refer to the following tables for the description of each error code.
Unit number (usually 0)
Error code
SUMOTUWETH FR
SA
Ex. Self-diagnosis
(3) Press the set temperature buttons simultaneously for 5 sec-
onds or more to stop the self-diagnosis.
Error code Error contents
00
01
02
03
04
05
06
08
09
0A
0c
0E
11
12
13
14
Communication error
(indoor unit remote controller)
Communication error
(indoor unit outdoor unit)
Room temperature sensor open
Room temperature sensor short-circuited
Indoor heat exchanger temperature sensor open
Indoor heat exchanger temperature sensor shortÂcircuited
Outdoor heat exchanger temperature sensor
Power source connection error
Float switch operated
Outdoor temperature sensor
Discharge pipe temperature sensor
Outdoor high pressure abnormal
Model abnormal
Indoor fan abnormal
Outdoor signal abnormal
Outdoor EEPROM abnormal
Error code Error contents
1A
1b
1c
1d
1E
1F
Compressor does not operat
Outdoor unit fan error
Communication error
(inverter multicontroller)
2 way valve sensor error
Expansion valve error
Connection indoor unit error
e
OUTDOOR UNIT
(1)
Is there any abnormal noise and vibration during operation?
(2)
Will noise, wind or drain water from the unit disturb the
neighbours?
(3)
Is there any gas leakage?
Do not operate the air conditioner in the test running state
for a long time.
OUTDOOR UNIT
Error contents LED (RED)
Serial signal error
Discharge pipe thermistor error
Heat exchanger thermistor error
Outdoor temperature thermistor error
2 - way valve thermistor A, B error
3 - way valve thermistor A, B error
Compressor thermistor error
Pressure switch error
Indoor unit communication error
Current trip error
CT error
Compressor position detection error
Compressor starting error
1 time blink
2 times blink
3 times blink
4 times blink
5 times blink
6 times blink
7 times blink
8 times blink
9 times blink
10 times blink
11 times blink
12 times blink
13 times blink
15
16
17
18
19
Compressor temperature sensor
Pressure switch error
IPM error
CT error
Active filter module (AFM) error
112005.10.28
Timer error
14 times blink
Page 13
DISASSEMBLY ILLUSTRATION
Model : ARH18LUAD
160
587
235
184-1
146
74
173
287
625
381-4
244
762
464
196-2
173
232
588-2
147
588-1
63
761
173
122005.10.28
Page 14
Model : ARH18LUAD
56
109
67
164
138
126
734
338
67
653-1
143-1
56
234
132005.10.28
Page 15
Model : ARH18LUAD
568
143-1
287
380
514
230
195
34
875
455
982-2
982-1
381-4
815-1
240
815-2
142005.10.28
Page 16
Model : ARH24LUAN
324
74
160
764
Insulation
73
20
Control Box
325
75
146
72
Insulation
Insulation
152005.10.28
Page 17
Model : ARH24LUAN
111
139
67
138
40
41
56
108
110
164
150
162005.10.28
Page 18
Model : ARH24LUAN
223
236
553
287
817
816
288
287
875
956
172005.10.28
Page 19
Models : AOH18LMAKL
AOH24LMAKL
734
527
14
7
64
4-1
4
5
2
182005.10.28
Page 20
Models : AOH18LMAKL
AOH24LMAKL
45-3
41
39
33
31
29
16
45-2
45-1
411
109
754
334
344
17
349
26-2
AOH24LMAKL
26-2
AOH18LMAKL
45-4
26-1
55
12
46
108
361
AOH24LMAKL
273-1
273-2
335
273-2
348
273-1
343
346-1
346-2
345-1
345-2
AOH18LMAKL
85
13-3
13-2
192005.11.11
Page 21
PARTS LIST
INDOOR UNIT
When you order parts, please make a photocopy of this page
and fill the number of the parts in the "Order" column.
Ref.
No.
34 Capacitor (Fan Motor) 9703306044
56 Sirocco Fan Assy 9358621004
63 Front Panel Assy 9363723007
67 Rubber (Vibration-proof) 313659068604
Air Filter 9366833017
74
109 Casing Assy 9363322002
126 Motor Fixing Table Assy 9358591000
138 Panel Assy (Motor) 9363401004
143-1 Clamp NK-3N 313361274700
146 Evaporator Assy 9372972014
147 Distributor 9368859008
160 Drain Pan Assy 9364502021
164 Fan Motor Assy 9600778210
173 Hook Metal 9363195002
184-1 Thermistor Spring-A 313728262708
195 Clamp SKB-100 313361275805
196-2 Clamp SKB-150 313035356905
234 Room Temperature Thermistor 9703299018
235 Pipe Temperature Thermistor 9703297090
236 Controller PCB Assy 9704557957
240 Remote Control Unit 9372266014
244 Pipe Cover 9363327007
287 Power Cap 9352173011
338 Motor Fixture 9358594001
380 Locking Spacer 313209391403
381-4 Spacer 0600118075
455 Control Box 9366299004
464 Cover (Cabinet) 9363400007
514 Control Box Cover 9363201000
568 Rubber Bushing 9357376004
Description
Part No.
ARH18LUAD ARH24LUAN
Ord.
Q'ty
Ref.
No.
20 Control Cover-A Sub Assy 9374516018
34 Capacitor (Fan Motor) 9900270209
40 Motor Mount 9374281015
41 Bracket Motor Assy 9374230013
56 Sirocco Fan Assy 9356531022
67 Rubber 313659068604
72 Cabinet-L Sub Assy 9374509010
73 Cabinet-R Sub Assy 9374508013
74 Intake Cover Sub Assy 9374512010
75 Outlet Panel Sub Assy 9374510016
108 Base Sub Assy 9374504015
110 Casing-A 9374233014
111 Casing-B 9374234011
138 Separate Wall Assy 9374228010
139 Panel (Control Box) Sub Assy 9374506019
146 Evaporator Assy 9374518029
150 Bracket (Evaporator)-R 9374207015
160 Drain Pan Sub Assy 9374513017
164 Fan Motor Assy-IN 9600830086
223 Control Box-A 9374219018
236 Controller PCB Assy 9705246126
287 Power Cap 9352173011
324 Main Panel Sub Assy 9374511013
325 Intake Frame Assy 9374216017
553 Power Transformer 9704129017
764 Drain Cap 9356541007
816 Terminal-3P 9703345012
817 Terminal-3P 9306489045
875 Power Supply PCB ASSY 9705668065
956 Control Cover-B 9374222018
Description
Part No.
Ord.
Q'ty
587 Support Plate (Evaporator) 9363404005
588-1 Bracket Evaporator-R 9363199000
588-2 Bracket Evaporator-L 9363198003
625 Cord Bushing 9359240006
653-1 Screw Cap 9385089020
734 Top Panel 9363504002
761 Side panel-R Assy 9363507003
762 Side Panel-L Assy 9363505009
815-1 Terminal-6P 9900016036
815-2 Terminal-3P 9703403019
875 Power Supply PCB Assy 9704560506
982-1 Cord Clamp 9356857009
982-2 Cord Clamp-B 9356858006
202005.11.14
Page 22
OUTDOOR UNIT
When you order parts, please make a photocopy of this page and
fill the number of the parts in the "Order" column.
Ref.
No.
3 Fan Guard 9371187013 9371187013
4 Emblem-Rear 9372171011 9372171011
5 Front Panel, Painted 9371924014 9371924014
7 Connector Cover (Cabinet) 9366398004 9366398004
12 Base Assy, Painted 9371920078 9371920078
13-2 2-Way Valve 9372204054 9372204023
13-3 3-Way Valve 9372205051 9372205075
14 Valve Cover 9372796016 9372796016
15 Condenser Sub Assy 9372313183 9372313183
16 Condenser Assy 9372181096 9372181096
17 Thermistor Holder Pipe 313714262805 313714262805
26-1 Compressor Cover-A 9373730019 9374430055
26-2 Compressor Cover-B 9373730026 9374431052
29 Separate Wall 9372795019 9372795019
31 Controller PCB Assy 9705285033 9705285040
---- ACTPM 9703457012 9703457012
---- Capacitor, Elec. 9705387010 9705387010
33 Control Cover 9372792018 9372792018
---- Fuse 0600086039 0600086039
---- Fuse Holder 0501454012 0501454012
34 Capacitor, Plastic 9704305077 9704305077
---- Terminal-5P 9900203023 9900203023
---- Terminal-2P 9701971015 9701971015
39 Propeller Fan Assy 9366378013 9366378013
41 Fan Motor Assy-IN 9601671046 9601671046
45-1 Motor Bracket 9371929019 9371929019
45-2 Motor Bracket-Top 9371931012 9371931012
45-3 Motor Bracket-Center 9371930015 9371930015
45-4 Motor Bracket-Bottom 9371932019 9371932019
46 Compressor Assy 9373262015 9373262015
Description
AOH18LMAKL
Part No.
AOH24LMAKL
Ref.
Ord.
No.
Q'ty
64 Side Panel-L, Painted 9371926018 9371926018
69-3 Hex. Bolt Socket 301210060360 301210060360
85 Valve Plate, Painted 9371928036 9371928036
108 Rubber Seat (For Comp. ) 9358080009 9358080009
109 Terminal Cover (For Comp. ) 9373264019 9373264019
187 Clip (Cable) 9352715006 9352715006
199 BR Sheet 9363708042 9363708042
218-3 Relay 9900117016 9900117016
273-1 Strainer Assy 9372524015 9372524015
273-2 Joint Pipe (2-Way)-A 9373729549 9373729495
334 Accumulator 9368391003 9368391003
335 Accumulator Holder Rubber 9354022010 9354022010
343 Solenoid 9900165079 9900165079
344 4-Way Valve 9900163013 9900163013
345-1 Muffler 9372369029 9372369029
345-2 Joint Pipe (3-Way) 9373729556 9373729501
346-1 Expansion Valve Assy 9373729518 9373729518
346-2 Coil (Expansion Valve) 9900057022 9900057022
348 Pressure Switch Assy 9373729044 9373729044
349 Capillary Assy 9373729433 9373729433
361 Accumulator Support Assy 9372252017 9372252017
411 Gasket 9373266013 9373266013
527 Protective Net 9371934013 9371934013
734 Top Plate 9371925011 9371925011
754 Rubber Washer 9358078006 9358078006
---- Compressor Presure Switch 9900186012 9900186012
---- Compressor Thermal Switch 9373263012 9373263012
----
Discherge Temperature Thermistor
---- Heart Exchanger Thermistor 9704220059 9704220059
----
Outdoor TemperatureThermistor
Description
9704219039 9704219039
9703516047 9703516047
Part No.
Ord.
AOH24LMAKLAOH18LMAKL
Q'ty
55 Special Nut M8 9355091008 9355091008
---- Heat Sink Thermistor 9900195014 9900195014
212005.11.14
Page 23
STANDARD ACCESSORIES
Models : ARH18LUAD / AOH18LMAKL
INDOOR UNIT ACCESSORIES
Name and Shape Q'ty
Installation
template
Hanger
Tapping screw
( 4 x 10)
Special nut A
(large flange)
Special nut B
(small flange)
Coupler heat
insulation
(large)
Coupler heat
insulation
(small)
Binder
Remote
controller
Application
For positioning the indoor unit
1
For suspending the indoor unit
4
from ceiling
8
For installing the hanger
4
For suspending the indoor unit
from ceiling
4
For indoor side pipe joint
1
(large pipe)
For indoor side pipe joint
1
(small pipe)
(Small)
For remote controller and remote
1
controller cord binding
(Large)
For fixing the coupler heat insulation
4
Heat & Cooling model
1
Part No.
9364225005
9363195002
301171164104
313005446653
313005446759
9350716029
9352766015
313361275805
312300787605
9372266014
Remote
controller cord
Tapping screw
( 4 x 16)
Filter
Drain hose
insulation
1 9372714010
For connecting the remote controller
2
For instaling the remote controller
3
1200 - 22000 BTU/h models
Insulates the drain hose and
1
vinyl hose connection
OUTDOOR UNIT ACCESSORIES
Name and Shape Q'ty Application
Drain pipe
1
For outdoor unit drain piping work
Cap (drain)
[Heat & Cool model
(Reverse cycle) only]
1
0700181108
9366833017
313806217708
Part No.
9303029015
313166024302
222005.11.14
Page 24
Models : ARH24LUAN / AOH24LMAKL
INDOOR UNIT ACCESSORIES
Name and Shape Q'ty
Hanger
Special nut A
(large flange)
Special nut B
(small flange)
Coupler heat
insulation
(large)
Coupler heat
insulation
(small)
Nylon fastener
Remote
controller
Application
For suspending the indoor unit
4
from ceiling
4
For suspending the indoor unit
from ceiling
4
For indoor side pipe joint
1
(large pipe)
For indoor side pipe joint
1
(small pipe)
(Small)
For fixing the remote controller cord
1
(Large)
For fixing the drain hose
4
1
Part No.
9356563009
313005446653
313005446759
9350716029
9352766015
313361275805
312300787605
9372266014
Remote
controller cord
Tapping screw
Drain hose
insulation
1 9372714010
For instaling the remote controller
2
unit cord clamp
Insulates the drain hose and
1
vinyl hose connection
OUTDOOR UNIT ACCESSORIES
Name and Shape Q'ty Application
Drain pipe
1
For outdoor unit drain piping work
Cap (drain)
[Heat & Cool model
(Reverse cycle) only]
1
0700181108
313806217708
Part No.
9303029015
313166024302
232005.11.14
Page 25
0504J2784
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