General AOH30LM Service Manual
INVERTER MULTI
AIR CONDITIONER
FLOOR CONSOLE /
UNDER CEILING
DUAL type
Models
Indoor unit Outdoor unit
ABH14LBAJ
ABH18LBAJ
ABH24LBAJ
AOH30LMAW4
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . 1
OUTLINE AND DIMENSIONS . . . . . . . . . . . 3
REFRIGERANT SYSTEM DIAGRAM . . . . . 5
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . 6
INDOOR PCB CIRCUIT DIAGRAM . . . . . . 8
OUTDOOR PCB CIRCUIT DIAGRAM . . . . 9
ERROR CONTENTS . . . . . . . . . . . . . . . . . . 12
DISASSEMBLY ILLUSTRATION . . . . . . . . . 13
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . 25
SPECIFICATIONS
TYPE
INDOOR UNIT
ELECTRICAL DATA
POWER SOURCE
FREQUENCY
AIR CIRCULATION-Hi
FAN MOTOR
POWER SOURCE
DISCRIMINATION
INDOOR UNIT
DIMENSIONS
WEIGHT
HI-SPEED (r.p.m.)
MED-SPEED (r.p.m.)
LO-SPEED (r.p.m.)
H x W x D
GROSS / NET (kg)
(V)
(Hz)
(m /hr)
(V)
(mm)
ABH14LBAJ
640
MFA-14JTT
850
760
670
Cool and Heat
ABH18LBAJ
230
50
780
230
1,030
890
770
199 x 990 x 655
37 / 28
ABH24LBAJ
880
MFA-24JTTMFA-18JTT
1,180
1,040
900
12005.05.19
OUTDOOR UNIT
TYPE Cooling & Heating
MODEL NAME
COOLING CAPACITY (kW)
HEATING CAPACITY (kW)
ELECTRICAL SPECIFICATIONS
POWER SUPPLY (V)
FREQUENCY (Hz)
RUNNING
CURRENT
INPUT (kW)
EER (kW/kW)
AIR CIRCULATION - Hi
(A)
COOLIING
HEATING
COOLIING
HEATING
COOLIING
HEATING
(m3/hr )
COMPRESSOR
TYPE
AOH30LMAW4
8.0
9.6
(220) - 230 - (240)
50
9.7
10.5
2.22
2.40
3.60
4.00
3,300
Hermetic type, Inverter, 4 poles,
3-phase, DC motor, Twin Rotary
DISCRIMINATION
REFRIGERANT R410
FAN MOTOR
DISCRIMINATION
( r.p.m. )HI-SPEED ( COOL / HEAT )
DIMENSIONS
H x W x D (mm)
NET / GROSS
REFRIGERANT CHARGE (R410A)
Total Pipe Length
FULL CHARGE AMOUNT
ADDITIONAL CHARGE
CHARGELESS
MAX PIPE LENGTH (each unit)
MAX PIPE LENGTH (total)
MAX ELEVATION (between indoor units)
MAX ELEVATION (between indoor and outdoor units)
MIN. PIPE LENGTH (each unit)
50.0 m
60.0 m
70.0 m
( g )
(kg)WEIGHT
TNB220FPBM9
3,300
MFE-60PO
820 / 780
830 x 900 x 330
68 / 78
3,300 g
3,550 g
3,800 g
25 g / m
50 m
25 m
70 m
10 m
10 m
5 m
22005.05.19
OUTLINE AND DIMENSIONS
Unit : mm
INDOOR UNIT
Models : ABH14LBAJ, ABH18LBAJ, ABH24LBAJ
655
(rear view)
990
500
900
199
200175
530
32005.05.19
OUTDOOR UNIT
(Unit : mm)
Model : AOH30LMAW4
900
40 31 330
12
830
21
9
400
650
Air Flow
370
42005.05.19
REFRIGERANT SYSTEM DIAGRAM
Outdoor unit
THERMISTOR (DIS.TEMP)
THERMIS
-TOR
PIPE
(A-3WV)
COMPRESSOR
ACCUMULATOR
EXPANSION
VALVE
THERMISTOR
PIPE (A-2WV)
OIL BACK
CAPILLARY
PRESSURE SWITCH(A)
PRESSURE SWITCH(B)
THERMIS
-TOR
PIPE
(B-3WV)
OIL SEPARATOR
EXPANSION
VALVE
THERMISTOR
PIPE (B-2WV)
4-WAY VALVE HEAT COOL
THERMIS
-TOR
PIPE
(C-3WV)
HEAT EXCHANGER
RECEIVER TANK
HEAT EXCHANGER
EXPANSION
VALVE
THERMISTOR
PIPE (C-2WV)
THERMIS
-TOR
PIPE
(D-3WV)
CAPILLARY
TUBE
STRAINER
DISTRIBUTOR
EXPANSION
VALVE
THERMISTOR
PIPE (D-2WV)
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
Indoor unit A Indoor unit B Indoor unit C Indoor unit D
52005.04.11
CIRCUIT DIAGRAM
Models : ABH14LBAJ
ABH18LBAJ
ABH24LBAJ
62005.05.19
Model : AOH30LMAW4
INDOOR
UNIT A
INDOOR
UNIT B
INDOOR
UNIT C
TO POWER
SOURCE
INDOOR
UNIT D
72005.05.19
INDOOR PCB CIRCUIT DIAGRAM
CONTROLLER PCB ASSY ( MAIN PCB )
Models : ABH14LBAJ
ABH18LBAJ
ABH24LBAJ
R1 3.3
<RC-5W>
FH101
F101
L
TM101
W102
UL1015 AWG14 BLACK
UL1015 AWG14 RED
UL1015 AWG14 WHITE
POWER SOURCE
220 / 240V
50Hz
OUTDOOR UNIT
<BET>
N
E101 W103
UL1015 AWG16
GREEN
FAN CAPACITOR
450V
2.3uF
FAN MOTOR
F M
YELLOW / GREEN
1
2(N)
3
E
3.15A
SA101
<3600>
D1
D3SB60
C5
100/
450V
FH102
VA102
470V
W104
UL1015
AWG18 BLACK
UL1015 AWG18 WHITE
UL1015 AWG20 WHITE
UL1015 AWG20 WHITE
BLACK
WHITE
RED
PINK
PURPLE
BLUE
C6
4700P
<ECQM>
R4 330K
<SPRH-2W>
Q1
2SC4236
R3 100
<1/10W>
Q2
2SC1815
R2
+
1.5
<RS-2W>
R7
330
<1/4W>
ELF17N015A
LF101
VA101
470V
POWER SUPPLY PCB
K01AL-0408HSE-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
DRAIN PUMP
CN6-2
CN6-1
CN6 B2P3-VH-B-E BLUE
D5
1SR139-600
D10
1SR139-600
C7 0.047
<ECQB>
D2
D1FL20U
D3
MTZJ5.1B
C103
0.01
C104
0.01
C3 0.22 <RE>
R88 120 <1/2W>
R5
62K
<RS-2W>
R6 100
<1/2W>
D4
D1FL20U
C8
100/
+
6.3V
JM6
C101
0.22
K2
G5SB-14K1G5SB-14
K3
G5SB-14
K4
G5NB-1A
SW1
DSS803
No.1
No.2
No.3
CUSTOM CODE SWITCHING
CUSTOM CODE SWITCHING
CUSTOM CODE SWITCHING
SWITCHING TRANSFORMER
T1
ZFT29B01
JM1
JM2
JM3
D6
D2FL20U
C9
1000
/25V
+
PRIMARY SECONDARY
C54
0.01
<F>
VA1 470V
<TNR>
C 1
SW2
DRS4016-5
18
14
10
5V
SSR1
G3MC-201PL-VD
+
-
VA2
470V
<TNR>
5V
R21 R22 R23 R24
CN9-1
CN9-2
CN9-3
TEST
CN9-4
CN9-5
CN9
B5P-SHF-1AA
WHITE
AUTO RESTART
ROOM TEMPERATURE CORRECTION
( HEATING OPERATION )
ROOM TEMPERATURE CORRECTION
( HEATING OPERATION )
R17
14V
R8 10K
<1/10W>
5V
10K <1/10W> x 4
R30
R29
8
4
2
I C 10 H I 2002
R93 10K <1/10W>
R94 10K <1/10W>
R95 10K <1/10W>
R96 10K <1/10W>
14V
10K <1/10W> x 4
5V
R38 R37
5V
R15R16
10K <1/10W> x 3
I C2
7812
I O
G
C11
10/
25V
I C3
7805
I O
G
C13
0.1
<F>
R31 R32
0.01 <F> x 4
I C5 (5/7)
uPA2003GR
11
12 5
K 2
13
K 1
14153
K 3
K 4
12
13
14
15
10K <1/10W> x 3R39
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 R98 R99
5V
C14
100/
6.3V
R34
R35
R36
5V
1
1087
5
2
3
R10
10K
<1/10W>
4
C17
0.01
<F>
14V
9
6
4
2
5
4
3
2
I C6 (4/7)
uPA2003GR
R25
R26
R27
R28
1.0K <1/10W> x 4
0.01 <F> x 3
ABH14LBAJ : K01AL-0414HSE-C1
ABH18LBAJ : K01AL-040DHSE-C1
ABH24LBAJ : K01AL-0408HSE-C1
76
C21 C20 C19
0.01 <F> x 3
10K <1/10W> x 4
C15
+
0.1
<F>
JM10
NC
1.0K <1/10W> x 4R33
C26 C27 C28
I C5 (1/7)
uPA2003GR
R14 10K
<1/10W>
5V
R9 390
<1/10W>
Q3
DTC124EKA
C23
C22
C24 C25
R28
0.01 <F> x 4
C10 C12 C30
C47
0.1
<F>
C29
CR1
0.01
<R>
CR6
0.01
<R>
1
P15
2
P16
3
P17
54
P122
55
P123
66
P05
65
P04
74
VDD0
68
VDD1
75
AVRF0
7
AVRF1
4
AVSS
67
VSS0
33
VSS1
71
I C
72
XT2
56
P124
57
P125
58
P126
59
P127
41
P65
42
P66
63
P02
40
P64
39
P63
38
P62
37
P61
36
P60
52
P120
51
P37
49
P35
48
P34
P67
43
44
P30
45
P31
46
P32
19
P40
20
P41
21
P42
X1
1
I C 1
uPD780058GC
-108-8BT-01
RESET
X2
6970
2
P10
P11
P70
P71
P72
P131
XT1
P46
P47
P57
P56
P36
P33
P50
P27
P26
P25
P22
P21
P20
P130
P51
P52
P53
P54
P55
P01
P00
P121
P03
P12
P13
P14
P45
P44
P43
P24
P23
C32
1000P
<R>
77
C35
1000P
<R>
8
9
10
6
R77 R78 R79
10K <1/10W> x 3
73
25
26
35
34
50
47
27
18
17
16
13
12
11
5
28
29
30
31
32
62
61
Q5
2SC2712
53
64
CR7
0.01
<F>
78
79
80
CR2
24
23
22
C16
C31
15
14
60
C44
0.1
<F>
3
X1
CSTS0500MG03-T
5V
I C6 (1/7)
uPA2003GR
CR3
5V
R50 10K <1/10W>
14V
1916
107
6
5 12
14V
9
4 13
3
2 15
1 16
R60
10K
<1/10W>
3
1
Q6
2SC2712
2
R67 1.0K
<1/10W>
CR4
10K <1/10W> x 3
R81 1.0K <1/10W>
R72 1.0K <1/10W>
R71 1.0K <1/10W>
C43
0.01 <F> x 3
R55
10K
<1/10W>
I C8
PST600C
R44 1.0K <1/10W>
R44 1.0K <1/10W>
4
DO
VCC
3
D I
NC
2
CK
NC
1
CS
GND
I C7
BR93L46RF
11
I C6 (2/7)
1616
uPA2003GR
I C5 (1/7)
uPA2003GR
11
14
8
I C4 (7/7)
uPA2003GR
C40
0.01
<F>
5V
R61
10K
<1/10W>
3
1
2
R65 390
<1/10W>
107
5V
R68 1.0K
<1/10W>
C1
0.1
R70 R69 R80
<F>
5V
1
3
2
5V
8
7
C39
0.1
6
<F>
5
R57 1.0K
R56
<1/10W>
R51 1.0K <1/10W>
CR5
1000P
<R>
R62 4.7K
<1/10W>
7
I C11-2
BA10358
R75
10K
<1/10W>
C45
0.1
<F>
R43
10K (1%)
<1/10W>
R45
49.9K (1%)
<1/10W>
R58
10K
R100
<1/10W>
10K
<1/10W>
B Z
BZ1
PKM13EPY-4000
R53
10K
<1/10W>
R54 47 <1/10W>
R63
15.4K (1%)
<1/10W>
12V
5
+
6
-
5V
10K <1/10W> x 3
SW4
DSS803
C34
0.1
<F>
C37
0.1
<F>
5V
14V
12V
R64
28K (1%)
<1/10W>
R66
12V
10K
<1/10W>
D7
DA226U
1
FAN DELEY SWITCHING
( HEATING OPERATION )
No.3
FAN TYPE SWITCHING
No.2
No.1
REMOTE TYPE SWITCHING
5V
C49
0.01
<F>
Q4
DTC124EKA
C38
0.01
<F>
5V
R52
10K
<1/10W>
12V
I C11-1
BA10358
3
+
2
-
R76
10K
<1/10W>
R49 1.0K
<1/10W>
14V
5V
C41
+
10/
25V
L2
L4
L3
RJ1 1.0K
<1/10W>
5V
R48 10K
<1/10W>
CN13-1
CN13-2
CN13-3
CN13-4
CN13-8
CN13-5
C42
0.01
<F>
CN13-7
CN13-6
CN17-1
CN17-2
CN17-3
5V
CN8
CN7
5V
RJ2
10K
<1/10W>
CN15-1
CN15-2
CN15-3
C15
B3B-XARK-1-A
RED
CN14
5V
R47 390
<1/10W>
CN10
CN10-1
CN10-2
CN10-3
CN10-4
CN10-5
CN11-1
CN11-2
CN11-3
CN11-4
CN11-5
CN11
B5B-XARK-1-A
RED
UL1430 AWG28 UL1430 AWG28
BROWN
RED
ORANGE
YELLOW
GRAY
WHITE
PURPLE
BLUE
CN13
B8B-XASK-1-A
DISPLAY BOARD
CN17
B3B-XAKK-1-A
BLACK
B2B-XASK-1-A
CN8-1 BLACK
CN8-2 BLACK
B2B-XAKK-1-A BLACK
CN7-1 GRAY
CN7-2 GRAY
FLOAT SWITCH
B4B-XH-AM
CN14-4
CN14-3
HA
JEM-A
CN14-2
CN14-1
B5B-XASK-1-A WHITE
BROWN
RED
ORANGE
YELLOW
WHITE
BROWN
RED
ORANGE
YELLOW
WHITE
UL1430
AWG28
BROWN
RED
ORANGE
YELLOW
GRAY
WHITE
PURPLE
BLUE
BROWN
RED
ORANGE
YELLOW
WHITE
BROWN
RED
ORANGE
YELLOW
WHITE
1
2
3
4
8
5
7
6
CN201
8P-JC
ROOM TEMPERATURE THERMISTOR
PIPE TEMPERATURE THERMISTOR
M
M
R201 330 <1/4W>
R202 330 <1/4W>
R203 330 <1/4W>
R204 330 <1/4W>
SW201
MANUAL AUTO
SWITCH
EVQ PAG 04K
D201 SLR-325 <RED>
D202 SLR-325 <GRN>
D203 SLR-325 <ORG>
D204 SLR-325 <ORG>
C202
+
10/
25V
INDICATOR PCB
EZ-0964HSE-D
LOUVER
( UP / DOWN )
LOUVER
( RIGHT / LEFT )
5V
C201
0.1
PHA201
<F>
OPERATE
TIMER
LOUVER
LOUVER
OUT
SBX1810
-22
82005.05.19
OUTDOOR PCB CIRCUIT DIAGRAM
Model : AOH30LMAW4
UL1015
AWG14
BLACK
UL1015
L
AC230V
50Hz
INDOOR UNIT-A
INDOOR UNIT-B
INDOOR UNIT-C
INDOOR UNIT-D
AWG14
WHITE
N
UL1015
AWG20
BLACK
L
N
3
UL1015
L
AWG20
BLACK
UL1015
N
AWG20
WHITE
3
UL1015
L
AWG20
BLACK
N
3
UL1015
L
AWG20
PINK
UL1015
N
AWG20
BROWN
3
UL1015
AWG20
BLACK
UL1015
AWG20
WHITE
EMI FILTER
ZCAT1518
-0730
1 TURN
UL1015
AWG20
YELLOW
UL1015
AWG20
WHITE
F201
TLC 25A-250V, B
<250V 25A>
F202
FSL 250 10 (EM)
<250V 10A>
UL1015
AWG20
RED
UL1015
AWG20
WHITE
EMI FILTER
ZCAT1518-0730
1 TURN
UL1015
AWG14
BLACK
UL1015
AWG16
GREEN
UL1015
AWG20
BLACK
CHOKE COIL
L=0.3mH 30A
INVERTER ASSEMBLY
EZ-004HHUE
UL1015
W10
B
B
CN34
B2P3-VH-B-Y
YELLOW
1
AC I N
3
CN1
03 XA / 172520 1007 L180
WHITE
1
CT
3
4
W9
W8
B
B
2
3
UL1015 AWG14 BLACK
UL1015 AWG14 WHITE
UL1015 AWG20 WHITE
UL1015 AWG20 BLACK
UL1007 AWG24 BLACK1
UL1007 AWG24 BROWN
UL1007 AWG24 RED
EMI FILTER
TFC25-15-12
2 TURN
B
W4
B
W6
B
W5
W7
B
W3
B
E
POWER SUPPLY PCB
K04BA-0402HUE-P0
03 VH / S I N
1015 L250
CN1
B3B-XASK-1-A
WHITE
TM101
TM102
CT OUT
W16
W17
AWG14
RED
B
UL1015
AWG14
BLACK
B
-
UL1015
AWG14
WHITE
L1 L2
ACTPM
I C404
SACT32010A
UL1015
AWG14
BROWN
P+
N1
N2
I O
1
2
3
4
5
6
UL1015 AWG14 YELLOW
UL1015 AWG14 BLUE
EMI FILTER
TFC25-15-12
2 TURN
UL1007 AWG24 BROWN
UL1007 AWG24 RED
UL1007 AWG24 ORANGE
UL1007 AWG24
YELLOW
W12
B
W13
B
CN407
06 PH / 172520 1007 L480
1
WHITE
3
4
5
ACTPM CONTROL
W305
W304
W303
B
B
B
RED
WHITE
BLACK
UL1015 AWG14 x 3
2
3
1 1
2
3
RED
WHITE
BLACK
C. M.
COMPRESSOR
DC FAN MOTOR
EXPANSION VALVE-A
EXPANSION VALVE-B
EXPANSION VALVE-C
EXPANSION VALVE-D
PRESURE SWITCH-1
PRESURE SWITCH-2
COMP. TEMPERATURE
HEAT SINK TEMPERATURE
DISCHARGE TEMPERATURE
PIPE TEMPERATURE
OUTDOOR TEMPERATURE
2-WAY VALVE-A TEMP.
3-WAY VALVE-A TEMP.
2-WAY VALVE-B TEMP.
3-WAY VALVE-B TEMP.
2-WAY VALVE-C TEMP.
3-WAY VALVE-C TEMP.
2-WAY VALVE-D TEMP.
3-WAY VALVE-D TEMP.
M
M
M
4-WAY VALVE
F. M.
M
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
RED
YELLOW
BLUE
BLACK
GRAY
BROWN
ORANGE
GREEN
BLACK
WHITE
WHITE
WHITE
WHITE
WHITE
BLACK
GREEN
GREEN
GREEN
GREEN
GREEN
BLACK
BLUE
BLUE
BLUE
BLUE
BLUE
BLACK
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
BLACK
RED
RED
RED
RED
RED
RED
RED
RED
BLACK
WHITE
YELLOW
BROWN
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
BLACK
BLACK
RED
RED
RED
RED
BROWN
BROWN
BLACK
BLACK
BROWN
BROWN
BLACK
BLACK
BLUE
BLUE
B
W200
SERIAL-A
B
W201
SERIAL-B
B
SERIAL-C
W202
B
W203
SERIAL-D
1
CN800
2
3
B7B-XASK-1-A
4
WHITE
5
6
7
1
CN27
2
3
B6B-XARK-1-A
4
RED
5
6
1
CN50
2
06 XA / 172520 1007
4
WHITE
5
6
7
1
CN51
3
06 XA / 172520 1007
4
GREEN
5
6
7
1
CN52
2
06 XA / 172520 1007
BLUE
5
6
7
8
1
CN30
3
179844-1 WHITE
1
CN37
2
B2B-XARK-1-A RED
1
CN36
2
B2B-XASK-1-A WHITE
1
CN26
2
B2B-XAMK-1-A GREEN
CN25
1
2
B2B-XAKK-1-A BLACK
1
CN21
2
B2B-XH-AM YELLOW
1
CN22
2
B2B-XH-AM RED
CN23
1
2
B2B-XAEK-1-A BLUE
1
CN39
3
08 XA / 172520 1007
4
WHITE
5
6
7
8
9
1
CN40
2
08 XA / 172520 1007
4
RED
5
6
7
8
9
CONTROLLER PCB ASSEMBLY
K04AW-0404HUE-C1
SUB-FLASH
MAIN-FLASH
CN602
B10B-PASK-1
WHITE
CN601
B10B-PASK-1
WHITE
1
5V
2
GND
3
TAUX
4
TTXD
5
TRXD
6
TMODE
7
TAUX3
8
TCK
/ TRES
9
10
/ T I CS
1
5V
2
GND
3
TAUX
4
TTXD
5
TRXD
6
TMODE
7
TAUX3
8
TCK
/ TRES
9
10
/ T I CS
92005.05.19
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