General AOH18LM, ASHF9LALU, AOH18LMAK2, AOH24LM, AOH24LMAK2 Service Manual
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INVERTER MULTI
AIR CONDITIONER
DUCT TYPE
Indoor unit Outdoor unit
ARHF09LALU AOHA18LAT3
ARHF09LALU AOHA24LAT3
CONTENTS
SPECIFICATIONS
OUTLINE AND DIMENSIONS
REFRIGERANT SYSTEM DIAGRAM
CIRCUIT DIAGRAM
INDOOR PCB CIRCUIT DIAGRAM
OUTDOOR PCB CIRCUIT DIAGRAM
ERROR CONTENTS
PARTS (indoor unit)
PARTS (outdoor unit)
ACCESSORIES
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1
3
5
6
7
10
13
15
18
21
SPECIFICATIONS
INDOOR UNIT
ELECTRICAL DATA
TYPE
COOL & HEAT MULTI
MODEL NAME
POWER SOURCE
FREQUENCY
COOLING CAPACITY
HEATING CAPACITY
MOISTURE REMOVAL
AIR CIRCULATION HIGH
FAN MOTOR
POWER SOURCE
DISCRIMINATION
HIGH SPEED
MIDDLE
FAN SPEED
LOW
QUIET
ARHF09LALU
230 V
50 Hz
2.7 kW
3.3 kW
1.0 L/hr
480 m3/hr
230 V
MFG-09TVL
1,010 r.p.m.
950 r.p.m.
880 r.p.m.
830 r.p.m.
HIGH
MIDDLE
NOISE LEVEL
LOW
QUIET
Note : Static pressure : 0 pa
Duct length : Inlet 1m, Outlet 2m (indoor unit)
35 dB
33 dB
31 dB
30 dB
MEASUREMENT
DIMENSIONS
WEIGHT
H x W x D
Gross / Net
12008.04.30
217 x 663 x 595 mm
22 kg / 18 kg
OUTDOOR UNIT
ELECTRICAL SPECIFICATIONS
TYPE
Colling & Heating
MODEL NAME
COOLING CAPACITY
HEATING CAPACITY
POWER SUPPLY
FREQUENCY
RUNNING CURRENT
INPUT
EER
AIR CIRCULATION HIGH
FAN MOTOR
DISCRIMINATION
HIGH SPEED (COOL)
HIGH SPEED (HEAT)
Cooling
Heating
Cooling
Heating
Cooling
Heating
AOHA18LAT3
5.4 kW
6.8 kW
(220V) - 230V - (240V)
50 Hz
5.9 A
7.1 A
1.35 kW
1.62 kW
4.00 kW/kW
4.20 kW/kW
3,050 m3/hr
MFE-60PO
730 r.p.m.
660 r.p.m.
AOHA24LAT3
6.8 kW
8.0 kW
8.5 A
8.8 A
1.94 kW
2.00 kW
3.50 kW/kW
4.00 kW/kW
3,300 m3/hr
780 r.p.m.
780 r.p.m.
COMPRESSOR AND REFRIGERANT
TYPE
DISCRIMINATION
WEIGHT (with oil)
PRECHARGED REFRIGERANT
REFRIGERANT TYPE
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)
MIN. PIPE LENGTH (each unit)
30 m
40 m
50 m
Hermetic type, Inverter, 4 poles,
3-phase, DC motor, Twin Rotary
DA150A1F-20NA
10.0 kg
2,200 g
R410A
2,200 g
2,400 g
2,600 g
20 g/m
30 m
25 m
50 m
10 m
15 m
5 m
MEASUREMENT
DIMENSIONS
WEIGHT
H x W x D
Net / Gross
700 x 900 x 330 mm
55 kg / 63 kg
22008.05.09
OUTLINE AND DIMENSIONS
INDOOR UNIT
Unit : mm
596
560
390
Drain pipe diameter
Inside : 21.5 mm
Outside : 26.0 mm
663
630
400
150
605
57520
217
2008.04.21
3
OUTDOOR UNIT
(Unit : mm)
900
40
31
330
12
700
21
9
400
650
Air Flow
370
42008.04.21
REFRIGERANT SYSTEM DIAGRAM
OUTDOOR UNIT
Discharge
thermistor
Heat exchanger
Compressor
Accumulator
Pipe
Thermistor
Pressure
switch (A)
Pressure
switch (B)
Expansion
valve
Pipe
Thermistor
Mufller
Pipe
Thermistor
HEAT COOL
4-way valve
Expansion
valve
Pipe
Thermistor
Pipe
Thermistor
Receiver tank
Heat exchanger
Strainer
Distributor
Expansion
valve
Pipe
Thermistor
3-way
valve
Strainer
3-way
valve
2-way
valve
Room
Thermistor
Heat exchanger
Strainer
2-way
valve
Room
Thermistor
Heat exchanger
Strainer
3-way
valve
2-way
valve
Room
Thermistor
Heat exchanger
INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C
52008.04.21
CIRCUIT DIAGRAM
4-WAY VALVE
4WV
CONSTRUCTION
CHECK SWITCH
FAN MOTOR
F M
GREEN
/ YELLOW
1
2
3
4
5
6
7
8 8
INDOOR UNIT OUTDOOR UNIT
BLACK
BLACK
3 2 1
CN30
DC COMPRESSOR
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
1
2
CN12
CN2
CN11
CN9
CN10
1 2
1 2
GRAY
GRAY
1 2
1 2 1 2 1 2
CN5 CN7 CN8
1 2
CONTROLLER
PCB ASSY
( MAIN PCB )
CN4
3 4 5 6 7 8
3 4 5 6 7 8
BLACK
BLACK
CN3
CN15
CN13
CN14
CN6
CN1
123
1 2 3
TERMISTOR
( PIPE TEMP. )
TERMISTOR
( ROOM TEMP. )
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
7
RED
1
1
WHITE
2
2
BLACK
3
3
1
2
1
TERMINAL
2 3
CHOKE COIL
C ( T )
RED
U
W305
C M
WHITE
V
W304
R ( R ) S ( S )
I P M
DIODE
BRIDGE
TERMINAL
BLACK
BLACK
TO REMOTE CONTROL UNIT
GRAY
GRAY
GRAY
GRAY
1 2
3 4 5 6 7 8
1 2
BROWN
1
WHITE
RED
1
2
2
3
3
4
4
5
5
6
6
E101 E102
1
YELLOW
2
3
4
5
6
7
BLACK
3 4 5 6 7 8
CN104 CN101
POWER SUPPLY
CN105
PCB ASSY
CN102 CN103
1 2
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
1 2
3
1 2
3
RED
W105
WHITE
W102
BLACK
W102
1
CN106
1 2
3
1
2
2 3
TERMINAL
FUSE
250V 10A
BLACK
1 2 3
GREEN
GREEN
TERMINAL
UNIT A
DC FAN MOTOR
F M
BLACK
RED
BLACK
2 3 4 5 6 7 1 2 1 2 1 2 1 2 1 2
1
W
W303
CN800
WHITE
W17 W16
BLACK
+
-
RED
ACTIVE
FILTER
MODULE
WHITE
BROWN
EMI FILTER EMI FILTER
WHITE
1 2 3 1 2 3
UNIT B
WHITE
BROWN
YELLOW
YELLOW
6
ORANGE
3
RED
2
BROWN
1
EMI FILTER
2T
WHITE
BLACK
UNIT C
HEAT SINK TEMP.
THERMISTOR
BLACK
RED
CN25
BLACK
W12
YELLOW
W13
BLUE
W200
YELLOW
COMPRESSOR TEMP.
THERMISTOR
BROWN
CN26
GREEN
2 3 4 5
1
CN407
WHITE
W201 W202
PINK
WHITE
OUTDOOR TEMP.
THERMISTOR
BLUE
CN23
BLUE
F2 FUSE
T 3.15A 250V
W11 W10
WHITE
TM102 TM101
W3
GREEN
PIPE TEMP.
THERMISTOR
BLACK
CN22
RED
CONTROLLER PCB ASSY
BLACK
POWER SUPPLY
PCB ASSY
W6
BLACK
SW150
DISCHARGE TEMP.
THERMISTOR
BROWN
CN21
YELLOW
( MAIN PCB )
LED1
LED2
D150
D151
CN1
1 3 4
RED
BLACK
BROWN
1 2 3
CN1
WHITE
W7
WHITE
FUSE
250V
25V
CURRENT
CHANGE
3 2 1
F2 FUSE
T 5A 250V
LED3
D152
CN34
YELLOW
3 2 1
BLACK
W8 W9
W4 W5
WHITE
BLACK
SW1
WHITE
AC I N
EMI FILTER
RED
1
CN37
RED
2
RED
WHITE
1
CN36
CN27
RED
CN39
CN40
CN50
CN51
WHITE
2
RED
1
BROWN
2
BLUE
3
ORANGE
4
YELLOW
5
WHITE
6
BLACK
1
WHITE
3
WHITE
4
WHITE
5
WHITE
6
WHITE
7
WHITE
8
WHITE
9
BLACK
1
RED
2
RED
4
RED
5
RED
6
RED
7
RED
8
RED
9
BLACK
1
WHITE
2
WHITE
4
WHITE
5
WHITE
6
WHITE
7
BLACK
1
GREEN
3
GREEN
4
GREEN
5
GREEN
6
GREEN
7
WHITE
WHITE
GREEN
WHITE
WHITE
WHITE
2T
WHITE
WHITE
PRESSURE SWITCH 1
PRESSURE SWITCH 2
EXPANSION VALVE A
E V
THERMISTOR ( VALVE )
1
1
BLACK
2
2
3
3
BLACK
4
4
5
5
BLACK
6
6
7
7
BLACK
8
8
THERMISTOR ( VALVE )
1
1
BLACK
2
2
3
3
BLACK
4
4
5
5
6
6
7
7
8
8
RED
RED
1
1
BROWN
2
2
BLUE
3
3
ORANGE
4
4
YELLOW
5
5
WHITE
6
6
RED
1
1
BROWN
2
2
BLUE
3
3
ORANGE
4
4
YELLOW
5
5
WHITE
6
6
2WV-A
3WV-A
2WV-B
3WV-B
2WV-C
3WV-C
EXPANSION VALVE B
E V
EXPANSION VALVE C
E V
2008.03.18 6
TERMINAL
L N
POWER SOURCE
INDOOR PCB CIRCUIT DIAGRAM
CONTROL UNIT
EZ-0070RHSE
3
2(N)
1
TERMINAL BOARD
UL1015 AWG20
BLACK
UL1015 AWG20
WHITE
UL1015 AWG20
OUTDOOR UNIT
RED
TEST
FLASH
CN2-1
CN2
CN2-2
CN2-3
B5P-SHF-1AA
CN2-4
WHITE
CN2-5
CONTROLLER PCB ASSEMBLY
( MAIN PCB )
K06AK-0707HSE-C1
CN15-1
CN15-2
CN15
CN15-3
B06B-XASK-1-A
CN15-4
WHITE
CN15-5
CN15-6
CN8
B02B-XASK-1-A
WHITE
CN7
B02B-XAYK-1-A
YELLOW
CN5
B02B-XAKK-1-A
BLACK
CN13
B07B-PASK-1
WHITE
CN8-1
CN8-2
CN7-1
CN7-2
CN5-1
CN5-2
CN13-1
CN13-2
CN13-3
CN13-4
CN13-5
CN13-6
CN13-7
BLACK
BLACK
GRAY
GRAY
THERMISTOR
( ROOM TEMP. )
THERMISTOR
( PIPE MID. TEMP. )
DC FAN MOTOR
F M
1
2
3
4
5
6
7
8
UL1015 AWG22 RED
UL1015 AWG22 BLACK
UL1015 AWG22 WHITE
UL1015 AWG22 YELLOW
UL1015 AWG22 BROWN
EMI FILTER
ZCAT1518-0730
1 T
UL1015 AWG16
GREEN
UL1015 AWG16
GREEN
DRAIN PUMP
E I B OUT
E101
E102
CN105-6
CN105-5
CN105-4
CN105-3
CN105-2
CN105-1
CN106-1
CN106-2
CN103-1
CN103-2
W101
W105W102
POWER SUPPLY PCB ASSEMBLY
K06AL-0602HSE-P0
CN105
B5P6-VH-B
WHITE
CN106
B2P3-VH-B-E
BLUE
CN103
B2B-XH-AM
WHITE
CN104
B08B-PASK-1
WHITE
CN101
B03B-PASK-1
WHITE
CN104-1
CN104-2
CN104-3
CN104-4
CN104-5
CN104-6
CN104-7
CN104-8
CN101-1
CN101-2
CN101-3
POWER 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
DC SUPPLY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
EMI FILTER
ZCAT1518-0730
2 T
SP PCB
CN3-1
CN3-2
CN3-3
CN3-4
CN3-5
CN3-6
CN4-1
CN4-2
CN4-3
CN4-4
CN4-5
CN4-6
CN4-7
CN4-8
CN1-1
CN1-2
CN1-3
CN3
B06B-PASK-1
WHITE
CN4
B08B-PASK-1
WHITE
CN1
B03B-PASK-1
WHITE
CN14
B03B-XAKK-1
BLACK
CN6
B02B-PAMK-1
GREEN
CN10
B02B-PAOK-1
ORANGE
CN11
B05B-XASK-1
WHITE
CN12
B05B-XARK-1-A
CN9
B03B-XARK-1-A
CN14-1
CN14-2
CN14-3
UL1430 AWG22
WHITE
UL1430 AWG22
BLACK
3 2 1
RED
CN6-1
CN6-2
FRESH AIR
UL1430 AWG22
TERMINAL BOARD
CN10-1
CN10-2
CN11-1
CN11-2
CN11-3
CN11-4
CN11-5
CN12-1
CN12-2
CN12-3
RED
CN12-4
CN12-5
CN9-1
CN9-2
RED
CN9-3
HEATER
EARTH WIRE
LOUVER ( UP / DOWN )
REMOTE CONTROL
LOUVER ( RIGHT / LEFT )
FLOAT SWITCH
CN102-1
CN102
E I B I N
CN102-2
CN102-3
B3B-XH-AM
WHITE
2008.04.03 7
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