General AOHA18LAT3, AOHA24LAT3 Service Manual
INVERTER MULTI
AIR CONDITIONER
WALL MOUNTED type
Models
Indoor unit Outdoor unit
ASHA07LACM
ASHA09LACM
ASHA12LACM
ASHA07LACM
ASHA09LACM
ASHA12LACM
CONTENTS
AOHA18LAT3
AOHA24LAT3
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)
STANDARD ACCESSORIES
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1
3
5
6
8
11
14
16
19
22
SPECIFICATIONS
INDOOR UNIT
ELECTRICAL DATA
TYPE
COOL & HEAT
INDOOR UNIT
COOLING CAPACITY
HEATING CAPACITY
MOISTURE REMOVAL
AIR CIRCULATION HIGH
FAN MOTOR
POWER SOURCE
Discrimination
High
FAN SPEED
( cool / heat )
Meddle
Low
Quiet
NOISE LEVEL
HIGH
QUIET
0.8 L/hr 1.0 L/hr
1,140 / 1,140 r.p.m.
1,000 / 1,050 r.p.m.
880 / 980 r.p.m.
700 / 800 r.p.m.
35 dB
21 dB
1,220 / 1,220 r.p.m.
1,060 / 1,110 r.p.m.
900 / 1,040 r.p.m.
ASHA09LACMASHA07LACM
2.7 kW2.3 kW
3.3 kW2.7 kW
550 m3/hr500 m3/hr
230 V
MFD-34ROM
720 / 830 r.p.m.
38 dB
22 dB
ASHA12LACM
3.5 kW
4.0 kW
1.2 L/hr
580 m3/hr
1,280 / 1,320 r.p.m.
1,100 / 1,180 r.p.m.
900 / 1,080 r.p.m.
750 / 860 r.p.m.
39 dB
23 dB
2007.04.26
MEASUREMENT
DIMENSIONS
WEIGHT
H x W x D
Gross / Net 12 kg / 9 kg
1
275 x 790 x 215 mm
OUTDOOR UNIT
ELECTRICAL SPECIFICATIONS
TYPE
MODEL NAME
COOLING CAPACITY
HEATING CAPACITY
POWER SUPPLY
Colling & heating multi Colling & heating multi
AOHA18LAT3
5.4 kW
6.8 kW
(220V) - 230V - (240V)
AOHA24LAT3
6.8 kW
8.0 kW
(220V) - 230V - (240V)
FREQUENCY
RUNNING CURRENT
INPUT
EER
AIR CIRCULATION HIGH
FAN MOTOR
DISCRIMINATION
HIGH SPEED (COOL)
HIGH SPEED (HEAT)
NOISE LEVEL
COOL
HEAT
MEASUREMENT
DIMENSIONS
Cooling
Heating
Cooling
Heating
Cooling
Heating
H x W x D
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
730 r.p.m.
660 r.p.m.
48 dB
49 dB
700 x 900 x 330 mm
50 Hz
8.5 A
8.8 A
1.94 kW
2.00 kW
3.50 kW/kW
4.00 kW/kW
3,300 m3/hr
MFE-60POMFE-60PO
780 r.p.m.
780 r.p.m.
50 dB
51 dB
Net / Gross
COMPRESSOR AND REFRIGERANT
COMPRESSOR TYPE
DISCRIMINATION
WEIGHT (with oil)
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
55 kg / 63 kgWEIGHT
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
2007.04.28
2
DIMENSIONS
INDOOR UNIT
(unit : mm)
275
215790
2007.04.18
3
OUTDOOR UNIT
(Unit : mm)
40900
33031 12
700
21
9
400
650
2007.04.18
Air Flow
370
4
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
2007.04.18
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
5
CIRCUIT DIAGRAM
INDOOR UNIT
CN201
1
WHITE
2
WHITE
3
WHITE
4
WHITE
5
WHITE
6
WHITE
7
YELLOW
WHITE
FAN MOTOR
F M
BLACK
RED
BLUE
RED
1
1
2
2
3
3
CN3
4
4
5
5
6
6
7
7
1
1
2
2
3
3
CN1
4
4
5
5
6
6
CN10
CN2
CN6
1
2
3
4
5
1
2
3
4
5
1
2
RED
1
ORANGE
2
YELLOW
3
PINK
4
BLUE
5
BLACK
BLACK
1
1
2
2
3
3
M
STEP MOTOR
4
4
5
5
PIPE TEMPERATURE
THERMISTOR
GRAY
GRAY
FUSE 102
2
1
TERMINAL
BLACK
1
CN5
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
SWITCH
POWER CIRCUIT
3
3
CN7
2
1
T 3.15A 250V
W2
BLACK
1 2
VARISTOR
F1 FUSE
W1 W3
WHITE
3THERMAL
W4
RED
2
BLACK
GREEN
ROOM TEMPERATURE
THERMISTOR
2007.04.18
6
OUTDOOR UNIT
DC
COMPRESSOR
U V
RED
U
W305
BLACK
BLACK
CHOKE COIL
250V 10A
W
WHITE
V
W304
I P M
DIODE
BRIDGE
TERMINAL
WHITE
BROWN
FUSE
BLACK
1 2 3 1 2 31 2 3
U N I T A
TERMINAL
BLACK
RED
1
W
W303
W17 W16
ACTPM
L1
L2
EMI
FILTER
WHITE WHITE
DC
FAN MOTOR
F M
BLACK
WHITE
2 3 4
5 6 7
CN800
WHITE
RED
BLACK
P
N1
EMI
FILTER
BLACK
YELLOW
BROWN
6
3
2
1
EMI
FILTER
2T
U N I T CU N I T B
HEAT SINK
YELLOW
ORANGE
RED
BROWN
THERMISTOR
BLACK
2
1
CN25
BLACK
W12
YELLOW
W13
BLUE
W200 W201
RED
YELLOW
COMPRESSOR
THERMISTOR
BROWN
2 1 2 1
1
CN26
GREEN
2 3 4
1
5
CN407
WHITE
W202
PINK
4-WAY VALVE
4WV
CONSTRUCTION CHECK SWITCH
BLACK
BLACK
12
3
CN30
WHITE
PIPE
THERMISTOR
CN22
RED
DISCHARGE
BLACK
2
OUTDOOR
THERMISTOR
BLUE
CN23
BLUE
CONTROLLER PCB ASSY
( MAIN PCB )
LED1
D150
F2 FUSE
T 3.15A 250V
W11 W10
WHITE
BLACK
TM101
TM102
POWER SUPPLY PCB ASSY
W3 W6
GREEN
W7
BLACK
WHITE
TERMINAL
THERMISTOR
YELLOW
CN1
BLACK
BROWN
1 2
CN1
WHITE
FUSE
250V
SW150
1
CN21
LED2
D151
431
RED
3
25A
2
SW1
CURRENT
SWITCHING
BROWN
LED3
D152
CN34
YELLOW
BLACK
W8 W9
W4
BLACK
L
3 2 1
23
1
EMI
FILTER
WHITE
2T
W5
WHITE
N
F4 FUSE
T 5A 250V
AC I N
CN37
CN36
WHITE
CN27
CN39
WHITE
BLACK
CN40
WHITE
CN50
WHITE
CN51
WHITE
RED
RED
RED
1
RED
2
WHITE
1
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
PRESSURE SWITCH 1
PRESSURE SWITCH 2
E V
1
1
BLACK
2
2
3
3
BLACK
4
4
5
5
BLACK
6
6
7
7
BLACK
8
8
WHITE
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
WHITE
RED
1
1
BROWN
2
2
BLUE
3
3
ORANGE
4
4
YELLOW
5
5
WHITE
6
6
GREEN
EXPANSION VALVE A
2-WAY VALVE
THERMISTOR A
3-WAY VALVE
THERMISTOR A
2-WAY VALVE
THERMISTOR B
3-WAY VALVE
THERMISTOR B
2-WAY VALVE
THERMISTOR C
3-WAY VALVE
THERMISTOR C
EXPANSION
E V
VALVE B
EXPANSION
E V
VALVE C
2007.04.18
7
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