Fujitsu AUU18RML, AUU9RML, AUU12RML, AOU36RML1 Service Manual
INVERTER MULTI
AIR CONDITIONER
CONCEALED CEILING TYPE
Indoor unit Outdoor unit
AUU9RML
AUU12RML
AUU18RML
CONTENTS
AOU36RML1
SPECIFICATIONS
OUTLINE AND DIMENSIONS
REFRIGERANT SYSTEM DIAGRAM
CIRCUIT DIAGRAM
INDOOR PCB CIRCUIT DIAGRAM
OUTDOOR PCB CIRCUIT DIAGRAM
ERROR DETECTION
PARTS (INDOOR UNIT)
PARTS (OUTDOOR UNIT)
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1
4
6
7
8
12
15
18
23
SPECIFICATIONS
INDOOR UNIT
ELECTRICAL DATA
TYPE
Inverter multi cooling & heating
MODEL NAME
COOLING CAPACITY
HEATING CAPACITY
MOISTURE REMOVAL
AIR CIRCULATION
(HIGH)
FAN MOTOR
Discrimination
High speed
cool / heat
Med speed
Low speed
Quiet
NOISE LEVEL
High speed
cool / heat
Med speed
Low speed
Quiet
Cooling
Heating
AUU9RML AUU12RML
2.7 kW
3.3 kW
0.9 L/hr
540 m3/hr
540 m3/hr
590 / 590 r.p.m.
540 / 540 r.p.m.
490 / 490 r.p.m.
440 / 440 r.p.m.
33 dB / 34 dB
31 dB / 32 dB
29 dB / 29 dB
26 dB / 27 dB
3.5 kW
3.8 kW
1.2 L/hr
610 m3/hr
600 m3/hr
MFF-24VVL
660 / 650 r.p.m.
580 / 580 r.p.m.
520 / 520 r.p.m.
460 / 460 r.p.m.
37 dB / 37 dB
33 dB / 33 dB
31 dB / 31 dB
27 dB / 28 dB
AUU18RML
5.2 kW
6.0 kW
1.6 L/hr
750 m3/hr
800 m3/hr
790 / 840 r.p.m.
660 / 750 r.p.m.
570 / 650 r.p.m.
460 / 500 r.p.m.
42 dB / 44 dB
37 dB / 41 dB
33 dB / 37 dB
27 dB / 30 dB
DIMENSIONS
INDOOR UNIT 9-10/16 x 22-7/16 x 22-7/16 inch (245 x 570 x 570 mm)
DECORATION PANEL
H x W x D
H x W x D
WEIGHT
INDOOR UNIT
DECORATION PANEL
Net / Gross
Net / Gross
1-15/16 x 27-9/16 x 27-9/16 inch (49 x 700 x 700 mm)
33 lb / 39 lb (15 kg / 18 kg)
5.7 lb / 10 lb (2.6 kg / 4.5 kg)
12009.02.19
OUTDOOR UNIT
ELECTRICAL DATA
TYPE
4 room multi inverter
MODEL NAME
POWER SUPPLY
FREQUENCY
AIR CIRCULATION High
NOISE LEVEL
FAN MOTOR
DISCRIMINATION
HIGH SPEED
MEASUREMENT
DIMENSIONS
WEIGHT
Cooling
Heating
Cooling
Heating
Cooling
Heating
H x W x D
Net / Gross
AOU36RML1
230 V / 208 V
60 Hz
2119 cfm (3,600 m3/h)
2237 cfm (3,800 m3/h)
51 dB
53 dB
MFE-45ROM
850 r.p.m.
900 r.p.m.
32-7/8 x 35-7/16 x 13 inch
(835 x 900 x 330 mm)
149 lb / 167 lb (68 kg / 76 kg)
COMPRESSOR AND REFRIGERANT
COMPRESSOR TYPE
DISCRIMINATION
WEIGHT
STANDARD REFRIGERANT
REFRIGERANT TYPE
Total Pipe Length
ADDITIONAL CHARGE
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)
164 ft (50 m)
197 ft (60 m)
230 ft (70 m)
Hermetic type, Inverter, 4 poles,
3-phase, DC motor, Twin Rotary
7 lb 7/8 oz (3,200 g)
1 lb 1-5/8 oz (500 g)
TNB220FPBM9
14.3 kg
R410A
(Chargeless)
8-13/16 oz (250 g)
9/32 oz/ft (25 g/m)
164 ft (50 m)
82 ft (25 m)
239 ft (70 m)
49 ft (15 m)
49 ft (15 m)
16 ft (5 m)
22009.02.19
COMBINATION
ELECTRICAL DATA (230 V)
COMBINATION
AUU12 x 2 + AUU9AUU12 + AUU9 x 2AUU9RML x 3
COOLING CAPACITY
HEATING CAPACITY
CURRENT (Cooling)
CURRENT (Heating)
EER
COP
ELECTRICAL DATA (230 V)
COMBINATION
COOLING CAPACITY
HEATING CAPACITY
7.92 kW
27,000 BTU/h
9.66 kW
33,000 BTU/h
2.80 kWINPUT POWER (Cooling)
3.23 kWINPUT POWER (Heating)
12.20 A
14.10 A
9.60
2.98
9.90 kW
33,800 BTU/h
10.74 kW
36,600 BTU/h
8.76 kW
29,800 BTU/h
10.38 kW
35,400 BTU/h
3.35 kW
3.50 kW
14.60 A
15.30 A
8.85
2.96
10.02 kW
34,200 BTU/h
10.86 kW
37,000 BTU/h
9.42 kW
32,200 BTU/h
10.74 kW
36,600 BTU/h
3.83 kW
3.75 kW
16.70 A
16.40 A
8.40
2.86
AUU9RML x 4AUU18 + AUU9 x 2AUU12RML x 3
10.8 kW
34,400 BTU/h
10.68 kW
36,400 BTU/h
INPUT POWER (Cooling)
INPUT POWER (Heating)
CURRENT (Cooling)
CURRENT (Heating)
EER
COP
4.08 kW
3.65 kW
17.8 A
16.0 A
8.25
2.94
4.08 kW
3.48 kW
17.8 A
15.2 A
8.35
3.12
32009.02.19
4.07 kW
3.21 kW
17.8 A
14.0 A
8.45
3.32
OUTLINE AND
DIMENSIONS
Unit : inch (mm)
DECORATION PANEL
27-9/16 (700)
27-9/16 (700)
1-15/16 (49)
1-3/16 (30)
INDOOR UNIT
TOP VIEW
2-15/16 (75)
5-5/16
(135)
4
(102)
20-7/8 (530)
(
Hanging bolt position
)
9-13/16
(250)
Drain pipe I.D 3/4 (19.4) / O.D. 1 (25.4
1-9/16
(40)
3-7/8
(99)
)
21-1/4 (540)
22-7/16 (570)
Hanging bolt position
(
)
SIDE VIEW
2009.02.19 4
5-3/4
(146)
9-5/8 (245)
Liquid pipe Gas pipe
4-1/4
(108)
1-3/16 (30)
OUTDOOR UNIT
Unit : inch (mm)
32-7/8 (830)
13/16 (21)
35-7/16 (900)
(9)
11/32
1-9/16
(40)
1-7/32
(31)
13 (330)
15-3/4 (400)
15/32
(12)
14-9/16 (370)
25-19/32 (650)
Air Flow
52009.01.30
REFRIGERANT
SYSTEM DIAGRAM
OUTDOOR UNIT
DISCHARGE
THERMISTOR
COMPRESSOR
OIL BACK
CAPILLARY
PRESSURE
SWITCH(A)
PRESSURE SWITCH(B)
ACCUMULATOR
EXPANSION
VALVE
HEAT EXCHANGER
OIL SEPARATOR
HEAT COOL
HEAT EXCHANGER
4-WAY VALVE
EXPANSION
VALVE
EXPANSION
VALVE
CAPILLARY
TUBE
RECEIVER TANK
STRAINER
DISTRIBUTOR
EXPANSION
VALVE
THERMISTOR
PIPE (A-3WV)
THERMISTOR
PIPE (A-2WV)
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
THERMISTOR
PIPE (B-3WV)
THERMISTOR
PIPE (B-2WV)
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
THERMISTOR
PIPE (C-3WV)
THERMISTOR
PIPE (C-2WV)
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
THERMISTOR
PIPE (D-3WV)
THERMISTOR
PIPE (D-2WV)
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT D
62009.01.30
PRESSURE SWITCH 1
RED
RED
2
1
RED
CN37
SW150
CONSTRUCTION
CHECK SW
CN30
4WV
WHITE
321
4-WAY VALVE
DC COMPRESSOR
EXPANSION
VALVE A
PRESSURE SWITCH 2
E V
BROWN
BLUE
RED
ORANGE
3
2
1
CN27
321
WHITE
YELLOW
456
RED
( DISCHARGE )
THERMISTOR
( PIPE )
THERMISTOR
( OUTDOOR )
THERMISTOR
( COMP. )
THERMISTOR
( HEAT SINK )
THERMISTOR
WHITE
WHITE
2
1
CN36
WHITE
SW1
CHANGE
CURRENT
F M
DC FAN MOTOR
V
W
U
BROWN
BLACK
BLUE
BROWN
BLACK
BLUE
YELLOW
WHITE
BLACK
RED
BLACK
WHITE
RED
VALVE TH. A, B
3WV-A
2WV-A
YELLOW
RED
3
2
1
3
2
1
BLACK
WHITE
WHITE
WHITE
4
3
1
F4 FUSE
T 5A 250V
12
CN21
YELLOW
12
RED
CN22
BLUE
CN23
CN26
GREEN
12 12 12
CN25
BLACK
WHITE
CN802
123456
W
W303
V
W304
U
W305
4
5
456
WHITE
5
6
CN39
WHITE
I P M
2WV-B
BLUE
WHITE
W17 W16 W21 W22
6
7
3WV-B
BLACK
7
8
8
7
WHITE
WHITE
8
9
INVERTER PCB ASSY
ORANGE
RED
DIODE
BRIDGE
VALVE TH. C, D
WHITE
ORANGE
POSISTOR
BLACK
2WV-C
GRAY
1
1
BLACK
RED
1
YELLOW
632
+
3WV-C
BROWN
3
2
3
2
RED
4
2
RED
ORANGE
ACTPM
2WV-D
ORANGE
456
456
RED
RED
RED
RED
7
6
5
CN40
WHITE
D153
LED4
D152
LED3
D151
LED2
D150
LED1
5
4
23
1
BROWN
1
WHITE
TERMINAL
BLACK
3WV-D
GREEN
7
7
RED
8
CN34
CN407
CN12
P
L1
8
8
RED
9
AC I N
YELLOW
WHITE
YELLOW
BROWN
BLACK
EXPANSION
VALVE B
BROWN
BLUE
RED
2
1
2
1
BLACK
WHITE
WHITE
245
1
321
CN1
F2 FUSE
T 3.15A 250V
CN13
BLUE
W200 W201 W202 W203 W11 W10
EMI
FILTER
N1
L2
CHOKE
E V
ORANGE
YELLOW
3
456
3
456
WHITE
WHITE
CN50
WHITE
2T
134
2T
COIL
6
RED
WHITE
WHITE
7
EMI FILTER
WHITE
BLACK
BROWN
BLACK
BLACK
WHITE
EXPANSION
RED
WHITE
BLACK
W9
W8
3
2
CN1
1
TM101
TM102
RED
VALVE C
BROWN
2
1
2
1
GREEN
1
WHITE
YELLOW
BLUE
GREEN
3
POWER SUPPLY
E V
WHITE
ORANGE
YELLOW
3
456
3
6
5
4
GREEN
GREEN
GREEN
6
5
4
7
CN51
WHITE
W5
W6 W4
W7
PCB ASSY
W3
BROWN
PINK
EXPANSION
RED
1
1
GREEN
BLACK
1
WHITE
BLACK
BLACK
WHITE
GREEN
VALVE D
BROWN
BLUE
3
2
3
2
BLUE
BLUE
256
CN52
E V
ORANGE
YELLOW
456
456
BLUE
BLUE
7
WHITE
WHITE
BLUE
8
L 1 L 2
BLUE
G
FUSE
EMI FILTER EMI FILTER
EARTH
TERMINAL
250V 10A
123
BLACK
123123123
WHITE
BLACK
WHITE
UNIT D
UNIT B
UNIT A UNIT C
TERMINAL
THERMISTOR
( PIPE TEMP. )
BLACK
GRAY
GRAY
CIRCUIT DIAGRAM
INDOOR UNIT OUTDOOR UNIT
INDICATOR
2
34567
1
3
2
4
1
THERMISTOR
( ROOM TEMP. )
3
2
4
1
YELLOW
BROWN
RED
ORANGE
2
34567
1
3
2
4
1
12
12
1
1
BLACK
CN8
CN5
CN9
2
2
3
3
BLACK
CN13
RED
BLACK
12
12
FLOAT SWITCH
PCB ASSY
6
7
5
6
7
5
WHITE
BLUE
PURPLE
6
7
5
CONTROLLER
CN12
2
3
4
5
1
2
345
1
PINK
BLUE
YELLOW
ORANGE
2
345
1
2
3
4
5
1
M
STEP MOTOR
TO REMOTE CONTROL
2
1
3
WHITE
BLACK
RED
2
3
1
2
2
3
1
1
CN6
CN14
PCB ASSY
CN11
2
3
4
5
RED
1
1
1
1
3
2
YELLOW
ORANGE
2
345
2
3
PINK
1
4
5
BLUE
4
5
M
STEP MOTOR
TERMINAL
2
345
1
CN3
CN2
2
3
4
5
6
CN10
1
CN7
2
TERMINAL
1 2 3
WHITE
BLACK
2
1
312
312
CN1
8
8
7
7
CN4
3456
3456
12
12
RED
GRAY
312
312
W105
8
7
6
5
34
12
8
7
3456
12
CN101
CN104
1
1
BROWN
YELLOW
1
1
2
2
2
2
WHITE
W102
POWER SUPPLY
3
3
BLACK
3
34567
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
GRAY
12
W101
CN106
312
CN102
12
CN103
PCB ASSY
CN105
6
4
5
E101 E102
6
4
5
RED
6
7
4
5
12
YELLOW
YELLOW
M
DRAIN PUMP
MOTOR
GREEN
GREEN
8
8
F M
FAN MOTOR
2009.02.19 7
3
THERMISTOR ( ROOM TEMP. )
BLACK
BLACK
CN8-1
CN8-2
CN7-1
CN7
CN8
WHITE
B02B-XASK-1-A
CN7-2
YELLOW
B02B-XAYK-1-A
THERMISTOR ( PIPE - M I D. TEMP. )
INDICATOR PCB ASSEMBLY
GRAY
GRAY
CN5-1
CN5-2
CN5
BLACK
B02B-XAKK-1-A
CONTROLLER PCB ASSEMBLY
AUU9RML : K06AK-0900HSE-C1
AUU12RML : K06AK-0901HSE-C1
K06AG-0700HSE-D0
CN201-1
CN201-2
CN201-3
CN201-4
CN201-5
CN201-6
CN201-7
CN201
S07B-PASK-2
WHITE
ORANGE
YELLOW
GREEN
BROWN
PURPLE
RED
BLUE
234
5
6
7
1
UL1430 AWG28
x 5
UL1430 AWG22 RED
UL1430 AWG28
CN13-7
UL1430 AWG22 WHITE
x 5
CN14-1
CN14-2
CN14
234
5
6
7
1
ORANGE
YELLOW
BROWN
GREEN
RED
PURPLE
BLUE
CN13-1
CN13-2
CN13-3
CN13-4
CN13-5
CN13-6
WHITE
CN13
B07B-PASK-1
CN2
B5P-SHF-1AA
WHITE
AUU18RML : K06AK-0902HSE-C1
CN2-1
CN2-2
CN2-3
CN2-4
CN2-5
UL1430 AWG22 BLACK
CN14-3
BLACK
B03B-XAKK-1-A
CN3
CN3-1
CN3-2
CN3-3
B06B-PASK-1
WHITE
CN3-4
CN3-5
CN6-1
CN6
CN3-6
12
TERMINAL BOARD
M
CN6-2
GREEN
B02B-PAMK-1
FRESH AIR ( OPTION )
CN10-1
CN10
CN4-1
CN4-2
CN10-2
B02B-PAOK-1
CN4
CN4-3
ORANGE
B08B-PASK-1
CN4-4
CN4-5
WHITE
CN4-6
STEP MOTOR
CN4-7
CN4-8
( OPTION )
REMOTE CONTROL
LOUVER
M
ORANGE
ORANGE
YELLOW
RED
RED
BLUE
PINK
ORANGE
ORANGE
YELLOW
RED
RED
BLUE
PINK
UL1430 AWG26 x 5
CN11-1
CN11-2
CN11-3
CN11-4
CN11-5
CN12-1
CN12-2
RED
CN11
CN12
B05B-XASK-1-A
LOUVER
M
YELLOW
BLUE
PINK
YELLOW
BLUE
PINK
UL1430 AWG26 x 5
CN12-3
CN12-4
CN12-5
RED
B05B-XARK-1-A
CN1
B03B-PASK-1
WHITE
CN1-1
CN1-2
CN1-3
FLOAT SWITCH
BLACK
CN9-1
CN9
BLACK
CN9-2
CN9-3
RED
B03B-XARK-1-A
W105
W101 W102
E101
CONTROL UNIT
AUU9RML : EZ-0081YHSE
AUU12RML : EZ-00820HSE
INDOOR PCB CIRCUIT DIAGRAM
AUU18RML : EZ-00821HSE
UL1015 AWG20 RED
UL1015 AWG20 WHITE
UL1015 AWG20 BLACK
1
3
2(N)
TERMINAL BOARD
UL1015
AWG16
GREEN
TO OUTDOOR UNIT
UL1015
AWG16
E102
GREEN
K06AL-0807HSE-P0
CN105
B5P6-VH-B
POWER SUPPLY PCB ASSEMBLY
EMI FILTER
WHITE
CN105-6
CN105-5
CN105-4
CN105-3
CN105-2
CN105-1
WHITE
BLACK
RED
YELLOW
ZCAT2132-1130
BROWN
1 T
234
7
8
5
6
1
UL1015 AWG22 x 5
F M
POWER DRIVE
GRAY
GRAY
GRAY
GRAY
CN104-1
CN104-2
CN104-3
CN104-4
CN104
CN106
B2P3-VH-B-E
BLUE
CN106-1
CN106-2
BLACK
BLACK
M
GRAY
GRAY
CN104-5
WHITE
B08B-PASK-1
GRAY
GRAY
CN104-6
CN104-7
UL1430 AWG26 x 8
CN104-8
DC SUPPLY
CN103
CN103-1
GRAY
GRAY
CN101-1
CN101
B2B-XH-AM
WHITE
CN103-2
E I B OUT
GRAY
CN101-2
CN101-3
WHITE
B03B-PASK-1
UL1430 AWG26 x 3
EMI FILTER
ZCAT1518-0730
CN102
CN102-1
2 T
B3B-XH-AM
WHITE
CN102-2
CN102-3
E I B I N
DC FAN MOTOR
DRAIN PUMP MOTOR
2009.01.27 8
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