Fujitsu ABU18RULX User manual

CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
OUTLINE AND DIMENSIONS . . . . . . . . . . . . . . . . . . . . . 2
REFRIGERANT SYSTEM DIAGRAM . . . . . . . . . . . . . . 4
ERROR DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PCB CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . .
13
DISASSEMBLY ILLUSTRATION (Indoor Unit) . . . . . 14
DISASSEMBLY ILLUSTRATION (Outdoor Unit) . . . . 21
PARTS LIST (Indoor Unit) . . . . . . . . . . . . . . . . . . . . . . . . 26
PARTS LIST (Outdoor Unit) . . . . . . . . . . . . . . . . . . . . . . 28
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
SPLIT TYPE
ROOM AIR CONDITIONER
FLOOR CONSOLE /
UNDER CEILING
DUAL type
Models
Indoor unit Outdoor unit
ABU18RULX
ABU24RULX
AOU18RLX
AOU24RLX

SPECIFICATIONS
TYPE
INDOOR UNIT
OUTDOOR UNIT
COOLING CAPACITY
17,800 / 17,800 BTU/h
POWER SOURCE
FREQUENCY
RUNNING CURRENT (Heat)
INPUT WATTS (Heat)
E.E.R. (Heat)
MOISTURE REMOVAL
AIR CIRCULATION-Hi (m /hr)
(/hr)
ELECTRICAL DATA
COMPRESSOR
DIMENSIONS
TYPE
Hermetic type, 4 poles, Inverter, Twin Rotary
DISCRIMINATION
REFRIGERANT R410A
POWER SOURCE
DISCRIMINATION
INDOOR UNIT
( Cool / Heat )
HIGH-SPEED
MED-SPEED
LOW-SPEED
DISCRIMINATION
OUTDOOR UNIT
( Cool / Heat ) HIGH- SPEED
INDOOR UNIT H x W x D
7-7/8" x 39-1/8" x 25-7/8" inch
199 x 990 x 655 mm
OUTDOOR UNIT
FAN MOTOR
WEIGHT
INDOOR UNIT Gross / Net
H x W x D
Gross / Net
OUTDOOR UNIT
2.5 L/hr
Cool and Heat
ABU18RULX
AOU18RLX
9.8 A / 10.9 A
2.25 kW / 2.25 kW
2.80 / 2.80 kW/kW
780 m3/hr
TNB220FPBM9
4 lb 3 oz (1,900 g)
1,060 / 1,060 r.p.m.
890 / 890 r.p.m.
770 / 770 r.p.m.
MFE-45ROM
780 / 780 r.p.m.
MFE-45ROM
850 / 900 r.p.m.
32-3/4" x 35-1/2" x 13" inch
900 x 900 x 350 mm
ABU24RULX
AOU24RLX
22,200 / 22,200 BTU/h
230 V / 208 V
10.2 A / 11.3 A
2.33 kW / 2.33 kW
3.05 / 3.05 kW/kW
880 m3/hr
230 V
MFA-24PPTMFA-24PPT
1,180 / 1,100 r.p.m.
1,000 / 1,000 r.p.m.
900 / 900 r.p.m.
37 kg / 28 kg
70 kg / 64 kg
3.5 L/hr
HEATING CAPACITY
21,500 / 21,500 BTU/h 24,200 / 24,200 BTU/h
RUNNING CURRENT (Cool)
7.1 A / 7.9 A 9.8 A / 10.9 A
INPUT WATTS (Cool)
1.63 kW / 1.63 kW 2.25 kW / 2.25 kW
E.E.R. (Cool)
3.19 / 3.19 kW/kW 2.89 / 2.89 kW/kW
12005.12.28
49 ft. (15 m)
66 ft. (20 m)
98 ft. (30 m)
ADDITIONAL REFRIGERANT
4 lb 3oz (1,900 g)
4 lb 7oz (2,000 g)
4 lb 14oz (2,200 g)
0.215oz / ft. (20 g / m)
131 ft. (40 m)
5 lb 5oz (2,400 g)
164 ft. (50 m)
5 lb 12oz (2,600 g)
4 lb 3oz (1,900 g)
4 lb 10oz (2,100 g)
5 lb 8oz (2,500 g)
6 lb 6oz (2,900 g)
7 lb 5oz (3,300 g)
0.424 oz / ft. (40 g / m)
FULL CHARGE AMOUNT
REFRIGERANT CHARGE (R410A)
Pipe Length
1 60 Hz

OUTLINE AND DIMENSIONS
INDOOR UNIT
Unit : inch (mm)
39-1/8" (990)
900
19-3/4" (500)
25-7/8" (655)
530
200175
7-7/8" (199)
(rear view)
22005.12.21
Models :
ABU18RULX, ABU24RULX

Unit : inch (mm)
OUTDOOR UNIT
Models:
AOU18RLX, AOU24RLX
3"(77)
35-1/2" (900)
32-3/4" (830)
17-3/8" (440)
7/8" (21)
3/8" (9)
15-3/4" (400)
13" (330)
1-1/4"
(31)
1/2"
(12)
7-3/4" (196)
5-3/4" (147)
6-3/4" (170)
3-7/8" (99)
14-5/8" (370)
25-5/8" (650)
Air Flow
32005.12.28

Evaporator
REFRIGERANT SYSTEM DIAGRAM
OUTDOOR UNIT
Pressure
Check Valve
Condenser
4-way
Valve
High Pressure
Switch
Accumulator
Muffler
Compressor
Expansion
Valve
Refrigerant Pipe
6.35mm (1/4")
Charging Valve
Charging
Valve
Refrigerant Pipe
12.7mm (1/2")
INDOOR UNIT
Strainer
Strainer
: COOL
: HEAT
Models :
ABU18RCLX / AOU18RLX
Evaporator
OUTDOOR UNIT
Pressure
Check Valve
Condenser
4-way
Valve
High Pressure
Switch
Accumulator
Muffler
Compressor
Expansion
Valve Refrigerant Pipe
9.52mm (3/8")
Charging Valve
Charging
Valve
Refrigerant Pipe
15.88mm (5/8")
INDOOR UNIT
Strainer
Strainer
Models :
ABU24RULX / AOU24RLX
42005.12.28

CIRCUIT DIAGRAM
Models :
ABU18RULX, ABU24RULX
TERMINAL
STEP MOTOR
( LEFT / RIGHT )
STEP MOTOR
( UP / DOWN )
FAN MOTOR
CAPACITOR
FAN MOTOR
ROOM TEMPERATURE THERMISTOR
PIPE TEMPERATURE THERMISTOR
F M M
M
123 1 23
Use T3.15A-250V Fuse on F101
G
L
N
PURPLE
BLUE
PINK
RED
WHITE
BLACK
BLACK
WHITE
RED
GREEN
GRAY
PURPLE
BLUE
WHITE
YELLOW
ORANGE
RED
BROWN WHITE
WHITE
BROWN
RED
ORANGE
YELLOW
WHITE
BLACK BLACK GRAY GRAY
BROWN
RED
ORANGE
YELLOW
WHITE
BLACK
BLACK
WHITE
WHITE RED
CN7 CN8
CN1 CN17
CN13CN5
CN11 CN10 CN4
CN201
GREEN / YELLOW
1
7
6
5
4
3
2
8
1
6
5
4
3
2
1
7
6
5
4
3
2
8
1
7
6
5
4
3
2
8
1
6
5
4
3
21
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
1
2
12
1
2
2
1 2 3 1 2 3
INDICATOR PCB ASSY
CONTROLLER PCB ASSY
POWER SUPPLY PCB
52005.12.28

Model :
AOU18RLX, AOU24RLX
ORANGE
YELLOW
WHITE
BLUE
BROWN
RED
BLUE
YELLOW
WHITE
BLACK
RED
BLACK
BLACK
RED
RED
BLACK
BROWN
BLUE
BROWN
BLACK
RED
BROWN
BLACK
BLACK
WHITE
BLACK
BLACK
WHITE WHITE
GREEN
BLACK
WHITE
BLACK
RED
YELLOW
BLUE
YELLOW
ORANGE
RED
BROWN
BLACK
BLACK
WHITE
BROWN
BLACK
BLACK
WHITE
WHITE
RED RED
RED
CN1
CN1
CN34
W9 W8
W200
W11
W10
W17
W16
CN27
CN802
W12
W13
CN407
CN30
CN37
W303
W304
W305
CN21 CN22 CN23 CN26 CN25
1
6
5
4
3
2
1432
1
6
5
4
3
2
1
5
4
3
2
1
3
2
1
2
132
1 2 1 2 1 2 1 2 1 2
1
6
5
4
3
2
132
TM102
TM101 W3 W6 W7 W4 W5
G G
2 (N)
1 3 LN
EARTH EARTH
EXPANSION VALVE COIL
E V
F M FAN MOTOR
SOLENOID COIL
4WV
HIGH PRESSURE SWITCH
FUSE
F4 T 5A-250V
FUSE
F2 T 3.15A-250V
EMI FILTER
2T
L1
L2
P
N
+-
TERMINAL
CHOKE COIL
COMPRESSOR
CONNECTOR
EMI FILTER
1T
U
V
W
W
U
V
DISCHARG TEMPERATURE
THERMISTOR
PIPE TEMPERATURE
THERMISTOR
OUTDOOR TEMPERATURE
THERMISTOR
COMPRESSOR TEMPERATURE
THERMISTOR
HEAT SINK TEMPERATURE
THERMISTOR
POWER SUPPLY PCB ASSY
CONTROLLER PCB ASSY
ACTIVE
FILTER
MODULE
62005.12.28

Models : ABU18RULX
ABU24RULX
CONTROLLER PCB ASSY
ABU18RULX : K01AL-050PHSE-C1
ABU24RULX : K01AL-050SHSE-C1
INDOOR PCB CIRCUIT DIAGRAM
72005.12.28

Models : AOU18RLX
AOU24RLX
POWER SUPPLY PCB ASSY
K04BA-0500HUE-P0
CONTROLLER PCB ASSY
AOU18RLX : K04AW-0503HUE-C1
AOU24RLX : K04AW-0502HUE-C1
INVERTER ASSEMBLY
AOU18RLX : EZ-005GHUE
AOU24RLX : EZ-005FHUE
OUTDOOR PCB CIRCUIT DIAGRAM
82005.12.28

600/450V x 4
Models : AOU18RLX, AOU24RLX
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
AOU18RLX : K04AW-0503HUE-C1
AOU24RLX : K04AW-0502HUE-C1
92005.12.28

5V
TM101
TM102
C112
0.015
<YE>
C113
0.015
<YE>
C111
3.3
<LE>
L4
RCH4730-021PF07
C107
3.3
<LE>
TM100
L2
N200500K1D7C
CT1
CT-1B
5V D60
DAN217U
C64
0.1
<F>
R68 22K
<1/10W>
C65
0.1
<F>
VR1
B2K
+
R61 3.74K
<1/10W>
(1%)
C60
220/16V
<PJ>
R60 1.0K
<1/10W>
(1%)
SA100
RA-302M
C106
3.3
<LE>
C104
0.033
<YE>
C105
0.033
<YE>
C101
3.3
<LE>
VA101
470V
<TNR>
VA102
470V
<TNR>
B
B
B
B
B
B
B
BLACK
WHITE
TO INDOOR UNIT
POWER SOURCE
230V
60Hz
EARTH
AC VOLT OUT
W2
W5
W6
BLACK
WHITE
W7
GREEN
W3
W8
BLACK
WHITE
W9
W1
W4
L1
RCH4730-021PF07
CN1
B3B-XASK-1-A
WHITE
CT OUT
1
2
3
or
or
AOU18RLX, AOU24RLX : W4 and W5
AOU36RLX, AOU42RLX : W1 and W2
*
*
*
POWER SUPPLY PCB ASSEMBLY
K04BA-0500HUE-P0
2005.12.28 10
Models : AOU18RLX, AOU24RLX

ERROR CONTENTS
(Indoor unit)
Indoor EEPROM abnormal
Outdoor EEPROM abnormal
Indoor room temperature sensor open
Indoor room temperature sensor shortcircuited
Indoor heat exchanger temperature sensor open
Indoor heat exchanger temperature sensor shortcircuited
Float switch operated
Indoor signal abnormal
Outdoor signal abnormal
Indoor fan abnormal
Outdoor power source connection abnormal
Outdoor heat exchanger temperature sensor open
Outdoor heat exchanger temperature sensor shortcircuited
Outdoor temperature sensor open
Outdoor temperature sensor shortcircuited
Outdoor discharge pipe temperature sensor or compressor
temperature sensor open
Outdoor discharge pipe temperature sensor or compressor
temperature sensor shortcircuited
Outdoor high pressure abnormal
Outdoor discharge pipe temperature or compressor
temperature sensor abnormal
OPERATION
lamp (RED)
(2 times)
(2 times)
(3 times)
(3 times)
(4 times)
(5 times)
(5 times)
(6 times)
TIMER lamp
(GREEN)
(2 times)
(3 times)
(3 times)
(4 times)
(4 times)
(5 times)
(5 times)
(6 times)
(7 times)
SWING lamp
(ORANGE)
: 0.1s ON/0.1s OFF (flash) : OFF
: 0.5s ON/0.5s OFF (flash)
Error contents
SWING SWING TIMER
MANUAL
AUTO
OERATION
VERTICAL SWING lamp (Orange)
TIMER lamp (Green)
OPERATION lamp (Red)
Operation can be checked by lighting and flashing of the display section OPERATION,
TIMER, and VERTICAL SWING lamps.
Perform judgment in accordance with the following.
TEST RUNNING
When the air conditioner is run by pressing the remote control unit test run button, the
OPERATION, TIMER, and VERTICAL SWING lamps flash slowly at the same time.
ERROR
The OPERATION, TIMER, and VERTICAL SWING lamps operate as follows (Table 1)
according to the error contents.
112005.12.28

SPECIAL INSTALLATION
SETTING
PUMP DOWN (Refrigerant collecting operation)
ERROR CONTENTS
(outdoor unit)
1. Make a TEST RUN in accordance with the in-
stallation instruction sheet for the indoor unit.
2. OUTDOOR UNIT LEDS
Error contents
Communication error
(Indoor unit - Outdoor unit)
Discharg pipe temperature sensor
Outdoor heat exchanger temperature sensor
Outdoor temperature sensor
Compressor temperature sensor
Heat sink temperature sensor
Pressure switch abnormal
IPM error
Compressor rotor position cannot detect
Compressor cannot operate
Outdoor fan abnormal (upper fan)
Outdoor fan abnormal (lower fan)
No error
LED
1 flash
2 flash
3 flash
4 flash
7 flash
8 flash
9 flash
12 flash
13 flash
14 flash
15 flash
16 flash
lighting
1. When the product is stopped:
When a malfunction occurs in the outdoor unit, the LED on
the circuit board lights to indicate the error. Refer to the fol-
lowing table for the description of each error according to the
LED.
Perform the following procedures to collect the refrigerant
when moving the indoor unit or the outdoor unit.
*When the pump down operation is repeated, temporarily disconnect
the power supply after opening the closed valves (both liquid and gas).
Reconnect the power supply after 2 - 3 minutes and perform the pump
down operation.
*When the start of the operation after pump down operation has been
completed, temporarily disconnect the power supply after opening the
closed valves (both liquid and gas).
Reconnect the power supply after 2-3 minutes and be sure to perform
a test operation for cooling.
1
2
3
4
2. When the product is operating:
1
2
3
4
Press the PUMP DOWN switch on the outdoor unit.
(The LED on the outdoor unit circuit board lights.)
Press the PUMP DOWN switch on the outdoor unit.
The LED on the outdoor unit circuit board lights, and
operation stops. At this point, recovery has not been
completed, so do not close the two- and three-way
valves.
The pump down operation (cooling operation) be-
gins right away. After oparation starts, close the
three-way valve (liquid).
The pump down operation (cooling operation) be-
gins after three minutes. Close the three-way valve
(liquid) after operation starts.
After 2 - 3 minutes, operation stops. Close the three-
way valve (gas) within one minute after operations
stops.
After 2 - 3 minutes, operation stops. Close the three-
way valve (gas) within one minute after operations
stops.
The LED will go out three minutes after it stops.Dis-
connect the power supply after confirming that the
LED has gone out.
The LED will go out three minutes after it stops. Dis-
connect the power supply after confirming that the
LED has gone out.
3-way valve
(Liquid)
3-way valve
(Gas)
122005.12.28

DISASSEMBLY ASSEMBLY
Models : ABU18RULX, ABU24RULX
132005.12.28
653-2
365-1
365-2
365-2
365-1
870-1
653-2
870-1
509
923
923
173
580
508
174
422
240 743

142005.12.28
870-2
196-1
574-2
588-2
184-1
588-1
574-1
470
764
577
127
124
235
124
552
108
68
578
418
160
439
138
68
187
553

152005.12.28

416
417
385
868
771
488
472
473
443
8-1
162005.12.28

172005.12.28
810
800
652-1
790
735
146
772
OPTIONAL PARTS

182005.12.28

684
558
555
554
520
521
505
505
505
321
320
361
69
69
69
69
502
505
506
500
407
408 503
876-2
876-1
361-2
361-2
361-2
361-3
361-3
361-3
361-2
192005.12.28