Fujitsu AUU18RCLX User manual

SPLIT TYPE
AIR CONDITIONER
(60Hz)
CASSETTE
type
Models
Indoor unit Outdoor unit
AUU18RCLX
AUU24RCLX
AUU36RCLX
AUU42RCLX
AOU18RLX
AOU24RLX
AOU36RLX
AOU42RLX
CONTENTS
SPECIFICATIONS ......................1
DIMENSIONS ..........................3
REFRIGERANT SYSTEM DIAGRAM .......7
CIRCUIT DIAGRAM .....................9
ERROR CONTENTS ....................
13INDOOR PCB CIRCUIT DIAGRAM .......
.....15OUTDOOR PCB CIRCUIT DIAGRAM
21
DISASSEMBLY ILLUSTRATION ..........23
PARTS LIST ..........................38
STANDARD ACCESSORIES .............42

INDOOR UNIT HxWxD
DIMENSIONS
INDOOR UNIT GROSS / NET
GROSS / NETOUTDOOR UNIT
WEIGHT
POWER SOURCE
COOLING
RUNNING CURRENT HEATING
INPUT WATTS COOLING
HEATING
E.E.R. COOLING
HEATING
STARTING CURRENT
MOISTURE REMOVAL
AIRCIRCULATION-Hi (m
3
/hr)
FAN MOTOR
TYPE
DISCRIMINATION
REFRIGERANT R410A
DISCRIMINATION
HIGH-SPEED
HIGH-SPEED
INDOOR UNIT
( Cool / Heat ) MED-SPEED
LOW-SPEED
DISCRIMINATION
OUTDOOR UNIT
TYPE
COOLING & HEATING
INDOOR UNIT
AUU18RCLX AUU24RCLX AUU36RCLX
OUTDOOR UNIT
AOU18RLX AOU24RLX AOU36RLX
COOLING CAPACITY
HEATING CAPACITY
44/34 kg 52/37 kg
70/64 kg
44/34 kg
70/64 kg 70/64 kg
7.0 / 7.8 A 9.2 / 10.1 A
8.9 / 9.9 A 10.4 / 11.4 A
1.61 / 1.61 kW 2.10 / 2.10 kW
2.05 / 2.05 kW 2.37 / 2.37 kW
3.23 / 3.23 kW/kW 3.10 / 3.10 kW/kW
3.07 / 3.07 kW/kW 3.00 / 3.00 kW/kW
18.3 / 19.5 A
16.2 / 17.9 A
4.22 / 4.08 kW
3.73 / 3.73 kW
2.37 / 2.40 kW/kW
3.00 / 2.95 kW/kW
10 A
4.0 L/hr
1,600 m3/hr
8.4 A
2.5 L/hr
9.5 A
3.0 L/hr
1,050 m3/hr950 m3/hr
230 / 208 V 60Hz
Total enclosed type, 4 poles, Inverter, Twin Rotary Hermetic type, 6 poles,
Inverter, Scroll
TNB220FPBM9 ANB33FCMMT
4lb 14oz
2,200 g
4lb 3oz
1,900 g
4lb 3oz
1,900 g
MFA-24RPT
450 / 400 r.p.m.
390 / 350 r.p.m.
330 / 310 r.p.m.
MFE-45ROM
Cool 780 /
Heat 780 r.p.m.
MFA-54PZM
620 / 620 r.p.m.
540 / 540 r.p.m.
460 / 460 r.p.m.
S-LOW-SPEED
- / 250 r.p.m.
MFA-24RPT
490 / 440 r.p.m.
430 / 380 r.p.m.
360 / 330 r.p.m.
MFE-45ROM
Cool 850 /
Heat 900 r.p.m.
- / 250 r.p.m. - / 300 r.p.m.
MFE-45ROM
Cool 850 /
Heat 900 r.p.m.
17,800 / 17,800 BTU/h 22,200 / 22,200 BTU/h 34,100 / 33,500 BTU/h
21,500 / 21,500 BTU/h 24,200 / 24,200 BTU/h 38,200 / 37,600 BTU/h
ELECTRICAL DATA
COMPRESSOR
( /hr)
HxWxDOUTDOOR UNIT
32-3/4" x 35-1/2" x 13" inch
( 830 x 900 x 330 mm )
AUU42RCLX
AOU42RLX
55/40 kg
112 / 105 kg
20.3 / 21.7 A
19.1 / 21.0 A
4.66 / 4.51 kW
4.39 / 4.37 kW
2.67 / 2.71 kW/kW
3.19 / 3.14 kW/kW
15 A
5.5 L/hr
1,700 m3/hr
7lb 8oz
3,400 g
MFA-54PZM
650 / 650 r.p.m.
610 / 610 r.p.m.
530 / 530 r.p.m.
- / 300 r.p.m.
MFE-45ROM
Up Fan 850 /
Down Fan 750 r.p.m.
42,700 / 41,700 BTU/h
47,800 / 46,800 BTU/h
9-3/4" x 32-3/4" x 32-3/4" inch
( 246 x 830 x 830 mm )
11-5/8" x 32-3/4" x 32-3/4" inch
( 296 x 830 x 830 mm )
50-7/8" x 35-1/2" x 13" inch
1,290 x 900 x 330 mm
2006.03.03 1
SPECIFICATIONS

REFRIGERANT CHARGE (R410A)
MAX PIPE LENGTH
50 m
MAX PIPE HEIGHT
30 m
50 m
30 m
Pipe Length 49 ft. (15 m)
4 lb 3 oz (1,900 g) 4 lb 14 oz (2,200 g)
66 ft. (20 m)
4 lb 7 oz (2,000 g) 5 lb 5 oz (2,400 g)
FULL CHARGE
AMOUNT
98 ft. (30 m)
4 lb 14 oz (2,200 g) 6 lb 3 oz (2,800 g)
131 ft. (40 m)
5 lb 5 oz (2,400 g) 7 lb 1 oz (3,200 g)
164 ft. (50 m)
5 lb 12 oz (2,600 g) 7 lb 15 oz (3,600 g)
197 ft. (60 m)
---- ---
230 ft. (70 m)
----
50 m
30 m
4 lb 3 oz (1,900 g)
4 lb 10 oz (2,100 g)
5 lb 8 oz (2,500 g)
6 lb 6 oz (2,900 g)
7 lb 5 oz (3,300 g)
----
---- ---
ADDITIONAL REFRIGERANT 0.212 oz / ft. (20g/m)
NOISE LEVEL
HIGH-SPEED
42.0 dB
INDOOR UNIT MED-SPEED
39.0 dB
LOW-SPEED
COOL
HEAT
36.0 dB
45.0 dB
43.0 dB
38.0 dB
48.0 dB
45.0 dB
41.0 dB
OUTDOOR UNIT
51.0 dB
53.0 dB
53.0 dB 54.0 dB
55.0 dB 55.0 dB
TYPE
COOLING & HEATING
INDOOR UNIT
AUU18RCLX AUU24RCLX AUU36RCLX
OUTDOOR UNIT
AOU18RLX AOU24RLX
70 m
30 m
7 lb 8 oz (3,400 g)
7 lb 8 oz (3,400 g)
8 lb 6 oz (3,800 g)
9 lb 4 oz (4,200 g)
10 lb 2 oz (4,600 g)
11 lb 0 oz (5,000 g)
11 lb 14 oz (5,400 g)
0.424 oz / ft. (40g/m)
50.0 dB
48.0 dB
44.0 dB
55.0 dB
56.0 dB
AUU42RCLX
AOU42RLXAOU36RLX
2005.12.21 2

Unit : inch (mm)
INDOOR UNIT
Models :
AUU18RCLX, AUU24RCLX
DIMENSIONS
2006.03.03 3
(200)
9-3/4"
(246)
9-1/4"
(235)
9-25/32"
(248.5)
11-3/4"
(298.5)
12" (305.5)
1-3/16"
(30)
37" (940)
37" (940)
2-3/8" (60)
Drain inside Dia. ø1-1/4" (ø32)
outside Dia. ø1-1/2" (ø37)
3-15/16" (100)
2-3/4" (70)
7-7/8"
9-25/32"
(248.5)
11-3/4"
(298.5)
12" (305.5)
2-3/8" (60)
3-15/16" (100)
2-3/4" (70) 29-17/32" (750mm)
32-3/4" (830mm)
29-17/32" (750mm)
32-3/4" (830mm)

1-3/16" (30mm)
37" (940mm)
37" (940mm)
29-17/32" (750mm)
32-3/4" (830mm)
29-17/32" (750mm)
32-3/4" (830mm)
11-5/8" (296mm)
2-3/8" (60mm)
Drain pipe
11-3/4"
(298.5mm)
11-7/32" (285mm)
12"
(305.5mm)
9-25/32"
(248.5mm)
5-29/32" (150mm)
4-23/32" (120mm)
2-3/8" (60mm)
12"
(305.5mm)
11-3/4" (298.5mm)
9-25/32"
(248.5mm)
5-29/32" (150mm) 4-23/32" (120mm)
9-27/32" (250mm)
Drain pipe (I.D.1-1/4" (32mm))
(O.D.1-1/2" (37mm))
(I.D.1-1/4" (32mm))
(O.D.1-1/2" (37mm))
Unit : inch (mm)
INDOOR UNIT
Models :
AUU36RCLX, AUU42RCLX
2006.03.03 4

Unit : inch (mm)
OUTDOOR UNIT
Models:
AOU18RLX, AOU24RLX, AOU36RLX
2005.12.21 5
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

Unit : inch (mm)
OUTDOOR UNIT
Model : AOU42RLX
35-1/2" (900)
2005.12.21 6
3"(77)35-1/2" (900)
50-7/8" (1,290)
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

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 :
AUU18RCLX / AOU18RLX
2005.12.21 7

Evaporator
OUTDOOR UNIT
Pressure
Check Valve
Condenser
4-way
Valve
High Pressure
Switch
High Pressure
Switch
Accumulator
Muffler
Accumulator
Compressor
Expansion
Valve Refrigerant Pipe
9.52mm (3/8")
Charging Valve
Charging
Valve
Refrigerant Pipe
15.88mm (5/8")
INDOOR UNIT
Strainer
Strainer
Models :
AUU24RCLX / AOU24RLX
AUU36RCLX / AOU36RLX
OUTDOOR UNIT
Pressure
Check Valve
Condenser
4-way
Valve
Muffler
Compressor
Expansion
Valve Refrigerant Pipe
9.52mm (3/8")
Charging Valve
Evaporator
Charging
Valve
Refrigerant Pipe
15.88mm (5/8")
INDOOR UNIT
Strainer
Strainer
Strainer
: COOL
: HEAT
Models : AUU42RCLX / AOU42RLX
2005.12.21 8

CIRCUIT DIAGRAM
Models :
AUU18RCLX, AUU24RCLX
Models :
AUU36RCLX, AUU42RCLX
2006.03.03 9
YELLOW
YELLOW
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
PURPLE
BLUE
RED
WHITE
WHITE
RED
RED
WHITE
WHITE
WHITE
GREEN /
YELLOW
WHITE WHITE
YELLOWYELLOW
ORANGE ORANGE
RED RED
BROWN BROWN
WHITE
BLACK
RED
GREEN
BLACK WHITE RED
GRAY GRAY
BLACK
BLACK
12
1212
12
1
6
5
3
2
1
6
5
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
2
1
2
1
2
1
2
1
2
1
2
CN7 CN8
CN4 CN5
CN1
CN16 CN6
CN17
CN15 CN10
321
N
Use T3.15A-250V Fuse on F101
TERMINAL
TO REMOTE CONTROL UNIT
PIPE TEMPERATURE THERMISTOR
ROOM TEMPERATURE THERMISTOR
STEP MOTOR
M
FLOAT SWITCH
DRAIN PUMP MOTOR
M
FAN MOTOR
FM
FAN MOTOR
CAPACITOR
G
TERMINAL
TO OUTDOOR UNIT
3
2
(N)
1
CONTROLLER PCB ASSY
POWER SUPPLY
PCB ASSY
L
ORANGE ORANGE
YELLOW YELLOW
WHITE WHITE
RED RED
BROWN BROWN
BLACK
BLACK
BLACK
BLACK
WHITE
WHITE
WHITE
RED
BLACK
BLACK
BLACK
BLACK
YELLOW
YELLOW
WHITE
RED
BLACK
WHITE
RED
BLACK
BLACK GRAY
GRAY
RED
WHITE
BLACK
1
2
3
1
2
3
1
2
3
1
2
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
12
12
12
12
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
2
1
2
1
2
1
2
1
CN7 CN8
CN17
CN4
CN10
CN1
CN15
CN6CN5
GREEN
L
N
Use T3.15A-250V Fuse on F101
G
TERMINAL FAN MOTOR
FM
M
M
DRAIN PUMP MOTOR
FLOAT SWITCH
STEP MOTOR
13
2
(N)
TO OUTDOOR UNIT
POWER SUPPLY PCB
CONTROLLER PCB
321
TERMINAL
FAN MOTOR CAPACITOR
PIPE TEMPERATURE THERMISTOR
ROOM TEMPERATURE THERMISTOR
TO REMOTE CONTROL UNIT

Model :
AOU18RLX, AOU24RLX
2005.12.21 10
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
12 12 12 12 12
1
6
5
4
3
2
132
TM102
TM101 W3 W6 W7 W4 W5
GG
2 (N)
13
LN
EARTH EARTH
EXPANSION VALVE COIL
EV
FM FANMOTOR
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

Model : AOU36RLX
2005.12.21 11
ORANGE
YELLOW
WHITE
BLUE
BROWN
RED
BLUE
YELLOW
WHITE
BLACK
RED
BLACK
BLACK
RED
RED
BLUE
BROWN
BLACK
BLACK
BROWN
RED
GREEN BLACK BLACK
WHITE WHITE
WHITE
BROWN
BLACK
BLACK RED
BLACK
WHITE
ORANGE
ORANGE
BLACK
RED
YELLOW
YELLOW
BLUE
ORANGE
RED
BROWN
BROWN
WHITE
BLACK
BLACK
BLACK
BLACK
REDRED
WHITE WHITE
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
1
2
3
4
5
6
1
2
3
1
2
1212121212
1234 12
123
3
CN1 CN34
CN1 W9 W8
W200
TM102
TM101 W3 W6 W7 W1 W2
W11
W10
W17
W16
W22
W21
W13
W12
CN27
CN802
CN30
CN407
W303
W304
W305 CN37
CN21 CN22 CN23 CN26 CN25
L1
L2
P
N
W
V
U
+-
V
W
U
G2(N)1 3LN
EARTH EARTH
G
EV
POSISTOR
EMI FILTER
2T
CHOKE COIL
TERMINAL
COMPRESSOR
EMI FILTER
1T
CONNECTOR
PIPE TEMPERATURE
THERMISTOR
DISCHARGE TEMPERATURE
THERMISTOR
ACTIVE
FILTER
MODULE
FUSE
F4 T 5A-250V
FUSE
F2 T 3.15A-250V
CONTROLLER
PCB ASSY
POWER SUPPLY PCB ASSY
FM
4WV
EXPANSION VALVE COIL
FAN MOTOR
SOLENOID COIL
HIGH PRESSURE SWITCH
OUTDOOR TEMPERATURE
THERMISTOR
COMPRESSOR TEMPERATURE
THERMISTOR
HEAT SINK TEMPERATURE
THERMISTOR

Model : AOU42RLX
2005.12.22 12
ORANGE
YELLOW
WHITE
BLUE
BROWN
RED
BLUE
YELLOW
WHITE
BLACK
RED
BLUE
YELLOW
WHITE
BLACK
RED
BLACK
BLACK
RED
RED
BLUE
BROWN
BLACK
BLACK
BROWN
RED
GREEN
BLACK BLACK WHITE WHITE
WHITE BROWN BLACK BLACK RED
BLACK
WHITE
GRAY GRAY
WHITE
VIOLET
BLACK
BLACK
RED
YELLOW
YELLOW
BLUE
ORANGE
RED
BROWN
BROWN
WHITE
BLACKBLACK
REDRED
WHITE WHITE
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
1
2
12 12 12 12 12
1234 12
123
3
CN1 CN34
CN1 W9W8
W200
TM102
TM101
W3 W6 W7 W1 W2
W15
W107
W108
W14
CN27
CN802
CN803
CN30
CN407
W303
W304
W305 CN37
CN21 CN22 CN23 CN26 CN25
L1
L2
P
N
W
V
U
+-
+-
V
W
U
G2(N)1 3LN
EARTH
EARTH
G
EV
EMI FILTER
2T
EMI FILTER
2T
EMI FILTER
1T
EMI FILTER
3T
EMI FILTER
2T
CHOKE
COIL
TERMINAL
TERMINAL
RELAY
DIODE BRIDGE
POSISTOR
COMPRESSOR
EMI FILTER
1T
CONNECTOR
PIPE TEMPERATURE
THERMISTOR
DISCHARGE
TEMPERATURE
THERMISTOR
ACTIVE
FILTER
MODULE
FUSE
F4 T 5A-250V
FUSE
F2 T 3.15A-250V
CONTROLLER
PCB ASSY
POWER SUPPLY PCB ASSY
FM
FM
4WV
EXPANSION
VALVE COIL
FAN MOTOR 1
FAN MOTOR 2
SOLENOID COIL
HIGH PRESSURE SWITCH
OUTDOOR TEMPERATURE
THERMISTOR
COMPRESSOR TEMPERATURE
THERMISTOR
HEAT SINK TEMPERATURE
THERMISTOR
ORANGE ORANGE

Models : AUU18RCLX
AUU24RCLX
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
AUU18RCLX : K01AL-050KHSE-C1
AUU24RCLX : K01AL-050LHSE-C1
2005.12.22 13
INDOOR PCB CIRCUIT DIAGRAM

Models : AUU36RCLX
AUU42RCLX
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
AUU36RCLX : K01AL-050MHSE-C1
AUU42RCLX : K01AL-050NHSE-C1
2005.12.22 14

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
2005.12.23 15
OUTDOOR PCB CIRCUIT DIAGRAM

AC230V 60Hz
TERMINAL HP-T3061-3
Model : AOU36RLX
POWER SUPPLY PCB
K04BA-0501HUE-P0
CONTROLLER PCB ASSY
K04AW-0504HUE-C1
INVERTER ASSY
EZ-005HHUE
2005.12.23 16

Model : AOU42RLX
AC230V 60Hz
POWER SUPPLY PCB
K04BA-0502HUE-P0
CONTROLLER PCB ASSY
K04AW-0505HUE-C1
INVERTER ASSY
EZ-005KHUE
2005.12.23 17

600/450V x 4
2005.12.23 18
Models : AOU18RLX, AOU24RLX, AOU36RLX
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
AOU18RLX : K04AW-0503HUE-C1 AOU24RLX : K04AW-0502HUE-C1 AOU36RLX : K04AW-0504HUE-C1

600/450V x 5
2005.12.23 19
Model : AOU42RLX
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
AOU42RLX : K04AW-0505HUE-C1