Fujitsu ABY18UBBJ, ABY24FBBJ, ABY24UBBJ, ABY18FBBJ, AOY18FNBK Service Manual
...
CONTENTS
SPECIFICATIONS
. . . . . . . . . . . . . . . . . . . .
1
OUTLINE AND DIMENSIONS
. . . . . . . . . .
3
REFRIGERANT SYSTEM DIAGRAM
. . . .
5
ERROR DISPLAY
. . . . . .
9
CIRCUIT DIAGRAM
. . . . . . . . . . . . . . . . . . .
7
INDOOR PCB CIRCUIT DIAGRAM
. . . . . . . . . . . . . . . . . . . .
11
DISASSEMBLY ILLUSTRATION
. . . . . . .
12
. . . . . . . . . . . . . . . . . . . . . . . . .
25PARTS LIST
. . . . . . . . . .
29STANDARD ACCESSORIES
SPLIT TYPE
ROOM AIR CONDITIONER
FLOOR CONSOLE /
UNDER CEILING
DUAL type
Indoor unit
Outdoor unit
ABY18FBBJ
ABY18FBBJ
ABY18UBBJ
ABY18UBBJ
ABY24FBBJ
ABY24FBBJ
ABY24UBBJ
ABY24UBBJ
AOY18FNBK
AOY18FNBN
AOY18UNBKL
AOY18UNBNL
AOY24FNBK
AOY24FNBN
AOY24UNBKL
AOY24UNBNL
SPECIFICATIONS
TYPE
INDOOR UNIT
OUTDOOR UNIT
COOLING CAPACITY
POWER SOURCE
FREQUENCY
RUNNING CURRENT
INPUT W ATTS
E.E.R.
MOISTURE REMOVAL
AIR CIRCULATION high
ELECTRICAL DATA
COMPRESSOR
DIMENSIONS
TYPE
DISCRIMINATION
REFRIGERANT
R410A
POWER SOURCE
Discrimination
INDOOR UNIT
High speed
Med speed
Low speed
Discrimination
OUTDOOR UNIT
High speed
INDOOR UNIT H x W x D
H x W x DOUTDOOR UNIT
FAN MOTOR
WEIGHT
INDOOR UNIT GROSS / NET
GROSS / NETOUTDOOR UNIT
PIPE LENGTH
7.5 m (25 ft)
900 g (31.8oz)
1,550 g (54.7oz)
950 g (33.5oz) 1,600 g (56.4oz)
1,050 g (37.0oz)
1,700 g (60.0oz)
1,150 g (40.6oz) 1,800 g (63.5oz)
10 m (33 ft)
15 m (49 ft)
20 m (66 ft)
ADDITIONAL REFRIGERANT
20 g/m (0.71oz / 3.3ft)
FULL CHARGE AMOUNT
REFRIGERANT CHARGE (R410A)
MFB-24JTT
780 r.p.m.
650 x 830 x 320 mm
230 V
50 Hz
230 V
50 Hz
230 V
5.40 kW
Hermetic type, Deposit electrode condenser,
2 poles. Single phase, Induction motor, Rotary
199 x 990 x 655 mm
2.0 l/hr
Cooling
ABY18FBBJ
AOY18FNBK
AOY18FNBN
8.5 A
1.92 kW
2.81 kW/kW
780 m3/hr
5KS225DAC
900 g
1,030 r.p.m.
890 r.p.m.
770 r.p.m.
51 kg / 47 kg
MFA-18JTT
37 kg / 28 kg
ABY24FBBJ
AOY24FNBK
AOY24FNBN
6.50 kW
11.0 A
2.45 kW
2.65 kW/kW
880 m3/hr
5JS290DAA
1,550 g
MFA-24JTT
1,180 r.p.m.
1,040 r.p.m.
900 r.p.m.
62 kg / 58 kg
2.5 l/hr
12006.07.20
1,550 g (54.7oz)
1,700g (60.0oz)
1,600 g (54.6oz)
1,800 g (63.5oz)
1,700 g (60.0oz) 2,000 g (70.6oz)
1,800 g (63.5oz) 2,200 g (77.6oz)
22006.07.25
TYPE
INDOOR UNIT
OUTDOOR UNIT
COOLING CAPACITY
HEATING CAPACITY
POWER SOURCE
FREQUENCY
RUNNING CURRENT
INPUT W ATTS
E.E.R.
COOLING
HEATING
COOLING
HEATING
COOLING
HEATING
MOISTURE REMOVAL
AIR CIRCULATION high
ELECTRICAL DATA
COMPRESSOR
DIMENSIONS
TYPE
DISCRIMINATION
REFRIGERANT
R410A
POWER SOURCE
Discrimination
INDOOR UNIT
High speed
Med speed
Low speed
Discrimination
OUTDOOR UNIT High speed
Low speed
INDOOR UNIT H x W x D
H x W x DOUTDOOR UNIT
FAN MOTOR
WEIGHT
INDOOR UNIT GROSS / NET
GROSS / NETOUTDOOR UNIT
PIPE LENGTH
7.5 m (25 ft)
10 m (33 ft)
15 m (49 ft)
20 m (66 ft)
ADDITIONAL REFRIGERANT
20 g/m (0.71oz / 3.3ft) 40 g/m (1.42oz / 3.3ft)
FULL CHARGE AMOUNT
REFRIGERANT CHARGE (R410A)
MFB-24JTBT
400 r.p.m.
780 r.p.m.
650 x 830 x 320 mm
230 V
50 Hz
230 V
5.40 kW
Hermetic type, Deposit electrode condenser,
2 poles, Single phase, Induction motor, Rotary
199 x 990 x 655 mm
2.0 l/hr
Cool and Heat
ABY18UBBJ
AOY18UNBKL
AOY18UNBNL
8.6 A
1.90 kW
2.84 kW/kW
780 m3/hr
5KS225DAC
1,550 g
1,030 r.p.m.
890 r.p.m.
770 r.p.m.
56 kg / 52kg
MFA-18JTT
37 kg / 28 kg
ABY24UBBJ
AOY24UNBKL
AOY24UNBNL
6.50 kW
6.00 kW 7.40 kW
10.8 A
8.3 A 10.3 A
2.42 kW
1.85 kW 2.30 kW
2.69 kW/kW
3.24 kW/kW 3.22 kW/kW
880 m3/hr
5JS290DAA
1,700 g
MFA-24JTT
1,180 r.p.m.
1,040 r.p.m.
900 r.p.m.
63 kg / 59 kg
2.5 l/hr
OUTLINE AND DIMENSIONS
Unit : mm
INDOOR UNIT
990
900
500
655
530
200175
199
(rear view)
32006.07.21
OUTDOOR UNIT
Unit : mm
42006.07.21
Air flow
Bottom
603
343
350
320
830
650
12
REFRIGERANT SYSTEM DIAGRAM
Models :
ABY18FBBJ / AOY18FNBK
ABY18FBBJ / AOY18FNBN
Models :
ABY24FBBJ / AOY24FNBK
ABY24FBBJ / AOY24FNBN
Cooling
: Flare coupling
Refrigerant pipe
Refrigerant pipe
Refrigerant pipe
Refrigerant pipe
Charging valve
Charging valve
INDOOR UNIT
Evaporator
Evaporator
Capillary tube
Capillary tube
Compressor
Strainer
Strainer
OUTDOOR UNIT
6.35 mm (1/4")
15.88 mm (5/8")
Condenser
Compressor
OUTDOOR UNITINDOOR UNIT
9.52 mm (3/8")
15.88 mm (5/8")
Condenser
52006.07.24
Distributor
Cooling
Heating
: Flare coupling
INDOOR UNIT
Charging valve
Compressor
OUTDOOR UNIT
Accumulator
9.52mm(3/8")
15.88mm(5/8")
Evaporator
Evaporator
Refrigerant pipe
Refrigerant pipe
Refrigerant pipe
Refrigerant pipe
INDOOR UNIT
Strainer
Strainer
Strainer
Strainer
Charging valve
4-Way
valve
4-Way
valve
Compressor
Capillary
tube
Capillary
tube
OUTDOOR UNIT
6.35mm(1/4")
15.88mm(5/8")
Condenser
Models :
ABY18UBBJ / AOY18UNBKL
ABY18UBBJ / AOY18UNBNL
Models :
ABY24UBBJ / AOY24UNBKL
ABY24UBBJ / AOY24UNBNL
62006.07.24
Condenser
CIRCUIT DIAGRAM
INDOOR UNIT
OUTDOOR UNIT
Models :
ABY18FBBJ / AOY18FNBK
ABY18FBBJ / AOY18FNBN
ABY24FBBJ / AOY24FNBK
ABY24FBBJ / AOY24FNBN
72006.07.24
ORANGE
RED
BROWN
YELLOW
WHITE
ORANGE
RED
BROWN
YELLOW
WHITE
WHITE
WHITE
BLACK
BLACK
GREEN
PURPLE
BLUE
PINK
RED
WHITE
BLACK
GRAY
PURPLE
BLUE
WHITE
YELLOW
ORANGE
RED
BROWN
GRAY
GRAY
BLACK
BLACK
1 2 1 2
1
2
3
4
5
6
7
8
1
2
1 2
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
4
6
3
5
2
1
1 31 2
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
CN7
CN8
CN1
CN12
CN5
CN11
CN13
CN10
CN4
CN201
BLACK
BLACK
WHITE
WHITE
RED
RED
GREEN / YELLOW
Use T 3.15A - 250V
Fuse on F101
POWER RELAY
FAN
MOTO
R
ROOM TEMPERATURE
THERMISTO
R
PIPE TEMPERATURE
THERMISTO
R
FAN MOTOR
CAPAC
ITOR
STEP MOTOR
( UP / DOW
N )
STEP MOTOR
( LEFT / RIGHT )
TERMINAL
32
( N )
1
( L )
L N
POWER SUPPLY
PCB ASSY
INDICATOR PCB ASSY
CONTROLLER PCB ASSY
F M
M
M
BLACK
BLACK
WHITE
WHITE
WHITE
BROWN
BROWN
WHITE
BLACK
WHITE
BLACK
RED
BLACK
INTERNAL
OVERLOARD
PROT
ECTOR
THERMAL
PROT
ECTOR
COMPRESSOR
CAPACITOR
FAN MOTOR
CAPAC
ITOR
FUSE 5A
MAIN RELAY
COMPRESSOR
RED
S
C
R
6
1
4
5
FAN
MOTOR
POWER
SOURCE
1(L) 2(N)
3
NL
OUTDOOR UNIT
INDOOR UNIT
ORANGE
YELLOW
WHITE
RED
BROWN
ORANGE
YELLOW
WHITE
RED
BROWN
BROWN
RED
ORANGE
YELLOW
WHITE
BLUE
PURPLE
GRAY
BLACK
WHITE
RED
PINK
PURPLE
BLUE
GREEN
WHITE
WHITE
BLACK
BLACK
GRAY
GRAY
GREEN / YELLOW
BLACK
BLACK
WHITE
WHITE
BLUE
BROWN
RED
GRAY
CN7
CN8
CN201
CN1
CN19
CN2
CN11
CN10
CN5
CN13
CN4
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
4
6
3
5
2
1
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
1 2
1
2
1 2
1 2 1 2 3 2 1
FAN
MOTOR
TERMINAL
STEP MOTOR
( LEFT / RIGHT )
N
L
1
(L)
2
(N)
3 4 5 6
STEP MOTOR
( UP / DOWN )
FAN MOTOR
CAPAC
ITOR
ROOM TEMPERATURE
THERMISTO
R
PIPE TEMPERATURE
THERMISTO
R
POWER SUPPLY PCB
Use T3.15A-250V
Fuse on F101
INDICATOR PCB
CONTROLLER PCB
F M
M
M
MAIN RELAY
1 (L)
2 (N)
N
L
3
4
5 6
FUSE 5A
TO POWER
SUPPLY
COMP.
CAPA
CITOR
COMPRESSOR
FAN MOTOR
4-WAY
VA
LVE
COIL
FAN MOTOR
CAPA
CITOR
R
S
C
1
4
6
5
INTERNAL
OVERLOAD
PROTECTO
R
THERMAL
PROTECTO
R
S. V.
BLACK
BLACK
BLACK
BLACK
WHITE
WHITE
WHITE
WHITE
BLUE
RED
BROWN
BROWN
RED
WHITE
BLACK
BLACK
BLACK
Models :
ABY18UBBJ / AOY18UNBKL
ABY18UBBJ / AOY18UNBNL
ABY24UBBJ / AOY24UNBKL
ABY24UBBJ / AOY24UNBNL
82006.07.24
14V
NC
NC
IC5 (5/7)
uPA
2003GR
IC6 (3/7)
uPA
2003GR
NC
NC
14
13
12 5
4
3
2
15
14
3
13 4
12
5
11
6
K2
K1
K3
NC
IC5 (1/7)
uPA
2003GR
CR1 10K
<1/10W>
10
7
8
5V
R13 10K
<1/10W>
R93 - R96
10K <1/10W> x 4
C18
0.01
<F>
C17
0.01
<F>
Q3
DTC124EKA
5V
5V
IC9
TLP621
<GB>
R12 1.0K
<1/10W>
D8
D1F60
R10 10K
<1/10W>
R9 390
<1/10W>
CR6
0.01
<F>
R11 56K
<1W>
C26 - C29
0.01 <F> x 4
R33 - R36
1.0K <1/10W> x 4
R29 - R32
10K <1/10W> x 4
NC
5V
JM10
5V
IC3
7805
C13
0.1
<F>
C14
100/
6.3V
+
C15
0.1
<F>
C47
0.1
<F>
I
O
G
14V
R59 10K <1/10W>
R97 10K <1/10W>
R99 10K <1/10W>
R98 10K <1/10W>
PRIMARY
SECONDARY
C54
0.01 <F>
T1
SWITCHING T
RANSFORMER
ZFT29B01
D6
D2FL20U
C9
1000
/25V
R8 10K
<1/10W>
+
C19 - C21
0.01 x 3 <F>
5V
R15 - R17
10K <1/10W> x 3
JM1
JM2
JM3
NOT USED
CUSTOM CODE SWITCHING (R1)
CUSTOM CODE SWITCHING (R2)
R20 1.0K <1/10W>
R18 1.0K <1/10W>
R19 1.0K <1/10W>
C6
4700P
R5 62K
<2W>
D5
1SR139-600
D10
1SR139-600
R4 330K
<2W>
R6 100
<1/2W>
C7
0.047
D2
D1FL20U
D4
D1FL20U
D3
MTZJ5.1B
Q1
2SC4236
Q2
2SC1815
R3 100
<1/10W>
R2 1.5
<2W>
+
C5
100/
450V
D1
D3SB60
R1 3.3
<5W>
JM6
+
R7 330
<1/4W>
C8
100/
6.3V
C101
0.22
C105
0.022
C106
0.022
C103
0.01
C104
0.01
VA2
470V
K1
G5S-1
SSR1
G3MC-201PL-VD
+
-
5V
R21 - R24
10K <1/10W> x 4
K3
G5S-1
R25 - R28
1.0K <1/10W> x 4
14V
5V
14V
C22 - C25
0.01 <F> x 4
NC
TEST
MAGNATIC
RELAY
NC
IC6 (3/7)
uPA
2003GR
9
8
15
10
16
2
7
1
CN12-3
CN12-1
CN12-2
CN9-1
CN9-5
CN9-4
CN9-3
CN9-2
UL1430 AWG24
UL1430 AWG24
RED
RED
NO.1
NO.3
NO.2
SW1
DSS803
AUTO RESTART SWITCHING
ROOM TEMPERATURE CORRECTION
( HEAT
ING OPERATION )
ROOM TEMPERATURE CORRECTION
( HEAT
ING OPERATION )
X1 5MHz
C44
0.1
<F>
2
1
3
70 69
X1 X2
60
RESET
64
P03
73
22
23
24
P45
P44
P43
XT1
61
P00
78
P12
79
P13
P14
80
25
P46
26
P47
14
P23
P24
15
50
P36
6
10
9
8
P131
P72
P71
P70
P01
62
32
P55
31
30
29
28
P54
P53
P52
P51
5
11
12
13
P130
P20
P21
P22
16
17
18
27
P25
P26
P27
P50
34
P56
P57 35
P11 77
P10 76
1
2
3
54
P15
P16
P17
55
66
65
74
68
75
P122
P123
P05
P04
7
4
VDD0
VDD1
AVRF0
AVRF1
67
33
71
72
56
AVSS
VSS0
VSS1
I C
XT2
P124
P125
P126
P127
57
58
59
63
P02
41
P65
42
P66
40
P64
39
P63
38
P62
37
P61
36
52
P60
P120
5149P37
P35
43
44
45
46
P67
P30
P31
P32
48
53
47
19
P34
P121
P33
P40
P41
P42
20
21
3
1
2
1
2
3
4
5
6
7
8
D0
D1
SK
CS
VCC
NC
NC
GND
CN13-1
CN13-6
CN13-5
CN13-8
CN13-4
CN13-3
CN13-2
CN13-7
BROWN
RED
ORANGE
YELLOW
GRAY
WHITE
PURPLE
BLUE
BROWN
RED
ORANGE
YELLOW
GRAY
WHITE
PURPLE
BLUE
UL1430 AWG28
1
2
3
4
8
5
7
6
+
5V
C41
10/
25V
C42
0.01
<F>
CN13
B8B-XASK-1-A
WHITE
CN201
7P-SCN
SW201
MANUAL AUTO
SWITCH
EVQ PEE 04R
INDICATOR PCB
EZ-0964HSE-D
PHA201
OUT
SBX1810
-22
LOUVER
LOUVER
TIMER
OPERATE
5V
C202
10/
25V
+
C201
0.1
<F>
UL1430 AWG28
R201 330 <1/4W>
R202 330 <1/4W>
R204 330 <1/4W>
R203 330 <1/4W>
D201 SLR-325 <RED>
D202 SLR-325 <GRN>
D204 SLR-325 <ORG>
D203 SLR-325 <ORG>
BROWN
RED
ORANGE
YELLOW
WHITE
BROWN
RED
ORANGE
YELLOW
WHITE
BROWN
RED
ORANGE
YELLOW
WHITE
BROWN
RED
ORANGE
YELLOW
WHITE
CN10-1
CN10-5
CN10-4
CN10-3
CN10-2
CN11-1
CN11-5
CN11-4
CN11-3
CN11-2
CN14-1
HA
JEM-A
CN14-4
CN14-3
CN14-2
M
M
LOUVER
( UP / DOWN )
LOUVER
( RIGHT / LEFT )
GRAY
GRAY
ROOM TEMPERATURE THERMISTOR
PIPE TEMPERATURE THERMISTOR
5V
5V
Q4
DTC124EKA
5V
R47 390
<1/10W>
CN14
B4B-XH-AM
WHITE
CN8
CN7
B2B-XASK-1-A
CN8-1
CN8-2
BLACK
BLACK
WHITE
B2B-XAKK-1-A
CN7-1
UL1430 AWG24 GRAY
CN7-2
UL1430 AWG24 GRAY
BLACK
14V
C38
0.01
<F>
CN10
B5B-XASK-1-A
WHITE
R49 1.0K
<1/10W>
R48
10K
<1/10W>
CN11
B5B-XARK-1-A
RED
5V
R52 10K
<1/10W>
R53 10K
<1/10W>
5V
R54 47
<1/10W>
C39
0.1
<F>
14V
CR5
1000P
<R>
R51 1.0K
<1/10W>
R50 10K
<1/10W>
C40
0.01
<F>
IC7
BR93LC46RF
R77 - R79
10K <1/10W> x 3
5V
IC6 (1/7)
uPA
2003GR
6 11
R56 1.0K
<1/10W>
R57 1.0K
<1/10W>
BZ1
PKM13EPY-
4000
B Z
5V
JM11
5V
C1
0.1
<F>
R68 10K
<1/10W>
5V
R80 10K <1/10W>
RJ2 10K <1/10W>
R69 10K <1/10W>
R70 10K <1/10W>
5V
CR7
0.01
<F>
C49
0.01
<F>
C43
0.01
<F>
C16
0.01
<F>
C31
0.01
<F>
R67 1.0K <1/10W>
R81 1.0K <1/10W>
RJ1 1.0K <1/10W>
R71 1.0K <1/10W>
R72 1.0K <1/10W>
C45
0.1
<F>
R55 10K
<1/10W>
IC8
PST600C
R75 10K <1/10W>
R76 10K <1/10W>
R100 10K <1/10W>
R58 10K <1/10W>
CR2 10K <1/10W>
CR4 10K <1/10W>
CR3 10K <1/10W>
IC4 (7/7)
uPA
2003GR
IC5 (1/7)
uPA
2003GR
14V
1
9
16
8
7
5
4
2
10
12
9
13
15
1 16
143
6
11
14V
C34
0.1
<F>
C37
0.1
<F>
R43
10K (1%)
<1/10W>
R45
49.9K (1%)
<1/10W>
C32
1000P
<R>
C35
1000P
<R>
R44 1.0K
<1/10W>
R46 1.0K
<1/10W>
I C 1
uPD780058BGC
-057-8BT
R40 1.0K <1/10W>
R41 1.0K <1/10W>
R42 1.0K <1/10W>
0.01 <F> x 3
C10 C12
C30
10K <1/10W> x 3
R37R38
R39
CN12
B3B-XASK-1-A
WHITE
CN9
B5P-SHF-1AA
WHITE
CN5
B6P11-VH-B
WHITE
K2
G5S-1
POWER RELAY
VF12HU-UL
30A
OUTDOOR UNIT
E
POWER SOURCE
220 / 240V
50Hz
TERMINAL BOARD
1(L)
2(N)
3
UL1015 AWG14 BLACK
UL1015
AWG20
F M
YELLOW / GREEN
BLACK
WHITE
RED
PINK
PURPLE
BLUE
BLACK
WHITE
RED
PINK
PURPLE
BLUE
FAN MOTOR
UL1015 AWG14 BLACK
UL1015 AWG14 WHITE
UL1015 AWG14 BLACK
UL1015
AWG15
GREEN
UL1015 AWG18 WHITE
UL1015 AWG18 WHITE
UL1015 AWG18 WHITE
UL1015 AWG18 BLACK
FAN CAPACITOR
CN1 B2P3-VH-B-C BLACK
AC I N
CN4
B2P3-VH-B-Y
YELLOW
CN4-1
CN4-2
CN5-1
CN5-2
CN5-3 (H)
CN5-4 (M)
CN5-5 (L)
CN5-6 (SL)
CN1-2
CN1-1
POWER SUPPLY PCB
EZ-00101HSE-P
W104
W103E101
W102
TM102
W101
TM101
L
N
SA101
<3600V>
VA101
470V
VA102
470V
C102
0.22
BET
FH1
FH2
F101
3.15A
<250V>
LF101
ELF20N018A
ABY18FBBJ : EZ-002YWSE-C
ABY24FBBJ : EZ-002TWSE-C
INDOOR PCB CIRCUIT DIAGRAM
Controller PCB Assy
92006.07.24
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