Fujitsu AOY25FNAKT User manual

CONTENTS
SPECIFICATIONS
. . . . . . . . . . . . . . . . . . . 1
OUTLINE AND DIMENSIONS
. . . . . . . . . 2
CIRCUIT DIAGRAM
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
4
REFRIGERANT SYSTEM DIAGRAM
. . . .
5
INDOOR PCB CIRCUIT DIAGRAM
. . . . . 6
ERROR CONTENTS 7
DISASSEMBLY ILLUSTRATION
. . . . . . . . 8
PARTS LIST
. . . . . . . . . . . . . . . . . . . . . . 15
SPLIT TYPE
AIR CONDITIONER
CASSETTE type (50Hz)
Models
Indoor unit Outdoor unit
AUY25FUAR AOY25FNAKT

2006.05.24 1
SPECIFICATIONS
HIGH
490 r.p.m.
FAN SPEED
INDOOR MED
430 r.p.m.
LOW
360 r.p.m.
OUTDOOR
780 r.p.m.
AIR FLOW
INDOOR
1,100 m3/hr
OUTDOOR
INDOOR
OUTDOOR
3,200 m3/hr
DIMENSIONS
H x W x D
INDOOR
246 x 830 x 830 mm
GRILLE
35 x 940 x 940 mm
OUTDOOR
650 x 830 x 320 mm
WEIGHT
NET / GROSS
34 kg / 44 kg
56 kg / 60 kg
MAX PIPE LENGTH 25 m
MAX PIPE HEIGHT 15 m
REMOTE CONTROLLER TYPE WIRED
PIPE LENGTH 7.5 m (24 ft.)
10 m (33 ft.)
15 m (49 ft.)
20 m (66 ft.)
25 m (82 ft.)
20 g / m (0.7 oz / ft.)
1,550 g (54.7 oz)
1,600 g (56.4 oz)
1,700 g (60.0 oz)
1,800 g (63.5 oz)
1,900 g (67.0 oz)
ADDITIONAL CHARGE
FULL CHARGE
AMOUNT
ADDITIONAL REFRIGERANT CHARGE (R410A)
POWER SOURCE
FREQUENCY
RUNNING CURRENT
INPUT WATTS
E.E.R.
MOISTURE REMOVAL
AUY25FUAR
AOY25FNAKT
7.05 kW
TYPE COOLING
INDOOR UNIT
OUTDOOR UNIT
COOLING CAPACITY
50 Hz
ELECTRICAL DATA
COMPRESSOR
TYPE
DISCRIMINATION
REFRIGERANT R410A
Hermetic type, 2 pole,
Single phase,
Induction motor, Rotary
4.9 A
2.40 kW
2.94 kW/kW
STARTING CURRENT 27 A
2.5 L/hr
5JS290PCA01
1,550 g
3N 400 V

OUTLINE AND DIMENSIONS
305.5
298.5
248.5
200
60 (Drain pipe) 100 (Small pipe) 70 (Large pipe)
305.5
298.5
248.5
235
60 (Drain pipe)
Drain inside Dia. ø32
outside Dia. ø37
100 (Small pipe) 70 (Large pipe) 940
246
30
940 830
830
INDOOR UNIT
Model : AUY25FUAR
( unit : mm )
2006.04.04 2
Bottom view (panel) Bottom view
Side view
Side view (Slender setting)Side view (Standard setting)

OUTDOOR UNIT
Model : AOY25FNAKT
( unit : mm )
Air flow
Bottom
603
343
350
320
830
650
12
2006.03.30 3

REFRIGERANT SYSTEM DIAGRAM
Cooling
: Flare coupling
Models : AUY25FUAR / AOY25FNAKT
Strainer
Refrigerant pipe
15.88 mm (5/8")
Refrigerant pipe
9.52 mm (3/8") Capillary tube
Charging valve
Compressor
OUTDOOR UNITINDOOR UNIT
Evaporator Condenser
2006.03.30 4

Models : AUY25FUAR / AOY25FNAKT
CIRCUIT DIAGRAM
to outdoor unit
Fan motor
Fan motor
capacitor
Drain pump
motor
Thermistor
(pipe temp.)
Thermistor
(room temp.)
Stepping
motor
to remote
control unit
Controller
PCB
FM
M
Terminal
Terminal
Filter board
2006.03.30 5
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE WHITE
PURPLE
BROWN
BROWN
GRAY
BLACK
RED
RED
BLACK
GRAY
GRAY
BLACK
BLACK
RED
BLUE
C
H L
R
S
TA
B
C
A2
A1
22
21
14
13
6
53
4
1
2
U(S)
V(R)
W(C)
INTERNAL
OVERLOAD
PROTECTOR
THERMAL
PROTECTOR
1
3
6
4
1
3
6
4
FUSE 250V-5A
FAN MOTOR
CAPACITOR
RELAY
FAN MOTOR
OUTDOOR
THERMOSTAT
COMPRESSOR
MAGNETIC RELAY
TO POWER SUPPLY TO INDOOR UNIT
R(L1) S(L2) T(L3) N 32(N) 1
C. M.
F. M.

12V14V
PRIMARY SECONDARY
C54 0.01 <F>
+
+
SWITCHING TRANSFORMER
T1
ZFT29B01 D6
D2FL20U
IC2
7812
7805
IC3
C8
100/6.3V
C9
1000
/25V
R8 10K <1/10W>
+
R6 100
<1/2W>
C7 0.047
<ECQB>
D2
D1FL20U
D4
D1FL20U
D3
MTZJ5.1B
R7 330
<1/4W>
5V
R15-R17
10K <1/10W> x 3
JM1
JM2
JM3
REMOTE CONTROL
CUSTOM CODE SWITCHING (R1)
REMOTE CONTROL
CUSTOM CODE SWITCHING (R2)
I
GO
IO
G
C11
10/
25V
C13
0.1
<F>
C14
100/
6.3V
+C15
0.1
<F>
C47
0.1
<F>
5V
1
2
3
52
54
55
66
65
74
68
75
7
4
67
33
71
72
56
57
58
59
63
19
20
21
40
39
38
37
36
43
44
45
46
41
50
1
70 69 3
2
60
73
22
23
24
42
80
79
78
62
53
61
32
47
48
49
51
52
5
11
12
13
16
17
18
27
64
34
35
26
14
15
25
6
10
9
8
31
30
29
28
77
76
P15
P16
P17
P120
P122
P123
P05
P04
VDD0
VDD1
AVRF0
AVRF1
AVSS
VSS0
VSS1
I C
XT2
P124
P125
P126
P127
P02
P40
P41
P42
P64
P63
P62
P61
P60
P67
P30
P31
P32
P65
P36
X1 X2
XT1
RESET
P45
P44
P43
P66
P14
P13
P12
P01
P121
P00
P55
P33
P34
P35
P37
P120
P130
P20
P21
P22
P25
P26
P27
P50
P03
P56
P57
P47
P23
P24
P46
P131
P72
P71
P70
P54
P53
P52
P51
P11
P10
I C 1
uPD780058BGC
-108-8BT NC
NC
NC
NC
NC
NC
JM10
5V
CR6
0.01
<F>
C17
0.01
<F> Q3
DTC124EKA
R10 10K
<1/10W>
R9 390
<1/10W>
C26-C29
0.01 x 4
<F>
C18
0.01
<F>
5V
5V
R12 1.0K
<1/10W>
R13 10K
<1/10W>
R11
56K
<1W>
D8
D1F60
IC9
TLP621
(D4)-GB
SSR1
G3MC-202PL-VD DC12V
VA2
470
<TNR>
14V
+
-
14V
K 4
5V
R21-R24
10K <1/10W> x 4
IC5 (1/7)
uPA2003GR
IC6 (1/7)
uPA2003GR
CR8
TA120C33
K8
G5N-1A
CN19
B2P3-VH-B-R
RED
CN19-1
UL1015 AWG18 GRAY
OUTDOOR UNIT
E
3
2
1
TERMINAL BOARD
FAN MOTOR
UL1015 AWG18 BLACK
UL1015 AWG18 WHITE
UL1015 AWG22
BLACK
UL1015 AWG22
WHITE
UL1015 AWG22
RED
CN5
B6P11-VH-B
WHITE
CN5-3
CN4-2
CN5-1
CN5-2
CN4-1
UL1015 AWG20 WHITE
UL1015 AWG20 WHITE
UL1015 AWG16 GREEN
CN4
B2P3-VH-B-Y YELLOW
UL1015 AWG18 WHITE
UL1015 AWG18
BLACK
FAN CAPACITOR
440V 6uF
EMI FILTER
ZCAT1518-0730
1TURN
CN1-1
CN1-2
CN1
B2P3-VH-B-C BLACK
W103 W104 POWER SUPLLY PCB
SW1
DSS803
NO.1
NO.2
NO.3
E101
TM102
SA101
RA-362M
LF101
ELF20N018A
VA101
470
<TNR>
VA102
470
<TNR>
TM101 FH101 FH102
F101
3.15A
<BET>
N
L
5V 5V
5V
R51 1.0K
<1/10W>
R52
10K
<1/10W>
R60
10K
<1/10W>
R61
10K
<1/10W> 12V
R62 4.7K
<1/10W>
Q5
2SC2712
Q6
2SC2712
12V
IC6 (1/7)
uPA2003GR
12V
D7
DA226U
5V
IC11-1
BA10358
IC11-2
BA10358
R66 10K <1/10W>
R65 390
<1/10W>
CR1-CR5
10K <1/10W> x 5
710
+
-
-
+
R63
15.4K (1%)
<1/10W>
R64
28.0K (1%)
<1/10W>
12V
L2
L4
L3
CN17-1
CN17-3
CN17-2
5
3
1
12
14
16
4
2
8
915
13
14V
14V
K 8
IC6 (5/7)
uPA2003GR
14V
CN10
B5B-XASK-1-A UL1430 AWG28
CN10-1
CN10-5
CN10-4
CN10-3
CN10-2
BROWN
RED
ORANGE
YELLOW
WHITE
BROWN
RED
ORANGE
YELLOW
WHITE
M
LOUVER
( UP / DOWN )
CN17
B3B-XAKK-1-A
BLACK
REMOTE
CONTROL UNIT
EZ-099CWSE-R
TERMINAL BOARD 3 2 1
UL1430 AWG22 RED
UL1430 AWG22 WHITE
UL1430 AWG22
BLACK
BLACKUL1430 AWG22
BLACK
UL1430 AWG22
FLOAT SWITCH
5V
C45
0.1
<F>
IC8
PST600C
5V C49
0.01
<F>
2
3
1
C44
0.1
<F>
R55 10K
<1/10W>
X1 CSTS0500MG03-T
CN9
B5P-SHF-1AA
TEST
CN9-1
CN9-5
CN9-4
CN9-3
CN9-2
6
7
11
10
9
11 6
12 5
4
13
3
2
14
15
8
IC5 (5/7)
uPA2003GR
R25-R28
1.0K <1/10W> x 4
C22-C25
0.01 x 4
<F>
5V
R93-R96
10K <1/10W> x 4
C30
0.01
<F>
C10
0.01
<F>
C12
0.01
<F>
R41 1.0K <1/10W>
R40 1.0K <1/10W>
R42 1.0K <1/10W>
R39 10K <1/10W>
R37 10K <1/10W>
R38 10K <1/10W>
C101
0.22
<RE-C>
C102
0.22 C106
0.022
<YE>
C105
0.022
<YE>
C104
0.01
<F>
C103
0.01
<F>
DRAIN PUMP M
YELLOW
YELLOW BLACK
BLACK
UL1015 AWG22
UL1015 AWG22
CN6-1
CN6-2
K4 G5NB-1A DC12V
C3 0.22 <RE>
R88 120 <1/2W>
CN6
B2P3-VH-B-E BLUE
R2 1.2
<RSP2-2W>
+
C5
100/
450V
D1
D3SB60
Q2
2SC1815
R3 100
<1/10W>
Q1
2SC4236
R1 3.3
<RGGS-5W>
R4 330K
<SPRH-2W>
R5 62K <RSP2-2W>
C6
4700P
<ECQM>
D5
1SR139-600
D10
1SR139-600
CN3
53406-9910
CN3-1
CN3-2
GRAY
GRAY
THERMAL FUSE
8
4
2
1C
SW2
DRS4016-5
R29-R32
10K <1/10W> x 4
R33-R36
1.0K <1/10W> x 4
5V
R59 R97 R98 R99
10K <1/10W> x 4
C19-C21
0.01 x 3 <F>
R20 1.0K <1/10W>
R19 1.0K <1/10W>
R18 1.0K <1/10W>
5V
4
3
2
1
8
7
6
5
D0
D1
CK
CS
VCC
NC
NC
GND
R77-R79
10K <1/10W> x 4 IC7
BR93LC46RF
R50 10K <1/10W>
C39
0.1
<F>
C37
0.1
<F>
C34
0.1
<F>
R43
10K (1%)
<1/10W>
R45
49.9K (1%)
<1/10W>
R44 1.0K
<1/10W>
R46 1.0K
<1/10W>
C32
1000P
<R>
C35
1000P
<R>
5V
5V
R58 R75 R76 R100
10K <1/10W> x 4
ROOM TEMPERATURE THERMISTOR
PIPE TEMPERATURE THERMISTOR
CN8
B2B-XASK-1-A
CN8
B2B-XAKK-1-A
BLACK
CN8-1 BLACK
BLACK
CN8-2
CN7-2
CN7-1
GRAY
GRAY
5V
5V
C38
0.01
<F>
R48
10K
<1/10W>
R49 1.0K
<1/10W>
C1
0.1
<F>
R68 10K
<1/10W>
CR7
0.01
<F>
R67 1.0K
<1/10W>
Q4
DTC124EKA
5V
R47 390
<1/10W>
CN14
B4B-XH-AM
CN14-3
CN14-2
CN14-1
CN14-4
HA
JEM-A
ROOM TEMPERATURE CORRECTION
( HEATING OPERATION )
ROOM TEMPERATURE CORRECTION
( HEATING OPERATION )
ZONE CONTROL
SWITCHING
IC5 (1/7)
uPA2003GR
IC4 (7/7)
uPA2003GR
14V
1
3
5
7
1 16
10
12
14
16
2
4
611
13
15
9
8
CN15-1
CN15-3
CN15-2
CN15
B3B-XARK-1-A
RED
5V
NO.3
NO.2
NO.1
ROOM TEMPERATURECORRECTION
( COOLING OPERATION )
INDOOR ROOM FAN SWITCHING
NO.3
NO.1
NO.2 INDOOR ROOM FAN SWITCHING
RJ1 1.0K
<1/10W>
RJ2 1.0K
<1/10W>
0.01 <F> x 3
C31 C16 C43
R81 1.0K <1/10W>
R71 1.0K <1/10W>
R72 1.0K <1/10W>
SW4
DSS803
10K <1/10W> x 3
R70 R69 R80
POWER SOURCE
230V
50Hz
CONTROLLER PCB ASSEMBLY
K01AL-0401WSE-C
Model : AUY25FUAR
F M
UL1015 AWG22
BLUE
UL1015 AWG22
PURPLE
JM5
K1
GDS-1 12V
K3
GDS-1 12V
CN5-5
CN5-6
L
H
M
CN16-1
CN16-3
CN16-2
UL1430 AWG22
RED
BLACK
WHITE F M
FEED BACK
CN16
B3P-VH-B
INDOOR PCB CIRCUIT DIAGRAM
2006.03.30 6
30TURN

SU MO TU WE TH FR SA
(1) Stop the air conditioner operation.
(2) Press the master control button and the fan control button
simultaneously for 2 seconds or more to start the test run.
Unit number (usually 0)
Error code
(3) Press the start/stop button to stop the test run.
SELF-DIAGNOSIS
When the error indication E:EE is displayed, follow the following
items to perform the self-diagnosis.
E:EE indicates an error has occurred.
REMOTE CONTROLLER DISPLAY
(1) Stop the air conditioner operation.
(2) Press the set temperature buttons simultaneously for
5 seconds or more to start the self-diagnosis.
Refer to the following table
for the description of each error code.
Test run display
(3) Press the set temperature buttons simultaneously for
5 seconds or more to stop the self-diagnosis.
Ex. Self-diagnosis
Room temperature sensor open
Room temperature sensor short-circuited
Indoor heat exchanger temperature sensor open
Indoor heat exchanger temperature sensor short-
circuited
Outdoor heat exchanger temperature sensor open
Outdoor heat exchanger temperature sensor short-
circuited
Power source connection error
Float switch operated
Outdoor temperature sensor open
Outdoor temperature sensor short-circuited
Discharge pipe temperature sensor open
Discharge pipe temperature sensor short-circuited
Outdoor high pressure abnormal
Discharge pipe temperature abnormal
Model abnormal
Indoor fan abnormal
Outdoor signal abnormal
Outdoor EEPROM abnormal
02
03
04
05
06
07
08
09
0A
0b
0c
0d
0E
0F
11
12
13
14
Error code Error contents
Communication error
(indoor unit remote controller)
Communication error
(indoor unit outdoor unit)
00
01
ERROR CONTENTS
2006.03.30 7

692
544
710
469
468
858
487
487
71
71
858
61
240
93
545
544
705
847
542
705
847
692
690
692
847
543
543
544
544
122
543
122
847
692
690
692
847
543
847
122
690
847
692
226
338
522
122
122
834-2
876-2
472-4
253-A
472-2
472-3
777-2
777-1
472-1
472-5
472-5
472-5
472-5
DISASSEMBLY
ILLUSTRATION
Model : AUY25FUAR
2006.03.30 8

479
467 127
835 482
798
835 484
465
244
155
903
904
563
814
484
484 464
462
164
484
168
474
477
223
457 488
160
457
514
803
187
460-1
834-1
117-3
476-2
143-3
460-2
197
197
565
337-1
146-2
146-1
337-1
337-2
Model : AUY25FUAR
235
735
138
187
184-1
2006.03.30 9