Fujitsu ARHF12LALU User manual

INVERTER SPLIT TYPE
AIR CONDITIONER (50Hz)
DUCT TYPE
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . 1
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . 3
CIRCUIT DIAGRAM
. . . . . 5REFRIGERANT SYSTEM DIAGRAM
. . . . . . . . . . . . . . . . . . . 6
ERROR CONTENTS
. . . . . . . 7INDOOR PCB CIRCUIT DIAGRAM
. . . . 10OUTDOOR PCB CIRCUIT DIAGRAM
. . . . . . . . . . . . . . . . . 12
PARTS (INDOOR UNIT) . . . . . . . . . . . . . . 14
PARTS (OUTDOOR UNIT) . . . . . . . . . . . . 17
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . 20
Indoor unit Outdoor unit
ARHF12LALU
ARHF12LALU
ARHF14LALU
ARHF14LALU
ARHF18LALU
ARHF18LALU
AOHA12LACL
AOHA12LALL
AOHA14LACL
AOHA14LALL
AOHA18LACL
AOHA18LALL

2008.07.31 1
SPECIFICATIONS
TYPE Inverter Cool & Heat
INDOOR UNIT ARHF12LALU
OUTDOOR UNIT AOHA12LA_L
COOLING CAPACITY 3.50 kW
HEATING CAPACITY 4.10 kW
POWER SOURCE 230 V
FREQUENCY 50 Hz
RUNNING CURRENT
Cooling 4.6 A
Heating 4.9 A
INPUT WATTS
Cooling 1.05 kW
Heating 1.11 kW
E.E.R.
Cooling 3.33 kW/kW
Heating 3.69 kW/kW
STARTING CURRENT 4.9 A
MOISTURE REMOVAL 1.3 L/hr
MFH-24RVL
880 r.p.m.
780 r.p.m.
720 r.p.m.
620 r.p.m.
700 r.p.m.
MFE-18ROM
Discrimination
Discrimination
High
FAN SPEED
INDOOR UNIT Med
Low
OUTDOOR UNIT
Heating
770 r.p.m.
Cooling
ELECTRICAL DATA
Note : The above list shows values at the external static pressure
of 0Pa, setting the fan speed high notch. (indoor unit)
Note : The above list shows values at the external static pressure
of 0Pa, setting the fan speed high notch. (indoor unit)
AIR FLOW
INDOOR UNIT
720 m3/h
OUTDOOR UNIT
1,780 m3/h
High
Med 630 m3/h
Low
Quiet
560 m3/h
480 m3/h
Cooling
Heating 1,630 m3/h
Inverter Cool & Heat
ARHF18LALU
AOHA18LA_L
5.20 kW
6.00 kW
230 V
50 Hz
7.1 A
7.3 A
1.62 kW
1.66 kW
3.21 kW/kW
3.61 kW/kW
7.7 A
2.0 L/hr
MFH-24RVL
1,040 r.p.m.
950 r.p.m.
840 r.p.m.
740 r.p.m.
820 r.p.m.
MFE-18ROM
860 r.p.m.
820 m3/h
2,000 m3/h
720 m3/h
610 m3/h
550 m3/h
1,910 m3/h
Inverter Cool & Heat
ARHF14LALU
AOHA14LA_L
4.30 kW
5.00 kW
230 V
50 Hz
5.8 A
5.9 A
1.33 kW
1.34 kW
3.21 kW/kW
3.71 kW/kW
5.9 A
MAXIMUM CURRENT 10.0 A 12.5 A12.5 A
1.5 L/hr
MFH-24RVL
1,040 r.p.m.
950 r.p.m.
840 r.p.m.
740 r.p.m.
750 r.p.m.
MFE-18ROM
820 r.p.m.
870 m3/h
1,910 m3/h
770 m3/h
670 m3/h
580 m3/h
1,740 m3/h
Note : The above list shows values at the external static pressure
of 0Pa, setting the fan speed high notch. (indoor unit)
Quiet
When you dismantle indoor units which are installed,
take care not to make parts fall down, especially motors.

2008.07.31 2
INDOOR UNIT ARHF12LALU
OUTDOOR UNIT AOHA12LA_L
COMPRESSOR TYPE Hermetic type, 4 poles, DC motor, Twin Rotary
DISCRIMINATION
WEIGHT (with oil)
DA130AIF-25NA
9.6 kg
STANDARD REFRIGERANT
REFRIGERANT TYPE R410A R410A R410A
1,150 g
DIMENSIONS Indoor unit
H x W x D Outdoor unit
WEIGHT Indoor unit
Gross / Net Outdoor unit
COMPRESSOR AND REFRIGERANT
MEASUREMENT
Pipe Length 15 m 1,150 g
FULL CHARGE 20 m 1,250 g
25 m 1,350 g
MAXIMUM PIPE HEIGHT 15 m
ADDITIONAL CHARGE 20 g/m
NOISE LEVEL
High speed 32 dB
INDOOR UNIT
Med speed 30 dB
Low speed
Quiet
Cooling
Heating
28 dB
26 dB
47 dB
48 dB
ARHF14LALU
AOHA14LA_L
1,250 g
217 x 953 x 595 mm
578 x 790 x 300 mm
27 kg / 23 kg
44 kg / 40 kg
1,250 g
1,350 g
1,450 g
15 m
20 g/m
33 dB
31 dB
29 dB
27 dB
49 dB
49 dB
ARHF18LALU
AOHA18LA_L
1,250 g
1,250 g
1,350 g
1,450 g
15 m
20 g/m
33 dB
31 dB
29 dB
27 dB
50 dB
50 dB
OUTDOOR UNIT
Note : Static pressure : 0Pa
Duct length : Inlet 1m, Outlet 2m (indoor uit)
When you dismantle indoor units which are installed,
take care not to make parts fall down, especially motors.

DIMENSIONS
Unit : mm
Drain pipe diameters
Inside : 21.5 mm
Outside : 26.0 mm
INDOOR UNIT
886
850
953
920
600
390
150
217
605
57520
2008.05.02 3

OUTDOOR UNIT
Unit : mm
Top view
Front view
Side view
Bottom view
Drain pipe
mounting place
( 20)
189
177
347
540
30066790
121
578
320 10
184
4- 10mm hole
Air flow
2007.08.31 4

REFRIGERANT SYSTEM DIAGRAM
OUTDOOR UNIT INDOOR UNIT
2008.07.31 5
StrainerStrainer
4-Way
valve
2-Way
valve
3-Way
valve
Muffler
Muffler
Expansion
valve
Compressor
Accumulator
Heat exchanger
Heat exchanger
Cool
<Refrigerant direction>
Heat
: THERMISTOR (COMPRESSOR)
: THERMISTOR (PIPE)
: THERMISTOR (ROOM)
: THERMISTOR (DISCHARGE)
: THERMISTOR (HEAT EXCHANGER MED)
: THERMISTOR (HEAT EXCHANGER OUT)
: THERMISTOR (OUTDOOR AIR)
<Refrigerant pipe diameter>
ARHF12LALU / AOHA12LA_L
Liquid : 1/4" (6.35 mm)
Gas : 3/8" (9.52 mm)
ARHF14LALU / AOHA14LA_L
ARHF18LALU / AOHA18LA_L
Liquid : 1/4" (6.35 mm)
Gas : 1/2" (12.70 mm)

BLACK
RED
WHITE
YELLOW
BLUE
RED
WHITE
BLACK
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
WHITE
WHITE
RED
BROWN
BROWN
BROWN
BROWN
BLACK
BLACK
WHITE
RED
YELLOW YELLOW
GREEN
BLACK BLACK
BLACK
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
1
2
3
1
2
3
1
2
3
1
2
1
2
1
2
1
2
1
2
3
4
1
2
3
4
12
1
2
1
2
3
1
2
3
RED
WHITE
BLACK
CN71
CN73
CN72
CN70
W4
W2
W1
W3
W11
W10
CN40
CN801
W7
W8
W9
CN30 4-WAY VALVE
4WV
PMV
F M
S (S)
C (T)
R (R)
FAN MOTOR
EXPANSION VALVE
COMPRESSOR
C M
REACTOR
THERMISTOR ( PIPE TEMPE. )
THERMISTOR ( DISCHARGE PIPE TEMP. )
THERMISTOR ( COMPRESSOR TEMP. )
THERMISTOR ( PIPE - MID. TEMP. )
THERMISTOR ( OUTDOOR TEMP. )
FUSE 250V 5A
TERMINAL
POWER SOURCE
2
( N )
1 3 L N
FUSE 250V 20A
CONTROLLER PCB ASSY
( MAIN PCB )
2008.07.31 6
INDOOR UNIT OUTDOOR UNIT
CIRCUIT DIAGRAM
GRAY
GRAY
BLACK
BLACK
WHITE
BLACK
RED
WHITE
BLACK
RED
GRAY GRAY GRAY GRAY GRAY GRAY GRAY
GRAY
GRAY GRAY GRAY
GREEN GREEN
GREEN / YELLOW
YELLOW
BROWN
WHITE
BLACK
RED
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
1
2
3
1
2
1
2
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8 8
1
2
3
4
5
1
2
3
4
5
1
2
3
1
2
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 7 8
1 2 3
1 2 3
1 2 31 2
1 2 3
123
1 2 1 2
1 2 1 2 1 2
CN12
CN11
CN9
CN10
CN4 CN1
CN6
CN14
CN13
CN3
CN5 CN7 CN8
CN104 CN101
CN102 CN103
CN105
CN106
E101 E102
W105
W102
W101
TERMINAL
TERMINAL
TO REMOTE CONTROL UNIT
FAN MOTOR
F M
TERMISTOR
( PIPE TEMP. )
TERMISTOR
( ROOM TEMP. )
12 3
12 3
POWER SUPPLY
PCB ASSEMBLY
CONTROLLER
PCB ASSEMBLY
( MAIN PCB )

E102
E101
UL1015 AWG22 RED
UL1015 AWG22 BLACK
UL1015 AWG22 WHITE
UL1015 AWG22 YELLOW
UL1015 AWG22 BROWN
UL1015 AWG16
GREEN
UL1015 AWG16
GREEN
UL1015 AWG20 BLACK UL1015 AWG20 WHITE
UL1015 AWG20 RED
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG26 GRAY
UL1430 AWG22 WHITE
UL1430 AWG22 BLACK
UL1430 AWG22 RED
BLACK
BLACK
GRAY
GRAY
CN2-1
CN2-2
CN2-3
CN2-4
CN2-5
CN3-1
CN3-2
CN3-3
CN3-4
CN3-5
CN3-6
CN4-1
CN4-2
CN4-3
CN4-4
CN4-5
CN4-6
CN4-7
CN4-8
CN1-1
CN1-2
CN1-3
CN102-1
CN102-2
CN102-3
CN103-1
CN103-2
CN106-1
CN106-2
CN105-6
CN105-5
CN105-4
CN105-3
CN105-2
CN105-1
CN104-1
CN104-2
CN104-3
CN104-4
CN104-5
CN104-6
CN104-7
CN104-8
CN101-1
CN101-2
CN101-3
CN11-1
CN11-2
CN11-3
CN11-4
CN11-5
CN12-1
CN12-2
CN12-3
CN12-4
CN12-5
CN9-1
CN9-2
CN9-3
CN14-1
CN14-2
CN14-3
CN13-1
CN13-2
CN13-3
CN13-4
CN13-5
CN13-6
CN5-1
CN5-2
CN13-7
CN7-1
CN7-2
CN8-1
CN8-2
CN6-1
CN6-2
CN10-1
CN10-2
THERMISTOR
( ROOM TEMP. )
THERMISTOR
( PIPE MID. TEMP. )
REMOTE CONTROL UNIT
TERMINAL BOARD 3 2 1
EARTH WIRE
W105W102
W101
3
2(N)
1
TERMINAL BOARD
OUTDOOR UNIT
F M
DC FAN MOTOR
E I B I N
E I B OUT
DRAIN PUMP
FLOAT SWITCH
HEATER
FRESH AIR
DC SUPPLY
POWER DRIVE
EMI FILTER
ZCAT1518-0730
2 T
CN1
B03B-PASK-1
WHITE
CN4
B08B-PASK-1
WHITE
CN3
B06B-PASK-1
WHITE
CN2
B5P-SHF-1AA
WHITE
CN106
B2P3-VH-B-E
BLUE
CN103
B2B-XH-AM
WHITE
CN105
B5P6-VH-B
WHITE
CN102
B3B-XH-AM
WHITE
CN104
B08B-PASK-1
WHITE
CN101
B03B-PASK-1
WHITE
CN13
B07B-PASK-1
WHITE
CN14
B03B-XAKK-1
BLACK
CN6
B02B-PAMK-1
GREEN
CN10
B02B-PAOK-1
ORANGE
CN11
B05B-XASK-1
WHITE
CN12
B05B-XARK-1-A
RED
CN9
B03B-XARK-1-A
RED
CN8
B02B-XASK-1-A
WHITE
CN7
B02B-XAYK-1-A
YELLOW
CN5
B02B-XAKK-1-A
BLACK
CONTROLLER PCB ASSEMBLY
( MAIN PCB )
ARHF12LALU : K06AK-070CHSE-C1
ARHF14LALU : K06AK-070DHSE-C1
ARHF18LALU : K06AK-070EHSE-C1
POWER SUPPLY PCB ASSEMBLY
K06AL-0602HSE-P0
2008.07.31 7
CONTROL UNIT
ARHF12LALU : EZ-0070SHSE
ARHF14LALU : EZ-0070THSE
ARHF18LALU : EZ-0070WHSE
INDOOR PCB CIRCUIT DIAGRAM
EMI FILTER
ZCAT1518-0730
1 T
1
2
3
4
5
6
7
8
CN15-1
CN15-2
CN15-3
CN15-4
CN15-5
CN15-6
CN15
B06B-XASK-1-A
WHITE
FLASH
SP PCB
TEST
LOUVER ( RIGHT / LEFT )
LOUVER ( UP / DOWN )

I C1
uPD78F0535
34
39
36
43
44
45
46
33
32
31
30
29
28
27
26
18
19
20
21
22
23
11
12
13
14
38
37
41
40
25
9
42 52
51
50
49
48
47
56
55
54
53
8
7
6
5
4
3
2
1
64
63
62
61
60
59
58
57
17
16
15
24
10
35
AVDD
AVREF
VDD0
VDD1
I C
RST
P00 P34
P01 P35
P02
P03
P10
P11
P12
P13
P14
P15
P16
P17
P20
P21
P22
P23
P24
P25
P30
P31
P32
P33
XT1
XT2
X1
X2
P36
P40
P41
P42
P43
P44
P45
P46
P47
P50
P51
P52
P53
P54
P55
P56
P57
P64
P65
P66
P67
P70
P71
P72
P73
P74
P75
AGND
GND0
GND1
JM6
0R0
JM5
0R0
R56
100K
<1/10W>
5V
C27
0.1
<F>
C38
0.1 <F>
I C7
S80842
NC
2
1
3
4
VDD
OUT GND
NC 5V
R41 1.0K
<1/10W>
R43
10K
<1/10W>
5V
R44
10K
<1/10W>
C26
0.01
<F>
C25
10/
50V
+
R52
10K
<1/10W> INDICATOR
CN13
B07B-PASK-1
FLASH
CN15
B06B-XASK-1-A
5V
5V
R49 - R51
10K <1/10W> x 3
PIPE TEMP. TH. ( MID )
CN5
B02B-XAKK-1-A
PIPE TEMP. TH. ( ENT )
CN7
B02B-XAYK-1-A
ROOM TEMP. TH.
CN8
B02B-XASK-1-A
5V
R59
10K
<1/10W>
R60
49.9K
<1/10W>
R61
49.9K
<1/10W>
C29
0.1
<F>
C30
0.1
<F>
C34
0.1
<F>
R57
1.0K
<1/10W>
R58
1.0K
<1/10W>
R62
1.0K
<1/10W>
5V
FLOAT SWITCH
CN9
B03B-XARK-1-A
R46
1.0K
<1/10W>
C31
0.01
<F>
R45
10K
<1/10W>
C8 - C10
0.1 <F> x 3
R4 - R6
1.0K <1/10W> x 3
R1 - R3
10K <1/10W> x 3
5V
JM1
JM2
JM3
5V
C28
0.1
<F>
C33
0.1
<F>
C32
100/
6.3V
+
CUSTOM CODE
CUSTOM CODE
HEATING FAN DELAY
12V
+C2
10/
50V
C3
0.01
<F>
5V
D4
1SS355
I C8
NJM7812
D1
1SS355
I C2
NJM7805
13.5V
5V C1
10/
50V
+
IO
G
IO
G
1 3
2
2
3
1
R19
R20
R22
R21
1.0K <1/10W> x 4
R15 - R18
10K <1/10W> x 4
5V
5V
C4 - C7
0.01 <F> x 4
Q3
DTC124EKA
R70
10K
<1/10W>
1
2
3
C37
0.1
<F>
1000P <R> x 3
C35 C12 C11
R67 1.0K
<1/10W>
5V
1.0K <1/10W> X 3R63
R64
R65
10K <1/10W> x 3
R66
R32
R23
R24
13.5V
R26
10K
<1/10W> R25
1.0K
<1/10W>
5V
C14
1000P
<R>
C16
0.01
<F>
R29
390
<1/10W>
R28
10K
<1/10W>
3
2
1
Q1
DTC124EKA
C15
0.01
<F>
5V
5V
C17
0.01
<F>
C18
0.01
<B>
R27
330
<1/10W>
R31
10K
<1/10W>
R34
1.0K
<1/10W>
R30
10K
<1/10W>
R33
10K
<1/10W>
Q2
DTC124EKA
BZ1
PKM13EPYH-4000-A0
R36
0R0
R35
1.0K
<1/10W>
13.5V
R47
390
<1/10W>
B Z
1
2
3
1
2
3
4
5
6
7
8
9
16
15
14
13
12
11
10
1
2
3
4
5
6
7
I
I
I
I
I
I
I
SK
O1
O2
O3
O4
O5
O6
O7
GND
I C4
uLN2003ADR
13.5V
13.5V
13.5V
C36
0.47
<F>
5V
X1
5.00MHz
<CSTS>
3
1
2
13.5V I C3
uLN2003ADR
SW1
CFS-0402MC
R11 - R14
10K <1/10W> x 4
R7 - R10
1.0K <1/10W> x 4
C19 - C22
0.1 <F> x 4
5V
C13
0.1
<F>
R37
10K
<1/10W>
R40
10K
<1/10W>
I C5
BR93L56RF-WE2
1
2
3
6
8
4
7
5
CS
SK
D I
NC
VCC
DO
NC
GND
8
7
6
5
4
3
2
1
9
16
15
14
13
12
11
10
8
1
2
3
4
5
6
7
SK
O1
O2
O3
O4
O5
O6
O7
GND
I 1
I 2
I 3
I 4
I 5
I 6
I 7
5V
R55
10K
<1/10W>
12V
12V
D3
D1FS4A
12V
R48
10K
<1/10W>
R53
28K
<1/10W>
R54
15.4K
<1/10W>
I C6-1
BA10393F
I C6-2
BA10393F
-
-
+
+
1
7
3
2
5
6
D2
DAN217U
3
1 2
C23
0.01
<F> C24
1000P
<R>
R42
47
<1/10W>
CN14
B03B-XAKK-1-A
REMOTE CONTROL UNIT
CN11
B05B-XASK-1-A
LOUVER ( UP / DOWN )
CN12
B05B-XARK-1-A
LOUVER ( RHIGT / LEFT )
CN10
B02B-PAOK-1
HEATER
CN6
B02B-PAMK-1
FRESH AIR
CN4
B08B-PASK-1
POWER DRIVE
CN3
B06B-PASK-1
SP PCB
CN2
B5P-SHF-1AA
TEST
CN1
B03B-PASK-1
DC SUPLLY
1
2
3
4
5
6
1
2
3
4
5
1
2
3
1
2
3
4
5
6
7
8
1
2
1
2
1
2
3
4
5
1
2
3
4
5
1
2
3
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
1
2
1
2
1
2
3
2008.07.31 8
INDOOR UNIT
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
ARHF12LALU : K06AK-070CHSE-C1
ARHF14LALU : K06AK-070DHSE-C1
ARHF18LALU : K06AK-070EHSE-C1

13.5V
F101
FSL 250 3.15
<EM>
FH101
FH102
VA101
470V
<TNR>
W101
BLACK
W102
WHITE
VA102
470V
<TNR>
SA101
RA-362M
E101
GREEN
I C26-10
N
L
I C26-14
5V 15V
I C104
TLP621
<GB>
R116
1.0K
<1/4W>
1
2
4
3
CN104
B08B-PASK-1
POWER DRIVE
SERIAL I N
SERIAL I NT
SERIAL ON
DRAIN PUMP
DC FAN-OUT
DC FAN-FEEDBACK
EX. SIGNAL-OUT
EX. SIGNAL-I N
1
2
3
4
5
6
7
8
4
3 2
1
I C103
TLP621
<GB>
C117
100/
25V
+
AA
R117
820
<1/4W>
R114
4.7K
<1/10W>
R115
6.8K
<1/4W>
15V
6
5
4
3
2
1
340V
A
15V
CN105
B5P6-VH-B
DC FAN MOTOR
W105
RED
SERIAL
I C 1 0 5
H I 2 0 0 2 R 2
LN
5V
5 4 3 2 1 101418
15V
340V
C108
4700P
<ECQP>
R104
330K
<2W> D102
1SR139-600
R103
62K
<RS-2W>
D108
D2FL20U
T101
ZFT22B03-C
R111
10K
<1/10W>
+
C113
1000/
25V
C114
0.01
<KH>
C115
0.01
<KH>
8
7
6
5
3
2
10
12
L
N
K102
G5NB-1A 13.5V
RC101
120/0.2
CN106
B2P3-VH-B-E
DRAIN PUMP
2
1
IC26-10
IC26-14
1
3
4
2
2
1
3
2
1
C116
0.01
<B>
5V
R112
330
<1/10W>
L102
BLm18
<AG601>
I C101
TLP621
<GB>
L103
BLm18
<AG601>
4
3
1
2
4
23
1
K101
G5NB-1A 13.5V
R113
330
<1/10W>
CN103
B2B-XH-AM
CN102
B3B-XH-AM
IC26-14 IC26-10
8765 4 3 2 1
13.5V
C120
0.1
<F>
C121
0.1
<F>
5V
DC SUPPLY
CN101
B03B-PASK-1
1
2
3
43
12
LF101
ELF17N015A
L101
REP28-15
15mH, 1.1A
1
3
4
2
D101
D3SB60
C118
0.01
<KH>
E102
GREEN
C107
100/
450V
+
C109
220P/
2.0kV
<ECKE>
R105
75
<RS-2W>
R106
1.5
<RS-2W>
Q102
2SC1815
Q101
2SC5354
R107
100
<1/10W>
3
3
2
2
1
1
A
D107
RD16M
<B1>
C112
330/
25V
+
R110
10K
<1/10W>
D106
D1FL20U
C110 0.047 <ECQB>
D103
D1FL20U
D104
MTZJ5.1B
R109
330
<1/4W>
C111
100/
25V
+
D105
D1FL20U
R108
100
<1/2W>
C104
0.47
<R46>
C105
0.01
<YE>
C106
0.01
<YE>
PFC5000-0702F
x 2
2008.04.14 9
INDOOR UNIT
POWER SUPPLY PCB ASSEMBLY
K06AL-0602HSE-P0