Fujitsu ASU18RLB User manual

SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED TYPE
CONTENTS
SPECIFICATIONS. . . . . . . . . . . . . . . . . . .
1
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . 2
REFRIGERANT SYSTEM DIAGRAM. . . .3
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . 4
ERROR DETECTION . . . . . . . . . . . . . . . .
5
INDOOR PCB CIRCUIT DIAGRAM . . . . .
6
OUTDOOR PCB CIRCUIT DIAGRAM . . .
7
PARTS (INDOOR UNIT). . . . . . . . . . . . . .8
PARTS (OUTDOOR UNIT) . . . . . . . . . . .13
16
ACCESSORIES . . . . . . . . . . . . . . . . . . .
Indoor unit Outdoor unit
ASU18RLB
ASU24RLB
AOU18RLB
AOU24RLB

SPECIFICATIONS
TYPE Cool & heat inverter
INDOOR UNIT ASU18RLB
OUTDOOR UNIT AOU18RLB
COOLING CAPACITY
HEATING CAPACITY
POWER SOURCE
FREQUENCY
RUNNING
CURRENT
MAXIMUM
CURRENT
INPUT WATTS
EER Cooling
COP Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
MOISTURE REMOVAL
AIR CIRCULATION
HIGH
FAN MOTOR
High
INDOOR UNIT
Cooling
Medium
Low
Quiet
High
INDOOR UNIT
Heating
Medium
Low
Quiet
OUTDOOR UNIT Heating
OUTDOOR UNIT Cooling
18,000 Btu/h
18,000 Btu/h
208/230 V
60 Hz
6.4 A
5.8 A
1.44 kW
1.285 kW
12.5 Btu/Wh
14.0 Btu/Wh
4.0 Pts/h 1.9 L/h
541 CFM 920 m3/h
541 CFM 920 m3/h
8.3 A
11.8 A
ASU24RLB
AOU24RLB
24,000 Btu/h
24,000 Btu/h
208/230 V
60 Hz
10.5 A
8.5 A
2.40 kW
1.925 kW
10.0 Btu/Wh
12.5 Btu/Wh
6.3 Pts/h 3.0 L/h
647 CFM 1,100 m3/h
659 CFM 1,120 m3/h
11.8 A
13.8 A
1,260 r.p.m.
1,020 r.p.m.
900 r.p.m.
770 r.p.m.
1,260 r.p.m.
1,020 r.p.m.
900 r.p.m.
790 r.p.m.
780 r.p.m.
870 r.p.m.
1,480 r.p.m.
1,220 r.p.m.
1,020 r.p.m.
900 r.p.m.
1,430 r.p.m.
1,220 r.p.m.
1,020 r.p.m.
900 r.p.m.
1,000 r.p.m.
1,050 r.p.m.
ELECTRICAL DATA
2014.12.24 1
High
Medium
Low
Quiet
INDOOR UNIT
Cooling
High
Medium
Low
Quiet
INDOOR UNIT
Heating
OUTDOOR UNIT Heating
NOISE LEVEL
OUTDOOR UNIT Cooling
42 dB
35 dB
31 dB
26 dB
43 dB
36 dB
33 dB
28 dB
50 dB
51 dB
47 dB
41 dB
35 dB
31 dB
47 dB
42 dB
36 dB
33 dB
55 dB
54 dB
COMPRESSOR TYPE Hermetic type, 4 pole, 3 phase,
DC inverter motor, Rotary
DISCRIMINATION
PRECHARGED REFRIGERANT
REFRIGERANT TYPE R410A
WEIGHT (with oil)
COMPRESSOR AND REFRIGERANT
Pipe length 49 ft. 15 m
FULL CHARGE 66 ft. 20 m
MAXIMUM PIPING HEIGHT 49 feet 15 m
ADDITIONAL CHARGE 0.22 oz/ft 20 g/m
808-213-80
21 lb. 6 oz. 9.7 kg
3 lb. 5 oz. 1,500 g
3 lb. 1 oz. 1,400 g
3 lb. 1 oz. 1,400 g
WEIGHT
INDOOR UNIT Net / Shipping
Net / ShippingOUTDOOR UNIT
INDOOR UNIT H x W x D
H x W x DOUTDOOR UNIT
86 lb. / 92 lb. 39 kg / 42 kg
DIMENSIONS
24-1/2 x 31-3/32 x 11-13/32 in.
620 x 790 x 290 mm
12-5/8 x 39-1/4 x 9 inch
320 x 998 x 228 mm
31 lbs / 40 lbs 14 kg / 18 kg

DIMENSIONS
Drain pipe diameter
Inside : 5/8 inch (16 mm)
Outside : 1-3/32 inch (28 mm)
Liquid pipe diameter : 1/4 inch (6.35 mm)
Gas pipe diameter : 1/2 inch (12.70 mm)
INDOOR UNIT
39-1/4 inch (998 mm)
9 inch
(228 mm)
12-5/8 inch
(320 mm)
2014.12.24 2
OUTDOOR UNIT
11-11/32 inch
(290 mm) 31-3/32 inch (790 mm)
21-1/4 inch (540 mm)
24-13/32 inch (620 mm)

REFRIGERANT
SYSTEM DIAGRAM
Refrigerant direction
Cooling
Heating
Refrigerant pipe diameter
Liquid : 1/4" (6.35 mm)
Gas : 1/2" (12.7 mm)
2-Way valve
Strainer
Receiver
Strainer
3-Way valve
Muffler
Muffler
4-Way valve
Expansion valve
Heat exchanger
(indoor unit)
Heat exchanger
(outdoor unit)
Compressor
2014.12.24 3

Black
Black
Black
Brown or Black
Black
Black
Brown or Black
Black
White
Yellow
Orange
Blue
Red
Brown
Yellow
White
Black
Red
Red
7
6
5
4
3
2
1
7
6
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
2
12 1
4
3
2
1
4
3
2
1
3
2
1
3
2
1
W4
CN800
CN700
CN500
CN61
CN62 Thermistor ( outdoor temp. )
Thermistor ( discharge temp. )
Thermistor ( pipe temp. )
4-way valve coil
Expansion valve coil
4WV
PMV
FM Fan motor
White White White White White White White White White White White White White White White Black
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 91 2 3 4 5
1 2 3 4 5
1 2
1 2
9 8 7 6 5 4 3 2 15 4 3 2 1
9 8 7 6 5 4 3 2 15 4 3 2 1
CN200CN40CN42
CN303 CN301W306
W307
Transistor
PCB
( I P M )
Black Black Black Black
1 2 3 4
1 2 3 4
1 2 3 4 5 6
1 2 3 4 5 6
CN400
CN11
Blue
Yellow
Black
Red
Violet
White
TM302
TM301
W17
W16
W8
W7
W13
W12
+I N
-I N
P
N
Capacitor PCB
Red
White
Black
Brown
Orange
TM102
TM101
TM303
W
TM304
V
TM305
U
S
C
R
CM Compressor
White White
L2 L1
Choke coil
Green
1 2
W29
W28
CN100 W21W9 W20 W19 W3
W18
W17
W2
W1
Power source
Terminal
12 3 L1L2
Filter PCB
Green
White
Black
White
Black
White White
Gray Black
White
Black
1 2
1 2 1 2
1 2
CN1 CN110
TM600
TM601
Fuse
25A
250V
G
G
ACTPM
Main PCB
7
6
5
4
3
2
1
7
6
5
4
3
2
1
7
6
5
4
3
2
1
5
4
3
2
1
3
2
1
3
2
1
2
1
2
1
2
1
3
2
1
5
4
3
2
1
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
5
43
2
1
1
2
3
4
5
6
1
2
3
4
5
6
CN13
CN16CN14
CN10
CN3CN1
CN8
CN6
CN5
CN11
CN2
TM1
TM4 TM2 W5
CN201
Blue
Yellow
White
Black
Red
Blue
Pink
Yellow
Orange
Red
Blue
Pink
Yellow
Orange
Red
Blue
Pink
Yellow
Orange
Red
Green
White
Red
Black
Black
Black
Black
White
White
White
White
White
White
Red
Black
White
Red
FM
Test
Fan motor
M Diffuser
M Louver
( Up / Down )
M Louver
( Right / Left )
G
12 3
Terminal
Ex. out
( Option )
Ex. in
( Option )
Thermistor ( Pipe temp. )
Thermistor ( Room temp. )
Wired remote control
( Option )
Indicator PCB
Thermal
fuse 102
Main PCB
CIRCUIT DIAGRAM
INDOOR UNIT OUTDOOR UNIT
2014.10.07 4

UL1061 AWG28 x 7
CN11-1 RED
CN11-2 WHITE
CN11-3 WHITE
CN11-4 WHITE
CN11-5 WHITE
CN11-6 WHITE
CN11-7 WHITE
UL1007 AWG26 x 2
CN2-1 BLACK
CN2-2 BLACK
CN3-1
CN3-2
RED
WHITE BLACK
BLACK
CN13-1
CN13-2
CN13-4
CN13-3
CN13-5
UL1061 AWG26 x 5
UL1061 AWG26 x 5
UL1061 AWG26 x 5
UL3266 AWG22 x 5
UL1061 AWG26 x 3
CN5-1 RED
CN5-2 ORANGE
CN5-3 YELLOW
CN5-4 PINK
CN5-5 BLUE
CN10-6 RED
CN8-1 RED
CN8-2 ORANGE
CN8-3 YELLOW
CN8-4 PINK
CN8-5 BLUE
CN10-4 BLACK
CN10-3 WHITE
CN10-2 YELLOW
CN10-1 BLUE
CN2-3 YELLOW
CN2-1 RED
CN2-2 ORANGE
CN2-4 PINK
CN2-5 BLUE
CN6-1 RED
CN6-2 WHITE
CN6-3 BLACK
UL1015 AWG24 BLACK
UL1015 AWG24 WHITE
UL1015 AWG24 RED
L
N
SERIAL
E
1
2
3
M
M
M
F M
DC FAN MOTOR
DIFFUSER
LOUVER ( UP / DOWN )
LOUVER ( RIGHT / LEFT )
THERMISTOR ( ROOM TEMP. )
THERMISTOR ( PIPE TEMP. )
XARR
-03VF
XAP
-03V-1
EX. OUT
EX. IN
CN201
07 JB20 / PAP 1061
WHITE
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
1
2
1
2
1
2
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
6
1
2
3
4
5
6
6
5
4
3
2
1
CN11
B07B-PASK-1
WHITE
CN14
B3B-XH-AM
WHITE
CN16
B2B-XH-AM
WHITE
CN3
JC25-02HG
WHITE
CN1
2P-SAN
WHITE
CN13
B5B-PH-K-S
WHITE
TEST
FLASH
CN9
B07B-PASK-1
WHITE
CN6
B05B-XASK-1-A
WHITE
CN2
SJH20-05WS
WHITE
CN5
SJH20-06WS
WHITE
CN8
B06B-PASK-1
WHITE
CN10
B5 ( 6-5 ) B-XARK-1-A
RED
TERMINAL
HP-T3064A-A29-L1
E
W5
GREEN
EARTH
TM2
22007
RED
SERIAL I N
TM1
22007
WHITE
N I N
TM4
22007
BLACK
L I N
F1
AC250V 3.15A
INDICATOR PCB
K05CY-0902HSE-D0
WIRED REMOTE CONTROL
( OPTION )
BRANCH BOX UNIT
POWER SOURCE
AC208 - 230V
60Hz
MAIN PCB
ASU18RLB : K09DR-1405HSE-C1
ASU24RLB : K09DR-1406HSE-C1
UL1015
AWG22
GREEN
EMI FILTER
ESD-R19
or
TRCB-19-10-10
4 TURNS
CONTROL UNIT
ASU18RLB : EZ-01402HSE
ASU24RLB : EZ-01403HSE
2014.10.10 5
6
5
4
3
2
1
Pin No. Terminal
code
Vm
GND
Vcc
Vsp
PG
Function of terminal
Revolution pulse output
Speed control voltage input
Control power voltage input
GND
Motor power voltage input
Lead wire
color
Red
Black
White
Yellow
Blue
0 20 30
Thermistor ( room temp. ) 33.6 k 12.5 k 8.0 k
3.0 V 4.0 V 4.3 V
0 20 30
Thermistor ( Pipe temp. ) 176.0 k 62.9 k 39.6 k
1.1 V 2.2 V 2.8 V
CN3 Thermistor Characteristics.
CN1 Thermistor Characteristics.
Thermistor ( EP6H503AR-09S004 )
Thermistor ( 150-103-86172 )
CN10 DC FAN MOTOR ( MFD-50ROM )
DC 15V
DC 5V
DC 5V
DC 5V
DC340V
DC12V
DC12V
DC12V
DC12V
INDOOR PCB CIRCUIT DIAGRAM

UL1015
AWG20
BLACK
UL1015
AWG20
WHITE
UL1015
AWG20
RED
UL1015
AWG14
BLACK
UL1015
AWG14
WHITE
L2
L1
3
2
1
UL1015
AWG14
BLACK
UL1015
AWG22
GREEN
UL1015
AWG16
GREEN
F200
25A
250V
F100
10A
250V
W18
B
W17
B
W1
B
W2
B
W3
B
W19
B
W20
B
W9
B
W21
BCN100
CT I N / OUT
CHOKE COIL
L=0.32mH 30A
EMI FILTER
ZCAT1518-0730
1 TURN
L1 L2
P
N
+
-
W4
B
SERIAL
RED
CN800
B5 ( 7-2.3 ) B-XASK-1-A
WHITE
CN700
B05B-PL I SK-1
WHITE
CN500
2-1747052-3
BLUE
CN61
1971032-4
WHITE
CN62
1971032-3
WHITE
UL1015
AWG14
WHITE
UL1015
AWG14
VIOLET
W13
B
W12
B
UL1015
AWG14
YELLOW
UL1015
AWG14
BLUE
B
B
W28
B
W29
B
UL1015
AWG14
BROWN
UL1015
AWG14
ORANGE
UL1015
AWG14
RED
UL1015
AWG14
BLACK
2
3
1
4
+
-
TM102
TM101
W16
B
W17
B
TM301
TM302
W307
B
W306
B
TM305
U
TM304
V
TM303
W
UL1015
AWG14
BLACK
UL1015
AWG14
WHITE
UL1015
AWG14
RED
COMPRESSOR
C M
D100
D25XB60
I P M CONTROL
CN301
1971032-9
WHITE
PEAK LOAD CURRENT
CN303
1971032-5
WHITE
CN40
B09B-PLISK-1
WHITE
I P M CONTROL
CN42
B05B-PLIRK-1
RED
PEAK LOAD CURRENT
CN200
1-1747052-2
RED
DC VOLT I N
CN400
1-1971032-4
RED
ACTPM CONTROL
CN1
1871843-2
WHITE
POWER RELAY CONTROL
CN110
3-1747052-4
YELLOW
AC VOLT I N
TM601
86026
TM600
86026
CT I N / OUT
123456789 12345
987654321 54321
2 1
432 1
654321
212 1
1
2
3
4
5
6
7
1
2
3
4
5
1
2
1
2
3
4
1
2
3
RED
BLACK
WHITE
YELLOW
BROWN
RED
BLUE
ORANGE
YELLOW
WHITE
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE UL1007 AWG24 WHITE UL1007 AWG24 WHITE
UL1007 AWG24 WHITE UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1015 AWG20 WHITE
UL1015 AWG20 BLACK
UL1007 AWG24 x 4
UL1007 AWG24 WHITE
UL1015 AWG20 BLACK
UL1007 AWG24 WHITE
UL1015 AWG14 BLACK
UL1015 AWG14 GRAY
UL1007 AWG24 WHITE
2 1
FRAME
DC FAN MOTOR
EXPANSION VALVE COIL
4-WAY VALVE COIL
*DC Resistance
2085
THERMISTOR ( PIPE TEMP. )
THERMISTOR ( DISCHARGE TEMP. )
THERMISTOR ( OUTDOOR TEMP. )
M
F M
EARTH
AC208 - 230V
60Hz
I NDOOR UNIT
EMI FILTER
ZCAT2132-1130
1 TURN
EMI FILTER
TRCB-25-15-12
8 TURNS
EMI FILTER
ZCAT1518-0730
1 TURN
CAPACITOR PCB
K05DG-0700HUD-P0
ACTPM
I C404
PM-601BSG
FILTER PCB
K05CW-1101HUE-FL0
TRANSISTOR PCB
( I P M )
K10AY-100AHUE-TR0
MAIN PCB
AOU18RLB : K07BS-1402HUE-C1
AOU24RLB : K07BS-1403HUE-C1
INVERTER ASSEMBLY
AOU18RLB : EZ-014LHUE
AOU24RLB : EZ-014MHUE
2014.10.14 6
BROWN RED ORANGE YELLOW
EMI FILTER
ZCAT1518-0730
1 TURN
OUTDOOR PCB CIRCUIT DIAGRAM
DC340V
DC15V
DC12V
DC18V DC15V
AC208 - 230V
DC12V
TERMINAL
HP-T3036-9-L6S
(20 68 )
10% °
F
U-V
V-W
U-W
Winding Resistance
0.704 (20 68 )
°
F
CN800 DC FAN MOTOR
1
3
4
5
6
Pin No. Terminal
code
Vm
GND
Vcc
Vsp
FG
Function of terminal
Revolution pulse output
Speed control voltage input
Control power voltage input
GND
Motor power voltage input
Lead wire
color
Red
Black
White
Yellow
Brown
2
7
1(Red) - 2(Blue)
1(Red) - 3(Orange)
1(Red) - 4(Yellow)
1(Red) - 5(White)
CN700 EXPANSION VALVE COIL
46.0
Recommended Drive Condition
Unipolar Drive, 1-2 Phase Excitation.
Coil resistance
(20 68 )
°
F
CN62
Thermistor Characteristics.
Thermistor
Thermistor ( Outdoor temp. ) 35.2 k 12.6 k 8.0 k
2.6 V 3.8 V 4.1 V
CN61
Thermistor Characteristics.
Thermistor
Thermistor ( Pipe temp. ) 16.1 k 6.0 k 3.8 k
1.1 V 2.2 V 2.8 V
Thermistor ( Discharge temp. ) 168.6 k 62.6 k 40.0 k
0.4 V 0.9 V 1.2 V
DC15V
(20 68 )
°
F(30 86 )
°
F
( 0 32 )
°
F
(20 68 )
°
F(30 86 )
°
F
( 0 32 )
°
F

If you use a wireless remote control, the lamp
on the photo detector unit will output error codes
by way of blinking patterns.
If you use a wired remote control, error
codes will appear on the remote control display.
See the lamp blinking patterns and error codes
in the table. An error display is displayed only
during operation.
Indoor unit lamps Wired
remote
control
INDOOR UNIT
and WIRED REMOTE CONTROL
ERROR DETECTION
Description
OPERATION
(green)
TIMER
(orange)
ECONOMY
(green)
(1) (1) Serial communication error
(1) (2) Wired remote control
communication error
(1) (5) Check run unfinished
(2) (1)
Unit number or Refrigerant circuit
address setting error
[Simultaneous Multi]
(2) (2) Indoor unit capacity error
(2) (3) Combination error
(2) (4)
Connection unit number•
error (indoor secondary unit)
[Simultaneous Multi]
Connection unit number error•
(indoor unit or branch unit)
[Flexible Multi]
(2) (7) Primary unit, secondary unit set-up
error [Simultaneous Multi]
(3) (2) Indoor unit PCB model
information error
(3) (5) Manual auto switch error
(4) (1) Inlet air temp. sensor error
(4) (2) Indoor unit Heat Ex. Middle
temp. sensor error
(5) (1) Indoor unit fan motor error
(5) (3) Drain pump error
(5) (7) Damper error
(5) (15) Indoor unit error
(6) (2)
Outdoor unit main PCB model
information error or
communication error
(6) (3) Inverter error
(6) (4) Active filter error, PFC circuit error
(6) (5) Trip terminal L error
: 0.5s on / 0.5s off
: 0.1s on / 0.1s off
( ) : Number of flashing
Troubleshooting with the wired remote control.
If an error occurs, the following display will be shown.
(“Er” will appear in the set room temperature display.)
Error code
EX. Self-diagnosis
2014.12.22 7
Indoor unit lamps Wired
remote
control
Description
OPERATION
(green)
TIMER
(orange)
ECONOMY
(green)
(6) (10) Display PCB microcomputers
communication error
(7) (1) Discharge temp. sensor error
(7) (2) Compressor temp. sensor error
(7) (3) Outdoor unit Heat Ex. liquid
temp. sensor error
(7) (4) Outdoor temp. sensor error
(7) (5) Suction Gas temp. sensor error
(7) (6) 2-way valve temp. sensor error•
3-way valve temp. sensor error•
(7) (7) Heat sink temp. sensor error
(8) (2)
Sub-cool Heat Ex. gas inlet•
temp. sensor error
Sub-cool Heat Ex. gas outlet•
temp. sensor error
(8) (3) Liquid pipe temp. sensor error
(8) (4) Current sensor error
(8) (6)
Discharge pressure sensor•
error
Suction pressure sensor error•
High pressure switch error•
(9) (4) Trip detection
(9) (5) Compressor rotor position
detection error (permanent stop)
(9) (7) Outdoor unit fan motor error
(9) (9) 4-way valve error
(10) (1) Discharge temp. error
(10) (3) Compressor temp. error
(10) (4) High pressure error
(10) (5) Low pressure error
(13) (2) Branch boxes error
[Flexible Multi]

INDOOR UNIT
PARTS
8
2014.10.29
5 Front Panel
Room Thermistor Holder 12
Air Filter7
Intake Grille Assy
Parts numberDescriptionRef
9314991080
9315252012
Screw Cap11 9309002074
Wire Clamper10 9315015013
9315014023
6
Grille Clamper9
8 Receiver Window
Bracket Panel
9315336163
9306755010
9315010018
9315023018
1 Remote Control 9379219013
2
3
Air Clean Filter Assy 93152120164
Remote Control Holder 9305642045
10
8
5
7
9
9
12
6
3
11
1
2
4

21 Control Box Cover
Fan Motor Assy
9314997020
28 9602784004
Control Box 931499602322
Motor Clamper 931501201227
Display Case 931499902425
23 Main PCB (ASU18) 9708540382
23 Main PCB (ASU24) 9708540399
Terminal
Terminal
earth
990044701424
Indicator PCB 970721005726
92014.10.29
INDOOR UNIT
Parts numberDescriptionRef
23
27
22
28
26
21
24
25
29 Crossflow Fan Assy
30 Bearing C Assy
9315024015
9306628017
30
29