Fujitsu AB*14LBAJ Original operating manual

SPLIT TYPE
ROOM AIR CONDITIONER
Models Indoor unit Outdoor unit
AO*A18LAT3
AO*A24LAT3
INVERTER MULTI
SERVICE
INSTRUCTION
R410A
Universal Floor / Ceiling
Duct / Cassette
Wall Mounted / Floor type
AB*14LBAJ
AB*18LBAJ
AB*F14LAT
AB*F18LAT
AR* 9LUAB
AR*12LUAD
AR*14LUAD
AR*18LUAD
AR*F09LALU
AR*F12LALU
AR*F14LALU
AR*F18LALU
AU*12LBAB
AU*14LBAB
AU*18LBAB
AU*F09LAL
AU*F12LAL
AU*F14LAL
AU*F18LAL
AS* 7LMACW
AS* 9LMACW
AS*12LMACW
AS*A07LACM
AS*A09LACM
AS*A12LACM
AS*A14LACM
AS*A18LACM
AG*F09LAC
AG*F12LAC
AG*F14LAC

CONTENTS
1. DESCRIPTION OF EACH CONTROL OPERATION
1. CAPACITY CONTROL................................................................................................
3. INDOOR FAN CONTROL...........................................................................................
2. AUTO CHANGEOVER OPERATION..........................................................................
5. LOUVER CONTROL...................................................................................................
4. OUTDOOR FAN CONTROL.......................................................................................
7. TIMER OPERATION CONTROL................................................................................
6. COMPRESSOR CONTROL........................................................................................
9. TEST OPERATION CONTROL..................................................................................
8. ELECTRONIC EXPANSION VALVE CONTROL........................................................
11. 4-WAY VALVE EXTENSION SELECT.......................................................................
10. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST )................................
13. MANUAL AUTO OPERATION...................................................................................
12. AUTO RESTART........................................................................................................
15. FRESH AIR CONTROL..............................................................................................
14. COMPRESSOR PREHEATING..................................................................................
18. DEFROST OPERATION CONTROL..........................................................................
16. EXTERNAL ELECTRICAL HEATER CONTROL........................................................
19. DRAIN PUMP OPERATION.......................................................................................
21. VARIOUS PROTECTIONS.........................................................................................
20. ENERGY SAVE FUNCTION.......................................................................................
01-01
01-01
01-02
01-10
01-11
01-18
01-19
01-23
01-23
01-23
01-23
01-24
01-24
01-24
01-25
01-25
17. COIL DRY OPERATION CONTROL.......................................................................... 01-25
01-27
01-27
01-28
01-24
2-1-2 OUTDOOR UNIT DISPLAY................................................................................
2-1-1 INDOOR UNIT DISPLAY....................................................................................
2-1 ERROR DISPLAY......................................................................................................
2. TROUBLE SHOOTING
2-2 TROUBLE SHOOTING WITH ERROR CODE..........................................................
2-3 TROUBLE SHOOTING WITH NO ERROR CODE....................................................
2-4 SERVICE PARTS INFORMATION............................................................................
02-01
02-01
02-06
2-1-3 WIRED REMOTE CONTROLLER DISPLAY...................................................... 02-07
02-48
02-11
02-53
3. REPLACEMENT PARTS

1 . DESCRIPTION OF EACH
CONTROL OPERATION
R410A
INVERTER (MULTI )
Universal Floor / Ceiling
Duct / Cassette
Wall Mounted / Floor type

2. AUTO CHANGEOVER OPERATION
01-01
1. CAPACITY CONTROL
1-1 COOLING, HEATING, DRY CAPACITY CONTROL
Compressor frequency decides by capacity of an indoor unit, operation number of an indoor unit,
set temperature, room temperature and outside temperature.
When the air conditioner is set to the AUTO mode by remote control, operation starts in the optimum
mode from among the HEATING, COOLING and MONITORING modes. During operation, the
optimum mode is automatically swiched in accordance with temperature changes. The temperature
can be set between 18°C and 30°C in 1 degC steps.
When operation starts, only the indoor fan is operated for 1 minute. (Air flow mode: S- Lo)
After 1 minute, depends on the room temperature and outdoor unit's operarion mode,
the operation mode is selected in accordance with the table below.
( Table 1 : Operation mode selection table )
1
Room temperature :TR Operation mode
TR > Ts +2 degC
Ts +2 degC > TR
=
=
Ts +2 degC > TR > Ts-2 degC
Cooling
Monitoring
Heating
Ts : Setting temperature
TR: Room temperature
When COOLING was selected at , the same operation as COOLING OPERATION is performed.
When HEATING was selected at , the same operation as HEATING OPERATION is performed.
When the compressor was stopped for 6 consecutive minutes by the temperature control function
after the COOLING or HEATING operation mode was selected at above, operation is switched
to MONITORING and the operation mode is selected again.
1
2
31
4
1

3. INDOOR FAN CONTROL
1. Fan speed
( Table 2 : Indoor Fan Speed )
01-02
Operation mode Air flow mode Speed (rpm)
Hi 850
760
670
Me
Lo
Cooling
S-Lo
Heating
AB*14LBAJ
Operation mode Air flow mode Speed (rpm)
Hi 1030
890
770
250 250
Me
Lo
Cooling
S-Lo
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
AB*18LBAJ
Operation mode Air flow mode Speed (rpm)
Hi 955
870
800
650
Me
Lo
S-Lo
Operation mode Air flow mode Speed (rpm)
Hi 750
680
610
550
Me
Lo
S-Lo
Operation mode Air flow mode Speed (rpm)
Hi 1000
860
720
570
Me
Lo
S-Lo
Operation mode Air flow mode Speed (rpm)
Hi 1040
890
750
595
Me
Lo
S-Lo
AR*9LUAB
AR*14LUAD
AR*12LUAD
AR*18LUAD
Cooling
Heating
Cooling
Heating
Operation mode Air flow mode Speed (rpm)
Hi 850
800
740
670
300
Me
Lo
Quiet
S-Lo
Operation mode Air flow mode Speed (rpm)
Hi 1040
950
800
740
300
Me
Lo
Quiet
S-Lo
AB*F14LAT AB*F18LAT
Cooling
Heating
Cooling
Heating
Cooling
Heating
Operation mode Air flow mode Speed (rpm)
Hi 1010
950
880
830
450
Me
Lo
Quiet
S-Lo
Operation mode Air flow mode Speed (rpm)
Hi 790
720
620
570
330
Me
Lo
Quiet
S-Lo
Operation mode Air flow mode Speed (rpm)
Hi 990
880
770
620
330
Me
Lo
Quiet
S-Lo
AR*F09LALU
AR*F14LALU
Cooling
Heating
Operation mode Air flow mode Speed (rpm)
Hi 1040
950
840
700
450
Me
Lo
Quiet
S-Lo
AR*F18LALU
AR*F12LALU

01-03
Cooling
Heating
Cooling
Heating
AU*12/ 14LBAB
--- ---
AU*18LBAB
AU*F09LAL AU*F12LAL
Operation mode Air flow mode Speed (rpm)
Hi 730
670
590
Me
Lo
S-Lo
Operation mode Air flow mode Speed (rpm)
Hi 800
700
600
Me
Lo
S-Lo
Operation mode Air flow mode Speed (rpm)
Hi 660
580
520
460
Me
Lo
Dry
Monitoring
Quiet
Hi
Me
Lo
Quiet
650
580
Me+ 620
520
460
460
300
Auto
S- Lo
Cooling
Fan
Heating
Operation mode Air flow mode Speed (rpm)
Hi 590
540
490
440
Me
Lo
Dry
Monitoring
Quiet
Hi
Me
Lo
Quiet
590
540
Me+ 570
490
440
460
300
Auto
S- Lo
Cooling
Fan
Heating
Operation mode Air flow mode Speed (rpm)
Hi 730
630
540
460
Me
Lo
Dry
Monitoring
Quiet
Hi
Me
Lo
Quiet
740
670
Me+ 700
600
480
460
300
Auto
S- Lo
Cooling
Fan
Heating
AU*F14LAL
Operation mode Air flow mode Speed (rpm)
Hi 790
660
570
460
Me
Lo
Dry
Monitoring
Quiet
Hi
Me
Lo
Quiet
840
750
Me+ 800
650
500
460
300
Auto
S- Lo
Cooling
Fan
Heating
AU*F18LAL

01-04
Operation mode Air flow mode
Speed (rpm)
Louver position Louver position
Hi 1100
1050
1000
950
950
500
Me
Lo
Cooling
Fan
Quiet
Quiet
Hi 1120
1070
1000
930
500
1100
1030
970
Me
Lo
Heating
AS*7LMACW
S- Lo
1
4
5
6
3
2
1456
3
2
Operation mode Air flow mode
Speed (rpm)
Louver position Louver position
Hi 1200
1100
1000
940
940
500
Me
Lo
Cooling
Fan
Quiet
Quiet
Hi 1200
1100
1000
900
500
1150
1050
960
Me
Lo
Heating
AS*9LMACW
S- Lo
1456
3
2
Operation mode Air flow mode
Speed (rpm)
Louver position Louver position
Hi 1310
1260
1190
1100
970
500
Me
Lo
Cooling
Fan
Quiet
Quiet
Hi 1310
1180
1030
970
500
1200
1100
1000
Me
Lo
Heating
AS*12LMACW
S- Lo
1456
3
2

01-05
Operation mode Air flow mode Speed (rpm)
Hi 1140
1000
880
700
Me
Lo
Dry
Monitoring
Quiet
Hi/ Me+
Me
Lo
Quiet
1140
1050
980
800
700
480
Auto
S- Lo
Cooling
Fan
Heating
AS*A07LACM
Operation mode Air flow mode Speed (rpm)
Hi 1220
1060
900
720
Me
Lo
Dry
Monitoring
Quiet
Hi/ Me+
Me
Lo
Quiet
1220
1110
1040
830
720
480
Auto
S- Lo
Cooling
Fan
Heating
AS*A09LACM
Operation mode Air flow mode Speed (rpm)
Hi 1280
1100
900
750
Me
Lo
Dry
Monitoring
Quiet
Hi/ Me+
Me
Lo
Quiet
1320
1180
1080
860
750
480
Auto
S- Lo
Cooling
Fan
Heating
AS*A12LACM
Operation mode Air flow mode Speed (rpm)
Hi 1480
1250
1050
850
Me
Lo
Dry
Monitoring
Quiet
Hi/ Me+
Me
Lo
Quiet
1480
1250
1100
950
850
480
Auto
S- Lo
Cooling
Fan
Heating
AS*A14LACM
Operation mode Air flow mode Speed (rpm)
Hi 1480
1250
1100
950
Me
Lo
Dry
Monitoring
Quiet
Hi/ Me+
Me
Lo
Quiet
1480
1250
1100
950
950
480
Auto
S- Lo
Cooling
Fan
Heating
AS*A18LACM

01-06
AG*F09LAC
Operation mode Air flow mode Speed (rpm)
Hi 1120/ 950 1230/ ---
960/ 820 1070/ ---
660/ 560 680/ ---
820/ 700 910/ ---
660/ 560 750/ ---
570/ 480 --- / ---
1120/ 950 1230/ ---
1000/ 850 1090/ ---
860/ 730 940/ ---
660/ 560 750/ ---
660/ 560 680/ ---
Me
Lo
Heating
Quiet
Hi
Me
Lo
Quiet
Cool air prevention
S-Lo
S-Lo
Cooling
Fan
Upper& Lower
air flow mode
Upper
air flow mode
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
AG*F12LAC
Operation mode Air flow mode Speed (rpm)
Hi 1240/ 1050 1300/ ---
1050/ 890 1120/ ---
660/ 560 680/ ---
860/ 730 930/ ---
660/ 560 750/ ---
570/ 480 --- / ---
1240/ 1050 1300/ ---
1080/ 920 1140/ ---
910/ 770 980/ ---
660/ 560 750/ ---
660/ 560 680/ ---
Me
Lo
Heating
Quiet
Hi
Me
Lo
Quiet
Cool air prevention
S-Lo
S-Lo
Cooling
Fan
Upper& Lower
air flow mode
Upper
air flow mode
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
AG*F14LAC
Operation mode Air flow mode Speed (rpm)
Hi 1330/ 1120 1370/ ---
1100/ 930 1160/ ---
660/ 560 680/ ---
890/ 750 960/ ---
660/ 560 750/ ---
570/ 480 --- / ---
1330/ 1120 1370/ ---
1140/ 970 1180/ ---
940/ 800 1020/ ---
660/ 560 750/ ---
660/ 560 680/ ---
Me
Lo
Heating
Quiet
Hi
Me
Lo
Quiet
Cool air prevention
S-Lo
S-Lo
Cooling
Fan
Upper& Lower
air flow mode
Upper
air flow mode
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
(Upper/ Lower)
2. FAN OPERATION
The airflow can be switched in 5 steps such as AUTO, QUIET, LOW, MED, HIGH,
while the indoor fan only runs.
2-2. For AB*F14L/ 18L
AR*F09L/ 12L/ 14L/ 18L
AU*F09L/ 12L/ 14L/ 18L
AS*7L/ 9L/ 12L
AS*A07L/ 09L/ 12L/ 14L/ 18L
AG*F09L/ 12L/ 14L
The airflow can be switched in 4 steps such as AUTO, LOW, MED, HIGH,
while the indoor fan only runs.
2-1. For AB*14L/ 18L
AR* 9L/ 12L/ 14L/ 18L
AU*12L/ 14L/ 18L

3. COOLING OPERATION
(Fig.1)
airflow change - over ( Cooling: AUTO ) When the room
temperature rises
Lo mode
When the room
temperature lowers
01-07
Hi mode
Me mode
TR : Room temperature
Ts : Setting temperature
TR-Ts > 2 degC
=
1 degC > TR-Ts
2 degC > TR-Ts > 1 degC
=
TR-Ts > 3 degC
*(TR-Ts > 2.5 degC)
=
=
2 degC > TR-Ts
*(2 degC > TR-Ts)
3 degC > TR-Ts > 2 degC
*(2.5 degC > TR-Ts > 1.5 degC)
=
=
*1
*1 : Contains a condition to the following
When the operation mode is set to AUTO mode
at the start of operation.
When the setting temperature was changed.
When the operation mode was changed to COOLING mode.
When the airflow mode was changed to AUTO mode.
4. HEATING OPERATION
When the airflow is set to [AUTO], the indoor fan
motor operates [MED] mode.
Then the indoor fan motor will run according
to a room temperature, as shown in Figure 2.
On the other hand, if switched in [HIGH] [QUIET],
the indoor motor will run at a constant airflow
of [HEAT] operation modes QUIET, LOW, MED, HIGH,
as shown in Table 2.
47°C
41°C
*(42°C)
Indoor heat exchanger
temperature
( Fig.2 : Airflow change - over ( Heating : AUTO ) )
Hold
Go down one-step
Go up one-step
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 1.
On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow of [COOL]
operation modes QUIET, LOW, MED, HIGH,as shown in Table 2.
*For AS*7/ 9/ 12LMACW
*For AS*A07/ 09/ 12/ 14/ 18LACM
*For AB*F/ AR*F/ AS*A/ AU*F/ AG*F Type
4-1. For AB/ AR/ AU/ AS Type
4-2. For AB*F/ AR*F/ AU*F/ AS*A/ AG*F Type
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 3.
On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow
of [HEAT] operation modes QUIET, LOW, MED, HIGH, as shown in Table 2.
( Fig.3 : Airflow change - over ( Heating : AUTO ) )
TR-Ts > - 1.5 degC
=
- 2.5 degC > TR-Ts
- 1.5 degC > TR-Ts > - 2.5 degC
=
TR-Ts > - 1 degC
=
- 2 degC > TR-Ts
- 1 degC > TR-Ts > - 2 degC
=
When the room
temperature rises When the room
temperature drops
TR : Room temperature
Ts : Setting temperature
Lo mode
Me mode
Hi mode
*(Me+ mode)