Fujitsu ABF18LAT, ABF14LAT, ABF24LAT, AR 9LUAB, AR*12LUAD Service Instruction

...

Models Indoor unit Outdoor unit

AB*14LBAJ AB*18LBAJ AB*24LBAJ AB*F14LAT AB*F18LAT AB*F24LAT

AR* 9LUAB AR*12LUAD AR*14LUAD AR*18LUAD AR*22LUAD AR*F09LALU AR*F12LALU AR*F14LALU AR*F18LALU AR*F22LALU

AO*18LMAK2 AO*24LMAM2 AO*30LMAW4

SERVICE

INSTRUCTION

R410A

AU*12LBAB AU*14LBAB AU*18LBAB AU*F09LAL AU*F12LAL AU*F14LAL AU*F18LAL

AS*18LBAJ AS*24LBAJ AS* 7LMACW AS* 9LMACW AS*12LMACW AS*A07LACM AS*A09LACM AS*A12LACM AS*A14LACM AS*A18LACM

AG*F09LAC AG*F12LAC AG*F14LAC

SPLIT TYPE ROOM AIR CONDITIONER

INVERTER MULTI

Universal Floor / Ceiling Duct / Cassette Wall Mounted / Floor type

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 01-11 01-12 01-21 01-22 01-26 01-26 01-26 01-26

01-27 01-27 01-27

01-28

01-29

17. COIL DRY OPERATION CONTROL........................................................................... 01-28

01-32 01-32 01-33

01-27

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

02-44

02-11

02-49

1-1-1 PARTS LAYOUT DRAWING...............................................................................

1-1-2 WIRING................................................................................................................

1-1-3 DISASSEMBLY PROCESS.................................................................................

1-1 For AO*18LMAK2/ 24LMAM2.................................................................................

1 REPLACEMENT PARTS ( For OUTDOOR UNIT ).......................................................

3. REPLACEMENT PARTS

03-01 03-01 03-01

03-04

03-03

1-2-1 PARTS LAYOUT DRAWING...............................................................................

1-2-2 WIRING................................................................................................................

1-2-3 DISASSEMBLY PROCESS.................................................................................

1-2-4 ASSEMBLY PROCESS of INVERTER UNIT......................................................

1-2 For AO*30LMAW4..................................................................................................

03-08 03-08

03-11

03-10

03-16

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 1-1 : Operation mode selection table )

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

( Table 1-2 : Operation mode selection table for AS*18/ 24LBAJ )

Room temperature :TR

Operation mode

TR > Ts +2.5 degC

Ts +2.5 degC > TR

Ts +2.5 degC > TR > Ts-2.5 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.

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

Cooling

S-Lo

Heating

AB*14LBAJ

Operation mode Air flow mode Speed (rpm)

Hi 1030

890 770

250

Operation mode Air flow mode Speed (rpm)

Hi 1180

1040

900

Cooling

S-Lo

Heating

AB*24LBAJ

300

250

Cooling

S-Lo

Heating

Cooling Heating

AB*18LBAJ

Operation mode Air flow mode Speed (rpm)

Hi 955

870 800 650

S-Lo

Operation mode Air flow mode Speed (rpm)

Hi 750

680 610 550

S-Lo

Operation mode Air flow mode Speed (rpm)

Hi 1000

860 720 570

S-Lo

Operation mode Air flow mode Speed (rpm)

Hi 1040

890 750 595

S-Lo

AR*9LUAB

AR*14LUAD

Cooling Heating

Operation mode Air flow mode Speed (rpm)

Hi 1270

1050

800 595

S-Lo

AR*22LUAD

AR*12LUAD

AR*18LUAD

Cooling Heating

Operation mode Air flow mode Speed (rpm)

Hi 850

800 740 670 300

Quiet

S-Lo

Operation mode Air flow mode Speed (rpm)

Hi 1040

950 800 740 300

Quiet

S-Lo

Operation mode Air flow mode Speed (rpm)

Hi 1230

1040

900 780 300

Quiet

S-Lo

AB*F14LAT

AB*F24LAT

AB*F18LAT

01-03

Cooling Heating

AU*12/ 14LBAB

--- ---

AU*18LBAB

AU*F09LAL AU*F12LAL

Operation mode Air flow mode Speed (rpm)

Hi 730

670 590

S-Lo

Operation mode Air flow mode Speed (rpm)

Hi 800

700 600

S-Lo

Cooling Heating

Operation mode Air flow mode Speed (rpm)

Hi 1010

950 880 830 450

Quiet

S-Lo

Operation mode Air flow mode Speed (rpm)

Hi 790

720 620 570 330

Quiet

S-Lo

Operation mode Air flow mode Speed (rpm)

Hi 990

880 770 620 330

Quiet

S-Lo

AR*F09LALU

AR*F14LALU

Cooling Heating

Operation mode Air flow mode Speed (rpm)

Hi 1320

1100

980 780 450

Quiet

S-Lo

AR*F22LALU

Cooling Heating

Operation mode Air flow mode Speed (rpm)

Hi 1040

950 840 700 450

Quiet

S-Lo

AR*F18LALU

AR*F12LALU

Operation mode Air flow mode

Speed (rpm)

Hi 660

580 520 460

Dry Monitoring

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

Dry Monitoring

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

Dry Monitoring

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

Dry Monitoring

Quiet

840

750

Me+

800

650 500 460 300

Auto S- Lo

Cooling Fan

Heating

AU*F18LAL

01-04

Cooling Heating

Operation mode Air flow mode Speed (rpm)

Hi 1160

1000

830 780 550

Quiet

S-Lo

Operation mode Air flow mode Speed (rpm)

Hi 1290

1100

870 730 550

Quiet

S-Lo

AS*18LBAJ AS*24LBAJ

Operation mode Air flow mode

Speed (rpm)

Louver position Louver position

Hi 1100

1050 1000

950

950 500

Cooling Fan

Quiet

Hi 1120

1070 1000

930 500

1100 1030

970

Heating

AS*7LMACW

S- Lo

Operation mode Air flow mode

Speed (rpm)

Louver position Louver position

Hi 1200

1100 1000

940

940 500

Cooling Fan

Quiet

Hi 1200

1100 1000

900 500

1150 1050

960

Heating

AS*9LMACW

S- Lo

Operation mode Air flow mode

Speed (rpm)

Louver position Louver position

Hi 1310

1260 1190 1100

970 500

Cooling Fan

Quiet

Hi 1310

1180 1030

970 500

1200 1100 1000

Heating

AS*12LMACW

S- Lo

01-05

Operation mode Air flow mode

Speed (rpm)

Hi 1140

1000

880 700

Dry Monitoring

Quiet

Hi/ Me+

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

Dry Monitoring

Quiet

Hi/ Me+

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

Dry Monitoring

Quiet

Hi/ Me+

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

Dry Monitoring

Quiet

Hi/ Me+

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

Dry Monitoring

Quiet

Hi/ Me+

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/ ---

Heating

Quiet

Cool air prevention

S-Lo

Cooling Fan

Upper& Lower air flow mode

Upper air flow mode

(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/ ---

Heating

Quiet

Cool air prevention

S-Lo

Cooling Fan

Upper& Lower air flow mode

Upper air flow mode

(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/ ---

Heating

Quiet

Cool air prevention

S-Lo

Cooling Fan

Upper& Lower air flow mode

Upper air flow mode

(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/ 24L AR*F09L/ 12L/ 14L/ 18L/ 22L AU*F09L/ 12L/ 14L/ 18L AS*7L/ 9L/ 12L/ 18L/ 24L 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/ 24L AR* 9L/ 12L/ 14L/ 18L/ 22L 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 : 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)

01-08

5. COOL AIR PREVENTION CONTROL (Heating mode)

Setting Fan mode

Lo mode

S-Lo mode

33°C

30°C

Indoor heat exchanger temperature

The maximum value of the indoor fan speed is set as shown in Figure 4, based on the detected temperature by the indoor heat exchanger sensor on heating mode.

( Fig.4 : Cool Air Prevention Control )

5-1. For AB/ AR/ AU Type

5-2. For AB*F/ AU*F Type

5-3. For AR*F Type

42°C

30°C

34°C

Indoor heat exchanger temperature

When the compressor operates, the maximum value of the indoor fan speed is set as shown in Figure 5, based on the detected temperature by the indoor heat exchanger sensor on heating mode. When the compressor does not operate, the indoor fan motor operates [S-Lo] mode.

( Fig.5 : Cool Air Prevention Control )

< [Hi] setting >

Me+

Cool air prevention

39°C

37°C

32°C

24°C

39°C

32°C

Indoor heat exchanger temperature

< The other of [Hi] setting >

< [Hi] setting >

< The other of [Hi] setting >

S-Lo

Lo (Qu)

Cool air prevention

37°C

30°C

34°C

24°C

Setting FAN mode

S-Lo

When the compressor operates, the maximum value of the indoor fan speed is set as shown in Figure 6, based on the detected temperature by the indoor heat exchanger sensor on heating mode. When the compressor does not operate, the indoor fan motor operates [S-Lo] mode.

( Fig.6 : Cool Air Prevention Control )

Setting Fan mode

Lo (Qu) mode

S-Lo mode

37°C

30°C

32°C

24°C

Indoor heat exchanger temperature

Hi mode

Lo mode

S-Lo mode

37°C

30°C

32°C

24°C

Indoor heat exchanger temperature

01-09

42°C

35°C

30°C

18°C

39°C

32°C

26°C

15°C

Indoor heat exchanger temperature

The maximum value of the indoor fan speed is set as shown in Figure 7-1,7-2, based on the fan speed mode and the detected temperature by the indoor heat exchanger sensor on heating mode.

( Fig.7-1 : Cool Air Prevention Control for AS*7/ 9/ 12LMACW )

5-4. For AS Type

E zone

D zone

C zone

B zone

A zone

AUTO HIGH MED LOW QUIET

E zone D zone C zone B zone A zone

Fan speed mode

ZONE

AUTO AUTO

S-Lo OFF OFF OFF OFF OFF

S-Lo S-Lo S-Lo S-Lo

Lo Lo Lo

Setting Fan Speed

40°C

33°C

28°C

18°C

38°C

31°C

26°C

16°C

Indoor heat exchanger temperature

( Fig.7-2 : Cool Air Prevention Control for AS*18/ 24LBAJ )

E zone

D zone

C zone

B zone

A zone

AUTO HIGH MED LOW QUIET

E zone D zone C zone B zone A zone

Fan speed mode

ZONE

AUTO AUTO

S-Lo OFF OFF OFF OFF OFF

S-Lo S-Lo S-Lo S-Lo

Lo Lo Lo

Setting Fan Speed

5-5. For AS*A Type

47°C

30°C

34°C

Indoor heat exchanger temperature

When the compressor operates, the maximum value of the indoor fan speed is set as shown in Figure 8, based on the detected temperature by the indoor heat exchanger sensor on heating mode. When the compressor does not operate, the indoor fan motor operates [S-Lo] mode.

( Fig.8 : Cool Air Prevention Control )

< [Hi] setting >

Me+

Cool air prevention

40°C

37°C

40°C

32°C

28°C

40°C

32°C

Indoor heat exchanger temperature

< The other of [Hi] setting >

S-Lo

Lo (Qu)

Cool air prevention

37°C

30°C

34°C

28°C

Setting FAN mode

S-Lo

[ AS*A07L: Cool air prevention 800rpm, S-Lo 480rpm ] [ AS*A09L: Cool air prevention 830rpm, S-Lo 480rpm ] [ AS*A12L: Cool air prevention 860rpm, S-Lo 480rpm ] [ AS*A14L/ 18L: Cool air prevention 850rpm, S-Lo 480rpm ]

01-10

5-6. For AG*F Type

42°C

30°C

31°C

Indoor heat exchanger temperature

When the compressor operates, the maximum value of the indoor fan speed is set as shown in Figure 9, based on the detected temperature by the indoor heat exchanger sensor on heating mode. When the compressor does not operate, the indoor fan motor operates [S-Lo] mode.

( Fig.9 : Cool Air Prevention Control )

< [Hi] setting >

Cool air prevention

39°C

37°C

34°C

29°C

24°C

39°C

29°C

Indoor heat exchanger temperature

< The other of [Hi] setting >

S-Lo

Lo (Qu)

Cool air prevention

37°C

30°C

31°C

24°C

Setting FAN mode

S-Lo

During the dry mode operation, the fan speed setting can not be changed. ( S-Lo )

6. DRY OPERATION

01-11

4. OUTDOOR FAN CONTROL

Following table shows the fan speed of the outdoor unit.

1. Outdoor Fan Motor

For AO*18LMAK2/ 24LMAM2 When the outdoor heat exchanger tenperature is lower than 2°C, the fan speed switches to 780rpm on heating mode.

For AO*30LMAW4 It runs at 500rpm for 20 seconds after starting up the outdoor fan. When the outdoor heat exchanger tenperature is lower than 2°C, the fan speed switches to 780rpm on heating mode.

( Table 3 : Fan speed of the outdoor unit )

780/ 420 rpm

820/ 780/ 400/ 300/ 200 rpm

850/ 780/ 400/ 300/ 200 rpm

780/ 420 rpm

Cooling

Heating

AO*18LMAK2

AO*30LMAW4

AO*24LMAM2

5. LOUVER CONTROL

1. VERTICAL LOUVER CONTROL

Each time the button is pressed, the air direction range will change as follows:

Cooling / Dry mode Heating mode Fan mode

Use the air direction adjustments within the ranges shown above.

The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

Cooling / Dry / Fan mode Horizontal flow Heating mode Downward flow

(Function Range)

(Air Direction Range)

(Operation Range)

1-2. SWING OPERATION

When the swing signal is received from the remote controller, the vertical louver starts to swing. The range of swing depends on the set airflow direction.

(Swinging Range)

When the indoor fan is either at S-Lo or Stop mode, the swinging operation is interrupted and the louver stops at the memorized position.

01-12

The indoor fan motor starts after the louver reaches to the setting position.

At the start of operation if the setting louver position is ,the setting position is set to after the louver moves from totally-enclosed position to . (Positioning Control)

( Stop mode means Operation stop.)

Airflow direction set Range of swing

to to to to

5-1 Compact Cassette (AU) type

1. VERTICAL LOUVER CONTROL

Each time the button is pressed, the air direction range will change as follows:

Cooling / Dry mode Heating mode Fan mode

Use the air direction adjustments within the ranges shown above.

The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

Cooling / Dry / Fan mode Horizontal flow Heating mode Downward flow

(Function Range)

(Air Direction Range)

(Operation Range)

1-2. SWING OPERATION

When the swing signal is received from the remote controller, the vertical louver starts to swing. The range of swing depends on the set airflow direction.

When the indoor fan is either at S-Lo or Stop mode, the swinging operation is interrupted and the louver stops at the memorized position.

01-13

The indoor fan motor starts after the louver reaches to the setting position.

At the start of operation if the setting louver position is or ,the setting position is set to or after the louver moves from totally-enclosed position to . (Positioning Control)

( Stop mode means Operation stop.)

1 2 3 4 5 6 7

(Swinging Range)

Airflow direction set

Range of swing

to to to to

to to to

5-2 Universal (AB) type

2. HORIZONTAL LOUVER CONTROL

Each time the button is pressed, the air direction range will change as follows:

Cooling / Dry mode Heating mode Fan mode

Use the air direction adjustments within the ranges shown above.

The horizontal airflow direction is set automatically on after initialization.

(Function Range)

(Air Direction Range)

(Operation Range)

2-1. SWING OPERATION

When the swing signal is received from the remote controller, the horizontal louver starts to swing. The range of swing depends on the set airflow direction.

When the indoor fan is either at S-Lo or Stop mode, the swinging operation is interrupted and the louver stops at the memorized position.

01-14

( Stop mode means Operation stop.)

1 2 3 4 5

1 2 334 5

(Swinging Range)

Airflow direction set

Range of swing

to to to to

1 5

1. VERTICAL LOUVER CONTROL

Each time the button is pressed, the air direction range will change as follow:

Cooling / Dry mode Heating mode

Use the air direction adjustments within the ranges shown above.

The remote control unit's display does not change.

The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

Cooling / Dry mode Horizontal flow Heating mode Downward flow

During AUTO mode operation, for the first minute after beginning operation, airflow will be horizontal ; the air direction cannot be adjusted during this period.

Cooling mode / Dry mode / Fan mode ( ) ) Heating mode / Fan mode (

(Function Range)

(Air Direction Range)

(Operation Range)

1-2. SWING OPERATION

When the swing signal is received from the remote controller, the vertical louver starts to swing.

(Swinging Range)

When the indoor fan is either at S-lo or Stop mode, the swinging operation is interrupted and the louver stops at the memorized position.

01-15

5-3 Wall Mounted (AS*7/ 9/ 12L) type

1. VERTICAL LOUVER CONTROL

Each time the button is pressed, the air direction range will change as follow:

Cooling / Dry mode Heating mode

Use the air direction adjustments within the ranges shown above.

The remote control unit's display does not change.

Direction Only the direction of the Moving Diffuser changes: the direction of the Air Direction Flaps does not change.

The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

Cooling / Dry mode Horizontal flow Heating mode Downward flow

During AUTO mode operation, for the first minute after beginning operation, airflow will be horizontal ; the air direction cannot be adjusted during this period.

(Function Range)

(Air Direction Range)

(Operation Range)

1-2. SWING OPERATION

01-16

5-4 Wall Mounted (AS*18/ 24L) type

When the swing signal is received from the remote controller, the vertical louver starts to swing. The range of swing depends on the set airflow direction.

When the indoor fan is either at S-Lo or Stop mode, the swinging operation is interrupted and the louver stops at the memorized position. ( Stop mode means Operation stop.)

(Swinging Range)

Airflow direction set

Range of swing

to to to to

to to

01-17

2. HORIZONTAL LOUVER CONTROL

Each time the button is pressed, the air direction range will change as follows:

Cooling / Dry mode Heating mode Fan mode

Use the air direction adjustments within the ranges shown above.

The horizontal airflow direction is set automatically on after initialization.

(Function Range)

(Air Direction Range)

(Operation Range)

2-1. SWING OPERATION

When the swing signal is received from the remote controller, the horizontal louver starts to swing. The range of swing depends on the set airflow direction.

When the indoor fan is either at S-Lo or Stop mode, the swinging operation is interrupted and the louver stops at the memorized position. ( Stop mode means Operation stop.)

1 2 3 4 5

1 2 334 5

(Swinging Range)

Airflow direction set

Range of swing

to to to to

1 5

1. VERTICAL LOUVER CONTROL

Each time the button is pressed, the air direction range will change as follow:

Cooling / Dry mode Heating mode Fan mode

Use the air direction adjustments within the ranges shown above.

The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

Cooling / Dry mode Horizontal flow Heating mode Downward flow

When the temperature of the air being blown out is low at the start of heating operation or during defrosting, the airflow direction temporarily becomes to prevent cold air being blown onto the body.

During use of the Cooling and Dry modes, do not set the Air Flow Direction Louver in the Heating

range ( ) for long period of time, since water vapor many condense near the outlet louvers and drop of water may drip from the air conditioner. During the Cooling and Dry modes, if the Air Flow Direction Louvers are left in the hating range for more than 30 minutes, they will automatically return to position .

During Monitor operation in AUTO CHANGEOVER mode, the airflow direction automatically becomes , and it cannot be adjusted.

Cooling mode / Dry mode / Fan mode ( ) Heating mode / Fan mode ( )

(Function Range)

(Air Direction Range)

(Operation Range)

1-2. SWING OPERATION

When the swing signal is received from the remote controller, the vertical louver starts to swing.

(Swinging Range)

When the indoor fan is either at S-lo or Stop mode, the swinging operation is interrupted and the louver stops at the memorized position.

01-18

5-5 Wall Mounted (AS*A) type

01-19

5-6 Compact Cassette (AU*F) type

1. VERTICAL LOUVER CONTROL

Each time the button is pressed, the air direction range will change as follows:

Use the air direction adjustments within the ranges shown above.

The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

Cooling / Dry / Fan mode Horizontal flow Heating mode Downward flow

(Function Range)

(Air Direction Range)

(Operation Range)

1-2. SWING OPERATION

When the swing signal is received from the remote controller, the vertical louver starts to swing. The range of swing depends on the set airflow direction.

When the indoor fan is either at S-Lo or Stop mode, the swinging operation is interrupted and the louver stops at the memorized position.

( Stop mode means Operation stop.)

During Cooling/Dry mode/Fan mode : During Heating mode :

During AUTO mode operation, for the first minute after beginning operation, air-flow will be horizontal ; the air direction cannot be adjusted during this period.

(Swinging Range)

The type of operation

Cooling/Dry/Fan

Range of swing

Heating

01-20

5-7 Floor (AG*F) type

1. VERTICAL LOUVER CONTROL

1-2. SWING OPERATION

Each time the button is pressed, the air direction range will change as follows:

Use the air direction adjustments within the ranges shown above.

The vertical airflow direction is set automatically as shown, in accordance with the type of operation selected.

Cooling / Dry mode Horizontal flow Heating mode Downward flow

When the temperature of the air being blown out is low at the start of heating operation or during defrosting, the airflow direction temporarily becomes to prevent cold air being blown onto the body.

During Monitor operation in AUTO CHANGEOVER mode, the airflow direction automatically becomes , and it cannot be adjusted.

(Function and Operation Range)

(Air Direction Range)

When the swing signal is received from the remote controller, the vertical louver starts to swing.

(Swinging Range)

When the indoor fan is either at S-lo or Stop mode, the swinging operation is interrrupted and the louver stops at the memorized position.

01-21

6. COMPRESSOR CONTROL

1. OPERATION FREQUENCY RANGE

The operation frequency of the compressor is different based on the operation mode as shown in the table 4.

Cooling Heating

Min Max Min Max

AO*18LMAK2 15Hz 80Hz 15Hz 95Hz AO*24LMAM2 AO*30LMAW4

15Hz 80Hz 15Hz 95Hz 15Hz 90Hz 20Hz 95Hz

(Table 4 : Compressor Operation Frequency Range)

2. OPERATION FREQUENCY CONTROL AT START UP

2-1. For AO*18L/ 24L

The compressor frequency soon after the start-up is controlled as shown in Figure 10-1.

(Fig.10-1 : Compressor Control at Start-up)

56Hz

40Hz

46sec 60sec 80sec 160sec

80Hz

Hold

2-2. For AO*30LMAW4

The compressor frequency soon after the start-up is controlled as shown in Figure 10-2.

(Fig.10-2 : Compressor Control at Start-up)

180sec

60sec

120sec

720sec

1 Discharge pipe temp. > 30°C 2 Discharge pipe temp. < 30°C

Hold

7. TIMER OPERATION CONTROL

1. ON / OFF TIMER

OFF timer : When the clock reaches the set time, the air conditioner will be turned off.

Operation mode

Stop mode

Set time of timer

ON timer : When the clock reaches the set time, the air conditioner will be turned on.

Operation mode

Stop mode

Set time of timer

2. PROGRAM TIMER

01-22

7-1 Wireless Remote Controller ( For AB/ AU/ AU*F/ AS/ AS*A/ AB*F/ AG*F type )

ON / TIMER OFF / TIMER

PROGRAM TIMER

SLEEP TIMER

The program timer allows the OFF timer and ON timer to be used in combination one time.

Operation mode

Operation will start from the timer setting (either OFF timer or ON timer) whichever is closest to the clock's current timer setting. The order of operations is indicated by the arrow in the remote control unit's display.

SLEEP timer operation cannot be combined with ON timer operation.

Stop mode

Operation mode

Set time

Set time Set time Set time

01-23

3. SLEEP TIMER

If the sleep timer is set, the room temperature is monitored and the operation is stopped automatically. If the operation mode or the set temperature is change after the sleep timer is set, the operation is continued according to the changed setting of the sleep timer from that time ON.

Set temperature rises

( Ts : Set temperature )

Stop of operation

Set temperature lowers ( Ts : Set temperature )

Stop of operation

In the cooling operation mode

When the sleep timer is set, the setting temperature is increased 1 degC. It increases the setting temperature another 1 degC after 1 hour. After that, the setting temperature is not changed and the operation is stopped at the time of timer setting.

+1degC

+2degC

-2degC

-1degC

-4degC

-3degC

Set

60min

In the heating operation mode

When the sleep timer is set, the setting temperature is decreased 1 degC. It decreases the setting temperature another 1 degC every 30 minutes. Upon lowering 4 degC, the setting temperature is not changed and the operation stops at the time of timer setting.

Set

30min

1. ON / OFF TIMER

OFF timer : When the clock reaches the set time, the air conditioner will be turned off.

Operation mode

Stop mode

Set time of timer

ON timer : When the clock reaches the set time, the air conditioner will be turned on.

Operation mode

Stop mode

Set time of timer

The weekly timer allows up to two ON and OFF time to set up per day.

Use this timer function to set operating time for each day of the week.

Operation mode

The operating time can be set in 30 min increments only. The OFF time can be carried over to next day. The ON timer and the OFF timer functions cannot be set with using the weekly timer.

Both ON and OFF time must be set.

2. WEEKLY TIMER

2-1. WEEKLY TIMER

Stop mode

Operation mode

Set time

Set time Set time Set time

01-24

7-2 Wired Remote Controller ( For AR/ AR*F type )

ON / TIMER OFF / TIMER

WEEKLY TIMER

TEMPERATURE SET BACK TIMER

01-25

The DAY OFF setting is only available for days for which weekly settings already exist.

The SET BACK timer only changes the set temperature for 7 days, it cannot be used to start or stop air conditioner operation.

The SET BACK timer can be set to operate up to two times per day but only one temperature setting can be used.

During the COOL/DRY mode, the air conditioner will operate at a minimum of 18°C even if the SET BACK temperature is set to 17°C or lower.

The DAY OFF setting can only be set one time. The DAY OFF setting is cancelled automatically after the set day has passed.

Normal

Next day setting

If the operating time carries over to the next day (during a next day setting), the effective DAY OFF range will be set as shown below.

2-2. DAY OFF setting

3. TEMPERATURE SET BACK TIMER

Stop mode

Operation mode

Stop mode

Operation mode

Preceding day Next day

DAY OFF

Stop mode

Operation mode

Stop mode

Operation mode

DAY OFF

Setting day

Preceding day Next daySetting day

Case of SET BACK timer on the Cooling operation. ( Setting temperature :22°C, SET BACK temperature :26°C)

SET BACK setting

Operation temperature

26°C

22°C

26°C

22°C

24°C

ON OFF OFFON

*1: During the SET BACK function, the setting temperature is changed.

Chenge the setting temperature: 22°C 24°C

8. ELECTRONIC EXPANSION VALVE CONTROL

9. TEST OPERATION CONTROL

The compressor won't enter operation status for 3 minutes after the compressor is stopped, even if any operation is given.

10. PREVENT TO RESTART FOR 3 MINUTES ( 3 MINUTES ST )

11. 4-WAY VALVE EXTENSION SELECT

01-26

The most proper opening of the electronic expansion valve is calculated and controlled under the present operating condition based on the following values. The compressor frequency, the temperatures detected by the discharge temperature sensor and the outdoor temperature sensor.

The pulse range of the electronic expansion valve control is between 30 to 480 pulses.

At the time of supplying the power to the outdoor unit, the initialization of the electronic expansion valve is operated (1000 pulses are input to the closing direction).

At the time when the air conditioner is switched from the cooling mode to heating mode, the compressor is stopped, and the 4-way valve is switched in 3 minutes later after the compressor stopped.

Under the condition where the air conditioner runs, short two metal contacts under the battery compartment lid, and the test operation control mode will appear. During test running, the operation lamp and timer lamp of the air conditioner body twinkle simultaneously. Set the test operation mode, and the compressor will continue to run regardless of whether the room temperature sensor detects. The test operation mode is released if 60 minutes have passed after setting up the test operation.

With Wireless Remote Controller

Under the condition where the air conditioner stops, press the MASTER CONTROL button and the FAN CONTROL button simultaneously for 5 seconds or more, and the test operation control mode will appear. During test running, " " will display on the remote controller display. Set the test operation mode, and the compressor will continue to run regardless of whatever the room temperature sensor detects. The test operation mode is released if 60 minutes have passed after setting up the test operation.

With Wired Remote Controller ( without TEST RUN button )

Under the condition where the air conditioner runs, press the TEST RUN button, and the test operation control mode will appear. During test running, the operation lamp and timer lamp of the air conditioner body twinkle simultaneously. Set the test operation mode, and the compressor will continue to run regardless of whether the room temperature sensor detects. The test operation mode is released if 60 minutes have passed after setting up the test operation.

With Wireless Remote Controller ( with TEST RUN button )

13. MANUAL AUTO OPERATION (Indoor unit body operation)

If MANUAL AUTO Button is set, the operation is controlled as shown in Table 5. If the remote control is lost or battery power dissipated, this function will work without the remote control.

(Table 5 : Manual auto operation)

14. COMPRESSOR PREHEATING

01-27

When the outdoor heat exchanger temperature is lower than Operation temperature (Refer to Table 6) and the heating operation has

been stopped for 3 hours, power is applied to the compressor and the compressor is heated. (By heating the compressor, warm air is quickly discharged when operation is started.) When operation was started, and when the outdoor temperature rises to Release temperature or greater, preheating

is over.

(Table 6 : Preheating Operation / Release Temperature)

Before 24 hour After 24 hour

Operation temperature

Release temperature

3°C 7°C 0°C 4°C

OPERATION MODE

Auto changeover

FAN CONT. MODE

Auto

TIMER MODE

Continuous (No timer setting available)

SETTING TEMP.

23°C or 24°C

SETTING LOUVER

Standard

SWING

OFF

The fan motor for Fresh Air is operated in synchronization with the indoor fan operation as shown in Figure 11.

15. FRESH AIR CONTROL (For AR type)

(Fig.11 : Fresh air control)

Operation

Stop

Operation

Stop

Fan motor (Indoor unit)

Fan motor (for Fresh Air)

12. AUTO RESTART

When the power was interrupted by a power failure, etc. during operation, the operation contents at that time are memorized and when power is recovered, operation is automatically resumed with the memorized operation contents. When the power is interrupted and recovered during timer operation, timer operation is canceled, but only setting time is memorized.

[Operation contents memorized when the power is interrupted]

Operation mode Set temperature

Set air flow

Timer mode and timer time Air flow Direction

Swing Thermistor detected position (For AU*F model wih wired remote controller)

10°C HEAT (For AG*F model)

+ 86 hidden pages

Fujitsu ABF18LAT, ABF14LAT, ABF24LAT, AR 9LUAB, AR*12LUAD Service Instruction

Specifications and Main Features

Frequently Asked Questions

User Manual

Fujitsu AB*F18LAT, AB*F14LAT, AB*F24LAT, AR* 9LUAB, AR*12LUAD Service Instruction

Specifications and Main Features

Frequently Asked Questions

User Manual

Fujitsu ABF18LAT, ABF14LAT, ABF24LAT, AR 9LUAB, AR*12LUAD Service Instruction