Fujitsu AU G12LVLB Series Original Betriebsanleitung

SPLIT TYPE

ROOM AIR CONDITIONER

Models Indoor unit Outdoor unit

AO* G12LALL

AO* G14LALL

AO* G18LALL

SERVICE

INSTRUCTION

R410A

AU* G12LVLB

AU* G14LVLB

AU* G18LVLB

AR* G12LLTB

AR* G14LLTB

AR* G18LLTB

AB* G18LVTB

Floor Ceiling type

Slim Duct type

Cassette type

INVERTER

AR* G12LSLAP

AR* G14LSLAP

AR* G18LSLAP

Duct type Mini Ducttype

CONTENTS

1. DESCRIPTION OF EACH CONTROL OPERATION

1. COOLING OPERATION.............................................................................................

3. DRY OPERATION......................................................................................................

2. HEATING OPERATION..............................................................................................

5. INDOOR FAN CONTROL...........................................................................................

4. AUTO CHANGEOVER OPERATION.........................................................................

7. LOUVER CONTROL...................................................................................................

6. OUTDOOR FAN CONTROL.......................................................................................

9. TIMER OPERATION CONTROL................................................................................

8. COMPRESSOR CONTROL........................................................................................

11. TEST OPERATION CONTROL..................................................................................

10. ELECTRONIC EXPANSION VALVE CONTROL.......................................................

13. 4-WAY VALVE EXTENSION SELECT.......................................................................

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

18. ECONOMY OPERATION...........................................................................................

14. AUTO RESTART........................................................................................................

21. DRAIN PUMP OPERATION.......................................................................................

19. FRESH AIR CONTROL..............................................................................................

22. DEFROST OPERATION CONTROL..........................................................................

01-01

01-02

01-03

01-05

01-09

01-10

01-13

01-14

01-18

01-19

01-20

01-21

20. EXTERNAL ELECTRICAL HEATER CONTROL........................................................ 01-20

01-22

23. OFF DEFROST OPERATION CONTROL.................................................................. 01-24

24. VARIOUS PROTECTIONS......................................................................................... 01-25

25. FORCED COOLING OPERATION............................................................................. 01-26

26. COMPRESSOR STOP CONTROL............................................................................. 01-26

01-18

15. MANUAL AUTO OPERATION.................................................................................... 01-19

16. COMPRESSOR PREHEATING.................................................................................. 01-19

17. 10°C HEAT OPERATION........................................................................................... 01-20

2-1-2 WIRED REMOTE CONTROLLER DISPLAY......................................................

2-1-1 INDOOR UNIT & WIRED REMOTE CONTROLLER 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 TROUBLE SHOOTING WITH ERROR CODE(For WIRELESS LAN ADAPTER).....

02-01

02-02

2-1-3 WIRELESS LAN INDICATOR DISPLAY............................................................. 02-03

2-1-4 MOBILE APP DISPLAY(For AIR CONDITIONER).............................................. 02-04

2-1-5 MOBILE APP DISPLAY(In WIRELESS LAN CONTROL SYSTEM)....................02-05

02-37

02-11

02-42

2-5 SERVICE PARTS INFORMATION............................................................................ 02-50

3-1-3 Procedures to change the Function Setting........................................................

3-1-1 INDOOR UNIT (For AU*G12/14/18LVLB / AR*G12/14/18LLTB / AB*G18LVTB)...............

3-1 FUNCTION SETTING................................................................................................

3. APPENDING DATA

03-01

3-1-1 INDOOR UNIT (For AR*G12/ 14/ 18LSLAP).......................................................................... 03-01

03-08

3-2-2 OUTDOOR UNIT................................................................................................

3-2-1 INDOOR UNIT....................................................................................................

3-2 Thermistor Resistance Values................................................................................ 03-13

03-13

R410A

FLOOR CEILING / SLIM DUCT

MINI DUCT / CASSETTE type

INVERTER

1 . DESCRIPTION OF EACH

CONTROL OPERATION

1-1. COOLING OPERATION

1-1-1 COOLING CAPACITY CONTROL

A sensor (room temperature thermistor) built in the indoor unit will usually perceive

difference or variation between a set temperature and present room temperature, and

controls the operation frequency of the compressor.

The maximum frequency is limited in the range shown in Figure 1 based on the fan speed mode

and the outdoor temperature.

* If the room temperature is 2 degC higher than a set temperature,

the compressor operation frequency will attain to maximum frequency.

* If the room temperature is 2.5 degC lower than a set temperature, the compressor will be stopped.

* When the room temperature is between +2 degC to -2.5 degC of the setting temperature,

the compressor frequency is controlled within the range shown in Table1.

minimum

frequencymaximum

frequency

18rps 113rps

18rps 80rps

Outdoor air

temperature A zone

B zone

C zone

D zone

E zone

F zone

Hi Me Lo Quiet

A zone 113rps

113rps

80rps

54rps

66rps

54rps

45rps

54rps

45rps

38rps

34rps

24rps

80rps

49rps

38rps

42rps

30rps

34rps

22rps

B zone

C zone

D-F zone

A zone

B zone

C zone

D-F zone

( Table 1 : Compressor Frequency Range )

( Fig. 1 : Limit of Maximum Frequency based on Outdoor Temperature )

01-01

Fan speed mode

When the room

temperature rises

When the room

temperature drops

36°C

32°C

21°C

12°C

2°C

34°C

30°C

19°C

10°C

0°C

AO*G14/18LALL

AO*G12LALL

AO*G14/18LALL

AO*G12LALL

1-2. HEATING OPERATION

1-2-1 HEATING CAPACITY CONTROL

A sensor (room temperature thermistor) built in the indoor unit will usually perceive

difference or variation between a set temperature and present room temperature, and

controls the operation frequency of the compressor.

* If the room temperature is lower 3 degC than a set temperature,

the compressor operation frequency will attain to maximum frequency.

* If the room temperature is higher 2.5 degC than a set temperature, the compressor

will be stopped.

* When the room temperature is between +2.5 degC to -3 degC of the setting temperature,

the compressor frequency is controlled within the range shown in Table2.

( Table 2 : Compressor Frequency Range )

01-02

minimum

frequency maximum

frequency

18rps 120rps

AO*G14/18LALL

AO*G12LALL

Operating

frequency

34rps

1-3. DRY OPERATION

1-3-1 INDOOR UNIT CONTROL

The compressor rotation frequency shall change according to set temperature and room

temperature variation which the room temperature sensor of the indoor unit has detected

as shown in the Fig 2.

Room

temperature Room

temperature

Compressor ON Ts-0.5 degC

Ts-1.5 degCCompressor OFF

( Table 3 : Compressor frequency )

( Fig.2 : Compressor Control based on Room Temperature )

Ts : Setting temperature

AO*G14/18LALL

AO*G12LALL

1-4. AUTO CHANGEOVER OPERATION

01-03

When the air conditioner is set to the Auto mode by remote controller, operation starts in the optimum

mode from among the Heating, Cooling, Dry and Monitoring mode. During operation, the

optimum mode is automatically switched in accordance with temperature changes. The temperature

can be set between 18°C and 30°C in 1°C steps.

When operation starts, indoor fan and outdoor fan are operated for

around 2 minutes (AB type, AR type), or 3 minutes (AU type).

Room temperature and outdoor temperature are sensed,

and the operation mode is selected in accordance with the table below. <Monitoring mode>

Cooling mode

25°C Heating mode

( Table 4 : Operation mode selection table )

Room temperature (TR)

TR> Ts + 2°C

Ts + 2°C TR Ts - 2°C *Middle zone

TR < Ts - 2°C Heating

When Cooling or Dry mode was selected at and air flow mode is Auto, the air conditioner operates as follow.

The same operation as COOLING OPERATION AND DRY OPERATION.

When the room temperature has remained at set temperature -1.5°C,

operation is automatically switched to Dry mode.

If the room temperature reaches set temperature +2°C during Dry mode, operation returns to Cooling.

( Fig. 3 : Outdoor temperature zone selection )

Cooling

(Autmatic dry)

Operation mode

*If it's Middle zone, operation mode of indoor unit is selected as below.

(1). Same operation mode is selected as outdoor unit.

If outdoor unit is operating in Cooling, Dry, and Heating mode,

indoor unit will be operated by the same operation mode.

(2). Selected by the outdoor temperature.

If outdoor unit is operating in other than Cooling, Dry, and Heating mode,

indoor unit will be operated according to the outdoor temperature as below.

Cooling

Cooling Dry

Dry

Compressor stop

When the room

temperature drops

When the room

temperature rises

Ts + 2°C

Ts - 0.5°C

Ts - 1.5°C

Ts + 1°C

Ts - 1.5°C

Ts - 2.5°C

( Fig.4 : Auto changeover : Cooling - Dry ) TR : Room temperature

Ts : Setting temperature

TR : Room temperature

Ts : Setting temperature

( Air flow mode : Auto )

When Heating was selected at , the same operation as HEATING OPERATION of page

01-02 is performed.

When the compressor was stopped for 6 consecutive minutes by the temperature control function

after the Cooling(Auto:Dry) or Heating mode was selected at above, operation is switched

to Monitoring and the operation mode is selected again.

01-04

START

Room temp.

Ts + 2°C?

COOLING (AUTO:DRY)

OPERATION

HEATING OPERATION

YES

AUTO CHANGEOVER operation flow chart

TS: Setting temperature

Room temp.

Ts - 2°C?

Thermostat remains

in OFF state for 6 minutes or

longer?

System stops

or operation command other than

auto changeover operation?

Thermostat remains

in OFF state for 6 minutes or

longer?

System stops

or operation command other than

auto changeover operation?

Middle zone

Operation mode

of outdoor unit : Cooling or Dry?

YES

Operation mode

of outdoor unit : Heating?

YES

Outdoor temperature

25°C?

YES

YESYES

1-5. INDOOR FAN CONTROL

1. Fan speed

( Table 5 : Indoor Fan Speed )

01-05

Operation mode Air flow mode Speed (rpm)

1040

1000

950

800

740

500

300

1040

950

800

740

500

740

300

Dry

Monitoring

Cooling

Fan

Heating

AB*G18LVTB

*Note, during Economy operation and operation mode is Fan, air flow is 1 step downs.

(Hi > Me, Me > Lo, Lo > Quiet, Quiet > Soft Quiet)

Me+

Quiet

Cool air prevention

S-Lo

Quiet

*Soft Quiet

Auto

S-Lo

Operation mode Air flow mode Speed (rpm)

1340

1240

1140

1030

500

1340

1240

1140

1030

500

1030

500

Dry

Monitoring

Cooling

Fan

Heating

AR*G12LLTB

Quiet

S-Lo

Quiet

*Soft Quiet

Auto

S-Lo

Operation mode Air flow mode Speed (rpm)

1560

1400

1240

1030

500

1560

1400

1240

1030

500

1030

500

Dry

Monitoring

Cooling

Fan

Heating

AR*G14LLTB

Quiet

S-Lo

Quiet

*Soft Quiet

Auto

S-Lo

Operation mode Air flow mode Speed (rpm)

1380

1300

1220

1140

600

1380

1300

1220

1140

600

1140

600

Dry

Monitoring

Cooling

Fan

Heating

AR*G18LLTB

Quiet

S-Lo

Quiet

*Soft Quiet

Auto

S-Lo

01-05

*Note, during Economy operation and operation mode is Fan, air flow is 1 step downs.

(Hi > Me, Me > Lo, Lo > Quiet, Quiet > S-Lo)

Operation mode Air flow mode Speed (rpm)

1240

960

850

730

360

730

360

Dry

Monitoring

Cooling

Fan

Heating

AR*G12LSLAP

Quiet

S-Lo

Quiet

Auto

S-Lo

Operation mode Air flow mode Speed (rpm)

1500

1220

1030

730

360

730

360

Dry

Monitoring

Cooling

Fan

Heating

AR*G14LSLAP

Quiet

S-Lo

Quiet

Auto

S-Lo

Operation mode Air flow mode Speed (rpm)

1290

1060

800

730

530

Dry

Monitoring

Cooling

Fan

Heating

AR*G18LSLAP

Quiet

S-Lo

Quiet

Auto

S-Lo

1240

960

850

730

S-Lo S-Lo

1500

1220

1030

730

360

S-Lo

1290

1060

800

730

530

730

530

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