Fujitsu AS*G09LTCB Istruzioni operative

SPLIT TYPE

ROOM AIR CONDITIONER

WALL MOUNTEDtype

Models Indoor unit Outdoor unit

INVERTER

SERVICE

INSTRUCTION

R410A

AS*G09LTCB

AS*G12LTCB

AS*G14LTCB

AO*G09LTCN

AO*G12LTCN

AO*G14LTCN

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. FOUR-WAY VALVE EXTENSION SELECT................................................................

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

15. MANUAL AUTO OPERATION ( Indoor unit body operation ).....................................

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

16. FORCED COOLING OPERATION..............................................................................

17. COMPRESSOR PREHEATING..................................................................................

19. ECONOMY OPERATION............................................................................................

21. OUTDOOR UNIT LOW NOISE OPERATION..............................................................

20. HUMAN SENSOR CONTROL.....................................................................................

01-01

01-02

01-03

01-04

01-06

01-07

01-08

01-09

01-12

01-13

01-14

18. 10°C HEAT OPERATION............................................................................................ 01-14

01-14

01-15

22. POWERFUL OPERATION.......................................................................................... 01-15

23. BASE HEATER OPERATION..................................................................................... 01-15

25. OFF DEFROST OPERATION CONTROL...................................................................

24. DEFROST OPERATION CONTROL........................................................................... 01-16

01-18

26. VARIOUS PROTECTIONS.......................................................................................... 01-19

01-12

3. APPENDING DATA

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

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

3-1-2 Procedures to change the Function Setting for wireless RC..............................

03-01

03-03

3-2 Thermistor Resistance Values.....................................................................................

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

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

03-05

2. TROUBLE SHOOTING

2-1 ERROR DISPLAY.......................................................................................................

2-1-1 INDOOR UNIT AND WIRED REMOTE CONTROLLER DISPLAY.....................

2-1-2 WIRED REMOTE CONTROLLER DISPLAY (OPTION).....................................

2-2 TROUBLE SHOOTING WITH ERROR CODE............................................................

2-3 TROUBLE SHOOTING WITH NO ERROR CODE.....................................................

02-01

02-02

02-03

02-25

2-4 SERVICE PARTS INFORMATION.............................................................................. 02-30

1 . DESCRIPTION OF EACH

CONTROL OPERATION

R410A

WALL MOUNTED type

INVERTER

( Fig.1 : Outdoor temperature zone )

1. COOLING OPERATION

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

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

controls the operation frequency of the compressor.

Minimum

frequency

Maximum

frequency

Maximum

frequency

AS*G09LTCB

AS*G12LTCB

AS*G14LTCB

18rps

15rps

76rps

12rps 63rps

57rps

36°C

A zone

34°C 32°C

B zone

30°C 21°C

C zone

19°C

D zone

Indoor fan mode

Me Lo Quiet

A zone 96rps 61rps 51rps 33rps

B zone 96rps 61rps 51rps 33rps

C zone 96rps 61rps 51rps 33rps

AS*G09LTCB

D zone 57rps 42rps 36rps 27rps

E zone 57rps 42rps 36rps 27rps

F zone 57rps 42rps 36rps 27rps

( Table 1 : Compressor frequency range )

01-01

E zone

F zone

10°C

0°C

12°C

2°C

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

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

However, the maximum frequency is limited in the range shown in Fig.1 based on the indoor

fan mode and the outdoor temperature.

* If the room temperature is some degrees lower than a set temperature,

the compressor will be stopped.

AS*G12LTCB

AS*G14LTCB

A zone 76rps 45rps 37rps 29rps

B zone 76rps 45rps 37rps 29rps

C zone 76rps 45rps 37rps 26rps

D zone 43rps 35rps 26rps 20rps

E zone 51rps 37rps 31rps 22rps

F zone 51rps 37rps 31rps 22rps

A zone 91rps 44rps 34rps 24rps

B zone 91rps 44rps 34rps 24rps

C zone 72rps 34rps 24rps

D zone 52rps 30rps 21rps 18rps

E zone 63rps 34rps 27rps 19rps

F zone 63rps 34rps 27rps 19rps

44rps

Outdoor

temperature drops

Outdoor

temperature rises

( Table 2 : Limit of maximum speed based on outdoor temperature )

96rps

76rps

91rps

Outdoor

temp. zone Hi

* If the room temperature is 2°C higher than a set temperature, the compressor operation

frequency will attain to maximum performance.

When the compressor operates for 30 minutes continuously at over the maximum frequency ,

the maximum frequency is changed from Maximum Frequency to Maximum Frequency .

2. HEATING OPERATION

A sensor (room temperature thermistor) built in the indoor unit body 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 by 3°C than a set temperature, the compressor operation

frequency will attain to maximum performance.

* If the room temperature is some degrees higher than a set temperature,

the compressor will be stopped.

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

the compressor frequency is controlled within the range shown in Table 3.

However, the maximum frequency is limited shown in Table 4 based on the fan mode.

( Table 3 : Compressor frequency range )

01-02

Minimum

frequency

Maximum

frequency

AS*G09LTCB 18rps 130rps

AS*G12LTCB 16rps 119rps

AS*G14LTCB 16rps 140rps

3. DRY OPERATION

The compressor frequency shall change according to the temperature, set temperature,

and room temperature variation which the room temperature sensor of the indoor unit body has

detected as shown in the Table 4.

However, after the compressor is driven, the indoor unit shall run at operation frequency of

61rps (09LTCB), 51rps (12LTCB), 52rps (14LTCB) for 60 seconds.

Ts+0.5°C

Ts -1.5°C

Ts -0.5°C

Ts+1.5°C

( Table 4 : Compressor frequency in Dry mode)

( Fig.2 : Compressor control based on room temperature )

Operating

frequency

33rps

25rps

0rps

09LTCB X zone

J zone

Y zone

Operating

frequency

J zone

Y zone

X zone 26rps

18rps

0rps

12LTCB

Operating

frequency

J zone

Y zone

X zone 24rps

16rps

0rps

14LTCB

X zone

J zone

Y zone

Room

temperature drops

Room

temperature rises

4. AUTO CHANGEOVER OPERATION

01-03

(Fig. 3 : Operation flow chart in Auto changeover)

START

Room temp.

>Ts+2°C ?

COOLING OPERATION

HEATING OPERATION

YES

TS: Setting temperature

<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?

YES

When the air conditioner is set to the AUTO mode by remote control, operation starts in the optimum

mode from among the Heating, Cooling, Dry and Monitoring modes.

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.

5. INDOOR FAN CONTROL

The airflow can be switched in 5 steps such as Auto, Quiet, Lo, Me, Hi, while the indoor fan only runs.

When fan mode is set at [Auto], it operates on [Me] fan Speed.

01-04

2. FAN OPERATION

3. COOLING OPERATION

Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature,

as shown in Figure4.

On the other hand, if switched in [Hi] [Quiet], the indoor motor will run at a constant airflow of [Cool]

operation modes Quiet, Lo, Me, Hi, as shown in Table 5.

( Fig.4 : Airflow change - over ( Cooling : Auto ) )

When the room

temperature rises

When the room

temperature drops

TR : Room temperature

Ts : Setting temperature

TR-Ts > 2°C

1°C > TR-Ts

2°C > TR-Ts > 1°C

TR-Ts > 2.5°C

1.5°C > TR-Ts

2.5°C > TR-Ts > 1.5°C

Hi mode

Me mode

Lo mode

1. Fan speed

( Table 5 : Indoor fan speed )

Operation mode Air flow mode

Speed (rpm)

Cooling/ Fan

Heating

Dry X zone: 650

J zone: 610

X zone: 650

J zone: 610

X zone: 740

J zone: 710

AS*G09LTCB AS*G12LTCB AS*G14LTCB

4. DRY OPERATION

Refer to the Table 5.

During the dry mode operation, the fan speed setting can not be changed.

Me+

Quiet

S-Lo

Cool air prevention

Powerful

1410

1300

1220

1120

960

650

610

570

1470

1370

1260

1180

960

650

610

570

1620

1510

1440

1220

1030

790

610

570

1410

1300

1080

960

650

1470

1370

1120

960

650

1550

1440

1220

980

740

The maximum value of the indoor fan speed is set as shown in Fig.6 based on the detected

temperature by the indoor heat-exchanger sensor on heating mode.

( Fig.6 : Cool air prevension control )

01-05

5. HEATING OPERATION

Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature,

as shown in Fig. 5

On the other hand, if switched in [Hi] [Quiet], the indoor motor will run at a constant airflow

of [Heat] operation modes Quiet, Lo, Me, High, as shown in Table 6.

6. COOL AIR PREVENTION CONTROL (Heating mode)

( Fig.5 : Airflow change - over ( Heating : Auto ) )

TR-Ts > -1.5°C

-2.5°C > TR-Ts

-1.5°C > TR-Ts > -2.5°C

TR-Ts > -1°C

-2°C > TR-Ts

-1°C > TR-Ts > -2°C

When the room

temperature rises When the room

temperature drops

TR : Room temperature

Ts : Setting temperature

Lo mode

Me mode

Me+ mode

42°C

30°C

34°C

Indoor heat exchanger

temperature rises Indoor heat exchanger

temperature drops

Me+

Cool air

prevention

39°C

37°C

32°C

28°C

S-Lo

Switch the airflow [Auto] at cooling mode, and the indoor fan motor will run as shown in Fig.7.

7. MOISTURE RETURN PREVENTION CONTROL (Cooling mode& Dry mode)

( Fig.7 : Indoor fan control )

Compressor

OFF

Indoor fan

Setting air flow

Indoor fan

(as shown in Table 6)

S-Lo

OFF

10 30 60 180 60 180 60 10 30

(sec)

( Table 6 : Indoor fan speed )

X zone J zone

AS*G09/12LTCB 650rpm 610rpm

Y zone

0 570rpm 650rpm

AS*G14LTCB 740rpm 710rpm 0 570rpm 740rpm

Dry Cooling

42°C

30°C

34°C

Indoor heat exchanger

temperature rises Indoor heat exchanger

temperature drops

Powerful

Cool air

prevention

39°C

37°C

32°C

28°C

S-Lo

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