Fujitsu AS*A09LKC, AS*A12LKC, AO*R12LKC, AO*R09LKC Service Instructions Manual

SPLIT TYPE
ROOM AIR CONDITIONER

WALL MOUNTED

type

Models Indoor unit Outdoor unit

AS*A09LKC
AS*A12LKC

AO*R09LKC
AO*R12LKC

INVERTER

SERVICE

INSTRUCTION

R410A

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..............................................................................

18. COIL DRY OPEARTION CONTROL...........................................................................

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

19. DEFROST OPERATION CONTROL...........................................................................

21. VARIOUS PROTECTIONS..........................................................................................

20. OFF DEFROST OPERATION CONTROL...................................................................

01-01

01-02

01-03

01-04

01-05

01-07

01-08

01-09

01-10

01-12

01-12

01-12

01-12

01-13

01-13

01-13

01-13

01-14

01-16

01-17

01-12

2. TROUBLE SHOOTING

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

2-1-1 INDOOR UNIT AND WIRED RMOTE CONTROLLER DISPLAY (OPTION)......

3. APPENDING DATA

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

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

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

1. Jumper setting of Indoor unit and Outdoor unit.............................................................

3. Thermistor Resistance Values.......................................................................................

2. Outdoor unit Pressure Value and Total Electric Current Curve.....................................

03-01

03-02

03-04

02-01

02-01

02-02

02-03

02-24

2-4 SERVICE PARTS INFORMATION.............................................................................. 02-29

1 . DESCRIPTION OF EACH
CONTROL OPERATION

R410A

WALL MOUNTED type

INVERTER

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

1. COOLING OPERATION

1-1 COOLING CAPACITY CONTROL

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 2°C higher than a set temperature, the compressor operation
frequency will attain to maximum performance.

minimum
frequency

maximum
frequency

maximum
frequency

AS*A09LKC 22Hz 76Hz 79Hz

AS*A12LKC 18Hz 80Hz 96Hz

Outside air Outside air
temperature temperature

36°C

A zone

34°C

32°C

B zone

30°C

21°C

C zone

19°C

D zone

Hi Me Lo Quiet

A zone 79Hz 61Hz 52Hz 37Hz

B zone 79Hz 61Hz 52Hz 37Hz

C zone 79Hz 61Hz 52Hz 38Hz

09LKC

D zone 52Hz 43Hz 37Hz 28Hz

A zone 96Hz 61Hz 51Hz 33Hz

B zone 96Hz 61Hz 51Hz 33Hz

C zone 96Hz 61Hz 51Hz 33Hz

12LKC

D zone 57Hz 42Hz 36Hz 27Hz

( Table 1 : Compressor Frequency Range )

When the compressor operates for 30 minutes continuously at over the maximum frequency ,
the maximum frequency is changed from Maximum Frequency to Maximum Frequency .

01-01

* 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 Figure 1 based on the
fan speed mode and the outdoor temperature.

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

2. HEATING OPERATION

2-1 HEATING CAPACITY CONTROL

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 higher 2.5°C than a set temperatire, 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 Table2.
However, the maximum frequency is limited in the range shown in Figure 2 based on the
fan speed mode and the outdoor temperature.

( Table 2 : Compressor Frequency Range )

( Fig.2 : Limit of Maximum Frequency based on Outdoor Temperature )

* The room temperature is controlled 2°C higher than the setting temperature for 60 minutes
after starting the operation.
After 60 minutes, it is controlled based on the normal setting temperature.

01-02

minimum
frequency

maximum
frequency

AS*A09LKC 22Hz 99Hz

AS*A12LKC

18Hz 130Hz

Hi Me+ Lo Quiet

AA zone

99Hz 99Hz 79Hz 67Hz

A zone

99Hz 99Hz 79Hz 67Hz

B zone

99Hz 99Hz 79Hz 56Hz

09LKC

C zone

AA zone

A zone

B zone

C zone

99Hz 99Hz 79Hz 46Hz

130Hz 130Hz 80Hz 68Hz

130Hz 130Hz 80Hz 68Hz

130Hz 130Hz 80Hz 54Hz

130Hz 130Hz

Me

96Hz

96Hz

96Hz

96Hz

96Hz

96Hz

96Hz

96Hz 80Hz 45Hz

12LKC

Outside air Outside air
temperature temperature

19°C

C zone

B zone

A zone

AA zone

17°C

14°C

12°C

7°C

5°C

3. DRY OPERATION

3-1 INDOOR UNIT CONTROL

The compressor rotation 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 3.
However, after the compressor is driven, the indoor unit shall run at operation frequency of
70Hz (for AS*A09LKC) or 56Hz (for AS*A12LKC) , for a minute.

Ts+0.5°C

Ts -1.5°C

Ts -0.5°C

Ts+1.5°C

( Table 3 : Compressor frequency )

( Table 4 : Indoor fan speed )

( Fig.3 : Compressor Control based on Room Temperature )

( Fig.4 : Indoor Fan Control )

01-03

Operating
frequency

37Hz

28Hz

0Hz

09LKC

X zone

J zone

Y zone

Operating
frequency

J zone

Y zone

X zone

33Hz

25Hz

0Hz

12LKC

Room Room
temperature temperature

X zone

J zone

Y zone

Compressor

ON

OFF

Indoor fan
Setting air flow

Indoor fan
(as shown in Table 4)

S-Lo

OFF

10 30 60 180 60 180 60 10 30

(SEC)

X zone J, Y zone

AS*A09LKC 620rpm 600rpm

AS*A12LKC 620rpm 600rpm

4. AUTO CHANGEOVER OPERATION

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.

When operation starts, only the indoor and outdoor fans are operated for 1 minute. After 1 minute,

the room temperature and outside air temperature are sensed and the operation mode is
selected in accordance with the table below.

C zone

32°C

B zone

-10°C
A zone

( Table.5 Operation mode selection table)

Outside air temperature (TO)

Room temperature (TB)

A zone B zone C zone

TB > TS+2°C

Monitoring

Cooling

(automatic dry)

Cooling

(automatic dry)

TS+2°C TB TS - 2°C

Monitoring Monitoring Monitoring

TB TS- 2°C Heating Heating Monitoring

When COOLING was selected at , the air conditioner operates as follow:

The same operation as COOLING OPERATION of item 1 above is performed.

When the room temperature has remained at (set temperature -1°C) for 8 minutes, operation is

automatically switched to DRY and the same operation as DRY OPERATION of item 3 above
is performed.

If the room temperature reaches (set temperature +2°C during DRY operation, operation returns to
COOLING operation.

When HEATING was selected at , the same operation as HEATING OPERATION of item 2
above 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

<

1

2

3

1

4

1

( Fig.5 : Outside air temperature zone selection )

01-04

5. INDOOR FAN CONTROL

The airflow can be switched in 5 steps such as AUTO, QUIET, LOW, MED, HIGH,
while the indoor fan only runs.
When Fan mode is set at (Auto), it operates on (MED) Fan Speed.

01-05

1. Fan speed

2. FAN OPERATION

( Table 6 : Indoor Fan Speed )

AS*A09 / 12LKC

Operation mode Air flow mode Speed (rpm)

1440
1370
1200

980

Cooling

Hi

Hi

670
600
480

1400

Me+
Me

Me

Heating

Lo

Lo

1200

920

Quiet

Quiet

620

Dry

S-Lo

X zone: 620

J zone: 600

Cool air prevention

3. COOLING OPERATION

Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 6.
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 6.

( Fig.6 : Airflow change - over ( Cooling : AUTO ) )

When the room
temperature rises

When the room
temperature drops

TR : Room temperature
Ts : Setting temperature

TR-Ts > 2 degC

=

1 degC > TR-Ts

2 degC > TR-Ts > 1 degC

=

TR-Ts > 2.5 degC

=

1.5 degC > TR-Ts

2.5 degC > TR-Ts > 1.5 degC
=

HIGH mode

MED mode

LOW mode

Indoor heat exchanger Indoor heat exchanger
temperature temperature

47°C

Hi

40°C

Me+

37°C

Lo

Cool air prevention

30°C

S-Lo

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.

(Fig.8 : Cool Air Prevention Control)

01-06

40°C

28°C

32°C

34°C

5. HEATING OPERATION

Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 7.

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 6.

6. COOL AIR PREVENTION CONTROL (Heating mode)

4. DRY OPERATION

Refer to the Table 6.
During the dry mode operation, the fan speed setting can not be changed.

( Fig.7 : 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

LOW mode

MED mode

MED+ mode

42°C

Hi

39°C

Me+

37°C

Lo

Cool air prevention

30°C

S-Lo

35°C

28°C

31°C

33°C

AS*A09LKC

AS*A12LKC

6. OUTDOOR FAN CONTROL

Cooling Dry Heating

AS*A09LKC

AS*A12LKC

730/ 650/ 470

860/ 760/ 470

860/ 470/ 330

730/ 470/ 230

( Table 8 : Outdoor fan speed )

*

The outdoor fan speed mentioned avobe depends on the compressor frequency.
(When the compressor frequency increases, the outdoor fan speed also changes to the higher
speed. When the compressor frequescy decreases, the outdoor fan speed also changes to the
lower speed.)

*

It runs at 500(A-D ZONE)rpm for 20 seconds after starting up the outdoor fan.

*

After the defrost control is operated on the heating mode, the fan speed keeps at the higher speed
as table 9 without relating to the compressor frequency.

01-07

A - C

D
A - C

D

ZONE

730/ 470

760/ 470

650/ 470

760/ 680/ 470

Refer to Fig1.

(rpm)

( Table 9 : Outdoor fan speed after the defrost )

1. Outdoor Fan Motor

2. Fan Speed

AC Motor DC Motor

AS*A09/ 12LKC

Following table shows the type of the outdoor fan motor. The control method is different
between AC motor and DC motor.

( Table 7 : Type of Motor )

Min

AS*A09/ 12LKC 900rpm

7. LOUVER CONTROL

1. VERTICAL LOUVER CONTROL

2. SWING OPERATION

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 heating range for more than 30minutes, 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)

(Fig 9: Air Direction Range)

(Operation 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.

01-08

8. COMPRESSOR CONTROL

1. OPEARTION FREQUENCY RANGE

The operation frequency of the compressor is different based on the operation mode as
shown in the table 10.

Cooling Heating

Min Max Min Max Min Max

Dry

AS*A09LKC

AS*A12LKC

22Hz 79Hz 22Hz 99Hz 28Hz 37Hz

18Hz 96Hz 18Hz 130Hz 25Hz 33Hz

AS*A09LKC

AS*A12LKC

70Hz 82Hz 92Hz 96Hz 96Hz 96Hz

56Hz 74Hz 87Hz 97Hz 108Hz 119Hz

80sec 60sec 60sec 180sec 60sec 60sec

80sec 60sec 60sec 180sec 60sec 60sec

(Table 10 : Compressor Operation Frequency Range)

2. OPEARTION FREQUENCY CONTROL AT START UP

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

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

Time

Time Time Time

Time

Time

(Frequency)

(Time)

Frequency

Frequency

Frequency Frequency

Frequency

Frequency

Time Time

Time Time Time Time

Frequency

Frequency

Frequency

Frequency

Frequency

Frequency

01-09

AS*A09LKC

AS*A12LKC

9. TIMER OPEARTION CONTROL

1. OPEARTION FREQUENCY RANGE

The table 11 shows the available timer setting based on the product model.

ON TIMER / OFF TIMER SLEEP TIMER

AS*A09 / 12LKC

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

(Table 11 : Timer Setting)

01-10

2. SLEEP TIMER

If the sleep 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 )

Ts

Stop of operation

In the cooling operation mode

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

Ts

+1°C

+2°C

Set

60min

In the heating operation mode

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

- 4°C

- 3°C

- 2°C

- 1°C

Set

30min

30min

30min

01-11

10. ELECTRONIC EXPANSION VALVE CONTROL

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, the
indoor heat exchanger sensor, the outdoor heat exchanger sensor,
and the outdoor temperature sensor.

The pulse range of the electronic expansion valve control is between 60 to 480 pulses.

The expansion valve is set at 480 pulses after 110 seconds of stopping compressor.

At the time of supplying the power to the outdoor unit, the initialization of the electronic
expansion valve is operated (528 pulses are input to the closing direction).

11. TEST OPERATION CONTROL

Under the condition where the air conditioner runs, press the test run button of the remote
control, 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.

The compressor won't enter operation status for 2 minutes and 20 seconds after the compressor is
stopped, even if any operation is given.

At the time when the air conditioner is switched from the cooling mode to heating mode, the
compressor is stopped, and the four-way valve is switched in 2 minutes and 20 seconds later after
the compressor stopped.

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 started with
the memorized operation contents.
When the power is interrupted and recovered during timer operation, since the timer operation time
is shifted by the time the power was interrupted, an alarm is given by blinking (7 sec ON/2 sec OFF)
the indoor unit body timer lamp.

[Operation contents memorized when the power is interrupted]

Operation mode
Set temperature
Set air flow
Timer mode and timer time
Set air flow Direction
Swing

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

13. FOUR-WAY VALVE EXTENSION SELECT

14. AUTO RESTART

01-12

Econmy

15. MANUAL AUTO OPERATION (Indoor unit body operation)

If MANUAL AUTO Button is set, the operation is controlled as shown in Table 12.
If the remote control is lost or battery power dissipated, this function will work without the remote control.

OPERATION MODE Auto changeover
FAN CONT. MODE Auto
TIMER MODE Continuous
SETTING TEMP. 24°C
SETTING LOUVER Standard
SWING OFF

When the outdoor heat exchanger temperature is lower than 5°C and the heating operation has
been stopped for 30 minutes, 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 7°C or greater,
preheating is ended.

AS*A09LKC

AS*A12LKC

780rpm 43Hz

780rpm 39Hz

(Table 12)

(No timer setting available)

17. COMPRESSOR PREHEATING

18. COIL DRY OPERATION CONTROL

The coil-dry operation functions by pressing COIL DRY button on the remote controller.
The coil-dry operation is consisted of Fan operation 50 minutes, Heating operation 3 minutes,
and Fan operates for 30 minutes at last before ending the air conditioner operation.

(Table 13 : COIL-DRY Operating Functions)

Indoor Fan Speed

Compressor
Frequency

Louver
Position

01-13

Forced cooling operation

Cooling

16. FORCED COOLING OPERATION

Forced cooling operation is started when pressing MANUAL AUTO button for 10 seconds or more.
During the forced cooling operation, it operates regardless of room temperature sensor.
Operation LED and timer LED blink during the forced cooling operation. They blink for 1 second ON
and 1 second OFF on both operation LED and timer LED (same as test operation).
Forced cooling operation is released after 60 minutes of starting operation.
The FORCED COOLING OPERATION will start as shown in Table12.

Hi

Horizontal
OFF

Room Temp is not controlled

Manual auto operation

-

19. DEFROST OPERATION CONTROL

1. CONDITION OF STARTING THE DEFROST OPERATION

The defrost operation starts when the outdoor heat exchanger temperature sensor detects
the temperature lower than the values shown in Table 14.

(Table 14 : Condition of starting Defrost Operation)

AS*A09 / 12LKC

Less than 25 minutes

25 minutes to
4 hours

Does not operate

Compressor operating time

After 4 hours

- 6°C - 3°C

2. CONDITION OF THE DEFROST OPERATION COMPLETION

Defrost operation is released when the conditions become as shown in Table 15.

(Table 15 : Defrost Release Condition)

Release Condition

Outdoor heat exchanger temperature sensor value is higher than
16°C or Compressor operation time has passed 15 minutes.

01-14

AS*A09 / 12LKC

Defrost Flow Chart

The defrosting shall proceed by the integrating operation time
and outdoor heat exchanger temperature as follows.

(Not defrosted for 10 minutes)

Compressor OFF
Outdoor fan motor OFF
30 sec later 4 - way valve OFF
36 sec later compressor ON

Heating operation start : Compressor ON

Outdoor heat exchanger temperature:
Over 16°C or
Compressor ON time: Over 15 minutes

01-15

Compressor integrating
operation:
Over 25 minutes to
below 240 minutes

Compressor integrating
operation:
Over 240 minutes

Outdoor heat exchanger
temperature:
Below - 6°C

Outdoor heat exchanger
temperature:
Below - 3°C

Defrost start

Defrost Indicator:
[Operation lamp]
7 sec ON / 2 sec OFF

Defrost end

20. OFF DEFROST OPEARTION CONTROL

1. OFF DEFROST OPERATION CONDITION

When operation stops in the [Heating operation] mode, if frost is adhered to the outdoor unit heat
exchanger, the defrost operation will proceed automatically. In this time, if indoor unit operation
lamp flashes slowly (7 sec ON / 2 sec OFF), the outdoor unit will allow the heat exchanger to defrost,
and then stop.

In heating operation, the outdoor heat exchanger temperature is less than -4°C, and
compressor operation integrating time lasts for more than 30 minutes.

AS*A09/ 12LKC

OFF Defrost Flow Chart

Heating operation stop

Outdoor heat exchanger temperature:
Below -4°C
and
Compressor integrating operation:
Over 30 minutes

Defrost start

Defrost Indicater:
[Operation lamp]
7 sec ON / 2 sec OFF

Outdoor heat exchanger temperature:
Over 16°C or
Compressor ON time: Over 15 minutes

Defrost end

2. OFF DEFROST END CONDITION

Release Condition

Outdoor heat exchanger temperature sensor value is higher than 16°C or
Compressor operation time has passed 15 minutes.

01-16

21. VARIOUS PROTECTIONS

1. DISCHARGE GAS TEMPERATURE OVERRISE PREVENSION CONTROL

The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas
temperature.

AS*A09 / 12LKC

104°C 101°C 110°C

When the discharge temperature becomes higher than Temperature ,the compressor frequency
is decreased 20 Hz, and it continues to decrease the frequency for 20 Hz every 120 seconds until
the temperature becomes lower than Temperature .

When the discharge temperature becomes lower than Temperature ,the control of the control of the
compressor frequency is released.

When the discharge temperature becomes higher than Temperature ,the compressor is stopped
and the indoor unit LED starts blinking.

(Table 16 : Discharge Temperature Over Rise Prevension Control / Release Temperature)

Temperature

Temperature

Temperature

2. CURRENT RELEASE CONTROL

The compressor frequency is controlled so that the outdoor unit input current does not exceeds
the current limit velue that was set up with the outdoor temperature.
The compressor frequency returns to the designated frequency of the indoor unit at the time
when the frequency becomes lower than the release value.

(Table 17 : Current Release Operation Value / Release Value)

01-17

[ Heating ]

OT (Control / Release)

5.0A/ 4.5A

5.0A/ 4.5A

5.0A/ 4.5A

5.0A/ 4.5A

5.5A/ 5.0A

7.0A/ 6.5A

7.5A/ 7.0A

8.5A/ 8.0A

17°C

12°C

OT : Outdoor Temperature

5°C

AS*A09LKC

OT (Control / Release)

17°C

12°C

OT : Outdoor Temperature

5°C

AS*A12LKC

OT (Control / Release)

3.5A/ 3.0A

4.0A/ 3.5A

5.0A/ 4.5A

4.0A/ 3.5A

5.0A/ 4.5A

6.0A/ 5.5A

46°C

42°C

OT : Outdoor Temperature

AS*A09LKC

OT (Control / Release)

46°C

42°C

OT : Outdoor Temperature

AS*A12LKC

[ Cooling ]

3. ANTIFREEZING CONTROL (Cooling and Dry mode)

The compressor frequency is decrease on cooling & dry mode when the indoor heat exchanger
temperature sensor detects the temperature lower than Temperature .
Then, the anti-freezing control is released when it becomes higher than Temperature .

(Table 18 : Anti-freezing Protection Operation / Release Temperature)

4. COOLING PRESSURE OVERRISE PROTECTION

When the outdoor unit heat exchange sensor temperature rises to 67°C or greater,
the compressor is stopped and trouble display is performed.

5. HIGH TEMPERATURE RELEASE CONTROL ( HEATING MODE )

On heating mode, the compressor frequency is controlled as following based on the
detection value of the indoor heat exchanger temperature sensor.

01-18

[ AS*A09LKC ]

[ AS*A12LKC ]

52Hz or greater 49Hz

48Hz or greater 45Hz

43 49Hz

45Hz

34 40Hz 28Hz

27 36Hz 18Hz

22 28Hz OFF

OFF

Indoor heat exchange
temperature

[ Control System ]

Refer to below

It returns to the normal operation

Compressor Operation

25Hz

39

Frequency down every 120 sec

Frequency down every 120 sec

55°C

53°C

52°C

50°C

4°C

7°C

Temperature Temperature

The compressor frequency is
decreased 3Hz every 60seconds.

2 . TROUBLE SHOOTING

R410A

WALL MOUNTED type

INVERTER

2. TROUBLE SHOOTING

02-01

2-1 ERROR DISPLAY

2-1-1 INDOOR UNIT AND WIRED RMOTE CONTROLLER DISPLAY

1. ERROR DISPLAY
Please refer the blinking pattern as follows.

Indoor Unit : AS*A09LKC, AS*A12LKC

The OPERATION, TIMER lamps operate as follows according to the error contents.

0.5s ON / 0.5s OFF (Flash) : OFF

Error contents

Indoor Unit display

Operation

(Green)

Timer

(Orange)

Trouble

shooting

Serial error (Serial reverse transfer error)

Serial error (Serial forward transfer error)

Wired remote controller error

2 times
3 times

4 times
5 times

1

2

3

4

5

Room temperature thermistor error 2 times

8 times

Indoor heat exchanger temperature thermistor (Middle) error

2 times

3 times

Outdoor discharge pipe temperature thermistor error 2 times

Outdoor heat exchanger temperature thermistor error 3 times

6

7

Outdoor temperature thermistor error 4 times

8

3 times

Manual auto switch error 2 times

10

4 times

11

Over current protection 2 times

12

CT error 3 times

13

Compressor location ditection error 5 times

14

Outdoor unit fan error

5 times

6 times

15

Indoor fan motor lock error

6 times

2 times

15

Indoor fan motor rev. error 3 times

16

Discharge temperature error 2 times

17

Exessive high pressure protection on cooling 3 times

18

7 times

8 times

Model distinction error (Indoor)

19

20

0.1s ON / 0.1s OFF (Flash)

Power supply frequency detection error 4 times

Active filter error

Wired Rmote

Controller

Display
(option)

01

13

00

02

04

0C

06

0A

20

No Display

17

18

1A

1b

12

12

0F

24

19

11

2 times
3 times

4-way valve error

PFC circuit error

4 times

4 times

25

9

21

2C

02-02

When "EE" in Temperature Display is displayed, inspection of the air conditioning system is necessary.
Please consult authoilzed service personnel.

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

1. SELF - DIAGNOSIS

SU MOTUWETH FR SA

Unit number (usually 0)

Error code

ex. Self-diagnosis check

2. ERROR CODE HISTORY DISPLAY

Up to 16 memorized error codes may be displayed for the indoor unit connected to the remote controller.

1. Stop the air conditioner operation.

2. Press the SET TEMPERATURE buttons , simultaneously for 3 seconds
or more to start the self-diagnosis.

4. Press the SET TEMPERATURE buttons , simultaneously for 3 seconds or more
or there is no key input for 60 seconds to stop the display.

3. Press the SET TEMPERATURE button to select the error history number.

SU MOTU WETH FR SA

Error code

Error history number

0 1 2 3 4 5 6 7
F E d c b A 9 8





Lower

Raise

Trouble shooting 1
OUTDOOR UNIT Error Method:

Detective Actuators: Detective details:

Forecast of Cause:

OK

Indicate or Display:

Refer to error code table.

YESYES

NO

OK

Serial Error
(Serial Reverse Transfer Error)

Outdoor Unit Inverter PCB

1. Connection failure 2. External cause 3. Inverter PCB failure

Check Point 1-1 : Reset the power and operate

Does error indication reappear?

Check Point 1-2 : Check external cause such as noise

Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).

Check Point 2 : Check connection

Check any loose or removed connection line of
between indoor unit and outdoor unit.

>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data &
Technical Manual.

Check connection condition in control unit.
(If there is loose connector, open cable or mis-wiring)

Check Point 3 : Check the voltage of power supply

Check the voltage of power supply

>> Check if AC198(AC220V-10%) - 264V(AC240V+10%) appears
at outdoor unit terminal L - N.

Check Point 4 : Check serial signal (Reverse transfer signal)

Check serial signal (Reverse transfer signal)

>> Check if indicated value swings between AC70V and AC130V at outdoor unit terminal N - 3.
>> If it is abnormal, replace Inverter PCB.

When the indoor unit cannot properly receive the serial signal from
outdoor unit for 10 seconds or more.

02-03

L

N

3

WHITE

BLACK

+

-

2-2 TROUBLE SHOOTING WITH ERROR CODE

RED

Trouble shooting 2
INDOOR UNIT Error Method:

Detective Actuators: Detective details:

Forecast of Cause:

OK

Indicate or Display:

Refer to error code table.

YESYES

NO

OK

Serial Error
(Serial Forward Transfer Error)

Indoor Unit Controller PCB

1. Connection failure 2. External cause 3. Controller PCB failure

Check Point 1-1 : Reset the power and operate

Does error indication reappear?

Check Point 1-2 : Check external cause such as noise

Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).

Check Point 2 : Check connection

Check any loose or removed connection line of
between indoor unit and outdoor unit.

>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data &
Technical Manual.

Check connection condition in control unit.
(If there is loose connector, open cable or mis-wiring)

Check Point 3 : Check the voltage of power supply

Check the voltage of power supply

>> Check if AC198(AC220V-10%) - 264V(AC240V+10%) appears
at outdoor unit terminal L - N.

Check Point 4 : Check serial signal (Forward transfer signal)

Check serial signal (Forward transfer signal)

>> Check if indicated value swings between AC70V and AC130V at outdoor unit terminal N - 3.
>> If it is abnormal, replace Controller PCB .

When the indoor unit cannot properly receive the serial signal from
outdoor unit for 10 seconds or more.

02-04

L

N

3

WHITE

BLACK

+

-

RED

Trouble shooting 3
INDOOR UNIT Error Method:

Detective Actuators: Detective details:

Forecast of Cause:

Check Point 2 : Check Wired Remote Controller and Controller PCB

Check Point 1 : Check the connection of terminal

OKOK

Indicate or Display:

Wired Remote Controller Error

Indoor unit Controller PCB
Wired Remote Controller(Option)

1. Connection failure 2. Wired Remote Controller failure 3. Controller PCB failure

Check & correct the followings.
Check the connection of terminal between Wired Remote Controller and indoor unit,
and check if there is a disconnection of the cable.

Check voltage at connector of Wired Remote Controller of Controller PCB. (Power supply to Wired Remote Controller)
>> CN8, 1 - 3 pin

If it is DC12V, Wired Remote Controller is failure. (Controller PCB is normal)

>> Replace Wired Remote Controller (Option)

If it is DC 0V, Controller PCB is failure.

>> Replace Controller PCB.

When the indoor unit cannot properly receive the signal from
Wired Remote Controller for 1 minute or more.

02-05

Refer to error code table.

Trouble shooting 4
INDOOR UNIT Error Method:

Indicate or Display:

Detective Actuators: Detective details:

Forecast of Cause :

Check Point 2 : Remove connector and check thermistor resistance value

Check Point 1 : Check connection of connector

Check Point 3 : Check voltage of Controller PCB (DC5.0V)

OK

OK

6.51

35

8.04

30

10.012.515.820.225.933.6Resistance value (k )

2520151050

Temperature (°C )

3.594.355.30Resistance value (k )

504540Temperature (°C )

Room Temperature Thermistor Error

Indoor Unit Controller PCB
Room Temperature Thermistor

When Room Temperature Thermistor open or short-circuit is
detected at power ON.

1. Connector connection failure 2.Thermistor failure 3. Controller PCB failure

Check if connector is removed.
Check if connector is erroneous connection.
Check if thermistor cable is open.

>> Upon correcting the removed connector or mis-wiring, reset the power.

Thermistor characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

Make sure circuit diagram of indoor unit and check terminal voltage at thermistor (DC5.0V)

If the voltage does not appear, replace Controller PCB.

02-06

Refer to error code table.

CN4

THERMISTOR
( ROOM TEMP. )

THERMISTOR
( PIPE TEMP. )

1

4

2

3

1

4

2

3

BLACK

BLACK

BLACK

BLACK

Trouble shooting 5
INDOOR UNIT Error Method:

Indicate or Display:

Detective Actuators: Detective details:

Forecast of Cause :

Check Point 2 : Remove connector and check thermistor resistance value

Check Point 1 : Check connection of connector

OK

OK

31.7

35

39.6

30

49.762.980.3103134176

Resistance value (k )

2520151050

Temperature (°C )

17.120.825.6

Resistance value (k )

504540

Temperature (°C )

Indoor Heat Exchanger Temperature
Thermistor (Middle) Error

Indoor Unit Controller PCB
Heat Exchanger Temperature Thermistor (Middle)

When Heat Exchanger Temperature Thermistor (Middle) open or
short-circuit is detected at power ON.

1. Connector connection failure 2.Thermistor failure 3. Controller PCB failure

Check if connector is removed.
Check if connector is erroneous connection.
Check if thermistor cable is open.

>> Upon correcting the removed connector or mis-wiring, reset the power.

Thermistor characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

02-07

Refer to error code table.

Check Point 3 : Check voltage of Controller PCB (DC5.0V)

Make sure circuit diagram of indoor unit and check terminal voltage at thermistor (DC5.0V)

If the voltage does not appear, replace Controller PCB.

CN4

THERMISTOR
( ROOM TEMP. )

THERMISTOR
( PIPE TEMP. )

1

4

2

3

1

4

2

3

BLACK

BLACK

BLACK

BLACK

Trouble shooting 6
OUTDOOR UNIT Error Method:

Indicate or Display:

Detective Actuators: Detective details:

Forecast of Cause :

OKOK

OKOK

17.826.3

20

40.063.079.0101130168Resistance value (k )

151050Temperature (°C )

12.3

30 5040 60

2.03.44.66.38.7Resistance value (k )

120100908070Temperature (°C )

Outdoor Discharge Pipe Temperature
Thermistor Error

Outdoor Unit Inverter PCB
Discharge Pipe Temperature Thermistor

When Discharge Pipe Temperature Thermistor open or short-circuit
is detected at power ON or while running the compressor.

1. Connector connection failure 2. Thermistor failure 3. Inverter PCB failure

Check Point 1 : Check connection of connector

Check if connector is removed.
Check if connector is erroneous connection.
Check if thermistor cable is open.

>> Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Remove connector and check thermistor resistance value

Thermistor characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

Check Point 3 : Check voltage of Inverter PCB (DC5.0V)

Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor (DC5.0V)

If the voltage does not appear, replace Inverter PCB.

02-08

Refer to error code table.

CN61 CN62

THERMISTOR
( DISCHARGE PIPE )

THERMISTOR
( HEAT EXCHANGER )

THERMISTOR
( OUTDOOR TEMP. )

1

4

2

3

1

4

2

3

1
2
3

1
2
3

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

CN71 CN70

THERMISTOR
( DISCHARGE PIPE )

THERMISTOR
( HEAT EXCHANGER )

THERMISTOR
( OUTDOOR TEMP. )

1

4

2

3

1

4

2

3

1
2
3

1
2
3

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

AO*R09LKC AO*R12LKC

Trouble shooting 7
OUTDOOR UNIT Error Method:

Indicate or Display:

Detective Actuators: Detective details:

Forecast of Cause :

OKOK

OKOK

3.844.77

15

5.987.569.6316.121.027.8Resistance value (k )

100-5-10Temperature (°C )

20

3025

Outdoor Heat Exchanger Temperature
Thermistor Error

Outdoor Unit Inverter PCB
Heat Exchanger Temperature Thermistor

When Heat Exchanger Temperature Thermistor (Out) open or
short-circuit is detected at power ON or while running the compressor.

1. Connector connection failure 2. Thermistor failure 3. Inverter PCB failure

Check Point 1 : Check connection of connector

Check if connector is removed.
Check if connector is erroneous connection.
Check if thermistor cable is open.

>> Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Remove connector and check thermistor resistance value

Thermistor characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

02-09

Refer to error code table.

3.11

35

12.4

5

Check Point 3 : Check voltage of Inverter PCB (DC5.0V)

Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor (DC5.0V)

If the voltage does not appear, replace Controller PCB.

CN61 CN62

THERMISTOR
( DISCHARGE PIPE )

THERMISTOR
( HEAT EXCHANGER )

THERMISTOR
( OUTDOOR TEMP. )

1

4

2

3

1

4

2

3

1
2
3

1
2
3

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

CN71 CN70

THERMISTOR
( DISCHARGE PIPE )

THERMISTOR
( HEAT EXCHANGER )

THERMISTOR
( OUTDOOR TEMP. )

1

4

2

3

1

4

2

3

1
2
3

1
2
3

BLACK

BLACK

BLACK

BLACK

AO*R09LKC AO*R12LKC

BLACK

BLACK

Trouble shooting 8
OUTDOOR UNIT Error Method:

Indicate or Display:

Detective Actuators: Detective details:

Forecast of Cause :

OKOK

OKOK

12.616.1

5

20.726.935.246.662.3115Resistance value (k )

0-5-10-20Temperature (°C ) 10 2015

1.652.363.455.187.97Resistance value (k )

7060504030Temperature (°C )

Outdoor Temperature Thermistor Error

Outdoor Unit Inverter PCB
Outdoor Temperature Thermistor

When Outdoor Temperature Thermistor open or short-circuit
is detected at power ON or while running the compressor.

1. Connector connection failure 2. Thermistor failure 3. Inverter PCB failure

Check Point 1 : Check connection of connector

Check if connector is removed.
Check if connector is erroneous connection.
Check if thermistor cable is open.

>> Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Remove connector and check thermistor resistance value

Thermistor characteristics (Approx. value)

If Thermistor is either open or shorted, replace it and reset the power.

02-10

Refer to error code table.

Check Point 3 : Check voltage of Inverter PCB (DC5.0V)

Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor (DC5.0V)

If the voltage does not appear, replace Inverter PCB.

CN61 CN62

THERMISTOR
( DISCHARGE PIPE )

THERMISTOR
( HEAT EXCHANGER )

THERMISTOR
( OUTDOOR TEMP. )

1

4

2
3

1

4

2
3

1
2
3

1
2
3

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

CN71 CN70

THERMISTOR
( DISCHARGE PIPE )

THERMISTOR
( HEAT EXCHANGER )

THERMISTOR
( OUTDOOR TEMP. )

1

4

2
3

1

4

2
3

1
2
3

1
2
3

BLACK

BLACK

BLACK

BLACK

AO*R09LKC AO*R12LKC

BLACK

BLACK

02-11

Trouble shooting 9
INDOOR UNIT Error Method:

Indicate or Display:

Detective Actuators: Detective details:

Forecast of Cause :

OKOK

Manual Auto Switch Error

Indoor Unit Inverter PCB
Manual Auto Switch

When the Manual Auto Switch becomes ON for consecutive 30 or
more seconds.

1. Manual Auto Switch failure 2. Inverter PCB failure

Check Point 1 : Check the Manual Auto Switch

Check if Manual Auto Switch is kept pressed.
Check ON/OFF switching operation by using a meter.

>> If Manual Auto Switch is disabled (on/off switching), replace it.

Check Point 2 : Replace Inverter PCB

If Check Point 1 do not improve the symptom, replace Inverter PCB.

Refer to error code table.

Trouble shooting 10
INDOOR UNIT Error Method:

Detective Actuators: Detective details:

Forecast of Cause:

OK

Indicate or Display:

Refer to error code table.

YESYES

NO

OK

Power Supply Frequency
Detection Error

Indoor Unit Controller PCB

1. Connection failure 2. External cause 3. Controller PCB failure

Check Point 1-1 : Reset the power supply and operate

Does error indication reappear?

Check Point 2 : Check connection

Check any loose or removed connection line of
between indoor unit and outdoor unit.

>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data &
Technical Manual.

Check connection condition in control unit.
(If there is loose connector, open cable or mis-wiring.)

Check Point 3 : Check the voltage of power supply

Check the voltage of power supply

>> Check if AC198(AC220V-10%) - 264V(AC240V+10%) appears
at outdoor unit terminal L - N.

When power frequency is not detected by 4 seconds after power-on.

02-12

Check Point 4 : Replace Controller PCB

If Check Point 1 ~ 3 do not improve the symptom, replace Controller PCB.

Check Point 1-2 : Check external cause such as noise

Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).

Trouble shooting 11
OUTDOOR UNIT Error Method:

Detective Actuators: Detective details:

Forecast of Cause :

Check Point 4 : Check Compressor

OK

OK

Indicate or Display:

Check Point 5 : Replace Inverter PCB

OKOK

Check Point 1 : Check connections condition in control unit

Over Current Protection

Outdoor Unit Inverter PCB
Compressor

1. Connection failure 2. Outdoor Fan operation failure 3.Outdoor Heat Exchanger clogged

4. Compressor failure 5. Inverter PCB failure

Check if the terminal connection is loose.
Check if connector is removed.
Check if connector is erroneous connection.
Check if cable is open.

>> Upon correcting the removed connector or mis-wiring, reset the power.

If Check Point 1 ~ 4 do not improve the symptom, replace Inverter PCB.

When over current flows in Inverter PCB, the compressor stops.
After the compressor restarts, if the same error is repeated within
40sec, the compressor stops reappear.
If and repeats 5 times, the compressor stops permanently.

02-13

Refer to error code table.

Compressor check is refer to SERVICE PARTS INFORMATION 2.

>> If it is abnormal, replace Compressor.

Check Point 2 : Check Outdoor Heat Exchanger

Is there any obstructing the air flow route?
Is there any clogging of outdoor unit Heat Exchanger?

>> If clogged, clear the clog.

Check Point 3 : Check Outdoor Fan

OK

Check Outdoor Fan Motor. (Refer to Trouble shooting 15)

>> If the Fan Motor is failure, replace it.

Trouble shooting 12
OUTDOOR UNIT Error Method:

Detective Actuators: Detective details:

Forecast of Cause :

Check Point 3 : Replace Inverter PCB

YES

NO

OK

Indicate or Display:

CT Error

Outdoor Unit Inverter PCB

Check Point 2 :
Check connections condition in control unit

Check if the terminal connection is loose.
Check if connector is removed.
Check if connector is erroneous connection.
Check if cable is open.

>> Upon correcting the removed connector or mis-wiring,
reset the power.

1. Connection failure 2. External cause 3. Inverter PCB failure

Check Point 1-1 : Reset power supply and operate

Does error indication reappear?

After compressor runs for 1 minute or more, and while it runs
in 56Hz or more.
When outdoor current value (A/D data) of Input Current Sensor
has detected [00H].

02-14

Refer to error code table.

Check Point 1-2 : Check external cause such as noise

Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).

If Check Point 1 ~ 2 do not improve the symptom,
replace Inverter PCB.

Trouble shooting 13
OUTDOOR UNIT Error Method:

Detective Actuators: Detective details:

Forecast of Cause :

OK

Indicate or Display:

Compressor Location Detection Error

Outdoor Unit Inverter PCB

Check if the terminal connection is loose.
Check if connector is removed.
Check if connector is erroneous connection.
Check if cable is open.

>> Upon correcting the removed connector or mis-wiring, reset the power.

1. Connector connection failure 2.Inverter PCB failure

Check Point 1 : Check connections condition in control unit

When "compressor location detection error" is detected consecutively
5 times, within 40 seconds after start-up.

02-15

Refer to error code table.

Check Point 2 : Replace Inverter PCB

If Check Point 1 do not improve the symptom, replace or Inverter PCB.

Trouble shooting 14
OUTDOOR UNIT Error Method:

Detective Actuators: Detective details:

Forecast of Cause:

Check Point 2 : Check ambient temp. around motor

OK

OK

Indicate or Display:

Outdoor Unit Fan Error

Outdoor Unit Inverter PCB
Outdoor Fan Motor

1. Fan Motor failure 2. Motor protection by surrounding temperature rise 3. Inverter PCB failure

Check Point 1 : Check rotation of Fan

Check if the Fan Motor is lock.
(Can the Fan be rotated by hand when operation is off.)
Check the Fan loosening.
(Lock-nut loosening, defective propeller fan)

>> If Fan Motor or bearing is abnormal, replace it.

Check excessively high temperature around the motor.
(If there is any surrounding equipment that causes heat)

>> Upon the temperature coming down, restart operation.

Check Point 3 : Check output voltage of Inverter PCB

If the voltage is not correct, replace Inverter PCB.

When outdoor fan rotation speed is less than 100rpm in 20 seconds
after fan motor starts, fan motor stops.
After fan motor restarts, if the same operation within 60sec is repeated
consecutively 3 times, compressor and fan motor stops.
If repeats 5 times in a row, compressor and fan motor stops
permanently.

02-16

Refer to error code table.

BLACK

BROWN

RED

WHITE

YELLOW

CN800

1 2

3

4 5

6

1 2

3

4 5

6

FM

FAN MOTOR

Check outdoor unit circuit diagram and the voltage.
(Measure at Inverter PCB side connector)

>>1 pin(Red) - 4 pin(Black) DC250V ~ 400V
>>4 pin(Black) - 5 pin(White) DC15V 2V

7
7

Detective Actuators: Detective details:

Forecast of Cause:

Check Point 1 : Check rotation of Fan

Check Point 2 : Check ambient temp. around motor

OK

OK

Indoor Unit Controller PCB
Indoor Fan Motor

1. Fan Motor failure 2. Motor protection by surrounding temperature rise

3. Controller PCB failure

Check if the Fan Motor is lock.
(Can the Fan be rotated by hand when operation is off.)
Check the Fan loosening.
(Lock-nut loosening, defective propeller fan)

>> If Fan Motor or bearing is abnormal, replace it.

Check excessively high temperature around the motor.
(If there is any surrounding equipment that causes heat)

>> Upon the temperature coming down, restart operation.

When the condition that actual rev. of Indoor Fan is 1/3 or less.
Or the condition of fan speed is 0rpm is continued more than 56 seconds.

02-17

Check Point 3 : Replace Controller PCB

If Check Point 1, 2 do not improve the symptom, replace Controller PCB.

Trouble shooting 15
INDOOR UNIT Error Method:

Indicate or Display:

Indoor Fan Motor Lock Error
Indoor Fan Motor Rev. Error

Refer to error code table.

Trouble shooting 16
OUTDOOR UNIT Error Method:

Indicate or Display:

Detective Actuators: Detective details:

Forecast of Cause :

Discharge Temperature Error

Outdoor Unit Inverter PCB
Discharge Pipe Temperature Thermistor

02-18

When the discharge temperature becomes higher than 115°C.
When detecting it 2 times within 24 hours, the compressor stops.

Check Point 1 : Check if gas valve is open

If it is not open, open it and check the operation.

Check Point 3 : Check if gas leak or less gas

Measure gas pressure, if there is a leak, correct it.

>> If recharging refrigerant, make sure to perform
vacuuming and recharge the specified amount.

Check Point 5 : Check Outdoor Heat Exchanger

Is there any obstructing the air flow route?
Is there any clogging of outdoor unit Heat Exchanger?

>> If clogged, clear the clog.

Check Point 4 : Check Discharge Pipe Thermistor

Is it on the holder?
Is there a cable pinched?

>> Check characteristics of thermistor (Refer to Trouble shooting 6),
If defective, replace the thermistor.

Check Point 2 : Check EEV and Strainer

Are EEV and Strainer open?
(Refer to PARTS INFORMATION 3)

>> If EEV or Strainer is defective, replace it.

OK

OK

OK

OK

OK

OK

MPa MPa

1. Valve is close 2. EEV failure 3. Gas leak, less 4. Discharge Thermistor failure

5. Outdoor Fan operation failure 6. Outdoor Heat Exchanger clogged

< Cooling mode >

< Heating mode >

Check Point 1 : Check if liquid valve is open

If it is not open, open it and check the operation.

Check Point 2 : Check EEV and Strainer

Are EEV and Strainer open?
(Refer to PARTS INFORMATION 3)

>> If EEV or Strainer is defective, replace it.

Refer to error code table.

Check Point 6 : Check Outdoor Fan

OK

Check Outdoor Fan Motor. (Refer to Trouble shooting 14)

>> If the Fan Motor is failure, replace it.

Trouble shooting 17
OUTDOOR UNIT Error Method:

Detective Actuators: Detective details:

Forecast of Cause :

Check Point 3 : Check Outdoor Fan

OK

OK

Indicate or Display:

OKOK

OKOK

Check Point 1 : Check connections condition in control unit

Excessive High Pressure
Protection On Cooling

1. Connection failure 2. Outdoor Fan operation failure

3. Outdoor Heat Exchanger clogged 4. Thermistor failure 5. EEV failure 6. Inverter PCB failure

Check if the terminal connection is loose.
Check if connector is removed.
Check if connector is erroneous connection.
Check if cable is open.

>> Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 2 : Check Outdoor Heat Exchanger

Is there any obstructing the air flow route?
Is there any clogging of outdoor unit Heat Exchanger?
>> If clogged, clear the cloge it.

Check Outdoor Fan Motor. (Refer to Trouble shooting 14)

>> If the Fan Motor is failure, replace it.

Check Thermistor. (Refer to Trouble shooting 7)
>> If the Thermistor is failure, replace it.

Check Point 5 : Check EEV

Check Point 4 : Check Thermistor

Check EEV. (PARTS INFORMATION 3)

>> If the EEV is failure, replace it.

In cooling operation, after 1 minute or more compressor starts,
when outdoor heat exchanger temperature is 68 °C and above.

02-19

Check Point 6 : Replace Inverter PCB

OKOK

If Check Point 1 ~ 5 do not improve the symptom, replace Inverter PCB.

Outdoor Unit Inverter PCB
Outdoor Fan Motor
Heat Exchanger Temp. Thermistor
Outdoor unit EEV

Refer to error code table.

Forecast of Cause :

OKOK

OKOK

When the indoor heat exchanger temperature is compared with
the room temperature, and either following condition is detected
continuously two times, the compressor stops.

1. Connector connection failure 2. Thermistor failure 3. Coil failure 4. 4-way valve failure

5. Inverter PCB failure

Check Point 1 : Check connection of Connector

Check if connector is removed.

Check erroneous connection.
Check if thermistor cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 3 : Check the solenoid coil and 4-way valve

Remove CN501(AO*R09LKC)/CN30(AO*R12LKC) from PCB and check the resistance
value of coil.Resistance value is about 1.4k

>>If it is Open or abnormal resistance value, replace Solenoid Coil.

02-20

Cooling or Dry operation
[Indoor heat exchanger temp.] - [Room temp.] > 10degC

Heating operation
[indoor heat exchanger temp.] - [room temp.] < -10degC

If the same operation is repeated 5 times,
the compressor stops permanently.

[ Solenoid coil ]

Check each piping temperature,
and the location of the valve by the temperature difference.

>>If the value location is not proper, replace 4-way valve.

[ 4-way valve ]

OKOK

Check Point 4 : Replace Inverter PCB

If Check Point 1- 3 do not improve the symptom, replace Inverter PCB.

Check Point 2 : Check each thermistor

Isn’t it fallen off the holder?
Is there a cable pinched?

>> Check characteristics of thermistor,
If defective, replace the thermistor

Trouble shooting 18
OUTDOOR UNIT Error Method:

Detective Actuators: Detective details:

Indicate or Display:

4-way valve error

Outdoor Unit Inverter PCB Circuit
4-way valve

Refer to error code table.

Trouble shooting 19
OUTDOOR UNIT Error Method:

Detective Actuators: Detective details:

Forecast of Cause :

OK

Indicate or Display:

Active Filter Error

Outdoor Unit Inverter PCB

Check if the terminal connection is loose.
Check if connector is removed.
Check if connector is erroneous connection.
Check if cable is open.

>> Upon correcting the removed connector or mis-wiring, reset the power.

1. Connector connection failure 2. lnverter PCB failure

Check Point 1 : Check connections condition in control unit

Inverter low voltage protection
Inverter overvoltage protection

02-21

Refer to error code table.

Check Point 2 : Check Inverter PCB

If Varistor is defective, there is a possibility of an abnormal
power supply.
Check the correct power voltage and replace Inverter PCB.

Check Varistor(VA1 - VA2).

Forecast of Cause :

OKOK

OKOK

1. External cause 2. Connector connection failure 3. Inverter PCB failure

Check Point 2 : Check connection of Connector

Check if connector is removed.

Check erroneous connection.
Check if cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Check Point 3 : Replace Inverter PCB

If Check Point 1, 2 do not improve the symptom, replace Inverter PCB.

Check Point 1 : Check external cause at Indoor and Outdoor (Voltage drop or Noise)

Instant drop : Check if there is a large load electric apparatus in the same circuit.
Momentary power failure : Check if there is a defective contact or leak current

in the power supply circuit.

Noise : Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check the complete insulation of grounding.

02-22

When inverter output DC voltage is higher than 415V for over
3 seconds, the compressor stops.
If the same operation is repeated 5 times, the compressor
stops permanently.

Trouble shooting 20
OUTDOOR UNIT Error Method:

Detective Actuators: Detective details:

Indicate or Display:

PFC circuit error

Outdoor Unit Inverter PCB Circuit

Refer to error code table.

Detective Actuators: Detective details:

Forecast of Cause:

Check Point 3 : Replace Controller PCB

Check Point 2 :
Check connections condition in control unit

YESYES

NO

Trouble shooting 21
INDOOR UNIT Error Method:

Indicate or Display:

Model Distinction Error (Indoor)

Indoor Unit Controller PCB

1. External cause 2. Defective for connection in controller unit 3. Controller PCB failure

Check Point 1-1 : Reset power supply and operate

Does error indication show reappear?

Check all connectors.
(loose connector or incorrect wiring)
Check any shortage or corrosion on PCB.

If Check Point 1, 2 do not improve the symptom,
replace Controller PCB.

When power is on and there is some below case.

1. When model information of EEPROM is incorrect

2. When the access to EEPROM failed

02-23

Refer to error code table.

Check Point 1-2 : Check external cause such as noise

Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).

OK

Trouble shooting 22

Forecast of Cause:

NO

OK

OK

OKOK

Indoor Unit - No Power

1. Power supply failure 2. External cause

3. Electrical components defective

Check Point 1 : Check installation condition

Isn’t the breaker down?
Check loose or removed connection cable.

>> If abnormal condition is found, correct it by referring to manual.

Check Point 2 : Check external cause at indoor unit and outdoor unit(Voltage drop or noise)

Instant voltage drop of ----- Check if there is abnormally large load in the same
power supply power supply system.
Momentary power failure ----- Check if there is a defective contact or leak current in
the power supply system.
Noise ----- Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check whether the ground connection is proper.

Check Point 3 : Check electrical components

02-24

2-3 TROUBLE SHOOTING WITH NO ERROR CODE

Check the voltage of power supply.

>> Check if AC198(AC220V-10%) - 264V(AC240V+10%) appears at indoor unit
Terminal L - N(Power supply).

Check Fuse on Controller PCB (F1).

>> If Fuse is open, check loose terminal, and replace Fuse.

Check Varistor on Inverter PCB (VA1).

>> If Varistor is defective, there is a possibility of an abnormal power supply.
Check the correct power voltage.

OK

If Check Point 1 3 do not improve the symptom, replace Controller PCB.

Trouble shooting 23

Forecast of Cause:

NO

OK

OK

OKOK

Outdoor Unit - No Power

1. Power supply failure 2. External cause

3. Electrical components defective

Check Point 1 : Check installation condition

Isn’t the breaker down?
Check loose or removed connection cable.

>> If abnormal condition is found, correct it by referring to manual.

Check Point 2 : Check external cause at indoor unit and outdoor unit(Voltage drop or noise)

Instant voltage drop of ----- Check if there is a abnomally large load in the same
power supply power supply system.
Momentary power failure ----- Check if there is a defective contact or leak current in
the power supply system.
Noise ----- Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check whether the ground connection is proper.

Check Point 3 : Check electrical components

If Check Point 1 ~ 3 do not improve the symptom, replace Inverter PCB,

02-25

Check the voltage of power supply.

>> Check if AC198(AC220V-10%) - 264V(AC240V+10%) appears
at outdoor unit terminal L - N.

Check Fuse(F201) on terminal board.

>> If Fuse is open, check loose terminal, and replace Fuse.

Check Varistor on Filter PCB (VA1 - 2).

>> If Varistor is defective, there is a possibility of an abnormal power supply.
Check the correct power voltage.

OK

Trouble shooting 24

Forecast of Cause:

Check Point 2 : Check external cause at indoor unit and outdoor unit(Voltage drop or noise)

Check Point 1 : Check indoor and outdoor installation condition

Check Point 3 : Check electrical components at indoor unit and outdoor unit

OK

OK

OK

No Operation (Power is ON)

1. Setting / Connection failure 2. External cause

3. Electrical component defective

Indoor unit - Check incorrect wiring between indoor unit - remote controller, or terminals between indoor units.
Or, check if there is an open cable connection.
Are these indoor unit, outdoor unit, and remote controller suitable model numbers to connect?

>> If there is some abnormal condition, correct it by referring to manual.

Is there loose or removed serial communication line of between indoor unit and outdoor unit?

Instant voltage drop of power supply ----- Check if there is abnormally large load in the same power supply system.
Momentary power failure ----- Check if there is a defective contact or leak current in the power supply system.
Noise ----- Check if there is any equipment causing harmonic wave near electric line.
(Neon bulb or electric equipment that may cause harmonic wave)
Check whether the ground connection is proper.

Check voltage at CN8 on Controller PCB.

>> If it is DC12V, Wired Remote Controller is failure. >> Replace Wired Remote Controller(Option)
>> If it is DC 0V, Controller PCB is fallure. >> Replace Controller PCB

>> If Check Point 1 - 3 do not improve the symptom, replace control parts of outdoor unit.

02-26

Attention

Trouble shooting 25

Forecast of Cause:

Check Point 2 : Check outdoor unit operation

Check Point 1 : Check indoor unit

Check Point 3 : Check site condition

Check Point 5 : Check refrigeration cycle

Check Point 4 :
Check indoor unit / outdoor unit installation condition

Pipe (In) Pipe (Out)

Pipe (In) Pipe (Out)

OKOK

OKOK

OKOK

OKOK

No Cooling / No Heating

1. Indoor unit error 2. Outdoor unit error

3. Effect by surrounding environment

4. Connection pipe / Connection wire failure 5. Refrigeration cycle failure

Does indoor unit Fan run on high fan?
Is Air Filter dirty?
Is Heat Exchanger clogged?
Check if energy save function is operated.

Is outdoor unit is operating?
(If not, refer to Trouble shooting 23)
Is there any obstructing the air flow route?
Is there any clogging on outdoor unit Hert Exchanger?
Is the valve open?

Is capacity of indoor unit fitted to room size?
Any windows open? Or direct sunlight?

Check connection pipe.
(Specified pipe length and pipe diameter?)
Check any loose or removed communication line.

>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data & Technical
Manual.

Check if Strainer is clogged (Refer to the figure at right).
Measure gas pressure and if there is a leakage, correct it.

>> When recharging the refrigerant, make sure to perform
vacuuming, and recharge the specified amount.

Check EEV
Check Compressor

Strainer normally does not have temperature difference
between inlet and outlet as shown in , but if there is a
difference like shown in , there is a possibility of inside
clogged. In this case, replace Strainer.

02-27

MPa MPa

Trouble shooting 26

Forecast of Cause :

Trouble shooting 27

Forecast of Cause:

OK

OK

OK

OK

OK

OK

OK

Abnormal Noise

1. Abnormal installation(Indoor unit / outdoor unit)

2. Fan failure(Indoor unit / outdoor unit)

3. Compressor failure (Outdoor unit)

Diagnosis method when abnormal noise is occurred

Abnormal noise is coming from indoor unit.
(Check and correct followings)

Abnormal noise is coming from outdoor unit.
(Check and correct followings)

Is Fan broken or deformed?
Is the screw of Fan loose?
Is there any object which obstruct the Fan rotation?

Is main unit installed in stable condition?
Is the installation of air suction grille and
front panel normal?

Is Fan broken or deformed?
Is the screw of Fan loose?
Is there any object which obstruct the Fan rotation?

Is main unit installed in stable condition?
Is Fan Guard installed normally?

Check if vibration noise by loose bolt or contact noise
of piping is happening.

Is Compressor locked?
>> Check Compressor

Water Leaking

Diagnosis method when water is spitting out.

Is the filter clogged?

Check gas pressure and correct it
if there was a gas leak.

Diagnosis method when water leak occurs

Is Drain Hose connection loose?
Is there a trap in Drain Hose?
Is Drain Hose clogged?

Is main unit installed in stable condition?
Is main unit broken or deformed at the time of
transportation or maintenance?

Is Fan rotating?
>> Check Fan Motor

02-28

1. Erroneous installation 2. Drain hose failure

MPa MPa

SERVICE PARTS INFORMATION 1

MPa

Compressor

Diagnosis method of Compressor (If outdoor unit LED displays error, refer to Trouble shooting )

Does not start up

Is there open or loose connection
cable?

Check
connection of Compressor,and winding
resistance. (Refer to the next page).

Check Inverter PCB
connection of Compressor,and winding
resistance. (Refer to the next page).

>> If there is no failure, the defect of Compressor can be
considered. (Compression part broken or valve defective.)

>> If there is no failure, the defect of
Compressor is considered (Locked
compressor due to clogged dirt or
less oil)

Replace Compressor

Replace Compressor

Replace Compressor

Stops soon after starting up

Is there open or loose connection
cable?

Is Gas Pipe Valve open?
(Low Pressure is too low)

Check if Refrigerant is leaking.
(Recharge Refrigerant)

Check if Strainer is clogged.
(PARTS INFORMATION 3)

Abnormal noise

Defective Compressor
can be considered.
(due to inside dirt clogging
or broken component)

Check if vibration noise by
loose bolt or contact noise
of piping is happening.

02-29

2-4 SERVICE PARTS INFORMATION

MPa

SERVICE PARTS INFORMATION 2

Inverter Compressor

02-30

Check Point 1 : Check connection

Check Point 2 : Check winding resistance

Check Point 3 : Replace Inverter PCB

U

V

W

Check terminal connection of Compressor
(Loose or incorrect wiring)

Check winding resistance of each terminal

If the resistance value is 0 or infinite, replace Compressor.

If Check Point 1, 2 do not improve the symptom, replace lnverter PCB.

Resistance value : 0.71
(at 20°C)

U

(RED)

V

(WHITE)

W

(BLACK)

Inverter PCB

Check connection of Inverter PCB
(Loose or incorrect wiring)

W9W8

W7

RED

WHITE

BLACK

Compressor

Inverter PCB

SERVICE PARTS INFORMATION 3

Check Point 2 : Check coil of EEV

Check Point 1 : Check Connections

Check Point 3 : Check voltage from Inverter PCB.

Check Point 4 : Check Noise at start up

Outdoor Unit Electronic Expansion Valve (EEV)

Check connection of connector
( Loose connector or open cable )

Remove connector, check each winding resistance of Coil.

If Resistance value is abnormal, replace EEV.

Remove Connector and check Voltage (DC12V)

If it does not appear, replace Controller PCB.

Turn on Power and check operation noise.

If an abnormal noise does not show, replace Inverter PCB.

02-31

CN600

EXPANSION VALVE COIL

Red - Orange

Red - Yellow

Red - White

Red - Green

Read wire

46 4

Resistance value

at 20°C

DC

1
2
3
4
5

1
2
3
4
5

PMV

Red

Orange

Green

Yellow

White

CN40

EXPANSION VALVE COIL

1
2
3
4
5

1
2
3
4
5

PMV

Red

Orange

Brown

Yellow

White

AO*R09LKC AO*R12LKC

Red - Orange

Red - Yellow

Red - White

Red - Brown

Read wire

46 4

Resistance value

at 20°C

AO*R09LKC AO*R12LKC

Check Point 5 : Check opening and closing operation of valve

Pipe (In)
Hi TEMP.

OPEN
Example : Hot gas

Pipe (Out)
Hi TEMP.

Check Point 6 : Check Strainer

Pipe (In)
Hi TEMP.

Pipe (Out)
Normal TEMP.

CLOSE
Example : Hot gas

When valve is closed,
it has a temp. difference between Inlet and outlet.

If it is open,
it has no temp. difference between inlet and outlet.

Strainer normally does not have temperature difference between inlet and outlet as shown in ,
but if there is a difference as shown in , there is a possibility of inside clogged. In this case, replace Strainer.

Pipe (In) Pipe (Out)

Pipe (In) Pipe (Out)

02-32

3 . APPENDING DATA

R410A

WALL MOUNTED type

INVERTER

1. Jumper setting of Outdoor unit

2. Outdoor unit Pressure Value and Total Electric Current Curve

3. Thermistor Resistance Values

03-01

[Outdoor Unit]

JP

JM2 JM103 JM102 JM101

Normal Preheat

12LKC

Higher Preheat

- it is possible to select the higher or standard level of preheating function.

- When it is set up at the higher level of preheat, the magnetic noise of the compressor becomes higher.

Normal Preheat

09LKC

Higher Preheat

1. Jumper setting of Outdoor unit

JM100JM3JM1

Model Name : AS*A09 / 12LKC

[Condition]
Ambient

temperature

Indoor / Outdoor - Same temperature

Refrigerant

amount

Standard amount

Piping

length

5.0m (Height difference 1m)

Power

voltage

50Hz - 230V

Operation

condition

TEST mode (Cooling), Hi Fan, Horizontal direction, Front air flow

Measuring

method

[Constant Frequency Operation Method (Test mode)]

1. Operate on Colling mode, and press TEST button of remote control.

2. Operate continuously for 30 minutes. (After 60 minutes of operation, Test mode is released automatically.)

(1) Indoor/Outdoor Temperature - Outdoor Low Pressure Curve

AS*A09LKC

AS*A12LKC

AS*A09LKC

AS*A12LKC

(2) Indoor/Outdoor Temperature - Outdoor Total Electric Current Curve

Measure the low pressure with the pressure meter at the service valve.
Measure the outdoor unit overall current with the current clamp meter at Power Cable.

In/outdoor ambient temparature [degC] In/outdoor ambient temparature [degC]

Low-pressure of outdoor unit [MPa]

Low-pressure of outdoor unit [MPa]

In/outdoor ambient temparature [degC] In/outdoor ambient temparature [degC]

Outdoor total electric current [A]

Outdoor total electric current [A]

03-02

[50Hz-230V]

0.8

0.9

1.0

1.1

1.2

1.3

1.4

16 18 20 22 24 26 28 30 32

RH50%
RH60%
RH70%

[50Hz-230V]

0.6

0.7

0.8

0.9

1.0

1.1

1.2

16 18 20 22 24 26 28 30 32

RH50%

RH60%

RH70%

[50Hz-230V]

2.6

2.8

3.0

3.2

3.4

3.6

16 18 20 22 24 26 28 30 32

RH50%
RH60%
RH70%

[50Hz-230V]

3.4

3.6

3.8

4.0

4.2

4.4

4.6

4.8

16 18 20 22 24 26 28 30 32

RH50%

RH60%

RH70%

2. Outdoor unit Pressure Value and Total Electric Current Curve

2-1 Cooling operation

Model Name : AS*A09 / 12LKC

[Condition]
Ambient

temperature

IIndoor / Outdoor - Same temperature

Refrigerant

amount

Standard amount

Piping 5.0m (Height difference 1m)

Power

voltage

50Hz - 230V

Operation

condition

TEST mode (Heating), Hi Fan, Lower direction, Front air flow

Measuring

method

[Constant Frequency Operation Method (Test mode)]

1. Operate on Heating mode, and press TEST button of remote control.

2. Operate continuously for 30 minutes. (After 60 minutes of operation, Test mode is released automatically.)

(1) Indoor/Outdoor Temperature - Outdoor High Pressure Curve

AS*A09LKC

AS*A09LKC

AS*A12LKC

AS*A12LKC

(2) Indoor/Outdoor Temperature - Outdoor Total Electric Current Curve

Outdoor ambient temparature [degC] Outdoor ambient temparature [degC]

High-pressure of outdoor unit [MPa]

High-pressure of outdoor unit [MPa]

Outdoor ambient temparature [degC]

Outdoor ambient temparature [degC]

Outdoor total electric current [A]

length

03-03

Measure the high pressure with the pressure meter at the service valve.
Measure the outdoor unit overall current with the current clamp meter at Power Cable.

2-2 Heating operation

[50Hz-230V]

2.0

2.2

2.4

2.6

2.8

3.0

0 2 4 6 8 10 12 14

15 degC
20 degC (Indoor ambient temp.)
23 degC

[50Hz-230V]

2.6

2.8

3.0

3.2

3.4

3.6

3.8

0 2 4 6 8 10 12 14

[50Hz-230V]

5.6

6.0

6.4

6.8

7.2

7.6

0 2 4 6 8 10 12 14

15 degC
20 degC (Indoor ambient temp.)
23 degC

15 degC
20 degC (Indoor ambient temp.)
23 degC

Outdoor total electric current [A]

[50Hz-230V]

3.8

4.2

4.6

5.0

5.4

5.8

0 2 4 6 8 10 12 14

15 degC
20 degC (Indoor ambient temp.)
23 degC

0.00 33.62 1.15 0.00 176.03 1.10

5.00 25.93 1.39 5.00 134.23 1.36

10.00 20.18 1.66 10.00 103.34 1.63

15.00 15.84 1.94 15.00 80.28 1.92

20.00 12.54 2.22 20.00 62.91 2.21

25.00 10.00 2.50 25.00 49.70 2.51

30.00 8.04 2.77 30.00 39.57 2.79

35.00 6.51 3.03 35.00 31.74 3.06

40.00 5.30 3.27 40.00 25.64 3.30

45.00 4.35 3.48 45.00 20.85 3.53

50.00 3.59 3.68 50.00 17.06 3.73

55.00 2.98 3.85 55.00 14.10 3.90

60.00 2.47 4.00 60.00 11.64 4.55

65.00 2.09 4.14 65.00 9.69 4.19

70.00 1.76 4.25 70.00 8.12 4.30

75.00 1.49 4.35 75.00 6.83 4.40

80.00 1.27 4.44 80.00 5.78 4.48

85.00 1.09 4.51 85.00 4.91 4.55

90.00 0.93 4.57 90.00 4.19 4.61

95.00 0.81 4.63 95.00 3.59 4.66

100.00

0.70

4.67

100.00

3.09

4.71

0.00 168.6 0.36 -20.00 48.13 0.45 -20.00 101.7 1.37

5.00 130.7 0.45 -15.00 36.07 0.58 -15.00 76.31 1.67

10.00 102.2 0.56 -10.00 27.29 0.74 -10.00 57.73 1.99

15.00 80.51 0.70 -5.00 20.84 0.93 -5.00 44.01 2.33

20.00 63.89 0.85 0.00 16.05 1.14 0.00 33.80 2.66

25.00 51.05 1.01 5.00 12.45 1.38 5.00 26.14 2.97

30.00 41.07 1.20 10.00 9.736 1.64 10.00 20.35 3.27

35.00 33.26 1.41 15.00 7.672 1.91 15.00 15.96 3.53

40.00 27.09 1.62 20.00 6.090 2.19 20.00 12.59 3.76

45.00 22.20 1.85 25.00 4.869 2.47 25.00 10.00 3.96

50.00 18.29 2.08 30.00 3.918 2.74 30.00 7.990 4.14

55.00 15.15 2.31 35.00 3.173 3.00 35.00 6.423 4.28

60.00 12.62 2.54 40.00 2.586 3.24 40.00 5.192 4.40

65.00 10.56 2.76 45.00 2.120 3.46 45.00 4.222 4.50

70.00 8.878 2.97 50.00 1.747 3.66 50.00 3.451 4.59

75.00 7.498 3.17 55.00 1.448 3.83 55.00 2.836 4.66

80.00 6.361 3.36 60.00 1.206 3.99 60.00 2.343 4.71

85.00 5.419 3.53 65.00 1.009 4.12 65.00 1.945 4.76

90.00 4.635 3.69 70.00 0.849 4.24 70.00 1.623 4.80

95.00 3.980 3.83 75.00 0.717 4.34 75.00 1.361 4.83

100.00 3.430 3.96 80.00 0.608 4.43 80.00 1.146 4.85

105.00 2.967 4.07 85.00 0.518 4.51 85.00 0.970 4.88

110.00 2.575 4.17 90.00 0.444 4.57 90.00 0.824 4.89

115.00 2.243 4.26 95.00 0.381 4.63 95.00 0.703 4.91

120.00

1.960

4.34

100.00

0.328

4.68

100.00

0.602 4.92

Room temperature thermistor

Temp ( C)

Resistance(k )

Voltage(V)

Indoor heat exchanger thermistor

Temp ( C)

Resistance(k )

Voltage(V)

Discharge thermistor

Temp ( C)

Resistance(k )

Voltage(V)

Outdoor heat exchanger thermistor

Temp ( C)

Resistance(k )

Voltage(V)

Temp ( C)

Resistance(k )

Voltage(V)

Outdoor temperature thermistor

03-04

3. Thermistor Resistance Values

3-1 INDOOR UNIT

3-2 OUTDOOR UNIT

1116,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan

MAR. 2010 Printed in Japan