Fujitsu AG * V09LAC Series, AG * V12LAC Series, AG * V14LAC Series Service Instruction

SPLIT TYPE
ROOM AIR CONDITIONER

FLOOR

type

Models Indoor unit Outdoor unit

AG * V09LAC
AG * V12LAC
AG * V14LAC

AO * V09LAC
AO * V12LAC
AO * V14LAC

INVERTER

SERVICE

INSTRUCTION

R410A

CONTENTS

1. SPECIFICATION

AG*V09/ 12LAC, AO*V09/ 12LAC...................................................................................

2. DIMENSIONS

AG*V09/ 12/ 14LAC, AO*V09/ 12/ 14LAC.......................................................................

AG*V14LAC, AO*V14LAC...............................................................................................

3. REFRIGERANT SYSTEM DIAGRAM

AG*V09/ 12/ 14LAC, AO*V09/ 12/ 14LAC.......................................................................

4. CIRCUIT DIAGRAM

AG*V09/ 12LAC, AO*V09/ 12LAC...................................................................................

AG*V14LAC, AO*V14LAC...............................................................................................

5. 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. AIR OUTLET SELECTION (DAMPER CONTROL)....................................................

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

01-01

02-01
02-02

03-01

04-01
04-02

05-01
05-02
05-03
05-04
05-05
05-07
05-08
05-09
05-10
05-12
05-12

05-12
05-12
05-13
05-13

05-13
05-13

05-14
05-16
05-17

22. 10°C HEAT OPERATION........................................................................................... 05-18

23. VARIOUS PROTECTIONS......................................................................................... 05-19

05-12

6. REFRIGERANT CAUTION -R410A-

1. R410A TOOLS............................................................................................................

3. PRECAUTION FOR SERVICING...............................................................................

2. PRECAUTION FOR INSTALLATION.........................................................................

5. DEFFERENCE FROM CONVENTIONAL MODEL(R22) AND PRECAUTIONS........

4. NEW REFRIGERANT R410A.....................................................................................

7. TROUBLE SHOOTING

1. WHEN THE UNIT DOES NOT OPERATE AT ALL....................................................

2. SELF DIAGNOSIS FUNCTION..................................................................................

1. DISASSEMBLY ILLUSTRATION & PARTS LIST......................................................

2. DISASSEMBLY PROCESS ......................................................................................

8. APPENDING DATA

1. JUMPER SETTING OF INDOOR UNIT AND OUTDOOR UNIT................................

3. THERMISTOR RESISTANCE VALUES.....................................................................

2. OUTDOOR UNIT PRESSURE VALUE AND TOTAL ELECTRIC

CURRENT CURVE...................................................................................................

9. REPLACEMENT PARTS

10. INSTALLATION MANUAL

3. SELF-DIAGNOSIS FUNCTION AND CHECKING POINTS.......................................

4. SERIAL SIGNAL DIAGNOSIS....................................................................................

5. IPM PROTECTION.....................................................................................................

6. TROUBLE SHOOTING OF REFRIGERANT CYCLE.................................................

06-01
06-02
06-04
06-05
06-08

07-01
07-02
07-03
07-08

07-09

08-01

08-02
08-06

09-01
09-13

07-10

1 . SPECIFICATIONS

R410A

FLOOR type

INVERTER

SPECIFICATIONS

INDOOR UNIT

H x W x D (mm)

H x W x D (mm)

600 x 740 x 200

OUTDOOR UNIT

540 x 790 x 290

578 x 790 x 300

DIMENSIONS

INDOOR UNIT

GROSS / NET(kg)

GROSS / NET(kg)

17 / 14

OUTDOOR UNIT

44 / 4040 / 36

WEIGHT

TYPE

COOL & HEAT INVERTER

INDOOR UNIT

OUTDOOR UNIT

AG*V09LAC

AO*V09LAC

AG*V12LAC

AO*V12LAC

AG*V14LAC

AO*V14LAC

COOLING CAPACITY

(kW) 3.5 (0.9~4.0)

HEATING CAPACITY

(kW)

4.5 (0.9~6.6)

4.2 (0.9~5.0)

5.2 (0.9~8.0)

POWER SOURCE (V) 230

FREQUENCY (Hz)

50

RUNNING CURRENT

COOLING 4.4

(A)

HEATING

5.5

INPUT WATTS

(kW)

COOLING 0.94 (0.25~1.40)

HEATING

1.19 (0.25~2.15)

E.E.R.

COOLING

3.72

COP HEATING

3.78

MOISTURE REMOVAL

1.8

AIR CIRCULATION-Hi (m /hr)

3

C:570 H:600

5.2

6.4

1.14(0.25~1.90)

1.44(0.25~2.95)

3.68

3.61

2.1

C:650 H:650C:570 H:600

C:760 H:680

2.6 (0.9~3.5)

3.5 (0.9~5.5)

2.6

3.8

0.53 (0.25~1.35)

0.79 (0.25~2.10)

4.91

4.43

1.3

FAN MOTOR

TYPE

Hermetic type, 4 pole, 3 phase, DC inverter motor, Rotary

DISCRIMINATION

REFRIGERANT R410A (g) 1,050 1,1501,050

POWER SOURCE (V) 230

HI-SPEED (UP/ LO)

(r.p.m.)

C:1,190/ 1,000
H:1,240/ 1,040

C:1,000/ 850
H:1,040/ 880

C: 820/ 690
H: 840/ 700

C: 660/ 560
H: 660/ 560

C:760 H:760

C:1,190/ 1,000
H:1,240/ 1,040

C:1,000/ 850
H:1,040/ 880

C: 820/ 690
H: 840/ 700

C: 660/ 560
H: 660/ 560

C:820 H:750

C:1,330/ 1,120
H:1,330/ 1,120

C:1,100/ 930
H:1,100/ 930

C: 890/ 750
H: 860/ 730

C: 660/ 560
H: 660/ 560

INDOOR
UNIT

MED-SPEED (UP/ LO)

LO-SPEED (UP/ LO)

QUIET (UP/ LO)

OUTDOOR UNIT

ELECTRICAL DATA

COMPRESSOR

( /hr)

(kW/kW)

(kW/kW)

01-01

(dB)

(dB)

HI-SPEED

MED-SPEED

INDOOR UNIT

LO-SPEED

QUIET

C:40 H:40

C:47 H:48

C:35 H:35

C:22 H:22

C:29 H:29

C:40 H:40

C:48 H:49

C:35 H:35

C:22 H:22

C:29 H:29

C:44 H:43

C:50 H:50

C:38 H:37

C:22 H:22

C:31 H:29

OUTDOOR UNIT

NOISE LEVEL

20 m

15m chargeless, 20g/m (>15m)

Note : Noise was measured in accordance with JIS standards, Japan.

MAX PIPE LENGTH

ADDITIONAL REFRIGERANT

DA89X1C-20FZ DA130A1F-25F

2 . DIMENSIONS

R410A

FLOOR type

INVERTER

DIMENSIONS

Models : AG*V09LAC / AO*V09LAC
AG*V12LAC / AO*V12LAC

02-01

(unit : mm)

540

740 200

790

56

290

353

17

600

DIMENSIONS

Models : AG*V14LAC / AO*V14LAC

02-02

347

578

48

10

320

508

540

20

300

125

60

790

(unit : mm)

740 200

600

3 . REFRIGERANT SYSTEM DIAGRAM

R410A

FLOOR type

INVERTER

REFRIGERANT SYSTEM DIAGRAM

2-Way

valve

Strainer

Strainer

3-Way

valve

Muffler

Muffler

4-Way valve

Expansion valve

Heat exchanger

( INDOOR )

Heat exchanger
( OUTDOOR )

(4Pass)

Compressor

Cooling
Heating

AG*V12LAC / AO*V12LAC
AG*V14LAC / AO*V14LAC

Models : AG*V09LAC / AO*V09LAC

03-01

(2Pass)

4 . CIRCUIT DIAGRAM

R410A

FLOOR type

INVERTER

CIRCUIT DIAGRAM

Models : AG*V09LAC / AO*V09LAC

AG*V12LAC / AO*V12LAC

04-01

INDOOR UNIT

OUTDOOR UNIT

CIRCUIT DIAGRAM

Models : AG*V14LAC / AO*V14LAC

04-02

INDOOR UNIT

OUTDOOR UNIT

5 . DESCRIPTION OF EACH
CONTROL OPERATION

R410A

FLOOR 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

air flow

maximum
frequency

maximum
frequency

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

( 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 .

05-01

E zone

F zone

10°C

0°C

12°C

2°C

AG*V09LAC

18Hz

18Hz

18Hz

80Hz 96Hz

70Hz 90Hz

58Hz 90Hz

AG*V12LAC

AG*V14LAC

Hi Me Lo Quiet

A zone

96Hz 61Hz 51Hz 33Hz
96Hz 61Hz 51Hz 33Hz

51Hz 33Hz

B zone
C zone

96Hz 61Hz

Upper&
Lower
air flow

Upper
air flow

D zone

64Hz 42Hz 36Hz 27Hz

E zone

64Hz 42Hz

36Hz

27Hz

F zone

A zone
B zone
C zone
D zone
E zone
F zone 64Hz

42Hz

36Hz 27Hz
96Hz 61Hz 45Hz 33Hz
96Hz 61Hz 45Hz 33Hz

45Hz 33Hz

96Hz 61Hz
64Hz 36Hz 36Hz 27Hz
64Hz 36Hz

36Hz

27Hz

64Hz

36Hz

36Hz 27Hz

* 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.

Upper & Lower

Upper

Upper & Lower

Upper

AG*V09/ 12LAC

Hi Me Lo Quiet

A zone

90Hz 45Hz 42Hz 30Hz
90Hz 45Hz 42Hz 30Hz

42Hz 30Hz

B zone
C zone

90Hz 45Hz

Upper&
Lower
air flow

Upper
air flow

D zone

58Hz 38Hz 34Hz 24Hz

E zone

58Hz 38Hz

34Hz

24Hz

F zone

A zone
B zone
C zone
D zone
E zone
F zone 58Hz

38Hz

34Hz 24Hz
90Hz 45Hz 34Hz 24Hz
90Hz 45Hz 34Hz 21Hz

34Hz 21Hz

90Hz 45Hz
58Hz 34Hz 30Hz 21Hz
54Hz 34Hz

30Hz

21Hz

54Hz

34Hz

30Hz 21Hz

AG*V14LAC

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.

Outside air
temperature

Outside air
temperature

19°C

C zone

17°C

14°C

B zone

12°C

A zone

AA zone

7°C

5°C

* When the room temperature is between +2°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.

05-02

minimum
frequency

air flow

maximum
frequency

AG*V09LAC

18Hz

18Hz

130Hz

119Hz

AG*V12LAC

AG*V14LAC

Hi Me Lo Quiet
130Hz 96Hz 57Hz 45Hz
130Hz 96Hz 64Hz 51Hz

80Hz 68Hz

130Hz 96Hz

Upper&
Lower
air flow

Upper
air flow

130Hz 96Hz 80Hz 68Hz
130Hz 96Hz 48Hz 33Hz
130Hz 96Hz 64Hz 45Hz

80Hz 51Hz

130Hz 96Hz
130Hz 96Hz 80Hz 68Hz

AA zone
A zone
B zone
C zone
AA zone
A zone
B zone
C zone

Upper & Lower

Upper

Upper & Lower

Upper

AG*V09/ 12LAC

Hi Me Lo Quiet
119Hz 90Hz 54Hz 30Hz
119Hz 90Hz 70Hz 38Hz

70Hz 45Hz

119Hz 90Hz

Upper&
Lower
air flow

Upper
air flow

119Hz 90Hz 70Hz 54Hz
119Hz 90Hz 38Hz 30Hz
119Hz 90Hz 42Hz 38Hz

49Hz 38Hz

119Hz 90Hz
119Hz 90Hz 54Hz 45Hz

AA zone
A zone
B zone
C zone
AA zone
A zone
B zone
C zone

AG*V14LAC

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 Fig 3. However, after the compressor is driven, the outdoor unit shall
run at INITIAL frequency as shown in the Table 3 for a minute.

room
temperature

room
temperature

Ts+1.5°C

Ts+0.5°C

Compressor

ON

OFF

Indoor fan

Dry air flow

S-Lo

OFF

Ts- 0.5°C

Ts- 1.5°C

( Table 3 : Compressor frequency )

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

( Fig.4 : Indoor Fan Control )

05-03

10 30 60 180 60 180 60 10 30

(SEC)

INITIAL
frequency

AG*V09LAC

56Hz

40Hz

AG*V12LAC

AG*V14LAC

AG*V09LAC
AG*V12LAC

AG*V14LAC

X zone

J zone

Y zone

X zone J zone Y zone

A,B,C

33Hz 25Hz 0Hz

25Hz 0Hz

D,E,F
A,B,C
D,E,F

27Hz

21Hz 18Hz 0Hz

air flow

Indoor zone

*Outdoor
zone

Upper
air flow

Upper
air flow

*Refer to Fig.1 for "outdoor zone".

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 upper fan 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.4 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 COOING 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 )

05-04

5. INDOOR FAN CONTROL

(1).Fan speed

( Table 5 : Indoor Fan Speed )

(2).FAN OPERATION

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.

05-05

AG*V09/ 12LAC

Operation mode

Air flow mode

Speed (rpm)

Hi 1240/ 1040 1280/ ---

1040/ 880 1080/ ---

660/ 560 680/ ---

840/ 700 870/ --­ 660/ 560 680/ --­ 660/ 560 680/ --­ 660/ 560 680/ --­1190/ 1000 1230/ --­1000/ 850 1030/ --­ 820/ 690 850/ ---

---- / ---- 680/ ---

Me

Lo

Heating

Quiet

Hi

Me

Lo

Quiet

Cool air prevention

S-Lo

Dry

Cooling
Fan

Upper& Lower
air flow mode

Upper
air flow mode

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)
(Upper/ Lower)

AG*V14LAC

Operation mode

Air flow mode

Speed (rpm)

Hi 1330/ 1120 1370/ ---

1100/ 930 1130/ ---

660/ 560 680/ ---

860/ 730 890/ --­ 660/ 560 680/ --­ 660/ 560 680/ --­ 660/ 560 680/ --­1330/ 1120 1370/ --­1100/ 930 1130/ --­ 890/ 750 890/ ---

---- / ----

680/ ---

Me

Lo

Heating

Quiet

Hi

Me

Lo

Quiet

Cool air prevention

S-Lo

Dry

Cooling
Fan

Upper& Lower
air flow mode

Upper
air flow mode

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)

(Upper/ Lower)
(Upper/ Lower)

(3).COOLING OPERATION

Switch the airflow [AUTO], and the (Fig.6)
indoor fan motor will run according airflow change - over ( Cooling:AUTO )
to a room temperature, as shown in When the room
Figure 6. temperature rises
On the other hand, if switched in
[HIGH] [QUIET], the indoor motor

+2.5°C

will run at a constant airflow of [COOL]

operation modes QUIET, LOW, MED,
HIGH, as shown in Table 5. +1.5°C

+1°C

LOW mode

When the room

temperature lowers

(Room temperature) D (Setting temperature)

(4).DRY OPERATION

(5).HEATING OPERATION

Switch the airflow [AUTO], and the (Fig.7)
indoor fan motor will run according airflow change - over ( Heating:AUTO)
to a room temperature, as shown in When the room
Figure 7. temperature rises
On the other hand, if switched

LOW mode

[HIGH] [QUIET], the indoor motor -1°C

will run at a constant airflow of [HEAT]

-1.5°C

operation modes QUIET, LOW, MED,
HIGH, as shown in Table 5. -2°C

-2.5°C

HIGH mode

When the room

temperature lowers

(Room temperature) D (Setting temperature)

(6).COOL AIR PREVENTION CONTROL (Heating mode)

Indoor heat exchanger Indoor heat exchanger
temperature temperature

42°C

Hi

39°C

Me

37°C

Lo

Cool air prevention

30°C

S-Lo

Refer to the table 4.
Durring the dry mode operation, the fan speed
setting can not be changed.

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)

05-06

34°C

24°C

29°C

31°C

HIGH mode

MED mode

+2°C

MED mode

6. OUTDOOR FAN CONTROL

Cooling Dry Heating

AG*V09LAC
AG*V12LAC

800/ 760/ 470

860/ 820/ 670/ 500

470/ 250

500/ 280

500 150 (by 1rpm or more)

AG*V14LAC

( Table 6 : 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)/200(E,F 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 7 without relating to the compressor frequency.

05-07

A - C

D

E

F

A - C

D

E

F

ZONE

760/ 470

760/ 470

500

500

760/ 680/ 470

820/ 750/ 670/ 550/ 450

Refer to Fig1.

(rpm)

*

Outdoor temperature falls, and if it becomes E and F zone(Refer to Fig1), rotations of fan speed
will fall.

( Table 7 : Outdoor fan speed after the defrost )

AG*V09/ 12LAC

AG*V14LAC

Min

900rpm

950rpm

(1). Fan Speed

470 150 (by 1rpm or more)

300 150 (by 1rpm or more)

300 150 (by 1rpm or more)

7. LOUVER CONTROL

(1). VERTICAL LOUVER CONTROL

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

Use the air direction adjustments within the ranges shown above.

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

Cooling / Dry mode Horizontal flow
Heating mode Downward flow

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

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

(Function and Operation Range)

(Fig 9: Air Direction Range)

(2). SWING OPERATION

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

(Swinging Range)

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

05-08

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 8.

Cooling Heating

Min Max Min Max

Dry

AG*V09/ 12LAC 18Hz 96Hz 18Hz 130Hz 33Hz
AG*V14LAC 18Hz 90Hz 18Hz 119Hz 24Hz

AG*V09/ 12LAC 56Hz 74Hz 87Hz 97Hz 108Hz 119Hz

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

(Table 8 : 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

05-09

AG*V14LAC 40Hz 59Hz 72Hz 80Hz 101Hz 110Hz

60sec 40sec 40sec 60sec 150sec 60sec

AG*V09/ 12LAC
AG*V14LAC

9. TIMER OPEARTION CONTROL

(1). OPEARTION FREQUENCY RANGE

The table 9 shows the available timer setting based on the product model.

ON TIMER / OFF TIMER PROGRAM TIMER SLEEP TIMER

AG*V09/ 12/ 14LAC

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

Operation mode

Stop mode

Set time of timer

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

Operation mode

Stop mode

Set time of timer

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

Operation mode

Operation will start from the timer setting (either OFF timer or ON timer) whichever is closest

to the clock's current timer setting. The order of operations is indicated by the arrow in the remote
control unit's display.
SLEEP timer operation cannot be combined with ON timer operation.

(Table 9 : Timer Setting)

(2). PROGRAM TIMER

Stop mode

Stop mode

Stop mode

Operation mode

Operation mode

Set time

Set time Set time Set time

05-10

(3). 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

05-11

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 operation 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 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

The test operation mode is released if 60 minutes have passed after setting up the test operation.

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

13. FOUR-WAY VALVE EXTENSION SELECT

14. AUTO RESTART

05-12

10°C HEAT

15. MANUAL AUTO OPERATION (Indoor unit body operation)

If MANUAL AUTO Button is set, the operation is controlled as shown in Table 10.
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 temperature 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 temperature or greater, preheating
is ended.

AG*V09/ 12/ 14LAC

AG*V09/ 12LAC

870 rpm

36Hz

(Table 10)

(No timer setting available)

17. COMPRESSOR PREHEATING

(Table 11 : Preheating Operation / Release Temperature)

Temperature

Temperature

5°C

7°C

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 3 cycles of [Fan operation 3 minutes / Heating operation
2 minutes], and Fan operates for 33 minutes at last before ending the air conditioner operation.
(It takes 48 minutes to complete the coil-dry operation.)

(Table 12 : COIL-DRY Operating Functions)

Indoor Fan Speed
(Upper air flow only)

Compressor
Frequency

Louver
Position

Main Unit
Indication

OPERATION : ON
Other indication : OFF

05-13

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 Table11.

AG*V14LAC

890 rpm

24Hz

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 13.

(Table 13 : Condition of starting Defrost Operation)

AG*V09/12/14LAC

AG*V09/12/14LAC

AG*V09/ 12LAC

AG*V14LAC

1 time defrosting
after starting
operation

ST

Compressor operating time

Less than 20 minutes 20 to 60 minutes

60 minutes to 4 hours

After 4 hours

Does not operate

- 9°C

- 5°C

- 3°C

Defrosting after 2
time upon starting
operation

Less than 35 minutes

35 minutes to
4 hours

Does not operate

Compressor operating time

After 4 hours

- 3°C

- 6°C

(2). CONDITION OF THE DEFROST OPERATION COMPLETION

Defrost operation is released when the conditions become as shown in Table 14.

(Table 14 : Defrost Release Condition)

Release Condition

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

Outdoor heat exchanger temperature sensor value is higher than 10°C or
Compressor operation time has passed 15 minutes.

05-14

Defrost Flow Chart

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

(Not defrosted for 10 minutes)

(In case of 1st defrost) (In case of 2nd and later defrost)

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

Heating operation start : Compressor ON

Compressor integrating

operation:
Over 20 minutes to
below 60 minutes

Compressor integrating

operation:
Over 60 minutes to
below 240 minutes

Compressor integrating

operation:
Over 240 minutes

Compressor integrating

operation:
Over 35 minutes to
below 240 minutes

Compressor integrating

operation:
Over 240 minutes

Outdoor heat exchanger

temperature:
Below -9°C

Outdoor heat exchanger

temperature:

Outdoor heat exchanger

temperature:

Outdoor heat exchanger

temperature:

Outdoor heat exchanger

temperature:

Defrost start

Defrost Indicator:

[Operation lamp]

7 sec ON / 2 sec OFF

Outdoor heat exchanger temperature:

Over 10°C / 16°C

or
Compressor ON time:
Over 15 minutes

Defrost end

Below -5°C

Below -3°C

Below -6°C

Below -3°C

05-15

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.

AG*V09/ 12LAC

AG*V14LAC

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]

Outdoor heat exchanger temperature:

Over 10°C / 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.

Outdoor heat exchanger temperature sensor value is higher than 10°C or
Compressor operation time has passed 15 minutes.

7 sec ON / 2 sec OFF

05-16

21. AIR OUTLET SELECTION ( DAMPER CONTROL )

(1). How to set to blow out air from the upper and lower air outlets

(2). Description of operation

05-17

With this function , air come out simultaneously from the upper and lower air outlets so that
the room can be cooled or heated effectively.
This function is set using the switch behind the front grille of the Indoor unit.
(This function is available in cooling and heating operation.)

Set the air outlet selection switch to

Air blows out automatically from the upper and lower air outlets
as shown in the table 15 below.

NOTE:

Set the air outlet selection switch to the end.
Otherwise, air outlet cannot be selected as intended.

Operation COOLING Mode DRY Mode HEATING Mode

Air flow

Conditions

Upper and lower
air flow

Upper air flow Upper air flow

only

Upper and lower
air flow

Upper air flow

Room tempera­ture and set tem­perature are dif­ferent.

Room tempera­ture is close to set
temperature, or
the air conditioner
has operated for
1hour.

_

Air flow tempera­ture is high.

Air flow tempera­ture is low.
(During defrost­ing operation,
start of operation,
etc.)

Make sure the lower air outlet is not choked with foreign matters, causing abnormal operation to damper.

When the OPERATION Indicator Lamp and the 10°C HEAT Indicator Lamp flashes, the operation can be
maintained temporary by changing of air outlet selection switch to , closing the damper completely and
press the START/ STOP button.
(If the damper does not close automatically, close the damper manually and fix the position by an adhesive tape etc.)
The unit operates almost the same as upper air flow operation, however the indicator lamp flashes continuously
if same symptom is detected again.

(Fig.11)

In Cooling mode

When the room
temperature rises

+ 7°C

When the room
temperature lowers

(Room temperature) D (Setting temperature)

Upper & Lower
air flow

Upper air flow

+ 2°C

( Table 15 : Damper control )

22. 10°C HEAT OPERATION

05-18

(Fig.12)

In Heating mode

44°C

Indoor heat exchanger
temperature

Upper & Lower
air flow

Upper air flow

35°C

The 10°C HEAT operation functions by pressing 10°C HEAT button on the remote controller.
The 10°C HEAT operation is almost the same operation as below settings.

(3). How to set to blow out air from the upper air outlet only

Set the air outlet selection switch to

mode HEAT

setting temperature 10°C

louver position (refer to 7.LOUVER CONTROLL)

fan mode AUTO

After 48hours of 10°C HEAT operation without Monitor operation,
fan mode will be fixed at HIGH speed.

( Table 16 )

23. VARIOUS PROTECTIONS

(1). DISCHARGE GAS TEMPERATURE OVERRISE PREVENSION CONTROL

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

AG*V09/ 12/ 14LAC 104°C 101°C 110°C

09/ 12LAC

14LAC

4.0A / 3.5A

5.0A / 4.5A

6.5A / 6.0A

4.5A / 4.0A

6.0A / 5.5A

8.5A / 8.0A

6.5A / 6.0A

8.0A / 7.5A

8.5A / 8.0A

9.5A / 9.0A

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 17 : 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 18 : Current Release Operation Value / Release Value)

[ Heating ]

[ Cooling / Dry ]

OT : Outdoor Temperature

OT : Outdoor Temperature

05-19

7.0A / 6.5A

9.0A / 8.5A

10.5A / 10.0A

13.0A / 12.5A

OT (Control / Release)

17°C

12°C

5°C

OT (Control / Release)

17°C

12°C

5°C

46°C

40°C

OT (Control / Release)

46°C

40°C

OT (Control / Release)

09/ 12LAC

14LAC

(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 .

A - D

E, F

(Table 19 : Anti-freezing Protection Operation / Release Temperature)

TemperatureTemperature

4°C

4°C

7°C

13°C

(4). COOLING PRESSURE OVERRISE PROTECTION

(Table 20 : Cooling Pressure Over Rise Protection Function Temperature)

When the outdoor unit heat exchange sensor temperature rises to temperature 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.

05-20

[ AG*V09/ 12LAC ]

[ AG*V14LAC ]

46Hz or greater 45Hz

39Hz or greater 38Hz

39 45Hz

38Hz

26 38Hz 25Hz

19 29Hz 18Hz

18 25Hz OFF

OFF

Indoor heat exchange
temperature

[ Control System ]

Temperature

Temperature

Refer to below

Temperature

Temperature

The compressor frequency is
precisely controlled so that
it does not exceeds Temperature .

It returns to the normal operation

Compressor Operation

18Hz

30

Frequency down every 120 sec

Frequency down every 120 sec

AG*V09/ 12/ 14LAC 55°C

Temp

Temp Temp Temp

53°C 52°C 50°C

AG*V09/ 12/ 14LAC 67°C

Temperature

6 . REFRIGERANT CAUTION -R410A-

R410A

FLOOR type

INVERTER

1. R410A TOOLS

Gauge manifold . . . . . . . . . . . . . . . . . . . . . (Fig.4-1)

Since the normal pressure is high, the connection pipe size
is also different.

Charge hose . . . . . . . . . . . . . . . . . . . . . . . (Fig.4-2)

Refrigerant cylinder . . . . . . . . . . . . . . . . . (Fig.4-3)

Confirm the refrigerant type before charging. Always
charge liquid-phase refrigerant.

Electronic balance for refrigerant

charging . . . . . . . . . . . . . . . . . . . . . . . . . . . (Fig.4-4)

Electronic balance is recommended as in the case of
R410A.

Vacuum pump with adapter to prevent

reverse flow . . . . . . . . . . . . . . . . . . . . . . . .(Fig.4-5)

Conventional pump can be used.

Vacuum holder . . . . . . . . . . . . . . . . . . . . . (Fig.4-6)

Conventional pump can be used if adapter for preventing
vacuum pump oil from flowing back is used.

Gas leakage tester . . . . . . . . . . . . . . . . . . (Fig.4-7)

Exclusive for HFC

Refrigerant cleaner . . . . . . . . . . . . . . . . . . (Fig.4-8)

Brown paint as designated by the ARI, USA

Flare tool . . . . . . . . . . . . . . . . . . . . . . . . . . (Fig.4-9)

Torque wrench . . . . . . . . . . . . . . . . . . . . (Fig.4-10)

Refrigerant recovering

equipment (Collector) . . . . . . . . . . . . . . (Fig.4-11)

The type which can be used for any refrigerant is available

Nitrogen cylinder . . . . . . . . . . . . . . . . . . . (Fig.4-12)

This prevents an oxide film from forming in the pipe silver­alloy brazing work by turning the air out of the pipe and
preventing the inside combustion.

Safety charger . . . . . . . . . . . . . . . . . . . . . (Fig.4-13)

It is always compulsory to change the liquid, because
R410A is a mixed refrigerant and there is some fear that a
mixing ratio changes. In order to avoid the refrigerant from
returning to the compressor in a liquid state, the refrigerant
can be charged instead of giving a load to the compressor
with a safety charger.

Control valve . . . . . . . . . . . . . . . . . . . . . . (Fig.4-14)

The control valve prevents the refrigerant from spouting
when it is removed, as the charging hose side and the ser­vice port side are possible to open and close at the same
time.

Thermistor vacuum gauge . . . . . . . . . . . (Fig.4-15)

To remove moisture from the refrigerating cycle complete­ly, it is necessary to perform appropriate vacuum drying.
For that reason, vacuum conditions can be confirmed cer­tainly.

Vacuum valve . . . . . . . . . . . . . . . . . . . . . (Fig.4-16)

This valve builts in a check valve, and it is easily possible
to vacuum a refrigerating cycle or check for degree of vac­uum with it.

TOOLS AND EQUIPMENT (R410A)

Gauge Manifold

R410A

R22, R407C

High
pressure
gauge

Compond
gauge

Port size

-0.1 5.3
Mpa

-0.1 3.8
Mpa

1/2UNF
5/16"

-0.1 3.5
Mpa

-0.1 1.7
Mpa

7/16UNF
1/4"

*

1

Charge hose

R410A

R22, R407C

Normal
pressure

Port size

5.1 Mpa

27.4 Mpa

1/2UNF

3.4 Mpa

17.2 Mpa

7/16UNF

*

2

Breaking
pressure

This air conditioner used R410A.
For installation and servicing, it is necessary to prepare the
tools and machines that are different from the previous
refrigerant.

Mark shows the exclusive use for R410A.

The specification of the gauge is different due
to higher pressure.
The size of connection pipe is also different to
prevent mis-use.

The shape of flare is different for
high pressure condition.

06-01

Gas charging

Vacuuming

Piping work

Pressure control and
Circuit switching

Charge hose
Fig.4-2

Outdoor unit

Electronic charging
scale Fig.4-4

Vacuum pump Fig.4-5

Thermistor vacuum gauge Fig.4-15

Vacuum
Valve Fig.4-16

Safety charger Fig.4-13

Control Valve
Fig.4-14

Vacuum holder Fig.4-6

Leakage tester Fig.4-7

Cleaner Fig.4-8

Collector Fig.4-11

Nitrogen Cylinder
Fig.4-12

Torque wrench
Fig.4-10

Flare tool
Fig.4-9

Gauge manifold
Fig.4-1

Fig.4-3

Refrigerant cylinder

Vacuum control

Low pressure

High pressure

side

side

2. PRECAUTION FOR INSTALLATION

06-02

Precaution for installation

The pipe must be properly pressure rated for R410A
The pipe must be an air-conditioning refrigerant pipe.

Flare and flare nuts

Diameter 1/4”(6.35mm) 3/8 ” (9.52mm) 1/2 ” (12.7mm)

Refrigerant

R410A

R22

/R407C

R410A R410A

A 9.1 9.0 13.2 13.0 16.6

16.2

B 13 12 20 15 13 20

C 12 11 16 12.5 19 16

Nut width 17 22 26 24

Always use the flare nut that is packed
with the product.

Do not use existing (for R22) pipes

•

Be sure to use new pipes when replacing
conventional (R22) model with HFC
(R407C, R410A) model.

•

If you use existing pipes, it may cause
resolution of compressor oil by remaining
mineral oil.

3/8” (15.88mm)

R410A

22

29

19.7

25

R22
/R407C

R22
/R407C

R22
/R407C

19.4

23
20

27

3/4” (19.05mm)

R410A

24

36

24

29

R22
/R407C

23.7

29
24

Material

Nominal diameter

(in)

1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1 1/8" 1 1/4" 1 1/2"1 3/8"1"

6.35 9.52 12.70 15.88 19.05 22.22 28.58 31.75 38.1034.9225.40

Outside diameter

(mm)

Wall thickness

(mm)

0.8 0.8 0.8 1.0 1.2 1.0 1.0 1.1 1.31.21.0

1) Allowable tensile stress 33 (N/mm );

>
=

2

2) Allowable tensile stress 61 (N/mm ); 3) Design pressure 4.2MPa.

>
=

2

JIS H3300-C1220T-H or equivalent

2)

COPPER

JIS H3300-C1220T-O or equivalent

1)

COPPER

3)

Pipe diameter, recommended material and wall thickness

A

C

B

Be careful not to mix moisture and

contamination into the pipe

Moisture and contamination

in the pipe is a cause of
trouble.

Air purge

Always use a

vacuum pump

to purge air.

Refrigerant charge

Do it always from the liquid phase
side.

Don't charge from the gas phase side.

Compressor oil is changed

Be careful to handle synthetic oil, since it
resolves easily by moisture and

contamination.

Don't mix new synthetic oil and mineral oil.

It may cause trouble.

We developed new synthetic oil, since HFC
refrigerant doesn't dissolve in mineral (for R22)oil.

06-03

3. PRECAUTION FOR SERVICING

Feature 1 Refrigerant oil is different from before.

Refrigerant oil for
New Refrigerant

Synthetic oil

Ether

Esther

Different point from
previous one

Previously it was
mineral oil.

Absorbent character
is high.

Contamination occurs
when mixed withe other
kind of oil.

Use the gauge manifold and charge hose
for New Refrigerant(HFC), which shall
be segregated from those of R22.

Attach the stop valve on the vacuum pump
and avoid the oil from reverse frow.

It is necessary to use the vacuum pump
which can obtain the high vacuum condition.

Precaution on Tools

Feature 2 New Refrigerant has Approx 1.6 times higher pressure than previous refrigerant.

R410A

High Pressure

Different point from
previous one

Diameter of Service port
has been changed from
1/4 Flare to 5/16 Flare.

It requires the gauge manifold and charge
hose exclusively for R410A.

It requires the flare tool and torque wrench
that satisfies New JIS standard.

Precaution on Tools

R410A R22

1.6 times of R22.

JIS standard of flare
process It became lager

To keep thethickness of
copper tube.
(1/4,3/3=more than 0.8mm)

Previous flare tool + flare adapter can be used as well.

06-04

4. NEW REFRIGERANT R410A

What is HFC ?

Phase-out schedule of HCFC

according to Montreal protocol

1996 20102000 2004 2015 2020 2030

60

40

20

100

(Year)

(%)

80

(HCFC consumption of 1989) +

(CFC consumption of 1989) x 2.8%

65%

35%

10%

0.5%

started control

only service use

total abolition

100% =

0

*

06-05

Ozone Layer depleting mechanism

CFC

CFCl

2

Cl Ozone

(O3)

O

2

ClO

Cl

sunbeam

What is CFC and HCFC?

CFC : Chloro-Fluoro-Carbon

High ODP( ozone depletion potential ) chemical compound, including chlorine. (ODP:0.6-1.0)
For example : R12 (for refrigerator and car air-conditioner)

Low ODP chemical compound, including chlorine and hydrogen. (ODP:0.02-01)

HCFC : Hydro-Chloro-Fluoro-Carbon

For example : R22 (for air-conditioner)

R134a (for Car air conditioner)

HFC3 : Hydro-Fluoro-Carbon

R407C (for air conditioner)

Refrigerant characteristics

R22

Composition

(wt%)

R22

(100)

Boiling Point

- 40.8

Behavior ---

Pressure at 54.5

C

(kPa)

2,151

Temperature Glide

(deg)

0

ODP 0.055

R407C

R32/R125/R134a

(23/25/52)

- 43.6

zeotrope

2,262

5.4

0

R410A

R32/R125

(50/50)

- 51.4

near azeotrope

3,406

0.11

0

06-06

Summary of R407C and R410A characteristics

Pressure (Mpa) Temp ( C)

2.20 37.9

2.25 38.7

2.30 39.6

2.35 40.5

2.40 41.3

2.45 42.1

2.55 43.8

2.60 44.6

2.65 45.3

2.70 46.1

2.75 46.8

2.80 47.6

2.85 48.3

2.90 49.0

2.95 49.8

3.00 50.5

3.05 51.2

3.10 51.9

3.15 52.6

3.20 53.2

3.25 53.9

3.30 54.6

3.35 55.3

3.40 55.9

3.45 56.5

3.50 57.1

2.55 57.8

3.60 58.4

3.65 59.0

3.70 59.6

3.75 60.2

3.80 60.8

3.85 61.4

3.90 52.0

3.95 62.5

4.00 63.1

4.05 63.6

4.10 64.2

4.15 64.8

Temp ( C) Pressure (Mpa)

39 2.27
40 2.32
41 2.38
42 2.44
44 2.57
45 2.63
46 2.69
47 2.76
48 2.83
49 2.90
51 3.04
52 3.11
53 3.18
54 3.26
56 3.41
57 3.49
58 3.57
59 3.65
61 3.82
62 3.90
63 3.99
64 4.08

Desighed pressure of R410A refrigerant

< Pressure Temp >

Relation between R410A condensing temperature and saturated pressure.

< Temp Pressure >

Advantage

Disadvantage

Suitable for

R410A

higher system

performance

Near-Azeotropic

refrigerant

1.6 times higher

(difficult to design against

pressure resistance)

Small Air-Conditioners

pressure than R22

R407C

similar pressure as R22

(possible to design

large equipment)

Zeotropic refrigerant

(handle with care)

Large Air-Conditioners

*

06-07

OIL

• Use new synthetic oils such as ester because HFC series refrigerant has less solubility with mineral oils
conventionally used for R22.

• As these new synthetic oils are easily influenced by moisture and dusts, they must be treated more care-

fully than the conventional lubricating oils.

CAUTION

For installation/servicing, take more precautions than the case of conventional refrigerants to avoid moisture
and dusts entering the refrigerant circuit. Also, for storing parts, more precautions must be taken.

2, 3-WAY VALVE

• Review material O-ring, valve core seal for securing suitability with oil.

CAUTION

Check if the valve is suitable for the refrigerant (model) when replacing.

CAUTION

Check if the compressor is suitable for the refrigerant (model) when replacing. Complete welding within 15
minutes after opening the cap when replacing.

COMPRESSOR

• Use better grade of material for sliding parts for securing good lubrication of sliding part as HFC

refrigerant does not contain chloride.

• Review insulating materials

• Increase pressure resistance strength

CAUTION

During storage, due care must be taken so that foreign matters such as dust and water do not enter.

HEAT EXCHANGER

• Review the water,contaminants controlling level

• Use thinner tube to increase pressure Increase capacity for resistance strength (only outdoor unit)

improving performance

CAUTION

Check if the valve is suitable for the refrigerant (model) when replacing.

4-WAY VALVE

• Review materials

5. DEFFERENCE FROM CONVENTIONAL MODEL (R22) AND PRECAUTIONS

06-08

7 . TROUBLE SHOOTING

R410A

1. When the unit does not operate at all (Operation lamp and Timer lamp do not light up)

2. Self Diagnosis Function (Either Operation lamp or Timer lamp is blinking)
* How to operate the self-diagnosis function
* Self- diagnosis table and Check points

3. Trouble shooting method
* Serial signal check
* IPM protection check
* Refrigeration cycle diagnosis

FLOOR type

INVERTER

When does not operate at all (Operation Lamp and Timer Lamp do not light up)

[Check Point]

(1) Is the input power voltage from the exclusive circuit AC outlet normal?
(2) Is the AC plug inserted to the AC outlet securely and not loose?

(4) Check if each connector is inserted securely.

[Checking Flow Chart]

YES (AC220/230V)

YES (AC220/230V)

YES (AC208/230V)

( L1, L2, D1 defective )

( IC8, T1, IC15, IC19 defective )

YES (DC5V)

YES (DC5Vp-p, Pulse wave of 50 or 60Hz)

Controller PCB defective

NO

NO

NO

NO

NO

NO

NO

( F1, VA1 defective )

07-01

(3) Does not connected cable do wrong wiring?

YES (DC260 400V)

Is AC input voltage between terminal 1-2 normal ?

Fault of an input power supply.

Is AC voltage between 4pin of TM1 and TM5 normal?

Temp fuse defective

Is AC voltage between VA1 normal?

Switching power circuit

Switching power circuit

Switching power circuit

Is DC voltage between terminals of C9 normal?

Is DC voltage between terminals of C12 normal?

Is DC voltage between terminals of C14 normal?

IC2 defective

Is DC voltage between terminal 3 & 4 of IC26 normal?

IC26 defective

(The power supply is not supplied to an outdoor unit
terminal board.)
(The connection mistake of an outdoor unit terminal board.)
(Outdoor unit F202 open)

YES (DC15V)

NO

Is DC voltage between terminals of C17 normal?

IC20 defective

YES (C7:DC20, C12:DC13.5V 1V)

SELF-DIAGNOSIS FUNCTION

This function memorizes the self-diagnosis function (lamp display) in the in door control P.C.Board
when trouble occurs.
(The memory contents are not destroyed even when the power cord is unplugged from the AC outlet.)

The self-diagnosis function (lamp display) can also be switched between major classification display
and minor classification display and precise diagnosis can be made.

Self-diagnosis function [lamp display] (memory reading)

(1) When error occurs, it is indicated by blinking [Operation lamp (Red)] and [Timer lamp (Green)].
(2) Upon pulling out and inserting the AC plug, the starts to operates from remote control.

(At this state, a normal operation indication is performed.)

(3) By pressing [TEST] button of remote control, [Error Indication] is indicated only

during

[3 minutes ST].

(3 minutes ST : 2 minutes 20 seconds from the timing AC plug is ON)

[Lamp display]

3 minutes delay

Turn off Operating Error Indication Normal indication after

3min.ST

Indication

AC Plug ON Start operation Input TEST signal

How to erase Memory

(1)

(Indoor unit buzzer beeps 3 seconds.)

07-02

While [Error indication] is ON by the self-diagnosis function, the memorized contents can be
erased by pressing [Forced Auto Button] on the main unit.

Self - diagnosis function and Checking points

0.5 sec
2 times

When the indoor unit does not receive the signal for 10 consecutive seconds during the operation
>Permanent stop after 30 seconds.

The outdoor unit does not receive the signal for 10 consecutive seconds from the time when the power relay was ON.
>Outdoor unit stops.

OFF OFF

OFF

OFF

OFF

OFF

OFF

OFF

07-03

Serial forward transfer
error
during the operation

Serial forward transfer
error
at starting up operation

Serial reverse transfer
error
during the operation

Serial reverse transfer
error
at starting up operation

At the start up, the indoor unit does not receive the signal for 10 consecutive seconds from the time when the power relay was ON.
>Permanent stop after 30 seconds.

[Diagnosis Point]

Check the indoor /outdoor cable connection (in order). If the cable wiring is not abnormal, measure the voltage of the outdoor
unit terminals and diagnose the defective location.
(Refer to the after mentioned [Serial Signal Diagnosis] for the voltage measuring method and diagnosis method.)

[Diagnosis Point]

Check the indoor /outdoor cable connection (in order). If the cable wiring is not abnormal, measure the voltage of the outdoor
unit terminals and diagnose the defective location.
(Refer to the after mentioned [Serial Signal Diagnosis] for the voltage measuring method and diagnosis method.)

[Diagnosis Point]

Check the indoor /outdoor cable connection (in order). If the cable wiring is not abnormal, measure the voltage of the outdoor
unit terminals and diagnose the defective location.
(Refer to the after mentioned [Serial Signal Diagnosis] for the voltage measuring method and diagnosis method.)

When the outdoor unit does not receive the signal for 10 consecutive seconds during the operation > Outdoor unit stops.

[Diagnosis Point]

Check the indoor /outdoor cable connection (in order). If the cable wiring is not abnormal, measure the voltage of the outdoor
unit terminals and diagnose the defective location.
(Refer to the after mentioned [Serial Signal Diagnosis] for the voltage measuring method and diagnosis method.)

The room temperature thermistor detective a abnormai temperature when the power was turned on.
> Remote control does not operate.

[Diagnosis Point]

Check thermistor resistance value (Refer to "Themistor characteristics table").
Controller PCB defective.

The detection value of the indoor heat exchanger thermistor is either open or shoted when the power is ON.
> Remote control dose not operate.

[Diagnosis Point]

Check thermistor resistance value (Refer to "Themistor characteristics table").
Controller PCB defective.

Room temperature
thermistor defective

Indoor heat exchanger
thermistor error

0.5 sec
3 times

0.5 sec
4 times

0.5 sec
5 times

Wired remote controller
error

0.5 sec
8 times

0.5 sec
2 times

0.5 sec
3 times

0.5 sec
2 times

When the communication is cut off longer than 1 minutes upon connection.

> Compressor , Outdoor fan : OFF
(If the communication becames normal, they automatically resume operation.

[Diagnosis Point]

Check wiring
Controller PCB failure

01

01

13

13

00

02

04

Error Indication

Operation

(RED)

Timer

(GREEN)

10°C HEAT
(ORANGE)

Error

(Protection)

Diagnosis Method

Wired remote
controller

0.5 sec
2 times

The detection value of the outdoor heat exchanger thermistor is either open or shorted.
> Compressor, outdoor fan : OFF (It automatically releases when the normal value is detected.)

The detection value of the outdoor temperature thermistor is either open or shorted.
> Compressor, outdoor fan : OFF (It automatically releases when the normal value is detected.)

0.5 sec
3 times

07-04

MANUAL AUTO switch
error

Outdoor temperature
thermistor error

Outdoor heat
exchanger thermistor
error

Discharge thermistor
error

The detection value of the discharge thermistor is either open or shorted.
> Compressor, outdoor fan : OFF (It automatically releases when the normal value is detected.)

[Diagnosis Point]

Check thermistor resistance value (Refer to "Themistor characteristics table").
Controller PCB defective.

[Diagnosis Point]

Check thermistor resistance value (Refer to "Themistor characteristics table").
Controller PCB defective.

[Diagnosis Point]

[Diagnosis Point]

Check thermistor resistance value (Refer to "Themistor characteristics table").
Controller PCB defective.

MANUAL AUTO switch becomes ON for 30 consecutive seconds.
> It indicates the error but the operation continues.

[Diagnosis Point]

Check if forced auto switch is kept pressed.
Forced auto switch defective.
Controller PCB defective.

0.5 sec
3 times

0.5 sec
4 times

0.5 sec
2 times

0.5 sec
4 times

Compressor
temperature
thermistor error

0.5 sec
8 times

The detection value of the compressor thermistor is either open or shorted
> Compressor, Outdoor Fan : OFF (It automatically releases when the normal value is detected.)

Check Thermistor resistance value (Refer to “Thermistor characteristics table”).
Controller PCB defective

0C

06

0A

15

20

Self - diagnosis function and Checking points

OFF

OFF

OFF

OFF

OFF

Error Indication

Operation

(RED)

Timer

(GREEN)

10°C HEAT
(ORANGE)

Error

(Protection)

Diagnosis Method

Wired remote
controller

Abnormal current value of IPM is detected.
> Permanent stop.

07-05

CT error

IPM protection

[Diagnosis Point]

Heat radiation is blocked (inlet/outlet).
Check if outdoor fan is defetcive (does not rotate).
Controller PCB defective (Refer to after mentioned "IPM diagnosis").
Refrigeration cycle defective (Refer to after mentioned "refrigeration cycle diagnosis").

The current value during the operation after 1 minute from starting up the compressor is 0A.
> permanent stop.

[Diagnosis Point]

Controller PCB defective.

The compressor speed does not synchronze with the control signal. (Including start up failure of the compressor).
> permanent stop.

[Diagnosis Point]

Check if 2-way valve or 3-way valve is left open.
Check the compressor (Winding resistance value, loose lead wire).
Refrigeration cycle defective (Refer to after mentioned "refrigerant cycle diagnosis")

Either the outdoor fan motor abnormal current or location error was detected.
> Permanent stop.

[Diagnosis Point]

Fan motor connector loose/ defective contact.
Fan motor defective.
Controller PCB defective.

Compressor location
error

Outdoor fan error
(DC motor)

0.5 sec
2 times

0.5 sec
3 times

0.5 sec
5 times

0.5 sec
6 times

0.5 sec
5 times

17

18

1A

1b

Self - diagnosis function and Checking points

OFF

OFF

OFF

OFF

Error Indication

Operation

(RED)

Timer

(GREEN)

10°C HEAT
(ORANGE)

Error

(Protection)

Diagnosis Method

Wired remote
controller

0.5 sec
2 times

0.5 sec
6 times

Indoor fan lock error The indoor fan speed is 0 rpm after 56 seconds from starting operation or from the time the fan mode was changed.

> Operation stop. (It releases by sending the operation stop signal from the remote controller).

[Diagnosis Point]

Fan motor connector loose /defective contact.
Fan motor defective. (UPPER or LOWER)
Controller PCB defective.

OFF

12

Self - diagnosis function and Checking points

Error Indication

Operation

(RED)

Timer

(GREEN)

10°C HEAT
(ORANGE)

Error

(Protection)

Diagnosis Method

The indoor fan speed is 1/3 of the target frequency after 56 seconds from starting operation or from the time the fan mode was
changed. > Operation stop. (It releases by sending the operation stop signal from the remote controller).

0.5 sec
6 times

07-06

Indoor UPPER fan
speed error

[Diagnosis Point]

Fan motor connector loose /defective contact.
Fan motor defective.
Controller PCB defective.

0.5 sec
3 times

The indoor fan speed is 0 rpm after 56 seconds from starting operation or from the time the fan mode was changed.
> Operation stop. (It releases by sending the operation stop signal from the remote controller).

[Diagnosis Point]

Fan motor connector loose /defective contact.
Fan motor defective.
Controller PCB defective.

Wired remote
controller

OFF

Indoor LOWER fan
lock error

0.5 sec
2 times

OFF

12

12

The indoor fan speed is 1/3 of the target frequency after 56 seconds from starting operation or from the time the fan mode was
changed. > Operation stop. (It releases by sending the operation stop signal from the remote controller).

Indoor LOWER fan
speed error

[Diagnosis Point]

Fan motor connector loose /defective contact.
Fan motor defective.
Controller PCB defective.

0.5 sec
3 times

OFF

12

When damper opening recovery operation repeats 6 times.
> Operation stop. (It releases by sending the operation stop signal from the remote controller).

Damper error

UPPER & LOWER
air flow

[Diagnosis Point]

Obstruction of damper movement.
Check if the switch wire(CN18) is open.

0.5 sec
4 times

OFF

2E

When damper closing recovery operation repeats 6 times.
> Operation stop. (It releases by sending the operation stop signal from the remote controller).

Damper error

UPPER air flow

[Diagnosis Point]

Obstruction of damper movement.
Check if the switch wire(CN18) is open.

0.5 sec
5 times

OFF

2E

When close detecting sw and open detecting sw operates simultaneously.
> Operation stop. (It releases by sending the operation stop signal from the remote controller).

Damper error

[Diagnosis Point]

Check if the switch wire(CN18) is short.

0.5 sec
5 times

OFF

2E

When the OPERATION Indicator Lamp and the 10°C HEAT Indicator Lamp flashes, the operation can be maintained temporary by changing of air outlet selection switch to ,
closing the damper completely and press the START/ STOP button.
(If the damper does not close automatically, close the damper manually and fix the position by an adhesive tape etc.)
The unit operates almost the same as upper air flow operation, however the indicator lamp flashes continuously if same symptom is detected again.

Self - diagnosis function and Checking points

Error Indication

Operation

(RED)

Timer

(GREEN)

10°C HEAT
(ORANGE)

Error

(Protection)

Diagnosis Method

0.5 sec
7 times

07-07

0.5 sec
2 times

0.5 sec
3 times

Wired remote
controller

OFF

0.5 sec
8 times

0.5 sec
4 times

OFF

OFF

0F

24

Discharge temperature
error

The discharge temperature error is activated. > Permanent stop.

[Diagnosis Point]

[Diagnosis Point]

[Diagnosis Point]

Check if 2 way valve or 3 way valve is left open.
Heat radiation is blocked (Inlet/Outlet)
Check if Outdoor Fan is defective (does not rotate).
Refrigeration cycle defective. (Refer to after mentioned “Refrigerant cycle diagnosis”).

Excessive High
Pressure Protection
on Cooling

Excessive high pressure protection on cooling mode has been activated.
> Compressor, Outdoor Fan : OFF (It releases after 3 minute ST)

Heat radiation is blocked (Inlet/Outlet)
Check if Outdoor Fan is defective (does not rotate).
Refrigeration cycle defective. (Refer to after mentioned “Refrigerant cycle diagnosis”).

PFC circuit Error

Excessive voltage of DC voltage on PFC circuit in Inverter PCB is detected, or the excessive current in the circuit is detected.
> Permanent stop.

Controller PCB defective. (Refer to after mentioned “PFC circuit diagnosis”)

25

Serial Signal Diagnosis

[Check Point] Check which has a cause of error, either Indoor unit or Outdoor unit.

* Remove indoor unit front panel and cable xlampers and keep the terminal block clear so that it can be
measured with a meter.

* Remove AC power and reset the power, and press Test Operation switch on remote control.

[Check Procedure]

[Indoor Unit Check]

CAUTION: Keep out hands from terminal base and electrical components. Voltage is
applied on them and you may get electric shock.

NO

YES

07-08

[Outdoor Unit Check]

Indoor unit control unit is normal.

Check outdoor unit control unit.

Check cable wiring of terminal base of indoor
and outdoor unit correctly connected as numbered.

Does voltage AC220 to 230V appear between NO
terminal L and N of indoor unit terminal base?

Check cable wiring of terminal base.

Does indoor unit start to operate? Conduct the inspection on "no operation at all".

Outdoor unit controller PCB board failure.

Measure voltage between terminal N and 3 of
indoor unit terminal base. Is it normal?

Indoor unit controller PCB IC7 failure.

Does voltage AC350 to 415V appear at NO
DC voltage terminal?

Check broken fuse, wiring connection.

Does voltage AC220 to 230V appear between
terminai N and L of outdoor unit terminal base?

Check power supply connection.

NO

NO

NO

NO

YES

YES

YES

YES

YES

IPM Protection

[Checking Points]

Check the following points and locate the cause in the outdoor unit.

[Cause]

(1) Compressor failure
(2) Refrigeration cycle failure
(3) PC Board defective
(4) IPM defective
(5) Incorrect wiring

[First step]

Measure the DC voltage at terminals (between Electrolytic Capacitor and discharge resistance)

in the Inverter Controller Assy, and make sure it is lower than DC5V.

Check point (1)

Check point (2)

Open the Inverter Controller Assy

Yes(Normal)

Go to Check point (2)

and check if there is abnormal points.

No(Abnormal)

Incorrect wiring > Correct and recheck
Parts touched > Correct and recheck

Parts broken > Change the broken part

Check point (3)

Turn on the power and press TEST button

Yes(Rotating)

Go to Check point (3)

on Remote Control.

No(Not rotating)

PCB or Compressor defective

Is the outdoor fan rotating?

Check point (4)

Operate the unit for certain time and

Yes(Operating)

The unit is normal.

check if the compressor is operating.

No(Not operating)

IPM or PCB defective > Replace PCB

If it is higher than 5V, wait until the discharging is over.

Yes(Normal)

No(Abnormal)

IPM defective

Check point (4)

Recheck, is compressor normal?

Yes(Operating)

No(Not operating)

Please redo from the start.
(Refrigerant cycle has the possibility
of abnormalities.)

07-09

1, Remove the lead of compressor.
2, Connect the P to minus and measure the U, V and W.

4, Connect the N to plus and measure the U, V and W.

3, Check the balance of resistance. (+/- 10%)

5, Check the balance of resistance. (+/- 10%)
*0W is failure even when resistance is the same

(The above resistance value is a typical value. There is some distribution. A

Trouble Shooting of Refrigerant Cycle

[Diagnosis Table for Defective Component]

: Item of most possible cause

IPM Protection

Compressor

Location error

Discharge

Temperature Error

Cooling High

Pressure

Protection

Refrigerant leak

Compressor failure(*)

EEV failure (*)

Thermistor failure (*)

(*) Trouble Shooting Method

(1) Checking method of the compressor failure

Insert the AC plug and start up the cooling operation. Input Test operation signal and check if the
compressor operates.
If it does not operate, measure the resistance value of compressor windings between U-V, V-W,
W-U.
If any of the resistance value between U-V, V-W, W-U is not same as others, the compressor is
defective.

Compressor Failure

NORMAL

AG*V09/ 12LAC

AG*V14LAC

Compressor Case Temperature at 20°C: 0.710 ohm

Compressor Case Temperature at 20°C: 0.730 ohm

s it also changes by the
compressor temperature, the measured value may be much different from the above table when
measured right after stopping operation.)

(2) Checking method of EEV failure

- Insert the AC plug and start up the operation. Check if the EEV operates just before compressor is turned

on. (Touch EEV by hand and check it.)
If it does not operate, check if the coil or connector of EEV is removed or loose.

If it operates, check the discharge thermistor / outdoor heat exchanger thermistor / indoor heat

exchanger thermistor. (Refer to (3) for checking method.)

(3) Checking method of Thermistor

- Check each thermistor if it is removed or the connector is loose.

If there is no problem, remove the connector of the thermistor from the PCB and check the resistance
value (refer to the thermitor characteristics table).

07-10

8 . APPENDING DATA

R410A

1. Jumper setting of Indoor unit and Outdoor unit

2. Outdoor unit Pressure Value and Total Electric Current Curve

3. Thermistor Resistance Values

FLOOR type

INVERTER

JP (Jumper) Setting

[Indoor Unit]

AG*V09/ 12/ 14LAC

- Remote control custom code
When multiple number of indoor units are installed in the same room, erroneous receipt of the signal can

be avoided by setting up the remote control custom code separately.
To set up the remote control custom code, always set up the same code on both indoor unit PCB and
remote control PCB.
(When the indoor unit PCB is changed to Code B, it can not receive the signal unless remote control PCB
is also changed to Code B.)

Indoor Unit Remote Control

JM1 (JP)

J4 (JP)

Code A (Default)
Code B

- Auto Restart
It is possible to disengage Auto Restart function if it is not needed.

Indoor Unit

JM2 (JP)
With Auto Restart function
(Default)

Without Auto Restart
function

[Outdoor Unit]

AO*V09/ 12/ 14LAC

- 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.

08-01

JP

JM500 JM103 JM102 JM101

Normal Preheat

09LAC

Higher Preheat

Normal Preheat

12LAC

Higher Preheat

Normal Preheat

14LAC

Higher Preheat

Outdoor Unit Low Pressure Value and Outdoor Total Electric Current Curve (Cooling)

Model Name : AG*V09/ 12LAC

[Condition]

Ambient temperature : Indoor / Outdoor - Same temperature
Amount of refrigerant : Regulation amount
Piping length : 5m (Difference of elevation 1m)

Power voltage : 50Hz - 230V

Operating condition : TEST mode (Cooling), Hi-speed Fan, Upward blowoff position, Front blowoff,
1 fan operating, With deodorizing filter

Measurement method : Low side pressure shall be measured with a pressure gauge from service valve.
Total outdoor electric current shall be measured with a clamp meter from connection cord.

Caution : Start operation with the condition of the Indoor Unit air filter clean.

[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

AG*V09LAC

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

08-02

0.70

0.80

0.90

1.00

1.10

1.20

1.30

17.5 20 22.5 25 27.5 30 32.5

In/outdoor ambient temperature (°C)

Low-pressure of outdoor unit (MPa)

Relative Humidity 50%
Relative Humidity 60%
Relative Humidity 70%

0.70

0.80

0.90

1.00

1.10

1.20

1.30

17.5 20 22.5 25 27.5 30 32.5

In/outdoor ambient temperature (°C)

Relative Humidity 50%
Relative Humidity 60%
Relative Humidity 70%

AG*V12LAC

Low-pressure of outdoor unit (MPa)

AG*V09LAC

1.60

1.70

1.80

1.90

2.00

2.10

2.20

17.5 20 22.5 25 27.5 30 32.5

In/outdoor ambient temperature (°C)

Outdoor total electric current (A)

Relative Humidity 50%
Relative Humidity 60%
Relative Humidity 70%

2.60

2.80

3.00

3.20

3.40

3.60

3.80

17.5 20 22.5 25 27.5 30 32.5

In/outdoor ambient temperature (°C)

Outdoor total electric current (A)

Relative Humidity 50%
Relative Humidity 60%
Relative Humidity 70%

AG*V12LAC

Outdoor Unit Low Pressure Value and Outdoor Total Electric Current Curve (Cooling)

Model Name : AG*V14LAC

[Condition]

Ambient temperature : Indoor / Outdoor - Same temperature
Amount of refrigerant : Regulation amount
Piping length : 5m (Difference of elevation 1m)

Power voltage : 50Hz - 230V

Operating condition : TEST mode (Cooling), Hi-speed Fan, Upward blowoff position, Front blowoff,
1 fan operating, With deodorizing filter

Measurement method : Low side pressure shall be measured with a pressure gauge from service valve.
Total outdoor electric current shall be measured with a clamp meter from connection cord.

Caution : Start operation with the condition of the Indoor Unit air filter clean.

[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

AG*V14LAC

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

08-03

0.60

0.70

0.80

0.90

1.00

1.10

1.20

17.5 20 22.5 25 27.5 30 32.5

In/outdoor ambient temperature (°C)

Low-pressure of outdoor unit (MPa)

Relative Humidity 50%
Relative Humidity 60%
Relative Humidity 70%

AG*V14LAC

3.00

3.20

3.40

3.60

3.80

4.00

4.20

17.5 20 22.5 25 27.5 30 32.5

In/outdoor ambient temperature (°C)

Outdoor total electric current (A)

Relative Humidity 50%
Relative Humidity 60%
Relative Humidity 70%

Outdoor Unit High Pressure Value and Outdoor Total Electric Current Curve (Heating)

Model Name : AG*V09/ 12LAC

[Condition]

Ambient temperature : Indoor 15 - 23degC, Outdoor 2 - 12degC
Amount of refrigerant : Regulation amount

Piping length : 5m (Difference of elevation 1m)

Power voltage : 50Hz - 230V

Operating condition : TEST mode (Heating), Hi-speed Fan, Upward blowoff position, Front blowoff,
1 fan operating, With deodorizing filter

Measurement method : High side pressure shall be measured with a pressure gauge from service valve.
Total outdoor electric current shall be measured with a clamp meter from connection cord.

Caution : Start operation with the condition of the Indoor Unit air filter clean.

[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

AG*V09LAC

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

08-04

2.20

2.40

2.60

2.80

3.00

3.20

3.40

0 2 4 6 8 10 12 14

Outdoor ambient temperature (°C)

High-pressure of outdoor unit (MPa)

AG*V12LAC

AG*V09LAC

Outdoor ambient temperature (°C)

Outdoor total electric current (A)

AG*V12LAC

15°C
20°C
23°C

(Indoor ambient temp.)

3.80

4.00

4.20

4.40

4.60

4.80

5.00

0 2 4 6 8 10 12 14

Outdoor ambient temperature (°C)

Outdoor total electric current (A)

5.20

5.40

5.60

5.80

6.00

6.20

6.40

6.60

6.80

0 2 4 6 8 10 12 14

2.60

2.80

3.00

3.20

3.40

3.60

3.80

0 2 4 6 8 10 12 14

Outdoor ambient temperature (°C)

High-pressure of outdoor unit (MPa)

15°C
20°C
23°C

(Indoor ambient temp.)

15°C
20°C
23°C

(Indoor ambient temp.)

15°C
20°C
23°C

(Indoor ambient temp.)

Outdoor Unit High Pressure Value and Outdoor Total Electric Current Curve (Heating)

Model Name : AG*V14LAC

[Condition]

Ambient temperature : Indoor 15 - 23degC, Outdoor 2 - 12degC
Amount of refrigerant : Regulation amount

Piping length : 5m (Difference of elevation 1m)

Power voltage : 50Hz - 230V

Operating condition : TEST mode (Heating), Hi-speed Fan, Upward blowoff position, Front blowoff,
1 fan operating, With deodorizing filter

Measurement method : High side pressure shall be measured with a pressure gauge from service valve.
Total outdoor electric current shall be measured with a clamp meter from connection cord.

Caution : Start operation with the condition of the Indoor Unit air filter clean.

[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

AG*V14LAC

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

08-05

3.00

3.10

3.20

3.30

3.40

3.50

3.60

0 2 4 6 8 10 12 14

Outdoor ambient temperature (°C)

High-pressure of outdoor unit (MPa)

AG*V14LAC

Outdoor ambient temperature (°C)

Outdoor total electric current (A)

4.50

5.00

5.50

6.00

6.50

7.00

7.50

0 2 4 6 8 10 12 14

15°C
20°C
23°C

(Indoor ambient temp.)

15°C
20°C
23°C

(Indoor ambient temp.)

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 -20.00 48.13 0.45 -20.00 115.24 1.25

5.00 -15.00 36.07 0.58 -15.00 84.21 1.56

10.00 -10.00 27.29 0.74 -10.00 62.28 1.90

15.00 -5.00 20.84 0.93 -5.00 46.58 2.26

20.00 0.00 16.05 1.14 0.00 35.21 2.61

25.00 5.00 12.45 1.38 5.00 26.88 2.94

30.00 10.00 9.74 1.64 10.00 20.72 3.25

35.00 15.00 7.67 1.91 15.00 16.12 3.52

40.00 20.00 6.09 2.19 20.00 12.64 3.76

45.00 25.00 4.87 2.47 25.00 10.00 3.97

50.00 30.00 3.92 2.74 30.00 7.97 4.14

55.00 35.00 3.17 3.00 35.00 6.40 4.28

60.00 40.00 2.59 3.24 40.00 5.18 4.41

65.00 45.00 2.12 3.46 45.00 4.21 4.51

70.00 50.00 1.75 3.66 50.00 3.45 4.59

75.00 55.00 1.45 3.83 55.00 2.85 4.65

80.00 60.00 1.21 3.99 60.00 2.36 4.71

85.00 65.00 1.01 4.12 65.00 1.97 4.76

90.00 70.00 0.85 4.24 70.00 1.65 4.79

95.00 75.00 0.72 4.34 75.00 1.39 4.83

100.00 80.00 0.61 4.43 80.00 1.18 4.85

105.00 85.00 0.52 4.51 85.00 1.00 4.87

110.00 90.00 0.44 4.57 90.00 0.85 4.89

115.00 95.00 0.38 4.63 95.00 0.73 4.91

120.00

168.60

130.70

102.20

80.51

63.89

51.05

41.07

33.26

27.09

22.20

18.29

15.15

12.62

10.56

8.88

7.50

6.36

5.42

4.64

3.98

3.43

2.97

2.58

2.24

1.96

0.36

0.45

0.56

0.70

0.85

1.01

1.20

1.41

1.62

1.85

2.08

2.31

2.54

2.76

2.97

3.17

3.36

3.53

3.69

3.83

3.96

4.07

4.17

4.26

4.34 100.00 0.33 4.68

100.00

0.63

4.92

0.00

5.00

10.00

15.00

20.00

25.00

30.00

35.00

40.00

0.00 10.00 20.00 30.00 40.00 50.00 60.00

0.00

20.00

40.00

60.00

80.00

100.00

120.00

140.00

160.00

180.00

0.00 20.00 40.00 60.00 80.00

0.00

20.00

40.00

60.00

80.00

100.00

120.00

140.00

160.00

180.00

0.00 20.00 40.00 60.00 80.00 100.00 120.00

0.00

10.00

20.00

30.00

40.00

50.00

-20.00 0.00 20.00 40.00 60.00 80.00

0.00

20.00

40.00

60.00

80.00

100.00

120.00

-20.00 0.00 20.00 40.00 60.00

Thermistor resistance values

Room temperature thermistor

Temp ( C)

Resistance(k )

Voltage(V)

Indoor heat exchanger thermistor

Temp ( C)

Resistance(k )

Voltage(V)

Characteristics of room temperature thermistor

Resistance (k )

Temperature ( C)

Characteristics of heat exchanger thermistor (Indoor)

Resistance (k )

Temperature ( C)

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

Characteristics of discharge thermistor

Resistance (k )

Temperature ( C)

Resistance (k )

Temperature ( C)

Characteristics of heat exchanger thermistor (Outdoor)

Resistance (k )

Temperature ( C)

Characteristics of outdoor temperature thermistor

08-06

9 . REPLACEMENT PARTS

R410A

FLOOR type

INVERTER

MODELS : AG*V09LAC

AG*V09LAC AG*V12LAC AG*V14LAC -

1 INTAKE GRILLE ASSY (FUJITSU BRAND)

2 ROPE ASSY
3 PANEL (FRONT) L
4 PANEL (FRONT) R

6 ELECTRIC FILTER
7 ION DEODRANT FILTER

Parts No.

Description

Ref
No.

Q'ty

9316418011

9316458017
9316187016
9316186019

9312153015
9311925033

-

-

-

-

-

-

-

-

-

-

-

-

-

BRACKET PANEL9 9316272019 - -

8 PANEL (FRONT) 9316185012 - -

09-01

AG*V12LAC
AG*V14LAC

1

2 5

2

3

4

8

6

7

9

9316418011

9316458017
9316187016
9316186019

9312153015
9311925033

9316272019

9316185012

9316418011
1 INTAKE GRILLE ASSY (GENERAL BRAND) 9316418028 - -9316418028 9316418028
1 INTAKE GRILLE ASSY (FUJI BRAND) 9316418035 - -9316418035 9316418035
1 INTAKE GRILLE ASSY (HIYASU BRAND) 9316418042 - -9316418042 9316418042

9316458017

9316187016

9316186019

9312153015

5 AIR FILTER 9316189010 - -9316189010 9316189010

9311925033

9316272019

9316185012

1. DISASSEMBLY ILLUSTRATION & PARTS LIST

MODELS : AG*V09LAC

09-02

AG*V12LAC
AG*V14LAC

10

11

12

13

14

16

17

18

20

27

25

24

23

22

14

30

12

10

29

31

32

33

26

28

21

19

15

34

34

35

SHIELD PANEL 9316441019 9316441019 9316441019 - -

AG*V09LAC AG*V12LAC AG*V14LAC -

MOTOR CUSHION NR

10

MOTOR DC BRUSHILESS MFD-34ROM

11

MOTOR CUSHION N

12

CROSS FLOW FAN ASSY

13

BEARING C ASSY

14

TERMINAL

Parts No.

Description

Ref
No.

Q'ty

9313168018
9602109012
9312979011
9312004034
9306628017
9900385026

-

-

-

-

-

-

-

-

-

-

-

-

-

CORD CLAMP

16

COVER (TERMINAL)

18

BRACKET (PIPE)

19

BASE

20

PIPE THERMISTOR

21

DISPLAY CASE

9302271002
9316307018
9316270015
9316193017
9900425012
9316194014

-

-

-

-

-

-

-

-

-

-

-

-

22

DISPLAY PCB 9707571011 - -

23

DISPLAY COVER 9316191013 - -

24

THERMISTOR HOLDER 9316192010 - -

25

SLIDE SWITCH COVER 9316267015 - -

15

BRACKET (TERMINAL) 9316269019 - -

26

ROOM TEMP THERMISTOR 9700801108 - -

17

32

CONTROL BOX 9316200012

31

CONTROLLER PCB 9707505016

30

CONTROL COVER 9316201019

29

CROSS FLOW FAN B ASSY 9316309012

28

MOTOR DC BRUSHILESS MFD-14SXM 9602481019

27

MOTOR HOLDER 9316195011

9313168018
9602109012
9312979011
9312004034
9306628017
9900385026

9302271002
9316307018
9316270015
9316193017
9900425012
9316194014
9707571011
9316191013
9316192010
9316267015

9316269019

9700801108

9316200012

9707505023

9316201019

9316309012

9602481019

9316195011

9313168018

9602109012

9312979011

9312004034

9306628017

9900385026

9302271002

9316307018

9316270015

9316193017

9900425012

9316194014

9707571011

9316191013

9316192010

9316267015

9316269019

9700801108

9316200012

9707505030

9316201019

9316309012

9602481019

9316195011 - -

- -

- -

- -

- -

- -

33

CONTROL INNER COVER 9316487017 9316487017 9316487017 - -

35

MODELS : AG*V09LAC

AG*V09LAC AG*V12LAC AG*V14LAC -

EVAPORATOR HOLDER
EVAPORATOR TOTAL ASSY

37

EVAPORATOR ASSY

38

JOINT PIPE OUTLET

39

JOINT PIPE INLET

40

WATER SEAL

Parts No.

Description

Ref
No.

Q'ty

9316199019
9316091016
9316092013
9316440012
9316439016
9316271012

-

-

-

-

-

-

-

-

-

-

-

-

-

09-03

AG*V12LAC
AG*V14LAC

36

38

39

40

41

9316199019
9316091016
9316092013
9316440012
9316439016
9316271012

9316199019

9316091023

9316092013

9316440029

9316439016

9316271012

37

42

36

41
42

U PIPE AA ASSY 9316095014 - -9316095014 9316095014

MODELS : AG*V09LAC

AG*V09LAC AG*V12LAC AG*V14LAC -

TOP COVER

43

SPACER C

44

SPACER D

45

R AND L LOUVER U

46

JOINT U

47

HOLDER (GUARD)

Parts No.

Description

Ref
No.

Q'ty

9316207011
9315281012
9315282019
9316208018
9316209015
9316210011

-

-

-

-

-

-

-

-

-

-

-

-

-

CASING

49

9316204010 - -

48

GUARD (FAN) 9316211018 - -

09-04

AG*V12LAC
AG*V14LAC

43

45

44

44

46

48

49

50

56

57

58

55

54

53

52

51

47

BUSING B

50

9312156016 - -

BUSING A

51

9303529010 - -

MOTOR STEP (UP/DOWN)

54

9900384043 - -

GEAR A

53

9309994003 - -

GEAR CASE

52

9316213012 - -

REF (CASING)

57
58

9316378018 - -

LOUVER Z

56

9316206014 - -

LOUVER U

55

9316205017 - -

9316207011

9315281012

9315282019

9316208018

9316209015

9316210011

9316204010

9316211018

9312156016

9303529010

9900384043

9309994003

9316213012

9316378018

9316206014

9316205017

9316207011
9315281012
9315282019
9316208018
9316209015
9316210011

9316204010

9316211018

9312156016
9303529010

9900384043

9309994003

9316213012

9316378018

9316206014

9316205017

MODELS : AG*V09LAC

AG*V09LAC AG*V12LAC AG*V14LAC -

MOTOR STEP (DAMPER)

59

LIMIT SWITCH COVER

60

SWITCH MICRO

61

MOTOR STEP (DAMPER LOCK LEFT)

62

KEY TOP

63

CAP (DRAIN)

Parts No.

Description

Ref
No.

Q'ty

9900384050
9316217010
9900424015
9900384067
9316218017
9316177017

-

-

-

-

-

-

-

-

-

-

-

-

-

HOSE (DRAIN) ASSY

65

9314147029 - -

64

DRAIN PAN U 9316214019 - -

09-05

AG*V12LAC
AG*V14LAC

69

72

74

59

HOLDER (DRAIN HOSE)

66

9316384019 - -

MOTOR STEP (DAMPER LOCK RIGHT)

67

9900384074 - -

DAMPER

70

9316216013 - -

BUSING A

69

9303529010 - -

BUSING B

68

9312156016 - -

SPACER D

73

9315282019 - -

JOINT Z

72

9316335011 - -

R AND L LOUVER Z

71

9316334014 - -

62

60

61

63

64

65

66

67

68

70

71

73

75

77

76

COVER (LOWER)

76
77

9316374010 - -

STOPPER

75

9316219014 - -

DRAIN PAN Z

74

9316215016 - -

9900384050
9316217010
9900424015
9900384067
9316218017
9316177017

9314147029

9316214019

9316384019
9900384074

9316216013

9303529010

9312156016

9315282019

9316335011

9316334014

9316374010

9316219014

9316215016

9900384050

9316217010

9900424015

9900384067

9316218017

9316177017

9314147029

9316214019

9316384019

9900384074

9316216013

9303529010

9312156016

9315282019

9316335011

9316334014

9316374010

9316219014

9316215016

MODELS : AO*V09LAC

09-06

AO*V12LAC

1

AO*V09LAC AO*V12LAC -

1 PANEL (TOP) ASSY

PROTECTIVE NET
3 THERMISTOR (OUTDOOR TEMP)
4 TERMINAL COVER
5 COVER (SWITCH)
6 CABINET RIGHT ASSY

Parts No.

Description

Ref
No.

Q'ty

9313988029
9313941024
9900210038
9315234018
9310979013
9313994051

-

-

-

-

-

-

-

-

-

-

-

-

-

2

7 REM PLATE 9313813017 - -

2

3

4

5

6

8

11

9

7

10

12

13

14

8 CABINET LEFT ASSY 9313991012 - -

14 PANEL (FRONT) 9313806026 - -

13 RING (FAN) 9313807016 - -

12 NUT WITH WASHER 9304902003 - -

11 PROPELLER FAN 9313808013 - -

10 MOTOR BRACKET 9313812010 - -

9 MOTOR DC BRUSHLESS MFE-12ROM 9602111015 - -

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

9313988029
9313941024
9900210038
9315234018
9310979013
9313994051
9313813017
9313991012

9313806026

9313807016

9304902003

9313808013

9313812010

9602111015

MODELS : AO*V09LAC

09-07

AO*V12LAC

17

16

18

15

19

20

21

23

22

24

25

27

AO*V09LAC AO*V12LAC -

15 CONDENSER TOTAL ASSY

SEPARATER B

17 REACTOR ASSY
18 COMPRESSOR ASY
19 2-WAY VALVE ASSY
20 3-WAY VALVE ASSY

Parts No.

Description

Ref
No.

Q'ty

9314107047
9313815011
9900343019
9315206015
9314554018
9314022012

-

-

-

-

-

-

-

-

-

-

-

-

-

16

21 BRACKET (VALVE) 9310229026 - -

-

-

-

-

-

-

-

-

27 BASE ASSY 9313987015 - --

26 THERMISTOR ASSY (DISCHARGE, PIPE) 9900148027 - --

25 4-WAY VALVE ASSY 9314093012 - --

24 SOLENOID 9970033018 - --

23 COIL (EXPANSION VALVE) 9900057039 - --

22 PULSE MOTOR VALVE ASSY 9314557019 - --

26

9314107047
9313815011
9900343019
9315206015
9314554018
9314022012
9310229026

9313987015

9900148027

9314093012

9970033018

9900057039

9314557019

MODELS : AO*V09LAC

09-08

AO*V12LAC

28

AO*V09LAC AO*V12LAC -

28 COVER (CASE)

INVERTER PCB ASSY

30 HOLDER (PCB)
31 INVERTER CASE ASSY
32 TERMINAL
33 CORD CLAMP

Parts No.

Description

Ref
No.

Q'ty

9309913011
9707039221
9313074029
9315690012
9703874031
9307271014

-

-

-

-

-

-

-

-

-

-

-

-

-

29

34 TERMINAL BRACKET 9315233028 - ­35 COVER (INVERTER CASE) 9314507014 - -

39 FUSE 250V- 5A 0600376086 - -

38 FUSE HOLDER 0501456016 - -

37 FUSE 250V-20A 0600382018 - -

36 FUSE HOLDER 0501454012 - -

-

29

30

31

32

33

34

35

36

38

37

39

9309913011
9707039238
9313074029
9315690012
9703874031
9307271014
9315233028
9314507014

0600376086

0501456016

0600382018

0501454012

-

-

-

-

-

-

-

-

-

-

-

-

MODELS : AO*V14LAC

09-09

1

AO*V14LAC - -

1 PANEL (TOP) ASSY

THERMISTOR (OUTDOOR TEMP)

3 PROTECTIVE NET
4 CABINET RIGHT ASSY
5 COVER (SWITCH) ASSY
6 BRACKET (MOTOR) ASSY

Parts No.

Description

Ref
No.

Q'ty

9309230057
9900210045
9315319012
9309236011
9309237025
9313432010

-

-

-

-

-

-

-

-

-

-

-

-

-

2

7 MOTOR DC BRUSHLESS MFE-63NOM 9601725015 - -

3

2

4

5

6

8

11

9

7

10

12

8 PROPELLER FAN 9309909014 - -

12 GRIP 9308880017 - -

11 CABINET ASSY 9312799176 - -

10 RING (FAN) 9308885012 - -

9 NUT WITH WASHER 9304902003 - -

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

MODELS : AO*V14LAC

09-10

16

14

21

13

15

26

17

18

19

20

AO*V14LAC - -

13 CONDENSER ASSY

JOINT E

15 ENTRANCE PIPE ASSY

16 JOINT PIPE ASSY A

17 JOINT PIPE ASSY B

18 CORD CLAMP

Parts No.

Description

Ref
No.

Q'ty

9311382065

9309495005

9310812013

9309488007

9311287018

9307271014

-

-

-

-

-

-

-

-

-

-

-

-

-

14

19 2-WAY VALVE ASSY 9313064013 - -

-

-

-

-

-

-

-

-

25 PULSE MOTOR VALVE ALL ASSY 9311641018 - --

24 COMPRESSOR ASSY 9313763022 - --

23

SEPARATER ASSY

9312971015 - --

22 REACTOR ASSY 9900354015 - --

21 BRACKET (VALVE) 9308870025 - --

20 3-WAY VALVE ASSY 9315159014 - --

25

22

23

24

27

30

28

29

-

-

-

-

-

-

-

-

-

-

-

-

-

26 COIL (EXPANSION VALVE) 9900057039 - ---

30 BASE ASSY PAINTED 9308869081 - ---

29 THERMISTOR ASSY (DISCHARGE, PIPE) 9900148027 - ---

28 SOLENOID 9970033018 - ---

27 VALVE (4-WAY) ASSY 9316475014 - ---

MODELS : AO*V14LAC

09-11

31

AO*V14LAC - -

31 COVER (CASE)

INVERTER PCB ASSY

33 HOLDER (PCB)
34 INVERTER CASE ASSY
35 TERMINAL
36 TERMINAL BRACKET

Parts No.

Description

Ref
No.

Q'ty

9309913011
9707039245
9313074029
9315690012
9703874031
9315037039

-

-

-

-

-

-

-

-

-

-

-

-

-

32

37 FUSE HOLDER 0501454012 - ­38 FUSE 250V-20A 0600382018 - -

40 FUSE 250V- 5A 0600376086 - -

39 FUSE HOLDER 0501456016 - -

-

32

33

34

35

36

37

39

38

40

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

INDOOR UNIT

OUTDOOR UNIT

STANDARD ACCESSORIES

Name and Shape

Bracket panel

Remote control unit
AR-RAC1E

Battery (penlight)

Cloth tape

Remote control
unit holder

Tpping screw (big)

Tpping screw (small)

Q'ty

1

1

2

1

1

9

2

Use

For indoor unit installation 9316272019

9316397019

0600185527

9310519004

9305642045

0700076046

0700019036

Use for air conditioner
operation

For remote control unit

For indoor unit installation

Use as remote control unit
holder

For wall hook bracket and body
installation

For remote control unit
holder installation

Part No.

( 3 x 12)

( 4 x 25)

9303029022

Use

Part No.

For outdoor unit drain piping
work

Q'ty

1

Name and Shape

Drain pipe assy

09-12

Electric filter
UTR-FC03-2

Ion deodrant filter
UTR-FC03-3

1

1 9312833009

9312832002

AO*V09/12LAC AO*V14LAC

9303029015

With 2 sheets

With 2 sheets

1. INTAKE GRILLE ASSY removal

Open the INTAKE GRILLE ASSY.
Remove the rope and hook.
Lay down the INTAKE GRILLE ASSY,
until the axle at the bottom of the INTAKE GRILLE ASSY is removed.

2. PANEL (FRONT) L/ R removal

Remove 4 screws.
The middle finger is hung on the lower part as shown in the figure,
and it pulls to the front, pushing [ ] mark,
and bottom hooks (two position) is removed from Base.
The side panel is pulled to the front,
raising the upper surface, and a side panel is removed.

2. DISASSEMBLY PROCESS

09-13

Intake Grille Assy

Rope

Hook

Mounting shaft

Screw

[ ] mark

Base

Panel (Front) L

Panel (Front) R

3. CONTROLLER PCB removal

Remove the CONTROL COVER.
Remove the connectors and cords.
Remove the CONTROLLER PCB.

4. PANEL (FRONT) removal

Remove 4 screws.
Remove the PANEL (FRONT) by sliding upward.

09-14

Hook

Screw

Control Cover

Controller PCB

Panel (Front)

Hook

5. CASING ASSY removal

Remove Remove 4 screws.
Remove the CASING ASSY by sliding front side.

6. FAN MOTOR removal

Remove Remove 1 screw.
Remove the MOTOR HOLDER by sliding upward.
Remove the FAN MOTOR.

09-15

Screw

Screw

Casing assy

Cross Flow Fan assy

Motor Holder

Fan Motor

7. HOSE (DRAIN) ASSY removal

Remove Remove 1 screw.
Remove the HOLDER (DRAIN HOSE) and HOSE (DRAIN) ASSY.

8. DRAIN PAN ASSY removal

Remove Remove 2 screws.
Remove the DRAIN PAN ASSY by sliding front side.

09-16

Screw

Screw

Drain Pan assy

9. FAN MOTOR removal

Remove Remove 1 screw.
Remove the MOTOR HOLDER by sliding downward.
Remove the FAN MOTOR.

09-17

Screw

Motor Holder

Fan Motor

10 . INSTALLATION MANUAL

R410A

FLOOR type

INVERTER

For authorized service personnel only.

(1) For the room air conditioner to operate satisfactory, install it as outlined in this installation manual.
(2) Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts. This

installation manual describes the correct connections using the standard accessories and the parts specified in

this installation manual.
(3) Have installation work done by authorized service personnel only.
(4) Also do not use an extension cord.
(5) Do not turn on the power until all installation work is complete.

WARNING

● Be careful not to scratch the air conditioner when handling it.

● After installation, explain correct operation to the customer, using the operating manual.

● Let the customer keep this installation manual because it is used when the air conditioner is serviced or moved.

STANDARD ACCESSORIES

The following installation accessories are supplied.
Use them as required.

Name and Shape Q’ty Name and Shape Q’ty

Connection pipe assembly

Connection cord

Wall pipe

Decorative tape

Vinyl tape

Wall cap

Saddle

Drain hose

Tapping screws

Sealant

Name

Wall hook bracket

Remote
control
unit

Battery

Tapping screw (big)

Cloth tape

1

1

2

One set of following parts are necessary in installation of this
product.

ELECTRICAL REQUIREMENT

Always make the air conditioner power supply a special branch circuit
and provide a special switch and receptacle. Do not extend the power
cord.

• Electric wire size.

• Install the disconnect device with a contact gap of at least 3 mm

nearby the units. (Both indoor unit and outdoor unit)

• Always make the air conditioner power supply a special branch

circuit and provide a special breaker.

• Always use H07RN-F or equivalent as the power supply cord and

the connection cord.

1

9

2

Tapping screw (small)

Air cleaning filter

2

Remote control
unit holder

1

9,000 ~14,000 BTU class

1.5

MODEL

Connection cord (mm

2

)

Function
number

Setting
value

Decide the mounting position with the customer as follows:

(1) Install the indoor unit level on a strong wall which is not subject to

vibration.

(2) The inlet and outlet ports should not be obstructed : the air should

be able to blow all over the room.
(3) Install the unit near an electric outlet or special branch circuit.
(4) Do not install the unit where it will be exposed to direct sunlight.
(5) Install the unit where connection to the outdoor unit is easy.
(6) Install the unit where the drain pipe can be easily installed.
(7) Take servicing, etc. into consideration and leave the spaces shown

in (Fig. 1). Also install the unit where the filter can be removed.
(8) Install the place where is no gap around the unit.

WARNING

Install at a place that can withstand the weight of the
indoor and install positively so that the units will not
topple or fall.

CAUTION

(1) Do not install where there is the danger of com-

bustible gas leakage.
(2) Do not install near heat sources.
(3) If children under 10 years old may approach the

unit, take preventive measures so that they can-

not reach the unit.

SELECTING THE MOUNTING
POSITION

[Indoor unit piping direction]

The piping can be connected in the six directions indicated by 1,
2, 3, 4, 5and 6 in (Fig. 2). When the piping is connected in

direction 2 or 5, cut along the piping groove in the side of the
base with a hacksaw.
When connecting the piping in direction 3, 6cut a notch in the thin
wall at the front bottom of the base.

INSTALLATION DIAGRAM OF
INDOOR UNIT

Fig. 1

[INDOOR UNIT]

Fig. 2

1 Right

rear
outlet

2 Right

outlet

3 Right

bottom
outlet

4 Left rear

outlet

5 Left

outlet

(Rear)

SIDE PANEL L, R REMOVAL AND INSTALLATION

Fig. 4

THE INTAKE GRILLE REMOVAL

(1) Open the intake grille.
(2) Remove the rope.
(3) Lay down the intake grille, until the axle at the bottom of the

intake grille is removed.

THE INTAKE GRILLE INSTALLATION

(1) The fixing axle of the intake grille is installed on the Panel.
(2) Lift the intake grille upward.

THE SIDE PANEL L, R REMOVAL

(1) Remove intake grille (Reference the intake grille removal.)
(2) Remove four screws.
(3) The middle finger is hung on the lower part as shown in the

figure, and it pulls to the front, pushing [컅] mark , and bottom
hooks (two position) is removed from Base.

(4) The side panel is pulled to the front, raising the upper surface,

and a side panel is removed.

THE SIDE PANEL L, R INSTALLATION

(1) Firstly, fit the top part of the side panel, and insert top and bot-

tom hooks.
(2) Four screws is attached.
(3) The intake grille is attached.

Installation instruction on the back.

Explain the following to the customer in accordance with the operat­ing manual:
(1) Starting and stopping method, operation switching, temperature

adjustment, timer, air flow switching, and other remote control

unit operations.
(2) Air filter removal and cleaning, and how to use the air louvers.
(3) Give the operating and installation manuals to the customer.

CUSTOMER GUIDANCE

6 Left

bottom
outlet

Remote

control unit

Connection Cord

Conform to Type245 IEC57

OUTDOOR UNIT

Tapping

screw

(small)

Remote

control unit

holder

10 cm or over

8 cm or over

(Wall cap)

8 cm or over

5 cm or
over

Mounting shaft

Front panel

Intake grille

Screw

BASE

SIDE

BASE

SIDE PANEL R

Intake grille

ROPE

Front panel

ROPE

SIDE PANEL L

SIDE PANEL R

[컅] Mark

POWER

CAUTION

(1) The power source capacity must be the sum of the air conditioner current and the current of other electrical appliances. When the

current contracted capacity is insufficient, change the contracted capacity.

(2) When the voltage is low and the air conditioner is difficult to start, contact the power company the voltage raised.

WARNING

(1) The rated voltage of this product is 230 V AC 50 Hz.
(2) Before turning on the power, check if the voltage is within the

220 V -10 % to 240 V +10 % range.

(3) Always use a special branch circuit and install a special

receptacle to supply power to the room air conditioner.

(4) Use a circuit breaker and receptacle matched to the capacity of

the air conditioner.

(5) Do not extend the connection cord.
(6) Perform wiring work in accordance with standards so that the

air conditioner can be operated safely and positively.

(7) Install a leakage circuit breaker in accordance with the related

laws and regulations and electric company standards.

CAUTION

Install the SIDE PANEL L, R
and INTAKE GRILLE securely.
If installation is imperfect, the
SIDE PANEL L, R or INTAKE
GRILLE may fall off and cause
injury.

EMBEDDING THE INDOOR UNIT IN A WALL

● When installing a grating, use a grating with narrow upper and lower

horizontal bars so that the airflow from the upper and lower air outlets
does not contact the bars. If the horizontal bars will block the lower
air outlet, use a stand, etc., to adjust the height of the indoor unit. If
the upper or lower air outlet is blocked, the air conditioner will not be
able to cool or warm the room well.

● Do not block the receiver with the grating. Otherwise, the grating will

interfere with the remote controller signal and significantly reduce
the distance and area (angle) from which the signals can be received.

● Use a grating with vertical bars, etc., that has at least 75% open area.

If the grating has horizontal bars or if the open area is less than 75%,
performance could be reduced.

● When the indoor unit is embedded in a wall (built-in), the time it takes

for the room temperature to reach the set temperature will increase.

Fig. 3

Upper air outlet

8 cm or more

Lower air outlet

8 cm or more

Grating

Indoor
unit

10 cm or
more

2 ~ 3 cm

When embedding the indoor unit in a wall, restrict the movement of the horizontal vane for the upper air outlet so that it only operates horizontally.
If this setting is not performed, heat will build up in the wall and the room will not be cooled or warmed properly.

Please explain the vane setting of direction only horizontally to the customer.

HOW TO SETTING VANE
Perform the "FUNCTION SETTING" according to the installation condition using the remote controller.

Entering the Function Setting Mode

1 While pressing the FAN button and SET TEMP simultaneously, press the RESET button to enter the function setting mode.
2 Press the TIMER MODE button two times and check that the indoor unit can receive signal.
3 Selecting the function number and setting value.

(1) Press the SET TEMP. button to select the function number.

(Press the MODE button to switch between the left and right digits.)

(2) Press the FAN button to poceed to setting the value.

(Press the FAN button again to return to the function number selection.)

(3) Press the SET TEMP. button to serect the setting value.

(Press the MODE button to switch between the left and right digits.)
(4) Press the TIMER MODE button, and START/STOP button, in the order listed to confirm the settings.
(5) Press the RESET button to cancel the function setting mode.
(6) After completing the FUNCTION SETTING, be sure to turn off the power and turn it on again.

FUNCTION

SETTING

23

SETTING

VALUE

2

15 cm or below
from the floor

SPLIT TYPE ROOM AIR CONDITIONER

INSTALLATION MANUAL

(PART No. 9316421011-04)

The basic installation work procedures are the same as conventional refrigerant (R22) models.

However, pay careful attention to the following points:

(1) Since the working pressure is 1.6 times higher than that of conventional refrigerant (R22) models,

some of the piping and installation and service tools are special.(See the table below.)
Especially, when replacing a conventional refrigerant (R22) model with a new refrigerant R410A
model, always replace the conventional piping and flare nuts with the R410A piping and flare nuts.

(2) Models that use refrigerant R410A have a different charging port thread diameter to prevent

erroneous charging with conventional refrigerant (R22) and for safety. Therefore, check
beforehand.[The charging port thread diameter for R410A is 1/2 threads per inch.]

(3) Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant

(R22) models. Also, when storing the piping ,securely seal the opening by pinching ,taping, etc.

(4) When charging the refrigerant, take into account the slight change in the composition of the

gas and liquid phases, and always charge from the liquid phase side whose composition is
stable.

This air conditioner uses new refrigerant HFC (R410A).

Special tools for R410A

Tool name

Gauge manifold

Charge hose

Vacuum pump

Gas leakage detector

Contents of change

Pressure is high and cannot be measured with a conventional gauge. To prevent erroneous
mixing of other refrigerants, the diameter of each port has been changed.
It is recommended the gauge with seals-0.1 to 5.3 MPa (-1 to 53 bar) for high pressure.

-0.1 to 3.8 MPa (-1 to 38 bar) for low pressure.
To increase pressure resistance, the hose material and base size were changed.
A conventional vacuum pump can be used by installing a vacuum pump adapter.
Special gas leakage detector for HFC refrigerant R410A.

Copper pipes

It is necessary to use seamless copper pipes and it is desirable
that the amount of residual oil is less than 40 mg/10m. Do not
use copper pipes having a collapsed, deformed or discolored
portion (especially on the interior surface). Otherwise, the ex­pansion value or capillary tube may become blocked with
contaminants.
As an air conditioner using R410A incurs pressure higher than
when using R22, it is necessary to choose adequate materials.
Thicknesses of copper pipes used with R410A are as shown in Table1.Never us copper pipes thinner than 0.8mm even
when it is available on the market.

Table 1 Thicknesses of Annealed Copper Pipes

Thickness (mm)

Nominal
diameter

1/4

3/8

1/2

Outer diameter

(mm)

6.35

9.52

12.7

R410A

0.80

0.80

0.80

[ref.] R22

0.80

0.80

0.80

CAUTION

When installing pipes shorter than 3m, sound of the outdoor unit will be transferred to the indoor unit, which will
cause large operating sound or some abnormal sound.

(1) Do not use the existing (for R22) piping and flare nuts.

• If the existing materials are used, the pressure inside the refrigerant cycle will rise and cause breakage, injury,
etc.(Use the special R410A materials.)

(2) When installing and relocating the air conditioner, do not mix gases other than the specified refrigerant(R410A)

to enter the refrigerant cycle.

• If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to an abnormally high value
and cause breakage, injury, etc.

WARNING

(1) Insulate between pipes.

● Overlap the connection pipe heat insulation and indoor unit pipe heat insulation.

● Wrapping the connection pipe with cloth tape over the range within which they fit into

the rear piping housing section.

● Fasten the pipe bracket with the screw (Fig.12).
(2) Fill the gap between the outside wall pipe hole and the pipe with sealer so that rain

water and wind cannot blow in.

(3) Fasten the drain hose to the outside wall, etc.

Fig. 13

Fig. 12

TEST RUNNING

● Perform test operation and check items 1 and 2 below.

● For the test operation method, refer to the operating manual.

● The outdoor unit, may not operate, depending on the room temperature. In this case, press the test run button on the remote control unit while

the air conditioner is running, (Point the transmitter section of the remote control unit toward the air conditioner and press the test run button
with the tip of a ball-point pen, etc.)

● To end test operation, press the remote control unit START/STOP button.
(When the air conditioner is run by pressing the test run button, the OPERATION indicator lamp and TIMER indicator lamp will simultaneously
flash slowly.)

1. INDOOR UNIT

(1) Is operation of each button on the remote control unit normal?
(2) Does each lamp light normally?
(3) Do the air flow-direction louver operate normally?
(4) Is the drain normal?

2. OUTDOOR UNIT

(1) Is there any abnormal noise and vibration during operation?
(2) Will noise, wind, or drain water from the unit disturb the neighbors?
(3) Is there any gas leakage?

Transmitter section

Test run button

Fig. 14

Pipe

Drain hose

Left piping

Connection cord

For connection from the left rear

Connection cord

Wall pipe

Connection
pipe

Drain hose

Stopping
downward

No upward
slope

Accumulated
drain water

Air

Fig. 1 Fig. 2 Fig. 3

Fig. 4

Fig. 5

End of drain hose
is immersed in
water.

50 mm or less
from ground

Drainage
channel

No upward
slope

Fig. 6

WIRED REMOTE CONTROL UNIT (OPTIONAL)

1. SIDE PANEL L AND CONTROL COVER REMOVAL

(1) Refer to “SIDE PANEL LR REMOVAL AND INSTALLATION” to remove the

side panel L.

(2) Remove the control cover.

2. CONNECTING TO CONTROL UNIT OF WIRE

(1) Connect the wire of wired remote control unit to the circuit board and

screw the earth wire.

(2) Install the control cover.
(3) Use wire clamper and screw to fasten wire.

3. SIDE PANEL L INSTALLATION

Install side panel L by the reverse produres as stated in “1 SIDE PANEL L
AND CONTROL COVER REMOVAL”.

Wire of wired remote control unit

Control cover

Cloth tape

Pipe bracket

screw

PUMP DOWN OPERATION (FORCED COOLING OPERATION)

To avoid discharging refrigerant into the atmosphere at the time of relocation or disposal, recover refrigerant by doing the cooling operation or
forced cooling operation according to the following procedure. (When the cooling operation cannot start in winter, and so on, start the forced
cooling operation.).

(1) Do the air purging of the charge hose by connecting the charging hose of gauge manifold to the charging port of 3 way valve and opening the low-

pressure valve slightly.
(2) Close the valve stem of 2 way valve completely.
(3) Start the cooling operation or following forced cooling operation.

When using the remote control unit

Press the TEST RUN button after starting the cooling operation by the remote control unit.

The operation indicator lamp and timer indicator lamp will begin to flash simultaneously during test run.

When using the MANUAL AUTO button of the indoor unit (The remote control unit is lost, and so on.)

Keep on pressing the MANUAL AUTO button of the indoor unit for more than 10 seconds.

(The forced cooling operation cannot start if the MANUAL AUTO button is not kept on pressing for more than 10 seconds.)
(4) Close the valve stem of 3 way valve when the reading on the compound pressure gage becomes 0.05~0 Mpa (0.5~0 kg/cm2).
(5) Stop the operation.

• Press the START/STOP button of the remote control unit to stop the operation.

• Press the MANUAL AUTO button when stopping the operation from indoor unit side.

(It is not necessary to press on keeping for more than 10 seconds.)

CAUTION

During the pump-down operation, make sure that the compressor is turned off before you remove the refrigerant

piping.

Do not remove the connection pipe while the compressor is in operation with 2 way or 3 way valve open. This

may cause abnormal pressure in the refrigeration cycle that leads to breakage and even injury.

Hook

Connect the

wire of wired

remote

control unit

Earth wire

Screw

Screw

Cord clump

FINISHING

P/N 9316421011-04

Wrap the each pipe

with cloth tape

Cable

Right side of

pipe bracket

(1) Remove the terminal cover.
(2) Remove the cord clamp.
(3) Bend the end of the connection cord as shown in the figure.

Fig. 11

(4) Connect the end of the connection cord fully into the terminal block.
(5) Fasten the connection cord with a cord clamp.

INDOOR UNIT WIRING

CAUTION

(1)

In order to align the drain hose and drain cap, be

sure to insert securely and vertically. Incline insertion
will cause water leakage.

(2) When inserting, be sure not to attach any material

besides water. If any other material is attached, it
will cause deterioration and water leakage.

(3) After removing drain hose, be sure not to forget

mounting drain cap.

(4)

Be sure to fix the drain hose with tape to the bottom

of piping.

NOTE ON DRAIN HOSE

The drain hose can be connected at either side of
the indoor unit.

The unit has been shipped with the drain hose
connected at left (

viewed from the back of the unit)

and the drain cap applied at right.

(1) Remove the both side panels.
(2) Remove the screw and remove the drain holder from drain pan.
(3) Pull out the drain cap.
(4) Connect the drain hose to the right, attach the screw and insert the

drain cap to the left.

Screw

DRAIN CAP

DRAIN
HOSE

Cord clamp

Terminal cover

40 mm

12 mm

5 mm

5 mm

20 mm

12 mm

Cord clamp

Connection cord

12

3

LN

12

3

4

Outdoor unit terminal blockIndoor unit terminal block

Connection cord

Earth screw Earth screw

Drain cock

Drain cap

No gap

Hexagon
wrench

DRAIN HOSE

Drain holder

Screw

DRAIN CAP

DRAIN HOSE

DRAIN CAP

Screw

Drain holder

Drain pan

Drain pan

Installation method of Drain cap

● Use a hexagonal wrench (4mm at op-

posite side) to insert the drain cap, till

the drain cap contacts the tip of drain

cook.

Fig. 7

(1) Before installing, be sure to disconnect all power supply.
(2) During installing or removing operation, be sure not to have

wire catched by parts or draw it hard. Or it may result troubles
to the air-conditioner.

(3) Insure the length of wire is not over the recommended

maximum length.

(4) Before setting up the wired remote control unit, please confirm

whether air-conditioner can receive the signal.

CAUTION

CONNECTION

(1) Install the outdoor unit wall cap (supplied with the optional installation set

or procured at the site) to the wall pipe.
(2) Connect the outdoor unit and indoor unit piping.
(3) After matching the center of the flare surface and tightening the nut hand

tight, tighten the nut to the specified tightening torque with a torque wrench.

(Table 2)

FLARING

(1) Cut the connection pipe to the necessary

length with a pipe cutter.
(2)

Hold the pipe downward so that cuttings will

not enter the pipe and remove the burrs.
(3) Insert the flare nut onto the pipe and flare

the pipe with a flaring tool.

Insert the flare nut (always use the flare nut
attached to the indoor and outdoor units
respectively) onto the pipe and perform the
flare processing with a flare tool.
Use the special R410A flare tool, or the conv­entional (for R22) flare tool.
When using the conventional flare tool, always
use an allowance adjustment gauge and secure
the A dimension shown in table 3 .

CONNECTING THE PIPING

Check if [L] is flared uniformly
and is not cracked or scratched.

Table 2 Flare nut size and tightening torque

Flare nut

6.35 mm dia.

9.52 mm dia.

12.7 mm dia.

Diameter (mm) × Torque (N-m)

17 × 14 ~ 18

22 × 34 ~ 42

26 × 49 ~ 61

CAUTION

(1) Fasten a flare nut with a torque wrench as instructed in this manual. If

fastened too tight, the flare nut may be broken after a long period of time
and cause a leakage of refrigerant.

(2) During installation, make sure that the refrigerant pipe is attached firmly

before you run the compressor. Do not operate the compressor under the
condition of refrigerant piping not attached properly with 2-way or 3-way
valve open. This may cause abnormal pressure in the refrigeration cycle
that leads to breakage and even injury.

Fig. 10

Tighten
with two wrenches.

Torque
wrench

Wrench (fixed)

Indoor unit pipe

Connection
pipe

To prevent gas leakage, coat the flare
surface with refrigerator oil.

Die

A

Pipe

Table 3 Pipe outside diameter

A (mm)

Pipe outside

diameter

ø 6.35 mm (1/4”)
ø 9.52 mm (3/8”)
ø 12.7 mm (1/2”)

Flare tool for

R410A, clutch type

0 to 0.5
0 to 0.5

0 to 0.5

Conventional (R22) flare tool

Clutch type

1.0 to 1.5

1.0 to 1.5

1.0 to 1.5

Wing nut type

1.5 to 2.0

1.5 to 2.0

1.5 to 2.0

(1) Match the terminal block numbers and connection cord colors with

those of the outdoor unit.
Erroneous wiring may cause burning of the electric parts.

(2) Connect the connection cords firmly to the terminal block. Imperfect instal-

lation may cause a fire.

(3) Always fasten the outside covering of the connection cord with the

cord clamp. (If the insulator is chafed, electric leakage may occur.)
(4) Securely earth the connection cord.
(5) Do not use the earth screw for an external connector. Only use for inter-

connection between two units.

CAUTION

CONNECTION STATEMENT OF WIRE

Wire

Wire tube

Wire tube

Wire

OK NG

TREATMENT OF WIRE

OK

NG NG

Wire tube

WARNING

Place the terminal cover surely after connecting the connection cable with the
terminal of the indoor unit.
If not placed the terminal cover, might cause smoke emission or fire.

INSTALLING THE WALL HOOK BRACKET

(1) Install the wall hook bracket so that it is correctly positioned

horizontally and vertically. If the wall hook bracket is tiled,
water will drip to the floor.

(2) Install the wall hook bracket so that it is strong enough to

withstand the weight of an adult.

● Fasten the wall hook bracket to the wall with 5 or more screws

through the holes near the outer edge of the bracket.

● Check that there is no rattle at the wall hook bracket.

Fig. 8

weight

Leveling
method

FORMING PIPE

(1) Pass the refrigerant pipe through the piping hole to indoor side.
(2) Arrange the pipes according to the direction of piping.

Rear piping

CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING

(1) Cut a 65 mm diameter hole in the wall at the position shown in (Fig.

5).

(2) Always align the center of the wall hole. If misaligned, water leakage

will occur.

(3) Cut the wall pipe to match the wall thickness, stick it into the wall cap,

fasten the cap with vinyl tape, and stick the pipe through the hole.
(The connection pipe is supplied in the installation set.) (Fig. 5)

(4) For left piping and right piping, cut the hole a little lower so that drain

water will flow freely. (Fig. 5)

Fig. 5

FOR RIGHT or LEFT REAR PIPING
(The following figure is a front view of the indoor unit installation
location.)

Fig. 6

Back wall

100

130

Floor

280

245

Back wall

Right piping

FOR RIGHT or LEFT Bottom PIPING
FOR LEFT PIPING FOR RIGHT PIPING

Back wall

690

Left piping

18 56

54

54

18 56

29

182 64

29

135

50

Fasten with
vinyl tape

(Wall cap)

(Wall pipe)

(Inside)

Wall (Outside)

WARNING

If the wall pipe is not used, the
cord interconnecting the indoor
and outdoor units may touch
metal and cause electric leakage.

Center of
wall holl

INDOOR UNIT INSTALATION

● Use the included and fasten the indoor unit at 4 locations (c) each at top and the middle of the unit.

● When the unit is set to the wall,use the wall hook brackt and hook the top of the indoor unit on the

indoor unit wall hook bracket.

Fig. 7

WARNING

[Installation of indoor unit]

• Fix the indoor unit with 4 screws surely.If improperly installed, might cause
to injury due to the toppling or falling.

• Install the indoor unit at the place that has adequate strength.
Install the indoor unit so that the installed unit can withstand the weight
of adult body weight.
If improperly installed, might cause accidental injury due to the toppling or
falling.

CAUTION

Install the wall hook bracket horizontally and perpendicularly.

Hook the indoor unit to the wall
hook bracket (2 positions)

30

124

423

703

124

438

48

59

550

59

65

65

(V09LA)
(V12LA)

ACCESSORY Q’ty

Drain pipe

1

Decide the mounting position with the customer as follows:
(1)

If possible, do not install the unit where it will be exposed to direct sunlight.
(If necessary, install a blind that does not interfere with the air flow.)

(2)

Do not install the unit where a strong wind blows or where it is very dusty.
(3) Do not install the unit where people pass.
(4) Take your neighbors into consideration so that they are not dis-

turbed by air blowing into their windows or by noise.
(5) Provide the space shown in Fig. 2 so that the air flow is not blocked.

Also for efficient operation, leave open three of the four directions

front, rear, and both sides.

WARNING

Install at a place that can withstand the weight of the
outdoor units and install positively so that the units will
not topple or fall.

SELECTING THE MOUNTING
POSITION

INSTALLATION DIAGRAM OF
OUTDOOR UNIT

Fig. 2

54 cm

32 cm

CAUTION

(1) Do not install where there is the danger of combustible gas

leakage.
(2) Do not install near heat sources.
(3) In places where the outdoor temperature drops to 0˚C or

lower, the drain water may freeze and may stop up the drain

or cause other outdoor unit trouble. Therefore take meas-

ures so that the drain water will not freeze and clog the drain.
(4) In the area with heavy snowfall, if the intake and outlet of

outdoor unit is blocked with snow, it might become difficult

to get warm and it is likely to cause of the breakdown. Please

construct a canopy and a pedestal or place the unit on a high

stand (local configured).
(5) If children under 10 years old may approach the unit, take

preventive measures so that they cannot reach the unit.

Drain hose

Outdoor
unit bottom

Connection Cord

Conform to Type245 IEC57

[OUTDOOR UNIT]

10 cm or over

60 cm or over

10 cm or over

20 cm or over

25 cm or
over

5 cm or over

INDOOR UNIT

SPLIT TYPE ROOM AIR CONDITIONER

INSTALLATION MANUAL

(PART No. 9316421028-01)

The basic installation work procedures are the same as conventional refrigerant (R22) models.

However, pay careful attention to the following points:

(1) Since the working pressure is 1.6 times higher than that of conventional refrigerant (R22) models,

some of the piping and installation and service tools are special.(See the table below.)
Especially, when replacing a conventional refrigerant (R22) model with a new refrigerant R410A
model, always replace the conventional piping and flare nuts with the R410A piping and flare nuts.

(2) Models that use refrigerant R410A have a different charging port thread diameter to prevent

erroneous charging with conventional refrigerant (R22) and for safety. Therefore, check
beforehand.[The charging port thread diameter for R410A is 1/2 threads per inch.]

(3) Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant

(R22) models. Also, when storing the piping ,securely seal the opening by pinching ,taping, etc.

(4)

When charging the refrigerant, take into account the slight change in the composition of the gas
and liquid phases, and always charge from the liquid phase side whose composition is stable.

This air conditioner uses new refrigerant HFC (R410A).

Special tools for R410A

Tool name

Gauge manifold

Charge hose

Vacuum pump

Gas leakage detector

Contents of change

Pressure is high and cannot be measured with a conventional gauge. To prevent erroneous
mixing of other refrigerants, the diameter of each port has been changed.
It is recommended the gauge with seals-0.1 to 5.3 MPa (-1 to 53 bar) for high pressure.

-0.1 to 3.8 MPa (-1 to 38 bar) for low pressure.
To increase pressure resistance, the hose material and base size were changed.
A conventional vacuum pump can be used by installing a vacuum pump adapter.
Special gas leakage detector for HFC refrigerant R410A.

Copper pipes

It is necessary to use seamless copper pipes and it is desirable
that the amount of residual oil is less than 40 mg/10m. Do not
use copper pipes having a collapsed, deformed or discolored
portion (especially on the interior surface). Otherwise, the ex­pansion value or capillary tube may become blocked with
contaminants.
As an air conditioner using R410A incurs pressure higher than
when using R22, it is necessary to choose adequate materials.
Thicknesses of copper pipes used with R410A are as shown in Table1.Never us copper pipes thinner than 0.8mm even
when it is available on the market.

Table 1 Thicknesses of Annealed Copper Pipes

Thickness (mm)

Nominal

diameter

1/4

3/8

Outer diameter

(mm)

6.35

9.52

R410A

0.80

0.80

[ref.] R22

0.80

0.80

CAUTION

When installing pipes shorter than 3m, sound of the outdoor unit will be transferred to the indoor unit, which will
cause large operating sound or some abnormal sound.

(1) Do not use the existing (for R22) piping and flare nuts.

• If the existing materials are used, the pressure inside the refrigerant cycle will rise and cause breakage, injury,
etc.(Use the special R410A materials.)

(2) When installing and relocating the air conditioner, do not mix gases other than the specified refrigerant(R410A)

to enter the refrigerant cycle.

• If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to an abnormally high value
and cause breakage, injury, etc.

WARNING

For authorized service personnel only.

(1) For the room air conditioner to operate satisfactory, install it as outlined in this installation manual.
(2) Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts. This

installation manual describes the correct connections using the standard accessories and the parts specified in this

installation manual.
(3) Have installation work done by authorized service personnel only.
(4) Do not use an extension cord.
(5) Do not turn on the power until all installation work is complete.

WARNING

● Be careful not to scratch the air conditioner when handling it.

● After installation, explain correct operation to the customer, using the operating manual.

● Let the customer keep this installation manual because it is used when the air conditioner is serviced or moved.

● The maximum length of the piping is 20 m. The maximum height difference of the piping is 15 m,

if the units are further apart than these, correct operation can not be guaranteed.

OUTDOOR UNIT INSTALLATION

● Set the unit on a strong stand, such as one made of concrete blocks

to minimize shock and vibration.

●

Do not set the unit directly on the ground because it will cause trouble.

Connector cover removal

● Remove the tapping screws.

Installing the connector cover

(1) After inserting the two front hooks, then insert the rear hook.
(2) Tighten the tapping screws.

Fig. 1

Tapping screw

Rear hooks

Front hooks

Connector cover

WARNING

(1) Install the unit where it will not be tilted by more

than 5°.

(2) When installing the outdoor unit where it may ex-

posed to strong wind, fasten it securely.

Installation instruction on the back.

POWER

WARNING

(1) The rated voltage of this product is 230 V AC 50 Hz.
(2) Before turning on the power, check if the voltage is within the

220 V -10 % to 240 V +10 % range.

(3) Always use a special branch circuit and install a special recepta-

cle to supply power to the room air conditioner.

(4) Use a circuit breaker and receptacle matched to the capacity of

the air conditioner.

(5) Do not extend the power supply cord and connection cord.
(6) Perform wiring work in accordance with standards so that the

air conditioner can be operated safely and positively.

(7) Install a leakage circuit breaker in accordance with the related

laws and regulations and electric company standards.

(1) Remove the outdoor unit connector cover.
(2) Bend the end of the cord as shown in the figure.
(3) Connect the end of the connection cord fully into the

terminal block.
(4) Fasten the sheath with a cord clamp.
(5) Install the connector cover.

Fig. 3

Connection cord

Cord clamp

Control box

Fig. 4

Connection cord

Connection cord wiring

Run the connection cord to the rear of the outdoor unit within
the A range of the arrows shown in the figure.
(The connector cover becomes difficult to install.)

Control box cover

12

3

LN

12

3

4

Outdoor unit terminal blockIndoor unit terminal block

Connection cord

Earth screw Earth screw

20mm

12mm

5mm

5mm

12mm

20mm

Cord clamp

Earth
screw

20mm

12mm

5mm

5mm

12mm

20mm

(1) Match the terminal block numbers and connection cord

colors with those of the indoor unit.
Erroneous wiring may cause burning of the electric
parts.

(2) Connect the connection cords firmly to the terminal block.

Imperfect installation may cause a fire.

(3) Always fasten the outside covering of the connection

cord with the cord clamp. (If the insulator is chafed,

electric leakage may occur.)
(4) Securely earth the power cord.
(5) Do not use the earth screw for an external connector.

Only use for interconnection between two units.

CAUTION

MODEL 9,000 ~12,000 BTU class

Power supply cord (mm2) 1.5

Connection cord (mm2) 1.5

Fuse capacity (A) 20

• Install the disconnect device with a contact gap of at least
3 mm nearby the units. (Both indoor unit and outdoor unit)

• Always make the air conditioner power supply a special branch
circuit and provide a special breaker.

• Always use H07RN-F or equivalent as the power supply cord
and the connection cord.

CONNECTION

(1) Install the outdoor unit wall cap (supplied with the optional installation set

or procured at the site) to the wall pipe.
(2) Connect the outdoor unit and indoor unit piping.
(3) After matching the center of the flare surface and tightening the nut hand

tight, tighten the nut to the specified tightening torque with a torque wrench.

(Table 2)

FLARING

(1) Cut the connection pipe to the necessary

length with a pipe cutter.
(2) Hold the pipe downward so that cuttings

will not enter the pipe and remove the

burrs.
(3) Insert the flare nut onto the pipe and flare

the pipe with a flaring tool.

Insert the flare nut (always use the flare nut
attached to the indoor and outdoor units
respectively) onto the pipe and perform the
flare processing with a flare tool.
Use the special R410A flare tool, or the conv­entional (for R22) flare tool.
When using the conventional flare tool, always
use an allowance adjustment gauge and secure
the A dimension shown in table 3 .

BENDING PIPES

(1) When bending the pipe, be careful not to crush it.
(2) To prevent breaking of the pipe, avoid sharp bends.

Bend the pipe with a radius of curvature of 70mm or over.
(3)

If the copper pipe is bend the pipe or pulled to often, it will become stiff.

Do not bend the pipes more than three times at one place.

CONNECTING THE PIPING

Check if [L] is flared uniformly
and is not cracked or scratched.

Fig. 5

Die

A

Pipe

Tighten with two wrenches.

Torque
wrench

Wrench (fixed)

Flare nut

Indoor unit pipe

Connection pipe

To prevent gas leakage, coat the flare
surface with refrigerator oil.

1. Check if the piping connections are secure.

2. Check that the stems of 2-way valve and 3-way valve are closed fully.

3. Connect the gauge manifold charge hose to the charging port of the 3­way valve (side with the projection for pushing in the valve core).

4. Open the low pressure side valve of the gauge manifold fully.

5. Operate the vacuum pump and start pump down.

6. Slowly loosen the flare nut of the 3-way valve and check if air enters,
then retighten the flare nut.
(When the flare nut is loosened the operating sound of the vacuum
pump changes and the reading of the compound pressure gauge goes
from minus to zero.)

AIR PURGE

Always use a vacuum pump to purge the air.
Refrigerant for purging the air is not charged in the
outdoor unit at the factory.

Close the high pressure side valve of the gauge manifold fully and do
not operate it during the following work.

7. Pump down the system for at least 15 minutes, then check if the com­pound pressure gauge reads -0.1 MPa (-76 cmHg, -1 bar).

8. At the end of pump down, close the low pressure side gauge of the
gauge manifold fully and stop the vacuum pump.

9. Slowly loosen the valve stem of the 3-way valve. When the compound
pressure gauge reading reaches 0.1-0.2 MPa, retighten the valve stem
and disconnect the charge hose from the 3-way valve charging port.
(If the stem of the 3-way valve is opened fully before the charge hose
is disconnected, it may be difficult to disconnect the charge hose.)

10. Fully open the valve stems of the 2-way valve and 3-way valve using a hexa­gon wrench. (After the valve stem begins to turn, turn it with a torque of less
than 2.9 N • m (30 kgf • cm) until it stops turning.)

11. Firmly tighten the 2-way valve and 3-way valve blank cap and the charg­ing port cap.

CAUTION

(1)

Refrigerant must not be discharged into atmosphere.

(2) After connecting the piping , check the joints for gas

leakage with gas leak detector.

Additional charge

Refrigerant suitable for a piping length of 15 m is charged in the outdoor
unit at the factory.
When the piping is longer than 15 m, additional charging is necessary.
For the additional amount, see the table below.

Pipe length

Additional refrigerant

Table 5

15 m

None

20 m

100 g

Fig. 6

Table 4

Tightening torque

Blank cap 19.6 to 24.5 N

• m (200 to 250 kgf • cm)

Charging port cap 12.3 to 15.7 N

• m (125 to 160 kgf • cm)

CAUTION

(1)

When adding refrigerant, add the refrigerant from the
charging port at the completion of work.

(2) The maximum length of the piping is 20 m. If the units

are further apart than this, correct operation can not
be guaranteed.

Between 15 m and 20 m, when using a connection pipe other than that
in the table, charge additional refrigerant with 20g/1 m as the criteria.

CAUTION

(1) The power source capacity must be the sum of the air conditioner current and the current of other electrical appliances. When the

current contracted capacity is insufficient, change the contracted capacity.

(2) When the voltage is low and the air conditioner is difficult to start, contact the power company the voltage raised.

Table 2 Flare nut size and tightening torque

Table 3 Pipe outside diameter

Flare nut

6.35 mm dia.

9.52 mm dia.

A (mm)

Pipe outside

diameter

ø 6.35 mm (1/4”)
ø 9.52 mm (3/8”)

Flare tool for

R410A, clutch type

0 to 0.5
0 to 0.5

Conventional (R22) flare tool

Clutch type

1.0 to 1.5

1.0 to 1.5

Wing nut type

1.5 to 2.0

1.5 to 2.0

CAUTION

(1) Fasten a flare nut with a torque wrench as instructed in this manual. If

fastened too tight, the flare nut may be broken after a long period of time
and cause a leakage of refrigerant.

(2) During installation, make sure that the refrigerant pipe is attached firmly

before you run the compressor. Do not operate the compressor under the
condition of refrigerant piping not attached properly with 2-way or 3-way
valve open. This may cause abnormal pressure in the refrigeration cycle
that leads to breakage and even injury.

Earth
screw

Connection Cord Power supply Cord

OUTDOOR UNIT WIRING

ELECTRICAL REQUIREMENT

• Electric wire size and fuse capacity:

12

3

NL

Power supply Cord

Diameter (mm) ✕ Torgue (N•m)

7 ✕ 14 ~ 18

22 ✕ 34 ~ 42

(V14LA)

ACCESSORY Q’ty

Drain pipe

1

Decide the mounting position with the customer as follows:
(1)

If possible, do not install the unit where it will be exposed to direct sun­light. (If necessary, install a blind that does not interfere with the air flow.)

(2)

Do not install the unit where a strong wind blows or where it is very dusty.
(3) Do not install the unit where people pass.
(4) Take your neighbors into consideration so that they are not dis-

turbed by air blowing into their windows or by noise.
(5) Provide the space shown in Fig. 2 so that the air flow is not blocked.

Also for efficient operation, leave open three of the four directions

front, rear, and both sides.

WARNING

Install at a place that can withstand the weight of the
outdoor units and install positively so that the units
will not topple or fall.

SELECTING THE MOUNTING
POSITION

INSTALLATION DIAGRAM OF
OUTDOOR UNIT

Fig. 2

54 cm

32 cm

CAUTION

(1) Do not install where there is the danger of combustible gas

leakage.
(2) Do not install near heat sources.
(3) In places where the outdoor temperature drops to 0˚C or lower,

the drain water may freeze and may stop up the drain or

cause other outdoor unit trouble. Therefore take measures

so that the drain water will not freeze and clog the drain.
(4) In the area with heavy snowfall, if the intake and outlet of

outdoor unit is blocked with snow, it might become diffi-

cult to get warm and it is likely to cause of the breakdown.

Please construct a canopy and a pedestal or place the unit

on a high stand (local configured).
(5) If children under 10 years old may approach the unit, take

preventive measures so that they cannot reach the unit.

Drain hose

Outdoor
unit bottom

Connection Cord

Conform to Type245 IEC57

[OUTDOOR UNIT]

10 cm or over

60 cm or over

10 cm or over

30 cm or over

30 cm or
over

5 cm or over

INDOOR UNIT

SPLIT TYPE ROOM AIR CONDITIONER

INSTALLATION MANUAL

(PART No. 9316421035-01)

The basic installation work procedures are the same as conventional refrigerant (R22) models.

However, pay careful attention to the following points:

(1) Since the working pressure is 1.6 times higher than that of conventional refrigerant (R22) models,

some of the piping and installation and service tools are special.(See the table below.)
Especially, when replacing a conventional refrigerant (R22) model with a new refrigerant R410A
model, always replace the conventional piping and flare nuts with the R410A piping and flare nuts.

(2) Models that use refrigerant R410A have a different charging port thread diameter to prevent

erroneous charging with conventional refrigerant (R22) and for safety. Therefore, check
beforehand.[The charging port thread diameter for R410A is 1/2 threads per inch.]

(3) Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant

(R22) models. Also, when storing the piping ,securely seal the opening by pinching ,taping, etc.

(4)

When charging the refrigerant, take into account the slight change in the composition of the gas
and liquid phases, and always charge from the liquid phase side whose composition is stable.

This air conditioner uses new refrigerant HFC (R410A).

Special tools for R410A

Tool name

Gauge manifold

Charge hose

Vacuum pump

Gas leakage detector

Contents of change

Pressure is high and cannot be measured with a conventional gauge. To prevent erroneous
mixing of other refrigerants, the diameter of each port has been changed.
It is recommended the gauge with seals-0.1 to 5.3 MPa (-1 to 53 bar) for high pressure.

-0.1 to 3.8 MPa (-1 to 38 bar) for low pressure.
To increase pressure resistance, the hose material and base size were changed.
A conventional vacuum pump can be used by installing a vacuum pump adapter.
Special gas leakage detector for HFC refrigerant R410A.

Copper pipes

It is necessary to use seamless copper pipes and it is desirable
that the amount of residual oil is less than 40 mg/10m. Do not
use copper pipes having a collapsed, deformed or discolored
portion (especially on the interior surface). Otherwise, the ex­pansion value or capillary tube may become blocked with con­taminants.
As an air conditioner using R410A incurs pressure higher than
when using R22, it is necessary to choose adequate materials.
Thicknesses of copper pipes used with R410A are as shown in Table1.Never us copper pipes thinner than 0.8mm even
when it is available on the market.

Table 1 Thicknesses of Annealed Copper Pipes

Thickness (mm)

Nominal

diameter

1/4

1/2

Outer diameter

(mm)

6.35

12.7

R410A

0.80

0.80

[ref.] R22

0.80

0.80

CAUTION

When installing pipes shorter than 3m, sound of the outdoor unit will be transferred to the indoor unit, which will
cause large operating sound or some abnormal sound.

(1) Do not use the existing (for R22) piping and flare nuts.

• If the existing materials are used, the pressure inside the refrigerant cycle will rise and cause breakage, injury,
etc.(Use the special R410A materials.)

(2) When installing and relocating the air conditioner, do not mix gases other than the specified refrigerant(R410A)

to enter the refrigerant cycle.

• If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to an abnormally high value
and cause breakage, injury, etc.

WARNING

For authorized service personnel only.

(1) For the room air conditioner to operate satisfactory, install it as outlined in this installation manual.
(2) Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts. This

installation manual describes the correct connections using the standard accessories and the parts specified in

this installation manual.
(3) Have installation work done by authorized service personnel only.
(4) Do not use an extension cord.
(5) Do not turn on the power until all installation work is complete.

WARNING

● Be careful not to scratch the air conditioner when handling it.

● After installation, explain correct operation to the customer, using the operating manual.

● Let the customer keep this installation manual because it is used when the air conditioner is serviced or moved.

● The maximum length of the piping is 20 m. The maximum height difference of the piping is 15 m,

if the units are further apart than these, correct operation can not be guaranteed.

OUTDOOR UNIT INSTALLATION

● Set the unit on a strong stand, such as one made of concrete blocks

to minimize shock and vibration.

●

Do not set the unit directly on the ground because it will cause trouble.

Connector cover removal

● Remove the tapping screws.

Installing the connector cover

(1) After inserting the two front hooks, then insert the rear hook.
(2) Tighten the tapping screws.

Fig. 1

Tapping screw

Rear hooks

Front hooks

Connector cover

WARNING

(1) Install the unit where it will not be tilted by more

than 5°.

(2) When installing the outdoor unit where it may ex-

posed to strong wind, fasten it securely.

Installation instruction on the back.

07A394_9316421035-01-1 1/30/07, 10:00 AM1

POWER

WARNING

(1) The rated voltage of this product is 230 V AC 50 Hz.
(2) Before turning on the power, check if the voltage is within the

220 V -10 % to 240 V +10 % range.

(3) Always use a special branch circuit and install a special recepta-

cle to supply power to the room air conditioner.

(4) Use a circuit breaker and receptacle matched to the capacity of

the air conditioner.

(5) Do not extend the power supply cord and connection cord.
(6) Perform wiring work in accordance with standards so that the

air conditioner can be operated safely and positively.

(7) Install a leakage circuit breaker in accordance with the related

laws and regulations and electric company standards.

(1) Remove the outdoor unit connector cover.
(2) Bend the end of the cord as shown in the figure.
(3) Connect the end of the connection cord fully into the

terminal block.
(4) Fasten the sheath with a cord clamp.
(5) Install the connector cover.

Fig. 3

Connection cord

Cord clamp

Control box

Fig. 4

Connection cord

Connection cord wiring

Run the connection cord to the rear of the outdoor unit within
the A range of the arrows shown in the figure.
(The connector cover becomes difficult to install.)

Control box cover

12

3

LN

12

3

4

Outdoor unit terminal blockIndoor unit terminal block

Connection cord

Earth screw Earth screw

20mm

12mm

5mm

5mm

12mm

20mm

Cord clamp

Earth
screw

20mm

12mm

5mm

5mm

12mm

20mm

(1) Match the terminal block numbers and connection

cord colors with those of the indoor unit.
Erroneous wiring may cause burning of the electric
parts.

(2) Connect the connection cords firmly to the terminal block.

Imperfect installation may cause a fire.

(3) Always fasten the outside covering of the connection

cord with the cord clamp. (If the insulator is chafed,

electric leakage may occur.)
(4) Securely earth the power cord.
(5) Do not use the earth screw for an external connector.

Only use for interconnection between two units.

CAUTION

MODEL 14,000 BTU class

Power supply cord (mm2) 1.5

Connection cord (mm2) 1.5

Fuse capacity (A) 20

• Install the disconnect device with a contact gap of at least
3 mm nearby the units. (Both indoor unit and outdoor unit)

• Always make the air conditioner power supply a special branch
circuit and provide a special breaker.

• Always use H07RN-F or equivalent as the power supply cord
and the connection cord.

CONNECTION

(1) Install the outdoor unit wall cap (supplied with the optional installation set

or procured at the site) to the wall pipe.
(2) Connect the outdoor unit and indoor unit piping.
(3) After matching the center of the flare surface and tightening the nut hand

tight, tighten the nut to the specified tightening torque with a torque wrench.

(Table 2)

FLARING

(1) Cut the connection pipe to the necessary

length with a pipe cutter.
(2) Hold the pipe downward so that cuttings

will not enter the pipe and remove the

burrs.
(3) Insert the flare nut onto the pipe and flare

the pipe with a flaring tool.

Insert the flare nut (always use the flare nut
attached to the indoor and outdoor units re­spectively) onto the pipe and perform the flare
processing with a flare tool.
Use the special R410A flare tool, or the conv­entional (for R22) flare tool.
When using the conventional flare tool, always
use an allowance adjustment gauge and se­cure the A dimension shown in table 3 .

BENDING PIPES

(1) When bending the pipe, be careful not to crush it.
(2) To prevent breaking of the pipe, avoid sharp bends.

Bend the pipe with a radius of curvature of 70mm or over.
(3)

If the copper pipe is bend the pipe or pulled to often, it will become stiff.

Do not bend the pipes more than three times at one place.

CONNECTING THE PIPING

Check if [L] is flared uniformly
and is not cracked or scratched.

Fig. 5

Die

A

Pipe

Tighten with two wrenches.

Torque
wrench

Wrench (fixed)

Flare nut

Indoor unit pipe

Connection pipe

To prevent gas leakage, coat the flare
surface with refrigerator oil.

1. Check if the piping connections are secure.

2. Check that the stems of 2-way valve and 3-way valve are closed fully.

3. Connect the gauge manifold charge hose to the charging port of the 3­way valve (side with the projection for pushing in the valve core).

4. Open the low pressure side valve of the gauge manifold fully.

5. Operate the vacuum pump and start pump down.

6. Slowly loosen the flare nut of the 3-way valve and check if air enters,
then retighten the flare nut.
(When the flare nut is loosened the operating sound of the vacuum
pump changes and the reading of the compound pressure gauge goes
from minus to zero.)

AIR PURGE

Always use a vacuum pump to purge the air.
Refrigerant for purging the air is not charged in the
outdoor unit at the factory.

Close the high pressure side valve of the gauge manifold fully and do
not operate it during the following work.

7. Pump down the system for at least 15 minutes, then check if the com­pound pressure gauge reads -0.1 MPa (-76 cmHg, -1 bar).

8. At the end of pump down, close the low pressure side gauge of the
gauge manifold fully and stop the vacuum pump.

9. Slowly loosen the valve stem of the 3-way valve. When the compound
pressure gauge reading reaches 0.1-0.2 MPa, retighten the valve stem
and disconnect the charge hose from the 3-way valve charging port.
(If the stem of the 3-way valve is opened fully before the charge hose
is disconnected, it may be difficult to disconnect the charge hose.)

10. Fully open the valve stems of the 2-way valve and 3-way valve using a hexa­gon wrench. (After the valve stem begins to turn, turn it with a torque of less
than 2.9 N • m (30 kgf • cm) until it stops turning.)

11. Firmly tighten the 2-way valve and 3-way valve blank cap and the charg­ing port cap.

CAUTION

(1)

Refrigerant must not be discharged into atmosphere.

(2) After connecting the piping , check the joints for gas

leakage with gas leak detector.

Additional charge

Refrigerant suitable for a piping length of 15 m is charged in the outdoor
unit at the factory.
When the piping is longer than 15 m, additional charging is necessary.
For the additional amount, see the table below.

Pipe length

Additional refrigerant

Table 5

15 m

None

20 m

100 g

Fig. 6

CAUTION

(1)

When adding refrigerant, add the refrigerant from the
charging port at the completion of work.

(2) The maximum length of the piping is 20 m. If the units

are further apart than this, correct operation can not
be guaranteed.

Between 15 m and 20 m, when using a connection pipe other than that
in the table, charge additional refrigerant with 20g/1 m as the criteria.

CAUTION

(1) The power source capacity must be the sum of the air conditioner current and the current of other electrical appliances. When the

current contracted capacity is insufficient, change the contracted capacity.

(2) When the voltage is low and the air conditioner is difficult to start, contact the power company the voltage raised.

Table 2 Flare nut size and tightening torque

Table 3 Pipe outside diameter

Flare nut

6.35 mm dia.

12.7 mm dia.

A (mm)

Pipe outside

diameter

ø 6.35 mm (1/4”)
ø 12.7 mm (1/2”)

Flare tool for

R410A, clutch type

0 to 0.5
0 to 0.5

Conventional (R22) flare tool

Clutch type

1.0 to 1.5

1.0 to 1.5

Wing nut type

1.5 to 2.0

1.5 to 2.0

CAUTION

(1) Fasten a flare nut with a torque wrench as instructed in this manual. If

fastened too tight, the flare nut may be broken after a long period of time
and cause a leakage of refrigerant.

(2) During installation, make sure that the refrigerant pipe is attached firmly

before you run the compressor. Do not operate the compressor under the
condition of refrigerant piping not attached properly with 2-way or 3-way
valve open. This may cause abnormal pressure in the refrigeration cycle
that leads to breakage and even injury.

Earth
screw

Connection Cord Power supply Cord

OUTDOOR UNIT WIRING

ELECTRICAL REQUIREMENT

• Electric wire size and fuse capacity:

12

3

NL

Power supply Cord

Diameter (mm) ✕ Torgue (N•m)

7 ✕ 14 ~ 18

26 ✕ 49 ~ 61

Table 4

Tightening torque

Blank cap (2-way valve) 19.6 to 24.5 N•m (200 to 250 kgf•cm)

Blank cap (3-way valve) 27.4 to 31.4 N•m (280 to 320 kgf•cm)

Charging port cap 12.3 to 15.7 N•m (125 to 160 kgf•cm)

FLOOR TYPE HALF CONCEALED KIT:UTR-STA

INSTALLATION MANUAL

(PART No. 9316532014)

● Be careful not to scratch the air conditioner when handling it.

● After installation, explain correct operation to the customer, using the operating manual.

● Let the customer keep this installation manual because it is used when the air conditioner is serviced or moved.

STANDARD ACCESSORIES

The following installation accessories are supplied.
Use them as required.

Name and Shape Q’ty

Insulation Seal

1

1. SELECTING THE MOUNTING POSITION

Fig. 1

Decide the mounting position with the customer as follows:

(1) Install the indoor unit level on a strong wall which is

not subject to vibration.

(2) The inlet and outlet ports should not be obstructed:

the air should be able to blow all over the room.

(3) Install the unit near an electric outlet or special branch

circuit.

(4) Do not install the unit where it will be exposed to direct

sunlight.

(5) Install the unit where connection to the outdoor unit it

easy.

(6) Install the unit where the drainpipe can be easily

installed.

(7) Take servicing, etc. into the unit where the filter can be

removed in Fig1. Also install the unit where the filter
can be removed.

(8) Install the place where is no gap around the unit.

2. WALL HOLE

Fig. 2

Drill a wall hole of the size shown in the Fig.2.

WARNING

Do not make a hole that is
deeper than 80mm. The prod­uct cannot be maintained.

Indoor unit

Wall

10 cm or over

8 cm or over

5 cm or over

8 cm or over

75 ~ 80 mm

730 ~ 735 mm

590 ~ 595 mm

Putting out clearance of unit

3. ATTACHMENT OF INSURATION SEAL

Fig. 4

Cut the insulation seal in length in the Fig.3 and seal the insulation seal to the indoor unit on the top and back side in Fig.4.

Fig. 3

4. INSTALLING THE INDOOR UNIT

Install the indoor unit in the wall hole and fasten the indoor unit at 4 locations each at top and middle of the unit.(Fig.5)

● Do not use the wall hook bracket at half concealed.

Please refer to the installation manual of the main body for other how to install it.

124

423

703

438

124

[Installation of indoor unit]

• Fix the indoor unit with 4 screws surely.If improperly installed, might cause to injury due to the toppling or falling.

• Install the indoor unit at the place that has adequate strength.
Install the indoor unit so that the installed unit can withstand the weight of adult body weight.
If improperly installed, might cause accidental injury due to the toppling or falling.

WARNING

720 ~ 725 mm

570 ~ 575 mm

Attachment datum: Base edge line

INSULATION SEAL

Top view

(80)

Front side

Back side

0~5 mm

INSULATION SEAL

Attachment datum
Edge of R-end

0~5 mm

0~5 mm

P/N 9316532014

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

May. 2007 Printed in Japan