Fujitsu ASYA07LGC, ASYA14LGC, AOYR07LGC, AOYR09LGC, AOYR12LGC Service Instruction

SPLIT TYPE ROOM AIR CONDITIONER

WALL MOUNTED

type

Models Indoor unit Outdoor unit

AS*A07LGC AS*A09LGC AS*A12LGC AS*A14LGC

AO*R07LGC AO*R09LGC AO*R12LGC AO*R14LGC

INVERTER

SERVICE

INSTRUCTION

R410A

CONTENTS

1. SPECIFICATION

AS*A09/12LGC, AO*R09/12LGC...................................................................................

2. DIMENSIONS

AS*A09/12LGC, AO*R09/12LGC...................................................................................

3. REFRIGERANT SYSTEM DIAGRAM

AS*A09/12LGC, AO*R09/12LGC...................................................................................

4. CIRCUIT DIAGRAM

AS*A09/12LGC, AO*R09/12LGC....................................................................................

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. 10°C HEAT OPERATION...........................................................................................

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

01-01

02-01

03-01

04-01

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 05-16

22. VARIOUS PROTECTIONS......................................................................................... 05-17

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

3. TROUBLE SHOOTING METHOD

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

8. APPENDING DATA

9. REPLACEMENT PARTS

10. INSTALLATION MANUAL

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

5. SERIAL SIGNAL DIAGNOSIS....................................................................................

6. IPM PROTECTION.....................................................................................................

7. TROUBLE SHOOTING OF REFRIGERANT CYCLE.................................................

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

1. Function setting..........................................................................................................

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

2. Jumper setting of Outdoor unit...................................................................................

5. Capacity/ Input Data...................................................................................................

4. Thermistor Resistance Values....................................................................................

08-01 08-03 08-04 08-08 08-09

07-01 07-02

07-03 07-07

07-08 07-09

1 . SPECIFICATIONS

R410A

WALL MOUNTED type

INVERTER

01-01

SPECIFICATIONS

TYPE

Cool & heat inverter

INDOOR UNIT

AS*A12LGC

OUTDOOR UNIT

AO*R12LGC

COOLING CAPACITY

3.40 kW

HEATING CAPACITY

4.00 kW

POWER SOURCE

230 V

FREQUENCY

50 Hz

RUNNING CURRENT

MAXIMUM CURRENT

4.3 A

4.6 A

INPUT WATTS

0.895 kW

0.970 kW

E.E.R.

Cooling

3.80 kW/kW

COP

Heating

Cooling

Heating

Cooling

Heating

Cooling

Heating

Cooling

Heating

4.12 kW/kW

MOISTURE REMOVAL

1.8 L/h

AIR CIRCULATION HIGH

750 m3/h

AS*A09LGC

AO*R09LGC

2.50 kW

3.20 kW

230 V

50 Hz

3.2 A

3.7 A

6.5 A

9.0 A

AS*A14LGC

AO*R14LGC

4.00 kW

5.00 kW

230 V

50 Hz

4.9 A

5.7 A

1.080 kW

1.295 kW

3.70 kW/kW

3.86 kW/kW

2.1 L/h

800 m3/h

9.0 A

10.5 A

6.0 A

7.5 A

0.630 kW

0.750 kW

3.97 kW/kW

4.27 kW/kW

1.3 L/h

750 m3/h

AS*A07LGC

AO*R07LGC

2.10 kW

3.00 kW

230 V

50 Hz

2.4 A

3.2 A

6.0 A

7.5 A

0.470 kW

0.660 kW

4.47 kW/kW

4.55 kW/kW

1.0 L/h

750 m3/h

FAN MOTOR

POWER SOURCE

230 V

High speed

INDOOR UNIT

Middle speed

Low speed

Quiet

High speed

Middle speed

Low speed

Quiet

Cool 1,440 r.p.m. Heat 1,440 r.p.m.

Cool 1,500 r.p.m. Heat 1,500 r.p.m.

Cool 1,300 r.p.m. Heat 1,300 r.p.m.

Cool 1,020 r.p.m. Heat 1,080 r.p.m.

Cool 1,200 r.p.m. Heat 1,200 r.p.m.

Cool 920 r.p.m. Heat 980 r.p.m.

Cool 680 r.p.m. Heat 700 r.p.m.

Cool 760 r.p.m. Heat 840 r.p.m.

C 730-150 r.p.m. H 650/ 470 r.p.m.

C 860- 200 r.p.m. H 760/ 680/ 470 r.p.m.

C 1050- 300 r.p.m. H 870- 480 r.p.m.

OUTDOOR UNIT

ELECTRICAL DATA

INDOOR UNIT

OUTDOOR UNIT

NOISE LEVEL

Cool 43 dB / Heat 43 dB C 44 dB/ H 44 dB

C 25 dB/ H 27 dB

C 40 dB/ H 40 dB

C 33 dB/ H 34 dB

Cool 38 dB / Heat 38 dB

Cool 33 dB / Heat 33 dB

Cool 21 dB / Heat 21 dB

C 45 dB / H 45 dB

C 48 dB / H 48 dB C 48 dB / H 49 dB

01-02

COMPRESSOR TYPE

Hermetic type,

4 pole, 3 phase,

DC inverter motor, Rotary

DISCRIMINATION

DA89X1C-20FZ 808 903 80(B)

5SS072XAA

STANDARD REFRIGERANT

REFRIGERANT TYPE

R410AR410A

800 g

650 g

WEIGHT (with oil)

9.9 kg5.9 kg

COMPRESSOR AND REFRIGERANT

Pipe Length

15 m

FULL CHARGE

20 m

900 g

R410A

1000 g

9.0 kg

1100 g750 g

MAXIMUM PIPING HEIGHT

15m

ADDITIONAL REFRIGERANT

20 g/m

WEIGHT

INDOOR UNIT

Gross / Net

10 kg / 7.5 kg

OUTDOOR UNIT

35 kg / 32 kg 44 kg / 40 kg28 kg / 25 kg

INDOOR UNIT

H x W x D

260 x 790 x 198 mm

OUTDOOR UNIT

540 x 660 x 290 mm

620 x 790 x 298mm

DIMENSIONS

TYPE

Cool & heat inverter

INDOOR UNIT

AS*A12LGC

OUTDOOR UNIT

AO*R12LGC

AS*A09LGC

AO*R09LGC

AS*A14LGC

AO*R14LGC

AS*A07LGC

AO*R07LGC

2 . DIMENSIONS

R410A

WALL MOUNTED type

INVERTER

DIMENSIONS

Models : AS*A07LGC / AO*R07LGC AS*A09LGC / AO*R09LGC AS*A12LGC / AO*R12LGC

02-01

(unit : mm)

INDOOR UNIT

OUTDOOR UNIT

260

540

198

790

660290

Models : AS*A14LGC / AO*R14LGC

02-02

(unit : mm)

INDOOR UNIT

OUTDOOR UNIT

260

198

790

67

298

620

20

3 . REFRIGERANT SYSTEM DIAGRAM

R410A

WALL MOUNTED type

INVERTER

REFRIGERANT SYSTEM DIAGRAM

Models : AS*A07LGC / AO*R07LGC AS*A09LGC / AO*R09LGC AS*A12LGC / AO*R12LGC AS*A14LGC / AO*R14LGC

03-01

2-Way valve

Strainer

3-Way valve

Muffler

4-Way valve

Expansion valve

Refrigerant direction

Heat exchanger (indoor unit)

Heat exchanger (outdoor unit)

Compressor

Cooling Heating

For AS*A07/ 09/ 12LGC Refrigerant pipe diameter Liquid : 1/4" (6.35 mm) Gas : 3/8" (9.52 mm)

For AS*A14LGC Refrigerant pipe diameter Liquid : 1/4" (6.35 mm) Gas : 1/2" (12.7 mm)

4 . CIRCUIT DIAGRAM

R410A

WALL MOUNTED type

INVERTER

CIRCUIT DIAGRAM

Models : AS*A07LGC / AO*R07LGC AS*A09LGC / AO*R09LGC AS*A12LGC / AO*R12LGC

04-01

INDOOR UNIT

OUTDOOR UNIT

RED

BLACK

RED BROWN BLUE ORANGE YELLOW WHITE

WHITE YELLOW BROWN

BLACK BLACK

RED WHITE BLACK

1 2 3 4 5 6 7

1 2 3 4 5 6

121

2

1 2 3

1 2 3 4

CN62

W4

W2

W1

W3

CN61

W10 W11

W7 W8 W9

CN800

CN40

CN501

BLACK

RED

WHITE

BLACK

GREEN

WHITE

RED

WHITE

RED

4-WAY VALVE

EXPANSION VALVE

FAN MOTOR

AO*R12LGC COMPRESSOR

CM

FM

PMV

4WV

R(R)U

C(T)W

S(S)V

LN3

TERMINAL

FUSE

250V - 20A

REACTOR

or

THERMISTOR ( PIPE TEMP. )

THERMISTOR ( DISCHARGE PIPE TEMP. )

THERMISTOR ( OUTDOOR TEMP. )

CONTROLLER

PCB ASSEMBLY

BLACK

ORANGE

RED

YELLOW

PINK

BLUE

BROWN

BLUE

RED

WHITE

BLUE

YELLOW

WHITE

BLACK

RED

GRAY GRAY

BLACK

WHITE

RED

GREEN

GREEN / YELLOW

1234567

12345

6

12345

6

1

2

1

2

12345

123

4

123

4

12345 12345

CN201

CN1

1 2

3 4 5

1 2 3 4 5

CN2

CN7

CN3

CN5

CN4

CN6

W4

TERMINAL

EARTH TERMINAL

POWER

RELAY

L N

3

L

N

POWER SOURCE

TEST

M

FM

FAN MOTOR

THERMISTOR

( ROOM TEMP. )

THERMISTOR

( PIPE TEMP. )

STEP MOTOR ( LOUVER )

CONTROLLER

PCB ASSEMBLY

( MAIN PCB )

INDICATOR PCB ASSEMBLY

THERMAL

FUSE 102

CM

S

C

R

AO*R07LGC AO*R09LGC COMPRESSOR

TO OUTDOOR UNIT

Models : AS*A14LGC / AO*R14LGC

04-02

INDOOR UNIT

OUTDOOR UNIT

RED

BLACK

RED BROWN BLUE ORANGE YELLOW WHITE

WHITE YELLOW BROWN

BLACK

RED WHITE BLACK

1 2 3 4 5 6 7

1 2 3 4 5 6

1 2 3

1 2 3 4

CN70

W4

W2

W1

W3

CN71

W10 W11

W7 W8 W9

CN800

CN40

CN30

BLACK

RED

WHITE

BLACK

BROWN

BLACK

GREEN

WHITE

RED

WHITE

RED

4-WAY VALVE

EXPANSION VALVE

FAN MOTOR

CM

FM

PMV

4WV

R

C

S

LN3

TERMINAL

FUSE

250V - 20A

REACTOR

or

THERMISTOR ( PIPE TEMP. )

THERMISTOR ( DISCHARGE PIPE TEMP. )

THERMISTOR ( OUTDOOR TEMP. )

CONTROLLER

PCB ASSEMBLY

BLACK

ORANGE

RED

YELLOW

PINK

BLUE

BROWN

BLUE

RED

WHITE

BLUE

YELLOW

WHITE

BLACK

RED

GRAY GRAY

BLACK

WHITE

RED

GREEN

GREEN / YELLOW

1234567

12345

6

12345

6

1

2

1

2

12345

123

4

123

4

12345

CN201

CN1

1 2

3 4 5

1 2 3 4 5

CN2

CN7

CN3

CN5

CN4

CN6

W4

TERMINAL

EARTH TERMINAL

POWER

RELAY

L N

3

L

N

POWER SOURCE

TEST

M

FM

FAN MOTOR

THERMISTOR

( ROOM TEMP. )

THERMISTOR

( PIPE TEMP. )

STEP MOTOR ( LOUVER )

CONTROLLER

PCB ASSEMBLY

( MAIN PCB )

INDICATOR PCB ASSEMBLY

THERMAL

FUSE 102

TO OUTDOOR UNIT

5 . DESCRIPTION OF EACH CONTROL OPERATION

R410A

WALL MOUNTED type

INVERTER

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

1. COOLING OPERATION

1-1 COOLING CAPACITY CONTROL

A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation frequency of the compressor. * If the room temperature is 2°C higher than a set temperature, the compressor operation frequency will attain to maximum performance.

minimum frequency

maximum frequency

AS*A07/ 09LGC 22Hz 76Hz 79Hz

AS*A12LGC 18Hz 80Hz 96Hz

AS*A14LGC 18Hz 70Hz 80Hz

Outside air Outside air temperature temperature

36°C

A zone

34°C

32°C

B zone

30°C

21°C

C zone

19°C

D zone

Hi Me Lo Quiet

A zone 79Hz 61Hz 52Hz 37Hz

B zone 79Hz 61Hz 52Hz 37Hz

C zone 79Hz 61Hz 52Hz 38Hz

07LGC 09LGC

D zone 52Hz 43Hz 37Hz 28Hz

E zone 64Hz 55Hz 49Hz 36Hz

F zone 64Hz 55Hz 49Hz 36Hz

A zone 96Hz 61Hz 51Hz 33Hz

B zone 96Hz 61Hz 51Hz 33Hz

C zone 96Hz 61Hz 51Hz 33Hz

12LGC

14LGC

D zone 57Hz 42Hz 36Hz 27Hz

E zone 57Hz 42Hz 36Hz 27Hz

F zone 57Hz 42Hz 36Hz 27Hz

A zone 80Hz 49Hz 38Hz 27Hz

B zone 80Hz 49Hz 38Hz 27Hz

C zone 80Hz 49Hz 38Hz 27Hz

D zone 54Hz 38Hz 30Hz 22Hz

E zone 54Hz 38Hz 30Hz 22Hz

F zone 54Hz 38Hz 30Hz 22Hz

( 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

* When the room temperature is between +2°C to -2.5°C of the setting temperature, the compressor frequency is controlled within the range shown in Table1. However, the maximum frequency is limited in the range shown in Figure 1 based on the fan speed mode and the outdoor temperature.

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

2. HEATING OPERATION

2-1 HEATING CAPACITY CONTROL

A sensor (room temperature thermistor) built in the indoor unit body will usually perceive difference or variation between a set temperature and present room temperature, and controls the operation frequency of the compressor. * If the room temperature is lower by 3°C than a set temperature, the compressor operation frequency will attain to maximum performance.

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

* When the room temperature is between +2.5°C to -3°C of the setting temperature, the compressor frequency is controlled within the range shown in Table2. However, the maximum frequency is limited in the range shown in Figure 2 based on the fan speed mode and the outdoor temperature.

( Table 2 : Compressor Frequency Range )

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

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

05-02

minimum frequency

maximum frequency

AS*A07/ 09LGC 22Hz 99Hz

AS*A12LGC

18Hz 130Hz

AS*A14LGC

18Hz 101Hz

Hi Me+ Lo Quiet

AA zone

99Hz 99Hz 79Hz 67Hz

A zone

99Hz 99Hz 79Hz 67Hz

B zone

99Hz 99Hz 79Hz 56Hz

07LGC 09LGC

C zone

AA zone

A zone

B zone

C zone

99Hz 99Hz 79Hz 46Hz

130Hz 130Hz 80Hz 68Hz

130Hz 130Hz 80Hz 54Hz

130Hz 130Hz

Me

96Hz

96Hz 80Hz 45Hz

AA zone

A zone

B zone

C zone

101Hz 101Hz 58Hz 45Hz

101Hz 101Hz 58Hz 38Hz

101Hz 101Hz

75Hz

75Hz 58Hz 30Hz

12LGC

14LGC

Outside air Outside air temperature temperature

19°C

C zone

B zone

A zone

AA zone

17°C

14°C

12°C

7°C

5°C

3. DRY OPERATION

3-1 INDOOR UNIT CONTROL

The compressor rotation frequency shall change according to the temperature, set temperature, and room temperature variation which the room temperature sensor of the indoor unit body has detected as shown in the Table 3. However, after the compressor is driven, the indoor unit shall run at operation frequency of 70Hz (for AS*A07/09LGC) or 56Hz (for AS*A12LGC) or 40Hz (for AS*A14LGC), for a minute.

Ts+0.5°C

Ts -1.5°C

Ts -0.5°C

Ts+1.5°C

( Table 3 : Compressor frequency )

( Table 4 : Indoor fan speed )

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

( Fig.4 : Indoor Fan Control )

05-03

Operating frequency

37Hz

28Hz

0Hz

07LGC 09LGC

X zone

J zone

Y zone

Operating frequency

J zone

Y zone

X zone

33Hz

25Hz

0Hz

12LGC

Operating frequency

J zone

Y zone

X zone

27Hz

20Hz

0Hz

14LGC

Room Room temperature temperature

X zone

J zone

Y zone

Compressor

ON

OFF

Indoor fan Setting air flow

Indoor fan (as shown in Table 4)

S-Lo

OFF

10 30 60 180 60 180 60 10 30

(SEC)

X zone J, Y zone

AS*A07/ 09LGC 620rpm 590rpm

AS*A12LGC

AS*A14LGC

620rpm 590rpm

760rpm 730rpm

4. AUTO CHANGEOVER OPERATION

When the air conditioner is set to the AUTO mode by remote control, operation starts in the optimum mode from among the HEATING, COOLING, DRY and MONITORING modes. During operation, the optimum mode is automatically switched in accordance with temperature changes. The temperature can be set between 18°C and 30°C in 1°C steps.

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

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

C zone

32°C

B zone

-10°C A zone

( Table.5 Operation mode selection table)

Outside air temperature (TO)

Room temperature (TB)

A zone B zone C zone

TB > TS+2°C

Monitoring

Cooling

(automatic dry)

Cooling

(automatic dry)

TS+2°C TB TS - 2°C

Monitoring Monitoring Monitoring

TB TS- 2°C Heating Heating Monitoring

When 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

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

1. Fan speed

2. FAN OPERATION

( Table 6 : Indoor Fan Speed )

AS*A07/ 09/ 12LGC

Operation mode Air flow mode Speed (rpm)

1440 1370 1200

980

Cooling

Hi

700 600 480

1440

Me+

Me

Heating

Lo

1200

920

Quiet

680

Dry

S-Lo

X zone: 680

J zone: 650

Cool air prevention

AS*A14LGC

Operation mode Air flow mode Speed (rpm)

1500 1440 1300 1080

Cooling

Hi

840 600

480

1500

Me+ Me

Me

Heating

Lo

1300 1020

Quiet

760

Dry

S-Lo

X zone: 760

J zone: 730

Cool air prevention

3. COOLING OPERATION

Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature, as shown in Figure 6. On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow of [COOL] operation modes QUIET, LOW, MED, HIGH,as shown in Table 6.

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

When the room temperature rises

When the room temperature drops

TR : Room temperature Ts : Setting temperature

TR-Ts > 2 degC

=

1 degC > TR-Ts

2 degC > TR-Ts > 1 degC

=

TR-Ts > 2.5 degC

=

1.5 degC > TR-Ts

2.5 degC > TR-Ts > 1.5 degC =

HIGH mode

MED mode

LOW mode

Indoor heat exchanger Indoor heat exchanger temperature temperature

47°C

Hi

40°C

Me+

37°C

Lo

Cool air prevention

30°C

S-Lo

The maximum value of the indoor fan speed is set as shown in Figure 8, based on the detected temperature by the indoor heat exchanger sensor on heating mode.

(Fig.8 : Cool Air Prevention Control)

05-06

40°C

28°C

32°C

34°C

5. HEATING OPERATION

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

On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow of [HEAT] operation modes QUIET, LOW, MED, HIGH, as shown in Table 6.

6. COOL AIR PREVENTION CONTROL (Heating mode)

4. DRY OPERATION

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

( Fig.7 : Airflow change - over ( Heating : AUTO ) )

TR-Ts > - 1.5 degC

=

- 2.5 degC > TR-Ts

- 1.5 degC > TR-Ts > - 2.5 degC =

TR-Ts > - 1 degC

=

- 2 degC > TR-Ts

- 1 degC > TR-Ts > - 2 degC =

When the room temperature rises

When the room temperature drops

TR : Room temperature Ts : Setting temperature

LOW mode

MED mode

MED+ mode

6. OUTDOOR FAN CONTROL

Cooling Dry Heating

AS*A07LGC AS*A09LGC

AS*A12LGC

730/ 650/ 470

860/ 760/ 470

860/ 470/ 330

230/ 200

730/ 470/ 230

230

330

( Table 8 : Outdoor fan speed )

*

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

*

It runs at 500(A-D ZONE)/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 9 without relating to the compressor frequency.

05-07

A - C

D

E

F

A - C

D

E

F

ZONE

150

730/ 470

760/ 470

230

230/ 200

330

150

650/ 470

760/ 680/ 470

AS*A14LGC 870/ 720/ 530

870/ 720/ 530/ 300

250/ 200

300

A - C

D

E

F

530

250/ 200

300

780/ 720/ 590/ 480

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 9 : Outdoor fan speed after the defrost )

1. Outdoor Fan Motor

2. Fan Speed

AC Motor DC Motor

AS*A07/ 09/ 12/ 14LGC

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

( Table 7 : Type of Motor )

Min

AS*A07/ 09/ 12LGC 900rpm

AS*A14LGC 1100rpm

7. LOUVER CONTROL

1. VERTICAL LOUVER CONTROL

2. SWING OPERATION

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

Cooling / Dry mode Heating mode Fan mode

Use the air direction adjustments within the ranges shown above.

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

Cooling / Dry mode Horizontal flow Heating mode Downward flow

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

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

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

During Monitor operation in AUTO CHANGEOVER mode, the airflow direction automatically

becomes , and it cannot be adjusted.

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

(Function Range)

(Fig 9: Air Direction Range)

(Operation Range)

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

(Swinging Range)

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

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 10.

Cooling Heating

Min Max Min Max Min Max

Dry

AS*A07/ 09LGC

AS*A12LGC

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

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

AS*A14LGC 18Hz 80Hz 18Hz 101Hz 20Hz 27Hz

AS*A07/ 09LGC

AS*A12LGC

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

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

AS*A14LGC

40Hz 59Hz 72Hz 85Hz 101Hz 110Hz

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

(Table 10 : Compressor Operation Frequency Range)

2. OPEARTION FREQUENCY CONTROL AT START UP

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

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

Time

Time Time Time

Time

(Frequency)

(Time)

Frequency

Frequency Frequency

Frequency

Time Time

Time Time Time Time

Frequency

05-09

AS*A07/ 09LGC

AS*A12LGC

120sec 60sec 40sec 50sec 80sec 60sec

AS*A14LGC

9. TIMER OPEARTION CONTROL

1. OPEARTION FREQUENCY RANGE

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

ON TIMER / OFF TIMER PROGRAM TIMER SLEEP TIMER

AS*A07/ 09/ 12/ 14LGC

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 11 : Timer Setting)

2. PROGRAM TIMER

Stop 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

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

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

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

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

[Operation contents memorized when the power is interrupted]

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

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

13. FOUR-WAY VALVE EXTENSION SELECT

14. AUTO RESTART

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 12. If the remote control is lost or battery power dissipated, this function will work without the remote control.

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

When the outdoor heat exchanger temperature is lower than 5°C and the heating operation has been stopped for 30 minutes, power is applied to the compressor and the compressor is heated. (By heating the compressor, warm air is quickly discharged when operation is started.) When operation was started, and when the outdoor temperature rises to 7°C or greater, preheating is ended.

AS*A07/ 09LGC

AS*A12LGC

780rpm 43Hz

780rpm 39Hz

AS*A14LGC

870rpm 27Hz

(Table 12)

(No timer setting available)

17. COMPRESSOR PREHEATING

18. COIL DRY OPERATION CONTROL

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

(Table 13 : COIL-DRY Operating Functions)

Indoor Fan Speed

Compressor Frequency

Louver Position

Main Unit Indication

COIL-DRY : 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 Table12.

Hi

Horizontal OFF

Room Temp is not controlled

Manual auto operation

-

19. DEFROST OPERATION CONTROL

1. CONDITION OF STARTING THE DEFROST OPERATION

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

(Table 14 : Condition of starting Defrost Operation)

AS*A07/ 09/ 12/ 14LGC

Less than 25 minutes

25 minutes to 4 hours

Does not operate

Compressor operating time

After 4 hours

- 6°C - 3°C

2. CONDITION OF THE DEFROST OPERATION COMPLETION

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

(Table 15 : Defrost Release Condition)

Release Condition

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

05-14

AS*A07/ 09/ 12/ 14LGC

Defrost Flow Chart

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

(Not defrosted for 10 minutes)

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

Heating operation start : Compressor ON

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

05-15

Compressor integrating operation: Over 25 minutes to below 240 minutes

Compressor integrating operation: Over 240 minutes

Outdoor heat exchanger temperature: Below - 6°C

Outdoor heat exchanger temperature: Below - 3°C

Defrost start

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

Defrost end

20. OFF DEFROST OPEARTION CONTROL

1. OFF DEFROST OPERATION CONDITION

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

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

AS*A09/ 12LGC

OFF Defrost Flow Chart

Heating operation stop

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

Defrost start

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

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

Defrost end

2. OFF DEFROST END CONDITION

Release Condition

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

05-16

21. 10°C HEAT OPERATION

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.

mode HEAT

setting temperature 10°C

fan mode AUTO

( Table 16 )

22. VARIOUS PROTECTIONS

1. DISCHARGE GAS TEMPERATURE OVERRISE PREVENSION CONTROL

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

AS*A07/ 09/ 12/ 14LGC

104°C 101°C 110°C

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

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

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

(Table 17 : Discharge Temperature Over Rise Prevension Control / Release 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)

05-17

[ Heating ]

OT (Control / Release)

5.5A/ 5.0A

6.0A/ 5.5A

7.0A/ 6.5A

5.5A/ 5.0A

7.0A/ 6.5A

7.5A/ 7.0A

8.5A/ 8.0A

17°C

12°C

OT : Outdoor Temperature

5°C

AS*A07/ 09LGC

OT (Control / Release)

17°C

12°C

OT : Outdoor Temperature

5°C

AS*A12LGC

OT (Control / Release)

3.5A/ 3.0A

4.0A/ 3.5A

5.5A/ 5.0A

4.0A/ 3.5A

5.0A/ 4.5A

6.0A/ 5.5A

46°C

42°C

OT : Outdoor Temperature

AS*A07/ 09LGC

OT (Control / Release)

46°C

42°C

OT : Outdoor Temperature

AS*A12LGC

7.0A/ 6.5A

9.0A/ 8.5A

10.0A/ 9.5A

OT (Control / Release)

17°C

12°C

OT : Outdoor Temperature

5°C

AS*A14LGC

4.5A/ 4.0A

6.0A/ 5.5A

8.5A/ 8.0A

OT (Control / Release)

46°C

42°C

OT : Outdoor Temperature

AS*A14LGC

[ Cooling ]

3. ANTIFREEZING CONTROL (Cooling and Dry mode)

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

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

4. COOLING PRESSURE OVERRISE PROTECTION

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

5. HIGH TEMPERATURE RELEASE CONTROL ( HEATING MODE )

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

05-18

[ AS*A07/ 09LGC ]

[ AS*A12LGC ]

52Hz or greater 49Hz

48Hz or greater 45Hz

43 49Hz

45Hz

34 40Hz 28Hz

27 36Hz 18Hz

22 28Hz OFF

OFF

Indoor heat exchange temperature

[ Control System ]

Refer to below

It returns to the normal operation

Compressor Operation

25Hz

39

Frequency down every 120 sec

[ AS*A14LGC ]

42Hz or greater 38Hz

38Hz 21 27Hz 18 20Hz

20Hz OFF

30

Frequency down every 120 sec

55°C

53°C

52°C

50°C

Outdoor temperature

Over than 10°C *1 or 12°C *2

Less than 10°C *1 or 12°C *2

*1. When the temperature rises. *2. When the temperature drops.

4°C

7°C

13°C

Temperature Temperature

The compressor frequency is decreased 3Hz every 60seconds.

6 . REFRIGERANT CAUTION -R410A-

R410A

WALL MOUNTED 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

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

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

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 carefully 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

WALL MOUNTED type

INVERTER

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

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

[Check Point]

[Notes in service]

(1) Is the input power voltage from the exclusive circuit AC outlet normal?

This model is non-insulated PCB that doesn't take the insulated structure on the PCB from this fiscal year. Be careful that it is likely to get a hock when it touches the charge part when checking. Moreover, there is a possibility of getting a shock even if it touches the secondary circuit of the display PCB or the stepping motor, etc.

(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 (AC260~400V)

(IC5, T1 or IC8,11 defective)

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

Controller PCB defective

NO

(IC8, T1 or IC6 defective)

07-01

Does not connected cable do wrong wiring?(3)

(C9 :DC 5V 0.25V)

YES (C10:DC15V 1.5V)

Is AC input voltage from AC outlet normal ?

Fault of an input power supply.

Is AC voltage between VA 1 normal?

F1, VA1 defective

Is DC voltage between terminal of C4 normal?

L1, L5, D5 defective

Switching power circuit

Is DC voltage between terminals of C10 normal? Is DC voltage between terminals of C9 normal?

Is DC voltage between terminals 3 & 4 of IC2 normal?

IC2 defective

YES (AC220/230V)

NO

Is AC voltage between 1pin & 2pin of CN1 normal?

Temp fuse defective

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 (Green)] and [Timer lamp (Orange)].

(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

Indication

Error Indication Normal indication after

3min.ST

AC Plug ON Start operation Input TEST signal

How to erase Memory

07-02

(1) 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. (Indoor unit buzzer beeps 3 seconds.)

Self - diagnosis function and Checking points

Error Indication

Operation (GREEN)

Timer

(ORANGE)

Error

(Protection)

Diagnosis Method

0.5 sec 2 times

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

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

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.)

[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 does not operate.

[Diagnosis Point]

Check thermistor resistance value (Refer to "Thermistor characteristic 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

0.5 sec 2 times

0.5 sec 3 times

0.5 sec 2 times

Wired remote controller error

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.

Check wiring Controller PCB failure

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

[Diagnosis Point]

0.5 sec 8 times

Self - diagnosis function and Checking points

Error Indication

Operation (GREEN)

Timer

(ORANGE)

Error

(Protection)

Diagnosis Method

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

Forced 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]

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

Forced 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.

After 2 minutes 20 seconds of stopping operation, the signal from outdoor unit is received even though the main relay is OFF. > Main relay OFF continues (outdoor unit OFF command)

[Diagnosis Point]

Main relay defective Controller PCB defective.

Main relay error

0.5 sec 3 times

0.5 sec 4 times

0.5 sec 2 times

0.5 sec 3 times

0.5 sec 4 times

Self - diagnosis function and Checking points

Error Indication

Operation (GREEN)

Timer

(ORANGE)

Error

(Protection)

Diagnosis Method

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

0.5 sec 2 times

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

Indoor fan speed error

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 Controller PCB defective.

[Diagnosis Point]

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

0.5 sec 3 times

Self - diagnosis function and Checking points

Error Indication

Operation (GREEN)

Timer

(ORANGE)

Error

(Protection)

Diagnosis Method

The discharge temperature error is activated. > Permanent stop.

07-06

Excessive high pressure protection on cooling

Discharge temperature error

[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 disagnosis").

Excessive high pressure protection on cooling mode has been activated. > Compressor, outdoor fan : Off (It releases after 3 minute ST).

[Diagnosis Point]

Heat radiation is blocked (Inlet /outlet). Check if outdoor fan is defective (does not rotate). Refrigeration cycle defective (Refer to after mentioned "refrigerant cycle disagnosis").

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

[Diagnosis Point]

Controller PCB defective (Refer to after mentioned "PFC circuit diagnosis")

PFC circuit error

0.5 sec 2 times

0.5 sec 3 times

0.5 sec 4 times

0.5 sec 7 times

0.5 sec 2 times

0.5 sec 3 times

0.5 sec 8 times

Output voltage error of Active filter is detected. > Permanent stop.

Check the wiring connection (Connector is loose/open, Choke coil) Controller PCB defective (Refer to after mentioned “Active Filter diagnosis”)

Active Filter Error

Active filter error or instantaneous cut off error is detected. > Compressor, Outdoor Fan : OFF

Check the wiring connection (Connector is loose/open, Choke coil)

Controller PCB defective (Refer to after mentioned “Active Filter diagnosis”)

<CAUTION> Even if the unit is normal, it may detect error depending on the power supply voltage condition.

Active Filter Error (Permanent Stop)

Serial Signal Receiving Error

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

* Remove indoor unit front panel and cable clampers 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

07-07

[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 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 IC2 failure.

Does voltage AC350 to 415V appear at 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

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

Check point (1)

Check point (2)

Open the Inverter Controller Assy and check if there is abnormal points.

Yes(Normal)

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 on Remote Control. Is the outdoor fan rotating?

Yes(Rotating)

No(Not rotating)

PCB or Compressor defective

Check point (4)

Operate the unit for certain time and check if the compressor is operating.

Yes(Operating)

The unit is normal.

No(Not operating)

IPM or PCB defective > Replace PCB

Yes(Normal)

No(Abnormal)

IPM defective

Check point (5)

Recheck, is compressor normal?

Yes(Operating)

No(Not operating)

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

07-08

1, Remove the lead of compressor. 2, Connect the P to minus and measure the U, V and W. 3, Check the balance of resistance. (+/- 10%) 4, Connect the N to plus and measure the U, V and W. 5, Check the balance of resistance. (+/- 10%) *0 is failure even when resistance is the same

(The above resistance value is a typical value. There is some distribution. As it also changes by the compressor temperature, the measured value may be much different from the above table when measured right after stopping operation.)

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

AS*A07/ 09LGC Compressor Case Temperature at 20°C: 0.740 ohm

AS*A12LGC Compressor Case Temperature at 20°C: 0.710 ohm

AS*A14LGC

Compressor Case Temperature at 25°C: 0.477 ohm

(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).

07-09

8 . APPENDING DATA

R410A

WALL MOUNTED type

INVERTER

1. Function setting

2. Jumper setting of Outdoor unit

3. Outdoor unit Pressure Value and Total Electric Current Curve

4. Thermistor Resistance Values

5. Capacity/ Input Data

08-01

8-1. FUNCTION SETTING

Follow the instructions in the Local Setup Procedure, which is supplied with the remote control, in accordance with the installed condition. After the power is turned on, perform the Function Setting on the remote control.

The settings may be selected between the following two: Function Number or Setting Value.

Settings will not be changed if invalid numbers or setting values are selected.

8-1-1 INDOOR UNIT

1-1. Setting the Cooler Room Temperature Correction

( Factory setting)

Setting Description

Function Number Setting Value

Standard

Lower control

30

00

01

Depending on the installed environment, the room temperature sensor may require a correction. The settings may be selected as shown in the table below.

1-3. Setting Other Functions

( Factory setting)

Setting Description

Function Number Setting Value

Yes

No

40

00

01

The following settings are also possible, depending on the operating conditions.

Auto Restart

( Factory setting)

Setting Description

Function Number Setting Value

Standard

Lower control

Slightly warmer control

Warmer control

31

00

01

02

03

1-2. Setting the Heater Room Temperature Correction

Depending on the installed environment, the room temperature sensor may require a correction. The settings may be changed as shown in the table below.

08-02

Settings will not be changed if invalid numbers or setting values are selected.

The settings may be selected between the following two: Function Number or Setting Value.

After the power is turned on, perform the "FUNCTION SETTING" according to the installation conditions using the remote controller.

This procedure changes to the function settings used to control the indoor unit according to the installation conditions. Incorrect settings can cause the indoor unit malfunction.

Entering the Function Setting Mode

While pressing the FAN button and SET TEMP.( ) simultaneously, press the RESET button to enter the function setting mode.

STEP 1 Selecting the Remote Control Unit Signal Code

Use the following steps to select the signal code of the remote control unit. (Note that the air conditioner cannot receive a signal code if the air conditioner has not been set for the signal code.) The signal codes that are set through this process are applicable only to the signals in the FUNCTION SETTING. For details on how to set the signal codes through the normal process, refer to SELECTING THE REMOTE CONTROL UNIT SIGNAL CODE.

(1) Press the SET TEMP. ( ) ( ) buttons to change the signal code between . Match the code on the display to the air conditioner signal code. (initially set to ) (If the signal code does not need to be selected, press the MODE button and proceed to STEP 2.)

(2) Press the TIMER MODE button and check that the indoor unit can receive signals at the displayed signal code.

The air conditioner signal code is set to A prior to shipment. Contact your retailer to change the signal code.

The remote control unit resets to signal code A when the batteries in the remote control unit are replaced. If you use a signal code other than signal code A, reset the signal code after replacing the batteries. If you do not know the air conditioner signal code setting, try each of the signal codes ( ) until you find the code which operates the air conditioner.

(3) Press the MODE button to accept the signal code, and proceed to STEP 2.

10 c HEAT

8-1-2 Procedures to change the Function Setting for wireless RC

08-03

STEP 2

(1) Press the SET TEMP. ( ) ( ) buttons to select the function number. (Press the MODE button to switch between the left and right digits.)

(2) Press the FAN button to proceed to setting the value. (Press the FAN button again to return to the function number selection.)

Selecting the Function Number and Setting Value

(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 of the power and turn it on again.

CAUTION

After turning off the power, wait 10 seconds or more before turning on it again. The FUNCTION SETTING doesn't become effective if it doesn't do so.

Function number

Setting value

(3) Press the SET TEMP. ( ) ( ) buttons to select the setting the value. (Press the MODE button to switch between the left and right digits.)

10 c HEAT

[Outdoor Unit]

JP

JM2 JM103 JM102 JM101

Normal Preheat

09LGC

Higher Preheat

Normal Preheat

12LGC

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

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

Normal Preheat

07LGC

Higher Preheat

8-2. JP(Jumper) SETTING

JP

JM500 JM103 JM102 JM101

Normal Preheat

14LGC

Higher Preheat

Model Name : AS*A07/ 09/ 12LGC

[Condition] Ambient

temperature

Indoor / Outdoor - Same temperature

Refrigerant

amount

Standard amount

Piping

length

5.0m (Height difference 1m)

Power

voltage

50Hz - 230V

Operation

condition

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

Measuring

method

[Constant Frequency Operation Method (Test mode)]

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

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

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

AS*A07/ 09LGC

AS*A12LGC

AS*A07/ 09LGC

AS*A12LGC

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

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

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

Low-pressure of outdoor unit [MPa]

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

Outdoor total electric current [A]

08-04

[50Hz-230V]

0.7

0.8

0.9

1

1.1

1.2

1.3

16 18 20 22 24 26 28 30 32

RH50% RH60% RH70%

[50Hz-230V]

0.6

0.7

0.8

0.9

1

1.1

1.2

16 18 20 22 24 26 28 30 32

RH50%

RH60%

RH70%

[50Hz-230V]

2.6

2.8

3

3.2

3.4

3.6

16 18 20 22 24 26 28 30 32

RH50% RH60% RH70%

[50Hz-230V]

3.4

3.6

3.8

4

4.2

4.4

4.6

4.8

16 18 20 22 24 26 28 30 32

RH50%

RH60%

RH70%

8-3. Outdoor unit Pressure Value and Total Electric Current Curve

8-3-1 Cooling operation

Model Name : AS*A14LGC

[Condition] Ambient

temperature

Indoor / Outdoor - Same temperature

Refrigerant

amount

Standard amount

Piping

length

5.0m (Height difference 1m)

Power

voltage

50Hz - 230V

Operation

condition

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

Measuring

method

[Constant Frequency Operation Method (Test mode)]

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

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

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

AS*A14LGC

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

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

In/outdoor ambient temparature [degC]

Low-pressure of outdoor unit [MPa]

In/outdoor ambient temparature [degC]

Outdoor total electric current [A]

08-05

[50Hz-230V]

0.6

0.7

0.8

0.9

1

1.1

1.2

16 18 20 22 24 26 28 30 32

RH50%

RH60%

RH70%

[50Hz-230V]

3.4

3.6

3.8

4

4.2

4.4

4.6

4.8

16 18 20 22 24 26 28 30 32

RH50%

RH60%

RH70%

Model Name : AS*A07/ 09/ 12LGC

[Condition] Ambient

temperature

Indoor 15, 20, 23degC, Outdoor 2, 7, 12degC

Refrigerant

amount

Standard amount

Piping 5.0m (Height difference 1m)

Power

voltage

50Hz - 230V

Operation

condition

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

Measuring

method

[Constant Frequency Operation Method (Test mode)]

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

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

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

AS*A07/ 09LGC

AS*A12LGC

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

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

High-pressure of outdoor unit [MPa]

Outdoor ambient temparature [degC]

Outdoor total electric current [A]

length

08-06

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

8-3-2 Heating operation

[50Hz-230V]

2.2

2.4

2.6

2.8

3

3.2

0 2 4 6 8 10 12 14

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

[50Hz-230V]

4.4

4.8

5.2

5.6

0 2 4 6 8 10 12 14

15 degC

20 degC (Indoor ambient temp.)

23 degC

[50Hz-230V]

2.6

2.8

3

3.2

3.4

3.6

3.8

0 2 4 6 8 10 12 14

[50Hz-230V]

5.6

6

6.4

6.8

7.2

7.6

0 2 4 6 8 10 12 14

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

Model Name : AS*A14LGC

[Condition] Ambient

temperature

Indoor 15, 20, 23degC, Outdoor 2, 7, 12degC

Refrigerant

amount

Standard amount

Piping 5.0m (Height difference 1m)

Power

voltage

50Hz - 230V

Operation

condition

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

Measuring

method

[Constant Frequency Operation Method (Test mode)]

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

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

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

AS*A14LGC

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

Outdoor ambient temparature [degC]

High-pressure of outdoor unit [MPa]

Outdoor ambient temparature [degC]

Outdoor total electric current [A]

length

08-07

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

[50Hz-230V]

2.2

2.4

2.6

2.8

3.0

3.2

3.4

3.6

3.8

0 2 4 6 8 10 12 14

[50Hz-230V]

5.0

5.2

5.4

5.6

5.8

6.0

6.2

6.4

6.6

6.8

7.0

0 2 4 6 8 10 12 14

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

15 degC

20 degC (Indoor ambient temp.)

23 degC

0.00 33.62 1.15 0.00 176.03 1.10

5.00 25.93 1.39 5.00 134.23 1.36

10.00 20.18 1.66 10.00 103.34 1.63

15.00 15.84 1.94 15.00 80.28 1.92

20.00 12.54 2.22 20.00 62.91 2.21

25.00 10.00 2.50 25.00 49.70 2.51

30.00 8.04 2.77 30.00 39.57 2.79

35.00 6.51 3.03 35.00 31.74 3.06

40.00 5.30 3.27 40.00 25.64 3.30

45.00 4.35 3.48 45.00 20.85 3.53

50.00 3.59 3.68 50.00 17.06 3.73

55.00 2.98 3.85 55.00 14.10 3.90

60.00 2.47 4.00 60.00 11.64 4.55

65.00 2.09 4.14 65.00 9.69 4.19

70.00 1.76 4.25 70.00 8.12 4.30

75.00 1.49 4.35 75.00 6.83 4.40

80.00 1.27 4.44 80.00 5.78 4.48

85.00 1.09 4.51 85.00 4.91 4.55

90.00 0.93 4.57 90.00 4.19 4.61

95.00 0.81 4.63 95.00 3.59 4.66

100.00

0.70

4.67

100.00

3.09

4.71

0.00 168.6 0.36 -20.00 48.13 0.45 -20.00 101.7 1.37

5.00 130.7 0.45 -15.00 36.07 0.58 -15.00 76.31 1.67

10.00 102.2 0.56 -10.00 27.29 0.74 -10.00 57.73 1.99

15.00 80.51 0.70 -5.00 20.84 0.93 -5.00 44.01 2.33

20.00 63.89 0.85 0.00 16.05 1.14 0.00 33.80 2.66

25.00 51.05 1.01 5.00 12.45 1.38 5.00 26.14 2.97

30.00 41.07 1.20 10.00 9.736 1.64 10.00 20.35 3.27

35.00 33.26 1.41 15.00 7.672 1.91 15.00 15.96 3.53

40.00 27.09 1.62 20.00 6.090 2.19 20.00 12.59 3.76

45.00 22.20 1.85 25.00 4.869 2.47 25.00 10.00 3.96

50.00 18.29 2.08 30.00 3.918 2.74 30.00 7.990 4.14

55.00 15.15 2.31 35.00 3.173 3.00 35.00 6.423 4.28

60.00 12.62 2.54 40.00 2.586 3.24 40.00 5.192 4.40

65.00 10.56 2.76 45.00 2.120 3.46 45.00 4.222 4.50

70.00 8.878 2.97 50.00 1.747 3.66 50.00 3.451 4.59

75.00 7.498 3.17 55.00 1.448 3.83 55.00 2.836 4.66

80.00 6.361 3.36 60.00 1.206 3.99 60.00 2.343 4.71

85.00 5.419 3.53 65.00 1.009 4.12 65.00 1.945 4.76

90.00 4.635 3.69 70.00 0.849 4.24 70.00 1.623 4.80

95.00 3.980 3.83 75.00 0.717 4.34 75.00 1.361 4.83

100.00 3.430 3.96 80.00 0.608 4.43 80.00 1.146 4.85

105.00 2.967 4.07 85.00 0.518 4.51 85.00 0.970 4.88

110.00 2.575 4.17 90.00 0.444 4.57 90.00 0.824 4.89

115.00 2.243 4.26 95.00 0.381 4.63 95.00 0.703 4.91

120.00

1.960

4.34

100.00

0.328

4.68

100.00

0.602 4.92

Room temperature thermistor

Temp ( C)

Resistance(k )

Voltage(V)

Indoor heat exchanger thermistor

Temp ( C)

Resistance(k )

Voltage(V)

Discharge thermistor

Temp ( C)

Resistance(k )

Voltage(V)

Outdoor heat exchanger thermistor

Temp ( C)

Resistance(k )

Voltage(V)

Temp ( C)

Resistance(k )

Voltage(V)

Outdoor temperature thermistor

08-08

8-4. Thermistor Resistance Values

8-4-1 INDOOR UNIT

8-4-2 OUTDOOR UNIT

08-09

MODEL : AS*A07LGC

COOLING

HEATING

8-5. Capacity/ Input Data

°CDB

°CWB

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

1.97

1.87

1.76

1.66

1.48

1.37

2.19

2.08

1.97

1.85

1.65

1.53

1.41

1.34

1.26

1.19

1.06

0.98

0.34

0.38

0.42

0.46

2.26

2.15

2.03

1.91

1.70

1.58

1.53

1.45

1.37

1.29

1.15

1.07

0.34

0.38

0.42

0.46

2.41

2.29

2.17

2.04

1.82

1.68

1.54

1.46

1.38

1.30

1.16

1.07

0.34

0.38

0.42

0.47

2.49

2.36

2.23

2.10

1.87

1.74

1.66

1.58

1.49

1.40

1.25

1.16

0.34

0.38

0.43

0.47

2.64

2.50

2.37

2.23

1.98

1.84

1.65

1.57

1.48

1.39

1.24

1.15

0.35

0.39

0.43

0.47

2.79

2.65

2.50

2.35

2.10

1.94

1.76

1.67

1.58

1.49

1.32

1.23

0.35

0.39

0.44

0.48

1.40

1.33

1.26

1.18

1.05

0.98

0.33

0.37

0.41

0.45

Outdoor temperature

182123

25

121516

183223

AFR

12.5

271929

21

°CDB

20

25

30

35

40

43

°CDB

°CDB °CWB TC PI TC PI TC PI TC PI TC PI

-15 -16

2.25

2.56

2.93

3.47

4.05

4.41

4.64

4.81

0.99

1.02

1.05

1.09

1.15

1.17

1.19

1.18

2.19

2.50

2.86

3.39

3.96

4.31

4.53

4.69

1.01

1.04

1.07

1.12

1.17

1.20

1.21

1.20

2.14

2.43

2.79

3.31

3.86

4.20

4.42

4.58

1.03

1.06

1.10

1.14

1.19

1.22

1.24

1.23

2.09

2.37

2.72

3.23

3.76

4.10

4.31

4.46

1.05

1.08

1.12

1.16

1.22

1.25

1.26

1.25

2.03

2.31

2.65

3.14

3.67

3.99

4.20

4.35

1.07

1.11

1.14

1.19

1.24

1.27

1.29

1.27

-10 -11

-5 -7

0 -2

5 3

7 6

10 8

15 10

Outdoor temperature

Indoor temperature

1618202224

AFR

12.5

AFR : Air flow rate (m3/min)

TC : Total capacity (kW)

SHC : Sensible Heat capacity (kW)

PI : Power Input (kW)

AFR : Air flow rate (m3/min)

TC : Total capacity (kW)

PI : Power Input (kW)

08-10

MODEL : AS*A09LGC

COOLING

HEATING

°CDB

°CWB

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

2.34

2.22

2.10

1.98

1.76

1.63

2.61

2.48

2.34

2.20

1.96

1.82

1.61

1.53

1.44

1.36

1.21

1.12

0.45

0.50

0.56

0.62

2.70

2.56

2.42

2.28

2.03

1.88

1.75

1.66

1.57

1.48

1.32

1.22

0.45

0.51

0.56

0.62

2.87

2.73

2.58

2.43

2.16

2.00

1.76

1.67

1.58

1.48

1.32

1.22

0.46

0.51

0.57

0.63

0.62

2.96

2.81

2.66

2.50

2.23

2.07

1.90

1.80

1.70

1.60

1.43

1.32

0.46

0.51

0.57

0.63

3.14

2.98

2.82

2.65

2.36

2.19

1.89

1.79

1.70

1.59

1.42

1.32

0.46

0.52

0.58

0.64

0.63

3.32

3.15

2.98

2.80

2.50

2.31

2.01

1.91

1.81

1.70

1.51

1.40

0.47

0.53

0.58

0.64

1.60

1.52

1.44

1.35

1.20

1.12

0.44

0.50

0.55

0.61

Outdoor temperature

182123

25

121516

183223

AFR

12.5

271929

21

°CDB

20

25

30

35

40

43

°CDB

°CDB °CWB TC PI TC PI TC PI TC PI TC PI

-15 -16

2.25

2.56

2.93

3.47

4.05

4.41

4.64

4.81

0.99

1.02

1.05

1.09

1.15

1.17

1.19

1.18

2.19

2.50

2.86

3.39

3.96

4.31

4.53

4.69

1.01

1.04

1.07

1.12

1.17

1.20

1.21

1.20

2.14

2.43

2.79

3.31

3.86

4.20

4.42

4.58

1.03

1.06

1.10

1.14

1.19

1.22

1.24

1.23

2.09

2.37

2.72

3.23

3.76

4.10

4.31

4.46

1.05

1.08

1.12

1.16

1.22

1.25

1.26

1.25

2.03

2.31

2.65

3.14

3.67

3.99

4.20

4.35

1.07

1.11

1.14

1.19

1.24

1.27

1.29

1.27

-10 -11

-5 -7

0 -2

5 3

7 6

10 8

15 10

Outdoor temperature

Indoor temperature

1618202224

AFR

12.5

AFR : Air flow rate (m3/min)

TC : Total capacity (kW)

SHC : Sensible Heat capacity (kW)

PI : Power Input (kW)

AFR : Air flow rate (m3/min)

TC : Total capacity (kW)

PI : Power Input (kW)

08-11

MODEL : AS*A12LGC

COOLING

HEATING

°CDB

°CWB

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

3.18

3.03

2.86

2.69

2.27

2.09

3.55

3.37

3.19

2.99

2.53

2.33

2.21

2.11

1.99

1.87

1.58

1.45

0.62

0.71

0.79

0.88

0.82

3.67

3.49

3.30

3.09

2.62

2.41

2.29

2.17

2.03

1.72

1.58

0.63

0.71

0.79

0.88

0.82

3.91

3.72

3.52

3.30

2.79

2.57

2.41

2.30

2.17

2.04

1.72

1.59

0.63

0.72

0.80

0.89

0.83

4.03

3.83

3.63

3.40

2.87

2.65

2.61

2.48

2.35

2.20

1.86

1.71

0.64

0.72

0.81

0.895

0.83

4.27

4.06

3.84

3.60

3.05

2.81

2.60

2.47

2.34

2.19

1.85

1.71

0.64

0.73

0.81

0.90

0.84

4.51

4.29

4.06

3.81

3.22

2.96

2.77

2.63

2.49

2.33

1.97

1.82

0.65

0.74

0.82

0.91

0.85

2.20

2.09

1.98

1.86

1.57

1.45

0.61

0.70

0.78

0.86

0.80

Outdoor temperature

182123

25

121516

183223

AFR

12.5

271929

21

°CDB

20

25

30

35

40

43

°CDB

°CDB °CWB TC PI TC PI TC PI TC PI TC PI

-15 -16

3.40

3.76

4.18

4.68

5.0

5

.36

5.55

5.54

1.72

1.7

2

1

.72

1.72

1.52

1.51

1.5

1

.41

3.32

3.67

4.08

4.57

4.9

3

5.23

5.42

5.41

1.76

1.7

6

1

.76

1.76

1.55

1.54

1.5

4

1

.44

3.24

3.5

8

3

.98

4.46

4.81

5.10

5.2

9

5

.28

1.80

1.79

1.80

1.5

8

1.57

1.47

3.16

3.4

9

3

.88

4.35

4.69

4.97

5.1

6

5

.15

1.83

1.8

3

1

.83

1.83

1.61

1.60

1.6

0

1

.50

3.07

3.4

0

3

.78

4.24

4.57

4.85

5.0

2

5

.01

1.87

1.86

1.87

1.6

4

1.63

1.53

-10 -11

-5 -7

0 -2

5 3

7 6

10 8

15 10

Outdoor temperature

Indoor temperature

1618202224

AFR

12.5

AFR : Air flow rate (m3/min)

TC : Total capacity (kW)

SHC : Sensible Heat capacity (kW)

PI : Power Input (kW)

AFR : Air flow rate (m3/min)

TC : Total capacity (kW)

PI : Power Input (kW)

08-12

MODEL : AS*A14LGC

COOLING

HEATING

°CDB

°CWB

TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI

3.72

3.55

3.36

3.16

2.78

2.53

4.14

3.95

3.75

3.52

3.09

2.82

2.60

2.48

2.35

2.21

1.94

1.77

0.76

0.86

0.96

1.06

1.04

1.03

4.29

4.08

3.87

3.64

3.20

2.91

2.83

2.69

2.55

2.40

2.11

1.92

0.77

0.87

0.96

1.06

1.05

1.03

4.57

4.35

4.13

3.88

3.41

3.11

2.83

2.70

2.56

2.41

2.12

1.93

0.78

0.87

0.97

1.07

1.06

1.04

4.71

4.49

4.26

4.00

3.51

3.20

3.06

2.92

2.77

2.60

2.28

2.08

0.78

0.88

0.98

1.08

1.06

1.05

4.99

4.76

4.51

4.24

3.73

3.39

3.05

2.91

2.76

2.59

2.28

2.07

0.79

0.89

0.99

1.09

1.08

1.06

5.28

5.03

4.77

4.48

3.94

3.59

3.25

3.10

2.94

2.76

2.42

2.21

0.80

0.90

1.00

1.10

1.09

1.07

2.58

2.46

2.34

2.19

1.93

1.76

0.75

0.85

0.94

1.04

1.03

1.01

Outdoor temperature

182123

25

121516

183223

AFR

13.3

271929

21

°CDB

20

25

30

35

40

43

°CDB

°CDB °CWB TC PI TC PI TC PI TC PI TC PI

-15 -16

3.26

3.72

4.21

4.85

5.3

3

5

.57

5.66

5.72

1.69

1.7

7

1

.85

1.97

1.91

1.92

1.8

3

1

.77

3.19

3.63

4.11

4.74

5.2

1

5.43

5.53

5.59

1.72

1.8

1

.89

2.02

1.95

1.96

1.8

7

1

.81

3.11

3.5

4

.01

4.62

5.08

5.30

5.3

9

5

.45

1.76

1.84

1.93

2.06

1.9

9

2.00

1.91

1.85

3.03

3.4

5

3

.91

4.51

4.95

5.17

5.2

6

5

.31

1.79

1.8

8

1

.97

2.10

2.03

2.04

1.9

5

1

.88

2.95

3.3

6

3

.81

4.39

4.83

5.04

5.1

2

5

.18

1.83

1.92

2.01

2.14

2.0

7

2.08

1.99

1.92

-10 -11

-5 -7

0 -2

5 3

7 6

10 8

15 10

Outdoor temperature

Indoor temperature

1618202224

AFR

13.3

AFR : Air flow rate (m3/min)

TC : Total capacity (kW)

SHC : Sensible Heat capacity (kW)

PI : Power Input (kW)

AFR : Air flow rate (m3/min)

TC : Total capacity (kW)

PI : Power Input (kW)

9 . REPLACEMENT PARTS

R410A

WALL MOUNTED type

INVERTER

Air Filter

Front Panel

Receiver Window

Clamper (Grille)

Intake Grille

Panel Cover

Remote Control

Remote Control Holder

REPLACEMENT PARTS

09-01

Models : AS*A07LGC AS*A09LGC AS*A12LGC AS*A14LGC

Evaporator Assy

Joint Pipe Assy

Filter Guide

Evaporator Holder R

Evaporator Holder L

Rear Bracket

09-02

REPLACEMENT PARTS

Models : AS*A07LGC AS*A09LGC AS*A12LGC AS*A14LGC

Casing Cover B

Casing Cover F

R and L Louver B

Fan Guard

Fan Motor

Crossflow Fan Assy

Shaft Holder C

Louver U

Louver Z

Bracket Panel

Casing

Motor Cover

Louver Gear Holder

Louver Gear

Motor Step

Drain Hose Assy

Drain Cap

09-03

REPLACEMENT PARTS

Models : AS*A07LGC AS*A09LGC AS*A12LGC AS*A14LGC

Display PCB Assy

Display Case

Power Cord Assy

Controller PCB Assy

Control Box

Box Shield

Control Cover

Cover Shield

09-04

REPLACEMENT PARTS

Models : AS*A07LGC AS*A09LGC AS*A12LGC AS*A14LGC

Top Panel Assy

Front Panel Assy

Protective Net

Cabinet Left Assy

Emblem

Switch Cover

Valve Bracket

Cabinet Right Assy

Valve Bracket Cover

Motor Bracket

Propeller Fan

REM Plate Assy

Reactor Assy

Separator Assy

Fan Motor

09-05

REPLACEMENT PARTS

Models : AO*R07LGC AO*R09LGC AO*R12LGC

Fan Ring

Separate Pipe Assy (Cond)

Exit Pipe

Compressor Assy

3 way Valve Assy

Pulse Motor Valve Assy

Expansion Valve Coil

Discharge Pipe Assy

Muffler

4 way Valve

Cushion

2 way Valve Assy

Base Assy

Condenser Assy

Entrance Pipe Assy (Cond)

09-06

REPLACEMENT PARTS

Models : AO*R07LGC AO*R09LGC

Models : AO*R12LGC

Separate Pipe Assy (Cond)

Exit Pipe

Compressor Assy

3 way Valve Assy

Pulse Motor Valve Assy

Expansion Valve Coil

Joint Pipe Assy (Cond)

Suction Pipe Assy

Muffler

4 way Valve

Cushion

2 way Valve Assy

Base Assy

Condenser Assy

Entrance Pipe Assy (Cond)

Discharge Pipe Assy

Terminal

Terminal Cover

Controller PCB Assy

Sealed Panel

Inverter Case Assy

PCB Holder

09-07

REPLACEMENT PARTS

Models : AO*R07LGC AO*R09LGC AO*R12LGC

Bracket Terminal

Heat sink A

Heat sink B

Top Panel Assy

Front Panel Assy

Protective Net

Condenser Assy

Emblem

Switch Cover

Base Assy

Motor Bracket

Propeller Fan

Fan Motor

09-08

REPLACEMENT PARTS

Models : AO*R14LGC

Fan Ring

Separate Wall Sub Assy

09-09

REPLACEMENT PARTS

Models : AO*R14LGC

OUTDOOR UNIT

Bracket Valve Cover

Expansion Valve Coil

Bracket Valve

2-Way Valve Assy

Pulse Motor Valve Assy

Suction Pipe Assy

3-Way Valve Assy

Discharge Pipe Assy

4-Way Valve

Muffler (3-Way Valve)

Pipe (Cond Sepa) Assy

Entrance Pipe Assy

Compressor Assy

Pipe (Cond Ex) Assy

09-10

REPLACEMENT PARTS

Models : AO*R14LGC

PCB Holder

Inverter Case

Terminal

OUTDOOR UNIT

Inverter Case Cover

Controller PCB Assy

10 . INSTALLATION MANUAL

R410A

WALL MOUNTED 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) Never cut the power cord, lengthen or shorten the cord, or change the plug. (5) Also do not use an extension cord. (6) Plug in the power cord plug firmly. If the receptacle is loose, repair it before using the room air conditioner.

(7) 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.

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 (large)

Cloth tape

1

2

One set of following parts are necessary in istallation 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.

1

8

2

Tapping screw (small)

Air cleaning filter

2

Decide the mounting position with the customer as follows:

1. INDOOR UNIT

(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. 2). Also install the unit where the filter can be removed.

2. OUTDOOR UNIT

(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 you neighbors into consideration so that they are not disturbed

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 indoor and outdoor units 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. (4) Install the indoor unit on the wall where the height

from the floors more than 180 cm.

SELECTING THE MOUNTING POSITION

[Indoor unit piping direction]

The piping can be connected in the six directions indicated in (Fig. 1). When the piping is connected in direction 2, 3, 4 or 5, cut along the piping groove in the side of the front cover with a hacksaw.

INSTALLATION DIAGRAM OF INDOOR AND OUTDOOR UNITS

Fig. 2

[INDOOR UNIT]

Fig. 1

1 Rear outlet

2 Right

outlet

3 Bottom outlet

4 Left bottom

outlet

5 Left

outlet

[OUTDOOR UNIT]

(Rear)

FRONT PANEL REMOVAL AND INSTALLATION

Fig. 4

INTAKE GRILLE REMOVAL

(1) Open the intake grille. (2) Pull down the knob. (3) Lift the intake grille upward, until the axle at the top of the in-

take grille is removed.

INTAKE GRILLE INSTALLATION

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

FRONT PANEL REMOVAL

(1) Remove intake grille (Reference the intake grille removal.) (2) Remove wire cover. (3) Remove three screws. (4) The front panel is pulled to the front, raising the upper surface,

and a front panel is removed.

THE FRONT PANEL INSTALLATION

(1) Firstly, fit the lower part of the front panel, and insert top and

bottom hooks. (Three top sides, eight bottom sides) (2) Three screws is attached. (3) The wire cover is attached. (4) The intake grille is attached.

Front panel

Bearing

Mounting shaft

Intake grille

Knob

Front panel

Fig. 3

Drain hose

Outdoor unit bottom

Remote control unit holder

1

Drain pipe

1

POWER

Installation instruction on the back.

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 for increasing the voltage.

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 power cord. (6) Perform wiring work in accordance with standards so that the

air conditioner can be operated safely and correctly.

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

laws and regulations and electric company standards.

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 installat-

ion manuals to the customer.

CUSTOMER GUIDANCE

CAUTION

Install the front panel and intake grille securely. If installation is imperfect, the front panel or intake grille may fall off and cause injury.

Be sure that the top hole of the front panel is hooked securely to the hook of the base.

Bottom holes

(six position)

Front panel

Indoor unit

Bottom hooks (two position)

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.

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

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

(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.

6 Left rear

outlet

CAUTION

(1) When the outdoor temperature is 0 °C or less, do not use the accessory

drain pipe and drain cap. If the drain pipe and drain cap are used, the drain water in the pipe may freeze in extremety cold weather. (Reverse cycle model only)

(2) 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).

Remote

control unit

Connection Cord

Conform to Type245 IEC57 (1 or 1.5 mm2)

10 cm or over

60 cm or over

10 cm or over

20 cm or over

Tapping

screw

(small)

Remote

control unit

holder

6 cm or over

Wall hook bracket

5 cm or over

150 cm or over

(Wall cap)

180 cm or over

5 cm or over

25 cm or over

9 cm or over

45.4 cm

32 cm

Bottom hooks

(six position)

Bottom holes (two position)

Top holes (two sides)

Top hole (center)

Top hook (center)

Front panel

Top hooks (two sides)

Indoor unit

Remote control unit holder

1

Drain pipe

Wire cover

Screws (Wire cover)

Screws (3 position)

SPLIT TYPE ROOM AIR CONDITIONER

INSTALLATION MANUAL

(PART NO. 9317265003-01)

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

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 use copper pipes thinner than 0.8mm even when it is available on the market.

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.

Table 1 Thicknesses of Annealed Copper Pipes

(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

Thickness (mm)

Nominal diameter

1/4

3/8

Outer diameter

(mm)

6.35

9.52

R410A

0.80

[ref.] R22

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.

FINISHING

(1) Insulate between pipes.

● For rear, right, and bottom piping, overlap the connection pipe insulation and indoor unit pipe insulation and bind them with vinyl tape so that there is no gap.

● For left and left rear piping, butt the connection pipe insulation and indoor unit pipe insulation together and bind them with and vinyl tape so that there is no gap.

●

For left and left rear piping, wrap the area which accommodates the rear piping storage section with cloth tape.

● For left and left rear piping, bind the connection cord to the top of the pipe with vinyl tape.

● For left and left rear piping, bundle the piping and drain hose together by wrapping them with cloth tape over within the range of which they fit into the rear piping storage section.

(2) Temporarily fasten the connection cord along the connection pipe with vinyl tape. (Wrap

to about 1/3 the width of the tape from the bottom of the pipe with tape so that water does not enter.)

(3) Fasten the connection pipe to the outside wall with saddles, etc. (4) Fill the gap between the outside wall pipe hole and the pipe with sealant so that rain

water and wind cannot blow in.

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

Fig. 16

Fig. 15

Pipe

(Saddle)

(Outside wall cap)

(Sealant)

(Outdoors)

Pipe

Drain hose

Cloth tape

Wrap with cloth tape

Left piping

Connection cord

Pipe

Drain hose

For connection from the left rear

Connection cord

Wall pipe

Connection pipe

Check the following:

GOOD

Lifted up

Wave

End in water

Overlap the insulation

Bind the pipes together so that there is no gap.

Connection pipe (insulation)

Vinyl tape

Wall

Indoor unit pipe (insullation)

Drain hose

BAD

BAD BAD

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 3-way 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.)

OUTDOOR UNIT

OUTDOOR UNIT INSTALLATION

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.

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

to minimize shock and vibration.

● Do not set the unit directly on the ground because it will cause trou-

ble.

Connector cover removal

● Remove the tapping screws.

Installing the connector cover

(1) After inserting the four hooks, then push upward. (2) Tighten the tapping screws.

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.

Fig. 11

CAUTION

(1) Refrigerant must not be discharged into

atmosphere.

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

gas leakage with gas leak detector.

OUTDOOR UNIT WIRING

(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.

(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 connec-

tion cord with the cord clamp. (If the insulator is

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

Only use for interconnection between two units.

CAUTION

35mm

12mm

5mm

12mm

25mm

Fig. 13

Sheath

Cord clamp

Earth screw

Outdoor unit terminal blockIndoor unit terminal block

Connection cord

Earth screw

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)

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 airflowdirection 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?

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.

Connector cord

Cord clamp

Control box

Fig. 14

Connector 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.)

Fig. 12

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

Tapping screw

Rear hooks

Connector cover

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.

Control box cover

Transmitter section

Test run button

Fig. 17

P/N 9317265003-01

L N

3

Drain hose Saddle

INDOOR UNIT

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) When cutting the wall hole at the inside of the installation frame, cut

the hole within the range of the left and right center marks of the installation frame. When cutting the wall hole at the outside of the installation frame, cut the hole at least 10 mm lower.

(3) Cut the hole so that the outside end is lower (5 to 10 mm) than the

inside end.

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

will occur.

(5) 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)

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

water will flow freely. (Fig. 5)

Fig. 5

Fasten with vinyl tape

(Wall cap)

(Wall pipe)

(Inside) Wall (Outside)

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

(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 installation may cause a fire.

(3) Always fasten the outside covering of the connec-

tion cord with the cord clamp. (If the insulator is

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

Only use for interconnection between two units.

Fig. 10

CAUTION

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

INDOOR UNIT WIRING

Connection cord

40 mm

12 mm

60 mm

12 mm

5 mm

Wire cover

Cord clamp

Screw

Connection cord

Insert the tab into the square hole of the indoor unit and fasten with a screw.

INSTALLING THE WALL HOOK BRACKET

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

tally 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 6 or more screws through

the holes near the outer edge of the bracket.

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

FORMING THE DRAIN HOSE AND PIPE

WARNING

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

[Rear piping, Right piping, Bottom piping]

● Install the indoor unit piping in the direction of the wall hole and bind

the drain hose and pipe together with vinyl tape. (Fig. 7)

● Install the piping so that the drain hose is at the bottom.

● Wrap the pipe of the indoor unit that visible from the outside with

decorative tape.

[For Left rear piping, Left piping]

Interchange the drain cap and the drain hose.

Fig. 6

Fig. 7

CAUTION

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

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

● When inserting, be sure not to attach any material

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

● After removing drain hose, be sure not to forget

mounting drain cap.

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

of piping.

CAUTION

Install the wall hook bracket horizontally and perpendicularly.

Removal method of drain hose

● Remove the screw at the left of drain hose and pull out drain hose.

Installation method of drain hose

● Vertically insert the drain hose toward the inside, so that the drain fixture can accurately align with the screw hole around the drain cock. After inserting and before replacing, please reinstall and fix the removed screws.

Right piping

Bind with vinyl tape

Indoor unit drain hose (bottom)

Pipe (top)

Rear piping Bottom piping

●

Be sure to install around the drain hose connector.

● As the screw is inside, be sure to use screwdriver treated with

magnet.

Screw Drain hose

Drain fixture

Screw hole

Drain hose

Screw

Drain cock

Drain fixture

●

For left piping and left rear piping, align the marks on the wall hook bracket and shape the connection pipe.

● Bend the connection piping at the bend radius of 70 mm or more and

install no more than 35 mm from the wall.

● After passing the indoor piping and drain hose through the wall hole,

hang the indoor unit on the hooks at the top and bottom of the wall hook bracket.

[Installing the indoor unit]

● Hang the indoor unit from the hooks at the top of the wall hook bracket.

● Insert the spacer, etc. between the indoor unit and the wall hook

bracket and separate the bottom of the indoor unit from the wall.

Fig. 8

After hooking the indoor unit to the top hook, hook the fittings of the indoor unit to the two bottom hooks while lowering the unit and pushing it against the wall.

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.

Fig. 9

Die

A

Pipe

Top hooks

Indoor unit

Bottom hooks

Wall hook bracket

Indoor unit

Wall hook bracket

(Spacer)

Table 2 Flare nut tightening torque

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.

Table 3 Pipe outside diameter

Flare nut

6.35 mm dia.

9.52 mm dia.

Tightening torque

15.7 to 17.6 N

• m

(160 to 180 kgf

• cm)

29.4 to 41.1 N

• m

(300 to 420 kgf

• cm)

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

Wing nut type

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.

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 cock.

No gap

Hexagonal wrench

Drain cock

Drain cap

Indoor unit drain hose

Remove the drain cap by pulling at the projection at the end of the cap with pliers, etc.

For left outlet piping, cut off the piping outlet cutting groove with a hacksaw.

Center mark

at least 10 mm lower

Center mark

65 mm dia. hole 65 mm dia. hole

at least 10 mm lower

5 to 10 mm low

Wall hook bracket

Tapping screw

Connection pipe (6.35 mm dia.)

Connection pipe (9.52 mm dia.)

Align the marks. Bend (R70) with a pipe bender

Screw

Wire cover

Screw

Cord clamp

Connection

cord

( )

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) Never cut the power cord, lengthen or shorten the cord, or change the plug. (5) Also do not use an extension cord. (6) Plug in the power cord plug firmly. If the receptacle is loose, repair it before using the room air conditioner.

(7) 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.

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 (large)

Cloth tape

1

2

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

ELECTRICAL REQUIREMENT

1

8

2

Tapping screw (small)

Air cleaning filter

2

Decide the mounting position with the customer as follows:

1. INDOOR UNIT

(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. 2). Also install the unit where the filter can be removed.

2. OUTDOOR UNIT

(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 you neighbors into consideration so that they are not disturbed

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 indoor and outdoor units 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. (4) Install the indoor unit on the wall where the height

from the floors more than 180 cm.

SELECTING THE MOUNTING POSITION

[Indoor unit piping direction]

The piping can be connected in the six directions indicated in (Fig. 1). When the piping is connected in direction 2, 3, 4 or 5, cut along the piping groove in the side of the front cover with a hacksaw.

INSTALLATION DIAGRAM OF INDOOR AND OUTDOOR UNITS

Fig. 2

[INDOOR UNIT]

Fig. 1

1 Rear outlet

2 Right

outlet

3 Bottom outlet

4 Left bottom

outlet

5 Left

outlet

[OUTDOOR UNIT]

(Rear)

FRONT PANEL REMOVAL AND INSTALLATION

Fig. 4

INTAKE GRILLE REMOVAL

(1) Open the intake grille. (2) Pull down the knob. (3) Lift the intake grille upward, until the axle at the top of the in-

take grille is removed.

INTAKE GRILLE INSTALLATION

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

FRONT PANEL REMOVAL

(1) Remove intake grille (Reference the intake grille removal.) (2) Remove wire cover. (3) Remove three screws. (4) The front panel is pulled to the front, raising the upper surface,

and a front panel is removed.

THE FRONT PANEL INSTALLATION

(1) Firstly, fit the lower part of the front panel, and insert top and

bottom hooks. (Three top sides, eight bottom sides) (2) Three screws is attached. (3) The wire cover is attached. (4) The intake grille is attached.

Front panel

Bearing

Mounting shaft

Intake grille

Knob

Front panel

Fig. 3

Drain hose

Outdoor unit bottom

Remote control unit holder

1

Drain pipe

1

POWER

Installation instruction on the back.

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 for increasing the voltage.

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 power cord. (6) Perform wiring work in accordance with standards so that the

air conditioner can be operated safely and correctly.

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

laws and regulations and electric company standards.

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 installat-

ion manuals to the customer.

CUSTOMER GUIDANCE

CAUTION

Install the front panel and intake grille securely. If installation is imperfect, the front panel or intake grille may fall off and cause injury.

Be sure that the top hole of the front panel is hooked securely to the hook of the base.

Bottom holes (six position)

Front panel

Indoor unit

Bottom hooks (two position)

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.

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

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

(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/cm

2

).

(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.

6 Left rear

outlet

CAUTION

(1) When the outdoor temperature is 0 °C or less, do not use the accessory

drain pipe and drain cap. If the drain pipe and drain cap are used, the drain water in the pipe may freeze in extremety cold weather. (Reverse cycle model only)

(2) 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).

Remote

control unit

Connection Cord

Conform to Type245 IEC57 1.5 mm

2

10 cm or more

60 cm or more

10 cm or more

30 cm or more

Tapping

screw

(small)

Remote

control unit

holder

6 cm or more

Wall hook bracket

5 cm or more

150 cm or more

(Wall cap)

180 cm or more

5 cm or more

30 cm or more

9 cm or more

54 cm

mc 23

Bottom hooks (six position)

Bottom holes (two position)

Top holes (two sides)

Top hole (center)

Top hook (center)

Front panel

Top hooks (two sides)

Indoor unit

Remote control unit holder

1

Seal A

Wire cover

Screws (Wire cover)

Screws (3 position)

SPLIT TYPE ROOM AIR CONDITIONER

INSTALLATION MANUAL

(PART NO. 9317265027-01)