Mitsubishi Electric MSZ-G09SV-E1, MUZ-G09SV-E1, MSZ-G09SV-WH, MSZ-G12SV-E1, MUZ-G12SV-E1 Service Manual

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Page 1

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SERVICE MANUAL

Wireless type Models

2000

No. OB245

MSZ-G09SV MSZ-G12SV -

(WH) ●

CONTENTS

1. PART NAMES AND FUNCTIONS······················2

2. SPECIFICATION·················································4

3. NOISE CRITERIA CURVES·······························6

4. OUTLINES AND DIMENSIONS·························7

5. WIRING DIAGRAM ············································9

6. REFRIGERANT SYSTEM DIAGRAM··············12

7. PERFORMANCE CURVES······························14

8. MICROPROCESSOR CONTROL ····················24

9. SERVICE FUNCTIONS ····································38

10. TROUBLESHOOTING······································40

11. DISASSEMBLY INSTRUCTIONS·····················58

12. PARTS LIST······················································62

13. OPTIONAL PARTS···········································66

MUZ-G09SV MUZ-G12SV -

E1E1

Page 2

PART NAMES AND FUNCTIONS

MSZ-G09SVMSZ-G12SV-

INDOOR UNIT

Air cleaning filter(white bellows type)

Deodorizing filter (gray sponge type)

Air filter

Front panel

Vertical vanes

Operation section

E1 E1

(When the grille is open)

Grille

Air inlet

to Breaker

Power supply cord

Remote control receiving section

Horizontal vane

Remote controller

Display section

Operation Indicator lamp

MUZ-G09SVMUZ-G12SV-

E1 E1

OUTDOOR UNIT

Receiving section

Emergency operation switch

Air inlet

Piping

Drain hose

Air outlet

Drain outlet

Page 3

Signal transmitting section

Operation display section

OPERATE /STOP

(ON /OFF)button

OPERATION SELECT button

FAN SPEED CONTROL button

ON-TIMER button

CLOCK SET button

HR. button

MIN. button

(TIME SET button)

TEMPERATURE buttons

VANE CONTROL button

OFF-TIMER button

RESET button

ON/OFF TOO

WARM

TOO

COOL

HR. MIN.

CLOCK

RESET

CLOCK

MODE

FAN

VANE

START

STOP

ECONO COOL button

ECONO COOL

I FEEL

COOL DRY HEAT

6 00 1

1 00

SWING

SWING button

MSZ-G09SVMSZ-G12SV-

E1 E1

REMOTE CONTROLLER

Page 4

Indoor model

Function

Power supply

Capacity Air flow(Hi) Dehumidification Power outlet Running current Power input Auxiliary heater Power factor Starting current Fan motor current Model Winding resistance(at20:) Dimensions WOHOD Weight Air direction Sound level (Hi) Fan speed (Hi) Fan speed regulator RT11(at25:) Thermistor RT12(at25:) RT13(at25:) Outdoor model Outdoor air flow Compressor motor current Fan motor current

Model Output Winding resistance(at20:) Model Winding resistance(at20:) Dimensions WOHOD Weight Sound level Fan speed Fan speed regulator Refrigerant filling capacity(R-22) Refrigerating oil (Model)

RT61(at100:)

Thermistor RT62(at0:) RT64(at70:)

K /h

R/h

A A

A(kW)

A A

dB(A)

rpm

k" k" k"

K /h

A A

dB(A)

rpm

kg cc

k" k" k"

Single phase

230V,50Hz

—

5.50

0.17

RC4V19WHT-BLK 292 BLK-RED 325 850O278O191

9 5

3 10 10 10

MUZ-G09SV -

1500

0.25

KHV-104FGK

900

U-V 2.14 U-W 2.14

V-W 2.14

RA6V18WHT-BLK 279 BLK-RED 198

710(+69)o540o255

28 45

600

0.75

270 (MS56)

13.4

33.2

7.9

Cooling

2.6 (1.3-3.1) 474

1.2

4.54

940 (440 - 1120)

950

4.12

2.77

Heating

3.6 (1.4-5.1) 504

—

5.50

1140 (430 - 1300)

1000

5.08

3.16

Electrical

data

Fan

motor

Special

remarks

Compressor

Electrical data

Fan

motor

Special

remarks

Coefficient of performance(C.O.P)

Capacity

MSZ-G09SV -

MSZ-G12SV -

Single phase

230V,50Hz

— 90

7.40

0.19

RC4V19WHT-BLK 292 BLK-RED 325 850O278O191

3 10 10 10

MUZ-G12SV -

1560

0.34

SHV-130FEA

1100

U-V 0.45 U-W 0.45

V-W 0.45

RA6V28WHT-BLK 201 BLK-RED 350

710(+69)o540o255

34 48

720

1.10

350 (MS56)

13.4

33.2

7.9

Cooling

3.5 (0.9-4.0) 588

1.6

6.20

1290 (290 - 1390)

1020

5.67

2.71

Heating

4.8 (0.9-6.2) 642

—

7.40

1540 (290 - 2090)

1100

6.87

3.12

SPECIFICATION

NOTE : Test conditions are based on ISO (Refrigerant piping length (one way): 5m)

Cooling : Indoor DB27: WB19: Heating : Indoor DB 20: WB -:

Outdoor DB35: WB24: Outdoor DB 7: WB 6:

Page 5

1.5+ 440V 250V 3.15A

93.5:5A 250V

MP24GA 12V 300"

ERZV10D471

S201DH1Y

JM1aN-ZTMP-DC12V

136:i3: 2A

100+ 420V

1500+ 420V

8A 8mH

70m" 5W

10" 15W

EM43261

QM15TG-9B

INDOOR UNIT

OUTDOOR UNIT

Item

Model

Item

Indoor fan capacitor Fuse Thermal fuse Vane motor Varistor Solid state relay Terminal block Contactor Indoor fan motor thermal fuse

Current transformer Power-facrtor capacitor Smoothing capacitor Outdoor fan capacitor Diode stack Fuse Fuse Expansion valve coil Reactor Current-detecting resistor Current-limiting resistor Solid state relay Terminal block Outdoor fan relay Current-limiting relay R.V. coil Noise filter Transistor module

MSZ-G09SV -

MSZ-G12SV -

MUZ-G12SV -

165+ 420V

2500+ 420V

15A 4.3mH 100m" 5W

10" 20W

EM43262

QM20TG-9B

MUZ-G09SV -

RR-18

1.8+ 440V S25VB80

250V 2A 250V 1A

LAM-MD12ME 12VDC

TLP3506

G5S-1

G4A-1A

LB8 220-240V AC

(CT61)

(C61) (C63) (C65)

(DS61, DS62)

(F801) (F901)

(LEV)

(L61)

(R61, R62)

(R64)

(SSR61)

(TB2) (X61) (X64)

(21S4)

(C11)

(F11)

(F12)

(MV1, MV2)

(NR11)

(SR141)

(TB)

(52C)

Specifications and rating conditions of main electric parts

Page 6

63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions, Cooling : DB 27: WB 19:

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

COOLING

FUNCTION

SPL(dB(A)) LINE

NOTCH

HEATING

Heating : DB 20: WB - :

63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions, Cooling : DB 35: WB 24:

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

COOLING

FUNCTION

SPL(dB(A)) LINE

NOTCH

HEATING

Heating : DB 7: WB 6:

NOISE CRITERIA CURVES

MSZ-G09SV-

MUZ-G09SV-

MSZ-G12SV-

NOTCH

FUNCTION

COOLING HEATING

Test conditions, Cooling : DB 27: WB 19:

Heating : DB 20: WB - :

APPROXIMATE

THRESHOLD OF

HEARING FOR CONTINUOUS

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

SPL(dB(A)) LINE

MUZ-G12SV-

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

NOTCH

FUNCTION

COOLING

HEATING

Test conditions, Cooling : DB 35: WB 24:

Heating : DB 7: WB 6:

SPL(dB(A)) LINE

APPROXIMATE

THRESHOLD OF HEARING FOR CONTINUOUS NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

Page 7

OUTLINES AND DIMENSIONS4

MSZ-G09SV-

INDOOR UNIT

Unit: mm

Installation plate

Indoor unit

818

82 169

231.5

271 4.5

278

Wireless remote controller

MSZ-G12SV-

INDOOR UNIT

160

850

17.5

16562956

Power supply cord Lead to right 1.0m Lead to left 0.3m

Installation plate

Air in

326 326

189

7 or more

100

Air out

67 78

116.581.5

Wall hole [65

Installation plate

Liquid line [6.35-0.5m Gas line [9.52-0.43m

{

Insulation [37 O.D.

Drain hose [16 (Connected part O.D.)

Insulation [28

169

2.5

[21 I.D.

278

160

Wireless remote controller

818

850

17.5

Indoor unit

16562956

Power supply cord Lead to right 1.0m Lead to left 0.3m

Air in

271 4.5

231.5

2.5

326 326

189

or more

100

Air out

67 78

Installation plate

Liquid line [6.35-0.5m Gas line [9.52-0.43m

{

Insulation [37 O.D.

Drain hose [16 (Connected part O.D.)

Insulation [28

116.581.5

Wall hole [65

[21 I.D.

Page 8

Liquid refrigerant pipe joint Refrigerant pipe (flared) [6.35

Service panel

Gas refrigerant pipe joint Refrigerant pipe (flared)

[9.52 (MUZ-G09SV -

)

Service port

Bolt pitch for installation

Handle

Air out

Air in

Drainage holes [28

4 holes 10o21

500 710

265

105

138

However, either the left/ right sides or back side should be unobstructed.

Air in

265

REQUIRED SPACE

Even if the right/ left sides or back side are vacant, the top has to be at least 100mm unobstructed.

Drainage holes [28

127

32.4

367

Drainage holes [28

32.5

255

285

320

155

43-

35-

540

270

350mm or more

100mm or more

Basically

unobstructed

[12.7 (MUZ-G12SV -

)

W A

W A W B

W A In case of poorly-ventilated place, the front or the back

has to be at least 200 mm unobstructed.

W B The wall may get dirty in case the air is discharged

toward it.

MUZ-G09SV- MUZ-G12SV-

OUTDOOR UNIT

E1E1

Unit: mm

Page 9

5 WIRING DIAGRAM

MSZ-G09SV- MODELS WIRING DIAGRAM MSZ-G12SV-

INDOOR UNIT

TO OUTDOOR UNIT CONNECTING

12V

POWER SUPPLY CORD ~/N 230V 50Hz

CIRCUIT BREAKER

SYMBOL C11 F11 F12 HIC1 MF MV1 MV2

BRN

230V~

WHT

BLU

GRN/YLW

RED

F12

BLU BLU

GRN/YLW

NAME INDOOR FAN CAPACITOR FUSE (3.15A) THERMAL FUSE (93:) DC/DC CONVERTER INDOOR FAN MOTOR(INNER FUSE) VANE MOTOR (HORIZONTAL) VANE MOTOR (VERTICAL)

1 2

SYMBOL NR11

RT11

RT12

RT13

MV1

CN201

MV2

2 1

LD101T

POWER MONITOR, RECEIVER P.C. BOARD

BLU

151

NAME VARISTOR ROOM TEMPERATURE THERMISTOR INDOOR COIL THERMISTOR (MAIN) INDOOR COIL THERMISTOR (SUB)

52C

ELECTRONIC CONTROL P.C. BOARD

HIC1

TRANS

F11

NR11

SR141

REMOTE CONTROLLER

SYMBOL SR141 TB 52C

4 3 2

CN112

121

C11

2 3

CN211

CN 111

NAME SOLID STATE RELAY TERMINAL BLOCK CONTACTOR

BLK GRY YLW BRN WHT RED

RT13 RT12

RT11

1 2 3

4 5 6

NOTE:1. About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing.

2. Use copper conductors only. (For field wiring)

3. Symbols below indicate. /: Terminal block, : Connector

Page 10

MUZ-G09SV- MODEL WIRING DIAGRAM

OUTDOOR UNIT

DSA61

NR61

NOISE FILTER P.C. BOARD

12V

230V ~

GRN/YLW

FROM INDOOR UNIT CONNECTING

SYMBOL CT61 C61 C63 C65 CY61~64 DSA61 DS61,62 F801 F901 LEV

NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.

2.Use copper conductors only. (For field wiring)

3. Symbols below indicate. /: Terminal block, : Connector

L62

3 2

TB2

LDE2

CY61

CY62

TAB66

RED WHT

BLU

GRN

TAB65

CN721

CY63

CT61

CY64

LDE1 GRN

21S4: heating ON

TAB68

BLU

LD64

RELAY

SSR61

P.C. BOARD

21S4 MF61

NAME CURRENT TRANSFORMER POWER-FACTOR CAPACITOR SMOOTHING CAPACITOR OUTDOOR FAN CAPACITOR CAPACITOR SURGE ABSORBER DIODE STACK FUSE (2A) FUSE (1A) EXPANSION VALVE COIL

CN725

TAB69

X64

CN771

SYMBOL L61 L62 MC MF61 NR61 RT61 RT62 RT64 R61 R64

DS61

ORN

WHT

BLU

R64

ORN

LD62

F901

C65

X61

6 5 4 3 2 1

BLK

RED

(

(-)

WHT

)

(

WHT

TAB

CN723

BLK

)

YLW

NAME REACTOR CMC COIL COMPRESSOR OUTDOOR FAN MOTOR(INNER PROTECTOR) VARISTOR DEFROST THERMISTOR DISCHARGE TEMPERATURE THERMISTOR FIN TEMPERATURE THERMISTOR CURRENT-DETECTING RESISTOR CURRENT-LIMITING RESISTOR

C61

BLK

L61

C63

YLW

CN722

DS62

RED

(~) (-)

BLK

RED

YLW

LEV

RT64

CN724

CN642

ELECTRONIC CONTROL P.C. BOARD

CN601

BLU

RED

RT61

SYMBOL SSR61 TB2 TR T801 X61 X64 21S4

(

(~)

RED

TAB63

BUN

BVN

T801

TAB64

R61

BWN EUN

CN641

RT62

BLK

WHT W

WHT

RED 3

REDBLK

NAME SOLID STATE RELAY TERMINAL BLOCK POWER TRANSISTOR MODULE TRANCEFORMER OUTDOOR FAN RELAY CURRENT-LIMITING RELAY R.V. COIL

F801

BUP EUPEVP BVP

BWP EWP

Page 11

MUZ-G12SV- MODEL WIRING DIAGRAM

OUTDOOR UNIT

DSA61

NR61

L62

NOISE FILTER P.C. BOARD

GRN/YLW

3 2 N

TB2

12V

230V ~

FROM INDOOR UNIT CONNECTING

SYMBOL CT61 C61 C63 C65 CY61~64 DSA61 DS61,62 F801 F901 LEV

CURRENT TRANSFORMER POWER-FACTOR CAPACITOR SMOOTHING CAPACITOR OUTDOOR FAN CAPACITOR CAPACITOR SURGE ABSORBER DIODE STACK FUSE (2A) FUSE (1A) EXPANSION VALVE COIL

LDE2

TAB66

RED

WHT

BLU

CY61

CY62

NAME

GRN

L63

TAB65

CN721

CY63

CT61

CY64

LDE1 GRN

LD64

SSR61

21S4 MF61

21S4: heating ON

CN725

TAB69

X64

TAB68

BLU

RELAY P.C BOARD

CN771

SYMBOL L61 L62, 63 MC MF61 NR61 RT61 RT62 RT64 R61, 62 R64

DS61

ORN

WHT

BLU

R64

ORN

LD62

F901

C65

X61

6 5 4 3 2 1

BLK

RED

( (

WHT

)

TAB

BLK

(

)

YLW

WHT

CN723

C61

BLK

L61

C63

YLW

CN722

BLU

DS62

RED

(~) (-)

BLK

RED

YLW

LEV

RT64

CN724

CN642

ELECTRONIC CONTROL P.C. BOARD

CN601

RED

RT61

SYMBOL SSR61 TB2 TR T801 X61 X64 21S4

(

(~)

RED

TAB64

CN641

RT62

R62

R61

BUN

BVN

BWN EUN

BLK

WHT

BLK

T801

WHT

TAB63

RED 3

RED

NAME SOLID STATE RELAY TERMINAL BLOCK POWER TRANSISTOR MODULE TRANCEFORMER OUTDOOR FAN RELAY CURRENT-LIMITING RELAY R.V. COIL

F801

BUP EUPEVP BVP

BWP

EWP

NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.

2.Use copper conductors only. (For field wiring)

3. Symbols below indicate. /: Terminal block, : Connector

Page 12

Indoor heat exchanger

Outdoor heat exchanger

Flared connection

Room temperature thermistor RT11

Indoor coil thermistor RT13(sub)

Defrost thermistor RT61

Discharge thermistor RT62

Flared connection

Stop valve (with strainar)

Stop valve (with service port)

Capillary tube [3.0✕[1.8✕400

Refrigerant flow in cooling

Compressor

Accumulator

Maffler

Muffler

4-way valve

Refrigerant flow in heating

Refrigerant pipe [9.52 (Option) (with heat insulator)

Refrigerant pipe (Option) [6.35 (with heat insulator)

Indoor coil thermistor RT12(main)

Expansion valve

R.V. coil heating ON cooling OFF

Indoor heat exchanger

Outdoor heat exchanger

Flared connection

Room temperature thermistor RT11

Indoor coil thermistor RT13(sub)

Defrost thermistor RT61

Discharge thermistor RT62

Flared connection

Stop valve (with strainar)

Stop valve (with service port)

Capillary tube [3.0✕[2.0✕200

Capillary tube [3.0✕[2.0✕300

Refrigerant flow in cooling

Compressor

Accumulator

Maffler

Muffler

4-way valve

Refrigerant flow in heating

Refrigerant pipe [12.7 (Option) (with heat insulator)

Refrigerant pipe (Option) [6.35 (with heat insulator)

Capillary tube

[3.0✕[2.0✕300

Indoor coil thermistor RT12(main)

Expansion valve

R.V. coil heating ON cooling OFF

REFRIGERANT SYSTEM DIAGRAM

MSZ-G09SV -

Unit : mm

MUZ-G09SV -

INDOOR UNIT

OUTDOOR UNIT

MSZ-G12SV -

INDOOR UNIT

MUZ-G12SV -

OUTDOOR UNIT

Unit : mm

Page 13

MAX. REFRIGERANT PIPING LENGTH

Refrigerant Piping Max. length A

w Height difference should be within 8m(MSZ-G09SV-

E1 )

/ 10m(MSZ-G12SV-

E1 )

regardless of which unit, indoor or outdoor position is high.

w Max. Height

difference 8m

(MSZ-G09SV-

E1 )

Indoor unit

Outdoor unit

w Max. Height

difference 10m

(MSZ-G12SV-

E1 )

Refrigerant piping

Max. length : m

12 15

Indoor unit

Gas 0.43

Liquid 0.5

Gas

9.52

12.7

Liquid

6.35

Outdoor unit

Piping size O.D : mm Length of connecting pipe : m

Model

MSZ-G09SV -

MSZ-G12SV -

Outdoor unit

precharged

750

1100

14m

270

60 60

30 30

0 0

11m 180 180

MSZ-G09SV - E1 MSZ-G12SV -

Model

Refrigerant piping length (one way)

Calculation : Xg=30g/mo(Refrigerant piping length(m) - 5)

90 90

9m 120 120

10m

150 150

12m

210 210

13m

240

15m

300

MAX. HEIGHT DIFFERENCE

ADDITIONAL REFRIGERANT CHARGE (R-22:g)

Page 14

PERFORMANCE CURVES7

MSZ-G09SV MSZ-G12SV -

The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions.

Since operating conditions vary according to the areas where these units are installed. The following information has been provided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.

(1) GUARANTEED VOLTAGE

Rated voltage : ±10% (207 ~ 253V),50Hz

(2) AIR FLOW

Air flow should be set at MAX.

(3) MAIN READINGS

(1) Indoor intake air wet-bulb temperature ::WB (2) Indoor outlet air wet-bulb temperature ::WB (3) Outdoor intake air dry-bulb temperature ::DB (4) Total input :W (5) Indoor intake air dry-bulb temperature ::DB (6) Outdoor intake air wet-bulb temperature ::WB (7) Total input :W

Indoor air wet/dry-bulb temperature difference on the left side of the chart on page 15 and 16 shows the difference between the indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your reference at service.

How to measure the indoor air wet-bulb/ dry-bulb temperature difference

1. Attach at least 2 sets of wet-and dry-bulb thermometers to the indoor air intake as shown in the figure, and at least 2 sets of wet-and dry-bulb thermometers to the indoor air outlet. The thermometers must be attached to the position where air speed is high.

2. Attach at least 2 sets of wet-and dry-bulb thermometers to the outdoor air intake. Cover the thermometers to prevent direct rays of the sun.

3. Check that the air filter is cleaned.

4. Open windows and doors of room.

5. Press the EMERGENCY OPERATION switch once (twice) to start the EMERGENCY COOL (HEAT) MODE.

6. When system stabilizes after more than 15 minutes, measure temperature and take an average temperature.

7. 10 minutes later, measure temperature again and check that the temperature does not change.

E1 E1

Cooling

}

Heating

}

INDOOR UNIT

OUTDOOR UNIT

Page 15

11.5

10.5

9.6

8.6

7.7

6.8

MSZ-G09SV- E1

11.6

10.6

9.6

8.7

7.8

6.9

MSZ-G12SV- E1

0 50 100 150(Hz)

0.0

0.5

1.0

1.5

Correction of Cooling capacity

Capacity correction factors

The operational frequency of compressor

Cooling capacity

MUZ-G09SV -

MUZ-G12SV -

Correction of Cooling capacity

1.5

1.0

MUZ-G09SV -

Correction of total input

1.5

1.0

0.5

Capacity correction factors

0.0

0 50 100 150(Hz)

The operational frequency of compressor

MUZ-G12SV -

Correction of total input

1.5

1.0

0.5

Capacity correction factors

0.0 0 50 100 150(Hz)

The operational frequency of compressor

0.5

Capacity correction factors

0.0

0 50 100 150

The operational frequency of compressor

Page 16

28.0

25.9

23.7

21.6

19.4

17.2

15.1

12.9

MSZ-G09SV- E1

29.3

27.1

24.8

22.6

20.3

18.1

15.8

13.5

MSZ-G12SV- E1

Heating capacity

0 50 100 150(Hz)

0.0

0.5

1.0

1.5

Correction of Heating capacity

Capacity correction factors

The operational frequency of compressor

Correction of total input

Capacity correction factors

The operational frequency of compressor

0 50 100 150(Hz)

0.0

0.5

1.0

1.5

NOTE:The above curves are for the heating operation without any frost.

MUZ-G09SV -

MUZ-G12SV -

Correction of Heating capacity

1.5

1.0

0.5

MUZ-G09SV -

MUZ-G12SV -

Correction of total input

1.5

1.0

0.5

Capacity correction factors

0.0 0 50 100 150(Hz)

The operational frequency of compressor

Capacity correction factors

0.0

0 50 100 150(Hz)

The operational frequency of compressor

Page 17

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

(MPa [Gauge])

(kgf/F [Gauge])

18 32

15 20

256030

70(%)

35(:)

0.2

0.3

0.4

0.5

0.6

0.7

79Hz

0.8

230V

15 20

25 60

70(%)

35(:)

79Hz

(MPa [Gauge])

(kgf/F [Gauge])

18 32

15 20

502560

30 70(%)

35(:)

0.2

0.3

0.4

0.5

0.6

0.7

85Hz

0.8

230V

15 20

25 60

70(%)

35(:)

85Hz

How to operate with fixed operational frequency of the compressor.

1. Press the EMERGENCY OPERATION switch on the front of the indoor unit , and select either the COOLmode or the HEAT mode before starting to operate the air conditioner.

2. The compressor starts up. The operational frequency of the compressor is 82Hz in the COOL mode and 58Hz in the HEAT mode.

3. The fan speed of the indoor unit is Hi.

4. This operation continues for 30minutes.

5. In order to release this operation, press the EMERGENCY OPERATION switch again, press any button on the remote

controller.

NOTE : The unit of pressure has been changed to MPa on the international system of units(SI unit system).

The conversion factor is: 1(MPa [Gauge]) =10.2(kgf/

[Gauge])

COOL operation

1 Both indoor and outdoor unit are under the same temperature/humidity condition.

Dry-bulb temperature

20 25 30

2 Air flow should be set at Hi. 3 Operational frequency : 79Hz

MUZ-G09SV -

Relative humidity(%)

50 60 70

MUZ-G09SV -

Outdoor low pressure

Ambient temperature(:) Ambient humidity(%)

Operational frequency : 85Hz

MUZ-G12SV -

Outdoor low pressure

Ambient temperature(:) Ambient humidity(%)

Outdoor unit current (A)

Ambient temperature(:) Ambient humidity(%)

MUZ-G12SV -

Outdoor unit current (A)

Ambient temperature(:) Ambient humidity(%)

Page 18

6.0

5.5

5.0

4.5

4.0

3.5

3.0 2 5 10 15 20 25

230V

58Hz

HEAT operation

6.0

5.5

5.0

4.5

4.0

3.5

3.0 2 5 10 15 20 25

230V

58Hz

Condition Indoor : Dry bulb temperature 20.0:

Wet bulb temperature 14.5:

Outdoor : Dry bulb temperature 2 7 15 20.0:

Wet bulb temperature 1 6 12 14.5:

MUZ-G09SV -

Outdoor unit current (A)

Ambient temperature(:)

MUZ-G12SV -

Outdoor unit current (A)

Ambient temperature(:)

Page 19

PERFORMANCE DATA COOL operation

MSZ-G09SV - MUZ-G09SV -

CAPACITY:2.6(KW)

INDOOR INDOOR

DB(;) WB(;)

21 18 3.06 1.53 0.50 752 2.93 1.46 0.50 790 2.81 1.40 0.50 827 2.70 1.35 0.50 865 21 20 3.19 1.21 0.38 790 3.06 1.16 0.38 837 2.96 1.13 0.38 855 2.86 1.09 0.38 893 22 18 3.06 1.65 0.54 752 2.93 1.58 0.54 790 2.81 1.52 0.54 827 2.70 1.46 0.54 865 22 20 3.19 1.34 0.42 790 3.06 1.28 0.42 837 2.96 1.24 0.42 855 2.86 1.20 0.42 893 22 22 3.32 0.99 0.30 818 3.20 0.96 0.30 870 3.12 0.94 0.30 893 2.99 0.90 0.30 931 23 18 3.06 1.77 0.58 752 2.93 1.70 0.58 790 2.81 1.63 0.58 827 2.70 1.57 0.58 865 23 20 3.19 1.47 0.46 790 3.06 1.41 0.46 837 2.96 1.36 0.46 855 2.86 1.32 0.46 893 23 22 3.32 1.13 0.34 818 3.20 1.09 0.34 870 3.12 1.06 0.34 893 2.99 1.02 0.34 931 24 18 3.06 1.89 0.62 752 2.93 1.81 0.62 790 2.81 1.74 0.62 827 2.70 1.68 0.62 865 24 20 3.19 1.59 0.50 790 3.06 1.53 0.50 837 2.96 1.48 0.50 855 2.86 1.43 0.50 893 24 22 3.32 1.26 0.38 818 3.20 1.22 0.38 870 3.12 1.19 0.38 893 2.99 1.14 0.38 931 24 24 3.48 0.91 0.26 855 3.35 0.87 0.26 902 3.28 0.85 0.26 931 3.17 0.82 0.26 978 25 18 3.06 2.02 0.66 752 2.93 1.93 0.66 790 2.81 1.85 0.66 827 2.70 1.78 0.66 865 25 20 3.19 1.72 0.54 790 3.06 1.65 0.54 837 2.96 1.60 0.54 855 2.86 1.54 0.54 893 25 22 3.32 1.39 0.42 818 3.20 1.34 0.42 870 3.12 1.31 0.42 893 2.99 1.26 0.42 931 25 24 3.48 1.05 0.30 855 3.35 1.01 0.30 902 3.28 0.98 0.30 931 3.17 0.95 0.30 978 26 18 3.06 2.14 0.70 752 2.93 2.05 0.70 790 2.81 1.97 0.70 827 2.70 1.89 0.70 865 26 20 3.19 1.85 0.58 790 3.06 1.77 0.58 837 2.96 1.72 0.58 855 2.86 1.66 0.58 893 26 22 3.32 1.52 0.46 818 3.20 1.47 0.46 870 3.12 1.44 0.46 893 2.99 1.38 0.46 931 26 24 3.48 1.18 0.34 855 3.35 1.14 0.34 902 3.28 1.11 0.34 931 3.17 1.08 0.34 978 26 26 3.59 0.79 0.22 902 3.48 0.77 0.22 949 3.43 0.76 0.22 978 3.33 0.73 0.22 1006 27 18 3.06 2.26 0.74 752 2.93 2.16 0.74 790 2.81 2.08 0.74 827 2.70 2.00 0.74 865 27 20 3.19 1.97 0.62 790 3.06 1.89 0.62 837 2.96 1.84 0.62 855 2.86 1.77 0.62 893 27 22 3.32 1.66 0.50 818 3.20 1.60 0.50 870 3.12 1.56 0.50 893 2.99 1.50 0.50 931 27 24 3.48 1.32 0.38 855 3.35 1.27 0.38 902 3.28 1.24 0.38 931 3.17 1.21 0.38 978 27 26 3.59 0.93 0.26 902 3.48 0.91 0.26 949 3.43 0.89 0.26 978 3.33 0.87 0.26 1006 28 18 3.06 2.38 0.78 752 2.93 2.28 0.78 790 2.81 2.19 0.78 827 2.70 2.11 0.78 865 28 20 3.19 2.10 0.66 790 3.06 2.02 0.66 837 2.96 1.96 0.66 855 2.86 1.89 0.66 893 28 22 3.32 1.79 0.54 818 3.20 1.73 0.54 870 3.12 1.68 0.54 893 2.99 1.61 0.54 931 28 24 3.48 1.46 0.42 855 3.35 1.41 0.42 902 3.28 1.38 0.42 931 3.17 1.33 0.42 978 28 26 3.59 1.08 0.30 902 3.48 1.05 0.30 949 3.43 1.03 0.30 978 3.33 1.00 0.30 1006 29 18 3.06 2.51 0.82 752 2.93 2.40 0.82 790 2.81 2.30 0.82 827 2.70 2.22 0.82 865 29 20 3.19 2.23 0.70 790 3.06 2.14 0.70 837 2.96 2.07 0.70 855 2.86 2.00 0.70 893 29 22 3.32 1.92 0.58 818 3.20 1.85 0.58 870 3.12 1.81 0.58 893 2.99 1.73 0.58 931 29 24 3.48 1.60 0.46 855 3.35 1.54 0.46 902 3.28 1.51 0.46 931 3.17 1.46 0.46 978 29 26 3.59 1.22 0.34 902 3.48 1.18 0.34 949 3.43 1.17 0.34 978 3.33 1.13 0.34 1006 30 18 3.06 2.63 0.86 752 2.93 2.52 0.86 790 2.81 2.41 0.86 827 2.70 2.33 0.86 865 30 20 3.19 2.36 0.74 790 3.06 2.26 0.74 837 2.96 2.19 0.74 855 2.86 2.12 0.74 893 30 22 3.32 2.06 0.62 818 3.20 1.98 0.62 870 3.12 1.93 0.62 893 2.99 1.85 0.62 931 30 24 3.48 1.74 0.50 855 3.35 1.68 0.50 902 3.28 1.64 0.50 931 3.17 1.59 0.50 978 30 26 3.59 1.36 0.38 902 3.48 1.32 0.38 949 3.43 1.30 0.38 978 3.33 1.26 0.38 1006 31 18 3.06 2.75 0.90 752 2.93 2.63 0.90 790 2.81 2.53 0.90 827 2.70 2.43 0.90 865 31 20 3.19 2.48 0.78 790 3.06 2.38 0.78 837 2.96 2.31 0.78 855 2.86 2.23 0.78 893 31 22 3.32 2.19 0.66 818 3.20 2.11 0.66 870 3.12 2.06 0.66 893 2.99 1.97 0.66 931 31 24 3.48 1.88 0.54 855 3.35 1.81 0.54 902 3.28 1.77 0.54 931 3.17 1.71 0.54 978 31 26 3.59 1.51 0.42 902 3.48 1.46 0.42 949 3.43 1.44 0.42 978 3.33 1.40 0.42 1006 32 18 3.06 2.87 0.94 752 2.93 2.75 0.94 790 2.81 2.64 0.94 827 2.70 2.54 0.94 865 32 20 3.19 2.61 0.82 790 3.06 2.51 0.82 837 2.96 2.43 0.82 855 2.86 2.35 0.82 893 32 22 3.32 2.32 0.70 818 3.20 2.24 0.70 870 3.12 2.18 0.70 893 2.99 2.09 0.70 931 32 24 3.48 2.02 0.58 855 3.35 1.95 0.58 902 3.28 1.90 0.58 931 3.17 1.84 0.58 978 32 26 3.59 1.65 0.46 902 3.48 1.60 0.46 949 3.43 1.58 0.46 978 3.33 1.53 0.46 1006

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

INPUT:940(W)SHF:0.68

21 25 27 30

E1E1

OUTDOOR DB(;)

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

Page 20

CAPACITY:2.6(KW)

INPUT:940(W)SHF:0.68

OUTDOOR DB(;)

INDOOR INDOOR

35 40 43 46

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 2.55 1.27 0.50 921 2.34 1.17 0.50 978 2.25 1.12 0.50 996 2.16 1.08 0.50 1015 21 20 2.68 1.02 0.38 959 2.50 0.95 0.38 1006 2.41 0.91 0.38 1034 2.31 0.88 0.38 1062 22 18 2.55 1.38 0.54 921 2.34 1.26 0.54 978 2.25 1.21 0.54 996 2.16 1.17 0.54 1015 22 20 2.68 1.12 0.42 959 2.50 1.05 0.42 1006 2.41 1.01 0.42 1034 2.31 0.97 0.42 1062 22 22 2.83 0.85 0.30 996 2.65 0.80 0.30 1053 2.56 0.77 0.30 1072 2.47 0.74 0.30 1090 23 18 2.55 1.48 0.58 921 2.34 1.36 0.58 978 2.25 1.30 0.58 996 2.16 1.25 0.58 1015 23 20 2.68 1.23 0.46 959 2.50 1.15 0.46 1006 2.41 1.11 0.46 1034 2.31 1.06 0.46 1062 23 22 2.83 0.96 0.34 996 2.65 0.90 0.34 1053

2.56 0.87 0.34 1072

2.47 0.84 0.34 1090 24 18 2.55 1.58 0.62 921 2.34 1.45 0.62 978 2.25 1.39 0.62 996 2.16 1.34 0.62 1015 24 20 2.68 1.34 0.50 959 2.50 1.25 0.50 1006 2.41 1.20 0.50 1034 2.31 1.16 0.50 1062 24 22 2.83 1.08 0.38 996 2.65 1.01 0.38 1053 2.56 0.97 0.38 1072 2.47 0.94 0.38 1090 24 24 2.99 0.78 0.26 1034 2.81 0.73 0.26 1081 2.73 0.71 0.26 1105 2.65 0.69 0.26 1128 25 18 2.55 1.68 0.66 921 2.34 1.54 0.66 978 2.25 1.48 0.66 996 2.16 1.42 0.66 1015 25 20 2.68 1.45 0.54 959 2.50 1.35 0.54 1006 2.41 1.30 0.54 1034 2.31 1.25 0.54 1062 25 22 2.83 1.19 0.42 996 2.65 1.11 0.42 1053 2.56 1.08 0.42 1072 2.47 1.04 0.42 1090 25 24 2.99 0.90 0.30 1034 2.81 0.84 0.30 1081 2.73 0.82 0.30 1105 2.65 0.80 0.30 1128 26 18 2.55 1.78 0.70 921 2.34 1.64 0.70 978 2.25 1.57 0.70 996 2.16 1.51 0.70 1015 26 20 2.68 1.55 0.58 959 2.50 1.45 0.58 1006 2.41 1.39 0.58 1034 2.31 1.34 0.58 1062 26 22 2.83 1.30 0.46 996 2.65 1.22 0.46 1053 2.56 1.18 0.46 1072 2.47 1.14 0.46 1090 26 24 2.99 1.02 0.34 1034 2.81 0.95 0.34 1081 2.73 0.93 0.34 1105 2.65 0.90 0.34 1128 26 26 3.15 0.69 0.22 1072 2.96 0.65 0.22 1119 2.87 0.63 0.22 1142 2.78 0.61 0.22 1166 27 18 2.55 1.89 0.74 921 2.34 1.73 0.74 978 2.25 1.66 0.74 996 2.16 1.60 0.74 1015 27 20 2.68 1.66 0.62 959 2.50 1.55 0.62 1006 2.41 1.49 0.62 1034 2.31 1.43 0.62 1062 27 22 2.83 1.42 0.50 996 2.65 1.33 0.50 1053 2.56 1.28 0.50 1072 2.47 1.24 0.50 1090

27 24 2.99 1.14 0.38 1034 2.81 1.07 0.38 1081 2.73 1.04 0.38 1105 2.65 1.01 0.38 1128 27 26 3.15 0.82 0.26 1072 2.96 0.77 0.26 1119 2.87 0.75 0.26 1142 2.78 0.72 0.26 1166 28 18 2.55 1.99 0.78 921 2.34 1.83 0.78 978 2.25 1.75 0.78 996 2.16 1.68 0.78 1015 28 20 2.68 1.77 0.66 959 2.50 1.65 0.66 1006 2.41 1.59 0.66 1034 2.31 1.53 0.66 1062 28 22 2.83 1.53 0.54 996 2.65 1.43 0.54 1053 2.56 1.38 0.54 1072 2.47 1.33 0.54 1090 28 24 2.99 1.26 0.42 1034 2.81 1.18 0.42 1081 2.73 1.15 0.42 1105 2.65 1.11 0.42 1128 28 26 3.15 0.94 0.30 1072 2.96 0.89 0.30 1119 2.87 0.86 0.30 1142 2.78 0.83 0.30 1166 29 18 2.55 2.09 0.82 921 2.34 1.92 0.82 978 2.25 1.84 0.82 996 2.16 1.77 0.82 1015 29 20 2.68 1.87 0.70 959 2.50 1.75 0.70 1006 2.41 1.68 0.70 1034 2.31 1.62 0.70 1062 29 22 2.83 1.64 0.58 996 2.65 1.54 0.58 1053 2.56 1.49 0.58 1072 2.47 1.43 0.58 1090 29 24 2.99 1.38 0.46 1034 2.81 1.29 0.46 1081 2.73 1.26 0.46 1105 2.65 1.22 0.46 1128 29 26 3.15 1.07 0.34 1072 2.96 1.01 0.34 1119 2.87 0.98 0.34 1142 2.78 0.95 0.34 1166 30 18 2.55 2.19 0.86 921 2.34 2.01 0.86 978 2.25 1.93 0.86 996 2.16 1.86 0.86 1015 30 20 2.68 1.98 0.74 959 2.50 1.85 0.74 1006 2.41 1.78 0.74 1034 2.31 1.71 0.74 1062 30 22 2.83 1.76 0.62 996 2.65 1.64 0.62 1053 2.56 1.59 0.62 1072 2.47 1.53 0.62 1090 30 24 2.99 1.50 0.50 1034 2.81 1.40 0.50 1081 2.73 1.37 0.50 1105 2.65 1.33 0.50 1128 30 26 3.15 1.20 0.38 1072 2.96 1.13 0.38 1119 2.87 1.09 0.38 1142 2.78 1.06 0.38 1166 31 18 2.55 2.29 0.90 921 2.34 2.11 0.90 978 2.25 2.02 0.90 996 2.16 1.94 0.90 1015 31 20 2.68 2.09 0.78 959 2.50 1.95 0.78 1006 2.41 1.88 0.78 1034 2.31 1.80 0.78 1062 31 22 2.83 1.87 0.66 996 2.65 1.75 0.66 1053 2.56 1.69 0.66 1072 2.47 1.63 0.66 1090 31 24 2.99 1.61 0.54 1034 2.81 1.52 0.54 1081 2.73 1.47 0.54 1105 2.65 1.43 0.54 1128 31 26 3.15 1.32 0.42 1072 2.96 1.24 0.42 1119 2.87 1.21 0.42 1142 2.78 1.17 0.42 1166 32 18 2.55 2.40 0.94 921 2.34 2.20 0.94 978 2.25 2.11 0.94 996 2.16 2.03 0.94 1015 32 20 2.68 2.20 0.82 959 2.50 2.05 0.82 1006 2.41 1.97 0.82 1034 2.31 1.90 0.82 1062 32 22 2.83 1.98 0.70 996 2.65 1.86 0.70 1053 2.56 1.79 0.70 1072 2.47 1.73 0.70 1090 32 24 2.99 1.73 0.58 1034 2.81 1.63 0.58 1081 2.73 1.58 0.58 1105 2.65 1.54 0.58 1128 32 26 3.15 1.45 0.46 1072 2.96 1.36 0.46 1119 2.87 1.32 0.46 1142 2.78 1.28 0.46 1166

PERFORMANCE DATA COOL operation

MSZ-G09SV - MUZ-G09SV -

E1E1

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

Page 21

PERFORMANCE DATA COOL operation

MSZ-G12SV - MUZ-G12SV -

CAPACITY:3.5(KW)

INDOOR INDOOR

DB(;) WB(;)

21 18 4.11 2.02 0.49 1032 3.94 1.93 0.49 1084 3.78 1.85 0.49 1135 3.64 1.78 0.49 1187 21 20 4.29 1.59 0.37 1084 4.11 1.52 0.37 1148 3.99 1.48 0.37 1174 3.85 1.42 0.37 1226 22 18 4.11 2.18 0.53 1032 3.94 2.09 0.53 1084 3.78 2.00 0.53 1135 3.64 1.93 0.53 1187 22 20 4.29 1.76 0.41 1084 4.11 1.69 0.41 1148 3.99 1.64 0.41 1174 3.85 1.58 0.41 1226 22 22 4.46 1.29 0.29 1122 4.31 1.25 0.29 1193 4.20 1.22 0.29 1226 4.03 1.17 0.29 1277 23 18 4.11 2.34 0.57 1032 3.94 2.24 0.57 1084 3.78 2.15 0.57 1135 3.64 2.07 0.57 1187 23 20 4.29 1.93 0.45 1084 4.11 1.85 0.45 1148 3.99 1.80 0.45 1174 3.85 1.73 0.45 1226 23 22 4.46 1.47 0.33 1122 4.31 1.42 0.33 1193 4.20 1.39 0.33 1226 4.03 1.33 0.33 1277 24 18 4.11 2.51 0.61 1032 3.94 2.40 0.61 1084 3.78 2.31 0.61 1135 3.64 2.22 0.61 1187 24 20 4.29 2.10 0.49 1084 4.11 2.02 0.49 1148 3.99 1.96 0.49 1174 3.85 1.89 0.49 1226 24 22 4.46 1.65 0.37 1122 4.31 1.59 0.37 1193 4.20 1.55 0.37 1226 4.03 1.49 0.37 1277 24 24 4.69 1.17 0.25 1174 4.52 1.13 0.25 1238 4.41 1.10 0.25 1277 4.27 1.07 0.25 1342 25 18 4.11 2.67 0.65 1032 3.94 2.56 0.65 1084 3.78 2.46 0.65 1135 3.64 2.37 0.65 1187 25 20 4.29 2.27 0.53 1084 4.11 2.18 0.53 1148 3.99 2.11 0.53 1174 3.85 2.04 0.53 1226 25 22 4.46 1.83 0.41 1122 4.31 1.77 0.41 1193 4.20 1.72 0.41 1226 4.03 1.65 0.41 1277 25 24 4.69 1.36 0.29 1174 4.52 1.31 0.29 1238 4.41 1.28 0.29 1277 4.27 1.24 0.29 1342 26 18 4.11 2.84 0.69 1032 3.94 2.72 0.69 1084 3.78 2.61 0.69 1135 3.64 2.51 0.69 1187 26 20 4.29 2.44 0.57 1084 4.11 2.34 0.57 1148 3.99 2.27 0.57 1174 3.85 2.19 0.57 1226 26 22 4.46 2.01 0.45 1122 4.31 1.94 0.45 1193 4.20 1.89 0.45 1226 4.03 1.81 0.45 1277 26 24 4.69 1.55 0.33 1174 4.52 1.49 0.33 1238 4.41 1.46 0.33 1277 4.27 1.41 0.33 1342 26 26 4.83 1.01 0.21 1238 4.69 0.98 0.21 1303 4.62 0.97 0.21 1342 4.48 0.94 0.21 1380 27 18 4.11 3.00 0.73 1032 3.94 2.87 0.73 1084 3.78 2.76 0.73 1135 3.64 2.66 0.73 1187 27 20 4.29 2.62 0.61 1084 4.11 2.51 0.61 1148 3.99 2.43 0.61 1174 3.85 2.35 0.61 1226 27 22 4.46 2.19 0.49 1122 4.31 2.11 0.49 1193 4.20 2.06 0.49 1226 4.03 1.97 0.49 1277 27 24 4.69 1.74 0.37 1174 4.52 1.67 0.37 1238 4.41 1.63 0.37 1277 4.27 1.58 0.37 1342 27 26 4.83 1.21 0.25 1238 4.69 1.17 0.25 1303 4.62 1.16 0.25 1342 4.48 1.12 0.25 1380 28 18 4.11 3.17 0.77 1032 3.94 3.03 0.77 1084 3.78 2.91 0.77 1135 3.64 2.80 0.77 1187 28 20 4.29 2.79 0.65 1084 4.11 2.67 0.65 1148 3.99 2.59 0.65 1174 3.85 2.50 0.65 1226 28 22 4.46 2.37 0.53 1122 4.31 2.28 0.53 1193 4.20 2.23 0.53 1226 4.03 2.13 0.53 1277 28 24 4.69 1.92 0.41 1174 4.52 1.85 0.41 1238 4.41 1.81 0.41 1277 4.27 1.75 0.41 1342 28 26 4.83 1.40 0.29 1238 4.69 1.36 0.29 1303 4.62 1.34 0.29 1342 4.48 1.30 0.29 1380 29 18 4.11 3.33 0.81 1032 3.94 3.19 0.81 1084 3.78 3.06 0.81 1135 3.64 2.95 0.81 1187 29 20 4.29 2.96 0.69 1084 4.11 2.84 0.69 1148 3.99 2.75 0.69 1174 3.85 2.66 0.69 1226 29 22 4.46 2.54 0.57 1122 4.31 2.45 0.57 1193 4.20 2.39 0.57 1226 4.03 2.29 0.57 1277 29 24 4.69 2.11 0.45 1174 4.52 2.03 0.45 1238 4.41 1.98 0.45 1277 4.27 1.92 0.45 1342 29 26 4.83 1.59 0.33 1238 4.69 1.55 0.33 1303 4.62 1.52 0.33 1342 4.48 1.48 0.33 1380 30 18 4.11 3.50 0.85 1032 3.94 3.35 0.85 1084 3.78 3.21 0.85 1135 3.64 3.09 0.85 1187 30 20 4.29 3.13 0.73 1084 4.11 3.00 0.73 1148 3.99 2.91 0.73 1174 3.85 2.81 0.73 1226 30 22 4.46 2.72 0.61 1122 4.31 2.63 0.61 1193 4.20 2.56 0.61 1226 4.03 2.46 0.61 1277 30 24 4.69 2.30 0.49 1174 4.52 2.21 0.49 1238 4.41 2.16 0.49 1277 4.27 2.09 0.49 1342 30 26 4.83 1.79 0.37 1238 4.69 1.74 0.37 1303 4.62 1.71 0.37 1342 4.48 1.66 0.37 1380 31 18 4.11 3.66 0.89 1032 3.94 3.50 0.89 1084 3.78 3.36 0.89 1135 3.64 3.24 0.89 1187 31 20 4.29 3.30 0.77 1084 4.11 3.17 0.77 1148 3.99 3.07 0.77 1174 3.85 2.96 0.77 1226 31 22 4.46 2.90 0.65 1122 4.31 2.80 0.65 1193 4.20 2.73 0.65 1226 4.03 2.62 0.65 1277 31 24 4.69 2.49 0.53 1174 4.52 2.39 0.53 1238 4.41 2.34 0.53 1277 4.27 2.26 0.53 1342 31 26 4.83 1.98 0.41 1238 4.69 1.92 0.41 1303 4.62 1.89 0.41 1342 4.48 1.84 0.41 1380 32 18 4.11 3.82 0.93 1032 3.94 3.66 0.93 1084 3.78 3.52 0.93 1135 3.64 3.39 0.93 1187 32 20 4.29 3.47 0.81 1084 4.11 3.33 0.81 1148 3.99 3.23 0.81 1174 3.85 3.12 0.81 1226 32 22 4.46 3.08 0.69 1122 4.31 2.97 0.69 1193 4.20 2.90 0.69 1226 4.03 2.78 0.69 1277 32 24 4.69 2.67 0.57 1174 4.52 2.57 0.57 1238 4.41 2.51 0.57 1277 4.27 2.43 0.57 1342 32 26 4.83 2.17 0.45 1238 4.69 2.11 0.45 1303 4.62 2.08 0.45 1342 4.48 2.02 0.45 1380

SHF:0.67

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

INPUT:1290(W)

21 25 27 30

E1E1

OUTDOOR DB(;)

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

Page 22

CAPACITY:3.5(KW)

INPUT:1290(W)

SHF:0.67

OUTDOOR DB(;)

INDOOR INDOOR

35 40 43 46

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT 21 18 3.43 1.68 0.49 1264 3.15 1.54 0.49 1342 3.03 1.48 0.49 1367 2.91 1.42 0.49 1393 21 20 3.61 1.33 0.37 1316 3.36 1.24 0.37 1380 3.24 1.20 0.37 1419 3.12 1.15 0.37 1458 22 18 3.43 1.82 0.53 1264 3.15 1.67 0.53 1342 3.03 1.60 0.53 1367 2.91 1.54 0.53 1393 22 20 3.61 1.48 0.41 1316 3.36 1.38 0.41 1380 3.24 1.33 0.41 1419 3.12 1.28 0.41 1458 22 22 3.82 1.11 0.29 1367 3.57 1.04 0.29 1445 3.45 1.00 0.29 1471 3.33 0.96 0.29 1496 23 18 3.43 1.96 0.57 1264 3.15 1.80 0.57 1342 3.03 1.73 0.57 1367 2.91 1.66 0.57 1393 23 20 3.61 1.62 0.45 1316 3.36 1.51 0.45 1380 3.24 1.46 0.45 1419 3.12 1.40 0.45 1458 23 22 3.82 1.26 0.33 1367 3.57 1.18 0.33 1445

3.45 1.14 0.33 1471

3.33 1.10 0.33 1496 24 18 3.43 2.09 0.61 1264 3.15 1.92 0.61 1342 3.03 1.85 0.61 1367 2.91 1.77 0.61 1393 24 20 3.61 1.77 0.49 1316 3.36 1.65 0.49 1380 3.24 1.59 0.49 1419 3.12 1.53 0.49 1458 24 22 3.82 1.41 0.37 1367 3.57 1.32 0.37 1445 3.45 1.28 0.37 1471 3.33 1.23 0.37 1496 24 24 4.03 1.01 0.25 1419 3.78 0.95 0.25 1484 3.68 0.92 0.25 1516 3.57 0.89 0.25 1548 25 18 3.43 2.23 0.65 1264 3.15 2.05 0.65 1342 3.03 1.97 0.65 1367 2.91 1.89 0.65 1393 25 20 3.61 1.91 0.53 1316 3.36 1.78 0.53 1380 3.24 1.72 0.53 1419 3.12 1.65 0.53 1458 25 22 3.82 1.56 0.41 1367 3.57 1.46 0.41 1445 3.45 1.41 0.41 1471 3.33 1.36 0.41 1496 25 24 4.03 1.17 0.29 1419 3.78 1.10 0.29 1484 3.68 1.07 0.29 1516 3.57 1.04 0.29 1548 26 18 3.43 2.37 0.69 1264 3.15 2.17 0.69 1342 3.03 2.09 0.69 1367 2.91 2.00 0.69 1393 26 20 3.61 2.05 0.57 1316 3.36 1.92 0.57 1380 3.24 1.85 0.57 1419 3.12 1.78 0.57 1458 26 22 3.82 1.72 0.45 1367 3.57 1.61 0.45 1445 3.45 1.55 0.45 1471 3.33 1.50 0.45 1496 26 24 4.03 1.33 0.33 1419 3.78 1.25 0.33 1484 3.68 1.21 0.33 1516 3.57 1.18 0.33 1548 26 26 4.24 0.89 0.21 1471 3.99 0.84 0.21 1535 3.87 0.81 0.21 1567 3.75 0.79 0.21 1600 27 18 3.43 2.50 0.73 1264 3.15 2.30 0.73 1342 3.03 2.21 0.73 1367 2.91 2.12 0.73 1393 27 20 3.61 2.20 0.61 1316 3.36 2.05 0.61 1380 3.24 1.97 0.61 1419 3.12 1.90 0.61 1458 27 22 3.82 1.87 0.49 1367 3.57 1.75 0.49 1445 3.45 1.69 0.49 1471 3.33 1.63 0.49 1496 27 24 4.03 1.49 0.37 1419 3.78 1.40 0.37 1484 3.68 1.36 0.37 1516 3.57 1.32 0.37 1548 27 26 4.24 1.06 0.25 1471 3.99 1.00 0.25 1535 3.87 0.97 0.25 1567 3.75 0.94 0.25 1600 28 18 3.43 2.64 0.77 1264 3.15 2.43 0.77 1342 3.03 2.33 0.77 1367 2.91 2.24 0.77 1393 28 20 3.61 2.34 0.65 1316 3.36 2.18 0.65 1380 3.24 2.10 0.65 1419 3.12 2.02 0.65 1458 28 22 3.82 2.02 0.53 1367 3.57 1.89 0.53 1445 3.45 1.83 0.53 1471 3.33 1.76 0.53 1496 28 24 4.03 1.65 0.41 1419 3.78 1.55 0.41 1484 3.68 1.51 0.41 1516 3.57 1.46 0.41 1548 28 26 4.24 1.23 0.29 1471 3.99 1.16 0.29 1535 3.87 1.12 0.29 1567 3.75 1.09 0.29 1600 29 18 3.43 2.78 0.81 1264 3.15 2.55 0.81 1342 3.03 2.45 0.81 1367 2.91 2.35 0.81 1393 29 20 3.61 2.49 0.69 1316 3.36 2.32 0.69 1380 3.24 2.23 0.69 1419 3.12 2.15 0.69 1458 29 22 3.82 2.17 0.57 1367 3.57 2.03 0.57 1445 3.45 1.97 0.57 1471 3.33 1.90 0.57 1496 29 24 4.03 1.81 0.45 1419 3.78 1.70 0.45 1484 3.68 1.65 0.45 1516 3.57 1.61 0.45 1548 29 26 4.24 1.40 0.33 1471 3.99 1.32 0.33 1535 3.87 1.28 0.33 1567 3.75 1.24 0.33 1600 30 18 3.43 2.92 0.85 1264 3.15 2.68 0.85 1342 3.03 2.57 0.85 1367 2.91 2.47 0.85 1393 30 20 3.61 2.63 0.73 1316 3.36 2.45 0.73 1380 3.24 2.36 0.73 1419 3.12 2.27 0.73 1458 30 22 3.82 2.33 0.61 1367 3.57 2.18 0.61 1445 3.45 2.10 0.61 1471 3.33 2.03 0.61 1496 30 24 4.03 1.97 0.49 1419 3.78 1.85 0.49 1484 3.68 1.80 0.49 1516 3.57 1.75 0.49 1548 30 26 4.24 1.57 0.37 1471 3.99 1.48 0.37 1535 3.87 1.43 0.37 1567 3.75 1.39 0.37 1600 31 18 3.43 3.05 0.89 1264 3.15 2.80 0.89 1342 3.03 2.69 0.89 1367 2.91 2.59 0.89 1393 31 20 3.61 2.78 0.77 1316 3.36 2.59 0.77 1380 3.24 2.49 0.77 1419 3.12 2.40 0.77 1458 31 22 3.82 2.48 0.65 1367 3.57 2.32 0.65 1445 3.45 2.24 0.65 1471 3.33 2.16 0.65 1496 31 24 4.03 2.13 0.53 1419 3.78 2.00 0.53 1484 3.68 1.95 0.53 1516 3.57 1.89 0.53 1548 31 26 4.24 1.74 0.41 1471 3.99 1.64 0.41 1535 3.87 1.59 0.41 1567 3.75 1.54 0.41 1600 32 18 3.43 3.19 0.93 1264 3.15 2.93 0.93 1342 3.03 2.82 0.93 1367 2.91 2.70 0.93 1393 32 20 3.61 2.92 0.81 1316 3.36 2.72 0.81 1380 3.24 2.62 0.81 1419 3.12 2.52 0.81 1458 32 22 3.82 2.63 0.69 1367 3.57 2.46 0.69 1445 3.45 2.38 0.69 1471 3.33 2.29 0.69 1496 32 24 4.03 2.29 0.57 1419 3.78 2.15 0.57 1484 3.68 2.09 0.57 1516 3.57 2.03 0.57 1548 32 26 4.24 1.91 0.45 1471 3.99 1.80 0.45 1535 3.87 1.74 0.45 1567 3.75 1.69 0.45 1600

PERFORMANCE DATA COOL operation

MSZ-G12SV - MUZ-G12SV -

E1E1

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

Page 23

CAPACITY:3.6(KW)

INPUT:1140(W)

OUTDOOR DB(;)

INDOOR

-10 -5 0 5 10 15 20

DB(;)

Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT 15 2.27 741 2.74 889 3.20 1003 3.67 1083 4.14 1151 4.57 1186 5.04 1208 21 2.16 798 2.59 946 3.06 1049 3.49 1129 3.96 1186 4.39 1220 4.84 1265 26 1.94 855 2.41 1003 2.84 1106 3.31 1186 3.78 1243 4.21 1277 4.68 1311

PERFORMANCE DATA

CAPACITY:4.8(KW)

INPUT:1540(W)

OUTDOOR DB(;)

INDOOR

-10 -5 0 5 10 15 20

DB(;)

Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT 15 3.02 1001 3.65 1201 4.27 1355 4.90 1463 5.52 1555 6.10 1602 6.72 1632 21 2.88 1078 3.46 1278 4.08 1417 4.66 1525 5.28 1602 5.86 1648 6.46 1709

26 2.59 1155 3.22 1355 3.79 1494 4.42 1602 5.04 1679 5.62 1725 6.24 1771

HEAT operation

MSZ-G09SV - MUZ-G09SV -

E1E1

MSZ-G12SV - MUZ-G12SV -

NOTE Q :Total capacity (kW) INPUT :Total power input (W)

E1E1

Page 24

MICROPROCESSOR CONTROL8

Signal transmitting section

Operation display section

OPERATE /STOP

(ON /OFF)button

OPERATION SELECT button

FAN SPEED CONTROL button

ON-TIMER button

CLOCK SET button

HR. button

MIN. button

(TIME SET button)

TEMPERATURE buttons

VANE CONTROL button

OFF-TIMER button

RESET button

ON/OFF TOO

WARM

TOO

COOL

HR. MIN.

CLOCK

RESET

CLOCK

MODE

FAN

VANE

START

STOP

ECONO COOL button

ECONO COOL

I FEEL

COOL DRY HEAT

6 00 1

1 00

SWING

SWING button

lighting not lighting

Approx. 2 : or more

Difference betweeen set temperature and room temperature

Approx. 2 : or less

This shows that the air conditioner is operating to reach the target temperature. Please wait until the target temperature is obtained.

This shows that the room temperature is approaching the target temperature.

Operation stateIndication

Operation

Indicator

Mode

COOL mode of

"I FEEL CONTROL"

DRY mode of

"I FEEL CONTROL"

HEAT mode of

"I FEEL CONTROL"

Initial room temperature

25: or more

23: to 25:

less than 23:

MSZ-G09SVMSZ-G12SV-

E1 E1

WIRELESS REMOTE CONTROLLER

INDOOR UNIT DISPLAY SECTION

Operation Indicator lamp

The operation indicator at the right side of the indoor unit indicates the operation state.

Once the operation mode are set, the same operation mode can be repeated by simply turning the OPERATE/STOP(ON/OFF) button ON. Indoor unit receives the signal with a beep tone. When the system turns off, 3-minute time delay will operate to protect system from overload and compressor will not restart for 3 minutes.

8-1. “I FEEL CONTROL” ( ) OPERATION

1. Press OPERATE/STOP(ON/OFF) button on the remote controller. OPERATION INDICATOR lamp of the indoor unit will turn on with a beep tone.

2. Select “I FEEL CONTROL”( ) mode with the OPERATION SELECT button.

3. The operation mode is determined by the room temperature at start-up of the operation.

● Once the mode is fixed, the mode does not change by

room temperature afterwards.

● Under the ON-TIMER ( ) operation, mode is deter-

mined according to the room temperature at set time the operation starts.

● When the system is stopped on the remote controller, and

restarted within 2 hours in “I FEEL CONTROL” ( ) mode, the system operates in previous mode automatically regardless of the room temperature.

Example

Previous operation

COOL mode of “I FEEL CONTROL” or

Restart

COOL mode of “I FEEL CONTROL”

COOL mode

When the system is restarted after 2 hours and more, the

operation mode is determined by the room temperature at start-up of the operation.

Example

Restart

COOL or DRY or HEAT mode of “I

Previous operation

COOL mode of “I FEEL CONTROL” or COOL mode

FEEL CONTROL” that determined by room temperature at start-up of the operation.

Page 25

Model

COOL mode of

"I FEEL CONTROL"

DRY mode of

"I FEEL CONTROL"

HEAT mode of

"I FEEL CONTROL"

Initial room temperature Initial set temperature

26:

26: or more

26: to 26:

less than 23:

23: to 25:

24:

Initial room temperature minus 2:

❈1

4. The initial set temperature is decided by the initial room temperature.

❈1 When the system is restarted with the remote controller, the system operates with the previous set temperature regard-

less of the room temperature at restart. The set temperature is calculated by the previous set temperature.

5. TEMPERATURE buttons In “I FEEL CONTROL” (h)mode, set temperature is decided by the microprocessor based on the room temperature.

In addition, set temperature can be controlled by TOO WARM or TOO COOL buttons when you feel too cool or too warm. Each time the TOO WARM or TOO COOL button is speed, the indoor unit receives the signal emits a beep tone.

● Fuzzy control

When the TOO COOL or TOO WARM button is pressed, the microprocessor changes the set temperature, considering the room temperature, the frequency of pressing TOO COOL or TOO WARM button and the user’s preference to heat or cool. So this is called “Fuzzy control”, and works only in “I FEEL CONTROL” mode. In DRY mode of “I FEEL CONTROL”, the set temperature doesn’t change.

▼ TOO COOL… To raise the set temperature 1 ~ 2 degrees (:)

▲ TOO WARM … To lower the set temperature 1 ~ 2 degrees (:)

— Cool mode of “I FEEL CONTROL” —

1. Indoor fan speed control

Indoor fan operates continuously at the set speed by FAN SPEED CONTROLbutton regardless of the thermostat’s OFF-ON. In AUTO the fan speed is as follows.

Room temperature minus set temperature: 2 degrees or moreover································· Hi Room temperature minus set temperature: Between 1 and 2 degrees ··························· Me Room temperature minus set temperature: less than 1 degree········································ Lo

2. Coil frost prevention

1 Temperature control

The operational frequency of the compressor is controlled based on the temperature of the indoor coil thermistor(RT12).

Temperature of indoor coil thermistor:RT12

approx. 8°C or above

approx. 6°C to 8°C approx. 3°C to 6°C

approx. 3°C or below

• The indoor fan maintains the actual speed of the moment. 2 Time control

When the three conditions as follows have been satisfied for 1 hour and 45 minutes, compressor stops for 3 minutes.

The indoor fan operates at set speed.

a. Compressor has been continuously operating. b. Indoor fan speed is Lo or Me

c. Room temperature is below 26:. When compressor stops, the accumulated time is cancelled. When compressor restarts, time counting starts from the beginning.

Time counting also stops temporarily when the indoor fan speed becomes Hi or the room temperature exceeds 26:.

However, when two of the above conditions(b and c.) are satisfied again. Time accumulation is resumed.

Difference between room temperature and set tem-

Initial temperature difference

Fan speed

perature during operation.

1 deg.

Operation frequency

normal

fixed

lower at the rate of 3Hz/min.

lower at the rate of 6Hz/min Compressor is turned OFF for 5 minutes when left temperature continues for 5 minutes or more.

2 deg.

1.7 deg.

4 deg.

Page 26

—DRY mode of “I FEEL CONTROL”—

Released

Cold Air Prevention

18:RT12 22:

Fan speed Set speed

VLo or stop

The system for dry operation uses the same refrigerant circuit as the cooling circuit. The compressor and the indoor fan are controlled by the room temperature. By such controls, indoor flow amounts will be reduced in order to lower humidity without much room temperature decrease.

1. The operation of the compressor and indoor fan/ outdoor fan

Compressor operates by temperature control and time control.

1 Set temperature is controlled to fall 2°C as initial set temperature. 2 Indoor fan and outdoor fan operate in the same cycle as the compressor. 3 Operational frequency control of compressor is fixed 30Hz.

NOTE ● Coil frost prevention during DRY mode of “I FEEL CONTROL”

The operation is same as coil frost prevention during COOL mode of “I FEEL CONTROL” .

3. Coil frost prevention

The operational frequency of the compressor is controlled based on the temperature of the indoor coil thermistor (RT12).

Temperature of indoor coil thermistor:RT12

approx. 8°C or above

approx. 6°C to 8°C approx. 3°C to 6°C

Operation frequency

normal

fixed

lower at the rate of 3Hz/min.

lower at the rate of 6Hz/min.

approx. 3°C or below

Compressor is turned OFF for 5 minutes when left temperature continues for 5 minutes or more.

The indoor fan maintains the actual speed of the moment. However, it changes to Lo speed when the compressor stops.

— HEAT mode of “I FEEL CONTROL” —

1. Indoor fan speed control

(1) Indoor fan operates at the set speed by FAN SPEED CONTROLbutton.

In Auto the fan speed is as follows. Set temperature minus room temperature: 2 degrees or more

Set temperature minus room temperature:

Initial temperature difference

············································ Hi

Between 1 and 2 degrees ····························

Fan speed

Set temperature minus room temperature: less than 1 degree················································· Lo

Difference between room temperature and set temperature during operation

2 deg.

1 deg.

1.7 deg.

4 deg.

(2) Cold air prevention control

1 When the compressor is not operating,

(1) if the temperature of indoor coil thermistor RT12 is 18°C or less, the fan stops. (2) if the temperature of indoor coil thermistor RT12 is more than 18°C, the fan operates at VLo.

2 When the compressor is operating,

(1) if the temperature of RT12 is 22°C or more, the fan operates at set speed. (2) if the temperature of RT12 is less than 22°C and

(1) if the temperature of room temperature thermistor RT11 is 15°C or less, the fan stops. (2) if the temperature of room temperature thermistor RT11 is more than 15°C, the fan operates at VLo.

Indoor coil thermistor RT12 temperature

NOTE : If the temperature of RT12 reads from 18: to 22: at the air conditioner starting and also after defrosting, this

control works.

Page 27

(3) Warm air control.

less than 2 minutes Lo 2 minutes to 4 minutes Me more than 4 minutes Hi

Compressor

OFF

Fan VLo

Set speed

When the following any condition of 1(a. ~ d.) and the condition of 2 are satisfied at the same time, warm air control works.

1 a.) when the operation mode has been changed to HEAT mode

b.) when cold air prevention has been released c.) when defrosting has been finished d.) when the compressor starts in HEAT mode

2 When the temperature of indoor coil thermistor RT12 is less than 37°C.

When warm air control works, the fan speed changes as follows to blow out warm air gradually.

Gradation of fan speed in initial

The upper limit of the fan speed in MANUAL is the set speed. The upper limit of the fan speed in AUTO is the speed decided by indoor fan speed control. When the temperature of RT12 has been 37°C or more, or when the set speed has been changed, this control is released and the fan speed is the set speed.

(4) Flow soft control

When the thermostat (compressor) is off, the indoor fan operates as follows.

NOTE : When the thermostat(compressor) turns on, the fan will operate

at set speed. But until cold air prevention and warm air control is released, the fan speed follow them.

2. High pressure protection

In HEAT mode and manually-operated HEAT mode, the indoor coil thermistor detects the temperature at the indoor heat exchanger and controls the compressor rotational frequency to prevent the condensing pressure from increasing excessively.

3. Overload starting

When the room temperature thermistor reads 18°C or above, the compressor runs with its maximum frequency regulated for 3 minutes after the start-up.

4. Defrosting

(1) Starting conditions of defrosting

a) The defrost thermistor attached to the outdoor heat exchanger read -3°C or below. b) The cumulative operation time of the compressor has reached any of the set values: 35, 40, 45, 50, 55, 60, 65, 70,

75, 80, 85, 90, 95, 100, 105 minutes.

c) More than 5 minutes have passed since the start-up of the compressor.

When the above three conditions, a), b), and c), are satisfied, the defrosting starts.

w Set value of compressor operation time(hereinafter referred to as defrost interval)

The first defrost interval is 32 minutes long, and the second 35 minutes long.The third and subsequent intervals are set to be longer, and less frequent, depending on defrosting time. The third and subsequent defrost intervals follow any of the three patterns …5 or 10 minutes longer, the same, or 5 or 10 minutes shorter compared with the previous defrost interval … with the longest 115 minutes and the shortest 30 minutes.

(2) Releasing conditions of defrosting

Defrosting is released when any of the following condition is satisfied: a) The defrost thermistor reads 13°C or above. b) Defrosting time has exceeded 10 minutes. c) Some other mode than HEATmode is set during defrosting.

Page 28

Time chart of defrost in HEAT mode (reverse type)

normal

Indoor fan

Compressor normal

Outdoor fan motor

R.V. coil

(21S4)

OFF

105Hz (MSZ-G09SV) 125Hz (MSZ-G12SV)

horizontal

normal

Vertical vane

normal

VLo (temperature of indoor coil thermistor > 18:)

seconds

seconds1second

5 seconds

second

STOP

seconds

MAX Hz

10 15 20 25 30 35

Set temperature

Initial room temperature

Set temperature and initial room temperature in dry mode

8-2. COOL ( ) OPERATION

(1) Press OPERATE/STOP(ON/OFF) button. OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone. (2) Select COOL mode with the OPERATION SELECT button. (3) Press TEMPERATURE buttons (TOO WARM or TOO COOL button)to select the desired temperature.

The setting range is 16 ~ 31°C

✻ Indoor fan continues to operate regardless of thermostat’s OFF-ON ✻ Coil frost prevention is same as COOL mode of “I FEEL CONTROL”

8-3. DRY ( ) OPERATION

(1) Press OPERATE/STOP(ON/OFF) button.

OPERATION INDICATOR lamp of the indoor unit turns on with a

beep tone. (2) Select DRY mode with the OPERATION SELECT button. (3) The microprocessor reads the room temperature and determines

the set temperature. Set temperature is as shown on the right chart.

(4) DRY operation will not function when the room temperature is

13°C or below. (5) In DRY operation the fan speed Hi or Me notch is lower than that

in COOL operation, but the fan speed Lo notch is same in DRY

and COOL operation.

Page 29

8-4. HEAT ( ) OPERATION

(1) Press OPERATE/STOP(ON/OFF) button.

OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone. (2) Select HEATmode with the OPERATION SELECT button. (3) Press TEMPERATURE buttons (TOO WARM or TOO COOL button) to select the desired temperature.

The setting range is 16 ~ 31°C. (4) Indoor fan speed control, high pressure protection, defrosting, 4-way valve control are the same as HEAT mode of “I

FEEL CONTROL”

8-5. FAN MOTOR CONTROL

1. Rotational frequency feedback control The indoor fan motor is equipped with a rotational frequency sensor, and outputs signal to the microprocessor to feedback the rotational frequency. Comparing the current rotational frequency with the target rotational frequency (Hi,Me,Lo) the microprocessor controls SR141 and adjusts fan motor electric current to make the current rotational frequency close to the target rotational frequency. With this control, when the fan speed is switched, the rotational frequency changes smoothly.

2. Fan motor lock-up protection When the rotational frequency feedback signal is not output for 12 seconds, (or when the microprocessor cannot detect the signal for 12 seconds) the fan motor is regarded locked-up. Then the electric current to the fan motor is shut off. 3 minutes later, the electric current is applied to the fan motor again. During the fan motor lock-up, the OPERATION INDICATOR lamp flashes on and off to show the fan motor abnormality. (See page 42.)

8-6. AUTO VANE OPERATION

(1) Vane motor drive

These models are equipped with a stepping motor for the horizontal vane. The rotating direction, speed, and angle of the motor are controlled by pulse signals (approx. 12V) transmitted from indoor microprocessor.

(2) The horizontal vane angle and mode changes as follows by pressing the VANE CONTROL ( ) button.

VANE

(3) Positioning

The vane is once pressed to the vane stopper below to confirm the standard position and then set to the desired angle. Confirming of standard position is performed in case of follows. (a) When the OPERATE/STOP(ON/OFF) button is pressed. (b) When the vane control is changed AUTO to MANUAL. (c) When the SWING is finished. (d) When the test run starts. (e) When the power supply turns ON.

(4) VANE AUTO ( ) mode

In VANE AUTO mode, the microprocessor automatically determines the vane angle and operation to make the optimum room-temperature distribution.

(1) In COOL and DRY operation

(2) In HEAT operation

Vane angle is fixed to Angle 1.

Vane angle is fixed to Angle 4.

Page 30

(5) Dew prevention

COOL and DRY

HEAT

About 100-

About 150-

Horizontal AIR FLOW blowing range

During COOL or DRY operation with the vane angle at Angle 4 or 5 when the compressor cumulative operation time exceeds 1 hour, the vane angle automatically changes to Angle 1 for dew prevention.

(6) SWING MODE ( )

By pressing the SWING button ( ),vane swings horizontally. The remote controller displays “ ”.

SWING

SWING MODE is cancelled when any of the following operations are performed.

● The unit is turned off.

The vertical vane will return to their positions just before the swing operation was started.

● The operation mode(AUTO, COOL, DRY or HEAT)is changed.

The vertical vane will return to their positions just before the swing operation was started.

● The SWING button ( ) is pressed.

SWING

The vertical vane stop at the position when the button is pressed.

(7) Horizontal AIR FLOW ( )

The auto vane angle changes as follows by pressing the SWING button ( ).

● Press the SWING button ( ).

SWING

The vertical vane begin moving.

● When the vane move to the desired position, press the SWING button ( )again.

SWING

The vane stop moving.

NOTE

If the SWING button ( ) is not pressed again within 30 seconds in COOL or DRY mode or within 1 minute in HEAT

SWING

mode after the vane start moving, the vane will automatically return to their original positions.

(8) Cold air prevention in HEATmode.

When any of the following conditions occurs in HEAT mode, the auto vane angle changes to Angle 1 automatically to prevent cold air blowing on users.

① Compressor is not operating. ➁ Defrosting is performed. ➂ Indoor coil thermistor RT12 reads 24: or below. ➃ Indoor coil thermistor RT12 temperature is raising from 24°C or below, but it does not exceed 28:.

Page 31

(8) ECONO COOL ( ) operation (ECONOmical operation)

When the ECONO COOL button is pressed in COOL mode, set temperature is automatically set 2°C higher than that in COOL mode. Also the horizontal vane swings in various cycle according to the temperature of indoor heat exchanger(RT12). SWING operation makes you feel cooler than set temperature. So, even though the set temperature is higher than that in COOL mode, the air conditioner can keep comfort. As a result, energy can be saved.

NOTE : ECONO COOL operation not work in COOL mode of “I FEEL CONTROL”. SWING operation

In swing operation of ECONO COOL operation air flow is initially blew out upward(levelly). According to the temperature of indoor coil thermistor RT12 at starting of this operation, next downward blow time is decided. Then when the downward blow has been finished, next upward blow time is decided. For initial 10 min. the swing operation is performed in table G~H for quick cooling(but G : RT 12 is 24 Also, after 10 min. when the difference of set temperature and room temperature is more than 2 degrees, the swing operation is performed in table D~H for more cooling(but D: RT12 is 20: or less). The air conditioner repeats the swing operation in various cycle as follows.

: or less).

Temperature of indoor

coil thermistor RT12

A B

C D

15°C or less 15°C to 17°C

17°C to 18°C

18°C to 20°C

20°C to 21°C 21°C to 22°C 22°C to 24°C

more than 24°C

Downward blow time

(sec.)

2 5 8

11 14 17 20 23

Upward(level) blow time

(sec.)

23 20 17 14 11

5 2

8-7. TIMER OPERATION

1. How to set the timer

(1) Press OPERATE/STOP(ON/OFF) button to start the air conditioner. (2) Check that the current time is set correctly. NOTE : Timer operation will not work without setting the current time. Initially “AM0:00” blinks at the current time display

of TIME MONITOR, so set the current time correctly with CLOCK SET button.

(3) Press ON or OFF TIMER buttons to select the operation.

“ ” button... AUTO START operation (ON timer) “ ” button... AUTO STOP operation (OFF timer)

(4) Press HR. and MIN. button to set the timer. Time setting is 10-minute units.

HR. and MIN. button will work when “ ” or “ ” mark is flashing. These marks disappear in 1 minute. After setting the ON timer, check that OPERATION INDICATOR lamp of the indoor unit lights.

NOTE1 : Be sure to place the remote controller at the position where its signal can reach the air conditioner even during

TIMER operation, or the set time may deviate within the range of about 10 minutes.

NOTE2 : Reset the timer in the following cases, or the set time may deviate and other malfunctions may occur.

● A power failure occurs.

● The circuit breaker functions.

2. Cancel

TIMER setting can be cancelled with the ON or OFF TIMER buttons. (“ ” or “ ”) To cancel the ON timer, press the “ ” button.

To cancel the OFF timer, press the “ ” button. TIMER is cancelled and the display of set time disappears.

Page 32

PROGRAM TIMER

EMERGENCY OPERATION switch

Press once <Cool>

Press again <Heat> Press once again <Stop>

lighting not lighting

OPERATION INDICATOR lamp

● The OFF timer and ON timer can be used in combination.

● “ ” and “ ” display shows the order of the OFF timer and ON timer operation.

(Example 1) The current time is 8:00 PM.

The unit turns off at 11:00 PM, and on at 6:00 AM.

NOTE : TIMER setting will be cancelled by power failure or breaker functioning.

(Example 2) The current time is 11:00 AM.

The unit turns on at 5:00 PM, and off at 9:00 PM.

8-8. EMERGENCY-TEST OPERATION

When the remote controller is missing, has failed or the batteries run down, use the EMERGENCY OPERATION switch on the front of the indoor unit. The unit will start and the OPERATION INDICATOR lamp will light. The first 30 minutes of operation is the test run operation. This operation is for servicing. The indoor fan speed runs at Hi notch and the system is in continuous operation. (The thermostat is ON) After 30 minutes of test run operation the system shifts to EMERGENCY COOL, HEAT MODE with a set temperature of 24°C. The fan speed shifts to Me notch. This operation continues until the EMERGENCY OPERATION switch button is pressed once or twice or the unit receives any signal from the remote controller. In case of latter normal operation will start. The coil frost prevention works even in this operation, and defrosting too. In the test run or emergency operation, the horizontal vane operates in VANE AUTO mode.

NOTE : Do not press the EMERGENCY OPERATION switch during normal operation.

Page 33

8-9. Operational frequency control of outdoor unit

1Hr

Time: T

Maximum frequency

Frequency

Rating or under-rating frequency

1. Outline The operational frequency is decided by following: First, set the target operational frequency based on the difference between the room temperature and the set temperature. Second, regulate the target operational frequency by discharge temperature protection, high pressure protection, electric current protection and overload protection and also by the maximum/minimum frequency.

(1) Maximum/minimum frequency in each operation mode.

COOL

Applied

model

MSZ-G09SV- E1 MSZ-G12SV- E1

w The maximum frequency in COOL mode varies according to operation hours, as shown below. w However, it is under 79Hz(MSZ-G09SV)/ 85Hz(MSZ-G12SV) when indoor fan speed set to MANUALLo or AUTO Lo.

(2) Frequency change speed During increasing frequency

minimum frequency

45 15

rating frequency

79 85

maximum frequency

105

minimum frequency

45 15

HEAT

rating frequency

95 105 96 125 30

maximum frequency

DRY

Operational frequency MUZ-G09SV- E1 MUZ-G12SV- E1

10Hz~14Hz 0.5 sec./Hz 15Hz~79Hz 10 sec./Hz

80Hz~150Hz 0.5 sec./Hz

During decreasing frequency

Operational frequency MUZ-G09SV- E1 MUZ-G12SV- E1

10Hz~42Hz 1 sec./Hz

43Hz~150Hz 0.5 sec./Hz

Page 34

8-10. Electronic expansion valve control (LEV control)

(1) Outline of LEV control

The LEV basic control is comprised of setting LEV opening degree to the standard opening degrees set for each operational frequency of the compressor. However, when any change in indoor/outdoor temperatures or other factors cause air conditioning load fluctuation, the LEV control also works to correct LEV opening degree based on discharge temperature (Shell temperature) of the compressor, developing the unit’s performance.

Control range from min. 33 pulse to max. 350 pulse. Actuating speed LEV opens 40 pulse/sec. and close 90 pulse/sec. Opening degree adjustment LEV opening degree is always adjusted in opening direction.

standard

specification

Unit OFF LEV remains at max. opening degree (reaches max. opening

Remote controller ON LEV is positioned. (first full-closed at zero pulse and then

During 2 to 13 minutes after compressor starts Opening degree is adjusted according to standard opening

(When reducing the opening degree, LEV is once overclosed, and then adjusted to the proper degree by opening.

degree approx. 15 minutes after compressor stops)

positioned.)

degree. (Standard opening degree is set for each rotational frequency of compressor)

More than 13 minutes have passed since compressor start-up

general operation

Thermostat OFF LEV starts to open every 3 pulse/sec.

Thermostat ON LEV is controlled in the same way as that is after the com-

Defrosting in HEAT mode LEV is adjusted to open 350 pulse.

LEV opening degree is corrected to get target discharge temperature of compressor. (For discharge temperature lower than target temperature, LEV is corrected in closing direction.) (For discharge temperature higher than target temperature, LEV is corrected in opening direction.) wIt may take more than 30 minutes to reach target temperature, depending on operating conditions.

from the same opening degree as that when the Unit turned OFF (and becomes full-opened after approx. 15 minutes.)

pressor has started up.

Page 35

(2) Time chart

OFF Time

Time

The operational frequency

of the compressor

Commanded to open

Standard opening degree

Opening degree is corrected according to discharge temperature.

Positioning

Air conditioner ON

Air conditioner OFF (thermostat off)

LEV opening degree

13 min.

06 05 04 03 02

LEV opening degree

A(target discharge temperature)

30 50 70

The operational frequency of the compressor

90 110 130

(Hz)

(3) Control data

(a) Reference value of target discharge temperature

(Cooling :/ Heating :)

MSZ-G09SV- E1 MSZ-G12SV- E1

58/49B63/58C69/66D74/71E74/76F74/78 57/48 60/57 67/66 75/71

In COOL mode, the two indoor coil thermistor (one main and one sub) sense temperature ununiformity (super heat) at the heat exchanger, And when temperature difference have developed, the indoor coil thermistors adjust LEV opening to get approximate 10 degrees lower temperature than the target temperature in the table above, thus diminishing super heat.

(b) Reference value of LEV standard degree opening

MSZ-G09SV- E1 MSZ-G12SV- E1

(COOL/ HEAT pulse)

150/7002170/9003180/11004190/14005200/15006200/160

160/90 190/120 200/140 220/160

78/76

240/180

78/78

255/200

Page 36

OFF

Outdoor fan

Compressor

5 sec. 15 sec.

ON OFF

Compressor

Outdoor fan

4-way valve

ON OFF

<COOL>

5 seconds

<HEAT>

5 seconds

8-11. Outdoor fan motor control

The AC fan motor turns ON/OFF, interlocking with the compressor. [ON] The AC fan motor turns on 5 seconds before the compressor starts up. [OFF] The AC fan motor turns off 15 seconds after the compressor stops running.

8-12. 4-way valve control

COOL&DRY mode

. . . . . . . . . . . . . . . . . . . . . . During normal COOL operation the 4-way valve is OFF.

HEAT mode

. . . . . . . . . . . . . . . . . . . . . . The 4-way valve is ON as soon as thermostat turns ON.

. . . . . . . . . . . . . . . . . . . . . . The 4-way valve is OFF 15 minutes after the thermostat turns OFF.

w The 4-way valve isn’t ON before the compressor starts up.

. . . . . . .

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

OFF(Voltage is not supplied from relay P.C. board to R.V. Coil.) ON(Voltage is supplied from relay P.C. board to R.V. Coil.)

Page 37

8-13. Indoor fan motor control

Microprocessor

Controller board

230V AC

Solid state relay output

Rotational frequency

every 100Hz pulse output

AC motor

actuator

(Solid state relay)

AC motor

rotational frequency sensor part

output input

The detected rotational frequency of the fan motor is feed backed to the microprocessor and then the microprocessor works to keep the rotational frequency at a fixed value against load fluctuation.

(1) Circuit block diagram

(2) Control system

The microprocessor outputs pulse every 100Hz (every 50Hz in half wave). (Fan speed varies according to the time span between a Zero-cross point on the commercial wave and a pulse out put point.)

The microprocessor detects rotational frequency of AC fan motor, using Hall element in AC fan motor.

The microproces-

sor drives solid state relay on relay P.C. board.

The microprocessor adjusts rotational frequen-

cy.

If feed backed pulses are not detected for 12

seconds, fan motor becomes abnormal and indoor OPERATION INDICATOR lamp flashes to show abnormality.

Controlled voltage is applied to AC fan motor.

Page 38

9 SERVICE FUNCTIONS

Jumper wire Change point

Deforst finish temperature changes from 13: to 15:.

MSZ-G09SV MSZ-G12SV -

9-1. CHANGE IN DEFROST SETTING

<JS> When the JS wire of the outdoor electronic control P.C. board is cut, the defrost temperature will be changed.

(Refer to page 55.)

9-2. TIMER SHORT MODE

For service, set time can be shortened by short circuit of JPS on and the electronic control P.C. board. The time will be shortened as follows. 3-minute delay : 3-minute ➔ 3-second. AUTO START : 1 hour ➔ 1-minute AUTO STOP : 1 hour ➔ 1-minute

Short the connector during the timer mode.

}

9-3. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION

A maximum of 4 indoor units with wireless remote controllers can be used in a room. In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be modified according to the indoor unit number.

How to modify the remote controller P.C. board

Remove batteries before modification. The board has a print as shown below;

NOTE : For remodelling, take out the batteries at first.

After finish remodelling, put back the batteries then push the RESET-button.

The P.C. board has the print “J1” and “J2”. Jumper wires are mounted to each “J1” and “J2”.Cut “J1” and “J2” according to the number of indoor unit as shown in Table 1. After modification, push the RESET. button near the MIN-button on the remote controller.

Table1.

1 unit operation

No.1 unit

No modification No.2 unit No.3 unit No.4 unit

NOTE : At power supply failure or installation, indoor unit deletes the memory about remote controller. When

the power supply is turned on and indoor unit receives the first signals from the remote controller, the remote controller number is designated as the indoor unit number. Therefore at and after the second time indoor unit accepts the remote controller of the initial setting number. At setting - error, turn the power supply off to cancel the individual operation and then turn the power supply on to restart the setting.

2 unit operation Same as at left

Cut J1

3 unit operation

Same as at left Same as at left

Cut J2

4 unit operation

Same as at left Same as at left Same as at left

Cut both J1 and J2

Page 39

9-4. AUTO RESTART FUNCTION

C11

52C

CN201

CN112

CN121SW

CN111

IC101

CN211

CN151

JR07

When the indoor unit is controlled with the remote controller, the operation mode, the set temperature, and the fan speed are memorized by the indoor electronic control P.C.board. The “AUTO RESTART FUNCTION” sets to work the moment the power has restored after power failure. Then, the unit will restart automatically. However if the unit is operated in “I FEEL CONTROL.” mode before power failure, the operation is not memorized. In “I FEEL CONTROL.” mode, the operation is decided by the initial room temperature.

How to set “AUTO RESTART FUNCTION”

1Turn off the main power for the unit. 2Pull out the indoor electronic control P.C. board and the display P.C.board.(See page 58.) 3Cut the RESISTOR JR07 on the indoor electronic control P.C. board.

Operation

1If the main power (230V AC) has been cut, the operation settings remain. 2After the power is restored, the unit restarts automatically according to the memory.(However, it takes at least 3 minutes

for the compressor to start running.)

NOTE:

•The operation settings are memorized when 10 seconds have passed after the indoor unit was operated with the remote

controller.

•If the main power is turned off or a power failure occurs while AUTO START/STOP timer is active, the timer setting is

cancelled.

•If the unit has been off with the remote controller before power failure, the auto restart function does not work as the

power button of the remote controller is off.

•To prevent breaker off due to the rush of starting current, systematize other home appliances not to turn on at the same

time.

•When some air conditioners are connected to the same supply system, if they are operated before power failure, the

starting current of all the compressors may flow simultaneously at restart. Therefore, the special counter-measures are required to prevent the main voltage-drop or the rush of the starting current by adding to the system that allows the units to start one by one.

Page 40

TROUBLESHOOTING10

MSZ-G09SV MSZ-G12SV -

11-1. Cautions on troubleshooting

1. Before troubleshooting, check the following:

1) Check the power supply voltage.

2) Check the indoor/outdoor connecting wire for mis-wiring.

2. Take care the following during servicing.

1) Before servicing the air conditioner, be sure to first turn off the remote controller to stop the unit, and then after con-

firming the horizontal vane is closed, turn off the breaker and / or disconnect the power plug.

2) Be sure to unplug the power cord before removing the front panel, the cabinet, the top panel, and the electronic con-

trol P.C. board.

3) When removing the electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the

components.

4) When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires.

3. Troubleshooting procedure

1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality.

To make sure, check how many times the abnormality indication is flashing on and off before starting service work.

2) Before servicing check that the connector and terminal are connected properly.

3) If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and the

components for bursting and discoloration.

4) When troubleshooting, refer to the flow chart on page 41 and the check table on page 42 and 43.

4. How to replace batteries

Weak batteries may cause the remote controller malfunction. In this case, the remote controller can not be repaired only by the battery replacement. To operate the remote controller normally, replace the batteries in the following order. This remote controller has the RESET button. After refilling new batteries, press the RESET button with tip end of ball point pen or the like, and then use the remote controller.

Page 41

10-2. Troubleshooting procedure

Start

Indoor unit operates. Outdoor unit doesn't operate.

Indoor unit does'nt receive the signal from remote controller.

OPERATION INDICATOR lamp on the indoor unit is flashing on and off.

Outdoor unit operates in only Test Run operation.

Outdoor unit does'nt operate even in Test Run operation.

Indoor unit operates, when the EMERGENCY OPERATION switch is pressed.

Indoor unit doesn't operate, when the EMERGENCY OPERATION switch is pressed.

Check room temperature thermistor. Refer to "Test point diagram and voltage" on page 54.

Refr to A "How to check inverter/ compressor" on page 47.

Refer to H "Check of remote controller and receiver P.C. board" on page 49.

Refer to I "Check of indoor electronic control P.C. board" on page 50.

1-time flash Cause: Indoor/ Outdoor unit

• Mis-wiring

• Serial signal error

2-time flash Cause: Indoor unit

• Trouble of room temper ature/ indoor coil thermistor

3-time flash

Cause:

Indoor unit

• Trouble of

indoor fan

motor

5-time flash Cause: Outdoor unit

• Outdoor power system abnormality

6-time flash Cause: Outdoor unit

• Trouble of thermistor in outdoor unit

7-time flash Cause: Outdoor unit

• Trouble of outdoor control system

Refer to 10-2.2 "Checking mis-wiring and serial signal errer" on page 44.

Check room temperature thermistor and indoor coil thermistor. Refer to "Test point diagram and voltage" on page 54.

Refer to G "Check of indoor fan motor" on page 49.

Refer to A "How to check inverter/ compressor" on page 47.

Refer to J "Check of outdoor thermistors" on page 50.

Replace the outdoor electronic control P.C. board.

The following procedure facilitates identifying defective points. Details of OPERATION INDICATOR lamp flashing can be located on page 42 and 43.

Page 42

1. Troubleshooting check table (Indoor unit troubleshooting check table)

No.

Symptom

Operation indicator lamp

Abnormal point Detection method Checkpoint

Outdoor unit does not operate

repeated flashes every 0.5 seconds

1-time flash

2.5 seconds OFF

2-time flash

2.5 seconds OFF

5-time flash

2.5 seconds OFF

Mis-Wiring

Serial signal

Outdoor power system

6-time flash

2.5 seconds OFF

Outdoor thermistors

7-time flash

2.5 seconds OFF

Outdoor control system

Indoor coil thermistor Auxiliary indoor coil thermistor Room temperature thermistor

When indoor electronic control P.C. board does not receive serial signals for 4 to 5 seconds with OPERATION/ STOP(ON/ OFF) button of remote controller ON and 52C relay ON for the first time. NOTE: In case of serial signal error, mis-wiring

indication will appear by turning power off and then turning it back on.

When indoor electronic control P.C. board does not receive serial signals from outdoor unit for 4 to 5 seconds,

Indoor electronic control P.C. board constantly detects resistance every 8 seconds. When thermistor shorts or opens.

When compressor has stopped due to over current protection or start-up failure protection 3 times in a row within 1 minute after start-up.

<Thermistor short> Thermistors are abnormal when they short after compressor start-up. <Thermistor open> Thermistors are abnormal when they open after compressor start-up. However, discharge temperature thermistor is abnormal when open circuit is detected more than 10 minutes after compressor start-up.

When nonvolatile memory data cannot be read properly on outdoor control P.C. board, outdoor unit stops and restarts 3 minutes later.

· Shortage of refrigerant

· Outdoor electronic control P.C. board

Refer to J "Check

of outdoor thermistors" on page 50.

Refer to the characteristics of indoor coil thermistor, auxiliary indoor coil thermistor, and room temperature thermistor on page 54.

Refer to A "How to check inverter/ compressor" on page

47.

Replace outdoor electronic control P.C. board.

Refer to 'Checking serial signal error' on page 44.

3-time flash

2.5 seconds OFF

Indoor fan motor

When rotational frequency feedback signal is not emit during 12-second indoor fan operation.

Refer to G "Check of indoor fan motor" on page 49.

MSZ-G09SV MSZ-G12SV -

flashing

E1 E1

Operation

Indicator

· Flashing of the operation indicator lamp (on the left-hand side) indicates possible abnormalities.

· The operation indicator lamp (on the left-hand side) is lighting during normal operation.

w When the indoor unit has started operation and the above detection method has detected an abnormality (the first detection

after the power ON), the electronic control P.C. board turns OFF the 52C and the indoor fan motor with the operation indicator lamp lighting.

When the 52C and the indoor fan motor are turned ON again 3 minutes later and the same abnormality is detected (a sec-

ond detection of the above abnormality after the power ON), the control P.C. board turns OFF the 52C and the indoor fan motor with the operation indicator lamp flashing.

However, the first detection is cleared in case the power is turned OFF after the first detection.

Page 43

(Outdoor LED indication table)

Abnormal point

When serial signal stops from indoor unit for 60 seconds, compressor stops and then restarts 3 minutes later.

When compressor has stopped by over current protection within 1 minute after compressor start-up 3 times in a row, compressor stops and then restarts 3 minutes later.

When discharge temperature thermistor or fin temperature thermistor shorts or opens during compressor running, compressor stops and restarts 3 minutes later.

When nonvolatile memory date cannot be read properly, compressor stops and restarts 3 minutes later.

When 19A(MUZ-G09SV)/ 29A(MUZ-G12SV) current flows into power transistor, compressor stops and restarts 3 minutes later.

When discharge temperature thermistor exceeds 116:, compressor stops and restarts 3 minutes later. (Compressor restarts when discharge temperature thermistor reads 100: or below.)

When temperature at heat sink exceeds 78:(MUZ-G09SV)/ 80:(MUZ-G12SV) or outdoor electronic control P.C. board exceeds 68:(MUZ-G09SV)/ 78:(MUZ-G12SV), compressor stops and restarts 3 minutes later.

When indoor coil thermistor exceeds 75:, compressor stops and restarts 3 minutes later.

When current from power outlet exceeds 8A(MUZ-G09SV)/ 9A(MUZ-G12SV), compressor frequency lowers.

When indoor coil thermistor exceeds 55: in HEAT mode, compressor frequency lowers.

When indoor coil thermistor reads 8: or below in COOL mode, compressor frequency lowers.

When discharge temperature thermistor exceeds 111:, compressor frequency lowers.

When defrost thermistor short or open. w In this case, compressor continues running.

When power factor of compressor is not detected. w In this case, compressor continues running.

When discharge temperature has been 50: or below for 20 minutes.

No.

Symptom

LED indication

Detection method Checkpoint

Outdoor unit does not operate

'Outdoor unit stops and restarts 3 minutes later' is repeated

Outdoor unit operates (at low frequency)

Outdoor unit operates

1-time flash every

2.5 seconds

NOTE: For abnormality location, refer to 'Indoor troubleshooting check table' on page 41.

2-time flash

2.5 seconds OFF 3-time flash

2.5 seconds OFF

4-time flash

2.5 seconds OFF

5-time flash

2.5 seconds OFF

1-time flash 2-5 seconds OFF

3-time flash 2-5 seconds OFF

4-time flash 2-5 seconds OFF

5-time flash 2-5 seconds OFF

6-time flash 2-5 seconds OFF

7-time flash 2-5 seconds OFF

Serial signal

Outdoor power system

Outdoor thermistors

Outdoor control system

Over current protection

Discharge temperature overheat protection

Fin temperature thermistor overheat protection

High pressure protection

Frequency drop by current protection

Frequency drop by high pressure protection

Frequency drop by defrosting in COOL mode

Frequency drop by, discharge temperature protection.

Outdoor thermistors. Defrost thermistor.

Power factor detection

Low discharge temperature protection

· Refer to 'Checking serial signal error' on page 44.

· Refer to M 'Check of power supply' on page 52.

· Refer to A 'How to check inverter/

compressor' on page 47.

· Refer to J 'Check of outdoor thermistors' on page 50.

Refer to A 'How to check inverter/ compressor on page 47.

Replace outdoor electronic control P.C. board.

· Check refrigerant circuit and refrigerant amount.

· Refer to J 'Check of outdoor thermistors' on page 50.

· Check around outdoor unit.

· Check outdoor unit air passage.

· Check refrigerant circuit and refrigerant amount.

· Check stop valve.

The unit is normal, but check the following.

· Check if indoor filters are clogged

· Check if refrigerant is short.

· Check if indoor/outdoor unit air outlets are short cycled.

Refer to J 'Check of outdoor thermistors' on page 50.

Check compressor wiring.

· Refer to P 'Check of LEV' on page 53.

· Check refrigerant circuit and refrigerant amount.

LED

flashing

Hybrid

Transistor

module

transformer

MUZ-G09SV MUZ-G12SV -

NOTE 1. The location of LED is illustrated at the right figure.

2. LED lights up during normal operation.

E1 E1

The flashing frequency shows the number of times the LED blinks after every 2.5-second OFF. (Example) When the flashing frequency is “2”.

ON OFF

2.5-second OFF

0.5-second ON

2.5-second OFF

0.5-second ON

Page 44

2. Checking mis-wiring and serial signal error

1. Turn OFF the power supply.

2. Turn ON the power supply.

3. Press the EMERGENCY OPERATION switch.

Is the self-check function of indoor unit indicated when 52C turns ON 3 minutes later? w1 Short circuit of JPG and JPS on the indoor electronic control P.C. board

enables self-check to be displayed in 3 seconds.

Is there indoor-outdoor mis-wiring, poor contact, or wire disconnection?

Is there approx. 325V DC between TAB 63(+) and TAB 64(-) on outdoor electronic control P.C. board?

Is there approx. 230V AC between outdoor terminal block 2 and N when EMERGENCY OPERATION switch is pressed 3 minutes after turn OFF the power supply and then turn ON again?

Is mis-wiring or serial signal error indicated when 52C turns ON 3 minutes later?

Is there 325V DC between both ends of smoothing capacitor (C63) in the main circuit?

w3 Replace the outdoor electronic control P.C.

board.

Does the OPERATION INDICATOR lamp flash on and off when OPERATE/STOP(ON/OFF) button on the remote controller is pressed?

w1 If there is any error in

serial signal system, the mis-wiring indication will appear by turning the power OFF and then turning it back.

w2 Mis-wiring may damage indoor the

electronic control P.C. board during the operation in the left. Be sure to confirm the wiring is correct before the operation starts.

w3 Replace the

indoor electronic control P.C. board.

w3 Be sure to release the failure-mode

recall function after checking.

Mis-wiring indication

Yes

Repair wiring.

w3 Rectify in-out connecting wire.

w3 · Reactor

· Diode stack

· Power-factor

capacitor

· Smoothing

capacitor

· Fuse

Yes

Turn OFF the power supply and confirm that indooroutdoor wiring is correct. Short-circuit indoor terminal block N and 3. While pressing OPERATE-STOP(ON/ OFF) button on the remote controller, press the RESET button. (The above procedure allows OPERATION INDICATOR lamp to indicate the failure-mode.) w2

Open-circuit indoor terminal block N and 3, Check if there is amplitude of 5 to 10V DC between outdoor terminal block N and 3(for confirmation of serial signal) and if there is 230V AC between 2 and N.

1. Turn OFF the power supply.

2. Disconnect the connector between the compressor and the transistor module.

3.Turn ON the power supply.

4. Press the EMERGENCY OPERATION switch.

2.5 seconds OFFON ON

Serial signal error indication

defective

Yes

(light up or OFF)

· Turn OFF inverter-controlled lighting equipment.

· Turn OFF the power supply and then turn ON again.

· Press the EMERGENCY OPERATION switch.

· Re-install the unit away from light.

· Attach a filter on receiving part.

(

)

Procedure of release of failure-mode 1 Press the EMERGENCY

OPERATION switch.

2 Turn OFF the power supply and

then turn ON again.

3 Press the RESET button on the

remote controller.

Operation

Indicator

flashing

Outdoor unit does not operate. When the OPERATION INDICATOR lamp (on the left-hand side) flashes on and off continuously or only once.

Page 45

3. Trouble shooting procedure of main parts

2 3

WHT

Compressor motor

RED BLK

BLK

RED

WHT

GRY

YLW

BRN

MAIN AUX.

(Simple check method of main parts) MSZ-G09SV - MUZ-G09SV MSZ-G12SV - MUZ-G12SV -

Checking method and criterionPart name

Room temperature thermistor (RT11)

Indoor coil thermistor (RT12, RT13)

Defrost thermistor (RT61)

Disconnect the connector and measure the resistance with a tester. (Part temperature : 10:~30:)

Disconnect the connector and measure the resistance with a tester. (Part temperature : -10:~40:)

E1E1 E1E1

Normal Abnormal

8k"~20K" Open or short circuit

Normal Abnormal

5k"~55K" Open or short circuit

Discharge temperature thermistor (RT62)

Fin temperature thermistor (RT64)

Compressor (MC)

Indoor fan motor (MF)

Disconnect the connector and measure the resistance with a tester. Before measurement, hold the thermistor with your hands to warm it up. (Part temperature : 20:~40:)

Normal Abnormal

100k"~250K" Open or short circuit

Disconnect the connector and measure the resistance with a tester. (Part temperature : -10:~80:)

Normal Abnormal

5k"~30K" Open or short circuit

Disconnect the connector and measure the resistance between the terminals with a tester. (Winding temperature : -10:~40:)

Normal Abnormal MUZ-G09SV 1.88"~2.31" Open or short MUZ-G12SV 0.39"~0.50" circuit

Measure the resistance between the terminals with a tester. (Winding temperature : 10:~30:)

Motor partSensor part

(CN211) WHT-BLK BLK-RED

Normal 280"~304" 311"~338"

Abnormal

Open or short

circuit.

Measure the voltage Power ON.

BRN-YLW

YLW-GRY

Normal

4.5 ~ 5.5V

(When fan revolved one time)

0V➔5V➔0V

(Approx.)

Abnormal

Remain 0V or 5V

:INNER FUSE

Page 46

Outdoor fan

WHT

RED

BLK

LEV

WHT6

RED1

ORG4

YLW5

BRN2

BLU3

ORN

BLUYLW

RED

PNK

ROTOR

motor (MF61)

Checking method and criterionPart name Measure the resistance between the terminals with a tester.

(Winding temperature : -10

:~40:)

Vane motor (MV1, MV2)

R.V. coil (21S4)

Expansion valve (LEV)

Normal

abnormal

MUZ-G09SV MUZ-G12SV WHT-BLK BLK-RED

246"~302"

174"~214"

177"~217" 308"~378"

Open or short

Measure the resistance between the RED terminal and the other ones. (Winding temperature : 10:~30:)

Normal Abnormal

approx. 282~306" in each phase

Open or short circuit

Measure the resistance between the terminals with a tester. (Part temperature : -10:~40:)

Normal

2.6k"~3.3k"

Abnormal

Open or short circuit

Measure the resistance with a tester. (Part temperature : -10:~40:)

circuit

(CN724) WHT-RED RED-ORN

YLW-BRN

BRN-BLU

Normal Abnormal

39"~56" Open or short circuit

:INNER PROTECTOR

Page 47

How to check inverter/ compressor

Check of open phase

●Be sure to use the analog voltmeter for measurement.

●With the connector between compressor and transistor module

disconnected, activate the inverter and measure the balance of voltage between terminals.

<< Operation method>> Start heating operation by pressing the EMERGENCY OPERATION switch on the indoor unit. (test-run mode) <<Measurement point>>

at 3 points BLK-WHT BLK-RED WHT-RED

<<Judgment>>

Balanced································normal Unbalanced···························abnomal (open phase) Shutdown by overcurrent·······abnormal (short)

NOTE 1. Measure AC voltage, at 3 points more than one minute after the

outdoor fan motor starts running.

2. The output voltage values in above table have tolerance withinJi20%.

Check of transistor module

●Disconnect the connector between compressor and transistor module, and measure resistance between terminals on the transistor module.

<<Measurement point>> at 6 points BLK-WHT, WHT-BLK BLK-RED, RED-BLK WHT-RED, RED-WHT

<<Judgment>> Infinite ["]···········normal 0~dozens of ······abnormal (short)

COOL

HEAT

COOL

HEAT

79 58 85 58

190 155 190 155

Operational

frequency

[Hz]

Operation

mode

Model

MSZ-G09SV- A1

Output voltage

[V]

w Measure AC voltage between the lead wires at 3 points.

w Measure resistance between the lead wires at 3 points

ohmmeter indication

normal (infinite)

abnormal (0~dozens of ")

ACV

300

ACV

300

ACV

300

ACV

300

ACV

300

ACV

300

Normal (Balanced)

Abnormal (unbalanced)

BLK-WHT BLK-RED WHT-RED

Voltmeter indication

MSZ-G12SV- A1

Disconnect the connector between compressor and transistor module.

Check the voltage between terminals.

Are voltages

balanced?

See B 'Check of open phase' on page 47.

Check the resistance of transistor module.

Yes

Check the compressor.

See D 'Check of compressor' on page 48.

See C 'Check of transistor module' on page 47.

Is resistance infinite?

No (0~several

Yes

Replace the outdoor electronic control P.C. board.

Replace the transistor module.

Page 48

Check of compressor winding

Check of compressor

● Disconnect the connector between compressor and transistor module, and measure resistance between the compressor terminals.

<<Measurement point>>

at 3 points BLK-WHT BLK-RED WHT-RED

<<Judgment>>

1.88 to 2.31"(MUZ-G09SV)/ 0.39 to 0.50"(MUZ-G12SV)at -10: to 40: of part temperature 0["] ···············abnormal [short] Infinite["] ·······abnormal [open] NOTE 1. Be sure to zero the ohmmeter before measurement.

2. Winding resistance for each phase is 2.14"(MUZ-G09SV)/

0.45"(MUZ-G12SV)at 20:.

Check of compressor operation time

●Connect the compressor and activate the inverter. Then measure the time until the inverter stops due to over current.

<<Operation method>>

Start heating or cooling operation by pressing the EMERGENCY OPERATION switch on the indoor unit. (Test-run mode)

<<Measurement>> Measure the time from the start of outdoor fan running till the

stop of the inverter due to over current.

<<Judgment>>

For reference 0~10 seconds·····················abnormal (short) 10~60 seconds···················abnormal (compressor lock-out) 60 seconds~5 minutes·······abnormal (refrigerant circuit defect) more than 5 minutes···········normal

w Measure resistance between the lead wires at 3 points.

Outdoor fan starts Abnormal (Compressor winding short or layer short)

Abnormal (Compressor lock-out)

Abnormal (Refrigerant circuit defect, etc.)

Normal

0 sec.

10 sec.

60 sec.

5 min.

normal (1~several ")

abnormal (0" ····· short)

abnormal (infinite····· open)

Ohmmeter indication

Start

Replace the compressor.

E 'Check of compressor winding' on page 48. Is compressor normal?

Replace the compressor.

Yes

2 3

WHT

Compressor motor

RED BLK

Y es

F 'Check of compressor operation time' on page

48. Does the compressor operate continuously?

Is the compressor operation time more than 10 seconds?

Check the refrigerant circuit.

Yes

Page 49

●Re-install the unit away from the lights.

●Attach a filter on receiving part.

Check of remote controller and power monitor, receiver P.C. board.

Check of indoor fan motor.

Turn OFF the power supply and check the connector CN 211 visually.

No(othes)

Yes

Disconnect lead wires from CN 211 on indoor electronic control P.C. board. Measure resistance between lead wire 1 and 3 and then 2 and 3.

(not clear)

Yes(0 or ∞)

(How to check main parts)

Indoor fan does not operate.

Indoor unit operates by pressing the EMERGENCY OPERATION switch, but does not operate with the remote controller.

W Check if the remote controller is exclusive for this air conditioner.

Is LED display on remote controller visible?

Does the unit operate with remote controller?

Is noise heard from the radio?

Are there any fluorescent lights of inverter or radio start type within 1 meter?

Is resistance 0"(short circuit) or ∞(open circuit)?

Replace batteries and then press RESET button. See page 40.

Replace the indoor electronic control P.C. board with power monitor, receiver P.C. board.

Replace the indoor fan motor.

Replace the indoor electronic control P.C. board.

CN211

3 2 1

Fan

motor

Indoor electronic control P.C. board

Switch on the remote controller.

Remove batteries and set them back. Check again if indoor unit operates with remote controller.

Tune a radio in to AM and press OPERATE/STOP (ON/OFF) button on remote controller.

Replace the remote controller.

LD101T 1 2 3 4 5

1 2 3 4 5

Remote controller

Indoor electronic control P.C. board

Power monitor, receiver P.C. board

Yes

Page 50

Check of outdoor thermistors

Check of indoor electronic control P.C. board

The unit does not operate with the remote controller. The OPERATION INDICATOR lamp does not light up either, with the EMERGENCY OPERATION switch ON.

Indoor electronic control P.C. board

Varistor (NR11)

Indoor electronic control P.C. board

Fuse (F11)

1 3

N 2 3

Thermal fuse connector

Terminal

block

Measure resistance between CN 6411 and 2.

Measure resistance between CN 6421 and 2.

Yes

The thermistors in the outdoor unit are abnormal.

Replace the thermistor.

Replace the outdoor

electronic control P.C. board.

●Disconnect the connectors CN 641 and CN 642 from the outdoor electronic control P.C. board. (Check the characteristics of each thermistor.)

1 Connect CN 641 and CN 642. 2 Disconnect the

connector between the compressor and transistor module.

(Defrost thermistor)

Measure resistance between CN 6413 and 4.

Turn ON the power supply to indoor unit and press the EMERGENCY OPERATION switch.

Discharge temperature thermistor

( )

Fin temperature thermistor

(

)

As per the characteristics on page 55?

Yes

Does the unit operate 10 minutes or more?

Is LED in the outdoor electronic control P.C. board flashing 5 minutes?

Reconnect the connector.

Yes

Check both “parts side” and “pattern side” of indoor electronic control P.C. board visually.

Replace the fuse.

Is fuse (F11) blown?

Be sure to check both fuse and varistor in any case.

Replace the fan motor .

Replace the indoor electronic control P.C. board.

Is winding resistance of fan motor 0 "?

Is winding resistance of vane motor 0 "?

Yes

Replace the vane motor.

Yes

Is varistor (NR11) burnt?

Replace the varistor.

Yes

Turn OFF the power supply. Remove indoor fan motor connector CN211 and vane motor connector CN151 from the indoor electronic control P.C. board and turn ON the power supply.

Does the unit operate with the remote controller? Does the OPERATION INDICATOR lamp light up by pressing the EMERGENCY OPERATION switch?

Yes

Be sure to check both resistance.

Turn OFF the power supply.

Page 51

Check of outdoor fan motor

Check of R.V. coil

Disconnect the connector between the compressor and transistor module. Turn ON the power supply to indoor unit, and press twice (heating) the EMERGENCY OPERATION switch.

Cooling operates when heating is expected.

Outdoor fan motor does not work.

Press the

EMERGENCY OPERATION switch again.

Does the 52C work?

Replace the outdoor fan motor.

● First, measure resistance of the R.V. coil to check if it is defective or not.

● If the connector CN 721 is not connected or the R.V. coil is open, the voltage occurs between the terminals even when

the control is OFF.

3 minutes after power ON, is there voltage of 230V AC between CN 721 1 and 2 on the relay P.C. board?

3 minutes after power ON, is there voltage of 230V AC between outdoor terminal block 2 and N?

Is there voltage of approx. 230V AC either between 1 and 3 or between 3 and 5 at CN 771?

In-out connecting wire

Outdoor terminal block

N 2 3

Disconnect the connector CN 771 on the relay P.C. board. Disconnect the connector between compressor and transistor module. Turn ON the power supply to indoor unit and press the EMERGENCY OPERATION switch.

CN721

Relay P.C. board

R.V. coil

230V AC

Yes

CN771

Relay P.C. board

2 3

5 6

Fan

motor

In-out connecting wire

Outdoor terminal block

N 2 3

Replace the relay P.C. board.

Repair in -out connecting wire.

Replace the indoor

electronic control P.C. board.

Yes

Replace the relay P.C. board.

Replace the R.V. coil.

Page 52

Replace the current limiting resistor (R64).

Check of thermal fuse

Check of power supply.

Disconnect the connector between compressor and transistor module. Turn ON power supply to indoor unit and press EMERGENCY OPERATION switch.

Turn OFF the power supply.

Replace the thermal fuse (F12).

Inverter does not work.

Check of rush current limiting circuit

Outdoor unit does not operate at all or stops immediately due to over current.

Check the electric parts in main circuit.

Replace the outdoor electronic control P.C. board.

NOTE : When the current limiting resistor is open, the rush current limiting relay may not be working

properly. Therefore confirm the limiting resistor works properly after replacing it.

3 minutes after power ON, is there voltage of approx. 230V AC between outdoor terminal block 2and N?

Is there voltage of approx. 340V DC between TAB 64(-) and TAB 63(+)?

Dose LED light up or flash?

Is resistance ∞ between the connector CN 201 1 on indoor electronic control P.C. board and the terminal block N?

In-out connecting wire

Outdoor terminal block

N 2 3

Yes

(How to check power supply and others)

Yes

Does current limiting resistor (R64) detect 10"?

No ∞

Yes

CN201

Indoor electronic control P.C. board

Press the

EMERGENCY OPERATION switch again.

Does the 52C work?

Repair wiring.

Replace the indoor

electronic control P.C. board.

Yes

Start

Page 53

Replace the LEV coil.

Replace the LEV.

Check of linear expansion valve (LEV)

With remote controller set toward the indoor unit, press OPERATE/ STOP(ON/ OFF) button and confirm one beep tone.

Replace the outdoor electronic control P.C. board.

LEV operates in full-opening direction.

Is LEV coil properly fixed to the body?

Heating/ Cooling do not operate.

Do you hear LEV "click, click·······"? Do you touch LEV and feel it vibrate?

Is LEV coil resistance as per characterictics below?

Do you hear LEV "click, click·········"?

Yes

LEV (CN 724) WHT–RED RED–ORN YLW–BRN BRN–BLU

Resistance

39"~56"

Characteristics of LEV coil

Properly fix LEV coil to the body.

Confirm again that LEV is operating.

1Press the EMERGENCY OPERATION switch. 2Turn OFF the power supply. 3Turn ON the power supply.

Page 54

TEST POINT DIAGRAM AND VOLTAGE

10 20 30 40 50 60

MSZ-G09SV MSZ-G12SV -

Indoor electronic control P.C. board

12V DC

Varistor (NR11)

{

Fuse (F11) 250V AC 3.15A

Fan motor power supply

}

Power supply input 220-

}

240V AC

Room temperature thermistor (RT11)

Timer short mode point (JPG, JPS) (Refer to page 44.)

Indoor coil thermistor (RT12)

Indoor coil thermistor (RT13)

}

4V DC

How to set “Auto restart function” Cut the Resistor JR07. (Refer page 39.)

Emergency operation switch

5V DC

}

Indoor coil thermistor (RT12, 13) Room temperature thermistor (RT11)

)

Resistance (k

Temperature (;;)

Page 55

MUZ-G09SV -

-20 -10 0 10 20 30 40

100

Temperature(:)

Defrost thermistor(RT61)

Temperature(:)

Discharge temperature thermistor(RT62)

0 102030405060708090100110120

100

200

300

400

500

600

700

0 1020304050607080

100

120

140

160

180

200

Temperature(:)

Fin temperature thermistor(RT64)

Resistance(k")

MUZ-G12SV -

Outdoor electronic control P.C. board

325V DC

}

BLK

WHT

RED

Transistor module measurement point

Fin temperature thermistor (RT64)

Discharge Defrost thermistor (RT61)

temperature

thermistor

(RT62)

LEV connector (CN724)

LED monitor lamp

Connector for indoor/outdoor communication (CN601)

Jumper wire for change in defrost setting (JS) (Refer to page 38.)

Page 56

MUZ-G09SV -

Noise filter P.C. board

Current -limiting relay (X64)

Surge absorber (DSA61)

MUZ-G12SV -

Noise filter P.C. board

}

230V ACVaristor (NR61)

Current -limiting relay (X64)

Surge absorber (DSA61)

Varistor (NR61)

}

230V AC

Page 57

MUZ-G09SV MUZ-G12SV -

Relay P.C. board

R.V. coil(21S4) 230V AC

Outdoor fan motor (MF61) 230V AC

Page 58

DISASSEMBLY INSTRUCTIONS

<"Terminal with lock mechanism" Detaching points>

In case of terminal with lock mechanism, detach the terminal as shown below. There are two types ( Refer to (1) and (2)) of the terminal with lock mechanism. The terminal with no lock mechanism can be removed by pulling it out. Check the shape of the terminal and work.

(1) Slide the sleeve and check if there is a locking lever or not. (2) The terminal with this connector is a terminal

Sleeve

with lock mechanism

1Slide the sleeve. 2Pull the terminal while

Locking lever

11-1. MSZ-G09SV - MSZ-G12SV -

pushing the locking lever.

E1E1

INDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing the front panel

(1) Remove the screw caps of the front panel.

Remove the screws.

(2) Pull the panel down to your side slightly and unhook the

catches at the top.

1Hold the sleeve, and pull out the terminal slowly.

Connector

Photo 1

Front panel

Screws

2. Removing the electronic control P.C. board and the display P.C. board

(1) Remove the front panel. (Refer to 1) (2) Remove the screw of the electrical cover.

Remove the electrical cover. (3) Remove the V.A. clamp. (4) Remove the cord clamp. (5) Remove the screw of the terminal block. (6) Remove the screw of the ground wire. (7) Disconnect all the connectors and all the lead wires on the

electronic control P.C. board. (8) Remove the R.L holder. (9) Remove the electronic control P.C. board and the display

P.C. board.

Photo 2

Screw of the V.A. clamp

Screw of the ground wire

Fan motor connector

V.A. clamp

Room temperature thermistor connector

Indoor electronic control P.C. board

Vane motor connector

Cord clamp

R.L holder

Page 59

OPERATING PROCEDURE PHOTOS

3. Removing the electrical box

(1) Remove the front panel. (Refer to 1) (2) Remove the electrical cover. (Refer to 2) (3) Disconnect the connector of the indoor coil thermistor. (4) Disconnect the motor connector (CN211 and CN121) and

the vane motor connector (CN151) on the electronic

control P.C. board. (5) Remove the screw of ground wire. (6) Remove the fan motor lead wire and indoor coil thermistor

from the electrical box. (7) Remove the lead wire of vane motor from the bottom of

electrical box. (8) Remove the screw fixing the electrical box, remove the

electrical box.

4. Removing the vane motor

(1) Remove the front panel. (2) Remove the screws of the vane motor, disconnect the vane

motor connectors from the electronic control P.C. board. (3) Disconnect the R.L. holder. (4) Pull out the drain hose from the nozzle assembly, remove

the nozzle assembly. (5) Remove the vane motors.

Photo 5

Screws of the vane motor

Photo 3

Photo 4

Screw of the ground wire

Screw of the electrical box

5. Removing the line flow fan and the indoor fan motor

(1) Remove the front panel. (Refer to 1) (2) Remove the electrical box. (Refer to 3) (3) Pull out the drain hose from the nozzle assembly, remove

the nozzle assembly.

(4) Remove the hexagon socket set screw from the line flow

fan.

(5) Remove the screws fixing the fan motor, remove the fan

motor.

(6) Remove the screws fixing the left side of the heat

exchanger. (7) Lifting the left side of the heat exchanger. (8) Remove the line flow fan.

Photo 6

Screws fixing the left side of the heat exchanger

Photo 7

Indoor coil thermistor

Vane motors

screws of the fan motor

Drain hose

Page 60

11-2. MUZ-G09SV - MUZ-G12SV OUTDOOR UNIT

E1E1

OPERATING PROCEDURE

1. Removing the cabinet

(1) Remove the screws fixing the service panel. (2) Pull down the service panel and remove it from the cabinet. (3) Remove the screws fixing the cabinet and top panel.

Photo 2

Cabinet

2. Removing the inverter assembly

(1) Remove the service panel, top panel and the cabinet.

(Refer to 1)

(2) Disconnect the connectors (CN641, CN642, CN601 and

CN724) on the electronic control P.C. board.

(3) Remove the connectors (CN771 and CN721) on the relay

P.C. board. (4) Remove the screws fixing the inverter assembly. (5) Remove the compressor connector. (6) Remove the inverter assembly.

Top panel

Screws of the

service panel

Hooks

Photo 1

Screws of the cabinet

Photo 3

PHOTOS

Screws of the top panel

Screws of the service panel

Screws of the inverter assembly

3. Removing the noise filter P.C. board

(1) Remove the service panel, top panel and the cabinet.

(Refer to 1)

(2) Remove all the connectors and the terminals on the noise fil-

ter P.C. board. (3) Remove the screw of ground wire on the relay panel. (4) Remove the hook of T.B. support. Then, remove the noise

filter P.C. board.

4. Removing the relay P.C. board

(1) Remove the service panel, top panel and the cabinet.

(Refer to 1)

(2) Remove all the connectors and the terminals on the relay

P.C. board.

(3) Remove the hook of T.B. support. Then, remove the relay

P.C. board.

5. Removing the electronic control P.C. board

(1) Remove the service panel, top panel and the cabinet.

(Refer to 1) (2) Remove the inverter assembly. (3) Remove the terminal of diode stack. (4) Remove all the connectors and the terminals on the elec-

tronic control P.C. board. (5) Remove the screws fixing the P.B. support. (6) Pull up the heat sink and remove the electronic control P.C.

board from the relay panel. (7) Remove the screws fixing the heat sink and the transistor

module. (8) Remove the electronic control P.C. board from the heat

sink.

Connector

Photo 4

Screws of the heat sink

Hooks

Page 61

OPERATING PROCEDURE

6. Removing the outdoor fan motor

(1) Remove the service panel, top panel and the cabinet.

(Refer to 1)

(2) Disconnect the connector remove the clamp of fan motor

lead wire.

(3) Remove the propeller fan nut and remove the propeller fan. (4) Remove screws fixing the outdoor fan motor.

7. Removing the compressor

(1) Remove the service panel, top panel and the cabinet.

(Refer to 1) (2) Remove the soundproof felt. (3) Remove the terminal cover on the compressor. (4) Remove the electrical assembly. (Refer to 2) (5) Release gas from the refrigerant circuit. (6) Disconnect the welded part of the discharge pipe. (7) Disconnect the welded part of the suction pipe. (8) Remove nuts fixing the compressor. (9) Remove the compressor.

Photo 5

Propeller fan

PHOTOS

Set screws of the outdoor fan motor

Propeller fan nut

Compressor set nuts

Lead clamps

Welded parts

Page 62

E02 424 000 E02 424 010 E02 408 100 E02 410 100 E02 409 234 E02 411 234 E02 408 970 E02 409 067 E02 408 142 E02 424 020 E02 409 975 E02 409 976

FRONT PANEL (WH) GRILLE (WH) AIR FILTER AIR FILTER BOX (WH) BOX (WH) INSTALLATION PLATE SCREW CAP (WH) CATCH DECORATION COVER (WH) CORNER BOX RIGHT (WH) CORNER BOX LEFT (WH) AIR CLEANING FILTER DEODORIZING FILTER

Symbol in Wiring Diagram

Q'ty/unit

2PCS/SET 3PCS/SET

See page 66. (MAC-1300FT)

See page 66. (MAC-1800DF)

RemarksPart No.

NO.

Part Name

1 1 2

1 2 3 1 1 1 1 1

(WH)

1 2

5 6 7 8

9 10 11 12

MSZ-G09SV-

1 1

1 1 2 3 1 1 1 1 1

(WH)

MSZ-G12SV-

E02 518 620 E02 448 620 E02 151 667 E02 151 666 E02 155 666

INDOOR HEAT EXCHANGER INDOOR HEAT EXCHANGER UNION (LIQUID) UNION (GAS) UNION (GAS)

{6.35 {9.52 {12.7

1 1

14 15

1 1

PARTS LIST

MSZ-G09SV - (WH) MSZ-G12SV - (WH)

12-1. INDOOR UNIT STRUCTURAL PARTS

4 (w) 10 1

SCREW CAP

CATCH

3 (w)

12-1. INDOOR UNIT STRUCTURAL PARTS

12-2. INDOOR UNIT HEAT EXCHANGER

9 11

13 (w)

(w) These figures show about MSZ-G12SV.

12-2. INDOOR UNIT HEAT EXCHANGER

Page 63

E02 448 235 E02 409 040 E02 409 041 E02 408 702 E02 001 504 E02 408 303 E02 448 303 E02 151 300 E02 151 505 E02 408 302 E02 408 509 E02 408 308 E02 448 307 E02 448 375 E02 518 452 E02 519 452 E02 424 395 E02 408 034 E02 448 034 E02 408 381 E02 127 382 E02 336 385

1 2 3 4 5 6 7 8 9

11 12 13 14

16 17 18 19 20 21

NOZZLE (WH) VANE UPPER (WH) VANE LOWER (WH) DRAIN HOSE SLEEVE BEARING VANE MOTOR (HORIZONTAL) VANE MOTOR (VERTICAL) INDOOR FAN MOTOR FAN MOTOR RUBBER MOUNT LINE FLOW FAN BEARING MOUNT ROOM TEMPERATURE THERMISTOR INDOOR COIL THERMISTOR TERMINAL BLOCK ELECTRONIC CONTROL P.C. BOARD ELECTRONIC CONTROL P.C. BOARD POWER SUPPLY CORD VANE CLANK SET VANE MOTOR SUPPORT SET THERMAL FUSE FUSE VARISTOR

Symbol in Wiring Diagram

Q'ty/unit

UP & DOWN RIGHT & LEFT RC4V19 2PES/SET

3P AUTO RESTART AUTO RESTART

UP & DOWN RIGHT & LEFT 93:

3.15A

RemarksPart No.

NO.

Part Name

MV1 MV2

RT11

RT12, 13

F12 F11

NR11

1 1 1 1 1 1 1 1 2 1 1 1 1 1

1 1 1 1 1 1 1

MSZ-G12SV-

(WH)

1 1 1 1 1 1 1 1 2 1 1 1 1 1 1

1 1 1 1 1 1

MSZ-G09SV-

(WH)

MSZ-G09SV - (WH)

22 23

E02 448 426 E02 141 083

REMOTE CONTROLLER REMOTE CONTROLLER HOLDER

1 1

MSZ-G12SV - (WH)

12-3. INDOOR UNIT FUNCTIONAL PARTS AND

ELECTRICAL PARTS

11 5

SLEEVE BEARING

12-4. ACCESSORY AND

REMOTE CONTROLLER PART

22 23

FUSE

12-3. INDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS

Part numbers that are circled are not shown in the illustration.

12-4. ACCESSORY AND REMOTE CONTROLLER PART

ROOM TEMPERATURE

THERMISTOR

VARISTOR

Page 64

MUZ-G09SV -

GRILLE FRONT PANEL BACK PANEL BACK PANEL SERVICE PANEL TOP PANEL TOP PANEL PROPELLER FAN OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR MOTOR SUPPORT MOTOR SUPPORT SEPARATOR SEPARATOR OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER 4-WAY VALVE 4-WAY VALVE EXPANSION VALVE EXPANSION VALVE STOP VALVE (LIQUID) STOP VALVE (GAS) STOP VALVE (GAS) COMPRESSOR COMPRESSOR BASE CONDENSER NET CONDENSER NET CAPILLARY TUBE MUFFLER MUFFLER MUFFLER SPECIAL MUFFLER SPECIAL

When servicing, cut the tube to the proper length as shownin the REFRIGERANT SYSTEM DIAGRAM see page 12.

T2W E56 521 T2W E45 232 T2W E66 531 T2W E56 531 M21 40L 245 M21 32E 297 M21 21G 297 M21 21J 501 T2W E66 301 T2W E68 301 M21 47J 515 M21 50L 515 M21 85A 293 M21 45G 293 T2W E66 630 T2W E68 630 M21 21J 961 M21 20A 961 T2W E66 645 M21 56T 645 M21 21J 662 M21 00A 661 M21 00L 661 T92 518 272 T92 501 280 M21 54A 290 M21 62L 523 M21 20A 523 M21 LV0 936 M21 00G 943 M21 22A 943 T2W E66 943 M21 00E 943

1 2

3 4

5 6

12 13

15 16

17 18

RA6V18RA6V28-

EXPVALVE ,CAPILLARY EXPVALVE ,CAPILLARY

KHV-104FGK SHV-130FEA

{3.0✕{2.0✕400

MF MF

MC MC

1 1 1

1 1

1 2

Symbol

in Wiring

Diagram

Q'ty/unit

RemarksPart No.

NO.

Part Name

MUZ-G09SV-

MUZ-G12SV-

MUZ-G12SV -

12-5. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS

Part numbers that are circled are not shown in the illustration.

15166

37 11

Page 65

MUZ-G09SV -

DIODE STACK ELECTRONIC CONTROL P.C. BOARD ELECTRONIC CONTROL P.C. BOARD NOISE FILTER P.C. BOARD NOISE FILTER P.C. BOARD TERMINAL BLOCK FUSE R.V. COIL FIN TEMPERATURE THERMISTOR REACTOR REACTOR POWER-FACTOR CAPACITOR POWER-FACTOR CAPACITOR SMOOTHING CAPACITOR SMOOTHING CAPACITOR CURRENT-LIMITING RESISTOR CURRENT-LIMITING RESISTOR THERMISTOR SET THERMISTOR SET RELAY P.C. BOARD FUSE

T2W E45 447 T2W E66 451 T2W E68 451 T2W E66 424 T2W E68 424 T2W E45 376 T2W A79 382 T2W E66 389 M21 21L 307 T2W E66 337 M21 21A 337 T2W E66 356 T2W E68 356 T2W E66 357 T2W E68 357 M21 00J 361 M21 PG2 361 M21 43A 307 M21 61A 307 T2W E66 441 T2W E66 382

1 2

3 4

5 6 7

12 13

Symbol

in Wiring

Diagram

Q'ty/unit

250V/2A

100+/420V 165+/420V 1500+/420V 2500+/420V 10"/20W

250V/ 1A

RemarksPart No.

NO.

Part Name

DS61, DS62

TB2 F801 21S4

RT64

L61

L61 C61 C61 C63 C63 R64 R64

RT61,62 RT61,62

F901

2 1

1 1 1 1 1

1 1

1 1 1 1 1

1 1 1

MUZ-G09SV-

MUZ-G12SV-

MUZ-G12SV -

12-6. OUTDOOR UNIT

ELECTRICAL PARTS

Part number that is circled is not shown in the illustration.

Page 66

OPTIONAL PARTS

13-1. AIR CLEANING FILTER

● AIR CLEANING FILTER removes fine dust of 0.01 micron from air by means of static electricity.

● Normal life of AIR CLEANING FILTER is 4 months. However, when it becomes dirty, replace it as soon as possible.

● Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet.

● DO NOT reuse AIR CLEANING FILTER even if it is washed.

● DO NOT remove or attach AIR CLEANING FILTER during unit operation.

Model Part No.

MSZ-G09SV - MSZ-G12SV -

E1E1

MAC-1300FT

13-2. DEODORIZING FILTER

● DEODORIZING FILTER removes ammonia and hydrogen sulfide emitted from tobacco, and odor of pets.

● Clean DEODORIZING FILTER every two weeks. If the filter is particularly dirty, clean the filter more often.

● For cleaning, soak the filter in warm water for a while, and then wash and rinse it. Dry the filter in the shade thoroughly.

● When the filter color is still dark even after cleaning, replace the filter with a new one.

Replace the filter at least once a year.

Model Part No.

MSZ-G09SV - MSZ-G12SV -

E1E1

MAC-1800DF

● DEODORIZING FILTER and AIR CLEANING FILTER can be attached on either side.

Page 67

Page 68

HEAD OFFICE MITSUBISHI DENKI BLDG.MARUNOUCHI TOKYO100-8310 TELEX J24532 CABLE MELCO TOKYO

New publication, effective Mar. 2000 Specifications subject to change without notice.

Mitsubishi Electric MSZ-G09SV-E1, MUZ-G09SV-E1, MSZ-G09SV-WH, MSZ-G12SV-E1, MUZ-G12SV-E1 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual