Mitsubishi MU-GA50VB-E1, MU-GA60VB-E1, MU-GA80VB-E1 Service Manual

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Page 1

SPLIT-TYPE, AIR CONDITIONERS

HFC

utilized

R410A

OUTDOOR UNIT

SERVICE MANUAL

Wireless type Models

Revision:A

• RoHS PARTS LIST has been added. Please void OB370.

No. OB370

REVISED EDITION-A

MU-GA50VB MU-GA60VB MU-GA80VB -

MU-GA50VB MU-GA60VB

Indoor unit service manual MS-GA•VB Series (OB369)

CONTENTS

1. TECHNICAL CHANGES ····································2

2. PART NAMES AND FUNCTIONS······················5

3. SPECIFICATION·················································6

4. NOISE CRITERIA CURVES·······························8

5. OUTLINES AND DIMENSIONS·························9

6. WIRING DIAGRAM ··········································10

7. REFRIGERANT SYSTEM DIAGRAM··············12

8. PERFORMANCE CURVES······························15

9. TROUBLESHOOTING······································23

10. DISASSEMBLY INSTRUCTIONS·····················30

11. PARTS LIST······················································36

12. RoHS PARTS LIST···········································40

NOTE:

This service manual describes technical data of outdoor units. RoHS compliant products have <G> mark on the spec name plate. For servicing of RoHS compliant products, refer to the RoHS Parts List.

Page 2

Refrigerating

oil

Refrigerant

New refrigerant

R410A

HFC-32: HFC-125 (50%:50%)

Pseudo-azeotropic refrigerant

Not included

A1/A1

72.6

-51.4

1.557 64

Non combustible

1730

From liquid phase in cylinder

Possible

Incompatible oil

Non Non

Previous refrigerant

R22

R22 (100%)

Single refrigerant

Included

86.5

-40.8

0.94

44.4

Non combustible

0.055 1700

Gas phase

Possible

Compatible oil

Light yellow

Non

Refrigerant Composition (Ratio) Refrigerant handling Chlorine Safety group (ASHRAE) Molecular weight Boiling point (:) Steam pressure [25:](Mpa) Saturated steam density [25:](Kg/K) Combustibility ODP w1 GWP w2 Refrigerant charge method Additional charge on leakage Kind Color Smell

w1:Ozone Depletion Potential : based on CFC-11 w2 :Global Warming Potential : based on CO

Revision:A

• RoHS PARTS LIST has been added.

MU-A18WV - ➔MU-GA50VB -

1. Oil separator has been removed.

2. Model name has been changed. Indication of capacity has been changed. (BTU➔kW)

MU-A24WV - ➔MU-GA60VB MU-A30WV - ➔MU-GA80VB -

1. Model name has been changed. Indication of capacity has been changed. (BTU➔kW)

TECHNICAL CHANGES

E1E1

INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT

• This room air conditioner adopts an HFC refrigerant (R410A) which never destroys the ozone layer.

• Pay particular attention to the following points, though the basic installation procedure is same as that for R22 conditioners. 1 As R410A has working pressure approximate 1.6 times as high as that of R22, some special tools and piping parts/

materials are required. Refer to the table below.

2 Take sufficient care not to allow water and other contaminations to enter the R410Arefrigerant during storage and

installation, since it is more susceptible to contaminations than R22.

3 For refrigerant piping, use clean, pressure-proof parts/materials specifically designed for R410A. (Refer to 2. Refrigerant

piping.)

4 Composition change may occur in R410A since it is a mixed refrigerant. When charging, charge liquid refrigerant to prevent

composition change.

Page 3

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

New Specification Current Specification

The incompatible refrigerating oil easily separates from refrigerant and is in the upper layer inside the suction muffler. Raising position of the oil back hole enables to back the refrigerating oil of the upper layer to flow back to the compressor.

Since refrigerant and refrigerating oil are compatible each, refrigerating oil backs to the compressor through the lower position oil back hole.

Compressor

Suction muffler

Oil back hole

Refrigerating oil

Refrigerant

Compressor

Suction muffler

Oil back hole

Refrigerating oil /Refrigerant

Compressor

-30 -20 -10 0 10 20

40 50 60

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

(MPa [Gauge])

R410A R22

Conversion chart of refrigerant temperature and pressure

Saturated liquid pressure

(:)

R410A tools

Can R22 tools be used?

Gas leak detector

R410A has high pressures beyond the measurement range of existing gauges. Port diameters have been changed to prevent any other refrigerant from being charged into the unit.

Hose material and cap size have been changed to improve the pressure resistance.

Dedicated for HFC refrigerant.

6.35 mm and 9.52 mm

Description

Clamp bar hole has been enlarged to reinforce the spring strength in the tool. Provided for flaring work (to be used with R22 flare tool).

Provided to prevent the back flow of oil. This adapter enables you to use vacuum pumps.

It is difficult to measure R410A with a charging cylinder because the refrigerant bubbles due to high pressure and high-speed vaporization

Yes

New

Gauge manifold

Charge hose

Torque wrench

Flare tool Flare gauge

Vacuum pump adapter

Electronic scale for refrigerant charging

No : Not Substitutable for R410A Yes : Substitutable for R410A

No 12.7 mm and 15.88 mm

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

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/ff[Gauge])

1.Tools dedicated for the air conditioner with R410A refrigerant

The following tools are required for R410A refrigerant. Some R22 tools can be substituted for R410A tools. The diameter of the service port on the stop valve in outdoor unit has been changed to prevent any other refrigerant being charged into the unit. Cap size has been changed from 7/16 UNF with 20 threads to 1/2 UNF with 20 threads.

Page 4

Electronic scale for refrigerant charging

Outdoor unit

Refrigerant gas cylinder operating valve

Refrigerant gas cylinder for R410A with siphon

Refrigerant (liquid)

Service port

Gauge manifold valve (for R410A)

Union

Liquid pipe Gas pipe

Stop valve

Indoor unit

Charge hose (for R410A)

R410A

Pipe diameter

6.35

9.52

12.7

15.88

17 22 26 29

Dimension of flare nut

R22

17 22 24 27

2.Refrigerant piping

Wall thickness

Outside diameter

Pipe

For liquid

For gas

6.35

9.52

12.7

15.88

0.8 mm

1.0 mm

Heat resisting foam plastic Specific gravity 0.045 Thickness 8 mm

Insulation material

1 Specifications

Use the refrigerant pipes that meet the following specifications.

• Use a copper pipe or a copper-alloy seamless pipe with a thickness of 0.8 mm (6.35, 9.52, 12.7), 1.0 mm (15.88). Never use any pipe with a thickness less than 0.8 mm (6.35, 9.52, 12.7), 1.0 mm (15.88), as the pressure resistance is insufficient.

2 Flaring work and flare nut

Flaring work for R410A pipe differs from that for R22 pipe. For details of flaring work, refer to Installation manual “FLARING WORK”.

3.Refrigerant oil

Apply the special refrigeration oil (accessories: packed with indoor unit) to the flare and the union seat surfaces.

4.Air purge

• Do not discharge the refrigerant into the atmosphere.

Take care not to discharge refrigerant into the atmosphere during installation, reinstallation, or repairs to the refrigerant

circuit.

• Use the vacuum pump for air purging for the purpose of environmental protection.

5.Additional charge

For additional charging, charge the refrigerant from liquid phase of the gas cylinder. If the refrigerant is charged from the gas phase, composition change may occur in the refrigerant inside the cylinder and the outdoor unit. In this case, ability of the refrigerating cycle decreases or normal operation can be impossible. However, charging the liquid refrigerant all at once may cause the compressor to be locked. Thus, charge the refrigerant slowly.

Page 5

Drainage hose

Piping

Air inlet

Air outlet

Drain outlet

(back and side)

Air outlet

(back and side)

PART NAMES AND FUNCTIONS

MU-GA50VB MU-GA60VB

MU-GA80VB

Page 6

Outdoor model

Function

Power supply

Capacity Dehumidification Air flow(High) Power outlet Running current Power input Power factor Starting current Compressor motor current Fan motor current

Model Output Winding resistance(at 20:) Model Winding resistance(at 20:) Dimensions WOHOD Weight Sound level(High) Fan speed(High) Fan speed regulator Refrigerant filling capacity(R410A) Refrigerating oil (Model)

r/h

K /h

A W %

rpm

kg cc

MU-GA50VB

Cooling

Single phase

230V, 50Hz

5.0

2.5

2,196

7.90

1,750

96 37

7.51

0.39

2.76

RN196VHSHT

1,300 C-R 1.80 C-S 3.00

RA6V50-PA WHT-BLK 79.5 BLK-RED 83.0

850o605o290

44 52

828

1.45

520 (NEO22)

MU-GA60VB

Cooling

Single phase

230V, 50Hz

6.5

3.4

2,322

10.82 2,420

97 74

10.27

0.55

2.62

NN29VBAHT

1,900 C-R 0.80 C-S 1.64

RA6V60-MA WHT-BLK 71 BLK-RED 89

850o605o290

60 53

873

2.00

1,200 (NEO22)

Electrical

data

Compressor

Fan

motor

Special

remarks

Coefficient of performance(C.O.P)

Capacity

SPECIFICATION

NOTE: Test conditions are based on ISO 5151.

Cooling : Indoor DB27°C WB19°C

Outdoor DB35°C WB(24°C)

Indoor-Outdoor piping length : 5m

Page 7

Outdoor model

Function

Power supply

Capacity Dehumidification Air flow(High/Low )

Capacity

Power outlet Running current Power input Power factor

Electrical

data

Starting current Compressor motor current Fan motor current

R/h

K /h

A W %

Coefficient of performance(C.O.P)

Model Output Winding resistance(at 20:)

Compressor

Model Winding

Fan

motor

resistance(at 20:) Dimensions WOHOD Weight Sound level(High/Low ) Fan speed(High/Low )

rpm Fan speed regulator Refrigerant filling capacity(R410A)

Special

remarks

Refrigerating oil (Model) Thermistor RT62(at 25:) Thermistor RT63(at 0:)

cc k" k"

NOTE: Test conditions are based on ISO 5151.

Cooling : Indoor DB27°C WB19°C

Outdoor DB35°C WB(24°C)

Indoor-Outdoor piping length : 5m

w Reference value

MU-GA80VB

Cooling

Single phase

230V, 50Hz

8.5

4.6

2,940/1,470

14.42 3,191

96 90

13.85

0.57

2.61

NN37VAAHT

2,500 C-R 0.64 C-S 1.63

RA6V75-AD

WHT-BLK 62.8 BLK-YLW 55.9

YLW-RED 26.0

840o850o330

55/53

805/435

2.40

1,300 (NEO 22)

231.44

33.18

Page 8

63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

BAND CENTER FREQUENCIES, Hz

Test conditions, Cooling : Dry-bulb temperature 35: Wet-bulb temperature 24:

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

SPL(dB(A)) LINE

High

FAN SPEED

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

BAND CENTER FREQUENCIES, Hz

Test conditions, Cooling : Dry-bulb temperature 35: Wet-bulb temperature 24:

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

SPL(dB(A)) LINE

High

FAN SPEED

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

OUTDOOR UNIT

MICROPHONE

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 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

Test conditions, Cooling : Dry-bulb temperature 35: Wet-bulb temperature 24:

SPL(dB(A)) LINE

High

FAN SPEED

NOISE CRITERIA CURVES

MU-GA50VB

MU-GA60VB

MU-GA80VB

Page 9

100mm or more

r m

ore

100mm or more

350mm or more

r m

Drainage 3holes [33

Air out

Air in

Service panel

Liquid refrigerant pipe joint

Refregerant pipe (flared) [6.35

Gas refregerant pipe joint

Refregerant pipe (flared) [12.7 (MU-GA50VB) [15.88 (MU-GA60VB)

35-

100

161

157

850

500

183

292

605

248

350

290

310

345

355

Drainage hole [16.2

35-

155

198

515

299

330

360

850

430

500

121

840

Open as a rule 500mm or more if the front and both sides are open

100mm or more 200mm or more if there are obstacles to both sides

Open as a rule 500mm or more if the back, both sides and top are open

350mm or more

100mm or more

Service panel

Gas refrigerant pipe joint Refrigerant pipe (flared) [15.88

Liquid refrigerant pipe joint Refrigerant pipe (flared) [9.52

OUTLINES AND DIMENSIONS

MU-GA50VB MU-GA60VB

Unit: mm

MU-GA80VB

Page 10

BRN

WHT WHT

POWER SUPPLY 230V 50Hz

~/N

TB1

CIRCUIT BREAKER

BLU

GRN/YLW

BRN

NO COM

52C

TB2

CONNECTING 12V

INDOOR UNIT

BLK

WHT

52C

WHT

ORN

RED

2 3

RED

BLK

ORN WHT

RED

DSAR

BLU

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. : Connector

: Terminal block

NOTES:

SYMBOL

C1 C2

DSAR

NAME COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER

SYMBOL

MC MF

TB1,TB2

NAME COMPRESSOR (INNER PROTECTOR) OUTDOOR FAN MOTOR (INNER PROTECTOR) TERMINAL BLOCK

SYMBOL

52C

NAME

COMPRESSOR CONTACTOR

TB1

RED

~/N 230V 50Hz

POWER SUPPLY

52C

GRN/YLW

CIRCUIT BREAKER

REDRED

WHT

BLU

ORN

WHT

BLK

1 2

ORN

COM

BLU

COM

52C

BLK

12V

INDOOR UNIT CONNECTING

BLK

BRN

WHT

TB2

DSAR

WHT

BLU

BRN

WHT

BRN

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. : Connector

: Terminal block

NOTES:

SYMBOL

C1 C2

DSAR

NAME COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER

SYMBOL

MC MF

TB1,TB2

NAME COMPRESSOR (INNER PROTECTOR) OUTDOOR FAN MOTOR (INNER PROTECTOR) TERMINAL BLOCK

SYMBOL

52C

NAME RELAY COMPRESSOR CONTACTOR

WIRING DIAGRAM

MU-GA50VB

MU-GA60VB

Page 11

MU-GA80VB

CIRCUIT BREAKER

TB1

L N

GRN/YLW

TB2

~ / N 230V 50Hz

POWER SUPPLY

12V

TO INDOOR UNIT CONNECTING

BRN

DSAR

BLU

BRN

BLU

DEICER P.C. BOARD

BRN

52C

WHT

RT62 RT63

CN662

X52

WHT

LEV

CN724

T61

A1 A2BLU

SR62 SR61

52C

WHT

YLW

BLK

YLW

BLK

123

NR61

WHT

3456

WHT

ORN

RED

CN711

X52

COM

F61

RED

ORN

TAB52

CN730

BLK

7 5 3 1

BLU

RED

BLU

SYMBOL

CZ C1 C2

DSAR

F61

LEV

NOTE 1. Use copper conductors only (For field wiring).

CZ SURGE ABSORBER COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER FUSE(3.15A) EXPANSION VALVE COIL

2. Since the indoor and outdoor unit connecting wires have polarity, connect them according to the numbers (3,N).

3. Symbols below indicate.

/: Terminal block, : Connector

NAME

SYMBOL

NR61

RT62 RT63

SR61

NAME NAME COMPRESSOR (INNER PROTECTOR) OUTDOOR FAN MOTOR (INNER PROTECTOR) VARISTOR DISCHARGE TEMPERATURE THERMIST OR AMBIENT TEMPERA TURE THERMIST OR SOLID STATE RELAY

SYMBOL

SR62

TB1 TB2 T61 X52 52C

SOLID STATE RELAY TERMINAL BLOCK TERMINAL BLOCK TRANSFORMER CONTACTOR COMPRESSOR CONTACTOR

Page 12

REFRIGERANT SYSTEM DIAGRAM

MU-GA50VB

Refrigerant pipe [12.7 (with heat insulator)

Flared connection

Stop valve (with service port)

Stop valve

Muffler

Compressor

Strainer

#100

Unit:mm

Outdoor heat exchanger

MU-GA60VB

Refrigerant pipe [6.35 (with heat insulator)

Refrigerant pipe [15.88 (with heat insulator)

Flared connection

Stop valve (with service port)

Muffler

Capillary tube

[3.0o[1.6o600

Muffler

#100

Outdoor heat exchanger

Compressor

Flared connection

Refrigerant pipe [6.35 (with heat insulator)

Stop valve

Capillary tube [3.0X[1.8X500

Refrigerant flow in cooling

Page 13

MU-GA80VB

Indoor unit

wMax. Height

difference: 10m(MS-GA50/GA60VB)/ 15m(MS-GA80VB)

Refrigerant Piping Max. Length

w Height difference should be within 10m(MS-GA50/GA60VB)/ 15m(MS-GA80VB) regardless of which unit, indoor or outdoor position is high.

Outdoor unit

Outdoor heat exchanger

Flared connection

Discharge temperature thermistor RT62

Flared connection

Stop valve

Stop valve (with service port)

Capillary tube [3.6✕[2.4✕50

Refrigerant flow in cooling

Compressor

Refrigerant pipe [15.88 (with heat insulator)

Refrigerant pipe [9.52 (with heat insulator)

LEV

Muffler

Strainer

Ambient temperature thermistor RT63

Capillary tube [4.0✕[2.4✕200 (Upper path)

Capillary tube [4.0✕[2.4✕100 (Lower path)

Model

Piping size O.D : mm

Refrigerant piping

Max. length : m

Gas

12.7

15.88

Liquid

6.35

9.52

MU-GA50VB

MU-GA60VB MU-GA80VB

Unit:mm

MAX. REFRIGERANT PIPING LENGTH

MAX. HEIGHT DIFFERENCE

Page 14

Model

MU-GA50VB

Refrigerant piping length (one way)

Outdoor unit precharged

1,450

15m 160

20m

260

25m

360

10m

ADDITIONAL REFRIGERANT CHARGE(R410A : g)

Model

MU-GA60VB

Refrigerant piping length (one way)

Outdoor unit precharged

2,000

15m 160

20m

260

25m

360

10m

Outdoor unit

precharged

2,400

0 165 440 715 990 1,165

Refrigerant piping length (one way)

15m10m7m

20m

25m 30m

Model

MU-GA80VB

Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)

Calculation : Xg=55g/mo(Refrigerant piping length(m)-7)

Page 15

11.6

10.5

7.5

8.5

9.5

12.8

16.3

10.2

13.1

11.6

14.6

18.0

17.4

13.9

12.4

10.8

15.6

19.2

MU-GA50VB

MS-GA60VB

MS-GA50VB

MU-GA60VB

MS-GA80VB

MU-GA80VB

Wet and dry-bulb thermometers

PERFORMANCE CURVES

MU-GA50VB MU-GA60VB MU-GA80VB

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

198 ~ 264V, 50Hz

(2) AIR FLOW

Air flow should be set at MAX.

(3) MAIN READINGS

(1) Indoor intake air wet-bulb temperature : °CWB (2) Indoor outlet air wet-bulb temperature : °CWB (3) Outdoor intake air dry-bulb temperature : °CDB (4) Total input: W

Indoor air wet/dry-bulb temperature difference on the left side of the chart on this page 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 to start the EMERGENCY COOL 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.

}

Cooling

INDOOR UNIT

OUTDOOR UNIT

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT COOL operation

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

Dry-bulb temperature

20 25 30 70

Relative humidity(%)

50 60

Page 16

70(%)

230V

15 20

25 60

30 35

0.6

0.7

0.8

0.9

1.0

1.1

(:)

70(%)

230V

15 20

25 60

30 35

(:)

70(%)

230V

15 20

25 60

30 35

0.7

0.8

0.9

1.0

1.1

1.2

(:)

15 20

25 60

30 70(%)

35(:)

18 32

230V

70(%)

230V

15 20

25 60

30 35

0.6

0.7

0.8

0.9

1.0

1.1

(:)

15 20

25 60

30 70(%)

35(:)

18 32

230V

Air flow should be set at MAX.

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/ff[Gauge])

MU-GA50VB

(kgf/F[Gauge])(MPa[Gauge])

Outdoor low pressure

MU-GA60VB

(kgf/F[Gauge])(MPa[Gauge])

Outdoor low pressure

Ambient temperature(˚C) Ambient humidity(%)

Outdoor unit current (A)

Ambient temperature(˚C) Ambient humidity(%)

Outdoor unit current (A)

Ambient temperature(˚C) Ambient humidity(%)

MU-GA80VB

(kgf/F[Gauge])(MPa[Gauge])

Outdoor low pressure

Ambient temperature(˚C) Ambient humidity(%)

Outdoor unit current(A)

Ambient temperature(˚C) Ambient humidity(%)

Page 17

21 18 5.88 2.76 0.47 1448 5.63 2.64 0.47 1520 5.40 2.54 0.47 1593 5.20 2.44 0.47 1665 21 20 6.13 2.14 0.35 1520 5.88 2.06 0.35 1611 5.70 2.00 0.35 1647 5.50 1.93 0.35 1720 22 18 5.88 3.00 0.51 1448 5.63 2.87 0.51 1520 5.40 2.75 0.51 1593 5.20 2.65 0.51 1665 22 20 6.13 2.39 0.39 1520 5.88 2.29 0.39 1611 5.70 2.22 0.39 1647 5.50 2.15 0.39 1720 22 22 6.38 1.72 0.27 1575 6.15 1.66 0.27 1674 6.00 1.62 0.27 1720 5.75 1.55 0.27 1792 23 18 5.88 3.23 0.55 1448 5.63 3.09 0.55 1520 5.40 2.97 0.55 1593 5.20 2.86 0.55 1665 23 20 6.13 2.63 0.43 1520 5.88 2.53 0.43 1611 5.70 2.45 0.43 1647 5.50 2.37 0.43 1720 23 22 6.38 1.98 0.31 1575 6.15 1.91 0.31 1674 6.00 1.86 0.31 1720 5.75 1.78 0.31 1792 24 18 5.88 3.47 0.59 1448 5.63 3.32 0.59 1520 5.40 3.19 0.59 1593 5.20 3.07 0.59 1665 24 20 6.13 2.88 0.47 1520 5.88 2.76 0.47 1611 5.70 2.68 0.47 1647 5.50 2.59 0.47 1720 24 22 6.38 2.23 0.35 1575 6.15 2.15 0.35 1674 6.00 2.10 0.35 1720 5.75 2.01 0.35 1792 24 24 6.70 1.54 0.23 1647 6.45 1.48 0.23 1738 6.30 1.45 0.23 1792 6.10 1.40 0.23 1882 25 18 5.88 3.70 0.63 1448 5.63 3.54 0.63 1520 5.40 3.40 0.63 1593 5.20 3.28 0.63 1665 25 20 6.13 3.12 0.51 1520 5.88 3.00 0.51 1611 5.70 2.91 0.51 1647 5.50 2.81 0.51 1720 25 22 6.38 2.49 0.39 1575 6.15 2.40 0.39 1674 6.00 2.34 0.39 1720 5.75 2.24 0.39 1792 25 24 6.70 1.81 0.27 1647 6.45 1.74 0.27 1738 6.30 1.70 0.27 1792 6.10 1.65 0.27 1882 26 18 5.88 3.94 0.67 1448 5.63 3.77 0.67 1520 5.40 3.62 0.67 1593 5.20 3.48 0.67 1665 26 20 6.13 3.37 0.55 1520 5.88 3.23 0.55 1611 5.70 3.14 0.55 1647 5.50 3.03 0.55 1720 26 22 6.38 2.74 0.43 1575 6.15 2.64 0.43 1674 6.00 2.58 0.43 1720 5.75 2.47 0.43 1792 26 24 6.70 2.08 0.31 1647 6.45 2.00 0.31 1738 6.30 1.95 0.31 1792 6.10 1.89 0.31 1882 26 26 6.90 1.31 0.19 1738 6.70 1.27 0.19 1828 6.60 1.25 0.19 1882 6.40 1.22 0.19 1937 27 18 5.88 4.17 0.71 1448 5.63 3.99 0.71 1520 5.40 3.83 0.71 1593 5.20 3.69 0.71 1665 27 20 6.13 3.61 0.59 1520 5.88 3.47 0.59 1611 5.70 3.36 0.59 1647 5.50 3.25 0.59 1720 27 22 6.38 3.00 0.47 1575 6.15 2.89 0.47 1674 6.00 2.82 0.47 1720 5.75 2.70 0.47 1792 27 24 6.70 2.35 0.35 1647 6.45 2.26 0.35 1738 6.30 2.21 0.35 1792 6.10 2.14 0.35 1882 27 26 6.90 1.59 0.23 1738 6.70 1.54 0.23 1828 6.60 1.52 0.23 1882 6.40 1.47 0.23 1937 28 18 5.88 4.41 0.75 1448 5.63 4.22 0.75 1520 5.40 4.05 0.75 1593 5.20 3.90 0.75 1665 28 20 6.13 3.86 0.63 1520 5.88 3.70 0.63 1611 5.70 3.59 0.63 1647 5.50 3.47 0.63 1720 28 22 6.38 3.25 0.51 1575 6.15 3.14 0.51 1674 6.00 3.06 0.51 1720 5.75 2.93 0.51 1792 28 24 6.70 2.61 0.39 1647 6.45 2.52 0.39 1738 6.30 2.46 0.39 1792 6.10 2.38 0.39 1882 28 26 6.90 1.86 0.27 1738 6.70 1.81 0.27 1828 6.60 1.78 0.27 1882 6.40 1.73 0.27 1937 29 18 5.88 4.64 0.79 1448 5.63 4.44 0.79 1520 5.40 4.27 0.79 1593 5.20 4.11 0.79 1665 29 20 6.13 4.10 0.67 1520 5.88 3.94 0.67 1611 5.70 3.82 0.67 1647 5.50 3.69 0.67 1720 29 22 6.38 3.51 0.55 1575 6.15 3.38 0.55 1674 6.00 3.30 0.55 1720 5.75 3.16 0.55 1792 29 24 6.70 2.88 0.43 1647 6.45 2.77 0.43 1738 6.30 2.71 0.43 1792 6.10 2.62 0.43 1882 29 26 6.90 2.14 0.31 1738 6.70 2.08 0.31 1828 6.60 2.05 0.31 1882 6.40 1.98 0.31 1937 30 18 5.88 4.88 0.83 1448 5.63 4.67 0.83 1520 5.40 4.48 0.83 1593 5.20 4.32 0.83 1665 30 20 6.13 4.35 0.71 1520 5.88 4.17 0.71 1611 5.70 4.05 0.71 1647 5.50 3.91 0.71 1720 30 22 6.38 3.76 0.59 1575 6.15 3.63 0.59 1674 6.00 3.54 0.59 1720 5.75 3.39 0.59 1792 30 24 6.70 3.15 0.47 1647 6.45 3.03 0.47 1738 6.30 2.96 0.47 1792 6.10 2.87 0.47 1882 30 26 6.90 2.42 0.35 1738 6.70 2.35 0.35 1828 6.60 2.31 0.35 1882 6.40 2.24 0.35 1937 31 18 5.88 5.11 0.87 1448 5.63 4.89 0.87 1520 5.40 4.70 0.87 1593 5.20 4.52 0.87 1665 31 20 6.13 4.59 0.75 1520 5.88 4.41 0.75 1611 5.70 4.28 0.75 1647 5.50 4.13 0.75 1720 31 22 6.38 4.02 0.63 1575 6.15 3.87 0.63 1674 6.00 3.78 0.63 1720 5.75 3.62 0.63 1792 31 24 6.70 3.42 0.51 1647 6.45 3.29 0.51 1738 6.30 3.21 0.51 1792 6.10 3.11 0.51 1882 31 26 6.90 2.69 0.39 1738 6.70 2.61 0.39 1828 6.60 2.57 0.39 1882 6.40 2.50 0.39 1937 32 18 5.88 5.35 0.91 1448 5.63 5.12 0.91 1520 5.40 4.91 0.91 1593 5.20 4.73 0.91 1665 32 20 6.13 4.84 0.79 1520 5.88 4.64 0.79 1611 5.70 4.50 0.79 1647 5.50 4.35 0.79 1720 32 22 6.38 4.27 0.67 1575 6.15 4.12 0.67 1674 6.00 4.02 0.67 1720 5.75 3.85 0.67 1792 32 24 6.70 3.69 0.55 1647 6.45 3.55 0.55 1738 6.30 3.47 0.55 1792 6.10 3.36 0.55 1882 32 26 6.90 2.97 0.43 1738 6.70 2.88 0.43 1828 6.60 2.84 0.43 1882 6.40 2.75 0.43 1937

INDOOR

DB(:)

INDOOR

WB(:)

OUTDOOR DB(:)

21 2725

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT30Q SHC SHF INPUT

CAPACITY : 5.0(kW) SHF : 0.65 INPUT : 1810(W)

PERFORMANCE DATA COOL operation

MS-GA50VB : MU-GA50VB (230V)

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature

SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

Page 18

21 18 4.90 2.30 0.47 1774 4.50 2.12 0.47 1882 4.33 2.03 0.47 1919 21 20 5.15 1.80 0.35 1846 4.80 1.68 0.35 1937 4.63 1.62 0.35 1991 22 18 4.90 2.50 0.51 1774 4.50 2.30 0.51 1882 4.33 2.21 0.51 1919 22 20 5.15 2.01 0.39 1846 4.80 1.87 0.39 1937 4.63 1.80 0.39 1991 22 22 5.45 1.47 0.27 1919 5.10 1.38 0.27 2027 4.93 1.33 0.27 2063 23 18 4.90 2.70 0.55 1774 4.50 2.48 0.55 1882 4.33 2.38 0.55 1919 23 20 5.15 2.21 0.43 1846 4.80 2.06 0.43 1937 4.63 1.99 0.43 1991 23 22 5.45 1.69 0.31 1919 5.10 1.58 0.31 2027 4.93 1.53 0.31 2063 24 18 4.90 2.89 0.59 1774 4.50 2.66 0.59 1882 4.33 2.55 0.59 1919 24 20 5.15 2.42 0.47 1846 4.80 2.26 0.47 1937 4.63 2.17 0.47 1991 24 22 5.45 1.91 0.35 1919 5.10 1.79 0.35 2027 4.93 1.72 0.35 2063 24 24 5.75 1.32 0.23 1991 5.40 1.24 0.23 2082 5.25 1.21 0.23 2127 25 18 4.90 3.09 0.63 1774 4.50 2.84 0.63 1882 4.33 2.72 0.63 1919 25 20 5.15 2.63 0.51 1846 4.80 2.45 0.51 1937 4.63 2.36 0.51 1991 25 22 5.45 2.13 0.39 1919 5.10 1.99 0.39 2027 4.93 1.92 0.39 2063 25 24 5.75 1.55 0.27 1991 5.40 1.46 0.27 2082 5.25 1.42 0.27 2127 26 18 4.90 3.28 0.67 1774 4.50 3.02 0.67 1882 4.33 2.90 0.67 1919 26 20 5.15 2.83 0.55 1846 4.80 2.64 0.55 1937 4.63 2.54 0.55 1991 26 22 5.45 2.34 0.43 1919 5.10 2.19 0.43 2027 4.93 2.12 0.43 2063 26 24 5.75 1.78 0.31 1991 5.40 1.67 0.31 2082 5.25 1.63 0.31 2127 26 26 6.05 1.15 0.19 2063 5.70 1.08 0.19 2154 5.53 1.05 0.19 2199 27 18 4.90 3.48 0.71 1774 4.50 3.20 0.71 1882 4.33 3.07 0.71 1919 27 20 5.15 3.04 0.59 1846 4.80 2.83 0.59 1937 4.63 2.73 0.59 1991 27 22 5.45 2.56 0.47 1919 5.10 2.40 0.47 2027 4.93 2.31 0.47 2063 27 24 5.75 2.01 0.35 1991 5.40 1.89 0.35 2082 5.25 1.84 0.35 2127 27 26 6.05 1.39 0.23 2063 5.70 1.31 0.23 2154 5.53 1.27 0.23 2199 28 18 4.90 3.68 0.75 1774 4.50 3.38 0.75 1882 4.33 3.24 0.75 1919 28 20 5.15 3.24 0.63 1846 4.80 3.02 0.63 1937 4.63 2.91 0.63 1991 28 22 5.45 2.78 0.51 1919 5.10 2.60 0.51 2027 4.93 2.51 0.51 2063 28 24 5.75 2.24 0.39 1991 5.40 2.11 0.39 2082 5.25 2.05 0.39 2127 28 26 6.05 1.63 0.27 2063 5.70 1.54 0.27 2154 5.53 1.49 0.27 2199 29 18 4.90 3.87 0.79 1774 4.50 3.56 0.79 1882 4.33 3.42 0.79 1919 29 20 5.15 3.45 0.67 1846 4.80 3.22 0.67 1937 4.63 3.10 0.67 1991 29 22 5.45 3.00 0.55 1919 5.10 2.81 0.55 2027 4.93 2.71 0.55 2063 29 24 5.75 2.47 0.43 1991 5.40 2.32 0.43 2082 5.25 2.26 0.43 2127 29 26 6.05 1.88 0.31 2063 5.70 1.77 0.31 2154 5.53 1.71 0.31 2199 30 18 4.90 4.07 0.83 1774 4.50 3.74 0.83 1882 4.33 3.59 0.83 1919 30 20 5.15 3.66 0.71 1846 4.80 3.41 0.71 1937 4.63 3.28 0.71 1991 30 22 5.45 3.22 0.59 1919 5.10 3.01 0.59 2027 4.93 2.91 0.59 2063 30 24 5.75 2.70 0.47 1991 5.40 2.54 0.47 2082 5.25 2.47 0.47 2127 30 26 6.05 2.12 0.35 2063 5.70 2.00 0.35 2154 5.53 1.93 0.35 2199 31 18 4.90 4.26 0.87 1774 4.50 3.92 0.87 1882 4.33 3.76 0.87 1919 31 20 5.15 3.86 0.75 1846 4.80 3.60 0.75 1937 4.63 3.47 0.75 1991 31 22 5.45 3.43 0.63 1919 5.10 3.21 0.63 2027 4.93 3.10 0.63 2063 31 24 5.75 2.93 0.51 1991 5.40 2.75 0.51 2082 5.25 2.68 0.51 2127 31 26 6.05 2.36 0.39 2063 5.70 2.22 0.39 2154 5.53 2.15 0.39 2199 32 18 4.90 4.46 0.91 1774 4.50 4.10 0.91 1882 4.33 3.94 0.91 1919 32 20 5.15 4.07 0.79 1846 4.80 3.79 0.79 1937 4.63 3.65 0.79 1991 32 22 5.45 3.65 0.67 1919 5.10 3.42 0.67 2027 4.93 3.30 0.67 2063 32 24 5.75 3.16 0.55 1991 5.40 2.97 0.55 2082 5.25 2.89 0.55 2127 32 26 6.05 2.60 0.43 2063 5.70 2.45 0.43 2154 5.53 2.38 0.43 2199

INDOOR

DB(:)

INDOOR

WB(:)

OUTDOOR DB(:)

35 4340

Q SHC SHF INPUT

SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 5.0(kW) SHF : 0.65 INPUT : 1810(W)

PERFORMANCE DATA COOL operation

MS-GA50VB : MU-GA50VB (230V)

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature

SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

Page 19

2282 2356 2282 2356 2455 2282 2356 2455 2282 2356 2455 2579 2282 2356 2455 2579 2282 2356 2455 2579 2654 2282 2356 2455 2579 2654 2282 2356 2455 2579 2654 2282 2356 2455 2579 2654 2282 2356 2455 2579 2654 2282 2356 2455 2579 2654 2282 2356 2455 2579 2654

21 18 7.64 3.44 0.45 1984 7.31 3.29 0.45 2083 7.02 3.16 0.45 2182 6.76 3.04 0.45 21 20 7.96 2.63 0.33 2083 7.64 2.52 0.33 2207 7.41 2.45 0.33 2257 7.15 2.36 0.33 22 18 7.64 3.74 0.49 1984 7.31 3.58 0.49 2083 7.02 3.44 0.49 2182 6.76 3.31 0.49 22 20 7.96 2.95 0.37 2083 7.64 2.83 0.37 2207 7.41 2.74 0.37 2257 7.15 2.65 0.37 22 22 8.29 2.07 0.25 2158 8.00 2.00 0.25 2294 7.80 1.95 0.25 2356 7.48 1.87 0.25 23 18 7.64 4.05 0.53 1984 7.31 3.88 0.53 2083 7.02 3.72 0.53 2182 6.76 3.58 0.53 23 20 7.96 3.26 0.41 2083 7.64 3.13 0.41 2207 7.41 3.04 0.41 2257 7.15 2.93 0.41 23 22 8.29 2.40 0.29 2158 8.00 2.32 0.29 2294 7.80 2.26 0.29 2356 7.48 2.17 0.29 24 18 7.64 4.35 0.57 1984 7.31 4.17 0.57 2083 7.02 4.00 0.57 2182 6.76 3.85 0.57 24 20 7.96 3.58 0.45 2083 7.64 3.44 0.45 2207 7.41 3.33 0.45 2257 7.15 3.22 0.45 24 22 8.29 2.73 0.33 2158 8.00 2.64 0.33 2294 7.80 2.57 0.33 2356 7.48 2.47 0.33 24 24 8.71 1.83 0.21 2257 8.39 1.76 0.21 2381 8.19 1.72 0.21 2455 7.93 1.67 0.21 25 18 7.64 4.66 0.61 1984 7.31 4.46 0.61 2083 7.02 4.28 0.61 2182 6.76 4.12 0.61 25 20 7.96 3.90 0.49 2083 7.64 3.74 0.49 2207 7.41 3.63 0.49 2257 7.15 3.50 0.49 25 22 8.29 3.07 0.37 2158 8.00 2.96 0.37 2294 7.80 2.89 0.37 2356 7.48 2.77 0.37 25 24 8.71 2.18 0.25 2257 8.39 2.10 0.25 2381 8.19 2.05 0.25 2455 7.93 1.98 0.25 26 18 7.64 4.96 0.65 1984 7.31 4.75 0.65 2083 7.02 4.56 0.65 2182 6.76 4.39 0.65 26 20 7.96 4.22 0.53 2083 7.64 4.05 0.53 2207 7.41 3.93 0.53 2257 7.15 3.79 0.53 26 22 8.29 3.40 0.41 2158 8.00 3.28 0.41 2294 7.80 3.20 0.41 2356 7.48 3.06 0.41 26 24 8.71 2.53 0.29 2257 8.39 2.43 0.29 2381 8.19 2.38 0.29 2455 7.93 2.30 0.29 26 26 8.97 1.52 0.17 2381 8.71 1.48 0.17 2505 8.58 1.46 0.17 2579 8.32 1.41 0.17 27 18 7.64 5.27 0.69 1984 7.31 5.05 0.69 2083 7.02 4.84 0.69 2182 6.76 4.66 0.69 27 20 7.96 4.54 0.57 2083 7.64 4.35 0.57 2207 7.41 4.22 0.57 2257 7.15 4.08 0.57 27 22 8.29 3.73 0.45 2158 8.00 3.60 0.45 2294 7.80 3.51 0.45 2356 7.48 3.36 0.45 27 24 8.71 2.87 0.33 2257 8.39 2.77 0.33 2381 8.19 2.70 0.33 2455 7.93 2.62 0.33 27 26 8.97 1.88 0.21 2381 8.71 1.83 0.21 2505 8.58 1.80 0.21 2579 8.32 1.75 0.21 28 18 7.64 5.58 0.73 1984 7.31 5.34 0.73 2083 7.02 5.12 0.73 2182 6.76 4.93 0.73 28 20 7.96 4.86 0.61 2083 7.64 4.66 0.61 2207 7.41 4.52 0.61 2257 7.15 4.36 0.61 28 22 8.29 4.06 0.49 2158 8.00 3.92 0.49 2294 7.80 3.82 0.49 2356 7.48 3.66 0.49 28 24 8.71 3.22 0.37 2257 8.39 3.10 0.37 2381 8.19 3.03 0.37 2455 7.93 2.93 0.37 28 26 8.97 2.24 0.25 2381 8.71 2.18 0.25 2505 8.58 2.15 0.25 2579 8.32 2.08 0.25 29 18 7.64 5.88 0.77 1984 7.31 5.63 0.77 2083 7.02 5.41 0.77 2182 6.76 5.21 0.77 29 20 7.96 5.18 0.65 2083 7.64 4.96 0.65 2207 7.41 4.82 0.65 2257 7.15 4.65 0.65 29 22 8.29 4.39 0.53 2158 8.00 4.24 0.53 2294 7.80 4.13 0.53 2356 7.48 3.96 0.53 29 24 8.71 3.57 0.41 2257 8.39 3.44 0.41 2381 8.19 3.36 0.41 2455 7.93 3.25 0.41 29 26 8.97 2.60 0.29 2381 8.71 2.53 0.29 2505 8.58 2.49 0.29 2579 8.32 2.41 0.29 30 18 7.64 6.19 0.81 1984 7.31 5.92 0.81 2083 7.02 5.69 0.81 2182 6.76 5.48 0.81 30 20 7.96 5.49 0.69 2083 7.64 5.27 0.69 2207 7.41 5.11 0.69 2257 7.15 4.93 0.69 30 22 8.29 4.72 0.57 2158 8.00 4.56 0.57 2294 7.80 4.45 0.57 2356 7.48 4.26 0.57 30 24 8.71 3.92 0.45 2257 8.39 3.77 0.45 2381 8.19 3.69 0.45 2455 7.93 3.57 0.45 30 26 8.97 2.96 0.33 2381 8.71 2.87 0.33 2505 8.58 2.83 0.33 2579 8.32 2.75 0.33 31 18 7.64 6.49 0.85 1984 7.31 6.22 0.85 2083 7.02 5.97 0.85 2182 6.76 5.75 0.85 31 20 7.96 5.81 0.73 2083 7.64 5.58 0.73 2207 7.41 5.41 0.73 2257 7.15 5.22 0.73 31 22 8.29 5.06 0.61 2158 8.00 4.88 0.61 2294 7.80 4.76 0.61 2356 7.48 4.56 0.61 31 24 8.71 4.27 0.49 2257 8.39 4.11 0.49 2381 8.19 4.01 0.49 2455 7.93 3.89 0.49 31 26 8.97 3.32 0.37 2381 8.71 3.22 0.37 2505 8.58 3.17 0.37 2579 8.32 3.08 0.37 32 18 7.64 6.80 0.89 1984 7.31 6.51 0.89 2083 7.02 6.25 0.89 2182 6.76 6.02 0.89 32 20 7.96 6.13 0.77 2083 7.64 5.88 0.77 2207 7.41 5.71 0.77 2257 7.15 5.51 0.77 32 22 8.29 5.39 0.65 2158 8.00 5.20 0.65 2294 7.80 5.07 0.65 2356 7.48 4.86 0.65 32 24 8.71 4.62 0.53 2257 8.39 4.44 0.53 2381 8.19 4.34 0.53 2455 7.93 4.20 0.53 32 26 8.97 3.68 0.41 2381 8.71 3.57 0.41 2505 8.58 3.52 0.41 2579 8.32 3.41 0.41

INDOOR

DB(:)

INDOOR

WB(:)

OUTDOOR DB(:)

21 2725

Q SHC SHF INPUT Q

SHC

SHF INPUT Q SHC SHF INPUT30Q SHC SHF INPUT

CAPACITY : 6.5(kW) SHF : 0.63 INPUT : 2480(W)

PERFORMANCE DATA COOL operation

MS-GA60VB : MU-GA60VB (230V)

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature

SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

Page 20

21 18 6.37 2.87 0.45 2430 5.85 2.63 0.45 2579 5.62 2.53 0.45 2629 21 20 6.70 2.21 0.33 2530 6.24 2.06 0.33 2654 6.01 1.98 0.33 2728 22 18 6.37 3.12 0.49 2430 5.85 2.87 0.49 2579 5.62 2.76 0.49 2629 22 20 6.70 2.48 0.37 2530 6.24 2.31 0.37 2654 6.01 2.22 0.37 2728 22 22 7.09 1.77 0.25 2629 6.63 1.66 0.25 2778 6.40 1.60 0.25 2827 23 18 6.37 3.38 0.53 2430 5.85 3.10 0.53 2579 5.62 2.98 0.53 2629 23 20 6.70 2.74 0.41 2530 6.24 2.56 0.41 2654 6.01 2.47 0.41 2728 23 22 7.09 2.05 0.29 2629 6.63 1.92 0.29 2778 6.40 1.86 0.29 2827 24 18 6.37 3.63 0.57 2430 5.85 3.33 0.57 2579 5.62 3.20 0.57 2629 24 20 6.70 3.01 0.45 2530 6.24 2.81 0.45 2654 6.01 2.71 0.45 2728 24 22 7.09 2.34 0.33 2629 6.63 2.19 0.33 2778 6.40 2.11 0.33 2827 24 24 7.48 1.57 0.21 2728 7.02 1.47 0.21 2852 6.83 1.43 0.21 2914 25 18 6.37 3.89 0.61 2430 5.85 3.57 0.61 2579 5.62 3.43 0.61 2629 25 20 6.70 3.28 0.49 2530 6.24 3.06 0.49 2654 6.01 2.95 0.49 2728 25 22 7.09 2.62 0.37 2629 6.63 2.45 0.37 2778 6.40 2.37 0.37 2827 25 24 7.48 1.87 0.25 2728 7.02 1.76 0.25 2852 6.83 1.71 0.25 2914 26 18 6.37 4.14 0.65 2430 5.85 3.80 0.65 2579 5.62 3.65 0.65 2629 26 20 6.70 3.55 0.53 2530 6.24 3.31 0.53 2654 6.01 3.19 0.53 2728 26 22 7.09 2.90 0.41 2629 6.63 2.72 0.41 2778 6.40 2.63 0.41 2827 26 24 7.48 2.17 0.29 2728 7.02 2.04 0.29 2852 6.83 1.98 0.29 2914 26 26 7.87 1.34 0.17 2827 7.41 1.26 0.17 2951 7.18 1.22 0.17 3013 27 18 6.37 4.40 0.69 2430 5.85 4.04 0.69 2579 5.62 3.88 0.69 2629 27 20 6.70 3.82 0.57 2530 6.24 3.56 0.57 2654 6.01 3.43 0.57 2728 27 22 7.09 3.19 0.45 2629 6.63 2.98 0.45 2778 6.40 2.88 0.45 2827 27 24 7.48 2.47 0.33 2728 7.02 2.32 0.33 2852 6.83 2.25 0.33 2914 27 26 7.87 1.65 0.21 2827 7.41 1.56 0.21 2951 7.18 1.51 0.21 3013 28 18 6.37 4.65 0.73 2430 5.85 4.27 0.73 2579 5.62 4.10 0.73 2629 28 20 6.70 4.08 0.61 2530 6.24 3.81 0.61 2654 6.01 3.67 0.61 2728 28 22 7.09 3.47 0.49 2629 6.63 3.25 0.49 2778 6.40 3.14 0.49 2827 28 24 7.48 2.77 0.37 2728 7.02 2.60 0.37 2852 6.83 2.53 0.37 2914 28 26 7.87 1.97 0.25 2827 7.41 1.85 0.25 2951 7.18 1.80 0.25 3013 29 18 6.37 4.90 0.77 2430 5.85 4.50 0.77 2579 5.62 4.33 0.77 2629 29 20 6.70 4.35 0.65 2530 6.24 4.06 0.65 2654 6.01 3.91 0.65 2728 29 22 7.09 3.76 0.53 2629 6.63 3.51 0.53 2778 6.40 3.39 0.53 2827 29 24 7.48 3.06 0.41 2728 7.02 2.88 0.41 2852 6.83 2.80 0.41 2914 29 26 7.87 2.28 0.29 2827 7.41 2.15 0.29 2951 7.18 2.08 0.29 3013 30 18 6.37 5.16 0.81 2430 5.85 4.74 0.81 2579 5.62 4.55 0.81 2629 30 20 6.70 4.62 0.69 2530 6.24 4.31 0.69 2654 6.01 4.15 0.69 2728 30 22 7.09 4.04 0.57 2629 6.63 3.78 0.57 2778 6.40 3.65 0.57 2827 30 24 7.48 3.36 0.45 2728 7.02 3.16 0.45 2852 6.83 3.07 0.45 2914 30 26 7.87 2.60 0.33 2827 7.41 2.45 0.33 2951 7.18 2.37 0.33 3013 31 18 6.37 5.41 0.85 2430 5.85 4.97 0.85 2579 5.62 4.78 0.85 2629 31 20 6.70 4.89 0.73 2530 6.24 4.56 0.73 2654 6.01 4.39 0.73 2728 31 22 7.09 4.32 0.61 2629 6.63 4.04 0.61 2778 6.40 3.91 0.61 2827 31 24 7.48 3.66 0.49 2728 7.02 3.44 0.49 2852 6.83 3.34 0.49 2914 31 26 7.87 2.91 0.37 2827 7.41 2.74 0.37 2951 7.18 2.66 0.37 3013 32 18 6.37 5.67 0.89 2430 5.85 5.21 0.89 2579 5.62 5.00 0.89 2629 32 20 6.70 5.16 0.77 2530 6.24 4.80 0.77 2654 6.01 4.63 0.77 2728 32 22 7.09 4.61 0.65 2629 6.63 4.31 0.65 2778 6.40 4.16 0.65 2827 32 24 7.48 3.96 0.53 2728 7.02 3.72 0.53 2852 6.83 3.62 0.53 2914 32 26 7.87 3.22 0.41 2827 7.41 3.04 0.41 2951 7.18 2.94 0.41 3013

INDOOR

DB(:)

INDOOR

WB(:)

OUTDOOR DB(:)

35 4340

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

CAPACITY : 6.5(kW) SHF : 0.63 INPUT : 2480(W)

PERFORMANCE DATA COOL operation

MS-GA60VB : MU-GA60VB (230V)

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature

SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

Page 21

PERFORMANCE DATA COOL operation

MS-GA80VB : MU-GA80VB (230V)

CAPACITY : 8.5(kW) SHF : 0.62 INPUT : 3260(W)

INDOOR

DB(:)

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature

INDOOR

WB(:) 21 18 9.99 2608 9.56 4.21 0.44 2738 9.18 4.04 0.44 2869 8.84 3.89 0.44 2999 21 20 10.41 2738 9.99 3.20 0.32 2901 9.69 3.10 0.32 2967 9.35 2.99 0.32 3097 22 18 9.99 2608 9.56 4.59 0.48 2738 9.18 4.41 0.48 2869 8.84 4.24 0.48 2999 22 20 10.41 2738 9.99 3.60 0.36 2901 9.69 3.49 0.36 2967 9.35 3.37 0.36 3097 22 22 10.84 2836 10.46 2.51 0.24 3016 10.20 2.45 0.24 3097 9.78 2.35 0.24 3227 23 18 9.99 2608 9.56 4.97 0.52 2738 9.18 4.77 0.52 2869 8.84 4.60 0.52 2999 23 20 10.41 2738 9.99 4.00 0.40 2901 9.69 3.88 0.40 2967 9.35 3.74 0.40 3097 23 22 10.84 2836 10.46 2.93 0.28 3016 10.20 2.86 0.28 3097 9.78 2.74 0.28 3227 24 18 9.99 2608 9.56 5.36 0.56 2738 9.18 5.14 0.56 2869 8.84 4.95 0.56 2999 24 20 10.41 2738 9.99 4.39 0.44 2901 9.69 4.26 0.44 2967 9.35 4.11 0.44 3097 24 22 10.84 2836 10.46 3.35 0.32 3016 10.20 3.26 0.32 3097 9.78 3.13 0.32 3227 24 24 11.39 2967 10.97 2.19 0.20 3130 10.71 2.14 0.20 3227 10.37 2.07 0.20 3390 25 18 9.99 2608 9.56 5.74 0.60 2738 9.18 5.51 0.60 2869 8.84 5.30 0.60 2999 25 20 10.41 2738 9.99 4.79 0.48 2901 9.69 4.65 0.48 2967 9.35 4.49 0.48 3097 25 22 10.84 2836 10.46 3.76 0.36 3016 10.20 3.67 0.36 3097 9.78 3.52 0.36 3227 25 24 11.39 2967 10.97 2.63 0.24 3130 10.71 2.57 0.24 3227 10.37 2.49 0.24 3390 26 18 9.99 2608 9.56 6.12 0.64 2738 9.18 5.88 0.64 2869 8.84 5.66 0.64 2999 26 20 10.41 2738 9.99 5.19 0.52 2901 9.69 5.04 0.52 2967 9.35 4.86 0.52 3097 26 22 10.84 2836 10.46 4.18 0.40 3016 10.20 4.08 0.40 3097 9.78 3.91 0.40 3227 26 24 11.39 2967 10.97 3.07 0.28 3130 10.71 3.00 0.28 3227 10.37 2.90 0.28 3390 26 26 11.73 3130 11.39 1.82 0.16 3293 11.22 1.80 0.16 3390 10.88 1.74 0.16 3488 27 18 9.99 2608 9.56 6.50 0.68 2738 9.18 6.24 0.68 2869 8.84 6.01 0.68 2999 27 20 10.41 2738 9.99 5.59 0.56 2901 9.69 5.43 0.56 2967 9.35 5.24 0.56 3097 27 22 10.84 2836 10.46 4.60 0.44 3016 10.20 4.49 0.44 3097 9.78 4.30 0.44 3227 27 24 11.39 2967 10.97 3.51 0.32 3130 10.71 3.43 0.32 3227 10.37 3.32 0.32 3390 27 26 11.73 3130 11.39 2.28 0.20 3293 11.22 2.24 0.20 3390 10.88 2.18 0.20 3488 28 18 9.99 2608 9.56 6.89 0.72 2738 9.18 6.61 0.72 2869 8.84 6.36 0.72 2999 28 20 10.41 2738 9.99 5.99 0.60 2901 9.69 5.81 0.60 2967 9.35 5.61 0.60 3097 28 22 10.84 2836 10.46 5.02 0.48 3016 10.20 4.90 0.48 3097 9.78 4.69 0.48 3227 28 24 11.39 2967 10.97 3.95 0.36 3130 10.71 3.86 0.36 3227 10.37 3.73 0.36 3390 28 26 11.73 3130 11.39 2.73 0.24 3293 11.22 2.69 0.24 3390 10.88 2.61 0.24 3488 29 18 9.99 2608 9.56 7.27 0.76 2738 9.18 6.98 0.76 2869 8.84 6.72 0.76 2999 29 20 10.41 2738 9.99 6.39 0.64 2901 9.69 6.20 0.64 2967 9.35 5.98 0.64 3097 29 22 10.84 2836 10.46 5.44 0.52 3016 10.20 5.30 0.52 3097 9.78 5.08 0.52 3227 29 24 11.39 2967 10.97 4.39 0.40 3130 10.71 4.28 0.40 3227 10.37 4.15 0.40 3390 29 26 11.73 3130 11.39 3.19 0.28 3293 11.22 3.14 0.28 3390 10.88 3.05 0.28 3488 30 18 9.99 2608 9.56 7.65 0.80 2738 9.18 7.34 0.80 2869 8.84 7.07 0.80 2999 30 20 10.41 2738 9.99 6.79 0.68 2901 9.69 6.59 0.68 2967 9.35 6.36 0.68 3097 30 22 10.84 2836 10.46 5.85 0.56 3016 10.20 5.71 0.56 3097 9.78 5.47 0.56 3227 30 24 11.39 2967 10.97 4.82 0.44 3130 10.71 4.71 0.44 3227 10.37 4.56 0.44 3390 30 26 11.73 3130 11.39 3.64 0.32 3293 11.22 3.59 0.32 3390 10.88 3.48 0.32 3488 31 18 9.99 2608 9.56 8.03 0.84 2738 9.18 7.71 0.84 2869 8.84 7.43 0.84 2999 31 20 10.41 2738 9.99 7.19 0.72 2901 9.69 6.98 0.72 2967 9.35 6.73 0.72 3097 31 22 10.84 2836 10.46 6.27 0.60 3016 10.20 6.12 0.60 3097 9.78 5.87 0.60 3227 31 24 11.39 2967 10.97 5.26 0.48 3130 10.71 5.14 0.48 3227 10.37 4.98 0.48 3390 31 26 11.73 3130 11.39 4.10 0.36 3293 11.22 4.04 0.36 3390 10.88 3.92 0.36 3488 32 18 9.99 2608 9.56 8.42 0.88 2738 9.18 8.08 0.88 2869 8.84 7.78 0.88 2999 32 20 10.41 2738 9.99 7.59 0.76 2901 9.69 7.36 0.76 2967 9.35 7.11 0.76 3097 32 22 10.84 2836 10.46 6.69 0.64 3016 10.20 6.53 0.64 3097 9.78 6.26 0.64 3227 32 24 11.39 2967 10.97 5.70 0.52 3130 10.71 5.57 0.52 3227 10.37 5.39 0.52 3390 32 26 11.73

SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

Q SHC SHF INPUT Q

21 2725

0.44

4.39

0.32

3.33

0.48

4.79

0.36

3.75

0.24

2.60

0.52

5.19

0.40

4.17

0.28

3.03

0.56

5.59

0.44

4.58

0.32

3.47

0.20

2.28

0.60

5.99

0.48

5.00

0.36

3.90

0.24

2.73

0.64

6.39

0.52

5.41

0.40

4.34

0.28

3.19

0.16

1.88

0.68

6.79

0.56

5.83

0.44

4.77

0.32

3.64

0.20

2.35

0.72

7.19

0.60

6.25

0.48

5.20

0.36

4.10

0.24

2.82

0.76

7.59

0.64

6.66

0.52

5.64

0.40

4.56

0.28

3.28

0.80

7.99

0.68

7.08

0.56

6.07

0.44

5.01

0.32

3.75

0.84

8.39

0.72

7.50

0.60

6.50

0.48

5.47

0.36

4.22

0.88

8.79

0.76

7.91

0.64

6.94

0.52

5.92

0.40 3130 11.39 4.56 0.40 3293 11.22 4.49 0.40 3390 10.88 4.35 0.40 3488

4.69

OUTDOOR DB(:)

SHC

SHF INPUT Q SHC SHF INPUT30Q SHC SHF INPUT

Page 22

21 18 8.33 3.67 0.44 3195 7.65 3.37 0.44 3390 7.35 3.24 0.44 3456 21 20 8.76 2.80 0.32 3325 8.16 2.61 0.32 3488 7.86 2.52 0.32 3586 22 18 8.33 4.00 0.48 3195 7.65 3.67 0.48 3390 7.35 3.53 0.48 3456 22 20 8.76 3.15 0.36 3325 8.16 2.94 0.36 3488 7.86 2.83 0.36 3586 22 22 9.27 2.22 0.24 3456 8.67 2.08 0.24 3651 8.37 2.01 0.24 3716 23 18 8.33 4.33 0.52 3195 7.65 3.98 0.52 3390 7.35 3.82 0.52 3456 23 20 8.76 3.50 0.40 3325 8.16 3.26 0.40 3488 7.86 3.15 0.40 3586 23 22 9.27 2.59 0.28 3456 8.67 2.43 0.28 3651 8.37 2.34 0.28 3716 24 18 8.33 4.66 0.56 3195 7.65 4.28 0.56 3390 7.35 4.12 0.56 3456 24 20 8.76 3.85 0.44 3325 8.16 3.59 0.44 3488 7.86 3.46 0.44 3586 24 22 9.27 2.96 0.32 3456 8.67 2.77 0.32 3651 8.37 2.68 0.32 3716 24 24 9.78 1.96 0.20 3586 9.18 1.84 0.20 3749 8.93 1.79 0.20 3831 25 18 8.33 5.00 0.60 3195 7.65 4.59 0.60 3390 7.35 4.41 0.60 3456 25 20 8.76 4.20 0.48 3325 8.16 3.92 0.48 3488 7.86 3.77 0.48 3586 25 22 9.27 3.34 0.36 3456 8.67 3.12 0.36 3651 8.37 3.01 0.36 3716 25 24 9.78 2.35 0.24 3586 9.18 2.20 0.24 3749 8.93 2.14 0.24 3831 26 18 8.33 5.33 0.64 3195 7.65 4.90 0.64 3390 7.35 4.71 0.64 3456 26 20 8.76 4.55 0.52 3325 8.16 4.24 0.52 3488 7.86 4.09 0.52 3586 26 22 9.27 3.71 0.40 3456 8.67 3.47 0.40 3651 8.37 3.35 0.40 3716 26 24 9.78 2.74 0.28 3586 9.18 2.57 0.28 3749 8.93 2.50 0.28 3831 26 26 10.29 1.65 0.16 3716 9.69 1.55 0.16 3879 9.39 1.50 0.16 3961 27 18 8.33 5.66 0.68 3195 7.65 5.20 0.68 3390 7.35 5.00 0.68 3456 27 20 8.76 4.90 0.56 3325 8.16 4.57 0.56 3488 7.86 4.40 0.56 3586 27 22 9.27 4.08 0.44 3456 8.67 3.81 0.44 3651 8.37 3.68 0.44 3716 27 24 9.78 3.13 0.32 3586 9.18 2.94 0.32 3749 8.93 2.86 0.32 3831 27 26 10.29 2.06 0.20 3716 9.69 1.94 0.20 3879 9.39 1.88 0.20 3961 28 18 8.33 6.00 0.72 3195 7.65 5.51 0.72 3390 7.35 5.29 0.72 3456 28 20 8.76 5.25 0.60 3325 8.16 4.90 0.60 3488 7.86 4.72 0.60 3586 28 22 9.27 4.45 0.48 3456 8.67 4.16 0.48 3651 8.37 4.02 0.48 3716 28 24 9.78 3.52 0.36 3586 9.18 3.30 0.36 3749 8.93 3.21 0.36 3831 28 26 10.29 2.47 0.24 3716 9.69 2.33 0.24 3879 9.39 2.25 0.24 3961 29 18 8.33 6.33 0.76 3195 7.65 5.81 0.76 3390 7.35 5.59 0.76 3456 29 20 8.76 5.60 0.64 3325 8.16 5.22 0.64 3488 7.86 5.03 0.64 3586 29 22 9.27 4.82 0.52 3456 8.67 4.51 0.52 3651 8.37 4.35 0.52 3716 29 24 9.78 3.91 0.40 3586 9.18 3.67 0.40 3749 8.93 3.57 0.40 3831 29 26 10.29 2.88 0.28 3716 9.69 2.71 0.28 3879 9.39 2.63 0.28 3961 30 18 8.33 6.66 0.80 3195 7.65 6.12 0.80 3390 7.35 5.88 0.80 3456 30 20 8.76 5.95 0.68 3325 8.16 5.55 0.68 3488 7.86 5.35 0.68 3586 30 22 9.27 5.19 0.56 3456 8.67 4.86 0.56 3651 8.37 4.69 0.56 3716 30 24 9.78 4.30 0.44 3586 9.18 4.04 0.44 3749 8.93 3.93 0.44 3831 30 26 10.29 3.29 0.32 3716 9.69 3.10 0.32 3879 9.39 3.01 0.32 3961 31 18 8.33 7.00 0.84 3195 7.65 6.43 0.84 3390 7.35 6.18 0.84 3456 31 20 8.76 6.30 0.72 3325 8.16 5.88 0.72 3488 7.86 5.66 0.72 3586 31 22 9.27 5.56 0.60 3456 8.67 5.20 0.60 3651 8.37 5.02 0.60 3716 31 24 9.78 4.69 0.48 3586 9.18 4.41 0.48 3749 8.93 4.28 0.48 3831 31 26 10.29 3.70 0.36 3716 9.69 3.49 0.36 3879 9.39 3.38 0.36 3961 32 18 8.33 7.33 0.88 3195 7.65 6.73 0.88 3390 7.35 6.47 0.88 3456 32 20 8.76 6.65 0.76 3325 8.16 6.20 0.76 3488 7.86 5.98 0.76 3586 32 22 9.27 5.93 0.64 3456 8.67 5.55 0.64 3651 8.37 5.36 0.64 3716 32 24 9.78 5.08 0.52 3586 9.18 4.77 0.52 3749 8.93 4.64 0.52 3831 32 26 10.29 4.11 0.40 3716 9.69 3.88 0.40 3879 9.39 3.76 0.40 3961

INDOOR

DB(:)

INDOOR

WB(:)

OUTDOOR DB(:)

35 4340

SHC

SHF

INPUT

SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 8.5(kW) SHF : 0.62 INPUT : 3260(W)

PERFORMANCE DATA COOL operation

MS-GA80VB : MU-GA80VB (230V)

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature

SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB : Wet-bulb temperature

Page 23

TROUBLESHOOTING

MU-GA50VB MU-GA60VB MU-GA80VB

9-1. 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 turn OFF the main unit the first with the remote controller, and then after

confirming the horizontal vane is closed, turn OFF the breaker and / or disconnect the power plug.

(2) Be sure to turn OFF the power supply before removing the front panel, the cabinet, the top panel, and the electronic

control 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 com-

ponents.

(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 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 9-2.

Page 24

Start

Indoor unit operates. Outdoor unit doesn't operate.

Indoor unit doesn't receive the signal from remote controller.

Indoor unit operates. Outdoor unit doesn't operate normally.

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

Outdoor unit operates only in Test Run operation.

Outdoor unit doesn't 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".

MU-GA80VB

Refer to 9-4. A "Check of outdoor unit".

Refer to "Check of remote controller and receiver P.C. board".

MU-GA80VB

Flash on and off at 0.5second intervals Cause: Indoor/ Outdoor unit

• Mis-wiring

Refer to 9-4. C "How to check mis-wiring (When outdoor unit doesn't work)".

2-time flash Cause: Indoor unit

• Trouble of room temp erature/ indoor coil thermistor

3-time flash Cause: Indoor unit

• Trouble of indoor fan motor

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

Refer to "Check of indoor fan motor".

4-time flash Cause: Indoor unit

• Trouble of indoor unit control system

Replace the indoor electronic control P.C. board.

1. Check indoor / outdoor connecting wire.

2. Refer to "Check of indoor electronic control P.C. board".

Outdoor unit doesn't stop even if indoor unit stops.

MU-GA50/GA60VB

Check of wiring diagram of outdoor unit on page 10.

MU-GA80VB

Refer to 9-4. B "Check of outdoor unit".

Refer to indoor unit service manual.

MU-GA80VB

6-time flash Cause: Outdoor unit

• Trouble of thermistor in outdoor unit

MU-GA80VB

7-time flash Cause: Outdoor unit

• Trouble of outdoor control system

Refer to 9-4. E "Check of outdoor thermistor".

Replace the deicer P.C. board.

MU-GA80VB

10-time flash Cause: Outdoor unit

• Trouble of low discharge temperature protection

Refer to 9-4. D "Check of LEV".

9-2. Instruction of troubleshooting

Page 25

9-3. Trouble criterion of main parts

Part name FigureCheck method and criterion

Measure the resistance between the terminals with a tester. (Part temperature –10˚C ~ 40˚C)

Compressor (MC) INNER PROTECTOR 160i 5: OPEN 90i10: CLOSE

Normal

MU-GA50VB

Terminal

C – R C – S

1.59 " ~ 1.95 "

2.65 " ~ 3.24 "

MU-GA60VB

0.71 " ~ 0.87 "

1.45 " ~ 1.77 "

MU-GA80VB

0.56 " ~ 0.71 "

1.43 " ~ 1.76 "

Abnormal

Open or

short-circuit

LEV(Expansion valve)

MU-GA80VB

Color of lead wire

WHT – RED RED – ORN

YLW – BRN BRN – BLU

Abnormal

Open or

short-circuit

Normal

41.0 " ~ 49.0 "

Measure the resistance with a tester. (Part temperature : –10˚C ~ 40˚C)

Measure the resistance with a tester. (Part temperature –10˚C ~ 40˚C)

Discharge temperature thermistor(RT62)

MU-GA80VB

Ambient temperature thermistor(RT63)

MU-GA80VB

Measure the resistance with a tester. Before measurement, hold the thermistor with your hands to warm it up. (Part temperature 0˚C ~ 40˚C)

Normal

120 k" ~ 800k"

Abnormal

Open or short-circuit

Normal

5 k" ~ 60 k"

Abnormal

Open or short-circuit

w Reference value

MU-GA50VB MU-GA60VB MU-GA80VB

Measure the resistance between the terminals with a tester. (Part temperature –10˚C ~ 40˚C)

Color of

lead wire

WHT – BLK

BLK – RED BLK – YLW

YLW – RED

Open or

short-circuit

70.4 " ~ 85.5 "

73.6 " ~ 89.3 " – –

63 " ~ 77 " 79 " ~ 96 "

– –

55 " ~ 68 "

– 49 " ~ 61 " 22 " ~ 29 "

Normal

Abnormal

Outdoor fan motor(MF) INNER PROTECTOR

MU-GA50VB MU-GA60VB

130i 5: OPEN ( 83i15: CLOSE

)

MU-GA80VB

135i 5: OPEN ( 87i15: CLOSE

)

REDORN WHT

YLW

BLK

MAIN

AUX.1AUX.2

BLK

MAIN

AUX.

RED

WHT

MAIN

AUX.

BLK

MU-GA50VB/GA60VB

MU-GA80VB

RED

WHTORN

LEV

WHT

RED1

ORN4

YLW5

BRN2

BLU3

:INNER PROTECTOR

MU-GA50VB MU-GA60VB MU-GA80VB

Page 26

Is there 230V AC to between

L-N on the

outdoor terminal block

Check the outdoor power supply and connection of wiring.

Yes

Compressor does not operate.

Yes

3minutes after the power supply turns ON, is there 230V AC between A1-A2 on the compressor contactor (52C)?

Operate the unit in COOL mode by pressing the EMERGENCY OPERATION switch.

Outdoor fan motor does not operate.

Rectify the connecting wire.

Check the compressor. Refer to page 25.

Replace the compressor contactor(52C).

Turn ON the power supply.

Yes

Is there 230V AC between 2/T1 on the compressor contactor(52C) and N on the outdoor terminal block?

Yes

Replace the deicer P.C. board.

Yes

Is there 230V AC between 1/L1 on the compressor contactor(52C) and N on the outdoor terminal block?

Yes

Is there 230V AC between CN711 1-3 or 2-3 on the deicer P.C. board? w

Operate the unit in COOL mode by pressing the EMERGENCY OPERATION switch.

Check the outdoor fan motor. Refer to page 25.

Yes

Is there 230V AC CN730 1-3 on the deicer P.C. board? w

Replace the deicer P.C. board.

Is there 5V DC between J101 - J401 on the deicer P.C. board? w

Is there 230V AC between CN730 1-3 on the deicer P.C. board? w

Is there 5V DC between J101 - J401 on the deicer P.C. board? w

w Refer to 9-5.

9-4. Troubleshoot flow

Compressor and/or outdoor fan motor doesn’t operate.

Check of outdoor unit

MU-GA80VB

Page 27

Compressor and/or outdoor fan motor doesn’t stop.

Check of outdoor unit

1 Turn OFF the power supply. 2 After 30 seconds, turn ON the power supply again. 3 Operate the unit in COOL mode by pressing the

EMERGENCY OPERATION switch. 4 Operate the unit for 1 minute or more and stop it by pressing the EMERGENCY OPERATION switch again.

After 30 seconds, does compressor stop?

After 30 seconds, does outdoor fan motor stop?

Yes

MU-GA80VB

Is there 230V AC between

A1-A2 on the compressor contactor (52C)?

Yes

Replace the deicer P.C. board.

Is there 230V AC between

2/T1 on the compressor contactor (52C) and N on the outdoor terminal block?

Replace the compressor contactor (52C).

Yes

When OPERATION INDICATOR lamp flashes ON and OFF in every 0.5-second. Outdoor unit doesn’t operate.

How to check mis-wiring

MU-GA80VB

Start

w Short circuit of JPG and JPS on the indoor electronic control P.C. board enables self -check to be displayed in 3 seconds.

Yes

Rectify the connecting wire.

• Turn ON the power supply. (indoor/ outdoor unit)

• Press once EMERGENCY OPERATION switch.

After 3 minutes, mis-wiring is indicated (0.5-second ON, 0.5-second OFF) on OPERATION INDICATOR lamp on indoor unit.w

Make them sure.

1. Turn OFF the power supply (indoor/ outdoor unit) and disconnect indoor and outdoor connecting wire at the terminal block 3 of the indoor unit.

2. Short-circuit terminal block N-3 of indoor unit by lead wire.

Turn ON the power supply (indoor unit) and press once EMERGENCY OPERATION switch.

Yes

Is this mis-wiring, poor contact, or wire disconnection?

Is there 20V DC between both ends of R132 on the indoor electronic control P.C. board ? ( By tester, the stylus is between 0 ~ 20V. )

• Turn OFF the power supply. (indoor unit) Disconnect the lead wire that terminal block N-3 of the indoor unit is short-circuited.

• Connect ON indoor/ outdoor connecting wire.

Turn ON the power supply. (outdoor unit)

Is there 230V AC between L-N on the outdoor terminal block?

Is there 5V DC between J101 + -J401 - on the deicer P.C. board? Refer to 9-5.

During EMERGENCY OPERATION, is there 10V DC between both ends of R601on the deicer P.C. board? Refer to 9-5. (By tester, the stylus is between 5 ~10V.)

Replace the deicer P.C. board.

Yes

Replace the indoor electronic control P.C. board.

Check the outdoor power supply and connection of wiring.

Replace the deicer P.C. board.

Make the wiring between CN730

on the deicer P.C. board and outdoor terminal block correct. Refer to 9-5.

Refer to indoor unit service manual.

Page 28

When OPERATION INDICATOR lamp flashes 10-time.

Replace the LEV.

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

LEV operates in full-opening direction.

Is LEV properly fixed to the expansion valve?

Do you hear the expansion valve "click,click·······"? Do you feel the expansion valve vibrate on touching it?

Does the resistance of LEV have the characterictics on page 25?

Yes

Properly fix the LEV to the expansion valve.

Replace the deicer P.C. board.

NOTE : After check of LEV, do the undermentioned operations.

1. Turn OFF the power supply and turn ON again.

2. Press the RESET button on the remote controller.

Turn ON the power supply. 1 During pressing both the OPERATION SELECT button and the TOO COOL button on the

remote controller at the same time, press the RESET button. 2 First, release the RESET button. And release the other two buttons since all LCD in operation display section of the remote controller is displayed after 3 seconds.

AMPM

CLOCK

˚C

AMPM

Cooling doesn't operate.

Check of LEV (Expansion valve)

MU-GA80VB

When OPERATION INDICATOR lamp flashes 6-time. Thermistors in the outdoor unit are abnormal.

Check of outdoor thermistor

w Disconnect the connectors CN662 from the deicer P.C. board.

(Check the characteristics of each thermistor.)

Turn OFF the power supply.

Discharge temperature thermistor(RT62)

Measure resistance between CN 662 1 and 2.

Ambient temperature thermistor(RT63)

Measure resistance between CN 662 3 and 4.

MU-GA80VB

Does the resistancs of thermistor have the characteristics on 9-5.?

Replace the thermistor.

Replace the deicer P.C.

Connect CN662. Turn ON the power

Yes

supply and press the EMERGENCY OPERATION switch.

W It is thought defective contact of the connector.

board.

Does the unit operate 10 minutes or more?

Yes

Ok W.

Page 29

Temperature(:)

Discharge temperature thermistor(RT62)

Resistance(k")

0 102030405060708090100110120

100

200

300

400

500

600

700

800

900

Ambient temperature thermistor (RT63)

-20 -10 0 10 20 30 40

100

Temperature(:)

Resistance(k")

9-5. Test point diagram and voltage

MU-GA80VB Outdoor deicer P.C. board

CN662 1-C Discharge temperature thermistor (RT62)

(Refer to 9-4.E)

J101

}

J401

(Refer to 9-4.A or 9-4.C)

CN662 3-4 Ambient temperature thermistor (RT63)

(Refer to 9-4.E)

LEV connector (CN724)

Fan motor connector (CN711)

}

R601 10V DC (Refer to 9-4.C)

Varistor (NR62)

12V DC

}

Fuse

3.15A / 250V Varistor

(NR61)

CN7301-3

}

230V AC (Refer to 9-4.A or

9-4.C)

Page 30

(1) Slide the sleeve and check if there is a locking lever or not.

(2) The terminal with this connector has the locking mechanism.

1Slide the sleeve. 2Pull the terminal while

pushing the locking lever.

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

The terminal which has the locking mechanism can be detached as shown below. There are two types ( Refer to (1) and (2)) of the terminal with locking mechanism. The terminal without locking mechanism can be detached by pulling it out. Check the shape of the terminal before detaching.

<"Terminal with locking mechanism" Detaching points>

Connector

Sleeve

Locking lever

DISASSEMBLY INSTRUCTIONS

10-1. MU-GA50VB

OPERATING PROCEDURE

1. Removing the cabinet

(1) Remove the screws of the cabinet. (2) Hold the down of the cabinet on the both side and remove

the cabinet.

Photo 2

Screws of the cabinet

2. Removing the electrical parts

(1) Remove the service panel and the cabinet. (2) Remove the following parts.

•Compressor capacitor (C1)

•Outdoor fan capacitor (C2)

•Terminal block (TB1, TB2)

•Compressor contactor (52C)

Photo 1

Service panel

Photo 3

PHOTOS

Outdoor fan capacitor(C2)

Connector

Screws of the cabinet

Compressor contactor(52C)

Compressor capacitor(C1)

Terminal blocks (TB1, TB2)

Page 31

OPERATING PROCEDURE

PHOTOS

3. Removing the outdoor fan motor

(1) Remove the cabinet. (Refer to 1.) (2) Disconnect the connector and remove the hooked lead

wire from the fan motor. (3) Remove the propeller nut and remove the propeller. (4) Remove screws fixing the outdoor fan motor. (5) Remove the outdoor fan motor.

4. Removing the compressor

(1) Remove the cabinet. (Refer to 1.) (2) Remove the relay panel. (3) Remove the soundproof felt. (4) Remove the terminal cover on the compressor. (5) Disconnect lead wires from the glass terminal of the com-

pressor. (6) Recover gas from the refrigerant circuit. (7) Disconnect the welded part of the discharge pipe. (8) Disconnect the welded part of the suction pipe. (9) Remove nuts fixing the compressor.

(10)

Remove the compressor.

Photo 4

Propeller

Photo 5

Discharge pipe

Hook

Propeller nut

Soundproof felt

NOTE

● Before using a burner, reclaim gas from the pipes until the pressure gauge shows 0 kg/cm

● Use the burner under the condition that gas can be recovered even when the inner pressure rises by heat.

(MPa).

Suction pipe

Compressor

Compressor set nuts

Page 32

10-2. MU-GA60VB

OPERATING PROCEDURE

1. Removing the cabinet

(1) Remove the screws of the cabinet. (2) Hold the bottom of the cabinet on the both side to remove

the cabinet.

PHOTOS

Photo 1

Screws

Service panel

Photo 2

2. Removing the electrical parts

(1) Remove the cabinet . (Refer to 1.) (2) Remove the following parts.

•Compressor capacitor (C1)

•Outdoor fan capacitor (C2)

•Terminal block(TB1, TB2)

•Relay (X1)

•Compressor contactor (52C)

Screws

Photo 3

Outdoor fan capacitor (C2)

Connector

Relay (X1)

Compressor capacitor (C1)

Compressor contactor (52C)

Terminal blocks (TB1, TB2)

Page 33

OPERATING PROCEDURE

PHOTOS

3. Removing the outdoor fan motor

(1) Remove the cabinet. (Refer to 1.) (2) Disconnect the connector and remove the hocked lead

wire from the fan motor. (3) Remove the propeller nut and remove the propeller. (4) Remove the screws fixing the fan motor. (5) Remove the outdoor fan motor.

4. Removing the compressor

(1) Remove the cabinet. (Refer to 1.) (2) Remove the soundproof felt. (3) Remove the terminal cover on the compressor. (4) Disconnect the lead wires from the glass terminal of the

compressor.

(5) Recover gas from the refrigerant circuit.

NOTE: Recover gas from the pipes until the pressure gauge

shows 0 kg/cm

(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.

(0MPa).

Photo 4

Propeller

Photo 5

Discharge pipe

Hook

Propeller nut

Suction pipe

Compressor

Compressor set nuts

Page 34

10-3. MU-GA80VB

OPERATING PROCEDURE

1.Removing the cabinet

(1) Remove the screws of the service panel. (2) Remove the screws of the top panel. (3) Remove the screw of the valve cover. (4) Remove the service panel. (5) Remove the top panel. (6) Remove the valve cover. (7) Remove the screws of the front panel. (8) Remove the front panel. (9) Remove the screws of the back panel. (10)

Remove the back panel.

Photo 3

Screw of the motor support

Photo 1

Screws of the cabinet

Photo 2

PHOTOS

Screw of the top panel

Screws of the cabinet

Screw of the service panel

Screws of the back panel

Set screws of the back panel

2. Removing the deicer P.C. board

(1) Remove the service panel and the cabinet. (2) Disconnect all the connectors and the terminals on the

deicer P.C. board.

(3) Remove the deicer P.C. board.

Screws of the front panel

Photo 4

Deicer P.C. board

Screws of the top panel

Screw of the valve cover

Terminal

blocks

Screws of the relay panel

Page 35

OPERATING PROCEDURE

PHOTOS

3. Removing the propeller and the outdoor fan motor

(1) Remove the cabinet. (Refer to 1.) (2) Remove the propeller nut and the propeller.

NOTE : Loose the propeller in the rotating direction for

removal.

When attaching the propeller, align the mark on the propeller and the motor shaft cut section. Set the propeller in position by using the cut on the shaft and the mark on the propeller.

(3) Remove the clamp of outdoor fan motor lead wire and

disconnect the outdoor fan motor connector. (4) Remove the screws fixing the outdoor fan motor. (5) Remove the outdoor fan motor.

Photo 5

Set screws of the outdoor fan motor

Propeller

nut

Propeller

Set screws of the outdoor fan motor

4. Removing the compressor

NOTE: Recover gas from the pipes until the pressure gauge

shows 0 kg/cm (7) Disconnect the welded part of the discharge pipe. (8) Disconnect the welded part of the suction pipe. (9) Remove nuts fixing the compressor.

)

(

Remove the compressor.

(0MPa).

Photo 6

Discharge pipe

Suction pipe

Terminal cover

Compressor set nuts

Page 36

PARTS LIST (non-RoHS compliant)

MU-GA50VB MU-GA60VB 11-1. OUTDOOR UNIT

STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS

18 17

15 14 13

Page 37

MU-GA50VB - E1MU-GA60VB -

Symbol

in Wiring

Diagram

Q'ty/unit

Remarks

Part No. Part Name

No.

E02 817 233 E02 817 232 E02 817 521 E02 141 501 E02 139 515 E02 075 506 E02 527 506 E02 817 900 E02 821 900 E02 817 290 E02 818 290 E02 817 661 E02 818 661 E02 817 662 E02 817 245 E02 816 301 E02 818 301 E02 817 630 E02 818 630 E02 890 383 E02 895 383 E02 818 374 E02 817 374 E02 466 340 E02 466 340 E07 012 340 E02 895 351 E02 888 353 E02 889 353 E02 817 009 E02 412 936 E02 217 936

1 2 3 4 5

14 15

16 17 18 19 20

21 22 23

BACK PANEL CABINET GRILLE PROPELLER MOTOR SUPPORT COMPRESSOR RUBBER SET COMPRESSOR RUBBER SET COMPRESSOR COMPRESSOR BASE BASE STOP VALVE(GAS) STOP VALVE(GAS) STOP VALVE(LIQUID) SERVICE PANEL OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER SURGE ABSORBER SURGE ABSORBER TERMINAL BLOCK TERMINAL BLOCK COMPRESSOR CONTACTOR RELAY COMPRESSOR CONTACTOR OUTDOOR FAN CAPACITOR COMPRESSOR CAPACITOR COMPRESSOR CAPACITOR HANDLE CAPILLARY TUBE CAPILLARY TUBE

1 1 1 1 1 3

1 1 1

1 1

1 1 1 1 1

1 1 1

1 1

3RUBBERS/SET 4RUBBERS/SET RN196VHSHT NN29VBAHT

{12.7 {15.88 { 6.35

RA6V50 RA6V60 -

2P 3P

3.0+/440V AC 40+/440V AC 55+/440V AC

{3.0o{1.6o600 {3.0o{1.8o500

MC MC

MF MF

DSAR DSAR

TB2 TB1 52C

52C

C2 C1 C1

PARTS LIST (non-RoHS compliant)

MU-GA50VB MU-GA60VB 11-1. OUTDOOR UNIT

STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS

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

Page 38

PARTS LIST (non-RoHS compliant)

MU-GA80VB 11-2. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS

AND FUNCTIONAL PARTS

22232425

2 3

6 7

20 19

18 17

15 14

1210 11

Page 39

MU-GA80VB -

Symbol

in Wiring

Diagram

Q'ty/unit

Remarks

Part No.

No.

Part Name

E02 819 297 E02 819 630 E02 819 301 E02 214 501 E02 819 290 E02 819 232 E02 819 009 E02 819 521 E02 527 506 E02 819 900 E02 819 661 E02 819 662 E02 819 650 E02 819 245 E02 819 309 E02 890 383 E02 821 374 E02 817 374 E02 890 351 E02 896 451 E02 890 340 E02 890 353 E02 819 233 E02 817 009 E02 726 515 E02 822 640 E02 819 493 E02 127 382 E02 336 385 E02 214 386 E02 819 936 E02 262 936 E02 527 936

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

TOP PANEL OUTDOOR HEAT EXCHANGER OUTDOOR FAN MOTOR PROPELLER BASE CABINET HANDLE FAN GUARD COMPRESSOR RUBBER SET COMPRESSOR STOP VALVE(GAS) STOP VALVE(LIQUID) VALVE COVER SERVICE PANEL THERMISTOR SURGE ABSORBER TERMINAL BLOCK TERMINAL BLOCK OUTDOOR FAN CAPACITOR DEICER P.C. BOARD COMPRESSOR CONTACTOR COMPRESSOR CAPACITOR BACK PANEL(OUT) HANDLE MOTOR SUPPORT EXPANSION VALVE EXPANSION VALVE COIL FUSE VARISTOR CZ SURGE ABSORBER CAPILLARY TUBE(TAPER PIPE) CAPILLARY TUBE CAPILLARY TUBE

RA6V75-

4RUBBERS/SET NN37VAAHT

{15.88 {9.52

DISCHARGE, AMBIENT

2P 3P

4.0+/440V AC

60+/440V AC

250V/3.15A

{3.6x{2.4x50 {4.0x{2.4x200 {4.0x{2.4x100

RT62, RT63

DSAR

TB2 TB1

52C

LEV

F61

NR61

1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

PARTS LIST (non-RoHS compliant)

MU-GA80VB 11-2. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS

AND FUNCTIONAL PARTS

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

Page 40

RoHS PARTS LIST (RoHS compliant)

MU-GA50VB MU-GA60VB 12-1. OUTDOOR UNIT

STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS

18 17

15 14 13

Page 41

MU-GA50VB - E1MU-GA60VB -

Symbol

in Wiring

Diagram

Q'ty/unit

Remarks

Part No. Part Name

No.

E12 817 233 E12 817 232 E12 817 521 E12 141 501 E12 139 515 E12 075 506 E12 527 506 E12 817 900 E12 821 900 E12 817 290 E12 818 290 E12 817 661 E12 818 661 E12 817 662 E12 817 245 E12 816 301 E12 818 301 E12 817 630 E12 818 630 E12 890 383 E12 895 383 E12 818 374 E12 817 374 E12 466 340 E12 466 340 E17 012 340 E12 895 351 E12 888 353 E12 889 353 E12 817 009 E12 412 936 E12 217 936

1 2 3 4 5

10 11

14 15

16 17 18 19 20

21 22 23

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

1 1 1 1 1 3

1 1 1

1 1

1 1 1 1 1

1 1 1

1 1

3RUBBERS/SET 4RUBBERS/SET RN196VHSHT NN29VBAHT

{12.7 {15.88 { 6.35

RA6V50 RA6V60 -

2P 3P

3.0+/440V AC 40+/440V AC 55+/440V AC

{3.0o{1.6o600 {3.0o{1.8o500

MC MC

MF MF

DSAR DSAR

TB2 TB1 52C

52C

C2 C1 C1

RoHS

RoHS PARTS LIST (RoHS compliant)

MU-GA50VB MU-GA60VB 12-1. OUTDOOR UNIT

STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS

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

Page 42

RoHS PARTS LIST (RoHS compliant)

MU-GA80VB 12-2. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS

AND FUNCTIONAL PARTS

22232425

2 3

6 7

20 19

18 17

15 14

1210 11

Page 43

RoHS PARTS LIST (RoHS compliant)

MU-GA80VB -

Symbol

in Wiring

Diagram

Q'ty/unit

Remarks

Part No.

No.

Part Name

E12 819 297 E12 819 630 E12 819 301 E12 214 501 E12 819 290 E12 819 232 E12 819 009 E12 819 521 E12 527 506 E12 819 900 E12 819 661 E12 819 662 E12 819 650 E12 819 245 E12 819 309 E12 890 383 E12 821 374 E12 817 374 E12 890 351 E12 896 451 E12 890 340 E12 890 353 E12 819 233 E12 817 009 E12 726 515 E12 822 640 E12 819 493 E12 A49 382 E12 336 385 E12 214 386 E12 819 936 E12 262 936 E12 527 936

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

RA6V75-

4RUBBERS/SET NN37VAAHT

{15.88 {9.52

DISCHARGE, AMBIENT

2P 3P

4.0+/440V AC

60+/440V AC

T3.15AL250V

{3.6x{2.4x50 {4.0x{2.4x200 {4.0x{2.4x100

RT62, RT63

DSAR

TB2 TB1

52C

LEV

F61

NR61

1 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

RoHS

MU-GA80VB 12-2. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS

AND FUNCTIONAL PARTS

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

Page 44

HEAD OFFICE: TOKYO BLDG.,2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

New publication, effective Jun. 2006 Specifications subject to change without notice.

Mitsubishi MU-GA50VB-E1, MU-GA60VB-E1, MU-GA80VB-E1 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual