Mitsubishi Electric MU-GE50VB- E1 Manuale utente

CONTENTS

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

2. PART NAMES AND FUNCTIONS····················· 3

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

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

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

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

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

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

9. ACTUATOR CONTROL··································· 16

10. SERVICE FUNCTIONS···································· 17

11. TROUBLESHOOTING····································· 17

12. DISASSEMBLY INSTRUCTIONS···················· 23

HFC

utilized

R410A

SPLIT-TYPE AIR CONDITIONERS

Models

MU-GE50VB- E1

MUH-GE50VB- E1

SERVICE MANUAL

OUTDOOR UNIT

Indoor unit service manual

MS/MSH-GE•VB Series (OBH529)

No. OBH530

NOTE:

• This service manual describes technical data of outdoor units.

PARTS CATALOG (OBB530)

TECHNICAL CHANGES

MU-GA50VB- E1

MU-GE50VB- E1

1. Unit size has been changed.

(W 850 mm × H 605 mm × D 290 mm W 800 mm × H 550 mm × D 285 mm)

2. Outdoor fan motor has been changed. (RA6V50-PA RA6V33-KA)

MUH-GA50VB- E1 MUH-GE50VB- E1

1. Unit size has been changed.

(W 850 mm × H 605 mm × D 290 mm W 800 mm × H 550 mm × D 285 mm)

2. Outdoor fan motor has been changed. (RA6V60-MA RA6V33-KB)

PART NAMES AND FUNCTIONS

Air outlet

Drain outlet

Piping

Drain hose

Air inlet

back and side

MU-GE50VB

MUH-GE50VB ACCESSORIES

MUH-GE50VB

Drain socket 1

SPECIFICATION

Outdoor model MU-GE50VB MUH-GE50VB

Function Cooling Cooling Heating

Power supply Single phase

230 V, 50 Hz Single phase

230 V, 50 Hz

Capacity kW 5.0 5.0 5.2

Electrical

data

Breaker capacity A 15 15

Running current (Total)

A 8.20 8.23 7.53

Power input (Total) W 1,810 1,780 1,610

Power factor (Total) % 96 94

Starting current (Total)

A37 37

Coefﬁcient of performance (C.O.P) (Total)

2.76 2.81 3.23

Compressor

Model RN196VHSHT RN196VHSHT

Output W 1,300 1,300

Compressor motor current

A 7.57 7.60 6.90

Fan

motor

Model RA6V33-KA RA6V33-KB

Fan motor current A 0.33 0.33

Dimensions W H D mm 800 550 285 800 550 285

Weight kg 38 40

Special

remarks

Dehumidiﬁcation /h 2.5 2.5

Air ﬂow /h 1,902 1,902

Sound level dB 52 52

Fan speed rpm 855 855

Fan speed regulator 1 1

Refrigerant ﬁlling

capacity (R410A) kg 1.35 1.45

Refrigeration oil (Model)

cc 520 (NEO 22) 520 (NEO 22)

NOTE: Test conditions are based on ISO 5151.

Cooling: Indoor Dry-bulb temperature 27°C Wet-bulb temperature 19°C

Outdoor Dry-bulb temperature 35°C Wet-bulb temperature 24°C

Heating: Indoor Dry-bulb temperature 20°C Wet-bulb temperature -°C

Outdoor Dry-bulb temperature 7°C Wet-bulb temperature 6°C

Indoor-Outdoor piping length: 5 m

NOISE CRITERIA CURVES

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-10 NC-10

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions,

Cooling :Dry-bulb temperature35°C Wet-bulb temperature24°C

10 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

Test conditions,

Cooling :Dry-bulb temperature35°C Wet-bulb temperature24°C

Heating :Dry-bulb temperature 7°C Wet-bulb temperature 6°C

MU-GE50VB

COOL

FUNCTION

SPL(dB(A))LINE MUH-GE50VB COOLING

FUNCTION

HEATING

SPL(dB(A))LINE

OUTDOOR UNIT

MICROPHONE

OUTLINES AND DIMENSIONS

800

302.5

500 Bolt pitch for installation

150

22.3

Handle

550

280

164.5

99.5

170.5

23 Service panel

Service port

285

344.5

400

Air in

Air out

Air in

17.5

Bolt pitch for

installation

304~325

Liquid refrigerant pipe joint

Refrigerant pipe (flared) ø6.35

Gas refrigerant pipe joint

Refrigerant pipe (flared) ø12.7

43°

35°

2 holes 10×21

REQUIRED SPACE Basically open 100mm or more

without any obstruction in front

and on both sides of the unit.

350mm or more

200mm or more

100mm or more

Open two sides of left,

right, or rear side.

Drain hole ø42

Unit: mm

OUTDOOR UNIT

MU-GE50VB MUH-GE50VB

WIRING DIAGRAM

MU-GE50VB

MUH-GE50VB

REFRIGERANT SYSTEM DIAGRAM

OUTDOOR UNIT

Unit :mm

MU-GE50VB

MUH-GE50VB

OUTDOOR UNIT

(with heat insulator)

Refrigerant pipe ø12.7 4-way valve

Defrost

thermistor

RT61

Muffler

Outdoor

heat

exchanger

Capillary tube

ø3.0 × ø1.6 × 500

Capillary tube

ø3.0 × ø1.6 × 300

Check valve

Strainer

#100

Refrigerant pipe ø6.35

(with heat insulator)

Stop valve

(with service

port)

R.V. coil

heating ON

cooling OFF

Flared connection

Compressor

Stop valve

Capillary tube

ø3.0 × ø1.8 × 600

(2 pcs)

Refrigerant flow in cooling

Refrigerant flow in heating

Outdoor

heat

exchanger

Capillary tube

3.0 x 1.6 x 450

Strainer

#100

Refrigerant pipe 6.35

(with heat insulator)

Stop valve

(with service port)

Compressor

Flared connection

Muffler

Refrigerant pipe 12.7

(with heat insulator)

Stop valve

The standard specifications apply only to the operation of the air conditioner under normal conditions, since operating condi-

tions 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

198~264 V

(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

(5) Indoor intake air dry-bulb temperature: °CDB

(6) Outdoor intake air wet-bulb temperature: °CWB

(7) Total input: W

Indoor air wet/dry-bulb temperature difference on the left side of the following chart 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.

}

Cooling

Heating (MUH-GE50VB)

Length of connecting pipe: m

Indoor unit

Piping size O.D: mm

Liquid

6.35

Gas

12.7

Outdoor unit

Gas 0.43

Liquid 0.5 Gas 0

Liquid 0

Model

MU-GE50VB

MUH-GE50VB 10

Refrigerant piping: m

Max. length

AMax. height

Indoor

unit

Max. height

B Outdoor unit

Refrigerant Piping

Max. length

7 m

10 m

15 m

160

20 m

260

Calculation : Xg = 20 g/m × (A-7)m

25 m

360

MUH-GE50VB 1350

1450

MU-GE50VB

Outdoor unit precharged

Model Refrigerant piping length (one way)

MAX. HEIGHT DIFFERENCE

ADDITIONAL REFRIGERANT CHARGE (R410A: g)

MAX. REFRIGERANT PIPING LENGTH

PERFORMANCE CURVES

MU-GE50VB MUH-GE50VB

MUH-GE50VB

MU-GE50VB

11.6

10.6

9.6

8.6

7.7

6.9

Outdoor intake air Dry-bulb temperature

Indoor air Wet-bulb temperature

difference(degree)

Indoor intake air Wet-bulb temperature

Outdoor intake air Dry-bulb temperature

Indoor intake air Wet-bulb temperature

MUH-GE50VB

26.6

24.5

22.5

20.4

18.4

16.3

14.3

12.3

Outdoor intake air Wet-bulb temperature

Indoor air Dry-bulb temperature

difference(degree)

Indoor intake air Dry-bulb temperature

Outdoor intake air Wet-bulb temperature

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

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 (MUH-GE50VB)] 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.

INDOOR UNIT OUTDOOR UNIT

Wet and dry-bulb

thermometers Wet and dry-bulb

thermometers

8-1. CAPACITY AND THE INPUT CURVES

8-2. OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

COOL operation

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

Air flow should be set at MAX.

Dry-bulb temperature Relative humidity(%)

20 50

25 60

30 70

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/cm2 [Gauge] )

18 32

230 V

15 20

50 25

60 30

70(%) 35(°C)

0.3

0.4

0.5

0.6

0.7

0.8

0.9

Outdoor low pressure

Ambient temperature (˚C)

Ambient humidity (%)

18 32

230V

15 20

50 25

60 30

70(%) 35(°C)

Ambient temperature (˚C)

Ambient humidity (%)

Outdoor unit current (A)

(kgf/

2[Gauge])(MPa[Gauge]) MUH-GE50VB MUH-GE50VB

18 32

230V

15 20

50 25

60 30

70(%) 35(°C)

18 32

230V

15 20

50 25

60 30

70(%) 35(°C)

0.3

0.4

0.5

0.6

0.7

0.8

0.9

Outdoor low pressure

Outdoor unit current (A)

(kgf/cm2[Gauge])(MPa[Gauge])

Ambient temperature (˚C)

Ambient humidity(%) Ambient temperature (˚C)

Ambient humidity(%)

MU-GE50VB MU-GE50VB

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