Mitsubishi MUCFH-GA35VB, MUCFH-GA50VB, MUCFH-GA60VB Service Manual

FLOOR AND CEILING TYPE AIR CONDITIONERS

HFC

utilized

R410A

OUTDOOR UNIT

SERVICE MANUAL

Wireless type Models

Revision A:

● RoHS PARTS LIST has been added. Please void OB381.

No. OB381

REVISED EDITION-A

MUCFH-GA35VB MUCFH-GA50VB MUCFH-GA60VB -

MUCFH-GA50VB

E1

Indoor unit service manual

MCFH-GA•VB Series (OB380)

CONTENTS

1. TECHNICAL CHANGES ····································3

2. PART NAMES AND FUNCTIONS······················6

3. SPECIFICATION·················································7

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

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

6. WIRING DIAGRAM···········································11

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

8. PERFORMANCE CURVES······························14

9. ACTUA TOR CONTROL····································25

10. SERVICE FUNCTIONS·····································25

11. TROUBLESHOOTING ······································26

12. DISASSEMBLY INSTRUCTIONS·····················36

13. PARTS LIST······················································43

14. RoHS PARTS LIST···········································49

NOTE:

This service manual describes technical data of the 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 (RoHS compliant).

2

Refrigeration

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

0

1730

From liquid phase in cylinder

Possible

Incompatible oil

Non Non

Previous refrigerant

R22

R22 (100%)

Single refrigerant

Included

A1

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 Destruction Parameter : based on CFC-11 w2 :Global Warmth Parameter : based on CO

2

Revision A :

• RoHS PARTS LIST has been added.

1

MUH-A12YV - ➔ MUCFH-GA35VB -

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

MUCFH-A18WV - ➔ MUCFH-GA50VB -

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

MUCFH-A24WV - ➔ MUCFH-GA60VB -

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

TECHNICAL CHANGES

E1E1

INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT

• This room air conditioner adopts 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.

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 refrigeration 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 refrigeration oil of the upper layer to flow back to the compressor.

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

Compressor

Suction muffler

Oil back hole

Refrigeration oil

Refrigerant

Compressor

Suction muffler

Oil back hole

Refrigeration oil /Refrigerant

Compressor

-30 -20 -10 0 10 20

30

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

No

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.

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)

2.Refrigerant piping

Wall thickness

Outside diameter

Pipe

mm

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”.

Pipe diameter

mm

6.35

9.52

12.7

15.88

Dimension of flare nut

R410A

17 22 26 29

R22

17 22 24 27

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 refrigeration 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.

5

2

ACCESSORIES

Item

Drain socket Drain cap [33 Drain cap [16

Q'ty

1 2 –

1 2 1

MUCFH-GA35VB MUCFH-GA50VB

1 2 –

MUCFH-GA60VB

Air inlet

Piping Drain hose

Air outlet

Drain outlet

(back and side)

Air inlet

Piping Drain hose

Air outlet

Drain outlet

(back and side)

Air inlet

Piping Drain hose

Air outlet

Drain outlet

(back and side)

PART NAMES AND FUNCTIONS

MUCFH-GA35VB

MUCFH-GA60VB

MUCFH-GA50VB

6

3

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) Refrigeration oil (Model) Thermistor RT61(at 0:)

kW

r/h

K /h

A

A W %

A

W

"

mm

kg

dB

rpm

kg cc

k"

Single phase

230V, 50Hz

2,196

15

94 37

0.39

RN196VHSHT

1,300 C-R 1.80 C-S 3.00

RA6V50-PA WHT-BLK 79.5 BLK-RED 83.0

850o605o290

47 52

828

1

1.85

520 (NEO22)

33.18

Cooling

4.8

2.4

8.01

1,730

7.62

2.65

Heating

5.0 —

8.38

1,810

7.99

2.65

Single phase

230V, 50Hz

2,760

25

98 74

0.58

NN29VBAHT

1,900 C-R 0.80 C-S 1.64

RA6V85-DA

WHT-BLK 68.8

BLK-RED 93.1

840o850o330

74 53

730

1

2.20

1,200 (NEO22)

33.18

Cooling

6.0

3.1

10.51 2,370

9.93

2.45

Heating

6.8 —

11.71 2,640

11.13

2.50

Electrical

data

Compressor

Fan

motor

Special

remarks

Coefficient of performance(C.O.P)

Capacity

Single phase

230V, 50Hz

1,710

10

98 29

0.31

RN135VHSHT

900

C-R 2.79

C-S 3.36

RA6V33-JB WHT-BLK 215.1 BLK-RED 306.9

780o540o255

40 49

825

1

1.00

620 (NEO22)

33.18

Cooling

3.5

1.5

4.85

1,094

4.54

3.02

Heating

3.7 —

4.23 954

3.92

3.63

MUCFH-GA35VB MUCFH-GA50VB MUCFH-GA60VB

SPECIFICATION

NOTE: Test conditions are based on ISO 5151.

Cooling : Indoor DB27°C WB19°C Heating : Indoor DB20°C WB 15.5°C

Indoor-Outdoor piping length : 5m

Outdoor DB35°C WB(24°C) Outdoor DB 7°C WB 6°C

7

4

90

80

70

60

50

40

30

20

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

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

FUNCTION

COOLING

HEATING

52

SPL(dB

(A))

LINE

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

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

90

80

70

60

50

40

30

20

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

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

FUNCTION

COOLING

HEATING

53

SPL(dB

(A))

LINE

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

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

OUTDOORUNIT

MICROPHONE

1m

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

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

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

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

FUNCTION

COOLING

HEATING

49

SPL(dB

(A))

LINE

NOISE CRITERIA CURVES

MUCFH-GA35VB

MUCFH-GA50VB

MUCFH-GA60VB

8

5

320

25

43

-

35

-

155

90

104

74

260

10

780

500

122

40

540

320

285

255

Service panel

Gas refrigerant pipe joint Refrigerant pipe (flared) [12.7

Liquid refrigerant pipe joint Refrigerant pipe (flared) [6.35

Air out

Air in

109

32

110

147

Drainage 3 holes [33

100mm or more

100m

m

or m

ore

350m

m

or m

ore

REQUIRED SPACE

400m

m

or m

ore

100mm or more

1

00

m

or m

ore

100mm or more

350mm or more

5

0

m

o

r m

o

re

REQUIRED SPACE

Drainage 3 holes [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

35-

30

-

30

100

161

157

74

850

500

183

20

292

605

248

35

350

50

290

310

345

20

355

90

Drainage hole [16.2

OUTLINES AND DIMENSIONS

MUCFH-GA35VB

Unit: mm

MUCFH-GA50VB

9

MUCFH-GA60VB

30

-

35-

155

90

198

40

515

299

66

34

51

330

360

850

430

500

80

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

Liquid refrigerant pipe joint Refrigerant pipe (flared) [6.35

Service panel

Gas refrigerant pipe joint Refrigerant pipe (flared) [15.88

REQUIRED SPACE

Unit: mm

10

WIRING DIAGRAM6

SYMBOL

T61

TB1,TB2

21S4

52C

SYMBOL

MF

NR61

RT61

SR61,SR62

SYMBOL

C1

C65

DSAR

F61

MC

NAME

NAME NAME COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER FUSE(2A) COMPRESSOR(INNER PROTECTOR)

VARISTOR DEFROST THERMISTOR SOLID STATE RELAY

TRANSFORMER TERMINAL BLOCK R.V. COIL COMPRESSOR CONTACTOR

OUTDOOR FAN MOTOR (INNER FUSE)

MC

CN661

3

1 2

CN721

21S4

MF

SR62

SR61

TAB20

GRN/YLW

BLU

CIRCUIT BREAKER

POWER SUPPLY

BLU

BRN

DSAR

BLK BRN

RED

DEICER P.C.BOARD

4

C1

BLK

RED

3

WHT

S

C

R

CN730

RT61

BLK

2 3

1

RED

WHT

12V

TO CONNECTING

INDOOR UNIT

TB2

3 N

TB1

L

N

PE

~/N

NR61

F61

T61

C65

CN711

52C

230V

50Hz

MC

CN661

3

1 2

CN721

21S4

MF

SR62

SR61

TAB20

GRN/YLW

BLU

CIRCUIT BREAKER

POWER SUPPLY

BLU

BRN

DSAR

BLK BRN

RED

DEICER P.C.BOARD

4

C1

BLK

RED

3

WHT

S

C

R

CN730

RT61

BLK

2

3

1

RED

WHT

12V

TO CONNECTING

INDOOR UNIT

TB2

3

N

TB1

L

N

PE

~ /N

NR61

F61

T61

C65

CN711

52C

230V

50Hz

23

4

WHT

BLK

RED

ORN

1

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

C65

DSAR

F61 MC

NAME COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER FUSE (2A) COMPRESOR (INNER PROTECTOR)

SYMBOL

MF NR61 RT61

SR61,SR62

T61

NAME OUTDOOR FAN MOTOR (INNER PROTECTOR) VARISTOR DEFROST THERMISTOR SOLID STATE RELAY TRANSFORMER

SYMBOL

TB1,TB2

21S4

52C

NAME TERMINAL BLOCK R.V. COIL COMPRESSOR CONTACTOR

MUCFH-GA35VB

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

MUCFH-GA50VB

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

3. Symbols below indicate.

/: Terminal block, : Connector

11

NOTES:

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

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

SYMBOL

C1 C2

DSAR

F61

MC

MF NR61 RT61 SR61

TB1 TB2 T61 X52 X62

21S4

52C

NAME COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER FUSE (3.15A) COMPRESSOR (INNER PROTECTOR) OUTDOOR FAN MOTOR (INNER PROTECTOR) VARISTOR DEFROST THERMISTOR SOLID STATE RELAY TERMINAL BLOCK TERMINAL BLOCK TRANSFORMER CONTACTOR R. V. COIL RELAY R. V. COIL COMPRESSOR CONTACTOR

MUCFH-GA60VB

DEICER P.C.BOARD

BLU

X52

NO

COM

TAB52

BLU

52C

A2A1

T61

BLK

WHT

RED

BRN

TB2

7

1

CN730

BLK

WHT

CIRCUIT BREAKER

CN721

3

52C

4

RED

C2

ORN

DSAR

TO INDOOR UNIT CONNECTING

12V

WHT

C1

BLK

S

C

R

MC

RED

NR61

3

5

BLU

TB1

GRN/YLW

POWER SUPPLY

~/N 230V 50Hz

CN661

RT61

X62

1 2

3

21S4

BLU

BRN

BLU

BRN

SR61

F61

CN711

MF

123

21

ORN

RED

34

NO

COM

L

3

N

P E

REFRIGERANT SYSTEM DIAGRAM7

MUCFH-GA35VB

Refrigerant pipe [12.7

(with heat insulator)

Stop valve (with service port)

Flared connection

Stop valve

Strainer #100

Refrigerant pipe [6.35

(with heat insulator)

4-way valve

12

Muffler

Compressor

Capillary tube [3.0x[1.6x1050

Check valve

Defrost thermistor RT61

Outdoor heat exchanger

Capillary tube [3.0x[1.4x500(2pcs)

Capillary tube

[3.0x[1.6x600

R.V. coil heating ON cooling OFF

Refrigerant flow in cooling Refrigerant flow in heating

Unit:mm

MUCFH-GA50VB

Refrigerant pipe [12.7 (with heat insulator)

Flared connection

Refrigerant pipe[6.35 (with heat insulator)

Stop valve (with service port)

Capillary tube

[2.5o[0.6o1,000

Receiver

Stop valve

Strainer

4- way valve

Capillary tube

[3.0o[1.6o650

#100

Check valve

Oil separator #100

Compressor

Capillary tube

Refrigerant flow in cooling Refrigerant flow in heating

Defrost thermistor RT61

R.V. coil Heating ON Cooling OFF

[3.0o[1.6o500

Outdoor heat exchanger

Capillary tube

[3.0o[1.6o750

(2 pcs)

MUCFH-GA60VB

Refrigerant pipe [6.35 (with heat insulator)

Refrigerant pipe [15.88 (with heat insulator)

Stop valve (with service port)

Flared connection

Stop valve

Muffler

Receiver

4- way valve

Capillary tube

[3.0X[2.0X400

Strainer

#100

Check valve

Muffler

#100

Compressor

Capillary tube [3.0X[2.0X800

Refrigerant flow in cooling Refrigerant flow in heating

Outdoor heat exchanger

Defrost thermistor RT61

R.V. coil Heating ON Cooling OFF

13

A: Refrigerant piping Max.length 25m

W Max. Height

difference

10m

MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Model

MUCFH-GA35VB MUCFH-GA50VB MUCFH-GA60VB

wIt does not matter which unit is higher.

Refrigerant piping

MAX. length : m

A

25

Piping size O.D. : mm

Gas

{12.7

{15.88

Liquid

{6.35

ADDITIONAL REFRIGERANT CHARGE (R410A : g)

If pipe length exceeds 7m, additional refrigerant (R410A) charge is required.

Models

MUCFH-GA35VB MUCFH-GA50VB MUCFH-GA60VB

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

8

PERFORMANCE CURVES

Outdoor unit:

precharged

1,000 1,850 2,200

7m

0

Refrigerant piping length (one way)

10m

60

15m

160

20m

260

25m

360

MUCFH-GA35VB MUCFH-GA50VB MUCFH-GA60VB

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

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

COOLING (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 next 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.

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

14

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 inlet 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 inlet.

Cover the thermometers to prevent direct rays of the sun.

3. Check that the air filter is cleaned.

4. Open windows and doors of the 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.

Air in

Air out

8.7

8.0

7.3

6.6

5.9

5.3

INDOOR UNIT

FRONT VIEW

11.1

14.7

10.2

13.4

9.2

12.1

8.3

10.9

7.5

9.7

6.6

8.5

OUTDOOR UNIT

Wet and dry-bulb thermometers

BACK VIEW

MCFH-GA35VB

MUCFH-GA35VB

18.6

17.2

15.7

14.3

12.9

11.5

10.0

8.6

MUCFH-GA35VB

MCFH-GA35VB

MCFH-GA50VB

MUCFH-GA50VB

MCFH-GA60VB

31.8

23.4

29.3

21.6

26.9

19.8

24.4

18.0

22.0

16.2

19.5

14.4

17.1

12.6

14.7

10.8

MUCFH-GA50VB

MCFH-GA50VB

MCFH-GA60VB

MUCFH-GA60VB

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

COOL operation

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

Dry Bulb temperature (˚C)

20 25 30

Relative humidity (%)

50 60 70

15

2 Air flow should be set at MAX.

18 32

230V

15 20

50

25 60

307035(:)

(%)

0.7

0.8

0.9

1.0

1.1

1.2

1.3

7

8

9

10

11

12

13

18 32

230V

15 20

50

25 60

3070 35(:)

(%)

3

4

5

6

1.2

1.1

1.0

0.9

0.8

0.7

0.6

12

11

10

9

8

7

6

15 18 20 25 30 32 35(:)

50 60 70 (%)

Ambient temperature (:)

Ambient humidity (%)

Outdoor low pressure

11

10

9

8

7

6

5

15 18 20 25 30 32 35(:)

50 60 70 (%)

Ambient temperature (:)

Ambient humidity (%)

Outdoor unit current (A)

230V

(MPa [Gauge])

(kgf/F [Gauge])

1.1

1.0

0.9

0.8

0.7

0.6

0.5

11

10

9

8

7

6

5

15 18 20 25 30 32 35(:)

50 60 70 (%)

Ambient temperature (:)

Ambient humidity (%)

Outdoor low pressure

12

11

10

9

8

7

6

15 18 20 25 30 32 35(:)

50 60 70 (%)

Ambient temperature (:)

Ambient humidity (%)

Outdoor unit current (A)

230V

(MPa [Gauge])

(kgf/F [Gauge])

3 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])

MUCFH-GA35VB

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

Outdoor low pressure

Ambient temperature(˚C) Ambient humidity(%)

Outdoor unit current (A)

Ambient temperature(˚C) Ambient humidity(%)

MUCFH-GA50VB

MUCFH-GA60VB

16

MUCFH-GA35VB

HEAT operation

Condition Indoor : Dry bulb temerature 20.0: Outdoor : Dry bulb temerature 7,15,20:

Wet bulb temerature 6,12,14.5:

Wet bulb temerature 14.5:

7

21

230V

(:) (%)

5105015

60

20 70

25

3

4

5

6

Outdoor unit current (A)

5 7 10 15 20 25(:)

16

15

14

13

12

11

230V

50 60 70 (%)

Ambient temperature (:)

Ambient humidity (%)

11

10

9

8

Outdoor unit current (A)

5 7 10 15 20 25(:)

230V

50 60 70 (%)

Ambient temperature (:)

Ambient humidity (%)

Outdoor unit current (A)

Ambient temperature(˚C)

Ambient humidity(%)

MUCFH-GA60VB

MUCFH-GA50VB

17