Mitsubishi Electric MCF-GA35VB, MCF-GA50VB, MCF-GA60VB Service Manual

SERVICE MANUAL

(When installed on the ceiling)

(When installed on the floor)

FLOOR AND CEILING TYPE AIR CONDITIONERS

Wireless type
Models

E1

E1

E1

(WH)

(WH)

(WH)

MCF-GA35VB ­MCF-GA50VB ­MCF-GA60VB -

No. OB382

Indication of
model name

MCF-GA35VB ­MCF-GA50VB ­MCF-GA60VB -

NOTE:

• This service manual describes technical data of indoor units

• As for outdoor units MUCF-GA35VB - ,MUCF-GA50VB - and MUCF-GA60VB - , refer to
the service manual OB383.

CONTENTS

E1
E1
E1

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

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

3. SPECIFICATION·················································4

4. NOISE CRITERIA CURVES·······························5

5. OUTLINES AND DIMENSIONS·························6

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

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

8. SERVICE FUNCTIONS ······································8

9. TROUBLESHOOTING······································10

10. DISASSEMBLY INSTRUCTIONS·····················15

11. PARTS LIST······················································17

12. OPTIONAL PARTS ···········································19

E1E1E1

1

(When installed on the floor)

(When the air inlet grille is opened.)

Deodorizing filter
(Gray sponge type)(option)

Air filter

Remote controller

Air inlet

Operation section

Air cleaning filter
(White bellows type)(option)

Front panel

Receiving section

Operation indicator lamp

Horizontal vane

Vertical vanes

Emergency
operation switch

(When installed on the ceiling)

ACCESSORIES

Item

Installation plate
Unit fixing screw
5 o 12mm
Wireless remote
controller
Remote controller
holder
Fixing screw for

3.5 o 16mm (Black)
Battery (AAA) for
remote controller
Drain hose
Drain pipe cover
Knockout cover
Screw for 4 o 10mm

2
2

1
1
2
2

1
1
1
2

Q'ty

TECHNICAL CHANGES

MCF-A12WV - ➔ MCF-GA35VB -

1. Model name has been changed.

MCF-A18WV - ➔ MCF-GA50VB -

1. Model name has been changed.

MCF-A24WV - ➔ MCF-GA60VB -

1. Model name has been changed.

2

PART NAMES AND FUNCTIONS

E1E1

E1E1

E1E1

MCF-GA35VB - MCF-GA50VB - MCF-GA60VB -

INDOOR UNIT

E1E1E1

2

MCF-GA35VB - MCF-GA50VB - MCF-GA60VB -

REMOTE CONTROLLER

Signal transmitting section

E1E1E1

Operation display section

OPERATE /STOP

(ON /OFF)button

Open the front lid.

FAN SPEED CONTROL button

OPERATION SELECT button

ECONO COOL button

RESET button

ON/OFF

WARM

ON/OFF

FAN

I FEEL

COOL

VANE

DRY

FAN

MODE

ECONO COOL

RESET

TOO

CLOCK

TOO

WARM

CLOCK

PM

AM

TOO

COOL

PM

AM

TOO

COOL

STOP

START

HR.

MIN.

TEMPERATURE buttons

Indication of remote controller model
is on back.

OFF-TIMER button

ON-TIMER button

HR. button

MIN. button

(TIME SET button)

CLOCK SET button

VANE CONTROL button

3

3

Indoor model

Function

Power supply

Air flow

(High/Med.W/LowW)
Power outlet
Running current
Power input
Auxiliary heater
Power factor
Fan motor current
Model

Winding
resistance(at 20:)

Dimensions WOHOD
Weight
Air direction
Sound level

(High/Med.W/LowW)

Fan speed

(High/Med.W/LowW)
Fan speed regulator
Thermistor RT11(at 25:)
Thermistor RT12(at 25:)
Remote controller model

K /h

A
A

W

A(kW)

%

A

"

mm

kg

dB

rpm

k"
k"

MCF-GA50VB -

E1

Cooling

Single phase

230V, 50Hz

780 / 636W / 492W

10

0.30
66

96

0.30

RB4V25-AC

WHT-BLK 182.2 BLK-YLW 68.9

YLW-BLU 47.5 BLU-BRN 31.5

BRN-RED 22.9

1,100O650O180

25

5

46 /41W / 36W

1,240 /1,060W / 845W

3
10
10

KM04N

MCF-GA60VB -

E1

Cooling

Single phase

230V, 50Hz

840/ 744W / 642W

0.36
80

97

0.36

RB4V36-DB

WHT-BLK 84 BLK-YLW 46.2

YLW-BLU 37.2 BLU-BRN 45.2

BRN-RED 13.6

48 /45W / 42W

1,320 /1,190W / 1,060W

Electrical

data

Fan

motor

Special

remarks

Capacity

MCF-GA35VB -

E1

Cooling

Single phase

230V, 50Hz

678 /582W /474 W

0.26
56

94

0.26

RB4V19-AC

WHT-BLK 203.2 BLK-YLW 45.9

YLW-BLU 32.7 BLU-BRN 44.4

BRN-RED 23.3

44 /40W /34W

1,105 /970W / 820W

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

W Reference value

4

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

Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:

High

46

SPL(dB

(A)) LINE

FAN SPEED

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

Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:

High

44

SPL(dB

(A)) LINE

FAN SPEED

NOISE CRITERIA CURVES

NOISE CRITERIA CURVES
MCF-GA35VB -

E1

MCF-GA50VB -

E1

MCF-GA60VB -

Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:

90

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10

63 125 250 500 1000 2000 4000 8000

E1

FAN SPEED

High

BAND CENTER FREQUENCIES, Hz

SPL(dB

48

(A)) LINE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

INDOOR UNIT

MICROPHONE

1m

1m

WALL

5

5

(When installed on the floor)

(When installed on the ceiling)

500mm or more

500mm or more

500mm or more

500mm or more

1000mm or more

650

616.5

80.8 906 112.8

114

16

1100

93

77

113

143

180

17042.5

[

12.7 (MCF-GA35/GA50VB)

[

15.88 (MCF-GA60VB)

Gas line

[

6.35

Liquid line

Wireless remote controller

162

19

58

OUTLINES AND DIMENSIONS

MCF-GA35VB - MCF-GA60VB ­MCF-GA50VB -

E1

INDOOR UNIT

E1E1

Unit: mm

WIRING DIAGRAM6

MCF-GA35VB - MCF-GA50VB - MCF-GA60VB -

INDOOR UNIT

POWER
SUPPLY
~/N 230V

50Hz

TO
OUTDOOR
UNIT
CONNECTING

12V

SYMBOL SYMBOL

C11
F11

HIC1

MF

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

CIRCUIT BREAKER

INDOOR FAN CAPACITOR
FUSE (3.15A)
DC/DC CONVERTER
INDOOR FAN MOTOR(INNER FUSE)

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

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

TB1

PE

N

L

TB2

1

2

REMOTE
CONTROLLER

GRN/YLW

MODELS WIRING DIAGRAM

BLU

BRN

BLK

WHT

DISP/
RECEIVER
P.C.BOARD

CN201

CN202

CN
101CN113CN151

5

5

MV
NR11
RT11
RT12

1
2

HIC1

3

TAB12

1
2

F11

ELECTRONIC CONTROL P.C BOARD

6
5

4

MV

SW/THERMO
P.C.BOARD

VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMISTOR
INDOOR COIL THERMISTOR

RT11

NAME NAME

6

E1E1E1

CN

112

LDCOM
LDC11

C11

X144
SR143

SR142

LDC12
LDFH
LDFM
LDFL

NR11

SYMBOLNAME
SR142~SR143
TB1, TB2

X144

SOLID STATE RELAY
TERMINAL BLOCK
RELAY

2 2

WHT
ORN
RED
BLK
YLW
BLU

RT12

WHT

1

ORN

2

RED

3

BLK

4

YLW

5

BLU

6

BRN

7
8

GRN/YLW

MF