Mitsubishi Electric MSH-GA60VB-E1 Manuale utente

CONTENTS

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

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

3. SPECIFICATION·················································5

4. NOISE CRITERIA CURVES·······························6

5. OUTLINES AND DIMENSIONS ·························7

6. WIRING DIAGRAM ············································8

7. REFRIGERANT SYSTEM DIAGRAM················9

8. SERVICE FUNCTIONS ····································10

9. TROUBLESHOOTING······································12

10. DISASSEMBLY INSTRUCTIONS·····················21

11. PARTS LIST······················································23

12. RoHS PARTS LIST···········································25

13. OPTIONAL PARTS···········································27

MSH-GA50VB -

MSH-GA60VB -

MSH-GA80VB - E1

SPLIT-TYPE AIR CONDITIONERS

SERVICE MANUAL

Models

INDOOR UNIT

NOTE:

This service manual describes technical data of the indoor 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).

Outdoor unit service manual

MUH-GA•VB Series (OB368)

No. OB367

REVISED EDITION-D

Revision D:

• Parts numbers of indoor fan motor and

motor band have been changed.

• Some descriptions have been modified.

Please void OB367 REVISED EDITION-C.

OB367D-1.qxp 12.1.13 7:49 AM Page 1

TECHNICAL CHANGES

MSH-A18WV - ➔MSH-GA50VB -

MSH-A24WV - ➔MSH-GA60VB -

MSH-A30WV - ➔MSH-GA80VB -

1. Model name has been changed.

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

2. Grille design has been changed.

3. Unit size has been changed.(W 1,100mmoH 325mmoD 227mm ➔W1,100mmoH 325mmoD 258mm)

E1E1

Revision A:

•RoHS PARTS LIST has been added.

Revision B:

•RoHS PARTS LIST has been corrected.

Revision C:

• Another type of the electronic control P.C. board (TYPE 2) has been added to the original one (TYPE 1). They are both com-

patible with MSH-GA50/60/80VB- .

Use the specified refrigerant only

Never use any refrigerant other than that specified.

Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.

Correct refrigerant is specified in the manuals and on the spec labels provided with our products.

We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by

failure to follow the instructions.

Revision D:

• Parts numbers of indoor fan motor and motor band have been changed.

• Some descriptions have been modified.

OB367D-1.qxp 12.1.13 7:49 AM Page 2

OB367D

PART NAMES AND FUNCTIONS

Grille

(When the grille is opened)

Remote controller

Operation section Display section

Emergency operation switch

Operation indicator lamp

Air inlet

To breaker

Power supply cord

Remote control

receiving section

Air cleaning filter (option)

(White bellows type)

Horizontal vane

Vertical vanes

Catechin air filter

Remote control

receiving section

Front panel

MSH-GA50VB

MSH-GA60VB

MSH-GA80VB

ACCESSORIES

1

2

3

4

5

6

Installation plate

Installation plate fixing screw 4 o25 mm

Remote controller holder

Fixing screw for 3o3.5 o1.6 mm (Black)

Battery (AAA) for remote controller

Wireless remote controller

Felt tape (Used for left or left-rear piping)

MSH-GA50VB

MSH-GA60VB

MSH-GA80VB

OB367D-1.qxp 12.1.13 7:49 AM Page 3

OB367D

REMOTE CONTROLLER

MSH-GA50VB

MSH-GA60VB

MSH-GA80VB

ON/OFF

TOO

COOL

TOO

WARM

ON/OFF

FAN

TOO

WARM TOO

COOL

VANE

MODE

ECONO COOL

STOP

START

HR.

MIN.

WIDE VANE

LONG

I FEEL

COOL

HEAT

DRY

CLOCK

RESET CLOCK

Open the front lid.

Signal transmitting section

Operation display section

OPERATE /STOP

(ON /OFF)button

TEMPERATURE buttons

OPERATION SELECT button

FAN SPEED CONTROL button

OFF-TIMER button

HR. button

MIN. button

(TIME SET button)

ON-TIMER button

RESET button

ECONO COOL button

VANE button

(Horizontal vane button)

CLOCK SET button

LONG button

WIDE VANE button

(Vertical vane button)

Indication of remote controller

model is on back.

OB367D-1.qxp 12.1.13 7:49 AM Page 4

OB367D

SPECIFICATION

Indoor model

Function

Power supply

Air flow (High/Med./Low

)

Breaker capacity

Running current

Power input

Power factor

Fan motor current

Model

Winding

resistance (at 20:)

Dimensions WOHOD

Weight

Air direction

Sound level (High/Med./Low)

Fan speed (High/Med./Low)

Fan speed regulator

Thermistor RT11 (at 25:)

Thermistor RT12 (at 25:)

Remote controller model



K/h

"

rpm

k"

MSH-GA50VB

Single phase

230V, 50Hz

768/642/528

0.3

0.30

RC4V32-AA

WHT-BLK 293

BLK-RED 146

1,100O325O258

42/38/34

1,070/920/780

KP0A, KM04A

Cooling Heating

MSH-GA60VB

Single phase

230V, 50Hz

0.3

0.30

RC4V32-AA

WHT-BLK 293

BLK-RED 146

1,100O325O258

KP0A, KM04A

Cooling

768/672/588

45/41/37

1,070/960/850

Heating

768/642/528

45/40/34

1,070/920/780

Electrical

data

Fan

motor

Special

remarks

Capacity

NOTE: Test conditions are based on ISO 5151.

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

Outdoor Dry-bulb temperature 35:Wet-bulb temperature (24:)

Heating : Indoor Dry-bulb temperature 20:Wet-bulb temperature 15.5:

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

Indoor-Outdoor piping length : 5m

Indoor model

Function

Power supply

Air flow

(High/Med./Low)

Breaker capacity

Running current

Power input

Power factor

Fan motor current

Model

Winding

resistance (at 20:)

Dimensions WOHOD

Weight

Air direction

Sound level (High/Med./Low)

Fan speed (High/Med./Low)

Fan speed regulator

Thermistor RT11 (at 25:)

Thermistor RT12 (at 25:)

Thermistor RT13 (at 25:)

Remote controller model



K/h

"

rpm

k"



MSH-GA80VB

Single phase

230V, 50Hz

0.34

RC4V40-AA

WHT-BLK 138.2

BLK-RED 159.0

1,100O325O258

47/42/37

KP0A, KM04A

Cooling

960/822/684

1,310/1,130/970

Heating

960/834/732

1,310/1,150/1,020

Electrical

data

Fan

motor

Special

remarks

Capacity

OB367D-1.qxp 12.1.13 7:49 AM Page 5

OB367D

NOISE CRITERIA CURVES

10 63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

Test conditions,

Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:

SPL(dB(A)) LINE

High

FAN SPEED

Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:

MSH-GA80VB

10 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 27: Wet-bulb temperature 19:

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SPL(dB(A)) LINE

High

FAN SPEED

Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10 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 27: Wet-bulb temperature 19:

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

SPL(dB(A)) LINE

High

FAN SPEED

Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

MSH-GA50VB MSH-GA60VB

INDOOR UNIT WALL

MICROPHONE

0.8m

OB367D-1.qxp 12.1.13 7:49 AM Page 6

OB367D

OUTLINES AND DIMENSIONS

258

159

7.5

315

255.547

2.5

98 173

98 173414.5 414.5

253

791

1068

1100

325

Air out

Air in

Insulation [28

Drain hose [16

(Connected part O.D)

Installation plate

Wall hole [75

Wireless remote controller

Installation plate Indoor unit

{

Liquid line [6.35-0.5m

Gas line [12-0.43m

Insulation [50 O.D

[32 I.D

{

Liquid line [9.52-0.5m

Gas line [12-0.43m

Insulation [50 O.D

[32 I.D

for MSH-GA50/60VB

for MSH-GA80VB

Power supply cord

Lead to right 2.0m

Lead to left 1.0m

MSH-GA50VB

MSH-GA60VB

MSH-GA80VB

Unit: mm

OB367D-1.qxp 12.1.13 7:49 AM Page 7

OB367D

WIRING DIAGRAM

MSH-GA50VB

MSH-GA60VB

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

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

3.Symbols below indicate. : Connector

: Terminal block

NOTES:

SYMBOL

C11

F11

HIC1

NAME

INDOOR FAN CAPACITOR

FUSE (3.15A)

DC/DC CONVERTER

INDOOR FAN MOTOR (INNER FUSE)

SYMBOL

MV1

MV2

NR11

RT11

NAME

VANE MOTOR (HORIZONTAL)

VANE MOTOR (VERTICAL)

VARISTOR

ROOM TEMPERATURE THERMISTOR

SYMBOL

RT12

SR141

NAME

INDOOR COIL THERMISTOR

SOLID STATE RELAY

TERMINAL BLOCK

TAB12

REMOTE

CONTROLLER

RECEIVER

P.C.BOARD

DISPLAY

P.C.BOARD

102

CN 101

RED

BLU

MV2

CN201

BRN

F11

ELECTRONIC CONTROL

P.C. BOARD

NR11

CN211

111 RT11

RT12

MV2

151

CN112

MV1

HIC1

C11

121

SR141

RED

WHT

BRN

YLW

GRY

BLK

GRN/YLW

BLU

BRN

TO OUTDOOR

UNIT

CONNECTING

12V

CIRCUIT

BREAKER

POWER

SUPPLY

CORD

~/N 230V

50Hz

12V

TO OUTDOOR

UNIT

CONNECTING

BRN

BLU

GRN/YLW

BLK

GRY

YLW

BRN

WHT

RED

SR141 4

121

C11

HIC1

MV1

RT13

CN112

151

MV2

RT12

RT11

111

CN211

NR11

ELECTRONIC CONTROL

P.C. BOARD

F11

LBRN

CN201

MV2

BLU

RED

101

102

DISPLAY

P.C.BOARD RECEIVER

P.C.BOARD

REMOTE

CONTROLLER

TAB12

PE CIRCUIT

BREAKER

POWER

SUPPLY

CORD

~/N 230V

50Hz

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

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

3.Symbols below indicate. : Connector

: Terminal block

NOTES:

SYMBOL

SR141

SYMBOL

MV2

NR11

RT11

RT12

RT13

SYMBOL

C11

F11

HIC1

MV1

INDOOR FAN CAPACITOR

FUSE(3.15A)

DC/DC CONVERTER

INDOOR FAN MOTOR(INNER PROTECTOR)

VANE MOTOR(HORIZONTAL)

VANE MOTOR(VERTICAL)

VARISTOR

ROOM TEMPERATURE THERMISTOR

INDOOR COIL THERMISTOR (MAIN)

INDOOR COIL THERMISTOR (SUB)

SOLID STATE RELAY

TERMINAL BLOCK

NAME NAME NAME

MSH-GA80VB

OB367D-1.qxp 12.1.13 7:49 AM Page 8

OB367D

REFRIGERANT SYSTEM DIAGRAM

MSH-GA80VB

Indoor

heat

exchanger

Flared connection

Room temperature

thermistor

RT11

Indoor coil

thermistor

RT13(sub)

Flared connection

Refrigerant pipe [15.88

(with heat insulator)

Refrigerant pipe [9.52

(with heat insulator)

Indoor coil

thermistor

RT12(main)

Strainer

#50

Refrigerant flow in cooling

Refrigerant flow in heating

MSH-GA50VB

Indoor

heat

exchanger

Room temperature

thermistor

RT11

Refrigerant pipe [12.7

(with heat insulator)

Flared connection

Indoor coil

thermistor

RT12

Refrigerant pipe [6.35

(with heat insulator)

Distributor

MSH-GA60VB

Indoor

heat

exchanger

Room temperature

thermistor

RT11

Refrigerant pipe [15.88

(with heat insulator)

Flared connection

Indoor coil

thermistor

RT12

Refrigerant pipe [6.35

(with heat insulator)

Distributor

Unit:mm

OB367D-1.qxp 12.1.13 7:49 AM Page 9

OB367D

SERVICE FUNCTIONS

Table 1

No. 1 unit

No. 2 unit

No. 3 unit

No. 4 unit

1 unit operation

No modification

–

2 units operation

Same as at left

Solder J1

–

3 units operation

Same as at left

Solder J2

–

4 units operation

Same as at left

Solder both J1 and J2

8-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION

A maximum of 4 indoor units with wireless remote controllers can be used in a room.

In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be

modified according to the number of the indoor unit.

How to modify the remote controller P.C. board

Remove batteries before modification.

The board has a print as shown below :

8-1. TIMER SHORT MODE

For service, set time can be shortened by short circuit of JPG and JPS on the electronic control P.C. board.

The time will be shortened as follows. (Refer to 9-6.)

Set time : 1 minute ➔ 1-second

Set time : 3 minute ➔ 3-second (It takes 3 minutes for the compressor to start operation. However, the starting time is

shortened by short circuit of JPG and JPS.)

The P.C. board has the print “J1” and “J2”. Solder “J1” and “J2” according to the number of indoor unit as shown in Table 1.

After modification, press the RESET button.

MSH-GA50VB

MSH-GA60VB

MSH-GA80VB

How to set the remote controller exclusively for particular indoor unit

After you turn the breaker ON, the first remote controller that sends the signal to the indoor unit will be regarded as the

remote controller for the indoor unit.

The indoor unit will only accept the signal from the remote controller that has been assigned to the indoor unit once they are

set. The setting will be cancelled if the breaker has turned off, or the power supply has shut down.

Please conduct the above setting once again after the power has restored.

NOTE : For modification, take out the batteries and press the OPERATE/ STOP (ON/ OFF) button 2 or 3 times at first.

After modification, put back the batteries then press the RESET button.

Remote controller model : KM04A

Remote controller model : KP0A

OB367D-1.qxp 12.1.13 7:49 AM Page 10

OB367D

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