Mitsubishi MS-A08VD-P1, MS-A10VD-P1, MS-A13VD-P1 Service Manual

SERVICE MANUAL

SPLIT-TYPE, AIR CONDITIONERS

Wireless type Models

No. OB396

MS-A08VDMS-A10VDMS-A13VD-

Indication of model name

MS-A08VD MS-A10VD MS-A13VD -

P1 P1 P1

CONTENTS

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

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

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

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

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

6. REFRIGERANT SYSTEM DIAGRAM················6

7. SERVICE FUNCTIONS ······································7

8. TROUBLESHOOTING········································9

9. DISASSEMBLY INSTRUCTIONS ····················18

10. PARTS LIST······················································20

NOTE:

• This service manual describes technical data of indoor units.

• As for outdoor units MU-A08VD - ,MU-A10VD - and MU-A13VD - , refer to the service manual OB397.

P1P1P1

TECHNICAL CHANGES

MS-07UV - ➔ MS-A08VD -

MS-10UV - ➔ MS-A10VD MS-13UV - ➔ MS-A13VD -

1. Indoor unit has been changed.

• Front panel has been changed. (Grill ➔ Flat)

• Dimension has been changed. (850W

2. Easy clean function has been added.

3. Catechin air filter has been added.

4. Air cleaning filter has been added.

5. Fan motor has been changed.

6. Fan motor capacitor has been changed.

7. P.C. board has been changed.

8. Fin pattern of cooler has been changed.

9. Remote controller has been changed.

• OPERATE/STOP(ON/OFF) button and TEMPERATURE buttons have been remodeled to be luminous.

P1P1

o278Ho191D ➔ 815Wo278Ho244D)

Installation plate Installation plate fixing screw 4 x 25 mm Remote controller holder Fixing screw for 3 3.5 x 16 mm (Black) Battery (AAA) for remote controller Wireless remote controller Felt tape (Used for left or left-rear piping) Air cleaning filter

1 5 1 2 2 1 1 2

1 2 3 4 5 6 7 8

MS-A10VD -

MS-A08VD -

P1 P1

MS-A13VD -

PART NAMES AND FUNCTIONS

INDOOR UNIT

MS-A08VD MS-A10VD MS-A13VD -

Air cleaning filter (white bellows type)

Front panel Air inlet

Panel

Catechin air filter (with deodorizing)

Air outlet

Vertical vanes

Fan

Horizontal vane

Operation section

(When the front panel is opened)

Emergency operation switch

to Breaker

Power supply cord

Remote control receiving section

Remote controller

Display section

Operation indicator lamp Remote control

receiving section

ACCESSORIES

Indoor model

Function

Power supply

Air flow

(High/Medw/Loww) Power outlet Running current Power input Auxiliary heater Fan motor current Model Winding resistance(at 20:) Dimensions WOHOD Weight Air direction Sound level (High/Medw/Loww) Fan speed(High/Medw/Loww) Fan speed regulator Thermistor RT11(at 25:) Thermistor RT12(at 25:) Remote controller model

K /h

A A

A(kW)

rpm

k" k"

630/558

/486w

0.19 40

0.19

RC4V19-HA WHT-BLK 224 BLK-RED 318

42/36

/29

960/850w/740

Electrical

data

Fan

motor

Special

remarks

Capacity

630/498w/360w

0.17 35

0.17

RC4V19-JA WHT-BLK 283 BLK-RED 188

39/32

/26

960/760w/550

Cooling

Single phase

220-230-240V, 50Hz

815O278O244

3 10 10

MP04B

MS-A08VD - P1 MS-A10VD - P1 MS-A13VD - P1

REMOTE CONTROLLER

MS-A08VD MS-A10VD MS-A13VD -

Signal transmitting section

Operation display section

OPERATE/STOP (ON/OFF) button

ON/OFF

TOO

WARM

TOO

COOL

These buttons are able to store the light from nature, fluorescent lamp, etc and shine in the dark.

ECONO COOL button

POWERFUL COOL button

OPERATION SELECT button

TIMER MODE SELECT button

SPECIFICATION

I FEEL

COOL

DRYFAN

ECONO COOL

POWERFUL COOL

SELECT

FAN

VANE

TIMEMODE

RESET

TEMPERATURE buttons

FAN SPEED CONTROL button

VANE CONTROL button

TIME SET button

Indication of remote controller model is on back.

RESET button

NOTE: Test conditions are based on JIS C 9612.

Cooling : Indoor DB27°C / WB19°C Indoor-Outdoor piping length : 5 m W Reference value

Outdoor DB35°C / WB24°C

OUTLINES AND DIMENSIONS4

MS-A08VD MS-A10VD -

INDOOR UNIT

278

140

783

815

606

Installation plate

Indoor unit

149

17.5

Power supply cord Lead to right 1.0m Lead to left 0.3m

81.5

Air in

Air out

326326

242 5

7 or more

110

244

133.5

231.5

2.5

81.5

Wall hole

Installation plate

Liquid line Gas line

{

Insulation

Drain hose (Connected part O,D)

Insulation

[65

[6.35-0.5m

[9.52-0.43m

[37 O.D

[21 I.D

[16

[28

4.5

271

Unit : mm

Wireless remote controller

MS-A13VD -

INDOOR UNIT

278

140

606

783

815

Installation plate

Indoor unit

149

17.5

Power supply cord Lead to right 1.0m Lead to left 0.3m

Air in

Air out

242

7 or more

244

326326

Installation plate

Liquid line Gas line

{

Insulation

Drain hose

110

(Connected part O,D) Insulation

161.5161.5

218.5

2.5

81.581.5 Wall hole

[6.35-0.5m

[9.52-0.43m

[37 O.D

[21 I.D

[16

[28

17.5

258

[65

Wireless remote controller

WIRING DIAGRAM

MS-A08VD - MS-A10VD - MS-A13VD -

INDOOR UNIT

BRN

2 N

BLU

BRN

WHT

BLU

GRN/YLW

NAME

F12

BLU BLU

GRN

TO OUTDOOR UNIT CONNECTING

220-230-240V~

POWER SUPPLY CORD 220-230-240V

~/N 50Hz

SYMBOL

C11 F11 F12

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

INDOOR FAN CAPACITOR FUSE(3.15A) THERMAL FUSE(93:) INDOOR FAN MOTOR(INNER FUSE)

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

3. Symbols below indicate.

/: Terminal block, : Connector

MODELS WIRING DIAGRAM

BLU

LD103

151

SYMBOL

MV NR11 RT11 RT12

SAFETY DEVICE(FAN)

VANE MOTOR VARISTOR ROOM TEMPERATURE THERMISTOR INDOOR COIL THERMISTOR

P1P1P1

CN201

3 2 1

CN CN

1R1

109

125

NAME NAME

52C

F11

ELECTRONIC CONTROL P.C. BOARD

POWER MONITOR, RECEIVER P.C.BOARD

T11

NR11

SR141

SYMBOL

SR141

T11

52C

112

111

121

C11

3 5

CN211

REMOTE CONTROLLER

SOLID STATE RELAY TERMINAL BLOCK TRANSFORMER CONTACTOR

RT12 RT11

BLK GRY YLW BRN WHT RED

1 2 3

4 5 6

REFRIGERANT SYSTEM DIAGRAM

MS-A08VD MS-A10VD -

INDOOR UNIT

Indoor heat exchanger

RT11 Room

temperature thermistor

Indoor coil thermistor RT12

Refrigerant pipe (Option){9.52

(with heat insulator)

Flared connection

MS-A13VD -

INDOOR UNIT

Indoor heat exchanger

RT11 Room temperature thermistor

Indoor coil thermistor RT12

Unit : mm

Refrigerant pipe (Option){12.7

(with heat insulator)

Flared connection

Refrigerant pipe (Option){6.35

(with heat insulator)

Refrigerant pipe (Option){6.35

(with heat insulator)

Refrigerant flow in cooling

SERVICE FUNCTIONS

MS-A08VD MS-A10VD MS-A13VD -

7-1. TIMER SHORT MODE

For service, set time can be shortened by short circuit of JPG and JPS the electronic control P.C. board. The time will be shortened as follows. (Refer to 8-6.) 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.

7-2. 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 :

Remote controller model : MP04B

NOTE : For remodelling, take out the bat-

teries and push the OPERATE/STOP(ON/OFF)button twice or 3 times at first. After finish remodelling, put back the batteries then press the RESET button.

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.

JR07

IC101

CN151

SW1

CN112

CN111

CN201

52C

C11

CN211

CN1V1

CN1R1

CN121

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 Same as at left

Solder J2

–

4 units operation

Same as at left Same as at left Same as at left

Solder both J1 and J2

Table 1

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 only accepts 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.

7-3. AUTO RESTART FUNCTION

When the indoor unit is controlled with the remote controller, the operation mode, set temperature, and the fan speed are memorized by the indoor electronic control P.C.board. The “AUTO RESTART FUNCTION” sets to work the moment power has restored after power failure. Then, the unit will restart automatically. However if the unit is operated in “I FEEL CONTROL” mode before power failure, the operation is not memorized. In “I FEEL CONTROL” mode, the operation is decided by the initial room temperature.

Operation

1If the main power has been cut, the operation settings remain. 2After the power is restored, the unit automatically resumes the same operation

as the memory has recorded. However, it takes the compressor at least 3 minutes to get started.

How to release “AUTO RESTART FUNCTION”

1Turn off the main power for the unit. 2Pull out the indoor electronic control P.C. board and the power monitor, receiver

P.C. board. (Refer to 9-1.)

3Solder the Jumper wire to the JR07 on the indoor electronic control P.C.board.

(Refer to 8-6.)

NOTE:

•The operation settings are memorized when 10 seconds have passed after the indoor unit was operated with the remote

controller.

•If the main power is turned off or a power failure occurs while AUTO START/STOP timer is active, the timer setting is

cancelled.

•If the unit has been off with the remote controller before power failure, the auto restart function does not work as the

power button of the remote controller is off.

•To prevent breaker off due to the rush of starting current, systematize other home appliances not to turn on at the same

time.

•When some air conditioners are connected to the same supply system, if they are operated before power failure, the

starting current of all the compressors may flow simultaneously at restart. Therefore, the special counter-measures are required to prevent the main voltage-drop or the rush of the starting current by adding to the system that allows the units to start one by one.

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