Mitsubishi MSX-05NV- E2, MSX-05NV II- E1, MSX-09NV- E2, MSX-09NV II- E1, MSX-12NV- E2 Service Manual

SPLIT-TYPE AIR CONDITIONERS

SERVICE MANUAL

Wireless type
Models

MSX-05NV-

(WH) ●

MUX-10NV-

No. OB221

E1E2

MSX-09NV­MSX-12NV­MSX-05NV
MSX-09NV
MSX-12NV

(WH) ●

(WH) ●

22

-

22

-

22

-

MUX-18NV­MUX-24NV-

(WH) ●

(WH) ●

(WH) ●

CONTENTS

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

2. OUTLINES AND DIMENSIONS·························2

3. SERVICE FUNCTIONS ······································3

4. PARTS LIST ·······················································4

MUX-10NV­MUX-18NV­MUX-24NV-

E1E2

E1E2

E1E1

E1E1

E1E1

NOTE:This Service Manual covers only change points.

(MSX-05/09/12NV- ➔ MSX-05/09/12NV- )
(MSX-05/09/12NV- ➔ MSX-05/09/12NV2-)
Please refer to the Service Manual OB183 SECOND

EDITION for unchanged contents.
Please refer to the Service Manual OB183 SECOND
EDITION for MUX-10/18/24NV- .

E1

E2E1

E1E2

314.5323

2.5

186

191

223

266.5

46

41

225

84.5
9

133.5

84.5

225

93

183

13062560

275

815

17.5

783

72

7 or more

100

90

5

160

56

Liquid line {6.35-0.5m
Gas line {9.52-0.43m
Insulation {35 O.D

{19 I.D

Wireless remote controller

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

Installation plate

Indoor unit

Wall hole {65

Installation plate

Drain hose {16
Insulation {28

Air out

{

Air in

1

TECHNICAL CHANGES

MSX-10NV- ➔ MSX-10NV-

MSX-18NV- ➔ MSX-18NV­MSX-24NV- ➔ MSX-24NV-

1. Auto restart function has added.

2. INDOOR ELECTRONIC CONTROL P.C. BOARD has changed.

MSX-10NV- ➔ MSX-10NV22­MSX-18NV- ➔ MSX-18NV22­MSX-24NV- ➔ MSX-24NV22-

1. Indoor unit design has changed.

E2E1

E2E1

E2E1

E1E2

E1E2

E1E2

2

OUTLINES AND DIMENSIONS

INDOOR UNIT

MSX-05NV22- , MSX-09NV22­MSX-12NV22-

E1

E1E1

Unit : mm

2

3

C11

52C

CN201

CN112

CN121SW

CN111

IC101

CN211

CN151

JR07

SERVICE FUNCTIONS

1. 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.

How to set “AUTO RESTART FUNCTION”

1Turn off the main power for the unit.
2Removed the electronic control P.C. board and the display P.C.board. (See page 39.)
3Cut the RESISTOR JR07 on the indoor electronic control P.C.board.

Operation

1If the main power (220-240V AC) has been cut, the operation settings remain.
2After the power is restored, the unit restarts automatically according to the memory.(However, it takes at least 3 minutes

for the compressor to start running.)

Note:

•The operation settings are memorized when 10 seconds have passed after the remote controller was operated.

•If main power is cut while AUTO START/STOP timer is active ,the timer setting is cancelled when auto restart function

works.

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

power button of the remote controller is off.

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

time.

•When more than one air conditioners are connected under the same power system,compressor starting current as large

as that for all the compressors used flows at a time as soon as the units restart automatically.

Therefore, the specific counter-measures are required to prevent main voltage drop or the rush of starting current after

power failure by providing the system to allow the units to start in regular succession.

3

4

PARTS LIST

INDOOR UNIT
STRUCTURAL PARTS
MSX-05NV - (WH)
MSX-09NV - (WH)
MSX-12NV - (WH)

6

E2
E2
E2

1

5

4

2

No.

1

2
3
4
5
6

Optional parts

3

E2

Q'ty / unit

MSX-

E2

09NV-

(WH)

1

1
2
1
1
2

MSX-

12NV-

(WH)

1
1
2
1
1
2

E2

Symbol

Parts No. Parts Name Remarks

E02 315 000
E02 316 000
E02 317 000
E02 151 010
E02 164 100
E02 166 234
E02 151 970
E02 166 067

FRONT PANEL
FRONT PANEL
FRONT PANEL
GRILLE
AIR FILTER
BOX
INSTALLATION PLATE
SCREW CAP

in Wiring

Diagram

MSX-

05NV-

(WH)

1

1
2
1
1
2 2PCS/SET

4

INDOOR UNIT
STRUCTURAL PARTS
MSX-05NV22- (WH)
MSX-09NV22- (WH)
MSX-12NV22- (WH)

6

E1
E1
E1

1

5

4

2

No.

1

2
3
4
5
6

Optional parts

3

E1

Q'ty / unit

MSX-



09NV2-

(WH)

MSX-

E1

12NV2-

(WH)

E1

1

1
1
2
1
1
2

1

2

1

1

2

Symbol

Parts No. Parts Name Remarks

in Wiring

Diagram

E02 349 000
E02 350 000
E02 351 000
E02 339 010
E02 164 100
E02 166 234
E02 151 970
E02 166 067

FRONT PANEL
FRONT PANEL
FRONT PANEL
GRILLE
AIR FILTER
BOX
INSTALLATION PLATE
SCREW CAP

MSX-

05NV2-

(WH)

1

1
2
1
1
2 2PCS/SET

5

INDOOR UNIT

No.

Parts No. Parts Name Remarks

Q'ty / unit

MSX-05/09

MSX-12

Symbol

in Wiring

Diagram

Part number that are circled not shown in the figure.

1
2
3
4
5
6
7
8

9
10
11

12

13
14
15
16
17
18
19

E02 199 235
E02 166 040
E02 141 702
E02 151 303
E02 151 300
E02 151 505
E02 151 302
E02 151 509
E02 151 308
E02 151 307
E02 211 375
E02 211 452
E02 281 452
E02 152 395
E02 127 382
E02 164 081
E02 151 350
E02 085 385
E02 001 504
E02 199 520

NOZZLE(WH)
VANE(WH)
DRAIN HOSE
VANE MOTOR
INDOOR FAN MOTOR
RUBBER MOUNT
LINE FLOW FAN
BEARING MOUNT
ROOM TEMPERATURE THERMISTOR
INDOOR COIL THERMISTOR
TERMINAL BLOCK
ELECTRONIC CONTROL P.C.BOARD
ELECTRONIC CONTROL P.C.BOARD
POWER SUPPLY CORD
FUSE
ELECTRICAL BOX
INDOOR FAN CAPACITOR
VARISTOR
SLEEVE BEARING
FAN GUARD

1
1
1
1
1
2
1
1
1
1
1
1

1
1
1
1
1
1
1

1
1
1
1
1
2
1
1
1
1
1

1
1
1
1
1
1
1
1

RC4V19 ­2PCS/SET

AUTO RESTART
AUTO RESTART

3.15A

1.5µF/440VAC

MV
MF

RT11
RT12

TB

F11

C11

NR11

NV2-

E1

(WH)

NV-

E2

(WH)

NV-

E2

(WH)

NV2-

E1

(WH)
1
1
1
1
1
2
1
1
1
1
1
1

1
1
1
1
1
1
1

1
1
1
1
1
2
1
1
1
1
1

1
1
1
1
1
1
1
1

ELECTRICAL PARTS
MSX-05NV - (WH) MSX-09NV - (WH) MSX-12NV - (WH)
MSX-05NV22- (WH) MSX-09NV22- (WH) MSX-12NV22- (WH)

E2E2E2

E1E1E1

15

8

7

9

11

10

18

3

6

5

12

1

2

4

13

6

INDOOR UNIT
HEAT EXCHANGER
MSX-05NV - (WH)
MSX-09NV - (WH)
MSX-12NV - (WH)
MSX-05NV22- (WH)
MSX-09NV22- (WH)
MSX-12NV22- (WH)

E2
E2
E2

E1
E1
E1

1

No.

1

2

3

3

2

Q'ty / unit

Symbol

Parts No. Parts Name Remarks

in Wiring

Diagram

E02 151 620
E02 339 620
E02 155 620
E02 336 620
E02 151 666
E02 155 666
E02 151 667

INDOOR HEAT EXCHANGER
INDOOR HEAT EXCHANGER
INDOOR HEAT EXCHANGER
INDOOR HEAT EXCHANGER
UNION(GAS)
UNION(GAS)
UNION(LIQUID)

MSX-05/09

E2

NV-

(WH)

1

1

1

NV2-

(WH)

1

1

1

MSX-12

NV-

(WH)

E2

NV2-

(WH)

E1

E1

Remarks

1

1

{ 9.52
1
1

1
1

{ 12.7

{ 6.35

7

HEAD OFFICE MITSUBISHI DENKI BLDG.MARUNOUCHI TOKYO100 TELEX J24532 CABLE MELCO TOKYO

CC

Copyright 1997 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD.
Issued in Jan. 1998 NO. OB221 128
Printed in Japan

New publication, effective Jan. 1998.
Specifications subject to change without notice.