Mitsubishi Electric MSZ-LN18VGW-E1 Bedienungsanleitung

Models

MSZ-LN18VGW -E1 MSZ-LN50VGW -E1 , ER1

MSZ-LN18VGV -E1 MSZ-LN50VGV -E1 , ER1

MSZ-LN18VGB -E1 MSZ-LN50VGB -E1 , ER1

MSZ-LN18VGR -E1 MSZ-LN50VGR -E1 , ER1

MSZ-LN25VGW -E1 , ER1 MSZ-LN60VGW -E1 , ER1

MSZ-LN25VGV -E1 , ER1 MSZ-LN60VGV -E1 , ER1

MSZ-LN25VGB -E1 , ER1 MSZ-LN60VGB -E1 , ER1

MSZ-LN25VGR -E1 , ER1 MSZ-LN60VGR -E1 , ER1

MSZ-LN35VGW -E1 , ER1

MSZ-LN35VGV -E1 , ER1

MSZ-LN35VGB -E1 , ER1

MSZ-LN35VGR -E1 , ER1

INDOOR UNIT

SERVICE MANUAL No. OBH766

REVISED EDITION-B

CONTENTS

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

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

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

4. NOISE CRITERIA CURVE ································ 5

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

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

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

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

9. MICROPROCESSOR CONTROL ··················· 12

10. TROUBLESHOOTING····································· 22

11. DISASSEMBLY INSTRUCTIONS···················· 39

PARTS CATALOG (OBB766)

NOTE:

RoHS compliant products have <G> mark on the spec name plate.

Outdoor unit service manual

MUZ-LN•VG Series (OBH767)

MUZ-LN•VGHZ Series (OBH768)

OBH766 REVISED EDITION-A is void.

Revision B:

• MSZ-LN18VGW/V/B/R- E1 have been

added.

MSZ-LN25VGW - E1 , ER1

MSZ-LN25VGV - E1 , ER1

MSZ-LN25VGB - E1 , ER1

MSZ-LN25VGR - E1 , ER1

MSZ-LN35VGW - E1 , ER1

MSZ-LN35VGV - E1 , ER1

MSZ-LN35VGB - E1 , ER1

MSZ-LN35VGR - E1 , ER1

1. New model

(Wi-Fi interface has been set as a standard part.)

MSZ-LN18VGW - E1

MSZ-LN18VGV - E1

MSZ-LN18VGB - E1

MSZ-LN18VGR - E1

1. New model

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.

TECHNICAL CHANGES

These models are compatible with the outdoor units with low standby power control.

Connecting these models to the MUZ-LN·VG-series outdoor units enables the low standby power control. Refer to the techni-

cal guide about the low standby power control.

These models may be connected to the MUZ-LN·VG series after once connected to the MXZ series and operated, for exam-

ple because of relocation. In that case, the MUZ-LN·VG series outdoor units will not operate without taking a step. Follow the

procedure "Deleting the memorized abnormal condition" described in 10-2.1.

Revision A:

• For Wi-Fi interface, 10. TROUBLE SHOOTING has been modified.

Revision B:

• MSZ-LN18VGW/V/B/R- E1 have been added.

MSZ-LN50VGW - E1 , ER1

MSZ-LN50VGV - E1 , ER1

MSZ-LN50VGB - E1 , ER1

MSZ-LN50VGR - E1 , ER1

MSZ-LN60VGW - E1 , ER1

MSZ-LN60VGV - E1 , ER1

MSZ-LN60VGB - E1 , ER1

MSZ-LN60VGR - E1 , ER1

OBH766B

ACCESSORIES

PART NAMES AND FUNCTIONS

Operation indicator lamp

Remote control

receiving section

Emergency operation

switch

Horizontal

vane

Air inlet

Air ¿OWHU

Air cleaning filter

(Deodorizing filter, black)

(Silverionized air purifier

filter, blue, option)

Front panel

Air outlet

Air purifying

device

i-see sensor

(Air purifying)

(Power)

Spec name plate

Wi-Fi interface

Remote controller

Model

MSZ-LN18VGW

MSZ-LN18VGV

MSZ-LN18VGB

MSZ-LN18VGR

MSZ-LN25VGW

MSZ-LN25VGV

MSZ-LN25VGB

MSZ-LN25VGR

MSZ-LN35VGW

MSZ-LN35VGV

MSZ-LN35VGB

MSZ-LN35VGR

MSZ-LN50VGW

MSZ-LN50VGV

MSZ-LN50VGB

MSZ-LN50VGR

MSZ-LN60VGW

MSZ-LN60VGV

MSZ-LN60VGB

MSZ-LN60VGR

Installation plate 1

Installation plate ﬁxing screw

4 × 25 mm 5

Wireless remote controller 1

Felt tape

(For left or left-rear piping) 1

Corner box R 4

Corner box L 4

Battery (AAA) for remote controller 2

Air cleaning ﬁlter

(Deodorizing ﬁlter, black) 1

Air purifying device 1

MSZ-LN18VGW MSZ-LN25VGW MSZ-LN35VGW MSZ-LN50VGW MSZ-LN60VGW

MSZ-LN18VGV MSZ-LN25VGV MSZ-LN35VGV MSZ-LN50VGV MSZ-LN60VGV

MSZ-LN18VGB MSZ-LN25VGB MSZ-LN35VGB MSZ-LN50VGB MSZ-LN60VGB

MSZ-LN18VGR MSZ-LN25VGR MSZ-LN35VGR MSZ-LN50VGR MSZ-LN60VGR

OBH766B

Indoor model

MSZ-LN18VGW

MSZ-LN18VGV

MSZ-LN18VGB

MSZ-LN18VGR

MSZ-LN25VGW

MSZ-LN25VGV

MSZ-LN25VGB

MSZ-LN25VGR

MSZ-LN35VGW

MSZ-LN35VGV

MSZ-LN35VGB

MSZ-LN35VGR

MSZ-LN50VGW

MSZ-LN50VGV

MSZ-LN50VGB

MSZ-LN50VGR

MSZ-LN60VGW

MSZ-LN60VGV

MSZ-LN60VGB

MSZ-LN60VGR

Power supply Single phase 230 V, 50 Hz

Electrical

data

Power input 1 Cooling W20 24 29 40

Heating 29 34 40

Running current

1Cooling A0.21 0.23 0.28 0.37

Heating 0.28 0.33 0.37

Fan

motor

Model RC0J30-ME

Current 1Cooling A0.21 0.23 0.28 0.37

Heating 0.28 0.28 0.33 0.37

Dimensions W × H × D mm 890 × 307 × 233

Weight kg 15.5

Special remarks

Air direction 5

Airﬂow

Cooling

Super High

m3/h

714 768 834 942

High 528 528 636 762

Med. 426 426 528 636

Low 348 348 450 528

Silent 258 258 342 426

Heating

Super High

m3/h

864 822 942 942

High 510 510 642 816

Med. 426 426 510 690

Low 342 342 384 564

Silent 240 258 324 390

Sound level

Cooling

Super High

dB(A)

42 43 46 49

High 36 36 39 45

Med. 29 29 35 41

Low 23 24 31 37

Silent 19 19 27 29

Heating

Super High

dB(A)

45 45 47 49

High 36 36 39 45

Med. 29 29 34 41

Low 24 24 29 37

Silent 19 19 25 29

Fan speed

Cooling

Super High

rpm

1,030 1,090 1,160 1,280

High 820 820 940 1,080

Med. 700 700 820 940

Low 610 610 730 820

Silent 500 500 600 700

Heating

Super High

rpm

1,190 1,150 1,280 1,280

High 800 800 950 1,140

Med. 700 700 800 1,000

Low 600 600 650 860

Silent 480 500 580 660

Fan speed regulator 5

Remote controller model W: SG16L V: XG16A B: XG16C R: XG16B

NOTE: Test conditions are based on ISO 5151.

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

Outdoor Dry-bulb temperature 35°C

Heating: Indoor Dry-bulb temperature 20°C

Outdoor Dry-bulb temperature 7°C Wet-bulb temperature 6°C

1 Measured under rated operating frequency.

SPECIFICATION

Specifications and rating conditions of main electric parts

Fuse (F11) T3.15AL250 V

Horizontal vane motor (MV1) 12 V DC

Vertical vane motor (MV2) 12 V DC

i-see SENSOR MOTOR (MT) 12 V DC

Varistor (NR11) 470 V

Terminal block (TB) 3P

OBH766B

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

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

NC-10

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

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

NC-10

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

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

NC-10

NOISE CRITERIA CURVE

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

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

NC-10

MSZ-LN18VGW MSZ-LN18VGB

MSZ-LN18VGV MSZ-LN18VGR MSZ-LN25VGW MSZ-LN25VGB

MSZ-LN25VGV MSZ-LN25VGR

MSZ-LN35VGW MSZ-LN35VGB

MSZ-LN35VGV MSZ-LN35VGR MSZ-LN50VGW MSZ-LN50VGB

MSZ-LN50VGV MSZ-LN50VGR

OBH766B

COOLING

FUNCTION SPL(dB(A)) LINE

Super High

FAN SPEED

HEATING

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

NC-10

MSZ-LN60VGW MSZ-LN60VGB

MSZ-LN60VGV MSZ-LN60VGR

Test conditions

Cooling: Dry-bulb temperature 27 °C

Wet-bulb temperature 19 °C

Heating: Dry-bulb temperature 20 °C

INDOOR UNIT WALL

MICROPHONE

0.8m

OBH766B

Unit: mm

890

505

38.5

5669

1240

176212

225 22581 81

85360

48 217.5

259

385

217.5

259

38.5

127

74.5

21.5

57 150

683

28.523.5 95

118

100

180.5

33.5

303

874

237.5

7.5 48

307

233

MSZ-LN18/25/35/50VGW

PIPING

INSULATION ø35 O.D

LIQUID LINE

6.35 - 0.5m

(FLARED CONNECTION

6.35)

GAS LINE

9.52 - 0.45m

(FLARED CONNECTION

9.52)

DRAIN HOSE INSULATION

CONNECTED PART

16 O.D

REMOTE CONTROLLER

T01

AIR OUT

AIR IN INSTALLATION PLATE

DRAIN HOSE

INSTALLATION PLATE 11×20 OBLONG HOLE

11×26 OBLONG HOLE

INDOOR UNIT

PIPING

WALL HOLE ø65

MSZ-LN60VGW

PIPING

INSULATION

37 O.D

LIQUID LINE

6.35 - 0.5m

(FLARED CONNECTION

6.35)

GAS LINE

9.52 - 0.45m

(FLARED CONNECTION

12.7)

DRAIN HOSE INSULATION

CONNECTED PART

16 O.D

T01

MSZ-LN18/25/35/50VGV,VGB,VGR

MSZ-LN60VGV,VGB,VGR

PIPING

INSULATION

35 O.D

LIQUID LINE

6.35 - 0.5m

(FLARED CONNECTION

6.35)

GAS LINE

9.52 - 0.45m

(FLARED CONNECTION

9.52)

DRAIN HOSE INSULATION

CONNECTED PART

16 O.D

T02

PIPING

INSULATION

37 O.D

LIQUID LINE

6.35 - 0.5m

(FLARED CONNECTION

6.35)

GAS LINE

9.52 - 0.45m

(FLARED CONNECTION ø12.7)

DRAIN HOSE INSULATION

CONNECTED PART

16 O.D

T02

193

60 19

193

60 21.4

IN CASE OF T01

IN CASE OF T02

REMOTE CONTROLLER

REMOTE CONTROLLERREMOTE CONTROLLER

OUTLINES AND DIMENSIONS

MSZ-LN18VGW MSZ-LN25VGW MSZ-LN35VGW MSZ-LN50VGW MSZ-LN60VGW

MSZ-LN18VGV MSZ-LN25VGV MSZ-LN35VGV MSZ-LN50VGV MSZ-LN60VGV

MSZ-LN18VGB MSZ-LN25VGB MSZ-LN35VGB MSZ-LN50VGB MSZ-LN60VGB

MSZ-LN18VGR MSZ-LN25VGR MSZ-LN35VGR MSZ-LN50VGR MSZ-LN60VGR

OBH766B

WIRING DIAGRAM

MSZ-LN50VGW

MSZ-LN50VGV

MSZ-LN50VGB

MSZ-LN50VGR

MSZ-LN18VGW MSZ-LN25VGW MSZ-LN35VGW MSZ-LN60VGW

MSZ-LN18VGV MSZ-LN25VGV MSZ-LN35VGV MSZ-LN60VGV

MSZ-LN18VGB MSZ-LN25VGB MSZ-LN35VGB MSZ-LN60VGB

MSZ-LN18VGR MSZ-LN25VGR MSZ-LN35VGR MSZ-LN60VGR

OBH766B

Indoor

heat

exchanger

Flared connection

Room temperature

thermistor

RT11

Flared connection

Refrigerant pipe ø9.52

(with heat insulator)

Refrigerant pipe ø6.35

(with heat insulator)

Indoor coil

thermistor

RT12 (main)

Indoor coil

thermistor

RT13 (sub)

Refrigerant flow in cooling

Refrigerant flow in heating

Unit: mm

REFRIGERANT SYSTEM DIAGRAM

Indoor

heat

exchanger

Flared connection

Room temperature

thermistor

RT11

Flared connection

Refrigerant pipe ø9.52 (LN50)

ø12.7 (LN60)

(with heat insulator)

Refrigerant pipe ø6.35

(with heat insulator)

Indoor coil

thermistor

RT12 (main)

Indoor coil

thermistor

RT13 (sub)

Refrigerant flow in cooling

Refrigerant flow in heating

MSZ-LN18VGW MSZ-LN25VGW MSZ-LN35VGW

MSZ-LN18VGV MSZ-LN25VGV MSZ-LN35VGV

MSZ-LN18VGB MSZ-LN25VGB MSZ-LN35VGB

MSZ-LN18VGR MSZ-LN25VGR MSZ-LN35VGR

MSZ-LN50VGW MSZ-LN60VGW

MSZ-LN50VGV MSZ-LN60VGV

MSZ-LN50VGB MSZ-LN60VGB

MSZ-LN50VGR MSZ-LN60VGR

OBH766B

8-1. TIMER SHORT MODE

For service, the following set time can be shortened by bridging the timer short mode point on the electronic control P.C.

board.

(Refer to 10-7.)

• The set time for the ON/OFF timer can be reduced to 1 second for each minute.

• After the breaker is turned on, the time for starting the compressor, which normally takes 3 minutes, can be reduced to 1

minute. Restarting the compressor, which takes 3 minutes, cannot be reduced.

8-2. HOW TO SET REMOTE CONTROLLER EXCLUSIVELY FOR A PARTICULAR INDOOR UNIT

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

To operate the indoor units individually with each remote controller, assign a number to each remote controller according

to the number of the indoor unit.

This setting can be set only when all the following conditions are met:

• The remote controller is powered OFF.

• Weekly timer is not set.

• Weekly timer is not being edited.

(1) Hold down button on the remote controller for 2 seconds to enter the pairing mode.

(2) Press button again and assign a number to each remote controller.

Each press of button advances the number in the following order: 1 →2 →3 →4.

(3) Press button to complete the pairing setting.

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

remote controller for the indoor unit.

Once they are set, the indoor unit will only receive the signal from the assigned remote controller afterwards.

SERVICE FUNCTIONS

8-3. SETTING THE INSTALLATION POSITION

Be sure to set the remote controller according to the installed position of the indoor unit.

Installation position:

Left: Distance to objects (wall, cabinet, etc.) is less than 50 cm to the left

Center: Distance to objects (wall, cabinet, etc.) is more than 50 cm to the left and right

Right: Distance to objects (wall, cabinet, etc.) is less than 50 cm to the right

The installation position can be set only when all the following conditions are met:

• The remote controller is powered OFF.

• Weekly timer is not set.

• Weekly timer is not being edited.

(1) Hold down button on the remote controller for 2 seconds to enter the position setting mode.

(2) Select the target installation position by pressing button. (Each press of the button displays the

positions in order: center →right →left.)

(3) Press button to complete the position setting.

Installation position Left Center Right

Remote controller

display

(Left)(Center)(Right)

MSZ-LN18VGW MSZ-LN25VGW MSZ-LN35VGW MSZ-LN50VGW MSZ-LN60VGW

MSZ-LN18VGV MSZ-LN25VGV MSZ-LN35VGV MSZ-LN50VGV MSZ-LN60VGV

MSZ-LN18VGB MSZ-LN25VGB MSZ-LN35VGB MSZ-LN50VGB MSZ-LN60VGB

MSZ-LN18VGR MSZ-LN25VGR MSZ-LN35VGR MSZ-LN50VGR MSZ-LN60VGR

OBH766B

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