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1-2. SELECTING THE INSTALLATION LOCATION

 

Note: 

When operating the air conditioner in low outside temperature, be sure to follow the 
instructions described below.

•  Never install the outdoor unit in a place where its air inlet/outlet side may be exposed 

directly to wind.

•  To prevent exposure to wind, install the outdoor unit with its air inlet side facing the 

wall.

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outlet side of the outdoor unit.

Avoid the following places for installation where air conditioner trouble is liable to occur.

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•  Where there is much machine oil.

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areas and factories, in which the properties of plastic could be changed and dam-

aged).

•  Salty places such as the seaside.

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•  Where there is high-frequency or wireless equipment.
•  Where there is emission of high levels of VOCs, including phthalate compounds, 

formaldehyde, etc., which may cause chemical cracking.

•  The appliance shall be stored so as to prevent mechanical damage from occurring.

‡ :KHUHDLUÀRZLVQRWEORFNHG

•  Where cool (or warm) air spreads over the entire room.
•  Rigid wall without vibration.
•  Where it is not exposed to direct sunshine. Do not expose to direct sunshine also 

during the period following unpacking to before use.

•  Where easily drained.
•  At a distance 1 m or more away from your TV and radio. Operation of the air condi-

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affected device.

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to make the infrared remote control operate the air conditioner normally. The heat 
from the lights may cause deformation or the ultraviolet may cause deterioration.

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•  Where it is away from the other heat or steam source.

•  Please ensure that the Router supports the WPA2-AES encryption setting before 

commencement of the installation of this indoor unit equipped with the Wi-Fi interface.

•  The End user should read and accept the terms and conditions of the Wi-Fi service before 

commencement of the installation of this indoor unit equipped with the Wi-Fi interface.

•  This indoor unit equipped with the Wi-Fi interface should not be installed and connected 

to any Mitsubishi Electric system which is to provide application critical cooling or heating.

REMOTE CONTROLLER 

•  Where it is easy to operate and easily visible.
•  Where children cannot touch it.

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controller are surely received by the indoor unit from that position (‘beep’ or ‘beep 
beep’ receiving tone sounds). 

Note: 

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remote controller may not be received.

OUTDOOR UNIT

•  Where it is not exposed to strong wind. If the outdoor unit is exposed to a wind during 

defrosting, the defrosting time will be longer.

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•  Where rain or direct sunlight can be avoided as much as possible.
•  Where neighbours are not annoyed by operation sound or hot (or cool) air.
•  Where rigid wall or support is available to prevent the increase of operation sound or 

vibration.

•  Where there is no risk of combustible gas leakage.
•  When installing the unit at a high level, be sure to secure the unit legs.
•  Where it is at least 3 m away from the antenna of TV set or radio. Operation of the 

air conditioner may interfere with radio or TV reception in areas where reception is 

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•  Please install it in an area not affected by snowfall or blowing snow. In areas with 

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Note:

It is advisable to make a piping loop near outdoor unit so as to reduce vibration 
transmitted from there.

 WARNING

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below.

LN50VG2: 2.5 m²
LN50VGHZ/60VG: 3.9 m²

When the indoor unit is connected to the multi type outdoor unit of R32 

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As for the details, please refer to the Installation Service Manual for New 
Refrigerant System.

INDOOR UNIT

*1 Connect to the power switch which has a gap of 3 mm or more when open to interrupt the source power phase. (When the 

power switch is shut off, it must interrupt all phases.)

*2 Use wires in conformity with design 60245 IEC 57.

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*4 Use a copper pipe or a copper-alloy seamless pipe.
*5 Be careful not to crush or bend the pipe during pipe bending.

*6 Refrigerant pipe bending radius must be 100 mm or more.

*7 If pipe length exceeds B m, additional refrigerant (R32) charge is required. (No additional charge is required for pipe leng

th 

less than B m.)

  Additional refrigerant = A × (pipe length (m) - B)

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 CAUTION

(Could lead to serious injury in particular environments when operated incorrectly.)

  Install an earth leakage breaker depending on the 

installation place.

 

If an earth leakage breaker is not installed, it could cause 
electric shock.

  Perform the drainage/piping work securely ac-

cording to the installation manual.

 

If there is defect in the drainage/piping work, water could 
drop from the unit, soaking and damaging household 
goods.

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the outdoor unit.

 

This could cause injury. 

  Do not install the outdoor unit where small ani-

mals may live.

 

If small animals enter and touch the electric parts inside 
the unit, it could cause a malfunction, smoke emission, 

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unit clean. 

■ 

Do not operate the air conditioner during interior 

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WKHÀRRU

  Before operating the air conditioner, ventilate the room 

well after such work is performed. Otherwise, it may 

cause volatile elements to adhere inside the air condi-

tioner, resulting in water leakage or scattering of dew.

■ 

To prevent damage from static electricity, touch 
a nearby metal body to discharge static electric-
ity from yourself before touching the indoor unit 
equipped with the Wi-Fi interface.

 

Static electricity from the human body may damage the 

Wi-Fi interface unit.

■ 

Do not use the indoor unit equipped with the 
Wi-Fi interface nearby other wireless devices, 
microwaves, cordless phones, or facsimiles.

 

It can cause malfunctions.

1-3. SPECIFICATIONS

Model

Power supply *1

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3LSHVL]H

(thickness *3, *4)

Maximum amount of 
refrigerant charge *7

Indoor unit

Outdoor unit

Rated Voltage

Frequency

Breaker 

capacity

Power supply *2

Indoor/outdoor  

connecting wire *2

Gas / Liquid

MSZ-LN18VG2

-

230 V

+]

-

-

4-core

1.0 mm²

ø9.52 / 6.35 mm

(0.8 mm)

-

MSZ-LN25VG2

MUZ-LN25VG2

10 A

3-core

1.0 mm²

1000 g

MUZ-LN25VGHZ2

1050 g

MSZ-LN35VG2

MUZ-LN35VG2

MUZ-LN35VGHZ2

12 A

3-core

1.5 mm²

MSZ-LN50VG2

MUZ-LN50VG2

16 A

3-core

2.0 mm²

1550 g

MUZ-LN50VGHZ

1910 g

MSZ-LN60VG2

MUZ-LN60VG

ø12.7 / 6.35 mm

(0.8 mm)

(LN25, 35/50/50HZ, 60)

Pipe length and height difference

Max. pipe length

20/30/30 m

Max. height difference

12/12/15 m

Max. number of bends *5, *6

10

Refrigerant adjustment A *7

20 g/m

No additional charge length B *7

10/15/7 m

Insulation thickness *8, *9 

8 mm

Summary of Contents for MSZ-LN18VG2

Page 1: ...F VKRFN WKH unit falling etc When plugging the power supply plug into the outlet make sure that there is no dust clogging or loose parts in both the outlet and the plug Make sure that the power supply plug is pushed com pletely into the outlet If there is dust clogging or loose parts on the power supply plug or the outlet it could cause electric shock or UH I ORRVH SDUWV DUH IRXQG RQ WKH SRZHU VXS...

Page 2: ... QVWDOO WKH XQLW KRUL RQWDOO Please install it in an area not affected by snowfall or blowing snow In areas with KHDY VQRZ SOHDVH LQVWDOO D FDQRS D SHGHVWDO DQG RU VRPH EDIÀH ERDUGV Note It is advisable to make a piping loop near outdoor unit so as to reduce vibration transmitted from there WARNING 7KH XQLW VKRXOG EH LQVWDOOHG LQ URRPV ZKLFK KDYH WKH ÀRRU VSDFH VSHFL HG below LN50VG2 2 5 m LN50VGH...

Page 3: ...QVWDOODWLRQ SODWH LQJ VFUHZ 4 25 mm 5 3 Wireless remote controller 1 4 Felt tape For left or left rear piping 1 5 Corner box R 4 6 Corner box L 4 7 Battery AAA for 3 2 8 LU FOHDQLQJ OWHU 1 9 Air purifying device 1 Outdoor unit 10 Drain socket VG type only 1 Air inlet LN25 35 50 50HZ 60 LN25 35 50 50HZ 60 3 When any 2 sides of left right and rear of unit are clear 4 The manufacturing year and month...

Page 4: ...drain piping as shown below Do not raise Accumulated drain water Air Waving Water leakage Water leakage Water leakage Tip of drain hose dipped in water Ditch At least 50 mm gap Downward slope Drain hose Soft hose I D 15 mm Drain hose Hard vinyl chloride pipe I D 30 mm Insert securely Different diameter joint 70 cm or more Fig 1 Fig 2 Fig 3 For future servicing give extra length to the connecting w...

Page 5: ...1 part about 90 degrees around the hinge point you have just created to put the parts together 3 Press the base of portion with the mark to snap into place When changing the part disassemble by moving the part in a reverse direction The parts that were not used may be necessary in the future if the air conditioner is relocated so ask customers to keep those parts 4 Attach the assembled corner box ...

Page 6: ...t any scratches Flare nut Die Fig 5 Fig 6 3 OUTDOOR UNIT INSTALLATION Copper pipe Wing nut type WARNING When installing the unit securely connect the refrigerant pipes before starting the compressor 3 1 CONNECTING WIRES FOR OUTDOOR UNIT 1 Open the service panel 2 Loosen terminal screw and connect indoor outdoor unit connecting wire A from the indoor unit correctly on the terminal block Be careful ...

Page 7: ...art operation automatically when power supply is resumed To the user After installing the unit make sure to explain the user about auto restart function If auto restart function is unnecessary it can be deactivated Consult the service representative to deactivate the function Refer to the service manual for details 4 PURGING PROCEDURES LEAK TEST AND TEST RUN Pressure gauge for R32 R410A Emergency ...

Page 8: ...river deeply into the holes 2 Pry off the right and left arm holders by moving the screwdriver down and towards the back wall 3 Remove the safety string from the upper center of the panel assembly Installation procedure 1 Install the panel assembly following the removal procedure in reverse 2 Be sure to press the positions as indicated by the arrows in order to attach the assembly completely to th...

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