background image

(B)

(I)

(K)

(G)

(E)

(C)

(7)

(3)

(4)

(6)

(5)

(D)

(F)

(2)

(1)

(A)

110 mm  

or more

100 mm  

or more

100 mm 

or more

350 mm 

or more

100 mm 

or more

200 mm 

or more

Open two sides of left, 
right, or rear side.

1-4. INSTALLATION DIAGRAM

2-1. FIXING OF INSTALLATION PLATE

•  Find a structural material (such as a stud) in the wall and fix installation plate (1) hori-

zontally by tightening the fixing screws (2) firmly.

•  To prevent installation plate (1) from vibrating, be sure to install the fixing screws in the 

holes indicated in the illustration. For added support, fixing screws may also be installed 
in other holes.

•  When bolts recessed in the concrete wall are to be utilized, secure installation plate (1) 

using 11 × 20 · 11 × 26 oval hole (450 mm pitch).

•  If the recessed bolt is too long, change it for a shorter one available in the market.

2-2. WALL HOLE DRILLING

1) Determine the wall hole position.
2) Drill a ø65 mm hole. The outdoor side should be 5 to 7 

mm lower than the indoor side.

3) Insert wall hole sleeve (C).

2-3. CONNECTING WIRES FOR INDOOR UNIT

You can connect indoor/outdoor lead wire without removing the front panel.
1) Open the front panel.
2) Remove VA clamp.
3)  Pass indoor/outdoor unit connecting wire (A) from the back of the indoor unit and process 

the end of the wire.

4) Loosen terminal screw, and connect first the earth wire, then indoor/outdoor unit con-

necting wire (A) to the terminal block. Be careful not to make mis-wiring. Fix the wire to 
the terminal block securely so that no part of its core is appeared, and no external force 
is conveyed to the connecting section of the terminal block. 

5) Firmly tighten the terminal screws to prevent them from loosening. After tightening, pull 

the wires lightly to confirm that they do not move.

6) Secure indoor/outdoor unit connecting wire (A) and the earth wire with the VA clamp. 

Never fail to hook the left claw of the VA clamp. Attach the VA clamp securely. 

ACCESSORIES

Check the following parts before installation.
<Indoor unit>

(1) Installation plate

1

(2)

Installation plate fixing screw 
4 × 25 mm

5

(3) Remote controller holder

1

(4)

Fixing screw for (3) 
3.5 × 16 mm (Black)

2

(5) Battery (AAA) for (6)

2

(6) Wireless remote controller

1

(7)

Felt tape 
(For left or left-rear piping)

1

PARTS TO BE PROVIDED 
AT YOUR SITE

(A) Indoor/outdoor unit connecting wire*

1

(B) Extension pipe

1

(C) Wall hole sleeve

1

(D) Wall hole cover

1

(E) Pipe fixing band

2 to 5

(F) Fixing screw for (E) 4 × 20 mm

2 to 5

(G) Piping tape

1

(H) Putty

1

(I)

Drain hose 
(or soft PVC hose, 15 mm inner 
dia. or hard PVC pipe VP16)

(J) Refrigeration oil

1

(K) Power supply cord*

1

Units should be installed by licensed contractor 
according to local code requirements.

Liquid pipe

Gas pipe

Felt tape (7) 

Indoor/outdoor unit 
connecting wire (A)

Piping tape (G)

Indoor unit

Wall hole 
sleeve (C)

Cut off the 
extra length.

Pipe fixing band 
(E)

Be sure to use wall hole 
sleeve (C) to prevent in-
door/outdoor connecting 
wire (A) from contacting 
metal parts in the wall 
and to prevent damage by 
rodents in case the wall 
is hollow.

Wall hole cover (D)

Seal the wall hole 

gap with putty (H).

Fix the pipe to wall 

with pipe fixing 
band (E).

Fixing screw (F)

After the leak test, apply 

insulating material tightly so 
that there is no gap.

When the piping is to be 

attached to a wall containing 
metals (tin plated) or metal 
netting, use a chemically 
treated wooden piece 20 mm 
or thicker between the wall 
and the piping or wrap 7 to 8 
turns of insulation vinyl tape 
around the piping.
To use existing piping, per-
form COOL operation for 
30 minutes and pump down 
before removing the old air 
conditioner. Remake flare 
according to the dimension 
for new refrigerant.

2.  INDOOR UNIT INSTALLATION

2-4. PIPE FORMING AND DRAIN PIPING

Pipe Forming

•  Place the drain hose below the refrigerant piping.
•  Make sure that the drain hose is not heaved or snaked.
•  Do not pull the hose when applying the tape.
•  When the drain hose passes the room, be sure to wrap 

insulation material (obtainable at a store) around it.

* Note:

Place indoor/outdoor unit connecting wire (A) and 
power supply cord (K)  at least 1 m away from the 
TV antenna wire.

Appearance of the outdoor unit may differ from some models.

100 mm  or more

Air inlet

Air outlet

Outdoor unit installation

4-10 mm × 16 mm slot

718 mm

70 mm

500 mm

300 mm

255 mm

264-280 mm

40 mm

12 mm 

or more

54 mm or 

more/ 130 mm 

or more for left and 

left back piping 

(using spacer)

Wall

Outdoor 
side

5-7 mm

ø65 mm

Installation plate (1)

Plumb

Align the plumb 

line with the 
mark 

Center of  
ø65 mm hole

110 mm  

or more

100 mm  

or more 

Bind the line to the center hole.

54 mm or more

130 mm or more for left and left 
back piping (using spacer)

Ceiling

Wall

Wall

Fixing screw (2)

* Same for left hole.

Insert 

the 
scale. *

Align the 

scale with 
the line. *

100 mm

Level 

Terminal block

Fixing screw

Indoor/outdoor unit 
connecting wire (A)

VA clamp

Lead wire

15 mm

35 mm

•  For future servicing, give extra length to 

the connecting wires.

•  Make earth wire a little longer than others. 

(More than 60 mm)

•  Do not fold the excess wire, or cram it into 

small space. Take caution not to damage 
the wires.

•  Be sure to attach each screw to its corre-

spondent terminal when securing the cord 
and/or the wire to the terminal block.

Note: 

Do not place the wires between the 

indoor unit and the installation plate (1). 
Damaged wire could cause heat genera-
tion or fire. 

Indoor terminal block

Indoor/outdoor 
unit connecting 
wire (A)

Outdoor terminal block

Earth wire 
(green/yellow)

2 N L

2 N L

Summary of Contents for MSZ-GF20VA

Page 1: ...ab normally high This could cause the pipes to burst or injury N When installing the unit securely connect the refrigerant pipes before starting the compressor If the compressor is started before the refrigerant pipes are connected and when the stop valve is open air could be drawn in and the pressure in the refrigeration cycle could become abnormally high This could cause the pipes to burst or in...

Page 2: ...code requirements Liquid pipe Gas pipe Felt tape 7 Indoor outdoor unit connecting wire A Piping tape G Indoor unit Wall hole sleeve C Cut off the extra length Pipe fixing band E Be sure to use wall hole sleeve C to prevent in door outdoor connecting wire A from contacting metal parts in the wall and to prevent damage by rodents in case the wall is hollow Wall hole cover D Seal the wall hole gap wit...

Page 3: ... 3 Using piping tape G apply taping starting from the entry of outdoor unit Stop the end of piping tape G with tape with adhesive agent attached When piping have to be arranged through above ceiling closet or where the temperature and humidity are high wind additional commercially sold insulation to prevent condensa tion Rear right or downward piping 1 Put the refrigerant piping and the drain hose...

Page 4: ...sides of gas pipe and liquid pipe Operating without fully opening lowers the performance and this causes trouble Caution After test run or remote signal reception check turn off the unit with the E O SW or the remote controller before turning off the power supply Not doing so will cause the unit to start operation automatically when power supply is resumed To the user After installing the unit mak...

Page 5: ...H35VE MSZ EF25 35VE3 MUZ EF25 35VE Installation Manual JG79A476H01 MSZ FH25 35 and MUZ FH25 35 Declaration of Conformity MSZ FH25 35 Parts Catalogue OBB624B MSZ FH25 35 Service Manual OBH623B MSZ FH25 50VE Instruction Book SG79F661H03 ...

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