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11. Installation Instruction
11.1 Select The Best Location
11.1.1 Indoor Unit
Do not install the unit in excessive oil fume area
such as kitchen, workshop and etc.
There should not be any heat source or steam
near the unit.
There should not be any obstacles blocking the air
circulation.
A place where air circulation in the room is good.
A place where drainage can be easily done.
A place where noise prevention is taken into
consideration.
Do not install the unit near the door way.
Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
Must installation height for indoor unit shall be at
least 2.5 m.
11.1.2 Outdoor Unit
If an awning is built over the unit to prevent direct
sunlight or rain, be careful that heat radiation from
the condenser is not obstructed.
There should not be any animal or plant which
could be affected by hot air discharged.
Keep the spaces indicated by arrows from wall,
ceiling, fence or other obstacles.
Do not place any obstacles which may cause a
short circuit of the discharged air.
If piping length is over the [piping length for
additional gas], additional refrigerant should be
added as shown in the table.
Table A
Model
VU9***
VU12***
VU18***
Capacity
W
(HP)
1.0HP
1.5HP
2.0HP
15 3
15
20
Gas
Piping Size
9.52mm
(3/8”)
12.7mm
(1/2”)
6.35mm
(1/4”)
15.88mm
(5/8”)
Liquid
Std.
Length
(m)
Max.
Elevation
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
5
3
3
20
20
30
10
Additional
Refrigerant
(m)
10
25
7.5
Piping
Length
for add.
gas
(m)
7.5
10
1.14
Indoor
A
min
(m
2
)
1.14
2.15
Example: For VU9***
If the unit is installed at 10 m distance, the quantity of
additional refrigerant should be 25 g …. (10-7.5) m ×
10 g/m =25 g.
A
min
= (M / (2.5 × (LFL)
(5/4)
× h
0
))
2
A
min
= Required minimum room area, in m
2
M = Required charge amount in appliance, in kg
LFL = Lower flammable limit (0.306 kg/m
3
)
h
0
= Installation height of the appliance (1.8 m for wall
mounted)
11.1.3 Indoor/Outdoor Unit Installation
Diagram
Piping direction
up drain hose
Attention not to bend
(Front side)
Right
Right
Rear
Left
Rear
Left
Indoor/Outdoor Unit Installation Diagram
50 mm
or more
80
mm
or more
160 m
m or more
2.5 m (mi
n)
(Left and right are identical)
• Carry out insulation after
checking for gas leaks and
secure with vinyl tape.
Vinyl tape
Remote control holder fixing screws
Remote control holder
Floor
Remote
control
1
00 mm
or more
1000 mm
or more
100 mm
or more
300 mm
or mo
r
e
It is advisable to
avoid more than 2
blockage directions.
For better ventilation
& multiple-outdoor
installation, please
consult authorized
dealer/specialist.
Installation plate 1
6
5
3
Sleeve (
)
Bushing-Sleeve (
)
Bend the pipe as
closely on the wall as
possible, but be careful
that it doesn’t break.
Saddle (
)
Additional drain hose (
)
Gas side piping (
)
Connection cable
Putty (
)
(Gum Type Sealer)
Installation parts you
should purchase (
)
Liquid side piping (
)
Attaching the remote control holder to the wall
Insulation of piping connections
This illustration is for explanation purposes only.
The indoor unit will actually face a different way.
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