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12. Installation Instruction
12.1 Select the Best Location
12.1.1 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.
Recommended installation height for indoor unit
shall be at least 2.5 m.
12.1.2 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
Horse
Power
(HP)
Piping size
Std.
Length
(m)
Max
Eleva-
tion (m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
Addi-
tional
Refri-
gerant
(g/m)
Piping
Length
for
add.
gas
(m)
Indoor
A
min
(m
2
)
Gas Liquid
Z20*** 3/4HP
9.52
mm
(3/8
")
6.35
mm
(1/4
")
5
15 3 20 10 7.5 0.75
Z25*** 1.0HP 15 3 20 10 7.5 0.91
Z35*** 1.5HP 15 3 20 10 7.5 0.91
Z42*** 1.75HP
12.7
mm
(1/2
")
15 3 30 15 7.5 1.97
Z50*** 2.0HP 15 3 30 15 10 2.06
Z60*** 2.25HP 15 3 30 15 10 2.35
Z71*** 2.5HP
15.88
mm
(5/8
")
20 3 30 25 10 2.99
Z80*** 3.0HP 20 3 30 25 10 3.78
Example: For Z20***
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
c
/ (2.5 × (LFL)
(5/4)
× h
0
))
2
A
min
= Required minimum room area, in m
2
m
= Refrigerant 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)
12.1.3 Indoor/Outdoor Unit Installation
Diagram
Vinyl tape
Remote control holder fi xing screws
6
Remote control holder
5
Remote
control
3
This illustration is for
explanation purposes only.
The indoor unit will actually face a different way.
100 mm
or more
1000 mm
or more
100 mm
or more
300 mm
or more
It is advisable to
avoid more than 2
blockage directions.
For better ventilation
& multiple-outdoor
installation, please
consult authorized
dealer/specialist.
Saddle
Power supply cord
Additional drain hose
Control Board cover
Gas side piping
Connection cable
Vinyl tape (wide)
Apply after carrying
out a drainage test.
To carry out the
drainage test,
remove the air fi lters
and pour water into
the heat exchanger.
Liquid side piping
Piping direction
Attention not to bend
up drain hose
Right
Right
Rear
Right
bottom
Left
Rear
Left bottom
Left
(Front side)
Carry out insulation after
checking for gas leaks and
secure with vinyl tape.
Attaching the remote control holder to the wall
Insulation of piping connections
( )
( )
( )
( )
( )
( )
WARNING
Flare connection
only at outside
of building
(Left and right are identical)
Installation plate
1
Sleeve
Bushing-Sleeve
Bend the pipe as
closely on the wall as
possible, but be careful
that it doesn’t break.
Putty
(Gum Type Sealer)
Installation parts you
should purchase
( )
( )
( )
( )
Flare connection
only at outside
of building
300 mm
or more
50 mm
or more
65 mm
or more
Floor
2.5 m (min)
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