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12.2 Outdoor Unit
12.2.1
Select the Best Location
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.
Piping size
Std.
Max.
Min.
Horse
Length
Elevation
Piping
Piping
Model
Power
a
b
Length
Length
(HP)
Gas
Liquid
(m)
(m)
(m)
Z25**** 1.0HP 9.52mm
15
3
(3/8")
Z35**** 1.5HP
15
3
6.35mm
5
(1/4")
Z50**** 2.0HP 12.7mm
20
3
(1/2")
Z60**** 2.25HP
20
3
Example: For Z25****
If the unit is installed at 10 m distance, the quantity of
additional refrigerant should be 25 g .... (10-7.5) m x
10 g/m = 25 g.
(5/4)
A
= (M / (2.5 x (LFL)
min
A
= Required minimum room area, in m
min
M
= Refrigerant charge amount in appliance, in kg
LFL = Lower flammable limit (0.306 kg/m
h
= Installation height of the appliance : (2.2m for mini cassette & ducted is standard reference installed height)
0
12.2.2
Install the Outdoor Unit
After selecting the best location, start installation
according to Indoor/Outdoor Unit Installation
Diagram.
1
Fix the unit on concrete or rigid frame firmly
and horizontally by bolt nut (ø10 mm).
2
When installing at roof, please consider strong
wind and earthquake.
Please fasten the installation stand firmly with
bolt or nails.
Indoor
Indoor
Max.
Piping
A
(m²)
A
(m²)
Additional
min
min
Length for
Refrigerant
2.2m
2.5m
add. gas
(g/m)
2.2m for
2.5m for
for mini
for mini
(m)
(m)
ducted
ducted
cassette
cassette
20
10
7.5
0.64
0.50
0.64
20
10
7.5
0.71
0.55
0.71
30
15
7.5
1.37
1.06
1.37
30
15
7.5
1.37
1.06
1.37
2
x h
))
0
2
3
)
(2.5m for mini cassette & ducted is minimum installed height given by
manufacturer)
(0.6m for floor console)
12.2.1.1
It is advisable to
avoid more than 2
blockage directions.
For better ventilation
& multiple-outdoor
installation, please
consult authorized
dealer/specialist.
Indoor
•
A
(m²)
This illustration is for
min
explanation purposes only.
0.6m for
floor console
0.50
8.67
0.55
9.55
1.06
18.48
1.06
N/A
Model
Z25****
Z35****
Z50****
Z60****
46
Outdoor Installation Diagram
A
B
A
B
570 mm
105 mm
18.5 mm
540 mm
160 mm
18.5 mm
613 mm
131 mm
24 mm
Power supply
cable ( )
Connection
cable ( )
1/4" Liquid
side piping ( )
Gas side
piping ( )
Additional
drain hose ( )
Installation parts you
should purchase ( )
C
D
320 mm
330 mm
360.5 mm
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