46
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.
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.
A
min
= (M / (2.5 x (LFL)
(5/4)
x 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
)
12.2.1.1 Outdoor
Installation
Diagram
h
0
= Installation height of the appliance : (2.2m for mini cassette & ducted is standard reference installed height)
(2.5m for mini cassette & ducted is minimum installed height given by
manufacturer)
(0.6m for floor console)
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.
Model A B C D
Z25****
570 mm
105 mm
18.5 mm
320 mm
Z35****
540 mm
160 mm
18.5 mm
330 mm
Z50****
613 mm
131 mm
24 mm
360.5 mm
Z60****
Model
Horse
Power
(HP)
Piping size
Std.
Length
a
(m)
Max.
Elevation
b
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
Additional
Refrigerant
(g/m)
Piping
Length for
add. gas
(m)
Indoor
A
min
(m²)
Indoor
A
min
(m²)
Indoor
A
min
(m²)
Gas
Liquid
2.2m
for mini
cassette
2.5m
for mini
cassette
2.2m for
ducted
2.5m for
ducted
0.6m for
floor console
Z25**** 1.0HP
9.52mm
(3/8")
6.35mm
(1/4")
5
15
3
20
10
7.5
0.64
0.50
0.64
0.50
8.67
Z35**** 1.5HP
15
3
20
10
7.5
0.71
0.55
0.71
0.55
9.55
Z50**** 2.0HP
12.7mm
(1/2")
20
3
30
15
7.5
1.37
1.06
1.37
1.06
18.48
Z60**** 2.25HP
20
3
30
15
7.5
1.37
1.06
1.37
1.06
N/A
•
This illustration is for
explanation purposes only.
It is advisable to
avoid more than 2
blockage directions.
For better ventilation
& multiple-outdoor
installation, please
consult authorized
dealer/specialist.
Installation parts you
should purchase ( )
Additional
drain hose ( )
1/4" Liquid
side piping ( )
Gas side
piping ( )
Connection
cable ( )
Power supply
cable ( )
10
0 m
m
or
m
or
e
100 mm
or more
100
0 m
m
or m
ore
300 m
m
or m
ore
A
B
C
D
