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• Table 1 (defined according to EN378-1:2017)
Charge
amount (kg)
Installation
height (m)
0.6
12.77
13.30
1
4.60
4.79
1.8
1.42
1.48
2
1.15
1.20
2.2
0.95
0.99
• IMPORTANT: it's mandatory to consider either
the table 1 or taking into consideration the local
law regarding the minimum living space of the
premises.
• Minimum installation height of indoor unit is 0.6 m
for floor mounted, 1.8 m for wall, 2.2 m for ceiling.
Installation of the outdoor unit
• While in installation or relocation of the product, do
not mix the refrigerant with other gases including
air or unspecified refrigerant. Failure to do so may
cause pressure increase to result in rupture or injury.
• Do not cut or burn the refrigerant container or
pipings.
• Use clean parts such as manifold gauge, vacuum
pump, and charging hose for the refrigerant.
• Installation must be carried out by qualified
personnel for handling the refrigerant. Additionally,
reference the regulations and laws.
• Be careful not to let foreign substances (lubricating
oil, refrigerant, water, etc.) enter the pipings. The
application of oil or refrigerant deteriorates the
pipings to result in drain leakage. For storage,
securely seal their openings.
• When mechanical ventilation is required, ventilation
openings shall be kept clear of obstruction.
• For disposal of the product, follow the local laws and
regulations.
• Do not work in a confined place.
• The work area shall be blocked.
• The refrigerant pipings shall be installed in the
position where there are no substances that may
result in corrosion.
[Unit : m
]
2
19.15
26.06
34.04
43.09
53.19
6.89
9.38
12.26
15.51
19.15
2.13
2.90
3.78
4.79
5.91
1.72
2.35
3.06
3.88
4.79
1.42
1.94
2.53
3.20
3.96
• The following checks shall be performed for
installation:
– The charging amount depends on the room
size.
– The ventilation devices and outlets are
operating normally and are not obstructed.
– Markings and signs on the equipment shall be
visible and legible.
• Upon leakage of the refrigerant, ventilate the room.
When the leaked refrigerant is exposed to flame, it
may cause generation of toxic gases.
• Make sure that the work area is safe from
flammable substances.
• To purge air in the refrigerant, be sure to use a
vacuum pump.
• Note that the refrigerant has no odour.
• The units are not explosion proof so they must be
installed with no risk of explosion.
• This product contains fluorinated gases that
contribute to global greenhouse effect. Accordingly,
do not vent gases into the atmosphere.
• Because the working pressure for R-32 is 1.6 times
higher than that for R-22, use exclusive pipings
and tools specified. In case of replacing an R-22
model with an R-32 model, be sure to replace the
conventional pipings and flare nuts with exclusive
ones.
• The models that use the refrigerant R-32 have a
different thread diameter for the charging port
to prevent charging failure. Therefore, check its
diameter (1/2 inch) in advance.
• Servicing shall be performed as recommended by
the manufacturer. In case other skilled persons are
joined for servicing, it shall be carried out under
supervision of the person who is competent in
handling flammable refrigerants.
• For servicing the units containing flammable
refrigerants, safety checks are required to minimise
the risk of ignition.
• Servicing shall be performed following the
controlled procedure to minimize the risk of
flammable refrigerant or gases.
• Do not install where there is a risk of combustible
gas leakage.
• Do not place heat sources.
• Be cautious not to generate a spark as follows:
– Do not remove the fuses with power on.
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