EN-2
CAUTION
(Could lead to serious injury in particular environments when operated incorrectly.)
n
Install an earth leakage breaker depending on the
installation place.
If an earth leakage breaker is not installed, it could cause
electric shock.
n
Perform the drainage/piping work securely accord-
ing to the installation manual.
If there is defect in the drainage/piping work, water could
drop from the unit, soaking and damaging household
goods.
n
Do not touch the air inlet or the aluminum fins of
the outdoor unit.
This could cause injury.
n
Do not install the outdoor unit where small animals
may live.
If small animals enter and touch the electric parts inside
the unit, it could cause a malfunction, smoke emission,
or fire. Also, advise user to keep the area around the
unit clean.
n
Do not operate the air conditioner during interior
construction and finishing work, or while waxing
the floor.
Before operating the air conditioner, ventilate the room
well after such work is performed. Otherwise, it may
cause volatile elements to adhere inside the air condi
-
tioner, resulting in water leakage or scattering of dew.
n
Do not install the unit in a place where smoke, gas,
or chemicals may fill.
The refrigerant sensor mounted in the indoor unit may
react to it, and display an error of refrigerant leakage.
n
Be careful of the fan rotation when the breaker is
ON.
When the refrigerant sensor detects the refrigerant
leakage, the fan starts rotating automatically. This may
cause injury.
n
When using any aerosol sprays for interior con-
struction, finishing work, or sealing a wall hole,
turn off the breaker and ventilate the room well.
The refrigerant sensor may react to the gas in the
sprays, and it may cause misdetection.
1-2. SELECTING THE INSTALLATION LOCATION
INDOOR UNIT
• Where airflow is not blocked.
• Where cool (or warm) air spreads over the entire room.
• Rigid wall without vibration.
• Where it is not exposed to direct sunshine. Do not expose to direct sunshine
also during the period following unpacking to before use.
• Where easily drained.
• At a distance 1 m or more away from your TV and radio. Operation of the air
conditioner may interfere with radio or TV reception. An amplifier may be required
for the affected device.
• In a place as far away as possible from fluorescent and incandescent lights. In
order to make the infrared remote control operate the air conditioner normally.
The heat from the lights may cause deformation or the ultraviolet may cause
deterioration.
• Where the air filter can be removed and replaced easily.
• Where it is away from the other heat or steam source.
• Do not install the unit in the environment where any gas equipment for propane,
butane or methane, sprays such as bug killer, equipment which generates smoke,
paint etc., and chemicals are used, or in the place where sulfur-based gas is
generated.
• The refrigerant sensor mounted in the indoor unit may react to them, and display
an error of refrigerant leakage. This may cause the unit not to operate.
REMOTE CONTROLLER
• Where it is easy to operate and easily visible.
• Where children cannot touch it.
• Select a position about 1.2 m above the floor and check that signals from the
remote controller are surely received by the indoor unit from that position (‘beep’
or ‘beep beep’ receiving tone sounds). After that, attach remote controller holder
to a pillar or wall and install wireless remote controller.
Note:
In rooms where inverter type fluorescent lamps are used, the signal from the
wireless remote controller may not be received.
OUTDOOR UNIT
• Where it is not exposed to strong wind.
• Where airflow is good and dustless.
• Where rain or direct sunlight can be avoided as much as possible.
• Where neighbours are not annoyed by operation sound or hot air.
• Where rigid wall or support is available to prevent the increase of operation sound
or vibration.
• Where there is no risk of combustible gas leakage.
• When installing the unit at a high level, be sure to secure the unit legs.
• Where it is at least 3 m away from the antenna of TV set or radio. Operation of the
air conditioner may interfere with radio or TV reception in areas where reception
is weak. An amplifier may be required for the affected device.
• Install the unit horizontally.
• Please install it in an area not affected by snowfall or blowing snow. In areas with
heavy snow, please install a canopy, a pedestal and/or some baffle boards.
Note:
It is advisable to make a piping loop near outdoor unit so as to reduce vibration
transmitted from there.
WARNING
This unit should be installed in rooms which exceed the floor space
specified in this installation manual.
• Refer to outdoor unit installation manual.
Note:
When operating the air conditioner in low outside temperature, be sure to follow the
instructions described below.
• Never install the outdoor unit in a place where its air inlet/outlet side may be
exposed directly to wind.
• To prevent exposure to wind, install the outdoor unit with its air inlet side facing
the wall.
• To prevent exposure to wind, it is recommended to install a baffle board on the
air outlet side of the outdoor unit.
Avoid the following places for installation where air conditioner trouble is liable
to occur.
• Where flammable gas could leak.
• Where there is much machine oil.
• Where oil is splashed or where the area is filled with oily smoke (such as cook
-
ing areas and factories, in which the properties of plastic could be changed
and damaged).
• Salty places such as the seaside.
• Where sulfide gas is generated such as hot spring, sewage, waste water.
• Where there is high-frequency or wireless equipment.
• Where there is emission of high levels of VOCs, including phthalate compounds,
formaldehyde, etc., which may cause chemical cracking.
• The appliance shall be stored so as to prevent mechanical damage from oc
-
curring.
M [kg]
Amin [m
2
]
1.00
No requirements
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.84
3.63
1.90
3.75
2.00
3.95
2.10
4.15
2.20
4.34
2.30
4.54
2.40
4.74
If connect to the outdoor unit that uses R32 refrigerant, install in a room with a floor area of Amin or more, corresponding to refrigerant M (factory-charged refrigerant
+ locally add refrigerant). For refrigerant quantity and additional refrigerant charge, refer to the outdoor unit.
RH79A056H01_4th.indd 2
2020/08/19 12:50:18
