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2. Selecting the installation location
2.1. Indoor unit
• Where airflow is not blocked.
• Where cool air spreads over the entire room.
• Where it is not exposed to direct sunshine.
• At a site that allows for proper drainage of drain water.
• At a distance 1 m or more away from your TV and radio (to prevent picture from
being distorted or noise from being generated).
• In a place as far away as possible from fluorescent and incandescent lights (so
the infrared remote control can operate the air conditioner normally).
• Where the air filter can be removed and replaced easily.
3. Selecting an installation site & Accessories
• Select a site with sturdy fixed surface sufficiently durable against the weight of unit.
• Before installing unit, the routing to carry in unit to the installation site should be
determined.
• Select a site where the unit is not affected by entering air.
• Select a site where the flow of supply and return air is not blocked.
• Select a site where refrigerant piping can easily be led to the outside.
• Select a site which allows the supply air to be distributed fully in room.
• Do not install unit at a site with oil splashing or steam in much quantity.
• Do not install unit at a site where combustible gas may generate, flow in,
stagnate or leak.
• Do not install unit at a site where equipment generating high frequency waves (a
high frequency wave welder for example) is provided.
• Do not install unit at a site where fire detector is located at the supply air side. (Fire
detector may operate erroneously due to the heated air supplied during heating
operation.)
• When special chemical product may scatter around such as site chemical plants
and hospitals, full investigation is required before installing unit. (The plastic
components may be damaged depending on the chemical product applied.)
• Keep the unit away from heat or steam source.
• Do not install the unit in a place where the following types of appliances or
chemicals are used nearby or where sulfur gas is present: propane, butane, or
methane appliances; spray cans, such as insect repellant; or equipment that
generates smoke or paint.
• The refrigerant sensor on the indoor unit may react to these chemicals, resulting
in an error, and the unit may become inoperable.
• If the unit is operated for long hours in a high-temperature high-humidity
environment (dew point above 26°C), condensation may form on the indoor unit.
When operating the indoor unit under such condition, insulate the entire surface
of the indoor unit with insulation materials (10-20 mm thick).
Warning:
The unit must be securely installed on a structure that can sustain its weight.
If the unit is mounted on an unstable structure, it may fall down causing
injuries.
Warning:
1. Install the unit in a space with at least a minimum floor area defined in
the installation manual for the outdoor unit.
• Refer to the installation manual for the outdoor unit.
2. This unit has a function to detect refrigerant leaks and force the fan
to go into operation to reduce the refrigerant concentration. For this
function to work effectively, observe the following.
• Do not obstruct the inlets or outlets.
• Install the unit where the supply air can be evenly distributed
throughout the space.
14
2.2. Outdoor unit
• Where it is not exposed to strong wind.
• Where airflow is good and dustless.
• Where it is not exposed to rain and direct sunshine.
• 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 fix the unit legs.
• Where it is at least 3 m away from the antenna of TV set or radio. (Otherwise,
images would be disturbed or noise would be generated.)
• Install the unit horizontally.
Caution:
Avoid the following places for installation where air conditioner trouble is
liable to occur.
• Where there is too much machine oil.
• Salty environment as seaside areas.
• Hot-spring areas.
• Where sulfide gas exists.
• Other special atmospheric areas.
Indoor units connected to an outdoor unit for use with R32 must be installed
in a space with at least the floor area Amin required for refrigerant M (factory
charge+locally added amount). Refer to the installation manual for the outdoor unit
for the pre-charged and post-charged refrigerant amount.
The floor areas shown in the table do not include the space occupied by furniture
and other objects in the room. Make sure there is sufficient free space in the room.
M [kg]
h ≥ 1.8
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.84
4.5
1.90
4.6
2.00
4.9
2.10
5.1
2.20
5.4
2.30
5.6
2.40
5.8
M [kg]
ø = 90º
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.84
4.1
1.90
4.3
2.00
4.5
2.10
4.7
2.20
4.9
2.30
5.2
2.40
5.4
Refer to the installation manual for the outdoor unit for information regarding
refrigerant charge.
Note:
• The air outlet height must be 1.0 m or higher.
• The air outlet angle must be 30º or greater.
[Fig. 3-0-1] (P.2)
Ⓐ Air inlet
Ⓑ Air outlet
Ⓒ Air outlet grill (field supply)
Amin [m
2
]
1.4 ≤ h < 1.8
1.0 ≤ h < 1.4
No requirements
5.8
8.0
5.9
8.3
6.3
8.7
6.6
9.2
6.9
9.6
7.2
10.0
7.5
10.5
2
Amin [m
]
60º ≤ ø < 90º
30º ≤ ø < 60º
No requirements
5.0
8.3
5.1
8.6
5.4
9.0
5.7
9.5
5.9
9.9
6.2
10.4
6.5
10.8
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