en
3
2. Installation location
Fig. 2-1
Fig. 2-2
OK
OK
OK
NG
1350
1020
210
600
370
330+30
(mm)
2.1. Choosing the outdoor unit installation location
/
R32 is heavier than air—as well as other refrigerants—so tends to accumulate at
the base (in the vicinity of the floor). If R32 accumulates around base, it may reach
a flammable concentration in case room is small. To avoid ignition, maintaining a
safe work environment is required by ensuring appropriate ventilation. If a refrig-
erant leak is confirmed in a room or an area where there is insufficient ventilation,
refrain from using of flames until the work environment can be improved by ensur
-
ing appropriate ventilation.
•
Avoid locations exposed to direct sunlight or other sources of heat.
•
Select a location from which noise emitted by the unit will not inconvenience
neighbors.
•
Select a location permitting easy wiring and pipe access to the power source and
indoor unit.
• Avoid locations where combustible gases may leak, be produced, flow, or accu
-
mulate.
•
Note that water may drain from the unit during operation.
•
Select a level location that can bear the weight and vibration of the unit.
•
Avoid locations where the unit can be covered by snow. In areas where heavy
snow fall is anticipated, special precautions such as raising the installation loca-
tion or installing a hood on the air intake must be taken to prevent the snow from
blocking the air intake or blowing directly against it. This can reduce the airflow
and a malfunction may result.
•
Avoid locations exposed to oil, steam, or sulfuric gas.
•
Use the transportation handles of the outdoor unit to transport the unit. If the unit
is carried from the bottom, hands or fingers may be pinched.
/
Install outdoor units in a place where at least one of the four sides is open, and in
a sufficiently large space without depressions. (Fig. 2-1)
Caution:
• Perform grounding.
Do not connect the ground wire to a gas pipe, water pipe arrester or tel
-
ephone ground wire. Defective grounding could cause an electric shock.
• Do not install the unit in a place where an inflammable gas leaks.
If gas leaks and accumulates in the area surrounding the unit, it could cause
an explosion.
• Install a ground leakage breaker depending on the installation place (where
it is humid).
If a ground leakage breaker is not installed, it could cause an electric shock.
• Perform the drainage/piping work securely according to the installation
manual.
If there is a defect in the drainage/piping work, water could drop from the
unit and household goods could be wet and damaged.
2.2. Outline dimensions (Outdoor unit) (Fig. 2-2)
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