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8. Foundation work
Install the unit in accordance with the instructions to minimize the risk of damage from
earthquakes and strong winds.
- Improper installation will cause the unit to topple, resulting in serious injury.
To reduce the vibration of the unit operation, irrespective of the cause of the
vibration such as earthquakes and strong winds, perform the foundation work
in accordance with the installation instructions (including the instructions for
installing anti-vibration rubber pads) provided in this section.
The unit must be securely installed on a structure that can sustain its weight.
- Failure to do so will cause the unit to fall, resulting in serious injury. Abnormal vibrations that
result from improper installation can generate abnormal sound and damage the pipes, resulting
in refrigerant gas leakage.
Take adequate measures against natural disasters including earthquakes and
windstorms so that the unit will not fall or tip over. Consult your local specialist
for safety measures to be taken.
・When performing the foundation work, make sure that the floor surface has sufficient strength and carefully route
pipes and wires in consideration of the water drainage that will be required when the unit is operated.
・If considering routing the pipes and wires across the bottom of the unit, make sure that the base is at least 100 mm
(3-15/16 in) high so that the through-holes will not be blocked.
・Provide a strong base of concrete or angle iron. If a stainless steel base is used, insulate the area between the
base and the outdoor unit by putting a rubber cushion or by applying an electrically insulated coating to prevent the
base from rusting.
・Install the unit on a level surface.
・With some types of installation, unit vibration and sound will be transmitted to the floors and walls. Excessive
vibrations can damage the pipes, resulting in refrigerant gas leakage. Take measures to prevent vibration (such as
using anti-vibration rubber pads).
・Securely bolt down the unit as illustrated below so that it will not fall over when subject to wind gusts or earthquakes.
(1) Without a detachable leg
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(2) With a detachable leg
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WT09973X01
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17
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[mm (in)]
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