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Requirements for Installation
WARNING!
1. Always ground this unit
• Be sure to connect the ground wire to the earth conductor or earth terminal to prevent
accidents caused by an electric shock.
• Do not connect the earth wire to gas or water pipes. If not, fire disaster may be caused.
• Do not connect the earth wire to the ground for telephone wire or lightning conductor. If not,
fire disaster or electric shock may be caused.
• Please consult your local electrical contractor for power connecting work.
2. Choose a proper place for installation
• Do not install this unit in a place where:
♦ Rough or dirty surface.
♦ Flammable gas or corrosive gas is generated.
♦ Ambient temperature above 35°C.
♦ Ambient temperature fluctuates violently.
♦ There is direct sunlight.
♦ There is excessive humidity and dust.
♦ There is a constant vibration.
♦ Without a ventilation system.
• Make sure that no flammable substances are placed around the devices. Keep space as
shown, at least, in the figure below. We recommend the installation inside the ventilation
system such as a draft chamber.
3. Do not use this unit in an area where there is flammable or explosive gas
• Never use this unit in an area where
there is flammable or explosive gas. This
unit is not explosion-proof. An arc may
be generated when the power switch is
turned ON or OFF, and fire/explosion
may result.
• To know about flammable or explosive
gas, refer to page 31 "List of Dangerous
Substances".
More than 10cm
More than
Main Unit
10cm
More than 10cm
Before Using This Unit
More than
×
5
10cm
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