
5
2. Before Using this unit
Requirements for Installation
WARNING!
3. Do not use this unit in an area where there is flammable or explosive gas
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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.
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To know about flammable or explosive gas, refer to Page 67 "List of Dangerous
Substances".
Explosive gas
Flammable gas
4. Do not modify
Never disassemble this unit.
This unit has high voltage inside in some portion, which may cause electric shock. Contact
a local dealer or Yamato sales office for adjusting or repairing inside.
In routine maintenance and inspection, follow the procedure described in the instruction
manual. Do avoid modification by customer because it may lead to trouble.
Modification