5
2. Before operating the unit
Precautions when installing the unit
4. Secure sufficient ventilation for the unit.
Do not operate the unit when its side panels and vent holes are blocked.
Internal temperature of the unit will rise degrading the performance and an accident, a
malfunction or a fire may result.
5. Do not operate the unit at such a place that may subject to splash.
Do not operate the unit at such a place that may subject to splash. Liquid entering the
inside may cause an accident, a malfunction, an electrical shock or a fire.
6. Never operate the unit in an atmosphere containing flammable or explosive
gas.
Never operate the unit in an atmosphere containing flammable or explosive gas. Since the
unit is not explosion-
proof, an arc is discharged when switching the ELB “ON” and “OFF”
and during operation and a fire or an explosion may result.
See the section “13. List of dangerous materials” on page 37 for flammable and explosive
gases.
Explosive
gas
Flammable
gas
Summary of Contents for DG400
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