4
2. Before operating the unit
Precautions when installing the unit
1. Carefully select an installation site.
Take special care not to install the unit at a place described below:
・
On uneven or dirty floor
・
Where combustible gas or corrosive gas exists
・
Where the ambient temperature is 35
°
C or more
・
Where temperature fluctuates widely
・
Where dust or humidity is excessive
・
Where subject to direct sunlight
・
Where vibration is severe
Install this unit at a place with spaces shown below.
15cm
or
more
15cm
or
more
Front
15cm
or more
1m or
more
2. Never operate the unit in an atmosphere containing explosive or flammable 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 turning a switch “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
Combustible gas