4
2. Before operating the unit
Precautions when installing the unit
Warning
1. Be sure to connect the ground wire.
・
The DS402C/602C types use a single-phase 115V, DVS412C/612C types use a
single-phase 220V power source. Please consult your local electrical contractor for
power connecting work.
・
Be sure to connect the ground wire (green core wire of the power cord) to the ground
wire or the ground terminal in order to prevent an electrical shock from electric leakage.
・
Never connect the ground wire to gas or water pipes. Otherwise, a fire may result.
・
Never connect the ground wire to the ground for telephone wire or lightning conductor.
Otherwise, a fire or an electrical shock may result.
・
Do not use a branching receptacle, which may generate heat and possible danger.
We recommend use of a ground type outlet
tap.
When there is no ground terminal.
●
In this case, class 3 grounding work is
necessary and please consult your dealer
or our nearest sales office.
When a bipolar type outlet tap is used
●
Insert the ground adaptor included as an
option, into a power plug confirming the
polarity of the outlet. Connect the
grounding wire (green) of the ground
adaptor to the ground terminal on the
power supply equipment.
2. 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
℃
or more
・
Where temperature widely fluctuates
・
Where there is excessive dust or humidity
・
Where subject to direct sunlight
・
Where vibration is severe
Install this unit at a place with spaces shown below.
Do not cover the exhaust ports on the top of the unit.
15 cm
or more
15 cm
or more
Front
15 cm or more
1m or
more
Grounded
tap
Power plug
Bipolar outlet
tap
Ground wire
