4
Before Using this unit
Requirements for Installation
WARNING!
1. Always ground this unit
•
The DKN302, DKN402and DKN602 types use a 100V power source.
•
The DKN612, DKN812 and DKN912types use a single-phase 200V power source. Please
consult your local electrical contractor for power connecting work.
•
Be sure to connect the earth wire (the green cable of power cord) to the grounding conductor
or ground terminal to prevent accidents caused by electric leakage.
•
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.
•
Do not use a branching receptacle, which may cause the heat generation.
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 exceeds 35
°
C.
♦
Ambient temperature fluctuates violently.
♦
There is direct sunlight.
♦
There is excessive humidity and dust.
♦
There is a constant vibration.
•
Install this unit on a stable place with the space as shown below.
The exhausted opening is provided at the top surface of unit for DKN302, DKN402, DKN602
and DKN612 types, and at the back surface for DKN812 and DKN912 types.
Main Unit
More than
15cm
More than
15cm
More than 30cm
Front side
