4
Before Using this unit
Requirements for Installation
WARNING!
1. Always ground this unit
•
The DP23C/33C type use a single-phase 115V, DP43C/63C types use a single-phase 220V
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 back surface of unit for DP23C/33C/43C/63C types.
Main Unit
More than
15cm
More than
15cm
More than 30cm
Front side
