FAN INSTALLATION
Fan and Heater
Figure 1: Use a #6 or approved size bare copper ground wire. Install a 5/8" diameter 8' long
Minimum | |
conductors supplying the | of the external protective |
equipment S (mm²) | conductor (mm²) |
|
|
S<=16 | S |
16<=S<35 | 16 |
S=>35 | S÷2 |
|
|
Previously Installed
Units
It is recommended that previ- ously installed units be checked to see that a machine to earth ground has been installed by an electrician.
Dig a hole large enough to hold 1 or 2 gallons of water. Work the ground rod into the earth until it is completely in the ground.
Machine to Earth Ground
It is very important that a machine to earth ground rod be installed at the fan. This is true even if there is a ground at the pole 15 feet away. This ground needs to be as close to the fan as possible, but no more than 8 feet away. The ground rod should be connected to the fan control panel with at least a #6 solid bare copper ground wire, or in accordance with local requirements. The machine to earth ground provides additional safety if there is a short. It also provides the grounding neces- sary for long life and operation of the solid state
Proper Installation of the Ground Rod
(Ground rods and wires are not supplied by GSI ). It is recommended that the rod not be driven into dry ground. The following steps ensure proper ground rod installation:
1.Dig a hole large enough to hold 1 to 2 gal- lons of water.
2.Fill hole with water.
3.Insert rod through water and jab it into the ground.
4.Continue jabbing the rod up and down, the water will work its way down the hole, making it possible to work the rod com- pletely into the ground. This method of installing the rod gives a good conductive bond with the surrounding soil.
5.Connect the bare copper ground wire to the rod with the proper ground rod clamp.
6.Connect the bare ground wire to the fan control boxes with a grounding lug. See Figure 3
7.Ground wire must not have any breaks or splices. Insu- lated wire is not recom- mended for grounding.
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