Riken Keiki GD-3EC, Technical Manual

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4. Installation 4-4 Main unit installation
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4-4-2 Wall mounting
Mount the main unit (SD-3/SD-3SC) to a wall.
1 Place the main unit against the wall surface and secure with four M10 double SEMS bolts.
*The diagram illustrates the SD-3. The mounting method for the SD-3SC is identical.
CAUTION
The product requires periodic maintenance.
Do not install in the following or similar locations where maintenance is dangerous or not possible:

Locations such as within systems that must be stopped for maintenance

Locations where part of the system must be detached to allow maintenance

Locations where the product cannot be removed due to the presence of pipes or racks

Locations where maintenance work is hazardous—for example, close to high-voltage cables
Bolt positions
Bolt positions