maxwatt MX4000iS, Operator'S Manual

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10
Regardless of whether you use your generator as a back-up power source connected to a building or as
a portable power source, you MUST NOT overload the generator. Overloading may cause serious
damage to the generator and attached electrical devices.
If your generator will be connected to your building’s system, it MUST ALWAYS BE isolated from the
utility power grid with an approved transfer switch installed by a licensed electrician, in compliance
with all applicable building and electrical codes and in accordance with the guidelines supplied by the
power company.
There may be Federal or State Occupational Safety and Health Administration (OSHA) regulations, local
codes or ordinances that apply to the intended use of the generator.
Please consult a qualified electrician, electrical inspection or the local agency having jurisdiction.
In some areas, generators are required to be registered with local utility companies.
If the generator is used at a construction site, there may be additional requirements that must be
observed.
GROUNDING THE GENERATOR
1. Standard generators are protected by electrical separators. This equipment has a thermic
protection device and/or magnet-to-thermic device to protect against a surge of current,
overloading and short-circuiting. In these cases, the generator should under NO circumstances, be
earthed using the terminal “PE” or with any other part of the generator.
2. If a licenced electrician installs the generator with a connection to your building’s electrical circuit
for use as a back-up power system, grounding may alternatively be completed through the
building’s grounding system. Ask your electrician.
3. If the generator is not grounded through your building’s system, follow the procedure below. This
procedure can only be carried out by a licensed electrician.
4. Drive a ¾” or 1” copper pipe or rod into the ground close to the generator. The pipe/rod must
penetrate moist earth – the depth required will be dictated by local soil conditions.
5. Connect an approved ground clamp to the pipe.
6. Run a 10-gauge wire from the clamp to the generator grounding post located on the rear of the
generator head.