15.3 ELECTRICAL CONNECTIONS
The electric connections must be made according to the EC standards. All local safety regulations must also
be observed.
Make sure that the operating voltage is correct. The voltage must be as rated, ± 5 %. Check that each phase
has an equal voltage.
The customer must provide supply cable short circuit protection. The fuse type refers to the electric diagrams
and technical data.
If the compressor is equipped with an integrated dryer, a separate 230V supply must be connected to the
el.box (Cf. electric diagrams and technical data).
Connecting the protective earth lead correctly is highly important.
Power supply connections are only allowed to qualified electricians. No computers should be
installed near the compressor. Make sure that any computers is connected to an electrical
circuit separate from that of the compressor.
15.4 RECOMMENDATIONS.
The air drawn into the compressor must be completely free from toxic fumes and inflammable
a
vapours from solvents, paints etc, which would cause fire or explosions and pollute the working area.
The usage of the compressor without a proper air reservoir will jeopardise its functionality.
b
Overloading the electrical control system, may cause too many starts per hour, lead to motor
damage and shorten the life of the unit.
Never dismantle or modify guards and isolating materials fitted to the compressor.
c
Never tamper with the pressure transducer or set working pressure higher than that the one set for
d
the compressor model and for the reservoir. Maximum available pressure must always be below the
blow-off pressure level for the safety valve fitted to reservoirs, built to current safety standards.
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