Acclimatization; Electrical Connections - Edwards EOSi Series Instruction Manual

Oil-sealed rotary screw vacuum pumps
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6.6 Acclimatization

CAUTION: MOISTURE FORMATION
Risk of damage to equipment. To prevent moisture that can damage the electrical
components, make sure that a minimum of 2 hours of acclimatization is done before
you start the pump.
When you move the pump to the installation room, condensation can occur on some
components. Make sure that the pump is left idle for minimum 2 hours to adjust in the
installation room condition.

6.7 Electrical connections

CAUTION: NETWORK CONNECTIONS
Risk of injury. Take special safety precautions when you use the machines controlled
by a frequency converter. The safety precautions depend on the type of network used
(TN, TT, IT system). Contact us for information.
Most pumps are designed for use in TT/TN networks and are intended for an industrial
environment where the electrical supply is separated from the residential/commercial
supply network.
To use the pump in light industrial, commercial or residential environments with a
shared supply network, or in an IT network, extra precautions are necessary. Contact us
for information.
Note:
You can find the correct position for the electrical connection on the dimension drawings.
A correct cable gland must be used when the supply cable is connected to the pump. This
will give the necessary protection to the electrical cubicle and its components from dust.
1.
Install an isolating switch.
2.
Check that the motor cables and wires in the electric cabinet are connected to
their terminals.
3.
Check the fuses. Refer to
4.
Connect the power supply cables to the terminals (1, 3 and 5).
5.
Connect the earth conductor to the earth bolt.
6996022910_B
6996022910_B - Installation
Electrical cable size
Page 79
on page 65.
09/2021 - ©Edwards Limited

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