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All work on the device must be carried out after disconnecting the device from the mains (main
switch). Due to possible residual voltage at the frequency inverter (inverter module), wait at least
5 minutes after actuating the main switch (disconnect the unit) before starting work.
Disconnect the unit from the electrical power supply prior to undertaking any cleaning work. Before
starting work and when working, make sure that there is no live voltage.
Cleaning fluids must not dissolve the materials used, particularly the plastics.
Do not use hard objects for mechanical cleaning.
The unit or parts thereof must not be cleaned with water jets, high-pressure cleaners or com-
pressed air. The components must not be immersed in water or cleaning fluid. Only clean with
damp cloths.
