en
– Original Instructions
37
7 Maintenance
Precautions
DANGER: Electrical hazard
Before attempting to use the unit, check that it is unplugged and that the pump and the control
panel cannot restart, even unintentionally. This also applies to the auxiliary control circuit of
the pump.
Before any interventions on the unit, the network power supply and any other input voltages
must be disconnected for the minimum time indicated in Table 9 (the capacitors of the
intermediate circuit must be discharged by the built-in discharge resistors).
1. Make sure that the cooling fan and the vents are free from dust.
2. Make sure that the ambient temperature is correct according to the limits of the unit.
3. Make sure that qualified personnel perform all modifications of the unit.
4. Make sure that the unit is disconnected from the power supply before any work is carried out.
Always consider the pump and motor Instruction.
WARNING: Danger of exposure to magnetic field
If the rotor is removed or reinserted in the motor body, the existing magnetic field can:
be dangerous for people wearing peacemakers and medical implants
by attracting metal parts, cause personal injuries and damage to the bearings.
Function and parameter control
In case of changes to the hydraulic system:
1. Make sure that all functions and parameters are correct
2. Adjust the functions and parameters if necessary.
3.
Also refer to the “Quick Startup Guide” and the “Installation, Operation and Maintenance
Manual” of e-LNEE, e-LNES, e-LNTE and e-LNTS pumps supplied with the product.
