Xylem LOWARA SMB /HME Series, Installation, Operation And Maintenance Manual

Page: 24 / 31

en
– Original instructions
24
6 Maintenance
DANGER: Electrical hazard

Before attempting to use the unit, check that it is unplugged and that the pump unit and the
control panel cannot restart, even unintentionally. This also applies to the auxiliary control
circuit of the pump unit.

Before any interventions on the booster set, the network power supply and any other input
voltages must be disconnected for the minimum time indicated in the para. Wait Times (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 booster set.
3. Make sure that qualified personnel perform all modifications of the booster set.
4. Make sure that the booster set is disconnected from the power supply before any work is
carried out.
5. Always observe the pump unit and motor instructions.
6.1 Maintenance of the control panel and frequency converters
The control panel and frequency converters do not require maintenance.
6.2 Maintenance of the diaphragm pressure tank

Refer to the Installation, Operation and Maintenance Manual of the diaphragm pressure tank

Check the pre-charge at least once a year.
Function and parameter control
In case of changes to the hydraulic booster set:
1. Make sure that all functions and parameters are correct.
2. Adjust the functions and parameters if necessary.