en – Original instructions
SCUBA – Additional Installation, Operation and Maintenance Instructions
23
6 Maintenance
6.1
Precautions
Before starting, make sure that the instructions shown in
on page 4
have been fully read and understood.
WARNING:
Maintenance must be done by a technician possessing the technical-professional requirements
outlined in the current regulations.
WARNING:
Always wear personal protective equipment.
WARNING:
Always use suitable working tools.
WARNING:
In the case of liquids that are excessively hot or cold, pay attention to the risk of injury.
DANGER: Electrical hazard
Before starting work, check that the unit is unplugged and that the pump unit, the control
panel and the auxiliary control circuit cannot restart, even unintentionally.
DANGER: Electrical hazard
If the unit is connected to the frequency converter, disconnect the mains power supply and
wait at least 10 minutes for the residual current to dissipate.
6.2
Maintenance every 6 months of operation, or at the end of the
season
When the first of the two limits is reached:
1.
Check the integrity of the power supply cord; if the cable is damaged contact Xylem or the
Authorised Distributor for its replacement.
2.
Check the integrity of the float cable, if present; if the cable is damaged contact Xylem or
the Authorised Distributor for its replacement.
3.
Carefully clean the unit and the filter.
6.3
Anode maintenance
1.
After the first installation of the unit, estimate the anode wear rate, if present, by inspecting
it once a month for 6 months.
2.
Depending on the wear rate, afterwards the anode may be inspected every 3 or 6 months.
3.
The anode should be replaced when its mass falls below 150 g (5.3 oz); record all
replacements in the maintenance log.
NOTICE:
In case of excessive anode wear, see
on page 27.
