Maintenance; Safety Instructions; Recommended Service Parts; Special Tools - Grundfos Selcoperm SES 125-2000 Instructions Manual

12. Maintenance

For locating the components, see figures in sections Selcoperm
electrolyser and Piping and instrumentation diagram.
Related information
6.3.1 Selcoperm electrolyser
6.4 Piping and instrumentation diagram (PID)

12.1 Safety instructions

Cleaning and basic maintenance must only be carried out
by authorised and qualified staff.
The basic maintenance tasks must be performed by
trained users.
The advanced maintenance tasks must only be performed
by qualified service persons.
Shut down the whole system before any work on the
system components and lines.
Separate the system from the power supply before any
work on the system components and lines.
Wear the stipulated personal protective equipment
(protective clothing, goggles, respirator etc.).
Observe the chemical manufacturer's safety data sheets
(MSDS) and safety instructions of the used chemicals.
Safety installations, which have been disabled or removed
during maintenance, must be enabled or installed again
immediately after maintenance.
Before starting any work in the ATEX zone, stop the
Selcoperm system and wait until the air dilution fan stops.
When the Selcoperm system is stopped via control panel
or via external contact, the air dilution fan (19) continues
running for some minutes. This ensures the removal of
residual hydrogen gas from the system, lines and NaClO
solution storage tank.
Wait until the air dilution fan stops before starting any work
at the system, lines and NaClO solution storage tank!
In case of power failure, wait at least 30 minutes before
starting any work at the system, lines and NaClO solution
storage tank!
WARNING
Electric shock
Death or serious personal injury
Liquids on electrical components can lead to electric
shock. Damage to the equipment can be caused by short
circuits.
‐
Keep all electrical components dry.
‐
Cover electrical components during maintenance with
a watertight foil.
CAUTION
Chemical hazard
Minor or moderate personal injury
Sodium hypochlorite solution tends to emit chlorine gas.
‐
When working with open tanks or lines, wear
appropriate personal protective equipment.
Rinse removed parts with clean water.
Before reassembling make sure, that all parts are clean,
dry and undamaged.
Spare parts see Appendix.

12.2 Recommended service parts

The recommended service parts include parts for maintenance after
two years (maintenance kit for brine pump and for Selcoperm
electrolyser).
Description
Maintenance kits for systems from week 04-2012
Selcoperm SES 125-500
Selcoperm SES 1000-2000
Maintenance kits for systems from week 40-2019
Maintenance kit for SES 125-2000:
double-ball brine valve (water softener), spring-
loaded brine-injection valve
Maintenance kit for SES 125-500: brine pump
Maintenance kit for SES 1000-2000: brine pump
Maintenance kit for SES 125-2000: O-rings and
gaskets
See also the service kit catalogue and Grundfos Product Center
(https://product-selection.grundfos.com).

12.3 Special tools

12.3.1 Selcoperm test kit
The Selcoperm test kit comprises:
• Measuring cylinder
• Total hardness test for titrimetric determination of the water
hardness
• Thermometer
• Spindle for specific gravity measurement
• Titration set for measurement of the chlorine concentration in
the sodium hypochlorite solution
• Operating instructions.
Description
Secloperm test kit
Spare parts see IO Selcoperm test kit.
Product
number
98047506
98047507
99710096
97751474
97751510
98531493
Product
number
98842487
39