English (GB)
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1. Place the Grundfos acid cleaning station near to the
Selcoperm electrolyser.
– Observe the length of the electrical and hydraulic lines.
2. Make sure the hydrochloric acid used for the acid cleaning is
of high grade, free from fluoride and in the concentration
range of 7-9 % by weight.
3. Make sure the tank of the acid cleaning station is filled with a
sufficient amount of hydrochloric acid:
– SES-5000, -7500: min. 60 l
– SES-10000, -15000: min. 100 l
– SES-20000, -30000: min. 170 l
– SES-45000: min. 230 l.
4. Open menu "
System menu
>
Service menu
>
Service Acid
Cleaning
" to start the acid cleaning process.
– A login with user level 3 (
Commissioning staff
) or higher is
required. See section
– A security query must be confirmed before menu "
Service
Acid Cleaning
" is opened.
5. For details on the menu see section
.
6. Follow the steps in the menu. Observe the following
information on the individual steps:
• Step: "
Waiting
>
Waiting for system to end process
"
– The system ends the production process. There are delay
times which need to elapse before the next step can be
performed. See section
.
• Step: "
Draining
>
draining cells
"
– Before confirming this step, inspect the cells visually and
make sure, that the cells are completely drained. After the
lowest electrolysis cells are emptied, it takes 5-10 minutes
until the lines in the hydraulic chamber are completely
empty.
• Step: "
Flushing
>
filling cells
"
– The solenoid valve (0.05) is automatically closed when the
first level switch (1.09, 2.09, 3.09) detects liquid.
• Step: "
Flushing
>
draining cells
"
– Before confirming this step, inspect the cells visually and
make sure, that the cells are completely drained.
• Step: "
Acid Cleaning
>
fill cells until electrodes covered
"
– Inspect the filling level in the electrolysis cells visually. Stop
filling by confirming this step as soon as the electrodes are
completely covered with acid.
• Step: "
Acid Cleaning
>
reaction time
"
– The timer on the display is only a guiding value. Watch the
chemical reaction in the electrolysis cells. Confirm the step,
if the reaction has stopped.
• Step: "
Acid Cleaning
>
draining cells
"
– Before confirming this step, inspect the cells visually and
make sure, that the cells are completely drained.
10. Decommissioning
10.1 Short-term decommissioning up to 4 weeks
1. Push [
].
– The system stops. No further actions must be taken.
10.1.1 Recommissioning
Before recommissioning the system, perform the following
checks:
•
7.1 Checks before commissioning
•
7.2.4 Checking and adjusting the soft water flow and the
salinity of the electrolyte
1. Push [
].
10.2 Decommissioning up to 6 months
This task must be performed by certified service persons.
1. Push [
].
– The system stops.
2. Flush the system. See section
.
3. Close water inlet valve (V0.01).
4. Close brine inlet valve (V0.10).
5. Switch off the main switch of the Selcoperm electrolyser. See
section
.
6. Switch off the power supply of the rectifier.
7. Flush the brine dosing station. See section
.
10.2.1 Recommissioning
1. Switch on the power supply of the Selcoperm electrolyser and
the rectifier.
2. Open water inlet valve (V0.01) and brine inlet valve (V0.10).
3. Before recommissioning the system, perform the following
checks:
–
7.1 Checks before commissioning
–
7.2.4 Checking and adjusting the soft water flow and the
4. Push [
].
10.3 Decommissioning for more than 6 months
This task must be performed by certified service persons.
1. Push [
].
– The system stops.
2. Flush the system. See section
.
3. Drain the system. See section
4. Close water inlet valve (V0.01).
5. Close brine inlet valve (V0.10).
6. Switch off the main switch of the Selcoperm electrolyser. See
section
.
7. Switch off the power supply of the rectifier.
8. Flush the brine dosing station. See section
.
10.3.1 Recommissioning
See section
.
The acid cleaning process can also be done with
30-40 % citric acid. When using citric acid, the
cleaning process can take longer.
If the acid cleaning process is started, it cannot be
aborted. Safe production is only ensured, if the
process is performed completely.