Ecosoft MO6500BWTSS - Page 10

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INSTRUCTION MANUAL ECOSOFT RO SYSTEM MO6500BWTSS
5.6 Perform CIP or another suitable chemical cleaning protocol when any of the following
condions are encountered:
• normalized permeate ow rate drops 10-15% of its inial value;
• normalized conducvity of permeate increases 10-15% of inial value, raw water
conducvity remaining at the same level;
• normalized pressure drop along the membrane array rises 10-15% of its inial value.
5.7 Aer installing freshly cleaned membrane, perform 1 hour rinse discarding all permeate
and concentrate. If chemical cleaning fails to restore normalized ow or rejecon to design
specicaons, membrane element is irreparably fouled and has to be replaced.
5.8 To prevent microbial contaminaon, the unit should be operated for at least 1 hour a day.
In case 48 hours or longer shutdown is to occur, membrane should be treated with preservave
soluon. Preservave treatment is accomplished by circulang 1% sodium metabisulte soluon
through the membrane module for 30 minutes or by preparing metabisulte soluon of the above
strength in the module. Before resuming operaon of a machine that had been treated with
preservave, rinse the membrane.
Do not use supply water with over 0.1 mg/L of free chlorine without pre treatment with
acvated carbon or other means of dechlorinaon. Chlorine will destroy the membrane.
5.9 To replace sediment lter cartridge proceed as follows:
• remove the power from the unit;
• shut o water supply and relieve pressure;
• screw o lter bowl and remove it, taking care not to spill water on parts of the unit;
• remove spent cartridge from the bowl, place a clean one inside and screw the bowl back on.
5.10 To replace membrane element proceed as follows:
• remove the power from the unit;
• shut o water supply and relieve pressure;
• disconnect feed, permeate, and concentrate tube connecons at membrane module
outlets;
• unfasten clamps holding the pressure vessel and take down the vessel;
• remove caps from the pressure vessel;
• push the membrane element from the feed end towards the discharge end (in the
direcon of the arrow). Extract the membrane element by pulling it at the discharge end
of the vessel;
• install new membrane element, observing ow direcon as indicated by the arrow;
• fasten the caps and install the vessel back in place;
• re-connect tubes back to the vessel.