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5.4
In order to monitor performance of the RO machine, regularly keep record of operation
and write down parameter readings. Use membrane manufacturer's software tools for
normalization to control for fluctuations of pressure, temperature, and other operating conditions.
5.5
Change polypropylene cartridge when it has clogged. Pressure drop of 0,1 MPa or greater
on the sediment filter indicates that filter cartridge needs to be replaced as soon as possible.
5.6
Perform CIP or another suitable chemical cleaning protocol when any of the following
conditions are encountered:
• normalized permeate flow rate drops 10-15% of its initial value;
• normalized conductivity of permeate increases 10-15% of initial value, raw water
conductivity remaining at the same level;
• normalized pressure drop along the membrane module increases 10-15% of its initial
value.
5.7
After installing freshly cleaned membrane, perform 1 hour rinse discarding all permeate
and concentrate. If chemical cleaning fails to restore normalized flow or rejection to design
specifications, membrane element is irreparably fouled and has to be replaced.
5.8
To prevent microbial contamination, 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 preservative
solution. Preservative treatment is accomplished by circulating 1% sodium metabisulfite solution
through the membrane module for 30 minutes or by preparing metabisulfite solution of the above
strength in the module. Before resuming operation of a machine that had been treated with
preservative, rinse the membrane.
Do not use supply water with over 0,1 mg/L of free chlorine without pre treatment with
activated carbon or other means of dechlorination. Chlorine will destroy the membrane.
5.9
To replace sediment filter cartridge proceed as follows:
• remove the power from the unit;
• shut off water supply and relieve pressure;
• screw off filter 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.
Do not torque over 2 kgf×m when tightening bowl.
This manual is the intellectual property of Ecosoft. Copying and reprinting is prohibited. © 2017
INSTRUCTION MANUAL ECOSOFT RO SYSTEM MINI (MO-6500, MO-12000, MO-24000)
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