Parker Pure Water Series, Установка, эксплуатация и обслуживание

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MAINTENANCE
5.0 MAINTENANCE
The service life of most system equipment is directly related to proper maintenance and to the raw water inlet
conditions. Improper maintenance will reduce the life expectancy of the major unit components (such as the
membranes, filters and pumps) as well as the reliability of the unit as a whole. Under normal conditions a reverse
osmosis membrane (which is the major consumable item) should have an effective service life somewhere between 3
and 5 years.
Table 5.1: Maintenance Task Chart.
* VMT prefilter cartridges can be rinsed with freshwater and be reused up to 3 times.
**
Change pump oil after first 50 hours of RO use. After the first oil change at 50 hours, change the
pump oil every 500 hours thereafter or once annually which ever interval comes first.
FRESHWATER FLUSH / SHORT TERM STORAGE
The watermaker performs optimally when used regularly. The likelihood of bacterial and biological
growth in the membranes increases when stagnant seawater (in extended periods) is in contact with the
membranes. A freshwater flush procedure is necessary to prevent clogging and growth of organic
contaminants in the RO system and its membranes. The flush pushes out older stagnant seawater
(saltwater) out of the membranes and replacing it with freshwater (non-saltwater), leaving less chance
of fouling the membranes. The freshwater flush procedure should be used when the unit will be placed
idle or in “stand by” condition for more than one or two days. Although they do not attack the
membranes or other system components directly, high concentrations of biological matter can block
enough of the product water channels to cause a reduction of as much as 40% of the total system
capacity.
PERFORM A FRESHWATER FLUSH TO THE RO UNIT WITH NON-CHLORINATED FRESH WATER
ONLY. THE FRESHWATER FLUSH SYSTEM USES A CARBON FILTER TO CONSUME THE
CHLORINE THAT MAY BE PRESENT FROM THE DOCK WATER.
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Clean/inspect micron prefilter

0.5
Replace filter(s)* based on pressure drop

0.5
Replace carbon flush filter

0.5
Clean membranes

2.0
Replace Membranes

3.0
Check pump oil level

0.1
Change pump oil
**

0.5