Check The Plant Working Pressure; Check For Leaks; Check For Membranes Replacement; Shutdown Procedure - Schenker SMART 60 Installation, Use And Maintenance Manual

6 – MAINTENANCE (ROUTINE AND SPECIAL)
Purge air from the
system periodically by
opening for 2-3 minutes
the depressurization
valve at 45°.

6.2 Check the plant working pressure

It is necessary to read the pressure on the manometer
located on the front part of the watermaker in order to
perform this verification.
The working pressure depends on many factors such
as water temperature, salinity level of seawater,
effective batteries voltage, membranes cleaning
degree, typology of installation.
The pressure, in normal working conditions, is
approx. 7-7,5 Bar. Use the pressure regulating valve
to adjust the pressure. There is a small pressure drop,
in the range of 0,2 bar, during the cycle.
If the average pressure exceeds the above ranges it is necessary to check the membranes cleaning degree.
It is necessary to perform the shutdown procedure if the membranes result dirty. If cleaning also results
insufficient it could be necessary to perform an alkaline washing using the chemical product SCHENKER
CLEANING 2 (SC2). It is recommended to contact a Schenker certified service center.

6.3 Check for leaks

It is necessary to perform this verification at every plant start-up and however often, since possible leaks due
to accidental causes (hose bursting, hose clamp loosening, equipment failure, etc.) may occur, even plentiful,
with the consequence of possible damages.

6.4 Check for membranes replacement

The reverse osmosis membranes have a 7 years average working life. It is recommended therefore, after 5
years of operation, to verify the possible necessity of substitution and however to perform the substitution after
7 years.

6.5 Shutdown procedure

It is necessary to perform the shutdown procedure before standstills longer than 3 months, for instance before
the winter laying up.
The purpose of the shutdown is to flush the system from possible organic and inorganic sediments, and inhibit
the growth of bacteria that could reduce the reverse osmosis membranes efficiency.
THE PRESENT MANUAL BELONGS TO -
Every 15-20 days
Schenker Italia
35
COD: 60S12/24.B.2021
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