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4.0 MACHINE OPERATION AND MAINTENANCE
The operation and maintenance of a E-CE RO Series machine is relatively simple, but requires
regular data recording and routine preventative maintenance. It cannot be emphasized enough the
importance of filling out the Daily Log Sheet (Section 7.3) during each operating shift. A Start-
Up Data Sheet was completed at start-up (Section 7.2) containing pertinent facts on the operation
of your machine. These two records are invaluable in diagnosing the performance of the equip-
ment or warranty issues, and must be kept for reference. If you have questions concerning the
operation of your machine or the method of data recording, contact the GE Osmonics Application
Engineering Department.
Three preventative maintenance procedures, which must be done on a regular basis, are as follows:
1. Change the pre-filter cartridges.
2. Flush the machine.
3. Clean the machine with approved Osmonics cleaners.
4.1 Daily Log Sheets
A Daily Log Sheet, which includes general operating conditions (pressures, flows, and
concentrations) and routine or special maintenance (pre-filter changes, flushing, cleaning,
etc.). must be kept. Copies of the Daily Log Sheet can be made from the Template
(Section 7.3). GE Osmonics will require copies of Daily Log Sheets if a warranty ques-
tion arises.
4.2 Pre-filter Cartridge
A 5 micron pre-filter cartridge is factory installed to protect the membrane elements and
valves from particles, which may be in the feed water. To order replacements, see the
Spare Parts List (P/N 1233377).
Pre-filter cartridge must be replaced, at a minimum, once per week or after every 100
hours of operation, whichever occurs first. A pressure drop across the filter of 0.6 barg
(8.7 psig) or more during operation indicates that the pre-filters cartridge(s) need chang-
ing. Use only GE Osmonics approved filters rated for 5 microns or less. Do not attempt
to clean used filters. Install new replacements.
IMPOR
TANT NOTE: Failure to change the filter according to these requirements will
void machine warranty.
4.3 Cleaning
Cleaning the E-CE RO machines on a regular basis is vital. Over time, contaminants
build-up to form a layer on membrane element surfaces, reducing the permeate flow and
quality. If this build-up is not removed from the membrane element, it may cause per-
manent chemical damage and reduce membrane element life. A decrease in permeate
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