flow and/or rejection of salts, or an increased pressure drop across the machine will indi- cate when cleaning is required. GE Osmonics recommends cleaning at least every month to assure good membrane element performance and long membrane element life.
GE Osmonics offers a full line of chemical cleaners for specific cleaning needs. Refer to the Spare Parts List (P/N 1233377).
To clean membrane elements:
STEPS
1.The
2.With the
3.With the machine OFF, close the service inlet and concentrate valves and open the CIP inlet and concentrate valves. This will divert permeate and concentrate streams to the cleaning container for recirculation. Insure that the
4.Press the CIP button so it is in the ON position. The cleaning solution should be recirculated for approximately fifteen (15) minutes or until the solution tempera- ture reaches 38°C (100°F). DO NOT EXCEED 43°C (110°F). The membrane elements can only handle temperatures in excess or 29°C (85°F) for short periods of time. If heat rise occurs to quickly, larger volumes of cleaning solution or the use of a heat exchanger will slow the temperature rise. Press the CIP button so it is in the OFF position and allow the machine to soak for ten (10) minutes.
CAUTION Do not leave the cleaning strength solution in the machine for a period longer than one hour. The cleaning solution may damage the membrane elements and the machine during an extended period of contact.
5.To flush the detergent from the machine, close the CIP inlet valve, open the ser- vice inlet valve, and divert permeate and concentrate to the drain by opening the CIP drain valve. Press the RO ON/OFF button so it is in the ON position to
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