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Z Series RO System by GE Osmonics
13. Turn off the RO unit when the operating parameters (% Rejection, TDS, pH) have
normalized.
14. Reconnect the RO product line to the Product Divert Valve Assembly.
15. Remove the “Do Not Use/Contains Cleaner” warning label.
CAUTION:
The RO should be disinfected after cleaning procedures are completed.
4.3.1.3 BIOSAN™ (Low pH Cleaner) Cleaning Procedure
1. With the RO unit operating establish a pre-cleaning % rejection, TDS, and pH
record on the cleaning disinfect log sheet.
NOTE:
If your RO system is equipped with a "submersible" high-pressure pump, the
pump/motor housing must be purged of all air during the start-up procedure. Turn on the
RO system and open the small valve on the top end of the pump/motor housing very
slowly to purge. Air should be heard escaping to the atmosphere. Close the valve when
water is seen flowing from this valve.
2. Turn off the RO unit power switch.
3. Label machine with appropriate warning signs such as "Do Not Use / Contains
Cleaner" to prevent use of the RO until it is properly rinsed.
4. Remove the RO product line from the Product Divert Valve Assembly (RO
Product Water connection) and connect to one of the upper connection ports on
the cleaning tank.
5. Prepare a 10% solution of BIOSAN™ by mixing 1 part BIOSAN™ to 9 parts RO
product water.
a. Use the RO unit to fill the cleaning tank with 9 gallons of product water and
turn off the RO.
b. Add 1 gallon of BIOSAN™ to the cleaning tank and mix well.
6. Connect a cleaning line hose between the Disinfect Inlet Valve on the RO and the
lower connection port on the cleaning tank.
7. Remove the RO waste line from drain and connect to an upper connection port on
the cleaning tank.
8. Open the Disinfect Inlet Valve and the Waste Flow Valve (counter clockwise) on
the RO unit.
1238339b – 16Oct03 4 - 13 Routine Maintenance