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Section 9
Maintenance and Servicing
RO Membrane
Replacement (cont.)
9-12
EASYpure RoDi
12. Locate the three unconnected tubes labeled FEED, PRODUCT and
REJECT.
13. Note the orientation of the membrane housing and install the
unconnected tubes into the corresponding connectors on the
membrane housing. To do so, first wet the tube end with water and
push the tube end firmly into the connector until it bottoms out. Start
with the FEED, followed by the PRODUCT and finally the REJECT
tube.
14. Fasten the membrane housing in place by stretching the springs around
the housing and hooking them on the tab cutouts in the chassis.
15. Reinstall the EASYpure RODI top cover and the Ventgard cap.
16. Again be sure the unit is placed such that the reservoir drain is over a
sink and that the drain plug has been removed.
17. Reattach power cord and feedwater supply.
18. Turn power switch on.
19. Press the "Start/Stop" switch on the keypad to start operation. The
display will show "Add" and the "RO System Operating" LED will be
illuminated.
20. Two Hour New Membrane Rinse: Allow the unit to operate until the
display shows "Er7" (approximately 2 hours.) This will rinse the
membrane of its preservatives. It is possible that during this time the
"Low RO Purity" LED may illuminate.
21. After the membrane rinse has been completed, the unit can be turned
off and the reservoir drain plug can be reinserted (insert completely,
then back out very slightly).
22. To fill reservoir, turn power on and press the "Start/Stop" switch to
start operation. During the filling process, the internal DI pump may
turn on/off and the unit display may alternate between "Add" and
displaying a purity value as the cartridges are slowly wetted. The
reservoir will be completely full (within 6 hours) when the "RO System
Operating" LED is no longer illuminated.
Thermo Scientific
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