Cleaning Resistivity Cell - Thermo Scientific EASYpure II RF Operating Manual And Parts List

System Sanitation
(continued)

Cleaning Resistivity Cell

Thermo Scientific
6. Drain the system as described in step 1 of this section.
7. Refill the reservoir with suitable feedwater and recirculate the water
through the system for ten minutes.
8. Drain the system as described in Step 1 of this procedure.
9. Remove the empty cartridge tubes according to the instructions in the
Cartridge Removal section. Drain and retain the empty cartridge tubes
for future use. Remove the hose barb from the draw-off valve.
10. Install and rinse new cartridges according to the instructions in the
Cartridge Installation section. Do not reinstall used cartridges or 0.2
micron final filter (they may contain large amounts of bacteria.)
11. Install and rinse new 0.2 micron final filter according to the
instructions in the 0.2 Micron Final Filter Replacement in this manual.
12. Reconnect power cord to the power entry module and turn unit on.
Press the "START" button.
Refer to Figure 9-1 on following page.
1. Turn off the EASYpure II RF. Remove the power cord.
2. Depressurize the system by opening the unit dispenser draw-off valve,
allowing water to drain until no more flows from the valve.
3. Remove the Ventgard cap.
4. Remove the screws securing the EASYpure II RF top cover.
Warning Depressurize system prior to opening cartridge access door.
Note Ensure a new o-ring is available prior to cleaning resistivity cell.
5. Remove the cover by lifting it straight up.
6. Remove the 0.2 micron final filter. Carefully remove the front cover
screws and pull the cover off. Disconnect membrane switch lead from
the display board (see Figure 9-1).
Section 9
Maintenance and Servicing
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EASYpure II RF 9-3