Labconco WaterPr PS Systems 90007 Series - Manuel (Page 31)

Chapter 5: Maintaining Your WaterPro PS System
27
Original Instructions
Cartridge Replacement
(1) Organic adsorption and deionization cartridges have a finite capacity for purifying water
before being exhausted. As the cartridges approach exhaustion, the system will require longer
recirculation times to achieve 16-18.2 megohm-cm resistivity and resistivity will decrease
rapidly without recovery. Replacement of the deionization and/or organic adsorption
cartridges will restore water purity. The carbon cartridge should be replaced at the same time
as the deionization cartridges are replaced.
(2) Refer to page 15 of this manual under Cartridge Replacement.
Replacement of Optional Final Filter – Catalog number 9092900
It is recommended that the optional 0.2µm hollow fiber final filter Catalog number 9092900 be
replaced every 2-3 weeks when there is an unacceptably high passage of bacteria through the filter,
or when the flow rate drops below an acceptable level. The filter should be replaced following the
steps outlined on page 16, Step 4. When it’s not required, the use of the final filter lowers flow rate
unnecessarily.
Replacement of Ultrafilter – Catalog number 9104400
On models with Ultrafilters, the Ultrafilter requires replacement if it has been damaged due to
sanitization solution or is biofouled and releasing pyrogens of bacteria into the purified water.
1. Turn OFF display with the ON/OFF switch and press the dispense button until the pressure in
the system is relieved.
2. Unplug the unit and remove four screws from the dispense housing. Lift housing away from
dispense module exposing the wiring connector.
3. Disconnect wiring connector and set housing aside.
4. Locate ultrafilter shown as Item 11 on page 14 of the Component Identification section.
5. Disconnect inlet and outlet tubing by holding in the gray collar of the fitting and removing the
tubing. Refer to Figure 3.
6. Remove the filter housing from its holder and unscrew the top exposing the ultrafilter.
7. Remove the element and replace with Catalog number 9104400. Assemble in reverse order.