12-4
Nanopure™ Analytical
Thermo Scientific
Section 12
Maintenance and Servicing
This should be done prior to removing a cartridge pack. The unit needs to
be plugged in and operating to correctly perform this depressurization step.
Important
Disconnect inlet water from the left back of unit.
1. From the (Idle) display, press ENTER.
2. From “Air Purge?” press the UP arrow.
3. From “Depressurize” press the UP arrow to select (YES).
4. Press ENTER. Display will show “System Flushing” and the time
remaining as the system depressurizes.
The frequency with which you will need to clean your unit and replace
your cartridge pack is dependent on your feed water’s characteristics, your
purity requirements and your usage. Clean your Nanopure Analytical and
replace the cartridge pack when the product water purity drops below
acceptable levels of resistivity, when organic levels become too high, or if a
new 0.2 micron filter clogs rapidly after installation even though the
cartridge pack was thoroughly rinsed before the 0.2 micron filter was
installed. The simple-to-use cleaning syringe is available (Catalog Number
CMX25). This is used to effect a complete cleaning.
Warning
Depressurize system prior to removing cartridge pack.
Warning
A full cartridge pack may weigh about 20 lbs. (9 kg).
System
Depressurization
Cartridge Pack
Replacement
Figure 12-1.
Cartridge Pack Replacement
