MAINTENANCE
Milli-Q Synthesis/Synthesis A10 65
6-4 HOW TO REPLACE THE MILLIPAK
The Millipak is normally replaced when the Q-Gard Pack and Quantum Cartridge are replaced. The Millipak may
need to be replaced at an earlier time if it becomes clogged. A clogged Millipak will considerably reduce the
Milli-Q Product Water flowrate.
Follow the steps below to replace the Millipak.
Make sure the Q-Gard Pack and Quantum Cartridge have been air purged. Make sure they have been
hydrated overnight.
Remove the Barbed Fitting and Tygon Tubing from the POU Dispenser.
Screw the Millipak onto the POU Dispenser. Turn it until it is handtight. Do not overtighten the Millipak.
Do not use Teflon Tape on the threads of the Millipak.
The
POU Dispenser has an O-ring inside which provides a watertight
seal.
Move the POU Dispenser Trigger forwards. This will bring the Milli-Q system into PRODUCT Mode.
Locate the air vent valve on the top side (clear side) of the Millipak. Open this slowly but do not remove the
air vent from the Millipak. Allow any air on the clear side of the Millipak to be vented out.
Dispense about 5 Litres of water. Make sure all air is purged out.
Air will not pass through the membrane filter in the Millipak. If there
is trapped air in the Millipak, then a reduction in Product Water flowrate can
result.
Move the POU Dispenser Trigger back to the upright position. The Milli-Q will go into PRE OPERATE Mode
after 90 seconds. Leave the Milli-Q in PRE OPERATE Mode.
It is highly recommended not to put Tygon Tubing or any other type
of tubing on the end of the Millipak. This can compromise the Product
Water quality.
The Millipak is now installed and rinsed out.
At this time, it is highly recommended to recalibrate the Product Water flowrate from
the Milli-Q. See Section 4-10 ‘How to calibrate ...’ for more information.
Remember to leave the Milli-Q in PRE OPERATE Mode during times of non use (i.e. evenings,
weekends, holidays, ...).
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