Millipore DIRECT-Q 3 SYSTEM, User Manual

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P
RODUCT
I
NFORMATION
- 4 -
2-3 S
CHEMATIC OF
M
AIN
C
OMPONENTS
14
12
13
8
11
9
4
3
2 1
10
6 7
5
1 Booster Pump 8 6 Litre Tank
2 Inlet Solenoid Valve 9 Distribution Pump
3
SmartPak DQ3
(Pretreatment and RO Cartridge)
10 UV Lamp 185 nm (UV System)
4 RO Reject Solenoid Valve 11
SmartPak DQ3
(Ion Exchange Polisher Cartridge)
5 RO Reject Capillary 12 Product Resistivity Cell
6 Check Valve 13 Point-of-Use (POU) Solenoid Valve
7 RO Permeate Conductivity Cell 14 Final Filter
2-4 O
PERATING PRINCIPLE
Potable tap water enters the SmartPak DQ3 through the Booster Pump. The SmartPak DQ3 (called
‘SmartPak’ for the remainder of this manual) is an all-in-one twin-cartridge containing three water
purification technologies. The first cartridge combines Pretreatment media and a Reverse Osmosis (RO)
membrane. The second cartridge contains Ion Exchange resin. The SmartPak is a consumable device that
needs to be periodically replaced during the maintenance of the system.
Tap water is pretreated to protect the RO membrane from organic fouling and chlorine oxidation. The RO
membrane has 2 exiting streams. The RO water is stored temporarily in the 6 Litre tank. The ions, particles,
organic molecules and bacteria rejected by the RO membrane are sent to the drain via the Reject Tubing.
During Dispensing mode, the Distribution Pump turns on. The RO water is pumped from the tank into the
UV Lamp (UV System). The UV Lamp emits light at 185 nm and 254 nm. It is used to reduce levels of
organic molecules in the water. The UV Lamp is a consumable device that needs to be periodically replaced
during the maintenance of the system. The RO water is then sent to the Ion Exchange Polisher cartridge to
deionize the water. The Final Filter is a membrane based filter that removes all particles and bacteria with a
size greater than the filter pore size. The Final Filter is a consumable device. Product Water is regularly
recirculated to enhance the quality of water delivered from the Direct-Q.