Schematic Of Main Components; Operating Principle - Millipore DIRECT-Q 3 SYSTEM User Manual

Water purification system
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2-3 S
CHEMATIC OF
1
1
Booster Pump
2
Inlet Solenoid Valve
SmartPak DQ3
3
(Pretreatment and RO Cartridge)
4
RO Reject Solenoid Valve
5
RO Reject Capillary
6
Check Valve
7
RO Permeate Conductivity Cell
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.
M
C
AIN
2
6 7
3
5
P
RODUCT
OMPONENTS
8
10
4
9
8
6 Litre Tank
9
Distribution Pump
10
UV Lamp 185 nm (UV System)
SmartPak DQ3
11
(Ion Exchange Polisher Cartridge)
12
Product Resistivity Cell
13
Point-of-Use (POU) Solenoid Valve
14
Final Filter
- 4 -
I
NFORMATION
13
12
14
11

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