VWR avantor U Series User manual

Version 3 Issue 08/2021
VWR®U Water System
INSTRUCTION MANUAL
European Catalogue Numbers:
171-1097 VWR® U12 Water System
171-1098 VWR® U12 Water System with TOC
171-1099 VWR® U24 Water System
171-1244 VWR® U24 Water System with TOC
171-1245 VWR® U32 Water System
171-1246 VWR® U32 Water System with TOC

2vwr.com I Instruction manual VWR® U Water System
Legal Address of Manufacturer
Europe
VWR International bv
Researchpark Haasrode 2020
Geldenaaksebaan 464
B-3001 Leuven
+ 32 16 385011
be.vwr.com
UK Importer:
VWR International Ltd
Hunter Boulevard, Magna Park
Lutterworth, Leicestershire, LE17 4XN
uk.vwr.com
Country of origin China

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Table of Contents
1 INTRODUCTION
1.1 System Exterior
1.2 Product Features
1.3 Main Applications
1.4 Specifications
1.5 Operation Principles
1.6 Technical Specifications
2 INSTALLATION
2.1 Installation Site Requirements
2.2 Feed Water Requirements
2.3 Feed Water Quality Measurements
2.4 Installation
3 SYSTEM STARTUP AND OPERATION
3.1 Check List Prior to System Startup
3.2 System Initial Startup
3.3 System Setting-up
3.4 Information Menu
3.5 Maintenance Menu
4 DISPENSING WATER
4.1 Dispensing RO Water
4.2 Dispensing UP Water
4.3 Adjusting Dispense Rate
4.4 Volumetric Dispensing
5 MAINTENANCE
5.1 Basic Alerts
5.2 Basic Troubleshooting
5.3 System Cleaning
5.4 Replacing Consumables
5.5 History Inquiry and Export
6 PARTS AND ORDER INFORMATION
7 TECHNICAL SERVICE
8 WARRANTY
9 DISPOSAL

4vwr.com I Instruction manual VWR® U Water System
1 INTRODUCTION
The VWR U water system is designed to produce ultrapure water (Type I) and RO water directly
from tap water. Water quality produced meets or exceeds the corresponding ASTM, CAP, CLSI
and ISO 3696 / BS 3997 water standards.
This manual describes in detail about system performance characteristics, installation, operation,
and routine maintenance. Please read this manual thoroughly for its instructions on installation,
use and maintenance. Proper installation, use and maintenance guarantee the continuous flow
of high quality ultrapure water.
Please contact us or your local distributor if you encounter any issues during installation and use.
Professional engineers are fully trained to support you.
Safety Information
WARNING!
1) Always power down the system before plug or unplug any hardware. Never hot swap
(hot plug) any hardware, including dispenser, monitor as it may damage control
boards.
2) Disconnect the unit from the power supply prior to perform service work.
3) Refer service to qualified personnel.

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1.1 System Exterior
1
Crossbar and dispenser rest
(with optional accessories)
2
Side panel handle
3
Side panel
4
Electrical connections
5
Water outlets
6
Wall mount ports
7
Touchscreen
8
Final filter
9
Crossbar
10
Crossbar release button
11
Center post
12
Dispenser base
13
Finger rest hook
14
Corrugated tubing
15
Cable and water outlets
16
Outlets for cable or power
adapter
17
USB Port
18
SD card slot
2
1
3
4
7
5
8
Dispenser
Main System
Control Console
9
10
11
12
13
10
15
16
17
5
14
6
6
18
5

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Description of the system
The VWR U manages the production and distribution of ultrapure water and RO water from tap
water. It consists of three main units:
◆Main System: manages the production of ultrapure water and RO water.
◆Dispenser: integrates the touchscreen and manages the dispensing.
◆Control Console: controls and monitors the water system and other components on the 8-inch
touchscreen.

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1.2 Product Features
The VWR U ultrapure water system provides an integrated solution for lab water supply. This
system is easy to install, easy to operate and easy to maintain.
This system has the following features:
◆Type I ultrapure water and RO pure water are produced directly from tap water.
◆The system can be link to multiple dispensers via cable or wireless.
◆Internal P Pack cartridge removes oxidants, organics, particles and scaling ions to prevent
them from fouling the RO membranes.
◆The RO drain water is reused to increase the water yield. It is more environmentally friendly.
◆Internal RO membrane removes over 99% of large molecules and particles and 95% of ions
in water.
◆Ultra purification cartridge is filled with media to remove trace ions and organics.
◆Built-in 185/254 nm dual wavelength lamp reduces TOC level in ultrapure water.
◆On-line TOC monitor is based on complete oxidation method to obtain more accurate
measurement of the TOC.
◆Various final filters (optional) can ensure ultrapure water without particles, bacteria or
pyrogen.
◆Tank recirculation mode (optional) from a touch on the monitor guarantees high water quality
in storage.
◆RFID tags ensure perfect placement of consumables and trace their performance.
◆The control console is an 8 inch touchscreen. The console controls system and peripheral
devices (Such as dispensers and UV sanitization module). All operations can be done on the
console.
◆Water quality, operation parameters, the status of the system, dispensers, components, and
peripheral devices are stored and displayed on the large color touchscreen monitor.
◆The console screen and dispenser screens are water-proof. You may operate the console
and dispenser with wet latex gloves on.
◆Signature verification is required for maintenance and service.
◆VWR provides full documents support to meet user’s GMP, GSP, GAP, GCP, GLP
requirements.

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1.3 Main Applications
Pure water and ultrapure water can be used in many areas. Here are some typical
applications.
Ultrapure Water
RO Water
Important and critical applications
Routine and non-critical applications
•HPLC (High Performance Liquid
Chromatography) mobile phase
preparation
•Preparation of reagent blank solution
•As sample diluents for GC, HPLC,
AA, ICP-MS and other analytical
techniques
•Preparation of buffer and culture
media for mammalian cell culture
•Nano-material science
•Preparation of molecular biology
reagents, etc.
•Glassware cleaning
•Washing machine for glassware
•Water bath water
•Autoclave
•Feed water for laboratory animals
•Other routine use

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1.4 Specifications
RO Water
Water Production Rate
12/24/32 L/h at 25 oC
Dispensing Rate
Variable speed dispensing up to 2 L/min
Conductivity
Typically < 20 μS/cm (at 25 oC)
Rejection Rate
> 95%
Ultrapure Water (Type I)
Dispensing Rate
Variable speed dispensing up to 2 L/min
Resistivity
18.2 MΩ.cm (at 25 oC)
TOC
< 5 ppb
Particles (>0.2 μm)
No particles (with a 0.2 μm final filter or Bio-filter)
Microorganism
< 0.01 cfu/mL (with a 0.2 μm final filter or Bio-filter)
Pyrogen Content
< 0.001 EU/mL (with Bio-filter)
RNases
< 0.5 pg/mL (with Bio-filter)
DNases
< 10 pg/mL (with Bio-filter)
Electrical Connections and Specifications
Operating Voltage
24 VDC
Input Voltage
100 – 240 VAC
Main System Power
< 200 W
Dimensions and Weights
Main System
Width × depth x height
32 × 44 × 54 cm (12.6 × 17.3 × 21.3 in)
System Weight
20 kg
Control Console
Length x width
22 × 17 cm (8.7 × 6.7 in)
Control Console Weight
0.75 kg
Dispenser
Width × depth x height
21× 29 × 61 cm (8.3 × 11.4 × 24.0 in)
Dispenser Weight
5 kg

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1.5 Operation Principles
VWR U water system produces ultrapure water and pure water directly from tap water. Most
particles, ions and organic compounds are removed through the pre-filtration, RO membrane, then
the RO water goes to the storage tank. When in need of ultrapure (UP) water, RO water goes
through a UV lamp chamber with a dual wavelength UV lamp to destroy trace organic pollutants in
water, then through a polishing cartridge to remove the last trace of ions, then a 0.2 μm final filter
to the outlet.
VWR U Water Flow Diagram
No.
Description
No.
Description
C1
RO Booster Pump
C2
Distribution Pump
I1
Feed Conductivity Sensor
I2
RO Conductivity Sensor
I3
Tank water Resistivity Sensor
(optional)
I4
TOC Sensor
I5
UP Resistivity Sensor
J
Pure Water Tank
N2
185 nm UV Lamp
N3
Tank UV Lamp
O1
AC Pack
O2
P Pack
O3
U Pack
O4
H Pack
O5
T Pack (optional)
O5
RO Pack(s)
P
Pressure Sensor
S1
Inlet Filter
S2
Inline Filter
V
Flow Meter
W
Tank Vent Filter
I1
N2
P
O4
C1
O1
J
I4
I2
O3
I5
N3
O6
Tap water
O2
O5
S1
S2
I3
UP Dispenser
HP Dispenser
V
C2

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1.6 Technical Specifications
Measurement Range
Channel A (Feed Water): 1 – 1999 μS/cm
Channel B (RO): 1 – 199 μS/cm
Channel C (UP): 1 –18.2 MΩ·cm
Channel D (HP): 1 –18.2 MΩ·cm
Pressure Range
0 – 1.6 MPa
Flow Meter Range
1 – 30 L/min
Temperature Range
0 – 100 oC
Tank Level
0 – 2 m Continuous display, or 0 – 3 m submersible sensor
Temperature Compensation
Range
Automatic temperature compensation of readings
Temperature compensation range: 5 – 45 oC to 25 oC

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2 INSTALLATION
2.1 Installation Site Requirements
Item
Requirements
Installation space
≥ 90 cm×50 cm total
Feed water
Municipal water, outlet diameter > DN 20, ball
valve, NPT thread
Drain water tubing
> DN 50
Working Temperature
5 –45 oC
Power
100 –240 VAC ± 10%, 1 KW (5 A)
Humidity
20 –80%
2.2 Feed Water Requirements
Parameter
Value or Range
Pressure
15 –90 psi (1.0 - 6.0 bar)
If the pressure is above 6.0 bar, needs to install
an external pressure regulator.
Conductivity at 25 °C
< 2000 μS/cm
pH
4 –10
Water temperature
5 –45 oC
Total dissolved solids (TDS)
< 1000 ppm
Total Organic Carbon (TOC)
< 2000 ppb
Hardness (as CaCO3)
< 120 mg/L (< 120 ppm): use 171-1255
120 –180 ppm: use 171-1256
> 180 ppm: softener recommended
Free or total chlorine
< 1.5 ppm
2.3 Feed Water Quality Measurements
Parameter
Test Method
Pressure
Use a pressure gauge
Conductivity at 25 °C
Use a conductivity meter
pH
Use a pH test strip
Hardness and chlorine
Use a reputable brand test strip
Total dissolved solids (TDS)
Use a TDS meter
Total Organic Carbon (TOC)
Use a TOC analyzer

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2.4 Installation
2.4.1 Items Included
Package
No.
Name
Quantity
Note
1
VWR U Main System
1
2
Control Console
1
Including a cable connected to main
system
3
Accessories Bag
1
Including 8 mm PE tubing (8 meter), one
roll of Teflon tape, PE a male connector,
and a power adapter (with power cords)
4
instruction Manual
1
On USB
5
Quick Installation Guide
1
2.4.2 System Structure and Flow Diagrams
2.4.2.1 Main System Back Side View
Illustration of water inlets and outlets
No.
Label
Description
Tubing Diameter
Connect to
A
HP Dispenser A
For pure water
8 mm
Dispenser
B
HP Dispenser B
For pure water
8 mm
Dispenser
C
EDI Drain
Spare
8 mm
D
Pure Water In
From the tank
8 mm
Pure water tank
E
Product To Tank
RO product outlet
8 mm
Pure water tank
F
UP Dispenser A
For ultrapure water
8 mm
Dispenser
G
UP Dispenser B
For ultrapure water
8 mm
Dispenser
H
RO Drain
RO drain outlet
8 mm
Drain
I
Tap Water In
Tap water inlet
8 mm
Tap water
J
Spare
Spare
8 mm
A
I
H
G
F
E
D
C
B
J

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Description of electrical control board
No.
Label
Description
Connect to
1
Feed Valve
For the feed solenoid valve control
line
Feed solenoid valve
(optional)
2
Tank UV
For the sanitization module control
line
Automatic sanitization
module
3
Feed Pump
For the booster pump control line
Booster pump (optional)
4
Power
Power cord port
Power adapter
5
Prefilter Sensor
For backwash signal line
Prefiltration (optional)
6
Overflow Sensor
For overflow sensor signal line
Overflow sensor
7
Leak Sensor
For leak sensor signal line
Leak sensor (optional)
8
Level Sensor
For the pure water tank level
sensor control line
Pure water tank level sensor
9
CAN A
Data cable port
Dispenser or control console
10
CAN B
Data cable port
Dispenser or control console
1
9
8
7
6
5
4
3
2
10

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2.4.2.2 VWR U External Connection Diagram
Red Line: Electrical loop
Blue Line: Water loop
Level sensor
Tap
water
Power
supply
Feed valve
Leak sensor

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2.4.3 Installing the Leak Protector
2.4.3.1 Leak Protector Specifications
Catalog No.
171-1476
Operating voltage
24 V DC
3
3 m to solenoid valve
Fitting
1/2 ″ female BSP (Inlet)-8 mm quick
connector (Outlet)
Method of water leak detection
Conductivity. Put the sensor near the
water system
Operating temperature
5 –45 oC
Maximum inlet pressure
6 bar (90 psi)
2.4.3.2 Illustration of Installation
Outlet
Inle
t
Feed valve
Leak
sensor
Terminals

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2.4.3.3 Installation
Follow the steps below if the diameter of the faucet is 1/2 inch male thread.
a) As the picture shown above, connect the inlet of the feed valve to the faucet.
b) Cut an appropriate length of 8 mm PE tubing. Insert one end of the tubing into the port
Tap Water In on the main system and the other end into the outlet of the feed valve.
c) Place the sensor metal probes side down at a lower point on the floor or near the water
system.
d) Plug the terminal of feed valve into the port Feed Valve on the back of the main system,
and plug the terminal of leak sensor into the port Leak Sensor.
Follow the steps below if your system is equipped with a prefiltration device.
a) As the picture shown above, connect the inlet of feed valve to the faucet.
b) Cut an appropriate length of 8 mm PE tubing. Insert one end of the tubing into the inlet of
prefiltration device and the other end into the outlet of the feed valve.
c) Similarly, cut another appropriate length of 8 mm PE tubing. Insert one end of the tubing
into the port Tap Water In of the main system and the other end into the outlet of the
prefiltration device.
d) Place the sensor metal probes side down on the floor or near the water system.
e) Plug the terminal of feed valve into the port Feed Valve on the back of the main system,
and plug the terminal of leak sensor into the port Leak Sensor.
2.4.3.4 Instruction for use
The leak protector is activated automatically when the system powers up.
When it detects water, the system will shut the Feed Valve down, and switch to Standby mode
automatically. A red icon will appear on the screen and an alarm message box will pop
up. The message “Leak or Tank Overflow, all valves are closed, system could run after
troubleshooting” will disappear by tapping Confirm when the leak is resolved. Switch
system from Standby to Ready mode manually so system will work again.
Outlet
Connect to Feed
Valve port

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2.4.4 Installing the Dispensers
This water system offers two different dispensers: Dispenser 1 has an anchor base and stand,
while Dispenser 3 is anchored on the system itself with no dispenser base.
2.4.4.1 Installing the Dispenser 1
`
No.
Description
Connect to
A
8 mm tubing port
Main system
B
8 mm tubing port
Main system
C
Data cable port
Main system or power
D
Data cable port
Main system or power
E
Foot switch port
Foot switch (Optional)
2.4.4.1.1 Items included
Package
No.
Name
Quantity
Note
1
Dispenser base
1
The handle is connected to the base with
corrugated pipe.
2
Center post
1
With Screw
3
Crossbar
1
4
Accessories bag
1
Including one roll of PVC tubing, a male
barb connector and an Allen wrench.
A
B
C
D
E

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2.4.4.1.2 Installing the Dispenser 1 Kit (171-1273)
a) Open the package and take out the dispenser from the package. Set the dispenser base on a
stable surface. This kit comes with a 3-meter link bundle.
b) Install the dispenser center post to the base, then insert the crossbar on the center post, place
the dispenser handle on the magnetic base of the dispenser arm.
c) Take the tubing bundle out from the package, including two pieces of tubing and a cable.
Install the tubing and cable as shown in the pictures below.
Cable
Tubing
UP Dispenser
HP Dispenser
Connection of one dispenser for UP water and another dispenser for HP water.
Connection of multiple dispensers for UP water or HP water.
UP Dispenser A
UP Dispenser B
CAN A
Straight connector
Crossbar
Center post
Handle

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2.4.4.2 Dispenser 3 (Optional)
No.
Description
Connect to
1
Touch screen
2
Dispense button
3
Dispenser tubing connector
Main system
4
Dispenser cable connector
Main system
Package
No.
Name
Quantity
Note
1
Dispenser
1
2
Base kit
1
Including screws
3
Accessories bag
1
One dispenser adapter, two 8 mm tee
connectors, two 8 mm quick connectors,
eight 8 mm lock-clamps, two 6 mm lock-
clamps, 1.5 m CAN cable