IONPURE IP-VNX28EP-2 Manual

IONPURE®
VNX CEDI
Modules
Operation
&
Maintenance
Manual
IP-MAN-VNX-1019-EN
Rev 1
October 2019
This manual covers
model numbers:
·IP-VNX28EP-2
·IP-VNX55EP-2
·IP-VNX55E-2
·IP-VNX55EX-2
·IP-VNX55HH-2
·IP-VNX15CDIT-2
·IP-VNX30CDIT-2
·IP-VNX-MAX-1
·IP-VNX-MINI-1
Evoqua Water Technologies, LLC
558 Clark Road
Tewksbury, Massachusetts 01876, USA
[e-mail] (email)
www.ionpure.com (web)
Visit web site to find local Ionpure contact

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TABLE OF CONTENTS
DISCLAIMER STATEMENT 5
PROPRIETARY RIGHTS STATEMENT 5
OPERATING MANUAL REVISION HISTORY 6
1. INTRODUCTION 7
1.1. VNX55 product family overview 7
1.2. Using this manual 8
1.3. Installation Precautions 8
1.4. Operating Precautions 9
1.5. Shutdown Precautions 9
2. PRE-INSTALLATION: PREPARATION & REQUIREMENTS 10
2.1. Tools Required 10
2.2. Unpacking and Moving VNX Modules 10
2.3. Electrical and Plumbing Connection Requirements 11
2.4. Operating Requirements 11
2.4.1. Operating Environment 11
2.4.2. Space Requirements 11
2.4.3. Module Orientation 12
2.4.4. Electrical Requirements 12
2.4.5. Feed Water Requirements 12
2.4.6. Drain Requirements 13
2.5. Flow Rates and pressure drops 13
3. VNX MODULE INSTALLATION 14
3.1. Preparation 14
3.2. Water Connection Configuration and Fittings 14

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3.2.1. VNX Piping Adapter Sealing Mechanism 15
3.2.2. VNX Piping Configurations 17
3.3. Electrical Connections 18
3.3.1. Electrical Precautions 18
3.4. RO/CEDI System Design Considerations 18
4. PREPARATION FOR STARTUP 20
4.1. Verify Feed Water Meets VNX Quality Requirements 20
4.2. Estimate DC Current Required 20
5. START-UP PROCEDURE 21
5.1. Test Interlocks 21
5.2. Startup of VNX Modules 21
5.3. Minimum Reject Flow Rate 21
5.4. Water Recovery 22
5.4.1. Example calculation of recovery 22
5.4.2. Example calculation of reject flow 22
6. MAINTENANCE AND TROUBLESHOOTING 23
6.1. General Maintenance Guidelines 23
6.2. Approved Cleaning Procedures 23
6.3. Cleaning and Sanitization Prompts 24
6.4. Clean-In-Place (CIP) System Construction 24
6.5. Chemical Cleaning and Sanitization Precautions 26
6.6. Typical Procedure for Cleaning or Sanitization 26
6.7. Cleaning Solution Recipes 28
7. TROUBLESHOOTING 31

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8. SHUTDOWN AND STORAGE 38
8.1. System Shutdown 38
8.2. Startup After Shutdown 38
8.3. Rebuild or Repair 38
8.4. Disposal 38
APPENDIX A: VNX MODULE SPECIFICATIONS 39
APPENDIX B: VNX55 LAYOUT & ELEVATION DRAWING B-1 42
APPENDIX B: VNX ELECTRICAL CONNECTIONS DRAWING B-2 43
APPENDIX C: VNX PORT PVC ADAPTER DRAWING C-1 44
APPENDIX C: VNX PORT PVC PLUG DRAWING C-2 45
APPENDIX C: VNX PORT PP ADAPTER DRAWING C-3 46
APPENDIX C: VNX PORT PP PLUG DRAWING C-4 47

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DISCLAIMER STATEMENT
The operation and maintenance manual should provide complete and accurate
information to meet your operating and/or service requirements based on the information
available at the time of publication. The information in this manual may not cover all
operating details or variations or provide for all conditions in connection with installation,
operation and maintenance. Should questions arise which are not answered specifically
in this manual, contact your water system supplier.
IONPURE reserves the right to make engineering refinements that may not be reflected
in these manuals. The material in these manuals is for informational purposes and is
subject to change without notice.
PROPRIETARY RIGHTS STATEMENT
This manual discloses information in which IONPURE has proprietary rights. Neither
receipt nor possession of this manual confers or transfers any right to the client, and by
its retention hereof, the client acknowledges that it will not reproduce or cause to be
reproduced, in whole or in part, any such information except by written permission from
IONPURE. The client shall have the right to use and disclose to its employees the
information contained herein for the purpose of operating and maintaining the IONPURE
equipment, and for no other purpose.
In the event the content of this manual is altered or section/items are omitted during a
reproduction, in whole or in part, and instructions or definitions within the reproduction
result in personal injury to those who follow the altered instructions, the burden of
responsibility for personal injury falls solely on the party who effects the reproduction.
MANUAL USER'S GUIDE
This manual describes the procedures necessary to install, operate, and maintain your
IONPURE Continuous Electrodeionization modules. Please read this manual carefully
before installing and operating your modules. The module warranty may be voided if
installation or operation instructions are not followed correctly.
Notes, Warnings, Cautions are used to attract attention to essential or critical information
in a manual. Warnings and Cautions will appear before the text associated with them,
and notes can appear either before or after the associated text.
NOTE: Notes are used to add information, state exceptions, and point out areas
that may be of greater interest or importance.

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Cautions indicate a situation that may cause damage or
destruction of equipment or may pose a long-term health hazard.
Warnings indicate condition, practices, or procedures which
must be observed to avoid personal injury or fatalities.
IONPURE continually strives to provide safe, efficient, trouble-free equipment using the
optimum technology for your application. If problems should develop, IONPURE's
worldwide network of technical support will be available to provide assistance. For
service, sales, parts, or additional manual copies, please visit the website:
www.ionpure.com.
OPERATING MANUAL REVISION HISTORY
Event Date Description
First publication 03-2018 VNX Family Operation & Maintenance Manual
Revision 1 10-2019
2.2 Added lifting statement for vertical installations
3.3 Added torque specification for terminal strip
Corrected flows in Table 6-1a for 55E and 55EX
Updated Section 4.2 DC Current Required

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1. INTRODUCTION
1.1.VNX55 Product Family Overview
Ionpure VNX modules are the highest flow rate CEDI devices available. Their compact
state-of-the-art design assures ease of installation, maintenance, and service. VNX
modules are available in the following sizes:
Model Number Nominal Flow Description
IP-VNX-MINI-1 52.8 gpm (12 m3/h) Small footprint, enhanced performance
IP-VNX-MAX-1 66 gpm (15 m3/h) High flow, enhanced performance
IP-VNX28EP-2 27.5 gpm (6.25 m3/h) Enhanced performance
IP-VNX55EP-2 55 gpm (12.5 m3/h) Enhanced performance
IP-VNX55E-2 55 gpm (12.5 m3/h) Microelectronics, polishing loop
IP-VNX55EX-2 55 gpm (12.5 m3/h) Microelectronics, makeup
IP-VNX55HH-2 55 gpm (12.5 m3/h) High hardness
IP-VNX15CDIT-2 15 gpm (3.4 m3/h) Thin cell
IP-VNX30CDIT-2 30 gpm (6.8 m3/h) Thin cell
For more information on the VNX module specifications and flow rates, see Section 2.4
and Appendix A of this Manual.
Figure 1-1: Angle and Side views of VNX Modules

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1.2.Using This Manual
Service technicians should review this manual prior to going to the installation site. It lists
tools and materials needed to install the modules. It also outlines the site information
required to prepare for installation.
NOTE: The warranty may be void if installation or operation instructions contained in this
manual are not followed exactly.
This manual describes the installation, operation, and routine maintenance of the VNX
modules. It also contains information on basic troubleshooting (See Section 7).
IONPURE strongly recommends all users read the entire contents of the manual. If the
VNX module is not operating properly after going through the basic troubleshooting
exercises, contact your Local Service Provider.
1.3.Installation Precautions
·During operation, the electrode wiring inside the module junction
boxes are at high voltage and present a shock hazard.
THEREFORE, BEFORE TOUCHING THE INSIDE OF THE
JUNCTION BOX, CONFIRM THAT AC POWER TO THE DC
POWER SUPPLY HAS FIRST BEEN DISCONNECTED AND
LOCKED OUT ACCORDING TO STANDARD LOCKOUT/
TAGOUT PROCEDURES.
·To minimize the possibility of electric shock, confirm that all ground
wires are properly connected.
·Do not open the VNX module. Opening the module will void the
warranty and cause irreversible damage.
·The module must be operated according to the design
specifications for temperature and humidity.
·Metal piping should never be connected directly to the module.
Non-metallic piping adapters are required at the module inlets and
outlets. It is then allowable to transition to metallic piping.
·Pipe sections prepared for installation must be inspected, and be
free of debris from storage or cutting tool particles. This must be
done before installation.
·Because VNX modules have narrow flow distribution channels,
plugging by particles can cause permanent damage. Always
install pressure gauges, sampling ports, sensors, etc. in tee
fittings. Do not drill or tap into piping.

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·Always flush out the piping to remove any debris before operating
the VNX module.
·Installation of the VNX module must be completed in accordance
with the procedures outlined in this manual. If deviations from the
prescribed procedures are deemed necessary to achieve the
desired performance, consult your local Service Provider.
1.4.Operating Precautions
·DO NOT APPLY POWER TO THE VNX MODULE UNTIL
PROPER FLOW AND PRESSURE HAVE FIRST BEEN
CHECKED AND VERIFIED.
·Never block off (dead-head) the VNX outlets. Dead-heading the
outlets can result in over-pressurization, leading to permanent
damage.
·Do not operate the module under conditions other than those
stated in the module manual. The prescribed feed water
requirements, electrical requirements, and flow configurations
must be followed at all times. If the feed water quality or the
product water requirements change, contact the IONPURE
Technical Support Department for assistance.
·Once every six months:
oMake sure all wiring connections are tight.
oTest safety interlocks such as flow switches or connections to upstream
equipment.
1.5.Shutdown Precautions
·Confirm that the pressure in the unit is relieved until all pressures inside the unit are
atmospheric (i.e., all pressure gauges should read zero).
·Drain standing water and valve off or plug all inlets and outlets. This is to minimize
bacteria growth and prevent drying of ion exchange resins during shutdown.

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2. PRE-INSTALLATION: PREPARATION & REQUIREMENTS
2.1.Tools Required
·Lifting straps and forklift or block and tackle to move the module into place
·Slip joint pliers, for tightening of plumbing connectors
·Wire cutters/strippers, for wiring connections
·Phillips head screwdriver, to connect wire at terminal strip
2.2.Unpacking and Moving VNX Modules
·After uncrating the module, inspect it for any signs of damage. If damage is apparent,
immediately notify the carrier and your CEDI System Provider.
·The VNX modules can weigh 300-600 lbs. (136-273 kg) dry, depending on size, and
will require mechanical assistance for lifting and moving into position. See Figure 2-1
for one example of how to lift a VNX module.
·For vertical installations the module can be lifted from one end (not shown).
·Ensure that lifting apparatus has appropriate load rating.
Figure 2-1 Lifting VNX module via housing FlexMounts