IONPURE IP-VNX28EP-2 Operation & Maintenance Manual
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IONPURE IP-VNX28EP-2 Operation & Maintenance Manual

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Evoqua Water Technologies, LLC
558 Clark Road
Tewksbury, Massachusetts 01876, USA
ionpure@evoqua.com
www.ionpure.com
Visit web site to find local Ionpure contact
(email)
(web)
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
®

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Summary of Contents for IONPURE IP-VNX28EP-2

  • Page 1 · IP-VNX28EP-2 · IP-VNX55EP-2 · IP-VNX55E-2 · IP-VNX55EX-2 · IP-VNX55HH-2 Evoqua Water Technologies, LLC 558 Clark Road · IP-VNX15CDIT-2 Tewksbury, Massachusetts 01876, USA · IP-VNX30CDIT-2 ionpure@evoqua.com (email) · IP-VNX-MAX-1 www.ionpure.com (web) · IP-VNX-MINI-1 Visit web site to find local Ionpure contact...

  • Page 2: Table Of Contents

    ® IONPURE VNX CEDI Modules TABLE OF CONTENTS DISCLAIMER STATEMENT PROPRIETARY RIGHTS STATEMENT OPERATING MANUAL REVISION HISTORY INTRODUCTION 1.1. VNX55 product family overview 1.2. Using this manual 1.3. Installation Precautions 1.4. Operating Precautions 1.5. Shutdown Precautions PRE-INSTALLATION: PREPARATION & REQUIREMENTS 2.1.
  • Page 3 ® IONPURE VNX CEDI Modules 3.2.1. VNX Piping Adapter Sealing Mechanism 3.2.2. VNX Piping Configurations 3.3. Electrical Connections 3.3.1. Electrical Precautions 3.4. RO/CEDI System Design Considerations PREPARATION FOR STARTUP 4.1. Verify Feed Water Meets VNX Quality Requirements 4.2. Estimate DC Current Required START-UP PROCEDURE 5.1.
  • Page 4 ® IONPURE VNX CEDI Modules SHUTDOWN AND STORAGE 8.1. System Shutdown 8.2. Startup After Shutdown 8.3. Rebuild or Repair 8.4. Disposal APPENDIX A: VNX MODULE SPECIFICATIONS APPENDIX B: VNX55 LAYOUT & ELEVATION DRAWING B-1 APPENDIX B: VNX ELECTRICAL CONNECTIONS DRAWING B-2...

  • Page 5: Disclaimer Statement

    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.

  • Page 6: Operating Manual Revision History

    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.

  • Page 7: Introduction

    VNX CEDI Modules 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:...

  • Page 8: Using This Manual

    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.

  • Page 9: Operating Precautions

    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: o Make sure all wiring connections are tight.

  • Page 10: Pre-Installation: Preparation & Requirements

    ® IONPURE VNX CEDI Modules 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 ·...

  • Page 11: Electrical And Plumbing Connection Requirements

    · Connection of the DC power supply to the VNX module requires 12 AWG (3.31 mm wire. All wiring should be done in accordance with local electrical codes. · Ionpure VNX modules have cast metal end blocks with four (4) custom, ACME-thread FEMALE connection points. These require special plumbing adapters or plugs, constructed to the drawings provided in Appendix B.

  • Page 12: Module Orientation

    DC Volts DC Amps IP-VNX-MINI 52.8 gpm (12 m 1 - 7 IP-VNX-MAX 66 gpm (15 m 1 - 7 IP-VNX28EP-2 27.5 gpm (6.25 m 1 - 6.6 IP-VNX55EP-2 55 gpm (12.5 m 2 - 13.2 IP-VNX55E-2 55 gpm (12.5 m 10 - 13.2...

  • Page 13: Drain Requirements

    ® IONPURE VNX CEDI Modules Ionpure.com for additional reject stream system design guidance including the following paper: “Process and System Design for Reliable Operation of RO/CEDI Systems”, Jonathan Wood and Joe Gifford, International Water Conference, 2004 (Paper 47). Table 2-3. Feed Water Requirements (except hardness, silica), also see A.3...

  • Page 14: Vnx Module Installation

    ® IONPURE VNX CEDI Modules 3. VNX MODULE INSTALLATION 3.1. Preparation Confirm that the pre-installation requirements outlined in Section 2 are met and the system is ready for VNX Module installation. · Remove any packaging materials and move the module to its operating location.

  • Page 15: Vnx Piping Adapter Sealing Mechanism

    ® IONPURE VNX CEDI Modules Ionpure VNX modules have a cast aluminum endplate with female ACME thread connections. There are four (4) connection points: · Product (Dilute) Inlet · Product (Dilute) Outlet · Reject (Concentrate) Inlet · Reject (Concentrate) Outlet Product and reject port locations are identified with color coded labels affixed near the appropriate endblock connection points.
  • Page 16 ® IONPURE VNX CEDI Modules Figure 3-3 VNX Piping Adapter Sealing Mechanism Do not install O-rings on the circumference of the VNX ACME-thread piping adapters or plugs. The O-rings make it more difficult to properly tighten these parts. Tighten the adapter or plug until the gap between the endblock and the “shoulder” on the piping adapter or plug is between 0.03”...

  • Page 17: Vnx Piping Configurations

    Consult the table below for the correct configuration for your specific VNX module. Table 3-1 VNX Module Piping Connections Model Recommended Configuration Comments Product: IP-VNX28EP-2 Inlet & outlet on same side OR IP-VNX55EP-2 Inlet & outlet on opposite sides IP-VNX55HH-2 IP-VNX15CDIT-2...

  • Page 18: Electrical Connections

    ® IONPURE VNX CEDI Modules 3.3. Electrical Connections All VNX modules have an on-board electrical junction box to allow convenient connection of the module to the DC power supply that provides the driving force for the electrodeionization process. Only one electrical connection is required per module.

  • Page 19: Cedi System Design Considerations

    ® IONPURE VNX CEDI Modules · Ensure that polarity of DC connections is correct before applying DC power. Operation with polarity reversed will permanently damage the cathode. It is critical that the red and black wires are correctly oriented on the positive (+) and negative (-) terminal blocks.

  • Page 20: Preparation For Startup

    · Feed water carbon dioxide concentration (requires test kit such as above) · Feed water silica concentration (usually low enough to be neglected) · Product water quality required The best way to determine the amount of DC current required is to use the Ionpure projection tool, IP-PRO: https://ippro.evoqua.com/ Alternatively, it can be estimated using the equation below (based on Faraday’s Law).

  • Page 21: Start-Up Procedure

    ® IONPURE VNX CEDI Modules 5. START-UP PROCEDURE 5.1. Test Interlocks · Test flow switches and other interlocks, including the RO interlock if applicable · Test pressure relief if applicable · Set alarm points 5.2. Startup of VNX Modules · Make sure that modules are correctly connected to the DC power source.

  • Page 22: Water Recovery

    ® IONPURE VNX CEDI Modules 5.4. Water Recovery · Percent water recovery = (100)(product flow)/(product flow + reject flow) · The maximum allowable VNX water recovery depends on feed water concentrations of silica and hardness, as shown in Table 5-2, below.

  • Page 23: Maintenance And Troubleshooting

    ® IONPURE VNX CEDI Modules 6. MAINTENANCE AND TROUBLESHOOTING The following section details the maintenance procedures for the VNX module. It contains general maintenance information and specific maintenance information for cleaning and sanitizing the modules. The cleaning chemical volumes & flows detailed in this section are for a single VNX module.

  • Page 24: Cleaning And Sanitization Prompts

    ® IONPURE VNX CEDI Modules · Sodium percarbonate – for removing organic foulants, reducing pressure drop, and sanitizing. · Peracetic acid – used for routine sanitizing to discourage the growth of bacterial films. · Aggressive multi-agent cleaning – this sequential cleaning protocol of caustic, percarbonate, brine and acid is recommended for heavily biofouled systems.
  • Page 25 ® IONPURE VNX CEDI Modules Figure 6-1: Typical CEDI CIP System Table 6-1a VNX CEDI Cleaning Flow Rates (per module) 55EP-2 55EX-2 55E-2 55HH-2 Product 27.5-82.5 27.5-82.5 27.5-82.5 27.5-82.5 6.3-18.8 6.3-18.8 6.3-18.8 6.3-18.8 Reject 10-30 5-15 3.3-10 10-30 2.3-6.8 1.2-3.4 0.8-2.3...

  • Page 26: Chemical Cleaning And Sanitization Precautions

    ® IONPURE VNX CEDI Modules Table 6-1b VNX CEDI Cleaning Flow Rates (per module) continued MINI 28EP-2 CDIT15 CDIT30 Product 33-100 26.4-79.2 13.8-41.3 7.5-22.5 15-45 7.5-22.7 6.0-18.0 3.1-9.4 1.7-5.1 3.4-10.2 Reject 12-35 9-28 5-14 7.5-22.5 15-45 2.6-7.9 2.1-6.3 1.1-3.3 1.7-5.1 3.4-10.2...
  • Page 27 Section 6.4, Table 6-1. · Recirculate the solution through the module for 30-60 minutes. Longer contact time may be desirable in some instances. See Ionpure Service Bulletin 2007-02b. Contact Ionpure Technical Support if you have further questions. 6.6.3 Return to service ·...

  • Page 28: Cleaning Solution Recipes

    ® IONPURE VNX CEDI Modules 6.7. Cleaning Solution Recipes Use appropriate PPE when using any of below chemicals for cleaning CEDI modules. Consult SDS from chemical supplier. Table 6-2 Hydrochloric acid, 2% VNX28 VNX55 VNX MAX CDIT15 CDIT30 VNX MINI...
  • Page 29 ® IONPURE VNX CEDI Modules Table 6-5 Sodium chloride, 5% VNX28 VNX55 VNX MAX CDIT15 CDIT30 VNX MINI 50 gal 100 gal 120 gal 45 gal 90 gal Water (189 L) (379 L) (454 L) (170 L) (341 L) 22 lb...
  • Page 30 ® IONPURE VNX CEDI Modules Table 6-8 Sodium hydroxide (2%) VNX28 VNX55 VNX MAX CDIT15 CDIT30 VNX MINI 50 gal 100 gal 120 gal 45 gal 90 gal Water (189 L) (379 L) (454 L) (170 L) (341 L) NaOH 8.8 lb...

  • Page 31: Troubleshooting

    Table 7-1: Troubleshooting Procedures for VNX modules PROBLEM CAUSE SOLUTION Module has loosened during shipment, movement, or Contact Ionpure Technical support Module leaks operation Module is faulty Contact your Local Service Provider Plumbing leaks Module adapters are loose...
  • Page 32 ® IONPURE VNX CEDI Modules TYPICAL VNX MODULE LOG SHEET Site Name: _____________________ Module Serial Number: ___________________ DATE TIME OF DAY Feed water temperature °C Feed water total hardness as CaCO Feed water total chlorine as Cl ppm as Feed water carbon dioxide Feed water conductivity µS/cm...
  • Page 33 ® IONPURE VNX CEDI Modules Troubleshooting Flow Chart - Increase in DC Volts Page 1 of 1 START HERE Are any DC wires Tighten connections loose? Feed Increase in DC voltage water temp is normal drop? Acid clean, Excess reduce CEDI feed...
  • Page 34 ® IONPURE VNX CEDI Modules Troubleshooting Flow Chart - Low CEDI Product or Reject Flow Page 1 of 1 START HERE Product Recalibrate or replace flowmeter flow meter incorrect? Clean RO or increase RO pressure making too little or increase RO feed...
  • Page 35 ® IONPURE VNX CEDI Modules Troubleshooting Flow Chart - Low CEDI Product Water Quality Page 1 of 3 START HERE CEDI Check IP-Pro: Adjust DC amperage feed TDS is desired quality Up for higher TDS changed? possible? Down for lower TDS...
  • Page 36 ® IONPURE VNX CEDI Modules Troubleshooting Flow Chart - Low CEDI Product Water Quality Page 2 of 3 Continued from previous flowchart Check IP-Pro: Increase Product flow is desired quality DC amperage increased? possible? Reduce flow or reduce feed conductivity equivalent...
  • Page 37 Troubleshooting Flow Chart - Low CEDI Product Water Quality Page 3 of 3 Continued from Previous Flowchart Clean CEDI with product flow NaCl/NaOH and decreased? Contact Ionpure Technical Removed particulates Support Did cleaning and/or biofilm: www.ionpure.com restore flow? review process design &...

  • Page 38: Shutdown And Storage

    · Rebuilding of VNX modules is not practical, and therefore not offered. Certain types of repairs might be possible, but must be performed at an authorized Ionpure repair facility, and can’t be done on-site. Contact your OEM or local Ionpure representative for options.

  • Page 39: Appendix A: Vnx Module Specifications

    20 (50.8) 20 (50.8) 66.14 (168) 620 (281) 835 (379) 84 (213.3) 635 (288) IP-VNX-MAX 20 (50.8) 20 (50.8) 850 (385) IP-VNX28EP-2 20 (50.8) 20 (50.8) 44 (111.8) 325 (147) 435 (197) IP-VNX55EP-2 20 (50.8) 20 (50.8) 84 (213.3) 635 (288)
  • Page 40 99.8 99.5 99.5 * Above values are typical but may vary depending on site-specific operating conditions. Actual performance can be evaluated using IP- PRO projection software available from Ionpure. Contact Ionpure if specific performance guarantees are required. Page 40 IP-MAN-VNX-1019-EN.pdf...
  • Page 41 IP-VNX-MAX opposite ends. opposite ends. In on top, out on bottom. In on top, out on bottom. IP-VNX28EP-2 Inlet and outlet can be on same end or Inlet and outlet can be on same end or opposite ends. opposite ends.

  • Page 42: Appendix B: Vnx55 Layout & Elevation Drawing

    ® IONPURE VNX CEDI Modules APPENDIX B: VNX55 LAYOUT & ELEVATION DRAWING B-1 Page 42 IP-MAN-VNX-1019-EN.pdf...

  • Page 43: Appendix B: Vnx Electrical Connections Drawing

    ® IONPURE VNX CEDI Modules APPENDIX B: VNX ELECTRICAL CONNECTIONS DRAWING B-2 Page 43 IP-MAN-VNX-1019-EN.pdf...

  • Page 44: Appendix C: Vnx Port Pvc Adapter Drawing

    ® IONPURE VNX CEDI Modules APPENDIX C: VNX PORT PVC ADAPTER DRAWING C-1 Page 44 IP-MAN-VNX-1019-EN.pdf...

  • Page 45: Appendix C: Vnx Port Pvc Plug Drawing

    ® IONPURE VNX CEDI Modules APPENDIX C: VNX PORT PVC PLUG DRAWING C-2 Page 45 IP-MAN-VNX-1019-EN.pdf...

  • Page 46: Appendix C: Vnx Port Pp Adapter Drawing

    ® IONPURE VNX CEDI Modules APPENDIX C: VNX PORT PP ADAPTER DRAWING C-3 Page 46 IP-MAN-VNX-1019-EN.pdf...

  • Page 47: Appendix C: Vnx Port Pp Plug Drawing

    ® IONPURE VNX CEDI Modules APPENDIX C: VNX PORT PP PLUG DRAWING C-4 Page 47 IP-MAN-VNX-1019-EN.pdf...

This manual is also suitable for:

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