Watts Lync WQ-RS Installation, Operation And Maintenance Manual
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Watts Lync WQ-RS Installation, Operation And Maintenance Manual

Watts Lync WQ-RS Installation, Operation And Maintenance Manual

Commercial reverse osmosis systems
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Installation, Operation and
Maintenance Manual
Lync WQ-RS

Commercial Reverse Osmosis Systems

Disclaimer
The information contained in this manual is subject to change without notice
from Lync, a division of Watts Water Technologies, Inc. Lync makes no
warranty of any kind with respect to this material, including, but not limited to,
implied warranties of merchantability and fitness for a particular application.
Lync is not liable for errors appearing in this manual, nor for incidental or
consequential damages occurring in connection with the furnishing,
performance, or use of these materials.
L- OMM-005_A •
2/23/2022
Lync • 425 W Everman Pkway, St. 101 • Fort Worth, TX 76134
Technical Support • (800) 433-5654 (ext. 3) • Mon-Fri, 8 am - 5 pm CST
Engineered Solutions
USA: T: (817) 335-9531
© 2021 LYNC

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Summary of Contents for Watts Lync WQ-RS

  • Page 1: Commercial Reverse Osmosis Systems

    Disclaimer The information contained in this manual is subject to change without notice from Lync, a division of Watts Water Technologies, Inc. Lync makes no warranty of any kind with respect to this material, including, but not limited to, implied warranties of merchantability and fitness for a particular application.

  • Page 2: Table Of Contents

    Lync WQ-RS Table of Contents TABLE OF CONTENTS Commercial Reverse Osmosis Systems ....................1 INTRODUCTION ........................... 3 1.1. Specifications ........................... 4 1.2. RO Overview ..........................4 1.3. Pretreatment ..........................5 CONTROLS, INDICATORS, AND COMPONENTS ................7 2.1. System Components ......................... 7 2.2.

  • Page 3: Introduction

    Lync WQ-RS SECTION 1: INTRODUCTION 1. INTRODUCTION WARNING! Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system. • Pretreatment must be sufficient to eliminate chemicals that would attack the membrane materials.

  • Page 4: Specifications

    Lync WQ-RS SECTION 1: INTRODUCTION 1.1. Specifications WQRS-005-R WQ-RS-010-R WQ-RS-015-R Productivity (gallons per day / gallons per 3600 / 2.5 7200 / 5.0 10800 / 7.5 minute) Quality (typical membrane percent 98 % rejection) % Recovery (adjustable) 25 - 75 %...

  • Page 5: Pretreatment

    Lync WQ-RS SECTION 1: INTRODUCTION Feed Water Product Water Reject Water Figure 1-1 RO Membrane 1.3. Pretreatment The RO feed water must be pretreated in order to prevent membrane damage and/or fouling. Table below shows the feed water chemistry requirements.
  • Page 6 Lync WQ-RS SECTION 1: INTRODUCTION Prefilter Cartridge - Used to remove smaller suspended solids and trap any particles that may be generated by the other pretreatment. The cartridge(s) should be replaced when the pressure drop across the housing increases 5 - 10 psig over the clean cartridge pressure drop. The effect of suspended solids is measured by the silt density index (SDI) test.

  • Page 7: Controls, Indicators, And Components

    Lync WQ-RS SECTION 2: CONTROLS, INDICATORS AND COMPONENTS 2. CONTROLS, INDICATORS, AND COMPONENTS 2.1. System Components Figure 2-1 General System Component Identification Controller - Controls the operation of the system and displays the product water quality. Reject Control Valve - Controls the amount of reject flow.

  • Page 8: Controller Drawing

    Lync WQ-RS SECTION 2: CONTROLS, INDICATORS AND COMPONENTS 2.2. Controller Drawing Figure 2-2 Controller 2/23/2022 Technical Support • (800) 433-5654 • Mon-Fri, 8 am - 5 pm EST L- OMM-005_A • of 34...
  • Page 9 Lync WQ-RS SECTION 2: CONTROLS, INDICATORS AND COMPONENTS Figure 2-3 Controller (Continued) RO PUMP 2/23/2022 Technical Support • (800) 433-5654 • Mon-Fri, 8 am - 5 pm EST L- OMM-005_A • of 34...

  • Page 10: Operation

    Lync WQ-RS SECTION 3: OPERATION 3. OPERATION 3.1. Installation The water supply should be sufficient to provide a minimum of 20 psig pressure at the design feed flow. Proper pretreatment must be determined and installed prior to the RO system.

  • Page 11: Startup

    Lync WQ-RS SECTION 3: OPERATION and location must be determined by the installer. Check the pump motor nameplate for the amperage draw at various voltages to determine the wire size required. Do not apply power to the RO unit at this time.
  • Page 12 Lync WQ-RS SECTION 3: OPERATION NOTES: See the controller section of this manual for more installation and operation information. It is very important to vent the mechanical seal during startup. Failure to vent the seal may result in premature seal failure.

  • Page 13: Reverse Osmosis Controller Operations And Maintenance

    Lync WQ-RS SECTION 3: OPERATION 3.5. Reverse Osmosis Controller Operations and Maintenance The controller for this system is the ROC-4 controller. This is a microprocessor-based controller with a product water conductivity meter. A separate manual for this controller begins on the next page.
  • Page 14 Lync WQ-RS SECTION 3: OPERATION POWER INPUT PUMP (Contactor) FLUSH VALVE INLET VALVE Close on Fault fgdafdfg bd Alternate Wiring, Single Tank Level Switch DIVERT/ALARM Divert Valve/Alarm contacts can be powered or dry-contact - iControls TB-24V3 Schematic, Rev:NC Dec 2015 selectable with switch S1.
  • Page 15 Lync WQ-RS SECTION 3: OPERATION Display Keypad 4 line, 20 character) Provides feedback on System On/Off the system status Up Arrow Down Arrow Manual Run, Manual Flush CPU Board Terminal Board Conductivity Programing Probe Connections Transformer Figure 3-3 Controller Overview 2/23/2022 Technical Support •...
  • Page 16 Lync WQ-RS SECTION 3: OPERATION Pictorial Schematic of a Typical ROC-4 System Figure 3-4 Wiring Diagram 2/23/2022 Technical Support • (800) 433-5654 • Mon-Fri, 8 am - 5 pm EST L- OMM-005_A • of 34...
  • Page 17 Lync WQ-RS SECTION 3: OPERATION Typical Configuration Detailed View Main interface port. Connects via ribbon cable to Terminal Board. Bootload Switch Used for field updates of CPU-4 firmware Programming Port Standard USB printer cable used for programming. See Appendix B for more about...
  • Page 18 Lync WQ-RS SECTION 3: OPERATION TB24V3 Figure 3-6 Controller Detail: Terminal Board, TB-3 For schematic, see Figure 2-2. 2/23/2022 Technical Support • (800) 433-5654 • Mon-Fri, 8 am - 5 pm EST L- OMM-005_A • of 34...
  • Page 19 Lync WQ-RS SECTION 3: OPERATION Install the Conductivity Probe in the “Run” of a Tee or equivalent location. Orient the probe so that air cannot become trapped in the area near the probe. Flow Conductivity Probe Flow Figure 3-7 Conductivity Probe Installation...
  • Page 20 Lync WQ-RS SECTION 3: OPERATION Control Box Installation 1. Drill the enclosure as needed and install liquid-tight fittings for the wiring. 2. Mount the enclosure in the desired location on the RO system. 3. Bring the wires from the peripheral devices into the enclosure and connect them to the appropriate terminals.
  • Page 21 Lync WQ-RS SECTION 3: OPERATION TABLE 2. CONTROLLER PROGRAMMING: ROC-4 PROGRAM SELECTIONS The controller has 4 separate user-selectable sets of settings for configuring the RO. The factory default settings are shown below. The settings are identical except for variations in the flush behavior.
  • Page 22 Lync WQ-RS SECTION 3: OPERATION Figure 3-10 Controller Programming: Menu Navigation 2/23/2022 Technical Support • (800) 433-5654 • Mon-Fri, 8 am - 5 pm EST L- OMM-005_A • of 34...
  • Page 23 Lync WQ-RS SECTION 3: OPERATION APPENDIX A. CONTROLLER PROGRAMMING: PARAMETERS EXPLAINED Parameter Value Range Example Input Switch Beha VIORS Tank Level Switch de-Bounce Seconds This specifies the time that the tank switch must be closed or open before the controller accepts it as a valid condition.
  • Page 24 Lync WQ-RS SECTION 3: OPERATION Controller Fault Condition Displays Below are examples and explanations of the displays which accompany the fault conditions possible in the ROC-4. Fault conditions always indicated a problem of some sort which requires corrective action. The displays provide sufficient information to recognize the source of the fault and the required corrective action.
  • Page 25 Lync WQ-RS SECTION 3: OPERATION WQ-RS Operation and Maintenance Log PUMP FEED PRE FILTER PRE FILTER DATE PRODUCT REJECT REJECT FEED TDS PRODUCT FEED FEED REMARKS DISCHARGE WATER INLET OUTLET PRESSURE TDS PPM WATER WATER PRESSURE CHLORINE PRESSURE PRESSURE TEMP...
  • Page 26 Lync WQ-RS SECTION 3: OPERATION Troubleshooting RO TROUBLE SHOOTING GUIDE SYMPTOMS Salt Passage Permeate Pressure Location Possible Causes Verification Corrective Action Flow Drop Normal to Decreased Normal to Predominantly Metal oxide Analysis of metal Improved pretreatment increased increased first stage ions in cleaning to remove metals.
  • Page 27 Lync WQ-RS SECTION 3: OPERATION Increased Increased Decreased Most severe in Abrasion of Microscopic solids Improved pretreatment. the first stage membrane by analysis of feed. Check all filters for media crystalline Destructive leakage. material element test. Normal to O-ring leaks, Probe test.
  • Page 28 Lync WQ-RS SECTION 3: OPERATION MOTOR TROUBLE SHOOTING CHART TROUBLE CAUSE WHAT TO DO Motor fails to start Blown fuses Replace fuses with proper type and rating. Overload trips Check and rest overload in starter. Improper power supply Check to see that power supplied agrees with motor nameplate and load factor.
  • Page 29 Lync WQ-RS SECTION 3: OPERATION MOTOR TROUBLE SHOOTING CHART TROUBLE CAUSE WHAT TO DO Motor may have one phase open Check to make sure that all leads are well connected. Unbalanced terminal voltage Check for faulty leads, connections and transformers.
  • Page 30 Lync WQ-RS SECTION 3: OPERATION RO SYSTEM TROUBLE SHOOTING PROBLEM REMEDY General High Product Water TDS Membrane expanded. Replace membrane. Membrane attack by chlorine Carbon pre-filter may be exhausted. Replace with a new cartridge. Clogged pre-filter-creates pressure drop and Replace pre-filter cartridge.

  • Page 31: Replacement Part List

    Pump and Motor BVMI 3-21 5 HP, 3-Phase 68107195 Low-Pressure Switch, 4psi for package II Controller 7300444 Inlet Solenoid Valve, 1", 24 volt coil 7300390 Watts 4" x 40" RO Membranes 7300817 Package II Controller ROC-4 68110205 Conductivity Probe 68106950 Autoflush Solenoid Valve, 1/2", Brass, 24 volt coil...

  • Page 32: Membrane Replacement

    Lync WQ-RS SECTION 5: MEMBRANE REPLACEMENT 5. Membrane Replacement 1. Turn off the system and close the feed water shutoff valve. Disconnect the membrane feed hoses by loosening the brass fittings between the end of the hoses and the pressure vessel end caps.

  • Page 33: Appendix

    Lync WQ-RS SECTION 6: APPENDIX 6. Appendix The following tables are intended as a guide to determining the flow rates for the WQ-RS series RO systems. All flows are in gallons per minute (GPM). Nominal flows for systems with reject recycle and a feed water Silt Density Index less than 3.
  • Page 34 Lync WQ-RS Customer Service: Contact our Customer Care team to report a warranty problem or for technical assistance with your Lync system solution. Please have your product model number, serial number and all relevant information pertaining to your problem ready when calling.

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