Veolia ELGA CENTRA-MDS-US User Manual (English)

Questions and Answers:

J
John SmithAug 20, 2025
What to do if there is an alarm and flashing quality value on Veolia ELGA CENTRA-MDS-US Water Filtration Systems?
- Y
  Yvette MoonAug 20, 2025
  If you observe an alarm and flashing quality value on your Veolia Water Filtration System, first mute the alarm. Verify that the alarm set value is correct. If your system has an ion-exchange/purification media cylinder, ensure it is properly in line and not isolated from the distribution loop. If necessary, replace the ion-exchange cylinder. If the problem continues, further assistance may be needed.
C
Charles GarciaAug 22, 2025
What does '=== M?.cm (RDS/RDS(HF))' mean on Veolia ELGA CENTRA-MDS-US?
- P
  Philip FrenchAug 22, 2025
  If your Veolia Water Filtration System displays '=== M?.cm (RDS/RDS(HF))', it indicates that a feature is out of the measurement range. Allow the unit to recirculate. If the purification technology in the recirculation loop is insufficient, verify the design with Technical Support. Also, check that the quality sensor is connected. If fitted, replace the ion-exchange/purification media cylinder. If the problem persists, further assistance may be needed.
C
Charles MonroeAug 25, 2025
What to do if there is a high water temperature alarm on Veolia ELGA CENTRA-MDS-US?
- Q
  qmooreAug 25, 2025
  If you receive a high water temperature alarm on your Veolia Water Filtration System, first check that the correct alarm point is set. Next, check if the feedwater temperature has risen suddenly. Dispense some water from the distribution loop to allow cold water to be drawn into the unit, and then check the feedwater temperature again. If the problem continues, further assistance may be needed.
T
toninortonAug 26, 2025
How to clear the 0.2µm filter change reminder alarm on Veolia Water Filtration Systems?
- T
  Tracy ThomasAug 26, 2025
  If your Veolia Water Filtration System displays a 0.2µm filter change reminder alarm, mute the alarm and replace the filter. If the problem persists, further assistance may be needed.
N
nicolezimmermanAug 28, 2025
How to clear the UV change reminder on Veolia Water Filtration Systems?
- V
  vparksAug 28, 2025
  If your Veolia Water Filtration System displays a UV change reminder, mute the alarm and replace the UV lamp. If the problem persists, further assistance may be needed.
W
waterscatherineAug 30, 2025
How to clear the sanitization reminder alarm on Veolia ELGA CENTRA-MDS-US?
- R
  robertrichardsAug 30, 2025
  If your Veolia Water Filtration System displays a sanitization reminder alarm, mute the alarm and initiate the Sanitization Procedure. If the problem persists, further assistance may be needed.
K
kristaharmonSep 1, 2025
What to do if the reservoir low level alarm is on for Veolia ELGA CENTRA-MDS-US Water Filtration Systems?
- M
  Melissa JohnsonSep 1, 2025
  If your Veolia Water Filtration System shows a reservoir low level alarm, check that the feedwater supply is connected and ensure the demand matches the water production. If the problem persists, further assistance may be needed.
D
dgutierrezSep 3, 2025
What to do if the reservoir level disconnect fault alarm is on for Veolia ELGA CENTRA-MDS-US Water Filtration Systems?
- J
  Joshua ZhangSep 3, 2025
  If your Veolia Water Filtration System displays a reservoir level disconnect fault alarm, mute the alarm and ensure the control lead from the reservoir is properly connected. If the problem persists, further assistance may be needed.
Y
Yesenia McintoshSep 5, 2025
Why is there reduced flow from the distribution loop in Veolia ELGA CENTRA-MDS-US Water Filtration Systems?
- G
  garciateresaSep 5, 2025
  If your Veolia Water Filtration System experiences reduced flow from the distribution loop, check the pressure drop across the 0.2µm filter. Replace the filter if the pressure drop is higher than 0.5bar. If this doesn't solve the issue, the pump may be worn.
G
greenmeganSep 6, 2025
How to reduce the noise level of Veolia Water Filtration Systems?
- S
  Shannon SandersSep 7, 2025
  If the noise level of your Veolia Water Filtration System is greater than specified, open the front door and secure the pipework to stop vibration. Also, check that air is not being drawn into the recirculation loop. If the problem continues, further assistance may be needed.

Veolia ELGA CENTRA-MDS-US Specifications

General

Type	Water Purification System
TOC	<5 ppb
Power Supply	230 V, 50/60 Hz
Operating Temperature	5-35°C
Description	The ELGA CENTRA-MDS-US is a water purification system designed for laboratory and industrial applications.
Application	Laboratory
Technology	Reverse Osmosis (RO), Electrodeionization (EDI)
Output Water Quality	Type I and Type II
Resistivity	18.2 MΩ.cm at 25°C
Bacteria	<1 CFU/ml
Particles	<1 particle/ml (>0.2 µm)
Feed Water Requirements	Potable tap water
Storage Capacity	Up to 50 liters

Summary

Introduction

Product Range

Lists the different CENTRA models and their specifications.

Use of this Manual

Explains the manual's purpose and the importance of following instructions.

Customer Support

Provides information on obtaining service support and consumable items.

Health and Safety Notes

Electricity

Details electrical safety precautions and earthing requirements for the unit.

Pressure

Outlines safety procedures related to water pressure isolation and release.

Sanitization Chemicals

Provides guidance on the use of Minncare Cold Sterilant and its properties.

Control of Substances Hazardous to Health (COSHH)

Informs about the availability of material safety data sheets for components.

Product and Process Description

Product Description

Describes the CENTRA units and their application in water purification.

Process Description

Details the operational flow and components for different CENTRA models.

Flow Diagrams

Illustrates the hydraulic and process flow for CENTRA units.

Technical Specification

Provides detailed technical data, dimensions, and specifications for the units.

Installation Instructions

Unpacking the CENTRA

Lists the items supplied with the CENTRA unit and unpacking steps.

Positioning the CENTRA

Provides guidelines for safely positioning the unit in its operating environment.

Connecting the CENTRA

Details the hydraulic connections required for the CENTRA unit.

Controls

PASSkeys

Explains the different types of PASSkeys and their usage.

System Preferences

Guides on setting up system preferences using ELGA PASSkeys.

Setting Up Replacement Timers / Reminders

Guides on setting up reminders for replacing filters, lamps, and sanitization.

Commissioning

Initial Start Up

Details the initial steps for starting up the CENTRA unit.

Operation

Night service/Operational day

Explains how to program the unit for specific operating days and times.

Continuous Recirculation (24/7)

Describes the 24/7 operation mode and its recommendations.

Monitoring

Fill and recirculation

Details parameters displayed during fill and recirculation modes.

Recirculation

Lists parameters monitored during recirculation.

Consumable dates (RDS)

Explains how to view consumable dates and reminder periods.

Maintenance

Replacing the Composite Vent Filter / Air Filter

Provides steps for replacing the CVF filter.

Replacing the bacterial and particulate filter LC160 (RDS) FILT 50105 (RDS/HFV/HFR)

Details the replacement procedure for bacterial and particulate filters.

Replacement of UV lamp LC158

Outlines the steps for replacing the UV lamp.

Installation / replacement of ion-exchange / purification media cylinders (optional accessory) (RDS only)

Explains the installation and replacement of ion-exchange cylinders.

Sanitization Procedures

Automatic recirculation sanitization (RDS)

Steps to initiate automatic recirculation sanitization.

Automatic recirculation sanitization procedure (RDS)

Detailed procedure for automatic recirculation sanitization.

Manual recirculation sanitization (MDS and LDS)

Steps to initiate manual recirculation sanitization for MDS and LDS.

Manual recirculation sanitization procedure (MDS and LDS)

Detailed procedure for manual recirculation sanitization.

Trouble Shooting

Display, Quality, and Temperature Issues

Troubleshoots display errors, quality alarms, and temperature-related alarms.

Operational and Component Faults

Addresses filter/UV/sanitization reminders, reservoir issues, flow, noise, PASSkey, and unit operation problems.

Consumables and Accessories

Consumables

Lists consumables, their part numbers, unit types, and service life.

Accessories

Lists available accessories, their part numbers, and descriptions.

Key to Control Panel

Icons

Explains the meaning of various icons displayed on the control panel.

Alarm Conditions

Details alarm screens, faults, and their possible causes.

Replacement Timers

Lists screens related to replacing consumables and their reference pages.

Warranty/Conditions of Sale

General Limited Warranty

Outlines the limited warranty terms for manufactured products.

Water System Limited Warranty

Details the warranty for water systems, excluding membranes and packs.

Useful Contact Details

ELGA LabWater Contact Information

Provides contact details for ELGA LabWater support and service.

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