Veolia ELGA CENTRA-MDS-US User manual

CENTRA-MDS/LDS/RDS - US
Operator Manual

ELGA CENTRA – MDS/LDS/RDS US Operator Manual
CENTRA – MDS/LDS/RDS US Version 01 – 08/14 Page i
Copyright Note
The information contained in this document is the property of VWS
(UK) Ltd. and is supplied without liability for errors or omissions.
No part of this document may be reproduced or used except as
authorized by contract or other written permission from VWS (UK)
Ltd. The copyright and all restrictions on reproduction and use
apply to all media in which this information may be placed.
VWS (UK) Ltd. pursue a policy of continual product improvement
and reserve the right to alter without notice the specification,
design, price or conditions of supply of any product or service.
ELGA LabWater is a trading name of VWS (UK) Ltd.
ELGA®is the global laboratory water brand name of Veolia Water.
ELGA®, PURELAB®, MEDICA® and CENTRA® are trademarks
of ELGA LabWater.
Minncare is a trademark of Minntech Corporation.
© VWS (UK) Ltd. 2014
All rights reserved.
Publication ref: MANU40548
Version 1 – 08/14

CENTRA – MDS/LDS/RDS US Operator Manual ELGA
Page ii CENTRA – MDS/LDS/RDS US Version 01– 08/14
TABLE OF CONTENTS
1. INTRODUCTION...................................................................1
1.1 Product Range ............................................................1
1.2 Use of this Manual.......................................................1
1.3 Customer Support.......................................................1
2. HEALTH AND SAFETY NOTES ..........................................2
2.1 Electricity.....................................................................2
2.2 Pressure......................................................................2
2.3 Sanitization Chemicals................................................2
2.4 Control of Substances Hazardous to Health (COSHH)2
3. PRODUCT AND PROCESS DESCRIPTION........................3
3.1 Product Description.....................................................3
3.2 Process Description ....................................................4
3.3 Flow Diagrams ............................................................7
3.4 Technical Specification................................................8
4. INSTALLATION INSTRUCTIONS......................................11
4.1 Unpacking the CENTRA ...........................................11
4.2 Positioning the CENTRA...........................................11
4.3 Connecting the CENTRA ..........................................14
5. CONTROLS ........................................................................20
5.1 PASSkeys .................................................................21
5.2 System Preferences..................................................21
5.3 Setting Up Replacement Timers / Reminders...........29
6. COMMISSIONING...............................................................31
6.1 Initial Start Up............................................................31
7. OPERATION .......................................................................34
7.1 Night service/Operational day...................................34
7.2 Continuous Recirculation (24/7)................................34
8. MONITORING .....................................................................35
8.1 Fill and recirculation ..................................................35
8.2 Recirculation..............................................................35
8.3 Consumable dates (RDS) .........................................35
9. MAINTENANCE..................................................................36
9.1 Replacing the Composite Vent Filter / Air Filter........36
9.2 Replacing the bacterial and particulate filter LC160
(RDS) FILT 50105 (RDS/HFV/HFR).........................37
9.3 Replacement of UV lamp LC158...............................38
9.4 Installation / replacement of ion-exchange /
purification media cylinders (optional accessory) (RDS
only)...........................................................................39
10. SANITIZATION PROCEDURES.........................................40
10.1 Automatic recirculation sanitization (RDS)................40
10.2 Automatic recirculation sanitization procedure (RDS)40

ELGA CENTRA – MDS/LDS/RDS US Operator Manual
CENTRA – MDS/LDS/RDS US Version 01 – 08/14 Page iii
10.3 Manual recirculation sanitization (MDS and LDS) ....41
10.4 Manual recirculation sanitization procedure (MDS and
LDS) ..........................................................................42
11. TROUBLE SHOOTING.......................................................43
12. CONSUMABLES AND ACCESSORIES ............................45
13. KEY TO CONTROL PANEL...............................................46
13.1 Icons..........................................................................46
13.2 Alarm Conditions.......................................................47
13.3 Replacement Timers.................................................48
14. WARRANTY/CONDITIONS OF SALE ...............................49
15. USEFUL CONTACT DETAILS...........................................51

ELGA CENTRA – MDS/LDS/RDS US Operator Manual
CENTRA – MDS/LDS/RDS US Version 01 – 08/14 Page 1
1. INTRODUCTION
1.1 Product Range
This operator manual has been prepared for the product models:
CENTRA - MDS US 115V ac 60Hz
CENTRA - MDS US 230V ac 50Hz
CENTRA - MDS HF US 230V ac 50Hz
CENTRA - LDS US 115V ac 60Hz
CENTRA - LDS US 230V ac 50Hz
CENTRA - LDS HFV US 230V ac 50/60Hz
CENTRA - LDS HFR US 230V ac 50Hz
CENTRA - RDS US 115V ac 60Hz
CENTRA - RDS US 230V ac 50Hz
CENTRA - RDS HFV US 230V ac 50/60Hz
CENTRA - RDS HFR US 230V ac 50/60Hz
Unless stated otherwise the products will be referred to in the
following terms:
CENTRA - MDS US
CENTRA - LDS US
CENTRA - RDS US
1.2 Use of this Manual
This manual contains full details on installation, commissioning and
operation of the CENTRA unit. If the instructions in this handbook
are not followed then the performance of this product and/or the
safety of the user may be compromised.
1.3 Customer Support
Service support and consumable items are available from your
local supplier or distributor. Refer to customer service contact
details shown at the end of this publication.
CENTRA – MDS US
CENTRA - LDS/RDS US

CENTRA – MDS/LDS/RDS US Operator Manual ELGA
Page 2CENTRA – MDS/LDS/RDS US Version 01 – 08/14
2. HEALTH AND SAFETY NOTES
CENTRA products have been designed to be safe, however, it is
important that personnel working on these units understand any
potential dangers. All safety information detailed in this handbook
is highlighted as WARNING and CAUTION instructions. These are
used as follows:
WARNING! WARNINGS ARE GIVEN WHERE FAILING TO
OBSERVE THE INSTRUCTION COULD
RESULT IN INJURY OR DEATH TO PERSONS.
CAUTION!
Cautions are given where failure to observe
the instruction could resul
t in damage to the
equipment, associated equipment and
processes.
2.1 Electricity
It is essential that the electrical supply to the CENTRA is isolated
before any items are changed or maintenance work performed.
The external isolator providing power to the unit should be
positioned so that it is easily accessible by all users.
WARNING! THIS APPLIANCE MUST BE EARTHED.
2.2 Pressure
The main water supply should be isolated and residual pressure
released prior to removal of any consumables or carrying out work
on the unit.
Switching off the electrical supply will isolate the source of
pressure and residual pressure in the unit will automatically be
relieved to drain within a few seconds.
2.3 Sanitization Chemicals
During the sanitization cycle Minncare Cold Sterilant is used and
relevant safety guidance is included in this handbook. Please refer
to the manufacturer for material safety data sheets.
Minncare Cold Sterilant is EPA registered as a sterilant, high level
disinfectant, and sanitizer.
Spent Minncare Cold Sterilant is acidic and requires normal
neutralization as specified by your local state and local regulations.
1% of Minncare Cold Sterilant has a pH of 3.5.
2.4 Control of Substances Hazardous to Health
(COSHH)
Material safety data sheets covering the various replaceable
components are available upon request. Contact your local ELGA
LabWater distributor.

ELGA CENTRA – MDS/LDS/RDS US Operator Manual
CENTRA – MDS/LDS/RDS US Version 01 – 08/14 Page 3
3. PRODUCT AND PROCESS
DESCRIPTION
3.1 Product Description
The CENTRA - MDS/LDS/RDS US range of water purification
units has been specifically designed to distribute and maintain
purified water for laboratory, medical and industrial applications.
The supply of purified water is obtained from either an external
source or internal technologies.
Purified water may be distributed around the installation under
pressure to single or multiple points of use.
A range of accessories is available to complement the unit (see
Section 12. - Consumables and Accessories, for detail).
CENTRA - MDS US CENTRA - LDS/RDS US
CENTRA – LDS/RDS US (HFV/HFR)
Control Panel
Control Panel
PASSkey
reader
PASSkey
reader
Door
Door

CENTRA – MDS/LDS/RDS US Operator Manual ELGA
Page 4CENTRA – MDS/LDS/RDS US Version 01 – 08/14
3.2 Process Description
CENTRA – LDS US
•Feed water enters through a control valve (V1), which in
combination with the level sensor (LS1) controls the
volume of water in the 350 liter (92USG) reservoir.
•ELGA systems providing the feed water will be controlled
by the CENTRA – LDS US to maintain a sufficient level
of water within the reservoir.
•The pump distributes the water around the installation at
pressure (6 bar maximum) controlled manually via the
pressure-regulating valve (PSV1) and monitored with a
pressure gauge (PG1).
•Products fitted with a variable speed recirculation pump
(P2) use feedback from a pressure transducer (PT1) to
regulate the pump output to maintain a constant outlet
pressure (typically 4 bar). This also reduces the outlet
flow when water is not being taken from the recirculation
loop.
•Flow around the system is monitored electronically using
a flow sensor (FS1) and shown in selectable units of
measurement on the display.
•Air is drawn into the reservoir when water is used. To
maintain water purity it is necessary to filter the air. Air-
borne particles and bacteria are removed by an air-filter.
Alternatively an improved level of water purity can be
maintained within the recirculation system using a
composite vent filter, which removes air-borne
contaminants such as volatile organic compounds and
carbon dioxide.
CENTRA – RDS US
•Feed water enters through a control valve (V1), which in
combination with the level sensor (LS1) controls the
volume of water in the 350 liter (92USG) reservoir.
•The feed water passes through a:
•Water quality sensor (QS1), which measures the
conductivity of the water.
•Temperature sensor (TS1).
•ELGA systems providing the purified water will be
controlled and monitored by the CENTRA – RDS US to
maintain a sufficient level of water within the reservoir.
•The pump (P1) distributes the pre-purified water around
the installation at pressure (6 bar maximum) controlled
via the pressure-regulating valve (PSV1) and monitored
with a pressure sensor (PS1).
•Connections are available to incorporate a range of
cylinders containing water purification media, which
remove impurities and maintain water quality around the
system. The media can be selected to meet specific
requirements. Typically activated carbon and ion-
exchange media are used.