Veolia ELGA MEDICA-D 7 MKII US User manual

MEDICA-D 7/15 - US
Operator Manual

ELGA MEDICA-D 7/15 US Operator Manual
MEDICA-D 7/15 US MANU40550 Version 2 –05/17 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.
EfferSan™ is a trademark of Activon Inc.
© VWS (UK) Ltd. 2014
All rights reserved.
Publication ref: MANU40550
Version 2 –05/17

MEDICA-D 7/15 US Operator Manual ELGA
Page ii MEDICA-D 7/15 US MANU40550 Version 2 –05/17
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 Ultra-Violet Light...................................................2
2.4 Sanitization Chemicals.........................................2
2.4.1 Liquid sanitization.................................................2
2.4.2 Tablet sanitization ................................................3
2.5 Control of Substances Hazardous to Health
(COSHH)..............................................................3
3. PRODUCT AND PROCESS DESCRIPTION.................4
3.1 Product Description..............................................4
3.2 Process Description .............................................5
3.3 Technical Specifications.......................................7
4. CONTROLS................................................................11
5. INSTALLATION INSTRUCTIONS...............................12
5.1 Unpacking the MEDICA-D 7/15 US....................12
5.2 Positioning the MEDICA-D 7/15 US ...................12
5.3 Connecting Up the MEDICA-D 7/15 US .............14
5.4 Initial Controller Set Up ......................................16
5.5 Setting Up Display and Replacement Timers .....18
5.6 Initial Start Up.....................................................20
6. OPERATION...............................................................22
6.1 Alarm Conditions................................................22
7. MAINTENANCE..........................................................24
7.1 Replacing the LC140 Pre-treatment Cartridge....25
7.2 Replacing LC141 Ion-Exchange Cartridge Pack 26
7.3 Replacing LC105 Ultraviolet lamp ......................28
7.4 Replacing the LC125 0.2µm Capsule Filter........29
7.5 Cleaning the Inlet Strainer..................................30
7.6 Cleaning the Recirculation Strainer....................31
7.7 Replacement of LC143 Reverse Osmosis
Cartridge(s)........................................................31
7.8 Replacement of LC154 Degas Module...............31
8. SANITIZATION PROCEDURES..................................32
8.1 Liquid sainitization..............................................32
8.1.1 Sanitization of RO Modules................................32

ELGA MEDICA-D 7/15 US Operator Manual
MEDICA-D 7/15 US MANU40550 Version 2 –05/17 Page iii
8.1.2 Sanitization Procedure for the unit and docking
vessel/reservoir........................................................... 33
8.2 Tablet sanitization.............................................. 34
8.2.1 Standard Sanitization......................................... 34
8.2.2 Sanitization Procedure for the unit and docking
vessel/reservoir........................................................... 35
8.3 Emergency by-Pass........................................... 36
9. TROUBLE SHOOTING............................................... 38
10. CONSUMABLES AND ACCESSORIES..................... 39
11. KEY TO CONTROL PANEL....................................... 40
11.1 Icons.................................................................. 40
11.2 Alarm Conditions ............................................... 40
11.3 Replacement Timers.......................................... 40
11.4 Low Reservoir Level, Poor Water Quality and
Standby Screens ............................................... 41
12. WARRANTY/CONDITIONS OF SALE........................ 42
General Limited Warranty............................................. 42
Water System Limited Warranty .................................. 42
13. USEFUL CONTACT DETAILS ................................... 44

ELGA MEDICA-D 7/15 US Operator Manual
MEDICA-D 7/15 US MANU40550 Version 2 –05/17 Page 1
1. INTRODUCTION
1.1 Product Range
This Operator Manual has been prepared for the MEDICA-D 7/15 US
product models.
MEDICA-D 7 MKII US
MEDICA-D 7 BP MKII US (with boost pump)
MEDICA-D 15 MKII US
MEDICA-D 15 BP MKII US (with boost pump)
These models are preferably installed with a docking vessel (DV-25)
and this manual will describe that system. Where appropriate
reference will be made to differences when an alternative reservoir is
used.
1.2 Use of this Manual
This manual contains full details on installation, commissioning and
operation of the MEDICA-D 7/15 US unit. If this unit is used contrary to
the instructions in this handbook, then 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.
MEDICA-D 7/15 US

MEDICA-D 7/15 US Operator Manual ELGA
Page 2 MEDICA-D 7/15 US MANU40550 Version 2 –05/17
2. HEALTH AND SAFETY NOTES
MEDICA-D 7/15 US 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 result in
damage to the equipment, associated
equipment and processes.
2.1 Electricity
It is essential that the electrical supply to the MEDICA-D 7/15 US is
isolated before any items are changed or maintenance work
performed.
The ON/OFF switch is located at the left-hand side of the unit. The
mains power lead is located just behind the ON /OFF switch.
WARNING! THIS APPLIANCE MUST BE EARTHED.
2.2 Pressure
The main water supply pressure should be isolated and residual
pressure released prior to removal of any cartridges or carrying out
work on the unit.
2.3 Ultra-Violet Light
The MEDICA-D 7/15 US unit is fitted with an ultra-violet lamp. The UV
lamp is enclosed in a stainless steel chamber ensuring the operator
will not be exposed to UV light.
2.4 Sanitization Chemicals
2.4.1 Liquid sanitization.
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.
Fuse
ON/OFF
switch
Mains power lead
Mains power socket
Mains Power Supply
UV Lamp

ELGA MEDICA-D 7/15 US Operator Manual
MEDICA-D 7/15 US MANU40550 Version 2 –05/17 Page 3
2.4.2 Tablet sanitization
During the sanitization cycle ONE EfferSan™ multi-purpose
disinfecting tablet is used and relevant safety information is included in
this handbook. Please refer to the manufacturer for material safety
data sheets.
2.5 Control of Substances Hazardous to Health (COSHH)
Material safety data sheets covering the various replaceable cartridges
are available upon request. Contact your local supplier or distributor.

MEDICA-D 7/15 US Operator Manual ELGA
Page 4 MEDICA-D 7/15 US MANU40550 Version 2 –05/17
3. PRODUCT AND PROCESS
DESCRIPTION
3.1 Product Description
The MEDICA-D 7/15 US water purification system has been
specifically designed to provide a supply of highly purified water with
reduced dissolved gas content to clinical analyzers requiring a
pressurized feed.
The MEDICA-D 7/15 US can be bench or wall mounted with an
optional wall mounting kit. A range of accessories are available to
complement the unit. (See Section 11 –Consumables and
Accessories, for detail).
Power switch
ON/OFF
Mains
power
socket
Fuse
Feedwater
inlet
connection
Removable cover
Control panel
Door
Sanitization port
Removable
cover
MEDICA-D 7/15 US Unit

ELGA MEDICA-D 7/15 US Operator Manual
MEDICA-D 7/15 US MANU40550 Version 2 –05/17 Page 5
3.2 Process Description
The MEDICA-D 7/15 US process links six purification technologies,
reverse osmosis, adsorption, ion-exchange, vacuum deaeration,
photo-oxidation and sub-micron filtration. It also incorporates a
recirculation/delivery pump and an optional RO feed water boost
pump.
The unit is designed to operate from a good quality potable water
supply, and produces either 7 or 15 liters per hour of purified reverse
osmosis grade water which is further purified and circulated through a
treated water reservoir. This water is available on demand by the
analyzer at up to 0.6 l/min.
A graphics screen displays the system status and provides control by
means of three function buttons.
The water is processed and treated by the MEDICA-D 7/15 US unit as
follows:
Potable water enters through a strainer and inlet solenoid
valve at either regulated mains water pressure, or is pumped
by means of a feed water pump (optional), and passes
through the pre-treatment cartridge. The pre-treatment
cartridge has been designed to protect the reverse osmosis
cartridges from particulate/colloidal matter and excessive
free chlorine, which may be present in the incoming feed
water.
The water then passes the sanitization port and through one
or two reverse osmosis cartridges, set up in series, which
split the flow into permeate and concentrate streams. The
permeate water is further purified whilst the waste
concentrate stream is passed to drain.
The permeate water passes through a water quality sensor
which measures the conductivity of the water.
The permeate water is drawn into the main recirculation
stream by the recirculation pump together with water from
the reservoir and is split into two streams. One stream is
used to provide motive power to an ejector to produce a
vacuum for the degasser before passing to the reservoir.
The second stream passes through the recirculation
purification loop.
The partially purified water then passes through the ion-
exchange cartridge which removes dissolved ionic impurities
from the permeate water.
This water is pumped directly through a degassing chamber
operating under vacuum to reduce levels of dissolved
gasses and then through the UV chamber where it is
exposed to intense UV radiation to provide continuous
bacterial control by photo-oxidation and to promote the
cleavage of organic molecules.
The purified water passes through a 0.2µm filter to remove
any remaining bacteria.
Finally, the water is passed through a:
Water quality sensor, which measures the resistivity of
the water.
Temperature sensor which provides accurate
temperature measurement.
The delivery of water is controlled by means of a pressure
switch which senses when the analyzer demands water.
During periods of non-use the unit will automatically operate
in intermittent recirculation mode to maintain water purity
with maximum efficiency.

MEDICA-D 7/15 US Operator Manual ELGA
Page 6 MEDICA-D 7/15 US MANU40550 Version 2 –05/17
Process Flow Diagram –MEDICA-D 7/15 US
Line Cell
Delivery Pump
DV25
Line Cell
Deionised
Resin Pack
Pressure Regulator
Strainer
Vaccum switch
Pressure switch
Isolating Valve
V3
Isolating Valve
Isolating Valve
Product outlet to analyser
Sanitisation isolating valve
Pressure switch
Concentration drain
Emergency by-pass
Flow
controller
0.2µm
capsule
filter
LC125
UV
LC105
Pressure regulator
Strainer
Degas module
Temperature
sensor
Line cell
Strainer
Delivery pump
Line cell
Vacuum switch
Outlet
Inlet
Inlet
Outlet
Drain
Drain
Strainer
Solenoid
Boost
pump
(optional)
Pre-treatment
LC140
DV25
or
reservoir
Feed
water
inlet

ELGA MEDICA-D 7/15 US Operator Manual
MEDICA-D 7/15 US MANU40550 Version 2 –05/17 Page 7
3.3 Technical Specifications
The specifications for the MEDICA-D 7/15 US are as follows:
Feedwater
MEDICA-D 7 US
MEDICA-D 15 US
Feedwater
Source quality
Potable mains water supply
Potable mains water supply
Fouling index-maximum
10
10
Total dissolved solids-maximum
1400S/cm
1400S/cm
Free chlorine - maximum
0.5ppm
0.5ppm
Heavy metals - maximum
0.05ppm
0.05ppm
Silica- maximum
30ppm
30ppm
Temperature
1 - 35°C
1 - 35°C
Flowrate (maximum requirement)
78 l/hr
85 l/hr
Feedwater Pressure
Maximum - without internal boost pump
6.0 bar (90 psi)
6.0 bar (90 psi)
Minimum - without internal boost pump
4.0 bar (60 psi)
4.0 bar (60 psi)
Maximum - with internal boost pump
2.0 bar (30 psi)
2.0 bar (30 psi)
Minimum - with internal boost pump
Flooded suction
Flooded suction
Drain requirements (gravity fall with air gap). Maximum during service.
70 l/hr
70 l/hr
Connections
Inlet - quick connect
8mm (5/16") OD
8mm (5/16") OD
Outlet - quick connect
8mm (5/16") OD
8mm (5/16") OD
Drain RO - quick connect
8mm (5/16") OD
8mm (5/16") OD
Analyzer feed
8mm (5/16") OD
8mm (5/16") OD
Delivery pump feed - quick connect
8mm (5/16") OD
8mm (5/16") OD
Positioning
Wall, bench or under bench
mounted.
Wall, bench or under bench
mounted.
Environment
Clean dry indoor.
Temp 5 - 40°C.
Humidity max 80%
non-condensing.
Clean dry indoor.
Temp 5 - 40°C.
Humidity max 80%
non-condensing.

MEDICA-D 7/15 US Operator Manual ELGA
Page 8 MEDICA-D 7/15 US MANU40550 Version 2 –05/17
Electrical Requirements
Mains input
100-240V ac, 50-60Hz all models
System voltage
24V dc
Power consumption with boost pump
83VA
Power consumption without boost pump
60VA
Fuses
2 x T6.3 Amp
Reservoir level connection
Jack plug 3.5mm
Noise level
<45 dBA
User Interface
Display
Continuous graphical and numerical reservoir level display.
Graphical flow schematic on screen with mimic display.
Intuitive icons.
Adjustable settings
Auto restart after power failure
Selectable
Audible alarm
Selectable
Water purity units
MicroSiemens/cm or Megaohms.cm
Water purity
Alarm setpoints
Indicators
Reverse osmosis permeate water
Conductivity
De-ionized water
Temp compensated resistivity/conductivity
Temperature
Degrees centigrade
Reservoir
% Full
Pre-treatment cartridge
Maximum remaining life indicator
UV lamp
Maximum remaining life indicator
Ion-exchange cartridge
Maximum remaining life indicator
0.2µm filter
Maximum remaining life indicator
Alarms-audiovisual
Purified water purity
Outside set point alarm
Reservoir
Low level
Reservoir
Level control disconnect alarm
UV failure alarm
Non start or current outside limits
Vacuum failure
Inadequate degasser vacuum alarm
Pre-treatment cartridge
Change reminder
UV lamp
Change reminder
Ion-exchange cartridge
Change reminder
0.2µm filter
Change reminder
Outputs
RS232 printer connection
RS232 remote display connection
Volt free contact-internal
Safety Features
Power fail safe
Boost pump protection from particulates
Delivery pump protection from particulates
Low operating voltage 24V
Audio visual alarms
Adjustable alarm settings
Emergency by-pass

ELGA MEDICA-D 7/15 US Operator Manual
MEDICA-D 7/15 US MANU40550 Version 2 –05/17 Page 9
Special Features
Low noise levels –minimum intrusion
Flow rate upgradable
Intermittent recirculation
Optional internal boost pump for low pressure feed waters
Optional printer kit for record of operating parameters
Optional remote display
Technologies
Purification methods
Adsorption
Reverse osmosis
Ultra violet radiation-short wavelength
Ion-exchange
Degassing
In-line 0.2µm filtration
Purified Water Specification
MEDICA-D 7 US
MEDICA-D 15 US
*Make up rate
7.5 l/hr
15 l/hr
*Daily output (nominal max)
180 l/24 hour day
360 l/24 hour day
Purity (delivered to analyzer):
Inorganic-typical
1 to >15 M.cm @25°C
Total Organic Carbon (TOC)
<30ppb
Dissolved oxygen
5 to 7ppm
**Bacteria
<1CFU/ml
pH
Effectively neutral
Particles
0.2µm filter
* Standard conditions are 4bar inlet pressure, 0bar back pressure
at 15 degrees centigrade, fed with potable water and a clean
pre-treatment cartridge. Refer to flow tables outside these
conditions.
** Subject to correct operating and maintenance procedures.
As part of our policy of continual improvement we reserve the right to
alter the specifications given in this document.

MEDICA-D 7/15 US Operator Manual ELGA
Page 10 MEDICA-D 7/15 US MANU40550 Version 2 –05/17
MEDICA-D 7/15 US Reverse Osmosis Capacity Charts
MEDICA-D 7
Flow (l/hr)
Pressure (bar)
Graph 1 - Nominal Flowrate vs Inlet Pressure for MEDICA-D 7 US
MEDICA-D 15
Flow (l/hr)
Pressure (bar)
Graph 2 - Nominal Flowrate vs Inlet Pressure for MEDICA-D 15 US

ELGA MEDICA-D 7/15 US Operator Manual
MEDICA-D 7/15 US MANU40550 Version 2 –05/17 Page 11
4. CONTROLS
The MEDICA-D 7/15 US operates with a tactile membrane touch pad
control panel which has a graphics display window and three program
function control buttons.
Details of how to use the controls will be given in the appropriate
sections.
Control Button
Function
PROCESS
Turns the process ON/OFF
The MEDICA-D 7/15 US control panel has a range of control icons as
follows:
Button
Icon
Description
LEFT
Menu
Scroll
RIGHT
Reset
Mute alarm
Accept
Printer
Process button
Right hand
control button
Left hand
control button
Control Panel

MEDICA-D 7/15 US Operator Manual ELGA
Page 12 MEDICA-D 7/15 US MANU40550 Version 2 –05/17
5. INSTALLATION INSTRUCTIONS
5.1 Unpacking the MEDICA-D 7/15 US
The following items should be supplied with your MEDICA-D 7/15 US:
1. MEDICA-D 7/15 US unit
2. Cartridge pack LC141
3. Sanitization by-pass block fitted in the unit
4. Installation kit LA637
5. Operator manual
6. Mains lead
5.2 Positioning the MEDICA-D 7/15 US
Before commencing with installation and operation of the MEDICA-D
7/15 US unit, please read and observe the following points.
Environment
The unit should be installed on a flat, level surface, in a clean,
dry environment. The unit can also be wall mounted against a
vertical wall capable of supporting the weight (for this we
recommend the use of the wall mounting kit Part No LA610).
CAUTION!If unit is to be wall mounted, ensure it is
mounted on a substantial brick or concrete
solid wall capable of supporting the
operating weight of the system. If
mounting the unit on the wall, use the wall
mounting kit and follow the instructions
included in the kit.
Note: Refer to specifications for unit weights.
The unit is designed to operate safely under the following
conditions:
Indoor use
Altitude up to 2000m
Temperature range 5 - 40°C
Maximum relative humidity 80% @ 31°C decreasing linearly
to 50% @ 40°C, non-condensating
The unit is in Installation Category II, Pollution Degree 2, as per
IEC1010-1.

ELGA MEDICA-D 7/15 US Operator Manual
MEDICA-D 7/15 US MANU40550 Version 2 –05/17 Page 13
Electrical
The units can be connected universally to any electrical supply
in the range of 100 - 240V and 50 - 60Hz. The mains lead is
supplied with a molded plug on one end and a molded
connector to the unit on the other. The unit should be connected
to an earth.
Drain
A semi rigid flexible connection to a sink or suitable drain
capable of handling at least 1.5 l/min is required. The drain point
should have a gravity fall below the level of the unit and any
connections direct to drain should have an air-break device
fitted.
Feed Water
The feed water should be of good quality and comply with
specifications provided. This should enter the unit via an 8mm
(5/16") O/D semi rigid tube, and should be in the temperature
range 1 to 35°C.
CAUTION! Operating temperatures outside the range
1 to 35°C will cause damage to the
MEDICA-D 7/15 US unit.
For pressurized feeds, the minimum direct inlet pressure is
4.0bar (60psi) and maximum inlet pressure is 6bar (90psi).
Higher feed water pressures must be reduced using a pressure
regulator valve (Part No. LA512).
Mains power socket
Mains power lead
Fuse
ON/OFF
switch
Electrical Connections

MEDICA-D 7/15 US Operator Manual ELGA
Page 14 MEDICA-D 7/15 US MANU40550 Version 2 –05/17
Pump feed
Recirculation
to docking
vessel/
reservoir
Outlet to
analyzer
Ejector return to
docking vessel/
reservoir
Right-Hand Side Connections
5.3 Connecting Up the MEDICA-D 7/15 US
Once the MEDICA-D 7/15 US unit has been positioned either on a wall
or on a bench, it should be connected as follows:
Mains water inlet tube
Drain
Pump feed
Outlet to analyzer
Recirculation to docking vessel/reservoir
Ejector return to docking vessel/reservoir
Step 1 - Fitting Tubes
1. PUSH in collet on connector.
2. PULL out transit plug.
3. CUT a clean square end on an 8mm (5/16") O/D
semi rigid tube.
4. PUSH tube into connector.
CAUTION! Do not restrict drain line.
CAUTION! If the water supply is at a pressure greater
than 6bar (90psi) fit a pressure regulator
(LA512).
Pull plug
Connector
Collet
Blanking
transit plug
Depress
collet
Clean square
cut end
Tube 8mm OD
Simply push in tube to attach
Tube in secured position
Fitting Tubes
Feed Water Inlet
Connections
Blanking
plug
Drain
Feed
Water