MELAG MELAdem 40 User manual

Subjects to technical changes 1
Operating manual
Water Treatment System
MELAdem®40
As of SN 0640MD1961
Dear Doctor:
Thank you very much for the trust which you have shown by purchasing this water
treatment system from MELAG.
For more than 55 years now, MELAG — a medium-sized family-owned and -operated
business — has specialised in the production of sterilization equipment for medical
practice. During this period, MELAG has succeeded in becoming a leading manufacturer
of sterilization equipment. More than 420,000 MELAG sterilization units sold throughout
the world testify to the exceptional quality of our products — which are manufactured
exclusively in Germany.
This water treatment system was manufactured and tested according to strict quality
criteria. Before placing this unit into operation, please thoroughly read this Operating
Manual. The long-term functional effectiveness and the preservation of the value of your
water treatment system will primarily depend on regular maintenance of this unit.
The staff and management of MELAG

2
Content
1METHOD OF OPERATION OF THE SYSTEM ..........................................................................................3
2DESIGN OF THE SYSTEM.........................................................................................................................4
3INSTALLATION AND CONNECTION OF THE SYSTEM..........................................................................5
3.1 Possible ways of installing and connecting the MELAdem®40............................................................5
3.2 Pressure of tap water...........................................................................................................................6
3.3 Installation of the MELAdem®40 to a wall............................................................................................6
3.4 Installation of MELAdem®40 to the Vacuklav®40-B/44-B.....................................................................7
3.5 Installation of MELAdem®40 to the Vacuquick®13-B / Vacuquick®14-B ..............................................9
3.6 Installation of the MELAdem®40 onto other MELAG autoclaves...................................................... 11
3.7 Connection of MELAdem®40 directly to the tap-water mains........................................................... 11
3.7.1 Conformity with the hygienic stipulations of EN 1717................................................................ 11
3.7.2 Connection to tap-water mains.................................................................................................. 12
3.7.3 Installation of the water quality monitor (optional) ..................................................................... 14
3.8 Connection of the MELAdem®40 to the Vacuklav®40-B / 44-B......................................................... 15
3.9 Connection of MELAdem®40 to the Vacuquick®14-B ....................................................................... 16
3.10 Connection of MELAdem®40 to the Vacuklav®41-B / Vacuklav®43-B .............................................. 17
3.11 Connection of the MELAdem®40 to the Vacuquick®13-B ................................................................. 18
4PUTTING INTO OPERATION.................................................................................................................. 19
5MAINTENANCE INSTRUCTIONS........................................................................................................... 19
5.1 Exchanging the mixed-bed-resin cartridges...................................................................................... 20
5.1.1 Complete exchange of the mixed-bed-resin cartridges............................................................. 20
5.1.2 Safe and water-tight closing of the cartridge housings.............................................................. 21
6TECHNICAL DATA.................................................................................................................................. 22
7CONSUMABLES AND SPARE PARTS.................................................................................................. 22
Abbildungen
Figure 1: View of the interior of the MELAdem®40.................................................................................................4
Figure 2: Incoming and outgoing positions of the hoses........................................................................................5
Figure 3: Types of Installation of MELAdem®40 ....................................................................................................6
Figure 4: Removal of the cover pieces before mounting the MELAdem®40..........................................................7
Figure 5: Position for hanging the MELAdem®40 to the Vacuklav®40-B / Vacuklav®44-B ....................................7
Figure 6: Correct position of MELAdem®40 on the housing of Vacuklav®40-B / Vacuklav®44-B..........................8
Figure 7: Housing from the rear, with mounting fixtures and adapter plate in final position..................................9
Figure 8: MELAdem®40 before attachment to the adapter plate.........................................................................10
Figure 9: Correct position of the MELAdem®40 to the Vacuquick®13-B / Vacuquick®14-B.................................10
Figure 10: Mounting fixture for MELAdem®40........................................................................................................11
Figure 11: Two possibilities of connecting MELAdem®40 directly to the tap-water mains ....................................12
Figure 12: Threading connections of the hoses of MELAdem®40.........................................................................13
Figure 13: Connection of MELAdem®40 to the Vacuklav®40-B / 44-B ..................................................................15
Figure 14: Connection of MELAdem®40 to the Vacuquick®14-B...........................................................................16
Figure 15: Connection of MELAdem®40 to the Vacuklav®41-B / Vacuklav®43-B..................................................17
Figure 16: Connection of MELAdem®40 to the Vacuquick®13-B...........................................................................18
Figure 17: Removing the filter wrench ...................................................................................................................20
Figure 18: How to use the cartridge housing wrench.............................................................................................21

Operating Manual of the MELAdem®40
3
1 Method of operation of the system
MELAdem®40 is a water treatment system that operates according to the ion-exchange process. It is
used for the complete demineralization of tap water. The cartridges contained in the filter chamber are
filled with mixed-bed resin. The cartridges are disposed of after they have become depleted: they are
completely exchanged upon every replacement. The MELAdem®40 reduces the content of salt in
untreated water by approx. 95 … 99% (depending on the degree of depletion of the mixed-bed resin). All
operational processes in the MELAdem®40 system are controlled by means of the pressure in the tap-
water line.
MELAdem®40 can be directly connected to a MELAG autoclave (for example, the MELAG Vacuklav®,
Vacuquick®or Euroklav®models) to automatically supply the autoclave with demineralized water. The
MELAdem®40 can, however, also be used as a completely separate water-treatment system. The flow
limit of 2 l/min must not be exceeded, however.
The MELAdem®40 may be installed onto the wall, in a lower cabinet, or directly at an autoclave.
If the room in which the MELAdem®40 water treatment system is to be installed does not have an open
drain in the floor (to catch overflow), we recommend using a MELAG Waterstop valve (MELAG art-no.
01056). In the event of leaks or overflow during operation, the moisture sensors of the Waterstop valve,
installed on the floor, will activate a solenoid valve to shut off the tap-water supply.
IMPORTANT: If the MELAdem®40 water treatment system is out of operation, the user should close off
the supply of the tap water system.

4
2 Design of the system
The MELAdem®40 mixed-bed resin system is delivered in pre-assembled form. Please see Figure 1 for a
description of the individual components of the MELAdem®40.
IMPORTANT: It is absolutely necessary to ensure the correct flow direction of the water. Please see
Figure 2 for the position of the incoming water feed and the outgoing supply points for the
MELAdem®40.
3
4
5
6
7
1
2
Figure 1: View of the interior of the MELAdem®40
1 Cover
The cover closes the MELAdem®40
enclosure at the top, and conceals the filter
wrench used to open the cartridge
enclosures. To open the cover, lift it vertically
at the arrow markings.
2 Filter housing wrench
The filter wrench is used to open the
cartridge enclosures. It can be stored under
the cover of the MELAdem®40.
3 Fastening screws
These 8 Phillips screws fasten the two
cartridge enclosures to the MELAdem®40
housing.
4 Housing
The housing protects the filter unit and is
used to store the filter housing wrench.
5 Hose connection
The hoses (MELAG order no. 28820)
connected to the elbow unions enable tap
water to flow into the MELAdem®40, and
demineralized water to flow out.
6 Elbow and dual unions
These threaded unions, coated with Teflon,
connect the hose to the container elements,
and connect the container elements to each
other.
7 Resin container elements
In these two containers, tap water flows
through the mixed-bed resin cartridges.

Operating Manual of the MELAdem®40
5
Input
Output
1
2
Figure 2: Incoming and outgoing positions of the hoses
3 Installation and connection of the system
3.1 Possible ways of installing and connecting the MELAdem®40____________________
The MELAdem®40 can be installed separately onto a wall, in a lower cabinet, or directly to an autoclave.
There are also different ways of connecting the MELAdem®40, depending on the type of autoclave which
it feeds. We will include the required accessory parts for your particular mode of connection, in
accordance with the information in your order. Please now consult the list in Section 7 below – “7
Consumables and spare parts” – and check to make sure that you have received all the parts in this
list.
In this section (3) – “3 Installation and connection of the system” – you need to pay attention only to
the information which applies to your case. The GUIDE TO INSTALLATION in the table below will help
you find the information you need.
Important! Please pay attention to the following instruction: Before you set up the MELAdem®40
and connect it, please be sure by all means to read the other sections of this Operating Manual for the
MELAdem®40, and be careful to follow the general instructions and warnings given there.
GUIDE TO INSTALLATION
Type of installation PLEASE SEE THE FOLLOWING SECTION FOR YOUR
TYPE OF INSTALLATION / CONNECTION PAGE
Wall installation 3.3 Installation of the MELAdem®40 to a wall 6
Vacuklav®40/44-B 3.4 Installation of MELAdem®40 to the Vacuklav®40-B/44-B 7
Vacuquick®14-B 3.5 Installation of MELAdem®40 to the Vacuquick®13-B / Vacuquick®14-B 9
Other MELAG
Autoclaves 3.6 Installation of the MELAdem®40 onto other MELAG 11
Type of connection
Tap water line 3.7.2 Connection to tap-water mains 11
Vacuklav®40/44-B 3.8 Connection of the MELAdem®40 to the Vacuklav®40-B / 44-B 15
Vacuquick®14-B 3.9 Connection of MELAdem®40 to the Vacuquick®14-B 16
Vacuklav®41/43-B 3.10 Connection of MELAdem®40 to the Vacuklav®41-B / Vacuklav®43-B 17
Vacuklav®13-B 3.11 Connection of the MELAdem®40 to the Vacuquick®13-B 18
The MELAdem®40 water treatment system must be installed in a clean place which is not subject to
frost, and which can be properly ventilated. The connection of the components must be in accordance
with the connection diagram (see the proper sections of this Operating Manual). The place of installation
must be such that the MELAdem®40 water treatment system can be properly assembled and installed,
operated, and later serviced and repaired.
1 Incoming tap-water feed
(incoming side), on the
right side as seen from the
front (as delivered). These
hoses can also be guided
through the hose mounts
both to the right or both to
the left.
2 Output of demineralized
water (output side), on the
left side as seen from the
front (as delivered).
These hoses can also be
guided through the hose
mounts both to the right or
both to the left.

6
3.2 Pressure of tap water ____________________________________________________
In order to ensure proper functioning of the system, the pressure of the tap water from the building mains
must be at least 1.5 bar. The maximum tap-water pressure may not be more than 10 bar.
3.3 Installation of the MELAdem®40 to a wall ____________________________________
Important! Be sure to use mounting systems which are suitable for your type of wall. The mounting
bolts must conform to the following specifications:
Minimum diameter of the mounting bolts: M4
Recommended and maximum diameter of the bolts: M5
Maximum diameter of the bolt heads (flat heads): 12 mm
Use the inner (close-standing) mounting rails for the MELAdem®40 (see Fig. 3, no. 1). The interval
between the holes drilled in the walls must be 118 mm (please use enclosed template for drilling). Make
sure that the wall can carry the weight of the system (approx. 2.4 kg). Be sure to choose the proper
fastening material, in accordance with the wall: for example, bolt anchor plugs with a diameter of 6 mm.
2
1
Figure 3: Types of Installation of MELAdem®40
Steps to follow for installation of MELAdem
®
40
1. Note: There are two modes of fastening the MELAdem®40: an inner and an outer mounting. If the
mounts are to be fastened to the wall, be sure to use the inner mounting mode (rails 1 above) !
2. Use the enclosed drilling template the mark the points for drilling. Important: Be sure to mount the
MELAdem®40 at the required height. Drill the holes in the wall. Warning: be careful of any cables or
electric lines that may be in the wall !
3. Place the bolt anchor plugs into the drilled holes, and fasten the mounts to the wall (article no.
37106) by screwing in the bolts.
4. Hang the MELAdem®40 in place.
1 Inner (close-standing)
mounting rails
2 Outer mounting rails

Operating Manual of the MELAdem®40
7
3.4 Installation of MELAdem®40 to the Vacuklav®40-B/44-B ________________________
To install the MELAdem®40 to the Vacuklav®40-B or to the Vacuklav®40-B or Vacuklav®44-B, the
mounting fixtures have already been attached to the autoclave enclosure at the MELAG factory. If,
however, these mounting fixtures are not yet on your unit, or if you wish to attach the MELAdem®40 to
the left side of the autoclave, then please follow the instructions in Section 3.6 below. These instructions
tell you how to attach the mounting fixtures yourself.
These mounting fixtures are concealed under cover pieces that can easily be removed by hand (see
Figure 4). There is a notch at the lower side of these cover pieces that helps you in removing the covers.
Use a flat tool or your fingernail to remove the cover pieces.
2
1
Figure 4: Removal of the cover pieces before mounting the MELAdem®40
2
1
Figure 5: Position for hanging the MELAdem®40 to the Vacuklav®40-B / Vacuklav®44-B
1 Cover pieces of the mounting
fixtures
2 Mounting fixtures for installing
the MELAdem®40
1 Housing cover of the
Vacuklav®40-B / 44-B
2 MELAdem®40

8
1
2
Figure 6: Correct position of MELAdem®40 on the housing of Vacuklav®40-B / Vacuklav®44-B
Steps to follow for installation of MELAdem
®
40
1. Important note: Since the mounting fixtures are already attached to the unit, it is not
necessary to remove the housing from the autoclave !
2. Remove the cover pieces from the mounting fixtures, as described above .
3. Hang the MELAdem®40 down into the mounting fixtures by sliding it vertically from above,
and push it downward until it locks firmly into place (see Figure 5). The final position is
shown in Figure 6 below.
1 Cover housing of the
Vacuklav®40-B / 44-B
2 MELAdem®40

Operating manual of the MELAdem®40
9
3.5 Installation of MELAdem®40 to the Vacuquick®13-B / Vacuquick®14-B ____________
The MELAdem®40, together with the Vacuquick®13-B / Vacuquick®14-B, are delivered with an adapter
plate. This plate mounts the MELAdem®40 at a height that enables easy exchange of the cartridges. The
overall height of the autoclave remains the same, since the MELAdem®40, together with the adapter
plate, does not extend beyond the display.
The holes (2 x 4.2 mm) between the top air slots are necessary for mounting of the MELAdem®40. If
your unit does not have these holes, please read in Section 3.6 for a description of on alternative manner
of mounting.
2
1
Figure 7: Housing from the rear, with mounting fixtures and adapter plate in final position
Steps to follow for installation of MELAdem
®
40
1. Warning: First switch off the unit and pull out the power plug.
2. Remove the housing cover of the autoclave.
3. Press the mounting fixtures (article no. 37106) into the adapter plate (article no. 79780).
4. Use the centrally drilled holes in the mounting fixtures and the already provided holes in
the enclosure to fasten the metric screws (M4, 20 mm) from the inside with tooth lock
washer and nuts.
5. Note: The adapter plate will be pressed against the mounting fixtures, and will lock the
position of the MELAdem®40 in correct position, only after you have hung the
MELAdem®40 in place by vertically sliding it down securely until it locks.
6. Replace the housing cover of the autoclave.
7. Hang in the MELAdem®40 vertically from above, and slide it downward, until the housing
of the MELAdem®40 locks into the mounting fixtures. See Figure 9 for the final position.
1 Adapter plate (Art. Nr. 79780)
2 Housing cover of the
Vacuquick®13-B / Vacuquick®14-B

10
2
1
3
Figure 8: MELAdem®40 before attachment to the adapter plate
1
2
Figure 9: Correct position of the MELAdem®40 to the Vacuquick®13-B / Vacuquick®14-B
1 Housing cover of the
Vacuquick®13-B / Vacuquick®14-B
2 Adapter plate (Art. No. 79780)
3 MELAdem®40
1 MELAdem
®
40
2 Housing cover of the
Vacuquick®13-B / Vacuquick®14-B

Operating manual of the MELAdem®40
11
3.6 Installation of the MELAdem®40 onto other MELAG autoclaves _________________
The mounting fixtures into which the MELAdem®40 is hung can be directly attached to the autoclave housing for
any other MELAG autoclaves. The procedure is similar to wall installation. The horizontal interval of the 4.2 mm
holes in the housing is always 118 mm. A drilling template is provided along with the equipment: please use it to
ensure that the height is correct. The sequence of installation is as follows:
1
2
Figure 10: Mounting fixture for MELAdem®40
3.7 Connection of MELAdem®40 directly to the tap-water mains ____________________
3.7.1 Conformity with the hygienic stipulations of EN 1717________________________________________
You must connect your MELAdem®40 to the tap-water mains in accordance with EN 1717, in such a manner that
your system will not contaminate the drinking-water network.
For protection of a drinking-water network to which an autoclave is connected, EN 1717, Part 4, stipulates that a
combination of the following two units on the rear wall of the autoclave must be installed: a return-flow inhibitor
(non-return valve) together with a backsiphonage preventer. In many buildings, this protective equipment is already
installed. To be sure, please consult your plumbing and installation specialists!
Steps to follow for installation of MELAdem
®
40 :
1. Warning: First switch off the unit and pull out the power plug.
2. Remove the housing cover of the autoclave.
3. Place the drilling template onto its correct position, and drill 2 x 4.2 mm holes in the unit
housing.
4. Use the centrally drilled holes in the mounting fixtures (see Fig. 10) to fasten the metric
screws (M4, 20 mm) from the inside with tooth lock washers and nuts.
5. Replace the housing cover of the autoclave.
6. Hang in the MELAdem®40 vertically from above, and slide it downward, until the housing
of the MELAdem®40 locks into the mounting fixtures.
1 Mounting fixtures (37106)
2 Centrally drilled hole for
metric screw M4

12
3.7.2 Connection to tap-water mains __________________________________________________________
In the building where the MELAdem®40 is installed, there must be a stop valve with a return-flow inhibitor
(non-return valve) and with a ¾" outside-thread connection, in the vicinity of the installation point. In
order to support you to conform to the official stipulations in your installation of your MELAdem®40,
regardless of the facilities in your building, we recommend one of the two models described below in
Figure 11.
Water faucet with return-
and backsiphonage preventer
MELAG-Art-No.: 37310
Untreated-water input hose (DN 6) for MELAdem
®
40
A
lready existing angle-type non-return valve
10 mm cold-water line
(to a mixer)
A
dditional water faucet with
return flow inhibitor and
backsiphonage preventer (for
connection to an existing
MELAG-Art-No.: 58130
Variation I
Variation II
Tap-water adapter
MELAG-Art.-No.09037
Tap-water adapter
MELAG-Art.-No.09037
Untreated-water input hose (DN 6) to the
MELAdem®40
angle-type non-return valve)
Figure 11: Two possibilities of connecting MELAdem®40 directly to the tap-water mains
Variation I: A separate water line (DN 15 nominal pipe size, with ½" coupling) already exists, or will be
especially installed. Installation of a water faucet with integrated safety combination (MELAG article no.
37310).
Variation II: Cold-water connection (for example, for a sink) with an angle-type non-return valve and
hose (10 mm) already exists, or will be especially installed. Installation of an additional water faucet with
integrated safety combination (MELAG article no. 58130), by direct installation to an existing angle-type
non-return valve.
Instructions on the hose connections for the MELAdem®40
Use a hose-cutter, or a sharp knife, to cut 2 pieces in the required lengths from the hose included in the
delivery (article no 28820).
At the plastic fast-screw connections, use a plastic union nut to connect the hoses to the MELAdem®40
at the incoming water feed (this is the right connection, as seen from the front, when the printing
“MELAdem®40” is visible). At the output water feed, this is the left connection, as seen from the front,
when the printing “MELAdem®40” is visible. The first step is to slide the union nut onto the end of the
hose. Then shove the hose until it will go no farther onto the socket of the fast-screw connections, on the
right and left connections of the MELAdem®40. Then shove the union nuts up to the threads and screw
them on finger-tight.
Make the connection of the free end of the hose to the water input, or to the consumer (depending on the
installation variation selected: see Fig. 11). Use a metal fast-screw connection for this purpose. The first
step here is to shove the metal union nuts onto the ends of the hoses, then push the hoses until they will
go no farther onto the socket of each of the metal fast-screw connection. Then tighten the metal union
nuts finger-tight, and then screw then about ¼ turn more with an open-end (engineer’s) wrench.

Operating manual of the MELAdem®40
13
Clamping
sleeve
Threading
PTFE-hose
Figure 12: Threading connections of the hoses of MELAdem®40
The connection of the hoses at the MELAdem®40 to the tap water supply and to the autoclave (depends
to the installation variation as mentioned in the guide to installation in chapter 3.1) is made with plastic
threaded connections. The connection of the free hose ends to the water supply and the consuming device
(depending on the installation version) is made by means of metal quick bolts. The metal nuts are put on the hose
ends which then are pushed until touch on the respective metal quick bolts. The nuts are now screwed up by hand
and finally tightened with a quarter turn by means of a wrench.

14
3.7.3 Installation of the water quality monitor (optional) ___________________________________
If the autoclave connected to the water treatment unit does not perform conductivity measurement, the quality of
the fresh purified water (aqua dem) can be inspected with the control monitor for water quality. An internal
conductivity measurement is integrated in MELAG autoclaves*. Therefore it is not necessary to install the control
monitor.
* as for Vacuklav®, Euroklav®und Vacuquick®
Installation of the conductivity sensor
1. Install the conductivity sensor, i.e. the T-piece with mounted conductivity probe, between the outlet side of the
MELAdem®40 (fig. 2, pos. 2) and the feed water inlet to the autoclave by disconnecting the inflow hose towards
the feed water inlet and inserting the T-piece.
2. Connect the cable of the conductivity sensor to the control monitor (connection “Probe”).
Adjusting the conductivity limit value on the control monitor
1. The housing lid is loosely positioned on the control
monitor upon delivery. Take off the housing lid.
2. The conductivity limit value is adjusted to 0.5 S/cm upon
delivery. The blue jumper can be repositioned as needed.
The numbers to the left of the PINs indicate the
conductivity limit value.
Position of jumper 1 2 3 4 5 6 7 8
Limit value in S/cm 0.5 1 2.5 5 10 20 50 100
3. Put the lid on the housing and fasten it to the bottom with
the four supplied screws. Then mount the grey covering
caps.
4. Insert the two supplied batteries (1.5 V AAA) into the battery compartment on the bottom of the control monitor.
Attachment of the control monitor
5. Attach the conductivity monitor to an easily accessible and well-visible place, i.e. using a double-sided
adhesive tape on the rear side of the control monitor.
6. Remember that the maximum length of the connection lead is 0.8 m.

Operating manual of the MELAdem®40
15
3.8 Connection of the MELAdem®40 to the Vacuklav®40-B / 44-B ___________________
The connection between the components of the system is provided by the hose delivered with the
equipment (outside diameter = 6 mm; hose-wall thickness = 1 mm; MELAG article no. 28820).
Important: do not allow the plastic hose to be twisted or curled or mashed (compressed).
The MELAdem®40 is connected to the autoclave according to the following diagram.
Figure 13: Connection of MELAdem®40 to the Vacuklav®40-B / 44-B
Steps to follow for installation of MELAdem®40
1. Make sure that the MELAdem®40 has been correctly attached to the autoclave, and that the mixed-
bed-resin cartridges are properly installed.
2. Close the tap water line.
3. Important Note: Start the Vacuum Test program. Stop this program after it has run approx. 20
seconds. This will dispel the remaining water pressure in the system.
4. Unscrew the cooling-water feed hose (12) from the unit.
5. Screw the cooling-water branch fitting (11) into the unit. Screw the cooling-water feed hose (12) onto
the cooling-water branch fitting (11).
6. Now attach the plastic hoses (3) to the MELAdem®40 (2). Attach the feed hose (11) to the
MELAdem®40 to the left elbow fitting. Attach the output hose (3), from the MELAdem®40 to the
autoclave, to the right elbow fitting of the MELAdem®40.
7. Attach the MELAdem®feed-water filter (5) in-line to the plastic hose.
8. Make sure that all line connections are tight, and that there are no leaks.
9. Open the tap water line.
If MELAdem®40 is installed directly to the water tap, we recommend using a MELAG Waterstop valve (MELAG art-
no. 01056). In the event of leaks or overflow during operation, the moisture sensors of the Waterstop valve,
installed on the floor, will activate a solenoid valve to shut off the tap water supply.
With the spray pistol MELAjet®(1) instruments can be cleaned or rinsed after disinfection with
demineralized water before sterilization.
1 MELAjet(MELAG Art.-No.: 30300) optional
2 MELAdem40
3 Tap water supply hose to MELAdem40
4 Feedwater input fittings for demineralised water
(MELAG article no. 53465 –delivered with
MELAdem40)
5 Feed water filter for MELAdem®40
6 Wall drain (nominal pipe size = NW 40, to be provided
by the user)
7 Dual-chamber waste-water trap (MELAG article no.
26635)
8 Double hose- support sleeve with anti-flooding flaps
(MELAG article no. 37400: included with surface-
mounted wall drain [MELAG article no. 37410])
9 Cooling-water drain hose (DN 16 rating)
10 Cooling-water drain fitting
11 Cooling-water feeder and branch fittings (MELAG
article no. 37241)
12 Cooling-water feed hose (pressure hose)
13 Water faucet (provided by the user)
14 Power connection
15 Optional: leak monitor with shut-off valve and sensor
(MELAG article no. 01056)
16 Rear view of Vacuklav40-B / 44-B
8
1
2
3
4
5
6
7
9
1011
12
13
14
15
16
17
17 Safety combination, consisting of a return-flow inhibitor
(non-return valve) together with a backsiphonage pre-
venter, in accordance with EN 1717

16
3.9 Connection of MELAdem®40 to the Vacuquick®14-B___________________________
The connection between the components of the system is provided by a pressure-proof hose (outside
diameter = 6 mm; hose-wall thickness = 1 mm; delivered with the equipment; MELAG article no. 28820).
Important: do not allow the plastic hose to be twisted or curled or mashed (compressed).
The MELAdem®40 is connected to the autoclave according to the following diagram.
1 MELAjet(MELAG Art.-No.: 30300) optional
2 MELAdem40
3 Tap water supply hose to MELAdem40
4 Feed-water input fittings for demineralised water
(MELAG article no. 53465)
5 Feed water filter for MELAdem®
6 Wall drain (nominal pipe size = NW 40, to be provided by
the user)
7 Dual-chamber waste-water trap (MELAG article no.
26635 – included with delivered equipment)
8 Double hose- support sleeve with anti-flooding flaps
(MELAG article no. 37400: included with surface-
mounted wall drain [MELAG article no. 37410])
9 Cooling-water drain hose (DN16 rating)
10 Cooling-water drain fitting
11 Cooling-water feeder and branch fittings (MELAG article
no. 37241)
12 Cooling-water feed hose (pressure hose)
13 Water faucet (provided by the user)
14 Power connection
15 Optional: leak monitor with shut-off valve and sensor
(MELAG article no. 01056)
16 Rear view of Vacuquick14-B
1
2
3
4
5
6
7
89
1011
12
13
14
15
16
17
17 Safety combination, consisting of a return-flow inhibitor
(non-return valve) together with a backsiphonage
preventer, in accordance with EN 1717
Figure 14: Connection of MELAdem®40 to the Vacuquick®14-B
Steps to follow for installation of the MELAdem®40:
1. Make sure that the MELAdem®40 has been correctly attached to the autoclave, and that the mixed-
bed-resin cartridges are properly installed.
2. Close the tap water line.
3. Important Note: Start the Vacuum Test program. Stop this program after it has run approx. 20
seconds. This will dispel the remaining water pressure in the system.
4. Unscrew the cooling-water feed hose (12) from the unit.
5. Screw the cooling-water branch fitting (11) into the unit. Screw the cooling-water feed hose (12) onto
the cooling-water branch fitting (11).
6. Now attach the hose to the MELAdem®40 (2). Attach the feed hose (3) to the MELAdem®40 to the
left elbow fitting. Attach the output hose, from the MELAdem®40 to the autoclave, to the right elbow
fitting of the MELAdem®40.
7. Attach the MELAdem®feed-water filter (5) in-line to the plastic hose.
8. Make sure that all line connections are tight, and that there are no leaks.
9. Open the tap water line.
If MELAdem®40 is installed directly to the water tap, we recommend using a MELAG Waterstop valve (MELAG art-
no. 01056). In the event of leaks or overflow during operation, the moisture sensors of the Waterstop valve,
installed on the floor, will activate a solenoid valve to shut off the tap water supply.
With the spray pistol MELAjet®(1) instruments can be cleaned or rinsed after disinfection with
demineralized water before sterilization.

Operating manual of the MELAdem®40
17
3.10 Connection of MELAdem®40 to the Vacuklav®41-B / Vacuklav®43-B ______________
The connection between the components of the system is provided by a pressure-proof hose (outside
diameter = 6 mm; hose-wall thickness = 1 mm; delivered with the equipment; MELAG article no. 28820).
Important: do not allow the plastic hose to be twisted or curled or mashed (compressed).
The MELAdem®40 is connected to the autoclave according to the following diagram.
5 One-way drain hose
6 Connection for distilled or demineralised water (swivelling
threaded fitting for hose 6 x 1; or: straight version as an
alternative)
7 Connection for pressure discharge
9 Cooler
10 Power cable
11 Ethernet 3 (Data-Interface)
12 Ethernet 2 (Data-Interface)
19 MELAjet(MELAG Art.-No.: 30300) optional
20 MELAdem40
21 Tap water hose to MELAdem40
22 Feed water filter for MELAdem®
23 Wall drain (nominal pipe size = NW 40, to be provided by
the user)
24 Dual-chamber waste-water trap (MELAG article no.
26635)
25 Double hose support sleeve with anti-flooding flaps
(MELAG article no. 37400: included with surface-
mounted wall drain [MELAG article no. 37410])
26 Pressure-discharge hose (MELAG article no. 39180)
27 Water faucet (provided by the user)
28 Optional: leak monitor with shut-off valve and sensor
(MELAG article no. 01056)
29 Untreated-water input hose to MELAdem40
10
19
20
5
6
7
9
12
11
21
23
242526
22
27
28
31
29
31 Safety combination, consisting of a return-flow inhibitor
(non-return valve) together with a backsiphonage
preventer, in accordance with EN 1717
Figure 15: Connection of MELAdem®40 to the Vacuklav®41-B / Vacuklav®43-B
Important: Before connecting a water-treatment unit to an autoclave, be sure to empty the water-
storage tank of the autoclave.
The simplest installation: disconnect the feed hose for demineralised water from the water-storage tank
connection, and directly connect the MELAdem®40 to the feed-water input (6).
Because of the different hose diameters, please replace the feed-water fitting (6, found on the unit with
standard configuration) by the following: articles no. 53430 and 21140 (also the 2 copper seals, article
no. 42360, delivered with the water-connection set, article no. 42360). In this example, the drain water
(used feed water) is forced by pressure directly through the one-way drain hose (MELAG article no.
39180), and into the wastewater trap.
If MELAdem®40 is installed directly to the water tap, we recommend using a MELAG Waterstop valve (MELAG art-
no. 01056). In the event of leaks or overflow during operation, the moisture sensors of the Waterstop valve,
installed on the floor, will activate a solenoid valve to shut off the tap water supply.
With the spray pistol MELAjet®(1) instruments can be cleaned or rinsed after disinfection with
demineralized water before sterilization.

18
Steps to follow for installation of the MELAdem®40:
1. Close the tap water line.
2. Connect the untreated-water input hose (29) of the MELAdem®40 to the tap-water network (27).
3. Screw the untreated-water input hose (29) to threaded connection (31). If you are using the
MELAjet®Pistol, please use the MELAjet® T-fitting (MELAG article no. 53465).
4. Now connect the plastic hose to the fast screw connections.
5. Make sure that all lines are tight, and that there are no leaks.
6. Open the tap water line.
3.11 Connection of the MELAdem®40 to the Vacuquick®13-B________________________
The connection between the components of the system is provided by the pressure-proof hose delivered
with the equipment (outside diameter = 6 mm; hose-wall thickness = 1 mm; MELAG article no. 28820).
Important: do not allow the plastic hose to be twisted or curled or mashed (compressed).
The MELAdem®40 is connected to the Vacuquick®13-B / Vacuquick®14-B as shown in the following
diagram.
4 Connection for aqua dist / aqua dem (swivelling
threaded fitting for hose 6 x 1; or: straight version as an
alternative)
7 Tank lid
8 Power cable
9 Ethernet 3 (Data-Interface)
10 Ethernet 2 (Data-Interface)
11 Cooler / Fan
22 Condensate container
23 Cable to the condensate tank
24 One-way drain hose
25 MELAjet(MELAG Art.-No.: 30300) optional
26 MELAdem40
27 Feed water filter for MELAdem®
28 Input hose for distilled or demineralized water
29 Water faucet (provided by the user)
30 Optional: leak monitor with shut-off valve and sensor
(MELAG article no. 01056)
36 Safety combination, consisting of a return-flow inhibitor
(non-return valve) together with a backsiphonage
preventer, in accordance with EN 1717
36
25
26
4
28
22
8
9
10
11
23
24
7
29
30 27
37 37 Tap water supply hose to MELAdem40
Figure 16: Connection of MELAdem®40 to the Vacuquick®13-B
Important: Before connecting a water-treatment unit to an autoclave, be sure to empty the water-
storage tank of the autoclave.
The simplest installation: disconnect the feed hose for demineralised water from the water-storage tank
connection, and directly connect the MELAdem®40 to the feed-water input (6).
Because of the different hose diameters, please replace the feed-water fitting (6, found on the unit with
standard configuration) by the following: articles no. 53430 and 21140 (also the 2 copper seals, article
no. 42360, delivered with the water-connection set, article no. 42360). In this example, the drain water
(used feed water) is forced by pressure directly through the one-way drain hose (MELAG article no.
39180), and into the wastewater trap.
If MELAdem®40 is installed directly to the water tap, we recommend using a MELAG Waterstop valve (MELAG art-
no. 01056). In the event of leaks or overflow during operation, the moisture sensors of the Waterstop valve,
installed on the floor, will activate a solenoid valve to shut off the tap water supply.

Operating manual of the MELAdem®40
19
With the spray pistol MELAjet®(1) instruments can be cleaned or rinsed after disinfection with
demineralized water before sterilization.
Steps to follow for installation of the MELAdem®40:
1. Close the tap water line.
2. Connect the untreated-water input hose (37) of the MELAdem®40 to the tap-water faucet (29).
3. Screw the untreated-water input hose (37) of the MELAdem®40 to threaded connection (36). If you
are using the MELAjet®Pistol, please use the MELAjet® T-fitting (MELAG article no. 53462).
4. Now connect the plastic hose (28) to the fast screw connections.
5. Make sure that all lines are tight, and that there are no leaks.
6. Open the tap water line.
4 Putting into operation
First carefully install the components. This includes the following: Install the new mixed-bed-resin
cartridges by following the instructions for exchanging the cartridges (see Section 5.1.1 below). Then
hook up the threaded hose connections. Then place the MELAdem®40 into operation by carrying out the
following steps:
Open the tap water line and check if the MELAdem®40 has no leaks and that all hoses are connected
tight.
The first filling of the MELAdem®40 takes approx. 5 minutes (depending on water pressure from the
tap). This first filling is necessary to provide enough treated water for the autoclave or another
consumer (for example, a MELAjet®).
Before first putting into operation, and after changing the mixed-bed-resin cartridges, be sure to run
one empty sterilization cycle with the autoclave, before the first full run with instruments in the
machine.
5 Maintenance instructions
Be sure to perform the following maintenance work, in the time intervals given below, to assure
satisfactory functioning of the system:
Interval Maintenance work
Daily Check the demineralised water with a conductivity measuring unit, the
conductivity monitor, or by the built-in conductivity measuring unit in an
autoclave
6 months Check the hoses and threaded connections to make sure that they do
not leak. Check the hoses to make sure that they are not kinked
(twisted), and that they are not mashed (compressed). Make sure the
hoses have not become brittle with age.
As needed Exchange the resin in the container element after you have used
approx. 120 litres of demineralised water from the unit. The exact
amount will depend on the quality of the tap water. If the MELAdem®40
is connected to an autoclave with a conductivity sensor (e.g., from the
Vacuklav® / Euroklav® / Vacuquick®lines), then the indicator on the
autoclave display will show when the resin in the cartridge must be
exchanged.

20
5.1 Exchanging the mixed-bed-resin cartridges__________________________________
5.1.1 Complete exchange of the mixed-bed-resin cartridges_______________________________________
When the mixed-bed resin becomes exhausted, the output water quality will become poor. Exchange
both of the mixed-bed-resin cartridges as follows:
Close off the supply of tap water (i.e., turn off the faucet)
Warning! Important for pressure release: If the system is connected to an autoclave from the
Vacuklav®/ Euroklav®/ Vacuquick®lines, start the program “Vacuum test”. Then interrupt the program
after approx. 20 sec. by pressing the Start/Stop button. These measures will release the water
pressure remaining in the systems. If the water-treatment system is not connected to an autoclave,
then normal delivery of the water to the MELAjet®will release the water pressure.
Remove the cover of the MELAdem®40 to gain access to the filter wrench.
Remove the wrench from the MELAdem®40 (see Figure 17).
1
Figure 17: Removing the filter wrench
Slide the wrench from the bottom onto the filter enclosure, and move it up toward the top as far as will
go. Allow it to lock into place there. Open each of the container elements by turning the wrench
clockwise (as seen from above): see Figure 18). As soon as the container elements can be easily
turned, you can remove the wrench and unscrew the elements by hand for the last turns..
Now pull the container elements off, toward the bottom. Caution: the container elements can be
completely full of water. Then remove the depleted mixed-bed-resin cartridges. You can dispose of
them as normal domestic waste.
Rinse out the container elements thoroughly under flowing water.
1 Filter wrench under the
housing cover