OPERATING INSTRUCTIONS
Central water supply
for MEMMERT appliances with humidity control
Manufacturer and customer service
MEMMERT GmbH + Co. KG
P. O. box 17 20
91107 Schwabach, Germany
Äußere Rittersbacherstr. 38
91126 Schwabach
Germany
Phone: +49 (0)9122 925-0
Fax: +49 (0)9122 14585
E-mail: sales@memmert.com
Internet: www.memmert.com
Customer service:
Service hotline: +49 (0)9171 9792 911
Service fax: +49 (0)9171 9792 979
E-mail: service@memmert.com
When contacting customer service, always quote the product serial number on the
nameplate.
Shipping address for repairs:
Memmert GmbH + Co. KG
Kundenservice
Willi-Memmert-Str. 90-96
DE-91186 Büchenbach
Germany
Please contact our customer service before sending appliances for repair or before returning equipment, otherwise, we have to refuse acceptance of the shipment.
© 2012 MEMMERT GmbH + Co. KG
Date 11/2012
We reserve the right to make changes
About this manual
About this manual
Purpose and target audience
This instruction manual describes the setup, function, operation and maintenance of the
central water supply for MEMMERT appliances with humidity control. It is intended for
use by trained personnel of the owner, who have the task of operating and/or maintaining the respective appliance.
If you are asked to work on the appliance, read this manual carefully before starting. If
there is something you do not understand, or certain information is missing, ask your
manager or contact the manufacturer. Do not do anything without authorisation.
Other documents that have to be observed:
► The instruction manuals for the MEMMERT appliances that are to be connected to the
central water supply
Storage and resale
This instruction manual belongs with the appliance and should always be stored where
persons working on the appliance have access to it. It is the responsibility of the owner
to ensure that persons who are working or will work on the appliance are informed as to
the whereabouts of this instruction manual. We recommend that it is always stored in a
protected location close to the appliance. Make sure that the instruction manual is not
damaged by heat or humidity. If the appliance is resold or transported and then set up
again at a different location, the operating instructions must go with it.
3
Contents
Contents
1. Construction, description and function 5
1.1 Construction ........................................................................................................................ 5
1.2 Description ........................................................................................................................... 6
1.3 Function ............................................................................................................................... 6
1.4 Technical data ...................................................................................................................... 6
1.5 Intended use and improper use .......................................................................................... 6
1.6 Scope of delivery ................................................................................................................. 7
1.7 Optional accessories/spare parts ......................................................................................... 7
2. Putting into operation 8
2.1 Setting up ............................................................................................................................ 8
2.2 Connecting .......................................................................................................................... 8
3. Replacing filter cartridges 10
3.1 Need to replace the filter cartridges ..................................................................................10
3.2 Removing covers ............................................................................................................... 11
3.3 Replacing filter cartridges .................................................................................................. 12
3.4 Cleaning the water supply tank ........................................................................................ 12
3.5 Put the covers back on ...................................................................................................... 14
3.6 Disposing of used filter cartridges.....................................................................................14
4
Construction, description and function
1. Construction, description and function
1.1 Construction
1
5
In case of visual alarm,
limit exceeded. Change
filter cartridge immediately.
2
6
3
4
7
8
9
10
Fig. 1 Construction
1 Tube connections for one MEMMERT appliance with humidity control
2 Connection for power supply unit (12 V DC)
3 LED (warning display, if filter cartridge is empty)
4 Supply tube for tap water
5 Monitoring unit for water conductivity
6 Tubes from water supply tank to the tube connections on the front of the appliance (1)
7 Filling tube from the filter cartridge to the water supply tank
8 Water supply tank
9 Sensor for measuring conductivity of water from the filter cartridges
10 Filter cartridges in plexiglass containers
5
Construction, description and function
1.2 Description
The steam generator in MEMMERT appliances with humidity control is supplied with
demineralised water from tanks that must be regularly refilled with commercially available demineralised water. Using demineralised water is imperative, as otherwise pumps
and pipes could become calcified.
With a central water supply, up to three MEMMERT appliances with humidity control
can be supplied with demineralised water. The tanks, and therefore refilling, are then no
longer necessary.
1.3 Function
Via the supply tube (Fig. 1, No. 4), tap water is fed through the filter cartridges (10) and
this way demineralised. The demineralised water is channelled, float controlled, to a water supply tank (8) connected (6) with three tube connectors to the front of the appliance
(1). Up to three MEMMERT appliances with humidity control can be connected here.
The conductivity of the demineralised water – and thus the correct function of the filter
cartridges – is measured continuously by a monitoring unit (5), supplied via the connection on the front of the appliance (2) with 12 V direct current by the included plug-in
power supply unit. If the conductivity exceeds a certain value, the LED at the front will
flash (3, see also page 10) and a warning signal will sound. Then, the filter cartridges
must be replaced (see page 10).
1.4 Technical data
Height (mm) 735
Width (mm) 355
Depth (mm) 255
Weight [kg] 15 (with empty water supply tank)
Power supply 12 V DC via power supply unit 230/110 V AC
1.5 Intended use and improper use
The central water supply must only be used to supply MEMMERT appliances with humidity control with demineralised water. Any other use is improper, and may result in damage. In particular,
► connecting other appliances to the central water supply is not permissible
► filling the central water tank with fluids other than drinking water with a pressure of
maximum 2.5 bar and a maximum temperature of 40 °C
► operation with other filter inserts than those provided by the manufacturer
► attaching and fitting parts not approved by the manufacturer
6
Construction, description and function
1.6 Scope of delivery
► central water supply
► power supply unit 230/110 V AC → 12 V DC
► water supply tube 2 m
► filter key
► the operating instructions at hand
1.7 Optional accessories/spare parts
► connection tube for MEMMERT appliances (order No. B04310, length 2 m)
► replacement filter cartridge (order No. E06290)
► pressure reducer (order No. E06291)
7
Putting into operation
2. Putting into operation
Caution:
After putting it into operation, do not initially leave the appliance unattended.
Check whether there are any leaks, i.e. if water comes out anywhere.
2.1 Setting up
The following must be available at the installation location:
► a mains supply 230 or 110 V AC
► a connection to the water supply (water tap) 3/4“
2.2 Connecting
(See connection diagram. Fig. 3)
1. Connect every MEMMERT appliance that is to be supplied with demineralised water
to the central water supply. To do so, connect the water pipe of the appliance, which
is normally connected to its water tank, to one of the three connections at the front
of the central water supply (Fig. 3, No. 1). Push the tube into the connection. It is automatically locked. Read the operating instructions of the respective appliance when
doing this.
If the water tubes are too short, you can purchase longer tubes from MEMMERT (see
Chapter 1.7 Optional accessories/spare parts on page 7).
For tube removal, push the metal bracket on the connection upwards and pull off the
tube.
2. Connect the water supply tube provided to the front of the central water supply. Connect the other end (coupling) to a 3/4“ water tap (2).
Caution:
The water from the water supply must not be warmer than 40 °C, not have a pressure
higher than 2.5 bar and must be capable of being shut off. If necessary, install a pressure reducer and/or a stop valve.
3. Connect the supplied power supply unit of the central water supply to the mains supply (230/110 V AC) (3). The power supply unit provided is equipped with adapters for
various socket types, which automatically adjust the power supply unit to the correct
input voltage. Push the appropriate adapter, as shown in Fig. 2 on to the power
supply unit.
Fig. 2 Push on the power supply unit adapter
4. Turn on the water tap. The central water supply is now operational. The connected
appliances can be switched on.
8
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Putting into operation
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Fig. 3 Connection diagram
1 Connect ovens
2 Establish water supply
3 Establish power supply
9
Replacing fi lter cartridges
a
3. Replacing fi lter cartridges
3.1 Need to replace the fi lter cartridges
The filter cartridges, which demineralise the tap water, are used up after a certain period
of time. How long they last depends on the number of appliances connected and their
operating time, as well as the degree of humidity set and the quality of the supplied tap
water.
When the filter cartridges are used up, the LED
at the front of the central water supply
flashes (Fig. 4) and a warning signal sounds
for about 20 seconds. The conductivity of the
filtered water will then no longer correspond
to the requirements made of demineralised
water.
When the warning is set off, there is still approx. 10 litres of demineralised water in the
water supply tank of the central water supply.
This means that the appliances can still be
Fig. 4
Warning filter cartridges used
temporarily operated. The filter cartridges
should be replaced as soon as possible, however, to prevent untreated tap water getting
into the appliances at some point and possibly damaging them.
In case of visual alarm,
limit exceeded. Change
filter cartridge immediately.
Two replacement filter cartridges are required. These can be obtained from MEMMERT
under order No. E06290.
10
Replacing fi lter cartridges
3.2 Removing covers
In order to replace the filter cartridges, the covers of the central water supply must first
be removed.
1. Switch off any appliances connected.
2. Unplug the power supply unit from the socket and remove the 12-V connection plug
from the central water supply.
3. Turn off the water tap.
4. Dismantle the cover of the central water supply. To do so, remove the four screws at
the front and back and lift off the cover (Fig. 5).
5. Undo the fastening screws of the side and rear cover (U-shaped profile) and remove
the profile (Fig. 6). The filter cartridges can now be accessed at the rear.
Fig. 5
Remove fastening screws of the cover
and take off cover
Fig. 6
Undo the fastening screws of the side
and rear cover (U-shaped profile)
and remove the profile
11
Replacing fi lter cartridges
3.3 Replacing fi lter cartridges
Caution:
Always replace both filter cartridges.
1. Unscrew the two cartridge holders from the fixtures using the supplied filter spanner
(Fig. 7).
2. Take out the used cartridges and insert the replacement cartridges
(Fig. 8).
Fig. 7
Unscrew cartridge holders with filter spanner
3. Tighten the two cartridge holders again.
4. Check for tightness. To do so, re-establish the water supply (open water tap). If water
escapes from the screw connections of the cartridge holders, tighten the cartridges
more firmly with the filter spanner.
Fig. 8
Remove cartridges and
insert new ones
3.4 Cleaning the water supply tank
Clean the water supply tank each time you change the filters, but at least once per year.
Reason: Over time, deposits will form on the inner walls.
1. Switch off the water supply (turn off water tap, in case it is on).
2. Pull off the connection lines of the floating switch from the terminal strip
(Fig. 9, No. 1).
3. Pull the three feed pipes to the appliance connections (2) and the water supply tube
(3) from the filter cartridges and through the cover of the water supply tank.
4. Remove the attachment of the water supply tank (rubber band, 4).
5. Take off the water supply tank. Remove the cover and empty the tank.
6. Clean the inside of the tank with standard washing-up liquid and a brush and then
rinse it thoroughly with demineralised water.
12
Replacing fi lter cartridges
1
2
3
4
Fig. 9 Dismantle the water supply tank
1 Connection lines of the floating switch
2 Feed pipes to the appliance connections
3 Water supply tube
4 Attachment (rubber band)
7. Put the cover of the water supply tank back on. Place the tank back in its holder and
fasten it with the rubber band.
8. Push the three feed pipes to the appliance connections (2) and the water supply tube
(3) from the back through the cover into the water supply tank.
9. Plug the connection lines of the floating switch (1) back onto the terminal strip.
Check that the floating switch moves freely in the water supply tank.
13
Replacing fi lter cartridges
3.5 Put the covers back on
1. Carefully push the side and rear cover (U-shaped profile) back on and tighten (Fig.
10). When doing so, make sure that no lines or tubes get squashed, bent or damaged.
2. Put the cover back on and fasten with four screws (Fig. 11).
Fig. 10
Push the side and rear cover (U-shaped profile) back on and screw tight
3. Connect the power supply unit to the mains supply and the 12-V connection at the
front to the central water supply.
4. Re-establish the water supply (open water tap).
5. Put humidity chambers back into operation. Check that there are no leaks in the
water supply. If water should leak out: Check the tube connections. If water is leaking
from the bottom of the central water supply: Undo covers again, look for the leak
and eliminate it.
Fig. 11
Put the cover back on and fasten it
3.6 Disposing of used fi lter cartridges
Used filter cartridges can be disposed of in normal household waste.
14
Memmert GmbH + Co KG | Postfach 1720 | D-91107 Schwabach | Tel. +49 (0) 9122-925-0 | Fax +49 (0) 9122-145-85 | E-Mail: service@memmert.com | www.memmert.com
20.11.2012
Zentrale Wasserversorgung englisch
D24061
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