Miele G 7825 User manual

Operating instructions
Washer-disinfector
G 7825 / G 7826
To avoid the risk of accidents or
damage to the machine it is
essential to read these instructions
before it is installed, commissioned
and used for the first time.
G
M.-Nr. 06 408 201

Description of the machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Guide to the machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Warning and safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Opening and closing the door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Automatic mobile unit recognition (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mobile unit coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Setting mobile unit coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Areas of application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Loading the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Surgical instruments (OP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Anaesthetic instruments (AN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Baby bottles (BC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Operating theatre shoes (OS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Laboratory glassware (LG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Transfer trolley for loading and unloading the machine . . . . . . . . . . . . . . . . . . . . 28
Dispensing liquid chemical agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Preparing the DOS dispensers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Fill the containers with the relevant agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Venting the dispensing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Dispensing system maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
External Dispensing systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Master switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
To change operating level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Starting a programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Programme sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Switching off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Cancelling a programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Interrupting a programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Data transfer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Contents
2

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Periodic checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Process validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Routine checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Cleaning the filters in the wash cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Cleaning the fine filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Cleaning the flat filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Cleaning the filters for the circulation pump. . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Sprüharme reinigen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Cleaning the control panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Cleaning the front of the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Cleaning the wash cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Cleaning the door seals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Protein test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Mobile units, modules and inserts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Printer (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Renewing the paper roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Renewing the colour cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
After sales service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Converting the type of heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Converting from steam to electric heating or from electric to steam . . . . . . . . 49
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Plumbing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Special features - OXIVARIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Description of the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Areas of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Warning and Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Connecting the H2O2solution container . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Disposal of your old appliance or machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Contents
3

This Miele washer-disinfector is
capable of cleaning a wide range of
medical and laboratory products, and
disinfecting them either thermally in
temperatures up to 95 °C or chemo-
thermally in temperatures up to 65 °C
with the addition of a suitable chemical
agent in accordance with general
standards of hygiene and those
required for the containing of
epidemics.
Medical products include e. g. surgical
and minimally invasive instruments,
instruments and utensils used in
anaesthetics and intensive care, etc.
Laboratory products include e.g. wide
and narrow necked flasks, conical
flasks, measuring cylinders, pipettes,
beakers, Petri dishes etc.
Follow medical and laboratory product
manufacturer’s instructions on how to
process their items by machine. The
DESIN vario TD programme provides
optimum protection for rigid fibre
optics, patient systems and surgical
motor systems which have been
declared by their manufacturers as
being suitable for machine processing.
Optional drying with sterile filtered hot
air is also available.
Areas of application:
–surgical instruments,
–minimally invasive instruments can
be processed shortly after use,
–anaesthetic and intensive care
instruments,
–baby bottles and teats,
–stainless steel and aluminium
containers (including anodised
aluminium),
–operating theatre shoes,
– laboratory products used in research
and production as well as in all areas
of analysis and specimen taking,
including micro-biology and
biotechnology.
Instruments should preferably be
cleaned and then thermally disinfected
using the DESIN vario TD programme.
The parameters for thermal disinfection
in accordance with prEN ISO 15883-1
are 80 °C (+ 5 °C, - 0 °C) with a 10 min.
holding time or 90 °C (+ 5 °C, - 0 °C)
with a 5 min. holding time for the
inactivation of HBV.
Description of the machine
4

In the U.K. reference should be made
to your local infection control officer for
guidelines of disinfection temperatures
and holding times at temperature in
accordance with HTM 2030.
In Germany, the parameters for
disinfection of a temperature of 93 °C,
with a holding time of 10 minutes,
correspond to effective areas A and B.
These have been adopted into the
official list for disinfection of instruments
in washer-disinfectors and
decontamination units, according to
section 3.2 § 18 IfSG by the Robert
Koch Institute (RKI) in Berlin (institute
for infectious diseases and non-
communicable illnesses). (Programme
DESIN-BSG-93/10).
The effective areas are defined as
follows:
A = Suitable for the destruction of
vegetative bacteria, including
myco-bacteria, fungi and fungal
spores.
B = Suitable for inactivating viruses
(including HBV and HIV).
The cleaning programme must be
chosen according to the type of soiling
and product requiring processing in
order to ensure that disinfection is
carried out correctly, no residues are
left behind and that subsequent
sterilisation can take place. Medical
devices are best reprocessed using the
DESIN vario TD programme, or the
OXIVARIO programme where
applicable.
This washer-disinfector is programmed
to carry out the final rinse with mains
water or AD water (aqua destillata =
purified or de-ionised water (VE), H2O
pure, demineralised water or distilled
water where the application requires
this standard).
The water quality is of particular
importance for applications requiring
analytically clean laboratory glassware.
The type of chemical agents used will
depend on the analysis or analytical
methods being used.
Optional extras
– Drying unit (TA)
– Steam condenser (DK)
– Report printer (PRT)
– Dispensing systems DOS 2 and
DOS 4
– OXIVARIO kit
Water softener
If the mains water hardness level is
more than 70 mg/l (4°d), a water
softening system should be provided
on site, such as the Miele G 7897
"Aqua-Soft system" which is effective up
to approx 720 mg/l (40°d).
Description of the machine
5

Electronic controls
aDisplay
with screen saver;
i.e. background lighting switches off
automatically after 15 mins.
Press any button to switch the
display back on again.
bOn/Off button (I-0)
cCursor button: left 1
Moves the cursor to the left:
- to the previous menu point
- to the previous parameter
- to the previous input position
dCursor button: right 2
Moves the cursor to the right:
- to the next menu point
- to the next parameter
- to the next input position
eMinus button 3
– Selects programmes from position
24 upwards
– Scrolls back page by page in
menus
– Is used for entering numbers and
letters
– Alters pre-settings e.g. service
parameters
fPlus button 4
– Selects programmes from position
24 upwards
– Scrolls forward page by page in
menus
– Is used for entering numbers and
letters
– Alters pre-settings e.g. service
parameters
gDoor switch 5
Guide to the machine
6

hStart button 6
– Starts programmes
– Activates input mode
– Confirms activated values and
settings
– Confirms menu points for entry
into the relevant sub-menu
iStop button 7
– Cancels a programme
– Exits from input screen without
saving
– Exits from menu screen
jService interface 8
kProgramme selector
Selects programme places 1-23
Guide to the machine
7

Unclean side
aHot air drying unit TA (optional)
bHandle
c"Profitronic" electronic controls (see
also Programming Manual)
dControls
eMaster switch
(with emergency cut-off function for
service work)
fDrop-down door (closed)
gService panel
Guide to the machine
8

Unclean side
aFilter combination
bDrop-down door (open)
cContainers for dispensing systems
DOS 1 / DOS 3
(DOS 2 / DOS 4 optional)
Guide to the machine
9

Clean side (G 7826 only )
aHandle
bDoor release
cDrop-down door (closed)
dPrinter (optional)
G 7825: on the unclean side
eService panel
Guide to the machine
10

This machine complies with all
relevant legal safety requirements.
Incorrect use can lead to personal
injury and damage to property.
Read these operating instructions
carefully before starting to use this
machine. This way you will avoid the
risk of accidents and damage to the
machine.
Keep these instructions in a safe
place for reference, and pass them
on to any future user.
Correct use
This washer-disinfector is designed
for commercial use and for
specialised applications only, as
described in these operating
instructions. Alterations or conversions
to the machine or using it for purposes
other than those for which it was
designed are not permitted and could
be dangerous.
This machine must only be used for
cleaning and disinfecting instruments
or medical products and laboratory
ware if the manufacturer has stated that
they are suitable for machine
processing. Manufacturer’s cleaning
and maintenance instructions for
instruments etc. must also be
observed.
The manufacturer cannot be held liable
for damage caused by improper or
incorrect use of the machine.
This equipment may only be used
in mobile installations such as
ships if a risk assessment of the
installation has been carried out by a
suitably qualified engineer.
Please pay attention to the following
notes to avoid injury and damage.
The machine should be
commissioned and then
maintained only by a Miele authorised
and trained service technician. To
ensure compliance with the Medical
Devices Directive a Miele service
contract is recommended. Repairs and
other work by unqualified persons
could be dangerous.
Do not install the machine in an
area where there is any danger of
explosion or of freezing conditions.
The electrical safety of this
machine can only be guaranteed if
connected to a correctly installed
earthing system on site. It is most
important that this basic safety
requirement is tested regularly, and
where there is any doubt the electrical
system should be inspected by a
qualified electrician.
The manufacturer cannot be held liable
for damage or injury caused by the lack
of or inadequacy of an effective
earthing system (e.g. electric shock).
Warning and safety instructions
11

A damaged machine is a safety
hazard. Switch off at the mains
immediately and call the Miele Service
Department or an authorised and
trained Miele Service Dealer.
Personnel operating the machine
should be trained regularly.
Untrained personnel must not be
allowed access to the machine or its
controls.
This machine is not a toy! To avoid the
risk of injury never allow children to play
on or near the machine, or to operate it.
Take care when handling
chemicals such as cleaning agent,
neutralising agent, rinsing agent etc.
These may contain irritant or corrosive
ingredients. Do not use organic
solvents as these could cause an
explosion.
Follow all relevant safety procedures
carefully. Wear protective gloves and
goggles. With all chemical agents, the
manufacturer’s safety instructions must
be observed.
The water in the machine must not
be used as drinking water.
Be careful when sorting items with
sharp pointed ends and
positioning them in the machine that
you do not hurt yourself or create a
danger for others. Sharp knives etc.
should be placed in baskets with the
pointed ends facing downwards.
When using this machine in the
higher temperature ranges be
especially careful not to scald or burn
yourself or come into contact with
irritant substances when opening the
door. Where disinfecting agents are
used there is a danger of inhaling toxic
fumes. Baskets, inserts and utensils
must be allowed to cool down before
they are unloaded. Any water remaining
in containers could still be very hot.
Empty them into the wash cabinet
before taking them out.
After using the hot air drying unit
open the door to allow everything
in the cabinet from the load itself to the
mobile units, modules and inserts to
cool down.
Do not touch the heating elements
(under the wide area filter) during
or directly after the end of a
programme. You could burn yourself.
The elements remain hot for some time
after the end of the programme.
If the boiler has been programmed
to "BOILER READY", be particularly
careful of hot water and steam when
opening the door. Danger of burning or
scalding. The inlet to the wash cabinet
is located, as viewed from the unclean
side, underneath the basket runner on
the left hand side.
Steam heating is permissible up to
a pressure of 1000 kPa (10 bar).
This corresponds to a water steam
temperature of 179 °C.
Never clean the machine or near
vicinity with a water hose or a high
pressure hose.
Warning and safety instructions
12

The machine must be
disconnected from the mains
electricity supply before any
maintenance or repair work is carried
out. Do not reconnect it until the
maintenance or repair work has been
successfully completed.
The following points should be
observed to assist in maintaining
quality standards for processing
medical instruments and sensitive
laboratory glassware, and to avoid
injury to patients or damage to
equipment.
If the machine is being used for
disinfection in accordance with
official regulations on the control of
epidemics, the steam condenser and
its connections to and from the wash
cabinet must be cleaned and
disinfected whenever any repairs are
carried out or parts replaced.
For decontamination in
accordance with official
regulations, the programme must not
be interrupted by pressing the I-0
button to switch off after START has
been pressed . Interrupting any other
programmes should also be avoided as
this will reduce cleaning, disinfection
and the final rinse results. If it is opened
the programme should be completely
repeated.
The standard of cleaning and
disinfection programmes must be
routinely confirmed by the user. The
process should be thermally electrically
monitored on a regular basis and
checked against documented control
results. Chemo thermal procedures
should also be monitored using chemo
or bio indicators.
For thermal disinfection, use
temperatures and temperature
holding times to achieve the required
infection prophylaxis in accordance
with current health and safety
regulations.
Disinfection programmes which
use a chemical disinfecting agent
at moderate temperatures such as
65 °C or lower are not recognised by
§18 IfSG for disinfection. They should
only be used for items which cannot
withstand the higher temperatures used
by thermal disinfection. The range of
effective disinfection is based on claims
made by the producer of the
disinfecting agent. Their instructions on
handling, use and effectiveness must
be observed. The use of chemo-
thermal disinfection procedures is the
responsibility of the operator.
Warning and safety instructions
13

If there are toxic or chemical
substances in the suds solution
(e.g. aldehyde in the disinfecting agent)
you must be particularly vigilant of the
risks these carry should you need to
interrupt a programme and open the
door. The door seals and correct
functioning of the steam condenser
should be regularly monitored.
Theatre (OP) shoes should only be
cleaned and disinfected in a
machine installed specifically for this
purpose.
Only use chemical agents
formulated for special processes
and approved by Miele for use with this
machine. Use of unsuitable agents
could adversely affect the components
of the machine. Any resultant damage
would invalidate the machine
guarantee.
Pre-treatments with cleaning or
disinfecting agents can create
foam, as can certain types of soiling
and chemical agents. Foam can have
an adverse effect on the disinfection
and cleaning process.
Where a chemical additive is
recommended on technical
application grounds (e.g. a cleaning
agent), this does not imply that the
manufacturer of the machine accepts
liability for the effect of the chemical on
the items being cleaned.
Please be aware that changes in
formulation, storage conditions etc.
which may not be publicised by the
chemical manufacturer, can have a
negative effect on the cleaning result.
When using cleaning agents and
specialised products it is essential
that the manufacturer’s instructions are
followed. Only use the product for the
application described by the
manufacturer, to avoid any material
damage or the occurrence of strong
chemical reactions.
The machine is designed for
operation with water and additive
chemical agents only. Organic solvents
must not be used in this machine, as
there is the danger under certain
circumstances of fire or explosion.
Although this is not the case with all
organic solvents, other problems could
arise with their use, for example
damage to rubber and synthetic
materials.
In critical applications where very
stringent requirements have to be
met, it is strongly recommended that all
the relevant factors for the process,
such as chemical agents, water quality
etc. are discussed with the Miele
Application Technology specialists.
If cleaning and rinsing results are
subject to particularly stringent
requirements (e.g. chemical analysis,
specialised industrial processes etc.), a
regular quality control test must be
carried out by the user to ensure that
the required standards of cleanliness
are being achieved.
Mobile units, modules and inserts
should only be used for the
purpose they are designed for.
Hollow instruments must be thoroughly
cleaned, internally and externally.
Warning and safety instructions
14

Empty any containers or utensils
before arranging them in the
machine.
Do not allow any remains of acids
or solvents, and in particular
hydrochloric acid or chloride solutions,
to get into the wash cabinet. Similarly
avoid any materials with a corrosive
effect. The presence in compounds of
any solvents should be minimal
(especially those in hazard class A1).
Ensure that solutions or steam
containing hydrochloric acid do not
come into contact with the steel outer
casing of the machine, to avoid any
corrosion damage.
Please follow the advice on
installation in these instructions
and the separate Installation
Instructions.
Using accessories
Only use genuine Miele
accessories with this machine.
Consult Miele on the type and
application of such equipment.
Only use Miele mobile units,
baskets and inserts in this
machine. Using accessories made by
other manufacturers, or making
modifications to Miele accessories can
result in unsatisfactory cleaning and
disinfecting results, for which Miele
cannot be held liable. Any resultant
damage would also invalidate the
machine guarantee.
Disposal of your old machine
Before throwing an old machine
away it must first be made
unusable. Disconnect from the mains
and cut off the cable as close to the
machine as possible.
Please note that the machine may have
contamination from blood or other
bodily fluids in it and must be
decontaminated before disposal.
For environmental and safety reasons
ensure the machine is completely
drained of any residual water, chemical
residues and cleaning agent. Observe
safety regulations and wear safety
goggles and gloves.
Make the door lock inoperable, and
block or disable the door in such a way
that children cannot accidentally shut
themselves in the cabinet. Then make
appropriate arrangements for the safe
disposal of the machine. For tank
system machines ensure that any water
is emptied out of the tank before it is
moved.
The manufacturer cannot be held
liable for damage caused by
non-compliance with these Warning
and Safety instructions.
Warning and safety instructions
15

The door can only be opened if:
–the electricity supply to the machine
is switched on,
–the red (emergency cut out) master
switch is in the I-ON position,
–the I-0 On-Off button is pressed in
and
–a cleaning or disinfection programme
is not in progress.
The door on the clean side (G 7826)
can only be opened if:
– DESIN (disinfection) programmes
have been correctly completed,
or
– the door locking function is active
(see "Machine function/Door locking"
in the Programming Manual).
To open the door
^Press the 5door button, and holding
onto the door grip open the door.
,Do not touch the heating
elements under the wide area filter
during or directly after the end of a
programme. You could burn
yourself. They remain hot for some
time after the programme has
finished.
If the boiler has been programmed
to BOILER READY, be particularly
careful of hot water and steam when
opening the door. Danger of burning
or scalding. The inlet to the wash
cabinet is located, as viewed from
the unclean side, underneath the
basket runner on the left hand side.
To close the door
^Lift the door upwards and push until
it clicks shut.
Opening and closing the door
16

In operating level C the automatic
mobile unit recognition system (AWK)
allocates programme places from 1 - 15
to mobile units with the correct coding.
The unit coding (on the mobile unit) and
the programme place with the
corresponding programme (in the
electronic control unit) have to match
each other.
To do this:
^Each mobile unit must be coded
before being used for the first time
(see "Coding the mobile unit"), and
^The programme for which the mobile
unit is coded must be allocated to the
correct programme place.
See "System function - Selector switch
organisation" in the Programming
manual for information on how to
change programme positions.
,Before starting a programme it is
absolutely essential that you check
that the programme shown in the
display is the correct one for the
mobile unit being used.
Otherwise inadequate cleaning or
disinfection could be the result.
Please make sure, that the places
assigned for the programmes using
Automatic mobile unit recognition
are not changed around arbitrarily.
Automatic mobile unit recognition (Optional)
17

Mobile unit coding
The automatic mobile unit recognition
feature assigns a programme place to a
mobile unit. The mobile units must be
coded with a magnetic strip (via a Bit
combination).
In operating level C, the only
programme available for a coded
mobile unit is the one assigned to the
corresponding programme place.
After a coded mobile unit has been put
into the machine and the door closed,
the automatic mobile unit recognition
system will select the allocated
programme.
,Make sure that there are no
small metallic objects or instrument
parts attracted to the magnetic strip,
in particular to the underside of it.
Any metallic objects on the strip can
result in the coding being incorrectly
read.
Press 6to start the programme.
Coding is effected through 5 Bits:
–Bits 1 to 4 define the mobile unit
code,
– Bit 5 serves as a control (Parity Bit).
Bit 6 controls the volume of inflowing
water and the circulation pump for
mobile units with side coupling (WAK).
Its settings cannot be altered.
Mobile units without side coupling are
coded with tracks which do not contain
Bit 6.
Automatic mobile unit recognition (Optional)
18

Mobile unit coding strip
15 different codes can be set. They are
assigned to programme places 1 to 15.
Under "System function, Selector switch
organisation" the matching
programmes have to be put into the
first 15 programme places.
Programme
place
Bit
1
Bit 2 Bit 3 Bit 4 Bit 5
Parity
Bit
-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
I
0
I
0
I
0
I
0
I
0
I
0
I
0
I
0
0
I
I
0
0
I
I
0
0
I
I
0
0
I
I
0
0
0
0
I
I
I
I
0
0
0
0
I
I
I
I
0
0
0
0
0
0
0
0
I
I
I
I
I
I
I
I
0
I
I
0
I
0
0
I
I
0
0
I
0
I
I
0
The coded total must be an even
number.
The settings on Bit 6 (WAK) are not
included in this calculation.
If the coded total gives an odd number,
the message CHECK MOBILE UNIT
RECOGNITION appears.
If the mobile unit code equals 0, the
message NO MOBILE UNIT
RECOGNITION appears. In neither
case can the programme be started,
The mobile unit recognition function
must be re-set.
Setting mobile unit coding
To set or alter the coding of a mobile
unit with automatic recognition (AWK),
proceed as follows:
^Unscrew the track with AWK (using
an allen key) and remove from the
retainer.
^Remove the magnetic strip from the
track.
Automatic mobile unit recognition (Optional)
19

^Set the programme place coding.
^Put the magnetic strip back in the
track.
The magnetic strip must be placed
in the track such that the Bit coding
set out in the chart is visible through
the round windows in the track.
^Place the track in the holder in the
mobile unit and screw firmly in place.
Bit 6 (WAK) is not a component part
of the modifiable magnetic strip.
Make sure that you code mobile
units with side connection with a
track where Bit 6 is set to I.
Mobile units without side coupling
must be coded with a track without
Bit 6.
The magnetic strips on G 7823 /
G 7824 / G 7825 / G 7826 must have
grey magnets.
The magnetic strips on G 7827 /
G 7828 must have black magnets.
Automatic mobile unit recognition (Optional)
20