Miele G 7835 CD Operating instructions

Operating instructions

Washer-disinfector
G 7835 CD

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.

en - GB, AU, NZ

M.-Nr. 07 776 420

Contents

Warning and safety instructions .....................................4

Correct application ...............................................4

Symbols on the appliance .........................................8

Intended Use .....................................................9

Guide to the machine .............................................11

Controls .........................................................12

Opening and closing the door ......................................14

Electro-thermal door lock............................................14

To open the door with the emergency release ...........................14

Water softener ...................................................15

Setting the water softener ...........................................16

Salt indicator .....................................................16

Filling the salt reservoir .............................................16

Automatic mobile unit recognition (AWK).............................18

Mobile unit coding .................................................19

Mobile unit coding strip ..........................................20

Setting mobile unit coding ........................................20

Areas of application...............................................22

Protein test .......................................................22

Loading the machine ...............................................23

Water connection spring adapter .....................................24

Height adjustable top basket.........................................24

Surgical instruments (OP) ...........................................25

Ophthalmology ...................................................26

Anaesthetic instruments (AN) ........................................27

Baby bottles (BC) .................................................28

Operating theatre shoes (OS) ........................................29

Laboratory glassware (LG) ..........................................30

Chemical processes and technology.................................31

Dispensing liquid chemical agents ..................................36

Preparing the DOS dispensers .......................................36

Fill the containers with the relevant agent ............................37

Venting the dispensing system .......................................38

Dispensing system maintenance......................................38

External Dispensing systems.........................................38

Operation .......................................................39

Switching on .....................................................39

2

Contents

Changing the operating level ........................................39

Starting a programme ..............................................40

Programme sequence ..............................................41

Switching off .....................................................41

Cancelling a programme ............................................42

Interrupting a programme ...........................................42

Data transfer.....................................................44

Maintenance .....................................................45

Periodic checks ...................................................45

Process validation .................................................46

Routine checks ...................................................46

Cleaning the filters in the wash cabinet.................................47

Cleaning the coarse filter .........................................47

Cleaning the coarse, flat and micro-fine filters.........................48

Cleaning the spray arms ............................................49

Cleaning the control panel...........................................50

Cleaning the front of the machine .....................................50

Cleaning the wash cabinet ..........................................50

Cleaning the door seals.............................................50

Mobile units, baskets and inserts .....................................51

Drying unit (TA) - Maintenance .......................................52

Changing the coarse filter ........................................52

Changing the fine filter ...........................................53

Problem solving .................................................54

Thermal cut-out ...................................................54

Cleaning the filters in the water inlet ...................................55

Cleaning the drain pump and non-return valve...........................56

After sales service ................................................57

Installation ......................................................58

Electrical connection .............................................60

Plumbing........................................................61

Connection to the water inlet .........................................61

AD water connection (pressurised) ü 0.6 - 10 bar over pressure ..........62

Optional AD water connection (without pressure) 0.085 - 0.6 bar ..........62

Drainage ........................................................63

Technical data ...................................................64

Disposal of your old machine.......................................65

3

Warning and safety instructions

This machine is not designed for
This machine complies with all
relevant local and national safety
requirements. Please note that
incorrect use can lead to personal
injury and damage to property.
To avoid the risk of accidents and
damage to the machine, please
read these instructions carefully
before starting to use it. Keep these
instructions in a safe place for
reference, and pass them on to any
future user.

Correct application

This washer-disinfector is designed

~

for use with the applications described
in these Operating Instructions only.
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,
medical devices and laboratory
equipment 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.
Miele cannot be held liable for damage
caused by improper or incorrect use or
operation of the machine.

This machine is intended for indoor

~

use only.

~

use in mobile installations unless 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.

This machine should be

~

commissioned and then maintained by
a Miele authorised and trained service
technician only. A Miele service
contract is recommended to ensure
compliance with GLP Guidelines and
the Medical Devices Directive.
Unauthorised repairs could be
dangerous, for which the manufacturer
cannot be held liable.

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 present and
regularly tested, and where there is any
doubt the on-site wiring 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).

A damaged or leaking machine

~

could be dangerous and compromise
your safety. Disconnect the machine
from the mains immediately and call the
Miele Service Department.

4

Warning and safety instructions

Personnel operating the appliance

~

should be trained regularly. Untrained
personnel must not be allowed access
to the machine or its controls.

Take care when handling chemical

~

agents such as cleaning agent,
neutralising agent, rinsing agent etc.
These may contain irritant or corrosive
ingredients.
Please follow the manufacturer's safety
instructions. Wear protective gloves
and goggles. With all chemical agents,
the manufacturer's safety instructions
and safety data sheets must be
observed.

The machine is designed for

~

operation with water and recommended
additive chemical agents only. Organic
solvents and flammable liquid agents
must not be used in this machine.
These could cause an explosion,
damage rubber and plastic
components in the machine, and cause
liquids to leak out of the machine.

The water in the cabinet must not be

~

used as drinking water.

Do not sit or lean on an open door.

~

The machine could tip up and be
damaged or cause an injury.

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
vapours.

Where there is a risk of toxic or

~

chemical substances occuring in the
suds solution (e.g. aldehyde in the
disinfecting agent), it is essential to
regularly check door seals and make
sure that the steam condensor is
functioning correctly.
Opening the machine door during a
programme interruption carries
particular risks in such circumstances.

Should personnel accidentally come

~

into contact with toxic vapours or
chemical agents, follow the emergency
instructions given in the manufacturer's
safety data sheets.

Mobile units, modules, inserts and

~

the load 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 the everything in
the cabinet from the load itself to the
mobile units, modules and inserts to
cool down.

Do not touch the heating elements if

~

you open the door during or directly
after the end of a programme; you
could burn yourself. They remain hot for
some time after the end of the
programme.

5

Warning and safety instructions

Never clean the machine or near

~

vicinity with a water hose or a pressure
washer.

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 devices 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.

If it is necessary to interrupt a

~

programme in exceptional
circumstances, this may only be done
by authorised personnel.

The standard of cleaning and

~

disinfection in the disinfection
programmes must be routinely
confirmed by the user. The process
should be validated on a regular basis,
and checked against documented
control results. Chemical disinfection
procedures should also be validated
using chemical 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 chemical
disinfection procedures is the
responsibility of the operator.

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. In the event of any
damage or material deterioration
please contact your Miele application
specialist.

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 result.

6

Warning and safety instructions

Foam must not be able to escape

~

from the wash cabinet. It would hinder
the correct functioning of the machine.

Check the machine regulary during

~

use to monitor foaming.

To avoid the risk of damage to the

~

machine and any accessories used
with it caused by chemical agents,
soiling and any reaction between the
two please read the notes in "Chemical
Processes and Technology".

Where a chemical agent 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.

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, baskets and inserts

~

should only be used for the purpose
they are designed for.
Hollow instruments must be thoroughly
cleaned, internally and externally.

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).

When using cleaning agents and

~

specialised products it is essential that
the manufacturer's instructions are
followed. Chemicals must only be used
for the purpose they are designed for
and in the situation specified, to the
exclusion of other chemicals, to avoid
such dangers as chemical reactions
and material damage.

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.

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.

After carrying out any work on the

~

mains water system, the water supply
system to the washer-disinfector must
be vented.
Otherwise, the components in the
machine may become damaged.

Please follow the advice on

~

installation in these instructions and the
separate Installation Instructions.

7

Warning and safety instructions

Using accessories

Only use genuine Miele original

~

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, mobile units and inserts
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.

Only use chemical agents which

~

have been approved by their
manufacturer for use in the application
you are using. The chemical agent
manufacturer is responsible for any
negative influences on the material the
load is made from and for any damage
they may cause to the machine.

Disposing of your old machine

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, so that
children cannot accidentally shut
themselves in. Then make appropriate
arrangements for its safe disposal.
For tank system machines ensure that
any water is emptied out of the tank.

The manufacturer cannot be held
liable for damage caused by
non-compliance with these Warning
and Safety instructions.

Symbols on the appliance

Warning:
Observe the operating
instructions.

Warning:
Danger of electric shock.

8

Intended Use

This washer-disinfector can be used to
clean, rinse, disinfect (thermally and
chemically) and dry a wide range of
reusable medical devices and
laboratory equipment.
Follow the medical product
manufacturer's instructions (according
to EN ISO 17664) on how to process
their items by machine.

Examples of application areas:

surgical instruments,

–

minimally invasive surgical

–

instruments,

– anaesthetic and intensive care

instruments,

– baby bottles and teats,

– operating theatre shoes,

or

– laboratory equipment used in

research and development,

–

laboratory equipment used in areas
of analysis and specimen taking,

–

laboratory equipment used in
micro-biology and biotechnology.

The type of laboratory equipment which
can be processed ranges from
evaporating dishes to centrifugal test
tubes.

Processing medical devices and
laboratory equipment by machine
achieves reproducible results, and
should be used in preference to
processing them by hand.
Where disinfection is required for the
protection of staff and/or patients, a
thermal disinfection programme, e.g.
the DESIN vario TD programme, should
be selected.
The parameters for thermal disinfection
according to EN ISO 15883-1 (A

0

concept) vary depending on the
disinfection standard required. They
are 80 °C (+ 5 °C, - 0 °C) with a 10 min
holding time (A

600) or 90 °C (+ 5 °C,

0

- 0 °C) with a 5 min holding time
(A

3000). An A0value of 3000 is

0

suitable for deactivating the HBV virus.

National health and safety regulations
regarding disinfection must also be
observed.

The cleaning programme as well as any
chemical agents must be chosen
according to the type of soiling and
load being processed.
The agents used for processing the
products should be selected to suit the
level of cleaning required as well as the
method of analysis used.

9

Intended Use

The cleaning result must ensure that
instruments can be disinfected
correctly, that no residues are left
behind, that subsequent sterilisation
can be carried out and that the
instruments can be used again safely.
Medical devices are best reprocessed
using the DESIN vario TD programme.

The use of a suitable carrier (mobile
unit, module, insert etc.) is important to
ensure the adequate cleaning of the
load. Examples are given in the section
"Areas of application".

The washer-disinfector is programmed
to carry out the final rinse with mains
water or with processed water of a
quality to suit the application (e.g. aqua
destillata, purified water, de-ionised
water, demineralised water). The water
quality is of particular importance for
applications requiring analytically clean
laboratory glassware.

This machine complies with EN ISO
15883 for validation purposes.

10

Guide to the machine

a Drying unit (TA)

b Reservoir for neutralising agent (red)

and liquid cleaning agent (blue)

c Filter combination

d Salt reservoir (for the water softener)

e Service panel

f Test point for validation

at the back of the machine:

g Connections for optional DOS

module K 60 dispenser pump for
neutralising agent (white) and
dispenser pump for chemical
disinfecting agents (green)

h Serial interface (top left behind the

cover panel)

11

Guide to the machine

Controls

12

a Display

with screen saver;
i.e. background lighting switches off automatically after
15 mins. Press any button to switch the display back on
again.

Faults occurring during operation are shown in the display.
They are listed in a chart in the Programming manual.

b On/Off button (I-0)

c Cursor button: left 1

Moves the cursor to the left:
– to the previous menu point
– to the previous parameter
– to the previous input position

Guide to the machine

d Cursor button: right 2

Moves the cursor to the right:
– to the next menu point
– to the next parameter
– to the next input position

e Minus 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

f Plus 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

g Door switch 5

h Start button 6

– Starts programmes
– Activates input mode
– Confirms activated values and settings
– Confirms menu points for entry into the relevant

sub-menu

i Stop button 7

– Cancels a programme
– Exits from input screen without saving
– Exits from menu screen

j Service interface 8

kProgramme selector

Selects programme places 1-23

13

Opening and closing the door

Electro-thermal door lock

This machine is equipped with an
electro-thermal door lock.

The door can only be opened when:

the electricity supply to the machine

–

is switched on,

the master switch I-0 is pressed in,

–

and

a cleaning or disinfection programme

–

is not in progress.

To open the door

^ Press the 5 door button, and holding

onto the door grip open the door.

Do not touch the heating

,

elements if you open the door 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.

To open the door with the
emergency release

The emergency release should only
be used when the door cannot be
opened normally, e.g. in the event of
a power failure.
Important note for DESIN
programmes - read the notes in the
Warning and Safety instructions!

Switch the machine off with the I-0

^

button.

To close the door

^

Lift the door upwards and push until
it clicks shut.

14

^

The emergency release cable is
located at the bottom of the machine
behind the service panel. Pull it
downwards to open the door.

Water softener

In order to achieve good cleaning
results, the washer-disinfector needs to
operate with soft water. Hard water
results in the build-up of calcium
deposits on instruments, etc, and in the
washer-disinfector.
Mains water with a hardness level
higher than 0.7 mmol/l (4° d – German
scale) needs to be softened. This takes
place automatically in the integrated
water softener.

The water softener requires

–

reactivation salt.

The washer-disinfector must be

–

programmed to correspond to the
water hardness in your area.

– Your local water authority will be able

to advise you on the water hardness
in your area.

The water softener is set ex-works for a
hardness level of 3.4 mmol/l or 19°d.

If the water supply is harder or softer
than this (including below 0.7 mmol/l
or 4 °d) the factory setting will need
to be changed following the
instructions in "Setting the water
softener" in the Programming
Manual.

For fluctuating levels e.g.8-17°d
(1.4 - 3.1 mmol/l) set the water softener
to the highest setting. In this example to
17 °d (3.1 mmol/l).

The built-in water softener has
settings from 1 °d - 60 °d (0.2 -

10.8 mmol/l).

For future servicing it is useful to make
a note of your water hardness level.

Enter your water hardness level here:

°d (German scale)

or mmol/l

15

Water softener

Setting the water softener

See "Operating information ­Reactivating the water softener" in the
Programming Manual supplied with the
machine.

Salt indicator

Reactivation salt will need to be
replenished when the NO SALT
indicator lights up in the display.

Reactivation takes place automatically
during a programme.
The programme sequence indication
light REACTIVATION lights up whilst
this is happening.

Filling the salt reservoir

Please only use special coarse grained
reactivation salt with granules of
approx. 1-4 mm. Do not use other types
of salt, e.g. table salt, agricultural or
gritting salt. These could contain
components which are insoluble in
water which could result in damage to
the water softener. If in doubt consult
the Miele Professional Department.

The salt reservoir holds approx. 2.5 kg
of salt.

Inadvertently filling the salt

,

reservoir with cleaning agent will
damage the water softener.
Before filling the salt reservoir make
sure that you have picked up the
right packet of reactivation salt.

^ Remove the bottom basket from the

machine.

^ Unscrew the salt reservoir cap.

16

Important:
Before filling the salt reservoir with
dishwasher salt for the first time, you
must fill it with approx. 2.5 litres of
water to enable the salt to dissolve.
Once the dishwasher has been
used, there is always sufficient water
in the reservoir.

Place the funnel provided in place.

^

^ Fill carefully with salt.

As it is poured in, displaced water will
run out.

Water softener

Select service programme REMOVE

^

SALT to flush out any traces of salt
from the cabinet.

If, after switching on the REMOVE
SALT programme, the start is
delayed for a few minutes this is not
a fault. The water softener is being
reactivated.

^

Wipe any residual salt off the screw
connection and seal on the salt
reservoir.

^

Screw the cap on firmly.

17

Automatic mobile unit recognition (AWK)

In operating level C the automatic

Before starting a programme it is

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.

,

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.

18

Automatic mobile unit recognition (AWK)

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 (as long as there are no
residues or particles on the magnetic
strip).

,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.

Coding is effected through 5 Bits:

Bits 1 to 4 define the mobile unit

–

code,

– Bit 5 serves as a control (Parity Bit).

Press 6 to start the programme.

19

Automatic mobile unit recognition (AWK)

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

10
11
12
13
14
15

Bit 1 Bit 2 Bit 3 Bit 4 Bit 5

0

­1
2
3
4
5
6
7
8
9

0

0

I

I

0

I

I

0

0

0

I

I

0

I

I

0

0

0

I

I

0

I

I

0

0

0

I

I

0

I

I

Parity

Bit

0

0

0
0
0
0

I
I
I

I
0
0
0
0

I

I

I

I

I

0

I

0

0

0

I

0

0

0

0

0

I

0

I

I

0

I

0

I

I

I

0

I

I

I

I

I

0

I

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.

The coded total must be an even
number.

If the coded total gives an odd number
the message CHECK MOBILE UNIT
RECOGNITION appears.
If the mobile unit total equals 0, the
message NO MOBILE UNIT
RECOGNITION will appear. In neither
case can the programme be started,
and the mobile unit recognition function
will have to be re-set.

20

^

Remove the magnetic strip from the
track.

Automatic mobile unit recognition (AWK)

Set the programme place coding.

^

Place the track in the holder in the

^

mobile unit and screw firmly in place.

The magnetic strip on the G 7835
and on the G 7836 must have grey
magnets.

^

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.

21

Areas of application

This washer-disinfector can be fitted
with a variety of mobile units, which can
be equipped with a variety of modules
and inserts depending on the type and
shape of items requiring cleaning and
disinfection.

Select mobile units, baskets and
inserts which are appropriate for the
application.

Notes on the individual areas of
application and examples of loading
are given on the following pages.

Before starting a programme you
should carry out a visual check on
the following:

– Is everything correctly

loaded/connected for cleaning?

– Are the spray arms clean and do

they rotate freely?

–

Are the filters clean? Remove any
coarse soiling and clean them
properly if necessary.

At the end of each programme:

Carry out a visual check of the load

–

for cleanliness.

Check that all hollow shafted

–

instruments are still securely located
on their jets.

Any hollow instruments that have

,

become disconnected from their
adapters during processing must be
re-processed.

Check that the lumen of hollow

–

instruments are free of obstruction.

– Check that jets and connectors are

securely held in position in the
baskets or inserts.

Protein test

Cleaning results should be subjected to
periodic protein tests, e.g. with the
Miele test kit.

–

Is the adapter connecting the water
supply to the spray arms/jets
correctly connected?

–

Are all chemical containers
sufficiently filled?

22

Loading the machine

Arrange the load so that water can

–

access all surfaces. This ensures
that it gets properly cleaned.

Do not place items to be cleaned

–

inside other pieces where they may
be concealed.

Hollow instruments must be

–

thoroughly cleaned, internally and
externally.

Ensure that instruments with long

–

narrow hollow sections can be
flushed through properly before
placing them in inserts or connecting
them to jets.

– Hollow vessels should be inverted

and placed in the correct mobile
units, modules and inserts to ensure
that water can flow in and out of
them unrestricted.
A cover net can be used to reduce
the risk of glass breakage during the
wash process.

–

Lightweight items should be secured
with a cover net (e.g. an A 6) and
small items placed in a mesh tray to
prevent them blocking the spray
arms or being attracted by the
magnetic strip on the automatic
mobile unit recognition system.

Areas of application

Modules must be correctly

–

connected in the mobile unit.

The spray arms must not be blocked

–

by items which are too tall or which
hang down in their path. If in doubt,
test for free movement by manually
rotating the spray arms.

It is advisable to use only instruments

–

made of special application steel
which are not susceptible to
corrosion.

Instruments which cannot withstand

–

high temperatures should be
chemically disinfected.

Disposable instruments must not

,

be put into the machine for
processing.

Preparing the load

Empty all containers before loading into
the machine (paying particular attention
to regulations regarding infectious
diseases and epidemics).

,

Ensure that acids and residual
solvents, especially hydrochloric
acid or chlorides, cannot get into the
wash cabinet.

–

Deep-sided items should be placed
at an angle to make sure water runs
off them freely.

–

Tall, narrow pieces should be placed
in the centre of the baskets. This
ensures good water coverage.

–

Mobile units with an adapter must
engage correctly.

Unloading instruments

Instruments should be unloaded dry
ready for further processing.

23

Areas of application

Water connection spring
adapter

Make sure that the water connection
spring adapter engages correctly when
a basket or injector unit is inserted in
the machine. It must be 4-5 mm higher
than the water connection inlet in the
machine. If it is not:

^ Loosen lock ring a.

Height adjustable top basket

The top basket can be adjusted above
and below the middle position by 2 cm.

Different height items can be
processed in this machine depending
on the position the top basket is set at
and the inserts used in the baskets /
mobile units.

To adjust the top basket:

Pull out the top basket until a

^

resistance is felt; lift from the runners
and remove.

^ Unscrew the roller bearings on both

sides of the basket witha7mm
spanner and reposition as required.

^ Push up adapter b.

^

Tighten lock ring c.

24

Areas of application

Surgical instruments (OP)

Surgical instruments should be stored
for as short a time as possible before
machine processing.

Disinfection of surgical instruments and
of those used for minimally invasive
surgery should preferably take place
thermally.
De-ionised water should be used for
the final rinse whenever possible to
ensure no marks are left on the load
and to avoid corrosion. If the water
used contains more than 100 mg
chloride/litre there is danger of
corrosion.

Open up hinged instruments and place
them in mesh trays so that they are not
touching each other.

Mobile units for surgical instruments
are supplied with their own
operating instructions.

When processing narrow lumen

instruments e.g. those used for
minimally invasive surgery,an

intensive internal cleaning result is
imperative. The vario-TD programme is
the only one suitable to ensure
thorough cleaning of these instruments.
It is essential that instruments are
loaded as directed and that the
cleaning agent used is suitable for the
programme and for the sensitive
instruments being processed.
The final rinse must be carried out
using de-ionised water with a
conductivity level of ~15 ZS/cm
(microsiemens per centimeter).

Instruments with very narrow lumen
must be manually pre-rinsed where
necessary. Follow the instrument
manufacturer's instructions on how
to handle them.

25

Areas of application

Ophthalmology

The E 429 mobile injector unit is
designed for the cleaning and
disinfecting of ophthalmic instruments.

The top level is fitted with various
connections for hollow instruments, e.g.
rinsing and suction hand pieces, and
cannulae.

Instruments are secured to the hose
connectors in the mobile injector unit
using the silicone holders and
connectors in the rack.

The lower level of the mobile injector
unit is designed to take E 441/1 inserts
or E 142 mesh trays for processing
solid instruments.

The mobile injector unit for
ophthalmic instruments is supplied
with its own operating instructions.

When the E 429 is used, the

,

lower water supply to the
washer-disinfector has to be
changed in accordance with the
guidelines in the operating
instructions for the E 429.
For this reason it is not possible to
use the E 429 alternately with other
units/baskets.

Plastic fibre cover nets must not

,

be used in washer-disinfectors
which are used to process hollow
ophthalmic instruments with narrow
lumen.

26

Anaesthetic instruments (AN)

Anaesthetic instruments should be
thermally disinfected using the
DES-VAR-TD-AN programme.

If this is not possible, they can be
processed using a chemical
disinfection programme. The water
level in the machine should be
increased when using a chemical
disinfection programme. To establish
the effectiveness of disinfection, consult
the manufacturer of the disinfecting
agent being used.

If the process is not to be followed
by sterilisation, the load should be
dried completely to avoid the
development of water-borne
bacteria.
A sufficient drying time is, therefore,
absolutely essential.

Areas of application

Mobile units for anaesthetic
instruments are supplied with their
own operating instructions.

27

Areas of application

Baby bottles (BC)

Baby bottles can be processed in
E 135 containers, wide-necked teats in
an E 364 insert and screw connection
teats in an E 458 insert.

Ensure the level marker on the

–

bottles is dishwasher proof.

If there is a delay of 4 hours or more

–

before bottles can be washed, fill
them with water to prevent residues
from drying on.

If the process is not to be followed
by sterilisation, the load should be
dried completely to avoid the
development of water-borne
bacteria.
A sufficient drying time is, therefore,
absolutely essential.

Inserts for baby bottles and teats are
supplied with their own operating
instructions.

28

Operating theatre shoes (OS)

Polyurethane operating theatre shoes,
and/or insoles should be cleaned and
chemically disinfected at 60 °C. These
can only be thermally disinfected (using
programme SHOE-TD-75/2) if the
manufacturer states that they are made
of a suitably heat-resistant material.

To establish the effectiveness of
chemical disinfecting agents for
disinfection, consult the manufacturer.

Theatre shoes should be cleaned
and disinfected in a machine

installed specifically for this
purpose only.

Use the following baskets:

– O 167 for theatre shoes up to size

40,

Areas of application

– O 173 for theatre shoes up to size

41, and

– U 168/1 for theatre shoes up to size

45.

Alternatively insert E 484 can be used
in a suitable bottom basket, e. g. U 874
together with holder E 487 for shoes or
E 489 for insoles.

A large amount of fluff can build up
in the machine when cleaning
theatre shoes. The filters in the wash
cabinet should therefore be
checked regularly, and cleaned
when necessary. See "Maintenance".

29

Areas of application

Laboratory glassware (LG)

Wide-necked laboratory glassware,
e. g. beakers, wide-necked Erlenmeyer
flasks and Petri dishes, and cylindrical
shaped items e. g. test tubes, can be
cleaned and rinsed, internally and
externally, by the action of the rotating
spray arms. They can be arranged in
full, half and quarter inserts in an empty
bottom or top basket with spray arms.
Narrow-necked items e.g.
narrow-necked Erlenmeyer flasks,
conical flasks, measuring flasks and
pipettes, require mobile injector units or
injector modules.

The following instructions relate only to
basic preparation and loading of
glassware.

Loading the machine

Removing excess soiling

^ Empty all glassware before loading

into the machine (paying particular
attention to regulations regarding
epidemics).

Remove all stoppers, corks, labels,

^

sealing wax residues, etc.

Small parts - such as stoppers and

^

taps - should be secured in suitable
basket inserts.

Please note

Petri dishes and similar should be

^

placed in the correct insert with the
soiled side facing the centre.

Pipettes should be placed with the

^

mouthpiece facing upwards.

Quarter inserts should be placed in

^

the mobile unit with at least 3 cm
between them and the edge of the
mobile unit.

,

Ensure that no acid or solvent
residues, especially hydrochloric
acid or chlorides, get into the wash
cabinet.

^

Remove all agar residues from Petri
dishes.

^

Remove blood clots and residues
from test tubes, etc.

30

E 350 Mobile injector unit 1/1
(E 380 with connection for drying
unit TA)

For narrow necked laboratory
glassware with 32 (33) jets/clips.

Chemical processes and technology

General notes

Problem How to resolve it

If seals, hoses and plastics in the
washer-disinfector suffer damage they
will not be water-tight and will not
function correctly.

Heavy foaming during a programme
affects cleaning and rinsing results.
Foam escaping from the wash cabinet
can cause damage to the
washer-disinfector.
Cleaning processes cannot be
regulated and validated where there
has been a build-up of foam..

Corrosion to stainless steel in the wash
cabinet and to accessories can give
them a different appearance:

– Rust (red marks / discolouration),
– black marks / discolouration,
– white marks / discolouration (etched

surface).

Corrosive pitting can lead to the
washer-disinfector not being
water-tight. Depending on application
corrosion can influence cleaning and
rinsing results (laboratory analysis) or
cause corrosion to stainless steel items
in the cabinet.

Establish the cause of the damage

–

and rectify it.

See information regarding "Chemical
agents“, "Soiling“ and "Reaction
between chemical agents and soiling“.

Establish the cause of the foam and

–

rectify it.
Check the process used regularly to

–

monitor foaming levels.

See information regarding "Chemical
agents“, "Soiling“ and "Reaction
between chemical agents and soiling“.

– Establish the cause of the corrosion

and rectify it.

See information regarding "Chemical
agents“, "Soiling“ and "Reaction
between chemical agents and soiling“.

31

Chemical processes and technology

Chemical agents

Problem How to resolve it

The ingredients in chemical agents
have a strong influence on the longevity
and functionality (throughput) of the
dispensing system. The dispensing
system (hoses and pumps) should be
set up for a particular type of chemical
agent.

General types:

Alkaline to pH neutral products,

–

acidic to pH neutral products,

–

hydrogen peroxide.

–

Chemical agents can damage
elastomers and plastics in the
washer-disinfector and accessories.

The following oxidising chemical agents
can damage elastomers (hoses and
seals) and plastics in the
washer-disinfector:

–

Nitric acid,

–

peracetic acid,

–

products containing active chlorine.

Use Miele approved chemical agents

–

in this machine.
Carry out a regular visual check of

–

the dispensing system for any
damage.

Regularly check the flow rate of the

–

dispensing system.

– Use Miele approved chemical agents

in this machine.

– Carry out a regular visual check of

any accessible elastomers and
plastics for damage.

The wash temperature should be
limited to:

– 50 °C Nitric acid,
– 35 °C with peracetic acid,
–

80 °C with products containing
active chlorine.

The following chemical agents can
release large amounts of oxygen:

–

Hydrogen peroxide,

–

peracetic acid.

32

–

Only use approved processes such
as OXIVARIO or OXIVARIO PLUS.

–

The wash temperature must be less
than 70 °C when using hydrogen
peroxide.

–

Please contact Miele Service or your
Miele Application Professional for
advice.

Chemical processes and technology

Chemical agents

Problem How to resolve it

The following chemical agents can
cause large amounts of foam to build
up:

Cleaning agents and rinsing agents

–

containing tensides,
emulsifiers.

–
Foam can occur:

in the programme block in which the

–

chemical agent is dispensed,
in the following programme block if it

–

has been spilt,

– in the following programme with

rinsing agent if it has been spilt.

De-foaming agents, especially silicone
based ones can cause the following:

– Deposits to build up in the cabinet,
– deposits to build up on the load,
– damage to elastomers and plastics

in the washer-disinfector,

– damage to certain plastics (e.g.

polycarbonate and plexiglass) in the
load being processed.

Process parameters in the wash

–

programme, such as dispensing
temperature, dosage concentration
etc. must be set to ensure the whole
process is foam free or very low
foaming.

Please observe chemical agent

–

manufacturer's instructions.

– De-foaming agents should be used

in exceptional cases only, for
instance when absolutely essential
for the process.

– The wash cabinet and accessories

should be periodically cleaned
without a load and without
de-foaming agent using the
ORGANICA programme.

–

Please contact Miele Service or your
Miele Application Professional for
advice.

33

Chemical processes and technology

Soiling

Problem How to resolve it

The following substances can damage
elastomers (hoses and seals) and
plastics in the washer-disinfector:

Oil, wax, aromatic and unsaturated

–

hydrocarbons,
emollients,

–

cosmetics, hygiene and care

–

products such as creams (analytical
applications).

The following substances can lead to a
heavy build-up of foam during washing
and rinsing:

– Some disinfecting agents and

dishwashing detergents,

– reagents for analysis e.g. for

microtiter plates,

–

cosmetics, hygiene and care
products such as shampoos and
creams (analytical applications),

–

active foaming agents such as
tensides.

Refit the washer-disinfector with oil

–

resistant elastomeres.
Depending on usage wipe the lower

–

door seal on the washer-disinfector
periodically with a lint-free cloth or
sponge.
Clean the wash cabinet and
accessories without a load using the
ORGANICA programme.

Prepare the load

–

using the "OIL" programme (where
this is available) or use a special
programme that dispenses
emulsifiers.

– Thoroughly rinse items in water

beforehand.

– Select a cleaning programme with at

least one short pre-rinse in cold or
hot water.

– Depending on application use

de-foaming agents that do not
contain silicone oils.

The following substances cause
corrosion to stainless steel in the wash
cabinet on accessories:

–

Hydrochloric acid,

–

other substances containing
chlorides such as sodium chloride
etc.,

–

concentrated sulphuric acid,

–

chromic acid,

–

Particles of iron and swarf.

34

–

Thoroughly rinse items in water
beforehand.

–

Place items drip dried into mobile
units, baskets and inserts and then
place these in the wash cabinet.

Chemical processes and technology

Reaction between chemical agents and soiling

Problem How to resolve it

Natural oils and fats can be emulsified
with alkaline chemical agents. This can
lead to a heavy build-up of foam.

Soiling containing high protein levels
such as blood can cause a heavy
build-up of foam when processed with
alkaline chemical agents.

Non-precious metals such aluminium,
magnesium and zinc can release
hydrogen when processed with very
acidic or alkaline chemical agents
(oxyhydrogen reaction).

Where available use the "OEL“

–

programme.
This special programme dispenses

–

emulsifiers (pH neutral) in the
pre-rinse.

Depending on application use

–

de-foaming agents that do not
contain silicone oils.

Select a cleaning programme with at

–

least one short pre-rinse in cold
water.

– Please observe chemical agent

manufacturer's instructions.

35

Dispensing liquid chemical agents

Preparing the DOS dispensers

Only use agents formulated

,

specifically for use in
washer-disinfectors and make sure
you follow the manufacturer’s
instructions.

This machine is fitted with 2 dispensers
as standard:

Dispensing system DOS 1 (blue) to

–

dispense liquid cleaning agent. It
can dispense up to 120 ml/min.

– Dispensing system DOS 3 (red) to

dispense acid media such as
neutralising agent or rinsing agent. It
can dispense up to 20 ml/min.

Additional optional DOS modules:

– Dispensing system DOS 2 (white) to

dispense acid media such as
neutralising agent.
It can dispense 20 ml/min.

The agents can be filled into 5 l plastic
containers, which are colour coded for
the relevant dispensing system.

When first commissioning, or when the
message FILL DOS 1 CONTAINER
and/or DOS 2, 3, 4 flashes in the
display after switching on or at the end
of a programme, fill the storage
container with the relevant agent.
If the message CHECK DISPENSING
SYSTEM 1 and/or CHECK DISPENSING
SYSTEM 4 flashes in the display, check
the storage containers, dispensing
tubes and pipes, and refill if empty. The
programme will stop automatically.

When first commissioning or when
the message CHECK DISPENSING
SYSTEM... appears, start the
DOS-FILL Programme to vent the
dispensing system (see "Venting the
Dispensing system").

–

Dispensing system DOS 4 (green) for
low-foaming disinfecting agents
suitable for machine use, or for an
additional cleaning agent. It can
dispense up to 120 ml/min.

The correct amount of liquid agent etc.
required for the application chosen will
then be dispensed through these
dispensing systems.

36

,

Take great care when handling
liquid agents and additives. These
may contain irritant or corrosive
ingredients.
Please follow the manufacturer’s
safety instructions.
Wear protective gloves and
goggles.

Dispensing liquid chemical agents

Fill the containers with the relevant
agent

Switch the machine off.

^

Open the door on the control unit to

^

access the liquid supply containers.

^ Take the storage containers out,

open them and fill with the agent
required, (observe the colour code).

Please remember to refill containers
in good time. Do not let them get
empty. It is best to refill them as
soon as the FILL DOS 1, 2, 3 or 4
message appears in the display. If a
container is not being used, the level
query for the unused dispensing
system can be turned off to avoid
the error message (see "Machine
functions/Dispensing/Query
container" in the Programming
Manual supplied with the machine).

^ Insert the siphon tube into the

container and screw on securely
(observe the colour code).

Once the storage containers have been
filled the relevant message goes out.

37

Dispensing liquid chemical agents

Venting the dispensing system

Before the washer-disinfector is first
commissioned, and later on if one or
more containers has been allowed to
run dry, the dispensing system(s) for
liquid media will need to be vented. To
do this:

Press the I-0 button.

^

Select operating level B.

^

Select as required:

^

Programme DOS1-FILL
Programme DOS2-FILL
Programme DOS3-FILL
Programme DOS4-FILL.
(See "Operation/B. Free programme
selection).

^ Press the Start button 6.

The DOS-FILL Service Programmes
are allocated to programme places
58-61 ex works, but can be
re-allocated to other programme
places, if preferred.

Dispensing system
maintenance

To ensure trouble-free operation, the
following regular maintenance should
be carried out by a Miele approved
service technician.

Every 12-18 months

Replace the hoses in the dispensing
system(s).

External Dispensing systems

If external pumps are to be used for
dispensing liquid agents, please inform
the Miele Service Department. The
instructions given in the Programming
Manual under "Machine functions" will
need to be observed.

38

Switching on

Open the stopcocks (if turned off).

^

Press the I-0 button.

^

In operating levels A, B and D the most
recently selected PROGRAMME NAME
appears in the display and in operating
level C, AUTOMATIC MOBILE UNIT
RECOGNITION is displayed.

Changing the operating level

There are four operating levels
available on this machine:

A = Fixed and free access
programmes

Operation

Enter code when requested by the

^

display.
The code is set ex-works to ü0000<.
To enter the code:
– Press the start button 6,

[0000] will appear

– Enter numbers using the 4 and

3 buttons

– Select number position with the

1 or 2 button

To confirm code press 6.

^

If you enter the wrong code:
FALSE CODE, PLEASE ENTER AGAIN
will appear in the display

^ Close the door.

B = Free programme selection

C = AWK – Automatic mobile unit
recognition (programme selection
via mobile unit coding) - optional

D = Programming / free programme
selection / change code
(see Programming manual)

To change operating level:

^

Press 1 and 2 at the same time.
Operating levelsABCDareshown
in the display.

^

Select the operating level you want
using the 1 or 2 buttons.

^

Press 6 to confirm selection.

Selecting or changing your own
code See "System functions" in the

Programming Manual:
Code 1 for levels ABC
Code 2 for levels ABCD

39

Operation

Starting a programme

See the Programme charts in the
Programming Manual supplied with
the machine for detailed information
and important notes on the standard
Miele programmes.

When processing medical

,

devices, any changes made to
programmes or dispensing systems
must be documented in a log book
kept with the machine (in
accordance with the Medical
Devices directive). The machine's
cleaning and disinfecting standards
must also be re-validated.

A. Fixed programme

Set up fixed programme(s) once in
operating levels B or D and for free
access in operating level A (see
"System functions, Programmes under
A free access" in the Programming
Manual).

^

Select operating level A.

^

Check in the display that the
programme shown is the one
required.
If several fixed programmes have
been made freely accessible, select
the one required using the
programme selector.

^

Press the Start button 6.

B. Free programme selection

1. Programme places1-23canbe

selected using the Programme selector.

Turn the programme selector to the

^

required programme.
The programme name will appear in
the display.

2. Programmes above place 24 are
selected using the 4 and 3 keys.

Turn the programme selector to 24.

^

Press 4 (scrolls forwards) until the

^

required programme is shown.

Press 3 (scrolls back) until the

^

required programme is shown.

3. The PROGRAMME SURVEY menu
lists all stored programmes. A
programme can be selected from this
menu.
To do this:

^ Select Programme Survey with 1

and confirm with 6.

^ Select a programme using 1 or 2.

^

Press 6 to confirm selection.

This exits the Programme Survey, and
the selected programme is shown in
the display.

After selecting one of the three options
above:

^

Press the Start button 6; the
programme proceeds.

For further information on programme
selection see "Operating Level B" in the
Programming Manual.

^

Select operating level B.

In operating level B there are three
ways of selecting a programme.

40

Operation

C. AWK – Automatic mobile unit
recognition

Select operating level C.

^

Push the coded mobile unit into

^

place.

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.

^ Close the door.

Before starting a programme it is

,

absolutely essential to check that
the programme shown in the display
is the correct on 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.

Programme sequence

The programme will start automatically
as soon as the Start button has been
pressed. It is finished when
PROGRAMME END appears in the
display and the background lighting
flashes (press any button to switch off
the flashing lights).
See "System functions" in the
programming manual for further
information on switching off the flashing
signal.

Detailed information on programme
sequences is given in the appendix
of the Programming Manual.

The display background lighting
goes out automatically after approx.
15 mins. To bring it back on again,
press one of the buttons.

Switching off

^

Press and release the I-0 button.

^

Press the Start button 6.

^

Turn off the stopcocks.

41

Operation

Cancelling a programme

A programme can only be cancelled
in operating level B or D.

When testing to EN ISO 15883-1 or
HTM 2030 standards, the
programme must not be interrupted
or cancelled.

In operating levels B or D

Press the Stop button 7. The

^

programme is
interrupted.>>CANCEL< or
>CONTINUE< will appear in the
display.

With established

,

decontamination programmes the
contaminated water must be
decontaminated before it is
discharged into the sewerage
system. The door can then be
opened.

^

Use cursor 1 to select üCANCEL<;
the ü < cursors will start flashing.

Interrupting a programme

A programme can only be
interrupted in operating level B or D.

If you absolutely have to open the door,
e.g. because the load is obviously
unstable (conscious intervention):

After interrupting a DESIN
disinfection programme, if you wish
to continue it please check the
message in the display at the end of
the programme. If the message
PROCESS PARAMETERS NOT MET
is displayed, it means the door was
opened after the disinfection part of
the programme and the DESIN
parameters were not fulfilled. If
necessary the programme must be
repeated.

In operating levels B or D

^ Press the Stop button 7. The

programme is
interrupted.>>CANCEL< or
>CONTINUE< will appear in the
display.

^

Press the Start button 6. The
programme is cancelled and the
water pumped away. DRAIN WATER
appears in the display.

^

After the water has been pumped
away the required programme can
be selected and started again.

42

^

Open the door.

,

Warning. Water and items in the
machine may be hot. Danger of
burning or scalding.
Where a chemical disinfection
programme has been used, be
aware that steam may contain high
quantites of disinfecting agent.

Rearrange the load. Follow infection

^

control regulations and wear
protective gloves.

Close the door slowly.

^

If a great deal of hot water is

,

present in the wash cabinet when
the programme is interrupted and
the door is then closed quickly, hot
water can escape.
Danger of burning or scalding.

Press the Start button 6 to continue

^

the programme.

Operation

43

Data transfer

There is a 9-pole sub-D socket on the
back of the machine for data transfer
between the Profitronic unit and an
external report printer or a PC.

The serial interface is RS 232
compatible.

Various printers can be used as
external printers:

Epson-compatible

–

(contact Miele for a list of suitable
models).

HP Laserjet

–

For the interface configurations see
"PC/Printer Function" in the
Programming manual.

Pin configuration in the 9-pole sub-D
connector at the back of the machine:
5 GND(base)
3 TXD (transmit)
2 RXD (receive)
1-4-6 (linked)
7-8 (linked)

Please note the following when
connecting a printer or PC:

Only use an industry-standard PC or

–

printer (e.g. in Germany TÜV, or VDE
approved - IEC 60950).

The size of the printer or PC

–

must be taken into account when
installing the machine.

The report printer settings are
described in detail in the Programming
manual under "PC/Printer function".

A standard null-modem or laplink cable
can be connected.

The extension cable to the printer/PC
must not exceed 13 m.

44

Maintenance

Periodic checks

This washer-disinfector should be
inspected in accordance with local and
national safety regulations after every
1000 operating hours, or every 6
months by a Miele approved service
technician.

This maintenance will cover the
following:

Electrical safety tests

–

Door mechanism and door seal

–

Any screw connections and

–

connectors in the wash cabinet

– Water inlet and drainage

– Internal and external dispensing

systems

– Spray arms

– Filter combination

– Sump including drain pump and

non-return valve

The following operational tests will be
carried out within the framework of the
maintenance:

A programme will be run as a test

–

run

Thermo electrical measurements will

–

be taken

Seals will be tested for water

–

tightness

All relevant measuring systems will

–

be safety tested including error
message displays.

–

Steam condenser

–

All mobile units, baskets and inserts

and where applicable:

–

The drying unit

–

Any printer connected to the
machine

45

Maintenance

Process validation

The standard of cleaning and
disinfection in the disinfection
programmes must be confirmed by the
user as a routine matter.
In the UK safety checks must be
carried out to the machine every 3
months by a Miele approved service
technician in accordance with EN ISO

15883 and HTM 2030.

Routine checks

Before the start of each working day the
user must carry out a number of routine
checks. A check list is supplied with the
machine for this purpose.

The following need to be inspected:

All filters in the wash cabinet

–

The spray arms in the machine and

–

in any mobile units or modules

The wash cabinet and the door seal

–

Mobile units, baskets and inserts

–

46

Maintenance

Cleaning the filters in the wash
cabinet

The filters in the base of the wash
cabinet are designed to prevent coarse
soiling getting into the circulation
system.
A build-up of coarse soiling can cause
the filters to clog up. They should,
therefore, be checked daily and
cleaned if necessary.

This machine must not be used

,

without all the filters in place.

Watch out for glass splinters,

,

needles etc. which could cause
injury.

Cleaning the coarse filter

^ Press the two lugs together, remove

and clean the coarse filter.

^ Put the clean filter back in position

and press until it clicks in place.

47

Maintenance

Cleaning the coarse, flat and
micro-fine filters

Remove the coarse filter.

^

Remove the fine filter (if fitted) from

^

between the coarse and the
micro-fine filters.

^ To unscrew the micro-fine filter, take

hold of the two lugs and turn twice in
an anti-clockwise direction.

Then remove together with the flat

^

filter.

^ Clean the filters.

^ Replace the filters by carrying out the

above steps in the reverse order.
Ensure that the flat filter sits flat in the
base of the wash cabinet.

48

Maintenance

Cleaning the spray arms

The spray arms can become blocked
and should therefore be checked every
day.

Use a sharp pointed object to push

^

particles into the spray arm jets, and
rinse well under running water.

Remove the spray arms as follows:

Take any baskets out of the wash

^

cabinet.

Spray arm on top basket or mobile unit
(if present):

^ Loosen the nut on the spray arm and

take the spray arm off.

Metal nuts have a left-hand thread.
Ceramic nuts have a right-hand
thread.

Unscrew the upper spray arm.

^

Loosen the knurled thumb nut to

^

unscrew the lower spray arm.

After cleaning the spray arms, fit or

^

screw them back into position.

After replacing the spray arms,
check that they rotate freely.

49

Maintenance

Miele offer a range of branded cleaning
products. These are available from your
Miele retailer, the Spare Parts
Department, or via the internet on
www.miele-shop.com.

Cleaning the control panel

The control panel should only be

^

cleaned using a damp cloth or with a
proprietary cleaning agent for glass
or plastic surfaces.
An approved and listed disinfecting
agent can be used to wipe surfaces.

Do not use abrasive cleaners or

,

all-purpose cleaners.
Because of their chemical
composition they could cause
serious damage to plastic
components.

Cleaning the front of the
machine

Never clean the machine or near

,

vicinity with a water hose or a
pressure washer.

Cleaning the wash cabinet

The wash cabinet is generally
self-cleaning.

However, should a build-up of deposits
occur in the cabinet please contact the
Miele Service Department for advice.

Cleaning the door seals

The door seals should be cleaned
regularly with a damp cloth to remove
any soiling.

Seals which are no longer tight or which
have suffered damage must be
replaced with new ones by the Service
Department.

^ The front should be cleaned using a

damp cloth and a little washing-up
liquid, or with a non-abrasive
proprietary cleaning agent designed
for use on stainless steel.

^

To help prevent fingermarks etc. a
stainless steel conditioning agent can
also be used.

,

Do not use any cleaning agents
containing ammonia or thinners as
these can damage the surface
material.

50

Maintenance

Mobile units, baskets and
inserts

Mobile units, baskets and inserts
should be checked daily to make sure
they are functioning correctly. The
washer-disinfector is supplied with a
check list.

The following need to be inspected:

Check that rollers on mobile units/

–

inserts are free of hindrance and that
they are secure.

Check that the mobile unit connector

–

is at the correct height and screwed
on correctly.

– Check that the locking caps in the

module connectors of modular
system mobile units are working
properly.

– Check that jets, sleeves and hose

adapters are securely held in
position in mobile units/inserts.

and where applicable:

Make sure that the spray arms rotate

–

freely.

Make sure the spray arm jets are free

–

of any blockages. See "Cleaning the
spray arms".

Make sure that there are no small

–

metallic objects sticking to the
magnetic strip on a mobile unit.

Make sure the magnetic strip on

–

mobile units with automatic mobile
unit recognition is correctly screwed
into position.

–

Check that wash liquor can flow
unhindered through all jets, sleeves
and hose adapters.

–

Make sure caps and closures on
sleeves are correctly located.

51

Maintenance

Drying unit (TA) - Maintenance

The CHANGE TA COARSE and
CHANGE TA FINE service
programmes have been allocated to
programme places 62 and 63
ex-works. If required, they can be
moved to other programme places.
See "System functions" in the
Programming manual.

Changing the coarse filter

The coarse filter should be changed
when the message CHANGE COARSE
FILTER flashes in the display.

^ Open the front of the control unit

cabinet.

^ Replace the coarse filter. The soft

side of the filter must face the front.

^ Replace the filter grille and push it

upwards to secure it.

^ Close the front of the control unit

cabinet.

After the coarse filter has been
changed, reset the operating hours
counter to zero, as follows:

^

Remove the filter grille from the
drying unit.

52

^

Select the CHANGE TA COARSE
programme.

^

Press the Start button 6.

When the service programme has
ended, a message will appear in the
display.

^

To üCONTINUE< press 6.

Changing the fine filter

The HEPA filter should be changed
when the message CHANGE FINE
FILTER flashes in the display.

To ensure the machine operates
correctly, use original Miele HEPA
filters only (classification 13).

It is advisable to have the fine filter
changed whenever the machine is
serviced.

If it needs changing before this:

^ Open the front of the control unit

cabinet.

Maintenance

Pull the HEPA filter out of it holder

^

and replace it with a new one.

^ Replace the coarse filter housing and

swing the securing screws back
downwards.

^ Tighten the securing screws.

^ Close the front of the control unit

cabinet.

^

Loosen the top securing screws on
the coarse filter housing and swing it
upwards.

^

Remove the coarse filter housing.

After the HEPA filter has been changed,
reset the operating hours counter to
zero, as follows:

^

Select the Programme CHANGE TA
FINE (see Operation: B - Free
programme selection).

^

Press the Start button 6.

When the service programme has
ended, a message will appear in the
display.

^

To üCONTINUE< press 6.

53

Problem solving

Thermal cut-out

This machine has a resettable heater
limiter which will shut off the heating
elements in the event of over-heating.
This could be caused, for example, by
large articles covering the heating
elements or if the filters in the wash
cabinet are blocked.

If the message "Check wash cabinet
heating" appears (water has not heated
up in the wash cabinet and the
programme is taking too long), proceed
as follows:

^ Remove the cause of the fault.

^ Take off the service panel.

^ Press the reset button on the heater

limiter located on the right-hand side
of the plinth.

If this switch trips again contact the
Miele Service Department.

54

Problem solving

Cleaning the filters in the water
inlet

Filters are incorporated in the screw
connection of the water inlet hose to
protect the water inlet valve. If these
filters get dirty they need to be cleaned,
otherwise insufficient water flows into
the wash cabinet.

The plastic housing of the water

,

connection contains an electrical
component. It must not be dipped in
water.

To clean the filter

Disconnect the machine from the

^

mains electricity supply

Turn off the stopcock and unscrew

^

the water inlet hose.

^ Clean the large area filter (1) and fine

filter (2), and replace with new filters
if necessary.

^ Replace filters and the seal. Make

sure they are sitting correctly.

^

Reconnect the inlet hose to the
stopcock, making sure it goes on
correctly and is not cross-threaded.

^

Open the stopcock gradually to test
for leaks.

If water leaks out the connection may
not be tight enough or the hose may
have been connected incorrectly.

^

Reconnect the hose correctly and
tighten it.

55

Problem solving

Cleaning the drain pump and
non-return valve

If water has not been pumped away at
the end of a programme the drain
pump or the non-return valve might be
blocked. They are however, easy to
clean.

Take the filter combination out of the

^

wash cabinet.

Release the locking clamp.

^

The drain pump is situated under the
non-return valve (see arrow).

^ Before replacing the non-return valve

check that the drain pump is free of
obstructions.

^ Carefully replace the ron-return valve

and secure with the locking clamp.

For safety reasons the load should
be cleaned and disinfected again.

^

Lift up the non-return valve and rinse
under running water.

56

Repairs should only be carried

,

out by a suitably qualified and
trained Miele technician in
accordance with local and national
safety regulations. Unauthorised or
incorrect repairs could cause
personal injury or damage the
machine.

After sales service

If, having followed the advice in the
operating instruction manual and in the
programming manual, you are still
unable to resolve a problem please call
the Miele Service Department (see
back cover for contact details).

When contacting Miele, please quote

^

the model and serial number of your
machine

To avoid unnecessary service call-outs,
check that the fault has not been
caused by incorrect operation.

An overview of all error messages
that can appear in the display are
given in the Programming manual
under "Messages".

These are located on the data plate
(see "Electrical connection").

57

Installation

This machine should be connected
to the mains water supply in
accordance with local and national
water regulations. Please refer to the
installation diagram supplied with
the machine.

Furniture and fittings installed

,

near the machine must be of a
commercial standard able to
withstand the effects of steam and
condensation.

The machine must be installed correctly
and levelled.

Any unevenness in the floor level can
be compensated for and the height of
the machine raised or lowered by
adjusting the four screw feet.

When the feet are screwed in, the
machine can be moved backwards and
forwards on rollers.

The machine can be installed in the
following ways:

Free-standing. *)

–

Slot-in or at the end of a row: *)

–

The machine can be installed next to
other machines or furniture or in a
suitable niche. The niche must be at
least 90 cm wide and 70 cm deep.

*) A machine lid is essential with this
type of installation (available as a
special accessory).

The machine can be installed under

–

a continuous worktop or sink drainer.
Niche dimensions must be at least
90 cm wide, 70 cm deep and 82 cm
high.

Depending on the requirements for
building under, the following kits can be
ordered from the Miele Spares Dept.:

Cover plate (protects the worktop)

The underside of the worktop is
protected against steam rising from the
machine by a special cover plate.

58

Important for machines fitted with a
steam condenser (depending on
model):

To prevent damage by steam to the
worktop, the self adhesive protective
foil supplied (25 x 58 cm) must be
stuck in place underneath the worktop
above the steam condenser.

Level and secure the machine

If fitted under a continuous worktop the
machine must first be aligned and then
screwed to the worktop.

^ Open the door. Secure the machine

to the front edge of the worktop using
screws through the holes on the left
and right hand sides of the front trim.

Installation

^ Do not use silicone sealant to seal

the gaps between the machine and
any neighbouring units as this would
hinder ventilation to the circulation
pump.

59

Electrical connection

All electrical work must be

,

carried out by a suitably qualified
and competent person in
accordance with current local and
national safety regulations (BS7671
in the UK).

Connection should be made via a

–

suitable isolator, with an on-off switch
which is easily accessible for
servicing and maintenance work
after the machine has been installed.
An electrical safety test must be
carried out after installation and after
any servicing work. It is therefore
essential that the on-off switch is
easily accessible.

This device is intended for connection
to a power supply system where the
maximum value of external phase
neutral loop impedance of 0.45 Ohms
at the point of distributor supply
connection is not exceeded. If in doubt,
please ask your electrical distributor for
actual value. The user has to ensure
that this device is connected only to a
power supply system which fulfils the
requirement above.

The machine must only be operated
with the voltage, frequency and fusing
shown on the data plate.

This machine can be converted in
accordance with the conversion
diagram and wiring diagram supplied.

– When switched off there must be an

all-pole contact gap of at least 3 mm
in the isolator switch.

– Equipotential bonding must be

carried out.

– For extra safety it is advisable to

protect the machine with a suitable
residual current device.

–

The mains connection cable may
only be replaced by an original Miele
spare part or an appropriate cable
with wire end ferrules.

–

For technical data see data plate or
wiring diagram supplied.

The conversion diagram and data
plate with test certification (VDE, DVGW
etc.) are located on the rear of the
machine, and on the plinth (behind the
service panel).

The wiring diagram is supplied with
the machine.

WARNING
THIS APPLIANCE
MUST BE EARTHED

Bonding connection

There is a screw connection point
marked with the earth symbol (
the back of the machine, to which the
earth lead must be connected.

8)at

60

Connection to the water inlet

The water in the machine must

,

not be used as drinking water.

The machine must be connected to

–

the water supply in accordance with
local and national water authority
regulations.

If the water supply has a high iron

–

content there is a danger of
corrosion occuring on items being
processed in the machine, as well as
in the machine itself.
If the chloride content of the water
exceeds 100mg/l the risk of
corrosion to items being processed
in the machine will be further
increased.

– This machine is constructed to

comply with German water
regulations (DVGW), and may be
connected to a suitable supply
without an extra non-return valve if
national regulations permit.

–

The minimum flow pressure for a
cold and hot water connection is
80 kPa (0.8 bar) and with an AD
water connection it is 60 kPa
(0.6 bar).

–

The recommended flow pressure
for a cold and hot water connection
is 0 250 kPa (2.5 bar) and for an AD
water connection is 0 150 kPa
(1.5 bar). Otherwise fill times will be
too long.

Plumbing

The maximum permitted static

–

water pressure is 1000 kPa (10 bar).

If the water pressure is not in the

–

range specified above, please
contact the Miele Service
Department for advice.
(The message "CHECK WATER
INLET" may light up in the display)..

The machine is supplied as standard

–

for connection to a cold (coded blue)
and a hot (coded red) water supply
up to a max. temperature of 70 °C.
The inlet hoses should be connected
to the stopcocks for the hot and cold
water supplies. The steam
condenser inlet hose (without
waterproof connector) should be
connected to the cold water
stopcock.

– If a hot water supply is not available

the inlet hose coded red should also
be connected to the cold water
stopcock. AD-water connection
(marked H

–

Stopcocks with 3/4 BSP male thread
are to be provided on site. They
should be easily accessible so that
the water supply can be turned off
when the machine is not in use.

–

The DN 10 inlet hoses are approx.

1.7 m long terminating in a 3/4 inch
female thread. On no account must
the inlet filters be removed.

O pur) see next page.

2

61

Plumbing

Large surface area filters are

–

enclosed in the kit supplied with the
machine for installing between the
stopcock and the inlet hose (see
illustration in Problem solving ­"Cleaning the filters in the water
inlet"). The large surface area filter is
made from chrome nickel steel and
can be recognised by the matt top
surface.

AD water connection (pressurised)
ö 0.6 - 10 bar (60 - 1000 kPa) over
pressure

The machine is supplied as standard
for connection to an AD water supply of

0.6 - 10 bar (60 - 1000 kPa). If the water
pressure (flow rate) is below 1.5 bar
(150 kPa) the water intake time is
automatically extended.

The AD pressure tested hose

^

(marked "H
threaded union must be connected to
the on-site AD stopcock for purified
water.

Note: If the machine is not going

,

to be connected to an AD water
supply, the cleaning and
disinfecting programmes will have to
be altered by a Miele Service
technician.
The inlet hose will remain on the rear
of the machine.

O pur") with a 3/4"

2

,

The inlet hoses must not be
shortened or damaged in any way
(see illustration).

See also the installation diagram
supplied.

62

Optional AD water connection
(without pressure) 0.085 - 0.6 bar
(8.5 - 60 kPa)

The appliance must be converted
(special accessory) (if this has not
already been done at the factory)
before connecting to a water supply

0.085 - 0.6 bar (8.5 - 60 kPa). The feed
pump must be fitted by a Miele service
technician only.

When connecting an AD water
container (without pressure) the drain
connection must be at least the height
of the upper edge of the machine (see
"Installation instructions").

Drainage

The drainage system is fitted with a

–

non-return valve which prevents dirty
water from flowing back into the
machine via the drain hose.

The machine should preferably be

–

connected to a separate drainage
system on-site.
If separate drainage is not available,
contact your Miele application
specialist for professional advice.
The on-site drain connection point
should be sited between 0.3 m and
1mabove the lower edge of the
machine.
If it is lower than 0.3 m, lay the hose
in a curve at a height of at least

0.3 m.
The drainage system must be able to
take a minimum drainage flow of
16 l/min.

Plumbing

– The drain hose is approx. 1.4 m long,

is flexible and has an internal
diameter of 22 mm. It must not be
shortened.
Hose clips are supplied for securing
it in position.

–

A longer drain hose (up to 4 m long)
is available to order from the Miele
Spare Parts Dept.

–

The drainage system must not
exceed 4 metres.

See also the installation diagram
supplied.

63

Technical data

Height with lid
Height without lid

85 cm

82 cm
Width 90 cm
Depth

Depth with door open

70 cm

126.5 cm
Weight (net) 120 kg
Voltage, connected load, fuse rating See data plate
Mains cable Approx. 1.7 m
Water temperature: Cold water
Hot and AD water

max. 20 °C
max. 70 °C

Static water pressure Max. 1000 kPa (10 bar) pressure
Minimum flow pressure:

Cold/hot water inlet connections
AD water connection

80 kPa pressure
60 kPa pressure

Recommended flow pressure:
Cold/hot water inlet connections
AD water connection

0 250 kPa pressure
0 150 kPa pressure

AD-water connection (non-pressurised) optional, 8.5-60 kPa (0.085-0-6 bar)
Delivery head min. 0.3 m, max. 1 m
Steam condenser Approx.2-4l/min
Ambient temperature 5 °C to 40 °C
Relative humidity

Decreasing proportionately to
Altitude Max. 1500 m

80 % for temperatures to 31 °C
50 % for temperatures to 40 °C

#

Degree of soiling P2 (according to IEC/EN 61010-1)
Protection category (according to IEC

IP20 (Dust permeation)

60529)
Noise level in dB (A), Sound level LpA

<70

during cleaning and drying phases
Test marks VDE, radio interference suppression
! mark MDD-Guidelines 93/42/EWG, Class IIb
Manufacturer's address Miele & Cie. KG, Carl-Miele-Str. 29,

33332 Gütersloh, Germany

#

If installed at altitudes above 1500 m the boiling point of the suds solution will be lower.
Disinfecting temperature parameters should be lowered and the holding time increased
(A0value). This must be done by a Miele authorised service technician.

64

Electrical and electronic machines
often contain materials which, if
handled or disposed of incorrectly,
could be potentially hazardous to
human health and to the environment.
They are, however, essential for the
correct functioning of your or machine.
Please do not therefore dispose of it
with your general waste.

Please dispose of it at your local
community waste collection / recycling
centre or contact your dealer for
advice. Ensure that it presents no
danger to children while being stored
for disposal.

Disposal of your old machine

656667

Alteration rights reserved / Publication date 11.01.2010

0366

M.-Nr. 07 776 420 / 00