Miele G 7804 User manual

Operating instructions
Dishwasher for
laboratory glassware
G 7804
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. M.-Nr. 09 234 500
en - GB, AU

Intended use......................................................5
Guide to the machine ..............................................6
Warning and Safety instructions .....................................8
Symbols on the machine .........................................12
Caring for the environment.........................................13
Disposal of your old machine ........................................13
Opening and closing the door ......................................14
Electric door lock ..................................................14
To open the door a............................................14
To close the door ...............................................14
To open the door with the emergency release ...........................14
Water softener ...................................................15
Programming the water softener ......................................15
Filling the salt reservoir .............................................17
Add salt indicator..................................................18
Areas of application...............................................19
Loading the machine ...............................................20
Water connection spring adapter .....................................22
Height adjustable upper basket ......................................22
Laboratory glassware ..............................................23
Chemical processes and technology.................................25
Dispensing chemical agents........................................30
Dispensing neutralising or rinsing agent ................................30
Filling the reservoirs .............................................31
Adjusting dosage ...............................................32
Dispensing neutralising agent via the DOS module (optional).............32
Add neutralising agent indicator ...................................33
Add rinsing agent indicator .......................................33
Adding cleaning agent .............................................34
Dispensing liquid cleaning agents (optional) ..........................34
Dispensing powder cleaning agent .................................34
Operation .......................................................36
Switching on .....................................................36
Selecting a programme .............................................36
Selecting the Drying 3additional function ...........................36
Changing a programme ............................................36
Starting the programme.............................................37
Contents
2

Programme sequence indicators .....................................37
Programme end ...................................................37
Switching off .....................................................37
Cancelling a programme ............................................38
Programme cancellation due to a fault...............................38
Cancelling the programme manually ................................38
Programmable functions...........................................39
The following applies to all programmable functions: ......................39
To activate programming mode ....................................39
To save values and exit from programming mode ......................39
To exit from programming mode without saving .......................39
Dispensing liquid cleaning agent via DOS 1.............................40
Setting the dosage concentration...................................40
Venting the dispensing system.....................................40
Dispensing neutralising agent via DOS 3 ...............................41
Setting the dosage concentration...................................41
Venting the dispensing system.....................................41
Buzzer ..........................................................42
Changing programme parameters ....................................43
Changing the temperature ........................................43
Changing the temperature holding time..............................43
Activating Rinse 2 ...............................................44
Delay start .......................................................45
Resetting to factory default settings ...................................46
Maintenance .....................................................47
Service ..........................................................47
Routine checks ...................................................47
Cleaning the filters in the wash cabinet.................................48
Cleaning the coarse filter .........................................48
Cleaning the flat and micro-fine filters ...............................49
Cleaning the spray arms ............................................50
Cleaning the control panel...........................................51
Cleaning the front of the machine .....................................51
Cleaning the wash cabinet ..........................................51
Cleaning the door seal..............................................51
Dispensing systems................................................51
Baskets and inserts ................................................52
Problem solving guide ............................................53
Contents
3

Other problems ..................................................60
Thermal cut-out ...................................................60
Cleaning the drain pump and non-return valve...........................61
Cleaning the filters in the water inlet ...................................62
After sales service ................................................63
Installing the machine .............................................64
Building the machine under a continuous worktop ........................64
Electrical connection..............................................66
Plumbing........................................................67
Connection to the water inlet .........................................67
AD water connection (pressurised) ö0.6 - 10 bar (60 - 1000 kPa) .........68
AD water connection (non- pressurised) 0.085 - 0.6 bar (8.5 - 60 kPa)
(optional)......................................................68
Drainage ........................................................69
Programme chart .................................................70
Technical data ...................................................72
Contents
4

This Miele dishwasher is specifically
designed for cleaning and rinsing
laboratory glassware which is suitable
for machine reprocessing. Please also
follow the instructions of the glassware
manufacturer.
Examples of application areas:
–laboratory glassware used in
research and development,
–laboratory glassware used in areas
of analysis and specimen taking,
–laboratory glassware used in
micro-biology and biotechnology.
The type of laboratory glassware which
can be reprocessed ranges from
evaporating dishes to centrifugal test
tubes.
Reprocessing glassware by machine
achieves reproducible results and
should be used in preference to
processing them by hand.
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 in the machine for
reprocessing the products should be
selected according to the level of
cleaning required as well as the area of
analysis or analytical method where the
product will be used.
The use of a suitable carrier (mobile
unit, module, insert etc.) is important to
ensure adequate cleaning. Examples
are given in the section "Areas of
application".
The dishwasher 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.
Intended use
5

aOn/Off switch I-0
bDoor release a
cDisplay
dDelay start indicator light
eDrying indicator light
fProgramme start indicator light
gStart button 6
hDrying button 3
i4button to switch between the
displays for:
- actual temperature
- elapsed time
Check/Refill indicators
j8DOS Optical interface for
service technician;
when connected toaG60
DOS module: Add (liquid)
cleaning agent
kHAdd rinsing agent
lwAdd neutralising agent
mkAdd salt
np/6Inlet/drain
oProgramme sequence indicators:
kReactivation
IPre-wash
lMain wash
HInterim rinse / Final rinse
cDrying
rProgramme finished
pProgramme selector
fStop
A SHORT
B MEDIUM
C LONG
6DRAIN
DPRE-RINSE
Guide to the machine
6

aAt the back of the machine:
Connection for DOS-Module
- DOS G 60 for liquid cleaning agent,
- DOS G 10 for neutralising agent
bFilter combination
cSalt reservoir
dDispenser for powder cleaning agent
eDispenser for rinsing agent or
neutralising agent (with dosage
selector)
fLevel indicator for rinsing agent or
neutralising agent
Guide to the machine
7

This dishwasher conforms to current
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. They contain
important information on its safety,
use and maintenance.
Keep these instructions in a safe
place for future reference, and pass
them on to any future user.
Correct application
~This machine is designed for use as
described in these operating
instructions only. Alterations or
conversions to the machine, or using it
for purposes other than those for which
it is designed are not permitted and
could be dangerous. The machine must
only be used for cleaning laboratory
utensils if the manufacturer has stated
that they are suitable for machine
processing. Follow the manufacturer's
instructions. Miele cannot be held liable
for damage caused by improper or
incorrect use of the machine.
~The machine is intended for
stationary, indoor use only.
Please pay attention to the following
notes to avoid injury and damage.
~The dishwasher should be
commissioned and then maintained
and repaired by a Miele authorised and
trained service technician only. A Miele
service contract is recommended to
ensure compliance with GLP
Guidelines. Unauthorised repairs and
other work 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 the machine
can only be guaranteed if correctly
earthed. It is most important that this
basic safety requirement is observed
and regularly tested, and where there is
any doubt, the on-site wiring system
should be inspected by a qualified
electrician. Miele cannot be held liable
for the consequences of an inadequate
earthing system (e.g. electric shock).
~A damaged or leaking machine is
dangerous. Disconnect the machine
from the mains immediately and call the
Miele Service Department.
~Personnel operating the machine
should be trained regularly. Children
and untrained personnel must not be
allowed access to the machine or its
controls.
Warning and Safety instructions
8

~Take care when handling chemical
agents such as cleaning agent,
neutralising agent, rinsing agent etc.
These may contain irritant or corrosive
ingredients. Follow all instructions and
safety procedures carefully. 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.
~Avoid inhalation of powder cleaning
agents. They can cause burning in the
mouth, nose and throat if swallowed, or
inhibit breathing.
~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. Position them in
the machine so that you do not hurt
yourself or create a danger for others.
Sharp items should be placed in
baskets with the pointed ends facing
downwards.
~If the door is opened with the
emergency release cord there is a
danger of burning, scalding or
chemical burning or if disinfecting
agents are being used, 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 condenser 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, baskets, 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.
~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.
~Never clean the machine or near
vicinity with a water hose or a pressure
washer.
Warning and Safety instructions
9

~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 when processing
laboratory glassware:
~If it is necessary to interrupt a
programme in exceptional
circumstances, this may only be done
by authorised personnel.
~Under certain circumstances
chemical agents can cause damage to
the machine. Follow the
recommendations of the chemical
agent manufacturer. In the event of any
damage or material deterioration
please contact Miele.
~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 cleaning process.
~Foam must not be able to escape
from the wash cabinet. It would hinder
the correct functioning of the machine.
~Check the process used regularly to
monitor foaming levels.
~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 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 chemical agents such
as cleaning agent it is essential that the
manufacturer's instructions are
followed. Only use chemical agents for
the purpose they are designed for as
specified by the manufacturer, 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 cleaning agent, water quality etc.
are discussed with Miele.
~If the cleaning and rinsing results
are subject to particularly stringent
requirements (e.g. chemical analysis),
a regular quality control test should be
carried out by the user to ensure that
required standards of cleanliness are
being achieved.
~Mobile units, baskets and inserts
should only be used for the purpose
they are designed for.
Hollow items must be thoroughly
cleaned, internally and externally.
Warning and Safety instructions
10

~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).
~To avoid any corrosion damage,
ensure that solutions or steam
containing hydrochloric acid do not
come into contact with the stainless
steel outer casing of the machine.
~After carrying out any work on the
mains water system, the water supply
system to the machine must be vented.
Otherwise, components of the machine
may become damaged.
~Please follow the advice on
installation in these instructions and the
separate Installation Instructions.
Using accessories
~Only use genuine Miele original
accessories with this machine and only
use them for the purposes they are
designed for. 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 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.
Warning and Safety instructions
11

Symbols on the machine
Warning:
Observe the operating
instructions.
Warning:
Danger of electric shock.
Disposing of your old machine
~Please note that the machine may
have been contaminated by infectious
pathogens, facultative pathogens,
genetically modified material, blood or
other bodily fluids, 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 the safe disposal of
the machine.
The manufacturer cannot be held
liable for damage caused by
non-compliance with these Warning
and Safety instructions.
Warning and Safety instructions
12

Disposal of the packing
material
The transport and protective packing
has been selected from materials which
are environmentally friendly for disposal
and should be recycled.
Ensure that any plastic wrappings,
bags etc. are disposed of safely and
kept out of the reach of babies and
young children. Danger of suffocation.
Disposal of your old machine
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 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.
Caring for the environment
13

Electric door lock
This machine is equipped with an
electric door lock.
The door can only be opened when:
^the electricity supply to the machine
is switched on and
^the On/Off switch I-0 is pressed in.
To open the door a
^Press the door release switch in as
far as it will go, and at the same time
grip the handle and 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. They remain hot for some
time after the end of the programme.
The door cannot be opened after a
programme has been started, and it
remains locked until the end of the
programme. It is still possible to open
the door during the PRE-RINSE Dand
DRAIN 6programmes.
The machine can be programmed (by a
Miele approved service technician) to
open during "Drying".
To close the door
Lift the door upwards and push until it
clicks shut. Do not press the door
release button whilst shutting the door.
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. There is a danger of
burning, scalding and chemical
burning if the door is opened using
the emergency door release cord.
^Turn the programme selector to f.
^Switch the machine off with the
On/Off switch I-0.
^The emergency release cord is
located at the bottom of the machine
behind the service panel. Pull it
downwards to open the door.
Opening and closing the door
14

In order to achieve good cleaning
results, the machine needs to operate
with soft water. Hard water results in the
build-up of calcium deposits on the
load and inside the wash cabinet.
Mains water with a hardness level
higher than 0.7 mmol/l (4° dH – German
scale) needs to be softened. This takes
place automatically in the integrated
water softener.
–The water softener requires
reactivation salt.
–The machine 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.
Where the water hardness fluctuates
e.g. between 1.4 - 3.1 mmol/l (8 -
17 °dH German scale), always
programme the washer-disinfector to
the higher value (17 °dH or 3.1 mmol/l
in this example).
The built-in water softener has
settings from 1 °dH - 60 °dH (0.2 -
10.8 mmol/l).
For future servicing it is useful to make
a note of your water hardness level.
Enter the water hardness below:
°dH
Programming the water
softener
^Switch off the machine.
^Turn the programme selector to f.
^Press 4and 6at the same time,
hold them in and, whilst doing so,
switch the machine on with the I-0
switch.
The current programme status P.... will
appear in the display.
The indicator light p/6will come on.
^Press 3once.
E01 will appear in the display.
^Turn the programme selector one
switch position clockwise (1 o'clock
position).
The number 19 will appear in the
display (the factory water hardness
default setting in °dH, equivalent to 3.4
mmol/l).
^Press 4repeatedly as necessary, or
hold it in until the required value
(degree of hardness in °dH) appears
in the display.
See table on the next page for water
hardness settings in °dH, mmol/l and °f.
Once the number 60 has been
reached, the counter will begin again at
0.
^Press 6.
SP will appear in the display.
^Press 6again.
The setting will now be stored in
memory. The display will clear.
The machine is now ready for use.
Water softener
15

Table of settings
°dH mmol/l °f Setting
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
0.2
0.4
0.5
0.7
0.9
1.1
1.3
1.4
1.6
1.8
2.0
2.2
2.3
2.5
2.7
2.9
3.1
3.2
3.4
3.6
3.8
4.0
4.1
4.3
4.5
4.7
4.9
5.0
5.2
5.4
5.6
5.8
5.9
6.1
6.3
6.5
6.7
6.8
7.0
2
4
5
7
9
11
13
14
16
18
20
22
23
25
27
29
31
32
34
36
38
40
41
43
45
47
49
50
52
54
56
58
59
61
63
65
67
68
70
0*)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 **)
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
°dH mmol/l °f Setting
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
7.2
7.4
7.6
7.7
7.9
8.1
8.3
8.5
8.6
8.8
9.0
9.2
9.4
9.5
9.7
9.9
10.1
10.3
10.4
10.6
10.8
72
74
76
77
79
81
83
85
86
88
90
92
94
95
97
99
101
103
104
106
108
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
*) The "0" setting is only for machines
which do not have a water softener
**) Factory default setting
Water softener
16

Filling the salt reservoir
Only use special coarse grained
reactivation salt with granules of
approx.1-4mm.Donotuseother
types of salt such as cooking salt,
agricultural grade or gritting salt. These
may contain insoluble additives which
can impair the functioning of 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.
Before filling the salt reservoir with
reactivation salt for the first time, you
must fill it with approx. 2.5 litres of
water to enable the salt to dissolve.
Once the machine has been used,
there is always sufficient water in the
reservoir.
^Place the funnel provided in position.
^Fill carefully with salt.
As it is poured in, displaced water will
run out.
Water softener
17

^Remove the funnel and wipe any
residual salt off the seal and the
screw threads on the socket.
^Screw the cap back on firmly.
^Run the PRE-RINSE Dprogramme to
remove any traces of salt from the
cabinet.
The programme sequence may be
delayed for a few minutes after the
start of the PRE-RINSE D
programme. This is not a fault. The
water softener is being reactivated.
Add salt indicator
Reactivation takes place automatically
during a programme.
The programme sequence indicator
light aklights up whilst this is
happening.
^Add salt when the Add salt bk
indicator lights up.
Water softener
18

The dishwasher can be fitted with a top
and bottom basket or a mobile unit.
Various inserts and special baskets are
also available for a wide variety of
items.
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 lumen or necks of hollow
instruments positioned so that water
can access them unhindered?
–Are the spray arms clean and do
they rotate freely?
–Are the filters clean? Remove any
coarse soiling and clean them
properly if necessary.
–Is the adapter connecting the water
supply to the spray arms/jets
correctly connected?
–Are all chemical containers filled
sufficiently?
At the end of each programme:
–Carry out a visual check of the load
for cleanliness.
–Check that all hollow instruments are
still securely located on their jets.
,Any instruments that have
become disconnected from the
adapters during processing must be
reprocessed.
–Are the lumen of hollow items
completely clean and clear of
contamination?
– Check that jets and connectors are
securely held in position in the
baskets or inserts.
Areas of application
19

Loading the machine
Disposable items must not be
processed in the machine.
–Arrange the load so that water can
access all surfaces. This ensures
that they get properly cleaned.
–Do not place items to be cleaned
inside other pieces where they may
be concealed.
–Hollow instruments must be
throughly cleaned, internally and
externally.
– Ensure that items 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 baskets
and inserts to ensure that water can
flow in and out of them unrestricted.
– Deep-sided items should be placed
at an angle to make sure water runs
off them freely.
–Tall, narrow, hollow items should be
placed in the centre of the baskets to
ensure better water coverage.
–Lightweight items should be secured
with a cover net (e.g. an A6) and
small items placed in a mesh tray to
prevent them blocking the spray
arms.
–Mobile units or baskets with an
adapter must engage correctly.
–The spray arms must not be blocked
by items which are too tall or which
hang down in their path.
– It is advisable to use instruments
made of surgical steel only, as these
are not susceptible to corrosion.
– Nickel plated instruments and
coloured anodised aluminium
instruments are not suitable for
machine processing.
– Plastic items must be thermally
stable.
Areas of application
20