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