Miele PG 8504 User manual

Operating instructions
Commercial dishwasher for laboratory
glassware and utensils
PG 8504
To avoid the risk of accidents or
damage to the machine, it is
essential to read these instructions
before it is installed and used for the
first time.
en - GB, AE, AU, IE, NZ
M.-Nr. 10 089 650

Contents
2
Notes about these instructions.......................................................................................... 5
Intended use ........................................................................................................................ 6
User profiles .......................................................................................................................... 8
Guide to the machine .......................................................................................................... 9
Overview................................................................................................................................ 9
Control panel ....................................................................................................................... 10
LEDs in the buttons ............................................................................................................. 11
Warning and Safety instructions...................................................................................... 12
Symbols on the machine..................................................................................................... 18
Using the machine............................................................................................................. 19
Display illustrations.............................................................................................................. 19
Switching on........................................................................................................................ 20
Switching off........................................................................................................................ 20
Automatic switch-off (Auto-Off function)............................................................................. 20
Display interface .................................................................................................................. 21
Menu operation ................................................................................................................... 21
Symbols in the display ........................................................................................................ 22
Menu operation ................................................................................................................... 23
Options............................................................................................................................ 23
Commissioning.................................................................................................................. 24
Installation and connection ................................................................................................. 24
Procedure ............................................................................................................................ 24
Opening and closing the door.......................................................................................... 28
Opening the door................................................................................................................. 28
Closing the door .................................................................................................................. 28
Water softener ................................................................................................................... 29
Water hardness.................................................................................................................... 29
Setting the water hardness level ......................................................................................... 30
Filling the salt reservoir........................................................................................................ 32
Add salt reminder ................................................................................................................ 34
Areas of application .......................................................................................................... 35
Mobile units, baskets, modules and inserts........................................................................ 35
Adjusting the upper basket ................................................................................................. 37
Preparing the load ............................................................................................................... 39
Wash load............................................................................................................................ 42
...wide necked ................................................................................................................. 42
...narrow necked.............................................................................................................. 42
Chemical processes and technology .............................................................................. 43
Adding and dispensing chemical agents ........................................................................ 47
Using chemical agents ........................................................................................................ 47
Dispensing systems............................................................................................................. 47
Labelling the siphons ...................................................................................................... 47
DOS modules ...................................................................................................................... 48
Connecting a DOS module ............................................................................................. 48
Dispensing liquids ........................................................................................................... 48

Contents
3
Dispensing neutralising agent or rinsing agent ................................................................... 49
Neutralising agent ........................................................................................................... 49
Rinsing agent .................................................................................................................. 49
Filling the reservoir .......................................................................................................... 50
Cleaning agent..................................................................................................................... 52
Refilling liquid cleaning agent.......................................................................................... 52
Refill indicator.................................................................................................................. 53
Dispensing liquid cleaning agent .................................................................................... 53
Dispensing powder cleaning agent................................................................................. 54
Operation............................................................................................................................ 56
Selecting a programme ... ................................................................................................... 56
Starting a programme.......................................................................................................... 56
Starting a programme using delay start.......................................................................... 56
Programme sequence indicator .......................................................................................... 58
At the end of the programme .............................................................................................. 58
Cancelling a programme ..................................................................................................... 59
Programme cancelled due to a fault ............................................................................... 59
Cancelling a programme manually.................................................................................. 59
Settings ........................................................................................................................... 60
Delay start............................................................................................................................ 61
DOS venting ........................................................................................................................ 62
Language ......................................................................................................................... 63
Date ..................................................................................................................................... 64
Time of day.......................................................................................................................... 66
Volume................................................................................................................................. 69
Further settings.................................................................................................................. 70
Code.................................................................................................................................... 72
Enter code....................................................................................................................... 72
Release............................................................................................................................ 73
Log book.............................................................................................................................. 75
Temperature unit.................................................................................................................. 76
Moving a programme: allocating programme selection buttons......................................... 77
Additional functions............................................................................................................. 78
Reset ............................................................................................................................... 79
Increased water level....................................................................................................... 80
Interim rinse..................................................................................................................... 80
Dispensing systems ........................................................................................................ 81
Temperature / Time ......................................................................................................... 85
Release programme ............................................................................................................ 87
Water hardness.................................................................................................................... 88
Display: Temperature........................................................................................................... 88
Display brightness and contrast.......................................................................................... 89
Switch off after (Auto-Off function)...................................................................................... 90
Factory default..................................................................................................................... 91
Software version.................................................................................................................. 91
Maintenance....................................................................................................................... 92
Periodic checks ................................................................................................................... 92
Routine checks.................................................................................................................... 93
Cleaning the filters in the wash cabinet............................................................................... 93

Contents
4
Cleaning the spray arms...................................................................................................... 95
Cleaning the machine.......................................................................................................... 97
Cleaning the control panel .............................................................................................. 97
Cleaning the door and the door seal............................................................................... 97
Cleaning the wash cabinet.............................................................................................. 97
Cleaning the door front ................................................................................................... 97
Preventing re-soiling........................................................................................................ 97
Checking mobile units, baskets, modules and inserts........................................................ 98
Problem solving guide....................................................................................................... 99
Technical faults and messages............................................................................................ 99
Dispensing / dispensing systems...................................................................................... 100
Insufficient salt / Water softener........................................................................................ 102
Cancel with fault code....................................................................................................... 103
Process-related faults and messages ............................................................................... 105
Unsatisfactory cleaning and corrosion.............................................................................. 106
Water inlet and drainage.................................................................................................... 108
Noises................................................................................................................................ 109
Remedial maintenance ................................................................................................... 110
Cleaning the drain pump and non-return valve................................................................. 110
Clean the water intake filters ............................................................................................. 111
After sales service ........................................................................................................... 112
Contacting Miele Service................................................................................................... 112
Software version................................................................................................................ 113
Installation........................................................................................................................ 114
Installation and levelling .................................................................................................... 114
Building under a continuous worktop................................................................................ 115
Removing the lid ........................................................................................................... 115
Electromagnetic compatibility ........................................................................................... 116
Electrical connection ...................................................................................................... 117
Equipotential bonding connection..................................................................................... 117
Plumbing........................................................................................................................... 118
Connection to the water supply ........................................................................................ 118
Connecting the drain hose ................................................................................................ 121
Programme chart............................................................................................................. 122
Programme selection and suitable accessories................................................................ 124
Technical data.................................................................................................................. 125
Caring for the environment............................................................................................. 126
Disposal of the packing material ...................................................................................... 126
Disposing of your old machine.......................................................................................... 126

Notes about these instructions
5
Important warnings
Information which is important for safety is highlighted in a thick
framed box with a warning symbol. This alerts you to the potential
danger of injury to people or damage to property.
Read these warning notes carefully and observe the procedural
instructions and codes of practice they describe.
Notes
Information of particular importance that must be observed is
highlighted in a thick framed box.
Additional information and comments
Additional information and comments are contained in a simple
frame.
Operating steps
Operating steps are indicated by a black square bullet point.
Example:
Select an option using the arrow buttons and save your choice with
OK.
Display
Certain functions are shown in display messages using the same font
as that used for the function itself in the display.
Example:
Settings  menu.

Intended use
6
This Miele commercial dishwasher can be used to reprocess
laboratory glassware and laboratory utensils with water based media.
The process includes cleaning and rinsing. Due to the wide variety of
laboratory glassware and laboratory utensils on the market, it may be
necessary in some cases to establish whether it is suitable for
reprocessing in a dishwasher. This will depend on its use and the
type of soiling present. Please also observe information provided by
the manufacturer of the laboratory glassware and laboratory utensils.
Laboratory glassware and laboratory utensils suitable for
reprocessing include a range of items from evaporating dishes to
centrifuge tubes, for example:
– Vessels such as test tubes, beakers, flasks, etc.
– Measuring vessels such as measuring cylinders, volumetric flasks
etc.
– Dishes such as petri dishes, watch glasses, etc.
– Plates such as slides, sequencing plates, etc.
– Small items such as lids, spatulas, magnetic stirring rods, stoppers,
etc.
– Other items such as funnels, pipe/hose pieces, etc.
Pipettes are not included in this list. They are not suitable for
reprocessing in this commercial dishwasher.
Examples of application areas:
– Laboratories in schools, colleges and universities,
– Different areas of inorganic, organic, analytical and physical
chemistry,
– Biology (excluding agriculture soiling).
Laboratory glassware and laboratory utensils for reprocessing are
referred to as the wash load if they are not more closely defined.
Processing conditions must be suitable for the wash load and for the
type of soiling.
Chemical agents must be suitable for the type of soiling and for
methods of analysis being used.

Intended use
7
The use of a suitable carrier (mobile unit, basket, module, insert, etc.)
is important to ensure the adequate cleaning of the load. Examples
are given in the section "Areas of application".
This machine is programmed to carry out the final rinse with mains
water or with processed water of a quality to suit the application (e.g.
purified water, fully demineralised water or demineralised water).
It is particularly important to ensure the appropriate water quality for
the rinse and final rinse of items for analytical purposes.
The machine can be qualified for process validation.
The machine fulfills the requirements of Directive 2006/42/EC on
machinery

Intended use
8
User profiles
Daily operators must be instructed in operating and loading the
machine and trained regularly to guarantee safe daily use. They
require knowledge of machine reprocessing of laboratory glassware
and utensils.
Tasks for daily routine operation are located in the Settings  menu.
This menu is freely accessible to all users.
More advanced tasks, e.g. interrupting or cancelling a programme,
require more detailed knowledge about the machine reprocessing of
laboratory glassware and utensils.
Alterations or adaptations of the machine, e.g. accessories used or
on-site conditions require additional specific knowledge of the
machine.
Validation processes assume specialised knowledge of the machine
reprocessing of laboratory glassware and utensils, of the processes
involved and of applicable standards and legislation.
Administrative processes and settings are allocated to the Further
settings. This is protected from unauthorised access by a code.
Daily operators
Administration

Guide to the machine
9
Overview
aDoor lock
bTest point for performance checks
(Top, front right; only visible with lid
removed)
cUpper machine spray arm
dRails for baskets and mobile units
eLower machine spray arm
fData plate
gReservoir for neutralising agent or rinsing
agent
hSalt reservoir
iDispenser for powder cleaning agent
jFilter combination
kPlinth
lOn the back:
– Second data plate
– Electrical and plumbing connections
– Siphon(s) for external supply
containers
– Connections for external dispensing
modules (DOS modules)
mPlumbing connections for mobile units
and baskets

Guide to the machine
10
Control panel
aOn/Off button
For switching the machine on and off.
b, and buttons
Programme selection buttons.
Can be configured.
cProgramme list button
For accessing the list of all programmes.
dDisplay
User interface and programme sequence display
eand arrow buttons
For navigating within the display
fCancel button
For cancelling a process
(not for cancelling programmes)
gStart/Stop button
For starting or cancelling a programme
hOK button
For selecting or confirming entries in the user interface.
iPC / Optical interface
This is used by Miele service technicians to run diagnostic checks
and can also be used to update programming data in the future.

Guide to the machine
11
LEDs in the buttons
The buttons on the control panel have LEDs (Light Emitting Diodes)
that indicate the status of the machine.
Button LED Status
button ON The machine is switched on.
OFF The machine is switched off.
Programme
selection
buttons
,
and 
ON The respective programme has been
selected. At the end of the programme
the LED will remain lit until a different
programme is selected.
OFF The programme is not selected or the
programme settings are being selected.
button ON A programme has been selected from the
programme list with this button. At the
end of the programme the LED will
remain lit until a different programme is
selected.
OFF No programme has been selected from
the list with this button or the programme
settings are being selected.
Start/Stop
button
ON Programme running
FLASHES
GREEN A programme has been selected but not yet started.
FLASHES
RED A fault has occurred (see "Problem solving guide").
OFF A programme has finished.

Warning and Safety instructions
12
This machine complies with all statutory safety requirements.
Inappropriate use can, however, lead to personal injury and
material damage.
Read these instructions carefully before using it for the first time to
avoid the risk of accidents and damage to the machine.
Keep these instructions in a safe place where they are accessible
to users at all times.
Correct application
 This machine 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 laboratory glassware
and utensils if the manufacturer has stated that they are suitable for
machine reprocessing. Manufacturer's cleaning and maintenance
instructions 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.
Risk of injury
Please pay attention to the following notes to avoid injury
 This machine must be commissioned, serviced and repaired by a
Miele authorised and trained service technician only. To ensure
compliance with Good Laboratory Practice guidelines, Miele repair
and maintenance contracts are recommended. Unauthorised repairs
can pose considerable risks to the user.
 Do not install the machine in an area where there is any risk of
explosion or of freezing conditions.
 In order to reduce the risk of water damage, the area around the
machine should be limited to furniture and fittings that are designed
for use in commercial environments.
 If the machine is built under, it must only be installed under a
continuous worktop run which is firmly secured to adjacent units to
improve stability.
 The electrical safety of this machine can only be guaranteed when
correctly earthed. It is essential that this standard safety requirement
is met. If in any doubt, please have the on-site wiring system tested
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 could be dangerous and
compromise your safety. Disconnect the machine from the mains
immediately and call the Miele Service Department.

Warning and Safety instructions
13
 Personnel operating the machine should be trained regularly.
Untrained personnel must not be allowed access to the machine or
its controls
 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.
 Take care when handling chemical agents. These may contain
irritant, corrosive or toxic ingredients.
Please observe the chemical agent manufacturer's safety instructions
and safety data sheets.
Wear protective gloves and goggles.
 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 it.
This could cause an explosion, damage rubber or plastic components
in the machine and cause liquids to leak out of it.
 The water in the cabinet must not be used as drinking water.
 Take care not to inhale powder agents. Chemical agents can cause
chemical burns in the mouth and throat or lead to asphyxiation.
 Do not lift the machine by protruding parts such as the control
panel or the opened service flap as these could be damaged or torn
off.
 Do not sit or lean on the opened door. This could cause the
machine to 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.
 Broken glass can result in serious injury when loading or
unloading. Broken glass items must not be processed in the machine.
 The machine can get hot when in use. Be careful not to scald or
burn yourself or come into contact with irritant substances when
opening the door.
 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, 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.

Warning and Safety instructions
14
 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.
Quality assurance
The following points should be observed to assist in maintaining
quality standards when processing laboratory glassware and
utensils to avoid damage to the loads being cleaned.
 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 must be routinely
confirmed by the user. The process should be validated on a regular
basis, and checked against documented control results.
 Make sure items being washed are suitable for machine
reprocessing and are in good condition. Plastic items must be
thermally stable. Nickel plated items and aluminium items can be
machine processed using special procedures only.
Items containing iron, and soiling containing residual rust must not be
placed in the cabinet.
 Chemical agents can, in certain circumstances, cause damage to
the machine. Always follow the recommendations of the chemical
agent manufacturer.
In case of damage or doubt about compatibility, please contact
Miele.
 Abrasive substances must not be placed in the machine as they
could cause damage to the mechanical components of the water
supply. Any residues of abrasive substances on items to be washed
must be removed without trace before reprocessing in the machine.
 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 result.
 Processes must be set up such that foam cannot escape from the
wash cabinet. It would hinder the correct functioning of the machine.
 The process used must be monitored on a regular basis by the
supervisor to check 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".

Warning and Safety instructions
15
 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.
 When using a chemical agent it is essential that the manufacturer's
instructions are followed. The chemical agent must only be used for
the application it is designed for and in the situation specified, to
avoid material damage and such dangers as a severe explosive
chemical reaction (e.g. an explosive oxyhydrogen gas reaction).
 Always follow the relevant manufacturer's instructions on storage
and disposal of chemical agents.
 In critical applications where very stringent requirements have to
be met, it is strongly recommended that all the relevant factors for the
process, such as chemical agents, water quality etc. are discussed
with the Miele Application Technology specialists.
 If the cleaning result is subject to particularly stringent
requirements, 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, modules and inserts should only be used for
the purpose they are designed for.
Hollow items must be thoroughly cleaned, internally and externally.
 Secure small and light items with cover nets or place in a mesh
tray for small items, so that they do not block the spray arms.
 Empty any containers or utensils before loading them.
 The amount of residual solvents and acids on items going into the
cabinet should be minimal.
There should be no more than a trace of any solvents with a flash
point of below 21 °C.
 Chloride solutions, in particular hydrochloric acid, must not be
placed in the cabinet.
 Ensure that solutions or steam containing chlorides or hydrochloric
acid do not come into contact with the stainless steel outer casing of
the machine in order to avoid any damage through corrosion.
 After any plumbing work the water pipework to the machine will
need to be vented. If this is not done, components can be damaged.
 The gaps between a built-in machine and adjacent cabinetry must
not be filled with silicone sealant as this could compromise the
ventilation to the circulation pump.

Warning and Safety instructions
16
 Follow the installation instructions in the operating and installation
instructions.

Warning and Safety instructions
17
Safety with children
 Children must be supervised in the vicinity of the machine. Do not
allow children to play with the machine. They could get locked inside
it.
 Children must not use the machine.
 Keep children away from chemical agents. These can cause
burning in the mouth, nose and throat if swallowed, or inhibit
breathing. Keep children away from the machine when the door is
open. There could still be residual chemical agent in the cabinet.
Observe the safety data sheets for the chemical agent and seek
medical advice immediately if a child has swallowed chemical agent
or got it in the eyes.
Using accessories
 Only Miele accessories should be connected to this machine. They
must be suitable for the application they are required for. Consult
Miele for details on the type of accessories that can be used.
 Only use Miele mobile units, baskets, modules and inserts with this
machine. Using mobile units, baskets, modules and inserts made by
other manufacturers, or making modifications to Miele accessories
can cause unsatisfactory cleaning results, for which Miele cannot be
held liable. Any resultant damage would not be covered by the
guarantee.

Warning and Safety instructions
18
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 contamination from blood,
bodily fluids, pathogenic germs, facultative pathogenic germs,
genetically modified material, etc. 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.
Miele cannot be held liable for damage caused by non-compliance
with these Warning and Safety Instructions.

Using the machine
19
Control panel
The machine is operated exclusively by the buttons located on the
stainless steel surfaces either side of the display. The display is not a
touch screen.
A light touch on the relevant button is sufficient to operate the
functions. The buttons can also be pressed and held for approx.
20 seconds.
Display illustrations
All display illustrations shown in these operating instructions are
examples which can be different from the actual display screens
shown.
Short
Temperature
Duration Min30
70°C
The control buttons, with the exceptions of the and the Start/Stop
buttons, are shown next to the display.

Using the machine
20
Switching on
The machine must be connected to the electrical supply.
Press the button until the LED lights up.
After that, the display will show the following:
PG 8504
As soon as the machine is ready for operation, the display changes to
show the last selected programme, e.g.
Short
Temperature
Duration Min30
70°C
If the machine is being used for the first time, or if the factory
settings have been reinstated, some basic parameters, e.g.
language, date, time of day, etc. must first be set. To enable this, the
display automatically changes to the relevant screen.
Switching off
Press the button.
The time of day can optionally be displayed when the machine is
switched off (see "Settings / Time of day").
Automatic switch-off (Auto-Off function)
To save energy the machine has an automatic switch-off function
(Auto-Off function). If the machine is not used for a pre-determined
duration, it switches itself off automatically. Automatic switch-off can
be optionally activated and deactivated (see "Further settings /
Switch off after").
Switch the machine on again using the button.