Miele professional PLW 8505 User manual

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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 – US
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Operating Instruction
LABORATORY GLASSWARE
WASHER
PLW 8505

GENERAL RULES
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Content
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1.GENERAL RULES ............................................................................................................................ 5
1.1Limits of manufacturer’s liability.............................................................................................. 5
1.2Manual validity, contents and conservation............................................................................ 5
2.PRODUCT INFORMATION .............................................................................................................. 6
2.1Intended use, improper use .................................................................................................... 7
2.2Safety instructions................................................................................................................... 8
Correct application .............................................................................................................. 8
Risk of injury ........................................................................................................................ 8
Quality assurance ................................................................................................................ 9
Safety with children ........................................................................................................... 10
Using accessories ............................................................................................................. 11
Disposing of your old machine.......................................................................................... 11
Safety signal used ............................................................................................................. 11
2.3Recommendations for proper operation............................................................................... 12
Training .............................................................................................................................. 13
User profiles ...................................................................................................................... 13
3.INSTALLATION............................................................................................................................... 14
3.1Water connection .................................................................................................................. 14
Inlet water quality .............................................................................................................. 14
Information......................................................................................................................... 15
3.2Electrical connection ............................................................................................................. 16
3.3Adding and dispensing cleaning agents ............................................................................... 17
Presence sensor of cleaning agent ................................................................................... 17
3.4Replacement or refill of cleaning agent................................................................................. 17
3.5Warning ................................................................................................................................. 18
3.6Connecting the drain hose .................................................................................................... 19
Drain cooling...................................................................................................................... 20
3.7Ambient ventilation requirements.......................................................................................... 20
4.CHECKS PRIOR TO START-UP .................................................................................................... 21
4.1Introduction ........................................................................................................................... 21
4.2Checks of safety systems ..................................................................................................... 21
4.3General controls .................................................................................................................... 21
5.USING THE MACHINE................................................................................................................... 22
5.1Checking consumption ......................................................................................................... 22
5.2Opening and closing the door............................................................................................... 22
Opening the door using the emergency release device ................................................... 23
5.3Switching on and off.............................................................................................................. 23

Content
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5.4Preparation ............................................................................................................................ 24
6.CONTROL PANEL AND SYMBOLS USED .................................................................................... 25
6.1Buttons .................................................................................................................................. 25
BUZZER............................................................................................................................. 26
6.2Display ................................................................................................................................... 26
7.PROGRAMS................................................................................................................................... 29
7.1Program blocks ..................................................................................................................... 29
7.2Program chart........................................................................................................................ 30
7.3Start the program .................................................................................................................. 33
8.MACHINE STATUS ........................................................................................................................ 34
8.1Ready for operation............................................................................................................... 34
8.2Program status ...................................................................................................................... 34
8.3Power failure.......................................................................................................................... 34
8.4Reset procedure.................................................................................................................... 35
9.MENU ............................................................................................................................................. 36
9.1Accessing the menu .............................................................................................................. 36
9.2Entering password................................................................................................................. 37
9.3Buzzer volume setting ........................................................................................................... 37
9.4Date and time setting ............................................................................................................ 38
9.5Selecting a language ............................................................................................................. 38
9.6Changing user name ............................................................................................................. 39
9.7Parameter overview............................................................................................................... 40
10.CLOCK ...................................................................................................................................... 41
11.HISTORICAL DATA ................................................................................................................... 41
12.ALARMS AND EVENTS LIST..................................................................................................... 42
12.1Description of alarm messages............................................................................................. 42
12.2List of alarm messages.......................................................................................................... 42
12.3List of warning messages...................................................................................................... 43
13.USB PORT................................................................................................................................. 43
14.MAINTENANCE ......................................................................................................................... 44
14.1General recommendations on maintenance ......................................................................... 44
Machine status .............................................................................................................. 44
14.2Maintenance request............................................................................................................. 44
14.3Routine maintenance............................................................................................................. 44
14.4Table of routine maintenance tasks ...................................................................................... 45
14.5Special maintenance ............................................................................................................. 50
Table of special maintenance tasks .............................................................................. 50
15.PROBLEMS – CAUSES – REMEDY .......................................................................................... 51
15.1Introduction ........................................................................................................................... 51
15.2Problems (P.) – Causes (C.) – Remedy (R.) ........................................................................... 51

GENERAL RULES
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16.TECHNICAL DATA .................................................................................................................... 53
17.DISPOSING OF YOUR OLD MACHINE .................................................................................... 55
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GENERAL RULES
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1. GENERAL RULES
1.1 Limits of manufacturer’s liability
The manufacturer shall not be held liable for failures or problems which arise due to
tampering and/or incorrect applications and/or improper use of the machine.
The user must comply with all instructions set forth in the user's manual:
Always work within the allowable limits for the use of the machine
Always carry out constant and diligent maintenance
Allow use of the machine by persons with proper skills and abilities for their role and
purpose who have been properly trained and instructed
Use only manufacturer original spare parts
Any modifications, adaptation or the like which may be made to machines which are
subsequently placed on the market do not oblige the manufacturer to intervene on previously
supplied machines, nor to consider the machine and the related user's manual lacking and
inadequate.
The installation, maintenance and operating instructions given in the following pages have
been prepared to ensure the long life and outstanding performance of the appliance.
The instructions in this manual do not replace but rather are in addition to employer
requirements to adhere to current legislation on standards of prevention and safety.
1.2 Manual validity, contents and conservation
It is important to keep this instruction manual with the machine for future reference.
If the machine is sold or transferred, the manual must be handed over to the new owners or
user in order for them to become acquainted with its functioning and the relative warnings.
Read the warnings carefully before installing and using the machine.
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PRODUCT INFORMATION
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2. PRODUCT INFORMATION
Before starting work, the user must be completely familiar with the functions and proper
operation of the machine. The user must know the precise function of all command and
control devices of the machine.
PLW 8505
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PRODUCT INFORMATION
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2.1 Intended use, improper use
This laboratory glassware washer is designed for washing laboratory glassware and
laboratory utensils with water based media. It is designed for use in laboratories in schools,
colleges and universities.
The process includes cleaning, rinsing and drying.
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 cleaning in a laboratory
glassware washer.
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 cleaning include, for example:
Vessels such as test tubes, beakers, flasks, cylinders, etc.
Measuring vessels such as measuring cylinders, volumetric flasks, etc.
Dishes such as petri dishes, watch glasses, etc.
Small items such as lids, spatulas, magnetic stirring rods, stoppers, etc.
Other items such as funnels
Laboratory glassware and laboratory utensils for cleaning are referred to as the wash load if
they are not more specifically defined.
Processing conditions must be suitable for the wash load and for the type of soiling.
Cleaning agents must be suitable for the type of soiling and for methods of analysis being
used.
The use of a suitable carrier (mobile unit, basket, module, insert, etc.) is important to ensure
adequate processing of the load.
WARNING
Inappropriate use can, however, lead to personal injury and material
damage.
Miele cannot be held liable for damage caused by improper or incorrect
use or operation of the machine.
If the appliance is used in a manner not specified by the manufacturer,
protection of the appliance may be compromised.

PRODUCT INFORMATION
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2.2 Safety instructions
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.
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Correct application
This lab washer 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 lab
washer must only be used for cleaning laboratory glassware and utensils if the
manufacturer has stated that they are suitable for machine cleaning.
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
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.
Some metal parts pose a risk of injury/being cut. Wear cut-resistant protective gloves
when transporting and setting up the machine.
If the machine is built under, it must only be installed under a continuous countertop
which is firmly secured to adjacent units to improve stability.
The electrical safety of this machine can only be guaranteed when correctly grounded. 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 grounding system (e.g., electric shock).
A damaged or leaking machine could be dangerous and compromise your safety.
Disconnect the machine from the power supply immediately and call the Miele Service
Department or an authorized and trained service technician.
Personnel operating the machine should be trained regularly. Untrained personnel should
not be allowed to use the machine.
Only use cleaning agents which have been approved by their manufacturer for use in the
application you are using. The cleaning 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 cleaning agents. These may contain irritant, corrosive or toxic
ingredients.
Please observe the cleaning 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 cleaning
agents only.

PRODUCT INFORMATION
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Organic solvents and flammable liquid agents must not be used in the machine. 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.
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.
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.
Should personnel accidentally come into contact with toxic vapors or cleaning 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.
Never clean the machine or near vicinity with a water hose or a pressure washer.
The machine must be disconnected from the power 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 program, this may only be done by the designated user.
The standard of cleaning should be routinely confirmed by the user.
Make sure items being washed are suitable for machine cleaning 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.
Cleaning agents can, in certain circumstances, cause damage to the machine. Always
follow the recommendations of the cleaning agent manufacturer.
In case of damage or doubt about compatibility, please contact Miele.
Do not use bleach in the washer.
Abrasive substances must not be placed in the machine as they could cause damage to
the mechanical components of the water circuit. Any residues of abrasive substances on
items to be washed must be removed without trace before cleaning in the machine.
Pre-treatments with cleaning agents can create foam, as can certain types of soiling.
Foam can have an adverse effect on the cleaning result.
Foam can cause leakage and damage to the washer.Therefore do not use cleaning
agents that foam and set up the processes such that no foaming occurs.
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PRODUCT INFORMATION
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Where a cleaning 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
advertised by the chemical manufacturer can have a negative effect on the cleaning
result.
When using a cleaning agent it is essential that the manufacturer's instructions are
followed. The cleaning 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
cleaning 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 cleaning agents,
water quality, etc., are discussed with the Miele Application Technology specialists.
The mobile units, baskets, modules and inserts that hold the load must be used only as
intended.
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
70°F (21 °C).
Ensure that solutions or steam containing chlorides or hydrochloric acid do not come into
contact with the wash cabinet, accessories and 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, e.g., with
silicone sealant as this could compromise the ventilation to the circulation pump.
Follow the installation instructions in the operating and installation instructions.
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 cleaning 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 cleaning agent in the cabinet. Observe the
safety data sheets for the cleaning agent and seek medical advice immediately if a child
has swallowed cleaning agent or got it in the eyes.
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