Miele G 7881 User manual

Installation and Operating
Instructions
Washer-Disinfector
G 7881
To avoid the risk of personal injury or
damage to the appliance,
it is essential that you
read these operating instructions
before installation and use. M.-Nr. 07 778 581
en-CA

Safety instructions and warnings ....................................5
Symbols on the appliance .........................................9
Description of the machine.........................................10
Guide to the machine .............................................13
Caring for the environment.........................................15
Before using for the first time.......................................16
Opening and closing the door ......................................17
Electric door lock ..................................................17
How to open the door ..............................................17
How to close the door ..............................................17
How to use the emergency release (opening the door during a power failure) . . 17
Water softener ...................................................18
How to program the water softener ....................................18
How to fill the salt reservoir ..........................................20
Refill Salt Indicator .................................................21
Application ......................................................22
Protein test .......................................................22
How to load the machine ............................................23
Spring adapter for the water connection ................................24
How to adjust the upper basket.......................................24
Application.......................................................25
Chemical process ................................................26
Dispensing processing chemicals ...................................30
Adding rinse aid ..................................................30
Rinse aid indicator light .............................................31
Setting the rinse aid dosage .........................................31
How to add neutralizer..............................................32
Neutralizer indicator light............................................33
How to add detergent ..............................................34
Using powder detergent ............................................34
Liquid option .....................................................35
Refilling the liquid detergent.......................................35
Operating the machine ............................................36
How to switch on ..................................................36
Starting a program.................................................36
Select the additional "Drying" feature 0.............................36
Contents
2

Progress indicator .................................................37
End of program ...................................................37
How to switch off ..................................................38
How to cancel a program ...........................................38
Programmable functions...........................................39
The following instructions apply to all programming functions:...............39
Activate the programming mode ...................................39
Saving to memory and exiting the programming mode ..................39
Exiting the programming mode without saving ........................39
DOS 1 dispensing (detergent)........................................40
Setting the liquid detergent dispensing concentration...................40
Priming the liquid detergent dispensing system .......................41
DOS 3 dispensing (neutralizer) .......................................42
Setting the neutralizer concentration ................................42
Priming the neutralizer dispensing system............................43
Buzzer ..........................................................44
How to restore the factory settings ....................................45
Data transfer (optional) ...........................................46
Machine care ....................................................47
Maintenance .....................................................47
Process validation .................................................48
Routine checks ...................................................48
Cleaning the filters in the wash cabinet.................................49
Cleaning the coarse filter .........................................49
Cleaning the flat and micro-fine filters ...............................50
Cleaning the spray arms ............................................51
Cleaning the control panel...........................................52
Cleaning the front of the appliance ....................................52
Cleaning the wash cabinet ..........................................52
Cleaning the door seal..............................................52
Dispensing systems................................................52
Baskets and inserts ................................................53
Troubleshooting..................................................54
Correcting faults .................................................62
Temperature sensor................................................62
Cleaning the non-return valve and drain pump...........................63
Cleaning the filter in the water inlet ....................................64
Contents
3

Installation ......................................................66
Undercounter installation............................................66
Electrical connection..............................................68
Plumbing........................................................69
Connecting to the water inlet .........................................69
DI water connection .............................................70
Connect the water drain ............................................71
Program guide ...................................................72
Technical data ...................................................74
Contents
4

This appliance complies with all
applicable safety laws and
regulations. However, inappropriate
use can lead to personal injury and
property damage.
Read the operating instructions
carefully before using this machine.
This will help keep you safe and
avoid damage to the machine.
Keep these instructions in a safe
place.
Proper use
~This machine is intended only for the
purposes specified in the operating
instructions. Conversions,
modifications, and other unintended
uses are considered to be dangerous.
The cleaning and disinfection
processes described here apply only to
those instruments and medical
products that are specifically designed
by the manufacturer to be re-used.
Follow the product manufacturer's
instructions. Miele will not be held liable
for damage caused by incorrect use of
any kind.
~This machine is intended exclusively
for use in interior locations.
~The installation of this appliance in
non-stationary locations must be
performed by a qualified installer or
service agency in strict accordance
with national and local safety
regulations and standards.
To avoid injury, please follow these
instructions!
~The machine must be installed,
maintained and repaired by a Miele
Service Technician. For best
compliance with Good Laboratory
Practice and regulations governing the
use of medical products, a valid Miele
service and repair contract is
recommended. Repairs by unqualified
persons could be very dangerous!
~Do not install the machine in an area
where there is a risk of explosion or
freezing.
~The electrical safety of this machine
is only assured if it is connected to a
properly installed grounding system. It
is imperative that this basic safety
requirement is met. If there is any
doubt, have the electrical system
checked by a qualified electrician.
The manufacturer will not be held liable
for damages resulting from an
inadequate grounding system (e.g.
electric shock).
~A damaged or leaking machine is
dangerous. Turn off the machine imme-
diately at the power switch and call the
Miele Service Department.
~Machine operators must be trained
on a regular basis. Untrained personnel
must not be allowed access to the
machine or its controls.
Safety instructions and warnings
5

~Always exercise caution when
handling processing chemicals for this
machine (cleaner, neutralizer,
saponifier, rinsing agent, etc.). These
may contain irritant or corrosive
ingredients. Observe the applicable
safety regulations! Wear protective
gloves and goggles! Always follow the
manufacturer's safety instructions and
material safety data sheets when using
processing chemicals.
~The washer is only designed to
operate with water and the
recommended processing chemicals.
NEVER use organic solvents or
flammable liquids. These could cause
an explosion or damage to rubber and
plastic components, which results in
leaks.
~Avoid inhaling powdered products.
Never swallow cleaning agents,
because this can result in chemical
burns to the mouth and throat, and
suffocation.
~The water in the machine is not safe
to drink!
~Do not stand, sit or lean on the
machine door when open. The
appliance might tip over or be
damaged.
~Take care when loading items with
sharp pointed ends. Position them in
the machine so that you will not hurt
yourself or create a danger for others.
~When operating this machine, be
aware of the high temperatures
involved. If you bypass the electrical
lock to open the door, there is the
danger of scalding and heat or
chemical burns. If disinfectants have
been used, there is also a risk of
inhaling toxic vapors.
~If toxic chemicals may be present in
the wash cabinet (e. g. aldehydes in
the disinfectant), the door seal and, if
applicable, the steam condenser must
regularly be checked for soundness.
Opening the washer door during a
program interruption is particularly
dangerous when toxic chemicals are
present.
~If you are exposed to toxic vapors or
processing chemicals, consult the
manufacturer's material safety data
sheets for emergency procedures.
~Always allow baskets, inserts and
the washload to cool down. Empty any
water from hollow items into the wash
cabinet.
~Do not touch the heating elements
when you open the door during or at
the end of a program. They remain hot
for quite a few minutes after the
program has ended and can cause
burns.
~NEVER hose down the machine or
the immediate vicinity, e.g., with a water
hose or pressure washer.
~Before servicing the machine,
disconnect it from the power supply.
Safety instructions and warnings
6

The following points should always
be observed to assist in maintaining
quality standards when processing
medical devices, to protect patients
and to avoid damage to property.
~If the machine is being used for
decontamination ordered by the
authorities, the steam condenser and
its connections to the wash
compartment and outlet discharge
must be disinfected for repair or
exchange.
~Only authorized persons may
interrupt a program, and only in
exceptional cases.
~It is the responsibility of the operator
to routinely check that the required
cleaning and disinfection standards are
being met. Therefore, the processes
need to be thermoelectrically tested on
a regular basis and process results
checked and documented. For
thermo-chemical processes, additional
testing is required using chemical or
biological indicators.
~For thermal disinfection, the
appropriate temperatures and holding
times, as required by microbiological
and public health standards and
guidelines, must be used to achieve the
required degree of infection control.
~Disinfection programs that use a
chemical disinfectant at moderate
temperatures (for example 65°C or
lower) do NOT fulfill the official
requirements for decontamination
pursuant to Section 18 of the IfSG.
These programs should only be used
when the items in question are
temperature-sensitive. The disinfection
parameters are based on the trials
carried out by the disinfectant
manufacturer. Always observe their
specifications for handling, application
conditions and efficacy. The operator is
responsible for the use of any such
thermo-chemical processes.
~Under certain circumstances, the
processing chemicals can damage the
appliance. Consult Miele Customer Ser-
vice for recommendations. For
concerns involving possible damage to
the appliance or materials, please
consult a Miele Application Specialist.
~Pre-treating (e.g. with cleaning
agents or disinfectants), some types of
soiling and the interaction of certain
processing chemicals can cause
foaming. Suds can have an adverse
effect on the results obtained.
~The process must be set so that no
foam escapes the wash compartment.
Escaping foam impairs the safe
operation of the machine.
~The process must be checked
regularly in order to detect any
foaming.
Safety instructions and warnings
7

~In order to prevent damage to the
machine and any accessories through
processing chemicals or dirt as well as
any interaction between them, see the
instructions in the section Chemical
process.
~Even when a certain processing
chemical is recommended, the
appliance manufacturer takes no
responsibility for the effect of such
chemicals on the material of the items
to be treated.
Note that formulation changes, storage
conditions, etc. that are not disclosed
by the manufacturer may adversely
affect the cleaning results obtained.
~When using processing chemicals
(e.g. cleaning agents) always follow the
manufacturer's instructions. Use the
processing chemicals only for the
applications intended by the
manufacturer to avoid possible
chemical reactions (such as explosive
oxyhydrogen gas reactions).
~For critical applications, where very
high processing quality requirements
have to be met, it is strongly
recommended that all process-related
factors (processing chemicals, water
quality, etc.) be discussed in advance
with Miele Application Technology.
~The mobile units, baskets and
inserts must only be used for their
specific applications.
Hollow items must be positioned for full
exposure to wash water.
~Empty all containers and hollow
utensils before loading them.
~Ensure that no acid or solvent
residues, especially hydrochloric acid
or chloride solutions, get inside the
wash cabinet. As well, no ferrous
material!
Solvents combined with the soiling
(especially in hazard class A1) should
be present in trace amounts only.
~To avoid corrosive damage, make
sure the stainless steel housing does
not come into contact with
solutions/steam containing hydrochloric
acid.
~Whenever work is conducted on the
tap water network, the water supply line
to the machine must be cleared of air.
Failure to do so can result in damage to
the machine.
~Please be sure to follow the
installation instructions in this manual
and in the separate installation manual.
Safety instructions and warnings
8

Accessories
~Whatever the application, only Miele
accessories should be connected to
this machine. Consult a Miele
Application Specialist for details on the
type of equipment to use.
~Only Miele mobile units, baskets
and inserts should be used. If Miele
accessories are altered in any way, or
equipment from another manufacturer
is used, Miele cannot ensure the
cleaning and disinfection results.
Damage or injury caused in this way
are excluded from the warranty.
~Only use processing chemicals that
are approved by their manufacturer for
the application involved. Any negative
effects on items and the machine itself
are the liability of the manufacturer of
the processing chemicals.
Symbols on the appliance
Caution:
Comply with the Operating
Instructions!
Caution:
Danger of electric shock!
Disposing of your old appliance
~Old appliances may be
contaminated from exposure to blood
or other body fluids and must therefore
be decontaminated before disposal.
For safety and environmental
protection, be sure to drain/remove all
processing chemical residue. (Comply
with safety regulations and wear
protective eyewear and gloves.)
Remove or destroy the door latch, to
prevent children from locking
themselves inside. The appliance can
now be sent for disposal through the
proper resource recovery facilities.
The manufacturer will not be held
liable for damage caused by failure
to comply with the safety instructions
and warnings.
Safety instructions and warnings
9

The Miele washer-disinfector is
designed to clean, rinse and thermally
disinfect re-usable equipment.
Always comply with the particular
manufacturer's instructions
(EN ISO 17664).
Examples of items that can be
processed in this appliance are
instruments, suction equipment,
transfer instruments, etc.
For standardized results, it is preferable
to machine-wash equipment.
When disinfection is required, the
preference is for thermal disinfection,
e. g., using the Disinfection vario
program.
According to the A0concept under
EN ISO 15883-1, thermal disinfection
occurs at 90 °C (+ 5 °C, - 0 °C) and a
holding time of 5 min (A03000). The
efficacy standard A03000 includes the
inactivation of HBV.
Regional and/or other official directives
may apply (e. g., §18 of the IfSG for
Germany).
The cleaning parameters should always
be optimally matched to the type of
soiling and items involved.
Processing chemicals are to be
selected to suit the particular cleaning
needs involved.
For re-usable items to be safe for
continued use, the cleaning result must
meet certain minimum standards for
disinfection, sterilization and residue
levels.
Re-usable products are best cleaned
using the Disinfection vario program.
Also important for acceptable cleaning
results on equipment is the use of
suitable loading accessories (baskets,
modules, inserts). See the section on
"Applications" for examples.
The washer-disinfector is designed to
rinse with tap water or processed water
(e.g., distilled water, pure water,
deionized water, demineralized water)
depending on the quality required for
your application(s).
Under EN ISO 15883, this
washer-disinfector is suitable for
process validation.
Description of the machine
10

High -level disinfection
The washer-disinfector cleans items,
and in the disinfection program,
simultaneously thermally disinfects at
93°C/200°F.
Areas of effectiveness are physical
removal or thermal inactivation of
vegetative bacteria including
mycobacteria, fungi, fungal spores and
viruses. These catergories include the
Mycobacterium tuberculosis and the
Enterococcus faecium.
Important: Only the program labelled
"disinfection" disinfects! Only use this
program when handling contaminated
items. All other programs are designed
to clean items without disinfecting.
The washer-disinfector achieves
high-level disinfection as defined by
the Spaulding categorization.
The Spaulding category high-level
disinfection is the same type of means
as in the sterilant category except that
the use pattern is different. The sterilant
is used as a high-level disinfectant by
e.g. reducing the exposure time within
its effective range of tuberculocidal,
virucidal and bactericidal action.
Instruments suitable for processing
in the washer-disinfector
In general, only high quality stainless
steel items are suitable for processing
in the washer-disinfector. All items to be
cleaned and disinfected in the
washer-disinfector should have the
following properties:
–heat resistance to a temperature of
95°C/203°F
–corrosion resistance in the presence
of heat and alkalinity.
The heat retention capacity of stainless
steel allows for fast drying. Plastic has a
lower heat retention capacity, thus
requiring a longer drying time. In this
case, a slightly extended waiting period
of 5-15 minutes may be necessary after
the disinfection cycle.
Aluminum items may discolour during
the cleaning process. Aluminum has
only a limited suitability for processing
in the washer-disinfector.
Carbon steel and chrome-plated items
may corrode during the cleaning
process. Processing these types of
items in the washer-disinfector is NOT
recommended.
Hand pieces, drill bits, grinders, root
canal instruments or other rotating
items are not suitable for the
washer-disinfector. Do not process
them in the washer-disinfector.
Description of the machine
11

Do not clean fiberoptics or electrical
equipment and components in the
washer-disinfector.
Rhodium coated mirrors must be
arranged so that their surfaces do not
suffer any mechanical damage. Not all
specula with glass are suitable for
machine treatment.
If you have questions regarding
whether an item is suitable for
processing in the washer-disinfector,
please seek the advice of the item
manufacturer.
Water Quality
Good water quality is essential for
processing items in the
washer-disinfector, otherwise, item
corrosion may result.
Poor water quality consists of, but is not
limited to, high concentrations of
chlorides (over 50 ppm). High chloride
levels will cause even high quality
stainless steel items to rust when
processed in the washer-disinfector.
Other effects that may be noticed are
tarnishing or "blueing" of items due to
dissolved minerals in the water.
Description of the machine
12

aON/OFF switch
bDoor release
cTime/Display
dToggle switch ßto show:
- actual temperature
- elapsed time
- active wash block
eDrying button 0with indicator light
fStart button 6with indicator light
gProgram sequence display:
Recharging
Pre-Wash
Wash
Rinse
Dry
Complete
hCheck/Fill indicators:
Fill / Drain
Recharge
Neutralizer
Rinse Aid
8Detergent optical interface for
service technician;
for connected
DOS Module K 60:
liquid detergent
iProgram selector
fStop
Wash
Rinse
Drain
Disinfection 93°C-10"
Disinfection vario
Guide to the machine
13

aConnection for DOS module K 60 on
rear side of appliance
bService panel
cFilter combination
dReservoir for regenerating salt
eCompartment for powdered
detergent
fReservoir for rinse aid, with dosage
selector
gRinse aid level indicator
on rear side of the appliance:
–Interface connector RS 232
–Suction uptake for external
neutralizer reservoir
Guide to the machine
14

Disposal of packing materials
The packing materials help protect the
appliance during transport. They have
been selected with an eye to
environmental compatibility and
efficient disposal and should be
recycled.
Returning packaging to the materials
cycle saves raw material and reduces
waste.
Disposing of your old
appliance
Old electric and electronic equipment
often contains valuable materials but
they may also contain harmful
substances that were necessary for
safe use. Improperly disposing of these
items in your household waste can
harm human health and the
environment. This is why it is important
to NEVER dispose of your old
appliance with the regular household
garbage.
Instead, please contact your local
community waste collection point to
return and recycle electric and
electronic appliances.
If the appliance is being stored for
disposal, please make sure it has been
child-proofed.
Caring for the environment
15

Before using the machine for the first
time please pay special attention to
the following points:
Detailed information on these points
can be found in the relevant section
of the Operating Instructions.
Set the water softener
The water softener must be set to the
water hardness level of your area.
Contact your local water authority to
find your water hardness level in parts
per million (ppm) or grains per gallon
(gr/gal).
The salt reservoir must be filled first
with water and then with reactivation
salt.
Filling the salt reservoir with cleaning
agent by mistake will cause serious
damage to the water softener. Please
check every time before refilling that
the package contains reactivation salt.
Add rinsing agent
Inadvertently filling the rinsing agent
reservoir with cleaning agent
(including liquid cleaning agents
and dishwashing soap) will cause
serious damage to the reservoir.
Only use detergents suitable for use
in disinfecting washers.
Do not use detergents formulated for
use in domestic dishwashers.
Load the machine carefully.
Arrange the load so that water will
come into contact with all surfaces.
Concealed surfaces will not be
cleaned.
The spray arms must not be blocked by
any items.
Adding detergent
Follow the dosage recommendations of
the cleaning agent manufacturer.
The filter combination at the base of
the wash cabinet and the spray arms
must be clean.
Regular checking and cleaning is
essential.
Before using for the first time
16

Electric door lock
The machine is equipped with an
electric door lock.
The door can only be opened when
^the electrical supply to the machine
is turned on and the
^"ON/OFF" switch is pressed.
How to open the door
^Press the "Door" button in as far as it
will go, at the same time, grip the
handle and open the door.
,Do not touch the heating
elements when you open the door at
the end of a program. They remain
hot for quite a few minutes after the
program has ended and can cause
burns.
Once a program has started, the door
stays locked until completion and
cannot be opened, however, the two
programs "Rinse" and "Drain" are
exempt from the electric door lock.
How to close the door
^Lift the door upward and push it until
it clicks shut. Do not press the
release catch while shutting the door.
How to use the emergency
release (opening the door
during a power failure)
The emergency release feature
should only be used when it is not
possible to open the door normally,
for example, after a power outage.
For all SPECIAL programs, please
read the "Safety Information and
Warnings".
^Turn the program selector to the
12 o'clock position f.
^Press the "ON/OFF" button to switch
off the machine.
^Locate the ring for the emergency
release cable (at the bottom of the
machine, behind the service panel),
and pull the ring downward to open
the door.
Opening and closing the door
17

In order to provide good cleaning
results, the machine requires a supply
of soft water (water that is low in
calcium and magnesium). If hard tap
water is used, it can leave a white
mineral deposit build-up on the items
and the machine itself, therefore, tap
water with a hardness of 4 gr/gal or
70 ppm or more must be softened. The
built-in water softener is designed for
this purpose.
–In order to function properly, the
water softener requires a supply of
reactivation salt.
– The cleaner must be correctly
programmed to match the hardness
of the tap water supply.
– Your local water authority will provide
information about the hardness of the
tap water in your area.
If the water hardness is known to
fluctuate (e. g., 8 - 17 gr/gal), always
program for the highest value (in this
instance 17 gr/gal).
The built-in water softener can be
programmed at settings from
1-60 gr/gal or 20-1080 ppm.
It is useful to make a note of the water
hardness so that you can provide the
service technician with this information
in the event of any service calls.
Please note the water hardness in the
space provided here:
gr/gal or ppm
How to program the water
softener
^Use the "ON/OFF" button to switch off
the machine.
^Turn the program selector to the
12 o'clock position f.
^Simultaneously press and hold the
"Display" ßand "Start" 6buttons,
while turning the machine on with the
"ON/OFF" button.
The current program status P....
will appear in the display, and the
"Fill/Drain" indicator light will come on.
^Press the "Drying" 0button one
time.
E01 wil appear in the display.
^Turn the program selector one switch
position clockwise (to the 1 o'clock
position).
The number 19 will appear in the
display (this indicates the factory
setting in gr/gal).
^Press or hold down the "Display" ß
button until the required value
appears in the display.
Please refer to the next page for
detailed water hardness tables (water
hardness in gr/gal and ppm).
Once the 60 setting has been reached,
the counter begins again from 0.
^Press the "Start" 6button.
SP will appear in the display.
^Press the "Start" 6button again to
save.
Water softener
18

Settings
Settings
1-30
gr/gal
1-30
ppm
CaCO3
Settings
31 -60
gr/gal
31 -60
ppm
CaCO3
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
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
20
40
50
70
90
110
130
140
160
180
200
220
230
250
270
290
310
320
340
360
380
400
410
430
450
470
490
500
520
540
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
560
580
590
610
630
650
670
680
700
720
740
760
770
790
810
830
850
860
880
900
920
940
950
970
990
1010
1030
1040
1060
1080
*) factory setting
Water softener
19

How to fill the salt reservoir
Only use special, coarse-grained, Miele
reactivation salt with a grain size of
1 - 4 mm. NEVER use other types of
salt, such as table salt, cattle salt or
de-icing salt. These salts can contain
components that are insoluble in water
and could damage the water softener.
The salt reservoir holds
approximately 2.5 kg salt.
,Inadvertently filling the salt
reservoir with detergent WILL
damage the water softener.
Before filling the reservoir, always
make sure that you are using
reactivation salt.
^Remove the bottom basket from the
machine.
^Unscrew the salt reservoir cap.
Before filling the salt reservoir for the
first time:
fill the reservoir with approximately
2.5 liters of water, so that the salt
can dissolve properly. Once the
washer-disinfector has been
operated, there will always be
enough water in the reservoir.
^Place the provided funnel accessory
over the salt reservoir.
^Carefully fill the reservoir with
reactivation salt.
Some displaced water will run out - this
is normal.
Water softener
20