G 7881 Dental Thermal Disinfector
System Solutions for Dental Practices
The Heart of Integrated Instrument Reprocessing:
The Miele G 7881 Dental Disinfector
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Systematic, Streamlined, Simplified
Miele is proud to introduce the G 7881
Dental Disinfector. Featuring excellent
cleaning, fast throughput, and high
level disinfection, the G 7881 both
streamlines and simplifies instrument
reprocessing in the dental practice.
This practice of simplified instrument
management will help you increase
revenue, lower operating expense, and
ensure the highest level of office safety.
This automated, repeatable cleaning
process greatly reduces staff workload,
allowing them more time chairside. The
result: more patient appointments
throughout the day, with a marked
increase in revenue.
The G 7881 is an extremely cost-effective
means of cleaning instruments. While not
only eliminating the handwashing of
instruments, the system features a very
low per-cycle cost, with low water and
detergent consumption.
The G 7881 also brings reliably safe
instrument cleaning to your practice,
greatly reducing your dependence on
ultrasonics. The G 7881 not only
exceeds OSHA standards, but provides
industry-leading high level disinfection as
well, with a microbial contamination
reduction of 99.999999%.
Leading Features for Optimal Results
For state of the art reprocessing, the
new G 7881 includes a deionized (DI)
water intake valve for connection to an
external pure water source. Leading
instrument manufacturers recommend a
DI water rinse as the final processing
step prior to sterilization.
Rinsing with DI water ensures the
elimination of detergent residues and
naturally occurring minerals which could
lead to instrument stains and corrosion.
Since the G 7881 features a dedicated
DI water intake, consumption of DI water
is less than 2.5 gallons per cycle,
making the system both economical and
efficient to operate.
For full integration of your Dental
Disinfector, Miele now introduces the
exclusive Décor Panel. This unique
feature allows the unit to blend in
seamlessly
with
your
cabinetry,
bringing the polished, professional
look of the rest of your office into your
instrument reprocessing center.
With an outstanding set of benefits,
including high water circulation, fast
throughput, and exacting temperature
controls, the Miele G 7881 provides
reliable, industry leading cleaning and
high level disinfection to the modern
dental practice.
Left photo: Featured is the G 7881 w/ optional
Décor Panel.
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Introduction to the Miele Thermal Disinfector
Cleaning and Disinfection Made Simple
Miele: Competence in Thermal Disinfection
For more than three decades, Miele
has been a leading innovator in the
development of washer-disinfectors for
use in medical and dental settings.
Intensive application-related research
and close cooperation with hygiene
specialists, instrument manufacturers,
and end-users have made Miele the
market leader in this field.
Generation G 78
With its new G 78 generation of Dental
Thermal Disinfectors, Miele is once
again blazing a trail as the leading
manufacturer of washer-disinfectors.
The new G 78 series represents a major
step forward in machine-based washing
and disinfection technology. It offers
superb performance and reliability.
Miele is a trusted partner to the dental
professional, offering comprehensive advisory service as well as technical assistance,
where required.
With the ability to wash, disinfect, rinse, and
dry, Miele Dental Thermal Disinfectors are
the clear choice of washers for today's
dental professional.
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Cleaning and Disinfection
The G 7881 Dental Thermal Disinfector
is the result of closely studying the
requirements of dental practices and
specialized clinics. It has been developed
specifically for the cleaning and disinfection of dental instruments and accessories, and is suitable for reducing the risk
of infection as a result of injuries to dental
professionals.
This system aims to optimize the flow of
contaminated material in dental practices.
Ideally, the dentist places contaminated
instruments into a cassette. The cassettes
are then processed in the G 7881 Dental
Thermal Disinfector. This system heats the
water to a temperature of 93°C/200°F and
maintains it for 10 minutes, resulting in
high level disinfection as defined by the
Spaulding categories without the use of
chemical disinfectants. This system’s
strong cleaning abilities reliably remove
blood which has been dried for up to 6
hours to a virtually untraceable degree,
practically eliminating the need for further
manual cleaning.
Systematic Cleaning
The G 7881 Dental Thermal Disinfector
has a freshwater circulation system set
up for connection to cold water. Each
wash phase takes in 2.2 gal. of fresh
water. The incoming water is first
cleaned in the water inlet filter. The water
softener ensures a consistently high
water quality. The powerful circulation
pump, with a turnover volume of 106
gal. per minute, circulates the water
through the wide range spray arms with
directionally adjusted injectors.
Three spray arms, which combine high
and low pressure jets, have significant
advantages for cleaning effectiveness.
The differences in the flow velocities result
in a low frequency amplitude modulation.
The wash solution is permanently
circulated through a quadruple filter
system: a coarse filter, a large area filter, a
fine filter, and a microfine filter ensure that
even the smallest particles are being
retained and cannot get through to the
circulation pump.
During the heating phase in the disinfection program, the steam condenser is
activated at temperatures above
55°C/130°F. This prevents the escape of
steam and vapors from the machine and
eliminates the annoyance of unpleasant
odors. More importantly, this also
ensures that no contaminated aerosols
can affect the environment.
Three automatic dispenser devices provide
exact allocation of detergent, neutralizing,
and rinsing agents. Containers for
detergents may be conveniently stored in
dispensing unit G 7896.
When retrieving the cassettes from the
disinfector, they are safe for handling.
The staff will be protected against
infection to a high degree while handling
the instruments because of the high
level disinfection that takes place
during the cycle. The instruments and
cassettes should then be checked,
wrapped, and sterilized.
Right photo: Featured is the G 7881 Package # 1
with optional DOS G60/1 liquid detergent
dispenser pump.
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Quality, Safety and Efficiency Combined to
Achieve Maximum Cleaning Results
High Tech and High Quality
Miele Quality
• High quality stainless steel
• Titanium coated heating elements
• Heavy-duty, reinforced hoses
• Complex filtration systems for water
inlet and wash cabinet
• Double wall construction with insulation
High Performance in a Compact Form
• Front-loading operation
• 5 programs with Multitronic electronic
controls
• Digital time/temperature display
• Diodes indicate the completion of
programs, the need to add salt for the
water softener, and to refill detergent,
neutralizing and rinsing agents
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• Freshwater circulation system for strict
hygiene
• Three dispenser devices for powder
detergents, neutralizing and rinsing
agents
• Liquid detergents can be automatically
dispensed using a connection to the
optional dispenser module
• Built-in water softener
• Steam condenser operative in disinfection
program
• Powerful circulation pump with 106
gal./min. throughput
• Drain pump with maximum delivery head
of 3 ft.
• Waterproof system to prevent flooding in
case of leakage
• Extremely quiet operation
On the Outside
The G 7881 Dental Thermal Disinfector
can be used as a freestanding unit, or
can be built under a continuous worktop.
On the Inside
The two level wash cabinet is made of high
quality chromium-nickel steel and offers
a large capacity (internal dimensions
H 18 1/2” x W 20 1/2” x D 20 1/2”).
The double wall construction provides
heat and sound insulation and is
especially designed to save energy and
be particularly quiet in operation.
G 7881 Dental Thermal Disinfector:
Safe and Economical
Individual Solutions
There is a range of accessories available
for the Miele Thermal Disinfector. These
include the DOS G60 automatic liquid
detergent dispenser module, the G 7896
Storage Cabinet, and various Stainless
Steel Bases for an ergonomic approach
to loading and unloading.
The Disinfection Programs
The G 7881 Dental Thermal Disinfector
offers programs for thermal disinfection
with simultaneous cleaning and rinsing
of instruments and accessories and
optional drying.
The thermal disinfection takes place
at 93°C/200°F with a holding time of
10 minutes, resulting in a high level
disinfection as defined by the Spaulding
categories.
Disinfection must be accompanied by
cleanliness, because even disinfected
soil offers an almost ideal environment
for new microbial growth. The cleaning
efficiency of the G 7881 Dental Thermal
Disinfector ensures decontaminated
instruments free of soil. Even blood
which has been dried for up to 6 hours
is reliably removed to a virtually
untraceable degree.
Disinfection 93ºC – 10' Program
This program will clean and provide
high level disinfected instruments. The
thermal disinfection process (93ºC for 10
min.) occurs during the first cycle step to
ensure that only disinfected water is
dispensed into the sewage system.
Disinfection Vario Program
The Disinfection Vario program is the
most widely used and recommended
program. The disinfection capabilities
allow the instruments to be handled
safely by the staff after the cycle has
finished. The thermal disinfection
process (93ºC for 10 min.) occurs during
the final rinse cycle. This is important
because the instruments will be at their
hottest at the end of the program,
allowing for faster and more efficient
drying results.
Rinse Program
This program is ideal for the rinsing of
instruments which may have been
treated in a pre-soak solution. Separate
rinsing eliminates potential problems
caused by the build-up of foam.
Baskets and Inserts
Miele offers a wide range of specialized
baskets and inserts. The baskets and
inserts have been designed for individual
instruments. Hollow instruments can be
cleaned and disinfected by using injector
basket O 177/1. Hinged instruments
should be opened and placed in a mesh
tray, i.e. the E 378 or E 379. A combination
of baskets and inserts can be used to
clean the specific instruments of a dental
practice.
Wash Program
This program will clean the instruments
without disinfection. The temperature of
60ºC efficiently washes dirty instruments
in a short amount of time (approx. 35 min.).
Program
Contents
Disinfection
Vario
Disinfection
93oC-10’
Wash
Rinse
Water
circulation
–
–
Water
circulation 4’
55°C
93°C-10’
(Disinfection)
60°C
–
3. Interim
Rinse I
Neutralizing
rinse
Neutralizing
rinse
–
–
4. Interim
Rinse II
Water
circulation
Water
circulation
Water
circulation
–
5. Final Rinse
93°C-10’
(Disinfection)
75°C
65°C
–
6. Drying
Optional: 10’
Optional: 10’
Optional: 10’
–
54’
50’
35’
4’
1. Preliminary
Rinse
2. Cleaning
Approximate
cycle time
(without drying)*
* Cycle time depends upon a number of variables including electrical supply, incoming water
temperature, and incoming water pressure.
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Extensive Biological Testing Conducted to
Prove Cleaning and Disinfection Capabilities
Thoroughly Tested By Renowned US Institutions
Tests were conducted by:
Gayle Macdonald, R.D.H., Ph.D.
University of Southern California School
of Dentistry
Chris H. Miller, Ph.D.
Indiana University
School of Dentistry
John A. Molinari, Ph.D.
University of Detroit Mercy
School of Dentistry
Teresa M. Morton, Ph.D
Eastern Michigan University
Department of Biology
Testing Thermal Disinfection
To prove the disinfection abilities of
the Miele Dental Thermal Disinfector
extensive biological and physical studies
were conducted by renowned institutions
throughout the United States and
Germany. The disinfection parameters
93°C/200°F/10 min. provide high level
disinfection. Although disinfection is not as
absolute as and does not replace
sterilization, it offers a high degree of
protection against infection for dental
professionals. The areas of effectiveness
are removal or inactivation of vegetative
bacteria, microbacteria, fungi, fungal spores,
and viruses. Spores are not inactivated.
In all tests conducted by US institutions,
Hu-Friedy scalers and hemostats as
well as A-dec® evacuation tips were
contaminated with microorganisms and
blood. In some cases, hydroxyapatite
was added to the contamination to
simulate tooth material.
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Eliot I. Sakols, D.M.D., M.S.
Orthodontist
Kenneth W. Stoffers, D.M.D., M.S.
The University of Michigan
School of Dentistry
John M. Young, D.D.S., M.Sc.
The University of Texas at San Antonio
School of Dentistry
All test protocols will be sent upon request.
James L. VandenBosch, Ph.D.
Eastern Michigan University
Department of Biology
The investigators above conducted
scientific tests on the G 7781 Dental Thermal
Disinfector. They do not work for Miele, and
hence do not endorse this product. The
investigators above conducted scientific
tests on the Miele G 7781, the predicate
device to the new G 7881.
Leslie B. Heffez, D.M.D., M.S., F.R.C.D.
University of Illinois
School of Dentistry
Special contribution by:
Nancy Andrews, R.D.H.
Consultant
The microbial challenge was determined
prior to disinfection. Each instrument was
inoculated with up to 500,000,000
microorganisms, usually by submerging
the instruments completely in the
contaminated soil. Up to 12 instruments
constituted a test load, i.e. 6,000,000,000
microorganisms in the wash chamber. To
prove the effectiveness of the machine
when fully loaded, the chamber was then
filled up with uninoculated instruments.
In most cases no microorganisms could
be recultured, indicating that usually
each and every microorganism was
removed or killed.
The following microorganisms were
used to test the Miele Dental Thermal
Disinfector:
• Mycobacterium tuberculosis
ATCC 25177 (H37Ra)
• Enterococcus faecium ATCC 49224
• Pseudomonas aeruginosa
ATCC 15422
• Salmonella choleraesuis ATCC 10708
• Staphylococcus aureus ATCC 6538
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.
In different models which use the
same thermal disinfection parameters
(93°C/200°F/10 min.) the following
microorganisms were tested for:
• Streptococcus faecium ATCC 6057
• Klebsiella pneumoniae ATCC
• Stophylococcus aureus ATCC 5G511
• Escherichia coli ATCC 11229
• M. terrae ATCC 15755
• Proteus vulgaris ATCC
Extensive Biological Testing Conducted to
Prove Cleaning and Disinfection Capabilities
Increasing the Microbial Challenge
To consider the worst case scenario,
these tests were conducted in two
series: one series in which the
instruments were processed in the Miele
Dental Thermal Disinfector immediately
after inoculation; in the second test
series the instruments were dried for 6
hours after inoculation with organisms
and blood, but before processing.
To further increase the challenge, part of
the instruments were scratched both with
a rotating metal brush and with a
grinding stone. The resulting fine and
deep scratches on the surface of the
instruments are hard to clean and
disinfect, and may provide a safe harbor
for
microorganisms.
Nonetheless,
scratched instruments are commonly
used in practice.
Mycobacterium Tuberculosis
Infections with tuberculosis have been
spreading again in the United States during
the last few years. For this reason, special
emphasis was laid upon the disinfection
abilities regarding this organism.
Hinged, hollow, and hand instruments were
inoculated with the Mycobacterium
tuberculosis, strain ATCC 25177, and blood.
The estimated microbial load was 108
organisms per instrument. Three hinged, 3
hollow, and 6 hand instruments constituted
one test load. Both test series with and
without drying were conducted.
challenge of 6 hours drying and
scratched instruments. The inoculum
also contained blood and hydroxyapatite
to simulate tooth material.
Proven Cleaning Abilities
A wide range of cleaning studies have
been conducted utilizing common
dental instruments.
In most cases no organisms could be
recultured, indicating that usually each
and every organism was killed.
One study was conducted with fresh
human blood. This blood was not
defibrinated so that it would clot after a
short time. This certainly represents the
most realistic testing possible. Two test
series were conducted both with
immediate cleaning and with cleaning after
a drying time of 6 hours. Both new and
scratched instruments were utilized.
Enterococcus Faecium
The bacterium E. faecium, ATCC 49224,
was tested in a similar fashion as the
Mycobacterium tuberculosis.
In no cases could any organisms be
recultured. A log-reduction factor of at
least 8 was proved.
Hepatitis B Virus
The HBV cannot be artificially cultured.
Hence, the direct testing of the HBV is
not feasible. However, the Enterococcus
faecium
possesses
similar
heat
resistance properties as the HBV*. E.g.
the German Federal Health Authority
accepts the testing of E. faecium as a
replacement for HBV**.
The Miele Dental Thermal Disinfector
achieves a log-reduction factor of at least
8 for E. faecium.
The results showed that no live organisms
were present after the disinfection cycle,
indicating a log-reduction factor of at least
8. Tuberculocidal action was proved.
HIV
The Human Immunodeficiency Virus (HIV)
causing the Acquired Immunodeficiency
Syndrome (AIDS) is very unstable in the
presence of heat. An American study
shows that HIV is reduced to 1/10
at 60°C/140°F after 24 seconds***. After
10 minutes at this temperature a
log-reduction factor of 25 is achieved. That
means that from 1025 HI viruses it is likely
for 1 virus to survive.
Pseudomonas Aeruginosa
Salmonella Choleraesuis
Staphylococcus Aureus
Tests on these bacteria are required for
disinfectants. These bacteria were tested
for in the Miele Dental Thermal
Disinfector even with the elevated
The Miele Dental Thermal Disinfector
reaches a temperature of 93°C/200°F
and holds it for 10 minutes. Therefore it is
safe to assume that HIV will be reduced
according to a high-level disinfection
standard. For this reason the HIV was not
specifically tested for with this system.
After completion of the cleaning and
disinfection cycle the instruments were
tested for traces of blood residues with
Hemastix. In most cases no blood
residues could be found. In very few cases
residues could be traced in hinges of
hemostats. However, these residues were
close to the detection limit of the test.
Other cleaning tests that were conducted
affirmed the claims of this brochure:
Orthodontic and surgical instruments
taken from actual patient use, dental
instruments inoculated with sheep blood
and hydroxyapatite, and instruments
contaminated with dental cement.
Disinfection Parameters
93°C/200°F/10 min.
The thermal disinfection process relies
upon the two physical parameters
temperature (93°C/200°F, accuracy:
+4°C/7.2°F -2°C/3.6°F) and time (10 min.).
The Miele Dental Thermal Disinfector
strictly adhered to these parameters
throughout the wash cabinet, even fully
loaded. No cold spots could be detected.
*G. Spicher: Zur Desinfektion bei Virushepatitis,
in: German Federal Health, Authority leaflet ”Bundesgesundheitsblatt”, Vol. 22, 1979, No. 617, pp. 114–116.
** G. Spicher, J. Peters: Richtlinie des Bundesgesundheitsamtes zur Prüfung von thermischen Desinfektionsverfahren, in: lbid, Vol. 23, 1980, No. 23, pp. 364–367.
*** J. S. McDougal, L. S. Martin, S. P. Cort, M. Mozen, C. M.
Heldebrant, B. L. Evatt: Thermal Inactivation of the Acquired
Immunodeficiency Syndrome Virus, Human T Lymphotropic Virus-III/Lymphadenopathy-associated Virus, with
Special Reference to Antihemophilic Factor, in: The Journal
of Clinical Investigation, Inc., Vol. 76, August 1985,
pp. 875–877
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Safety and Infection Control for the Dental Staff,
the Dental Patient, and Our Environment
Systematic Protection from Infection
Cleaning: The Most Important Step
Without proper cleaning, sterilization is
not possible. A clean and debris-free
surface is required during steam
sterilization, allowing steam to contact
all instrument surfaces. Tests have
demonstrated that bacteria can survive
a steam sterilization cycle if they are
protected under dried debris. The Miele
Thermal Disinfector provides superior
cleaning, virtually eliminating the need to
manually scrub an instrument.
Disinfection is Not Sterilization
Disinfection is generally a less lethal
process than sterilization. It eliminates
virtually all recognized pathogenic
microorganisms but not necessarily all
microbial forms (e.g. bacterial endospores)
on inanimate objects. Disinfection does
not ensure an overkill, and therefore
disinfection processes lack the margin
of safety achieved by sterilization
procedures. Hence, disinfection processes
cannot replace sterilization.
Disinfection efficiency is measured by the
log-reduction factor. A log-reduction factor
of 1 indicates that from 10 organisms, it is
likely for one organism to survive on
instrument surfaces. The microbial
population is reduced by 90%.
Top photo: Featured is the G 7881 with optional
Stainless Steel Décor Panel.
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A log-reduction factor of 8 means that from
100,000,000 microorganisms, it is likely for
one organism to survive, i. e. the microbial
contamination is reduced by 99.999999%.
The Miele G 7881 Dental Thermal
Disinfector achieves a log-reduction factor
of 8.
Caring for Our Environment
Although environmental concerns should
not decrease infection control standards, it
is always preferable to choose equipment
that provides an environmentally friendly
method. Chemical agents used in thermal
disinfection usually put a lesser burden
on our environment than chemical
disinfectants.
In the interest of maintaining the highest
possible standard of efficiency and
safety, the following steps are widely
accepted by the dental profession:
The Miele Thermal Disinfector is an Integral Part
of Instrument Reprocessing
6 Steps for Hygienic Processing of Instruments
1. Containment and Transportation
Immediately after use, contaminated
instruments are transported safely* in
cassettes or on trays to the sterilization
area. Waste is segregated and disposed
of in appropriate waste receptacles.
2. Cleaning and Disinfection
Instruments and cassettes should be
placed directly into the machine after
use at chairside. The contaminated
instruments can be kept in the machine
for interim dry storage for up to 6 hours.
An automated washing program should
then be selected. This system also offers
an optional drying cycle, which is
recommended.
3. Inspection and Sorting
After cleaning, disinfection, and drying,
the instruments can be safely checked
for normal wear and damage.
4. Preparation for Sterilization
Instruments and cassettes are placed in
sterilization pouches or wrap, and sealed
according to manufacturers directions to
ensure sterilization until use.
5. Sterilization
Packaged instruments are processed
through the complete cycle of a steam
autoclave, chemical vapor sterilizer, or
dry heat sterilizer, according to
manufacturers’ directions for each type
of sterilizer.
6. Storage of Sterile Instruments
It is essential to preserve sterility until
use. Packaged sterilized instruments
may be stored on clean shelves or in
clean drawers.
*Appropriate PPE including gloves, masks, eyewear, and
protective outer lab coat or grown, must be worn while
handling all unsterilized instruments according to the
current OSHA Bloodborne Pathogens Standard.
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Systematic Instrument Care
Instruments Suitable
for Thermal Disinfection
Only instruments that are thermally
stable up to 97°C/206.6°F and corrosion
resistant should be processed in the
disinfector. The majority of dental
instruments consist of high quality
stainless steel. The stainless steel
quality varies depending on the specific
instrument criteria.
Generally, only high-quality stainless steel
instruments are recommended for
cleaning in the Miele Thermal Disinfector.
Miele recommends that instruments
made from aluminum, chrome, nickel,
carbon, or carbide steel, or instruments
that are chrome plated should not be
processed in the machine.
If there are questions regarding the
suitability of any instrument for use in the
G 7881, contact your Miele representative.
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Water Quality
Water quality can sometimes have an
effect on the instruments that are
washed in the Miele Thermal Disinfector.
Some areas of the United States have
better water quality than other areas.
For areas where water quality is
questionable, Miele recommends the
use of an external water purification unit
connected to the DI intake valve on the
back of the unit.
The external purification unit is then able
to supply either DI or reverse osmosis
(RO) water during the final rinse of the
program, virtually eliminating any minerals
or compounds that may be damaging to
the instruments. And through Miele’s
integrated DI intake valve, this pure water
is only used when it is needed, in the final
rinse cycle, greatly reducing the costs
associated with a pure water system.
G 7881 Dental Disinfector
At A Glance
G 7881
• 93o C (~200o F) for 10 minutes for high level disinfection
• Selectable programs for rinsing, cleaning and high level
disinfection
• 106 gallon/minute water circulation for excellent cleaning
• White finish exterior
• Exclusive Miele Décor Panel for integration into cabinetry
• Integrated extra water inlet for DI water, used in areas where
water quality is poor
• Integrated heat exchanger, preventing the release of heat,
humidity and odors in the room
• Can be used in small reprocessing areas
• Integrated water softener
• Audible alarm
• Equipped with dispensing systems for detergent,
neutralizing agent and rinse aid
• Optional liquid dispensing system
• Dimensions:
33.46”H with lid x 23.54”W x 24”D
(32.28”H without removable lid)
• Electric:
208 V 60 Hz, 2 x 30 Amp (convertible to 3 phase, 3 x 20 Amp)
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The Miele Exclusive
Décor Panel
The Modern Dental Practice
As a business owner, you understand
the impact a clean, modern dental
practice has on your patients. You and
your staff take pride in it. You want to
showcase
the
latest
in
dental
technology, yet keep the office
functional
and
streamlined.
The
practice becomes a reflection of both
your professionalism and your talent.
Whether planning a new practice or
enjoying an existing design, the new
G 7881 has your specific practice in mind.
Left photo: Featured is the G 7881 w/ optional
Décor Panel.
Custom Integration
To seamlessly integrate your instrument
reprocessing center with the rest of
your practice, Miele introduces the
exclusive Miele Décor Panel.
This unique feature allows the new
Miele
dental disinfector to blend
seamlessly
with
your
cabinetry,
bringing the polished, professional look
of the rest of your office into your
instrument reprocessing center.
Ease of Installation
The exclusive Miele Décor Panel
feature allows you to match your
dental disinfector to your cabinetry by
simply replacing the two white front
panels on your machine.
Available through Miele or your local
custom cabinet manufacturer, Miele
stocks the most common laminates for
matching the A-dec Preference ICC. For
custom applications, these panels are
available in a full palette of colors and
designs or in stainless steel, providing you
with an exact match for your office and
instrument reprocessing center.
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G 7881 Package #1:
General Dentistry
This equipment package is recommended
for the general dentist who utilizes cassette
systems.
This package of baskets and inserts will
hold 18+ cassettes in the E 523 inserts
(depending on the size), as well as hinged
and other instruments placed in open
mesh tray E 379.
Left photo: Featured is the G 7881 Package # 1
with optional DOS G60/1 liquid detergent
dispenser pump in foreground and G 7896 AW
storage unit in background.
17
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G 7881 Package #2:
Oral Surgery
This equipment package is recommended
for oral surgeons who have a need to
process reusable hollow instruments (i.e.
suction tips) and also use cassettes.
The specially designed O 177/1
basket has 26 jets that will shoot
and detergent up through the inside
hollow instrument, eliminating the
for manual scrubbing with a brush.
upper
water
of the
need
This package of baskets and inserts will
hold 12+ cassettes in the E 523 inserts
(depending on the size), as well as hinged
and other instruments placed in open
mesh tray E 379 and hollow instruments
in the O 177/1 injector basket.
Left photo: Featured is the G 7881 Package
# 2 with optional Stainless Steel Décor Panel.
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Upper and Lower Baskets
O 190
O 177/1
U 874
• The standard upper basket for general
dentistry
• Holds inserts to support cassettes
• Holds inserts for loose instruments
• Built-in spray arm and water coupling
system for optimal spray volume
• Rolls out for easy loading and unloading
• Article No. 69119001
• The standard upper basket for oral
surgery offices cleaning hollow
instruments
• Holds inserts to support cassettes
• Holds inserts for loose instruments
• Rolls out for easy loading and unloading
• 26 jets plus 12 funnels for direct injection
of hollow instruments with inner diameter
of 1/8” or larger
• For cleaning instruments with smaller
inner diameters, replace jets with injection
funnels DRM19 (19mm width)
or DRM 29 (29mm width)
• Right top of basket holds inserts for
cassettes or loose instruments
• Article No. 69187403
• Built-in spray arm and water coupling
system for optimal spray volume
• Rolls out for easy loading and unloading
• Article No. 69117702
20
Individual Inserts
Insert E 523
• Holds various cassettes from small
hygiene to large oral surgery
• Holds 6 or more cassettes
• Fits in O 190 and O 177/1 upper baskets
and U 874 lower basket
• Recommended holder for Hu-Friedy
cassettes
• Cassettes not included
• Article No. 69552301
Half Universal Mesh Tray E 379 (1/2)
Full Universal Mesh Tray E 378 (1/1)
• Holds various hand instruments
• Constructed of 1/16” wire mesh
• Holds various hand instruments
• Constructed of 1/16” wire mesh
• Fits in O 190 and O 177/1 upper baskets
• Insert dimensions:
315/16” H x 71/16” W x 183/32” D
• Article No. 69537901
• Fits in U 874 lower basket
• Insert dimensions:
315/16” H x 183/32” W x 183/32” D
• Article No. 69537801
21
Specialty Inserts
Mesh Tray E 146 (1/6)
Mesh Tray E 363 (1/6)
E 328 Support Insert
• Mesh basket with lid for hand instruments
• Constructed of 1/16” and 1/8” wire
mesh openings
• Mesh basket with lid for hand instruments
• Constructed of 1/32” wire mesh openings
• Small mesh openings make it ideal for
• Upright support of single and
double-ended instruments
• Fits in E 146 and E 363 mesh baskets
• Ideal for larger hinged instruments
requiring maximum water flow
• Fits in E 131 insert
• Insert dimensions:
25/32” H x 57/8” W x 827/32” D
• Article No. 69514601
cleaning thinner pointed instruments
• Fits in E 131 insert
• Insert dimensions:
25/32” H x57/8” W x 827/32” D
• Article No. 69536301
(baskets not included)
• Article No. 69732801
Insert E 131/1
Insert E 130 (1/2)
• Holds up to 5 cassettes or mesh baskets
• Two will fit in a single U 874 lower basket
• For cleaning up to 10 trays
(max. tray size: 63/4” W x 11/4” thick)
• Two can fit in a single U 874 lower basket
• Cassettes not included
• Article No. 69513102
22
• Trays not included
• Insert dimensions:
7” H x 7” W x 171/2” D
• Article No. 69513001
Specialty Accessories
Stainless Steel Base - UE 30-60/60-78
DOS G60/1 Module
G 7896 Storage Cabinet
• 12” height for ergonomic loading and
unloading
• Recommended for freestanding
• Automatically and reliably adds liquid
detergent during each cycle
• Eliminates need for manual fill of the
• Holds up to 4 DOS G 60/1 modules
and 4 chemical storage containers
• A single unit can serve two G 7881s
applications
• Base dimensions:
12” H x 24” W x 24” D
• Article No. 69376009
powder detergent door cup
• Required for liquid detergents and
Detergent Package #2
• Article No. 69747007
G 7896 AE (shown top)
• Stainless steel front, sides and top
• Article No. 69789602
G 7896 AW
• White enamel front and sides,
grey laminate top
• Article No. 69789601
Mounting Kit Floor Brackets
• Prevent machine from falling forward in
freestanding applications
• One kit needed per machine
• Article No. 00253531
Stainless Steel Décor Panel
Limber Maple Décor Panel
• True 304-grade stainless steel
• Article No. PROF304F
• Wilsonart 10734-60
• Article No. PROF10734W
Cool Down Kit
• May be required for locations with
PVC drain plumbing
• Article No. COOL-DOWN KIT
Oyster Gray Décor Panel
Concrete Stone Décor Panel
• Formica 929-5
• Article No. PROF929F
• Formica 7267-58
• Article No. PROF7267F
Sand Stone Décor Panel
Custom Laminate Décor Panel
• Formica 7265-58
• Please allow 6-8 weeks for delivery
• Article No. PROF7265F
• Please call Miele for Article No.
23
24
Detergents
neodisherTM MA
Powder Detergent (10 kg)
neodisherTM FA
Liquid Detergent (5 L)
• Yields approx 300 cycles
• Powder alkaline detergent
• Powder alternative to neodisherTM FA
• Article No. US486876
• Yields approx 100 cycles
• Liquid alkaline detergent
• Liquid alternative to neodisherTM MA
• Requires DOS G60/1 dispensing system
• Article No. US489533
DOS G60/1 Module
• Automatically and reliably adds liquid
detergent during each cycle
• Eliminates need for manual fill of the
powder detergent door cup
• Required for liquid detergents and
Detergent Package #2
• Article No. 69747007
Water Softener Reactivator
• For recharging the on-board water
softener
• Extremely pure reactivator free of any
dyes and additives
neodisherTM Medizym
Near-Neutral pH Liquid Detergent (5 L)
• Yields approx 100 cycles
• Liquid near-neutral pH detergent
• Requires DOS G60/1 dispensing system
• Article No. US404033
neodisherTM N
Acid Neutralizer (5 L)
neodisherTM Mielclear
Rinse Aid (1 L)
• Yields approx 500 cycles
• Liquid neutralizing agent released
• Yields approx 300 cycles
• Protects dental instruments and allows
immediately following the alkaline main
wash cycle
• Restores pH balance in wash chamber
• For use with neodisherTM FA or MA
• Article No. US482433
better drying results
• Article No. US496646
neodisherTM Z
Acid Neutralizer (5 L)
• Yields approx 500 cycles
• Liquid neutralizing agent released
immediately following the main
wash cycle
• For use with neodisherTM Medizym
• Article No. US483033
Left photo: Featured is the G 7881 Package # 1
with optional DOS G60/1 liquid detergent
dispenser pump.
25
26
Technical Data
Control Unit
Control system supplied with five standard programs:
Disinfection Vario 93ºC/200ºF
Disinfection 93ºC/200ºF
Wash
Rinse
Drain
Cleaning Mechanism
Rotary:
Three multi-jet spray arms
Direct Injection:
Drying
Using optional O 177/1 Upper Basket
Flash heat drying using standard sump heating element
Water Softener
Built-in, with adjustable water hardness
Automatic reactivation
Detergent Dispensing
Machine is equipped with a standard powder door cup
An optional automatic dispensing module is available for dispensing of liquid detergents
Main Circulation Pump
Circulation:
106 gal/min (400 l/min)
Construction:
Cabinet and Chamber
ABS plastic impeller and housing
Materials and Construction:
Exterior:
White front panels standard, with optional stainless steel panel or custom panels available
Interior:
Type 304 SS sides, back, and top
Type 316 SS bottom and door
Plumbing Connections
One or two water connections as follows:
Tap
a. Cold water for wash cycles. 5’5” connection hose with 3/4” hose thread unions
DI Source (use optional)
b. 5’6” connection hose with 3/4” hose thread unions
Minimum flow rate of 2.5 gpm/10-147 psi (recommended 25-60 psi)
Minimum flow rate of 2.5 gpm/10-147 psi (recommended 25-60 psi)
Drain Connections
Connection
One 7/8” ID flexible drain hose, 4’7” long
Maximum drain height, 39.4”
Maximum drain length, 13’
Electrical Requirements
Single Phase 208 V, 60 Hz, 2 x 30 Amps
Three Phase 208 V, 60 Hz, 3 x 20 Amps (Available as an optional conversion)
Unit is equipped with a 5’11”, 10 AWG, 3 wire, unterminated power cord
Units are CSA approved (certificate 1319665)
Dimensions
Interior:
18.5”H x 20.5”W x 20.5”D
Exterior:
Noise Level
33.46”H x 23.54”W x 24.0”D (Height is 32.28” without lid)
< 60 dBa
Customizable Décor Panels
Main Panel:
442 mm H x 586 mm W, 1.2 mm thick
Toe Kick Service Panel:
117 mm H x 586 mm W, 1.2 mm thick
Stainless Steel and select Laminate Décor Panels available through Miele. Custom panels available with a 6-8 week delivery time.
27
Miele Professional
9 Independence Way
Princeton, NJ 08540
✆ 800-991-9380
609-419-4241
dentaldisinfector.com
©2006 Miele, Inc.
B999623 04/06
G 7881 Dental Thermal Disinfector
Installation and In-service Manual
1. Examine exterior packaging for damage
●
If damaged, notify carrier and then please call 800-666-0486 for Miele's Returns department.
2. Uncrating instructions
●
Carefully cut the two packing straps.
Lift cardboard box off of machine.
Properly dispose of all packaging materials. All of the protective packaging material is environmentally
safe and can be recycled.
Carefully lift machine from pallet. Do not lift machine by its lid!
●
●
●
3. Remove Operating Instructions manual from the rear of the machine. Save for reference.
Note: You will need the manual and installation diagram for the remaining steps.
4. Open machine door via the emergency release and remove accessory items
(i.e. water inlet filter, drain hose, warranty card, water softener funnel, red empty 5L neutralizer container, steam deflector, etc.)
●
Slowly pull the emergency release cable located at the bottom
of the machine (see illustration).
5. Remove styrofoam blocks from upper basket support and discard
6. Connect drain hose to the rear of the machine using enclosed hose clamp
All plumbing work must be performed by licensed professionals and adhere to all applicable Local, State, and Federal Codes. Note:
plumbing code in certain areas may require the use of the optional Cool Down Kit (Item # Cool Down Kit) to reduce the temperature
of the effluent. Contact Miele Technical Service for ordering and installation information.
●
The drainage system is fitted with a non-return valve which prevents dirty water from flowing back into
the machine via the drain hose.
†
The drainage system must be able to take a minimum drainage flow of 4 gal/min.
†
The onsite drain connection point should be located between 1 ft. (0.3 m) and 3 ft. (1 m) above
the lower edge of the machine.
„
If it is lower that 1 ft. (0.3 m), lay the hose in a curve at a height of at least 1 ft. (0.3 m).
The drain hose is approx. 5 ft. (1.4 m) long, is flexible and has an internal diameter of 7/8 in. (22 mm). It
must not be shortened. Hose clamps are supplied for securing it in position.
The drainage system must not exceed 12 ft. (4 meters).
●
●
The machine should preferably be connected to a separate drainage system such as a standpipe or floor drain.
However, if local code permits the drain hose can be connected to an under-sink ¾" tailpiece.
2
Miele
●
9 Independence Way
●
Princeton, NJ 08540
●
609-419-9898
●
800-991-9380
●
Fax 609-419-4241
●
www.dentaldisinfector.com
7. Either attach proper plug to power cord or hardwire to electrical supply
All electrical work must be performed by licensed professionals and adhere to all applicable Local, State, and Federal Codes.
The machine comes equipped for a connection to 208 V, 60 Hz, 1 phase power supply. It is equipped with a 6ft.
long, 10/3 AWG power cord, without a plug. The installer may either install an electrical plug or hardwire the
machine into an electrical junction box that has been installed on the wall or in a cabinet adjacent to the
machine. It should be connected to the main power supply.
Voltage:
208 V, 1 phase
Possible conversion to three-phase - Contact Miele Technical Support for
additional information. The conversion diagram and the wiring diagram is
secured to the inner side of the service panel.
60 Hz
60 kW
2 x 30 A
Connect to L1 (hot)
Connect to L2 (hot)
Connect to GND (ground)
Frequency:
Rated Load:
Circuit Breaker:
Black:
White:
Green:
WARNING – THIS APPLIANCE MUST BE GROUNDED
The machine must only be operated with the voltage, frequency, and fusing shown on the
data plate located on the rear of the machine and on the plinth (behind the service panel).
8. If applicable, connect the optional DOS G 60/1 power supply and feed hose
(Please refer to DOS G 60/1 Installation Instructions that are shipped with the unit)
Miele
●
9 Independence Way
●
Princeton, NJ 08540
●
609-419-9898
●
800-991-9380
●
Fax 609-419-4241
●
www.dentaldisinfector.com
3
9. Installation & activation/deactivation of the water intake connections
All plumbing work must be performed by licensed professionals and adhere to all applicable Local, State, and Federal Codes.
The Miele G 7881 Dental Disinfector is equipped with both a DI Water intake (marked “H2O PUR”) hose and a
Cold Tap Water intake (marked with a blue sticker) hose. Leading instrument manufacturers recommend a DI
water rinse as the final processing step prior to sterilization. Rinsing with DI water ensures the elimination of
detergent residues and naturally occurring minerals which could lead to instrument stains and corrosion. However,
if water quality is not an issue, the machine can be installed using the Cold Tap Water intake only (see below).
Acceptable water pressure (flow rate) for both intake valves: 10-147 psi each
Recommended water pressure (flow rate) for both intake valves: 25-60 psi each
●
DI Water Intake: ¾"(19 mm) GHT female hose thread, connected to external DI water supply source
Cold Tap Water Intake: ¾"(19 mm) GHT female hose thread, connected to cold tap water source
Use the proper inline cartridge filter: Matte finish for the DI intake, chrome finish for the Cold Tap intake
●
●
1.
2.
3.
4.
Turn off the machine with the "On/Off" button.
Turn the program selector to the "Stop" f position.
Press and hold the "Display” 4 and "Start” 6 buttons at the same time.
Simultaneously turn the machine on with the "On/Off" button.
The current program status "P…" will appear in the display and the "Fill/Drain” indicator will illuminate.
5. Press the "Drying” U button once. "E01" (programming level 1) will appear in the display.
6. Turn the program selector one switch position counter-clockwise (11 o’clock position).
If machine is installed with both the DI Water & Cold Tap Water intakes:
7. Press the "Display” 4 button as many times as necessary until the display shows the number “110.”
Once the number "110" has been reached the G 7881 will activate the DI Intake Valve for the final rinse.
8. Press the "Start” 6 button. "SP" will appear in the display.
9. Press the "Start” 6 button again.
OR:
If machine is installed with only the Cold Tap Water intake:
7. Press the "Display" 4 button as many times as necessary until the display shows the number “111.”
Once the number "111" has been reached the G 7881 will deactivate the DI Intake Valve.
8. Press the "Start” 6 button. "SP" will appear in the display.
9. Press the "Start"6 button again.
The inlet hose must not be shortened or damaged in any way.
10. Adjust the feet to the proper height/Install machine on solid non-carpeted surface
●
Undercounter
Note: Removal of lid not necessary for all undercounter installations.
Š
Š
Š
Š
Š
Open the door, remove fixing screws on the left and right sides using a Phillips head screwdriver.
Pull the machine lid approx. 5mm forwards, lift it upwards, and remove.
Adjust feet to proper height.
Slide machine into place, making sure machine is level in all directions.
Secure machine to the front edge of the worktop using screws to the left and right of the front trim.
Do not use silicone sealant in gaps between the machine & neighboring units.
Š
Secure machine to countertop, making certain to not pinch hoses.
Freestanding
Š
Use Mounting Kit (Item #00253531)
●
11. Install the Steam Deflector if applicable
Note: A Steam Deflector protects the countertop and comes packaged with the unit.
4
Miele
●
9 Independence Way
●
Princeton, NJ 08540
●
609-419-9898
●
800-991-9380
●
Fax 609-419-4241
●
www.dentaldisinfector.com
12. Test the water hardness and activate softener if necessary
Note: If not using water softener, please set and save the water softener setting at 0.
Before using the machine for the first time the water softener should be programmed according to the hardness
of the incoming water. You can determine water hardness with a simple test kit or by contacting your local water
authority.
Note: the G 7881 is set at the factory for a water hardness level of 19 gr/gal (340 ppm). If your hardness level is
other than the factory default then the G 7881 must be reprogrammed to the proper setting. Reference the Water
Hardness Table below for the correct value.
Water Hardness Table
Settings
0-20
0
gr/gal
1-20
1
ppm
CaCo3
20
Settings
21-40
21
gr/gal
21-40
21
ppm
CaCo3
380
ne
neodishe
41
gr/gal
41-60
41
ppm
CaCo3
740
0
2
40
22
22
400
42
42
760
0
3
50
23
23
410
43
43
770
4
4
70
24
24
430
44
44
790
5
5
90
25
25
450
45
45
810
6
6
110
26
26
470
46
46
830
7
7
130
27
27
490
47
47
850
8
8
140
28
28
500
48
48
860
9
9
160
29
29
520
49
49
880
10
10
180
30
30
540
50
50
900
11
11
200
31
31
560
51
51
920
12
12
220
32
32
580
52
52
940
13
13
230
33
33
590
53
53
950
14
14
250
34
34
610
54
54
970
15
15
270
35
35
630
55
55
990
16
16
290
36
36
650
56
56
1010
17
17
310
37
37
670
57
57
1030
18
18
320
38
38
680
58
58
1040
19
19
340
39
39
700
59
59
1060
20
20
360
40
40
720
60
60
1080
A.
Filling the salt reservoir:
Only Miele approved reactivation salt should be used in the G 7881.
Do not use other types of salt, e.g. table salt, agricultural, or gritting salt. These could contain
components which are insoluble in water and could damage the water softener. If in doubt,
consult Miele's Professional Department.
The salt reservoir holds approx. 2.5 kg of salt.
Inadvertently filling the sale reservoir with cleaning agent will damage the water softener.
Before filling, make sure that you are using reactivation salt.
Miele
●
9 Independence Way
●
Princeton, NJ 08540
●
609-419-9898
●
800-991-9380
●
Fax 609-419-4241
●
www.dentaldisinfector.com
5
12. Test the water hardness and activate softener if
necessary (continued)
A.
Filling the salt reservoir
Remove the bottom basket from the machine.
●
Unscrew the salt reservoir cap.
Before filling the salt reservoir with reactivation salt for
the first time, fill it with approx. ¾ gallon of water.
●
Place the funnel provided in place
(see illustration).
●
Carefully fill the reservoir with salt. Displaced
water will run out as it is being filled.
●
Wipe any residual salt off the screw threads
on the socket.
●
Screw the cap on firmly.
●
Immediately after this step: Run the "Rinse" program
to remove any traces of salt from the cabinet.
●
Note: There may be a delay before the "Rinse" program
starts due to the reactivation of the water softener.
B.
Setting the water softener
Turn off the machine with the "On/Off" button.
●
Turn the program selector to the "Stop” f position.
●
Press and hold the "Display" 4 and "Start” 6 buttons at the same time.
Simultaneously turn the machine on with the "On/Off" button. The current program
status "P…" will appear in the display and the "Fill/Drain: indicator will illuminate.
●
Press the "Drying" U button once. "E01" (programming level 1) will appear in the
display.
●
Turn the program selector one switch position clockwise (1 o'clock position).
The number "19" will appear in the display (this indicates the factory water hardness
setting in gr/gal, equivalent to 340 ppm).
●
Press the "Display" 4 button as many times as necessary or hold it in until the
required value (hardness level in gr/gal) appears in the display. Once the number "60"
has been reached the counter will begin again at "0.
●
Press the “Start” 6 button. “SP” will appear in the display.
●
Press the “Start” 6 button again.
●
The setting will now be stored in memory. The display will go
out. For future serving, it is useful to make a note of your water
hardness level.
●
Enter your water hardness level here:
__________ gr/gal
or
__________ ppm
C.
Salt Indicator (see illustration)
Reactivation takes place automatically during a program.
The "Recharging" indicator (#1 in illustration) illuminates.
When the salt reservoir is empty, the "Recharge"
indicator (#2 in illustration) illuminates to remind you
to fill the reservoir.
6
Miele
●
9 Independence Way
●
Princeton, NJ 08540
●
609-419-9898
●
800-991-9380
●
Fax 609-419-4241
●
www.dentaldisinfector.com
13. Prime the pumps
Note: Only use detergent and neutralizer recommended by Miele.
Take care when handling liquid agents and additives as they may contain irritant or corrosive ingredients. Follow the manufacturer's
safety instructions and relevant Health and Safety procedures carefully. Wear protective gloves and goggles.
A.
Priming the neutralizer dispensing system
Turn the program selector to the "Stop” f position.
●
Turn off the machine.
●
Press and hold the "Display" 4 and "Start" 6 buttons at the same time.
Simultaneously turn the machine on with the "On/Off" button.
●
The current program status "P…" will appear in the display and
the "Fill/Drain" indicator will illuminate.
●
Press the "Drying" U button twice, "E02" (programming level) will appear in the
display.
●
Turn the program selector to the 5 o'clock position. "do3" appears in the display.
●
Press the "Display" 4 button. The dispensing system will be primed automatically. "do3"
will appear in the display when priming is finished.
Note: Run the "Rinse" program to dilute and drain away any agents that may remain in the wash cabinet every time the dispensing
system has been primed.
B.
Refilling the neutralizing agent
When the "Neutralizer" indicator illuminates (seen right)
●
Replace the current neutralizer container with
a full one.
●
The indicator light should go out.
●
If the container has been allowed to run dry,
the light will not go out until the priming
process is performed.
C.
Setting & priming the optional DOS G60/1 detergent dispensing system
As a separate option, the G 7881 can be fitted with the DOS G60/1 liquid detergent dispenser.
The DOS unit is supplied with its own installation instruction manual. Follow the instructions for
connecting the dispensing option. Once connected to the G 7881 secure the detergent supply
tube in the detergent bottle.
Setting the detergent dosage
●
●
●
●
●
●
●
Miele
●
Turn the program selector to the "Stop" f position.
Turn off the machine with the "On/Off" button.
Press and hold the "Display" 4 and "Start" 6 buttons at the same time.
Simultaneously turn the machine on with the "On/Off" button.
The current program status "P…" will appear in the display and the "Fill/Drain:
indicator will illuminate.
Press the "Drying" U button twice. "E02" (programming level 2) will appear
in the display.
Turn the program selector to "Wash" (2 o'clock position).
Press the "Display" 4 button as many times as necessary to set the dosage
amount .40 (50 ml).
9 Independence Way
●
Princeton, NJ 08540
●
609-419-9898
●
800-991-9380
●
Fax 609-419-4241
●
www.dentaldisinfector.com
7
13. Prime the pumps (continued)
C.
Setting & priming the optional DOS G60/1 detergent dispensing system (continued)
Turn the program selector to the 1 o'clock position. "do1" appears in the display.
●
Press the "Display" 4 button. The dispensing system will be primed automatically.
"do1" will appear in the display when the priming is finished. Ensure that priming has
occurred by visually inspecting machine chamber for dispensed detergent. If priming
has not occurred, repeat priming step.
●
Press the "Start” 6 button. "SP" will appear in the display.
●
Press the "Start” 6 button again. The setting will now be stored in memory. The
display will go out.
●
After priming, run the "Rinse" program to remove detergent residues from
the wash chamber.
●
Note: If detergent is allowed to become empty, reference G 7881 Operating Instructions for priming the system.
14. Add the rinse aid
Rinse aid is necessary to ensure water does not cling to and leave marks on items during the drying phase. It also
enables items to dry faster after they have been washed. Rinse aid is poured into the storage reservoir and a
pre-set amount is dispensed automatically. The rinse aid reservoir holds approximately 180 ml.
Inadvertently filling the rinse aid reservoir with detergent (including liquid detergent) will
damage the reservoir. To avoid damage and ensure proper results only use Miele
approved rinse aid.
A.
Adding rinse aid
The reservoir must be filled with rinse aid
when the"Rinse Aid" indicator illuminates
(as seen in illustration).
There is also a level indicator for the rinse aid
reservoir on the inside of the door.
●
Open the door fully.
●
●
8
Miele
●
Unscrew the cap (see illustration).
9 Independence Way
●
Princeton, NJ 08540
●
609-419-9898
●
800-991-9380
●
Fax 609-419-4241
●
www.dentaldisinfector.com
14. Add the rinse aid (continued)
A.
Adding rinse aid
Pour rinse aid into the storage container until the level
indicator is dark (see arrow in the illustration). Use a
funnel if necessary.
●
Screw the cap back on and wipe up any
spilled rinse aid. This prevents over-foaming
from occurring during the next program.
●
Wait until the "Rinse aid" indicator on the
control panel illuminates before adding more
rinse agent.
B.
Setting the dosage
The dosage adjuster in the opening as settings
from 1 to 6 (1-6ml) It is factory-set to 3 (3ml).
●
Use a higher setting if spots are left after drying.
●
If surfaces become cloudy and/or streaky,
use a lower setting.
●
15. Load baskets & inserts into the machine
The G 7881 normally requires a top and bottom basket. Various inserts and special baskets are also available for
a wide variety of instruments.
A.
Preparation
Ensure that no acid or solvent residue, especially hydrochloric acid or chlorides, gets
into the wash cabinet.
●
B.
C.
Load the bottom basket
●
Insert lower basket with handle, circled in photo,
facing out of the machine.
●
Add all applicable inserts.
Load the top basket into the wash chamber
Add all applicable inserts.
●
Miele
●
9 Independence Way
●
Princeton, NJ 08540
●
609-419-9898
●
800-991-9380
●
Fax 609-419-4241
●
www.dentaldisinfector.com
9
15. Load baskets & inserts into the machine (continued)
D.
Adjust the top basket coupling
●
Fully insert top basket, ensuring water coupling
connects with water inlet in the top of the
chamber. Not inserted into machine, this water
coupling must be 4-5 mm higher than the water
connection inlet. If it is not, loosen the plastic
nut, push the adapter 4-5 mm higher than the
water connection inlet, and tighten the plastic nut.
16. Décor panel mounting instructions (optional)
1. Remove the Lower Panel from the G 7881 via the
2 mounting screws (A).
D
2. Remove the Lower Panel Décor Frame mounting piece via the
6 phillips head screws (B).
3. Slide out the Lower White Décor Panel and replace it
with the laminate sheet.
4. Replace the Lower Panel Décor Frame mounting piece via the
6 phillips head screws (B). Set Lower Panel aside.
5. Remove the bottom piece of the Upper Panel Décor Frame
via the 3 phillips head screws (C).
6. Open the machine door so side screws are accessible (D).
7. Remove both sides of the Upper Panel Décor Frame via the
3 phillips head screws on each side (D).
8. Slide out the Upper White Décor Panel and replace it with the
laminate sheet.
9. Replace the sides of the Upper Panel Décor Frame via the
3 phillips head screws on each side (D).
10. Close the machine door so bottom screw holes are
accessible (C).
11. Replace the bottom piece of the Upper Panel Décor Frame
via the 3 phillips head screws (C).
12. Replace the Lower Panel on the G 7881 via the two
mounting screws (A).
D
C
B
B
A
A
17. Run the program cycle. Program will take ~50 minutes.
If successful, the G 7881 is now ready to operate
10
Miele
●
9 Independence Way
●
Princeton, NJ 08540
●
609-419-9898
●
800-991-9380
●
Fax 609-419-4241
●
www.dentaldisinfector.com
Technical Data
Control Unit
Control system supplied with five standard programs:
Disinfection Vario 93ºC/200ºF
Disinfection 93ºC/200ºF
Wash
Rinse
Drain
Cleaning Mechanism
Rotary:
Three multi-jet spray arms
Direct Injection:
Using optional O 177/1 Upper Basket
Drying
Flash heat drying using standard sump heating element
Water Softener
Built-in, with adjustable water hardness
Automatic reactivation
Detergent Dispensing
Machine is equipped with a standard powder door cup
An optional automatic dispensing module is available for dispensing of liquid detergents
Main Circulation Pump
Circulation:
106 gal/min (400 l/min)
Construction:
ABS plastic impeller and housing
Cabinet and Chamber
Materials and Construction:
Exterior:
White front panels standard, with optional stainless steel panel or custom panels available
Interior:
Type 304 SS sides, back, and top
Type 316 SS bottom and door
Plumbing Connections
One or two water connections as follows:
Tap
a. Cold water for wash cycles. 5’5” connection hose with 3/4” hose thread unions
Minimum flow rate of 2.5 gpm/10-147 psi (recommended 25-60 psi)
DI Source (use optional)
b. 5’6” connection hose with 3/4” hose thread unions
Minimum flow rate of 2.5 gpm/10-147 psi (recommended 25-60 psi)
Drain Connections
Connection
One 7/8” ID flexible drain hose, 4’7” long
Maximum drain height, 39.4”
Maximum drain length, 13’
Electrical Requirements
Single Phase 208 V, 60 Hz, 2 x 30 Amps
Three Phase 208 V, 60 Hz, 3 x 20 Amps (Available as an optional conversion)
Unit is equipped with a 5’11”, 10 AWG, 3 wire, unterminated power cord
Units are CSA approved (certificate 1319665)
Dimensions
Interior:
18.5”H x 20.5”W x 20.5”D
Exterior:
33.46”H x 23.54”W x 24.0”D (Height is 32.28” without lid)
Noise Level
< 60 dBa
Customizable Décor Panels
Main Panel:
442 mm H x 586 mm W, 1.2 mm thick
Toe Kick Service Panel:
117 mm H x 586 mm W, 1.2 mm thick
Stainless Steel and select Laminate Décor Panels available through Miele. Custom panels available with a 6-8
week delivery time.
Miele
●
9 Independence Way
●
Princeton, NJ 08540
●
609-419-9898
●
800-991-9380
●
Fax 609-419-4241
●
www.dentaldisinfector.com
11
Miele Professional
9 Independence Way
Princeton, NJ 08540
✆ 800-991-9380
609-419-4241
dentaldisinfector.com
©2006 Miele, Inc.
B999617 11/06
D E N TA L W A S H E R
DISINFECTOR GUIDELINES
Instrument Handling
Recommendations
1. After use, all dirty instruments
are placed back in cassettes
or trays. Wipe off all gross
debris and cements/
composites directly after
treatment.
2. Instruments should not be
pre-soaked, rinsed or
hand-scrubbed.
3. Cassettes and/or loose
instruments are placed into
the Miele Dental Washer
Disinfector.
4. The Miele Dental Washer
Disinfector serves as the “dirty
storage area” and will clean
and disinfect instruments that
have been sitting for up to 6
hours. Do not allow dirty
instruments to sit overnight.
5. Recommended cycle:
Disinfection VARIO.
6. Choose optional 10 minute
drying cycle if desired, and
press the Start button.
7. Open the door immediately
after the cycle ends to release
hot air & steam and let
instruments cool.
8. The instruments/cassettes are
safe to handle and ready for
wrapping and sterilization.
9. The sterile instruments should
be stored in dust-sealed
cabinets before their next use.
10. NOTE: Do not leave machine
running when leaving for the
day unless cycle is completed
and door is cracked open.
What Instruments are Suitable to be Processed
in the Dental Washer Disinfector?
Recommended Instruments
All instruments, accessories and
other items that have heat
resistance to a temperature of up
to 95°C/203°F and corrosion
resistance in the presence of heat
and alkalinity
Plastic instruments that can
withstand high temperatures
General high-quality stainless
steel instruments
Non-Recommended
Instruments
Instruments made from
Aluminum, Chrome, Chrome
Plated, Nickel, Carbon or Carbide
Steel
Plastic instruments that cannot
withstand high temperatures
Mirrors
Handpieces
Fiber-optics
Hollow instruments
(aspiration tips, etc.)
Burrs
Cassettes or trays
(stainless steel or resin)
Drill-bits
Hinged instruments (scissors,
forceps, etc.) Place into machine
with the hinge open at 90°
Suction/syringe tips
Grinders
Tip: Ask the instrument
manufacturer for their advice on
the suitability for processing in
this system.
CLEANING AGENTS
Name
What It Does
Directions for Use & Refilling
Tips
Alkaline detergent in powder
form
Facilitates cleaning process
Detergent must be manually added to machine
before every wash cycle.
Pour about 3/4 scoop of powder into the dispenser
on the door before each cycle.
The door of the dispenser should not be blocked
by trays or other devices.
Too much as well as too little detergent may have
adverse cleaning effects.
Detergent is automatically dispensed when used in
conjunction with optional liquid dispensing unit.
Refill when indicator light comes on.
Indicator light comes on before detergent container
is completely empty.
If detergent container becomes completely empty
and air fills the pick-up tubes, it will be necessary to
prime the pumps.
Neutralizing agent will be automatically dispensed
at proper time during wash cycle.
Refill when indicator light comes on.
Indicator light comes on before neutralizer
container is completely empty.
If neutralizing agent container becomes completely
empty and air fills the pick-up tubes, it will be
necessary to prime the pumps.
Mielclear will be automatically dispensed at proper
time during wash cycle.
Unscrew the cap in the door to refill when level
indicator turns light.
Pour Mielclear into storage container in the door
until level indicator darkens.
Make sure that any spillage is wiped off the door
after refilling or run the Rinse cycle immediately
after refilling.
Set machine according to local water hardness.
When Recharge indicator light turns on, refill with
Reactivation Salt. See Operating Instructions for
further instructions.
Run the Rinse Cycle immediately after refilling
water softener to be sure all salt is dissolved.
Consumption of salt is dependent upon local water
hardness.
neodisherTM MA
neodisherTM FA Alkaline detergent in liquid
form
Facilitates cleaning process
Note: Requires optional
automated liquid dispensing
unit
neodisherTM N
Neutralizing agent
Restores pH balance to
prevent instrument corrosion
and prolongs machine life
Mielclear Rinse Aid
Protects instruments against
corrosion
Breaks down surface
tension for faster drying
results
Somat Salt
Reactivation Salt
Activates resin used to
soften water; prevents
instrument corrosion
TROUBLESHOOTING GUIDE
Problem
Cause
Solution
Spotting
(white residue)
Not using water softener
Water softener timer not set properly
Not reactivating water softener properly
Failure to remove gross debris prior to
processing
Determine the water hardness from local water authority.
Set the water softener to appropriate setting using the Operating Instructions handbook.
Replenish reactivation salt as soon as the light comes on according to the instructions in the
Operating Instructions handbook.
Rust (textured
brown deposits
on instruments)
Corrosion from carbon steel instruments
“Fly corrosion” Corrosion spreads from
carbon instruments to stainless steel
instruments
Chlorides in tap water
Do not process carbon steel instruments in the Miele dental washer disinfector.
Separate stainless & carbon instruments throughout the cleaning and sterilization process.
Treat instruments with neodisherTM IR.
Have water tested for chlorides. It may be necessary to get an external water purification
system if chloride level exceeds 50 ppm.
Chloride-Induced
Pitting (points of
corrosion, with a
small hole in the
middle)
Discoloration
(yellowish or
brownish tint on
instruments)
Chemical attack on instruments from
chlorides or other halide ions
Source for chlorides is often tap-water
or use of improper cleaning agents
Have water tested for chlorides. It may be necessary to get an external water purification
system if chloride level exceeds 50 ppm.
Use only Miele approved cleaning solutions.
Remove corrosion with neodisherTM IR or it may be necessary to replace instruments.
Silicates in the water
Treat instruments and the Miele dental washer disinfector wash chamber with
neodisherTM IS.
Unsatisfactory
cleaning results
or white residues
Not using proper procedure:
Dirty instruments stored in machine
longer than 6 hours
Incorrect detergent dosage
Overloaded machine
Spray arm coupling not engaged
Detergent, neutralizer or rinse aid not
being dispensed
Failure to remove gross debris prior to
processing
Do not allow dirty instruments to sit for more than 6 hours.
Check the dosage of the detergent and adjust if necessary. Too little as well as too much
detergent may have adverse cleaning effects.
Place instruments into machine allowing water and detergent to touch every surface.
Do not overload. Make sure the spray arm can easily rotate and is not blocked by any devices.
There should be a tight fit between the coupling and the water inlet connector at the
top of the chamber. Follow directions in the Operating Instructions handbook.
Check dispensing, be sure rinse aid dispenser is filled
Remove gross debris
©2006 Miele, Inc.
QUESTIONS? Call 1-800-991-9380 or email: dental@mieleusa.com
B999649 09/06