Miele G 7881 User Manual

							Please refer to the installation
diagram supplied with the
appliance.
,In order to reduce the risk of
steam damage, the area around the
machine should be limited to
furniture and fittings that are
designed for use in commercial
wash environments.
The washer-disinfector must be in a
stable and level horizontal position.
Use the front screw feet to compensate
for unevenness in the floor or to adjust
the height of the appliance.
Installation options:
–Free-standing
– Slide-in:
Next to other machines or furniture or
in a suitable space. The space must
be at least 60 cm wide and 60 cm
deep.
–
Undercounter:
The washer-disinfector can be
installed under a continuous
countertop.
The recess must be at least 60 cm
wide, 60 cm deep and 85 cm high.
Undercounter installation
To install the machine under a
continuous countertop, the machine lid
can be removed, as follows:
^Open the door.
^Unscrew the left and right fastening
screws.
^Pull the lid forward approx. 5 mm,
then lift it upwards and off.
Washer-disinfectors with a steam
condensor:
To prevent steam damage to the
countertop, the adhesive protective
foil (25 x 58 cm) delivered with the
machine needs to be attached
underneath the counter near the
steam condensor.
Installation
61 
						

							How to position and secure the
machine
To ensure stability the
washer-disinfector must first be aligned
and then secured to the countertop.
^Open the door.
^Screw the washer-disinfector to the
countertop through the left and right
holes in the front trim.
^Do NOT use silicone sealant to seal
the gaps between the
washer-disinfector and any
neighboring units as this would
hinder ventilation to the circulation
pump.
How to protect the countertop
Depending on your requirements for
installation, contact Miele Customer
Service for countertop protection kits.
The underside of the countertop is
protected from steam damage by a
stainless steel plate.Decorative frame and decorative
panel (Option)
The front of the washer-disinfector can
be fitted with a decorative panel to
match the cabinetry.
Decorative panels should only be
exchanged in accordance with all
applicable safety regulations.
Decorative panel dimensions:
Outer door panel H 442 / W 586 mm
Mounting plate H 117 / W 586 mm /
D 1.2 mm thick
Toe kick service panel H 117 mm /
W 586 mm / D 1.2 mm thick
Installation
62 
						

							,All electrical work must be
performed by a suitably qualified
electrician in accordance with local
and national safety regulations.
–Electrical connection should be
made via a suitable isolator with an
on-off switch which should be easily
accessible for servicing work.
–The electrical connection is made
through a receptacle according to
national requirements. The
receptacle has to be easily
accessible after installation.
– For increased safety, it is URGENTLY
recommended to install a protective
switch (30 mA) before the machine.
– To replace the power cord, use only
original Miele replacement parts or a
suitable cord with core cable ends.
– For technical data, see the data plate
or attached wiring diagram.
The machine must only be operated
with the voltage, frequency and fusing
shown on thedata plate.
The machine can be converted
according to the supplied conversion
diagram and wiring diagram.
Thedata plateis located on the rear of
the machine, behind the plinth, on the
plastic cover.Thewiring diagramis secured to the
machine.
See the supplied installation
diagram.
WARNING THIS APPLIANCE
MUST BE GROUNDED
Grounding connection
The ground lead must be connected to
the screw connection point (marked
with the ground symbol) at the back of
the machine.
,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).
Theconversion diagramand the
wiring diagramare located in the
document pouch.
Electrical connection
63 
						

							Connecting to the water inlet
,The water in the machine is NOT
suitable for drinking.
–The machine must be connected to
the water supply in accordance with
local and national regulations.
–For technical application reasons,
the machine is supplied as standard
for connection tocold water only.
The inlet hoses (water inlet and
steam condenser) must only be
connected to the cold water inlets.
See also "DI water connection" (hose
marked H2O pure).
– High iron content can leave a rust
film on stainless steel items and on
the machine itself. If the chloride
content in the domestic water supply
is above 100mg/l, the risk of
corrosion damage to items is greatly
increased.
– Acceptable water pressure (flow
rate): 10 - 147 psi
–
Recommended water pressure (flow
rate): 25 - 60 psi
–
If the water pressure is not in the
range listed above, the "Fill/Drain"
indicator may come on and the fault
code "F..E" will appear in the display.
If this occurs, contact the Miele
Technical Service Department for
advice.–All inlet hoses are approx. 5ft (1.5 m)
long, ending with a 3/4" GHT female
thread. Under no circumstances
should the inlet filters be removed.
–Water valves with 3/4" thread are to
be provided on site. They should be
easily accessible because the water
supply will need to be turned off
when not in use.
–Large surface area filters are
supplied with the machine for
installation between the inlet and the
inlet hose (see illustration under "How
to clean the water inlet filters"). The
large surface area filter for distilled
water is made of stainless steel and
can be recognized by the matte
surface.
,NEVERattempt to shorten or
otherwise compromise the inlet hose
(see illustration).
See the supplied installation
diagram.
Plumbing
64 
						

							DI water connection
The machine is equipped for optional
connection to a DI water supply. When
the water pressure is below the
recommended pressure, the water
intake time is automatically extended.
Acceptable water pressure (flow rate):
10 - 147 psi
Recommended water pressure (flow rate):
25-60psi
^Connect the DI hose (pressure-tested
and marked with "H
2O pure") with 3/4"
GHT male thread to the on-site water
valve for distilled water.
If the DI connection will not be used,
the electronics may need to be
reprogrammed. The water intake
hose then remains at the rear side of
the machine unconnected.The DI water connection should not be
hooked up (or Y connected) to any
water source, it should remain
unconnected, unless DI water is
available. The instructions below
re-program the unit to draw cold tap
water for the final rinse instead of the DI
water.
Access programming mode by
pressing and holding the "Display" and
"Start" buttons while simultaneously
turning the machine on.
^Press "Drying" once and E01
(programming level) will appear in
the display.
^Turn the program knob to the
11 o'clock position (will most likely
display 110).
^110 = Set for DI water intake for final
rinse.
^111 = Always cold water for final
rinse instead of DI water.
^
Press "Display" until 111 appears in
the display.
^
Press "Start" twice to save.
Plumbing
65 
						

							Connect the water drain
–The drainage system is fitted with a
non-return valve which prevents
wastewater from flowing back into
the machine through the drain hose.
–It is best to connect the appliance to
aseparatedrainage system on site.
The on site drain connection point
must be located between 0.3 m (1ft)
and 1 m (3ft)above the lower edge
of the appliance.
If it is lower than 0.3 m, lay the hose
in a curve at a height of at least
0.3 m.
The drainage system must be able to
handle a minimum drainage flow of
16 l/min.
– The drain hose is approx. 1.4 m long
and flexible (internal diameter
22 mm). It must not be shortened.
Use the supplied hose clamps to
secure it into position.
– Longer drain hoses (up to 4 m) can
be ordered through Miele.
–
The drainage system must not
exceed 4 m.
See the supplied installation diagram.
Plumbing
66 
						

							Height including lid
Height without lid85 cm (33 7/16")
82 cm (32 5/16")
Width 60 cm (23 5/8")
Depth
Depth with door open60 cm (23 5/8")
120 cm (47 1/4")
Weight (net) 70 kg (154 lbs)
Voltage / Fuse see data plate
Power cord approx. 1.8 m (5' 11")
Water temperature:
Cold water
DI water connectionmax. 20°C
max. 70°C
Static water pressure max. 145 psi (10 bar)
Min. flow pressure:
Cold water
DI water connection10 - 147 psi (7 - 10 bar)
10 - 147 psi (7 - 10 bar)
Recommended flow pressure:
Cold water
DI water connection025 - 60 psi (1.72 - 4.13 bar)
025 - 60 psi (1.72 - 4.13 bar)
Drain height min. 0.3 m (1 ft), max. 1 m (3.3 ft)
Room temperature 5°C (40°F) to 40°C (104°F)
Relative humidity:
maximum
linear decreasing to80% for temperatures up to 31°C
50% for temperatures up to 40°C
Altitude above sea level up to 1500 m (1640 yds)
Contamination level P2 (as per IEC/EN 61010-1)
Ingress protection rating
(as per IEC 60529)IP20 (ingress of dust)
Noise level in dB (A),
peak LpA for cleaning and drying cycles
						

							Choose your program according to the types of instruments or utensils being
cleaned and the degree of soiling.
Programs
(fixed)Program Description
WashWash program without disinfection.
Rinse (cold)Rinse only.
To rinse items before a wash program, to avoid excessive
foam.
DrainFor draining water out of the machine, e.g. when a program
has been interrupted or the "Fill/Drain" indicator illuminates.
(Turn the program selector to the "Stop"fposition first).
Disinfection
varioRecommended program for protein soils such as blood and
tissue. For cleaning and thermal disinfection at 93C with 10
minutes holding time for stainless steel instruments.
Disinfection
93°C-10’For thermal disinfection and cleaning of stainless steel
instruments at 93C with 10 minutes holding time.
Program guide
68 
						

							Program Sequence
1. Pre-wash 2. Cleaning
and/or
thermal
disinfection
and/or
cleaning3. Interim
rinse I with
Neutralization4. Interim
rinse II5. Final
rinse
1)
and/or
disinfection6. Drying
(extra
program)
XX
Cleaning
60°C/3’XX
Rinse
65°C/1’
(DI)
DOS 2(X)
X
XX
Cleaning
55°C/5’X
DOS 3XX
Rinse and
Disinfection
93°C/10’
(DI)
DOS 2(X)
X
Disinfection
93°C/10’X
DOS 3X
Rinse
75°C/3’
(DI)
DOS 2(X)
X = Sections included in a program (with temperature/temperature holding time)
DOS 2 = For dispensing rinse aid
DOS 3 = For dispensing neutralizer
DI = Deionized water.
Program guide
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