Miele G 7825 Manual

General notes
Problem How to resolve it
If seals, hoses and plastics in the
washer-disinfector suffer damage they
will not be water-tight and will not
function correctly.–Establish the cause of the damage
and rectify it.
See information regarding "Chemical
agents“, "Soiling“ and "Reaction
between chemical agents and soiling“.
Heavy foaming during a programme
affects cleaning and rinsing results.
Foam escaping from the wash cabinet
can cause damage to the
washer-disinfector.
Cleaning processes...

Chemical agents
Problem How to resolve it
The ingredients in chemical agents
have a strong influence on the longevity
and functionality (throughput) of the
dispensing system. The dispensing
system (hoses and pumps) should be
set up for a particular type of chemical
agent.
General types:
–Alkaline to pH neutral products,
–acidic to pH neutral products,
–hydrogen peroxide.–Use Miele approved chemical agents
in this machine.
–Carry out a regular visual check of
the dispensing system for any
damage....

Chemical agents
Problem How to resolve it
The following chemical agents can
cause large amounts of foam to build
up:
–Cleaning agents and rinsing agents
containing tensides,
–emulsifiers.
Foam can occur:
–in the programme block in which the
chemical agent is dispensed,
–in the following programme block if it
has been spilt,
– in the following programme with
rinsing agent if it has been spilt.–Process parameters in the wash
programme, such as dispensing
temperature, dosage concentration
etc. must be set...

Soiling
Problem How to resolve it
The following substances can damage
elastomers (hoses and seals) and
plastics in the washer-disinfector:
–Oil, wax, aromatic and unsaturated
hydrocarbons,
–emollients,
–cosmetics, hygiene and care
products such as creams (analytical
applications).–Refit the washer-disinfector with oil
resistant elastomeres.
–Depending on usage wipe the lower
door seal on the washer-disinfector
periodically with a lint-free cloth or
sponge.
Clean the wash cabinet and
accessories without a...

Reaction between chemical agents and soiling
Problem How to resolve it
Natural oils and fats can be emulsified
with alkaline chemical agents. This can
lead to a heavy build-up of foam.–Where available use the "OEL“
programme.
–This special programme dispenses
emulsifiers (pH neutral) in the
pre-rinse.
–Depending on application use
de-foaming agents that do not
contain silicone oils.
Soiling containing high protein levels
such as blood can cause a heavy
build-up of foam when processed with
alkaline...

Only use agents formulated
specifically for use in
washer-disinfectors and make sure
you follow the manufacturer’s
instructions.
This machine is fitted with 2 dispensers
as standard:
–Dispensing system DOS 1 (blue) to
dispense liquid cleaning agent. It
can dispense up to 120 ml/min.
– Dispensing system DOS 3 (red) to
dispense acid media such as
neutralising agent or rinsing agent. It
can dispense up to 20 ml/min.
Additional optional DOS modules:
– Dispensing system DOS 2 (white) to
dispense acid media...

Preparing the DOS dispensers
The agents can be filled into 10 l plastic
containers, which are colour coded for
the relevant dispensing system.
When first commissioning, or when the
message FILL DOS 1 CONTAINER
and/or FILL DOS 2, 3 or 4 CONTAINER
flashes in the display after switching on
or at the end of a programme, replace
the storage containers with new ones,
or refill them with the relevant agent.
If the message CHECK DISPENSING
SYSTEM 1 and/or CHECK DISPENSING
SYSTEM 2, 3 or 4 flashes in the...

Insert the siphon tube into the
container and screw on securely
(observe the colour code).
Once the storage containers have been
filled the relevant message goes out.
Please remember to refill containers
in good time. Do not let them get
empty. It is best to refill as soon as
the FILL DOS 1, 2, 3 or 4 message
appears in the display.
If a container is not being used, the
level query for the unused
dispensing system can be turned off
to avoid the error message (see
"Machine functions, container...

Venting the dispensing system
Before the washer-disinfector is first
commissioned, and later on if one or
more containers has been allowed to
run dry, the dispensing system(s) for
liquid media will need to be vented. To
do this:
Press theI-0button.
Select operating level B.
Select as required:
Programme DOS1-FILL
Programme DOS2-FILL
Programme DOS3-FILL
Programme DOS4-FILL.
(See "Operation/B. Free programme
selection).
Press the Start button.
The DOS-FILL Service Programmes
are allocated to...

Master switch
The master switch with "emergency
cut-off function" is set toI-ON.
Switching on
Open the stopcocks (if turned off).
Press theI-0button.
In operating levels A, B and D the most
recently selected PROGRAMME NAME
appears in the display and in operating
level C AUTOMATIC MOBILE UNIT
RECOGNITION is displayed.
Door lock
The door can only be opened if:
– the electricity supply to the machine
is switched on,
– the red (emergency cut out) master
switch is in theI-ONposition,
– theI-0On-Off...