Miele G 8072 User manual

Operating instructions
Commercial dishwasher
G 8072
To avoid the risk of accidents or
damage to the machine it is
essential to read these operating instructions
before it is installed, commissioned and used for the
first time.
G
M.-Nr. 05 905 900

Description of the machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Areas of application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
How the dishwasher works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Optional features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Information for the user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Finding your way around the machine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Description of the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Warning and Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Caring for the environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Before using for the first time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Water softener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Everything you need to know about the water softener. . . . . . . . . . . . . . . . . . . . . 16
Programming the water softener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Adding reactivation salt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Salt indicator light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Crockery and baskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Preparing the load for washing, and loading the machine . . . . . . . . . . . . . . . . . . 21
Items which are unsuitable for the dishwasher . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Loading examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fitting the basket carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Adding cleaning agent and rinsing agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Adding powder cleaning agents manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Adding rinsing agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Venting and programming the dispensing system. . . . . . . . . . . . . . . . . . . . . . 25
Venting the liquid dispensing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Programming the dosage for liquid cleaning agent . . . . . . . . . . . . . . . . . . . . . . . 25
Measuring the cleaning agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Changing the brand of liquid cleaning agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Venting the rinsing agent dispensing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Programming the rinsing agent dispensing system . . . . . . . . . . . . . . . . . . . . . . . 28
Monitoring the rinsing agent dosage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
If you are using an external dispensing system . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Programme chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Using the Universal programme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Contents
2

Using special programmes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Short programme for lightly soiled loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Intensive programme for heavily soiled loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Programmes with reduced final rinse temperature . . . . . . . . . . . . . . . . . . . . . . . . 32
Universal programme with reduced final rinse temperature . . . . . . . . . . . . . . 32
Short programme with reduced final rinse temperature. . . . . . . . . . . . . . . . . . 33
Intensive programme with reduced final rinse temperature. . . . . . . . . . . . . . . 33
Changing programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Changing a Special programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Changing from a Special programme to the Universal programme. . . . . . . . . 34
Cancelling a programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Changing the setting for the automatic start mechanism on the hood . . . . . . . . . 35
Self-cleaning programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Switching the dishwasher off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Cleaning and care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Cleaning the filters and cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Correcting minor faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Faults without "Err" in the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Faults with "Err" in the display, without the dishwasher switching off automatically . 41
Faults with "Err" in the display, and dishwasher switches off automatically. . . . . . 42
Error message indicated by the Xcontrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Fault indications on dishwashers with special features. . . . . . . . . . . . . . . . . . . . . 44
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Electrical connection UK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Plumbing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Customer contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Contents
3

Areas of application
This Miele dishwasher is a commercial
machine with a tank system and hood
for washing crockery and cutlery in
restaurants, hotels and other
commercial catering establishments.
How the dishwasher works
After switching the machine on, water is
heated up in the integral boiler. The
tank is gradually filled with the heated
water during the heat-up phase.
The tank system enables the
dishwasher to be used continuously, as
there is a constant supply of water at
the correct temperature available.
During the heat-up phase, the
programme control Xlights up red to
indicate that the machine is not yet
ready. As soon as the water in the boiler
and tank reaches the correct
temperature, the dishwasher is ready to
use, and the programme control X
then shows green.
Crockery is loaded into baskets which
are designed for use in through-feed
dishwashers. The hood is lowered into
the shut position, and the machine is
now ready to use. During use, the
programme control Xlights up blue.
The dishwasher is fitted with an auto-
matic start mechanism on the hood.
Shutting the hood starts the machine on
the last selected programme.
The selected programme remains
active until a different programme is
selected.
The reservoir for the rinsing agent is
separate from the dishwasher, and
rinsing agent is dispensed
automatically as required.
Cleaning agent has to be added either
manually or via an optional liquid
cleaning agent dispenser.
If the hood is lifted whilst the machine is
in use, the programme and water flow
is interrupted until the hood is shut
again.
Optional features
Machines may be fitted with a
dispenser for liquid cleaning agents.
A water softener is also available, in
either an integrated or external version.
Description of the machine
4

Information for the user
It is important that you are fully
conversant with the functioning and
operation of your machine and any
optional features. Take particular note
of:
–the effect of the water temperature
on washing results (see sections
"How the dishwasher works" and
"Preparation")
–the effect of cleaning agents and
rinsing agents on washing results
(see section "Venting and
programming the dispensing
system")
– the importance of clearing the plates
before washing, and the usage of the
individual baskets as well as the
correct loading of crockery and
cutlery into the baskets (see section
"Loading the baskets")
– the importance of correct manual
dispensing of powder detergents
(see section "Adding cleaning agent
and rinsing agent")
Description of the machine
5

Controls
aOn/Off control
bFault light
cUniversal programme control
dBoiler water temperature display *)
eControl for special programmes
fControl for short programme
gControl for intensive programme
hMiele Service Technician’s fault
diagnosis control (for use by a Miele
Service Technician only)
iControl to activate lower temperature
in the final rinse of a programme
jTank water temperature display *)
kSalt refill indicator light
lIndicator light to show low levels of
rinsing agent or liquid cleaning agent
(a dispenser for liquid cleaning
agent is available as an optional
extra)
mControl/indicator light for emptying
tank and self-cleaning programme
*) only by operating programme
controls
Finding your way around the machine
6

7

Description of the machine
aHood
bTop spray arm for rinse
cTop spray arm for main wash
dControl panel
eBottom spray arm for rinse
fReactivation salt reservoir
with optional water softener to the
right at the bottom of the dishwasher
cavity
gBottom spray arm for the main wash
hBasket carrier with adjustable rails
iWater tank with heating element (on
right side wall).
Be careful Danger of burning!
See "Warning and Safety
instructions".
Filter combination
jBasket filter
kWide surface area filter
Finding your way around the machine
8

To the rear:
lWater outlet
mConnection points for optional rinsing
agent (red) and liquid cleaning agent
(blue) dispensers
Right hand side panel:
nWater inlet hose connection point
Finding your way around the machine
9

This machine complies with all
relevant local and national safety
requirements. Incorrect use can,
however, lead to personal injury and
damage to property.
Read the operating instructions
carefully before starting to use this
machine. This way you will avoid the
risk of accidents and damage to the
machine.
Keep these instructions in a safe
place for reference, and pass them
on to any future user.
Correct use
This machine is designed for
commercial use only, as described
in these Operating Instructions.
Alterations to the machine, or using it
for purposes other than those for which
it was designed, are unauthorised and
could cause harm.
The manufacturer cannot be held liable
for damage caused by improper or
incorrect use of the machine.
This equipment is not designed for
maritime use or for use in mobile
installations such as caravans, aircraft
etc. However it may be suitable for
such usage subject to a risk
assessment of the installation being
carried out by a suitably qualified
engineer.
Please pay attention to the following
notes to avoid injury and damage.
This machine should be
commissioned and then maintained
only by a Miele authorised and trained
Service Technician or other suitably
qualified and competent approved
person. Repairs and other work by
unqualified persons could be
dangerous.
Do not install the machine in an
area where there is any danger of
explosion or of freezing conditions.
The electrical safety of this
machine can only be guaranteed if
connected to a correctly installed
earthing system on site. It is most
important that this basic safety
requirement is tested regularly, and
where there is any doubt, the on-site
wiring should be checked by an
electrician.
The manufacturer cannot be held liable
for the consequences of an inadequate
earthing system (e.g. electric shock).
A damaged machine is dangerous.
Switch off at the mains immediately
and call the Miele Service Department
or an authorised and trained Miele Ser-
vice Dealer or other suitably qualified
and competent approved person.
Warning and Safety instructions
10

Personnel operating the machine
should be trained regularly.
Untrained personnel should not be
allowed access to the machine or its
controls.
This machine is not a toy! Do not
allow children to play in or around it
or to operate it. There is a danger that
they could injure themselves or get into
the machine and lock themselves in.
Take care when handling liquid
agents and additives. These may
contain irritant or corrosive ingredients.
Do not use organic solvents as these
could cause an explosion.
Follow all relevant safety procedures
carefully. Wear protective gloves and
goggles. With all chemical agents the
manufacturer’s safety conditions must
be observed.
Avoid inhalation of powder
cleaners. They can cause burning
in the mouth and throat if swallowed, or
inhibit breathing.
The water in the machine must not
be used as drinking water.
Be careful when sorting items with
sharp pointed ends and
positioning them in the machine that
you do not hurt yourself or create a
danger for others operators. Sharp
knives etc. should be placed in baskets
with the pointed ends facing
downwards.
When using this machine in the
higher temperature ranges be
especially careful not to scald or burn
yourself when opening the hood.
Baskets and inserts must be allowed to
cool down before they are unloaded.
Any water remaining in containers
could still be very hot. Empty them into
the wash cabinet before taking them
out.
Do not touch the heating elements
if you open the hood during or
directly after the end of a programme
as you could burn yourself. The
elements remain hot for some time after
the end of the programme.
Never clean the machine or near
vicinity with a water hose or a high
pressure hose.
Before any maintenance or repair
work is carried out, the machine
must be disconnected from the mains
supply by switching off at the mains
isolator or withdrawing the mains fuse.
The following points should be
observed to assist in maintaining
quality standards, to protect users,
and to avoid damage to items being
cleaned.
Only use Miele approved cleaning
agents in this machine. Use of
unsuitable cleaning agents could
adversely affect the components of the
machine as well as items being
cleaned.
Warning and Safety instructions
11

Only use low-foaming cleaning
agents which have been approved
by Miele. Foam can have an adverse
effect on the cleaning process.
Where a chemical additive is
recommended on technical
application grounds (e.g. a cleaning
agent), this does not imply that the
manufacturer of the machine takes
liability for the effect of the chemical on
the items being cleaned.
Please be aware that changes in
formulation, storage conditions etc.
which may not be publicised by the
chemical manufacturer, can have a
negative effect on the cleaning result.
When using cleaning agents and
specialised products it is essential
that the manufacturer’s instructions are
followed. They must only be used for
the purpose for which they are
designed to avoid such dangers as
chemical reactions and material
damage.
The machine is designed only for
operation with water and cleaning
agents. Organic solvents must not be
used in the machine, as there is the
danger under certain circumstances of
explosion. (Although this is not the case
with all organic solvents, other
problems could arise with their use, for
example damage to rubber and
synthetic materials).
In critical applications where very
stringent requirements have to be
met, it is strongly recommended that all
the relevant factors for the process,
such as cleaning agent, water quality
etc., are discussed with the Miele
Application Technology specialists.
The special inserts should only be
used for their specific application.
Empty any containers or utensils
before arranging them in the
machine.
Do not allow any remains of acids
or solvents, and in particular
hydrochloric acid or chloride solutions,
to get into the wash cabinet. Similarly
avoid any materials with a corrosive
effect.
The presence in compounds of any
solvents should be minimal (especially
those in hazard class A1).
To avoid any corrosion damage,
ensure that solutions or steam
containing hydrochloric acid do not
come into contact with the steel outer
casing of the machine.
Please follow the advice on
installation in these instructions
and the separate Installation
Instructions.
Warning and Safety instructions
12

Using accessories
Only use genuine Miele
accessories with this machine.
Consult Miele on the type and
application of such equipment.
Disposing of your old machine
Before disposing of your old
machine first make it unusable.
Disconnect from the mains, cut off the
cable near the machine and any plug
from the cable.
For environmental and safety reasons
ensure the machine is completely
drained of any residual water and
cleaning agent. (Observe safety
regulations and wear safety goggles
and gloves).
Make the door lock inoperative, so that
children cannot accidentally shut
themselves in. Then make appropriate
arrangements for the safe disposal of
the machine.
The manufacturer cannot be held
liable for damage caused by
non-compliance with these Warning
and Safety instructions.
Warning and Safety instructions
13

Disposal of the packing
material
The transport and protective packing
has been selected from materials which
are environmentally friendly for disposal
and can normally be recycled.
Ensure that any plastic wrappings,
bags etc. are disposed of safely and
kept out of the reach of babies and
young children. Danger of suffocation.
Rather than just throwing these
materials away, please ensure that they
are recycled.
Disposal of your old appliance
or machine
Electrical and electronic appliances /
machines often contain materials
which, if handled or disposed of
incorrectly, could be potentially
hazardous to human health and to the
environment. They are, however,
essential for the correct functioning of
your appliance or machine. Please do
not therefore dispose of your old
machine or appliance with your
household waste.
Please dispose of it at your local
community waste collection / recycling
centre and ensure that it presents no
danger to children while being stored
for disposal.
It should be unplugged or disconnected
from the mains electricity supply by a
competent person. The plug must be
rendered useless and the cable cut off
directly behind it to prevent misuse.
See the "Warning and Safety" section of
this booklet for further details.
Caring for the environment
14

Before using for the first time please
pay special attention to the following
points. Detailed information on these
points can be found in the relevant
sections of these Operating
Instructions.
Water softener
For machines without an integral water
softener, a separate water softener is
recommended in areas with a water
hardness ü3 °d (0.5 mmol/l).
Only use cleaning and rinsing agents
formulated for use in this type of
machine.
Dispense these according to the
manufacturer’s instructions. Using less
than advised can adversely affect the
cleaning result.
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.
The filter combination at the base of
the wash cabinet and the spray arms
must be kept clean.
Regular checking and cleaning is
essential.
Before using for the first time
15

Everything you need to know
about the water softener
The water needs to be softened to
avoid calcium deposits building up on
utensils and in the machine itself.
To ensure a steady supply of soft water
the water softener unit must always be:
1. correctly programmed and
2. the salt reservoir must be filled.
If the water hardness level is below
3 °d - German scale (0.5 mmol/l) the
reservoir does not need to be filled
with reactivation salt.
The machine is set at the factory for a
water hardness level of 25 °d (4.5
mmol/l).
If the water supply is harder or softer
than this (including below 3 °d or 0.5
mmol/l) the factory setting will need
to be changed following the
instructions in "Setting the water
softener". See chart on the next
page for settings.
Your local water authority will advise
you on the water hardness in your area.
For future servicing it is useful to make
a note of your water hardness level.
Enter your water hardness level here:
mmol/l / °d
For fluctuating levels e.g. 8 - 17 °d (1.4
- 3.1 mmol/l) set the water softener to
the highest setting. In this example to
17 °d (3.1 mmol/l).
Important
The built-in water softener has settings
from 1 °d - 25 °d (0.2 - 4.5 mmol/l).
Water softener
16

Settings
°d
(German
scale)
mmol/l °f Setting
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*)
0.2
0.4
0.5
0.7
0.9
1.1
1.3
1.4
1.6
1.8
2.0
2.2
2.3
2.5
2.7
2.9
3.1
3.2
3.4
3.6
3.8
4.0
4.1
4.3
4.5
2
4
5
7
9
11
13
14
16
18
20
22
23
25
27
29
31
32
34
36
38
40
41
43
45
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
*) factory setting
Water softener
17

Programming the water
softener
On machines with integral water
softeners, programme the water
softener as follows.
^Press the [control to switch the
machine off.
^Press and hold controls 4,{and
§, and whilst doing so press [to
switch the machine on.
P 19 will appear in the top display
and the total water hardness level will
appear in the bottom display in °d
(25 in the display equates to 25°d or
4.5 mmol/l).
^Press §or °until the required
hardness level shows in the bottom
display.
^Save the reading by pressing the 4
control.
^Press control [to switch the
machine off.
If the water hardness level changes,
enter the new level following the above
instructions.
If the mains water hardness level is
over 25 °d (4.5 mmol/l), please
contact the Miele Professional
Department about an on-site water
softening system.
Water softener
18

Adding reactivation salt
,Only put reactivation salt in the
salt dispenser. Inadvertently filling
the salt reservoir with cleaning agent
will damage the water softener.
Before filling the salt reservoir make
sure that you have selected
reactivation salt to put in it!
,Please only use special coarse
grained reactivation salt with
granules of approx. 1-4 mm. Do not
use other types of salt, e.g. table
salt, agricultural or gritting salt.
These could contain components
which are insoluble in water which
could result in damage to the water
softener. If in doubt consult the Miele
Professional Department.
^Remove the basket from the
machine.
^Remove the basket carrier from the
machine.
^Unscrew the salt reservoir cap.
^Fill the salt reservoir to the brim with
fresh water (only necessary the first
time of using).
^Place the funnel provided in place.
^Fill carefully with 1.5 kg of
reactivation salt. As it is filled
displaced water will run out.
^Remove the funnel.
^Wipe any residual salt off the screw
threads on the socket.
^Screw the cap back onto the salt
reservoir - do not overtighten.
^Re-fit the basket carrier and
^the basket.
^Run the self-cleaning programme Ä
immediately to rinse out any residual
salt.
Water softener
19

Salt indicator light
When the kindicator lights up in the
display, the reactivation salt will need to
be replenished. See "Adding
reactivation salt".
The water woftener runs automatically
during a programme.
Water softener
20