Miele PG 8080 U User manual

Operating instructions
Commercial dishwasher
PG 8080U / PG 8080i
To avoid the risk of accidents or damage to
the appliance, it is essential to read these
instructions before it is installed and used for the
first time.
en-CA
M.-Nr. 09 501 332

Contents
2
Guide to the manual .............................................................................................. 5
Guide to the machine............................................................................................ 6
Machine overview.................................................................................................... 6
Control panel........................................................................................................... 7
Correct application ............................................................................................... 8
Warning and Safety Instructions.......................................................................... 9
Caring for the environment ................................................................................ 15
Energy-saving dishwashing................................................................................... 16
Commissioning.................................................................................................... 17
Opening the door .................................................................................................. 17
Closing the door.................................................................................................... 17
Safety lock............................................................................................................. 17
Display function..................................................................................................... 18
Standard settings .................................................................................................. 19
Before using the commercial dishwasher for the first time you will need: ............ 20
Filling the salt reservoir.......................................................................................... 20
Salt refill reminder.................................................................................................. 22
Rinse aid................................................................................................................ 22
Adding rinse aid .................................................................................................... 23
Rinse aid reminder ................................................................................................ 23
Loading the commercial dishwasher ................................................................ 24
Preparing the load ................................................................................................. 24
Tips:....................................................................................................................... 24
Typical load for 10 place settings with cutlery basket .......................................... 26
Typical load for 13 place settings with cutlery basket .......................................... 27
Upper basket......................................................................................................... 28
XXL cup rack .................................................................................................... 29
Glass rail...........................................................................................................29
Adjusting the upper basket .............................................................................. 30
Lower basket......................................................................................................... 31
Cutlery basket ....................................................................................................... 33
Cutlery insert for the cutlery basket ...................................................................... 33
Operation.............................................................................................................. 34
Detergent............................................................................................................... 34
Adding detergent................................................................................................... 36
Switching on.......................................................................................................... 37
Selecting a program .............................................................................................. 37
Starting a program ................................................................................................ 37

Contents
3
Time display .......................................................................................................... 38
Standby ................................................................................................................. 38
At the end of the program ..................................................................................... 39
Turning off.............................................................................................................. 39
Unloading the commercial dishwasher ................................................................. 39
Interrupting a program........................................................................................... 40
Changing a program.............................................................................................. 40
Additional functions ............................................................................................ 41
Extra drying ........................................................................................................... 41
Delay start ............................................................................................................. 41
Cleaning and care ............................................................................................... 43
Service................................................................................................................... 43
Cleaning the wash cabinet .................................................................................... 43
Cleaning the door and the door seal..................................................................... 44
Cleaning the front of the commercial dishwasher................................................. 44
Checking the filters in the wash cabinet ............................................................... 45
Cleaning the filters................................................................................................. 45
Cleaning the spray arms........................................................................................ 47
Problem solving guide ........................................................................................ 48
Technical problems ............................................................................................... 48
Faults in the water intake or water drain ............................................................... 50
General problems with the commercial dishwasher ............................................. 51
Noises.................................................................................................................... 53
Poor cleaning results............................................................................................. 54
Maintenance ........................................................................................................ 56
Cleaning the water intake filter.............................................................................. 56
Recommendation .................................................................................................. 56
To clean the filter ................................................................................................... 56
Cleaning the drain pump and non-return valve..................................................... 57
Program guide ..................................................................................................... 58
Optional accessories .......................................................................................... 60
After sales service............................................................................................... 61
Program updates................................................................................................... 61
Electrical connection .......................................................................................... 62
Removing the toe kick........................................................................................... 64

Contents
4
Plumbing .............................................................................................................. 66
The Miele WaterProof System............................................................................... 66
Water intake .......................................................................................................... 66
Connecting the drain hose .................................................................................... 68
Technical data...................................................................................................... 69
Settings menu...................................................................................................... 70
"Settings" menu for changing standard settings .................................................. 70
Opening the "Settings "menu................................................................................ 70
Language ........................................................................................................... 70
Water hardness ..................................................................................................... 71
Rinse aid................................................................................................................ 72
AutoOpen .............................................................................................................. 72
Optimize Standby.................................................................................................. 73
Refill reminders...................................................................................................... 74
Brightness ............................................................................................................. 74
Contrast................................................................................................................. 74
Check filters .......................................................................................................... 74
External DOS......................................................................................................... 74
Detergent quantity................................................................................................. 75
Prime DOS............................................................................................................. 75
High temperature final rinse .................................................................................. 76
Water plus ............................................................................................................. 76
Program pre-selection........................................................................................... 76
Demo mode........................................................................................................... 76
Factory default....................................................................................................... 77
To close the Settings menu ................................................................................... 77
Sound emission tests.......................................................................................... 78

Guide to the manual
5
Warnings
Information which is important for safety is highlighted
in a thick framed box with a warning symbol. This alerts
you to the potential danger of injury to people or damage to
property.
Read these warning notes carefully and observe the
procedural instructions and codes of practice they
describe.
Notes
Notes contain information that requires particular attention.
They are highlighted in a thick framed box.
Additional information and comments
Additional information and comments are highlighted in a
box framed with a single black line.
They are not imperative for the operation of the commercial
dishwasher.
Operating steps
Instructions on how to operate the commercial dishwasher
are described step by step in a logical sequence.
Each step is introduced using a black square bullet point.
Example:
 Select the desired setting and press the centre button to
confirm.
Display
Information given via the display of the commercial
dishwasher appears in a special font similar to the display
text.
Example:
When the message End or AutoOpen is visible in the
display ....

Guide to the machine
6
Machine overview
aUpper spray arm (not visible)
bUpper basket
cMiddle spray arm
dAir inlet for drying
eLower spray arm
fFilter combination
gData plate
hChild safety lock in the door handle
(not visible)
iRinse aid reservoir
jDual-compartment detergent
dispenser
kReservoir for reactivation salt

Guide to the machine
7
Control panel
aProgram selection
bDisplay
cStart/Stop button with indicator light
d> additional programs button with
indicator light
e Delay Start button with indicator
light
f+ Extra drying button with indicator
light
g Program selection button
h On/Off button

Correct application
8
This commercial dishwasher complies with current safety requirements.
Inappropriate use can, however, lead to personal injury and damage to property.
To avoid the risk of accidents and damage to the commercial dishwasher,
please read these instructions carefully before using it for the first time. They
contain important information on its safety, installation, use and maintenance.
Keep these instructions in a safe place and pass them on to any future owner.
Correct application
 This commercial dishwasher with its short program run times and
powerful cleaning performance is intended for commercial use in
offices, lunch rooms, clubhouses, workshops, daycares, schools,
large kitchens and similar professional environments.
 This commercial dishwasher is not intended for continuous use.
 This commercial dishwasher is not suitable for the reprocessing of
medical products or devices, e.g. surgical instruments.
 For applications where high temperature sanitizing is required
according to Provincial Food Code, only use a minimum temperature
of 82°C with a holding time of 10 seconds.
 Use this commercial dishwasher only for "Dishwashing" as
defined in the Operating instructions, i.e. for cleaning glassware,
dishes and cutlery. Any other use, conversion or modification is not
permissible and possibly hazardous.
Miele cannot be held liable for damage caused by inappropriate use
or improper operation.
 This commercial dishwasher is intended for stationary, indoor use
only.
 The special inserts are to be used for their specific purpose only.
 Individuals who are incapable of using the appliance safely
because of limited physical, sensory or mental capabilities or lack of
experience or knowledge must not use this appliance without
supervision or instruction by a responsible person.

Warning and Safety Instructions
9
Correct installation
 Do not install this commercial dishwasher in an area where there
is a risk of explosion or freezing conditions.
 To ensure the stability of built-under commercial dishwashers,
they must only be installed beneath a continuous countertop that is
bolted to the adjacent cabinetry.
 In order to reduce the risk of damage from condensation, the
furniture in the area around the commercial dishwasher should be
designed for commercial use.
Technical safety
 This commercial dishwasher must only be installed,
commissioned, repaired and then maintained by Miele Service.
Installation, repair and other work by unqualified persons could be
dangerous and Miele will not be held liable.
 This commercial dishwasher must only be operated by
appropriately trained personnel. They must be instructed and trained
regularly.
 Before using the commercial dishwasher, check it for any
externally visible damage. Under no circumstances should you use it
if it has been damaged. It could be dangerous.
 In the event of a damaged or leaking commercial dishwasher,
switch off at the mains immediately and call the Miele Service
Department.
 Faulty components must only be replaced by genuine Miele
original spare parts. Only when these parts are fitted Miele can
guarantee the safety standards of the appliance.

Warning and Safety Instructions
10
 The electrical safety of this commercial dishwasher can only be
guaranteed when correctly earthed. It is essential that this standard
safety requirement is met. If in any doubt, please have the electrical
installation tested by a qualified electrician. Miele cannot be held
liable for the consequences of an inadequate earthing system (e.g.
electric shock).
 Be sure to follow the installation instructions in this manual and in
the installation diagram.
 Before connecting the appliance, ensure that the connection data
on the data plate (voltage, frequency and fuse rating) match the
mains electrical supply.
 There must be no electrical sockets behind the commercial
dishwasher since the depth of the installation niche may be too small
and there is a danger of overheating if the dishwasher is pushed up
against a plug (see the "Electrical connection" chapter for more
information).
 Do not connect the commercial dishwasher to the mains
electricity supply by a multi-socket unit or an extension cable as they
do not guarantee the required safety of the appliance (e.g. danger of
overheating).
 Do not under any circumstances open the casing of the
commercial dishwasher. Any contact with connections carrying
voltage, or changes in the electrical or mechanical set-up, will
endanger you and may impair the functioning of the appliance.
 The commercial dishwasher must not be used if the electrical
connection cable is damaged. If the cable is damaged it must be
replaced with a special cable available from Miele. For safety
reasons this must only be done by Miele Service.
 The commercial dishwasher must be disconnected from the
mains electricity supply before any maintenance or repair work is
carried out.

Warning and Safety Instructions
11
 The plastic housing of the water connection contains two
electrical valves. The housing must not be immersed in liquids.
 There are electrical wires in the water inlet hose. Do not shorten
the water inlet hose, even if it is too long.
 The integrated Waterproof system offers protection from water
damage, provided the following conditions are met:
– installation has been carried out correctly,
– the commercial dishwasher is properly maintained and parts
replaced where it can be seen that this is necessary,
– the water valve has been closed during longer periods of inactivity
(e.g. whilst on holiday).
The Waterproof system will work even if the commercial dishwasher
is switched off. However, the commercial dishwasher must remain
connected to the electricity supply.

Warning and Safety Instructions
12
Correct use
 This commercial dishwasher is designed for operation with water
and detergents suitable for use in commercial dishwashers only.
Organic solvents or flammable liquid agents must not be used in it.
This could cause an explosion, property damage due to the
destruction of rubber or plastic components, and the resulting
leakage of liquids.
 Only use detergents formulated for use in commercial
dishwashers that are recommended or provided by Miele. Using
unsuitable detergents could adversely affect components in the
commercial dishwasher, as well as items being cleaned.
 Do not sit or lean on the opened door. This could cause the
commercial dishwasher to tip or become damaged.
 After any plumbing work the water pipework to the commercial
dishwasher will need to be vented. If this is not done, components
can be damaged.
 Please be aware that the commercial dishwasher may be
operating at high temperatures. If the door is opened there is a
danger of burning or scalding. Dishes, cutlery, baskets and inserts
must be allowed to cool down before they are unloaded. Empty any
hot water remaining in hollow items into the wash cabinet.
 The water in the cabinet must not be used as drinking water.
 Pre-treating items (for example with dishwashing liquid and other
detergents) as well as some types of soiling and some detergents
can cause a build-up of foam in the wash cabinet. Foam can have an
adverse effect on the cleaning result.
 Foam escaping from the wash cabinet can cause damage to the
commercial dishwasher. If foam escapes the program must be
canceled immediately and the machine must be disconnected from
the electrical supply.

Warning and Safety Instructions
13
 When using detergents and specialized products, it is essential
that the manufacturer's instructions are followed. Detergents must
only be used for the purpose they are designed for and in the
situation specified, to avoid such dangers as serious chemical
reactions and material damage (e.g. oxyhydrogen explosion).
 Avoid inhaling powder detergents! Do not swallow detergents!
Detergents can cause chemical burns to nose, mouth and throat.
Seek medical help immediately if you have inhaled or swallowed any
detergent.
 Miele cannot be held liable for any effect chemical detergents may
have on the material of the items being cleaned. Observe the
detergent manufacturer's instructions with regard to storage
conditions, use and dosage.
 To avoid material damage and corrosion, do not allow any acids,
chloride solutions or corrosive iron materials get into the wash
cabinet.
 Do not wash items soiled with ash, sand, wax, grease or paint in
the commercial dishwasher. These substances could damage the
commercial dishwasher.
 Do not hose the commercial dishwasher or near vicinity down to
clean it, e.g. with a water hose or a pressure washer.
 Ensure that the stainless steel outer casing of the appliance does
not come into contact with solutions or steam containing acid to
avoid any corrosion damage.
 Be careful when sorting items with sharp pointed ends and
positioning them in the commercial dishwasher that you do not hurt
yourself or create a danger for others. Position them so they cannot
cause injury.
 Remove any coarse food deposits and empty out any containers
or utensils before loading them in the commercial dishwasher.

Warning and Safety Instructions
14
Safety with children
 Always supervise any children in the vicinity of the appliance.
Never allow children to play with the appliance. Among other
hazards, children run the risk of locking themselves in the
commercial dishwasher.
 Young children must be kept away from the commercial
dishwasher unless they are constantly supervised.
 Older children may only operate the commercial dishwasher
unsupervised if they have been taught how to operate it safely and
recognize and understand the dangers of incorrect use.
 Keep children away from chemical agents! These contain irritant
and corrosive ingredients which can cause burning in the mouth,
nose and throat if swallowed, or inhibit breathing. Therefore, keep
children away from the commercial dishwasher when the door is
open. There may still be detergent residues in the appliance. Seek
medical help immediately if a child has ingested any chemical
agents.
Accessories
 Accessory parts may only be fitted when expressly approved by
Miele. If other parts are used, warranty, guarantee and/or product
liability claims will be invalidated.
Miele cannot be held liable for damage caused by non-compliance
with these Warning and Safety instructions.

Caring for the environment
15
Disposal of the packaging
material
The cardboard box and packaging
materials protect the appliance during
shipping. They have been designed to
be biodegradable and recyclable.
Recycling the packaging reduces the
use of raw materials in the
manufacturing process and also
reduces the amount of waste in landfill
sites. You can return the packaging to
your Miele dealer.
Disposing of your old
appliance
Old electrical and electronic equipment
often still contain valuable materials.
However, they may also include harmful
substances that were essential for
proper functioning and safe use.
Improperly disposing of these items in
your household waste can be harmful to
your health and the environment.
Therefore, please do not dispose of
your old appliance in your regular
household waste.
Instead, use your local community
waste collection and recycling centre
for electric and electronic appliances.
Contact your dealer for more
information.
Ensure that your old appliance does not
pose a danger to children while being
stored for disposal.

Caring for the environment
16
Energy-saving dishwashing
This commercial dishwasher is
exceptionally economical in is use of
water and electricity. You can make the
most of your machine by following
these tips:
You may connect the commercial
dishwasher to a hot water line. This is
particularly suitable with energy-
saving water heating sources such as
solar energy systems. If the hot water
system is electrically heated and if
loads comprise primarily glassware
we recommend connecting the
appliance to the cold water line.
For most economical dishwashing,
make full use of the baskets without
overloading the dishwasher.
Choose a program that best suits the
degree of soiling and the type of
dishes being washed.
Use the Normal program for energy
saving dishwashing. From the aspect
of combined energy and water
consumption, this program is the
most efficient for washing normally
soiled dishes.
Observe the detergent
manufacturer's recommendations for
detergent dosage.
When using powder detergent, you
can reduce the amount by 1/3 of the
normal dosage if the baskets are only
half full.

Commissioning
17
Opening the door
At the end of programs with a drying
phase (see "Program overview") the
door will automatically open a little in
order to help the drying process.
This function can be deactivated if
preferred (see "Settings menu,
AutoOpen").
To open the door, reach under the
door grip and pull.
If the door is opened during operation,
all functions are automatically
interrupted.
Keep the area around the door
free of obstructions.
Closing the door
Push the baskets in.
Then lift the door upwards and push
until it clicks into position.
Do not put your hand inside the
door as it is closing.
Danger of injury.
Safety lock
To prevent children from opening the
commercial dishwasher door, use the
safety lock to lock the door.
To lock the door, push the slide
underneath the door grip to the right.
To unlock the door, push the slide to
the left.

Commissioning
18
Display function
General
The display is used to select or set the
following:
– the program
– the delay start time
– the settings
During a program, the display shows
the following:
– the program stage
– the estimated time left for the
program to run
– any relevant fault messages and
information
In order to save energy, the
commercial dishwasher will switch to
Standby-mode within a few minutes if
no program is running and no button
is pressed. After several more minutes
it switches off completely (see
"Operating the commercial
dishwasher, Standby").
To turn the commercial dishwasher
back on, press the  button.
Settings menu
The Settings menu allows you to
change machine's electronic to suit
special requirements.
You can access the Settings menu by
pressing a specific button combination.
For further information see "Settings
menu".
In the Settings menu, the normal
functions of the buttons underneath the
display are not active allowing you to
select and confirm menu items with
these buttons.
The left and right arrows in the display
indicate that additional selections are
available. You can use the arrow
buttons underneath the display, as
appropriate, to select these further
options.
Use the centre button underneath the
display to confirm messages or settings
and to switch to the next menu or
submenu.
A check  will appear beside the
option which is currently selected.

Commissioning
19
Standard settings
Switch the commercial dishwasher
on with the  button.
If the commercial dishwasher is being
turned on for the first time, the welcome
screen will appear.
Language
The display will change automatically to
the screen for setting the language.
See the Display functions section for
details.
Select the desired language and
press the centre button to confirm.
A check will appear next to the
language that has been set.
Water hardness
The display changes to the water
hardness setting.
– The commercial dishwasher must be
programmed to exactly match the
hardness of your water.
– Miele Service is able to measure the
exact water hardness on site.
Alternatively contact your local city
water supplier for the water hardness
level in your area.
– Where the water hardness fluctuates
e.g. between 18 - 26 gr/gal (17-
25°d - German scale), always
program the commercial dishwasher
to the higher value (26 gr/gal or 25°d
in this example).
It is useful to know your water hardness
so that you can provide the service
technician with this information in the
event of any service calls.
Enter the water hardness below:
gr/gal / °d
The water hardness factory setting is
programmed at 15 °dH (=16 gr/gal or
2.7 mmol/l).
Select the water hardness level for
your water supply and confirm with
the center button.
See "Settings menu, Water hardness"
for more information.
The following two messages  Refill
rinse aid and  Refill salt may then
appear in the display.
Press any button to confirm these
messages. The display changes to the
"Main menu".

Commissioning
20
Before using the commercial
dishwasher for the first time
you will need:
– approx. 1 kg dishwasher salt for
reactivation,
– approx. 110 ml rinse aid,
– Dishwasher detergent, see
"Operation"
Every commercial dishwasher is
tested at the factory.There may be
residual water in the machine from this
test. This is not an indication that it
has been used previously.
Filling the salt reservoir
In order to achieve good cleaning
results, the commercial dishwasher
needs to operate with soft (low in
calcium deposits) water. Hard water
results in a build-up of calcium deposits
on dishware and in the commercial
dishwasher. Water with a hardness level
higher than 4 gr/gal (4 °d / 0.7 mmol/l)
needs to be softened. This takes place
automatically in the integrated water
softener. The water softener in the
commercial dishwasher is suitable for a
water hardness level of up to 37 gr/gal
(36 °d / 6.5 mmol/l).
See "Settings menu, Water hardness"
for setting the water softener.
If the water in your area is very soft
and constantly lower than 4 gr/gal
(0.7 mmol/l / 4 °d - German scale),
you do not need to add
dishwasher .salt
The water softener must, however,
still be programmed to correspond to
the water hardness level in your area.
Do not fill the salt reservoir with
dishwasher detergent (including
liquid detergent).
Dishwasher detergent will damage
the water softener.
Only use special coarse grained
dishwasher salt for reactivation, or
pure evaporated salt.
Miele Professional offer appropriate
products.
Other types of salt may contain
insoluble additives which can impair
the functioning of the water softener.