Jura 748 User manual

GIGA X8 Instructions for Use
JURA Type 748
KOriginal instructions for use
Before using the machine read the instructions for use.
E

2
Table of contents
Your GIGA X8
Control elements 4
Important information 6
Proper use ......................................................................................................................................................6
For your safety...............................................................................................................................................6
1 Preparing and using for the first time 10
JURA on the Internet....................................................................................................................................10
Operation with touchscreen display and Rotary Switch.......................................................................10
Setting up the machine ...............................................................................................................................11
Filling the bean container............................................................................................................................11
Determining the water hardness ...............................................................................................................11
First-time use ................................................................................................................................................12
Connecting milk...........................................................................................................................................14
Settings by the service technician.............................................................................................................14
Connect accessory (with wireless connection) .......................................................................................15
2 Preparation 16
Ways of preparing a beverage ...................................................................................................................16
Preparing speciality coffees........................................................................................................................18
Preparing two speciality coffees................................................................................................................18
Preparing speciality coffees with milk......................................................................................................18
Caffè Barista and lungo Barista .................................................................................................................19
Ground coffee...............................................................................................................................................19
Activating the grinder selection ...............................................................................................................20
Hot water......................................................................................................................................................22
3 Daily operation 23
Filling the water tank..................................................................................................................................23
Switching on the machine......................................................................................................................... 23
Daily maintenance......................................................................................................................................24
Regular maintenance .................................................................................................................................24
Switching off the machine.........................................................................................................................25
4 Permanent settings in programming mode 26
Product settings .......................................................................................................................................... 27
Setting the consistency of grind ..............................................................................................................29
Automatic switch-off..................................................................................................................................30
Time and date..............................................................................................................................................30
Timer ..............................................................................................................................................................31
Setting the water hardness .......................................................................................................................32
Unit for amount of water / time format..................................................................................................32
Energy-saving mode .................................................................................................................................. 33
Enabling and disabling functions.............................................................................................................34
Language......................................................................................................................................................35
Display brightness.......................................................................................................................................35
Restore factory settings .............................................................................................................................36
Querying information ................................................................................................................................ 37

3
Table of contents
Warnings
JWARNING
JCAUTION
Always take note of any information marked with the words CAUTION or
WARNING and a warning sign. The signal word WARNING draws your
attention to potential serious injury, and the signal word CAUTION to
potential minor injury.
CAUTION CAUTION draws your attention to potential damage to the machine.
Symbols used
TPrompt to take action. This symbol means that you are being prompted to
perform some action.
EInformation and tips to make it even easier to use your GIGA.
‘Espresso’ Display
Symbol description
5 Maintenance 38
Rinsing the machine...................................................................................................................................38
Automatic milk system rinsing.................................................................................................................38
Cleaning the milk system..........................................................................................................................39
Dismantling and rinsing the dual spout.................................................................................................40
Inserting/changing the filter.......................................................................................................................41
Cleaning the machine ................................................................................................................................42
Descaling the machine ..............................................................................................................................43
Cleaning the bean container.....................................................................................................................45
Descaling the water tank ...........................................................................................................................46
6 Display messages 47
7 Troubleshooting 49
8 Transport and environmentally friendly disposal 51
Transport/ Emptying the system..............................................................................................................51
Disposal..........................................................................................................................................................51
9 Technical data 52
10 Index 53
11 JURA contact details/ Legal information 56

4
Control elements
Control elements
2
8
10
14
13
11
3
12
16
15
7
6
19
4
5
1 Bean container with aroma preservation cover
2 Water tank cover
3 Water tank
4 Power switch (back of the machine)
5 Plug-in mains cable(back of the machine)
6 Coffee grounds container
7 Drip tray
8 Cup grille
9 Filler funnel for ground coffee
10 Ventilation slats (Venti Ports)
11 Storage compartment cover
12 Measuring spoon for ground coffee
13 Height-adjustable dual spout
14 Height-adjustable hot-water spout
15 Coffee grounds container cover
(pivoting)
16 Insert for drip tray

5
Control elements
12
3
1 Rotary Switch 2 On/Off button Q (under cover)
3 Touchscreen display
1
2
3
4
Back of the machine
1 Service cover
(open by pressing with your finger)
2 Locking device
3 Sliding catch
4 Service socket with JURA Smart Connect
Accessories
Container for milk system cleaning Spanner with hexagonal hole (for milk system)

6
Important information
Important information
This machine is intended for use by specialist or
trained staff in businesses, light industry and agri-
cultural facilities or for commercial use by non-pro-
fessionals. It should only be used for coffee prepa-
ration and to heat milk and water. Use for any other
purpose will be deemed improper. JURA Elektroap-
parate AG cannot accept any responsibility for the
consequences of improper use.
Before using the machine read these instructions
for use thoroughly and completely and comply
with the instructions they contain. A warranty ser-
vice is not applicable for damage or defects caused
by non-compliance with the instructions for use.
Keep these instructions for use close to the machine
and pass them on to the next user.
The GIGA may only be operated by instructed per-
sons. Non-professionals must be supervised dur-
ing use.
Please carefully read and observe the important
safety information set out below.
To avoid danger of potentially fatal electric shock:
UNever use a machine which is damaged or has
a defective mains cable.
UIn the event of signs of damage, for example if
there is a smell of burning, unplug the machine
immediately from the power supply and con-
tact JURA service.
UIf the mains cable of this machine is damaged
it must be replaced with a special mains cable,
Proper use
For your safety
J

7
Important information
which is available directly from JURA or from
authorised JURA service centres.
UMake sure that the GIGA and the mains cable
are not located close to hot surfaces.
UBe careful to ensure that the mains cable is not
trapped and does not rub against sharp edges.
UNever open and repair the machine yourself.
Do not modify the machine in any way that is
not described in these instructions for use. The
machine contains live parts. If opened, there is
a danger of potentially fatal injury. Repairs
may only be carried out by authorised JURA
service centres, using original spare parts and
accessories.
UTo completely and safely disconnect the
machine from the power supply, first switch
off the GIGA using the On/Off button and then
at the power switch. Only then should you
remove the mains plug from the power socket.
There is a risk of scalds or burns on the spouts.
UPlace the machine out of the reach of children.
UDo not touch any hot parts. Use the handles
provided.
UBe careful to ensure that the dual spout is cor-
rectly installed and clean. If it is incorrectly fit-
ted or becomes blocked, its parts might come
off. There is a danger of parts being swallowed.
A defective machine is not safe and could cause
injury or fire. To avoid damage and any associated
risk of injury or fire:
UNever allow the mains cable to loosely hang
down. The mains cable could pose a tripping
hazard or become damaged.

8
Important information
UProtect the GIGA from environmental influ-
ences such as rain, frost and direct sunlight.
UDo not immerse the GIGA, mains cable or con-
nections in water.
UDo not put the GIGA or any individual parts in
the dishwasher. Only the insert for the drip
tray, including the drip tray itself, and the cof-
fee grounds container are dishwasher-safe.
UBefore cleaning, switch the GIGA off with the
On/Off button. Always wipe the GIGA with a
damp cloth rather than a wet one, and protect
it from prolonged exposure to water splash.
UThe GIGA is not suitable for installation on a
surface where a jet of water can be used.
UThe machine must not be cleaned with a jet of
water.
UOnly connect the machine to the mains volt-
age in accordance with the information on the
rating plate. The rating plate is located on the
underside of your GIGA. Further technical data
is provided in these instructions for use (see
Chapter 9 ‘Technical data’).
UConnect the GIGA directly to a domestic power
socket. Using multi-socket adapters or exten-
sion cords may cause overheating.
UDo not use alkaline cleaning agents; only use
a soft cloth and mild cleaning agents.
UPlease only use original JURA maintenance
products. Use of products that are not explic-
itly recommended by JURA could damage the
machine.
UDo not use any coffee beans treated with addi-
tives or caramelised coffee beans.
UOnly fill the water tank with fresh, cold water.

9
Important information
USwitch the machine off with the On/Off button
if you are going to be absent for a longer
period of time and remove the mains plug
from the power socket.
UChildren may not clean or service the machine
unless supervised by a responsible person.
UDo not allow children to play with the machine.
UKeep children under the age of 8 away from
the machine, or supervise them constantly.
UChildren aged 8 and over may only operate
the machine without supervision if they have
been instructed in how to use it safely. Chil-
dren must be able to recognise and under-
stand the potential dangers arising from incor-
rect use.
People, including children, who
Udo not have the physical, sensory or mental
capabilities to use the machine safely or
Uare inexperienced or lack knowledge in how to
use the machine safely
must be supervised by a responsible person when
using it, or must be instructed in how to use it cor-
rectly.
Safety when handling the CLARIS Pro Smart filter
cartridge:
UFilter cartridges should be kept out of the
reach of children.
UStore filter cartridges in a dry place in the
sealed packaging.
UProtect cartridges from heat and direct sun-
light.
UDo not use damaged filter cartridges.
UDo not open filter cartridges.

10
1 Preparing and using for the first time
1 Preparing and using for the first time
Visit us on the Internet. On the JURA website (www.jura.com) you
will find interesting and up-to-date information on your GIGA and
on every aspect of coffee.
Your GIGA features an intuitive touchscreen display. There are two
ways of operating the touch display:
UTouch
Touch the display with your finger, for example to start coffee
preparation or undertake various settings in programming
mode.
USlide
Move your finger across the display from left to right or from
top to bottom (or vice versa). For example, you can select one
of the speciality coffees in the product selector view or switch
between programme items in programming mode.
Programming with Rotary Switch: Also use the Rotary Switch.
As soon as you turn it, the product selector view is displayed. Also
navigate through the programme items in programming mode and
change various settings.
JURA on the Internet
Operation with
touchscreen display and
Rotary Switch
>>
>>
>>
>>

11
1 Preparing and using for the first time
When setting up your GIGA, please note the following:
UPlace the GIGA on a horizontal surface that is not sensitive to
water (minimum height of 80cm).
UChoose a spot for your GIGA which protects the machine
against overheating. Ensure that the ventilation slats are not
covered.
Coffee beans which have been treated with additives (e.g. sugar),
ground coffee or freeze-dried coffee will damage the grinder.
T Only use roasted, untreated coffee beans to fill the bean con-
tainer.
TRemove the aroma preservation cover.
TRemove any dirt or foreign objects from inside the bean
container.
TFill the bean container with coffee beans and close the
aroma preservation cover.
When you use the machine for the first time, you must set the water
hardness. If you do not know the hardness of your water, you can
find this out first. Use the Aquadur® test strips supplied with the
machine.
THold the test strip briefly (for 1second) under flowing water.
Shake off the water.
TWait for about 1minute.
TYou will then be able to read the degree of water hardness
from the discolouration of the Aquadur® test strip and the
description on the packaging.
Setting up the machine
Filling the bean container
CAUTION
Determining the water
hardness

12
1 Preparing and using for the first time
If the machine is operated with a defective mains cable, there is a
danger of potentially fatal electric shock.
T Never use a machine which is damaged or has a defective
mains cable.
Milk, sparkling mineral water or other liquids can damage the water
tank or the machine.
T Only fill the water tank with fresh, cold water.
Precondition:The bean containers have been filled.
TConnect the mains cable to the machine.
TInsert the mains plug into a power socket.
TSwitch on the GIGA using the power switch on the back of
the machine.
TOpen the cover of the On/Off button.
TPress the On/Off button Qto switch the GIGA on.
‘Sprachauswahl’ / ‘Deutsch’
ETo display more languages, move your finger either down-
wards or upwards in the selection list until the desired lan-
guage comes into focus (e.g. ‘English’).
TTouch ‘Save’.
‘Saved’ appears briefly on the display to confirm the setting.
‘Date’
TEnter the current date (format YYYY/MM/DD).
TTouch ‘Save’.
‘Saved’
‘Units’
TSelect the time format (‘24 hrs.’ or ‘AM / PM’).
TTouch ‘Save’.
‘Saved’
‘Time’
TEnter the current time.
First-time use
JWARNING
CAUTION

13
1 Preparing and using for the first time
TTouch ‘Save’.
‘Saved’
‘Water hardness’
EIf you do not know the hardness of your water, you must find
this out first (see Chapter 1 ‘Preparing and using for the first
time – Determining the water hardness’).
TMove your finger across the display to change the water
hardness setting, e.g. to ‘25°dH’.
TTouch ‘Save’.
‘Saved’
‘Insert filter’
TPlace one receptacle under the dual spout and another
under the hot-water spout.
TRemove the water tank and rinse it with cold water.
TOpen the filter holder.
TInsert the filter cartridge into the water tank, exerting slight
pressure.
TClose the filter holder. It will click into place audibly.
TFill the water tank with fresh, cold water and reinsert the
tank.
EThe machine automatically detects that you have just inserted
the filter cartridge.
‘Filter is being rinsed’, the filter is rinsed. Water flows directly
into the drip tray.
‘System is filling’, water flows out of the dual spout and the
hot-water spout.
‘Empty drip tray’
TEmpty the drip tray and put it back into the machine.
‘Filter operation’ / ‘Saved’

14
1 Preparing and using for the first time
TPlace a receptacle under the dual spout.
‘Machine is heating’
‘Machine is rinsing’, ‘Milk system is being rinsed’. The rinse
stops automatically. The start screen is displayed. Your GIGA
is ready for use.
EIf the filter is active, this is indicated by a blue filter symbol at
the top of the display.
Your GIGA creates fine, creamy, feather-light milk foam with a per-
fect consistency. The most important requirement for frothing milk
is a milk temperature of 4–8°C. We would therefore recommend
using a JURA milk cooler.
TConnect the milk pipe to the dual spout.To do this, attach
the end of the milk pipe to the connector on the right-hand
side of the dual spout.
TConnect the other end of the milk pipe to a milk cooler.
Your authorised JURA service technician can change various set-
tings, e.g.:
UCodes: Four codes can be assigned. For each code, you can
define which programme items are available or disabled. Each
code corresponds to different authorisations. For instance,
you can define that initiation of the maintenance programmes
is disabled using a code.
UActivating/deactivating the ‘Silent Pump’ function (for prepar-
ing hot water)
UChoose not to display the red speedometer symbol for speed
speciality coffees on the start screen.
You can also obtain the following optional accessories for your GIGA
from your JURA service partner:
UCoffee grounds disposal / drip drain set
ULockable bean container
Connecting milk
Settings by the service
technician

15
1 Preparing and using for the first time
Your GIGA is equipped with the JURA Smart Connect. This allows you
to connect the machine wirelessly to a compatible JURA accessory
(e.g. the Cool Control Wireless milk cooler).
EThe Smart Connect can be protected against unauthorised
access using a PIN. Activate the PIN function via the JURA app.
You will find more information at
www.jura.com/smartconnect.
Precondition:The start screen is displayed.
TTouch ‘P’.
‘Machine settings’
TTouch ‘Machine settings’.
‘Switch off after’
TMove your finger across the display until ‘Connect acces-
sory’ is displayed in the centre.
TTouch ‘Connect accessory’.
‘Connect accessory’
TNow follow the instructions on the display to connect the
accessory to the GIGA.
Connect accessory (with
wireless connection)

16
2 Preparation
2 Preparation
Basic information about preparing drinks:
UDuring the grinding operation you can change the coffee
strength of single products. To do this, move your finger
across the display or turn the Rotary Switch.
UDuring preparation you can change the preset amounts (e.g.
amount of water or milk foam). To do this, move your finger
across the display or turn the Rotary Switch.
UYou can stop preparation at any time. To do this, press the
‘Cancel’ button or the Rotary Switch.
Coffee tastes best served hot. A cold porcelain cup cools the bever-
age – and impairs the taste. We therefore recommend prewarming
the cups. The full coffee aroma can develop only in prewarmed cups.
You can purchase a JURA cup warmer from your specialised dealer.
You can make permanent settings for all products in programming
mode (see Chapter 4 ‘Permanent settings in programming mode –
Adjusting the product settings’).
The GIGA offers various ways of preparing a speciality coffee, milk or
hot water.
Preparation using the start screen: Simply touch the desired prod-
uct. The following products are displayed as standard on the start
screen:
Page ‘1/2’ Page ‘2/2’
‘Espresso’
‘Coffee’
‘Caffè Barista’
‘Lungo Barista’
‘Hot water’
‘Cappuccino’
‘Latte macchiato’
‘Portion milk’
‘Jug of coffee’
‘Caffè latte’
‘Macchiato’
‘Flat White’
‘Hot water for green tea’
‘2x Espresso’
‘2x Coffee’
‘Portion milk foam’
Ways of preparing a
beverage

17
2 Preparation
Using the product selector view (Rotary Selection): Only some of
the products you can prepare are shown on the start screen. As soon
as you turn the Rotary Switch, more products are displayed in a
product selector view.
Turn the Rotary Switch or move your finger across the display to
bring the desired product into focus. Touch the product or press the
Rotary Switch to start preparation. The following additional prod-
ucts are shown in the product selector view:
U‘Ristretto’
U‘Special’
U‘Espresso doppio’
U‘Hot water for black tea’
U‘2x Ristretto’
U‘2x Special’
U‘2x Caffè Barista’
U‘2x Lungo Barista’
U‘2x Cappuccino’
U‘2x Latte macchiato’
U‘2x Macchiato’
U‘2x Flat White’
U‘2x Caffè latte’
U‘2x Portion milk’
U‘2x Portion milk foam’
EThe product selector view disappears automatically after
10seconds if no preparation is started.
EThe last product selected always appears first in the product
selector view.
EYou can move any of the standard products programmed in
your GIGA to your preferred position on the start screen and
make it one of your favourites. You can duplicate and person-
alise your favourite speciality coffees by giving them a new
product name and individual settings (e.g. amount and coffee
strength) (see Chapter 4 ‘Permanent settings in programming
mode – Product settings’). Please note that the descriptions
provided in the following sections always refer to the default
settings.

18
2 Preparation
Example:Proceed as follows to prepare one coffee.
Precondition:The start screen is displayed.
TPlace a cup under the dual spout.
TTouch ‘Coffee’.
Preparation starts. The preset amount of water for coffee
flows into the cup.
Preparation stops automatically. Your GIGA is once more
ready for use.
Example:Proceed as follows to prepare two ristretti (using product
selector view).
Precondition:The start screen is displayed.
TPlace two cups under the dual spout.
TTurn the Rotary Switch to view the product selector.
TMove your finger across the display until ‘2x Ristretto’ is dis-
played in the centre.
TTouch ‘2x Ristretto’ to start preparation.
Preparation starts. The preset amount of water for coffee
flows into the cups. Preparation stops automatically. Your
GIGA is once more ready for use.
Your GIGA prepares latte macchiato, cappuccino, flat white and
other speciality coffees with milk at the touch of a button. There is
no need to move the glass or cup.
Example:Proceed as follows to prepare one latte macchiato.
Precondition:The start screen is displayed. Milk is connected to the
dual spout.
TPlace a glass under the dual spout.
TTouch ‘Latte macchiato’.
‘Latte macchiato’, the preset amounts of milk and milk foam
flow into the glass.
EThere is a short interval while the hot milk separates from the
milk foam. This allows the typical layers of a latte macchiato
to form.
Preparing speciality
coffees
Preparing two speciality
c o f f e e s
Preparing speciality
coffees with milk

19
2 Preparation
Coffee preparation starts. The preset amount of water for
espresso flows into the glass. Preparation stops automati-
cally. Your GIGA is once more ready for use.
E15 minutes after preparation, the milk system is automatically
rinsed (see Chapter 5 ‘Maintenance – Automatic milk system
rinsing’). Therefore always place a receptacle under the dual
spout after preparing milk.
To ensure that the milk system in the dual spout always works prop-
erly, you must clean it daily (see Chapter 5 ‘Maintenance – Cleaning
the milk system’).
For the ‘caffè Barista’ and ‘lungo Barista’, the GIGA blends the coffee
with hot water using a special preparation method. This results in a
full-bodied speciality coffee which is particularly easy to digest. You
can change the amount of this additional water (see Chapter 4 ‘Per-
manent settings in programming mode – Adjusting the product
settings’).
Products with a bypass amount of water setting are marked with a
red speedometer symbol in the start screen and in the product
selector.
EYour JURA service technician can set the machine so that the
red speedometer symbol is not displayed next to these ‘speed
speciality coffees’.
EFor products with a set bypass amount of water, it is not pos-
sible to change the fill volume during the preparation process.
You can choose to use another coffee variety, for example decaffein-
ated coffee, with the filter funnel for ground coffee.
Basic information about ground coffee:
UNever add more than two level measuring spoons of ground
coffee.
UUse ground coffee which is not ground too finely. Very fine
coffee can block up the system so that the coffee only comes
out in drips.
Caffè Barista and lungo
Barista
Ground coffee

20
2 Preparation
UIf you did not fill the machine with a sufficient amount of
ground coffee, ‘Not enough ground coffee’ is displayed and
the GIGA stops the operation.
UThe desired speciality coffee must be prepared within approx-
imately one minute after filling with the ground coffee. Oth-
erwise the GIGA stops the operation and is once more ready
for use.
UAll speciality coffees with ground coffee are always prepared
following the same model.
Example:Proceed as follows to prepare one coffee using ground
coffee.
Precondition:The start screen is displayed.
TPlace a cup under the dual spout.
TOpen the cover of the filler funnel for ground coffee.
‘Please add ground coffee’
TPlace one level measuring spoon of ground coffee into the
filler funnel.
TClose the cover of the filler funnel.
The speciality coffees you can prepare with ground coffee
are displayed.
TTouch ‘Coffee’.
Preparation starts. ‘Coffee’ and the fill volume are displayed.
The preset amount of water for coffee flows into the cup.
Preparation stops automatically. Your GIGA is once more
ready for use.
You have the option of configuring the start screen such that the
grinder selection (‘Beans à la carte’) is always displayed. Before each
preparation, you can select which grinder is to be used and therefore
which coffee beans are to be used.
EIf the grinder selection is activated, you can no longer set the
grinder for the individual products in programming mode (in
the ‘Product settings’ programme item).
Activating the grinder
selection