La Rocca Expres Venezia-17 User manual

Venezia-17
User manual
P. Ind. Hacienda Dolores, C/6 – Nave 13
Alcalá de Guadaira – Seville - Spain
p. [phone]
f. [phone]
[email protected]
www.larocca.es

Index
I. Installation .........................................................................................................3
ATTENTION!
NOTICE FOR THE SERVICEMAN
CONNECTING THE MACHINE
II. Switching on ......................................................................................................6
PREVIOUS CHECKS
TURNING ON THE MACHINE
III. Switch off the machine ......................................................................................7
IV. Normal operation...............................................................................................8
ESPRESSO BREWING
DISPENSING HOT WATER
STEAMING AND FROTHING MILK
V. Programming ................................................................................................... 10
BUTTON FUNCTIONS
PROGRAMMING THE DOSAGE
SETTING THE CLOCK
CHECKING THE COUNTERS
VI. Coffee machine cleaning ................................................................................. 13
IMPORTANT:
DAILY CLEANING
WEEKLY CLEANING
STORAGE OF MACHINE
VII. Technical data ................................................................................................. 16
DIMENSIONS

1. MAIN SWITCH
2. STEAMER LEVER 2
3. BOILER PRESSURE GAUGE
4. KEYBOARD GROUP 2
5. LCD DISPLAY
6. KEYBOARD GROUP 1
7. NET PRESSURE GAUGE
8. STEAMER LEVER 1
9. HOT WATER WAND
10. STEAMER WAND 1
11. WORKING TRAY
12. ADJUSTABLE FEET
13. REMOVABLE TRAY
14. FILTERHOLDER GROUP 1
15. FILTERHOLDER GROUP 2
16. STEAMER WAND 2

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 3
Installation
We congratulate with you for your new Venezia. With this purchase you’ve chosen an up to
date machine, built after the most advanced principles of modern technology. A unit which
gives you not only a perfect synthesis of efficiency and functionality, but puts also at your
disposal everything you need for a good working. The advice we give you of spending a bit
of your time in reading this manual comes from our desire of helping you in reaching a good
knowledge of your new machine. We’re sure of finding you of the same advice.
With our best wishes of a good work.
ATTENTION!
Installation, disassembly and setting should be carried out by qualified technical personnel
only.
NOTICE FOR THE SERVICEMAN
1. Carefully read the instruction herein, which contain important information for safe
installation, use and maintenance. Keep this booklet on hand for further reference.
2. This appliance shall only be used for its specific purpose. The manufacturers shall not be
liable for damages due to improper, wrong or unreasonable use.
3. Unpack and check machine. Do not leave packaging components (plastic bags,
expanded polystyrene, nails, etc.) within children's reach, as they represent potential hazards.
4. Prior to plugging in, check that nameplate data correspond with those of the electric and
water mains.
5. The coffee machine should be placed on a stable flat surface with the bodywork at a
minimum distance of 20 mm from the supporting surface and the walls. Furthermore, it must
be installed taking into account that the highest shelf (cup warmer) must sit at a height that
is at least 1.5 meters. Room temperature must range between 0 and 32°C (32÷89.6°F).
6. The (electricity and water) supply connections and a water outlet fitted with a siphon
should be close to the machine. A support surface should also be available for accessories.
7. This appliance is electrically safe only when properly earthed as set forth in the current
electric safety specifications. Check for compliance and, when in doubt, have the wiring
thoroughly inspected by skilled personnel. The manufacturers shall not be liable for any
damage caused by faulty earthing.
8. Using adapters, multiple plugs and cable extensions is not recommended. Should they be
indispensable, use simple or multiple adapters and extensions that comply with the current
safety regulations, take care not to exceed the limit current load shown on simple adapters
and extensions, and the limit power load shown on multiple adapters.
10. To prevent dangerous overheating, uncoil the power cable to its full length.
11. To ensure correct operation and safety, the coffee machine should not be exposed to
outdoor weather conditions (rain, sun, ice).

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 4
12. Do not install in rooms cleaned using water jets. At any rate, avoid cleaning the machine
with water jets.
13. Do not plug or clog the ventilation and heat-exhausting louvres.
14. If the machine’s electrical cord is damaged, it should be replaced. This should only be
done by an authorized service technician.
15. If the machine is stored on premises where the temperature may drop below freezing
point, always empty the boiler and the water circulation pipes.
16. Boxes may be stacked in piles of up to three units of the same model. Do not place other
heavier packages on top of the box.
CONNECTING THE MACHINE
Place the machine on a perfectly levelled surface, adjusting and then fixing the feet in place.
Select a level, dry, strong and stable installation surface at least 110 cm off the floor.
The place where the machine is to be installed must have a connection to the water supply
network, to the sanitation network and a connection to the electricity network with the same
characteristics as those indicated on the data plate of the machine.
Make the hydraulic connections in conformity to the hydraulics safety laws in force in the
country of installation.
If the main pressure could rise above 6 bar, install a pressure reducer calibrated at 2-3 bar
before the softener.
The Installation of the machine to the water mains connection must be done by a qualified
person.
Rinse around 10 liters of water from the main water supply before connecting the machine to
the water connection to clean deposited particles.
Connect the inlet hose that is assembled in the machine (accessible under the working tray)
to the main water supply, which should have a 3/8” male connection fitted with a shut-off
valve, tighten it with a wrench.

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 5
Use safe drinking water with hardness between 5ºfH a n d 8º fH(French hardness degrees). If
the value is below this limit, the presence of corrosion of hydraulic components is a possibility.
If the value is higher than this limit, the presence of lime in the boiler will increase. In both
cases the operation of the machine and coffee quality will be affected negatively.
If water hardness is higher than 8° F, it is advised to install a water softener and, possibly, a
non-return valve before it.
If the machine is fed with water with a hardness of over 8° F, a specific maintenance plan
must be implemented to ensure correct functioning of the machine.
The amount of chlorine in the water must not exceed 100 mg/l; otherwise, install the
appropriate devices.
To connect the machine to the drain net, use the flexible hose that is included in the
accessory box of the machine.
Connect one end of the corrugated tube to the drain cup in the machine; connect the other
to the main drainage tube at the installation area.
Only use the hoses supplied with the machine. Never reuse hoses.
Make sure that the drainage tube is not twisted and ensure that the entire tube has a
descending path.
The coffee machine should only be connected to the power supply by qualified personnel.
The following safety instructions should be followed at all times:
 Check that the electrical specifications on the ratings plate match the specifications
of the power supply at the point of installation.
 The coffee machine must be connected to an earthed socket that complies with the
regulations in force in the country of installation.
 You should protect the electric line of the installation with a circuit breaker switch
appropriated for the power consumption of the machine, specified on its ratings plate.
 A differential circuit breaker must be installed in accordance with the characteristics
of the area of the installation.
 Check the characteristics, power rating of the system and that the diameter of the
cables are suitable for the power used by the machine.
 Do not connect the coffee machine to the power supply via extension boards,
adapters or shared sockets.

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 6
Switching on
PREVIOUS CHECKS
Before switching on the machine, ensure the following:
The mains switch is on.
The water mains tap is open”.
TURNING ON THE MACHINE
Press the master switch (1); the red indicator light “connected machine” switches on. The led
illumination of the working zone of the machine will also switch on.
At the same time, the LCD display (5) will turn on and it will guide you through the initialization
process.
The display shows that the machine is on “OFF” mode. To start working with the machine, you
can turn it on by pressing the double-espresso button of the group 1 (6)
All the dose buttons will light and as the water level in the boiler is less than the minimum
required, the boiler will start filling up to the correct level.
Once the boiler is filled, the machine will start to heat the water in the boiler until the
programmed temperature is reached (120º by default). The display will show the default
message and the current temperature as it rises.
You can use this time to purge the hydraulic circuit of each group by pressing any of the
dose buttons.
You can also insert the filterholders on its placement aligning the flanges with the slots in the
group and rotate it anti-clockwise until the handle is perpendicular to the coffee machine.

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 7
You maybe need to adjust the pump on the meantime:
 Check the pressure on the net pressure gauge (while pouring water from the groups)
it should be on the green zone, pointing to 8/9 bar.
 If the pressure doesn’t match with 8/9 bar, then you should use a flat long screwdriver
to adjust the pump through the hole placed on the left side panel of the machine.
 Turn clockwise to increase the pressure and counter clockwise to decrease the
pressure. Do this adjustment while all the groups are pouring water (use the
continuous dose button)
 Once the pressure is adjusted to 8/9 bar, you can close the hole for the adjustment
with the plastic cap included in the bag of the technical data sheet of the machine.
When the display shows 120ºC the machine is ready to start working. Chapter IV details the
main functionalities of the machine.
Switch off the machine
If you want to turn off the machine, you have to press the continuous button and without
releasing, press the “2 espressos” button.
The illumination of the dose buttons will turn off. The LCD display and the working tray
illumination will remain working. The LCD will show the “OFF” message, the water in the boiler
will stop to be warmed and the machine will remain in this state until the “2 espressos” button
is pressed again or until the scheduled time for its activation.

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 8
WARNING!
Never expose hands and
fingers directly under the
water outlet during
operation to avoid scalding
or serious burns.
If you want a complete switch off of the machine, then press the main switch (1).
If you turn off the machine by pressing the main switch (1), the machine will not be turned on
when the scheduled time for its start arrives.
Normal operation
ESPRESSO BREWING
 Unlock and remove the filterholder from the group.
 Fill the filter basket of the filterholder with ground coffee (the amount may differ
depending of the filter size). For best result use freshly, ground espresso beans.
 Press down the coffee with a coffee tamper.
 Clean the borders of the filter (with a quick movement of the finger or the palm of the
hand, since the filter holder is at a high temperature and can cause burns due to
prolonged contact)
Insert the filled filterholder into the group head and lock it into correct position. Place
one or two cups beneath the outlet spouts.
 Select the desired option from any of the dose buttons and the coffee will start to
pour.
 The LCD will show the selected dose:
 Once the programmed volume of coffee in the cup is reached, the coffee will stop
pouring. If you wish to stop the pouring before the programmed volume, then you
can press any of the dose buttons again to stop it. If you wish to modify the volume
served, go to the “programming the dosage” chapter.

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 9
WARNING!
Never expose hands and
fingers directly under the
water outlet during
operation to avoid scalding
or serious burns.
DISPENSING HOT WATER
Place the teapot or the tea cup under the hot water wand (9) and press
the hot water button dose.
The hot water will start to pour (Once the programmed hot water has been served, then the
machine will stop dispensing hot water. If you want to stop hot water dispensing before the
programmed water has been served, you can press again the hot water button to stop it.
There is a hot water button dose for every group of the machine. Each hot water dose
button can be programmed with a different dose.
STEAMING AND FROTHING MILK
 Place the steam wand (10 or 16) over the working tray and move the steam lever (2
or 8) up or down (following your preference) for a few seconds to allow the
condensed water to be ejected. That is not necessary if the steamer has been used
recently (less than 5 minutes)
 Close the steam tap (take the lever (2or 8)to the middle position) when only steam
comes out (2-3 seconds)
 Let immerse the steam wand (10 or 16) into the milk jug
 Open the steamer by moving again the lever (2or 8) up or down.
 Keep the steam wand immersed while the steam comes out. If you want frothed milk,
then you must have the steamer’s end near the milk surface (be careful, if the
steamer’s end reaches the surface, it will splash, with risk of burns for the user)
 Once the desired temperature or frothed has been reached, close the steamer by
taking the lever to the middle position.
 After the process is finished, put the steam wand over the drip tray and open the
steam tap for a few seconds to clean remains of milk in the wand.
 Close the tap and clean the outside of the steam wand with a damp cloth to prevent
the nozzle blockage.

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 10
Programming
BUTTON FUNCTIONS
While programming, the dose buttons are used with different functions, that usually are the
following:
Out of the programming modes, the dose buttons return to its original functions:
PROGRAMMING THE DOSAGE
To program the different doses of each group, you must do it with the filterholder filled with ground
coffee each time you program a dose in order to get the most accurate programming.
 With the machine on stand-by mode, press the continuous button for 5 seconds until the LCD
shows the following message as the continuous button light start to blink.
 Within the following 30 seconds you have to press the button of the dose that you want to
program, so load the filterholder with ground coffee adequate to this dose and insert it on the
group. Place the cup or cups below the coffee spout. Press once the button of the dose and
wait for the coffee to fill the cup.
 When the desired volume has been reached, press again the dose button and the coffee will
stop pouring. Now the dose is programmed.
 You’ll be back to the programming screen on the LCD. You can program another dose
following the same steps from the “doses settings” screen, or abandon the dose programming
by pressing 3 times the “continuous” button.
 The hot water doses are programmed the same way as a coffee dose.
 All the doses programmed at group 1 will copy to the other groups. If you want different
programming for each group, you must program first the doses of group 1 and then the other
groups.

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 11
SETTING THE CLOCK
To set the clock you must start as the dosage programming, pressing for 5 seconds the
“continuous” button until the “doses settings” screen appears on the LCD.
Then release the “continuous” button and press it once again. The following screen will
appear on the LCD:
Then you must use the keyboard (6) with the features:
First press “Ok” and then it will appear the current time and day of the week. The blinking
value of the hours can be modified with the + or – keys. When the right value is settled, you
can press Ok to accept and the minutes will start to blink. Select again the right value with +
and – and press Ok when the desired minutes are settled.
Finally, set the day of the week the same way, pressing Ok to accept it.
To abandon the programming mode and reach the stand-by screen on the LCD, press twice
the “programming” key.
CHECKING THE COUNTERS
To see the counter values you must start as the dosage programming, pressing for 5 seconds
the “continuous” button until the “doses settings” screen appears on the LCD.
Then release the “continuous” button and press it twice. The following screen will appear on
the LCD:

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 12
Press the “Ok” key to see the first screen:
From now on, press the continuous key to check all the counter pages. Pressing once we get
the liters remaining for the scheduled revision.
Pressing once again we get the total coffees served.
And finally, the counters of every coffee served by every dose of every group of the machine

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 13
Coffee machine cleaning
IMPORTANT:
To obtain the best efficiency, quality and performance of the machine, you should always
follow the cleaning and care instructions provided in this manual.
Turn off the power switch when cleaning the exterior of the machine.
All external surfaces should be cleaned with a wet cloth that will not get out fibres, threads or
scratch the machine.
Do not use aggressive cleaning detergents, solvents or degreasers. They can damage the
finishing of the machine.
DAILY CLEANING
Once a day or after 8 hours from the last dispensing of coffee, the following cleaning tasks
must be performed for maintaining the quality and performance of the water system in the
machine:
Brewing Group: Place the empty filterholder (without coffee) in the group head and dispense
hot water for one minute.
Steam wand: Position the wand outside the drip tray and open the steam lever for around
one minute
Rinse the group and filterholder without detergent. (Only using hot water)
Clean the external surfaces of the machine. Pay special attention to the stainless steel parts.
Clean the steam wand and the water outlet. Be sure that the nozzles are not blocked or half
blocked with for example milk remains. If it’s necessary to clean, be careful not to deform or
damage any of the components.
Clean the drip tray with a brush. You can slowly pour 1L of hot water into the drain cup to
dissolve and remove coffee residue that have accumulated inside the cup and tubes.
Clean the group’s gasket and shower plate.
WEEKLY CLEANING
Clean the brewing group and filterholder with professional cleaning powder :
 Unlock and remove the filterholder from the group head.
 Place the blind filter in the filter holder.
 Fill the blind filter basket with professional cleaning powder for espresso coffee
machines.
 Lock the filterholder into the group head.
 Activate the auto-cleaning program if the machine has the function: (with the
machine on idle-state press the continuous button and without release, press also the
1 espresso button. Auto-cleaning will start automatically. Release the buttons.)
 Repeat the cleaning cycle with all the other groups.

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 14
Important:
Once cleaning process is finished, remove the filterholder and run water through the group
again to rinse out all remains. Repeat the cleaning process this time without detergent for
removal of any remains of the cleaning powder and store the blind filter in a convenient
place.
Cleaning the gasket and shower plate:
When placing the filterholder filled with grinded coffee into the brewing group, left overs will
accumulate in the closing surface. If these remains are excessive it can prevent a good
closing between the filterholder and the group head. Moreover, these remains can even
block the dispensing of water through the group head.
To prevent this perform the following cleaning:
Place the blind filter in the filter holder (without detergent).
Insert the filterholder in the group head, but do not tighten fully (the filterholder should be
loose).
Press the Continuous Dispensing button on the button panel.
Make an opening-closing movement of the filterholder in place without closing it. Water will
now flow around the filterholder, flowing through the closing surface and cleaning it.
Remove the filterholder from the group head.
Clean the shower and gasket with a soft brush to remove any coffee remains.
WARNING!
Take special care to avoid scalding when performing this cleaning operation, as the hot
water used to clean the gasket will spill over the sides of the filterholder.
WARNING!
Do not fully tighten the filterholder. If fully tightened, high-pressure water may spray out and
cause scalding or serious injury.
Remove and insert the filterholder gently.
Never use excessive force to try to close the filterholder.
Important:
Avoid placing wet cups directly on the cup shelf; it may drip into the machine and cause
machine damage.

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 15
STORAGE OF MACHINE
 Make all the cleaning procedures described in this manual.
 Disconnect and roll up the power cord. (This should be performed by a qualified
person).
 Disconnect the inlet hose from the machine to the water mains and empty the boiler.
(This should be performed by a qualified person).
 Clean the drip tray and exterior of the machine.
 Cover / pack the machine and store it in a dry place where it isn’t exposed to bad
weather conditions.
 If the machine is stored on premises where the temperature may drop below freezing
point, always empty the boiler and the water circulation pipes.

LA VENEZIA-17 ESPRESSO MACHINE USER MANUAL 16
Technical data
V
enezia
-
1
7
2
groups
V
enezia-17 3 groups
Automatic machine
-
Programmable doses yes yes
Groups 2 3
Weight (kg) 62 73
Boiler volume (l) 12 17
Power (w) 2,600
3,500 (opt)
3,700
4,500 (opt)
Dimensions (
w
idth
)
730 970
Dimensions (height
)
510 510
Dimensions (depth) 570 570
Built-in pump yes yes
Available finishing Inox/black/white Inox/black/white
Automatic water load in boiler yes yes
2nd steamer yes yes
Programmable hot water yes yes
Cappuccinatore Opt. Opt.
Serial connection to PC Opt. Opt.
DIMENSIONS