La Marzocco Strada MP User Manual

manual

strada mp

Progressive control of water flow and pressure via a mechanical internal valve, thus allowing controlled pre-infusion. La Marzocco‘s classic paddle interface, manually operated by the Barista. With dedicated coffee boilers and pressure gauges for each brew group, the Barista benefits by having real time coffee boiler pressure throughout the extraction.

strada mp

certications available:

Operating Manual V2.0 - 10/2016

MAN.8.1.01

La Marzocco S.r.l.

Via La Torre 14/H Località La Torre 50038 Scarperia e San Piero (Firenze) - ITALIA

www.lamarzocco.com info@lamarzocco.com

T: +39 055 849 191 F: +39 055 849 1990

Chapters

1. General Warnings and Safety Specications

2. Denition of Available Models

3. Installation

4. Machine Operation and Coffee Preparation

5. Dispensing Steam and Hot Water

6. Maintenance and Periodic Cleaning Operations

7. De-commissioning and Demolition

8. Mandatory Maintenance and Check-up Operations

9. Software Programming Guide

page 3

page 7

page 10

page 18

page 21

page 22

page 25

page 26

page 27

1. General Warnings and Safety Specications

WARNING

This machine is for professional use only and should be installed

in locations where its use and

maintenance is restriced to

trained personnel. Children are

forbidden to operate or play with

the machine.

WARNING

The Coffee machine must be

placed in a horizontal position on

a counter higher than 80 cm from

the ground.

WARNING

This machine is not suitable for

outdoor use. Jets of water should

not be used to clean the machine,

nor should it be placed where

water jets are used.

WARNING

As already mentioned in

the preceding notes, the

manufacturer shall not be held

responsible for damage to

objects, animals and/or people

whenever the machine has not

been installed according to the

instructions contained in this

manual, and is not used to do

what it was designed for (i.e.

preparing coffee and hot drinks).

1) Important safeguards

• The weighted sound pressure level of the machine is lower than 70dBA.

• Use, cleaning and maintenance of this coffee

machine are realized

by people (including children more than 8

• Children should be

• Keep the appliance and

2) This operating manual is an integral and essential

part of the product and

years of age) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, as long as they have been given supervision or instructions concerning the use of the appliance by a person responsible for their safety and if they understand dangers.

supervised to ensure that they do not play with the

appliance.

its cord out of the reach of

children less than 8 years

of age.

must be supplied to users. Users are asked to read the enclosed warnings and cautions carefully, as they provide valuable information concerning safety during installation, operation and maintenance. This manual must be kept in a safe place and be available for consultation to new and experienced users alike.

3) Ensure product’s integrity by inspecting the packaging, making sure it presents no signs of damage which might have affected the enclosed

machine.

4) Check the machine’s integrity after having carefully removed the packaging.

Note: In case of doubt, do not go on any further and contact your dealer or retailer immediately. They will send out specialized personnel

authorized to perform service on the espresso machine.

5) Packaging (boxes, plastic bags, foam parts and whatever else) must not be left around within easy reach of children, due to the potential danger it represents, nor be discarded in the environment.

6) Check to see that data on the rating plate corresponds to those of the main electrical supply which the machine will be hooked up to.

7) The equipment must be installed to comply with the applicable federal, state or local electrical and plumbing codes.The installation also must comply to the manufacturer’s instructions, and must be performed by qualied and authorized personnel.

8) Incorrect installation may cause for injury/damages to people, animals or objects, for which the manufacturer shall not be held responsible.

9) Safe electrical operation of this device will be achieved only when the connection to the power outlet has been completed correctly and in observance of all local, national, and international electrical codes and safety regulations, and particularly by grounding the unit. Make sure grounding has been done properly as it represents a fundamental safety requirement. Ensure qualied personnel check such connection.

10) Furthermore, you must ensure that the capacity of the available electrical system

is suitable for the maximum power consumption indicated on the espresso machine.

11) We do not recommend using adapters, multiple plugs and/or extension cords. If you cannot avoid using them, make sure that they are exclusively of the kind which conforms to local, national, and international electrical codes and safety regulations, being careful not to exceed the power and current ratings indicated on such adapters and extension cords.

12) This device must be used exclusively for the functions it has been designed and built for. Any other application is inappropriate and dangerous.

The manufacturer shall not be held responsible for any damages caused by improper and/or irrational use.

This machine should not be installed in kitchens.

13) Using any electrical

device requires that certain fundamental rules be observed. In particular:

• do not touch the device

with wet or humid hands

and feet;

• do not use the device while

having no shoes on your

feet;

• do not use extension cords

in bath or shower rooms;

• do not unplug the device

from the power outlet by pulling on the power supply cable;

• do not expose the device to

atmospheric agents (rain, sun, etc.);

• do not allow children or

untrained people to use this device;

• do not clean the control

panel with a wet cloth since it is not watertight.

14) Before carry5ing out any maintenance and/or cleaning operations, turn the main switch, which is located on the front left of the machine, to the “0” or “OFF” position, and disconnect the machine from the electrical network by unplugging the cord or by switching off the relative circuit breaker. For any cleaning operation, follow exclusively the instructions contained in this manual.

15) In case the machine is

operating in a faulty manner or breaks down, disconnect it from the electrical network (as described in the preceding point) and close the water supply valve. Do not attempt to repair it. Contact a qualied

and authorized professional to perform any repair. Any repairs must be performed exclusively by the manufacturer or by an authorized centre using only original parts. Non compliance with the above could compromise the safe operation of the machine.

16) You should plan to make use of an omnipolar connector during installation, as required by local, national, and international electrical codes and regulations.

17) In order to avoid dangerous overheating problems, it is recommended that the power supply cable be fully unfurled.

18) Do not obstruct air intake and exhaust grilles and, in particular, do not cover the cup warmer tray with cloths or other items.

19) The machine’s power supply cable must not be replaced by users. In case the power supply cable becomes damaged, shut off the machine and disconnect the machine from the electctrical network by switching off the relative circuit breaker and close off the water supply; to replace the power supply cord, contact qualied professionals exclusively.

20) Common Dimensions, Weights, and Features

A B

STRADA MP

A [mm]

B [mm]

C [mm]

WEIGHT [kg]

2 groups

800

675

475

3 groups

1000

675

475

2. Denition of Available Models

This operating manual refers exclusively to the following models, of our own manufacture:

STRADA, Model MP 3 groups

2 3

444

10 11121212 13

Fig. 1 - Model MP with 2 or 3 groups

67 889 9

Legend

1 Main Switch

2 Pressure Gauge (steam boiler)

3 Pressure Gauge (coffee boiler)

4 Brew Groups

5 Encoder

6 Tea Water Button

7 Digital Display

8 Steam Wand

9 Steam Wand Lever

10 Hot Water Wand

11 Removable Drain Tray

12 Manual Brew Paddle Lever

13 Hot Water Mix Valve

For additional information on electronics, keypads, and software programming, please see the section entitled Software Programming your Espresso Machine.

1) General Description

The machine is built in 2 and 3 coffee group versions and is essentially composed of the following parts:

• Steam Boiler (produces steam and hot water);

• Coffee (“saturated”) boiler;

• Brewing groups;

• Exterior Cover;

• Water pump.

2) Description of the various parts

• Steam Boiler

The Steam Boiler consists of a cylindrical tank, of varying length according to the number of coffee groups, which is made of AISI 300 series stainless steel. Each unit is subjected to a hydraulic test, at a pressure of 6 bar, and has an operating pressure of 1.3-1.5 bar. The following is a list of effective volumes and power ratings according to the number of groups installed:

2 groups 8,2 liters 3000 Watts 3 groups 11,8 liters 4000 Watts

Covers are welded at either end of the cylindrical tank and on one of them there is a housing for the water heating element, which allows the steam boiler to reach operating pressure within approximately 25 minutes. Operating pressure is

maintained by temperature probe. The steam boiler has various ttings used for safety devices, for supplying hot water and steam, and for the heating element.

Composed of AISI 300 series stainless steel tube. Heating is accomplished through an immersion-type plated heating

element.

• Operating pressure of 1.3-1.5 bar, controlled automatically through a pressure switch or a temperature probe, adjusted to open the heating element supply circuit at 1.5 bar and close it at 1.3 bar.

• The pressure is displayed by means of a pressure gauge with a scale of 0 to 2 bar.

• Safety device, based on an expansion type mechanical valve, with counteracting spring adjusted to 1.8 bar.

• Testing: hydraulic test at 4.5 bar performed on ready-to-use small boilers, at our factory.

• Coffee Boiler

The Coffee Boiler consists of a cylindrical tank made of AISI 300 series stainless steel. One each group (hot water generator for brewing coffee). Each unit is subject to a hydraulic test, at a pressure of 18 bar, and has an operating pressure of 9 bar. The following

is a list of effective volume and power ratings according to the number of groups installed:

2 groups 2 x 1,3 liters 2 x 800 Watts 3 groups 3 x 1,3 liters 3 x 800 Watts

Covers are installed at either end of the cylindrical tank and on one of them there is housing for the water heating elements. The temperature of the coffee boiler is maintained by an electronic temperature controller (PID capable) with an accuracy of 0.2°C. The brewing groups are installed on the boiler. Composed of an AISI 300 series stainless steel tube. Heating is accomplished through an immersion-type plated heating

element.

• Operating temperature 95°C (adjustable), controlled automatically by an electronic temperature controller with an accuracy of 0.2 °C. Operating pressure of 9 bar, developed mechanically by a special positive-displacement pump which is activated automatically every time coffee is brewed.

• Pressure is displayed through a pressure gauge with a scale from 0 to 15 bar.

• Safety device, based on an expansion type mechanical valve, with counteracting spring adjusted to 13.5 bar.

• Testing: Hydraulic test at 18 bar performed on ready-to-use small boilers, at our factory.

• Brewing groups

They consist of a precision casting made of stainless steel. The brewing group accepts the portalter used to hold the ground coffee; the espresso ows through the brewing group, through the portalter basket, through the portalter spout, and into the cup(s) after the brewing button has been pressed.

• Exterior cover

The exterior consists of painted and stainless sheet steel panels. To provide good aesthetics, to optimize ergonometrics for the operator and to reduce the chance of damage to a minimum.

• Water pump

The rotary vane pump, is installed on the water supply tubing and is set up to operate anytime the coffee groups are activated, and through an autoll system whenever the water boiler needs to be replenished.

3. Installation

LA FIGURA AFFIANCO DESCRIVE COME

COLLEGARE OGNI FILO ALLA SPINA.

RISPETTARE ANCHE LE NORME FEDERALI,

STATALI O LOCALI VIGENTI.

MODELLO/SERIE GRUPPO V/Hz

POTENZA

NOMINALE

(W)

INPUT

NOMINALE

(A)

POTENZA

CALDAIA

CAFFE’

POTENZA

CALDAIA

VAPORE

POTENZA

TOTALE

DIMENSIONE CAVO

ALIMENTAZIONE

ELETTRICA (mm²)

STRADA MP

2GR

C220-240V/60H

AC208-240/60Hz

AC380/50Hz

4600

20-22

1600 3000 4600

PER DETTAGLI

3GR 6400

2400 4000 6400

VEDERE I

COLLEGAMENTI

ELETTRICI

ATTENZIONE

AC220-240V/60Hz

AC208-240/60Hz AC380/50Hz

25-29

30,5

RATED

(W)

RATED

(A)

COFFEE

WATTAGE

STEAM

WATTAGE

POWER CORD

1 X BLU (NEUTRO)

1 X MARRONE (FASE)

1 X GIALLO & VERDE (TERRA)

CAVO ALIMENTAZIONE ELETTRICA:

5 X FILI 380V

1 X MARRONE (FASE)

1 X GRIGIO (FASE)

1 X NERO (FASE)

1 X BLU (NEUTRO)

1 X GIALLO & VERDE (TERRA)

3 X FILI 220V

HERE THE POSITION OF THE POWER CORD AND

13 in.

POSITION OF THE HIGH LEGS MACHINE

MODEL/SERIES GROUP V/Hz

STRADA MP

1 X BLUE (NEUTRAL)

3 X WIRES 220V

1 X BROWN (PHASE)

1 X YELLOW & GREEN (GROUND)

HERE THE POSITION OF THE DRAIN TUBE

POWER

C220-240V/60H

2GR

AC208-240/60Hz AC380/50Hz

AC220-240V/60Hz

3GR 6400

AC208-240/60Hz AC380/50Hz

POWER CORD:

5 X WIRES

1 X BROWN (PHASE)

380V

1 X GRAY (PHASE)

1 X BLACK (PHASE)

210 mm

4 in.

55 mm 2,1 in.

5,1 in.

130 mm

11 in.

280 mm

16,7 in.

425 mm

140 mm

5,5 in.

INPUT

BOILER

20-22

4600

23 12

25-29

30,5

1 X BLUE (NEUTRAL)

1 X YELLOW & GREEN (GROUND)

FROM ∅80 TO ∅100 mm

FROM ∅3 in. TO ∅4 in.

WATER INLET HOSES

1600 3000 4600

2400 4000

775 mm (2 groups)

30,5 in. (2 groups)

975 mm (3 groups)

38 in. (3 groups)

BOILER

TOTAL

WATTAGE

6400

WARNING

THE DETAILS ON THE LEFT DESCRIBE

HOW TO CONNECT EACH WIRE TO THE PLUG.

RESPECT ALSO THE LOCAL SAFETY

HERE THE POSITION WHERE WE

SUGGEST TO MAKE THE HOLE

ON THE TABLE

SIZE (mm²)

SEE ELECTRICAL

CONNECTIONS

FOR DETAILS

REGULATIONS.

94 mm

328 mm

12,5 mm

0,5 in.

3,7 in.

WARNING

The machine is intended to be

permanently connected to xed

wiring, and it is mandatory that

a residual current device (RCD)

with a rated residual operating

current not exceeding 30mA is

installed.

Fig. 2 - Installation guide

WARNING

The Coffee Boiler and Steam

Boiler contain water at elevated

temperature. Water temperature

over 125°F / 52°C can cause

severe burns instantly or death

from scalding (Coffee Boiler

207°F/97°C - Steam Boiler

256°F / 124°C)

WARNING

At each installation, the machine

should be equipped with a new

set of tubes for plumbing and

related gaskets.

WARNING

Water pressure supply must be

between 2 and 6 bar if sufcient

pressure is not available we

suggest that an additional water

supply system is used.

WARNING

Hazardous voltage disconnect

from power supply before

servicing.

WARNING

Before making any electrical connections make sure that the two strain relief connectors are

rmly secured to the body of the machine in order to prevent inadvertent stress on the power

cables.

WARNING

The motor pump must be

situated close to the machine

in an accessible place for

maintenance but not for

accidental interference and

where there is an optimal air

circulation.

WARNING

Replace fuses with the same

size, type and rating F1 = 2A,

250V

WARNING

- U.S.A. and CANDA only - Do not connect to a circuit operating

at more than 150V to ground on

each leg.

WARNING

The manufacturer declines

any responsibility for any

event leading to liability suits

whenever grounding has not

been completed according to

current local, national, and

international regulations and

electrical codes, or other

electrical parts have been

connected improperly.

WARNING

This machine should not be

installed in kitchens.

WARNING

This appliance is not intended

for use by persons (including

children) with reduced physical,

sensory or mental capabilities,

or with lack of experience and

knowledge, unless they have

been given supervision or

instruction concerning the use

of the appliance by a person

responsible for their safety.

WARNING

This machine is not suitable for

outdoor use. Jets of water should

not be used to clean the machine,

nor should it be placed where

water jets are used.

WARNING

In order to prevent cracks

or leakage: do not store or

install the Coffee machine

in places where in boiler or

hydraulicsystem to freeze.

Note:

• The drinking water mains valve and the circuit breakers for the electrical system need to be located in the most convenient position for the operator to access them easily and quickly.

• The machine should be placed on a at counter and must be placed in settings with the following temperatures:

Minimum room temperature: 5°C/41°F Maximum room temperature:

32°C/89°F

• If the machine has been temporarily housed in settings with a room temperature of less 0°C/32°F, the machine must be placed in a warmer environment in order to gradually defrost the hydraulic system prior to use.

• Water pressure supply must be between 2 and 6 bar.

• This machine complies with the

standard 61000-3-11, the impedance

at the supply interface must be Zmax=

0.11 Ω.

1) Installation guide

TEE FITTINGS

ROTARY PUMP

PRESSURE REDUCER

PRESSURE ≤ 9 BAR

WASTE/DRAIN

MAIN SWITCH

AND ELECTRICAL SUPPLY CONNECTION

POWER SUPPLY

CORD

COFFEE BOILER

STEAM BOILER

BRAIDED HOSE

For best results, STRADA needs a minimum ow of water in input of 100 l/h and a pressure of 2.5 bar.

Installations that do not meet these requirements will cause a shorter life of the pump and may cause a high noise level during coffee brewing.

If the pressure and ow are not adequate, air bubbles may develop within the gears. This is called cavitation. Cavitation can impair the performance of the espresso machine.

If the incoming water of the espresso machine falls outside the recommended parameters, it is necessary to carry out one of the following installations:

Pressure lower than 9 bar Flow rate lower than 100 l/h

Installation with the rotary pump immediately after the water treatment system, upstream of the tee.

POWER SUPPLY

Fig. 3 - Installation guide - type 1

CORD

MAIN SWITCH AND ELECTRICAL SUPPLY CONNECTION

WASTE/DRAIN

ROTARY PUMP

STEAM BOILER

COFFEE BOILER

TEE FITTINGS

BRAIDED HOSE

WATER CHECK POINT:

FLOW RATE < 100 l/h PRESSURE ≤ 9 BAR

WATER TREATMENT

RECOMMENDED VALUES

www.lamarzocco.com/water_calculator

MAIN WATER

SUPPLY VALVE

Pressure higher than 9 bar Flow rate lower than 100 l/h

Installation of the pressure reducer immediately after the water treatment system, upstream of the rotary pump.

Installation of the rotary pump (set to 9 bar) immediately after the pressure reducer, upstream of the tee.

POWER SUPPLY

CORD

MAIN SWITCH

AND ELECTRICAL SUPPLY CONNECTION

WASTE/DRAIN

ROTARY PUMP

Fig. 4 - Installation guide - type 2

STEAM BOILER

COFFEE BOILER

TEE FITTINGS

BRAIDED HOSE

WATER CHECK POINT:

FLOW RATE < 100 l/h PRESSURE > 9 BAR

PRESSURE REDUCER

PRESSURE ≤ 9 BAR

WATER TREATMENT

RECOMMENDED VALUES

www.lamarzocco.com/water_calculator

MAIN WATER

SUPPLY VALVE

2) Accessories

Check the package to make sure that the following accessories are included:

• a number of 1-dose and 2-dose portalters orresponding to the number of groups;

• replacement 1-dose and 2-dose lters (one of each);

• 1 tamper;

• 1 blind lter;

• cleaning detergent, for the groups;

• 3 stainless steel braided hoses for water connections;

• 1,5 mt of reinforced plastic tubing for

drainage;

• 1 hose clamp;

• 1 TEE Fitting.

In order to proceed with installation, it is necessary that the following are available:

• Pipes carrying drinking water with a 3/8”G (BSP) end connection; (3/8” Compression for USA and Canada)

• Electrical Supply according to the specication of the espresso machine purchased:

• Single/Three phase 220VAC - 50/60 Hz electrical connection with ground, protected socket and approved interlock switch

• Single phase 200VAC - 50/60 Hz electrical connection with ground, protected socket and approved interlock switch

• Three-phase, 380VAC - 50 Hz electrical connection with neutral + ground, near the bench on which the

machine is installed and terminating

in a suitable protected vepole socket equipped with an approved interlock switch

• Waste water drain system.

3) Water test kit

In order to enable you to check if your water supply is within the suggested ranges, La Marzocco machines will be equipped with two units of a quick water test kit (see image below) including 6 test-strips and instruction

cards.

The parameters that you can measure are Total Hardness, Total Iron, Free Chlorine,

Total Chlorine, pH & Total Alkalinity, Chlorides. Ideally, you should perform a test on the water BEFORE the water treatment system and again AFTER the water system in order to verify if this is actually matching our suggested ranges. Once the test has been performed, learn which treatment system is most appropriate for your particular water supply by lling out the online water calculator on our website: LA MARZOCCO WATER CALCULATOR (http:// www.lamarzocco.com/water_calculator/).

4) Water supply connection

In order to connect the machine up to the water mains proceed according to the indications given in the chapter about Installation and in compliance with any local/national safety standards of the location in which the machine is being

installed.

To guarantee a correct and safe functioning of the machine and to maintain an adequate performance level and a high quality of the beverages being brewed it is important that the incoming water be of a hardness greater than 7°f (70ppm, 4°d) and less than 10°f (100ppm, 6°d), pH should be between 6.5 and 8.5 and the quantity of chlorides be less than 50mg/l . Respecting these values allows the machine to operate at maximum

efciency. If these parameters are not present, a specic ltration device should be installed, while always adhering to the local national standards in place regarding potable water. Then connect the inlet of the water lter/ softener (if present) to the drinking water supply using one of the supplied stainless steel braided hoses. Before connecting the lter to the water pump, ush the water supply line and the ltration system in order to eliminate any residual particles which could otherwise get stuck in taps or valves thus preventing them from working properly. Connect the water supply connection of the espresso machine to the water pump outlet using one of the supplied stainless steel braided hoses. Then connect the water pump inlet to the water lter/softener outlet (if present).

5) Electrical connections a) Power supply cord

• This is the main power supply cable that provides power to the entire espresso machine. There are different types of cable based upon the electrical requirements of the espresso machine purchased:

• 200/220VAC 1 Phase 3-core cable with 4/6/10mm2 cross section or AWG 12/10/8 for 2,3 4 group versions, secured to espresso machine via a strain relief connector

• 220VAC 3 Phase 4-core cable with 4 mm2 cross section for 2 , 3 and 4 group versions, secured to espresso machine via a strain relief connector

• 380 VAC 3 Phase 5-core cable with

2.5mm2 cross section for 2, 3 and 4 group versions, secured to espresso machine via a strain relief connector.

c) Quick connection between the water pump and the espresso coffee machine

The electrical connection must be made through the use of the connectors, as shown in the following gures:

- View of the connectors;

Machine connector Pump connector

- Cable connection;

Note: The water pump is a differential pressure volumetric pump and has been designed to be used exclusively with cold water. Make sure that water is always present while the pump is operating, otherwise air can be introduced into the brew boiler causing an undesireable condition and the pump can be damaged.

b) Water pump motor power cord

This is the power supply for the water pump motor. The internal electronics will switch the pump motor on when needed.

• 3-core cable with 1.5 mm2 cross section or 3-core AWG 16 (for UL version) secured to espresso machine via a strain relief connector.

- Cable tightening;

6) Waste water drain connection

The espresso machine drain is to be connected by means of the included reinforced plastic tubing. Connect one end of the reinforced plastic tubing to the drain hose connection on the left side of the espresso machine, secure with included hose clamp. Connect the other end to a suitable waste water collection system. In case such a system is not available, drained liquids may be collected in a suitable bucket and any necessary drain pipe extensions shall be made using steel-lined PVC tubing and suitable hose

clamps.

Water specications table

Min. Max.

T.D.S. ppm 90 150

Total Hardness ppm 70 100

Total Iron (Fe

Free Chlorine (Cl

Total Chlorine (Cl

pH value 6,5 8,5

Alkalinity ppm 40 80

Chloride (Cl

N.B.: Test water quality (the warranty is void if water parameters are not within the range specied in the section “installation”)

/Fe+3) ppm 0 0,02

) ppm 0 0,05

) ppm 0 0,1

–

) ppm not more 50

4. Machine Operation and Coffee Preparation

CAUTION

Never remove the lter holder when water is being delivered.

This operation can be extremely

dangerous since the high

pressure built-up inside the

blind lter would spray out hot

and slightly caustic water, which

may cause severe burns. The

Coffee Boiler contains water at

elevated temperature. Water

temperature over 125°F / 52°C

can cause severe burns instantly

or death from scalding.

WARNING

The machine must not be dipped

in, nor splashed with, water in order to clean it. For cleaning

operations, please follow the

instructions listed below very

carefully.

This machine is designed only

for preparing coffee and hot

IMPORTANT

To improve the avor of the espresso, the temperature of the water in the coffee boiler and therefore of the groups may eventually be raised or lowered via the digital display (please consult the Software Programming Manual for detailed instructions).

1) Starting the Espresso Machine

Filling the Boilers with Water: Once the installation procedures have been completed, it is necessary to ll the boiler tanks with water. Complete the following procedure to properly ll the boiler tanks:

• Coffee Boiler

The water ows inside the coffee boilers directly, as soon as the water system and water lter/softener valves are opened. Since the inow of water will compress the air in the boiler, it will be necessary to remove or “bleed” the air from the coffee boilers. All air must be removed in order to completely “saturate” the coffee boiler/ group assemblies. To remove the air from the boiler, or “bleed

WARNING

drinks.

the groups”, it will be necessary to remove the plastic cap and the handle from the top of the group.

Loosen the bleed screws one at a time to allow air to escape until water ows from below the screw head. Tighten the screw to stop the water from owing. Over tightening can cause damage to the sealing washer and the group cover. Repeat this procedure on all groups.

• Steam Boiler

Turn the main switch to position “1” or ON, then push the encoder knob for three seconds and the automatic steam boiler level function will be switched on, activating the auto-ll solenoid valve and the motor pump. This will ll the steam boiler to a predetermined level and will shut off when full.

+ 40 hidden pages

La Marzocco Strada MP User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual