LAVAZZA LB 2801, LB 2800, LB 2811, LB 2810 Maintenance Manual

LB 2800-2801-2810-2811

MAINTENANCE MANUAL FOR

TECHNICAL ASSISTANCE

MANUAL CODE 10066574 / REL. 2.00 / FEBRUARY 2012

LB 2800

Machine code

10080022

LB 2801

Machine code

110080118

LB 2810

Machine code

10080005

LB 2811

Machine code

10080023

Manual code

10066574

Rel. 2.00

Edition 02/2012

www.absoluteaftersales.it

© Copyright LAVAZZA S.p.A.

Tel. [phone]
Fax [phone]

[e-mail]

Certificated n° IT09/0445

Manual code 10066574 / Rel. 2.00 / February 2012

Maintenance manual for technical assistance

T

ABLE OF CONTENTS

1. GENERAL INFORMATIONI . . . . . . . . . . . . . . . . . 1

1.1. Structure of the manual . . . . . . . . . . . . . . . . . . 1

1.1.1. Scope and content . . . . . . . . . . . . . . . . . . . 1

1

.1.2. Messages used . . . . . . . . . . . . . . . . . . . . . . 1

1.1.3. Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1.4. Preservation . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2. Designated personnel . . . . . . . . . . . . . . . . . . . 1

1.3. Machine composition . . . . . . . . . . . . . . . . . . . . 2

1.3.1 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.3.2. Identification data . . . . . . . . . . . . . . . . . . . . . 3

1.3.3. Overall dimensions and weight . . . . . . . . . . 2

1.3.4. Technical specifications . . . . . . . . . . . . . . . 2

1.3.5. External components . . . . . . . . . . . . . . . . . 2

1.3.6. Internal components . . . . . . . . . . . . . . . . . . 3

1.3.6.1. Boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3.6.2. Brewing unit . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3.6.3. Automatic water entry system (A.E.A) . . . . 4

1.3.6.4. Flowmeter. . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3.6.5. Boiler temperature and pressure control . . 5

1.3.6.6. Pumping system. . . . . . . . . . . . . . . . . . . . . 5

1.3.6.7. Valve group . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3.6.8. Electronic control unit . . . . . . . . . . . . . . . . 6

1.3.6.9. Softener . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3.7. List of the accessories

supplied with the machine . . . . . . . . . . . . . . 6

2. GENERAL SAFETY STANDARD . . . . . . . . . . . . . 6

2.1. Stop functions . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2. Safety devices . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3. Residual risks . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3. HANDLING AND STORAGE . . . . . . . . . . . . . . . . 8

3.1. Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2. Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4. DISMANTLING AND DISPOSAL . . . . . . . . . . . . . 8

4.1. Instruction for end of life treatment . . . . . . . . . . 8

5. INSTALLATION AND START UP . . . . . . . . . . . . . 9

5

.1. Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.2. Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.3. Water connection . . . . . . . . . . . . . . . . . . . . . . 10

5.4. Electric connection . . . . . . . . . . . . . . . . . . . . . 10

5.5. Start procedures . . . . . . . . . . . . . . . . . . . . . . . 11

6. RECOMMENDED TOOLS . . . . . . . . . . . . . . . . . 11

7. CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . 12

7.1. Machine alarms . . . . . . . . . . . . . . . . . . . . . . . 12

7.2. Programming . . . . . . . . . . . . . . . . . . . . . . . . . 12

7.2.1. Programming of coffee doses . . . . . . . . . . 12

7.2.2. Programming of cappuccino doses

(only LB 2800-LB 2810 models) . . . . . . . . 12

7.2.3 Hot water dispensing . . . . . . . . . . . . . . . . 13

7.2.4. Programming of coffee-cappuccino

sequence (only LB 2800-LB 2810 models) . 13

7.2.5. Loading of default data . . . . . . . . . . . . . . . 14

7.2.6. Boiler temperature programming . . . . . . . . 14

7.2.7. Dispensing coffee . . . . . . . . . . . . . . . . . . . 14

7.2.8. Preparation of hot drinks . . . . . . . . . . . . . . 15

7.2.9. Cappuccinatore (only LB 2800-LB 2810

models) . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

7.2.10.Preparing coffee with milk . . . . . . . . . . . . . 16

8. DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

8.1. Electrical diagram . . . . . . . . . . . . . . . . . . . . . . 17

8.2. Hydraulic diagram . . . . . . . . . . . . . . . . . . . . . 18

9. INSPECTIONS AND MAINTENANCE . . . . . . . . . 19

9.1. Periodic inspections . . . . . . . . . . . . . . . . . . . . 19

9.2. Routine and supplementary maintenance . . . 19

9.2.1. Brewing unit . . . . . . . . . . . . . . . . . . . . . . . 19

9.2.2. Discharge-one-way valve . . . . . . . . . . . . . 19

9.2.3. Replacing the perforator . . . . . . . . . . . . . . 20

9.3. Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

IV

Manual code 10066574 / Rel. 2.00 / February 2012

Maintenance manual for technical assistance

9.3.1. Cappuccinatore (only LB 2800 - LB 2810

m

odels) . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

9.3.2. Capsule-holder . . . . . . . . . . . . . . . . . . . . . 21

9.3.3. Steam pipe (only LB 2800 - LB 2810

models) . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

9.3.4. Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

9

.3.5. Steam pipe end (only LB 2800 – LB 2810

models) . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

9.3.6. Brewing unit . . . . . . . . . . . . . . . . . . . . . . . 21

10. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . 22

10.1. Signalling and solutions to the most common

problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Manual code 10066574 / Rel. 2.00 / February 2012

1

Maintenance manual for technical assistance

1

. GENERAL INFORMATION

1.1. Structure of the manual

Before any operation is carried out on the machine,the
maintenance technician must carefully read the instruc­t

ions contained in this publication. The undertaking of
any operation on the machine, without having read and
understood the contents of this manual is prohibited. If
there is any doubt about the correct interpretation of the
i

nstructions, contact Lavazza in order to obtain the ne­cessary clarification.

1.1.1. Scope and content

This manual contains all the information necessary for
the maintenance of the machine, safety instructions,
troubleshooting and diagrams.
All reproduction rights for the present manual are reser­ved to Luigi Lavazza S.p.A. The reproduction, even par­tial, of text or images is forbidden. Information contained
here cannot be transmitted to any third parties without
the prior written permission of Lavazza, which has the
exclusive rights to the property.
Lavazza reserves the right to modify features of equip­ments presented in this publication without prior notice;
it also declines any responsibilities for possible inaccu­rancies due to misprint.
It is recommended that the Internet site of the Lavazza
Technical Service be checked (at the following address
http://ts.inlavazza.it) to ensure that your manual is the
most recent version available and otherwise to download
an updated copy.

1.1.2. Messages used

Attention

ATTENTION messages indicate a danger, possibly
lethal, for the technician. The operations described
after this message must be carried out carefully and
safely using the personal protective equipment.

Warning

WARNING messages are displayed before procedu­res that, if not observed, could cause damage to the
machine.

Environment

ENVIRONMENT messages are displayed before pro­cedures that, if not observed, could cause damage
to the environment.

Note

NOTE messages show further information useful for
the maintenance technician.

1.1.3. Users

This manual is designed for technicians qualified to
maintain the machine. Lavazza is not responsible for
damage derived from the failure to follow these rules.

1.1.4. Preservation

In order to be able to guarantee the integrity and utility of
t

his manual the following guidelines should be observed:

- employ this manual in such a way that it remains un­damaged and whole;

- do not for any reason, remove, tear, or write over any
part of the manual;

- keep the manual in an area protected from humidity and
heat, in such a way that the quality and legibility of the
publication are not compromised;

- keep the manual close at hand for maintenance staff.

Warning

If this manual is damaged or lost, it is possible to
download another copy from the Lavazza Technical
Service site at the following address: http://ts.inla­vazza.it.

1.2. Designated personnel

The machine may be operated only by a qualified te­chnician who has read this manual and moreover who:

- has specific experience in the maintenance of profes­sional coffee machines;

- is able to carry out repairs in case of serious malfun­ction of the machine / machines shown in this manual;

- is able to understand the technical contents of the ma­nual and to correctly interpret drawings and diagrams
and has knowledge of the safety information described
below;

- has knowledge of the appropriate hygiene, workplace
safety, technology and security measures;

- knows how to act in an emergency, where to find the
personal protective equipment and knows how to use
it.

1

.3. Machine composition

If not expressly indicated in the text, the position num­bers of the machine components refer to figures in the
chapters 1.3.5. External components and 1.3.6 Internal
components.

1.3.1. Models

LB 2800 - LB 2810

LB 2801 - LB 2811

1.3.2. Identification data

In the plate the following data of the machine are indi­cated:

- manufacturer;

- machine model;

- serial number;

-

Lavazza’s product code;

- date of manufacture;

- power supply voltage (V) and frequency (Hz);

- absorbed power (W);

- water mains pressure (MPa).

1.3.3. Overall dimensions and weight

Depth: 435 mm
Width: 322 mm
Height: 470 mm
Weight: 31 kg

1.3.4. Technical specifications

Power supply frequency: 50/60
Boiler capacity (litres): 2
Boiler pressure (bar): 1,4 max
Safety valve calibration (bar): 2
Supply water pressure (bar): 0 - 5 max
Coffee brewing pressure (bar): 8 - 9 max

LB 2800 - LB 2810
Power supply voltage (V): 230
Power consumption (W): 1700

LB 2801 - LB 2811
Power supply voltage (V): 120
Power consumption (W): 1350

1.3.5. External components

1) Hot water dispensing key

2) Pilot light for boiler heater on

3) Boiler pressure gauge

4) Hot water pipe

5) On/off switch

6) Adjustable foot

7) Coffee spout

8) Keyboard

9) Cappuccinatore

10) Steam pipe

11) Rubber piece

12) Steam knob

55
22

2

2

55
22

22

2

Manual code 10066574 / Rel. 2.00 / February 2012

Maintenance manual for technical assistance

LB 2800 - LB 2810

LB 2801 - LB 2811

1.3.6. Internal components

13) Boiler

14) Control unit

15) Flowmeter

16) Boiler pressure gauge

17) Brewing unit

18) Drain tray

19) Internal power pump

20) Cold water mixer valve

1.3.6.1. Boiler

The boiler (A) is constructed of steel. A heat exchanger
connected to the brewing unit is attached to the boiler.
Water for coffee brewing is taken directly from the heat
exchanger. During brewing, cold water is sent inside of
the exchanger by the pump.
Inside the heat exchanger, cold water and the pre-exi­sting hot water are mixed, thus obtaining optimal water
temperature for coffee infusion. The water is heated into
the boiler by an electrical heating element immersed in
the water (B).

55
22

2

2

55
22

2

2

1

2

4

3

6

8

5

7

9

1

2

4

3

6

8

5

7

11

10

12

16

15

13

14

20

19

18

17

A

B

Manual code 10066574 / Rel. 2.00 / February 2012

3

Maintenance manual for technical assistance

1.3.6.2. Brewing unit

The brewing unit and the heat exchanger are funda­mental components to obtain espresso coffee.

Specifically the function of the unit is coffee dispensing.
In this system the brewing unit (1) is heated by a ther­m

osiphon circuit (2) connected to the heat exchanger

(3). The same water is used for coffee brewing:

- activation of the solenoid valve and the pump allows
cold water to enter the exchanger (3) via the injector
(4);

- heated water is carried to the unit (1) for brewing from
the exchanger (3);

- the pump allows water pressure to be increased up to
8-9 bar for brewing.

In order to increase or decrease the temperature of the
coffee in the cup, water temperature in the boiler must
be changed (see section 6.3.11).

N

ote

I

f the water temperature in the boiler is decreased
but the coffee is still too hot, the reducer (5) supplied
with the machine must be put on the pipe.

1

.3.6.3. Automatic water entry system (A.E.A)

The automatic water entry system checks the water level
in the boiler.

The system is composed of:

- a probe inserted in the boiler (A) which is composed

of a stainless steel rod;

- an electronic control unit (B);

- a pump that, with the AEA solenoid valve, allows the

water flow into the boiler;

- a AEA solenoid valve.

The electronic control unit controls the level of the water
in the boiler.
When this level drops the contact with the probe is in­terrupted; the control unit sends an impulse to the inlet
solenoid valve and the power pump, which restore the
normal level of water in the boiler.

To avoid possible flooding due to machine malfunctions
or leaks in the water circuit, the electronic control unit is
equipped with a timing device that cuts off the automa­tic filling after a maximum period of 120 seconds.

3

2

1

Water inlet

Coffee

dispensing

3

4

5

A

B

At resting

position

During

dispensing

4

Manual code 10066574 / Rel. 2.00 / February 2012

Maintenance manual for technical assistance

1.3.6.4. Flowmeter

The flowmeter installed on the EVD electronic machines,
measures the quantity of water sent to the brewing unit
for espresso brewing.
The flowmeter generates an electric impulse which is
sent to the electronic control unit.
This impulse is read by the control unit and memorized
d

uring the programming of the dose.
The flashing of the LED (1) indicates that the electrical
impulse has been sent from the flowmeter to the control
unit.

1.3.6.5. Boiler temperature and pressure control

The flowmeter installed on the EVD electronic machines,
measures the quantity of water sent to the brewing unit
for espresso brewing.
The flowmeter generates an electric impulse which is
sent to the electronic control unit.
This impulse is read by the control unit and memorized
during the programming of the dose.
The flashing of the LED (1) indicates that the electrical
impulse has been sent from the flowmeter to the control
unit.

1.3.6.6. Pumping system

It is the component that feeds the machine, raising the
water pressure to 8-9 bars for coffee brewing and auto­matic filling of the boiler.
To set the pressure rating, proceed as follows:

- select a coffee dispensing key;

- connect a pressure gauge, with bottom scale greater
than 9 bars, to the specific fitting on the water circuit
(see the hydraulic diagram);

-

set the pressure by using the pressure adjusting screw
located in the pump (A) in such a way as to reach a
value between 8 and 9 bars: turning clockwise the
pressure increases, turning anticlockwise the pressure
d

ecreases;

- check the pressure on the pressure gauge.

1.3.6.7. Valve group

The valves serve to ensure safety and proper machine
operation.

Safety valve

The safety valve serves to eliminate the air
in the boiler during the heating of the ma­chine.

Pressure relief valve

The pressure relief valve ensures that the
pressure in the boiler doesn’t exceed 2.2
bars. In case of a malfunction, the capacity
of the valve is likely to eliminate all the ex­cess pressure in the boiler.

Expansion – one-way valve

This device consists of an expansion valve and a one­way valve.

Expansion valve: the cold water sent from the pump to
the heat exchangers is heated. This heating causes an
increase in the volume of the water. To limit pressure in­creases in the hydraulic circuit, the valve limits the ma­ximum internal pressure in the circuit to 12 bars.
one-way valve: its function is to prevent the backflow of
the water from the exchangers to the hydraulic circuit.

1

X

A

One-way

valve

Expansion

valve

Manual code 10066574 / Rel. 2.00 / February 2012

5

Maintenance manual for technical assistance

1.3.6.8. Electronic control unit

This unit electronically controls
the coffee dose via the water
flow in the flowmeter and the boi­ler water filling. It also manages
the operation of the automatic
cappuccinatore. This control unit
c

an be connected to counter sy­stems of the dispensing cycles
via a special interface device.

1.3.6.9. Softener

Tap water contains insoluble salts, which causes build­up of lime scale in the boiler and in other parts of the ma­chine. The softener eliminates or greatly reduces the
presence of these mineral salts.

Attention

The lime scale build-up in the water circuit and boi­ler prevents the heat exchange and affects the effi­cient working of the machine. If the boiler is
encrusted with lime scale this may stop the machine
for long periods and therefore void any guarantee.

1.3.7. List of the accessories supplied with the

machine

Booklet: instructions for using the machine.

Accessories:

A) Rifle-type brush
B) Brush with bristles
C Detergent for cappuccinatore
D) Puly caf
E) Silicone pipe
F) Cavoflex pipe
G) Flexible pipe
H) Reducer

2. GENERAL SAFETY STANDARD

Attention

Failure to comply with basic safety rules and pre­cautions could cause accidents during machine
operation and maintenance. During the repair of the
machine all the measures necessary to prevent ac­cident must be used.

The main safety precautions that should be used when
operating the machine are described below. Lavazza
does not foresee every possible situation that could be
potentially dangerous. Warnings in this manual are not
exhaustive. If tools, procedures, working methods or te­chniques not expressly recommended are used, make
sure that there is no risk of personal injury or injury for
other people.
Adjustments, specifications and illustrations in this ma­nual are based on information available at the moment
of the editing and therefore can change anytime. These
modifications affect maintenance operations to be car­ried out. Ensure that the updated version of the present
manual is being used.

Power connection must be made in compliance with the
CEI EN 60335-1 and local safety standards in force.

The electric socket connecting the machine must:

- conform with the type of plug installed on the machine,
if it is present;

- be sized in order to comply with the data provided on
the plate on the bottom of the appliance;

- be connected to ground system, efficient and in accor­dance with the law.

H

B

C

G

F

E

D

A

6

Manual code 10066574 / Rel. 2.00 / February 2012

Maintenance manual for technical assistance