LB 2800 - LB 2810 MAINTENANCE MANUAL FOR TECHNICAL ASSISTANCE M ANUAL CODE 10066574 / R EL . 0.
LB 2800 Machine code 10080022 LB 2810 Machine code 10080005 Manual code 10066574 Rel. 0.00 Edition 03/2009 © Copyright LAVAZZA S.p.A. Tel. 0039.011.2398429 Fax 0039.011.23980466 technicalservice@lavazza.
Maintenance manual for technical assistance - LB 2800 - LB 2810 Table of contents 1. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1. Designated personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2. Structure of the manual . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2.1. Scope and content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2.2. Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance manual for technical assistance - LB 2800 - LB 2810 3. 4. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.1. Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.2. Mounting-Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.3. Machine positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.4. Water connection . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance manual for technical assistance - LB 2800 - LB 2810 1. GENERAL INFORMATION The manufacturer is not responsible for damage derived from the failure to follow this rule. 1.1.
Maintenance manual for technical assistance - LB 2800 - LB 2810 1.2.5. Machine composition Note: if not expressly indicated in the text, the position numbers of the machine parts are referred to this figure. 1 2 2 25 3 4 5 6 7 9 8 1 Push button panel 2 Hot water dispensing push button 3 Boiler heating element indicator light working 4 Boiler pressure gauge 5 Hot water dispensing nozzle 6 Machine main switch 7 Adjustable foot 8 Coffee dispensing spout 9 Cappuccinatore 2 Manual code 10066574 / Rel.
Maintenance manual for technical assistance - LB 2800 - LB 2810 1.2.6. Internal components 2 8 3 4 1 5 6 7 1 Boiler 2 Electronic control unit 3 Volumetric dosing device 4 Boiler pressure gauge 5 Dispensing assembly 6 Drain tub 7 Internal motor pump 8 Cold water mixing tap Manual code 10066574 / Rel. 0.
Maintenance manual for technical assistance - LB 2800 - LB 2810 1.2.7. Main components - from the exchanger (3) the water is carried to the group duct (1) for delivery; 1.2.7.1. Boiler - the pump allows the increase of the pressure of the water flow up to 8-9 bar for delivery. The boiler is made of steel (A), to which is assembled the heat exchanger which in turn is connected to the dispensing group. Water for coffee delivery is taken directly from the heat exchanger.
Maintenance manual for technical assistance - LB 2800 - LB 2810 1.2.7.3. Automatic Water Entry (A.E.A) 1.2.7.4. Volumetric dosing device The Automatic Water Entry system is for checking the boiler level. The volumetric dosing device installed on the EVD electronic machines serves the purpose of measuring the quantity of water sent to the espresso delivery group. The dosing device generates an electrical impulse which is sent to the electronic control unit.
Maintenance manual for technical assistance - LB 2800 - LB 2810 1.2.7.6. Pumping system Expansion - non-return valve This is a component that feeds the machine, raising the water pressure to 8-9 bar for delivery of the coffee and automatic filling of the boiler. To adjust operating pressure proceed as follows: This is a valve consisting of an expansion valve and a non-return valve.
Maintenance manual for technical assistance - LB 2800 - LB 2810 2. GENERAL SAFETY RULES 1.2.8. Machine identification data In the plate the following identification data of the machine are indicated: - Manufacturer; machine name; serial number; power supply voltage (V) and frequency (Hz); power consumption (W); water mains pressure (MPa). Read the entire manual carefully and the following general safety rules. • Power connection should be made in compliance with local standards in force.
Maintenance manual for technical assistance - LB 2800 - LB 2810 2.1. Stop functions To stop the machine turn the main switch to “0” (OFF). 2.2. Safety devices Note The machines described in this publication, are designed in compliance with the specific European standards in force and therefore have measures of protection in all the potentially hazardous parts. A thermal protector avoids any overheating of the boilers. 2.3.
Maintenance manual for technical assistance - LB 2800 - LB 2810 Attention Any operation taken by the technician on the electronics of the machine when the machine is powered, automatically invalidates any guarantee. The technician should know that the machine is electrically connected and act accordingly. 3. INSTALLATION 3.1. Unpacking Open the packaging, taking care not to damage the machine. Remove the machine protections and the equipment contained in the package. Take the machine out.
Maintenance manual for technical assistance - LB 2800 - LB 2810 For the correct operation of the machine, the following advice is given: - environmental temperature: 10°C ÷ 25°C; - maximum humidity: 65%; - the area must be ready for the installation of the machine; - the place where the machine is installed should be flat, solid and still; the surface must not have an inclination of more than 2°; - the area should be sufficiently illuminated, ventilated, hygienic and equipped with a readily available power
Maintenance manual for technical assistance - LB 2800 - LB 2810 Note Warning For a correct ergonomic use of the machine, place it on a working surface not lower than one meter from the floor. Insert a tap (8) and a non-return valve (9)on the water mains supply so that it will be possible to cut off water flow to the machine. Warning For correct operation, the machine must rest on a perfectly horizontal surface. Any alignment adjustments of the machine must be done by adjusting the feet.
Maintenance manual for technical assistance - LB 2800 - LB 2810 Note All the machines are equipped with automatic water fi lling, and there is an automatic time control device which allows the boiler to be fi lled with water within a maximum period of time. This function keeps water from coming out of the valve of the boiler (flooding) and keeps the motor pump from overheating.
Maintenance manual for technical assistance - LB 2800 - LB 2810 4. HANDLING AND STORAGE 5. ACCESSORIES INCLUDED 4.1. Handling • Instruction booklet for machine use. During handling and transport, the machine must remain in a vertical position according to the directions on the packaging. Carry out lifting and positioning with care. Do not shake the machine.
Maintenance manual for technical assistance - LB 2800 - LB 2810 To make the machine unusable, remove the power cord. Deliver the unserviceable machine to an appropriate collection centre. Environment The battery resident in the electronic board should be removed from the equipment prior to disposal. Batteries should be disposed of in a safe manner. 7. PROGRAMMING 7.1. Programming coffee servings Place the programming lever (1), located under the boiler cover of the machine, in the ON position.
Maintenance manual for technical assistance - LB 2800 - LB 2810 7.2. Programming cappuccino doses Place the programming lever (1), located under the boiler cover of the machine, in the ON position. 1 ON Insert a pod in the filter holder and attach the filter holder to the group, tightening firmly. ON 2 25 Put the cup under the dispensing spout of the cappuccinatore. Press the PROG/STOP button (2) for about 5 seconds; ON all the dose button LEDs will come on.
Maintenance manual for technical assistance - LB 2800 - LB 2810 Note It is possible to adjust the temperature of the outlet water by means of the mixer tap located inside, at the rear of the machine. Turn clockwise to decrease the flfl ow of cold water, and anti-clockwise to increase it.
Maintenance manual for technical assistance - LB 2800 - LB 2810 7.6. Programming of boiler temperature To adjust the temperature of the boiler outlet water, proceed as follows: - turn the machine off by moving the switch to position 0; - press and hold the STOP/PROG key of the push button panel and start the machine. At start-up, the LEDs of the dose keys will flash to indicate the currently set temperature (temperature = sum of no.
Maintenance manual for technical assistance - LB 2800 - LB 2810 7.8. Preparation of hot beverages Dispensing hot water Place the jug under the hot water nozzle (B). Press the hot water delivery key (A). 2 25 A 2 ON 25 B ON 1 Upon reaching the established amount of water, dispensing stops immediately. 2 25 Red Ø 1,8 mm White Ø 1,9 mm Attention Do not touch the hot water nozzle, it gets very hot. 4 7.9. Cappuccinatore 2 Cappuccino preparation Put the suction tube (1) inside the milk.
Maintenance manual for technical assistance - LB 2800 - LB 2810 Table of temperatures with and without reductions (temperatures measured in a pre-heated cup) Milk temperature Without use of adaptor With white adaptor Ø 1,9 mm With red adaptor Ø 1,8 mm Temperature ambient 16 °C 55 - 60 °C 60 - 68 °C 68 - 75 °C Chilled milk 6 °C 48 - 56 °C 58 - 63 °C 63 - 70 °C Preparation of caffelatte It is possible to dispense caffelatte (milk without foam) by using the lever (5) of the cappuccinatore.
Maintenance manual for technical assistance - LB 2800 - LB 2810 8. PROBLEMS, CAUSES AND SOLUTIONS Below is a list of possible problems with machine function.
Maintenance manual for technical assistance - LB 2800 - LB 2810 PROBLEM SHUTDOWN OF THE ELECTRONIC SYSTEM THE PUMP LEAKS WATER CAUSE 1) The control unit fuse is burned out 2) Check the connection of the volumetric dosing device 1) Poor mechanical seal of the shaft or the O-ring seal 1) Check the status of the pump and take any corrective action which may be required 2) The inlet and outlet connections are loose 2) Tighten the connections 3) The hex nut of the pressure relief valve or the filter is
Maintenance manual for technical assistance - LB 2800 - LB 2810 PROBLEM CAUSE SOLUTION 1) Replace the electrical heating element 2) Check for any defective connections 3) Clean the machine 1) The electrical heating element is defective 2) The electrical connection is defective COFFEE IS TOO COLD 3) Lime scale on heat exchanger and/or heating element 4) The heating element protection thermostat has cut in 5) Lime scale has reduced the circulation of water 6) The delivery group is cold 4) Reset the hea
Maintenance manual for technical assistance - LB 2800 - LB 2810 CAUSE SOLUTION 1) The diameter of the injector is too large 1) Replace the injector with one of a smaller diameter 2) The boiler temperature is too high 2) Reduce the temperature in the boiler PROBLEM COFFEE DISPENSED TOO QUICKLY 1) The injector is clogged COFFEE DISPENSED TOO SLOWLY 2) The delivery group is clogged 3) The filter holder is dirty THE PRESSURE GAUGE INDICATES AN UNACCEPTABLE PRESSURE 1) The pressure gauge is defective
Maintenance manual for technical assistance - LB 2800 - LB 2810 PROBLEM SOLUTION CAUSE 1) The connection of the volumetric dosing device is defective 1) Check for proper connection of the volumetric dosing device connector 2) The connection of the electronic control unit is defective 2) Check for proper connection of the 8-pin connector of the electronic control unit 3) The connector of the volumetric dosing device has humidity on it INCORRECT COFFEE DELIVERY THE COFFEE DOSE IS NOT MET THE LED OF THE
Maintenance manual for technical assistance - LB 2800 - LB 2810 PROBLEM CAUSE 1) No water mains 2) Group solenoid valve is defective 3) The pump is jammed NO DISPENSING 4) The control unit fuse is burned out 5) The injector is clogged 6) The group solenoid valve is clogged or dirty 7) The volumetric dosing device is blocked WATER LEAKS FROM THE MACHINE SOLUTION 1) Check that there is water in the mains 2) Replace the group solenoid valve 3) Replace the pump 4) Replace the solenoid valve protection fus
Maintenance manual for technical assistance - LB 2800 - LB 2810 9. CHECKS AND MAINTENANCE To ensure perfect safety and efficiency of the appliance over time, it is necessary to carry out routine, preventive and special maintenance. In particular, it is advisable to carry out an overall check of the machine at least once a year. Weekly checks Machine Using the pressure gauge of the machine, check that the pressure in the boiler is about 0.8 - 1.2 bar.
Maintenance manual for technical assistance - LB 2800 - LB 2810 Yearly checks Check correct operation of the drain - non-return valve as follows: NON-RETURN DRAIN VALVE - activate the dispenser group for about 30 seconds; - attach a filter holder (1) with pressure gauge (available on request) to the group; 1 - activate the dispenser group and use the pressure gauge (2) to check the increase of pressure up to 8-9 bar - check the increase of pressure due to the effect of the expansion of the water that has
Maintenance manual for technical assistance - LB 2800 - LB 2810 10. CLEANING For perfect cleaning and efficiency of the appliance, several simple cleaning operations are necessary on the functional parts and accessories as well as the body panels. The indications given here are applicable for normal use of the coffee machine. If the machine is heavily used then cleaning should be performed more frequently. When cleaning, always use cloths that are completely clean and hygienic.
Maintenance manual for technical assistance - LB 2800 - LB 2810 Body Clean the panels of the body with a cloth dampened in lukewarm water. Do not use abrasive detergents which may scratch the surface of the body.
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