Wega Espresso Coffee Machine Technical data

ENGLISH
ESPRESSO COFFEE MACHINE
USE AND MAINTENANCE MANUAL
Instructions for technician
R
Via Santi, 9 - 40011 ANZOLA EMILIA (BO) - ITALY
Tel. +39.051.6500900 - Fax +39.051.733701
www.wega.it - commerciale@wega.it
Summary
1. TECHNICAL CHARACTERISTICS................................................................................................................ 6
LEVER MACHINE ......................................................................................................................................................................................6
DISTRIBUTION MACHINE..........................................................................................................................................................................6
TECHNICAL CHARACTERISTICS.................................................................................................................................................................7
INTERNAL COMPONENTS ........................................................................................................................................................................8
2. PREPARATION OF THE MACHINE ............................................................................................................ 9
2.1 UNPACKING ...............................................................................................................................................................9
2.2 EQUIPMENT PREPARATION ......................................................................................................................................9
Motor pump.............................................................................................................................................................................................9
Filter-holder.............................................................................................................................................................................................9
Spouts .....................................................................................................................................................................................................9
Softener...................................................................................................................................................................................................9
3. MACHINE INSTALLATION ....................................................................................................................... 10
3.1 POSITIONING ..........................................................................................................................................................10
3.2 HYDRAULIC CONNECTION FOR EPU - EVD - EVDT MACHINES ...............................................................................11
3.3 HYDRAULIC CONNECTION OF ALE MACHINES .........................................................................................................11
Warnings .............................................................................................................................................................................................. 11
LEVER MACHINE ................................................................................................................................................................................... 11
3.4 ELECTRICAL CONNECTION ......................................................................................................................................12
Machine with INTERNAL MOTOR PUMP ................................................................................................................................................ 12
Machine with EXTERNAL MOTOR PUMP ............................................................................................................................................... 12
3.5 GAS CONNECTION (if provided for) ........................................................................................................................12
3.6 STARTING THE MACHINE .......................................................................................................................................13
3.7 EXTERNAL MOTOR PUMP ADJUSTMENT ................................................................................................................13
4. Distribution machine BOILER and EXCHANGERS .................................................................................. 14
4.1 ELECTRIC HEATING .................................................................................................................................................14
4.2 GAS HEATING ..........................................................................................................................................................14
4.3 COMBINED GAS + ELECTRIC HEATING ...................................................................................................................14
5. COFFEE DELIVERY GROUPS ................................................................................................................. 14
5.1 LEVER GROUP ........................................................................................................................................................14
5.2 DELIVERY GROUP ...................................................................................................................................................15
5.3 DELIVERY DELIVERY ...............................................................................................................................................15
6. Automatic Water Entry.......................................................................................................................... 16
7. VOLUMETRIC DOSING ........................................................................................................................... 16
8. PRESSURE SWITCH ............................................................................................................................... 16
9. ANTI-FLOODING DEVICE ....................................................................................................................... 17
10. PUMPING SYSTEM .............................................................................................................................. 17
11. VALVE GROUP .................................................................................................................................... 17
11.1 NEGATIVE PRESSURE VALVE ................................................................................................................................17
11.2 SAFETY OR PRESSURE RELIEF VALVE ..................................................................................................................17
11.3 EXPANSION VALVE - NON-RETURN VALVE ...........................................................................................................17
12. GAS SYSTEM ....................................................................................................................................... 18
Gas adjustment .................................................................................................................................................................................... 18
SUMMARY follows
SUMMARY follows
13. SOFTENERS ........................................................................................................................................ 19
Softener regeneration .......................................................................................................................................................................... 19
14. ELECTRONIC CONTROL UNIT .............................................................................................................. 20
15.1 EVD PUSH BUTTON PANEL ..................................................................................................................................20
15. ELECTRONIC PUSH BUTTON PANELS ................................................................................................. 20
15.2 TH JUNIOR PUSH BUTTON PANEL ........................................................................................................................21
15.3 EVDT TIMER PUSH BUTTON PANEL .....................................................................................................................21
16. DISPENSING HOT WATER .................................................................................................................... 22
17. CAPPUCCINO MAKER .......................................................................................................................... 22
18. CUP HEATING DEVICE ......................................................................................................................... 23
19. CLEANING ........................................................................................................................................... 23
Filter and filter-holder ......................................................................................................................................................................... 23
Perforated disk and containment ring ................................................................................................................................................. 23
Steam nozzles ...................................................................................................................................................................................... 23
Delivery groups (except for ALE version) ............................................................................................................................................ 24
Body ..................................................................................................................................................................................................... 24
Grinder-doser ....................................................................................................................................................................................... 24
Cappuccinatore .................................................................................................................................................................................... 24
20. CHECKS AND MAINTENANCE .............................................................................................................. 25
Machine ................................................................................................................................................................................................ 25
Grinder-doser ....................................................................................................................................................................................... 25
Softener................................................................................................................................................................................................ 25
21. MALFUNCTIONS AND CORRESPONDING SOLUTIONS.......................................................................... 26
22. LIST OF HAZARDS ............................................................................................................................. 29
ENCLOSURES
HYDRAULIC DIAGRAMS ............................................................................................................................... IDR
ELECTRICAL DIAGRAMS ............................................................................................................................. ELE
INTERFACE SYSTEMS ................................................................................................................................. ITF
SERVING COUNTER ................................................................................................................................... CNS
MACHINE TECHNICAL DATA SHEETS .........................................................................................................SMC
SIBILLA machine .......................................................................................................................................................................... SMC-01
ESPRESSO COFFEE MACHINE
USE AND MAINTENANCE MANUAL
Instructions for technician
R
espresso coffee machine - instructions for technician
1. TECHNICAL CHARACTERISTICS
16
LEVER MACHINE
1
15
14
2
13
3
4
3
5
6
12
4
6
10
11
7
8
9
DISTRIBUTION MACHINE
15
17
2
18
1
18
14
15
13
3
4
3
5
6
7
12
4
6
English
6
11
10
9
8
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espresso coffee machine - instructions for technician
1 Boiler level-check window
2 Gauge
3 Steam gauge
4 Steam nozzle
5 2-cup filter holder
6 Adjustable foot
7 Hot water dispensing spout
8 Gas burner viewing window (if included)
9 1-cup filter holder
10 Gas safety (if included)
11 Gas ignition push button (if included)
12 Machine main switch
13 Cup rest grille
14 Machine on indicator light
15 Hot water knob
16 Lever groups
17 Manual delivery switches
18 Push button panels (for version EVD)
TECHNICAL CHARACTERISTICS
Version
JUNIOR
COMPATTA
1 Group
2 Groups
3 Groups
4 Groups
3,5
7
5
12
16
22
120 - 230
240
120 - 230
240
120 - 230
240 - 400
120 - 230
240 - 400
230
240 - 400
240 - 400
120 V
1500
2000
2000
2600
----
----
230 - 240 - 400 V
1500
2600
2600
3400
5000
6000
Boiler capacity (lt)
Power supply voltage (V)
Power (W)
Boiler pressure (bar)
0,8 - 1,4 MAX
Safety valve calibration (bar)
2
Supply water pressure (bar)
1,5 - 5 MAX
Coffee dispensing pressure (bar)
8-9
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espresso coffee machine - instructions for technician
2
INTERNAL COMPONENTS
3
1
4
14
5
13
6
7
12
8
9
10
11
8
English
1
Boiler
2
Delivery group
3
Internal motor pump (if included)
4
Boiler / motor pump pressure gauge
5
Boiler level-check window
6
Internal pump water attachment connection (if included)
7
Manual water pump
8
External pump water attachment connection
9
Drain tub
10
Volumetric dosing device (EVD)
11
Machine main switch
12
Gas system (if included)
13
Electrical heating element
14
Pressure switch
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espresso coffee machine - instructions for technician
2. PREPARATION OF THE MACHINE
2.1 UNPACKING
Open the packaging, taking care not to damage it. Remove the
machine protections and the equipment contained in the package.
Take the machine out.
If there is an external motor pump, the motor and the pump are
provided in separate packaging.
2.2 EQUIPMENT PREPARATION
Motor pump
In machines with an external motor, it is necessary to prepare
the pump and the motor.
Fit the 3/8 gas connection with filter (2) at the pump inlet
(arrow ) and the plain 3/8 connection (1) at the pump outlet
(arrow ).
Attention: install the connection with filter (2) at the pump
inlet.
Use the special washers (3) provided for the seal.
To correctly couple the pump and motor, use the appropriate
joint (4) and the spacer ring (5). Lock all of this with the two
clamps (6).
The pump-motor joint is also installed in machines with an internal
motor, with the exception of the Junior version and the Zecchin
type motors.
2
1
3
3
6
Filter-holder
In the housing of the filter holder (7), place the filter clamp spring
(8). Take the two-cup (9) or one-cup (10) filter and press it
firmly into the filter holder.
Softener
The resin softener is standard equipment on versions EVD-EVDT.
It is furnished on request in versions ALE-EPU.
For further information, refer to the “Softeners” chapter.
4
6
9
Spouts
Complete the filter holder by installing the two-cup (12) or onecup (13) spout.
In Italy provide for an extension cord (11).
Attention: install the spout on the relative filter holder: one-cup
spout on one-cup filter, etc.
5
10
8
7
11
13
12
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espresso coffee machine - instructions for technician
3. MACHINE INSTALLATION
12
15
11
13
DISTRIBUTION MACHINE
4
14
6
1
3
7
8
5
2
9
10
3.1 POSITIONING
Prepare an ample support base for the machine that is suitable to support its weight (1). It is important for all terminals of connections to
the water mains (2), to the electrical mains (3) and to the gas mains (in included), to be easily reachable and in any case in the immediate
vicinity of the machine.
Make sure that there is sufficient space for placing and correctly using the appliance. The grinding-dosing machine (4) must be placed in the
immediate vicinity of the appliance in order to allow for comfortable use of the machine.
It is advisable to equip the working base of the machine with a drawer (5) for used coffee grounds. Preferably this would also have a rubber
device to tap the filter holder against.
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.(6)
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espresso coffee machine - instructions for technician
3.2 HYDRAULIC CONNECTION FOR EPU - EVD - EVDT MACHINES
1)
2)
3)
4)
5)
6)
Remove any rubber plugs which may be inserted in the tap fixtures of the softener.
Connect the water mains (2) to the softener inlet (7) using the provided hose.
rinse resins from the softener and check that the water, which initially comes out yellowish, comes out clean
connect the softener outlet (8) to the external motor pump inlet (9);
connect the outlet of the motor pump (10) to the inlet of the machine (11);
connect the drain tub of the machine (12) to the sewer discharge (13)
using the special tube provided. Take care to avoid overly tight bends or
kinks, and make sure that there is sufficient inclination for water to flow
out of the drain.
LEVER MACHINE
3.3 HYDRAULIC CONNECTION OF ALE MACHINES
1)
2)
3)
Remove any rubber plugs which may be inserted in the tap fixtures of
the softener.
connect the water mains(2) to the inlet of the machine (11);
connect the drain tub of the machine (12) to the sewer discharge (13)
using the special tube provided. Take care to avoid overly tight bends or
kinks, and make sure that there is sufficient inclination for water to flow out
of the drain.
11
2
13
12
NOTE
All filling connections are 3/8 male gas type. The drain tub is connected
with a tube with an internal diameter of 16mm.
Warnings
1)
2)
3)
4)
5)
6)
7)
8)
9)
The water mains must provide cold water for human consumption (potable water) at a pressure between 1 and 5 bar inclusive If the pressure
is greater than 5 bar, connect a pressure reducer upstream from the pump.
insert a tap (2) on the water mains supply so that it will be possible to cut off water flow to the machine;
in order to prevent damage to the outer covering, to the valves or to the taps, install the softener where it will be protected from accidental blows;
to prevent the water from freezing, install the softener in rooms with an ambient temperature of more than 0°C;
if there is no softener, connect the water mains (2) directly to the inlet of the external motor pump(9);
if there is an internal motor pump, connect the outlet of the softener (8) (if there is one) or the water mains (2) directly to the machine inlet (11);
when connecting the tub of the machine to the sewer drain, avoid overly tight curves or kinks, and make sure that there is sufficient
inclination for water to flow out of the drain.
the drain must be connected to an inspectionable siphon that can be periodically cleaned in order to avoid the backflow of unpleasant odours;
to avoid oxidization and damage to the machine over time, do not use iron connections for the hydraulic connections, even if they are
galvanized.
WARNING
If hydraulic connection is not to the water mains but to an external tank, it is advisable to place a non-return valve between the
machine and the tank. The connection pipe between the machine and the external tank must not be greater than 150 cm.
NOTE
In all machines equipped with automatic water filling, there is an automatic time control device which allows the boiler to
be filled 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.
If the maximum time is not enough for the boiler to fill up completely (machines installed with 3 or 4 groups), turn the machine off and then back on, and repeat the operations shown above.
When the machine is started for the first time, it is advisable to fill the boiler manually using the knob (14)
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espresso coffee machine - instructions for technician
3.4 ELECTRICAL CONNECTION
A
On the electrical mains, it is advisable to install a main protection switch (A)
Machine with INTERNAL MOTOR PUMP
C
Connect the power cable as set forth in the chapter “Electrical diagrams” (the cable has a
cross-section and number of wires based on the power and voltage of the machine).
C
MP
B
M
GV
Machine with EXTERNAL MOTOR PUMP
1)
2)
Connect the cable to the motor pump (with lesser cross section) to the connector
as shown in the diagram shown alongside.
Connect the machine power cable (with greater cross section) as set forth in the
chapter “Electrical diagrams”.
B
M
GV
MP
B
M
GV
Motor pump power cable
Motor pump terminal
Blue
Brown
Yellow-green
WARNING
Always connect the motor pump cable before the machine power supply cable, in accordance with the diagram provided.
Failure to comply with the instructions given above may cause serious damage to the machine an/or to the motor pump
and will invalidate any guarantee. Carry out all electrical connections with the power supply disconnected.
3.5 GAS CONNECTION (if provided for)
Install a pressure reducer upstream from the gas system. When operating on
gas, the machine emits combustion fumes directly into the surroundings where
it is being used. Therefore, gas-powered machines must not be installed in
rooms with a volume of less than 12 m3, as described in standards UNI 7129
and UNI 7131.
On the pipe works upstream from the machine, a cut-off cock must be installed.
If flexible hoses rather than stiff pipes are used for connections, they must be
compliant with standard UNI 7140. These hoses must not be more than one
metre long, and they must be firmly attached to the hose connection with a safety
clamp (UNI 7141). They must not be placed near potential heat sources, they
must not reach a temperature greater than 50°C, they must not be subjected
to traction or twisting stress, and they must not have any kinks in them. It must
be possible to inspect them along their entire length, and they must not come
into contact with sharp objects or sharp corners.
The machine is assembled with the methane gas nozzle already installed.
The nozzle for city gas or gas cylinders is provided. Check that the nozzle
is appropriate to the type of gas being used before lighting the burner. The
incoming gas pipe must be equipped with a cut-off cock near the machine (see
the provided gas diagram).
At the cock outlet there will as necessary be installed a flexible hose or a stiff
copper pipe. Pipe connections to the machine must be made in accordance with
current standards in the country of installation. If connection is made with a
flexible hose, first of all insert the hose into the gas safety hose connection.
If instead you would like to make a stiff connection, you can use a soft copper
pipe Ø6x8, equipped with a 1/4 gas nipple at the gas safety (remove the hose
connection first).
NOTE
5
To adjust the gas system, refer to chapter12.
The water in the boiler can be heated in various ways: only electrically (machines without gas system), only with gas (version ALE), with a combined
system of gas and electricity (machines with gas system).
12
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6
1
3
1.
2.
3.
4.
5.
6.
2
Hose connection tube
Gas ignition push button
Gas self-regulator
Gas safety
Nozzle
Burner
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espresso coffee machine - instructions for technician
For the installation of the most suitable injector, see the table shown
alongside.
WARNING
Do not under any circumstances attempt to light the gas
without first installing the proper injector. As soon as connection is complete, check for any gas leaks by placing a
soapy solution on all connections.
Version
LPG
METHANE gas
(18 mbar)
(28/37 mbar)
1 Group
ø 1.00 (1.75 kW)
ø 0.60 (1.50 kW)
2 Groups
ø 1.10 (2.25 kW)
ø 0.65 (1.75 kW)
3 Groups
ø 1.35 (3.20 kW)
ø 0.80 (2.50 kW)
4 Groups
ø 1.45 (4.00 kW)
ø 0.85 (3.00 kW)
3.6 STARTING THE MACHINE
1
Before starting the machine, make sure that the level of water in the boiler is higher than the
minimum level on the level-check window (1). If there is no water (first installation or after boiler
maintenance), it is necessary to fill the boiler in advance, so as to prevent overheating of the
heating element. Proceed as follows:
Switch
2
Open the water tap of the water mains and of the softener.
Using manual fill (2) fill the boiler with water until the optimal level is restored.
Turn the switch to position “1” and wait for the machine to warm up completely.
0
1
Commutator
Open the water tap of the water mains and of the softener.
Turn the switch to position “1” (electrical power supplied to the pump for automatic boiler filling
and machine services) and wait for the boiler to be automatically filled with water.
Turn the switch to position “2” (full electrical power supplied, including the heating element in the
boiler) and wait for the machine to warm up completely.
Switch
0
1
2
Commutator
WARNING
•
•
•
during the machine’s warm-up phase (roughly 20 minutes), the negative pressure valve will release steam for a few seconds until the
valve itself closes
before using the machine, run deliveries dry with the filter holder attached for a few seconds to release any air which may be in the
circuit, so that the delivery groups are completely heated
before using the machine, dispense a few servings of coffee to test the grinding and to check the operating pressure of the machine
3
3.7 EXTERNAL MOTOR PUMP ADJUSTMENT
To adjust operating pressure proceed as follows:
• Use a coffee delivery switch.
• Adjust the pressure by turning the screw located on the pump (3) so as to obtain a pressure
of between 8 and 9 bar. Tightening the screw increases pressure, and loosening it reduces
pressure. Check the pressure by means of the gauge(4) located on the front part of the
machine;
• turn off the delivery switch;
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espresso coffee machine - instructions for technician
4. Distribution machine BOILER and EXCHANGERS
The boiler is constructed in copper sheet metal (1), to which the heat exchangers are assembled which in turn are connected to the delivery
group. Water for coffee delivery is taken directly from the heat exchanger. During delivery cold water is sent to the inside of the exchanger
by means of the motor pump. Inside the heat exchanger, cold water and the pre-existing hot water are mixed, thus obtaining optimal water
temperature for coffee infusion. The ALE does not have a heat exchanger, therefore water is taken directly from the boiler.
4.1 ELECTRIC HEATING
The water is heated in the boiler by means of an electrical heating element that is immerged in the
water(2).
1
4.2 GAS HEATING
Gas heating is obtained by supplying the flame of the burner located under the boiler.
4.3 COMBINED GAS + ELECTRIC HEATING
2
In machines equipped with both systems, it is possible to combine the heating types.
5. COFFEE DELIVERY GROUPS
1
The delivery group and the heat exchanger are the fundamental components in obtaining
espresso coffee. Specifically, the purpose of the group is to dispense the coffee.
5.1 LEVER GROUP
The lever group uses the boiler pressure and water. This system does not require heat
exchangers.
When the lever (1) is lowered, the spring (2) inside the group is compressed: the piston
(3) raises, allowing water to enter the pre-infusion jacket. When the lever is released,
the piston compresses the water to 8-10 bar, allowing delivery of espresso coffee. The
non-return ball valve (4) keeps water from flowing back into the boiler (5).
Phase 1
Lowering the lever.
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Phase 2
Pre-infusion for
3÷5 seconds.
5
4
2
3
Phase 3
Release of lever
and delivery
of the coffee.
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espresso coffee machine - instructions for technician
5.2 DELIVERY GROUP
In this system, the delivery group (1) is heated by a thermosiphon circuit (2) connected to the heat exchanger (3). The same water is used
for coffee delivery, thus ensuring the same temperature for all coffee servings.
• activation of the solenoid valve and of the pump allow cold water to enter the exchanger (3) through the injector (4).
• from the exchanger (3) the boiler water is carried to the group (4) for delivery;
• the pump allows the increase of the pressure of the water flow up to 8-9 bar for delivery.
The injector (4) and the flow reducer (5) are important components for the operation of the delivery group.
To increase the coffee extraction temperature, remove the flow reducer (5) or replace it with one of a greater diameter. To decrease the
temperature, replace it with one of a smaller diameter.
If necessary, the exchangers can be replaced by removing the flange and disconnecting the relative pipes of the hydraulic circuit. These operations should be carried out after the machine has been switched down and has cooled off. Always replace the seals.
5
2
delivery
coffee
1
3
4
3
at rest
in delivery
inlet
water
5.3 DELIVERY DELIVERY
This group functions with a double-outlet type exchanger.
The delivery is controlled with a manual valve system. The opening and
the closing of the valves for the passage of the water is operated by
a lever placed beside the group which, in turn, operates a cam inside
the group, opening and closing the water.
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espresso coffee machine - instructions for technician
6. Automatic Water Entry
The AEA system (Automatic Water Entry) is for checking the boiler level. It is composed of:
• sensor inserted in the boiler (1), composed of a stainless steel rod;
• control unit (2) standard on EVD machines, electronic level regulator on other
versions (3);
• hydraulic circuit with a solenoid valve controlled by the regulator.
1
The electronic control unit controls the level of water in the boiler. When the level of water
in the boiler drops, the contact with the probe is interrupted. The control unit sends and
impulse to the entry solenoid valve (1) and to the motor pump (2), which act to restore
the normal level of water in the boiler.
To avoid possible flooding due to machine malfunctions or leaks in the hydraulic circuit, the
electronic control unit includes a timing device that cuts off automatic filling after a certain
time (roughly 30 seconds). The LED (4) located on the front of the machine body comes
on to indicate activation of this system. During the installation of machines with three or
four groups the initial water filling time may exceed the established time limit. In this event,
just switch the machine off and then back on to restore normal operating conditions.
2
4
WARNING
Always check the level of the water in the boiler by means of the level-check
window placed on the front of the machine.
3
7. VOLUMETRIC DOSING
The volumetric dosing device installed on the EVD electronic machines serves the purpose
of measuring the quantity of water sent to the group of espresso delivery.
The dosing device generates an electrical 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 (5) indicates that the electrical impulse has been sent from the
dosing device to the control unit.
5
8. PRESSURE SWITCH
The pressure switch makes it possible to control boiler pressure by activating or bypassing
the heating element in the boiler.
Any calibration of the pressure switch which may be required can be carried out with the machine in operation by means of the screw (6) located on the body of the component.
WARNING
The internal contacts of the pressure switch may be subject to oxidization. It
is recommended to periodically clean the contacts with anti-oxidant spray.
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espresso coffee machine - instructions for technician
9. ANTI-FLOODING DEVICE
The cover installed on the pressure modulating switch makes it possible, by means
of the special tube, to collect and carry to the drain tub any water which may exit
the boiler to due any malfunction of the machine.
10. PUMPING SYSTEM
This is a component that serves the purpose of feeding the machine, raising the
water pressure to 8-9 bar for the delivery of the coffee and for automatic filling
of the boiler.
11. VALVE GROUP
The valves are devices whose purpose is to ensure the safety and proper operation
of the machine.
11.1 NEGATIVE PRESSURE VALVE
The purpose of the negative pressure valve is to prevent the backflow of liquids
through the steam nozzle when they are being heated. Furthermore, the excess
air is eliminated inside the boiler during the heating phase of the machine.
11.2 SAFETY OR PRESSURE RELIEF VALVE
The pressure relief valve guarantees that the pressure in the boiler does not go
above 2 bar. If there is a malfunction, the capacity of the valve is such that it can
eliminate all of the excess pressure in the valve.
11.3 EXPANSION VALVE - NON-RETURN VALVE
This is a valve consisting of an expansion valve and a non-return 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 water. To limit
increases of pressure in the hydraulic circuit, the valve limits the maximum
internal pressure of the circuit to 12 bar.
• non-return valve: Its function is that of preventing the back flow of water
from the exchangers in the hydraulic circuit.
valve
EXPANSION
valve
NON-RETURN
NOTE
On all machines with four groups, two pressure relief valves are installed.
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espresso coffee machine - instructions for technician
12. GAS SYSTEM
The gas system is useful in heating the water in the boiler. It does not, except in special cases, substitute the electrical heating system, but
rather works along with it.
For machines with levers, operation may be either electric or gas.
WARNING
If you decide to use only the gas heating system, no electrical devices are active, including automatic boiler filling.
2
Gas adjustment
•
•
•
•
•
•
•
•
1
Lighting the burner
loosen the locknut (1);
give the screw two turns and place the minimum regulator pin (2) so as to have maximum opening of the gas minimum passage;
wait for boiler pressure to reach 1.4 bar (see boiler gauge);
turn the minimum pin (2) clockwise until the burner flame is barely visible (pilot flame);
lower the pressure in the boiler down to 1 bar;
turn the adjustment screw for the maximum clockwise until the flame is up to maximum;
tighten the locknut thus locking the screw.
The operation described above places the machine in an operating range of 1.2-1.3 bar. If you want to increase or decrease operating pressure
in the boiler, proceed as above, varying the parameters as follows:
to decrease:
• set the maximum to 1.3 bar and the minimum to 0.9 bar. You will obtain pressure in the boiler of 1.1-1.2 bar.
to increase:
• adjust the maximum to 1.5 bar and the minimum to 1.1 bar. You will obtain a pressure in the boiler of 1.3-1.4 bar (this is the maximum
recommended pressure limit)
WARNING
When operating on gas, the machine emits combustion fumes directly into the surroundings where it is being used. Therefore, gas-powered machines must not be installed in rooms with a volume of less than 12 m3, as described in standards
UNI 7129 and UNI 7131.
In closed rooms, always provide ventilation openings to release any possible gas leaks.
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espresso coffee machine - instructions for technician
13. SOFTENERS
Mains water contains insoluble salts, which cause the build-up of lime scale deposits in the boiler and in other parts of the machine. The
softener makes it possible to eliminate or substantially reduce the presence of these mineral salts.
The resin softener has the property of retaining the calcium contained in the water. For this reason after a certain period the resins are
saturated and are to be regenerated with coarse kitchen salt (NaCL, sodium chloride) or special water softening salt. It is very important to
regenerate the softener within the established times.
The regeneration is to be done regularly every 15 days. However, in locations with very hard water, it will be necessary to regenerate more
frequently. The same is true of places in which there is a large consumption of hot water for tea or other uses.
Softener regeneration
Proceed as follows:
• move levers (2) and (5) from left to right;
• Remove the lid by loosening the knob (1).
• Release enough water through the pipe (3) to make room for the amount of salt as required depending on the model (see table).
• Clean any salt or resin residue from the gasket located on the lid.
• Put the lid back in place by screwing the knob (1) down securely and move the lever (2) back from right to left.
• Let the salt water drain from the small tube (4) until the water is no longer salty (about 30-60 minutes). The salt allows the accumulated
mineral salts to be released.
• Bring the lever (5) from right to left back to its initial position.
2
1
3
5
4
Model
softener
Amount
of salt
8 litres
1.0 kg
12 litres
1.5 kg
16 litres
2.0 kg
WARNING
The build-up of lime scale in the hydraulic circuit and boiler inhibit thermal exchange, thus compromising proper operation
of the machine. Heavy incrustation in the boiler may cause long machine shutdowns and in any case invalidate any guarantee, because this symptom indicates that regeneration has been neglected.
In order to keep the softener and hence the machine in
perfect operating condition, it is necessary to perform
regeneration periodically based on the use of the softener
and the hardness of the water that is used.
The table alongside shows the values of the quantity of
softened water based on the hardness of the water in the
various units of measure:
- F°: French degree
- D°: German degree
- mg CaCO3
Amount of softened water based on hardness
F°
30°
40°
60°
80°
D°
16.5°
22°
33°
44°
mg CaCO3
300
400
600
800
8 litres
1000 lt
900 lt
700 lt
500 lt
1.0 kg
12 litres
1500 lt
1350 lt
1050 lt
750 lt
1.5 kg
16 litres
2100 lt
1800 lt
1400 lt
1000 lt
2.0 kg
salt
For further information on installation, start-up and regeneration of the softener, refer to the relative instruction manual.
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espresso coffee machine - instructions for technician
14. ELECTRONIC CONTROL UNIT
The electronic control unit is installed on machines with volumetric dosing. Its purpose is to control the dose of coffee electronically by means of the water flowing
through the dosing device and to check filling of the water entry in the boiler.
This control unit is set up to be connected to the delivery accounting systems by
means of a specific interface device.
15. ELECTRONIC PUSH BUTTON PANELS
15.1 EVD PUSH BUTTON PANEL
The push button panel is connected to the control unit which allows selection and programming of the doses of coffee.
Programming is carried out in the following way:
• Place the programming lever (1) in the ON position. It is located under the front
right-hand panel of the body;
• put the coffee cup under the dispensing spout.
• press the PROG/STOP key (2) and all dose key LED will come on;
• press the desired dose key (3);
• when the desired dose has been attained, confirm by pressing the PROG/STOP key (2);
• Repeat this operation for the other dose keys.
• upon completion of programming, place the programming lever (1) back in the OFF
position.
3
3
1
3
STOP
PROG
2
2
2
In some models, the programming lever has been eliminated because to access program, and it is enough to press the PROG/STOP key for
at least 5 seconds with all push button panel LED coming on. Also, confirmation of the dose can be given by pressing either the PROG/STOP
key or the selected dose key.
In other models to access programming it is necessary to use a special key switch.
To exit programming it is sufficient to wait a few seconds.
NOTE
The programming of every dose must be done with ground coffee and not with previously used grounds.
With machines having two or three groups, by first programming the right-hand push buttons the others are automatically
programmed. It is however both possible and advisable to program the push button panels independently, always starting
from the right-hand push button panel.
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espresso coffee machine - instructions for technician
15.2 TH JUNIOR PUSH BUTTON PANEL
This push button panel is installed mainly on JUNIOR models and on some EVD volumetric dosing machines.
Programming is carried out in the following way:
• put the coffee cup under the dispensing spout.
• Press the PROG/STOP key (1) for at least 5 seconds until all dose key LED are on.
• Press the desired dose key (2).
• To confirm the dose press the dose key (2) or the PROG/STOP key again (1).
• Repeat this operation for the other dose keys.
• Programming will be terminated automatically after a few seconds.
2
1
15.3 EVDT TIMER PUSH BUTTON PANEL
The timer is installed on EVDT machines and controls delivery time of the coffee.
Programming is carried out in the following way:
1)
2)
3)
4)
5)
Press and hold down the STOP/PROG key (1) for 5 seconds and check that all of the LED on the push button panel come on. This confirms
correct entry into the programming phase.
Press on of the two dose keys (2) to program. The LED corresponding to the CONT key (continue) and to the key of the dose being
programmed stay on.
When the desired amount of coffee in the cup has been reached, press the STOP/PROG key (1) or the key of the dose being programmed
to stop delivery and memorize the new value (the duration of the dose of coffee is calculated in seconds). At the same time, the LED for
the dose which is still to be programmed comes back on, while the LED for the programmed dose stays off.
Proceed with the programming of the other coffee dose by pressing the other dose key. Once the desired amount of coffee in the cup
has been reached, press the dose key or the STOP/PROG again (1).
To exit programming, press and hold down the STOP/PROG (1) key for more than 5 seconds.
2
1
NOTE
It is possible to re-program the coffee dose that you have just finished programming (LED off) without necessarily having
to turn the system off and back on or exiting the programming phase.
The system automatically exits programming status approximately 10 seconds after the last operation.
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espresso coffee machine - instructions for technician
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16. DISPENSING HOT WATER
4
Programming
•
•
•
•
•
•
Place the programming lever in the ON position (1) it is located under the
front right panel of the body;
put the cup under the hot water nozzle (2);
press the PROG/STOP key (3) and all dose key LED will come on;
press the key to dispense hot water (4);
when the desired dose has been attained, confirm by pressing the PROG/STOP
key (3);
upon completion of programming, place the programming lever (1) back in
the OFF position
3
2
1
3
17. CAPPUCCINO MAKER
•
•
•
•
Put the suction tube in the milk;
place the pitcher under the spout of the cappuccino maker;
turn the steam tap counter-clockwise. When the desired level is reached, close the steam tap;
pour the foamed milk into the cups with the coffee.
NOTE
To obtain warm milk without foam, lift the tab (1) upwards. For best
results, we recommend not dispensing directly into the coffee cup,
but rather into a pitcher. From there, pour the foamed milk into the
coffee.
WARNING
Be sure to keep the cappuccino maker clean at all times as described
in the chapter “Cleaning”.
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CAPPUCCINO position
WARM MILK position
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espresso coffee machine - instructions for technician
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18. CUP HEATING DEVICE
The cup heating device is for heating cups before they are used.
• Place the cups on the upper surface (1) of the coffee machine.
• Start the electric heating element with the switch (2) or with the push
button panel (e.g. VENUS).
WARNING
For safety reasons we advise against putting cloths or other
objects on the upper surface of the machine as they could obstruct
normal air circulation.
2
19. 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.
Filter and filter-holder
The filters and the relative filter-holders must be cleaned daily in hot water. The best thing to do is to
let them soak in hot water overnight so that the fatty coffee deposits can dissolve.
It is advisable to add an envelope or tablet of special detergent to the water, and then to rinse
everything off with water.
Failure to clean the filters and filter holders daily will compromise the quality of the coffee and will
also cause problems such as bad extraction and coffee grounds at the bottom of the cup.
Perforated disk and containment ring
Both the shower plate (4) and its containment ring (3) should be cleaned weekly in hot water. To
do this loosen the screw (5) and remove the two elements from the dispensing unit.
Steam nozzles
The steam pipes must be kept clean at all times. Check the ends of the steam nozzles and clean
them monthly, clearing out the exit holes with a small needle.
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espresso coffee machine - instructions for technician
Delivery groups (except for ALE version)
The cleaning of the internal parts of the delivery groups is to be performed weekly in the following
manner:
• replace the normal filter of the filter-holder with a solid one;
• pour a teaspoon of a suitable detergent powder on the solid filter, and attach the filter-holder
to the group;
• use the delivery switch to set the group in operation;
• repeat the above operations until the water comes out clean;
• turn off and remove the filter-holder from the group;
• rinse a final time, so as to remove any residual detergent.
3
4
5
WARNING
Do not use a solid filter to clean the machines with a lever group (ALE)
Body
The body panels should be cleaned with a cloth soaked in warm water. Do not use abrasive detergents since the panels could get scratched.
Grinder-doser
Every week clean the bell jar and the dosing device with a cloth soaked in lukewarm water, both inside and out.
Cappuccinatore
Si raccomanda una particolare cura nella pulizia del cappuccinatore seguendo le
modalità qui riportate:
• eseguire un primo lavaggio immergendo il tubo di aspirazione in acqua ed
effettuare una erogazione per qualche secondo;
• ruotare il corpo rotante (1) di 90° in pos. B (chiusura del condotto di
fuoriuscita del latte);
• tenendo il tubo di aspirazione latte in aria, effettuare l’erogazione di vapore
(funzionamento a vuoto del cappuccinatore);
• attendere circa 20 secondi in modo da permettere la pulizia e sterilizzazione
interna del cappuccinatore;
• chiudere il vapore e riportare il corpo rotante in pos. A;
• nel caso di ostruzione del foro di prelievo dell’aria (2), liberatelo delicatamente con uno spillo.
pos. A
1
2
pos. B
ATTENZIONE
Si consiglia di effettuare la pulizia del cappuccinatore dopo ogni uso
continuativo in modo da evitare anomalie di funzionamento e garantire
un elevato grado di igienità del sistema.
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espresso coffee machine - instructions for technician
20. CHECKS AND MAINTENANCE
To ensure perfect safety and efficiency of the machine 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.
Machine
•
•
•
Carry out cleaning as described in the previous chapter on a daily basis.
Every four months replace the perforated disk (2) and the undercup seal (4) of the delivery group
(use only original spare parts) proceeding as follows:
- loosen the screw (1);
- remove the containment ring(3);
- replace the group perforated disk(2) and the rubber undercup seal (4);
- put the components back in place.
At least once a year, check for proper operation of the negative pressure valve, pressure limiting valve
and non-return drain valve. In the event of malfunction they must be replaced. For the checks, proceed
as follows:
4
3
2
negative pressure valve
- Turn the machine off;
- by means of the steam valves, release all pressure in the boiler;
- turn the machine back on and check closure of the valve.
pressure limiting valve
- Lock the pressure switch contacts.
- wait for pressure in the boiler to rise and check for intervention
of the valve at a maximum pressure of 2 bar.
1
5
6
Non-return drain valve
- Activate the delivery groups for about 30 seconds;
- attach a filter holder (5) with a gauge (available on request) to the delivery group;
- activate the delivery group, and use the gauge (6) to monitor pressure increase up to 8-9 bar;
- check the increase of pressure due to the expansion of the heated water up to a value of approximately 12 bar: reaching this value
confirms proper operation of the valve and the seal of the gaskets and solenoid valves;
- de-activate the deliveries;
- repeat the control on the other delivery groups.
•
•
•
•
•
•
•
Periodically check water pressure during coffee delivery. Check the pressure indicated on the gauge, which must be between 8 and 9 bar
inclusive.
Monitor the boiler pressure value as explained in chapter 1, “Technical characteristics”.
Periodically check the condition of the filters. Check for any damage on the edge of the filters and check whether any coffee grounds
settle in the coffee cup.
At least once a year, check for proper operation of the gauge and pressure switch;
At least once a year check for lime scale deposits on the heating element, on the exchanger (inside and out) and on the hydraulic circuit.
When replacing any components, always replace the relative gasket as well.
At least once a year, check the condition of the solenoid valve of the delivery group.
At least once a year check for trace water leaks on the counter. Also check the condition of the discharge tub and its connection to the
sewer system.
Grinder-doser
Periodically check the dose of ground coffee (inclusive between 6 and 7 gr. per stroke) and check the degree of grinding. The grinders
must always have sharp cutting edges. Their deterioration is indicated by the presence of too much powder in the grounds. It is advisable to
replace the grinders after every 400/500 kg of coffee.
Softener
The build-up of lime scale deposits in the hydraulic circuit of the machine indicates that regeneration has been neglected. Carry out maintenance of the boiler and of the hydraulic circuit, replacing any components as required.
Use care in areas where the water is very hard. It will be necessary to regenerate at more frequent intervals; likewise if there is high consumption of hot water for tea and so forth.
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espresso coffee machine - instructions for technician
21. MALFUNCTIONS AND CORRESPONDING SOLUTIONS
Indication
Cause
Solution
NO POWER
TO MACHINE
1) The machine commutator is in position “0” or “1”
2) The machine switch is defective
3) The mains power supply switch is in the OFF position
4) The connection to the electrical mains is defective
1) Turn the machine commutator to position “2”
2) Replace the main switch
3) Place the mains switch in the ON position
4) Check for any defective connections
1) Open the water mains tap
2) Open the automatic level device tap
NO WATER
IN BOILER
1) The water mains tap is closed
2) The cut-off tap of the automatic level device is in the
closed position
3) The pump filter is closed
4) The motor pump is disconnected or blocked
5) The water filling solenoid is defective
6) The water inlet solenoid valve filter is clogged
EXCESSIVE WATER
IN BOILER
1) The solenoid of the automatic level device is defective
2) The heat exchanger is perforated
3) The manual valve remains inserted
1) Replace the solenoid valve of the automatic level device
2) Replace the heat exchanger
3) Check the level probe, the earth of the
frame and the operation of the electronic control unit
STEAM DOES NOT COME
OUT OF NOZZLES
1) The electrical heating element is defective
2) The pressure switch contacts are oxidized
3) The heating element protection thermostat has cut in
4) The nozzle sprayer is clogged
5) Machine switch in position “1”
1) Replace the electrical heating element
2) Clean the contacts or replace the pressure switch
3) Reset the heating element protection
4) Clean the steam nozzle sprayer
5) Turn the machine switch to position “2”
1)The boiler level is too high
1) Check the status of the level probe:
verify correct position and check for
presence of any surface lime scale
1) No water mains
2) Group solenoid valve is defective
3) The pump is blocked
4) The control unit fuse is burned out
5) The injector is clogged
6) The group solenoid valve is clogged or dirty
7) The group filter is clogged
8) The volumetric dosing device is blocked
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 fuse (1A)
5) Clean or replace the injector
6) Clean or replace the solenoid valve
7) Clean or replace the filter
8) Check/replace the dosing device
1) The tub does not drain
2) The drain tube is detached or broken or has
obstruction to water flow
3) Hydraulic leaks in the hydraulic circuit
1) Check the sewer drain
2) Check and restore the connection of the
drain tube to the tub
3) Identify and eliminate hydraulic leaks
1) The electrical heating element is defective
2) The electrical connection is defective
3) Lime scale on the exchangers and/or heating element
4) The pressure switch contacts are oxidized
5) The heating element protection thermostat has cut in
6) Machine switch in position “1”
7) The lime scale has reduced the
circulation of water
8) The delivery group is cold
1) Replace the electrical heating element
2) Check for any defective connections
3) Clean the machine
4) Clean the contacts or replace the pressure switch
5) Reset the heating element protection
6) Turn the machine switch to position “2”
7) Clean the connections of the exchanger, and clean or
replace the two circulation tubes
8) Eliminate air pockets in the
hydraulic circuit in the following manner:
- disconnect the electrical power supply to the pump
- close the water tap of the softener
- perform a dry run of delivery for a few minutes
- reconnect the electrical power supply to the pump
- open the water outlet tap of the softener
- perform delivery until water comes out
- wait a few minutes for heating
STEAM MIXED WITH WATER
COMES OUT OF
THE NOZZLES
NO DELIVERY
WATER LEAKS
FROM THE MACHINE
COFFEE IS
TOO COLD
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3) Replace the pump filter
4) Check the motor pump
5) Replace the water filling solenoid valve
6) Clean or replace the filter of the solenoid valve
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espresso coffee machine - instructions for technician
Indication
Cause
Solution
COFFEE IS
TOO HOT
1) Boiler temperature is too high
2) The flow reducer of the group is not suitable
1) Reduce pressure in the boiler by turning the appropriate screw
on the pressure switch
2) Replace the injector with one of a smaller diameter
DELIVERY
OF COFFEE
IS TOO FAST
1) The coffee is ground too coarsely
2) The diameter of the injector is too large
3) Boiler temperature is too high
1) Adjust the grinding of the coffee
2) Replace the injector with one of a smaller diameter
3) Reduce pressure in boiler
DELIVERY
OF COFFEE
TOO SLOW
1) Coffee is ground too finely
2) The injector is clogged
3) The delivery group is clogged
4) The filter holder is dirty
1) Adjust the grinding of the coffee
2) Replace the injector
3) Check and clean the delivery group
4) Clean and if necessary replace the filters
COFFEE GROUNDS ARE
WET
1) The group solenoid valve discharge is clogged
2) The delivery group is too cold
3) Coffee is ground too finely
1) Clean the group drain
2) Wait for group to heat up completely
3) Adjust the grinding of the coffee
THE GAUGE SHOWS AN
UNACCEPTABLE
PRESSURE
1) The gauge is defective
2) Incorrect pressure switch calibration.
3) Incorrect motor pump calibration.
1) Replace the gauge
2) Adjust the calibration of the pressure switch
3) Adjust the calibration of the motor pump
GROUNDS
IN CUP
1) The filter holder is dirty
2) The filter holes are worn
3) The coffee is not ground evenly
4) The undercup seal is worn
5) The temperature of the delivery water is high
1) Clean the filter holder
2) Replace the filter
3) Replace the grinders
4) Change the seal
5) Check the causes and eliminate the problem
for EVD:
COFFEE DELIVERY
ONLY BY MEANS OF
MANUAL KEY
1) The control unit fuse is burned out
2) The coil of the solenoid valve does not work
correctly or has shorted out
1) Replace the control unit fuse (1A)
2) Replace the coil of the solenoid valve
1) The connection of the volumetric dosing device
is defective
2) The connection of the electronic control unit
is defective
3) The connector of the volumetric dosing device
has humidity on it
4) The volumetric dosing device is defective: during
delivery the dosing device LED does not flash
5) The coffee is ground too finely: there is not
sufficient water flow in the dosing device
6) The non-return valve loses pressures
(the dose is too small)
7) The drain valves lose pressure
(the dose is too small)
8) Water leakage from the group solenoid valve during
coffee delivery or when at rest
9) The volumetric dosing device is partially obstructed
1) Check for proper connection of the
volumetric dosing device connector
2) Check for proper connection of the
8-pole connector of the electronic control unit
3) Remove the connector of the volumetric dosing device
and thoroughly dry the contacts
4) Replace the heads of the volumetric dosing device
or replace the dosing device
5) Adjust the grinding suitably
and if necessary check the grinders
6) Check and if necessary replace the
non-return valve
7) Check and if necessary replace the
drain valves
8) Clean and if necessary replace
the solenoid valve
9) Clean or replace the volumetric dosing device
for EVD:
INCORRECT
COFFEE DELIVERY
THE COFFEE DOSE IS NOT
MET
THE LED OF THE
DOSE PUSH BUTTON
FLASHES
for EVD:
ALL THE LED OF ALL THE
PUSH BUTTON PANELS
FLASH
for EPU-EVDT:
THE FRONT LED
FLASHES
After a few minutes, automatic filling with water is stopped:
1) Time control device has cut in
2) No water in mains
3) The tap for the automatic level device is closed
4) Some of the tubes in the circuit are clogged
5) The probe and/or the earth are disconnected
1) Turn the machine off and then back on
2) Open the water mains tap
3) Open the automatic level device tap
4) Check and replace the defective tubes
5) Check and restore connections
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espresso coffee machine - instructions for technician
Indication
Cause
Solution
THE PUMP WORKS ONLY
WITH THE MANUAL DELIVERY KEY
1) The pump fuse of the electronic control unit
is burned out
1) Replace pump fuse of the electronic control
unit (10 A)
SHUTDOWN OF
ELECTRONIC
SYSTEM
1) The control unit fuse is burned out
2) The volumetric dosing device has a contact
of the positive pole to the earth
1) Replace the main fuse (125 mA)
2) Check for proper connection of the volumetric
dosing device
THE PUMP
LEAKS WATER
1) Poor mechanical seal of the shaft or
of the O-ring
2) The inlet and outlet connections are loose
3) The hex nut of the pressure relief valve
or of the filter are loose
4) The gasket or the O-ring of the pressure relief valve
or of the filter are defective.
1) Check the status of the pump
and take any corrective action which may be required
2) Tighten the connections
3) Tighten the hex connection of the modulating
valve and of the filter
4) Replace the gasket and the O-ring. Take care
not to change the calibration of the valve
THE MOTOR STOPS
SUDDENLY OR
THE THERMAL PROTECTION
CUTS IN DUE TO
AN OVERLOAD
1) Lime scale and mineral build-ups in the
pump have caused it to jam
2) The pump and the engine are not aligned.
3) The motor is defective
4) The motor is connected with a voltage that
is not correct
1) Check the status of the pump
and if necessary replace it
2) Install the pump-motor joint
3) Replace the motor
4) Ascertain that the power supply voltage
of the motor is the right one
THE PUMP FUNCTIONS
BELOW THE NOMINAL
CAPACITY
1) The inlet is clogged, perhaps only partially
2) The pump rotates in the wrong direction.
3) The pressure relief valve is not properly calibrated
4) The motor runs at low RPM
5) The inside of the pump is damaged
due to the infiltration of foreign bodies
1) Clean the filter holder
2) Check the motor
3) Calibrate the pressure relief valve
4) Check the voltage or replace the motor
5) Replace the pump
THE PUMP
IS NOISY
1) The pump and the engine are not aligned.
2) The gasket or the O-ring of the pressure relief valve
or of the filter are defective.
3) The joint, the coupling screw or the
V-shaped clamp are loose.
4) The inlet is clogged, perhaps only partially
5) The hex nut of the pressure relief valve
or of the filter is loose
1) Install the pump-motor joint
2) Replace the gasket and the O-ring. Take care
not to change the calibration of the valve
3) Align and tighten the components which are
loose
4) Clean the filter holder
5) Tighten the hex connection of the pressure relief
valve and of the filter
THE CUP IS
DIRTIED BY
SPLASHES OF COFFEE
1) Steam pockets in the delivery system
2) Air pockets in the hydraulic circuit
3) Coffee is ground too finely
4) The flow reducer of the group is not suitable
1) Reduce water temperature
2) Check the cause and eliminate the problem
3) Adjust the grinding suitably
4) Replace the flow reducer
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espresso coffee machine - instructions for technician
22. LIST OF HAZARDS
This chapter describes possible hazards for the user if the specific safety standards described in this booklet are not adhered to.
The appliance must be connected to an efficient grounding system
If this is not done, the appliance can be a source of dangerous electrical discharges in that it is no longer able to discharge electricty to
earth.
Do not use running water to wash
The use of pressurized water directly on the machine can seriously damage electrical appliances. Never use water jets to wash any part of
the appliance.
Be careful with the steam nozzles and hot water
During use, the steam nozzles and hot water may overheat, thus becoming a source of danger. Handle such parts carefully. Never direct
steam or hot water jets directly on parts of the body.
Do not intervene on the machine when it is supplied with electrical power.
Before carrying out any intervention on the machine you must turn it off by means of the main network switch or better yet, disconnecting the
connection terminals in the network. Never remove any body panel when the machine is supplied with electrical power.
Never work on the hydraulic system before having emptied it.
All work regarding the hydraulic system and the relative boiler are to be avoided when there is still water and pressure in the system. You
must therefore empty it beforehand, closing the mains cock and dry-running the delivery group for a short time. Switch off the machine and
open all the steam and water cocks and taps. With the pressure zero, completely empty the boiler, unscrewing the special pipe fitting situated
on the lower part of it.
If the above procedure is not correctly carried out, opening any part of the hydraulic system can cause a sudden outlet of overheated water
under pressure.
Lever machines
Never lower the lever if there is no coffee in the filter, or if the filter holder is not installed on the group: the sudden upwards movement of the
lever may damage the appliance and injure individuals.
Gas machines
Periodically check for gas leaks in the system by applying a soapy solution to the ducts.
For safety reasons, close the gas heating system when the machine is not in use (at night or during hours of closure)
Use of the appliance
This espresso coffee machine is an appliance exclusively for professional use. Any other type of use is considered wrong and therefore dangerous. Never allow children or incapable persons to use the machine.
Non-observance of the above-described standards can cause serious damage to people or animals.
Never work on the electronic apparatus when the machine is still supplied with electrical energy.
Shut down the machine completely by unplugging it from the mains before carrying out any operation.
WARNING
Any action taken by a technician on the electronics of the machine when the machine is still supplied with electrical power
automatically invalidates any guarantee.
The technician needs to be aware that the machine is electrically connected and act accordingly.
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ENGLISH
ESPRESSO COFFEE MACHINE
USE AND MAINTENANCE MANUAL
Instructions for the user
HYDRAULIC DIAGRAMS
R
Via Santi, 9 - 40011 ANZOLA EMILIA (BO) - ITALY
Tel. +39.051.6500900 - Fax +39.051.733701
www.wega.it - commerciale@wega.it
Summary
1. LEVER GROUP hydraulic diagram .......................................................................................................... 5
2. EPU - LEVETTA hydraulic diagram ......................................................................................................... 6
3. EVD hydraulic diagram ........................................................................................................................... 7
R
espresso coffee machine - hydraulic diagrams
1. LEVER GROUP hydraulic diagram
8
7
10
14
9
12
11
5
14
6
4
15
3
1
13
11
6
S
2
E
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
E
S
Manual water inlet tap
Drain tub
Gauge
Boiler level-check window
Boiler
Delivery group
Hot water tap
Steam tap
Safety valve
Negative pressure valve
Tap
Pressure switch
Automatic Water Inlet Solenoid Valve (optional)
Water inlet filter
Boiler heating element
Water inlet
Drain
English
IDR 5
R
espresso coffee machine - hydraulic diagrams
2. EPU - LEVETTA hydraulic diagram
13
14
14
15
16
11
11
19
20
8
9
10
22
24
17
2
2
17
5
12
6
18
21
1
3
12
E
4
2
7
S
18
IDR 6
English
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Water softener
Water inlet filter
Built-in motor pump
Pump pressure adjustment
Manual water inlet tap
SCNR valve
Drain tub
Gauge
Level-check window
Boiler
Heat exchanger
Delivery group
Hot water tap
Steam tap
Safety valve
Negative pressure valve
Boiler drain tap
Group solenoid valve
Pressure switch
Automatic Water Inlet Solenoid Valve
Water inlet connection
External motor pump
Water distributor
Boiler heating element
Internal motor pump
5
1
2
E
4
23
External motor pump
E Water inlet
S Drain
R
espresso coffee machine - hydraulic diagrams
3. EVD hydraulic diagram
14
13
14
15
16
11
11
19
20
8
9
10
22
24
17
2
2
17
5
12
6
18
21
1
3
22
12
E
4
2
7
S
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Water softener
Water inlet filter
Built-in motor pump
Pump pressure adjustment
Manual water entry tap
SCNR valve
Drain tub
Gauge
Level-check window
Boiler
Heat exchanger
Delivery group
Hot water tap
Steam tap
Safety valve
Negative pressure valve
Boiler drain tap
Group solenoid valve
Pressure switch
Automatic Water Inlet solenoid valve
Water inlet connection
Volumetric dosing device
External motor pump
Water distributor
Boiler heating element
Internal motor pump
5
1
2
E
4
23
External motor pump
E Water inlet
S Drain
English
IDR 7
ENGLISH
ESPRESSO COFFEE MACHINE
USE AND MAINTENANCE MANUAL
Instructions for the user
ELECTRICAL DIAGRAMS
R
Via Santi, 9 - 40011 ANZOLA EMILIA (BO) - ITALY
Tel. +39.051.6500900 - Fax +39.051.733701
www.wega.it - commerciale@wega.it
Summary
1. Electrical diagram ELECTRICAL MAINS CONNECTION ................................................................................ 4
2. Electrical diagram MACHINE POWER SUPPLY............................................................................................. 5
3. Electrical diagram version ALE with automatic water inlet ....................................................................... 6
4. Electrical diagram version EPU ................................................................................................................. 7
5. Electrical diagram version EVDT ................................................................................................................ 8
6. Electrical diagrams version EVD ................................................................................................................ 9
6.01 Electrical diagram code WY18077-WY18078-WY18079 *GIEMME* ........................................................................10
6.02 Electrical diagram code WY18077-WY18078-WY18079 *GICAR* ...........................................................................11
6.04 Electrical diagram code WY18362-WY18363-WY18365-WY18366 .........................................................................13
6.05 Electrical diagram code WY18090016-WY18090017 ..............................................................................................14
6.06 Electrical diagram code WY18090016-WY18090017 ..............................................................................................15
6.07 Electrical diagram code WY18090030-WY18090031 *GIEMME* .............................................................................16
6.08 Electrical diagram code WY18090030-WY18090031 *GICAR* ...............................................................................17
6.11 Electrical diagram code WY18090047-48 *POLARIS-VENUS* PLUS 1 rev.0 .........................................................18
6.13 Electrical diagram code WY18090037-38 *POLARIS-VENUS* PLUS 2 rev.0 ..........................................................19
6.13.1 Electrical diagram code WY18090037-38-47-48 *POLARIS-VENUS* PLUS 1-2 rev.1 .........................................20
6.14 Electrical diagram code WY18090051-52 *POLARIS* PLUS 3 rev.0 .........................................................................22
6.22 Electrical diagram code WY18090012-13-14-15 *SPHERA*.................................................................................24
6.24 Electrical diagram code WY18090018 - WY18090019 *SPHERA DISPLAY* ..........................................................25
R
espresso coffee machine - electrical diagrams
1. Electrical diagram ELECTRICAL MAINS CONNECTION
single phase 120-230-240V
MA
3-conductor cable
BL
R
N
GV
C
single phase 120-230-240V
MA
NE
BL
three phase 230-240V
R
N
GV
MA
NE
BL
R
S
T
GV
C
C
4-conductor cable
single phase 120-230-240V
MA
NE
GR
BL
three phase 230-240V
R
N
MA
GV
NE
GR
BL
GV
three phase 400V
R
S
T
MA
NE
GR
C
3-conductor cable + Neutral + Earth
R
S
T
N
ELE 4
English
Phase
Phase
Phase
Neutral
C
C
BL
C
GV
GR
MA
NE
Blue
Machine cable
Yellow-green
Grey
Brown
Black
BL
GV
R
S
T
N
R
espresso coffee machine - electrical diagrams
2. Electrical diagram MACHINE POWER SUPPLY
R
N
MA
13
15
GV
BL
9
11
5
7
1
3
BL
CO
16
14
12
10
SA
PR
RE
230 V
240 V
4
2
8
6
MA
MA
BL
CT
R
S
T
N
GV
13
15
9
11
5
7
16
14
12
10
8
6
1
3
CO
4
2
SA
PR
RE
400 V
MA
BL
CT
4
SA
PR
RE
230 V
240 V
2
6
14
CT
CO
PR
SA
RE
Power supply connector
Commutator
Pressure switch
Heating element protection
heating element
R
S
T
N
Phase
Phase
Phase
Neutral
BL Blue
GV Yellow-green
MA Brown
English
ELE 5
R
espresso coffee machine - electrical diagrams
3. Electrical diagram version ALE with automatic water inlet
MA
BL
LED
CT
FU
BI
RO
NE
GV
SL
1
2
4
RL30
6
8
9
CAL
10
BL
BL
GV
EC
CAL Boiler
BI
White
CT
Power supply connector
BL
Blue
EC
Boiler filling solenoid valve
GV
Yellow-green
FU
Fuse
MA Brown
LED Time limit LED
ELE 6
English
RL30
Electronic control unit
SL
Level probe
NE
Black
RO
Red
R
espresso coffee machine - electrical diagrams
4. Electrical diagram version EPU
MA
NE
BL
LED
NE
CT
FU
BI
1
RO
2
NE
GV
SL
4
RL30
6
8
9
CAL
10
MP
BI
BL
NE
BI
BI
I2
I1
BI
RO
BI
RO
GV
E1
BI
I3
BI
I4
BI
RO
GV
GV
E2
E3
CAL Boiler
BI
White
CT
Power supply connector
BL
Blue
EC
Boiler filling solenoid valve
GV Yellow-green
E... Group solenoid valve
MA Brown
FU
NE
Black
RO
Red
Fuse
I... Delivery switch...
BI
RO
BI
NE
GV
E4
GV
EC
MP Motor pump
RL30 Electronic control unit RL30
SL
Level probe
English
ELE 7
TP3
VE
TP2
BL
VE
Green
VE
TP4 Timer GR4
TP3 Timer GR3
Red
I2
RO
Level probe
TP1 Timer GR1
SL
MP Pump
RO
VE
TP2 Timer GR2
Blue
BL
BI
BL
I3
VE
MA Brown
White
VE
BI
RO
TP4
BL
VE
RO
BL
BL
I4
BI
RO
RO
RO
BL
RO
BI
RO
TP1
BL
RO
RO
RO
BL
English
VE
I1
RO
MA
ELE 8
BI
CT
CAL
CT
EVC
EV1
EV2
EV3
EV4
I1
I2
I3
I4
MP
EV2
EV3
EV4
Boiler
Power supply connector
Boiler filling solenoid valve
Solenoid valve GR1
Solenoid valve GR2
Solenoid valve GR3
Solenoid valve GR4
Delivery switch GR1
Delivery switch GR2
Delivery switch GR3
Delivery switch GR4
CAL
SL
BL
RO
R
espresso coffee machine - electrical diagrams
5. Electrical diagram version EVDT
EVC
EV1
MA
NE
VE
R
espresso coffee machine - electrical diagrams
6. Electrical diagrams version EVD
The table below shows, for each model of machine, the code for the control unit and the reference for the electrical diagram which can be
consulted on the following pages
MACHINE MODEL
CODE
CONTROL UNIT
diagram
GIEMME
diagram
GICAR
Airy - 120V
WY18363
Airy - 230V
WY18362
6.04
Atlas - 120V
WY18090030
6.07
6.08
Atlas - 230V
WY18090031
6.07
6.08
6.04
Colosseum - 120V
WY18090017
6.05
6.06
Colosseum - 230V
WY18090016
6.05
6.06
Combinova - 120V
WY18363
Combinova - 230V
WY18362
6.04
6.04
Espressa - 120V
WY18090030
6.07
6.08
Espressa - 230V
WY18090031
6.07
6.08
Euro 2000 - 120V
WY18366
Euro 2000 - 230V
WY18365
Formula Milano 1-2-3 GR - 120V
WY18078
6.01
6.02
Formula Milano 1-2-3 GR - 230V
WY18079
6.01
6.02
6.04
6.04
Formula Milano 4 GR - 240V
WY18077
6.01
6.02
Nova 1-2-3 GR - 120V
WY18078
6.01
6.02
Nova 1-2-3 GR - 230V
WY18079
6.01
6.02
Nova 4 GR - 230V
WY18077
6.01
Nova JUN - 120V
WY18363
Nova JUN - 230V
6.02
6.04
WY18362
6.04
Orion - 120V
WY18090030
6.07
6.08
Orion - 230V
WY18090031
6.07
6.08
Polaris - 120V PLUS 1 rev.0
WY18090047
Polaris - 230V PLUS 1 rev.0
WY18090048
6.11 rev.0
Polaris - 120V PLUS 1 rev.1
WY18090047
6.13 rev.1
Polaris - 230V PLUS 1 rev.1
WY18090048
6.13 rev.1
Polaris display - 120V PLUS 2 rev.0
WY18090037
6.13 rev.0
Polaris display - 230V PLUS 2 rev.0
WY18090038
6.13 rev.0
Polaris display - 120V PLUS 2 rev.1
WY18090037
6.13 rev.1
Polaris display - 230V PLUS 2 rev.1
WY18090038
6.13 rev.1
Polaris display - 120V PLUS 3
WY18090051
6.14
Polaris display - 230V PLUS 3
WY18090052
Snow ball - 120V
WY18090030
6.07
6.08
Snow ball - 230V
WY18090031
6.07
6.08
6.11 rev.0
6.14
Sphera 1-2-3 GR - 120V
WY18090013
6.22
Sphera 1-2-3 GR - 230V
WY18090012
6.22
Sphera 4 GR - 120V
WY18090015
6.22
Sphera 4 GR - 230V
WY18090014
6.22
Sphera display - 120V
WY18090019
6.24
Sphera display - 230V
WY18090018
Start - 120V
WY18090030
6.07
6.08
Start - 230V
WY18090031
6.07
6.08
Syntesis - 120V
WY18090030
6.07
6.08
Syntesis - 230V
WY18090031
6.07
Venus - 120V PLUS 1 rev.0
WY18090047
Venus - 230V PLUS 1 rev.0
WY18090048
6.11 rev.0
Venus - 120V PLUS 1 rev.1
WY18090047
6.13 rev.1
Venus - 230V PLUS 1 rev.1
WY18090048
6.13 rev.1
Venus display - 120V PLUS 2 rev.0
WY18090037
6.13 rev.0
Venus display - 230V PLUS 2 rev.0
WY18090038
6.13 rev.0
Venus display - 120V PLUS 2 rev.1
WY18090037
6.13 rev.1
Venus display - 230V PLUS 2 rev.1
WY18090038
6.13 rev.1
6.24
6.08
6.11 rev.0
English
ELE 9
ELE 10
English
JP1
JP2
JP3
JP4
JP6
CT
+
CV1
O
-
+
CV2
O
-
Boiler filling with pump
Tea delivery with pump
Dose programming enabled
JUMPER INSERTED
Serial connection enabled
Pre-infusion enabled
GV
+
CV3
O
-
+
CV4
O
-
JUMPER NOT INSERTED
Serial connection disabled
Pre-infusion disabled
Dose programming disabled
Boiler filling without pump
Tea delivery without pump
RO
BI
CAL
SL
MA
MA
MA
MA
NE
BL
NE
BI
BL
GV
MA
NE
RO
VE
P10
P11
White
Blue
Yellow-green
Brown
Black
Red
Green
TRF1
IC2
F1
JP3
JP2
JP6
CAL
CT
CV1
CV2
CV3
CV4
EV1
EV2
EV3
EV4
EVC
EVT
F1
F2
IC2
MP
P1
P2
P3
P4
P5
RL8
RL6
RL5
RL4
RL3
RL2
RL1
Boiler
Power supply connector
Volumetric counter GR1
Volumetric counter GR2
Volumetric counter GR3
Volumetric counter GR4
Solenoid valve GR1
Solenoid valve GR2
Solenoid valve GR3
Solenoid valve GR4
Boiler filling solenoid valve
Tea solenoid valve
Inlets fuse (500mA)
Motor pump fuse (6,3A)
Eprom
Pump
Push button panel connector GR1
Push button panel connector GR2
Push button panel connector GR3
Push button panel connector GR4
Tea dose
JP4
JP1
P7
P4
P3
P2
P6
P8
P1
P5
P9
F2
EVT
EV1
EV4
EVC
EV3
EV2
P6 Not managed
P7 Serial connection
P9 Service outputs connector
P10 Low voltage power supply
P11 Power supply
RL1 Pump relay
RL2 Solenoid valve relay GR2
RL3 Solenoid valve relay GR3
RL4 Boiler solenoid valve relay
RL5 Solenoid valve relay GR4
RL6 Solenoid valve relay GR1
RL8 Tea solenoid valve relay
SL Boiler level probe
TRF1 Transformer
BI
White
BL Blue
GV Yellow-green
MA Brown
NE Black
RO Red
VE Green
VE
RO
BL
VE
VE
VE
VE
VE
MP
R
espresso coffee machine - electrical diagrams
6.01 Electrical diagram code WY18077-WY18078-WY18079 *GIEMME*
CT
GV
+
-
+
CV2
O
-
-
AN3
CV3
AN2
+
O
JUMPER
Jumper between 1 and 2
AN2
Jumper between 2 and 3
Jumper between 1 and 2
AN3
Jumper between 2 and 3
CV1
O
RO
BI
CV4
-
ACTIVATION
Pre-infusion OFF
Pre-infusion ON
Programming OFF
Programming ON
+
O
BI
BL
GV
MA
NE
RO
VE
CAL
SL
VER
CN2
CN1
White
Blue
Yellow-green
Brown
Black
Red
Green
MA
MA
MA
MA
NE
BL
NE
F0
TR
CP3
CP3
CP4
CP5
AN3
CP1
AN2
CP2
Boiler
Power supply connector
Volumetric counter GR1
Volumetric counter GR2
Volumetric counter GR3
Volumetric counter GR4
Selection counter
Solenoid valve GR1
Solenoid valve GR1
Solenoid valve GR1
Solenoid valve GR1
Filling solenoid valve Boiler
CP2
CP4
CAL
CT
CV1
CV2
CV3
CV4
D
EV1
EV2
EV3
EV4
EVC
CP1
CP5
VER
UPF
TXD
RXD
GN
UPR
F5
F4
F3
F0
F1
F2
F3
F4
F5
F6
CP1
CP2
CP3
CP4
CP5
CN1
CN2
CN3
SL
TR
UPF
UPR
VER
F2
RO
BL
VE
VE
VE
VE
VE
Inlets fuse (0.125a)
Pump fuse (6.3A)
Solenoid valve fuse GR2 (1A)
Solenoid valve fuse GR3 (1A)
Boiler solenoid valve fuse (1A)
Solenoid valve fuse GR4 (1A)
Solenoid valve fuse GR1 (1A)
Push button panel connector GR1
Push button panel connector GR2
Push button panel connector GR3
Push button panel connector GR4
Serial connector
Service outputs connector
Low voltage power supply
Power supply connector
Level probe
Transformer
Pre-infusion output
Programming output
Vertical printed circuit
F6
CN3
F1
EV1
EV4
EVC
EV3
EV2
MP
espresso coffee machine - electrical diagrams
R
6.02 Electrical diagram code WY18077-WY18078-WY18079 *GICAR*
English
ELE 11
R
espresso coffee machine - electrical diagrams
ELE 12
English
SPIA
+
CV
O
CAL
CM
CN1
CN2
CN3
CN4
CT
CV
-
IP
CN3
CN4
Boiler
Membrane connection
Power supply and services outputs
Dosing device output
Programming switch
Boiler level
Power supply connector
Volumetric counter
CN2
CM
CAL
SL
EVC
EVE
IP
MP
SL
SPIA
TR
CT
CN1
Filling solenoid valve
Delivery solenoid valve
Programming switch
Pump
Level probe
On indicator light
Transformer
TR
EVE
MP
EVC
espresso coffee machine - electrical diagrams
R
6.04 Electrical diagram code WY18362-WY18363-WY18365-WY18366
English
ELE 13
ELE 14
English
O
-
O
CV2
+
-
O
CV3
+
-
JUMPER INSERTED
Serial connection enabled
Pre-infusion enabled
Dose programming enabled
Tea delivery with pump
Tea key enabled
CV1
+
JP1
JP2
JP3
JP4
JP5
GV
CT
RO
BI
O
CAL
JUMPER NOT INSERTED
Serial connection disabled
Pre-infusion disabled
Dose programming disabled
Tea delivery without pump
Tea key disabled
CV4
+
SL
MA
MA
MA
MA
NE
BL
NE
JP5
TR
F1
IC2
BI White
BL Blue
GV Yellow-green
MA Brown
NE Black
RO Red
VE Green
P10
P11
JP1
JP3
JP2
CAL
CT
CV1
CV2
CV3
CV4
EV1
EV2
EV3
EV4
EVC
EVT
F1
F2
IC2
MP
Boiler
Power supply connector
Volumetric counter GR1
Volumetric counter GR2
Volumetric counter GR3
Volumetric counter GR4
Solenoid valve GR1
Solenoid valve GR2
Solenoid valve GR3
Solenoid valve GR4
Boiler filling solenoid valve
Tea solenoid valve
Inlets fuse (500mA)
Motor pump fuse (6,3A)
Eprom
Pump
JP4
JP6
P4
P3
P2
P6
P7
P1
P5
RL8
RL6
RL5
RL4
RL3
RL2
RL1
P9
F2
P1
P2
P3
P4
P5
P6
P7
P9
P10
P11
RL1
RL2
RL3
RL4
RL5
RL6
RL8
SL
TRF
EVT
EV1
EV4
EVC
EV3
EV2
Push button panel connector GR1
Push button panel connector GR2
Push button panel connector GR3
Push button panel connector GR4
Tea dose
Not managed
Serial connection
Service outputs connector
Low voltage power supply
Power supply
Pump relay
Solenoid valve relay GR2
Solenoid valve relay GR3
Boiler solenoid valve relay
Solenoid valve relay GR4
Solenoid valve relay GR1
Tea solenoid valve relay
Boiler level probe
Transformer
VE
RO
BL
VE
VE
VE
VE
VE
MP
R
espresso coffee machine - electrical diagrams
6.05 Electrical diagram code WY18090016-WY18090017
CT
GV
O
-
JP1
JP2
JP3
JP4
JP5
JP6
JP8
CV1
+
O
O
O
CV4
+
CAL
Boiler filling with pump
Configuration “C”
Tea delivery without pump
I/O Interface
-
Configuration “W”
Tea delivery with pump
Control D
CV3
+
JUMPER NOT INSERTED
Serial connection disabled
Pre-infusion disabled
Dose programming disabled
Boiler filling without pump
-
SL
MA
MA
MA
MA
NE
BL
NE
JUMPER INSERTED
Serial connection enabled
Pre-infusion enabled
Dose programming enabled
CV2
+
RO
BI
CN2
CN1
BI
BL
GV
MA
NE
RO
VE
White
Blue
Yellow-green
Brown
Black
Red
Green
F2
GN
RXD
TXD
VAL
JP3
JP1
CAL
CT
CV1
CV2
CV3
EV1
EV2
EV3
EVC
EVT
F2
F4
JP8
JP6
JP4
Boiler
Power supply connector
Volumetric counter GR1
Volumetric counter GR2
Volumetric counter GR3
Solenoid valve GR1
Solenoid valve GR2
Solenoid valve GR3
Boiler filling solenoid valve
Tea solenoid valve
Inlets fuse (500mA)
Motor pump fuse (6.3A)
JP5
JP2
CT4
CT3
CT2
TE2
CLS
CT1
TE1
CN3
F4
MP
CT1
CT2
CT3
CT4
TE1
TE2
CLS
CN1
CN2
CN3
SL
VE
RO
BL
VE
VE
VE
VE
VE
Pump
Push button panel connector GR1
Push button panel connector GR2
Push button panel connector GR3
Push button panel connector GR4
Tea dose
Not managed
Serial connection
Power supply
Low voltage power supply
Service outputs connector
Boiler level probe
EVT
EV1
EV4
EVC
EV3
EV2
MP
espresso coffee machine - electrical diagrams
R
6.06 Electrical diagram code WY18090016-WY18090017
English
ELE 15
ELE 16
O
CV1
+
-
JUMPER INSERTED
Pre-infusion enabled
Dose programming enabled
GV
O
-
O
CV3
+
-
RO
BI
JUMPER NOT INSERTED
Pre-infusion disabled
Dose programming disabled
Boiler filling without pump
Tea key disabled
Tea delivery without pump
STOP key continuation enabled
CV2
+
JP2
JP3
Boiler filling with pump
JP4
Tea key enabled
JP5
Tea delivery with pump
JP6
STOP
key continuation enabled
JP7
English
CAL
SL
BI
BL
GV
MA
NE
RO
VE
MA
MA
MA
NE
BL
NE
CN10
CN11
White
Blue
Yellow-green
Brown
Black
Red
Green
CN3
JP3
CN9
CN4
JP5
CT
IC3
CAL
CT
CV1
CV2
CV3
EV1
EV2
EV3
EVC
EVT
F1
F2
IC3
MP
JP6
JP4
F2
JP7
JP2
TRF1
RL1
RL2
RL3
RL4
RL5
RL6
Boiler
Power supply connector
Volumetric counter GR1
Volumetric counter GR2
Volumetric counter GR3
Solenoid valve GR1
Solenoid valve GR2
Solenoid valve GR3
Boiler filling solenoid valve
Tea solenoid valve
Motor pump fuse (6.3A)
Inlets fuse (500mA)
Eprom
Pump
PLT
CN1
F1
CN2
VE
VE
RO
BL
VE
VE
VE
RO
BI
CN1
CN2
CN3
CN4
CN9
CN10
CN11
PLT
RL1
RL2
RL3
RL4
RL5
RL6
SL
TRF1
Service outputs connector
Power supply connector
Low voltage power supply
Programming connector
Push button panel connector GR3
Push button panel connector GR2
Push button panel connector GR1
Tea push button
Tea solenoid valve relay
Solenoid valve relay GR1
Boiler solenoid valve relay
Solenoid valve relay GR3
Solenoid valve relay GR2
Pump relay
Boiler level probe
Transformer
EVT
EV1
EVC
EV3
EV2
MP
R
espresso coffee machine - electrical diagrams
6.07 Electrical diagram code WY18090030-WY18090031 *GIEMME*
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
CT
O
CV1
+
-
O
CV2
+
-
Boiler filling with pump
Tea key enabled
Tea delivery with pump
Not managed
Not managed
JUMPER INSERTED
Not managed
Pre-infusion enabled
Dose programming enabled
GV
O
CAL
SL
JUMPER NOT INSERTED
Not managed
Pre-infusion disabled
Dose programming disabled
Boiler filling without pump
Tea key disabled
Tea delivery without pump
Not managed
Not managed
CV3
+
RO
BI
MA
MA
MA
NE
BL
NE
CN4
BI
BL
GV
MA
NE
RO
VE
White
Blue
Yellow-green
Brown
Black
Red
Green
JP5
JP8
JP1
JP2
CN5
JP7
CN7
TR
CAL
CT
CV1
CV2
CV3
EV1
EV2
EV3
EVC
EVT
JP4
JP6
CN6
VE
VE
VE
RO
BL
VE
VE
RO
BI
Boiler
Power supply connector
Volumetric counter GR1
Volumetric counter GR2
Volumetric counter GR3
Solenoid valve GR1
Solenoid valve GR2
Solenoid valve GR3
Boiler filling solenoid valve
Tea solenoid valve
JP8
F1
CN2
F1
MP
CN2
CN3
CN4
CN5
CN6
CN7
SL
TR
Inlets fuse (500mA)
Pump
Power supply
Push button panel connector GR1
Push button panel connector GR2
Push button panel connector GR3
Service outputs connector
Low voltage power supply
Boiler level probe
Transformer
EVT
EV1
EVC
EV3
EV2
MP
espresso coffee machine - electrical diagrams
R
6.08 Electrical diagram code WY18090030-WY18090031 *GICAR*
English
ELE 17
CN3
English
O
-
JP1
JP2
JP4
JP6
JP7
JP8
JP9
JP12
JP14
JP15
JP16
JP17
JP18
CV1
+
ELE 18
GV
CV2
+
O
-
CV3
+
O
-
CV4
+
O
JUMPER INSERTED
Serial transmission enabled
Pre-infusion enabled
Boiler filling with pump
Tea delivery with pump
STOP key continuation enabled
Not managed
Reset card software
Not managed
Not managed
Not managed
6-key dosing device enabled
Not managed
Not managed
CT
CAL
SL
MA
MA
MA
MA
NE
BL
NE
JUMPER NOT INSERTED
Serial transmission disabled
Pre-infusion disabled
Boiler filling without pump
Tea delivery without pump
STOP key continuation enabled
Not managed
------Not managed
Not managed
Not managed
6-key dosing device disabled
Not managed
Not managed
-
RO
BI
CN2
CN1
F2
TRF2
BI
BL
GV
MA
NE
RO
VE
CN6
CV1
CV2
CV3
CV4
EV1
EV2
EV3
EV4
EVC
EVT
RL1
RL2
RL3
RL4
RL5
RL6
RL7
RL8
RL9
RL10
JP8
JP16
JP4
JP1
JP17
JP9
JP2
JP18
JP15
JP7
JP6
IC4
GND
RXD
TXD
CN7
White
Blue
Yellow-green
Brown
Black
Red
Green
RL10
CN5
JP14
JP12
CN4
JP3
JP5
RL9
RL8
RL7
RL6
RL5
RL4
RL3
RL2
RL1
CN14
F1
Volumetric counter GR1
Volumetric counter GR2
Volumetric counter GR3
Volumetric counter GR4
Solenoid valve GR1
Solenoid valve GR1
Solenoid valve GR1
Solenoid valve GR1
Boiler filling solenoid valve
Tea solenoid valve
Tea solenoid valve relay
Solenoid valve relay GR2
Solenoid valve relay GR3
Boiler solenoid valve relay
Solenoid valve relay GR4
Solenoid valve relay GR1
On/off relay
Boiler heating element relay
Tea solenoid valve relay
Cup heater heating element relay
CN6
CN13
CN12
CN11
CN10
CAL
CT
F1
F2
IC4
MP
SL
TLR
TRF2
CN1
CN2
CN4
CN5
CN6
CN7
CN10
CN11
CN12
CN13
CN14
JP3
JP5
VE
MA
RO
BL
VE
VE
VE
VE
VE
Boiler
Power supply connector
Motor pump fuse (6.3A)
Inlets fuse (500mA)
Microprocessor
Pump
Level probe
Remote switch
Transformer
Power supply connector
Low voltage power supply
Serial transmission connector
Not managed
Vertical card cup heater heating element
Cup heater temperature probe connector
Push button panel connector GR1
Push button panel connector GR2
Push button panel connector GR3
Push button panel connector GR4
Service outputs connector
Programming
Tea dose
EVT
TLR
EV1
EV4
EVC
EV3
EV2
MP
R
espresso coffee machine - electrical diagrams
6.11 Electrical diagram code WY18090047-48 *POLARIS-VENUS* PLUS 1 rev.0
GV
-
-
CV3
O
-
CV4
O
JUMPER INSERTED
Serial transmission enabled
Pre-infusion enabled
CV2
O
JP1
JP2
Boiler filling with pump
JP4
Tea delivery with pump
JP6
JP7 STOP key continuation enabled
Not managed
JP8
Reset card software
JP9
Not managed
JP12
Not managed
JP14
Keypad
function
keys enabled
JP15
JP16 6-key dosing device enabled
Not managed
JP17
Not managed
JP18
CV1
O
CT
-
RO
BI
CN2
JUMPER NOT INSERTED
Serial transmission disabled
Pre-infusion disabled
Boiler filling without pump
Tea delivery without pump
STOP key continuation enabled
Not managed
------Not managed
Not managed
Display function keys enabled
4-key dosing device enabled
Not managed
Not managed
CAL
SL
MA
MA
MA
MA
NE
BL
NE
CN1
F2
TRF2
BI
BL
GV
MA
NE
RO
VE
White
Blue
Yellow-green
Brown
Black
Red
Green
RL10
CN5
JP14
CN6
TX
RX
JP12
Vcc
GND
CN3
JP7
CV1
CV2
CV3
CV4
EV1
EV2
EV3
EV4
EVC
EVT
RL1
RL2
RL3
RL4
RL5
RL6
RL7
RL8
RL9
RL10
JP8
JP16
JP4
JP1
JP17
JP9
JP2
JP18
JP15
JP6
IC4
CN8
RL9
RL8
RL7
RL6
RL5
RL4
RL3
RL2
RL1
CN14
F1
Volumetric counter GR1
Volumetric counter GR2
Volumetric counter GR3
Volumetric counter GR4
Solenoid valve GR1
Solenoid valve GR1
Solenoid valve GR1
Solenoid valve GR1
Filling solenoid valve Boiler
Tea solenoid valve
Tea solenoid valve relay
Solenoid valve relay GR2
Solenoid valve relay GR3
Boiler solenoid valve relay
Solenoid valve relay GR4
Solenoid valve relay GR1
On/off relay
Boiler heating element relay
Tea solenoid valve relay
Cup heater heating element relay
CN6
CN13
CN12
CN11
CN7
JP3
CN4
CN10
JP10
JP5
CAL
CT
F1
F2
IC4
MP
SL
TLR
TRF2
CN1
CN2
CN3
CN4
CN5
CN6
CN7
CN8
CN10
CN11
CN12
CN13
CN14
JP3
JP5
VE
MA
RO
BL
VE
VE
VE
VE
VE
Boiler
Power supply connector
Motor pump fuse (6.3A)
Inlets fuse (500mA)
Microprocessor
Pump
Level probe
Remote switch
Transformer
Power supply connector
Low voltage power supply
Display connector
Serial transmission connector
Not managed
Vertical card cup heater heating element
Cup heater temperature probe connector
Boiler probe connector
Push button panel connector GR1
Push button panel connector GR2
Push button panel connector GR3
Push button panel connector GR4
Service outputs connector
Programming
Tea dose
EVT
TLR
EV1
EV4
EVC
EV3
EV2
MP
espresso coffee machine - electrical diagrams
R
6.13 Electrical diagram code WY18090037-38 *POLARIS-VENUS* PLUS 2 rev.0
English
ELE 19
ELE 20
CT
English
MP
TAZZ
EV2
EV3
EVC
EV4
EV1
TLR
EVT
BI
RO
RO
BL
VE
VE
VE
VE
VE
VE
MA
CN19
CN14
RL5-2
F1
SCH-2
RL1
RL2
RL3
RL4
RL5
RL6
RL8
RL9
GND
RXD
TXD
5Vcc
CN17
CN18
SCH-2
CN4
JP7
JP15
JP18
JP2
JP9
JP17
JP1
JP8
JP16
CN3
CN10
CN11
CN12
CN13
08/04/05
JP6
JP4
JP10
JP12
JP14
IC1
JP5
JP3
CN4
CN5
TRF1
F2
CN1
CN2
NE
BL
NE
MA
MA
MA
MA
SL
CAL
CV4
O
-
CV3
O
-
CV2
O
-
CV1
O
-
GV
R
espresso coffee machine - electrical diagrams
6.13.1 Electrical diagram code WY18090037-38-47-48 *POLARIS-VENUS* PLUS 1-2 rev.1
Power supply connector
Low voltage power supply
Display connector
Serial transmission connector
Microprocessor connector
Push button panel connector GR1
Push button panel connector GR2
Push button panel connector GR3
Push button panel connector GR4
Service outputs connector
Connector boiler NTC
Connector Cup heater NTC
Connector Cup heater heating el.
Power supply connector
Boiler
Microprocessor
Pump
Remote switch
Transformer
Cup heater
White
Blue
Yellow-green
Brown
Black
Red
Green
CN1
CN2
CN3
CN4
CN5
CN10
CN11
CN12
CN13
CN14
CN17
CN18
CN19
CT
CAL
IC1
MP
TLR
TRF1
TAZZ
BI
BL
GV
MA
NE
RO
VE
Ouputs fuse (6,3A)
Inputs fuse (500mA)
F1
F2
Solenoid valve relay Pump
Solenoid valve relay GR2
Solenoid valve relay GR3
Solenoid valve relay Boiler
Solenoid valve relay GR4
Solenoid valve relay GR1
Boiler heating element relay
Solenoid valve relay Tea
Solenoid valve relay cup heater
Solenoid valve GR1
Solenoid valve GR2
Solenoid valve GR3
Solenoid valve GR4
Filling solenoid valve Boiler
Tea solenoid valve
EV1
EV2
EV3
EV4
EVC
EVT
RL1
RL2
RL3
RL4
RL5
RL6
RL8
RL9
RL5-2
Volumetric counter GR1
Volumetric counter GR2
Volumetric counter GR3
Volumetric counter GR4
CV1
CV2
CV3
CV4
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
JP9
JP10
JP12
JP14
JP15
JP16
JP17
JP18
Disabled
4-key dosing
Disabled
Enabled
Enabled
6-key dosing
Without pump
Enabled
Without pump
With pump
Disabled
With pump
Enabled
Enabled
NOT
INSERTED
Disabled
Disabled
JP12
JP14
CREDIT-DEBT
JP12
JP14
INTERFACE I/O
Configuration JP12- JP14
JP15(*) For version whitout DISPLAY: not managed
Serial transmission
Pre-infusion
Programming
Boiler filling
Tea delivery
Tea
STOP key continuation
Not managed
Credit-Debt
Not managed
Not managed
Not managed
Display function keys (*)
Device
Not managed
Not managed
INSERTED
espresso coffee machine - electrical diagrams
R
English
ELE 21
ELE 22
English
CT
MP
TAZZ
EV2
EV3
EVC
EV4
EV1
TLR
EVT
BI
RO
RO
BL
VE
VE
VE
VE
VE
VE
MA
ARIA
VAP2
VAP1
PLAT
CN19
CN14
CN20
RL4-2
RL5-2
F1
RL1-2
RL2-2
RL3-2
SCH-2
RL1
RL2
RL3
RL4
RL6
RL8
RL9
CN4
CN10
GND
RXD
TXD
5Vcc
CN11
CN16
CN15
CN13
CN12
CN3
08/04/05
JP6
JP4
CN17
CN18
SCH-2
JP7
JP15
JP18
JP2
JP9
JP17
JP1
JP8
JP16
JP10
JP12
JP14
IC1
JP5
JP3
CN4
CN5
TRF1
F2
CN1
CN2
NE
BL
NE
MA
MA
MA
MA
SL
CAL
CV4
O
-
CV3
O
-
CV2
O
-
CV1
O
-
GV
R
espresso coffee machine - electrical diagrams
6.14 Electrical diagram code WY18090051-52 *POLARIS* PLUS 3 rev.0
Power supply connector
Low voltage power supply
Display connector
Serial transmission connector
Microprocessor connector
Push button panel connector GR1
Push button panel connector GR2
Push button panel connector GR3
Push button panel connector GR4
Service outputs connector
Connector pressure switch
Connector autosteamer NTC
Connector boiler NTC
Connector Cup heater NTC
Connector Cup heater heating el.
Connector cappuccino maker
Power supply connector
Boiler
Microprocessor
Pump
Remote switch
Transformer
White
Blue
Yellow-green
Brown
Black
Red
Green
CN1
CN2
CN3
CN4
CN5
CN10
CN11
CN12
CN13
CN14
CN15
CN16
CN17
CN18
CN19
CN20
CT
CAL
IC1
MP
TLR
TRF1
BI
BL
GV
MA
NE
RO
VE
Solenoid valve GR1
Solenoid valve GR2
Solenoid valve GR3
Solenoid valve GR4
Filling solenoid valve Boiler
Tea solenoid valve
Solenoid valve air
EV1
EV2
EV3
EV4
EVC
EVT
ARIA
RL9
RL1-2
RL2-2
RL3-2
RL4-2
RL5-2
RL1
RL2
RL3
RL4
RL5
RL6
RL8
Solenoid valve relay Tea
Solenoid valve cappuccino maker
Solenoid valve relay autosteamer
Solenoid valve relay air
Solenoid valve relay milk pump
Solenoid valve relay cup heater
Solenoid valve relay Pump
Solenoid valve relay GR2
Solenoid valve relay GR3
Solenoid valve relay Boiler
Solenoid valve relay GR4
Solenoid valve relay GR1
Boiler heating element relay
PLAT Solenoid valve cold milk
TAZZ Cup heater
VAP1 Solenoid valve steam hot milk
VAP2 Solenoid valve autosteamer
F1
Ouputs fuse (6,3A)
F2
Inputs fuse (500mA)
Volumetric counter GR2
Volumetric counter GR3
Volumetric counter GR4
Volumetric counter GR1
CV2
CV3
CV4
CV1
CREDIT-DEBT
JP12
JP14
INTERFACE I/O
English
JP17 closed + JP 18 open
NOT
INSERTED
Disabled
Display
4-key dosing
Without pump
Enabled
Disabled
Disabled
Without pump
Whit electronic system
Whit cappuccino maker
Checking temperature boiler / pressure
JP12
JP14
Key gr.1
6-key dosing
With pump
Disabled
Enabled
Enabled
With pump
Enabled
Configuration JP12- JP14
Pump cold milk
Credit-Debt
Not managed
Not managed
Not managed
Display function keys
Device
Not managed
Not managed
Serial transmission
Not managed
Programming
Boiler filling
Tea delivery
Tea
STOP key continuation
JP17 closed + JP 18 closed
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
JP9
JP10
JP12
JP14
JP15
JP16
JP17
JP18
INSERTED
espresso coffee machine - electrical diagrams
R
ELE 23
ELE 24
English
JP1
JP2
JP3
JP4
JP6
JP7
JP8
GV
+
-
+
CV3
O
-
+
CV4
O
-
CAL
SL
STOP key enabled
Interface I/O
CV2
O
STOP key disabled
Control d
+
JUMPER NOT INSERTED
Count disabled
Pre-infusion disabled
Programming disabled
Boiler filling without pump
Tea filling without pump
-
RO
JUMPER INSERTED
Count enabled
Pre-infusion enabled
Programming enabled
Boiler filling with pump
Tea filling with pump
CV1
O
CT
BI
MA
MA
MA
MA
NE
BL
NE
BI
BL
GV
MA
NE
RO
VE
P10
P11
White
Blue
Yellow-green
Brown
Black
Red
Green
F2
JP8
JP7
JP3
PLT
GND
RXD
TXD
VAL
JP1
JP4
JP6
CAL Boiler
CT
Power supply connector
CV1 Volumetric counter GR1
CV2 Volumetric counter GR2
CV3 Volumetric counter GR3
CV4 Volumetric counter GR4
EV1 Solenoid valve GR1
EV2 Solenoid valve GR2
EV3 Solenoid valve GR3
EV4 Solenoid valve GR4
EVC Boiler filling solenoid valve
EVT Tea solenoid valve
F2 Inlets fuse (500mA)
F4 Motor pump fuse (6.3A)
JP5
JP2
P4
P3
P2
P6
P7
P1
P5
P9
F4
JP5
MP
PLT
P1
P2
P3
P4
P5
P6
P7
P9
P10
P11
SL
EVT
EV1
EV4
EVC
EV3
EV2
Connection tea dose
Pump
Tea dose
Push button connector GR1
Push button connector GR2
Push button connector GR3
Push button connector GR4
Tea dose
Not managed
Serial transmission connector
Service outputs connector
Low voltage power supply
Power supply connector
Level probe
VE
RO
BL
VE
VE
VE
VE
VE
MP
R
espresso coffee machine - electrical diagrams
6.22 Electrical diagram code WY18090012-13-14-15 *SPHERA*
BA
CAL
CM
CN1
CN2
CN3
CN4
CN5
CT
IP
MC
RE
SCB
SCD
SL
TG
Battery
Boiler
Membrane connector
Serial transmission connector
Not managed
Level probe connector
Programming swith connector
Circuit board display connector
Power connector
Switch programming
Machine
Relay
Circuit board
Display circuit board
Level probe
Contactor
MC
SCD
SCB
FIG. A
FIG. A
FIG. B
TG
Connection Circuit board - Circuit board display
Jumpers
C
FA1
FA2
FA4
FA5
CN1
CN2
FA2
FA1
CN4 CN3
CT
RE
FIG. B
BA
P1
P2
IP
CAL
SL
espresso coffee machine - electrical diagrams
R
6.24 Electrical diagram code WY18090018 - WY18090019 *SPHERA DISPLAY*
English
ELE 25
ENGLISH
ESPRESSO COFFEE MACHINE
USE AND MAINTENANCE MANUAL
Instructions for the user
INTERFACE SYSTEM
R
Via Santi, 9 - 40011 ANZOLA EMILIA (BO) - ITALY
Tel. +39.051.6500900 - Fax +39.051.733701
www.wega.it - commerciale@wega.it
Summary
1. STANDARD interface system.................................................................................................................. 4
1.1 MACHINE - INTERFACE connection ........................................................................................................................... 4
1.2 NOVA type machine system ......................................................................................................................................5
1.3 SPHERA type machine system .................................................................................................................................5
1.4 NOVA type machine electrical diagram version *GICAR* ........................................................................................ 6
1.5 NOVA type machine electrical diagram version *GIEMME* ..................................................................................... 7
1.6 SPHERA type machine electrical diagram version *GICAR* ..................................................................................... 8
1.7 SPHERA type machine electrical diagram version *GIEMME* ................................................................................. 9
2. VENUS interface system ...................................................................................................................... 10
2.1 MACHINE - INTERFACE connection ......................................................................................................................... 10
2.2 Venus 2003 type machine system .........................................................................................................................11
2.3 Venus 2004 PLUS 1-2 type machine system ........................................................................................................11
2.4 Venus 2003 type machine electrical diagram version *GICAR* ............................................................................12
2.5 Venus 2003 type machine electrical diagram version *GIEMME* .........................................................................13
2.6 Venus 2004 - PLUS 1-2 type machine electrical diagram (OLD version) ..........................................................14
2.7 Venus 2005 - PLUS 1-2 type machine electrical diagram (NEW version) .........................................................15
R
espresso coffee machine - interface system
1.
STANDARD interface system
1.1 MACHINE - INTERFACE connection
K
K
Note
The switch must face downwards
To enable the interface, short circuit pins 33/34 of CN1
PIN
RELAY
GROUP
DOSE KEY
PIN
RELAY
GROUP
DOSE KEY
1
Z11
1
1
18
Z36
4
6
2
Z12
1
2
19
Z41
4
1
3
Z13
1
3
20
Z42
4
2
4
Z14
1
4
21
Z43
4
3
5
Z15
1
5
22
Z44
4
4
6
Z16
1
6
23
Z45
4
5
7
Z21
2
1
24
Z46
4
6
8
Z22
2
2
25
ZT1
9
Z23
2
3
26
ZT2
10
Z24
2
4
27
11
Z25
2
5
28
12
Z26
2
6
29
HTW common signals
13
Z31
3
1
30
HTW common signals
14
Z32
3
2
31
15
Z33
3
3
32
16
Z34
3
4
33
ABHART*
17
Z35
4
5
34
GND*
CNS 4
English
TEA
R
espresso coffee machine - interface system
1.2 NOVA type machine system
Components to be used in the INTERFACE - COFFEE MACHINE connection:
• Code WY26001 26-relay interface
• Code WY22550 Hartwall cable
• Code WY22551 Power cable
• Code WY22552 8-pole serial transmission cable
1.3 SPHERA type machine system
Components to be used in the INTERFACE - COFFEE MACHINE connection:
• Code WY26011 26-relay interface
• Code WY22550 Hartwall cable
• Code WY22551 Power cable
• Code WY22555 4-pole serial transmission cable
Also, replace the microprocessor according to the following rule:
• if the GICAR control unit uses code 4GR8T 13/10/01
• If the GIEMME control unit uses code D4DEG-R 12/03/03 as shown in the drawings
English
CNS 5
R
espresso coffee machine - interface system
1.4
NOVA type machine electrical diagram version *GICAR*
I
A
R
B
V
R
N
C
G
E
D
R (VCC+)
N (GND)
VBR
CNS 6
English
REF.
DESCRIPTION
A
B
C
D
E
F
G
I
N
R
V
Hartwall cable 8.9.28.51 code WY22550
White
Power cable 8.9.28.12 code WY22551
Dosing
Serial transmission cable 8.9.28.13 code WY22552
Remove the jumper before connecting the serial cable
Place the lever in the PROG position only when programming coffee doses
Interface
Black
Red
Green
F
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espresso coffee machine - interface system
1.5 NOVA type machine electrical diagram version *GIEMME*
I
A
R
B
V
R
N
C
G
D
E
R (VCC+)
N (GND)
F
VBR
REF.
A
B
C
D
E
F
G
I
N
R
V
DESCRIPTION
Hartwall cable 8.9.28.51 code WY22550
White
Power cable 8.9.28.12 code WY22551
Serial transmission cable 8.9.28.13 code WY22552
Dosing
Short circuit JP1
Never place the lever in the PROG position
Interface
Black
Red
Green
English
CNS 7
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espresso coffee machine - interface system
1.6 SPHERA type machine electrical diagram version *GICAR*
I
A
R
B
V
R
N
C
H
E
D
F
R (VCC+)
N (GND)
G
VBR
CNS 8
English
REF.
DESCRIPTION
A
B
C
D
E
F
G
H
I
N
R
Hartwall cable 8.9.28.51 code WY22550
White
Power cable 8.9.28.12 code WY22551
Serial transmission cable code WY22555
Replace with correct version
Dosing
Short circuit JP1
Place the lever in the PROG position only when programming coffee doses
Interface
Black
Red
V
Green
R
espresso coffee machine - interface system
1.7 SPHERA type machine electrical diagram version *GIEMME*
I
34
33
R
B
V
34 33
R
N
2 1
A
C
H
D
F
E
R (VCC+)
N (GND)
VBR
REF.
DESCRIPTION
A
B
C
D
E
F
G
H
I
N
R
Hartwall cable 8.9.28.51 code WY22550
White
Power cable 8.9.28.12 code WY22551
Serial transmission cable code WY22555
Replace with correct version
Dosing
Do not short circuit JP1
Never place the lever in the PROG position
Interface
Black
Red
V
Green
English
CNS 9
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espresso coffee machine - interface system
2.
VENUS interface system
2.1 MACHINE - INTERFACE connection
K
K
Note
The switch must face downwards
To enable the interface, short circuit pins 33/34 of CN1
PIN
RELAY
GROUP
DOSE KEY
PIN
RELAY
GROUP
DOSE KEY
1
Z11
1
1
18
Z36
4
6
2
Z12
1
2
19
Z41
4
1
3
Z13
1
3
20
Z42
4
2
4
Z14
1
4
21
Z43
4
3
5
Z15
1
5
22
Z44
4
4
6
Z16
1
6
23
Z45
4
5
7
Z21
2
1
24
Z46
4
6
8
Z22
2
2
25
ZT1
9
Z23
2
3
26
ZT2
10
Z24
2
4
27
11
Z25
2
5
28
12
Z26
2
6
29
HTW common signals
30
HTW common signals
TEA
13
Z31
3
1
14
Z32
3
2
31
15
Z33
3
3
32
16
Z34
3
4
33
ABHART*
17
Z35
4
5
34
GND*
CNS 10
English
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espresso coffee machine - interface system
2.2 Venus 2003 type machine system
Components to be used in the INTERFACE - COFFEE MACHINE connection:
• Code WY26011 26-relay interface
• Code WY22550 Hartwall cable
• Code WY22551 Power cable
• Code WY22555 4-pole serial transmission cable
WARNING
• This type of control unit has been replaced with the “PLUS 1-2” version, see Venus 2004
• If the microprocessor carries a date prior to 23 June 2004,
replace it with one dated after 23 June 2004:
- WY18090038 with display
- WY18090048 without display
2.3
Venus 2004 PLUS 1-2 type machine system
Components to be used in the INTERFACE - COFFEE MACHINE connection:
• Code WY26011 26-relay interface
• Code WY22550 Hartwall cable
• Code WY22551 Power cable
• Code WY22555 4-pole serial transmission cable
English
CNS 11
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espresso coffee machine - interface system
2.4 Venus 2003 type machine electrical diagram version *GICAR*
I
A
R
B
V
R
N
C
H
E
D
F
R (VCC+)
N (GND)
G
VBR
CNS 12
English
REF.
DESCRIPTION
A
B
C
D
E
F
G
H
I
N
R
Hartwall cable 8.9.28.51 code WY22550
White
Power cable 8.9.28.12 code WY22551
Serial transmission cable code WY22555
Replace with correct version
Dosing
Short circuit JP1
Place the lever in the PROG position only when programming coffee doses
Interface
Black
Red
V
Green
R
espresso coffee machine - interface system
2.5 Venus 2003 type machine electrical diagram version *GIEMME*
I
34
33
R
B
V
34 33
R
N
2 1
A
C
H
D
F
E
R (VCC+)
N (GND)
VBR
REF.
DESCRIPTION
A
B
C
D
E
F
H
I
N
R
Hartwall cable 8.9.28.51 code WY22550
White
Power cable 8.9.28.12 code WY22551
Serial transmission cable code WY22555
Replace with correct version
Dosing
Never place the lever in the PROG position
Interface
Black
Red
V
Green
33 - 34
Enabling
English
CNS 13
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espresso coffee machine - interface system
2.6
Venus 2004 - PLUS 1-2 type machine electrical diagram (OLD version)
I
34
33
R
B
V
34 33
R
N
2
1
A
C
H
G
D
RL9
JP16
JP4
JP8
JP6
RL8
CN2
CN5
JP1
JP17
JP9
RL7
JP2
29.06.04
JP18
F
F2
JP15
RL6
JP7
CN14
RL5
R (VCC+)
CN6
JP14
N (GND)
CN3
RL4
JP12
RL2
F1
RL1
CN13
CN12
CN8
CN4
CN11
CN7
JP3
JP10
RL3
JP5
CN10
TRF2
RBV
REF.
A
B
C
D
F
G
H
I
N
R
CNS 14
English
V
33 - 34
DESCRIPTION
Hartwall cable 8.9.28.51 code WY22550
White
Power cable 8.9.28.12 code WY22551
Serial transmission cable code WY22555
Dosing
Short circuit JP1
Never place the lever in the PROG position
Interface
Black
Red
Green
Enabling
CN1
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espresso coffee machine - interface system
2.7
Venus 2005 - PLUS 1-2 type machine electrical diagram (NEW version)
I
34
33
R
B
V
34 33
R
N
2
1
A
C
H
G
D
JP1
IC1
08/04/05
R (Vcc+)
F
CN2
N (GND)
JP14
CN4
JP12
JP14
JP12
+5Vcc V B R
REF.
A
B
C
D
F
G
H
I
N
R
V
33 - 34
DESCRIPTION
Hartwall cable 8.9.28.51 code WY22550
White
Power cable 8.9.28.12 code WY22551
Serial transmission cable code WY22555
Dosing
Short circuit JP1
Never place the lever in the PROG position
Interface
Black
Red
Green
Enabling
English
CNS 15
ENGLISH
ESPRESSO COFFEE MACHINE
USE AND MAINTENANCE MANUAL
Instructions for the user
SERVINGS COUNT
R
Via Santi, 9 - 40011 ANZOLA EMILIA (BO) - ITALY
Tel. +39.051.6500900 - Fax +39.051.733701
www.wega.it - commerciale@wega.it
Summary
1. INTRODUCTION ...........................................................................................................................................................4
2. USER INTERFACE .......................................................................................................................................................4
3. INPUTS/OUTPUTS .......................................................................................................................................................5
4. SYSTEM SET-UP: MOBILE JUMPERS .......................................................................................................................... 5
5. STARTING THE MACHINE ..............................................................................................................................................6
6. READING AND DELETION FUNCTIONS .......................................................................................................................... 6
7. SERVING READING (STROKE COUNT) .......................................................................................................................... 6
8. SERVING DELETION (STROKE COUNT) ........................................................................................................................ 8
9. SERIAL CONNECTION ...................................................................................................................................................9
10. PROCEDURE IN CASE OF POWER FAILURE .............................................................................................................10
11. TECHNICAL DATA...................................................................................................................................................... 10
12. INSTRUCTIONS FOR INSTALLATION AND LIMITATIONS OF USE ..............................................................................10
13. WARNINGS................................................................................................................................................................11
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espresso coffee machine - servings count
1. INTRODUCTION
This is a device which makes it possible to handle simplified accounting of coffee with a coded key. The apparatus consists of a single electronic card on which are mounted the power supply unit, the microprocessor and related peripherals, the display and the components for the
management of inputs and outputs. A membrane keypad with 4 built-in keys makes it possible to use the various resources. The information
is shown on a 5-digit display. A TH type cover is included to contain the apparatus. The system is automatically power-supplied (230Vca ,
115Vca 50/60Hz). The serial interface is compatible with the
and
doses and along with the normal microprocessor
doses enabled for the serial transmission interface. A non-volatile memory in the card is able to store the required data, even in the event of
a power outage.
2.
USER INTERFACE
KEYS
•
•
•
•
•
KONOFF
KMODE
KENTER
KPIU
KMENO
Key not used
Option selection key
Confirm key
Value increase key
Value decrease key
DISPLAY
DS1, DS2, DS3, DS4, DS5
5 display 7 red segments
Example of silk-screen printed membrane:
KONOFF
KMODE
KPIU
DS1 .... DS5
KMENO
KENTER
The symbols, the colours used, and the position of the parts may vary depending on the model.
CNS 4
English
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espresso coffee machine - servings count
3. INPUTS/OUTPUTS
ANALOGUE INPUTS
• TEMP
Input not available
DIGITAL INPUTS
•
•
•
•
•
CVOL
KEY1
KEY2
KEY3
KEY4
Input not available
Key input not available
Key input not available
Key input not available
Key input not available
SERIAL LINE (RS232)
• TxD / RxD
Signals for serial transmission
MAINS VOLTAGE OUTPUTS
• RISC
Output not available
POWER SUPPLY
• The card is powered with the nominal mains voltage by means of the appropriate fast-ons
CONNECTIONS
•
•
•
•
•
Power supply
FAST-ON (bi-polar plug for countertop version)
Analogue inputs Included for AMPMODU2
Digital inputs
AMPMODU2
High voltage outputs Included for FAST-ON
Serial connection AMPMODU2 (circular connection for countertop version)
4. SYSTEM SET-UP: MOBILE JUMPERS
ANALOGUE INPUTS
• P1
• P2
Available
Available
The system configuration jumpers must be set up before the unit is started up.
If the configuration is subsequently modified, the insertion or removal of a jumper must be carried out when the card is not powered. The next
start-up will allow the new function to become operational.
English
CNS 5
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espresso coffee machine - servings count
5. STARTING THE MACHINE
When power is supplied to the device, it comes on and the display shows the message “On”.
In this manner the following functions are enabled:
• Reading of servings performed
• Deletion of servings performed
NOTE
• it is not possible to shut off the device; the KONOFF key, even if connected, is bypassed.
• when power is supplied to the card, for approximately 2 seconds the version of the installed program is shown. E.g.: “V.1.00”.
6. READING AND DELETION FUNCTIONS
The reading and deletion functions are permitted only with the activation key inserted.
To choose the operation to be performed, the KMODE key is used.
By pressing it several times, the available functions are selected one at a time, in the following order:
• Reading of servings performed
• Deletion of servings performed
During any data reading or deletion operation, it is not possible to perform dispensing.
“Insertion of the programming key” is understood to mean closure of the relative contact.
7. SERVING READING (STROKE COUNT)
The number of SERVINGS provided by each single key of each group of connected dosing can be
viewed by means of the following procedure:
• Insert the activation key.
• Press the KMODE key, and the display will show the message “Count”.
• Then, within 30 seconds, press the KENTER key.
The first item of data is shown, which consists of the number of SERVINGS made on the first key of the
first group.
CNS 6
English
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espresso coffee machine - servings count
The first item of data is shown, which consists of the number of SERVINGS made on the first key of the
first group. Or the display shows:
(Group 1, button 1)
and the number of SERVINGS performed. Example:
•
Using the keys KPIU and KMENO it is possible to read the servings provided by the other keys of all of the groups.
First all the keys of a group are displayed in order, then you move on to the next group.
During scanning, those keys which were not used to provide any servings are skipped.
By pressing KPIU when reading is in the last position available or by pressing KMENO when reading is
in the first position available, the display shows the message “End”.
The highest number of servings which can be counted for each key is 65535.
After that number, counting resets to zero.
Each dose is counted at its start, including any doses which may have been carried out during dose programming.
•
To end the servings reading phase, press the key KMODE.
The display will go back to showing the message “Count”:
• To go back to the normal indication, press KMODE repeatedly:
If no key is pressed during reading for 30 seconds, reading is aborted and the machine
reverts to the previous status.
English
CNS 7
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espresso coffee machine - servings count
8. SERVING DELETION (STROKE COUNT)
The number of SERVINGS provided by each single key of each group of connected dosing can be
deleted in a single operation through the following procedure.
•
•
Insert the activation key.
Press the KMODE key twice, and the display will show the message “ErASE”:
•
Then, within 30 seconds, press the KENTER key.
The display will show question marks to ask for confirmation of the action to be performed.
•
To confirm data deletion, press KENTER again
The display will show:
•
To terminate the deletion of counted servings phase (even if deletion has not
been performed) press the key KMODE.
The display will go back to showing
the message “ErASE”:
•
To go back to the normal indication, press KMODE.
If no key is pressed during deletion for 30 seconds, reading is aborted and the machine
reverts to the previous status.
CNS 8
English
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espresso coffee machine - servings count
9. SERIAL CONNECTION
The system is able to interface in serial mode with the coffee machine.
Refer to the technical specifications for dosing for their correct configuration.
Connection is made by means of an RS232 serial line, with the appropriate cable.
Serial transmission characteristics:
• BAUD RATE
1200 bit/sec
• DATA LENGTH
8 bit
• PARITY
EVEN
• STOP BIT
2
• CLOCK RATE
64
• VOLTAGE LEVELS
0/+5 Vdc
Operation
A code corresponds to each dosing key. When a serving is requested from a certain key, the dosing device sends the relative code by means
of its serial line. If it receives in reply the same code or a code from 1 to 15 (decimal) the serving is delivered, otherwise it is deleted. The
codes are typical of the traditional interface with the Gicar Stroke Count, which transmits a code that makes it possible to recognize the
staff that is using the machine (1...13 : waiters, 14 : manager, 15 : owner).
List of codes used by dosing:
• 11H
Group 1
• 12H
Group 1
• 13H
Group 1
• 14H
Group 1
• 15H
Group 1
• 16H
Group 1
• 17H
Group 1
• 19H
Group 1
• 21H
Group 2
• 22H
Group 2
• 23H
Group 2
• 24H
Group 2
• 25H
Group 2
• 26H
Group 2
• 27H
Group 2
• 29H
Group 2
• 31H
Group 3
• 32H
Group 3
• 33H
Group 3
• 34H
Group 3
• 35H
Group 3
• 36H
Group 3
• 37H
Group 3
• 39H
Group 3
• 41H
Group 4
• 42H
Group 4
• 43H
Group 4
• 44H
Group 4
• 45H
Group 4
• 46H
Group 4
• 47H
Group 4
• 49H
Group 4
Key 1
Key 2
Key 3
Key 4
Key Tea 1
Key Tea 2
Stop/Cont/Prog Key (Dosmask series)
Stop/Cont/Prog Key (Dosmask series)
Key 1
Key 2
Key 3
Key 4
Key available
Key available
Stop/Cont/Prog Key (Dosmask series)
Stop/Cont/Prog Key (Dosmask series)
Key 1
Key 2
Key 3
Key 4
Key available
Key available
Stop/Cont/Prog Key (Dosmask series)
Stop/Cont/Prog Key (Dosmask series)
Key 1
Key 2
Key 3
Key 4
Key available
Key available
Stop/Cont/Prog Key (Dosmask series)
Stop/Cont/Prog Key (Dosmask series)
The system replies code 15 (decimal), thus enabling delivery of the serving (even if the activation key is inserted).
During any data reading or deletion operation, the system does not reply or replies with a code which is not recognized by the dosing. In this
case, delivery is not performed and the serving is not counted.
English
CNS 9
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espresso coffee machine - servings count
10. PROCEDURE IN CASE OF POWER FAILURE
If there is a power outage, the system will store all data concerning the count of servings delivered.
Since the update of the count takes place at the start of the delivery of the serving, if it is aborted due to a power outage, it is still counted
and recognized by the dosing device. In this case, delivery is not performed and the serving is not counted.
11. TECHNICAL DATA
GENERAL DATA
•
•
•
•
•
•
Power supply voltage
Operating temperature
Operating humidity
Transformer
Input - keys
Signals for serial transmission
200-230Vac or 100-115Vac
10-55°C
30-85 % RH without condensation
2 VA - clim.categ. T70/E - 4 KVca
Switch / Pure contact
RS232 0-5V
CONNECTIONS for “PANEL” model
•
•
•
•
•
Power supply
Analogue inputs
Digital inputs
High voltage outputs
Serial connection
FAST - ON
Included for AMPMODU2
AMPMODU2
Included for FAST-ON
AMPMODU2
CONNECTIONS for “COUNTERTOP” model
• Power supply
• Digital inputs
• Serial connection
Bi-polar plug
Cable with activation keys inside the case
5-way circular connection
12. INSTRUCTIONS FOR INSTALLATION AND LIMITATIONS OF USE
WIRING
Wiring of the cards must be laid out in consideration of the need to separate low voltage from high voltage connections.
The length of any cable must be as short as possible to allow correct connection.
If necessary, screened cables must be used.
The unit must also be located far from devices which may create electromagnetic disturbances when in operation, such as pumps, solenoid
valves, remote switches, motors in general, and neon lights.
SURROUNDINGS
The unit must be placed as far as possible from potential heat sources and excessive humidity and from places where, for any reason, condensation may form.
SOILING
Inside the machine, the card must be suitably protected against soiling.
By definition, “in general, the inside of a unit having a case which sufficiently protects it from dust is considered to be protected against soiling”
(EN 60335-1).
CNS 10
English
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espresso coffee machine - servings count
MESH FILTER
In order to meet the standards of directives concerning electromagnetic compatibility, it may be necessary to provide the machine with a mesh
filter outside the card.
In this case, its installation requires compliance with a few basic rules:
• the filter (if of a type with a metallic body) must be installed on the metal frame of the unit, with an electrical path of low impedance
towards earth.
• It must be installed as near as possible to the entry point of the of the power cable, with short input and output connections that are set
well apart from each other, to avoid disturbances between the mains, loads and the unit.
If the filter is not installed in compliance these instructions, it may lose all or part of its effectiveness.
PERFORMANCE
Best performance of the card is obtained at an ambient temperature of roughly 25°C.
For higher or lower temperatures, precision and heat dissipation results tend to worsen.
However, the temperature range as defined in the electrical characteristics is adhered to.
To avoid permanent damage to some components, remain within the range 0...70°C.
13. WARNINGS
DANGER
The unit contains parts with a high voltage power supply.
Before performing any work, disconnect the unit from the electrical mains.
START-UP
Before providing power to the unit, make all required connections.
PROTECTION
Ensure that all accessible metal parts which may receive live current due to an insulation defect are permanently and securely attached to the
earth terminal of the machine.
Ensure that the earth terminal of the machine is connected to an efficient earth protection
EXTERNAL COMPONENTS
The insertion of components outside the card which are required to ensure suitable reduction of disturbances must not compromise the safety
of the unit. This means that they must be of a suitable type and value.
COMPONENTS
If necessary, we reserve the right to replace the components used with other devices produced by other manufacturers but
with the same electrical and regulatory characteristics.
SOFTWARE
If necessary, we reserve the right to make partial corrections to the described procedures during the software development stage, to allow easier
or more effective use of the machine or a more coherent development of software, without modifying the functional aspects of the machine.
SAFETY
Protection against electrical shock, fire hazard, mechanical risks or hazardous malfunctions in other parts of the machine does not depend on
correct operation of the electronic circuit.
Therefore, where necessary, the machine must be equipped with safety devices which are independent of the electronic circuit (e.g. pressure
overload safety valve).
English
CNS 11
ENGLISH
ESPRESSO COFFEE MACHINE
USE AND MAINTENANCE MANUAL
Instructions for the user
MACHINE DIAGRAMS
R
Via Santi, 9 - 40011 ANZOLA EMILIA (BO) - ITALY
Tel. +39.051.6500900 - Fax +39.051.733701
www.wega.it - commerciale@wega.it
Summary
1 VENUS machine ....................................................................................................................................... 4
1.1 REPLACEMENT of the HEATING ELEMENT or of the HEATING ELEMENT PROTECTION............................................4
1.2 REPLACEMENT of the HOT WATER SOLENOID VALVE .............................................................................................4
1.3 WORKING on the CONTROL UNIT, PRESSURE SWITCH, DOSING DEVICES, OR CUP HEATER THERMOSTAT ...............5
1.4 WORKING on the DELIVERY GROUP or ITS COMPONENTS ......................................................................................6
1.5 REPLACEMENT of the HEATING ELEMENT of the CUP HEATER ..............................................................................8
1.6 WORKING on the UPPER PART OF THE BOILER ......................................................................................................9
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espresso coffee machine - machine diagrams
1 VENUS machine
1.1 REPLACEMENT of the HEATING ELEMENT or of the HEATING ELEMENT PROTECTION
1) Completely loosen the screw (A) located on the left-hand side of the body (B)
2) Remove the left hand side of the body (B) following the profile of the steam nozzle
3) After working on the heating element or heating element protection, put the body panel (B) back in place and tighten the screw (A)
A
B
B
1.2 REPLACEMENT of the HOT WATER SOLENOID VALVE
1) Completely loosen the screw (A) located on the right-hand side of the body (B)
2) Remove the right-hand side of the body (B) following the profile of the steam nozzle
3) After working on the solenoid valve, put the body panel (B) back in place and tighten the screw (A)
A
B
B
SMC 4
English
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espresso coffee machine - machine diagrams
1.3 WORKING on the CONTROL UNIT, PRESSURE SWITCH, DOSING DEVICES, or CUP HEATER THERMOSTAT
1)
2)
3)
4)
5)
Remove the lower grilles and the drain tub (A)
Loosen the screws (B) and remove the protection (C)
Loosen the screws (D) located on the base of the support covers of the boiler
Loosen the screws (E) and remove the rear cover of the base (F) by sliding it outwards
After work is complete, put the body components back in place by following the procedure in reverse order
B
B
A
C
F
D
E
D
English
SMC 5
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espresso coffee machine - machine diagrams
1.4 WORKING on the DELIVERY GROUP or ITS COMPONENTS
1)
2)
3)
4)
5)
6)
7)
8)
Use a 3 mm hex wrench to loosen the fastening screws (A) and remove the stainless steel plaque (B) located under the attachment ring of the delivery group
Remove the protection cap of the delivery group (C)
Loosen the screws (D) housed inside the holes
Remove the lower grilles and the drain tub (E)
Loosen the screws and remove the protection (F)
Loosen the screws (G) located on the base of the support covers of the boiler
Remove the front part of the support cover of the boiler by pulling it toward you (H)
After work is complete, put the body components back in place by following the procedure in reverse order
A
B
SMC 6
English
C
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espresso coffee machine - machine diagrams
D
E
F
H
G
G
English
SMC 7
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espresso coffee machine - machine diagrams
1.5 REPLACEMENT of the HEATING ELEMENT of the CUP HEATER
1) Loosen the fastening screws located on the cup holder grille (A)
2) Remove the cup holder grilles (B)
3) To remove the heating element it is first necessary to disconnect the electrical connectors (C) for the heating element and temperature probe which are
located in the cup heater compartment
4) After working on the heating element, put the grilles (B) back in place and tighten the screws (A)
C
A
B
B
A
WARNING
C
Any work on the machine must be performed with the machine disconnected from the electrical and hydraulic mains and
with the boiler cold.
SMC 8
English
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espresso coffee machine - machine diagrams
1.6 WORKING on the UPPER PART OF THE BOILER
(safety valve, expansion valve, etc.)
1)
2)
3)
4)
5)
6)
7)
Loosen the fastening screws located on the cup holder grille (A)
Remove the cup holder grilles (B)
Disconnect the electrical connectors (C) for the heating element and temperature probe which are located in the cup heater compartment
Loosen and remove the fastening screws of the cup holder (D)
Loosen the fastening screws of the boiler rear body (E)
Remove the rear body panels of the boiler (F)
After work is complete, put the body components back in place by following the procedure in reverse order
A
B
B
A
D
D
C
E
E
F
C
F
English
SMC 9
WEGA s.r.l.
Via Santi, 9 - 40011 ANZOLA EMILIA (BO) - ITALY
Tel. +39.051.6500900 - Fax +39.051.733701
www.wega.it - commerciale@wega.it
Cod. WY02000353 - Rev. 03 - 05/2005