DLS ELETTA CAPPUCCINO EVO User manual

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Data Sheet and Service Manual
ECAM 46.860 –ELETTA CAPPUCCINO EVO
Date: 08.09.2020
ENGLISH
TABLE OF CONTENTS:
1. TECHNICAL DATA ................................................................................................................................... 2
2. MAIN DIFFERENCES COMPARED TO ECAM45.760....................................................................... 2
3. HYDRAULIC DIAGRAM........................................................................................................................... 3
4. WIRING DIAGRAM.................................................................................................................................... 4
5. WORKING PRINCIPLE............................................................................................................................. 6
6. SELECT TEST MODE ............................................................................................................................ 10
7. APPLIANCE DIAGNOSTICS................................................................................................................. 14

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1. TECHNICAL DATA
Voltage 220-240V / 50-60 Hz
MAX. Input power 1450 W
COMPONENTS
Pump ULKA EP5GW 230Vac - 48W –Bar 15
Grinder motor 230Vac
Transmission motor 230Vdc with position encoder
Solenoid valves EV1, EV2 230Vac
Thermoblock
- Temperature probe NTC sensor for temperature set point
- Thermal fuse TCO 192 °C
- Heating element 230Vac –1400 W
Steamer
- Temperature probe NTC sensor for temperature set point
- Thermal fuse TCO 318 °C
- Heating element 230Vac –1100 W
2. MAIN DIFFERENCES COMPARED TO ECAM45.760
Missing main power supply switch on the back of the appliance.
Missing water softener filter from the welcome set.
Default Aroma set at level 4 for Espresso and for Espresso x2 (as per STIWA requirements).
Default grinder setting at 4.5 (as per STIWA requirements).
3 temperature levels (as per STIWA requirements).

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3. HYDRAULIC DIAGRAM

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4. WIRING DIAGRAM

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CAPTION:
M1: Upper Micro Switch (Transmission Group)
M2: Lower Micro Switch (Transmission Group)
M3: Drawer Micro Switch
M4: Water Tank Micro Switch
M5: IFD (Milk Jug) Presence Micro Switch
M6: Hot Water Pipe / Cleaning Micro Switch
EV1: 3-Ways Solenoid Valve
EV2: 3-Ways Solenoid Valve
L: Live/Phase
N: Neutral
TCO: Thermal Cut-Off
H.E.: Heating Element

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5. WORKING PRINCIPLE
5.1. MICRO SWITCHES, SENSORS AND SOLENOID VALVES
MICRO SWITCHES
Function
Logic
M1 = UPPER MICRO SWITCH
Detects when the infuser is on top
position
“NC”, it opens when the infuser is in top
position
M2 = LOWER MICRO SWITCH
Detects when the infuser is on down
position
“NO”, it closes when the infuser is in down
position
M3 = DRAWER MICRO SWITCH
Detects when the drip tray is in
correct position
3-pin micro switch. When the drip tray is
inserted:
- the contact for the drip tray
detection is OPEN;
- the contact for the transmission
motor power supply is CLOSED.
M4 = WATER TANK MICRO
SWITCH
Detects the presence of the water
tank
3-pin micro switch. When the water tank is
inserted:
- the contact for the water tank
detection is OPEN;
- the contact for the transmission
motor power supply is CLOSED.
M5 = IFD MICRO SWITCH
Detects the presence of the milk jug
“NC”, it opens when the accessory is
present
M6 = HOT WATER SPOUT /
CLEAN MICRO SWITCH
Detects the presence of the hot
water spout or starts the CLEAN
function for the milk jug
“NC”, it opens when the hot water spout is
present or when the milk jug knob is in the
CLEAN position
ENCODER
Function
Logic
HALL SENSOR ENCODER
Detects rotations of transmission
motor
SOLENOID VALVE
Function
Logic
EV1 = 3-ways solenoid valve
Allows the water flow to go to the
Thermoblock
When activated, the water flow goes to the
Thermoblock.
When deactivated, the water flow goes to
the Steamer.
EV2 = 3-ways solenoid valve
Allows the hot water and the steam
to flow to the connection nozzle
When activated, the water/steam flow
goes to the connection nozzle

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5.2. ESPRESSO COFFEE DELIVERY
Espresso coffee delivery stages:
- EV1 solenoid valve is activated
- Thermoblock is activated
- Grinder is activated for a certain timing (based on the coffee taste selection)
- Infuser moves to the mechanical valve
- Pump is activated for a couple of seconds for pre-infusion
- Pump restarts for coffee delivering
- Pump and thermoblock stop, EV1 closes
- Infuser moves away from the mechanical valve and releases the coffee pod
- Mechanical valve discharges excess water/coffee to the drip tray
- Infuser is moved back to the “Coffee Ready” position
Cold water
Hot water
Coffee
Discharge

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5.3. HOT WATER DELIVERY
Hot water delivery stages:
- EV1 and EV2 are activated
- Thermoblock is activated
- Pump is activated in fast pulsing mode for a certain timing
- Hot water is delivered through the hot water spout connected to the nozzle
- Pump stops, thermoblock, EV1 and EV2 are deactivated
Cold water
Hot water
Discharge

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5.4. MILK FROTH PREPARATION
Milk froth delivery stages:
- EV2 is activated
- Steamer is activated
- Pump is activated in slow pulsing mode for a certain timing
- The steam is injected from the nozzle into the milk jug and mixed with the air (according to the milk
froth knob position) to froth the milk
- EV2, steamer and pump are deactivated
Milk jug cleaning stages:
- EV1 and EV2 are activated
- Thermoblock is activated
- Pump is activated in very slow pulsing mode for a certain timing
- Hot water is delivered through the nozzle and air from the milk jug knob in CLEAN position
- EV1, EV2, thermoblock and pump are deactivated
Cold water
Steam
Discharge

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6. SELECT TEST MODE
With the appliance in stand-by (plug connected to the power supply socket), remove the drip tray, then hold
the below buttons pressed simultaneously:
until the message SELECT TEST MODE will appear on the display. Then, within 10 seconds, re-insert the
drip tray and select one of the following functions:

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6.1. LOAD TEST MODE
- After having entered the SELECT TEST MODE function with the above steps, press the DRINK MENU
button to access the LOAD TEST MODE:
- Press one of the below buttons to activate the corresponding load of the coffee machine:
NOTE: The loads can be activated simultaneously, therefore it is allowed for example to activate the
pump together with the solenoid valves.

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6.2. DISPLAY TEST MODE
- After having entered the SELECT TEST MODE function with the above steps, press the MY MENU
button to access the DISPLAY TEST MODE:
- Press each button to check the corresponding reaction shown by means of a dedicated message
(BUTTON 1, BUTTON 2, etc.) on the display:

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6.3. ENCODER RESET
- After having entered the SELECT TEST MODE function with the above steps, press the LONG button
to perform the ENCODER RESET to reset the value of the maximum height of the infuser in the
transmission group:
The appliance will display the message RESET ENCODER on the screen and, after a few seconds, it
will power OFF:
IMPORTANT: To complete the encoder reset procedure, start the appliance normally and force it to
perform a rinse cycle. Once completed, turn the appliance OFF from the STAND-BY button and
finally remove the power cord from the socket.

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7. APPLIANCE DIAGNOSTICS
7.1. POSSIBLE CHECKS WHICH CAN BE EXECUTED FROM THE LOAD TEST MODE
A. COFFEE CIRCUIT FLOW ACTIVATION
- Move the infuser to the UP position (MOTOR UP).
- Activate EV1 solenoid valve and the pump.
The water will pass through the flow meter, the thermoblock, the mechanical valve, the infuser and
will come out from the coffee spout.
B. HOT WATER CIRCUIT FLOW ACTIVATION
- Move the infuser away from the UP position (MOTOR DOWN).
- Activate EV1, EV2 solenoid valves and the pump.
The water will pass through the flow meter, the thermoblock, the mechanical valve by-pass, the
EV2 solenoid valve and will come out from the hot water spout.
C. STEAM CIRCUIT FLOW ACTIVATION
- Move the infuser away from the UP position (MOTOR DOWN).
- Activate EV2 solenoid valve and the pump.
The water will pass through the flow meter, the steamer, the EV2 solenoid valve and will come
out from the hot water spout.
7.2. ELECTRIC CHECKS DIRECTLY ON THE COMPONENTS
A. HEATING ELEMENTS RESISTANCE CHECK
- Thermoblock resistance value: ≈ 38 Ohms.
- Steamer resistance value: ≈ 48 Ohms.
B. RESISTANCE/TEMPERATURE CHARACTERISTICS FOR THE THERMOBLOCK NTC
SENSORS

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7.3. COFFEE TEMPERATURE TEST
Complaints from end users about coffee temperature are quite frequent. They are mainly due to incorrect
appliance adjustments or to an incorrect expectation by the customer.
A coffee temperature measurement is required all the times any of these complaints are encountered.
To perform the coffee temperature test, follow in sequence the below steps:
Turn the appliance ON.
Run a rinse cycle, to warm up the hydraulic circuit.
Set the temperature to the maximum level.
Select to prepare an ESPRESSO LUNGO beverage (refer to the user manual for more details).
Start the coffee preparation.
Wait until at least 20ml of coffee have been delivered into the cup.
Measure the coffee flow temperature at about 2÷10mm from the coffee spout, as shown in the below
picture:
The optimal indicative temperature measurement for coffee should be 83°C±3°C.

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7.4. FROTHED MILK CONSISTENCY AND TEMPERATURE TEST
A frothed milk consistency and temperature test can be required whenever the Serviceman is getting
complaints from the end user about the quality or the temperature of the milk beverages.
To perform the frothed milk consistency and temperature test, follow in sequence the below steps:
Turn the appliance ON.
Fill the milk jug with 200ml of semi-skimmed milk at a temperature of 5°C±2°C. Insert the lid to the jug
and connect it to the appliance.
Set the maximum level of froth by rotating the frothing adjustment knob on the jug lid accordingly.
Place a 250ml PIREX graduated container under the milk spout.
Select the HOT MILK beverage and wait until at least 80ml of frothed milk have been delivered into
the container.
Measure the milk flow temperature during the delivery at about 2÷10mm from the spout, as shown in
the below picture:
The optimal conditions for the frothed milk (without coffee) should be as resumed below:
Froth appearance: small bubbles without splashes.
Milk temperature: 60°C±5°C.
Froth amount: finally the container must have 50% milk and 50%froth.