Saeco Incanto Rondo User manual

Service Manual
“ Incanto RONDO’ ”
EN Incanto DOT.indd 18/05/2005, 12.051

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Contents
Documentation required ......................................................................... 3
Equipment............................................................................................. 3
Safety warnings ..................................................................................... 3
Technical data........................................................................................ 4
Test mode ............................................................................................. 5
Temperature settings.............................................................................. 7
Operating logic with using “aqua prima” lter........................................... 7
Hydraulic circuit diagram ........................................................................ 8
Components .......................................................................................... 9
Cover disassembly.................................................................................. 10
Electronics disassembly .......................................................................... 11
Plate unit disassembly ............................................................................ 14
Coffee grinder plate disassembly............................................................. 16
Boiler disassembly.................................................................................. 17
Gearmotor disassembly .......................................................................... 18
Coffee grinder assembly and disassembly ................................................ 20
Grinder disassembly ............................................................................... 26
Grinder settings ..................................................................................... 28
Ground coffee dose adjustment............................................................... 29
Electronics (operation of jumpers)........................................................... 30
SBS Valve ............................................................................................. 31
AQUA PRIMA lter.................................................................................. 32
Wiring diagram ..................................................................................... 34
Exploded drawing of Incanto Rondò ........................................................ 35
Instruction booklet ................................................................................. 37
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Documentation required
The following technical documentation is required for repairs:
Instruction booklet of specic model
Technical documentation of specic model
Equipment
As well as the standard equipment, the following tools are required:
1 Special screwdriver with Torx T10 tip
1 Digital thermometer with scale of > 150°C
Must be suitable for measuring in liquids and on surfaces
Safety warnings
Before starting operations on the machine, consult the relative instruction booklet.
Observe all current standards related to repairs of domestic appliances.
Always disconnect the power plug from the mains before carrying out repairs. Simply turning off
the main switch is not sufcient to prevent electrical discharge.
The Rondò models are class 1 appliances. On completion of repairs the insulation and dielectric
rigidity tests must be performed.
EN Incanto DOT.indd 18/05/2005, 12.053

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“ Incanto RONDO’ ” Technical data
Power supply and output: 230 V~ ; 50 Hz ; 1250 W
120 V ; 60 Hz ; 1250W
100 V ; 60 Hz ; 1250 W
Safety system: Safety thermostat at 175 °C
Pressure relief valve on boiler
Heat exchanger output: 1090 W - for preparation of coffee, steam and
water
Gearmotor: DC motor in two directions of rotation (33 V)
Pump: Ulka with reciprocating piston; type EX5
230V ; 50 Hz ; 48 W
120V ; 60 Hz ; 41 W
100V ; 50/60 Hz ; 55 W
Coffee grinder: DC motor (230 V DC) with ceramic grinders,
increment pin in brass (max. absorption 0.9 A).
Absorption: During heating phase
– approx. 4.5 A (230V)
– approx. 9 A (120V)
– approx. 11 A (100V)
Dimensions: 285/375/400 (mm)
Power cable length 1.2 m
Weight: approx. 9 kg
Coffee container capacity: 300 g
Residue container capacity: 13 residue
Water tank capacity (removable): approx. max. 2 L
Water circuit lling time: approx. 10 sec. On rst lling cycle
Heating time: approx. 60 sec. with water at 10 °C
Delivery temperature: approx. 84 °C (± 5°C)
Quantity of coffee delivered From 20 cc to 240 cc
Grinding time: approx. 5-7 sec.
Covering material: ABS
Housing material: metal
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




 
 
 
 
 
INCANTO RONDO’ test mode
In test mode, faults can be easily identied thus reducing the time required for fault nding procedures.
To enter test mode, the machine must be switched off with the valve closed.
To enter test mode, press the following buttons
The side valve must be closed.
Press buttons 1 and 3
Turn on the machine by means of the rear switch.
Potentiometer 4 in position MINIMUM
Gearmotor anticlockwise rotation (delivery position) Button 3
Ensure correct anticlockwise rotation of the gearmotor.
Check the noise level of the gearmotor.
Ensure correct lifting of the unit
When the gearmotor has reached the delivery phase, LED 1
illuminates
Pump operation Button 1 + knob open
Ensure correct operation of the pump.
Check the noise level of the pump.
Check that LED 4 ashes (turbine)
Potentiometer 4 in position MEDIUM
Gearmotor clockwise rotation (rest position) Button 3
Ensure correct clockwise rotation of the gearmotor.
Check the noise level of the gearmotor.
Ensure correct lowering of the unit
When the gearmotor has reached the rest position, LED 1 illuminates
Boiler resistance absorption Button 1
Check correct absorption of the boiler by means of an ammeter
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Potentiometer 4 in position MAXIMUM
Coffee grinder operation Button 3
Ensure correct operation of the coffee grinder.
Check the noise level of the coffee grinder.
(At the end of grinding, led 4 turns off)
Check microswitches in test mode
LED MICROSWITCH POS. POTENTIOMETER
LED 1
Delivery gearmotor microswitch Minimum
Rest gearmotor microswitch Medium
Float (xed) Maximum
LED 2 Unit microswitch /
LED 3 Valve microswitch /
LED 4 Residue microswitch /
Unit microswitch Medium
LED 5 Door microswitch /
Functions of LED 4 and LED 5
LED 4 xed
Remove residue
No coffee
Fill circuit
Fill water tank
LED 4 ashing
No unit
No residue tray
Door open
LED 5 ashing
Replace the acqua prima lter
(reset the counter and the LED by pressing and holding the steam button for ve seconds)
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Temperature settings





 


 

 

 

                   
                  
     
              
   
 



  
  
Operating logic with “AQUA PRIMA” lter
When use of the “aqua prima” lter is selected on the user menu or via the control panel, the
system water count logic is as follows:
If the “aqua prima” function is enabled, the electronics performs a pulse count of the turbine,
recording one pulse every 2 revolutions.
If the “aqua prima” function is disabled, the electronics performs a pulse count of the turbine,
recording one pulse every revolution.
The gure below provides a graph, illustrating this function
 


 




 

 

 

 
 
  
EN Incanto DOT.indd 18/05/2005, 12.057

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INCANTO RONDO’ water circuit diagram
  
  
 
  
 



  
 
 

  
  
  
 
 
 
Component Function
1Water tank Water supply
2Float Water empty recognition
3Water lter Elimination of solids from water
4Turbine Flow measurement by means of pulses, regulates
quantity
5Pump Water ow rate/pressure
( 15 bar)
6Relief valve Protects the water circuit from overload (opens at 17-19 bar)
7Heat exchanger/heating Heats for delivery of water, coffee and steam
8Temperature sensor Sends current temperature values to the electronics
9Safety thermostats In the event of temperature overload, shuts off power
supply to machine
10 Unit probe On activation of the delivery unit, the unit probe opens
the water route to the delivery unit.
11 Hot water /steam valve For delivery of hot water and steam
EN Incanto DOT.indd 18/05/2005, 12.058

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“ INCANTO RONDO’ ” components
Electronics
Valve
Coffee grinder
Pump
Coffee grinder
motor
Gearmotor
Boiler
Turbine
Relief and
compensation valve
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COVER disassembly
Phase 1
Loosen the 2 cover screws
Remove the coffee grinder screw
Phase 2
Loosen the 2 rear cover screws
Phase 3
Remove the seal from the coffee container
N.B.
For assembly, perform the above procedure in reverse order
Phase 3
Pull the side knob to remove
Remove the cover.
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ELECTRONICS disassembly
Phase 1
Locate and detach all contacts on the
electronics
Phase 2
Loosen the two screws securing the card
to the plate.
Phase 3
Remove the card support assembly.
N.B.
For assembly, perform the above procedure in reverse order
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Phase 4
Loosen the 4 screws securing the card to
the support.
Phase 5
Remove the  at cable from the power/
CPU card
Phase 6
Use a small screwdriver to prise off the
chrome plated adjustment ringnut.
Phase 7
Loosen the 4 screws and remove the
front panel.
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Phase 8
Loosen all screws securing the card to
the support.
The  gure illustrates the electronic assembly completely disassembled.
N.B.
For assembly, perform the above procedure in reverse order
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PLATE UNIT DISASSEMBLY
Phase 1
Remove the rear tank support.
Phase 2
Detach the earthing faston connector on
the door.
Disconnect the steam pipe.
Phase 3
Detach the door from the housing.
Phase 4
Loosen the 4 screws securing the plate
to the housing.
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Phase 5
Loosen the two screws securing the
cable winder.
Phase 6
Detach the earthing faston connector
shown in the  gure.
Phase 7
Remove the assembly plate unit from the
housing.
N.B.
For assembly, perform the above procedure in reverse order
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COFFEE GRINDER PLATE disassembly
Phase 1
Loosen the two screws of the valve.
Phase 2
Remove the two screws on the plate.
Phase 3
Cut the retainerclips andremove the
coffee grinder plate.
N.B.
For assembly, perform the above procedure in reverse order
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BOILER disassembly
Phase 1
Loosen the 3 screws securing the boiler
to the plate.
Phase 2
Detach all faston connectors on the
boiler.
21
1
2
Phase 3
Lift the protection covers (1)
Loosen and detach the connection
pipes (2)
N.B.
For assembly, perform the above procedure in reverse order
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GEARMOTOR disassembly
MS2
1
3
2
1
MS1
Phase 1
1) disassembly THE HOUSING
2) Remove the base plate: loosen the
upper xing screws (1) and lower xing
screws (2). Remove the earthing wire of
the housing and lift the housing plate.
3) Loosen the screws of the heat
exchanger (3)
4) Remove the heat exchanger power
supply.
5) Extract the coffee grinder motor from
its support
Phase 2
Remove the 9 screws (1) of the
gearmotor cover and remove the latter.
The gure alongside illustrates the
microswitches of the gearmotor.
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1
WARNING!
The motor of the gearmotor (1) cannot be removed without disassembling the pump.
N.B.
For assembly, perform the above procedure in reverse order
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Coffee grinder disassembly and assembly
Phase 1
Disconnect the grinder motor wiring from the
rest of the wiring by cutting the three clips
indicated by the arrows (taking great care not to
cut the wires) and remove the black circular clip.
Phase 2
Detach the power cable and grinder motor
sensor cable from the control card.
Phase 3
Loosen the three xing screws using a Phillips
screwdriver.
Phase 4
Loosen the four xing screws of the grinder
motor ange.
EN Incanto DOT.indd 18/05/2005, 12.0520