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11. Warning messages.
SERVING CANCELLED, NO COFFEE
This message appears when the coffee head detects that there is no coffee. For single
coffee, it appears before the serving is prepared. For double coffee, it appears once the
serving is prepared.
EMPTY DREGS TRAY
Thismessageappearsafter400grams of coffee. 50 grams more arepermittedasofthis
moment. If the dregs tray has not been emptied after these 50 grams, the display
alternatesbetween“DREGSTRAYFULL”and“EMPTYINORDERTOCONTINUE”,and
no more coffee is allowed until the tray is emptied.
INTRODUCE DREGS TRAY
This message appears when the dregs tray has been out of the machine for over 2
seconds. No coffee can be served.
INTRODUCE OUTPUT COLLECTOR
This message appears when the milk device has been removed from the machine. No
milk can be served.
SET GRINDER 1 FINER
This message appears when the coffee from the left grinder is being prepared too
quickly. It suggests turning the grinding regulation knob for the left grinder clockwise.
SET GRINDER 1 COARSER
Thismessage appearswhenthe coffeefromthe leftgrinderisbeingpreparedtooslowly.
It suggests turning the grinding regulation knob for the left grinder anti-clockwise.
SET GRINDER 2 FINER
This message appears when the coffee from the right grinder is being prepared too
quickly. It suggests turning the grinding regulation knob for the right grinder clockwise.
SET GRINDER 2 COARSER
This message appears when the coffee from the right grinder is being prepared too
slowly. It suggests turning the grinding regulation knob for the right grinder anti-
clockwise.
OUT OF SERVICE
This message appears when the incident detected disconnects the machine and leaves
it out of service.
NO COFFEE SERVING
This message appears when the coffee head cannot make coffee. No coffee can be
served.
COLD WATER
This message appears when it is detected that the water boiler for the coffee is not
working and hence the water is cold.
The machine carries out an internal diagnosis in order to communicate any incident detected.
The warning message shows the letters SP followed by two codes. The first code indicates the
command which the machine was carrying out at the moment of the incident and the second
code indicates the incident.
5. SAFETY MECHANISMS.
The coffee machines comply to that set out in European Community Directives: Directive 97/
23/CEEonsteamgeneratorsforcoffeemachines(Category1, Module A), Directive 73/23/CEE
on low voltage electrical material and Directive 89/336/CEE on electromagnetic compatibility.
5.1.- The electrical connection cable incorporates a protective connector (earth) to avoid
branching, as set out in electrical safety regulations.
5.2.- The steam generator is tested at 2.25 kg/cm² (220 kPa), the maximum working
temperature being 1.7 kg/cm² (166 kPa).
5.3.- The steam generator incorporates a security valve which comes into operation when
the maximum working temperature is exceeded, in accordance with Directive 97/23/
CEE on steam generators for coffee machines (Category 1, Module A).
5.4.- Thesteamgeneratorisconnectedtoanautomat,PRESOSTATO,whichdisconnectsthe
heater resistors whenever the boiler pressure exceeds 1.5 kg/cm² (147 kPa), and
maintains them in this manner until the pressure comes down 0.2 kg/cm² (19 kPa), at
which point it connects them again.
5.5.- The water enters the steam boiler through a stopcock during manual filling, and through
an electrovalve during automatic filling.
5.6.- The steam generator has two water level detectors to control the filling up of the boiler.
In the event of any failure in the filling circuit, the machine is electronically powered off
(heating and water supply circuits), and a warning message is given to the user.
5.7.- The steam generator incorporates an anti-depression valve in order to prevent liquids
being sucked inwards through the steam arm.
5.8.- The coffee boiler has a temperature sensor which can be used to electronically control
the connection and disconnection of the heater resistor.
5.9.- The coffee boiler has a temperature sensor which disconnects the heater resistor if the
temperature reaches 120 ºC.
5.10.- The machine includes an expansion valve, calibrated at 12 kg/cm² (1176 kPa) of
pressure, in contact via a tube with the wastewater tray.
5.11.- Thehydrauliccircuitincorporatesadevicepreventingreverserotation,hencepreventing
hot water being passed to the pump/general water grid.
