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5. Machine ignition
1)
Rotate the switch knob to position 1. The red indicator light comes on.
2)
When the machine is switched on, the electronic card checks water level inside the boiler. After
approx. 3 seconds, the filling pump and solenoid valve are enabled for filling.
3)
In position 1 the coffee machine will automatically be filled with
water up to the pre-set level (level probe inside the boiler).
All machines come with a manual filling lever (fitted to the water
distribution unit) (Photo 2) which can be used in an emergency if
the automatic level control device is not working properly.
NB
: Electronic models are fitted with a safety level indicator. If the
probe does not detect water in the boiler within 120’’, the machine
stops and the keypad LEDs start to flash. To reset the alarm turn
the machine off then on again. If the problem remains, check that water is arriving from the water
circuit.
4)
When the internal pump stops the water in the machine has reached the set level. Take the switch
to position 2.
5)
When the switch is on position 2 the heating
element is activated, the green warning light comes
on and the heating element starts heating the water.
It is advisable that you dispense water for 5 seconds
so as to eliminate any air bubbles from the
thermosiphon circuit and for better thermal
compensation.
6)
Wait approximately 30 minutes to allow the machine to reach its
operating temperature. When the green warning light goes out the
set machine pressure has been reached. The red indicator light will
be always light (tension on the electrical circuit).
7)
Adjust pressure inside the boiler to the usual specifications by
means of the relevant screw on the pressure gauge.
(Photo 3: increases pressure; reduces pressure).
This operation must be carried out by a specialized technician.
8)
Adjust coffee delivery pressure to the usual specifications by
means of the relevant screw of the internal pump.
(Photo 4: increases pressure; reduces pressure).
This operation must be carried out by a specialized technician.
