Unic Stella Epic, Технические заметки

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10
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Adjusting the pump pressure
When infusing, the pressure must be 9 to 10 bar (0.9 MPa et 1 MPa),
display on the control/settings screen.
The pump is located on the right-hand side of the machine and is
adjusted on this same side.
SCREW to INCREASE pressure,
UNSCREW to REDUCE pressure,
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Adjusting the water inlet solenoid valve
The water inlet solenoid valve is on the right-hand front of the machine.
It is accessed from the front of the machine.
When the machine has reached its operating temperature, start a
cycle (with coffee) continuously on each unit simultaneously.
Induce the boiler to fill up (by drawing hot water).
Adjust the maximum flow rate of the solenoid valve so as not to fall
below 7 bar (0.7 MPa).
Then check that the filling time of the boiler is not excessive.
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Adjusting the coffee grinding
Wait until the machine has reached the set temperature 0.9 to 1 bar (0.09 MPa to 0.1 MPa).
The coarseness of the grinding determines the time needed for hot water to pass through the dose. This time
is usually controlled by using the two-cup filter with two doses of coffee.
Average time to make 2 cups (6 to 7 cl. per cup): 30 to 35 seconds.
- If this time is shorter, reduce the grinding coarseness.
- If this time is too long, increase the grinding coarseness.
To obtain a good result, use at least 6 g of (good) ground coffee per cup.
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Adjusting the mixer tap for hot water
The mixer tap is located on the top, on the right-hand front of the machine. To adjust it, it is necessary to
remove the right side.
The temperature range is approximately 55°C to 95°C (131°F à
203°F), to adjust the required temperature, use a flat screwdriver. The
adjustment is done on the cold water solenoid valve (if it is not already
open, open the hot water solenoid valve to its maximum).
Always make adjustments during the hot water cycle
.
If you make adjustments without drawing any hot water, as the water
is incompressible, you could damage the elements of the water circuit.
SCREW to INCREASE the temperature
UNSCREW to REDUCE the temperature
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Adjusting the basin
On the Stella EPIC range, the basin can be adapted to the products
required by the user.
5 positions possible, clearance of 115 mm maximum.
The adjustment is done manually by two triggers located below on the
sides of the basin.
85 mm
200 mm