6.2 Manual adjustment of the brewing pressure
You can individually adjust and change the brewing pressure by turning the adjusting screw, choosing a
value between approx. 8.5 and 12 bar.
To adjust the brewing pressure, proceed as follows:
1. Remove the Drip tray.
2. Place the portafilter with the blind filter (filter without holes) into the brew group.
3. Operate the group lever and read pressure at the pump pressure gauge.
4. Choose the desired brewing pressure by turning the adjusting screw with a coin or a flat screwdriver.
You can reduce the brewing pressure by turning the screw anti-clockwise and increase it by turning it
clockwise.
5. You can read the programmed pump pressure on the pump pressure gauge.
6. Replace the Drip tray. Now place the group lever back into the lower position to stop brewing. Unclamp
the portafilter and replace the blind filter with a coffee filter.
7. Now the machine is ready for use again.
6.3 PID-display functions
The following explains the different programming options of PID control.
6.3.1 Programming the temperature of both boilers
During normal operations, the temperatures of the coffee boiler (t1, period in the 1st position) and the steam
boiler (t2, period in the 2st position) are indicated alternately.
The controls are factory pre-set so that both boilers are heated consecutively, whereby the coffee boiler (t1)
has priority. This means that the steam boiler (t2) is activated only after the programmed temperature of the
coffee boiler has been reached.
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