Pid Digital Temperature Control; Activation Of Machine Heating; Setting The Boiler Temperature; Temperature Conversion - Bezzera UNICA Manual De Instrucciones

MOD. BEZZERA UNICA
OFF (Fig. 08, pos. 4) in the lower right corner
of the display (Fig. 08, pos. 2) indicating the
switching off of the resistance.
To heat the group dispense some water (about
500cc), the optimum temperature is reached af-
ter about 5 minutes.
5.1.1 PID digital temperature con-
trol
The coffee machine UNICA is equipped with a
PID digital temperature control that can handle
two different temperatures in the boiler:
coffe
adjusts the temperature in the boiler from a mini-
mum of 80°C to a maximum of 100°C.
steam
adjusts the temperature in the boiler from a mini-
mum of 105°C to a maximum of 120°C.
The adjustment of the temperature in the boiler
depends on many variables such as outside tem-
perature, humidity, quality of the coffee, etc. and
is set at the factory at the average temperature
of 90°C for coffee mode and at 110°C for steam
mode.

5.1.2 Activation of machine heating

Turn on the main switch (Fig. 05, pos. 3) to pow-
er the machine (red light ON Fig. 01 pos 15); the
display (Fig. 08, pos. 2) shows the temperature
measured in the boiler and a red dot (Fig. 08,
pos. 4) in the lower right corner of the display
indicates the activation of the resistance.
The red dot (Fig. 08, pos. 4) will remain ON until
the preset temperature in the boiler is reached.
5.1.3 Setting the boiler tempera-
ture
mode
mode
Warning:
The PID digital temperature control after 3 sec-
onds from the last key activation will store any
changes and go back to displaying the tempera-
ture in the boiler.
coffee
Press the button (Fig. 08, pos. 1), the display will
show the message "CoF" and pressing "+" (Fig.
08, pos. 3) before the expiry of 3 seconds, you
can increase/decrease the boiler temperature
setting by pressing "+" or "-" (Fig. 08; pos 3 -
1).
steam
Press the button (Fig. 08, pos. 1), until the display
shows "StE" and pressing "+" (Fig. 08, pos. 3)
before the expiry of 3 seconds, you can increase/
decrease the boiler temperature setting by press-
ing "+" or "-" (Fig. 08; pos 3 - 1).

5.1.4 Temperature conversion

Warnings:
The machine allows you to choose which unit of
measurement of temperature is displayed:
°C (Celsius).
°F (degrees Fahrenheit).
To set a value, press the button (Fig. 08, pos.
1) the display will show "CoF"; press the but-
ton (Fig. 08, pos. 1) the display will show "StE"
;press the button (Fig. 08, pos. 1) the display will
show "UoM"; press the button (Fig. 08; pos. 3)
in order to change the unit of measurement of
temperature using the keys (Fig. 08; pos. 1/3).
5.2 Switching on during normal op-
eration
1) Plug in.
2) Make sure that there is enough water in the
tank.
3) Turn on the main switch (Fig. 05; pos. 3) (red
26
mode
mode