18
19
6. Temperature Adjustment
Coffee boiler temperature can be adjusted through the Display on the push-button panel of the Vibiemme
Domobar Super 2B.
Once the
Power Switch
is on position II, the
Display
shows the word
OFF
.
• Press the
ON
button until the display reads the pre-set temperature value.
• Press the
Program
button until the displayed value starts blinking.
• Now you can insert the desired coffee boiler temperature value. When the value stops blinking, the
parameter you chose has been stored.
The button
Program
allows you to surf the menus and adjust other parameters. Those values concern
some of the parameters already set by the manufacturer during the machine tests. Please check (only
reading them on the display by means of the Program button) the following values and contact your
dealer in case they are different from:
Parameter P......... 1,0
Parameter I......... 0,0
Parameter K........ 0,5
Offset.................. 19
Display variation
Depending on the outside temperature it is normal to see the display value to fluctuate 1 Fup or down
from the set value.
IMPORTANT:
as already described in paragraph 3.1.3 of the general instructions, the temperature value
shown on the display (both during setting than during data reading) takes also into consideration the
offset value, so that what you see is the temperature coming out from the grouphead.
7. Pressurestat Adjustment
The pressurestat controls temperature (pressure) by sensing the pressure in the steam boiler. Accessing the
pressurestat adjustment is simple. Simply remove the
Cup Warming Tray
. Beneath you will see a perforated
panel with a black plug. Remove the plug and fitting a screwdriver turning clockwise/counterclockwise to
adjust the boiler temperature:
CLOCKWISE RAISES the TEMPERATURE
COUNTER-CLOCKWISE LOWERS the TEMPERATURE
* for further information on how the increase ( decrease) of the pressure effect the brew temperature, see the HX
system guide chapter 3 – How it works
8. Hints, Tips, and Tricks
We have already reviewed in the general instructions some of the ways that you can control the way
the Vibiemme Domobar espresso machine operates. The best example is the cooling flush which allows
you equalize and control the brewing temperature throughout the brewing path as well as eliminate any
steam that may have built up during an extended idling period. There are other procedures that you can
use to gain further control over the way your Vibiemme operates.
8.1. Maximizing Steaming Power
You probably have noticed that the heating element cycles on an off while the machine is in operation and
even when it is idling. That can be seen by watching the
Heating Element Activity Lamp
on the control
panel. That cycling can be used to your advantage when steaming milk. For the greatest production of steam
throughout the steaming cycle, start steaming just before the heating element turns off. You can judge this by
watching the Heating Element Activity Lamp in conjunction with the boiler pressure gauge. The goal is to begin
steaming when the boiler is as hot as its range allows while the heating element is still energized. As you draw
