USER MANUAL
Spirit User manual
page 6
Temperature controller switches
Each boiler is equipped with its own temperature controller and ON-OFF switch (see Figure 5) so that
you can engage and disengage the heating of any group individually, e.g. when business is slow.
You may also disengage the steam/hot water boiler heating if only espressos are made. However,
keep in mind that in this case the heat exchangers are immersed in cold water so that the water
flowing into the coffee boilers is not pre-heated. With high output, the coffee boiler heating element
(900 Watt) may not be able to keep up with the demand and brewing temperatures may fluctuate more
than when the steam boiler is engaged.
Figure 5. Showing the temperature controllers with their ON-OFF switches for the steam boiler and the
two groups on a Spirit Duette. Switches are in the OFF position with levers pointing down, displays are
unlit.
Volumetric stop of a brew
When water flows through a coffee group, the flow meter of that group sends pulses to the controller.
The controller counts the pulses after activation of the group and will de-activate the group when the
pre-set number of pulses has been received (that is when the pre-set volume of water is counted).
However, the amount of water that will end up in the cup may still vary considerably.
The next paragraph describes why a consistent volume programming procedure should be followed to
have …
Consistency in programmed volumes
Volumes should be programmed as if you are making a normal brew: with fresh coffee grinds
in the filter basket and a 2 second flush.
See next paragraphs for step-by-step instructions for touchpad and Bastone versions of the Spirit, the
description and explanation below is valid for all Spirits.
The machine must have been used for a few days
before accurately repeatable volumes can be
programmed.
Programmed volumes mutate during a few days after installation as during first fill there will be an
inflow of about 2.5 litres of fresh water to each group. After a few days the excess air, which is always
present in tap water, has segregated and will be expelled from each group and air content in the
coffee-water is stabilised.
The machine must be completely warmed up
and used to make coffee a few times per group.
Using the machine ensures that the drain trap contains some water (which may evaporate overnight
when the machine is not used but still warm).
Variance in coffee bed characteristics (ground coffee particle size and distribution and packing/
tamping) should be a small as possible.
You have to make sure that the coffee-bed during volume-programming is the same as during the day
(for that reason: do not use grinds that have been in a storage container if you normally use grinding-
on-
demand; level and tamp the grinds as if to make an actual brew; …).
ON-OFF switches
coffee boiler
controller
coffee boiler
controller
steam boiler
controller
