modbar Steam System Guía Sobre El Funcionamiento página 17

4) Steaming milk or other liquids
In order to allow for any condensed water
in the wand to be released ALWAYS allow
some steam to be discharged by turning on
the valve before inserting the steam wand
into the pitcher of liquid to be heated.
Dip one of the steam wand (see p. 7, item
2) which are connected to the steam valve,
into the liquid to be heated, push down the
lever (see p. 7, item 1) until steam comes
out at the end of the wand.
The steam will transfer heat to the liquid
raising its temperature up to boiling point.
Be careful not to allow liquid to overflow in
order to avoid severe burns.
In order to prevent the heated liquid from
being sucked back into the steam boiler it
is recommended before using the wand that
you purge the steam valve and steam wand
by opening the valve for a few seconds to
allow steam to escape to the atmosphere
from the end of the steam wand. Failure
to do so can cause the heated liquid to
transfer from the heated liquid container
to the steam boiler (via vacuum created
from cooling parts). This condition is
undesireable and can cause contamination
in the steam boiler. After use remember
to purge the wand by opening the steam
valve for a few seconds, and then clean
the outside of the wand itself with an
appropriate cloth.
In order to prepare milk for making
cappuccino with the right amount of foam,
go through the following steps:
• After purging the steam wand place the
container half-full of milk underneath,
carefully open the steam valve and raise
the container so as to bring the wand end
to a point just below the surface of the
milk; at this point, move the container up
and down just enough to dip the nozzle end
in and out of the milk until you get the right
amount of foam, bring the temperature
of the milk almost up to 149/158°F or
65/70°C. You can then pour this milk into
a cup containing warm espresso and you
will end up with a fresh cup of cappuccino.
5) Dispensing Operations
The Modbar steam tap is operated via a
lever handle located on top of the tap.
This handle actuates a solenoid valve that
allows steam to pass through the steam
wand.
To dispense steam, move the lever handle
from the closed position (up) to the open
position (down). The lever will come back
up thanks to a spring placed under the
lever itself. To stop the steam push down
the lever again.
Cool
Hot
6) Pressurestat
It is possible to regulate the pressure of
the steam boiler by pressurestat (see p. 7,
item 8).
The adjustment must be performed by
qualified and authorized personnel using
a tool.
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