Dispensing Steam And Hot Water - La Marzocco linea pb Manual

5. Dispensing Steam and Hot Water

1) 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 2 steam wands (part 7,
fig. 1) which are connected to the steam
valve, into the liquid to be heated, turn the
steam knob (part 8, fig. 1) gradually 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,
16
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.
2) Preparing tea and other hot drinks
TEA
You may dispense hot water by using the
fixed nozzle (item 9 fig 1). To dispense hot
water, press the tea water button on the
right most group.
This button commands the hot water
delivery.
The volume of water delivered may
be adjusted via the display (see the
Software Programming Manual for further
instructions). The temperature of the water
dispensed may be adjusted by adjusting
the mixing valve under the right side cover
of the espresso machine. (only on the
models of espresso machine equipped
with this accessory)
HOT WATER MIX VALVE