Water Filter/Softener; 1 Depressurize The Steam Boiler - La Marzocco kb90 Series Manual

Portafilter Support

9) Water Filter/Softener

Please see the documentation accompanying
the water filter/softener for proper operating
and cleaning instructions.
• Steam boiler draining: to activate this function
you need to access the programming menu
(see page 106). Yearly, we recommend to
fully drain the steam boiler by means of the
specific drain cock located on the side of
the boiler or under the boiler.
10) Depressurize the steam boiler
Press and hold the encoder knob to set
the espresso machine to "OFF", then
push down the steam lever in order to
depressurize the steam boiler.
22
IMPORTANT
If the machine has not been used for more
than 8 hours or, in any case, after long
periods of being idle, in order to use the
machine to its full potential it is necessary
to perform some cleaning cycles before
brewing beverages as follows:
- Groups: with the portafilters engaged in
the groups brew water through each for
at least two minutes
- Being careful to avoid burns, turn
on each steam wand for at least one
minute.
- Turn on the hot water valve for the
time necessary to allow the following
quantities of water to be brewed:
At least 1 liter for a 1/2 group machine
At least 2 liters for a 3 group machine
If the machine is not going to be used
for long periods of time, it is advisable to
follow these safety indications:
- Disconnect the machine from the water
mains or interrupt the water connection
via a mains tap.
- Disconnect the machine from the
electrical mains.