10
EN
4. Machine Operation and Coffee Preparation
Once installation has been completed, you
can proceed to hook up the filter holders
(Fig. 5) called portafilters, together with
their filters, to the bottom of the groups
by rotating them from left to right. Before
operating the various switches and thus
powering up the heater elements, fill up
the boiler tanks with water, as follows:
1. COFFEE BOILER
The water flows inside the coffee boiler
directly, as soon as the water system
and purifier taps are opened. Since the
inflowing water will compress the air in
the boiler it will be necessary, in order to
completely “saturate” the boiler-groups
assembly, to remove the group cover
plate (part 20 Fig. 4) and unscrew the
small bolt (part 21) called bleed screws
a little way so as to allow air to escape
until a few drops of water leak out (see
diagram below). This should be repeated
for each group, then tighten the bleed
screws again and reinstall the cover.
Connect the other end to a suitable waste
water collection system.
In case such a system is not available, and if
acceptable according to local regulations,
drained liquids may be collected in a
suitable bucket and any necessary drain
pipe extensions shall be made using steel-
lined PVC tubing and suitable hose clamps.
fig. 5 - Portafilter (see also part. 4, fig. 1 or 3)
Saturation of group via “bleed screw”
Summary of Contents for Linea
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