45
DESCALINGDESCALING
46
From time to time, clean the machine casing with
a damp cloth and dry it.
Clean the pre-ground coffee container (14) with
the aid of the brush suppli ed whenever necessary.
Central unit
Clean the central unit (22) whenever the coffee
bean container has been re-filled, or at least
once or twice a week.
Switch off the machine by pressing the main
switch (4) and open the service door (19).
Remove the coff ee grounds container (1) .
35
Remove th e central un it (22) by ho lding the
handle and pressing the “PRESS” key.
Wash the central unit with warm water without
any solvent. Make sure there are no coffee
residues on the two steel filters.
36
Remove the superior filt er by means of the suppli ed
screw and clean it. Unscrew the screw, turning it
counterclockwise. Then, dry all the parts of the
central unit and tighten the filter with the screw.
37
Remove the coffee rest drawer (23) and clean it,
using a non-abrasive solvent.
Clean the service space thoroughly and fit the
coffee rest drawer again.
38
By holding the central unit by its handle, slide it
back into its original position, making sure it is
correctly engaged. Then close the service door.
Insert the cof fe e grounds containe r a ga i n.
When fitting the central unit, do not press
“PRESS” (this may cause damage to the
machine)!
Warning: if the centr al unit is not correctly f itted,
the display shows
"BREW UNIT MISS. "
It is not possible to brew coffee. The machine
does not work.
Coffee grinder
Never fill the coffee grinder with water: it may
damage the machine!
Descaling
Descaling is necessary to remove limescale from
all surfaces and holes, thus ensuring a perfect
operation of valves, heating controls and other
important parts.
Note:
due to the complexity of the coffee
machine hydrau lic circuit, th e following des caling
cycles (automatic and standard) do not allow the
descaling of all tubes.
In fact, easily accessible components s uch as the
central unit (22) and its plastic connection are
excluded.
The machine must be descaled every 3-4 months,
according to the water hardness degree. A more
frequent descaling is recommended wherever
the water hardness degree i s ve ry hi g h.
This machi ne is supplied with a par ticular warni ng
light
"DESCALING "
"READY FOR U SE "
Descaling must be carried out at the latest when
this message i s displayed. In spite o f the message,
the machine does not stop working.
Furthermore, said display warning may be
adjusted according to the water hardness degree.
The machine has been adjusted at the factory to
25° fH value, which causes the display to switch
on showing the message DESCALING after
approx 150 l.
The water hardness value may be changed, if
necessary, fo llo w i ng t he ins t r u c t i ons shown on
page 37.
The following adjustments are possible:
Hardness 4:
high water hardness, over 29°fH
(14° dH), approx. 80 l water passage.
Hardness 3:
medium water hardness, approx.
20°-29°fH (7°-14° dH), approx. 150 l water
passage
Hardness 2:
soft water, approx. 12°-20°fH
(4°-7° dH), approx. 300 l water passage
Hardness 1:
less than 10°fH (3° dH), approx.
500 l water passage
In case of hard water, a filter should be used
both to improve the coffee quality and to pr otect
the machine, thus reducing the descaling
frequency.
Note:
for this purpose, use a descaling product
suitable for coffee machines.
Never use
vinegar to clean the machine; it might
damage it.
There are two ways to carry out the descal ing of
the machine:
Automatic descaling
Set the machine on the programming mode (see
page 38).
Move the asterisk to the menu item DESCALING using
the keys
and press MENU to activate it.
The display shows:
"DESCALING "
Pour a descaling solution into the water tank
(according to the instructions on the package).
Place a large container under the steam/hot
water dispensing tube and open the steam/hot
water knob slowly. The automatic descaling
starts. Small quantities of descaling solution are
pumped into the circuit. Then the pump stops to
let the solution take effect.
The display shows:
"MACHINE IS "
"DESCALING "
This operation takes about 45 minutes. As soon
as descaling is completed, the display shows:
"DECALING "
"FINISHED "
and the pump stops.
Turn the hot water off. Press the MENU' key. The
display shows that the machine needs to be
rinsed to clean any descaling remains.
"RINSE MACH INE "
"FILL WATERT ANK "
Remove the water tank, rinse it and fill it with
water. Clean the machine using the hot water
knob and let the whole tank content flow out. The
display shows:
"RINSING "
"FINISHED "
0339.951 ed. 01 10/00 ING (UL) 11-12-2000, 18:079