2Gr Version - Wega Mininova Use And Maintenance Manual For The Technician

20.2

2GR Version

If the machine is in "Water Mains", mode, it must be
switched to internal tank see paragraph 3.7:
• turn on the machine and bring it to working condi-
tion: the gauge should show a pressure of 1-1.2 bar;
• place under all coffee spouts a large pitcher and make
sure the levers of the groups (F) are closed;
• fill the tank with a solution of 125 ml of "PULY-
DESCALER espresso" and 400 ml of water at room
temperature;
• remove the upper grid (H) so as to gain access to the
descaling switch (E);
• set the switch (E) in position 1; the corresponding LED
(G) lights up to indicate that the machine is config-
ured for the descaling;
• replace the top grid;
• perform a series of 30-second deliveries, alternated by
another 30 second pause on both dispensing units,
until the tank containing the solution of detergent
will be emptied completely;
• remove and wash the tank with water;
• fill it with 4 liters (tank full) of clean cold water and
put it back in place;
• perform another series of deliveries on all dispensing
units, until the tank will be emptied so as to perform
the complete rinsing;
• remove the upper grid (H) and return the descaling
switch to position (0), then replace the grill.
• At this point, the procedure is complete; if you want,
you can reconfigure the machine to be fed by the wa-
ter mains; otherwise, if everything is left unchanged,
it will continue to be fed by the inner tank.
If during the dispensing is blocked during the
procedure, check if the LED (G) is on. If it is off, return
the machine to working conditions by performing these
steps:
• make sure that the levers of the groups (F) are in the
closed position;
• remove and wash the tank with warm water, then fill
it with clean cold water and put it back in place;
• return the descaling switch (E) to position (0);
• return the machine to working condition: the gauge
should show a pressure of 1-1.2 bar;
• repeat the descaling procedure again if not com-
pleted; otherwise, it will be sufficient to carry out the
rinsing only.
Technical manual
H
2
2 5
Throughout the procedure DO NOT open the water
i
and/or steam taps.
For perfect cleaning, only use special detergent that
is to be diluted in the amount of cold water indicated
on the package (see installer).
E
ROSSO
C:0 M:100 Y:100 K:0
NERO
C:0 M:0 Y:0 K:100
VERDE
C:100 M:0 Y:100 K:0
F
Q
G
E
33