Descaling; 1Gr Version - Wega Mininova Use And Maintenance Manual For The Technician

20

Descaling

This procedure is designed for use with liquid
descaling "PULYDESCALER espresso".
20.1

1GR Version

If the machine is in "Water Mains", mode, it must be
switched to internal tank see paragraph 3.5:
• Turn on the machine and bring it to working condi-
tion: the gauge should show a pressure of 1-1.2 bar;
• place a large pitcher under the coffee spout and make
sure the lever of the dispensing group (F) is closed;
• remove the internal tank (G) and the upper grid (H)
so as to gain access to the descaling switch (E);
• set the switch (E) in position (1); the corresponding
LED (J) lights up to indicate that the machine is con-
figured for the descaling;
• replace the upper grid and the tank;
• fill the tank with a solution of "PULYDESCALER es-
presso" and water at room temperature;
• perform a series of 30-second deliveries, alternated
by another 30 second pause, until the tank containing
the solution of detergent will be emptied completely;
• wait about 5 minutes, so as to allow the descaling
agent to work;
• remove and wash the tank with clean water;
• fill it with 4 liters (tank full) of clean cold water and
put it back in place;
• perform another series of deliveries until the tank is
empty, and then fill it up with cold clean water and
perform this operation again, so as to completely
rinse the tank;
• remove the tank (G) and the upper grid (H) and return
the descaling switch to position (0), then replace the
grill and the tank.
At this point, the procedure is complete; if you want,
you can reconfigure the machine to be fed by the water
mains; otherwise, if everything is left unchanged, it will
continue to be fed by the inner tank.
32
E
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).
G H
2
5
Q
F
J
E