TECHNICIANS' manual
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7.4.6 MULTIFUNCTIONAL DISPENSER check
The multifunctional dispenser is an im-
portant component for the correct opera-
tion of the machine. Perform the check as
follows:
• Activate the dispensing groups for
about 30 seconds;
• Attach a capsule holder (E) with a
pressure gauge (available on request)
to the dispensing group;
• Activate the dispensing group, and
use the pressure gauge (F) to monitor
the pressure as it increases up to 0.8-0.9 MPa (8-9 bar);
• Check that the pressure is increasing
due to the heated water expanding un-
til it reaches approximately 1.2 MPa (12
bar): when this value is reached, it con-
firms that the valve is working correctly
and the seals and solenoid valves are
tight;
• Stop dispensing;
• Repeat the check on the other dispens-
ing groups.
If any malfunctions are detected, the multifunctional
dispenser must be replaced.
7.5 Water filter maintenance
7.5.1 Determining the water hardness
As part of the filter maintenance, it is advisable to test the
water beforehand.
To identify the carbonate hardness of the water use the spe-
cial kit as follows:
• Put 10 ml of water to be tested (A) in the test tube.
• Add a drop of reagent (B) and mix.
• Proceed in the same way by counting the number of drops
until the solution (C) turns from blue to red.
1 DROP = 1°dKH
Example: 9 Drops ----> 9°dKH carbonate hardness
C
A
B
7.5.2 Bypass configuration
Depending on the hardness of the water, adjust the bypass of
the water filter as shown in the table below. Example:
9°dKH water hardness
Bypass adjustment 2
Water
hardness
(°dKH)
Bypass
Adjust.
Filter capacity (litres)
V M L XL
4 3 6.250 9.500 13.000 17.000
5 3 5.000 7.600 10.400 13.600
634.165 6.330 8.665 11.330
7 3 3.570 5.425 7.425 9.710
8 2 3.125 4.750 6.500 8.500
9 2 2.775 4.220 5.775 7.555
10 2 2.500 3.800 5.200 6.800
12 1 1.865 2.835 3.885 5.080
14 1 1.600 2.430 3.330 4.355
16 0 1.185 1.800 2.465 3.220
20 0 945 1.440 1.970 2.575
24 0 790 1.200 1.640 2.145
≥ 25 0 ≤ 755 ≤ 1.150 ≤ 1.575 ≤ 2.060
The values indicated in the table may vary, depend-
ing on the type of filter cartridge used
.
To adjust the bypass, push the (D) button and turn.
D
E
F
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