External Motor Pump Adjustment; Machine Tune-Up - Wega Concept Use And Maintenance Manual

When the machine
is turned on, it will
activate the motor
pump installed and
begin to fi ll the services
boiler and the water
heaters for the coff ee (equal to the number of delivery
groups installed on the machine.)
In order to remove
t h e a i r f r o m t h e
heaters, each time the
machine is turned on
the solenoid valves
of the groups will be
activated, making water and steam come out from the
perforated disk of each group for about 10 seconds.
When the heating
phase of the delivery
groups has finished
( a f t e r a b o u t 1 0
minutes), signaled by
the disappearance of
the "PLEASE WAIT" indication, it will be possible to
make the coff ee selections. For the delivery of hot water
and steam, it will be necessary to wait for the complete
heating of the services boiler.
During the heating
phase of the services
boiler (from 95°C to
98°C), the machine will
execute a light delivery
of water and steam
from the hot water nozzle.
The delivery of steam
and hot water, and
thus the full operation
of the machine, will
be possible only at a
pressure higher than
0.6 bar.
!
To avoid the risk of burns, it is advisable to keep
hands away from the hot water nozzle, steam
nozzle and delivery groups during the machine's
heating phase.
Technical manual
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COFFEE
WATER FILLING
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MAKE ATTENTION
WATER/STEAM ESCAPE
0,0 Bar Press 3,5
PLEASE WAIT
Humidity 38% P 85%
0,0 Bar Press 3,5
STEAM ESCAPE
Humidity 38% P 85%
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Humidity 38% P 85%
3.5

External motor pump adjustment

To adjust operating pressure proceed as follows:
PROG/STOP" button for continuous coff ee
• press the "
delivery;
• adjust the pressure by turning the screw located on
the pump (1) so as to
obtain a value between
8 and 9 bar: tightening
the screw increases the
pressure, and loosening
it reduces the pressure.
check the pressure on
the display (2);
• end the delivery press-
i n g t h e " PROG/
S T O P " b u t t o n
again.
3.6

Machine tune-up

When installation is complete, the appliance has to be
started, brought to the nominal working condition and
left in the "ready to operate" condition for 30 minutes.
Afterwards, the appliance has to be turned off and
emptied of the first water introduced in the whole
hydraulic circuit, to eliminate possible initial impurities.
Then the appliance must be once again loaded and
brought to the nominal working conditions.
After reaching the "ready to operate" condition, the
following deliveries have to be performed:
1.
for each coff ee unit, carry out a continuous delivery,
in order to release the whole volume of water
contained in each associated coffee tank (1.2
litres);
2.
release the whole volume of hot water inside
the boiler (8 litres for 2GR, 13 litres for 3GR and
4GR), by performing a continuous delivery from
the appropriate nozzle. In case of several delivery
points, divide the volume based on the number of
the delivery points;
3.
continuously release steam for at least 1 minute for
each steam delivery point;
When installation is complete, the installer must write
a report about the performed operations.
Wegaconcept
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