15
Wegaconcept
Technical manual
ENGLISHOperation
3.5 External motor pump adjustment
To adjust operating pressure proceed as follows:
press the "• PROG/STOP" button for continuous co ee
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-•
ing the "PROG/
STOP" button
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 o 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:
for each co ee unit, carry out a continuous delivery, 1.
in order to release the whole volume of water
contained in each associated coffee tank (1.2
litres);
release the whole volume of hot water inside
2.
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;
continuously release steam for at least 1 minute for
3.
each steam delivery point;
When installation is complete, the installer must write
a report about the performed operations.
1
When the machine
is turned on, it will
activate the motor
pump installed and
begin to ll the services
boiler and the water
heaters for the co ee (equal to the number of delivery
groups installed on the machine.)
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COFFEE
WATER FILLING
In order to remove
the air from the
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
(after about 10
minutes), signaled by
the disappearance of
the “PLEASE WAIT” indication, it will be possible to
make the co 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.
0,0 Bar Press 3,5
PLEASE WAIT
Humidity 38% P 85%
0.7 Bar Press 3.5
08:30 14-APR-2010
Humidity 38% P 85%
0,0 Bar Press 3,5
STEAM ESCAPE
Humidity 38% P 85%
0.0 Bar Press 3.5
08:30 14-APR-2010
MAKE ATTENTION
WATER/STEAM ESCAPE
0,0 Bar Press 3,5
08:30 14-APR-2010
2
!
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.
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