Pumping System; Valve Group; Pressure Limitation Safety Valve; Expansion Valve- Non-Return Valve - Wega Wegaconcept Use And Maintenance Manual

Wegaconcept
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Pumping system

This is a component that
feeds the machine, raising
the water pressure to 8-9
bar for coffee delivery and
automatic filling of the
boiler.
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Valve group

The valves are devices whose purpose is to ensure the
safety and proper operation of the machine.
11.1

Pressure limitation safety valve

The pressure relief valve guarantees that the pressure
in the boiler does not go above 2 bar. If there is a
malfunction, the capacity of the valve is such that it can
eliminate all the excess pressure from the boiler.
11.2 Expansion valve- non-return
valve
This is a valve consisting of an expansion
valve and a non-return valve.
Expansion valve (1): the cold water sent
from the pump to the heat exchangers
is heated. This heating causes an
increase in the volume of water.
To limit pressure increases in the
hydraulic circuit, the valve limits
the maximum internal pressure of
the circuit to 12 bar.
non-return valve (2): Its function
is that of preventing the back flow
of water from the exchangers in
the hydraulic circuit.
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12
The electronic control unit is the nerve centre of
the machine. It monitors and controls all
operation of the unit.
The information related to the installed
software (date and version) can be seen on
the display when the machine is turned
on. The monitoring and control of the
entire functioning of the machine.
The information concerning the
installed software (date and version) can
be seen on the display when the machine is turned on.
!
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The thermostat allows you to avoid damage to the
electrical resistance in case of lack of water in the boiler.
The thermostat bulb (7) is located inside a sheath (8)
placed at the center of resistance. The contacts of the
thermostat (9) are connected to the electrical resistance
(10). If the electrical resistance is exposed due to failure
to load water to the boiler, the temperature of the
resistance increases dramatically. At this point, the
1
thermostat interrupts the power supply to the resistance
thus preventing damage.
2
9
!

Electric control unit

DATI
REGISTER RESET
When the software is updated, as soon as the
machine is started the system loads the default
data. In this case you will need to set the machine
parameters again.

Thermostat

11
7 10
To reset the thermostat, press the center button
(11). However, before trying to operate the
machine, verify the causes of the blockade of the
water feeding the boiler.
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Technical manual