Iberital IB7, Installation And Operation Manual, Page: 117 / 443

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115 INSTALLATION AND OPERATION MANUAL
3.6.2. Spring-loaded safety valve
In the case of irregular operation in the control of heating elements, the safety valves guarantee the integrity of the boiler,
releasing excess pressure and keeping it from going over 0.18 MPa.
The safety valves are manufactured under strict quality control standards and following very demanding technical
criteria. Once checked by the manufacturer, they are immediately sealed.
3.6.3. Pressure relief valve (anti-vacuum valve)
This valve, located on the boiler, prevents the depressurization of the boiler interior, keeping liquids from being sucked
in through the steam ejectors.
3.6.4. Automatic water filling device
a) Solenoid valve.
The machine has a level sensor (a stainless steel strip that is in contact with the water inside the boiler). The sensor is
connected to a control processing unit (CPU) which permanently indicates the water level. When the level is low, the CPU
activates the pump and the solenoid valve, allowing water to be fed in until the sensor indicates that it has reached the
optimum level.
3.6.5. Visual level (Optional)
a) Level (visualization of max. and min. levels for the boiler water).
The water level can be checked at any time via the water level viewer.
3.6.6. Flow control valves
a) Expansion valve (crucible for opening to 1.2 MPa ±0.1).
3.7. PUMP/MOTOR
a) Lock nut.
b) Adjustment screw.
The pump/motor starts up when any button on the button pad is pressed, increasing the pressure up to the 0.8/0.9 MPa
necessary to prepare the coffee. The pump/motor are also controlled by the automatic level control device, which keeps
the boiler filled with water.
In order to regulate the pump pressure, proceed in the following manner: loosen the lock nut, which holds the adjustment
screw. Loosen the screw to reduce the pressure, or tighten it to increase it. When the operation is complete, make sure
the lock nut is tightened once more.
3.8. CONTROL PANEL
It is the control centre of the machine. It controls all the sensors and operation elements for the correct functioning of the
machine