Iberital 2 Groups - Boiler Safety and Pump Regulation

IBERITAL DE RECAMBIOS, S.A.
2.5.1.- SPRING LOADED SAFETY VALVE
In the case of anomalies in the heating control pressure system the spring loaded safety valve (31),
located on the boiler guarantees the integrity of the boiler by releasing the excess pressure when the
boiler reaches 1.8 bar.
The safety valves are manufactured under strict conditions and respect severe technical criteria, they
are sealed after testing in the factory.
2.5.2.- PRESSURE ELIMINATING VALVE (empty valve)
This valve (32), which is located on the boiler, prevents depressurization inside the boiler therefore
avoiding the risk of liquids being sucked back through the steam jet.
2.5.3.- OPTICAL LEVEL CONTROL AND AUTOMATIC WATER LEVEL DEVICE
48) Solenoid valve
A probe (62) (consisting of a stainless steel rod which is in contact with the water inside the boiler)
positioned the water level in the optical level device (11). The probe is connected to the electronic
control (CPU)(1) signaling a low water level in the boiler. Then, the CPU switches on the pump (29)
and activates the solenoid valve (48), therefore allowing passing water until the correct water level in
the boiler has been reached.
2.5.4.- VALVE UNIT
13) Boiler manual filling button
35) Expansion valve (set to open at approx. 12 bar -/+1)
2.6.- MOTOR PUMP
59) Lock nut
60) Setting screw
Power consumption: 250W. The motor pump turns on when the coffee feed button is pressed,
increasing the pressure to the 8/9 bar required for making the coffee.
The motor pump is also controlled by the level device for the automatic fill-up of the boiler.
To regulate the pressure of the motor pump proceed as follows: release the lock nut (59) which fastens
the setting screw (60), loosen the screw (60) to reduce the pressure or tighten to increase the pressure.
After having finished tighten the lock nut (59).
Página 29 de 30 MANUAL NEW IBERITALINGLES
11/05/2007