B18. Production extraction chutes
It is used to remove the soluble product from the corresponding hopper and transferring it to the product
beaters. It features a Mabuchi motor and a gear motor developed by Azkoyen.
B19. Water inlet solenoid valve
It allows water to flow from the water network to the cold water tank. It
operates at 120/230 VAC.
It features a grille to separate the solid elements coming from the hydraulic
network; the normal closing procedure of the EV cuts the flow of water to the
machine. Check that the filter and grille are not clogged by waste.
B20. Volumetric meter
This meter is used to calculate the amount of water driven by the pump
to prepare
espresso coffee.
It features a blade inside, which rotates when water flows through it.
This blade features two magnets, which act on the terminal on the
meter
’
s cover during rotation. The terminal on the cover has three
contacts, identified as the positive (5 VDC), negative and _
П
_. Measuring the voltage between the
negative and _
П
_ terminal when the brewing pump is operating will show a change in the voltage
each time the magnet passes by; the voltage will change from 0 to 5 volts (3.5 VDC when measured
with a multimeter), indicating that the meter is operating correctly.
Motor brand
Mabuchi
Power supply voltage
24 Vdc
Speed of rotation
40 rpm
