1ª 10012 - E 02 - 2006
21
M1. Solenoid
M2. Valve
M3. 3º outlet
When the machine is in the espresso coffee making process, the third is closed while the
outlet from the boiler and the inlet to the infusion element are open to each other.
N1. 3
rd
closed
N2. To the infusion element
N3. From the boiler
When the machine finishes elaborating an espresso coffee, the EV goes to rest state and
closes the outlet from the boiler leaving the infusion element open to the third outlet. In this
way the water that did not pass through the coffee and was retained in the infusion element
goes out through the third outlet to the residue bucket.
The water recedes back from the infusion element towards the third outlet because of the
pressure it was submitted to by the pump in the infusion process.
P1. 3ª open
P2. Infusion element joined to atmospheric
pressure
P3. Boiler water closed
The other two outlets are connected to the instant beverage EV. When the machine is at
rest, these outlets allow the circulation of water, through convection, between the boiler
and the brass support of the instant beverage EV. This way the support is thermo
compensated and the water that reaches the beaters is always at the correct temperature.
Summary of Contents for Tempo LE
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