6
PRE
‐
HEATER
/
WATER
SUPPLY
GROUPS
The cold water injected by the pump is introduced into the preheater located
inside the boiler, where it is heated by contact with the steam. With this we
achieve a greater stability of the temperature by avoiding the thermal shock
that would occur when entering cold water directly into the coffee group.
The temperature must be between 75 ° C ‐ 85 ° C (167 ° F ‐ 185 ° F)).