Victoria Arduino White Eagle Digit

White Eagle Digit is Victoria Arduino's heat-exchanger machine, in 2- or 3-group configurations. A single boiler feeds a heat exchanger for each group: milk froths while the coffee is pulled. Boiler pressure is set by a digital pressure switch. A level probe keeps the water in the boiler constant.

The connection is fixed to the mains, not a tank: the maximum allowed hardness is 50-60 ppm, with a softener and mesh filter on the inlet. A manometer shows the pump pressure while brewing. The steam wand is manual: milk is frothed by hand.

The group is washed daily with a blind filter and a specific powder detergent, and the stainless shower plates under the groups are cleaned weekly; the softener's resin needs periodic regeneration to keep limescale out of the boiler and exchangers. It's a deep machine, for professional rather than home use, with a three-phase supply suited to a commercial venue.