VIBIEMME Domobar SUPER Double Boiler Version 4.0 Rotary Pump Plumbed In/Tank Espresso Machine

DISCONTINUED - SEE NEW 2020 VERSION

Version 4.0 now has:

Both coffee and steam boilers are fully insulated.

The drip tray cover has been enhanced with a hole to reduce ‘splatter’ from the 3 way valve drain

the pressurestat has been replaced with a Temperature Sensor controlled by the PID

Manual Lever 115V
Rotary Pump Plumbed In/Tank

Accessories: Single spout portafilter, single dose filter basket, double spout portafilter, double dose filter basket, blind filter basket for back flushing, grouphead cleaning brush, plastic coffee scoop, and the useless plastic tamper that many manufacturers include (please make sure to order a good tamper).

Stefano’s Espresso Care has worked with Vibiemme and the main importer for the USA in the past year to upgrade the Double
Boiler line. We are proud to announce some of the improvements on the new, redesigned version of the Vibiemme Double Boiler.

In addition to achieving optimal temperature stability, one of Vibiemme’s main goals when redesigning their double boiler machine was to keep the amperage below the 15 A mark—not only making it easier to find a connection in any household without needing a dedicated 20 amp circuit, but also to keep energy consumption at a minimum. Thanks to an innovative method of controlling the percentage of power to the heating elements, Vibiemme’s Power Management Control System (PMCS) automatically regulates variable power to each heating element. The total amperage draw of the machine will never go over 15A.

Three stage power allows the user to operate the espresso machine with the coffee boiler alone, or the coffee and steam boiler together.

1 Domobar super 2B technical details – although it is still considered the 2011 version (version 4.0 as in August 14th 2014)

1.1 Coffee boiler technical details:

• Coffee boiler: .5 lt
• Coffee boiler element: 600 + 300 w
• Thermal insulation
• Working temperature : 93 C° (200 F)
• Safety Thermostat 110 C° (230 F)

1.2 Steam boiler technical details:

• Steam boiler: 1,9 lt
• Steam boiler element: 1000 w
• Pre-heating exchanger*: 45 ml ( approx. a double espresso)
• Steam boiler temperature and pressure is regulated by the PID controller
• Thermal insulation
• Working Pressure: 1,2 bar
• Safety valve working max. pressure: 1,5 bar

*Inside the steam boiler’s lower part, there is an exchanger which pre-heats water for the coffee boiler: water outlet temperature 97°C (208°F) for pressures higher than 1 bar.
1.3 Electronic box and Gicar probe:

• Setting: 1°C or 1°F
• Probe sensitivity: a tenth of C° or a tenth of F°
• Stainless steel probe

1.4 PID Setting:

• temperature: 200°F
• P: 1.0
• I: 0.00
• D: 0.5
• Offset: 19°F

1.5 Fresh water supply configuration:

• The machine has a dual water-supply system. From the water reservoir or from an existing water line (both through a rotary pump). A mechanical switch located under the machine allows the end-user to choose how to draw their preferred method.

1.6 Waste-water drainage system

• The machine has a dual drainage system: the end-user can drain the waste water in the drip tray, (and manually empty it out) or connect to an existing drain system.

2 Thermal stability trial of the Domobar Super 2B: tools, procedures and validation.

Important: What is thermal stability ?

Thermal stability is the most important data on a coffee machine; it is the difference among the maximum temperatures recorded in a shot sequence.

Differences between 2C° and 3C° have to be considered as acceptable, between 1C° and 2C° good, below 1C° excellent: these values create the thermic stability range, which depends on the manufacturing features of the machine.

2.1 Tools:

• Thermal stability values can be detected through a measuring instrument for temperatures (SCACEII), placed at the group exit, following the WBC testing pattern.

2.2 Procedures: the trial was made referring to the WBC testing pattern