Vibiemme Double Domobar Commercial Espresso Machine - V3.5, manual, DB, tank / DC switchable, rotary pump

One has to ask oneself...

• Why pay $6,500 or more for a machine when the Vibiemme Double Boiler can offer similar quality in the cup at a much lower price?
• Why save a few dollars on other double boiler machines to short change oneself on the research and design of the Vibiemme Double Boiler espresso machine?

From October 2009 to March 2011, Vibiemme worked diligently with importers, distributors, and industry professionals to upgrade their Double Domobar double boiler espresso machine. One of the main requirements was to design and build a dual boiler espresso machine that would not have any compromises at 15 amps electrical service when compared to 20 amps. We are proud to announce some of the improvements on the new, redesigned, Vibiemme Double Boiler.

Version 3.5 now has both boilers, coffee and steam, fully insulated. The drip tray cover has been enhanced with a hole to reduce 'splatter' from the 3 way valve extended below the grouphead.

New insulation on V3.5
Coffee Boiler	Steam Boiler

• Double boilers - the user can operate a coffee boiler and steam boiler independently of each other or both at the same time.
• PID (Proportional, Integral, Derivative) - allows user to manage temperature control of the coffee boiler . If you are not sure what PID is, here is an overview.
• Small water reservoir (1.2 liters) - Allows approximately 20 double shots to be extracted without a refill. Refill can occur on the fly while the machine is operating. For those who believe the small boiler makes better coffee because of fresh water displacement, we have a smaller reservoir for the same reason.
• Over pressure valve (OPV) - Feeds excess water pressure to the drip tray and not the water reservoir. This will allow operation of the direct water connection without having the reservoir fill with overflow water which can get moldy and require constant emptying and cleaning.
• Drip tray - Slides out easily to drain out or can be connected to a drain.
  Drain kit included (drain hose can be purchased at local hardware or plumber's supply).
• Insulation on coffee boiler / steam boiler - Helps save energy. The insulation on the coffee boiler also aids in temperature stability for the espresso extraction.
• Only up to 15 amps required without any additional switches or internal adjustments.
• Commercial-grade rotary vane pump with the ability to make a direct water connection or use a water reservoir on the same machine with the movement of a lever under the machine. Includes stainless steel braided hose with 3/8" male thread.
• User programmed offset - the temperature regulation is at the coffee boiler, and the grouphead always has a lower temp. This feature allows the user to program this delta in temperature as every environment has a different offset.

In addition to achieving optimal temperature stability over previous versions, one of Vibiemme's main goals when redesigning their double boiler machine was to keep the amperage requirement below the 15 amp mark - not only making it easier to find a connection in any household, 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 15 amps using 110-120 volts.

• Heavy duty true Vibiemme E61 grouphead maintains active flow of water from the grouphead to the heat exchanger in the boiler.
• Professional grade brass portafilters - one portafilter with single spout and single filter basket and one portafilter with dual spout and double filter basket.
• Coffee boiler capacity / material: 0.5 liter copper boiler - This very small coffee boiler allows quicker displacement of any stale water as possibly found on larger coffee boilers for machines in this class.
• Steam boiler capacity / material: 1.9 liter copper boiler.
• Boiler pressure gauge to indicate steam boiler pressure. The setting can be varied by adjusting the pressurstat - please note the body panel has to be removed as there is a new international safety standard that Vibiemme has manufactured this machine under, and the standard requires that no access port be allowed for changing the pressurstat setting.
• Pump pressure gauge to indicate brew pressure during espresso extraction (reading will vary while not extracting).
• Multi-directional stainless steel steam wand on left side can be moved in different directions.
• Multi-directional stainless steel hot water wand on right side can be moved in different directions.
• Power light on right side indicates when the machine is powered on.
• Heating light on left side indicates when espresso machine is heating.
• Water light in middle indicates when water level in water reservoir in rear is low.
• Three stage power switch allows user to operate espresso machine with coffee boiler only, with steam boiler only, OR with both boilers simultaneously (awaiting confirmation once shipment arrives).
• Jeer pressurstat monitors boiler pressure in steam boiler.
• Extremely large stainless steel drip tray which can be easily (slides out with pull of handle) removed for cleaning. Grate stays on machine when pulling out drip tray so that it is one step removal to empty.
• GICAR branded electronic water level control reacts to a .02° C of temperature change in the coffee boiler.
• Rotary vane pump and commercial-grade motor is quieter than a vibration pump, but it is more expensive to replace. Hence, descaling is important.
• OPV (over pressure valve opens when too much pump pressure exists) located in rear of machine with easy access when body panel and six (6) associated screws and divider are removed. Although the pump has an adjustment screw for regulation, the OPV is an additional feature to manage overflow that may be caused by overpressure from the water company when the machine is plumbed in.
• Accessories: Single spout portafilter, single dose filter basket, double spout portafilter, double dose filter basket, blind filter basket for backflushing, plastic coffee scoop, and a common useless plastic tamper (please make sure to order a good tamper).
• Made in Milan, Italy.

• Measurements (approximate): 16.5" H x 10.6" W x 21.0" D.
• Shipping weight: 84 pounds - dimensional box weight for shipping due to box size: 100 pounds.
• Power: 110 volts (only, 220V not available), 1600 watts (regulated between both boilers), 15 amp (maximum needed).
• Water reservoir capacity: 1.2 liters (approximate).
• Product Safety Listing: Commercial UL Listed - This machine is not NSF listed for facilities that require NSF by their local health department.

1. Printable manual can be found here.
2. We have decided to NOT offer no-burn steam wands because the typical internal diameter is about 50% less than a normal steam wand, and this usually affects performance times in steaming. In addition, the grouphead has a much greater area to get burned.
3. When in direct connect mode, there is a screw in the water tank plate that the user can tighten to hold the plate down so the switch is activated to make the machine think there is water in the reservoir.
4. Water line pressure should be regulated to be between 35 and 40 pounds for proper operation of this machine. Check with your local plumbing supply to advise on purchase so as to meet any local building codes. In addition, check with them about your local building code may require a backflow preventer (which does not allow boiler water to backflow into water supply).
5. Direct water connection requirement: connection must be made to a cold water supply line only.
6. Sorry, 220-240 volt units are not available for ordering.
7. Although you can read some older reviews of older Vibiemme models here, we cordially invite you to post a new review for us here!
8. Technical Information.

1. Backflushing: This machine should be backflushed minimum once every 50 espresso extractions using Ascaso Detergent (our instructions included with purchase). This is only for cleaning the oils from the grouphead.
2. Descaling: This really is for internally cleaning of the machine. Recommended using Ascaso Descaler. Once every month for coffee boiler, and once every 3-6 months for the coffee boiler. However, it can be more or less time depending upon the amount of magnesium and calcium is in your water, how often you use the machine, and how much time you leave the machine powered on each day. Join our email list to get monthly reminders on how to descale the different machines we sell.
3. Water connection at bottom of machine is in the back left corner ~2" from the rear and ~5 inches from the left side panel. The water connection elbow under the machine is 1/4" male thread. The included stainless steel braided hose, is 46" long and has the female fitting to connect to the water connection elbow. On the opposite end of the braided hose, there is a 3/8" female thread fitting. It is best to purchase the V319 coupling on our web site to attach to your water line, and then attach the braided hose to the V319 coupling. This Vibiemme model has the capability to drain or not to drain. There is an included plug on the back of the drip tray. The plug can be removed or installed as desired. The machine's drain pipe can be manually directed to drain either to the right or left side of the machine. In either direction, the drain pipe can be angled 4" from either side. The included drain hose is 46" in length and has a 1/4-3/8th inside diameter which slips onto the machine's drain pipe. The drain hose needs to drop vertically 1" for every 12" it goes horizontal.