This machine is tested and works perfectly.
I only used RO water with this machine.
I got a flow control machine and no longer use this unit.
The Expobar Office Control Automatic Coffee Machine is an automated espresso maker featuring a heat exchanger boiler and thermosyphon system for optimum performance and brewing.
The Expobar Office Control is made for commercial quality, easily able to drop a shot and steam milk at the same time.
It features five control buttons, which allow you to program the water volume in both 1 and 2 cup coffees, and the fifth is a manual dispenser button.
Made with stainless steel and a brass with chrome-plating group head, the coffee machine features a quiet vibration pump, 1.
8 litre copper boiler, 2.
75 litre water reservoir, and cool-to-touch steam wand.
The Expobar Office Control Automatic Coffee Machine includes a number of automated features to maintain the machine, including the 3-way solenoid valve which relieves water pressure off the group head when brewing is turned off, the professional grade pressure controller in the boiler and automatic backflush mode.
-An E61 Group head design, made of brass and chrome plated for reliability and durability
-Thermosyphon system to regulate brewing water temperature
-Heat Exchange technology, brew espresso and steam milk simultaneously
-1.
8 litre Heat Exchange copper boiler with dual safety system to switch off the machine when water level is low in the tank or boiler
-Cool-to-touch steam arm, protects from burns while steaming milk
-Programmable 1 and 2 cup volumetric controls, as well as a manual button.
-Mechanical pre-infusion that can be turned on and off
-Automatic backflush mode, just press a button and it will start the pump for a few seconds, turn it off for a few seconds, and repeat approximately 5 times
-3-way solenoid valve relieves pressure from group head when brew switch is turned off, allowing the puck to dry out and be knocked out of the portafilter easily
-Professional grade pressure controller monitors boiler temp and pressure by sensing the pressure in the boiler and turning on the heating element as the pressure drops
-Separate hot water tap and steam wand, mounted on 360-degree ball joint
-Anti-vacuum valve
-Auto refill of the boiler
-Made with Stainless Steel
-Cup warmer – holds up to 14 espresso cups