Wiring Vintage 220V 2000W Swiss Espresso Machine for US 240V Outlet in LA, CA

Hello everyone. I am new to your forum & so far love it. I am not an Elect. Engineer, and after searching & googling endlessly, i humbly ask for your advice and assistance. I am in LA, CA, USA, and i purchased a vintage 1970 espresso machine from Switzerland (we’re huge coffee drinkers). The machine is 220v, 2000watts, no chip or pump, and after speaking with the technicians of the manufacturer, they recommended i not convert it to 110v, rather, attempt to install it as a 220v machine. The 50Hz is not an issue with this simple machine. As the plug in europe is 1-hot (220v) + 1-neutral, i have read different ways on how to wire it using our USA two hot 110v wires from my kitchen’s unused 50 amp receptacle. Do i A-combine the two 110v hots with the machine’s hot wire, then my neutral with the machine’s neutral, or do i B-just connect 1 hot 110v to the machine’s hot wire , then the 2nd hot 110v hot to the machine’s neutral wire? Lastly, the current kitchen stove breaker (now unused) that i will use is rated at 50amps so i plan on changing it, to which amperage breaker? Looking forward to all the pros advice. Thank u,espresso gerry

If you have no experience, then don't try and sort this out yourself, call in an experienced electrician, or you could end up killing yourself,
cheers,
Richard

Thank you. I am not trying to sort this out myself; hence, my post here for the pros. My ‘Licensed’ electrician (30+ years experience) didn’t know how to plug it in. Can an Electrical Engineer on this forum lend a hand please, have any suggestions? Grazie mille.

Since there are many different configurations for house wiring, and there is no information on the wiring configuration (schematic for example) of the coffee maker, it would be very risky to offer advice on this matter.
As I said, you really do need a competent electrician, since the work needs to be done safely and to appropriate standards. At the risk of repeating myself, I would suggest that you find an electrician who is able to figure it out, sorry, but that is my honest opinion.
cheers,
Richard