Electrician is wrong on at least two things. Single phase is called single phase or maybe split phase regardless of the country. A knowledgeable person does not call it 220 volts. Actually it would be a buck bost transformer. I'd call the manufacturer first then get a better educated electrician. Bottom line you can probably just plug it in.
Attach a MALE 110 VOLT plug to one cord and a MALE 220 VOLT plug to the other. The different connections for LOW and HIGH voltages are made inside the junction box instead of the box on the side of the motor. It has 4 cords; 2 to connect to the motor, 1 for power and 1 for a switch. Then clamp the other ends to the junction box. I want to wire into a single phase supply using a three prong plug. It powers a boiler and water pump (for an espresso machine: 220-240V, 50/60Hz, 0.190Mpa/0.65Mpa, 3000W). The advice I received was to twist the three live wires together and wire them all to the one live prong.From there go to a small, 70A, breaker/load center. That will have two 20A breakers that route down to two 20A 110V receptacles. The 220V receptacle is a 3-prong 50A outlet with only one terminal per wire. Would it be OK to use that receptacle box, assuming it's large enough, as a junction box to tie together the incoming line, 220 receptacle
AFlkDWR.