I have a customer who has bought a 220v 3 phase heat pump. I have never come across 220v 3 phase and I have spoken to a few electricians who know nothing about it either. Other than using some sort of transformer/converter surely it is not possible to use this in this country(ENGLAND). Has anyone else had any experience with 220v 3 phase rather than 415v 3 phase. There is also no neutral on the Heat Pump. I think these are perhaps for the European/American market and he has been sold the wrong unit. Thanks