Espresso machine voltage conversion from 110V to 240V - Page 2

[GB]

I may be wrong but if the boiler pressure is controlled by a pressure stat then the "frequency difference" should not effect the pressure because the p-stat turns off the power when the boiler reaches the p-stat setting.

To make certain I have emailed someone in "Down Under" who should have the answers to your questions. I will keep you informed.

Cheers
Geoffrey

[djmonkeyhater]

I don't know what kind of pressurestat you have but the Sirai pressurestat is a big, mechanical switch and not affected by Hz or polarity. It's action is regulated by the pressure in the boiler and all that does is open and close the circuit. The ones that I have used are rated for 100-240v so it should "go both ways".

I hope that this works out for you. If not, it seems like there are a lot of enthusiasts in Oz, so you could consider it an opportunity to get a cool new machine that we don't have in the USA.

[HB]

Would you expect the pressure to be linearly proportional to the frequency difference (ie 50/60=~17% less)?

Since that's how fast the little piston goes back and forth, yes, the maximum pressure and ramp up times should be directly proportional. I think you'll have enough margin. Have a safe trip and let us know how it works out.