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Converting a Silvia/Rocky from 220V to 110V

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  • #16
    Re: Converting a Silvia/Rocky from 220V to 110V

    silvia

    48 watt pump + 1100 watt element = 1150 watts total consumtion at 230volt

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    • #17
      Re: Converting a Silvia/Rocky from 220V to 110V

      Originally posted by fix link=1194419728/15#15 date=1206956906
      silvia

      48 watt pump + 1100 watt element = 1150 watts total consumtion at 230volt
      Thanks fix. I couldnt believe I did not bother to add it up and round it off. ;D

      That means Silvia is drawing just 5A.

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      • #18
        Re: Converting a Silvia/Rocky from 220V to 110V

        Thanks for all those who replied. Ive gone back to the manufacturer to get some answers.

        Is it worth it swapping the 3KW voltage regulator (uses servo) instead of the converter (uses relay)? Ive never had experience with this as Im more familiar with isolation transformers which are quite heavier I think compared to this electronics-based ones.

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        • #19
          Re: Converting a Silvia/Rocky from 220V to 110V

          might be cheaper to convert the machine to 110v

          element / boiler, pump and probably temp cutouts would need replacing

          switchs and wiring might be compatable

          depends on how long you intend to stay and how much bench space to fit the transformer

          graham

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          • #20
            Re: Converting a Silvia/Rocky from 220V to 110V

            Originally posted by fix link=1194419728/15#18 date=1207071583
            switchs and wiring might be compatable
            Doubt that the wiring would be up to scratch, to the boiler element anyway. 110V AC supply with a similarly rated element would draw more than double the current of a 240V AC element. The Pump would require changing too (at least the coil) and the various indication lights, etc may be so dull as to be almost indistinguishable from the On or Off state.

            The simplest option all round would be to just acquire a suitably rated 110/240V step-up transformer or see if you can get a power point wired from your fusebox as a straight 220V AC outlet. Javaphile has mentioned a few times that a lot of houses in the States (and Canada?) use a 220V circuit to feed the stove so as to reduce the current draw, wiring size and voltage drop. Might be worth checking out.....

            Cheers,
            Mal.

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            • #21
              Re: Converting a Silvia/Rocky from 220V to 110V

              Originally posted by Mal link=1194419728/15#19 date=1207119011
              Javaphile has mentioned a few times that a lot of houses in the States (and Canada?) use a 220V circuit to feed the stove so as to reduce the current draw, wiring size and voltage drop. Might be worth checking out.....
              Frequently there is 220V available in the laundry room, for the clothes dryer, as well.

              Jim

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              • #22
                Re: Converting a Silvia/Rocky from 220V to 110V

                re switches and wiring

                the switches in the rancilio are 16a @ 240v ac and
                20a @ at 125v ac

                the neon, Boiler / element, cutouts and the solenoid coil for the 3 way would need to be replaced

                the wire size is 18 awg 600v 105*c
                as they are sold all over the world it would make sense to use the same wire size for all.

                the cost of making two harnesses would probably out way the saving in material cost

                if you emailed Rancilio im sure they would give you the correct details

                graham

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                • #23
                  Re: Converting a Silvia/Rocky from 220V to 110V

                  Regardless fix,

                  Makes a lot more sense to keep things simple..... 220V supply is normally available and in that case only requires a power-plug change. Also, I never make assumptions where electricity is concerned, not worth the risk,

                  Mal.

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                  • #24
                    Re: Converting a Silvia/Rocky from 220V to 110V

                    Thanks to all you guys who replied.

                    Ive got my replacement voltage regulator (step-up/step-down) and now Im using it on the second day. Ive left it on overnight just to do a "burn-in" of some sort. What I hate with this servo-type voltage stabilizer is whenever the PID kicks-in, I can see it dropping voltage whilst it is drawing current (approx. 10A) so you can hear it when it tries to dial-in back to the setpoint voltage of 230V. Is this normal?

                    So far, it seems to hold-up. No burned-wires or fuse. Hopefully, it was just a defective one they gave me the first time.

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