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  1. I

    3 phase motor on single phase supply.

    Better contact the DNO then :lol:
  2. I

    3 phase motor on single phase supply.

    PaulNorris, a single phase motor is not that expensive and may be the right solution but this is a useful thing to know for me as i will probably be buying some other 3 phase kit soon like a power hacksaw and a planer thicknesser so i am now confident that i can run these things without the need...
  3. I

    3 phase motor on single phase supply.

    p.s. Jackrae, i don't know how to p.m. but i would like an auto start circuit.
  4. I

    3 phase motor on single phase supply.

    i've got a 3hp compressor as well and i've never known of my neighbours having voltage issues. then again my neighbours have got 3 phase supplies. and if we're showing off i've got 2 welders and a plasma cutter! those videos were very useful and have definitely shown it can be done quite...
  5. I

    3 phase motor on single phase supply.

    i envy your box of caps. i collect as much 'scrap' as i can and i've got a fair bit, although i refer to it as 'useful salvage items' to other people but i don;t have anything in the way of caps sadly. i could nick the caps off various motor driven things like my compressor but i would be...
  6. I

    3 phase motor on single phase supply.

    i'd love a variable speed drive but the application doesn't really call for it and i suppose what it boils down to is that i can replace the 3phase motor with a 1phase for about 120 quid but if i could buy a couple of capacitors for 10 quid each and run it without problems i would be happier and...
  7. I

    3 phase motor on single phase supply.

    hi and thanks for the reply. yes it is with a view to actually doing it. it's a 1.8kw and it's got all six ends of the stator coils available. i don't really want the added hassle with a pony motor or the expense of buying an invertor so i am going with the capacitors/inductors route...
  8. I

    3 phase motor on single phase supply.

    hi all. i've read several things saying this (title subject) can be done with capacitors but with a certain loss of power. having said that, the information mostly seems to be american and there are often references to '2 phase power'. at first i assumed it was a mistake on their part...
  9. I

    thermal store/rayburn what else do i need?

    thanks for your advice, i am now watching a couple of 28mm 3 port valves on ebay.
  10. I

    thermal store/rayburn what else do i need?

    ok, so there would be a normally closed contact that normally allows the controller output to supply the CH pump through it. the dhw pump output from the controller then comes alive and energises the relay which physically disconnects the controller from the CH pump. the motorised valve...
  11. I

    thermal store/rayburn what else do i need?

    thanks for the good ideas simonh2. i am dealing with a previously installed situation and trying to re-use whatever bits i can sensibly use to achieve my desired result and that puts constraints on my designs. basically i don't want to spend thousands on a system that will take forever to pay...
  12. I

    thermal store/rayburn what else do i need?

    sorry for resurrecting but now i do want to redesign the viessmann system a little bit. i haven't got round to implementing the heat store plan yet but i am going to move my dhw tank in preparation and rather than double up the heavy pipework installation from the boiler to the new tank position...
  13. I

    viessmann tank

    major thread resurrection... but i am going to move my hot water cylinder. i mean it this time. i have made do for a couple of years with fitting a 15l electric unit nearer to the points of use which has worked fine but now has sprung a bad leak. i could either get a new one or move the main...
  14. I

    thermal store/rayburn what else do i need?

    it looks like the unvented cylinder/motorised valve combo is one of their products or is it possible to use an existing unvented cylinder?
  15. I

    thermal store/rayburn what else do i need?

    mowbrayfireplaces, an xcel heat bank would require me to keep it constantly hot to ensure a hot water supply so it's not suitable for my needs unfortunately, and it probably costs a fair bit.. mysteryman, i agree with you but i will be keeping adolf and all his associated equipment. the...
  16. I

    thermal store/rayburn what else do i need?

    Just to press you all a bit for more answers, can anyone tell me whether the separate dhw tank being heated via a coil is sensible? i have seen lots of examples where the mains cold water runs directly through a coil on the thermal store but that would only work if the store is kept up to a high...
  17. I

    thermal store/rayburn what else do i need?

    i see your concerns but i am keeping adolf for heating both the dhw and rads whenever its needed but it won't be heating the thermal store. the store is only there as the rayburn needs to be non-pressurised and it also makes adding solar easy. i cannot let your last statement pass without...
  18. I

    thermal store/rayburn what else do i need?

    ha! all advice is appreciated but let me tell you how things are at the moment: the previous owner fitted the viessmann and it's dhw vessel in a outbuilding and, to be fair Mysteryman, it is good apart from it's expensive to run and arrogant. Dcawkwell, electricity is maybe a bit cheaper...
  19. I

    thermal store/rayburn what else do i need?

    thanks for that, that is a useful link but i was looking at the set-ups they have on their website and they are different to mine in that i want to have a separate dhw cylinder, partly because i already have a good quality cylinder to use. the main reason though is that i want the hot water to...
  20. I

    thermal store/rayburn what else do i need?

    Hi to all you, i am planning to install a thermal store which will work in conjunction with my rayburn and oil boiler to heat the DHW and maybe some rads. the current DHW vessel is pressurised but i know the rayburn shouldn't work with unvented systems so that's why i am thinking the thermal...
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