Search results

  1. D

    Transformer for US inductive load appliance

    Having tested OK with a yellow site transformer that I hired I wanted to set up a more permanent solution. Saw on Farnell a toroidal transformer 650VA for £33 which seemed a good deal VTX-146-625-155. http://www.farnell.com/datasheets/1661839.pdf Plan to put this in a metal box and wanted to...
  2. D

    Transformer for US inductive load appliance

    Changed the capacitor (I'd already ordered from RS so just had the one) and it lives ! Does anyone know what the white stuff is that looks like silicon sealant and is between the capacitors - should I refill the gap ?
  3. D

    kettle element heat control

    If you google DIY sous vide you will see a lot of projects involving a PID controller to hold a water bath at a precise temperature. I got a PID unit from ebay for £32 including temperature probe and a solid state 25A relay. Put this in a box from Maplin or RS components and use it to control...
  4. D

    Transformer for US inductive load appliance

    That's why its 124 not 144 - I was taking that effect into account (honest :lol: ) This is the reverse: Another thought I had - the mains input only powers this SMPS and then via a 12V relay the pump. If the SMPS board could handle 240V then I was thinking I could maybe insert a 500W...
  5. D

    Transformer for US inductive load appliance

    Thanks for the tips. Pardon my lack of knowledge but which would the bleeder resistor be ?
  6. D

    Transformer for US inductive load appliance

    Yes, I should have realised that when you look at other 1000+ W voltage converters they are much bigger and cost more than £15. Problem was we already had this cheapo one and I had forgotten/lost the instruction manual. I am hoping to just solder in a new 220 uF capacitor tomorrow from RS...
  7. D

    Transformer for US inductive load appliance

    Pushed submit to early when meant to prview - have now added a bit more detail. Re the Hz - well it does have a motor with a capacitor. The motor plate says 110 V 60Hz 310 W 1.5 A and so does not mention 50Hz compatibility. However, the start capacitor is 38uF and does have 50/60Hz on it. The...
  8. D

    Transformer for US inductive load appliance

    This is a bit of a saga so I'll start with the short question and then for those who would like the background carry on a bit: I have a Vacmaster VP112 vacuum chamber sealer US version 110V/60Hz 600W. I have blown it up using a voltage converter that I now realise was crap. :oops: I am...
  9. D

    pressure relief valve - which washer where

    PS. do I need to stick PTFE tape anywhere as well ? (sensible answers please !)
  10. D

    pressure relief valve - which washer where

    Pressure relief valve needs replacing on Worcester Danesmoor 15/19. I have removed the old one and have the new one in front of me, but it comes with two different washers and I am not sure which to use where. One washer is red and looks like a tap washer I have seen before. The other is...
  11. D

    underfloor heating without ripping up tiles

    There is one tee on the tr flow and one on the tr return. Then from these tees I am running 15mm pipes with tees off them for the floor loops. In effect this is splitting a branch off the tr circuit and using the two port valve tobturn it on and off and gate valve to regulate it's flow.
  12. D

    underfloor heating without ripping up tiles

    That is what I am doing though ? The existing f&r still go to tr and I have put a tee into both of them(or am about to today when I get started). Have also planned to put a gate valve after the 2 port valve so I can control flow rate in underfloor part. I guess this is like balancing...
  13. D

    Filling loop and pressure reducing valve

    Thank you Charnwood. The water outlet is a 15mm quarter turn ball valve. One end is compression fitted onto a copper pipe connected to mains cold water supply. The other end is what the wing nut of the filling loop screws onto. What I had not realised is that the thread on 1/2 BSP tap...
  14. D

    underfloor heating without ripping up tiles

    Have now commenced this and am teeing off from an existing flow and return for a towel rail in 15mm copper, passing it through a 2 port valve connected to a wireless thermostat in the bathroom, and running 10mm copper branch loops off the 15mm. I was wondering if I need to include any air...
  15. D

    Filling loop and pressure reducing valve

    Sorry for being dim and providing such amusement, but a nut and an olive is not really good. I want to be able to detach the loop easily to use elsewhere without needing a spanner. The existing loop terminates in a wing nut. By screwing the PRV into this wing nut I am left with a male thread...
  16. D

    Filling loop and pressure reducing valve

    It's really just a question about fittings and sizes: There is a 15mm copper pipe supplying mains cold water. At end of this pipe is a quarter turn valve with a threaded male connection. The filling loop has a handnut that screws onto this valve. I want to add a pressure reducing valve...
  17. D

    Filling loop and pressure reducing valve

    I am not confusing them. I am talking about a pressure reducing valve and how to fit to a filling loop. There is no leak to fix - I am draining the system to add a new branch. There is already a cold mains pipe with a valve on it. The filling loop screws onto thus valve and other end screws onto...
  18. D

    Filling loop and pressure reducing valve

    To aid refilling the system without having to keep going outside to boiler, then back in to bleed, etc I want to add a pressure reducing valve to the filling loop. I am wondering what sort of coupling would be needed - the PRV's I have seen are 15mm compression fittings. I am guessing one end...
  19. D

    dry white residue

    it was on the control panel, but in the end I got a new control panel for about £100 in 2006. DW is still going strong and it will be 13 years old on Monday !
  20. D

    replacing/repairing oil pump on oil burner

    OK thanks for the advice. I think I'll get the spare pump in and if/when the existing one fails do the swap over myself and then get the oftec guy to come and service it and check the settings.
Back
Top