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  1. W

    Delay on UFH Pump

    Hi All, I'm installing a building management system in a domesticproperty with UFH and sorting out the temporary lashed-in control system. Somewiring centres (like the Emmetti) have a manifold pump delay, and some like theheatmiser don’t. Is it essential to have, or can a Grundfos UPS2 pump...
  2. A

    air-water heat pump - any good experiences / recommendations?

    Worcester has got me interested in finding out more about an air-water heat pump. Needs to be suitable for a property with 200m2 total floor area. Does anyone out there have any good experiences or recommendations?
  3. A

    Pump float switch

    Diagram attached shows what I believe could work for a well pump used on a farm. Basically the pump has been burning out and I have found the cause, its because they turn the pump on then forget and the water runs out in the well thus its dry pumping. So i was thinking of introducing this sort...
  4. C

    air source heat pump problem

    Recently notice a drop in performance of one of my heat pumps used for heating hot water. The normal temp rise through the HP is around 8 degrees C but has recently dropped to around 3 degrees C. The pressure guage shows approx 100psi with the HP OFF rising to approx with the HP ON but I don't...
  5. M

    sockets behind a bar for pump illumination

    anyone know of any regs stipulating requirements for positioning of a socket behind a bar for a pump illumination to plug into?...sockets are RCBO protected...thanks
  6. J

    Fuel pump power supply problem.

    Trying to get a 2001 Renault Clio started but the fuel pump won't run. When I turn the ignition on I can measure 12v for a second or so at the fuel pump plug. But the pump doesn't prime or do anything. I believe it should run the pump for a second or so to pressurise the the fuel rail, and...
  7. V

    air source heat pump - forward planning for cables to install

    hi I have wired up various central heating systems, y-plan, s-plan, under flooor etc . but i will be doing an air source heat system. They have not yet purchased the pump, but i am on with first fixing and i am wanting some advice on what cables are needed before any of the plans / instructions...
  8. V

    air source heat pump, forward planning for cables to install

    hi I have wired up various central heating systems, y-plan, s-plan, under flooor etc . but i will be doing an air source heat system. They have not yet purchased the pump, but i am on with first fixing and i am wanting some advice on what cables are needed before any of the plans / instructions...
  9. the pict

    Pump question

    Should the CH pump run constantly, my own one does, but a customer asked the question, its a oil fired combi, I wired the controls and the plumber signed it of as ok perhaps the client is just a wee bit anxious Pict
  10. B

    Rcm1 pump wiring

    Hello, I'm seeking some advice please. I'm swapping a like for like ? Salamander RCM1 pump. As the photos illustrate, the original pump has wired in two separate terminal blocks, one to the pump and one to a fused connector box 12 inches away. The replacement pump came wired as shown, pre wired...
  11. A

    Grundfos Magna 1 Dual head pump controls

    Hi Guys, I am replacing an old Grundfos 200 series twin head pump with one of the new fangled EUP ones, now the old ones had terminals T1 and T2 which was an on board thermal overload so you could hook it up to a plain contactor control circuit, now looking at these new ones its like Concorde...
  12. S

    Demand of Solar Irrigation Pump is increasing in Bangladesh

    Irrigation is one of the major part of Bangladesh economy. In most of the area Farmers don’t have the access to grid electricity for well pump so demand of solar powered well pump is increasing. Currently, there are almost 1.61 million irrigation pumps running in the country, of which 1.34...
  13. C

    12V water pump

    Hi All, I've just purchased a 12v Water pump for my van. 12V 100PSI 4L/Min High Pressure Diaphragm Water Pump FOR RV /CARAVAN /BOAT | eBay What's the best way to install this? I want a switch at the back of my van I can use to turn it on and off i.e. a standard "switch". 1) How do I...
  14. A

    Well pump burning out

    Hey folks just wondering if any of you could give a possibility in what is happening. basically i have some family in the middle east they moved their for quite some time now. The power in this country isnt really stable for example it keeps turning off maybe twice a month thne when it comes...
  15. L

    Please help! Boiler ch pump always on!

    Hi ive recently moved into a new home with a combi boiler witch has underfloor heating downstairs and rads upstairs The ch pump on the boiler seems to be always on and cannot seem to turn it off even when the programmer is set to off for the upstairs heating and the controls for the ufh are...
  16. L

    Advice needed on a sewage pump

    Hi all go easy on me now! Basically at this factory Iv started to do some maintenance for we have got a 3 phase sewage pump,with two float switches and a alarm float switch. this is a new install as such, an electrician prior to me has run the cables for the pump and float/alarm On the...
  17. S

    bore hole pump

    hello I have a problem with a 230v bore hole pump 1st pump stopped working pressure switch working ok contactor coil pulling in pump not working . voltage at both start and run side. replace pump with spare (not new but apparently tested and ok) try again pump not working then after trying to...

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