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pump

  1. pinkman

    Are pump types interchangeable?

    Hi there good people. I have a small issue, I've incorrectly connected a connecter on the PCB of my old boiler back to front, and seem to have broken my pump, since learning my mistake I have put it the right way, it is drawing out about half the current it should. To keep a long story short...
  2. F

    Advice on pump settings

    Hi All, Fitted a willow Yonos Pico pump 25-1-6-130 after the advice on here. What I'm confused about is the pump needs to be set for head at either. 1-4 mtrs or 1-6 mtrs (see below attachment) my system has 8 radiator's and is a closed pressurised system. I worried if I pick wrong setting I'll...
  3. F

    Heating pump recommend

    Hi All, Pump gone on my parents heating system it's a Grundfos 15 60 130. New one best part of £300 is there any other makes you guys would recommend? Thanks
  4. J

    Pump running but no power to boiler

    On a breakdown which is stumping me. The boiler has no power to it even though everything else in the system is working as it should. The 3 way moves across when it should and kicks in the pump but there is no power on the wire entering the boiler.
  5. T

    Monsoon twin pump installation - wrong pump?

    My house was a bungalow that was extended up into the roof, and a bathroom installed up there. The hot water cylinder remains on the ground floor. The mains water pressure is low. A Stuart Monsoon U3 dual pump was installed to pump both hot and cold. I am thinking that this is the wrong type of...
  6. R

    Can anybody advise me on the dissassembly of a Grunfos Magna1 pump ?

    Hello, I have a Grunfos Magna 1 40-120 F pump which starts making a nasty noise after some time running. I would like the dismantle the impellor area of the pump to inspect the bearing surfaces of the rotor. However, I can't seem to see the way to extract it from the pump head. Can anybody...
  7. J

    Pipe size for heat pump system

    I am sizing the central heating pipes for a complete replacement. The property has an elongated floor plan so I have used a piping layout consisting of single flow and return headers running the length of the property and take-offs to and from radiators. Currently there is a combi boiler...
  8. J

    Help me understand this pump curve

    This pump curve is from a combi boiler with an internal automatic bypass valve. Why is the maximum flow obtained with the bypass valve in the middle position? Shouldn't a fully closed bypass valve result in a higher flow through the main circuit? Also, any idea what 'V1' and 'V2' mean (no...
  9. C

    what is this part called ? reillo g3b oil pump

    got new oil and tried to start my reillo g3b oil burner ,when it idnt fire and went to lockout i bleed the pump and check the nozzle ,and eventually took apart the pump to find lots of black oil slug around the oil pump.so i cleaned all the stuff of and cleaned through the pump and the only...
  10. Sparkgap

    What's better than one pump?

    Went to a small hotel we put new boilers and cylinder in last year as they were complaining about no hot water and heating on the top floor. I should add that's all we did as I thought the existing systems needed total ripping out and starting again but they didn't want to spend the money. Hot...
  11. P

    Air-to-Air or only Air-to-Water Heat Pump?

    In my new high efficiency house, I will have UFH with an Air to Water (A2W). Heat pump Monobloc, but for extra cooling on hot days I think extra air cooling with FCUs is needed: Should I use a secondary Air (to coolant) to Air system, or stick with just the Air to Water system to also drive my...
  12. R

    How do I stop Air being sucked into pump of Vaillant heat only boiler?

    Vaillant ecoTEC Plus 400 15kW Heat Only Boiler I've got air in the pump and one gas engineer has said I need to move the pipes as they are configured incorrectly. Another said all I need to do is add an AAV as high as possible. Another said I should seal the system. Boiler was installed in...
  13. S

    Grundfos ups3 pump issue

    Ups pump issue Fairly recently, say 12 months ago, we had a new pump fitted. It's a grundfos ups3 15- 50/65 130. (We have a small expansion tank next to the large tank in the loft. So not a sealed system) After it runs normally for several hours it just stops working. The radiators obviously...
  14. R

    How long to install shower pump? Reality check required, please.

    Hi. I'm currently estimating on installing a new shower pump to feed an existing bath/shower diverter. Hot side: fit flange and spherical valve and Y strainer to old cylinder, reduce to 15 mm and to pump flexi and reconnect existing hot distributing pipe. Repair shelf in AC and fit twin...
  15. B

    How to properly plum a utility sink with pump in basement?

    I just purchased a home and I would like to install a utility sink in the basement with a pump. Below is a pic of the room in the basement. The sink would go under the window. I have a pic of a diagram of the plumbing I would like to install. I am just a beginner and do not have much experience...
  16. J

    Grant Vortex Blue no power to CH pump

    Hi, I have an issue with my Grant Vortex internal combi boiler. Specifically the electrical side. Everything was working fine (with a dual channel Hive system) but then the central hearing stopped working. When looking it seemed like there were a number of loose contacts as when we moved the...
  17. S

    Auto Bypass Valve OR Proportional Pressure pump mode – how to choose?

    I have read that an Auto Bypass Valve (ABV) is not compatible with a pump set to Proportional Pressure (PP) mode. I have a recently fitted Vaillant EcoFit Pure 430 heat-only boiler + Vaillant SensoComfort weather sensing controls + 15 rads (12 with TRVs) across 2 CH zones + a static bypass...
  18. P

    Noise water pump, any

    Hi all, I’m looking for a bit of advice. A flat two stories up from mine has installed a water pump that feeds all of their outlets (shower, toilet, sinks, washing machine, dishwasher …) from a loft storage tank. Alas, the pump seems to be sending vibration down the walls and into my flat. The...
  19. J

    Pump control to thermostat wiring

    Hi Installing single zone ufl with Grundfos pump/mixing valve and heatmiser thermostat - not crystal clear from the diagrams how the control connection to LR/LS should be wired (i.e. red on the pump control diagram) Any advice much appreciated!
  20. J

    Water pressure - electric shower or water pump?

    Hi All, I hope you are doing well. My question is about the dilemma of installing an electric shower or a water pump instead? The hot water pressure in upstairs bathroom is a bit weak. I could get an electric shower installed but I also consider a water pump. What would you suggest? A pump...

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